CN212827466U

CN212827466U - Paper feeding shaft

Info

Publication number: CN212827466U
Application number: CN202021524589.2U
Authority: CN
Inventors: 黄长峰; 韩行忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-30
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to a paper feed shaft, contain the roller, the outer peripheral face of roller is equipped with the protruding row A of a plurality of rows and protruding row B, protruding row A sets up along the circumference of roller with protruding row B in turn, every row of protruding row A includes the protruding monomer A 'of a plurality of that sets up in the axial of roller, and the interval equals between two adjacent protruding monomer A', every row of protruding row B includes the protruding monomer B 'of a plurality of that sets up in the axial of roller, and the interval equals between two adjacent protruding monomer B', the interval of the protruding row A of two adjacent rows equals, the interval of the protruding row B of two adjacent rows equals, the setting of staggering of protruding monomer A 'of every row and the protruding monomer B' of every row. By adopting the technical scheme, the problem that the concentricity precision of the existing paper feeding shaft is poor is solved. The problems of poor paper feeding size precision, low printing picture quality and the like are caused.

Description

Paper feeding shaft

Technical Field

The utility model relates to a printer field especially indicates a paper feed axle.

Background

The printer is used for printing the computer processing result on paper, and comprises a paper feeding part, wherein the paper feeding part is also called a paper feeding shaft and is a roller shaft with higher requirements on roundness and hardness.

However, in the conventional paper feeding shaft, since a plurality of small hard metal projections are formed on the surface of the paper feeding shaft, a plurality of small hard metal projections are formed on a sleeve, and the sleeve is sleeved on a roller shaft. Due to the manufacturing process, the concentricity of the paper feeding shaft is reduced, the manufacturing process is complex, and the manufacturing cost is high. With the continuity of the printing and paper feeding operation, the accuracy of the paper feeding size is insufficient, resulting in distortion of the screen and the like. Due to the poor concentricity, the surface is gradually worn and unevenly worn, so that the printing result is inclined and cannot be used.

Disclosure of Invention

The utility model aims at: in order to overcome the precision of current paper feed axle size of form advancing, improve the quality of printing the picture, improve life's defect, the utility model provides a paper feed axle.

The technical scheme of the utility model: the utility model provides a paper feed shaft, contains the roller, the outer peripheral face of roller is equipped with protruding row A of a plurality of rows and protruding row B, protruding row A sets up with protruding row B along the circumference of roller in turn, every row of protruding row A includes the protruding monomer A 'of a plurality of that sets up in the axial of roller, and the interval equals between two adjacent protruding monomer A', every row of protruding row B includes the protruding monomer B 'of a plurality of that sets up in the axial of roller, and the interval equals between two adjacent protruding monomer B', the interval of the protruding row A of two adjacent rows equals, the interval of the protruding row B of two adjacent rows equals, the protruding monomer A 'of every row staggers the setting with the protruding monomer B' of every row.

By adopting the technical scheme, when the printer walks printing paper or other printing materials, the distances between the two adjacent rows of the convex rows A are equal, and the distances between the two adjacent convex monomers B ' are equal, so that the printer can more stably walk printing paper or other printing materials without deviation, the convex rows A and the convex rows B are alternately arranged along the circumferential direction of the roller shaft, the density of the convex distribution on the roller shaft is high, when the printer walks printing paper or other printing materials, the number of the convex monomers, which can be contacted with the paper walking shaft, of the printing paper or other printing materials is increased, the paper walking shaft is more attached to the printing paper or other printing materials, and the convex monomers A ' of each row and the convex monomers B ' of each row are staggered to enable the printer to better walk printing paper or other printing materials, printing paper or other printing materials can increase with the amount of the protruding monomers in contact with the paper feeding shaft, and a better paper feeding effect is obtained.

The utility model discloses a further setting again: each protruding monomer A 'comprises a plane and an arc-shaped surface, the plane of each protruding monomer A' is in the same direction, each protruding monomer B 'comprises a plane and an arc-shaped surface, the plane of each protruding monomer B' is in the same direction, and the direction of the plane of each protruding monomer A 'is opposite to the direction of the plane of each protruding monomer A'.

Adopt above-mentioned further setting again, the planar orientation of each protruding monomer A 'is unanimous, and the planar orientation of each protruding monomer B' is unanimous, make printing paper or other contact point number of printing the material increase, make the printer when using, more can be tangible send printing paper or send other printing materials, and the planar orientation of protruding monomer B 'is opposite setting with the planar orientation of protruding monomer A', is when carrying out reciprocating printing in order to realize the printer, the axle of form advancing can be better walk printing paper or other printing materials.

The utility model discloses a further setting again: the height of each single protrusion A 'is equal to the height of each single protrusion B'.

Adopt the aforesaid to further set up again, every protruding monomer can both contradict and beat printing paper or other printing materials, and the axle of form advancing is in reciprocating work and changes under the state for beat the number of contact points on printing paper or other printing materials and increase, obtain the better effect of beating printing paper or other printing materials of walking.

Drawings

FIG. 1 is a block diagram of an embodiment of the present invention;

FIG. 2 is a block diagram of an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 1 according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view of part B in fig. 2 according to an embodiment of the present invention;

fig. 6 is an enlarged schematic view of a portion C in fig. 3 according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that in the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1-6, the utility model discloses a paper feed shaft contains roller 1, in this embodiment, the roller material is metal, roller 1's outer peripheral face is equipped with protruding row A2 and protruding row B3 of a plurality of rows, and protruding row A2 sets up along roller 1's circumference with protruding row B3 in turn, and every row of protruding row A2 includes a plurality of protruding monomer A '21 that sets up along roller 1's the axial, and the interval equals between two adjacent protruding monomer A '21, as in fig. 4, D1 represents the interval between the protruding monomer A' 21.

Each row of the convex rows B3 comprises a plurality of convex single bodies B '31 arranged along the axial direction of the roller shaft 1, and the distance between two adjacent convex single bodies B '31 is equal, as shown in fig. 4, D2 represents the distance between the convex single bodies B ' 31.

The distance between the protrusion rows a2 in two adjacent rows is equal, as shown in fig. 4 and 5 by D3, which indicates the distance between the protrusion rows a 2.

The pitch of the projection rows B3 in two adjacent rows is equal, as shown in fig. 4 and 5 by D4 which indicates the pitch of the projection rows B3.

The protrusion single bodies A '21 and the protrusion single bodies B'31 of each row are arranged in a staggered manner, so that printing paper or other printing materials can contact more protrusion single bodies A 'and more protrusion single bodies B'.

Each protruding monomer A '21 contains a plane 211 and an arcwall face 212, the orientation of each protruding monomer A' 21's plane 211 is unanimous, each monomer B'31 that rises contains a plane 311 and an arcwall face 312, the orientation of each protruding monomer B '31's plane 311 is unanimous, and with the direction of each protruding monomer A '21's plane 211 orientation, when realizing that the printer is carrying out reciprocal printing, printing paper or other printing material can contact more protruding monomer A 'and protruding monomer B', the printing paper or other printing materials of walking that the axle of form advancing can be better.

The height of each protrusion unit a '21 is equal to the height of each protrusion unit B'31, as shown in fig. 6, H1 represents the height of the protrusion unit a '21, H2 represents the height of the protrusion unit B'31, and H1 is equal to H2, so that printing paper or other printing materials can contact more protrusion units a 'and B'.

Claims

1. A paper feed shaft comprises a roller shaft and is characterized in that,

the peripheral surface of the roll shaft is provided with a plurality of rows of convex rows A and convex rows B;

the bulge rows A and the bulge rows B are alternately arranged along the circumferential direction of the roll shaft;

each row of protrusion rows A comprises a plurality of protrusion single bodies A 'arranged along the axial direction of the roll shaft, and the distance between every two adjacent protrusion single bodies A' is equal;

each row of protrusion rows B comprises a plurality of protrusion single bodies B 'arranged in the axial direction of the roll shaft, and the distance between every two adjacent protrusion single bodies B' is equal;

the intervals of the convex rows A of the two adjacent rows are equal;

the intervals of the convex rows B of two adjacent rows are equal;

the convex single bodies A 'of each row are staggered with the convex single bodies B' of each row.

2. A feed beam as recited in claim 1, wherein each of the plurality of convex segments a ' includes a planar surface and an arcuate surface, the planar surfaces of the plurality of convex segments a ' are oriented in a same direction, and each of the plurality of convex segments B ' includes a planar surface and an arcuate surface, the planar surfaces of the plurality of convex segments B ' are oriented in a same direction and opposite to the planar surfaces of the plurality of convex segments a '.

3. A feed beam as claimed in claim 1 or 2, wherein the height of each projection unit a 'is equal to the height of each projection unit B'.