CN109683457B

CN109683457B - Magnetic roller

Info

Publication number: CN109683457B
Application number: CN201811619498.4A
Authority: CN
Inventors: 姚国彬; 刘鸿; 黄秀梅; 吴云
Original assignee: Zhongshan Benda Printing Supplies Co ltd
Current assignee: Zhongshan Benda Printing Supplies Co ltd
Filing date: 2018-12-28
Publication date: 2024-06-04
Anticipated expiration: 2038-12-28

Abstract

The invention relates to the field of printing consumables, in particular to a magnetic roller. The magnetic roller comprises a magnetic roller body, wherein the magnetic roller comprises an aluminum pipe and a magnetic core which is arranged in the aluminum pipe and penetrates through the aluminum pipe, and an end cover is movably connected to a conductive end of the aluminum pipe. The magnetic core comprises an iron shaft and a magnetic sheet sleeved outside the iron shaft, a transmission head is sleeved at the other end of the aluminum pipe, meshing surfaces matched with the selenium drum internal gear are formed in two sides of the transmission head, conductive wires contacting with the conductive end of the iron shaft are arranged in the end cover, and the tail ends of the conductive wires are wound out of the end cover and contact with the aluminum pipe. Compared with the prior art, the invention adopts the combination of the iron shaft and the conductive wire to conduct electricity, the iron shaft is directly contacted with the conductive sheet in the selenium drum side cover, the phenomenon of poor conduction caused by the movable contact of the conductive wire and the selenium drum side cover is avoided, the product percent of pass is greatly improved, and the service life is greatly prolonged.

Description

Magnetic roller

[ Field of technology ]

The invention relates to the field of printing consumables, in particular to a magnetic roller.

[ Background Art ]

The magnetic roller is an important component in the selenium drum, the performance of the magnetic roller directly influences the use experience of a customer on a printer, and most of magnetic rollers sold in the current market work through the contact conduction of springs at the conducting ends of the magnetic roller and the selenium drum.

[ Invention ]

The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a magnetic roller with stable electric conduction.

Aiming at the problems, the invention adopts the following technical scheme:

The utility model provides a magnetic roller, includes the magnetic roller body, the magnetic roller is including the aluminum pipe and set up in the aluminum pipe and run through the inside magnetic core of aluminum pipe, swing joint has the end cover on the conductive end of aluminum pipe. The magnetic core comprises an iron shaft and a magnetic sheet sleeved outside the iron shaft, a transmission head is sleeved at the other end of the aluminum pipe, meshing surfaces matched with the selenium drum internal gear are formed in two sides of the transmission head, conductive wires contacting with the conductive end of the iron shaft are arranged in the end cover, and the tail ends of the conductive wires are wound out of the end cover and contact with the aluminum pipe.

Preferably, the magnetic sheet includes a first magnetic sheet and a second magnetic sheet, each of which is made of a resin magnet.

Preferably, the first magnetic sheet and the second magnetic sheet are both in a semicircular structure.

Preferably, a notch is formed at the joint of the end cover and the conductive end, a groove is formed in the outer side wall of the end cover, and the groove is in butt joint with the notch.

Preferably, the conductive wire is a plane spiral spring, the conductive end of the iron shaft passes through the center of the conductive wire and is in contact with the conductive end of the iron shaft, the tail end of the conductive wire is provided with a extension wire, one end of the extension wire is connected with the tail end of the conductive wire, and the free end of the extension wire bypasses the notch and is arranged in the groove and is in contact with the aluminum pipe.

The magnetic roller has the beneficial effects that:

because the invention comprises the aluminum pipe and the magnetic core arranged in the aluminum pipe, the conductive end of the aluminum pipe is provided with the end cover movably connected with the magnetic core, and the end cover is internally provided with the conductive wire contacted with the aluminum pipe and the magnetic core, compared with the prior art, the invention adopts the combination of the iron shaft and the conductive wire to conduct electricity, the iron shaft is directly contacted with the conductive sheet in the selenium drum side cover, the phenomenon of poor conduction caused by the movable contact of the conductive wire and the selenium drum side cover is avoided, the product percent of pass is greatly improved, and the service life is greatly prolonged.

The conception, specific structure, and resulting effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.

[ Description of the drawings ]

FIG. 1 is a schematic illustration of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an exploded view of a magnetic roller;

FIG. 4 is a schematic view of an end cap;

FIG. 5 is a cross-sectional view of the end cap;

FIG. 6 is a schematic diagram of a drive head;

FIG. 7 is a left side view of the conductive wire;

FIG. 8 is a cross-sectional view of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8-A;

A magnet roller body 1; an aluminum pipe 2; a conductive terminal 21; a magnetic core 3; an iron shaft 31; an iron shaft conductive end 311; a first magnetic sheet 32; a second magnetic sheet 33; an end cap 4; a notch 41; a groove 42; a transmission head 5; an engagement surface 51; a conductive wire 6; the end 61 of the conductive wire; a filament 7; extending the free end 71 of the filament; extending along one end 72 of the filament.

[ Detailed description ] of the invention

A magnetic roller according to the invention is further described below with reference to the accompanying drawings:

in order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present invention. Furthermore, in the description of the invention, unless otherwise indicated, the meaning of "a plurality", "a number" or "a plurality" is two or more.

Referring to fig. 1 to 7, fig. 1 to 7 disclose a preferred embodiment of a magnetic roller:

The utility model provides a magnetic roller, includes magnetic roller body 1, magnetic roller body 1 is including aluminum pipe 2 and the magnetic core 3 that sets up in aluminum pipe 2 and run through inside aluminum pipe 2, swing joint has end cover 4 on the conductive end 21 of aluminum pipe 2. The magnetic core 3 includes the iron axle 31 and overlaps and locate the outside magnetic sheet of iron axle 31, in this embodiment, the magnetic sheet includes first magnetic sheet 32 and second magnetic sheet 33, first magnetic sheet 32 and second magnetic sheet 33 are by the resin magnet preparation, first magnetic sheet 32 and second magnetic sheet 33 all are semicircle structure, first magnetic sheet 32 and second magnetic sheet 33 laminating are on the iron axle 31 to form the magnetic core 3.

Specifically, the other end of the aluminum tube 2 is sleeved with a transmission head 5, two sides of the transmission head 5 are provided with engagement surfaces 51 matched with the internal gear of the selenium drum, and in this embodiment, the other end of the iron shaft 31 is inserted into the transmission head 5. When the selenium drum is started, the internal gear of the selenium drum is meshed with the meshing surface 51 of the transmission head 5, so that the magnetic roller is driven to rotate.

More specifically, the end cap 4 is provided therein with a conductive wire 6 in contact with the conductive end 311 of the iron shaft, and in this embodiment, the conductive wire 6 is a flat spiral spring, and the conductive end 311 of the iron shaft passes through the center of the conductive wire 6 and contacts with the center of the conductive wire 6.

More specifically, a notch 41 is formed at the connection between the end cover 4 and the conductive end 21, a groove 42 is formed on the outer side wall of the end cover 4, and the groove 42 is in butt joint with the notch 41, so as to be communicated.

More specifically, the end 61 of the conductive wire is provided with a filament 7, in this embodiment, the filament 7 is in a U shape, one end of the filament 7 is connected to the end 61 of the conductive wire, and the free end 71 of the filament bypasses the notch 41 and is disposed in the groove 42 and contacts the aluminum tube 2. The conductive wire 6 and the extension wire 7 are of an integrated structure, and the outer side wall of the end cover 4 is provided with the groove 42, and the free end 71 of the extension wire can be arranged inside the groove 42 after bypassing the notch 41, so that the end cover 4 and the aluminum pipe 2 are in seamless connection. And because the extension wire 7 is elastic, the extension wire always contacts with the aluminum pipe 2, thereby conducting electricity.

The conducting process of the invention is as follows:

Firstly, the iron shaft conductive end 311 is directly contacted with a conductive sheet in the selenium drum side cover, the iron shaft conductive end 311 passes through the center of the conductive wire 6 and is contacted with the center of the conductive wire 6, the tail end 61 of the conductive wire is provided with a extension wire 7, and the free end 71 of the extension wire bypasses the notch 41 and is arranged in the groove 42 and is contacted with the aluminum tube 2. The electric energy is transferred along the conductive end 311 of the iron shaft to the conductive wire 6, to the extension wire 7, and finally directly to the conductive end 21 of the aluminum tube, thereby charging the aluminum tube 2.

Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Claims

1. The utility model provides a magnetic roller, includes magnetic roller body (1), magnetic roller body (1) is including aluminum pipe (2) and magnetic core (3) that set up in aluminum pipe (2) and run through the inside aluminum pipe, swing joint has end cover (4), its characterized in that on conductive end (21) of aluminum pipe (2): the magnetic core (3) comprises an iron shaft (31) and a magnetic sheet sleeved outside the iron shaft (31), a transmission head (5) is sleeved at the other end of the aluminum pipe (2), meshing surfaces (51) matched with the selenium drum internal gear are formed on two sides of the transmission head (5), a conductive wire (6) contacted with an iron shaft conductive end (311) is arranged in the end cover (4), and the tail end of the conductive wire winds out of the end cover (4) and contacts with the aluminum pipe (2);

The magnetic pieces comprise a first magnetic piece (32) and a second magnetic piece (33), and the first magnetic piece (32) and the second magnetic piece (33) are made of resin magnets;

The first magnetic sheet (32) and the second magnetic sheet (33) are of semicircular structures;

A notch (41) is formed in the joint of the end cover (4) and the conductive end (21), a groove (42) is formed in the outer side wall of the end cover (4), and the groove (42) is in butt joint with the notch (41);

the conductive wire (6) is a plane spiral spring, the iron shaft conductive end (311) penetrates through the center of the conductive wire (6) and is in contact with the center of the conductive wire (6), the tail end (61) of the conductive wire is provided with an extension wire (7), one end (72) of the extension wire is connected with the tail end (61) of the conductive wire, and the free end (71) of the extension wire bypasses the notch and is arranged in the groove and is in contact with the aluminum pipe.