CN220662027U - Printing roller structure of printing machine - Google Patents

Abstract

The utility model discloses a printing roller structure of a printer, wherein the printing roller structure of the printer is arranged on a frame of the printer, the frame is provided with a job inlet and a paper outlet, the printing roller structure of the printer comprises a cleaning assembly, an inking roller assembly and a hot-pressing roller assembly which are sequentially arranged along the direction from the paper inlet to the paper outlet, the inking roller assembly comprises a charging roller, a photosensitive roller, a developing roller and a transfer roller which are rotationally connected with the frame, the charging roller, the photosensitive roller and the transfer roller are sequentially arranged at intervals along the height direction of the frame, the developing roller and the photosensitive roller are sequentially arranged adjacently along the direction from the paper inlet to the paper outlet, and the cleaning assembly is correspondingly arranged on the developing roller. The technical scheme of the utility model aims to improve the printing quality of the printer.

Description

Printing roller structure of printing machine

Technical Field

The utility model relates to the technical field of printing equipment, in particular to a printing roller structure of a printing machine.

Background

The printer is one of the output devices of the computer, and is used for printing the computer processing result on the paper, and the processing result needs to be clearly reflected on the surface of the paper, so that the printed paper becomes an effective information medium, but the paper printed by the existing printer is easy to have the situations of halation, ink blurring and the like, thereby influencing the quality of information transmission, so that a printer capable of realizing high-quality printing effect is needed to solve the problems.

Disclosure of Invention

The utility model mainly aims to provide a printing roller structure of a printing machine, which aims to improve the printing quality of the printing machine.

In order to achieve the above purpose, the printing roller structure of the printing machine provided by the utility model is arranged on a frame of the printing machine, and the frame is provided with a paper inlet and a paper outlet; the printing roller structure of the printing machine comprises a cleaning assembly, an inking roller assembly and a hot-pressing roller assembly, wherein the cleaning assembly, the inking roller assembly and the hot-pressing roller assembly are sequentially arranged along the paper inlet to the paper outlet, the inking roller assembly comprises a charging roller, a photosensitive roller, a developing roller and a transfer roller which are rotationally connected with the frame, the charging roller, the photosensitive roller and the transfer roller are sequentially arranged at intervals along the height direction of the frame, the developing roller and the photosensitive roller are sequentially arranged adjacently along the paper inlet to the paper outlet, and the cleaning assembly corresponds to the developing roller.

Optionally, the cleaning assembly includes a sponge roller rotatably connected to the frame and abutting the developing roller.

Optionally, the cleaning assembly further includes an elastic scraper connected to the frame, the elastic scraper is disposed against the developing roller, and a length direction of the elastic scraper is parallel to a shaft direction of the developing roller.

Optionally, the outer surface of the photosensitive roller is covered with a light-transmitting protective layer.

Optionally, the light-transmitting protective layer is configured as a PET film.

Optionally, the hot pressing roller assembly comprises a heating roller and a squeeze roller rotatably connected with the frame, wherein the heating roller and the squeeze roller are used for hot pressing the paper and conveying the paper to the paper outlet.

Optionally, the printing roller structure of the printing machine is further provided with a spacing adjusting assembly, and the spacing adjusting assembly is installed on the frame and used for adjusting the spacing between the heating roller and the extruding roller.

Optionally, the squeeze roll surface is provided with an anti-slip structure.

Optionally, the printing roller structure of the printing machine is further provided with a pressure sensor, the pressure sensor is used for detecting a pressure value between the heating roller and the squeeze roller, and when the pressure value exceeds a pressure threshold value, the distance between the heating roller and the squeeze roller is adjusted through the distance adjusting assembly.

Optionally, the interval adjustment subassembly is equipped with operation knob, first rack and second rack, operation knob be equipped with first rack the gear of second rack looks rotation meshing, first rack the second rack set up relatively in operation knob's both sides, first rack is connected the roller of heating roller, the second rack is connected the roller of squeeze roller, when rotating operation knob, first rack with dislocation relatively removes between the second rack, in order to drive the heating roller with squeeze roller is close to relatively or keep away from relatively.

According to the technical scheme, the cleaning assembly is additionally arranged on the printing roller structure of the printer, so that the excessive toner on the developing roller is cleaned in time, the situation that the excessive toner is attached to paper is reduced, the printed paper printed by the printer can clearly show the printing information, the situations that the ink marks on the paper are dizziness, the ink marks are blurred and the like are reduced, and the printing quality of the printer is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a printer embodiment incorporating the printing cylinder structure of the present utility model;

FIG. 2 is a schematic illustration of the construction of the printing cylinder of the embodiment of FIG. 1;

FIG. 3 is a schematic view of the operation knob shown in FIG. 1;

fig. 4 is a schematic illustration of the connection between the spacing adjustment assembly and the heated platen assembly of fig. 1.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Rack	320	Squeeze roll
11	Paper inlet	330	Pressure sensor
				12	Paper outlet	400	Spacing adjustment assembly
20	Transport path	410	Operation knob
				110	Charging roller	411	Engagement portion
120	Photosensitive roller	4111	Driving tooth
				130	Transfer roller	412	Operation part
140	Developing roller	420	First rack
				210	Sponge roller	421	First driven tooth
220	Elastic scraper	430	Second rack
				310	Heating roller	431	Second driven tooth

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in abutment, or in communication between two elements or in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a printing roller structure of a printing machine.

Referring to fig. 1 to 4, in an embodiment of the present utility model, a printing cylinder structure of a printing machine is mounted on a frame 10 of the printing machine, the frame 10 is provided with a paper inlet 11 and a paper outlet 12, and paper enters from the paper inlet 11 and leaves from the paper outlet 12; the printing roller structure of the printing machine comprises a cleaning assembly, an inking roller assembly and a hot-pressing roller assembly which are sequentially arranged along the direction from the paper inlet 11 to the paper outlet 12, wherein the inking roller assembly comprises a charging roller 110, a photosensitive roller 120, a developing roller 140 and a transfer roller 130 which are rotationally connected with the frame 10, the charging roller 110, the photosensitive roller 120 and the transfer roller 130 are sequentially arranged at intervals along the height direction of the frame 10, the developing roller 140 and the photosensitive roller 120 are sequentially arranged adjacently along the direction from the paper inlet 11 to the paper outlet 12, and the cleaning assembly corresponds to the developing roller.

Specifically, referring to fig. 4, a sheet enters the frame 10 from the paper inlet 11, and on the transport path 20 of the sheet, the sheet passes through the inking roller assembly to make the toner adhere to the sheet, then passes through the hot pressing roller assembly, the toner is fixed on the surface of the sheet through the hot pressing action, and then the sheet leaves from the paper outlet 12.

Referring to fig. 2, it should also be appreciated that the inking roller assembly is primarily used to carry toner particles during operation of the printer so that the toner particles can adhere to the surface of the paper. In detail, the surface of the charging roller 110 is distributed with negative charges in the operation of the printer, the photosensitive roller 120 is correspondingly formed with negative charges on the surface thereof under the influence of the charges of the charging roller 110, and then, the photosensitive roller 120 is changed into positive charges on the surface thereof by the laser action of the printer, at this time, toner particles in a negative charge state carried by the developing roller 140 move along with the developing roller 140, and part of the toner particles can be correspondingly adsorbed on the positive charges on the surface of the photosensitive roller 120; the surface of the transfer roller 130 is in a negative charge state, and toner particles are separated from the surface of the photosensitive roller 120 and attached to the paper by suction force of negative charges during the paper passing through the photosensitive roller 120 and the transfer roller 130.

It should be noted that the toner container is provided corresponding to the developing roller 140, and toner particles move from the toner container to the developing roller 140 and can move with the developing roller 140 when the printer is in operation.

The cleaning component is configured to clean the developing roller 140, when the developing roller 140 completes a rotation period, the residual toner particles on the developing roller 140, which are not adsorbed on the surface of the photosensitive roller 120, can be timely removed by the cleaning component, so that the residual toner particles cannot enter the rotation period of the next developing roller 140, and a positive charge on the surface of the photosensitive roller 120 can correspondingly adsorb a toner particle, so that the effect of the depth of the printed paper can be consistent with the printing information, the printing quality of the printer is improved, and the printed paper can clearly and accurately display the information printed by the printer.

According to the technical scheme, the cleaning assembly is additionally arranged on the printing roller structure of the printer, so that the excessive toner on the developing roller 140 is cleaned in time, and the situation that the excessive toner is attached to paper is reduced, so that the printed paper printed by the printer can clearly show the printing information, the situations that the ink marks on the paper are dizziness, the ink marks are blurred and the like are reduced, and the printing quality of the printer is further improved.

Alternatively, the cleaning assembly includes a sponge roller 210 rotatably coupled to the frame 10 and abutting the developing roller 140.

Specifically, referring to fig. 2, the sponge roller 210 is configured to clean the developing roller 140 to sweep off the toner particles attached to the developing roller 140, so that the excessive toner particles on the developing roller 140 in the previous rotation period can leave the developing roller 140 before the developing roller 140 enters the next rotation period, and the situation that the excessive toner particles are attached to the paper is reduced during the subsequent printing operation, thereby improving the printing effect of the printer.

Further, the cleaning assembly further includes an elastic scraper 220 connected to the frame 10, the elastic scraper 220 is disposed against the developing roller 140, where the length direction of the elastic scraper 220 is parallel to the cylinder axis direction of the developing roller 140, so that the elastic scraper 220 can further clean the redundant toner particles on the surface of the developing roller 140, and the printing effect of the printer is improved to a certain extent.

It should be noted that, the elastic scraper 220 in the above embodiment can reduce scratch damage to the developing roller 140, and prolong the service life of the developing roller 140 to some extent.

In other embodiments, the cleaning assembly is provided with a plurality of sponge rollers 210 to achieve multi-angle cleaning of the developing roller 140.

Optionally, the outer surface of the photosensitive roller 120 is covered with a light-transmitting protective layer to protect the photosensitive layer of the photosensitive roller 120. When the photosensitive roller 120 rolls, the photosensitive layer is isolated from the outside, so that the damage probability of the photosensitive layer is reduced, the service life of the photosensitive roller 120 is prolonged, the service life of the printer is prolonged, and the maintenance cost of the printer is reduced.

Further, the light-transmitting protective layer is configured as a PET film, and the PET film is a transparent and flexible plastic film material, has good wear resistance and chemical resistance, and is easy to process and apply; and the PET film can effectively protect the photosensitive roll 120 while allowing light to be transmitted to maintain the definition and brightness of an image.

In other embodiments, the transparent protective layer is configured as silica gel.

Alternatively, the heat roller assembly includes a heat roller 310 and a pressing roller 320 rotatably coupled to the frame 10, the heat roller 310 and the pressing roller 320 being configured to heat-press the paper and transfer the paper to the paper outlet 12, such that toner particles attached to the surface of the paper are stably attached to the surface of the paper by the heat pressing action of the heat roller 310 and the pressing roller 320.

Further, the printing roller structure of the printing press is further provided with a spacing adjustment assembly 400, and the spacing adjustment assembly 400 is installed on the frame 10 to adjust the spacing between the heating roller 310 and the squeeze roller 320. Specifically, because the interval of squeeze roller 320 and hot press roller has the influence to the hot pressing effect of paper, the too big adhesion stability that can influence the ink body granule on the paper of two interval, printing problems such as card paper, drag trace can appear in two interval undersize, through setting up interval adjustment assembly 400 to can adjust the interval of squeeze roller 320 and hot press roller, make both interval moderate, and then promoted the printing effect of printing machine.

Optionally, the surface of the squeeze roller 320 is provided with an anti-slip structure, so that during the hot pressing process of the paper, the friction between the paper and the squeeze roller 320 is enhanced, the slippage between the paper and the squeeze roller 320 is reduced, and the toner particles can relatively and statically move with the paper, thereby ensuring the printing effect of the paper.

The surface of the squeeze roller 320 may be provided with anti-slip patterns or anti-slip layers to improve the anti-slip effect of the squeeze roller 320.

Further, the printing roller structure of the printing machine is further provided with a pressure sensor 330, the pressure sensor 330 is configured to detect a pressure value between the heating roller 310 and the pressing roller 320, when the pressure value exceeds a pressure threshold, the distance between the heating roller 310 and the pressing roller 320 is adjusted by the distance adjusting assembly 400, so that a user or equipment can timely respond by pressure value information transmitted by the pressure sensor 330, and correspondingly adjust the distance between the heating roller 310 and the pressing roller 320 by the distance adjusting assembly 400, so that damage caused by mutual pressing between the heating roller and the pressing roller 320 is reduced, the service life of the printing machine is prolonged, and the maintenance cost of the printing machine is reduced.

It should be understood that the pressure threshold may be set according to the material, the size, etc. of the heating roller 310 and the pressing roller 320, and the pressure threshold specifically refers to a maximum pressure value that the heating roller 310 and/or the pressing roller 320 can bear, and when the pressure value between the heating roller 310 and the pressing roller 320 is the pressure threshold, neither the heating roller 310 nor the pressing roller 320 is physically deformed.

Further, referring to fig. 4, the space adjusting assembly 400 is provided with an operation knob 410, a first rack 420 and a second rack 430, the operation knob 410 is provided with gears rotatably engaged with the first rack 420 and the second rack 430, the first rack 420 and the second rack 430 are oppositely disposed at two sides of the operation knob 410, the first rack 420 is connected with a roller shaft of the heating roller 310, the second rack 430 is connected with a roller shaft of the pressing roller 320, and when the operation knob 410 is rotated, the first rack 420 and the second rack 430 are relatively moved in a dislocation manner so as to drive the heating roller 310 and the pressing roller 320 to be relatively close to or relatively far away from each other.

For convenience of the following description, the gear of the operation knob 410 is named as a driving tooth 4111, the gear of the first rack 420 is named as a first driven tooth 421, and the gear of the second rack 430 is named as a second driven tooth 431.

Specifically, when the user rotates the operation knob 410, the driving teeth 4111 of the operation knob 410 and the first driving teeth 4111 and the second driving teeth 4111 are engaged with each other to drive the first rack 420 and the second rack 430 to move in a dislocation manner, in fig. 4, when the operation knob 410 rotates clockwise in the drawing, the first rack 420 moves up, the second rack 430 moves down, and the heating roller 310 and the pressing roller 320 are relatively far away; when the operation knob 410 is rotated in the counterclockwise direction in the drawing, the first rack 420 moves downward and the second rack 430 moves upward, and the heating roller 310 and the pressing roller 320 are relatively close, so that the adjustment of the distance between the pressing roller 320 and the heat pressing roller is achieved.

Further, referring to fig. 1 and 3, the frame 10 is provided with a through hole for installing the operation knob 410, the operation knob 410 is provided with an operation portion 412 and a meshing portion 411 which are connected, the driving teeth 4111 are distributed at the periphery of the meshing portion 411, wherein the operation portion 412 is exposed outside the frame 10, the meshing portion 411 is disposed inside the frame 10 and is connected with the first rack 420 and the second rack 430, and when the user rotates the operation portion 412, the meshing portion 411 rotates to drive the first rack 420 and the second rack 430 to move in a dislocation manner, so that the adjustment of the space between the heating roller 310 and the pressing roller 320 is realized.

The utility model also provides a printer, which comprises a frame 10, a motor and a printing roller structure of the printer, wherein the specific structure of the printing roller structure of the printer refers to the embodiment, and the printer adopts all the technical schemes of all the embodiments, so that the printer at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated here. Wherein, the motor is located the frame 10 is inboard, clean subassembly inking roller subassembly with the hot pressing roller subassembly is all drive connection the motor, when the printing machine is in the operational mode, motor drive clean subassembly, inking roller subassembly and hot pressing roller subassembly operation to accomplish the print job to the printed matter.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. The utility model provides a printing roller structure of printing machine installs in the frame of printing machine, the frame is equipped with into paper mouth and paper outlet, its characterized in that, printing roller structure of printing machine includes:

the cleaning assembly, the inking roller assembly and the hot-pressing roller assembly are sequentially arranged along the paper inlet to the paper outlet, the inking roller assembly comprises a charging roller, a photosensitive roller, a developing roller and a transfer roller which are rotationally connected with the frame, the charging roller, the photosensitive roller and the transfer roller are sequentially arranged at intervals along the height direction of the frame, the developing roller and the photosensitive roller are sequentially arranged adjacently along the paper inlet to the paper outlet, and the cleaning assembly corresponds to the developing roller.

2. The printing cylinder structure of the printer of claim 1, wherein the cleaning assembly includes a sponge roller rotatably coupled to the frame and abutting the developer roller.

3. The printing cylinder structure of the printer of claim 2, wherein the cleaning assembly further comprises an elastic blade connected to the frame, the elastic blade being disposed against the developing roller, wherein a length direction of the elastic blade is parallel to a cylinder axis direction of the developing roller.

4. The printing cylinder structure of the printer according to claim 2, wherein an outer surface of the photosensitive roller is covered with a light-transmitting protective layer.

5. The printing cylinder structure of the printer of claim 4, wherein the light-transmitting protective layer is configured as a PET film.

6. The printing cylinder structure of any one of claims 1 to 5, wherein the thermo-compression cylinder assembly includes a heating roller and a pressing roller rotatably connected to the frame, the heating roller and the pressing roller being configured to thermo-compress a sheet and to convey the sheet to the sheet outlet.

7. The printing cylinder structure of the printing press as recited in claim 6 wherein the printing cylinder structure of the printing press is further provided with a spacing adjustment assembly mounted to the frame for adjusting the spacing of the heating roller and the pressing roller.

8. The printing cylinder structure of the printer as claimed in claim 6, wherein the squeeze roller surface is provided with an anti-slip structure.

9. The printing cylinder structure of the printing press as recited in claim 7, wherein the printing cylinder structure of the printing press is further provided with a pressure sensor for detecting a pressure value between the heating roller and the pressing roller, and when the pressure value exceeds a pressure threshold value, a distance between the heating roller and the pressing roller is adjusted by the distance adjusting assembly.

10. The printing roller structure of claim 7, wherein the distance adjusting assembly is provided with an operation knob, a first rack and a second rack, the operation knob is provided with gears which are in rotary engagement with the first rack and the second rack, the first rack and the second rack are oppositely arranged at two sides of the operation knob, the first rack is connected with a roller shaft of the heating roller, the second rack is connected with a roller shaft of the extruding roller, and when the operation knob is rotated, the first rack and the second rack are relatively moved in a dislocation manner so as to drive the heating roller and the extruding roller to be relatively close to or relatively far away from each other.