CN218886400U

CN218886400U - Charging roller conductive spring of duplicator

Info

Publication number: CN218886400U
Application number: CN202223233208.7U
Authority: CN
Inventors: 余佳达; 王程展
Original assignee: Wenzhou Heli Spring Manufacture Co ltd
Current assignee: Wenzhou Heli Spring Manufacture Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-04-18
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a duplicator charge roller conductive spring belongs to the conductive spring field, including casing and metal spring, metal spring installs in the casing, helicla flute connection laminating piece is passed through to metal spring's one end, the other end passes through the helicla flute and connects the regulating part, this structure is under the function that does not change metal spring to charge roller elasticity and support the pressure, connected mode through the helicla flute has increased the area of contact with metal spring, through laminating piece and regulating part at the inside slip compression metal spring of casing, the motion range that produces deformation when having injecing metal spring to be compressed, stability when having improved metal spring compressed, thereby conductive spring's contact nature and stability have been improved.

Description

Conductive spring of charging roller of copier

Technical Field

The utility model belongs to the conductive spring field relates to a duplicator charge roller conductive spring more particularly.

Background

The charging roller of copying machine is a new environment-protecting charging mode, and said mode can reduce the generation of ozone, and its charging is uniform, and has no noise, and can be extensively used in laser printer, and also can be used in low-speed copying machine.

Current roller that charges passes through conductive spring to be connected the circular telegram, and conductive spring charges the in-process for the roller that charges, and the roller that charges is rotatory always, makes conductive spring cause deformation and displacement in long-term rotatory vibrations, causes conductive spring unstability, and conductive spring and the laminating degree of the roller that charges reduce, lead to conductive spring contact nature bad and stability to reduce.

Through the retrieval, the name that utility model created is: a conductive spring (application number: 201821587657.2, application publication date: 2018.09.28). This application discloses a conductive spring, through be equipped with the area of contact of first plane portion and the increase conductive spring of second plane portion and part at the both ends of spring, make conductive spring and part installation stable, contact stable, but the area of contact of the both ends of conductive spring and part is very little originally can not fully improve the stability of spring.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the bad and stability reduction of charging spring contact nature.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a duplicator charge roller conductive spring, including casing and metal spring, metal spring installs in the casing, and helicla flute connection laminating piece is passed through to metal spring's one end, and the other end passes through helicla flute connection regulating part, and regulating part external power supply passes through metal spring and transmits for laminating piece, and laminating piece transmits the power supply for the roller that charges of rotation, and laminating piece and regulating part slide compression metal spring in the inside of casing, and the helicla flute is helical structure, through the part at rotatory metal spring coupling helicla flute place.

Preferably, the inner wall of the first limiting slider laminating shell of the laminating piece slides, a mounting column is fixedly mounted at the circle center of the first limiting slider, a spiral groove is formed between the mounting column and the first limiting block, a hexagonal plane is arranged at the upper end of the mounting column, a laminating block is connected with the spiral groove in the mounting column, an arc concave surface is arranged at the upper end of the laminating block, and the arc concave surface is in a half-wrapping shape relative to the charging roller.

Preferably, the second limiting sliding block of the adjusting part slides along the inner wall of the shell, the circle center of the second limiting sliding block is connected with an adjusting stud through threads, a spiral groove is formed between the adjusting stud and the second limiting sliding block, one end of the adjusting stud is provided with a limiting ring, and two sides of the second limiting sliding block are provided with limiting grooves.

Preferably, the shell is internally provided with symmetrical limiting strips, and two ends of the shell are provided with limiting holes.

Preferably, the mounting column penetrates through the first limiting sliding block and is inserted into the metal spring, and the outer side face of the mounting column is attached to the inner side face of the metal spring.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) The utility model discloses a duplicator charge roller conductive spring, this structure is not changing under metal spring supports the function of pressing to charge roller elasticity, the connected mode through the helicla flute has increased the area of contact with metal spring, through laminating piece and regulating part at the inside slip compression metal spring of casing, has injectd the range of motion that produces deformation when metal spring is compressed, has improved the stability when metal spring is compressed to conductive spring's contact nature and stability have been improved.

Drawings

Fig. 1 is the overall structure schematic diagram of the charging roller conductive spring of the copier of the present invention.

Fig. 2 is a schematic view of a shell structure of a charging roller conductive spring of a copier.

Fig. 3 is a schematic view of the metal spring structure of the charging roller conductive spring of the copier of the present invention.

Fig. 4 is a schematic structural diagram of a mounting post of a charging roller conductive spring of a copier.

Fig. 5 is a schematic structural diagram of an adjusting member of a charging roller conductive spring of a copier.

The reference numerals in the schematic drawings illustrate:

100. a housing; 110. a limiting strip; 120. a limiting hole;

200. a metal spring; 210. a helical groove;

300. fitting parts; 310. a first limiting sliding block; 320. mounting a column; 321. a hexagonal plane; 322. a thread groove; 330. fitting blocks; 331. an arc-shaped concave surface;

400. an adjustment member; 410. a second limiting sliding block; 411. a limiting groove; 420. adjusting the stud; 421. a limit ring.

Detailed Description

In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but which are provided so as to render the disclosure of the invention more thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present; the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Referring to fig. 1 to 5, a conductive spring for a charging roller of a copier according to the present embodiment includes a housing 100 and a metal spring 200, the metal spring 200 is installed in the housing 100, one end of the metal spring 200 is connected to an engaging member 300 through a spiral groove 210, the other end of the metal spring is connected to an adjusting member 400 through a spiral groove 210, an external power source of the adjusting member 400 is transmitted to the engaging member 300 through the metal spring 200, the engaging member 300 transmits the power source to a rotating charging roller, the engaging member 300 and the adjusting member 400 slide inside the housing 100 to compress the metal spring 200, the spiral groove 210 is a spiral structure, the rotating metal spring 200 is connected to the engaging member 210, the engaging member 300 and the adjusting member 400 corresponding to the spiral groove 210 are connected, the engaging member 300 and the adjusting member 400 slide inside the housing 100 to compress the metal spring 200, the power source is connected to the adjusting member 400 through the metal spring 200 to the engaging member 300, and finally reach the charging roller, the structure increases the contact area of the adjusting spring 200 and improves the stability of the metal spring when the metal spring 200 slides and the metal spring 200, and the metal spring 200 slides and the metal spring compression area is increased.

According to the structure design, when the arc concave surface 331 on the attaching block 330 is in half wrapping state with the rotating charging roller for a long time, the abrasion of the arc concave surface 331 is caused, the contact is poor, the hexagonal plane 321 is clamped by a wrench, the mounting column 320 is fixed, the attaching block 330 is rotated, the extending height of the attaching block 330 is adjusted through the thread groove 322, the arc concave surface 331 is attached to the charging roller again, the attaching block 330 is attached to the charging roller under the action of the metal spring 200, the attachment performance of the charging spring and the charging roller is improved, the contact defect caused by the abrasion of the rotating charging roller is solved, the charging roller with the arc concave surface 331 is in half wrapping state, and the stability of the rotating attaching block 330 in half wrapping state of the rotating roller is improved.

The second limiting sliding block 410 of the adjusting part 400 of the embodiment is attached to the inner wall of the shell 100 to slide, the center of the second limiting sliding block 410 is connected with the adjusting stud 420 through threads, a spiral groove 210 is formed between the adjusting stud 420 and the second limiting sliding block 410, a limiting ring 421 is arranged at one end of the adjusting stud 420, and limiting grooves 411 are formed in two sides of the second limiting sliding block 410.

According to the design of the structure, the limiting strips 110 are arranged in the shell 100 symmetrically, the limiting holes 120 are formed in the two ends of the shell 100, the limiting strips 110 are arranged in the limiting grooves 411, the position of the second limiting sliding block 410 is limited through the shell 100, the rotation of the second limiting sliding block 410 is limited, and the adjustment of the elastic potential energy of the metal spring 200 is achieved, the limiting holes 120 are used for limiting the second limiting sliding block 410 and the first limiting sliding block 310 which slide in the shell 100, pre-pressure exists in the metal spring 200, when the arc concave surface 331 is in contact with a charging roller, deformation of the metal spring 200 with the pre-pressure is small, the fit degree is high, and the contact performance of the conductive spring is improved.

The erection column 320 of this embodiment runs through the inside that a spacing slider 310 inserted metal spring 200, the lateral surface of erection column 320 and the medial surface laminating of metal spring 200, the design of this structure, the inside that the erection column 320 runs through a spacing slider 310 and inserts metal spring 200 is in order to increase the inside support to metal spring 200, it is more stable when making metal spring 200 produce deformation, the lateral surface of erection column 320 and the medial surface laminating of metal spring 200 have further increased the area of contact with metal spring 200, because laminating piece 300 direct contact charge roller, the rocking that receives is the strongest, increase and metal spring 200's area of contact, can further improve conductive spring's contact nature.

The above-mentioned embodiments only express a certain implementation manner of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention; therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A copier charge roller conductive spring is characterized in that: including casing (100) and metal spring (200), install in casing (100) metal spring (200), metal spring (200) one end is passed through helicla flute (210) and is connected laminating piece (300), and the other end passes through helicla flute (210) and connects regulating part (400), regulating part (400) external power supply passes through metal spring (200) and transmits for laminating piece (300), laminating piece (300) transmit the power for the rotatory roller that charges, laminating piece (300) and regulating part (400) slide compression metal spring (200) in the inside of casing (100), helicla flute (210) are helical structure, connect the part that helicla flute (210) located through rotatory metal spring (200).

2. The charging roller conductive spring for a copying machine according to claim 1, wherein: the inner wall of a first limiting slider (310) of the fitting piece (300) fitting shell (100) slides, a circle center of the first limiting slider (310) is fixedly mounted with an installation column (320), a spiral groove (210) is formed between the installation column (320) and a first limiting block, a hexagonal plane (321) is arranged at the upper end of the installation column (320), a fitting block (330) is connected with a spiral groove (322) in the installation column (320), an arc concave surface (331) is arranged at the upper end of the fitting block (330), and the arc concave surface (331) is in a half-wrapping shape to a charging roller with rotating rotation.

3. The copier charging roller conductive spring as recited in claim 1, wherein: the inner wall that two (410) laminating casings (100) of spacing slider of regulating part (400) slided, the centre of a circle department of two (410) of spacing slider has adjusting stud (420) through threaded connection, be equipped with helicla flute (210) between adjusting stud (420) and two (410) of spacing slider, the one end of adjusting stud (420) is equipped with spacing ring (421), the both sides of two (410) of spacing slider are equipped with spacing groove (411).

4. The copier charging roller conductive spring as recited in claim 1, wherein: the shell (100) is internally provided with symmetrical limiting strips (110), and two ends of the shell (100) are provided with limiting holes (120).

5. The copier charging roller conductive spring as recited in claim 2, wherein: the mounting column (320) penetrates through the first limiting sliding block (310) and is inserted into the metal spring (200), and the outer side face of the mounting column (320) is attached to the inner side face of the metal spring (200).