Powdered structure and powder cartridge

Abstract

The present application relates to the printing technical field, especially to a powder outlet structure and a powder cartridge, the powder outlet structure cooperates with a powder cartridge body to form a powder cartridge, the powder cartridge is used in an electronic imaging device, the powder cartridge body obtains a rotating driving force from the electronic imaging device, the powder outlet structure comprises a blowing fan blade and an acceleration structure, the acceleration structure makes the rotating speed of the blowing fan blade greater than the rotating speed of the gear ring, so that the blowing fan blade rotates to generate wind and blow the developer in the powder mixing part to flow out from the powder outlet port, the powder outlet structure provided by the present application has the acceleration structure, the rotating speed of the powder cartridge with low rotating speed is accelerated, the blowing fan blade is driven to rotate at high speed relative to the rotating speed of the powder cartridge, wind is generated and the developer is blown out by blowing air through the powder outlet hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing technology, in particular to a powder outlet structure and a powder cartridge. BACKGROUND

[0002] The powder cartridge is a kind of replaceable consumable widely used in the field of electronic imaging, which is used in and provides developing agent for electronic imaging devices. The electronic imaging device is a device for forming an image on a recording material through electrophotographic imaging processing technology, such as an electrophotographic copy, a laser printer, an electrophotographic printer, a facsimile, a word processor, etc.

[0003] The existing powder cartridge mainly comprises a cartridge body and a powder outlet structure. A large amount of developing agent is contained in the cartridge body; the cartridge body is generally in a columnar structure. The powder outlet structure is generally arranged at one end of the cartridge body in the length direction. The electronic imaging device drives the powder cartridge to rotate at least in part, so that the developing agent can be discharged from the powder outlet structure.

[0004] REFERENCE Figure 1a and Figure 1b , Figure 1a and Figure 1b are an exploded view and a sectional view of a powder cartridge capable of being detachably mounted on a developing agent supplement device, and the sectional plane is a plane passing through the rotation axis of the cartridge body. The powder cartridge 900 comprises a cartridge body 910 for containing developing agent, a stirring frame 920, a powder mixing part 930, a powder outlet 931, a pump part 940, a driving gear 911, and a driving conversion part 950. The stirring frame 920 rotates to convey the developing agent in the cartridge body 910 to the powder mixing part 930. The powder outlet 931 is located at the bottom of the powder mixing part 930 and allows the developing agent supplied by the stirring frame 920 to be discharged. The pump part 940 has a variable volume accompanying reciprocating movement. The driving gear 911 receives a rotating force from the developing agent supplement device to rotate the cartridge body 910. The driving conversion part 950 converts the rotating force received by the driving gear 911 into a force to operate the pump part 940. When the powder cartridge works in the electronic imaging device, the driving gear 911 drives the cartridge body 910 to rotate relative to the powder mixing part 930 and the housing.

[0005] Among them, the pump part 940 is telescopic and the telescopic movement is sufficient to change the internal pressure of the powder cartridge 900 by changing the volume. The driving conversion part 950 drives the pump part 940 to perform axial telescopic movement, and drives the internal gas pressure of the powder cartridge 900 to reciprocate between positive and negative pressures. Under the action of the positive pressure of the pump part 940, the developing agent flows out of the powder outlet 931 and enters the developing unit. When the pump part 940 returns to its original state, the negative pressure drives the developing agent inside the powder cartridge 900, so that the internal developing agent remains fluffy and avoids clumping.

[0006] When the pump part 940 returns to its original position, the negative pressure will suck the developer back, which will cause the developer supply to be not smooth. Moreover, after the pump part 940 moves back and forth for many times, the telescopic performance of the pump part 940 will be reduced, which will cause the developer supply to be not uniform.

[0007] Furthermore, there is a working mode of the powder outlet of the powder outlet structure. As shown in Figure 1c 、 Figure 1d 、 Figure 1e , two components, a fixed powder outlet plate 110 and a movable powder outlet plate 120, are arranged at the powder outlet of the powder outlet structure. The fixed powder outlet plate 110 is fixed on the powder outlet structure, and the movable powder outlet plate 120 is movable relative to the fixed powder outlet plate 110. The movable powder outlet plate is provided with a powder outlet hole 121, and the fixed powder outlet plate is provided with a powder outlet 111. Before the powder cartridge is installed on the electronic imaging device, as shown in Figure 1d , the powder outlet hole 121 and the powder outlet 111 do not coincide, and the developer cannot flow out of the powder outlet hole 121. After the powder cartridge is installed on the electronic imaging device, as shown in Figure 1e , the hook 122 interferes with the electronic imaging device, so that the movable powder outlet plate 120 moves relative to the fixed powder outlet plate 110, the powder outlet hole 121 and the powder outlet 111 coincide, and at this time the developer can flow out. The movable powder outlet plate 120 is also connected to the fixed powder outlet plate or the powder outlet structure through a resilient member, so that when the powder cartridge is removed from the electronic imaging device, the powder outlet hole 121 and the powder outlet 111 no longer coincide and return to the state in Figure 1d , so that the developer cannot flow out. SUMMARY

[0008] The present application provides a powder outlet structure and a powder cartridge to enable the developer to enter the electronic imaging device through the powder outlet.

[0009] The first aspect of the present application provides a powder cartridge which is detachably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure arranged at one end of the cartridge body in the length direction; the powder outlet structure comprising a gear ring, a powder mixing part and a powder outlet, the gear ring being capable of obtaining a rotating driving force from the electronic imaging device and rotating, the powder mixing part being in communication with the cartridge body and the powder outlet so that the developer can enter the powder mixing part from the cartridge body; characterized in that the powder outlet structure further comprises:

[0010] a blowing fan blade and an acceleration structure;

[0011] the acceleration structure enables the rotating speed of the blowing fan blade to be greater than the rotating speed of the gear ring, so that the blowing fan blade rotates to generate wind and blow the developer in the powder mixing part to flow out of the powder outlet.

[0012] The second aspect of the present application provides a powder cartridge, which is detachably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure, which is arranged at one end of the cartridge body in the length direction; the powder outlet structure comprising a gear ring, a powder mixing part and a powder outlet, the gear ring being capable of obtaining a rotating driving force from the electronic imaging device and rotating, the powder mixing part being in communication with the cartridge body and the powder outlet so that the developer can enter the powder mixing part from the cartridge body; characterized in that the powder outlet structure further comprises:

[0013] a blowing fan blade and a planetary gear, the planetary gear powering the blowing fan blade and making the rotating speed of the blowing fan blade greater than that of the gear ring, so that the blowing fan blade rotates to generate wind and blow the developer in the powder mixing part to flow out of the powder outlet.

[0014] The third aspect of the present application provides a powder cartridge, which is detachably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure, which is arranged at one end of the cartridge body in the length direction; the powder outlet structure comprising a powder mixing part and a powder outlet, the powder mixing part being in communication with the cartridge body and the powder outlet so that the developer can enter the powder mixing part from the cartridge body; characterized in that the powder outlet structure further comprises:

[0015] an electric blowing assembly, the electric blowing assembly comprising a blowing fan blade and a motor part, the motor part providing the blowing fan blade with a rotating driving force, so that the blowing fan blade generates wind and blows the developer in the powder mixing part to flow out of the powder outlet.

[0016] Optionally, the powder outlet structure further comprises an air guide pipe, which is in communication with the powder mixing part; the blowing fan blade generates wind after being accelerated by an acceleration structure, and the wind enters the powder mixing part from the air guide pipe.

[0017] Optionally, the powder outlet structure further comprises a push rod, which is provided with a blocking surface and a through hole, and is capable of moving between a first position and a second position; when the push rod is in the first position, the blocking surface of the push rod blocks the communication between the air guide pipe and the powder mixing part; when the push rod is in the second position, the through hole communicates the air guide pipe and the powder mixing part.

[0018] Optionally, a screen and / or a one-way valve are arranged in the air guide pipe.

[0019] Optionally, the powder outlet structure further comprises a shell and an air inlet arranged on the shell, the shell being arranged on the blowing fan blade; wind enters the blowing fan blade from the air inlet.

[0020] Optionally, the air inlet is arranged on the surface of the powder outlet structure farthest from the cartridge body.

[0021] Optionally, the opening of the air inlet is oriented in the same direction as the rotation axis of the air blowing fan blade.

[0022] Optionally, the powder outlet structure further comprises a fixed powder outlet plate and a movable powder outlet plate which is movable relative to the fixed powder outlet plate, and the powder outlet is arranged on the fixed powder outlet plate, and the movable powder outlet plate is arranged at the powder outlet.

[0023] Optionally, the movable powder outlet plate is provided with a powder outlet hole, and the movable powder outlet plate is movable relative to the fixed powder outlet plate so as to make the powder outlet coincide with or not coincide with the powder outlet hole.

[0024] Optionally, the powder outlet structure is further provided with an elastic member, and when the powder cartridge is detached from the electronic imaging device, the elastic member acts on the movable powder outlet plate so as to make the powder outlet not coincide with the powder outlet hole.

[0025] Optionally, the powder outlet structure further comprises a push rod, and the push rod is movable between a first position and a second position, when the push rod is located at the first position, the air generated by the rotation of the air blowing fan blade cannot be transmitted to the powder mixing part, and when the push rod is located at the second position, the air generated by the rotation of the air blowing fan blade can be transmitted to the powder mixing part.

[0026] Optionally, when the powder cartridge is detached from the electronic imaging device, the push rod is moved from the second position to the first position.

[0027] Optionally, when the powder cartridge is installed on the electronic imaging device, the push rod is pushed by the electronic imaging device so as to move the push rod from the first position to the second position.

[0028] Optionally, a developer outlet is further arranged between the powder mixing part and the cartridge body, and the developer in the cartridge body enters the powder mixing part from the developer outlet and then flows out from the powder outlet.

[0029] Optionally, a powder outlet stirring piece is further arranged, and the powder outlet stirring piece is located above the powder outlet and is an elastic piece or a non-elastic structure.

[0030] Optionally, the planetary gear is a plurality of groups of planetary gears, the plurality of groups of planetary gears are located between the air blowing fan blade and the powder mixing part, and the plurality of groups of planetary gears provide driving force and acceleration for the air blowing fan blade.

[0031] Beneficial effects:

[0032] The powder outlet structure provided by the application has an acceleration structure, so as to accelerate the rotation speed of the powder cartridge with low rotation speed, drive the air blowing fan blade, make the air blowing fan blade rotate at high speed relative to the rotation speed of the powder cartridge, generate air and blow the developer out through the powder outlet hole. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1a An exploded view of the powder cartridge of the prior art;

[0034] Figure 1b A cross-sectional view of the powder cartridge of the prior art;

[0035] Figure 1c A structural view of the fixed and movable powder discharge plates;

[0036] Figure 1d A structural view of the movable powder discharge plate closing the fixed powder discharge plate when the powder cartridge cannot discharge powder;

[0037] Figure 1e A structural view of the fixed and movable powder discharge plates coinciding when the powder cartridge can discharge powder;

[0038] Figure 2 、 Figure 3 A perspective view of the powder discharge structure;

[0039] Figure 4 A perspective view of the powder discharge structure after removing the outer shell in Example 1;

[0040] Figure 5 A perspective view of the powder discharge structure after removing the outer shell, the powder mixing part and the outer gear ring in Example 1;

[0041] Figure 6 A structural view of the connection between the powder mixing part and the connecting part;

[0042] Figure 7 、 Figure 8 A perspective view of the electric blower assembly in Example 2;

[0043] Figure 9 A cross-sectional view of the electric blower assembly in Example 2 along the axis of rotation of the powder cartridge;

[0044] Figure 10 A perspective view of the powder mixing part and the fixed powder discharge plate in Example 2;

[0045] Figure 11 A circuit diagram of the relay scheme in Example 2;

[0046] Figures 12 to 14 A perspective view of the powder cartridge in Example 3;

[0047] Figure 15 、 Figure 16 A perspective view of the push rod in Example 3;

[0048] Figure 17 A view of the position relationship of the push rod after removing the outer shell of the powder cartridge in Example 3;

[0049] Figure 18 A cross-sectional view of the powder cartridge of Example Three taken along a plane passing through the axis of rotation of the powder cartridge body;

[0050] Figure 19 、 Figure 20 An enlarged view of the cross-section of the push rod of Example Three in different states;

[0051] Figure 21 An exploded view of the powder discharge structure of Example Four;

[0052] Figure 22 A structural view of the connecting portion and the mechanical air blowing assembly of Example Four;

[0053] Figure 23 An exploded view of the connecting portion and the mechanical air blowing assembly of Example Four;

[0054] Figure 24 A perspective view of the first connecting portion of Example Four;

[0055] Figure 25 A perspective view of the powder mixing portion and the fixed powder discharge plate of Example Four;

[0056] Figure 26 An exploded view of the stirring frame and the powder cartridge body of Example Five taken along a plane passing through the axis of rotation of the powder cartridge body;

[0057] Figure 27 A perspective view of the stirring frame of Example Five;

[0058] Figure 28 A cross-sectional view of the developer discharge structure of Example Six taken along a plane passing through the axis of rotation of the powder cartridge body;

[0059] Figure 29 An exploded view of the developer discharge structure of Example Six taken along a plane passing through the axis of rotation of the powder cartridge body;

[0060] Figure 30 A schematic view of the internal structure of the powder mixing portion of Example Six;

[0061] Figure 31 A cross-sectional view of the powder mixing portion of Example Six taken along a plane passing through the axis of rotation of the powder cartridge body;

[0062] Figure 32 A schematic view of the internal structure of another powder mixing portion of Example Six;

[0063] Figure 33 A schematic view of the screw powder feeding structure of Example Seven;

[0064] Figure 34 、Figure 35 This is a schematic diagram of the powder output from the thin film in Example 7;

[0065] Figure 36 This is a diagram showing the meshing relationship between the connecting rod, the missing tooth, and the rack in Example 7;

[0066] Figure 37 This is a schematic diagram of the powder output from the small balls in Example 7;

[0067] Figure 38 for Figure 37 A schematic diagram of the AA section. Detailed Implementation

[0068] In the prior art, powder can only be dispensed when the powder outlet 121 and the powder outlet 111 coincide. Since the sizes of the powder outlet 121 and the opening on the electro-imaging device for receiving developer are relatively small, a blowing device is needed to propel the developer through the powder outlet 121 into the electro-imaging device, or a pushing device is needed to push the developer through the powder outlet 121. Specifically, in this invention, a blower is provided, which blows air to expel the developer from inside the powder cylinder through the powder outlet 121. The specific details will be described in detail through the following embodiments.

[0069] Example 1

[0070] This embodiment provides an acceleration structure that accelerates the rotation speed of a low-speed toner cartridge, thereby driving the blower blades to rotate at high speed relative to the toner cartridge, generating airflow and blowing out the developer through the toner outlet.

[0071] In this embodiment, a powder dispensing structure and a powder cylinder are preferred. For example... Figure 2 , Figure 3 As shown, a powder outlet structure is provided at one end along the length of the powder cylinder. The powder outlet structure includes a connecting part 140 connected to the powder cylinder body, and a toothed ring 141 is provided on the connecting part 140. The toothed ring 141 can engage with an electronic imaging device to obtain rotational driving force from the electronic imaging device. The powder outlet structure also includes a housing 130, one side of which is connected to a fixed powder outlet plate 110. Preferably, in this embodiment, the housing 130 is a partially cylindrical structure, and the fixed powder outlet plate 110 is located at one end of the partially cylindrical structure of the housing 130 in a direction parallel to the rotation axis of the powder cylinder body (this direction is parallel to the length direction of the powder cylinder), so that... Figure 2 The side structure of part of the cylinder forms a closed structure. Alternatively, the combined structure can be regarded as a virtual cylinder in which the fixed powder outlet plate 110 cuts the outer shell 130, and the two ends of the fixed powder outlet plate 110 are connected to the side of the virtual cylinder.

[0072] When the toner cartridge is installed in the electro-imaging device for normal operation, the combined structure of the outer casing 130 and the fixed toner outlet plate 110 is fixed inside the electro-imaging device. The combined structure of the connecting part 140 and the toner cartridge body rotates along the rotation axis of the toner cartridge body, meaning that the combined structure of the connecting part 140 and the toner cartridge body can rotate relative to the combined structure of the outer casing 130 and the fixed toner outlet plate 110 during toner cartridge operation. The fixed toner outlet plate 110 is located in a lower position in the direction of gravity after the toner cartridge is installed in the electro-imaging device, while the outer casing 130 is located in a higher position in the direction of gravity. Therefore, the developer can automatically reach the vicinity of the toner outlet plate 110 under the action of gravity and will not accumulate inside the outer casing 130.

[0073] The outer casing 130 is also provided with an air inlet 131 to provide the required gas to the blowing device. Preferably, in this embodiment, the air inlet 131 is located on the top surface of the partial cylinder formed by the combination of the outer casing 130 and the fixed powder outlet plate 110, that is, the surface of the powder outlet structure that is furthest from the powder cylinder body.

[0074] like Figure 4 The diagram shows the structure of the powder cartridge after the outer casing 130 is removed. The powder outlet structure also includes a mechanical blower assembly 150. The mechanical blower assembly 150 includes a blower blade 151. Preferably, the blower blade 151 is a centrifugal blower blade. When the blower blade 151 rotates, air enters from its axial upper part and is blown out from its radial side. In this embodiment, air enters the inner side of the blower blade 151 from the side away from the powder cartridge body through the air inlet 131 along the rotation axis of the blower blade 151, and is then blown out after the blower blade 151 rotates. That is, the imaginary blower blade 151 is a cylinder, and air is drawn in from the side of the imaginary cylinder away from the powder cartridge body and blown out from the side of the imaginary cylinder. Air blown out from the blower blades 151 enters the air duct 152 and then into the toner mixing section 160. Within the mixing section 160, the developer is agitated and flows out through the toner outlets 111 and 121 of the fixed and movable toner outlet plates 110 and 120, entering the electro-imaging device. The mixing section 160 is connected to the fixed toner outlet plate 110. When the toner cartridge is operating inside the electro-imaging device, the mixing section 160 does not rotate. Preferably, a one-way valve is present in the middle of the air duct 152, ensuring that air can only be blown from the mechanical blower assembly 150 to the mixing section 160, preventing the developer-containing air or developer in the mixing section 160 from flowing back to the blower blades 151 and affecting the normal operation of the mechanical blower assembly 150. Alternatively, a cross-shaped silicone valve or a similar valve can be used instead of the one-way valve.

[0075] The mechanical blowing assembly 150 also contains multiple sets of planetary gears, the rotation speed of the gear ring 141 driven by the electronic imaging device is accelerated to provide power for the blowing fan blades 151. Preferably, the planetary gears contain an outer gear ring 153 connected with the powder mixing part 160. Preferably, the outer gear ring 153 is connected with the powder mixing part 160 by screwing screws into the screw holes 154. When the powder cartridge is working inside the electronic imaging device, the outer gear ring 153 does not rotate.

[0076] Figure 5 The structure diagram after further disassembling the powder mixing part 160 and the outer gear ring 153 on the basis of Figure 4 The structure diagram after further disassembling the powder mixing part 160 and the outer gear ring 153 on the basis of After the connection part 140 obtains the rotation driving force from the electronic imaging device through the gear ring 141, the powder cartridge body and the connection part 140 rotate along the rotation axis of the powder cartridge body parallel to the length direction of the powder cartridge, and the connection part 140 transmits the rotation to the first-stage planetary carrier 155a through the input shaft 144. Since the outer gear ring 153 is fixed, the first-stage sun gear (second-stage planetary carrier) 155c obtains a greater rotation speed than the input shaft 144 and the first-stage planetary carrier 155a through the acceleration of the first-stage planetary pinion 155b. The first-stage sun gear (second-stage planetary carrier) 155c has one end as the first-stage sun gear and the other end as the second-stage planetary carrier, and the second-stage sun gear (third-stage planetary carrier) 155e obtains a greater rotation speed than the first-stage sun gear (second-stage planetary carrier) 155c through the acceleration of the second-stage planetary pinion 155d. Similarly, the third-stage sun gear 155g obtains a greater rotation speed than the second-stage sun gear (third-stage planetary carrier) 155e through the acceleration of the third-stage planetary pinion 155f. The other end of the third-stage sun gear 155g is directly connected with and provides rotation driving force for the blowing fan blades 151. In the planetary gear structure, an upper baffle 156 is also contained, which is connected with the outer gear ring 153, on the one hand, to constrain the components of the planetary gears inside the outer gear ring 153 to prevent the parts from falling out, and on the other hand, to separate the blowing fan blades 151 and the planetary gears to prevent mutual interference. Through multi-stage acceleration, the blowing fan blades obtain a large enough rotation speed to generate enough wind to blow the developer from the powder cartridge into the electronic imaging device. Of course, the planetary gear accelerator in the present application also has other deformation modes, such as using a fixed sun gear, inputting with a planetary carrier, and outputting with an outer gear ring, or designing different numbers of planetary gears, but all belong to using planetary gears to accelerate the smaller rotation speed obtained from the electronic imaging device to a larger rotation speed to drive the fan blades, which should be contained in the scope of the present application.

[0077] The connecting part 140 is provided with a developer outlet 143, preferably, the developer outlet 143 is surrounded inside the mixing powder part 160, so that the developer from the developer outlet 143 enters the mixing powder part, and the air from the air guide pipe 152 enters the mixing powder part after being blown out by the air blowing fan blade 151. Due to the stirring frame inside the powder cartridge and the gravity, the developer will be blown out at the powder outlet 111 of the fixed powder outlet plate 110 into the electronic imaging device.

[0078] Figure 6 The preferred connection between the connecting part 140 and the mixing powder part 160. When the powder cartridge is working in the electronic imaging device, the mixing powder part 160 is in a fixed state relative to the electronic imaging device, and the connecting part 140 is in a rotating state, so there will be relative motion between the connecting parts of the two. As shown in Figure 5 , the connecting part 140 is provided with a groove 142, which is a circular ring and its center of circle passes through the rotating shaft of the powder cartridge body. As shown in Figure 6 , the mixing powder part 160 is provided with a buckle 161, which has a protrusion into the groove 142, as shown in Figure 4 , the mixing powder part is provided with a plurality of buckles 161 and is surrounded by the groove 142 in a ring shape. Therefore, the connecting part 140 can rotate relative to the mixing powder part 160 and will not be pulled out.

[0079] At the same time, in order to ensure the air blowing effect, a seal is provided when the above components are connected, and a rubber ring or foam is provided between the connecting part and the mixing powder part, so as to reduce the air leakage from other parts as much as possible, and the air generated by the air blowing fan blade 151 is used to a greater extent to push the developer to flow out of the powder cartridge.

[0080] The embodiment improves the lower rotating speed of the powder cartridge body to a higher rotating speed to drive the air blowing fan blade 151 by setting the planetary gear accelerator, so as to blow the air to make the developer flow out of the powder cartridge.

[0081] Embodiment two

[0082] Different from the mechanical air blowing assembly 150 in embodiment one, that is, an electric air blowing assembly 250 is introduced in this embodiment to replace the mechanical air blowing assembly 150 in embodiment one.

[0083] As shown in Figure 7 , the electric air blowing assembly 250 comprises an air blowing fan blade 251, which can be provided in the same structure as the air blowing fan blade 151 in embodiment one.

[0084] As shown in Figure 8As shown, the electric air-blowing assembly 250 comprises an air duct 252. The air duct 252, though possibly different in structure from the air duct 152 in Embodiment One, is the same in principle, i.e. to transmit the air generated by the air-blowing fan blade 251 to the powder mixing part 160. Preferably, the air duct 252 can also be provided with the one-way valve or the cross-shaped silica gel valve as described in Embodiment One.

[0085] Figure 9 The cross-sectional view of the electric air-blowing assembly along the axis of rotation of the powder cartridge is shown in the figure. The electric air-blowing assembly 250 is further provided with a motor component 253, which provides the air-blowing fan blade 251 with rotational driving force. Preferably, the motor component 253 comprises a direct-current brushless motor and a battery pack for providing power to the direct-current brushless motor. Of course, the battery pack and the motor can be separately arranged or arranged at other positions of the powder cartridge, which is also within the scope of the present application. The core of the present embodiment is to convert electric energy into mechanical energy to drive the air-blowing fan blade 251 to generate air energy and push the developer from the powder cartridge into the electronic imaging device.

[0086] As shown in Figure 8 , Figure 9 The present embodiment also discloses a connection manner between the electric air-blowing assembly 250 and the powder mixing part 160, i.e. the outer wall of the side of the electric air-blowing assembly 250 close to the powder mixing part 160 is provided with threads 254. Correspondingly, as shown in Figure 10 , the inner wall of the side of the powder mixing part 160 close to the electric air-blowing assembly 250 is provided with threads 162, which can engage with the threads 254 of the outer wall of the side of the electric air-blowing assembly 250 close to the powder mixing part 160, i.e. the electric air-blowing assembly 250 can be screwed to the powder mixing part 160 through the engagement of the threads. Of course, this is only a specific connection manner, and the connection manner in Embodiment One or other connection manners can also be used.

[0087] Preferably, in order to facilitate storage and transportation, an insulating pull strip can be arranged at one pole of the battery. When the insulating pull strip is not pulled down, the battery does not supply power to the motor. Before the user installs the powder cartridge into the electronic imaging device, the insulating pull strip is removed, and the battery can supply power to the motor.

[0088] Preferably, the motor can be further controlled. That is, the motor is powered by the battery only when the cartridge body is rotating. Specifically, a PLC control can be used, in which a sensor is used to monitor whether the cartridge is rotating, i.e., the sensor is arranged at the contact portion between the powder mixing portion 160 and the connecting portion 140; or a relay can be used, in which a contact portion is arranged on the connecting portion 140, and the contact portion can conduct the circuit to keep the relay working when the connecting portion 140 rotates one circle, and the contact portion does not conduct the circuit and the relay does not keep working to power the motor when the connecting portion 140 does not rotate. However, these implementation manners are prior art, and are described herein for the purpose of making the present application clear and complete.

[0089] The working principle of the relay scheme is described herein. As shown in Figure 11 , the DC power supply, the power supply series limiting switch, the delay circuit module and the motor are connected in series. The DC power supply powers the motor, and when the limiting switch is closed (the circuit is connected) and the delay circuit module is in the on state, the motor can obtain power from the DC power supply and rotate. Preferably, when the cartridge is installed in the electronic imaging device, the limiting switch is closed. One preferred scheme is to arrange the two ends of the limiting switch on the fixed powder outlet plate 110 and the movable powder outlet plate 120, respectively, and when the cartridge is installed in the electronic imaging device, the movable powder outlet plate 120 moves relative to the fixed powder outlet plate 110, and the final position of the movement (i.e., the position maintained during normal printing) will close the limiting switch. The delay circuit module controls whether the delay function is performed by a spring switch, so that the circuit is in the on state or the off state, and preferably, the relay and the contact portion described above are used. Of course, other schemes can also be used, but they are within the scope of the present application.

[0090] Embodiment Three

[0091] As shown in Figures 12 to 20 , this embodiment is improved based on Embodiment One, and a push rod 370 is added to isolate the planetary gear that generates gas and the powder mixing portion that contains the developer, so as to prevent the developer from entering the planetary gear and affecting the working condition and service life of the gear when the cartridge is not working. Similarly, this structure can also be used in the electrically driven cartridge structure of Embodiment Two, but in this embodiment, only the improvement of the planetary gear scheme is demonstrated.

[0092] Figures 12 to 14 is a perspective view of the cartridge. As shown in Figures 12 to 14 , one end of the push rod 370 is located on the outer surface of the housing 330. The push rod 370 can be extended and retracted along the direction parallel to the rotation axis of the cartridge body, as shown in Figure 13As shown, at this time, the powder cartridge is not installed on the electronic imaging device, and the push rod 370 is in the first position. When the powder cartridge is installed on the electronic imaging device and is working normally, the push rod 370 is pushed by the electronic imaging device to move in the direction of the powder cartridge cylinder axis (i.e. the push rod 370 is retracted relative to the housing 330), as shown in Figure 14 , which is called the second position.

[0093] Figure 15 Figure 16 The structure of the push rod 370 in this embodiment is described in detail. The abutting surface 371 is used to abut against the electronic imaging device to push the push rod 370 to move from the first position to the second position; the first constraint surface 372, the second constraint surface 376, the third constraint surface 377 and the constraint hole 373 are used to constrain the push rod 370 so that it can only move in the direction parallel to the powder cartridge cylinder axis and cannot be pulled out, preferably, the number of the constraint hole 373 is two; the blocking surface 374 is used to isolate the powder mixing part and the planetary gear structure, and the blocking surface 374 has a through hole 375.

[0094] Figure 17 The position relationship diagram of the push rod after removing the housing is shown in Figure 17 . As shown, the outer surface of the mechanical air blowing assembly 350 can abut against the first constraint surface 372 and the third constraint surface 377 to constrain the position of the push rod 370; the outer surface of the powder mixing part is provided with a support rod 363 and a fourth constraint surface 362, the support rod 363 enters the constraint hole 373, and the fourth constraint surface 362 can abut against the second constraint surface 376 to constrain the push rod 370 so that it can only move in the direction parallel to the powder cartridge cylinder axis and cannot be pulled out. The blocking surface 374 and the through hole 375 are located between the air guide pipe 352 and the powder mixing part at the end of the air guide pipe 352 close to the powder mixing part, and are used to make the blocking surface 374 block the communication between the air guide pipe 352 and the powder mixing part, or make the through hole 375 guide the communication between the air guide pipe 352 and the powder mixing part. A resilient member (not shown in the figure) is further provided between the push rod 370 and the main body of the powder outlet structure, and the resilient member makes the push rod 370 have a tendency to move away from the powder cartridge cylinder, so that when the abutting surface 371 is no longer pressed by abutting (such as after the powder cartridge is removed from the electronic imaging device), the push rod 370 can return to the first position from the second position. Due to the constraint of the above components, the push rod cannot be pulled out of the powder cartridge. Preferably, the resilient member is provided between the second constraint surface 376 and the fourth constraint surface 362, and the resilient member is a compression spring.

[0095] As shown in Figure 18 , it is a sectional view of the powder cartridge cut along the plane passing through the powder cartridge cylinder axis, and the left side of the image is the powder cartridge cylinder. Figure 19 Figure 20 is an enlarged view of the dashed box part in Figure 18 . Among them, Figure 19 ​​Corresponding to the state of the push rod 370 in the first position, Figure 20 Corresponding to the state of the push rod 370 in the second position. As shown, Figure 19 When the push rod 370 is in the first position, the air duct 352 and the mixing powder part 360 are blocked by the blocking surface 374, so that even if the planetary gear works to generate wind, it cannot enter the mixing powder part 360. Similarly, in this state, even if the powder cartridge is shaken due to transportation, taking, etc., the developer cannot enter the planetary gear. As shown, Figure 20 When the push rod 370 is in the second position, the push rod 370 moves towards the powder cartridge barrel, so that the through hole 375 and the communication part between the air duct 352 and the mixing powder part 360 coincide, so that the air flow generated by the planetary gear can smoothly enter the mixing powder part 360.

[0096] Preferably, a sealing member is arranged on the side of the mixing powder part 360 close to the push rod 370 and the side of the air duct 352 close to the push rod 370, i.e. a first sealing member 359 in contact with the push rod 370 and a second sealing member 364 in contact with the push rod 370. By arranging the sealing member, powder leakage during transportation can be prevented from contaminating other components in the powder cartridge and air leakage can be prevented from affecting work efficiency. Preferably, the sealing member is bubble cotton, sponge, rubber pad, etc.

[0097] Although it is not easy to enter powder during the operation of the powder cartridge due to air flow and position, in order to further prevent it, a screen is preferably arranged in the air duct 352. In order to facilitate production, the screen is preferably arranged on the side of the air duct 352 in contact with the push rod 370.

[0098] Example Four

[0099] This embodiment is an improvement on the above-mentioned embodiments, in order to prevent the developer from accumulating at the powder outlet and being unable to enter the electronic imaging device, a powder outlet stirring piece is introduced in this embodiment to solve this problem. The scheme described in this embodiment is a direct implementation method of the planetary gear structure scheme, and of course it can also be used in the motor scheme through simple transformation. The parts in this embodiment are the same as those in Embodiment One unless otherwise stated.

[0100] Figure 21 It is pointed out that this view is only for the convenience of introducing the internal structure, and during assembly, it is not necessarily according to the view shown. The powder outlet structure in this embodiment includes a fixed powder outlet plate 410, a movable powder outlet plate 420, an outer shell 430, a connecting part 440, a mechanical blowing assembly 450, and a mixing powder part 460, which is the same as in Embodiment One.

[0101] Figure 22This is a structural view of the connecting part and the mechanical blower assembly in the powder dispensing structure. Unlike Embodiment 1, the shape of the developer outlet 443 in this embodiment has changed somewhat, but the overall function remains the same. Importantly, in this embodiment, a powder dispensing stirring plate 445 extends from the developer outlet 443. Preferably, there are two powder dispensing stirring plates 445, each comprising a fixed end and a free end. The fixed end is fixed to the connecting part 440, and the free end, after assembly, connects to the powder dispensing port 441 on the fixed powder dispensing plate 410 (see...). Figure 25 At least in one position, a portion of the projection on the plane of the toner cartridge's rotating axis coincides. The toner outlet stirring plate 445 is provided to assist toner discharge when the toner outlet 441 is not blocked, and to alleviate the blockage by lifting the developer at the blocked outlet when the toner outlet 441 is blocked.

[0102] Figure 23 This is an exploded view of the connecting parts and mechanical blower assembly in the powder discharge structure. Figure 23 As shown, in order to reduce the difficulty of production, the connecting part 440 in this application is divided into two parts: a first connecting part that contacts the powder cylinder body and a second connecting part that contacts the mechanical blower assembly 450. Figure 24 This is a perspective view of the first connecting part. Similar to the input shaft 144 in Embodiment 1, the input shaft 444 in this embodiment is located on the first connecting part. Preferably, the surface of the input shaft 444 is provided with teeth for meshing with planetary gears. The second connecting part includes a gear ring 441 for receiving power from the electronic imaging device. The first connecting part also includes a base 446 for connecting with the second connecting part. Preferably, the base 446 can be connected to the inner wall 447 of the second connecting part by a series of common mechanical methods such as bonding, welding, threading, and snap-fitting, so that the first connecting part and the second connecting part form an integral unit. When the powder cartridge is installed inside the electronic imaging device for operation, the fixed powder outlet plate 410, the movable powder outlet plate 420, the outer shell 430, the mechanical blower assembly 450, and the powder mixing part 460 are all fixed relative to the electronic imaging device. Only the connecting part 440 and the powder cartridge body connected to it rotate relative to the electronic imaging device around their own rotation axis.

[0103] To further improve the smoothness of powder dispensing, the following improvements were made: the powder dispensing agitator 445 is preferably an elastic piece, and a boss is provided inside the powder mixing section 460 to allow the elastic powder dispensing agitator 445 to undergo elastic deformation. Preferably, there is a pair of powder dispensing agitator 445.

[0104] Figure 25 A perspective view of the powder mixing section and the fixed powder dispensing plate. (e.g.) Figure 25As shown, the connection between the mixing section 460 and the fixed powder outlet plate 410 is the powder outlet 411. A protrusion 462 is arranged at a position upstream of the powder outlet 411 in the rotation direction of the powder outlet stirring blade 445. The protrusion 462 is arranged on the inner wall of the mixing section 460 and protrudes along the inner wall. The protrusion 462 and the free end of the powder outlet stirring blade 445 have at least a part of their projections on the plane of the rotation axis of the powder cartridge coinciding at one position. When the connecting section 440 rotates the powder outlet stirring blade 445 relative to the mixing section 460, the protrusion 462 interferes with the powder outlet stirring blade 445, causing the powder outlet stirring blade 445 to elastically deform and accumulate elastic potential energy; then the powder outlet stirring blade 445 continues to move and leaves the protrusion 462, releasing the elastic potential energy caused by the previous elastic deformation, thereby acting on the position of the powder outlet 411, achieving the purpose of better helping the powder outlet and / or relieving the blockage.

[0105] Of course, in the case where the requirement for the amount of powder is not too strict, the planetary gear structure can also be cancelled, and only the elastic powder outlet stirring blade is retained to save costs.

[0106] Embodiment Five

[0107] This embodiment is a further improvement on the powder outlet stirring blade structure in Embodiment Four. More specifically, it is a further simplification of the parts after the planetary gear structure is cancelled, thereby further saving costs.

[0108] In the prior art, a stirring frame is arranged near the powder outlet of the powder cartridge to help the developer inside the powder cartridge flow out. The stirring frame is fixed with the powder cartridge body, and when the powder cartridge is installed in the electronic imaging device, the stirring frame rotates together with the powder cartridge body. With the rotation of the powder cartridge body, the pattern of the powder cartridge body and the spiral structure on the surface of the stirring frame make the developer flow out from the powder outlet of the powder cartridge body along the stirring frame.

[0109] This embodiment, for the purpose of saving costs and simplifying parts, no longer arranges a connecting section as in Embodiment Four, but directly arranges the powder outlet stirring blade 545 on the stirring frame 570. Figure 26 An exploded view of the stirring frame and the powder cartridge body after being cut along the plane of the rotation axis of the powder cartridge body, Figure 27 A perspective view of the stirring frame. This embodiment still uses the same mixing section 460 and protrusion 462 as Embodiment Four, so that the combination of the stirring frame 570 and the powder outlet stirring blade 545 achieves the technical effect of the interference between the connecting section 440 and the protrusion 462 in Embodiment Four. Preferably, the stirring frame 570 is connected to the powder cartridge body by a buckle 571.

[0110] Embodiment Six

[0111] This embodiment is a further improvement of embodiment five. The structure of this embodiment is easier to discharge developer than the structure of embodiment five while the planetary gear structure is not used. This embodiment mainly improves the structure of the mixing section.

[0112] Figure 28 A sectional view of the developer discharging structure in this embodiment is obtained by cutting along a plane passing through the rotation axis of the cartridge body, Figure 29 An exploded view of the developer discharging structure in this embodiment is obtained by cutting along a plane passing through the rotation axis of the cartridge body. The structure of the housing 630, the fixed outlet plate 610, the movable outlet plate 620 in this embodiment is the same as that in embodiment one, and the structure of the stirring frame 670 and the outlet stirring blade 645 in this embodiment is the same as that in embodiment five. This embodiment mainly improves the structure of the mixing section 660.

[0113] Figure 30 A schematic view of the structure of the mixing section from the side of the cartridge body, Figure 31 A sectional view of the mixing section obtained by cutting along a plane passing through the rotation axis of the cartridge body. The mixing section 660 comprises a boss 662 similar to the boss 662 in the mixing section 460 in embodiment four, which is used to interfere with the outlet stirring blade 645, and a buckle 661 similar to the buckle 661 in the mixing section 160 in embodiment one, which is used to fix the mixing section 660 so that the mixing section 660 and the cartridge body can rotate relative to each other without being separated from each other. The mixing section 660 is also provided with a powder guiding slope 663, which forms an acute angle with the rotation axis of the cartridge body. Since the acute angle is equal to the acute angle a between the powder guiding slope 663 and the fixed outlet plate 610, the acute angle a is also acute, which is beneficial to the discharge of the developer. Preferably, the angle of the acute angle is 30 to 60 degrees. The powder guiding slope is below the direction of gravity, and the outlet 611 of the fixed outlet plate 610 is arranged below the powder guiding slope.

[0114] Preferably, the mixing section 660 is also provided with an auxiliary surface 664, which can assist the flow of the developer to the powder guiding slope 663.

[0115] When the cartridge is working in the electronic imaging device, only the stirring frame 670 and the cartridge body rotate, and the housing 630, the fixed outlet plate 610, the movable outlet plate 620 and the mixing section 660 are relatively fixed with the electronic imaging device. The stirring frame 670 drives the developer stored in the cartridge body into the mixing section 660 and makes the developer slide or act on the powder guiding slope 663. Due to the action of gravity, the developer slides along the powder guiding slope 663 to the direction below the direction of gravity and exits from the outlet 611. At the same time, the developer on the powder guiding slope 663 near the direction above the direction of gravity also helps the developer near the direction below the direction of gravity, so the powder guiding slope 663 can help the discharge of the developer compared with the structure in embodiment four.

[0116] Further, for the powder cartridge with low requirement of powder output, the embodiment has a further cost saving solution, as shown in Figure 32 Figure 32 The structure of another mixing part is shown in the view of the side of the powder cartridge. In the improvement, the boss 662 is removed, and a non-elastic stirring structure is used instead of the powder outlet stirring blade 645, i.e. only the powder guide slope 663 is used to make the developer flow out under gravity. In this way, the price of the elastic blade is further saved, and the life of the powder cartridge is increased, so that the performance of the powder cartridge is not affected by the fatigue of the elastic blade.

[0117] Embodiment Seven

[0118] The embodiment mainly discloses some structures near the powder outlet for powder output. When the air blowing structure and the powder outlet stirring blade structure of the previous embodiments are not provided, the structures in the embodiment can be preferably used.

[0119] Figure 33 The structure of the screw powder conveying structure is shown in the view. As shown in Figure 33 The powder cartridge 20 includes a powder cartridge body 21 for containing the developer, one end of the powder cartridge body 21 is closed, the other end is open, the other end of the powder cartridge body 21 is provided with a shell 27, the shell 27 closes the opening of the other end of the powder cartridge body 21, and the other end of the powder cartridge body 21 is provided with a driving gear 22 (i.e. the end close to the shell 27), the driving gear 22 is used to receive the driving force of the electronic imaging device, so as to drive the powder cartridge body 21 to rotate.

[0120] The shell 27 has a mixing part 28 inside, the mixing part 28 is used to receive the developer conveyed by the powder cartridge body 21, the mixing part 28 is provided with a screw 25 inside, one end of the screw 25 is provided with a transmission gear 24, the other end of the screw 25 is rotatably installed to the mixing part 28, the bottom of the mixing part 28 is provided with a powder outlet 29, and the powder outlet 29 is provided with a sealing ring 26 around. The other end of the powder cartridge body 21 is provided with an internal gear 23, the internal gear 23 is fixed to the other end of the powder cartridge body 21, the transmission gear 24 is engaged with the internal gear 23, so as to transmit the driving force received by the driving gear 22 to the screw 25, and then drive the screw 25 to rotate and convey the developer to the powder outlet 29.

[0121] ​After the toner cartridge 20 is installed in the electro-imaging device, the toner outlet 29 is opposite to the developer receiving section 10 of the electro-imaging device, which receives the developer delivered by the toner cartridge 20. The drive gear 22 receives the driving force of the electro-imaging device, causing the toner cartridge body 21 to rotate. The rotation of the toner cartridge body 21 delivers the developer inside to the mixing section 28 of the outer casing 27. The transmission gear 24 of the screw 25 meshes with the internal gear 23 of the toner cartridge body, thereby transmitting the driving force to the screw 25. The rotation of the screw 25 delivers the developer accumulated in the mixing section 28 to the toner outlet 29, completing the developer delivery. Preferably, the internal gear 23 and the drive gear 22 can be integrally formed.

[0122] The screw 25 installed in the powder mixing section 28 effectively solves the problem of developer accumulation in the powder mixing section 29, enabling the developer to be effectively transferred to the developer receiving section 10 in the electronic imaging device, greatly improving the developer transfer efficiency and stability.

[0123] Based on the above structure, this embodiment also incorporates other structures to help the powder outlet holes discharge powder. Of course, the above structures can also be set independently.

[0124] Figure 34 , Figure 35 This is a schematic diagram illustrating powder output from an elastic film. (Example) Figures 34-35 As shown, the powder cylinder 30 includes a powder cylinder body 31 containing developer. One end of the powder cylinder body 31 is closed and the other end is open. A housing 57 is installed at the other end of the powder cylinder body 31, which closes the other end opening of the powder cylinder body 31. A drive gear 22 is provided at the other end of the powder cylinder body 31. The drive gear 22 is used to receive the driving force of the electronic imaging device, thereby driving the powder cylinder body 31 to rotate.

[0125] The interior of the outer casing 57 contains a powder mixing section for receiving the developer conveyed by the powder cylinder 31. A rack 36 is installed inside the powder mixing section, with an elastic film 37 at one end. The rack 36 can move along a guide rail 38 within the powder mixing section in the moving direction B and in the opposite direction. The rack 36 meshes with a toothed tooth 35. A transmission gear 33 is connected to the toothed tooth 35 via a connecting rod 34, which transmits driving force to the toothed tooth 35. The connecting rod 34 is rotatably mounted inside the powder mixing section. A powder outlet is located at the bottom of the powder mixing section, and a sealing ring 26 is provided around the outlet. The connecting rod 34 is rotatably fixed inside the outer casing 57 via a support 39.

[0126] Figure 36is the meshing relationship diagram of connecting rod, missing tooth and rack. The other end of the powder cylinder 31 is fixedly provided with an internal gear 32, and a transmission gear 33 is engaged with the internal gear 32, so as to transmit the driving force received by the driving gear 22 to the rack 36, and then drive the elastic film 37 to move along the moving direction B and its reverse direction, so as to deliver the developer to the powder outlet. The missing tooth 35 is formed by removing part of the teeth of a complete cylindrical straight gear, as shown in Figure 36

[0127] After the powder cylinder 30 is installed to the electronic imaging device, the electronic imaging device drives the driving gear 22, the driving gear 22 drives the powder cylinder 31 to rotate, the internal gear 32 rotates with the powder cylinder 31, and then the internal gear 32 transmits the driving force to the transmission gear 33, and the transmission gear 33 drives the missing tooth 35 through the connecting rod 34. First stage: when the missing tooth 35 rotates to the position where the toothed part is engaged with the rack 36, the rack 36 drives the elastic film 37 to rise from the first position to the second position, in this process, the volume of the semi-closed space formed by the elastic film 37 and the surrounding shell 57 is increased, and since the powder cylinder 31 rotates to deliver powder, the developer will gradually fill into the gradually expanded elastic film space. Second stage: when the missing tooth 35 rotates to the toothless part, the rack 36 is separated from the missing tooth 35, and the elastic film 37 rapidly rebounds since it is no longer pulled by external force, and the semi-closed space formed by the elastic film 37 and the surrounding shell 57 will instantaneously shrink to form a high-pressure area, that is, the elastic film 37 returns from the second position to the first position; the developer in this area is forced to be sprayed out of the powder outlet due to the high pressure, so as to fall into the developer receiving part 10 of the electronic imaging device to realize powder supply. When the missing tooth 35 rotates to the position where the rack 36 is engaged again, the powder supply action starts the next cycle.

[0128] The embodiment also provides another structure for facilitating powder delivery of the powder outlet.

[0129] Figure 37 is a schematic view of ball powder delivery, Figure 38 is a schematic view of ball powder delivery A-A section, Figure 37 and Figure 38 ​As shown, the powder cartridge 40 in the structure includes a powder cartridge cylinder 41 containing developer, one end of the powder cartridge cylinder 41 is closed, the other end is open, the other end of the powder cartridge cylinder 41 is provided with a housing 49, the housing 49 closes the other end opening of the powder cartridge cylinder 41, the other end of the powder cartridge cylinder 41 is provided with a drive gear 22, the drive gear 22 is used to receive the driving force of the electronic imaging device, so as to drive the powder cartridge cylinder 41 to rotate. The closed end of the powder cartridge cylinder 41 separates a space S, the space S has a smooth lead ball 46, the lead ball 46 is connected with the telescopic mechanism of the powder cartridge by a thin rope 45, the gravity of the lead ball 46 is much greater than the elastic force of the light spring 47 of the telescopic mechanism. The thin rope 45 passes through a small hole E to reach the space S, the small hole E deviates from the rotation center of the powder cartridge cylinder 41, on the diameter passing through the small hole E, one end of the diameter close to the small hole E is C point, and the other end far away from the small hole E is D point.

[0130] The telescopic mechanism includes a pin 48, a light spring 47, a pulley 44 and a thin rope 45, the pulley 44 is fixed in the powder mixing part of the housing 49, one end of the light spring 47 is connected with the thin rope 45, the other end is connected with the pin 48, the pin 48 is located above the powder outlet.

[0131] The drive gear 22 drives the powder cartridge 40 to rotate, due to the action of gravity, the lead ball 46 will always fall to the bottom of the space S. With the rotation of the powder cartridge cylinder 41, when the D point of the powder cartridge cylinder rotates to the bottom of the powder cartridge cylinder 41, at this time the thin rope 45 is straight, the gravity of the lead ball 46 makes the light spring 47 contract through the thin rope 45, and the position of the thin pin 48 rises to the top end.

[0132] However, with the continuous rotation of the powder cartridge cylinder 41, when the D point of the powder cartridge cylinder starts to move away from the lowest point, the light spring 47 gradually recovers and drives the pin 48 to push the developer downward, until the C point of the powder cartridge cylinder is located vertically at the lowest point, the pin 48 reaches the bottom end, and the developer is completely pushed into the developer receiving part 10 of the electronic imaging device. The powder cartridge continues to rotate, the lead ball 46 pulls the pin 48 up again through the thin rope 45, until the D point of the powder cartridge cylinder is located vertically at the lowest point, and the pin 48 is located at the top end. The powder cartridge 41 continues to rotate and starts the next cycle.

[0133] Preferably, when the operator takes out the powder cartridge, in order to avoid the interference phenomenon between the pin 48 and the powder inlet of the developer receiving portion 10, the operator can be particularly prompted to rotate the powder cartridge cylinder 41 to make the D point of the powder cartridge cylinder the lowest point, and then take out the powder cartridge 40. In this way, the pin 48 will go up to the top end, and the pin 48 will not interfere with the powder inlet of the developer receiving portion 10, and the powder outlet of the powder cartridge can be ensured to be normally closed without being affected by the pin. Of course, the thickness of the shell near the powder outlet can also be reasonably set, so that the pin is in a suitable position, thereby avoiding interference between the pin and the opening and closing of the powder outlet, so that the powder cartridge does not need to be particularly rotated to the lowest point.

[0134] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A powder cartridge removably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure provided at one end of the cartridge body in the length direction of the cartridge body; the powder outlet structure comprising a gear ring, a powder mixing portion and a powder outlet, the gear ring being capable of obtaining a rotational driving force from the electronic imaging device and rotating, the powder mixing portion being in communication with the cartridge body and the powder outlet so that the developer can pass from the cartridge body into the powder mixing portion; the powder outlet structure further comprising a blowing fan blade and an acceleration structure; the acceleration structure accelerating the rotational speed of the blowing fan blade to be greater than the rotational speed of the gear ring, so that the blowing fan blade rotates to generate wind and blow the developer in the powder mixing portion to flow out of the powder outlet; a gas guide tube in communication with the powder mixing portion; the blowing fan blade being accelerated by the acceleration structure to generate wind, the wind entering the powder mixing portion from the gas guide tube; characterized in that the powder outlet structure further comprises a push rod, the push rod being provided with a blocking surface and a through hole, the push rod being capable of moving between a first position and a second position; when the push rod is in the first position, the blocking surface of the push rod blocks the communication between the gas guide tube and the powder mixing portion; when the push rod is in the second position, the through hole communicates the gas guide tube and the powder mixing portion.

2. A powder cartridge removably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure provided at one end of the cartridge body in the length direction of the cartridge body; the powder outlet structure comprising a gear ring, a powder mixing portion and a powder outlet, the gear ring being capable of obtaining a rotational driving force from the electronic imaging device and rotating, the powder mixing portion being in communication with the cartridge body and the powder outlet so that the developer can pass from the cartridge body into the powder mixing portion; the powder outlet structure further comprising a blowing fan blade and a planetary gear, the planetary gear providing power to the blowing fan blade and accelerating the rotational speed of the blowing fan blade to be greater than the rotational speed of the gear ring, so that the blowing fan blade rotates to generate wind and blow the developer in the powder mixing portion to flow out of the powder outlet; a gas guide tube in communication with the powder mixing portion; the blowing fan blade being accelerated by the planetary gear to generate wind, the wind entering the powder mixing portion from the gas guide tube; characterized in that the powder outlet structure further comprises a push rod, the push rod being provided with a blocking surface and a through hole, the push rod being capable of moving between a first position and a second position; when the push rod is in the first position, the blocking surface of the push rod blocks the communication between the gas guide tube and the powder mixing portion; when the push rod is in the second position, the through hole communicates the gas guide tube and the powder mixing portion.

3. A powder cartridge removably installed in an electronic imaging device, the powder cartridge comprising: a cartridge body containing a developer; a powder outlet structure provided at one end of the cartridge body in the length direction of the cartridge body; the powder outlet structure comprising a powder mixing portion and a powder outlet, the powder mixing portion being in communication with the cartridge body and the powder outlet so that the developer can pass from the cartridge body into the powder mixing portion; The powder outlet structure further comprises an electric blowing assembly, which comprises a blowing fan blade and a motor component, the motor component providing the blowing fan blade with rotational driving force, so that the blowing fan blade generates wind to blow the developer in the powder mixing part to flow out of the powder outlet; A gas guide pipe is in communication with the powder mixing part; the blowing fan blade generates wind after being accelerated by the electric blowing assembly, and the wind enters the powder mixing part from the gas guide pipe; The powder outlet structure further comprises a push rod, the push rod is provided with a blocking surface and a through hole, and the push rod is movable between a first position and a second position; when the push rod is located at the first position, the blocking surface of the push rod blocks the communication between the gas guide pipe and the powder mixing part; when the push rod is located at the second position, the through hole communicates the gas guide pipe and the powder mixing part.

4. The cartridge of claim 1 or 2 or 3, wherein A screen and / or a one-way valve are arranged in the gas guide pipe.

5. The cartridge of claim 1 or 2 or 3, wherein The powder outlet structure further comprises a shell and an air inlet arranged on the shell, the shell is arranged on the blowing fan blade; wind enters the blowing fan blade from the air inlet.

6. The powder cartridge of claim 5, wherein, The air inlet is located on a surface of the powder outlet structure farthest from the cylinder body.

7. The powder cartridge of claim 6, wherein, An opening of the air inlet is directed in a direction consistent with a rotational axis direction of the blowing fan blade.

8. The cartridge of claim 1 or 2 or 3, wherein, The powder outlet structure further comprises a fixed powder outlet plate and a movable powder outlet plate movable relative to the fixed powder outlet plate, the powder outlet is arranged on the fixed powder outlet plate, and the movable powder outlet plate is arranged at the powder outlet.

9. The powder cartridge of claim 8, wherein, The movable powder outlet plate is provided with a powder outlet hole; the movable powder outlet plate is movable relative to the fixed powder outlet plate to make the powder outlet and the powder outlet hole coincide or not coincide.

10. The powder cartridge of claim 9, wherein, An elastic member is further arranged; when the powder cartridge is detached from the electronic imaging device, the elastic member acts on the movable powder outlet plate to make the powder outlet and the powder outlet hole not coincide.

11. The cartridge of claim 1 or 2 or 3, wherein, The powder outlet structure further comprises a push rod, the push rod is movable between a first position and a second position; when the push rod is located at the first position, wind generated by rotation of the blowing fan blade cannot be transmitted to the powder mixing part; when the push rod is located at the second position, wind generated by rotation of the blowing fan blade can be transmitted to the powder mixing part.

12. The powder cartridge of claim 11, wherein, When the powder cartridge is detached from the electronic imaging device, the push rod moves from the second position to the first position.

13. The powder cartridge of claim 12, wherein, When the powder cartridge is installed on the electronic imaging device, the push rod is pushed by the electronic imaging device to move the push rod from the first position to the second position.

14. The cartridge of claim 1 or 2 or 3, wherein, A developer outlet is further arranged between the powder mixing part and the cylinder body; the developer in the cylinder body enters the powder mixing part from the developer outlet and then flows out of the powder outlet.

15. The powder cartridge of claim 14, wherein, A powder outlet stirring piece is further arranged, the powder outlet stirring piece is located above the powder outlet, and the powder outlet stirring piece is an elastic piece or a non-elastic structure.

16. The cartridge of claim 2 or 6 or 7 or 9 or 10 or 12 or 13 or 15, wherein, The planetary gear is a plurality of groups of planetary gears; the plurality of groups of planetary gears are located between the blowing fan blade and the powder mixing part; the plurality of groups of planetary gears provide the blowing fan blade with driving force and acceleration.

Images