CN117761985A - Powder box and imaging equipment - Google Patents

Abstract

The invention provides a powder box and imaging equipment, wherein the powder box comprises a box body, a rotating piece, a rotating force transmission assembly and a detection assembly; the rotating piece is rotatably supported on the box body, the rotating force transmission assembly is arranged at the axial end of the rotating piece, and the detection assembly and the rotating force transmission assembly are arranged on the same side of the box body; the box body is provided with a mounting groove, and the detection assembly is arranged in the mounting groove; the detection assembly comprises a detection piece and an elastic resetting piece, the detection piece comprises a main body part, a trigger part, a guide part and a limiting part, the trigger part and the limiting part are respectively arranged at two ends of the main body part, the guide part is arranged between the trigger part and the limiting part, the trigger part is stressed to drive the limiting part to move from a retracted position to an extended position, a sliding rail is arranged on the box body, the guide part is in sliding fit with the sliding rail, and the elastic resetting piece drives the limiting part to reset. The powder box can improve the smoothness of the installation and avoid damage of detection pieces.

Description

Powder box and imaging equipment

Technical Field

The present invention relates to the field of electrophotographic imaging, and in particular, to a powder cartridge and an imaging apparatus.

Background

An electrophotographic image forming apparatus is an apparatus for forming an image on a printing medium such as paper using the principle of electrophotography, and includes a printer and a cartridge detachably mounted in the printer.

Referring to fig. 1, a conventional powder cartridge includes a developing unit 101 and an image forming unit 102. The developing unit 101 includes a developing frame 111, a stirring frame for conveying the toner in the toner hopper toward the developing roller 113, a developing roller 113 for conveying the toner to the surface of the photosensitive drum 122 for latent image, a transmission assembly for driving each moving member in the developing unit 101 to rotate, and the like, and the developing roller 113 and the stirring frame are rotatably mounted on the developing frame 111. The outer wall of the developing frame 111 is further provided with a chip holder 103, and the chip is detachably mounted on the chip holder 103.

The image forming unit 102 includes a drum frame 121, a photosensitive drum 122, a driving force receiving member, and the like, the photosensitive drum 122 being rotatably mounted on the drum frame 121, the driving force receiving member being provided at an axial end of the photosensitive drum 122, the rotational force of the image forming apparatus being coupled to the photosensitive drum 122. The developing frame 111 is hinged to the drum frame 121, and when the photosensitive drum 122 is cleaned, the developing frame 111 may be rotated at an angle with respect to the drum frame 121, thereby driving the developing roller 113 to be separated from the photosensitive drum 122.

When the powder box is correctly installed in the installation cavity of the imaging device, the lower side surface of the chip seat 103 contacts with the lower surface of the installation cavity, and the lower surface of the installation cavity of the imaging device is easily polluted by carbon powder, so that the chip seat 103 of the developing frame 111 can continuously scrape and pollute the carbon powder in the installation cavity onto the chip 107 in the process of moving along with the developing frame 111, and the electric contact surface 108 of the chip 107 is easily polluted, thereby causing poor electric contact between the chip 107 and the electric contact 301 of the imaging device.

In addition, the die pad 103 is provided with a first rib 105 and a second rib 106 in a second direction perpendicular to the developing roller 113. When the compact is mounted to the print, the first web 105 and the second web 106 guide the imaging device electrical contacts 301 in the imaging device mounting cavity. The addition of the first rib plate 105 and the second rib plate 106 on both sides of the chip carrier 103 also increases the structural complexity of the chip carrier 103, which is not beneficial to low-cost production.

Further, as shown in fig. 2, in the conventional toner cartridge, the electrical contact pins 302 on the image forming apparatus electrical contacts 301 are perpendicular to the electrical contact surfaces 108 of the chip 107, and a straight line L1 passing through the contact points of the chip 107 with the electrical contact pins 302 on the image forming apparatus electrical contacts 301 and perpendicular to the electrical contact surfaces 108 intersects with a line P1 passing through the axis of the photosensitive drum 122 and the projection of the axis of the positioning post 123 in the axial direction of the photosensitive drum 122. Since the movable amount of the electrical contact 301 of the imaging device is small and the electrical contact pins 302 are oriented perpendicular to the electrical contact surface 108, the powder cartridge can press the electrical contact 301 during the mounting process of the powder cartridge or when the imaging device vibrates, so that the movable amount of the electrical contact 301 is easily forced to exceed the original movable length, and the electrical contact 301 of the imaging device is damaged.

In addition, the positioning column 123 of the existing powder box is arranged on the drum frame 121, and vibration can be transmitted to the drum frame 121 through the positioning column 123 due to vibration in the printing process of the imaging equipment, and then transmitted to the photosensitive drum 122, and the printing quality of the powder box can be affected by vibration of the photosensitive drum 122.

Further, referring to fig. 3 and 4, there is a powder cartridge provided with a detecting member 13, the detecting member 13 including a rotation shaft 131, a guide portion 132, and a stopper portion 133, in addition to having the above-described structure and having the above-described problems. Wherein the detecting member 13 is connected to the torsion spring such that the detecting member 13 can rotate around the rotation shaft 131. The detecting member 13 slides along the rail 14 of the detecting member 13 of the image forming apparatus and the guide 132 during the process of mounting the cartridge to the mounting chamber of the image forming apparatus, thereby guiding the stopper 133 of the detecting member 13 to be inserted into the positioning groove 15 of the image forming apparatus. A sensor (not shown) is provided in the positioning groove 15 of the imaging device, and the imaging device recognizes that the cartridge is properly mounted when the detecting member 13 is inserted into the positioning groove 15 of the imaging device. Meanwhile, after the limiting part 133 of the detecting piece 13 is inserted into the positioning groove 15 of the imaging device, the limiting part is matched with the positioning groove 15, so that the powder box is righted, and the rotary force transmission assembly of the powder box is coupled with the transmission head 16 of the imaging device.

The powder box detection piece 13 is exposed and arranged near the driving head 17, when a user unfamiliar with the powder box installation mode installs the powder box, the powder box detection piece 13 is installed with the powder box through elastic swinging in the powder box installation process, and the end part of the detection piece 13 is blocked with the internal structure of the imaging equipment after the powder box is arranged outside the detection piece 13, so that the smoothness of the installation is affected. When the powder box is installed and taken out, the end part of the detection piece 13 is separated from the imaging equipment by driving the detection piece 13 to swing through the spring, and the powder box also needs to be meshed with and separated from the transmission head 16 in the installation or taking out process, so that the installation difficulty of the powder box is increased by the integrated linkage structure, in addition, the swinging spring driving the detection piece 13 is easy to lose efficacy, the condition that the powder box is not installed in place is caused, the detection piece 13 collides with the transmission head 16 of the imaging equipment, in addition, the position of the detection piece 13 arranged in the powder box is close to the edge of the powder box, the detection piece 13 is of a cantilever structure, and the detection piece is exposed to the powder box, so that the detection piece is easy to collide in the transportation process to cause damage.

Disclosure of Invention

A first object of the present invention is to provide a powder cartridge capable of improving the smoothness of the mounting while avoiding damage to the detecting member.

A second object of the present invention is to provide an image forming apparatus having the above-described cartridge.

In order to achieve the first object, the present invention provides a powder box, comprising a box body, a rotating member, a rotating force transmission assembly and a detection assembly; the rotating piece is rotatably supported on the box body, the rotating force transmission assembly is arranged at the axial end of the rotating piece, and the detection assembly and the rotating force transmission assembly are arranged on the same side of the box body; the box body is provided with a mounting groove, and the detection assembly is arranged in the mounting groove; the detection assembly comprises a detection piece and an elastic resetting piece, the detection piece comprises a main body part, a trigger part, a guide part and a limiting part, the trigger part and the limiting part are respectively arranged at two ends of the main body part, the guide part is arranged between the trigger part and the limiting part, the trigger part is stressed to drive the limiting part to move from a retracted position to an extended position, a sliding rail is arranged on the box body, the guide part is in sliding fit with the sliding rail, and the elastic resetting piece drives the limiting part to reset.

Therefore, the detection part is arranged to be in a structure of sliding fit with the box body, when the door cover is closed after the powder box packaging machine, the door cover applies an acting force to the trigger part, and the detection part is driven to move along the sliding rail, so that the limit part moves from the retracted position to the extended position and is matched with the positioning groove in the imaging device, and meanwhile, the detection switch is triggered. In addition, when taking out the powder box from imaging device, open imaging device's door closure, the effort that the door closure applyed trigger portion disappears, and elastic reset piece is driven the detection piece under self elastic restoring force effect and is reset, and spacing portion removes to the retracted position, and spacing portion withdraws from imaging device's constant head tank this moment. Through setting up the detection piece into with box body sliding fit's structure for in the transportation, the detection piece is in the retracted position all the time, avoids colliding with the damage that causes the detection piece. Meanwhile, since the detecting member is in the retracted position during the process of mounting the cartridge to the image forming apparatus, it does not collide with the structure inside the image forming apparatus, so the mounting process is smoother.

In a preferred embodiment, the middle part of the slide rail is higher than the two ends of the slide rail, and the retracted position is higher than the triggering position.

Therefore, when the limiting part is in the retracted position, the limiting part is higher than the position of the detection switch, so that the limiting part can be prevented from colliding with the transmission head when the powder box is installed in the imaging equipment.

The sliding rail is arc-shaped and bent upwards.

Thus, the smoothness of the movement of the detection member can be ensured.

The guide part comprises a first guide column and a second guide column which are arranged at intervals and are in sliding fit with the sliding rail.

Therefore, the two guide posts can better limit the moving path of the detection piece, so that the smoothness of the movement of the limiting part is ensured when the door cover is covered.

The main body part comprises a first main body section, a deformation part and a second main body section which are sequentially connected; the trigger part is located the one end that deformation portion was kept away from to first main part section, and spacing portion is located the one end that deformation portion was kept away from to second main part section, and first guide post setting is on first main part section and is close to deformation portion setting, and the second guide post setting is on the second main part section and is close to deformation portion setting.

Therefore, the sliding rail extends in an arc shape, the moving paths of the two guide posts are different, the deformation part is arranged to facilitate the movement of the two guide posts along the arc-shaped sliding rail, and the guide posts and the sliding rail are prevented from being blocked.

Further, the deformation portion is made of a flexible material.

In one preferred embodiment, the main body portion is further provided with an abutment portion, the abutment portion is disposed close to the trigger portion and protrudes outward from a side wall of the main body portion, a first end of the elastic restoring member abuts against the abutment portion, and a second end of the elastic restoring member abuts against a side wall of the mounting groove.

It follows that the arrangement of the abutment facilitates the mounting and support of the resilient return element.

In one preferred embodiment, the mounting groove includes an elastic member mounting portion and a detecting member mounting portion arranged along a longitudinal direction of the case, the elastic restoring member is mounted in the elastic member mounting portion, and the detecting member is mounted in the detecting member mounting portion.

Therefore, the elastic reset piece and the detection piece are respectively arranged in the two grooves, and interference is prevented when the elastic reset piece and the detection piece move or deform.

The further scheme is that the number of the guide parts and the number of the sliding rails are two, the two sliding rails are respectively arranged on the two side walls of the installation part of the detection part, the two guide parts are respectively arranged on the two sides of the main body part, and one guide part is in sliding fit with one sliding rail.

Therefore, the stability of the sliding connection of the detection piece and the sliding rail can be improved.

In order to achieve the second object, the invention provides an imaging device, which is provided with a mounting cavity and a door cover, wherein the door cover is positioned at a mounting opening of the mounting cavity, a positioning groove is arranged in the mounting cavity, a detection switch is arranged in the positioning groove, the powder box is detachably arranged in the mounting cavity, after the door cover is covered, the door cover is abutted with a triggering part and pushes the detection part to move, a limiting part moves from a retracted position to an extended position and enters the positioning groove, and the limiting part triggers the detection switch.

Drawings

Fig. 1 is a block diagram of a chip and a chip holder in a conventional compact.

Fig. 2 is a right side view of a conventional compact.

Fig. 3 is a block diagram of the drive end of a conventional compact mated with a positioning slot and drive head of an imaging device.

Fig. 4 is a perspective view of a conventional compact.

Fig. 5 is a block diagram of the drive head and a first embodiment of the compact of the present invention.

Fig. 6 is a partial construction view of a first embodiment of the compact of the present invention.

Fig. 7 is an exploded view of a first embodiment of the compact of the present invention from a first perspective.

Fig. 8 is an exploded view of a first embodiment of the compact of the present invention from a second perspective.

Fig. 9 is a structural view of the first embodiment of the powder box of the present invention, in which the electrical contact limiting groove is matched with the chip carrier.

Fig. 10 is a block diagram of a first view of a chip carrier according to a first embodiment of the invention.

Fig. 11 is a block diagram of a second view of a chip carrier according to a first embodiment of the invention.

Fig. 12 is a schematic view showing a cooperation structure between a chip holder and a bottom wall of a mounting cavity in the powder box according to the first embodiment of the present invention.

Fig. 13 is a right side view of a second embodiment of the compact of the present invention.

Fig. 14 is an enlarged view of a portion of a second embodiment of the compact of the present invention.

Fig. 15 is an exploded view of a chip and a chip holder in a second embodiment of the compact of the present invention.

Fig. 16 is a structural view of a fourth embodiment of the compact of the present invention.

Fig. 17 is an exploded view of a fourth embodiment of the compact of the present invention.

Fig. 18 is a block diagram of a sixth embodiment of a compact of the present invention from a first perspective.

Fig. 19 is an exploded view of a sixth embodiment of a compact of the present invention from a first perspective.

Fig. 20 is a block diagram of a second view of a sixth embodiment of a compact of the present invention.

Fig. 21 is an exploded view of a sixth embodiment of a compact of the present invention from a second perspective.

Fig. 22 is a block diagram of the driving end of the seventh embodiment of the compact of the present invention.

Fig. 23 is an exploded view of a cartridge body and a detecting assembly according to a seventh embodiment of the present invention.

Fig. 24 is a block diagram of a seventh embodiment of the present invention mated with a positioning slot and drive head of an imaging device.

The invention is further described below with reference to the drawings and examples.

Detailed Description

First embodiment of the compact:

referring to fig. 5 to 8, the cartridge is detachably mounted in an image forming apparatus, the electrophotographic image forming apparatus includes a main body in which a mounting chamber is provided, a transmission head 10 is provided on a side wall of the mounting chamber, the transmission head 10 includes a gear portion 11 and a coupling recess, the gear portion 11 is located on a peripheral wall of the transmission head 10, and the coupling recess is located at an axial end of the transmission head 10.

The cartridge includes a developing unit 2 and a drum unit 3, the developing unit 2 includes a developing frame 21, and a developing roller 22 and a stirring frame (not shown), and a force receiving portion (not shown) is provided at the bottom of one end of the developing frame 21. The drum unit 3 includes a drum frame 31, a photosensitive drum 4 rotatably supported on the drum frame 31, and a cleaning blade 33 mounted on the drum frame 31, both ends of the cleaning blade 33 being supported on the drum frame 31, and blades of the cleaning blade 33 being abutted on the photosensitive drum 4 for cleaning residual powder on the photosensitive drum 4. The drum frame 31 and the developing frame 21 constitute a cartridge body of the toner cartridge, and the developing roller 22, the agitating frame, and the photosensitive drum 4 are rotatably mounted as rotating members on the cartridge body and each extend along the longitudinal direction of the cartridge body.

The developing frame 21 includes a developing frame main body 211 and two end caps 212, the two end caps 212 are respectively provided at both ends of the developing frame main body 211, the two end caps 212 are each provided with a developing hinge portion 213, both ends of the drum frame 31 are each provided with an imaging hinge portion 311, the powder cartridge further includes two positioning pins 12, and one positioning pin 12 sequentially passes through one imaging hinge portion and the developing hinge portion 213 of the same side, thereby realizing hinge of the developing frame 21 and the drum frame 31.

An elastic member such as a spring (not shown) is provided on the top of one end of the drum frame 31 remote from the force receiving portion, and both ends of the spring are respectively abutted against the developing frame 21 and the drum frame 31. The image forming apparatus is provided with a biasing member (not shown) which, after biasing force is applied to the force receiving portion, rotates the developing frame 21 relative to the drum frame 31, separates the developing roller 22 from the photosensitive drum 4, moves the developing roller 22 relative to the photosensitive drum 4 to a cleaning position, and is in a compressed state by a spring force; when the urging member moves reversely and the urging force to the force receiving portion is removed, the spring urges the developing frame 21 to rotate by the elastic restoring force of the spring itself, so that the developing roller 22 abuts against the photosensitive drum 4, and the developing roller 22 moves to the image forming position with respect to the photosensitive drum 4.

In addition, in the present embodiment, the developing frame 21 is in a spacing fit with the installation chamber, only the developing frame 21 of the developing frame 21 and the drum frame 31 is in contact with the chamber wall of the installation chamber, that is, the drum frame 31 is not in contact with the chamber wall of the installation chamber, and the drum frame 31 is separated from the chamber wall of the installation chamber by a gap.

One axial end of the photosensitive drum 4 is provided with a rotational force transmitting assembly 41, one axial end of the developing roller 3 is provided with a developing roller gear 5, an axial end of the agitator is provided with an agitator gear, the cartridge frame 20 includes the developing frame 21 and the drum frame 31, and the rotational force transmitting assembly 41, the agitator gear and the developing roller gear 5 are located on the same side of the cartridge frame 20 to constitute a gear train.

The box frame 20 is provided with a recess 201 near the rotational force transmission assembly 41, the recess 201 is recessed from a first end of the box frame 20 toward a second end of the box frame 20, and the driving head 10 may extend into the recess 201, so that a coupling recess of the driving head 10 is engaged with the rotational force transmission assembly 41 to receive the driving force.

The drum frame 31 includes a frame main body portion 312, a first side extension portion 313 and a second side extension portion 314, the frame main body portion 312 extends along the axial direction of the photosensitive drum 4, the first side extension portion 313 and the second side extension portion 314 are respectively disposed at two ends of the frame main body portion 312 and extend downward from the frame main body portion 312, a chip holder 6 is disposed on the first side extension portion 313, the chip holder 6 and the drum frame 31 are integrally formed, a chip 60 is mounted in the chip holder 6, an electrical contact limiting groove 100 is disposed at a position, close to the bottom, of a mounting cavity of the imaging device, an electrical contact (not shown) is disposed in the electrical contact limiting groove 100, an electrical contact pin is disposed on the electrical contact, and the chip 60 is in electrical contact with the electrical contact pin of the electrical contact.

Referring to fig. 9 to 12, the chip holder 6 includes a mounting groove 61, a holder top wall 62 and a holder bottom wall 63, the chip 60 is mounted in the mounting groove 61, an opening 65 is defined between the holder top wall 62 and the holder bottom wall 63, an electrical contact surface 601 of the chip 60 is disposed toward the opening 65, and an electrical contact pin is disposed near the bottom of the mounting cavity.

The upper surface of the seat top wall 62 and the lower surface of the seat bottom wall 63 are both plane, that is, the seat top wall 62 and the seat bottom wall 63 of the chip seat are not provided with rib plates or other guiding and positioning structures, so that the structure of the chip seat 6 can be simplified, the design and manufacturing cost of a die can be reduced, one sides, close to the electric contact surface 601 of the chip 60, of the seat top wall 62 and the seat bottom wall 63 are provided with guiding inclined planes 64, and the guiding inclined planes 64 are in sliding fit with the side walls 105 of the electric contact limiting grooves 100 in the direction of inserting the chip seat 6 into the electric contact limiting grooves 100.

In the axial direction of the photosensitive drum 4, the guide slope 64 is located on the side of the chip carrier 6 away from the frame main body portion 312, and the guide slope 64 gradually gets away from the frame main body portion 312 from the side near the opening 65 to the side far from the opening 65.

The base wall 63 of the chip carrier 6 is spaced from the bottom wall 104 of the mounting cavity by a minimum distance H, and the chip carrier 6 is not in contact with the bottom wall of the mounting cavity and forms a distance space therebetween to further reduce the possibility of contamination of the electrical contact surface 601 of the chip 60 on the chip 60.

The first side extension 313 is further provided with a first supporting hole 315 and a second supporting hole 316, the first end of the photosensitive drum 4 is in running fit with the first supporting hole 315, and the chip holder 6 is located below the first supporting hole 315. The second supporting hole 316 is located between the first supporting hole 315 and the chip carrier 6, the first end of the developing roller 22 is rotatably fitted to the second supporting hole 316, and the second end of the developing roller 22 is rotatably connected to the developing frame 21.

The first side extension portion 313 is provided with a first positioning column 317, the second side extension portion 314 is provided with a second positioning column 318, the first positioning column 317 and the second positioning column 318 are coaxially disposed and both extend along the axial direction of the photosensitive drum 4, the first positioning column 317 extends from the outer surface of the first side extension portion 313 in a direction away from the frame main body portion 312, and the second positioning column 318 extends from the outer surface of the second side extension portion 314 in a direction away from the frame main body portion 312. The first positioning column 317 and the second positioning column 318 are used for being in limit fit with a positioning groove (not shown) on the inner side wall of the mounting cavity to realize positioning of the powder box when the powder box is mounted to the imaging device.

Therefore, the chip holder for fixing the chip is arranged on the drum frame, so that when the photosensitive drum needs to be cleaned, the separation mechanism in the imaging device drives the developing unit to move, and in the process of separating the developing roller from the photosensitive drum, the chip holder cannot move because the imaging unit is fixed relative to the imaging device, and after the powder box is installed in the imaging device, the chip electric contact surface is always in stable contact with the imaging device electric connector, so that the chip holder is prevented from being arranged on the movable developing unit, and when the developing unit moves relative to the imaging unit, the chip holder and the chip electric contact surface on the developing unit move, so that the stability of electric contact between the chip electric contact surface and the electric contact of the imaging device is influenced.

Second embodiment of powder box:

as a description of the second embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

Referring to fig. 13 to 15, in the present embodiment, the electrical contact pins 2115 of the electrical contacts 2110 form an acute angle θ with the electrical contact surface 2601 of the chip 260, and the chip 260 is disposed obliquely upward. The electrical contact pins 2115 are angled at an angle θ from the electrical contact face 2601 that is greater than 0 degrees and less than 90 degrees. Preferably, a line P of projection of the axis of the photosensitive drum 224 and the axis of the second positioning post 2318 on the second side extension 2314 along the axial direction of the photosensitive drum 224 is parallel to the normal L of the electrical contact face 2601.

In this embodiment, the mounting groove 261 is disposed obliquely in a direction parallel to the electrical contact surface 2601 of the chip.

Therefore, through the inclined arrangement of the chip, the connecting line of the projection of the axis of the photosensitive drum and the axis of the second positioning column along the axial direction of the photosensitive drum is parallel to the normal line of the electric contact surface, even if the powder box presses the electric contact during the installation process of the powder box or when the imaging device vibrates, the electric contact pin can contact the electric contact surface and simultaneously slide in an inclined plane due to the non-vertical state between the electric contact pin and the electric contact surface of the chip, so that the moving amount of the electric contact is reduced, and the damage to the electric contact of the imaging device is avoided.

Third embodiment of powder box:

as a description of the third embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

The bottom of the developing frame is not provided with a force receiving part, the imaging device is not provided with a force application member, but a spring is still arranged between the developing frame and the drum frame, and the developing frame can rotate in a small range relative to the drum frame, so that the developing roller is always abutted with the photosensitive drum, the developing roller is not separated from the photosensitive drum, and a cleaning step is not carried out.

Fourth embodiment of powder cartridge:

as a description of the fourth embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

Referring to fig. 16 and 17, in the present embodiment, a first positioning post 4317 is provided on the end cap 4212 of the developing frame 421 near the first side extension 4313, and at least a portion of the first positioning post 4317 extends from the outer surface of the first side extension 4313 in a direction away from the frame main body 4312.

Fifth embodiment of powder box:

as a description of the fifth embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

In this embodiment, the first reference column and the second reference column are not arranged on the developing frame and the drum frame, and the two end walls of the developing frame are in limit fit with the mounting cavity in the length direction of the developing frame, and the bottom wall of the developing frame is in contact with the mounting cavity, so that the powder box is positioned relative to the mounting cavity of the imaging device.

Sixth embodiment of powder cartridge:

as a description of the sixth embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

Referring to fig. 18 to 21, in the present embodiment, the developing frame 621 is hinged with the drum frame 631 by a first positioning post 6317 and a second positioning post 6318. The first positioning column 6317 and the second positioning column 6318 are respectively disposed at two ends of the developing frame 621, the developing frame 621 includes a frame main body 6211, a positioning column support 6212 and a developing end cover 6213, the developing roller is mounted on the frame main body 6211, the positioning column support 6212 and the developing end cover 6213 are respectively disposed at two ends of the frame main body 6211, the second positioning column 6318 and the developing end cover 6213 are integrally formed, the positioning column support 6212 includes a fixing plate 6214 and a first positioning column 6317, and the first positioning column 6317 is disposed perpendicular to the fixing plate 6113.

The first side extension portion 6313 of the drum frame 631 is provided with a positioning hole 61, the positioning hole 61 penetrates the first side extension portion 6313 in the length direction of the drum frame 631, the first positioning column 6317 penetrates the positioning hole 61 and extends in a direction away from the drum frame 631, and the fixing plate 6214 is located between the end wall of the frame body 6211 and the first side extension portion 6313 to limit the fixing plate 6214.

The second side extension portion 6314 of the drum frame 631 is provided with a positioning opening 6315, and the positioning opening 6315 extends from an edge of the second side extension portion 6314 in a direction perpendicular to the length direction of the drum frame 631. The positioning opening 6315 penetrates the second side extension portion 6314 in the length direction of the drum frame 631, the positioning opening 6315 includes a guide opening 63151 and a positioning hole 63152, the guide opening 63151 is located at one side of the positioning hole 63152 in the radial direction and communicates with the positioning hole 63152, the insertion opening 6316 of the positioning opening 6315 is located at the edge of the second side extension portion 6314 and at the end of the guide opening 63151 away from the positioning hole 63152, the guide opening 63151 gradually decreases in width from the end near the insertion opening 6316 to the end near the positioning hole 63152, and the width of the end of the guide opening 63151 near the positioning hole 63152 is smaller than the diameter of the positioning hole 63152.

The second positioning column 6318 is engaged with the positioning opening 6315 from the insertion opening 6316, and the second positioning column 6318 passes through the positioning opening 6315 along the length direction of the drum frame 631 and extends in a direction away from the drum frame 631.

In this embodiment, the first positioning post 6317 and the second positioning post 6318 for positioning the powder box are directly used as hinge shafts, and meanwhile, the positioning hole 61 and the positioning opening 6315 are formed in the drum frame 631, when the powder box is assembled, the first positioning post 6317 and one end of the positioning hole 61 can be assembled first, and then the second positioning post 6318 is clamped into the opening 6315 in an interference pressing manner, so that the assembly process can be simplified, and the assembly efficiency can be improved. The positioning hole 61 can realize a limit of the developing frame 621 with respect to the drum frame 631 in a direction perpendicular to a length direction of the cartridge, and the positioning opening 6315 can facilitate a clamping of the second positioning post 6318 with the positioning opening 6315.

In this embodiment, two springs (not shown) are respectively mounted on the spring mounting post 62131 at the tip end of the developing end cover 6213 and the spring mounting post 62111 at the end of the frame main body 6211 of the developing frame 621 remote from the developing end cover 6213.

From the above, through the spacing cooperation of the installation chamber of development frame and image forming apparatus for the powder box is fixed a position for image forming apparatus, and, through setting up the drum frame to be contactless with the chamber wall of installation chamber, simultaneously, set up the elastic component between development frame and drum frame, like this, when image forming apparatus produces vibrations in the printing process, the in-process that vibrations passed through the developing unit and transmitted the image forming unit, the elastic component that sets up between development frame and drum frame can play buffering and cushioning effect, can weaken the vibrations that transmit the image forming unit greatly, make the sensitization drum keep steady state, thereby guarantee printing quality. In addition, in the existing powder box, a locating pin is required to be additionally arranged to realize the hinge joint between the developing frame and the drum frame, the locating column is directly used as a hinge shaft, and meanwhile, the locating hole and the locating opening are formed in the drum frame, one end provided with the locating hole can be assembled firstly and then clamped into the locating opening in an interference pressing mode when the powder box is assembled, so that the assembly process can be simplified, and the assembly efficiency is improved. The locating hole can realize the spacing of developing frame in perpendicular to powder box length direction for the drum frame, and the locating opening can be convenient for reference column and locating opening's joint.

Seventh embodiment of powder box:

as a description of the seventh embodiment of the compact of the present invention, only the differences from the first embodiment of the compact described above will be described below.

Referring to fig. 22 to 24, in this embodiment, the imaging apparatus is further provided with a door cover (not shown), the door cover is located at a mounting opening of the mounting cavity, a positioning groove 701 and a guiding groove 702 are provided on an inner wall of the mounting cavity, a detection switch (not shown) is provided in the positioning groove 701, and a detection head is a sensor.

The powder box further comprises a detection component 8, and the detection component 8 and the rotary force transmission component 9 are arranged on the same side of the box body 7. The box body 7 is provided with a mounting groove 71, and the detection assembly 8 is arranged in the mounting groove 71. Alternatively, the mounting groove 71 may be located on the developing frame 72 or on the drum frame 73. In this embodiment, the mounting groove 71 is located on the drum frame 73.

The sensing assembly 8 includes a sensing member 81 and a resilient return member 82, preferably the resilient return member 82 is a spring. The mounting groove 71 includes an elastic member mounting portion 74 and a detection member mounting portion 75 arranged along the longitudinal direction of the case 7, an elastic return member 82 is mounted in the elastic member mounting portion 74, and a detection member 81 is mounted in the detection member mounting portion 75.

The detecting piece 81 comprises a main body 83, a triggering part 84, a first guiding part 85, a second guiding part 86 and a limiting part 87, wherein the triggering part 84 and the limiting part 87 are respectively arranged at two ends of the main body 83, the first guiding part 85 is arranged between the triggering part 84 and the limiting part 87, the triggering part 84 is forced to drive the limiting part 87 to move from a retracted position to an extended position, the box body 7 is provided with a sliding rail 76, the first guiding part 85 is in sliding fit with the sliding rail 76, and the elastic resetting piece 82 drives the limiting part 87 to reset.

The middle of the rail 76 is higher than the ends of the rail 76, and preferably the rail 76 is curved and curves upward, with the retracted position being higher than the trigger position. When the limiting part 87 is at the retracted position, the limiting part 87 is higher than the position at the detection switch, so that the limiting part 87 can be prevented from colliding with the transmission head 703 when the powder box is installed in the imaging device.

The first guide portion 85 includes a first guide post 851 and a second guide post 852, which are spaced apart and each slidingly engaged with the slide rail 76. The two guide posts can better limit the moving path of the detecting member 81 so as to ensure the smoothness of the movement of the limiting part 87 when the door cover is closed.

The main body 83 includes a first main body section 831, a deformation portion 833 and a second main body section 832 that connect gradually, the trigger portion 84 is located the one end that deformation portion 833 was kept away from to the first main body section 831, the limit portion 87 is located the one end that deformation portion 833 was kept away from to the second main body section 832, the first guide post 851 sets up on the first main body section 831 and is close to deformation portion 833 setting, the second guide post 852 sets up on the second main body section 832 and is close to deformation portion 833 setting. The deformation portion 833 is made of a flexible material capable of being deformed.

The main body 83 is further provided with an abutment portion 834, the abutment portion 834 being disposed adjacent to the trigger portion 84 and protruding outwardly from a side wall of the first main body section 831, a first end of the elastic restoring member 82 abutting the abutment portion 834, and a second end of the elastic restoring member 82 abutting a side wall of the elastic member mounting portion 74. The second guiding part 86 is disposed on the second main body section 832 and is disposed close to the limiting part 87, the second guiding part 86 and the limiting part 87 are disposed on the same side of the second main body section 832, the second guiding part 86 extends into the guiding groove 702 of the imaging device and slides along the guiding groove 702, the height of the second guiding part 86 protruding outwards from the side wall of the second main body section 832 is larger than the height of the limiting part 87 protruding outwards from the second main body section 832, and the second guiding part 86 is disposed between the limiting part 87 and the second guiding column 852.

The number of the first guiding parts 85 and the number of the sliding rails 76 are two, the two sliding rails 76 are respectively arranged on two side walls of the detecting piece mounting part 75, the two first guiding parts 85 are respectively arranged on two sides of the main body part 83, and one first guiding part 85 is in sliding fit with one sliding rail 76.

When the door cover is closed after the powder box packaging machine, the door cover applies a force to the trigger part 84 to drive the detection part 81 to move, the first guide column 851 and the second guide column 852 move along the sliding rail 76, the moving track of the first guide column 851 moves from the position A of the sliding rail 76 to the position B in fig. 22, the moving track of the second guide column 852 moves from the position B of the sliding rail 76 to the position C, the position A and the position C are respectively two ends of the sliding rail 76, the position B is the midpoint of the sliding rail 76 and is the highest point of the sliding rail 76, and in the moving process of the detection part 81, the second guide part 86 slides along the guide groove 702 of the imaging device, the limiting part 87 moves from the retracted position to the extended position and enters the positioning groove 701 in the imaging device to be matched with the positioning groove 701, the detection switch is triggered, and the imaging device recognizes that the powder box is correctly mounted. After the limiting part 87 is matched with the positioning groove 701, the powder box is righted and positioned, so that the rotary force transmission assembly 9 of the powder box can be correctly coupled with the transmission head of the imaging device.

In addition, when the powder cartridge is taken out from the image forming apparatus, the door of the image forming apparatus is opened, the force applied by the door to the trigger 84 disappears, the elastic restoring member 82 drives the detecting member 81 to restore under the action of the elastic restoring force of itself, the limiting portion 87 moves to the retracted position, and at this time, the limiting portion 87 is withdrawn from the positioning groove 701 of the image forming apparatus, and the detecting member 81 is restored to the initial position.

From the above, through setting up the detection piece into with box body sliding fit's structure for in the transportation, the detection piece is in the retracted position all the time, avoids colliding with the damage that causes the detection piece. Meanwhile, since the detecting member is in the retracted position during the process of mounting the cartridge to the image forming apparatus, it does not collide with the structure inside the image forming apparatus, so the mounting process is smoother.

In addition, the elastic restoring piece can be a pressure spring, a tension spring or a torsion spring, and can also be made of elastic materials such as rubber and the like. The number of the elastic resetting pieces can be more than two. The developing frame can be provided with a positioning column at one end only, namely, only a first positioning column or only a second positioning column is arranged, and the positioning column is in limit fit with a positioning groove on the imaging device. The positioning column can be integrally formed with the developing frame; or the positioning column is fixedly connected with the developing frame through a fixing piece; or the positioning column is clamped and fixed with the developing frame. The angle of the electrical contact pins to the electrical contact surface may be varied as desired. The chip seat and the drum frame can also be fixedly connected through a fixing piece; or the chip seat and the drum frame are fixedly connected in a welding or clamping way. One of the upper surface of the seat top wall and the lower surface of the seat bottom wall may also be provided as a planar wall. In the axial direction of the photosensitive drum, the guide inclined surface may be located on a side of the chip holder close to the frame main body portion, and the guide inclined surface gradually approaches the frame main body portion from a side close to the opening to a side far from the opening. The guide inclined planes are arranged on the two sides of the chip seat in the axial direction of the photosensitive drum, and the guide inclined planes on the two sides of the chip seat are gradually far away from each other from one side close to the opening to one side far away from the opening. The size of the spacing distance H between the bottom wall of the chip seat and the bottom wall of the mounting cavity can be changed according to the requirement. The chip carrier may also be disposed on the developing frame. The above-described modifications can also achieve the object of the present invention.

Finally, it should be emphasized that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, but rather that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the invention, and any modifications, equivalent substitutions, improvements, etc. are intended to be included within the scope of the present invention.

Claims (10)

1. The powder box comprises a box body, a rotating piece, a rotating force transmission assembly and a detection assembly;

the rotating member is rotatably supported on the box body, the rotating force transmission assembly is arranged at the axial end of the rotating member, and the detection assembly and the rotating force transmission assembly are arranged on the same side of the box body;

the method is characterized in that:

the box body is provided with an installation groove, and the detection assembly is arranged in the installation groove;

the detection assembly comprises a detection part and an elastic resetting part, the detection part comprises a main body part, a triggering part, a guiding part and a limiting part, the triggering part and the limiting part are respectively arranged at two ends of the main body part, the guiding part is arranged between the triggering part and the limiting part, the triggering part is driven by stress to move from a retracted position to an extended position, a sliding rail is arranged on the box body, the guiding part is in sliding fit with the sliding rail, and the elastic resetting part is driven by the limiting part to reset.

2. The compact of claim 1, wherein:

the middle part of the sliding rail is higher than the two ends of the sliding rail, and the retracted position is higher than the triggering position.

3. The compact of claim 2, wherein:

the sliding rail is arc-shaped and is bent upwards.

4. The compact of claim 2, wherein:

the guide part comprises a first guide column and a second guide column which are arranged at intervals and are in sliding fit with the sliding rail.

5. The compact of claim 4, wherein:

the main body part comprises a first main body section, a deformation part and a second main body section which are sequentially connected;

the trigger part is located the first main part section is kept away from the one end of deformation portion, spacing portion is located the second main part section is kept away from the one end of deformation portion, first guide post sets up on the first main part section and be close to deformation portion sets up, the second guide post sets up on the second main part section and be close to deformation portion sets up.

6. The compact of claim 5, wherein:

the deformation portion is made of a flexible material.

7. The compact of any one of claims 1 to 6 wherein:

the main body part is also provided with an abutting part, the abutting part is close to the triggering part and protrudes outwards from the side wall of the main body part, the first end of the elastic resetting piece abuts against the abutting part, and the second end of the elastic resetting piece abuts against the side wall of the mounting groove.

8. The compact of any one of claims 1 to 6 wherein:

the mounting groove comprises an elastic piece mounting part and a detection piece mounting part which are arranged along the length direction of the box body, the elastic resetting piece is mounted in the elastic piece mounting part, and the detection piece is mounted in the detection piece mounting part.

9. The compact of claim 8, wherein:

the number of the guide parts and the number of the sliding rails are two, the two sliding rails are respectively arranged on the two side walls of the installation part of the detection part, the two guide parts are respectively arranged on the two sides of the main body part, and one guide part is in sliding fit with one sliding rail.

10. Imaging device, imaging device is provided with installation cavity and door closure, the door closure is located the installation mouth department of installation cavity, be provided with the constant head tank in the installation cavity, be provided with the detection switch in the constant head tank, its characterized in that, install the intracavity detachably and install the powder box of any one of claims 1 to 9, after the door closure, the door closure with trigger part butt promotes the detection piece removes, spacing portion moves to the extension position from the retracted position and gets into in the constant head tank, spacing portion triggers the detection switch.