CN213876322U

CN213876322U - Long-life charging roller

Info

Publication number: CN213876322U
Application number: CN202023253540.0U
Authority: CN
Inventors: 蒋松林; 陈红; 赵超飞
Original assignee: Huaian Xinmeida Precision Technology Co ltd
Current assignee: Huaian Xinmeida Precision Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-03
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to a charge roller technical field, especially be a long-life charge roller, including conductive nylon sleeve pipe and roller, the outside fixedly connected with foaming conductive sponge layer in the center of the roller, the outside fixedly connected with conductive nylon sleeve pipe of foaming conductive sponge layer, the foaming conductive sponge layer left and right sides is equipped with the screw thread of seting up in the roller outside, the roller has a screw thread section of thick bamboo through screw thread spiral connection, the screw thread section of thick bamboo outside all fixedly connected with solid fixed ring, the inboard fixedly connected with buffer layer of solid fixed ring; the utility model discloses in, through the roller that sets up, solid fixed ring, screw thread, buffer layer and a screw thread section of thick bamboo, solid fixed ring inboard conductive nylon sleeve pipe and the electrically conductive sponge layer of foaming leave certain space with the buffer layer, make it can take place the inflation in the certain limit, but solid fixed ring still carries out spacing purpose to it, and then guarantees that conductive nylon sleeve pipe and electrically conductive sponge layer of foaming and roller are difficult for taking place relative displacement, guarantees its life.

Description

Long-life charging roller

Technical Field

The utility model relates to a charge roller technical field specifically is a long-life charge roller.

Background

The last roller that charges that uses of printing apparatus is responsible for and rotates with the contact of sensitization drum, make the sensitization drum evenly charge, produce the electrostatic latent image after the exposure, the structure of the roller that charges from inside to outside layer is a roller foaming conductive sponge layer-conductive nylon sleeve pipe, can extend to both sides after current foaming conductive sponge layer both ends are used for a long time, traditional solution adopts and is equipped with annular separation blade at foaming wire sponge layer both ends, restrict the inflation on its foaming sponge layer, but use its foaming sponge layer for a long time and can take place deformation to the outside, cause the roller that charges whole deformation, the roller drops with foaming conductive sponge layer easily, lead to charging and be heated inhomogeneous, finally influence the printing effect, therefore, a high life roller that charges is proposed to the above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high life roller that charges to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a high life roller that charges, includes conductive nylon sleeve pipe and roller, the roller central authorities outside fixedly connected with electrically conductive sponge layer of foaming, the electrically conductive nylon sleeve pipe of the electrically conductive sponge layer outside fixedly connected with of foaming, the electrically conductive sponge layer left and right sides of foaming is equipped with the screw thread of seting up in the roller outside, the roller has a screw thread section of thick bamboo through screw thread screwed connection, the solid fixed ring of the equal fixedly connected with in screw thread section of thick bamboo outside, the inboard fixedly connected with buffer layer of solid fixed ring.

Preferably, the roller shaft is internally provided with a groove, an expansion spring is arranged in the groove, one end of the expansion spring is fixedly connected with the roller shaft, the other end of the expansion spring is fixedly connected with a clamping block, and the outer side of the clamping block is connected with the roller shaft in a sliding manner.

Preferably, the internal diameter of the fixing ring is the same as the external diameter of the conductive nylon sleeve, and the inner side of the fixing ring is in close contact with the conductive nylon sleeve.

Preferably, the number of the thread cylinders is two, the thread cylinders are symmetrically arranged on the left and right sides of the center of the conductive nylon sleeve, the thread cylinders are arranged in a cylinder shape, the buffer layer is arranged in an annular shape, and the buffer layer is made of high-temperature-resistant NBR nitrile rubber.

Preferably, the distance between the left end and the right end of the conductive nylon sleeve and the buffer layer is 0.5cm, and the lengths of the conductive nylon sleeve and the foamed conductive sponge layer are consistent.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, through the arranged roller shaft, the fixing ring, the thread, the buffer layer and the thread cylinder, a certain gap is reserved between the conductive nylon sleeve and the foamed conductive sponge layer on the inner side of the fixing ring and the buffer layer, so that the conductive nylon sleeve and the foamed conductive sponge layer can expand in a certain range, but the fixing ring still performs the purpose of limiting the conductive nylon sleeve and the foamed conductive sponge layer, thereby ensuring that the conductive nylon sleeve and the foamed conductive sponge layer are not easy to generate relative displacement with the roller shaft, and ensuring the service life of the conductive nylon sleeve and the foamed conductive sponge layer;

2. the utility model discloses in, through fixture block and the expanding spring who sets up, the fixture block upwards removes under expanding spring's effect, and then can play spacing purpose to solid fixed ring, avoids it to take place to break away from with the roller privately, guarantees that it can normal use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial sectional view of the present invention.

In the figure: the elastic conductive foam rubber comprises, by weight, 1-a conductive nylon sleeve, 2-a roller shaft, 3-a fixing ring, 4-a thread, 5-a buffer layer, 6-a thread cylinder, 7-a fixture block, 8-a telescopic spring and 9-a foamed conductive sponge layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a high life roller that charges, including conductive nylon sleeve pipe 1 and

roller

2, 2 central outside fixedly connected with foaming conductive sponge layer 9 of roller, 9 outside fixedly connected with conductive nylon sleeve pipes 1 of foaming conductive sponge layer, the 9 left and right sides on foaming conductive sponge layer are equipped with screw thread 4 of seting up in the 2 outside of roller, roller 2 has a screw thread section of thick bamboo 6 through 4 threaded connection of screw thread, screw thread 4 plays the purpose of linking together roller 2 and screw thread section of

thick bamboo

6, 6 equal fixedly connected with solid fixed ring 3 in the outside of the screw thread section of thick bamboo, 3 inboard fixedly connected with buffer layer 5 of solid fixed ring.

The roller shaft 2 is internally provided with grooves, the grooves are internally provided with expansion springs 8, one ends of the expansion springs 8 are fixedly connected with the roller shaft 2, the other ends of the expansion springs 8 are fixedly connected with clamping blocks 7, the outer sides of the clamping blocks 7 are in sliding connection with the roller shaft 2, the clamping blocks 7 play a role in limiting the fixed ring 3 and avoiding displacement of the fixed ring, the inner diameter of the fixed ring 3 is the same as the outer diameter of the conductive nylon sleeve 1, the inner side of the fixed ring 3 is in close contact with the conductive nylon sleeve 1, the purpose of limiting the conductive nylon sleeve is achieved by the arrangement, the nylon sleeve 1 is prevented from being separated from the roller shaft 2, the number of the thread cylinders 6 is two, the thread cylinders 6 are arranged in bilateral symmetry relative to the center of the conductive nylon sleeve 1, the thread cylinders 6 are arranged in a cylindrical shape, the buffer layer 5 is arranged in an annular shape, the buffer layer 5 is made of high-temperature-resistant NBR, the material has a good high-temperature-resistant effect, the high-temperature-resistant NBR is up to 300 ℃, both ends are 0.5cm with the interval of buffer layer 5 about electrically conductive nylon sleeve pipe 1, and this kind of setting makes it have certain buffering guard action, even electrically conductive nylon sleeve pipe 1 takes place the inflation with the electrically conductive sponge layer of foaming 9, and it leaves the space and can make it remove, avoids being extrudeed and warp, leads to out of use, and electrically conductive nylon sleeve pipe 1 and the electrically conductive sponge layer of foaming 9 length are unanimous, and it has the guard action to this kind of setting assurance, guarantees its normal use.

The working process is as follows: when using, roller 2 charges the heating, its conductive nylon sleeve pipe 1 takes place the inflation with the conductive sponge layer of foaming 9, because the conductive nylon sleeve pipe 1 and the conductive sponge layer of foaming 9 of solid fixed ring 3 inboard leave certain space with buffer layer 5, make it can take place the inflation in the certain limit, but solid fixed ring 3 still carries out spacing purpose to it, and then guarantee that conductive nylon sleeve pipe 1 and the conductive sponge layer of foaming 9 are difficult for taking place relative displacement with roller 2, guarantee its life, fixture block 7 upwards removes under expanding spring 8's effect, and then can play spacing purpose to solid fixed ring 3, avoid it to break away from privately with roller 2 takes place, guarantee that it can normal use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high life roller that charges, includes electrically conductive nylon sleeve pipe (1) and roller axle (2), its characterized in that: roller (2) central authorities outside fixedly connected with foaming conductive sponge layer (9), foaming conductive sponge layer (9) outside fixedly connected with conductive nylon sleeve pipe (1), the foaming conductive sponge layer (9) left and right sides is equipped with screw thread (4) of seting up in the roller (2) outside, roller (2) have a screw thread section of thick bamboo (6) through screw thread (4) screwed connection, the solid fixed ring (3) of equal fixedly connected with in screw thread section of thick bamboo (6) outside, gu fixed ring (3) inboard fixedly connected with buffer layer (5).

2. A long-life charging roller according to claim 1, characterized in that: the roller shaft (2) is internally provided with a groove, an expansion spring (8) is arranged in the groove, one end of the expansion spring (8) is fixedly connected with the roller shaft (2), the other end of the expansion spring (8) is fixedly connected with a clamping block (7), and the outer side of the clamping block (7) is in sliding connection with the roller shaft (2).

3. A long-life charging roller according to claim 1, characterized in that: the inner diameter of the fixing ring (3) is the same as the outer diameter of the conductive nylon sleeve (1), and the inner side of the fixing ring (3) is in close contact with the conductive nylon sleeve (1).

4. A long-life charging roller according to claim 1, characterized in that: the number of the thread cylinders (6) is two, the thread cylinders (6) are arranged in a bilateral symmetry mode about the center of the conductive nylon sleeve (1), the thread cylinders (6) are arranged in a cylindrical mode, the buffer layer (5) is arranged in an annular mode, and the buffer layer (5) is made of high-temperature-resistant NBR nitrile rubber.

5. A long-life charging roller according to claim 1, characterized in that: the distance between the left end and the right end of the conductive nylon sleeve (1) and the buffer layer (5) is 0.5cm, and the lengths of the conductive nylon sleeve (1) and the foamed conductive sponge layer (9) are consistent.