CN113156788A

CN113156788A - Powder bin structure of laser printer

Info

Publication number: CN113156788A
Application number: CN202110470120.8A
Authority: CN
Inventors: 李�一; 王立成; 王奇
Original assignee: Ningbo Deli Kebei Technology Co Ltd
Current assignee: Ningbo Deli Kebei Technology Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-07-23

Abstract

The invention relates to a powder bin structure of a laser printer, which can be detachably embedded in a printer shell and can be matched and butted with a toner cartridge main body, and comprises a powder bin box with a cavity inside; the toner cartridge main body is provided with a toner hopper for toner in the toner hopper box to enter, and the wall of the toner hopper is provided with a toner inlet; the powder bin box is provided with a powder outlet which can be matched and opposite to the powder inlet. This laser printer's powder storehouse structure, the powder storehouse can independently be changed, and convenience of customers independently irritates the powder, also can directly change the powder storehouse box with the low cost.

Description

Powder bin structure of laser printer

Technical Field

The invention relates to the technical field of printers, in particular to a powder bin structure of a laser printer.

Background

The selenium drum mechanism used in the existing laser printer is mainly divided into an integrated selenium drum structure and a split selenium drum structure. The integrated toner cartridge structure integrates the imaging unit and the developing unit in the toner cartridge, and a user needs to integrally replace the toner cartridge or automatically fill the toner cartridge with toner after using the toner in the toner cartridge. Because the selenium drum has more internal components and higher replacement cost, and the user fills powder into the selenium drum by oneself, the problem of powder blocking or powder leakage is easy to appear when printing because of improper operation, and then the printing effect is influenced or the printing portrait is polluted. And current split type selenium drum structure is usually with independent component of becoming of powder storehouse and developer roll, and after the powdered ink in the powder storehouse used up, then need change powder storehouse and developer roll simultaneously, and the replacement cost is higher to powder storehouse and developer roll structure setting are usually in the casing of printer, need open the apron that corresponds the position on the printer when changing the powder storehouse, and the operation is not convenient, need open and take out the powder storehouse again behind the printer cover.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a powder bin structure of a laser printer, in which a powder bin can be independently replaced.

The second technical problem to be solved by the present invention is to provide a powder bin structure of a laser printer, which is not required to open a cover of a printer housing when a powder bin is taken and placed, so that the powder bin operation is simpler and more convenient.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a laser printer's powder storehouse structure, can dismantle ground inlays to establish in printer casing and can match the butt joint with the selenium drum main part, its characterized in that: comprises a powder bin box with a cavity inside; the toner cartridge main body is provided with a toner hopper for toner in the toner hopper box to enter, and the wall of the toner hopper is provided with a toner inlet; the powder bin box is provided with a powder outlet which can be matched and opposite to the powder inlet.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the powder bin is characterized in that a notch is formed in the casing corresponding to the mounting position of the powder bin box, and a shell capable of covering the notch in a matching mode is connected to the outside of the powder bin box.

In order to effectively realize the protection to the powder storehouse box, make things convenient for the matching butt joint of powder storehouse box and toner storehouse simultaneously, the shell parcel sets up outside the powder storehouse box to the shell is corresponding to the regional open setting of powder storehouse box matching butt joint selenium drum main part.

In order to conveniently realize the connection between the shell and the printer shell and also facilitate the stable installation of the powder bin box in the shell, the outer surfaces at the two ends of the shell are provided with clamping pieces which can be clamped on the shell.

In order to provide a guide for the installation of the powder bin box, a connecting piece is arranged on the inner surface of the machine shell corresponding to the position of each clamping piece, and a clamping groove for placing the clamping pieces into is formed in the connecting piece along the taking and placing direction of the powder bin box.

In order to avoid the powder storehouse box to deviate from in the use, guarantee this powder storehouse structural installation's fastness, the user of being convenient for simultaneously targets in place to the installation of powder storehouse box, be provided with the locating part on the connecting piece, locating part elastic connection just has the trend to the draw-in groove direction suppress on the locating part, have on the locating part and can stretch into to the draw-in groove in and spacing portion of spacing joint spare.

In order to better provide the direction for the assembly of the powder bin box, a guide groove is arranged on the butt joint surface of the ink powder bin along the taking and placing direction of the powder bin box, and a convex block which can be matched with the guide groove is convexly arranged on the butt joint surface of the powder bin box.

Preferably, the powder bin box is internally provided with a storage tank for storing toner, a conveying tank arranged on one side of the storage tank, a stirring rod rotatably arranged in the storage tank, and a screw rotatably arranged in the conveying tank, and the powder outlet is arranged on the conveying tank.

More conveniently, the puddler is connected with the sensitization drum transmission in the selenium drum main part, the screw rod is connected with the puddler transmission.

As an improvement, a first cover body which can be opened along with the installation action of the powder bin box is arranged on the powder outlet, and a second cover body which can be opened along with the installation action of the powder bin box is arranged on the powder inlet. .

Compared with the prior art, the invention has the advantages that: the powder bin structure of the laser printer is characterized in that the powder bin box for storing toner is arranged independently of the toner cartridge main body comprising other toner cartridge components such as a developing roller and a photosensitive drum, and only needs to be butted with the toner bin of the toner cartridge main body when in use. So, this structure requires lowly to irritating the powder, and convenience of customers independently irritates the powder, even directly change powder storehouse box, its cost is also low.

On the basis, the powder bin box is connected with a notch which can be matched and covered on the shell and corresponds to the powder bin box, so that the powder bin box can be assembled and the sealing work of the shell can be completed, and the operation is simpler and more convenient.

Drawings

Fig. 1 is a perspective view of a powder hopper structure of a laser printer after the printer is assembled according to an embodiment of the present invention.

Fig. 2 is a perspective view of fig. 1 with the housing removed.

FIG. 3 is a drawing showing the assembly of the toner hopper structure of the laser printer and the main body of the cartridge in accordance with the embodiment of the present invention.

Fig. 4 is an exploded perspective view of the rear view of fig. 3.

Fig. 5 is an exploded perspective view of the front view of fig. 3.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 5, the powder bin structure of the laser printer in this embodiment is detachably embedded in the printer housing 1 and can be mated and butted with the cartridge body 2. Specifically, the powder bin structure of the laser printer comprises a powder bin box 3 and a shell 4 connected to the powder bin box 3.

The toner cartridge body 2 includes various components in the prior art, such as the toner cartridge body 2 includes components such as a photosensitive drum, a developing roller, a transfer roller, and a charging roller, and in order to facilitate uniform distribution of toner on the developing roller, a toner hopper 21 is generally disposed above the developing roller for toner to enter and guide the toner to be uniformly distributed on the developing roller. In this embodiment, the wall of the toner hopper 21 is provided with a toner inlet 211 for toner in the toner hopper 3 to enter.

The powder bin box 3 in this embodiment is matched with the toner cartridge main body 2 and is integrally in a strip shape, and a cavity for accommodating toner is arranged inside the powder bin box 3. In order to facilitate the assembly and the opening of the replenishing toner, the powder hopper 3 is composed of an upper box body and a lower box body which are mutually matched, a storage groove 33 for storing the toner and a conveying groove 34 arranged on one side of the storage groove 33 are arranged in the lower box body of the powder hopper 3, and the storage groove 33 and the conveying groove 34 are mutually parallel and extend along the length direction. The agitator arm 7 is rotatably arranged in the storage tank 33, the two ends of the agitator arm 7 are rotatably connected to the end walls of the two ends of the toner cartridge box 3, and the agitator arm 7 can stir the toner in the storage tank 33 along with the rotation, so that the toner in the storage tank 33 is stirred into the conveying groove 34 on one side. A screw 8 is rotatably provided in the conveying chute 34, and one end of the screw 8 is rotatably connected to an end wall of one end of the hopper box 3.

The powder bin box 3 is provided with a powder outlet 31 for outputting the toner, in this embodiment, the powder outlet 31 is arranged at the end of the conveying groove 34, and the toner in the conveying groove 34 can be pushed to the position of the powder outlet 31 along with the rotation of the screw 8, and then is output from the powder outlet 31.

Wherein the stirring rod 7 and the screw 8 can be driven to rotate independently. In this embodiment, for convenience of operation and simplicity of structure, the stirring rod 7 is in transmission connection with the photosensitive drum in the toner cartridge main body 2 through a transmission mechanism, and the screw 8 and the stirring rod 7 are also in transmission connection through the transmission mechanism.

After the toner cartridge 3 is assembled in place in the casing 1, the toner cartridge 3 can be butted with the toner cartridge 21 of the toner cartridge main body 2, wherein the butting indicates that the matching of the position relation can be satisfied, and the toner cartridge 3 and the toner cartridge main body are not necessarily connected with each other structurally. In this embodiment, after the toner cartridge 3 is assembled in place in the casing 1, the toner outlet 31 of the toner cartridge 3 is matched with the toner inlet 211 of the toner cartridge 21, so that the toner output from the toner outlet 31 of the toner cartridge 3 can directly enter the toner cartridge 21 from the toner inlet 211 of the toner cartridge 21, i.e. the toner cartridge 3 is butted with the toner cartridge 21 of the toner cartridge main body 2. In this embodiment, the lower portion of the toner hopper 3 is butted against the upper portion of the toner hopper 21.

In the unassembled state of the powder hopper 3, in order to prevent the toner in the powder hopper 3 from falling from the powder hopper 3, the powder outlet 31 of the powder hopper 3 is provided with a first cover 35. Meanwhile, in the unassembled state of the toner hopper cartridge 3, in order to prevent other foreign substances from falling into the toner hopper 21, a second cover 213 is provided on the toner inlet 211 of the toner hopper 21. Wherein the first cover 35 and the second cover 213 can be opened along with the installation of the powder box 3. If a first pushing member capable of pushing the second cover 213 to move along the assembly direction of the powder bin box 3 is fixedly arranged at the bottom of the powder bin box 3, and a first pushing member capable of pushing the first cover 35 to move along the assembly direction of the powder bin box 3 in the reverse direction is arranged on the upper bin wall of the toner bin 21, the first cover 35 and the second cover 213 are opened simultaneously when the powder bin box 3 is assembled, so that the powder outlet 31 is communicated with the powder inlet 211 relatively. In this embodiment, the first cover 35 is a cover that is elastically and rotatably connected to the powder bin box 3, before the powder bin box 3 is assembled, the first cover 35 covers the powder outlet 31, when the powder bin box 3 is assembled, the first cover 35 touches the side wall of the toner bin 21, and then the first cover 35 rotates to open along with the assembly and the pushing of the powder bin box 3. When the powder bin box 3 is taken out, the first cover body 35 can be reset under the elastic reset acting force, and then the powder outlet 31 is covered. The second cover 213 in this embodiment is disposed by the aforementioned pushing structure.

In addition, in order to ensure that the abutting position of the powder outlet 31 and the powder inlet 211 is accurate, a guide groove 212 is arranged on the abutting surface of the toner hopper 21 along the taking and placing direction of the toner hopper 3, and a convex block 32 which can be matched with the guide groove 212 is convexly arranged on the abutting surface of the toner hopper 3. In this embodiment, the guide groove 212 is formed by providing two ribs at intervals on the abutting surface of the toner hopper 21.

In this embodiment, the abutting surface of the toner hopper 3 is the lower surface of the toner hopper 3, and the abutting surface of the toner hopper 21 is the upper surface of the toner hopper 21. The abutting surface of the toner hopper 3 and the abutting surface of the toner hopper 21 may be other surfaces depending on the specific internal structure of the printer. The guiding groove 212 effectively provides a guide for the installation of the powder bin box 3, and during installation, the lug 32 is aligned with the guiding groove 212 and placed in the guiding groove 212, and then pushed along the direction of the guiding groove 212, so that the powder bin box 3 can be accurately installed in place and is butted with the toner bin 21.

In order to facilitate the installation of the powder bin box 3 in the machine shell 1, a notch 11 is arranged on the machine shell 1 corresponding to the installation position of the powder bin box 3, the powder bin box 3 in the embodiment is externally connected with a shell 4 which can be covered on the notch 11 in a matching manner, so that the sealing work of the machine shell 1 can be directly completed when the powder bin box 3 is assembled, the operation is simpler and more convenient, and a user does not need to perform the opening and closing operation of the cover body on the machine shell 1.

The setting of the 4 parcel of shell in this embodiment is outside powder storehouse box 3 to shell 4 is corresponding to the open setting in the region that 3 matches the butt joint selenium drum main part 2 in powder storehouse box, realizes the butt joint with toner hopper 21 with this powder storehouse box 3 in order to make things convenient for, and then guarantees effectively to accomplish the printing work. In this embodiment, the lower part of the powder hopper 3 is butted against the upper part of the toner hopper 21, so that the housing 4 is opened downward, and the housing 4 is fixedly connected to the upper box of the powder hopper casing.

In order to ensure the butt joint quality of the shell 4 and the printer casing 1 and ensure the firmness of the installation of the shell 4 and the powder bin box 3 in the casing 1, the outer surfaces of the two ends of the shell 4 are provided with clamping pieces 41 capable of being clamped on the casing 1. The inner surface of the casing 1 is provided with a connecting piece 5 corresponding to each clamping piece 41, and the connecting piece 5 is provided with a clamping groove 51 for placing the clamping piece 41 in along the taking and placing direction of the powder bin box 3. The engaging groove 51 can also provide a guide for assembling the powder bin box 3, the engaging member 41 in this embodiment extends along the taking and placing direction of the powder bin box 3 and is in a long strip shape, and the engaging groove 51 is also in a long strip shape and has a length greater than that of the engaging member 41. The connecting member 5 is provided with a limiting member 6, the limiting member 6 is elastically connected to the limiting member 6 and tends to be elastically pressed toward the direction of the slot 51, and the limiting member 6 is provided with a limiting portion 61 capable of extending into the slot 51 to limit the clamping member 41. In this embodiment, after powder storehouse box 3 state targets in place, the spacing portion 61 of joint 41 then suppresses to the rear portion of joint 41, has so realized the limiting displacement to joint 41, avoids the condition that the shell 4 moves back to appear under the effect of little external force, has guaranteed the stability in the powder storehouse box 3 course of operation. When the powder bin box 3 needs to be taken out, the shell 4 is pulled outwards, the clamping piece 41 can overcome the elastic pressure of the limiting piece 6, and then in the process that the shell 4 and the powder bin box 3 are pulled outwards, the clamping piece 41 slides along the guide of the clamping groove 51, and the lug 32 on the powder bin box 3 moves along the guide groove 212 of the toner bin 21 until the powder bin box 3 is taken out of the machine shell 1.

Because the toner cartridge 3 is independent of the toner cartridge main body 2 containing other toner cartridge assemblies such as a developing roller and a photosensitive drum, the toner cartridge can be used only by being butted with the toner cartridge 21 of the toner cartridge main body 2. And this structure is low to irritating the powder requirement, and convenience of customers independently irritates the powder, even directly change powder storehouse box 3, its cost is also low. On this basis, this powder storehouse box 3 still is connected with outward and can matches to cover on the breach 11 that corresponds powder storehouse box 3 setting on casing 1 for when accomplishing the assembly of powder storehouse box 3, accomplish the work of sealing of casing 1, it is more simple and convenient to operate.

Claims

1. The utility model provides a laser printer's powder storehouse structure, can dismantle ground inlays to establish in printer casing (1) and can match the butt joint with selenium drum main part (2), its characterized in that: comprises a powder bin box (3) with a cavity inside; the toner cartridge main body (2) is provided with a toner bin (21) for toner in the toner bin box (3) to enter, and the wall of the toner bin (21) is provided with a toner inlet (211); the powder bin box (3) is provided with a powder outlet (31) which can be matched and opposite to the powder inlet (211).

2. The powder bin structure of a laser printer according to claim 1, wherein: the powder bin is characterized in that a notch (11) is formed in the machine shell (1) corresponding to the mounting position of the powder bin box (3), and a shell (4) capable of being matched and covering the notch (11) is connected to the outside of the powder bin box (3).

3. The powder bin structure of a laser printer according to claim 2, wherein: the shell (4) is wrapped and arranged outside the powder bin box (3), and the shell (4) is arranged corresponding to the opening of the area of the powder bin box (3) in a matched and butted selenium drum main body (2).

4. The powder bin structure of a laser printer according to claim 2, wherein: the outer surfaces of the two ends of the shell (4) are provided with clamping pieces (41) capable of being clamped on the machine shell (1).

5. The powder bin structure of a laser printer according to claim 4, wherein: the powder bin is characterized in that a connecting piece (5) is arranged on the inner surface of the casing (1) corresponding to the position of each clamping piece (41), and a clamping groove (51) which can be used for placing the clamping pieces (41) is formed in the connecting piece (5) along the taking and placing direction of the powder bin box (3).

6. The powder bin structure of a laser printer according to claim 5, wherein: be provided with locating part (6) on connecting piece (5), locating part (6) elastic connection just has the trend to draw-in groove (51) direction suppress on locating part (6), have on locating part (6) and can stretch into to draw-in groove (51) in and spacing portion (61) of spacing joint spare (41).

7. A powder hopper structure of a laser printer according to any one of claims 1 to 6, wherein: a guide groove (212) is formed in the butt joint surface of the toner bin (21) along the picking and placing direction of the toner bin box (3), and a convex block (32) capable of being matched with the guide groove (212) is arranged on the butt joint surface of the toner bin box (3) in a protruding mode.

8. A powder hopper structure of a laser printer according to any one of claims 1 to 6, wherein: the powder bin box (3) is internally provided with a storage tank (33) for storing toner, a conveying tank (34) arranged on one side of the storage tank (33), a stirring rod (7) rotatably arranged in the storage tank (33) and a screw (8) rotatably arranged in the conveying tank (34), and the powder outlet (31) is arranged on the conveying tank (34).

9. The powder bin structure of a laser printer according to claim 8, wherein: the stirring rod (7) is in transmission connection with a photosensitive drum in the toner cartridge main body (2), and the screw rod (8) is in transmission connection with the stirring rod (7).

10. A powder hopper structure of a laser printer according to any one of claims 1 to 6, wherein: the powder outlet (31) is provided with a first cover body (35) which can be opened along with the installation action of the powder bin box (3), and the powder inlet (211) is provided with a second cover body (213) which can be opened along with the installation action of the powder bin box (3).