Toner cartridge detection device and toner cartridge

Abstract

The present invention discloses and provides a toner cartridge detection device and a toner cartridge with low precision requirements, which are conducive to reducing the production of defective products. The toner cartridge includes a toner cartridge body, a stirring frame arranged in the toner cartridge body, a developing roller and a powder feeding roller, and a toner cartridge detection device. The toner cartridge detection device includes a toner cartridge body, an end cover, a spring, a torsion spring, and a reset gear. The spring is arranged between the reset gear and the toner cartridge body. The reset gear is provided with an arc-shaped protrusion and a limiting protrusion on the end face facing the end cover. The top of the arc-shaped protrusion passes through the outer side of the end cover, and the limiting protrusion contacts the inner side of the end cover. The torsion spring is fixed on the outer side of the end cover, one leg of which contacts the end cover, and the other leg contacts the side of the arc-shaped protrusion. The present invention can be widely used in the field of laser printing toner cartridges.

Description

Technical Field

[0001] The invention relates to a carbon powder box detection device and a carbon powder box. Background Art

[0002] Generally, when using a laser printer, it is necessary to calculate the number of pages printed by the consumables, because only when the user knows the remaining life of the consumables can he replace the new drum assembly or toner cartridge in time to avoid affecting the user's normal use.

[0003] The structure and working principle of the toner cartridge detection device on BROTN660 / 630 / 2325 / 2312 / 2375 / 2335, BROTN750 / 720 / 780 / 3330 / 3320 / 3335 / 3310 / 3380 / 3350 / 3325 / 3340 / 3360 / 3390 / 3370 / 3395 and other series products are basically the same. The printer drive gear rotates, and the gear of the transmission mechanism on the toner cartridge drives the reset gear to rotate in an arc. The limit block of the detection device corresponds to the low-high-low position on the toner bin body. The shape of the slope, the reset gear rotation track process starts from the low position set to 0 degrees and gradually moves up the slope by about 50-60 degrees to the high position, and then turns to about 65 degrees at the high position. The arc-shaped protrusion on the reset gear begins to contact the machine's counter and gives the machine a signal. The machine recognizes the toner cartridge and defaults to a number of printed pages. At this time, the gear transmission mechanism continues to drive the reset gear to rotate to about 190-200 degrees. Under the rebound force of the spring set at the upper end of the reset gear, it moves to the low position evenly down the slope. The final angle of the reset gear is about 270 degrees. In this way, a reset process is completed, and the printer can be used normally.

[0004] In order to ensure that the machine can recognize and count normally, the reset gear transmission structure has a rotation trajectory that moves from low to high and then from high to low. This places high demands on production and installation accuracy. If the accuracy does not meet the requirements, the machine may not be able to detect the toner cartridge, resulting in a high defective rate and high cost pressure. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a toner cartridge detection device and a toner cartridge which have low precision requirements and are conducive to reducing the production of defective products.

[0006] The technical solution adopted by a toner cartridge detection device of the present invention is: the toner cartridge detection device includes a toner cartridge body, an end cover and a reset gear, the reset gear is arranged on the toner cartridge body, the end cover is located on one side of the toner cartridge body and covers the reset gear, the toner cartridge detection device also includes a spring and a torsion spring, the spring is arranged between the reset gear and the toner cartridge body, an arc-shaped protrusion and a limiting protrusion are arranged on the end face of the reset gear facing the end cover, the top of the arc-shaped protrusion passes through the outer side face of the end cover, the limiting protrusion contacts the inner side face of the end cover, and the reset gear A positioning column is also provided on the end face of the gear facing the end cover, and the limiting protrusion is connected to the positioning column from the edge of the reset gear in the length direction. The torsion spring is fixed to the outer surface of the end cover, one foot of which is in contact with the end cover, and the other foot is in contact with the side of the arc-shaped protrusion. The torsion spring is locked on the end cover by a fixing pin, fixed by the fixing pin and adapted to the arc-shaped protrusion of the reset gear. The torsion spring can block the arc-shaped protrusion before external force acts, and make the arc-shaped protrusion pass over the torsion spring under the action of external force. The reset gear is arranged on the guide column of the toner cartridge body.

[0007] The height of the limiting protrusion is 3-6 mm.

[0008] The top surface of the arc-shaped protrusion is 3 to 6 mm higher than the top surface of the end cover.

[0009] The top of the arc-shaped protrusion is provided with a chamfer, and the chamfer is 15 to 60 degrees.

[0010] The technical solution adopted by a toner cartridge of the present invention is: the toner cartridge includes the toner cartridge detection device, the toner cartridge body, a stirring frame, a developing roller and a powder feeding roller arranged in the toner cartridge body, the stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body and are rotated by a gear transmission mechanism, the gear transmission mechanism includes a driving gear, a developing roller gear and a transmission gear meshed with the driving gear, a stirring frame gear meshed with the transmission gear and a reset gear meshed with the stirring frame gear, the driving gear rotation torque is transmitted to the transmission gear, and the rotation of the stirring frame gear and the reset gear is driven by the transmission gear to match the sensor of the printer, so that the printer can recognize it as a brand new toner cartridge.

[0011] The beneficial effects of the present invention are as follows: since the present invention includes a toner cartridge body, an end cover and a reset gear, the reset gear is arranged on the toner cartridge body, the end cover is located on one side of the toner cartridge body and covers the reset gear, the toner cartridge detection device also includes a spring and a torsion spring, the spring is arranged between the reset gear and the toner cartridge body, an arc-shaped protrusion and a limiting protrusion are arranged on the end face of the reset gear facing the end cover, the top of the arc-shaped protrusion passes through the outer side face of the end cover, the limiting protrusion contacts the inner side face of the end cover, and the torsion spring is fixed on the outer side face of the end cover, one foot of which contacts the end cover, and the other foot contacts the arc-shaped protrusion The side of the block is in contact. Compared with the previous detection device, the present invention adjusts the position of the spring and sets it from the outside of the reset gear to the inside of the reset gear. The spring is used to support the reset gear to bounce up, and the end cover presses the reset gear. There is no need to set an arc-shaped matching surface. The same angle transmission is adopted. Compared with the concave and convex transmission of the original structure, the transmission accuracy requirement is low, which is conducive to reducing the production of defective products. The torsion spring can limit the displacement of the reset gear during installation and cause the problem of machine recognition, which well guarantees the manufacturing quality of the product. Therefore, the present invention has low accuracy requirements, which is conducive to reducing the production of defective products, reducing manufacturing costs, and effectively improving the market competitiveness of the company's products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is an exploded view of the toner cartridge of the present invention;

[0013] Figure 2 is an exploded view of the toner cartridge detection device of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the present invention before resetting;

[0015] Figure 4 It is a schematic diagram of the structure after the present invention is reset. DETAILED DESCRIPTION

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the toner cartridge of the present invention mainly includes a toner cartridge body 1, a stirring frame, a developing roller and a powder feeding roller arranged in the toner cartridge body 1 (other charging rollers, powder discharging scrapers, etc. are prior art and are not described here), a gear transmission mechanism arranged on the side wall of the toner cartridge body 1, and an end cover 2 arranged on the side of the toner cartridge body 1 and matched with the gear transmission mechanism. The stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body 1 and are driven to rotate by the gear transmission mechanism. The gear transmission mechanism includes a driving gear 11, a developing roller gear 12 and a transmission gear 13 meshing with the driving gear 11, and a powder feeding roller gear. 15. A stirring frame gear 14 meshed with the transmission gear 13 and a reset gear 3 meshed with the stirring frame gear 14, the stirring frame gear 14 is sleeved on the extension shaft of the stirring frame, the powder feeding roller gear 15 is sleeved on the extension shaft of the powder feeding roller, and the developing roller gear 12 is sleeved on the extension shaft of the developing roller. The driving gear 11 is respectively meshed with the transmission gear 13, the powder feeding roller gear 15, and the developing roller gear 12, and the rotational torque of the driving gear 11 is transmitted to the transmission gear 13, and the rotation of the stirring frame gear and the reset gear 3 is driven by the transmission gear 13 to match the sensor of the printer, so that the printer can recognize it as a new toner cartridge.

[0017] The toner cartridge detection device comprises a toner cartridge body 1, an end cover 2, a reset gear 3, a spring 4 and a torsion spring 5, wherein the reset gear 3 is arranged on the toner cartridge body 1, the end cover 2 is located on one side of the toner cartridge body 1 and covers the reset gear 3, the spring 4 is arranged between the reset gear 3 and the toner cartridge body 1, an arc-shaped protrusion 31 and a limiting protrusion 32 are arranged on the end surface of the reset gear 3 facing the end cover 2, the top of the arc-shaped protrusion 31 passes through the outer side surface of the end cover 2, a fan-shaped hole 21 is arranged on the end cover 2, the arc-shaped protrusion 31 passes through the fan-shaped hole 21, and the top surface of the arc-shaped protrusion 31 is 3 to 6 meters higher than the top surface of the end cover 2 mm, the top surface of the arc-shaped protrusion 31 is chamfered toward the center point of the arc and the diagonal angle, and the chamfer of the arc-shaped protrusion 31 is 15 to 60 degrees. The chamfer of the arc-shaped protrusion 31 is intended to make a good tilt transition with the machine contour when the toner cartridge is installed, and the spring 4 is used to make the reset gear 3 shrink inward under the external force when the toner cartridge is installed, and the reset gear 3 is pushed outward under the action of the spring rebound force after the toner cartridge is installed in the machine, so that the arc-shaped protrusion 31 extends to the specified position, confirming that the arc-shaped protrusion 31 can smoothly contact with the machine sensor, and the limiting protrusion 32 contacts with the inner side of the end cover 2. The height of the limiting protrusion 22 is 3 to 6 mm. Only at this height can the arc-shaped protrusion 31 be exposed. The limiting protrusion 32 is in the shape of a strip close to the arc-shaped protrusion 31. The strip shape is to reduce friction. The torsion spring 5 is fixed The reset gear 3 is fixed on the outer surface of the end cover 2, one of the legs is in contact with the end cover 2, and the other leg is in contact with the side of the arc-shaped protrusion 31. A positioning column 33 is also provided on the end surface of the reset gear 3 facing the end cover 2, and the limiting protrusion 32 is connected to the positioning column 33 from the edge of the reset gear 3 in the length direction. Through such a design, compared with the original structure, the function of the spring 4 in the present invention is changed from pressing the reset gear 3 to supporting the reset gear 3, so that the reset gear 3 is adapted to the end cover 2, eliminating the inconvenience of providing matching inclined surfaces on the toner cartridge body 1 and the reset gear 3, and reducing the assembly requirements. The lower end of the reset gear 3 is not connected to other mechanisms except for meshing with the stirring frame gear 14, and maintains a contact relationship with the end cover 2 through the limiting protrusion 32.

[0018] When the printer is running, the driving gear 11 of the gear transmission mechanism drives the toner cartridge detection device, and the toner cartridge detection device removes the oblique positioning structure between the toner cartridge body 1 and the reset gear 3, and has no interference with the toner cartridge body 1 during rotation. Compared with the prior art, it is no longer necessary to set an arc-shaped mating surface, and the same angle transmission is adopted. The concave and convex transmission accuracy requirement is low compared to the original structure, which is conducive to reducing the production of defective products. The torsion spring 5 can limit the reset gear 3 from being offset during installation and causing the problem of machine recognition, thereby ensuring the manufacturing quality of the product. Therefore, the present invention has low accuracy requirements, which is conducive to reducing the production of defective products, reducing manufacturing costs, and effectively improving the market competitiveness of the company's products.

[0019] The invention can be widely applied to the field of laser printing toner cartridges.

Claims

1. A toner cartridge detection device, comprising a toner cartridge body (1), an end cover (2) and a reset gear (3), wherein the reset gear (3) is arranged on the toner cartridge body (1), and the end cover (2) is located on one side of the toner cartridge body (1) and covers the reset gear (3), characterized in that: The toner cartridge detection device further comprises a spring (4) and a torsion spring (5), wherein the spring (4) is arranged between the reset gear (3) and the toner cartridge body (1), an arc-shaped protrusion (31) and a limiting protrusion (32) are arranged on the end surface of the reset gear (3) facing the end cover (2), a fan-shaped hole (21) is arranged on the end cover (2), the arc-shaped protrusion (31) passes through the fan-shaped hole (21), the limiting protrusion (32) is in a strip shape close to the arc-shaped protrusion (31), the top of the arc-shaped protrusion (31) passes through the outer side surface of the end cover (2), the limiting protrusion (32) contacts the inner side surface of the end cover (2), and a positioning column is also arranged on the end surface of the reset gear (3) facing the end cover (2). (33), the limiting protrusion (32) is connected to the positioning column (33) from the edge of the reset gear (3) in the length direction, the torsion spring (5) is fixed on the outer surface of the end cover (2), one leg of which is in contact with the end cover (2), and the other leg is in contact with the side of the arc-shaped protrusion (31), the torsion spring (5) is locked on the end cover (2) by a fixing pin (6), fixed by the fixing pin (6) and adapted to the arc-shaped protrusion (31) of the reset gear (3), the torsion spring (5) can block the arc-shaped protrusion (31) before the external force acts, and the arc-shaped protrusion (31) passes over the torsion spring (5) under the action of the external force, and the reset gear (3) is arranged on the guide column of the toner cartridge body (1).

2. The toner cartridge detection device according to claim 1, characterized in that: The height of the limiting protrusion (22) is 3 to 6 mm.

3. The toner cartridge detection device according to claim 1, characterized in that: The top surface of the arc-shaped protrusion (31) is 3 to 6 mm higher than the top surface of the end cover (2).

4. The toner cartridge detection device according to claim 1, characterized in that: The top of the arc-shaped protrusion (31) is provided with a chamfer, and the chamfer is 15 to 60 degrees.

5. A toner cartridge comprising the toner cartridge detection device according to claim 1, characterized in that: The toner cartridge further comprises the toner cartridge body (1), a stirring frame, a developing roller and a powder feeding roller arranged in the toner cartridge body (1); the stirring frame, the powder feeding roller and the developing roller are fixed on the two side walls of the toner cartridge body (100) and are driven to rotate by a gear transmission mechanism; the gear transmission mechanism comprises a driving gear (11), a developing roller gear (12) and a transmission gear (13) meshed with the driving gear (11), a stirring frame gear (14) meshed with the transmission gear (13) and a reset gear (3) meshed with the stirring frame gear (14); the rotational torque of the driving gear (11) is transmitted to the transmission gear (13); the rotation of the stirring frame gear and the reset gear (3) driven by the transmission gear (13) matches the sensor of the printer, so that the printer recognizes that the toner cartridge is a brand new one.

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