External powder stirring type duplicator powder supply cylinder

Abstract

The utility model discloses an external powder stirring type copying machine powder supply barrel which comprises a barrel body, a driving frame, a powder outlet frame, a stirring frame and a butt joint frame. The front end of the cylinder is provided with a first powder outlet, and the rear end is provided with a powder feeding port; the driving frame is arranged at the front end of the cylinder body, a driving gear is arranged on the driving frame, and a second powder outlet communicated with the first powder outlet is formed in the driving frame; the driving frame is sleeved with the powder outlet frame, a powder outlet cavity is defined by the powder outlet frame and the driving frame, and a third powder outlet communicated with the powder outlet cavity is formed in the powder outlet frame; the stirring frame is arranged on the driving frame and is positioned in the powder outlet cavity; the butt joint frame is arranged on the toner outlet frame and is used for being in butt joint with the copying machine; the carbon powder is stirred and discharged outside the cylinder body, so that the space of the first powder outlet in the cylinder body is not occupied, the risk of unsmooth powder discharging is greatly reduced, and very good practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of printing consumables, and in particular to an externally stirred toner supply cylinder for a copier. Background Technology

[0002] The toner supply unit is a core component of a copier. It connects to the copier to supply toner. For example, Chinese Patent 2019207091902 discloses a toner supply cylinder with a toner stirring mechanism inside the cylinder. This mechanism is driven by gears to rotate within the cylinder, thus discharging toner. However, with this type of toner supply cylinder, troubleshooting requires removing and cleaning the toner stirring mechanism from the cylinder to resolve the issue. Furthermore, the toner stirring mechanism extends into the cylinder from the toner outlet end, occupying some space and further increasing the likelihood of poor toner dispensing. Therefore, there is an urgent need for an externally stirring toner supply cylinder to solve these problems. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an externally agitated toner supply cylinder for a copier.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: an externally stirred toner copier toner supply cylinder, including a cylinder body, a drive frame, a toner outlet frame, a stirring frame, and a docking frame;

[0005] The front end of the cylinder has a first powder outlet, and the rear end has a powder inlet;

[0006] The drive frame is installed at the front end of the cylinder and a drive gear is provided on it. The drive frame is provided with a second powder outlet that communicates with the first powder outlet.

[0007] The powder outlet frame is sleeved on the drive frame and forms a powder outlet cavity with the drive frame. The powder outlet frame is provided with a third powder outlet that communicates with the powder outlet cavity.

[0008] The stirring rack is mounted on the drive frame and located inside the powder outlet chamber;

[0009] The docking bracket is installed on the toner dispenser and is used to dock with the copier.

[0010] As one of the preferred embodiments of this utility model, a plug-in seat is provided on the second powder outlet, and a plug-in groove is provided on the plug-in seat, into which the stirring rack is inserted.

[0011] As one of the preferred embodiments of this utility model, the plug-in base is provided with a plurality of limiting grooves, and the stirring rack is provided with a plurality of limiting blocks. The limiting blocks can extend into the limiting grooves when the stirring rack is inserted into the plug-in base, so as to limit the relative rotation between the stirring rack and the plug-in base.

[0012] As one of the preferred embodiments of this utility model, the stirring rack is provided with a limiting protrusion, which can extend beyond the insertion groove and abut against the rear end of the insertion seat to limit the axial movement between the stirring rack and the insertion seat.

[0013] As one of the preferred embodiments of this utility model, a stop block is slidably provided on the powder dispensing rack for closing or opening the third powder dispensing port.

[0014] As one of the preferred embodiments of this utility model, a groove communicating with the third powder outlet is constructed on the powder dispensing frame, and a stop block is slidably disposed in the groove and connected to the powder dispensing frame through a limiting structure to limit the sliding stroke of the stop block.

[0015] As one of the preferred embodiments of this utility model, the limiting structure includes a limiting hook disposed on the stop block and a strip groove disposed on the powder discharge rack. The strip groove is arranged along the sliding direction of the stop block, and the limiting hook can extend into the strip groove when the stop block is placed into the sliding groove.

[0016] As one of the preferred embodiments of this utility model, a powder feeding device is provided at the rear end of the cylinder to close or open the powder feeding port.

[0017] The beneficial effects of this utility model are as follows: An externally agitated toner supply cylinder for a copier includes a cylinder body, a drive frame, a toner dispensing frame, a stirring frame, and a docking frame; the front end of the cylinder body has a first toner outlet and the rear end has a toner filling port; the drive frame is mounted on the front end of the cylinder body and has a drive gear on it, and the drive frame has a second toner outlet communicating with the first toner outlet; the toner dispensing frame is sleeved on the drive frame and forms a toner dispensing cavity with the drive frame, and the toner dispensing frame has a third toner outlet communicating with the toner dispensing cavity; the stirring frame is mounted on the drive frame and located inside the toner dispensing cavity; the docking frame is mounted on the toner dispensing frame for docking with the copier; by agitating the toner outside the cylinder body, the space of the first toner outlet on the cylinder body is not occupied, greatly reducing the risk of poor toner dispensing and making it very practical. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 A schematic diagram of the toner supply cylinder of an externally agitated toner copier;

[0020] Figure 2 An exploded view of a toner supply cylinder for an externally agitated toner copier;

[0021] Figure 3 This is a schematic diagram of the mixing rack. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figures 1 to 3 An externally stirred toner copier toner supply cylinder includes a cylinder body 10, a drive frame 20, a toner outlet frame 30, a stirring frame 40, and a docking frame 50.

[0027] The front end of the cylinder 10 has a first powder outlet 11 and the rear end has a powder inlet;

[0028] The drive frame 20 is installed at the front end of the cylinder 10 and a drive gear 21 is provided thereon. The drive frame 20 is provided with a second powder outlet 22 that communicates with the first powder outlet 11.

[0029] The powder outlet frame 30 is sleeved on the drive frame 20 and forms a powder outlet cavity with the drive frame 20. The powder outlet frame 30 is provided with a third powder outlet 31 that communicates with the powder outlet cavity.

[0030] The stirring rack 40 is mounted on the drive frame 20 and located inside the powder outlet chamber;

[0031] The docking bracket 50 is mounted on the toner dispenser 30 and is used to dock with the copier.

[0032] In this invention, during assembly, the stirring frame 40 is first mounted on the drive frame 20, and then the drive frame 20 is fitted onto the front end of the cylinder 10. The drive frame 20 and the cylinder 10 rotate synchronously via limiting teeth. Next, the powder dispensing frame 30 is fitted onto the drive frame 20, covering the stirring frame 40. Then, the powder dispensing frame 30 is mounted on the docking bracket 50. Finally, toner is filled into the cylinder 10. During use, the docking bracket 50 is aligned with the docking structure inside the copier. The toner cartridge is placed inside the copier, and the drive gear 21 is simultaneously engaged with the drive mechanism inside the copier, thereby driving the cartridge 10, drive frame 20, and stirring frame 40 to rotate synchronously. It should be noted that the side wall of the cartridge 10 is provided with a concave push groove, which can push the toner inside it forward when the cartridge 10 rotates, until it enters the toner outlet chamber through the first toner outlet 11 and the second toner outlet 22. The stirring frame 40 stirs the toner in the toner outlet chamber, and finally it is discharged from the third toner outlet 31 for use in the copier.

[0033] Reference Figure 2 In some embodiments, a plug-in seat 60 is provided on the second powder outlet 22, and a plug-in groove 61 is provided on the plug-in seat 60. The stirring frame 40 is inserted into the plug-in groove 61, and the stirring frame 40 and the drive frame 20 are connected in the form of plug-in, which has the advantage of quick assembly.

[0034] Reference Figures 2 to 3 In some embodiments, the plug-in base 60 is provided with a plurality of limiting grooves 62, and the stirring rack 40 is provided with a plurality of limiting blocks 63. The limiting blocks 63 can extend into the limiting grooves 62 when the stirring rack 40 is inserted into the plug-in base 60, so as to restrict the relative rotation between the stirring rack 40 and the plug-in base 60. This arrangement can prevent relative rotation between the stirring rack 40 and the plug-in base 60 when the powder supply cylinder is working.

[0035] Reference Figures 2 to 3 In some embodiments, the stirring frame 40 is provided with a limiting protrusion 41, which can pass over the insertion groove 61 and abut against the rear end of the insertion seat 60 to restrict the axial movement between the stirring frame 40 and the insertion seat 60. During assembly, the limiting protrusion 41 is inserted into the insertion groove 61 and pushed in until the limiting protrusion 41 passes over the insertion groove 61 and abuts against the rear end of the insertion seat 60. At this time, the stirring frame 40 and the drive frame 20 can be connected as one unit.

[0036] Reference Figures 1 to 2In some embodiments, a stop 70 is slidably provided on the toner dispenser 30 for closing or opening the third toner outlet 31. The stop 70 can cooperate with the push mechanism inside the copier when the toner cartridge is installed inside the copier, and be pushed to open the third toner outlet 31, thereby realizing the automatic opening of the third toner outlet 31.

[0037] Reference Figures 1 to 2 In some embodiments, a groove 32 communicating with the third powder outlet 31 is constructed on the powder dispensing rack 30. The stop block 70 is slidably disposed in the groove 32 and connected to the powder dispensing rack 30 through a limiting structure 80 to limit the sliding stroke of the stop block 70. As a preferred embodiment of the limiting structure 80, the limiting structure 80 includes a limiting hook 81 disposed on the stop block 70 and a strip groove 82 disposed on the powder dispensing rack 30. The strip groove 82 is arranged along the sliding direction of the stop block 70, and the limiting hook 81 can extend into the strip groove 82 when the stop block 70 is placed in the groove 32.

[0038] Reference Figures 1 to 2 In some embodiments, the rear end of the cylinder 10 is provided with a powder feeding device 90 that can close or open the powder feeding port.

[0039] The advantages of this invention are: by stirring the carbon powder outside the cylinder, the space of the first powder outlet on the cylinder is not occupied, which greatly reduces the risk of poor powder discharge and has very good practicality.

[0040] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A toner supply cylinder for an externally stirred toner copier, characterized in that: It includes a cylinder (10), a drive frame (20), a powder outlet frame (30), a stirring frame (40), and a docking frame (50); The cylinder (10) has a first powder outlet (11) at the front end and a powder inlet at the rear end; The drive frame (20) is installed at the front end of the cylinder (10) and a drive gear (21) is provided thereon. The drive frame (20) is provided with a second powder outlet (22) that communicates with the first powder outlet (11). The powder outlet frame (30) is sleeved on the drive frame (20) and forms a powder outlet cavity with the drive frame (20). The powder outlet frame (30) is provided with a third powder outlet (31) that communicates with the powder outlet cavity. The stirring rack (40) is mounted on the drive frame (20) and located inside the powder outlet chamber; The docking frame (50) is mounted on the toner dispenser (30) and is used to dock with the copier.

2. The toner supply cylinder for an externally stirred toner copier according to claim 1, characterized in that: The second powder outlet (22) is provided with a connector (60), the connector (60) is provided with a connector groove (61), and the stirring rack (40) is inserted into the connector groove (61).

3. The toner supply cylinder for an externally stirred toner copier according to claim 2, characterized in that: The plug-in seat (60) is provided with a plurality of limiting grooves (62), and the stirring rack (40) is provided with a plurality of limiting blocks (63). The limiting blocks (63) can extend into the limiting grooves (62) when the stirring rack (40) is inserted into the plug-in seat (60) to restrict the relative rotation between the stirring rack (40) and the plug-in seat (60).

4. The toner supply cylinder for an externally stirred toner copier according to claim 2, characterized in that: The stirring rack (40) is provided with a limiting protrusion (41), which can pass over the insertion groove (61) and abut against the rear end of the insertion seat (60) to restrict the axial movement between the stirring rack (40) and the insertion seat (60).

5. The toner supply cylinder for an externally stirred toner copier according to claim 1, characterized in that: A stop (70) is slidably provided on the powder outlet frame (30) for closing or opening the third powder outlet (31).

6. The toner supply cylinder for an externally stirred toner copier according to claim 5, characterized in that: The powder dispensing rack (30) has a groove (32) that communicates with the third powder outlet (31). The stop block (70) is slidably disposed in the groove (32) and connected to the powder dispensing rack (30) through a limiting structure (80) to limit the sliding stroke of the stop block (70).

7. A toner supply cylinder for an externally stirred toner copier according to claim 6, characterized in that: The limiting structure (80) includes a limiting hook (81) disposed on the stop block (70) and a strip groove (82) disposed on the powder dispensing rack (30). The strip groove (82) is arranged along the sliding direction of the stop block (70). The limiting hook (81) can extend into the strip groove (82) when the stop block (70) is placed into the slide groove (32).

8. The toner supply cylinder for an externally stirred toner copier according to claim 1, characterized in that: The rear end of the cylinder (10) is provided with a powder feeding device (90) that can close or open the powder feeding port.

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