CN215204140U - Anti-sticking paper printing mechanism and printer - Google Patents

Abstract

The utility model relates to the technical field of printers, in particular to a release paper printing mechanism and a printer, wherein the release paper printing mechanism comprises a printer body, a power assembly and a rubber roller, wherein the printer body is provided with an elongated slot; the power assembly is arranged on the printer body; the rubber roller is rotatably arranged in the long groove and is driven by the power part; the medium can be dragged towards the paper feeding direction when the rubber roller rotates forwards, the medium can be dragged towards the paper withdrawing direction when the rubber roller rotates reversely, and when the rubber roller rotates forwards and reversely, the rubber roller is transferred from the first end of the long groove to the second end of the long groove. The utility model discloses well antiseized paper printing mechanism is through setting up the rubber roll in the elongated slot, when the rubber roll reversal, can drag the medium of rubber roll below to the paper direction of moving back, shifts to the second end of elongated slot by the first end of elongated slot simultaneously, removes the process, and the contact position of rubber roll and medium changes, is favorable to making the medium and beating printer head and break away from.

Description

Anti-sticking paper printing mechanism and printer

Technical Field

The utility model relates to a printer technical field especially relates to an antiseized paper printing mechanism and printer.

Background

The thermal printer is provided with a thermal printing head, a rubber roller driving motor, a driving gear, a rubber roller and the like, and the rubber roller drives a medium (thermal paper or a color ribbon) to pass through the thermal printing head for printing.

The thermal printing head is provided with a ceramic substrate, a PCB circuit board and a drive IC, wherein the ceramic substrate is provided with a heating resistor body, and the heating resistor body selectively heats the part of the medium, which is connected with the printing head, so that the color of the part is developed in the printing process, thereby realizing printing.

The heating body is easy to adhere to the medium under the influence of the quality of the medium and the torque force of the motor after being cooled, the adhesion is possibly serious along with the prolonging of the placing time, and the medium cannot be separated from the printing head even if the rubber roller rotates during the next printing, so that the next initial printing is influenced.

In order to overcome the problem of sticking paper, the following means are adopted in the prior art to solve the problem:

the patent application with publication number CN211138656U discloses a bottomless paper surface single printer based on a double-drive structure, which comprises a double-drive transmission mechanism, wherein the double-drive transmission mechanism consists of a motor gear, a reduction gear and a reversing gear set, the motor gear is connected to a motor, the motor gear is meshed and connected to the reduction gear, the reduction gear is meshed and connected to the reversing gear set, the front side of the reversing gear set is meshed and connected to a rubber roll gear, and the rear side of the reversing gear set is meshed and connected to a rear-drive device gear. The back-driving pinch roller is arranged above the back-driving device, printing transmission is realized through a motor, the back-driving transmission is driven at the same time, synchronous driving is achieved, printing is carried out while feeding and retreating are carried out, and the functions of no paper sticking and smooth paper feeding are achieved.

The patent application with publication number CN207579359U discloses a portable printer paper bin capable of printing labels without backing paper, which is characterized in that a layer of anti-sticking smooth material is arranged on the paper bin, a rough granular structure is arranged on the surface of a paper guide shaft, and a layer of anti-sticking material is coated on a rubber roller; this can better ensure the printing process of the label without the backing paper.

Patent application publication No. CN205467956U discloses a technique for effectively reducing the contact area between a guide rail and a sheet by arranging protruding ribs on the guide rail, and preventing the back glue of the sheet from sticking to the guide rail.

The patent application with publication number JP2013049146A discloses a technology, in the process of carrying, more grooves are arranged on a rotating shaft around which label paper rotates along the circumferential direction, the contact area rate is set to be more than or equal to 60% and less than or equal to 80% and Sx is set to achieve the anti-sticking effect.

The patent application with publication number CN201573390U discloses a technique, in which a dam is disposed on a protective film on the paper outlet side of a thermal print head, a rubber roller loaded on the thermal printer presses thermal paper to contact with a protective layer on a heating resistor, the rubber roller presses the thermal paper to contact with the dam layer, the thermal paper also receives driving friction and retarding friction at the dam layer, but there is no resistance heating element at the dam layer, the protective coating of the thermal paper will not be melted and solidified, so the driving friction at the dam layer is always greater than the retarding friction, even when the thermal print head prints heat, the total driving friction received by the thermal paper may be greater than the total retarding friction received by the thermal paper, so that the thermal paper smoothly slides past the thermal print head without printing sticky paper.

As is known from the above documents, the prior art methods prevent sticking or by using an anti-sticking material in the paper path; or preventing sticking by reducing the contact area of the sheet with the passage; or to improve the adhesion by enhancing the driving force of the motor to the paper. However, these methods cannot effectively solve the problem of the adhesion of the rubber roller to the medium when the printing is started after the printing is stopped, especially the serious adhesion caused by long-time shutdown.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a antiseized paper printing mechanism and printer to medium and the problem of beating the printer head adhesion when solving among the prior art printer restart.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, the utility model provides a release paper printing mechanism, this release paper printing mechanism includes:

the printer comprises a printer body, wherein the printer body is provided with a long groove;

the power assembly is arranged on the printer body;

the rubber roller is rotatably arranged in the long groove and is driven by the power assembly; the medium is dragged towards the paper outlet direction when the rubber roller rotates forwards, the medium can be dragged towards the paper outlet direction when the rubber roller rotates reversely, and when the rubber roller rotates forwards and rotates reversely, the rubber roller is transferred from the first end of the long groove to the second end of the long groove.

As a preferred scheme of the anti-sticking paper printing mechanism, the power assembly comprises a driving gear, and one end of the rubber roller is provided with a driven gear; the driving gear is in meshed transmission with the driven gear, and the long groove is an arc-shaped groove.

As a preferable scheme of the anti-sticking paper printing mechanism, the first end of the arc-shaped groove is located on a connecting line between the driving gear and a heating wire of the printing head, and the second end of the arc-shaped groove is located on a paper feeding side of the first end.

As a preferred scheme of the anti-sticking paper printing mechanism, the included angle between the connecting line of the driving gear and the first end of the arc-shaped groove and the connecting line between the driving gear and the heating wire of the printing head is +/-2 degrees.

As a preferable aspect of the release paper printing mechanism, the release paper printing mechanism further includes a heating member for heating the printing head.

As a preferred scheme of the anti-sticking paper printing mechanism, the heating member is an electric heating wire, and the electric heating wire is arranged on the peripheral side of the printing head.

As a preferred scheme of antiseized paper print mechanism, the heating member is the electrical heating stick, the heating stick is located the week side of beating printer head.

As a preferred scheme of the release paper printing mechanism, the heating member is a heating sheet, and the heating sheet is disposed on the peripheral side of the printing head.

On the other hand, the utility model provides a printer, including the antiseized paper printing mechanism in any one of the above-mentioned scheme.

The utility model has the advantages that:

the utility model provides a antiseized paper printing mechanism and printer, this antiseized paper printing mechanism can drag the medium of rubber roll below to the paper direction of moving back through setting up the rubber roll in the elongated slot when the rubber roll reverses, and the rubber roll shifts to the second end of elongated slot by the first end of elongated slot, removes the process, and the contact position of rubber roll and medium changes, and the medium breaks away from with beating printer head when being favorable to the printer restart. Additionally, the utility model discloses do not increase unnecessary spare part, the structure is ingenious, and is with low costs.

Drawings

FIG. 1 is a schematic structural view of a release paper printing mechanism in an embodiment of the present invention;

fig. 2 is the embodiment of the utility model provides an in the embodiment anti-sticking paper print mechanism structure schematic diagram of paper state of returning.

In the figure:

1. a printer body; 11. an arc-shaped slot;

2. a driving gear;

3. a rubber roller; 31. a driven gear;

4. paper;

5. a printhead.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides a release paper printing mechanism, which includes a printer body 1, a power assembly and a rubber roller 3, wherein the printer body 1 is provided with a long slot; the power assembly is arranged on the printer body 1; the rubber roller 3 is rotatably arranged in the long groove and is driven by the power assembly; when the rubber roller 3 rotates forwards, the medium can be driven to move forwards to drag the medium to the paper feeding direction, when the rubber roller 3 rotates backwards, the medium can be driven to move backwards to drag the medium to the paper withdrawing direction, and when the rubber roller 3 rotates forwards and is switched to rotate backwards, the rubber roller 3 can be transferred from the first end of the long groove to the second end of the long groove.

In this embodiment, the anti-sticking printing mechanism drags the medium below the rubber roller 3 towards the paper withdrawing direction when the rubber roller 3 rotates reversely through the rubber roller 3 arranged in the long slot, the rubber roller 3 is transferred from the first end of the long slot to the second end of the long slot, and the contact position of the rubber roller 3 and the medium changes during the moving process of the rubber roller, which is beneficial to separating the medium from the printing head 5. In addition, the embodiment does not increase redundant parts, and has ingenious structure and low cost.

In the following description of the embodiment, the medium is illustrated by taking the paper 4 as an example, and in other alternative embodiments, the medium may be other products, and is not limited to the embodiment.

In the embodiment, preferably, the power assembly comprises a driving gear 2, and one end of the rubber roller 3 is provided with a driven gear 31; the driving gear 2 is in meshed transmission with the driven gear 31, and the long groove is an arc-shaped groove 11. The arc-shaped groove 11 in the device can meet the requirement that the rubber roller 3 provided with the driven gear 31 can rotate around the center of the driving gear 2 while rotating around the rubber roller. Wherein, power component still includes the motor, and the motor drives driving gear 2 and rotates. In addition, when the rubber roller 3 rotates reversely, the first end of the arc-shaped groove 11 is transferred to the second end of the arc-shaped groove 11, and the contact position of the rubber roller 3 and the paper 4 changes in the horizontal and vertical directions in the moving process, so that the paper 4 is favorably separated from the printing head 5.

Regarding the specific position of the arc-shaped slot 11, in this embodiment, optionally, a first end of the arc-shaped slot 11 is located on a connection line between the driving gear 2 and the heating wire of the print head 5, and a second end of the arc-shaped slot 11 is located on a paper feeding side of the first end. When the rubber roller 3 is positioned at the first end of the arc-shaped groove 11, namely at the printing position, the connecting line of the axis of the rubber roller 3 and the center of the driving gear 2 is a vertical line. During printing, the paper 4 passes through the first end of the arc-shaped slot 11 and then passes through the second end of the arc-shaped slot 11 in the horizontal direction. The arcuate slot 11 is to the right of the line between the drive gear 2 and the heater wire of the printhead 5, with the first end to the left of the second end, as oriented in figure 1.

This setting makes rubber roll 3 in the antiport process, can not only move from the left to the right in the horizontal direction, can also move from the bottom up in vertical direction, and the pressure between rubber roll 3 and paper 4 reduces. When the device is used, the motor rotates forwards and backwards repeatedly to drive the rubber roller 3 to move repeatedly in the horizontal direction and the vertical direction, so that the paper 4 is pushed and pulled in a reciprocating manner, and the paper 4 is favorably separated from the printing head 5.

In view of the preparation process and precision, in order to smoothly complete the conversion from the first end to the second end of the arc-shaped groove 11 for the rubber roller 3, in this embodiment, it is preferable that an included angle between a connection line between the driving gear 2 and the first end of the arc-shaped groove 11 and a connection line between the driving gear 2 and the heating line of the print head 5 is ± 2 degrees, and is preferably positive 2 degrees, that is, the connection line between the driving gear 2 and the first end of the arc-shaped groove 11 is located on the right side of the connection line between the driving gear 2 and the heating line of the print head 5, and the included angle is 2 degrees. The rubber roller 3 is wrapped with a rubber layer in the circumferential direction, and the hardness of the rubber layer is Shore 40. This setting makes rubber roll 3 move the process to the second end by the first end of arc wall 11, even there is the condition of downward movement, the distance is also less, can not cause the motion to interfere, and because the existence on rubber layer, when the motion takes place to interfere, the rubber layer takes place to deform, impels rubber roll 3 to move from the first end of arc wall 11 to the second end smoothly.

In other embodiments, optionally, the first end of the arc-shaped slot 11 and the second end of the arc-shaped slot 11 are located on both sides of a line between the driving gear 2 and the heating wire of the print head 5. The arrangement enables the rubber roller 3 to move from left to right in the horizontal direction and then move downwards and upwards in the vertical direction in the process of converting forward rotation into reverse rotation, so that the adhesion state between the paper 4 and the printing head 5 is improved, and the separation of the paper 4 and the printing head 5 is facilitated.

In addition, in other embodiments, the arc-shaped slot 11 may also be disposed at other positions, for example, a second end of the arc-shaped slot 11 is located on a connection line between the driving gear 2 and the heating wire of the print head 5, and a first end of the arc-shaped slot 11 is located on a paper feeding side of the second end; that is, the first end of the arc-shaped slot 11 and the second end of the arc-shaped slot 11 are both located at the left side of the connecting line between the driving gear 2 and the heating wire of the print head 5.

In order to better separate the sheet 4 from the print head 5, in the present embodiment, the release paper printing mechanism preferably further includes a heating member for heating the print head 5. Specifically, the heating member is a heating member such as a heating wire, a heating rod, or a heating sheet provided on the circumferential side of the print head 5. The printing head 5 can be heated by the arrangement, the viscosity of the adhered materials can be reduced by the heated printing head 5, the adhesive force is reduced, and the paper 4 and the printing head 5 are more easily separated by matching with the movement of the rubber roller 3.

Further, the heating temperature of the heating wire, the heating rod or the heating sheet may be 30 to 50 degrees celsius, preferably 40 degrees celsius.

In other embodiments, alternatively, the printhead 5 may be heated in other manners, for example, a period of time before the start motor is reversed, which may be in a range of 0.5-5 seconds, preferably 2 seconds, based on the print control circuit sending out a clock, data, latch or strobe signal, and a small power voltage with a small duty ratio (5-20%) is continuously applied to the printhead 5 driving IC to heat the printhead 5, wherein the applied voltage is within the specification range of the printhead 5.

The embodiment also provides a printer, which comprises the release paper printing mechanism in the scheme.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (9)

1. A release paper printing mechanism, comprising:

the printer comprises a printer body (1), wherein the printer body (1) is provided with a long groove;

a power assembly provided to the printer body (1);

the rubber roller (3) is rotatably arranged in the long groove and is driven by the power assembly; the medium is dragged towards the paper feeding direction when the rubber roller (3) rotates forwards, the medium can be dragged towards the paper withdrawing direction when the rubber roller (3) rotates backwards, and when the rubber roller (3) rotates forwards and is switched to rotate backwards, the rubber roller (3) is transferred from the first end of the long groove to the second end of the long groove.

2. The release paper printing mechanism according to claim 1, wherein the power assembly comprises a driving gear (2), and one end of the rubber roller (3) is provided with a driven gear (31); the driving gear (2) is in meshed transmission with the driven gear (31), and the long groove is an arc-shaped groove (11).

3. The release paper printing mechanism according to claim 2, wherein the first end of the arc-shaped slot (11) is located on a line between the driving gear (2) and a heating wire of a print head (5), and the second end of the arc-shaped slot (11) is located on a paper feeding side of the first end.

4. The release paper printing mechanism according to claim 3, wherein the angle between the line connecting the driving gear (2) and the first end of the arc-shaped slot (11) and the line connecting the driving gear (2) and the heating line of the print head (5) is ± 2 degrees.

5. The release paper printing mechanism according to claim 1, further comprising a heating element for heating the printhead (5).

6. A release paper printing mechanism according to claim 5, wherein said heating element is a heating wire provided on the peripheral side of said print head (5).

7. A release paper printing mechanism according to claim 5, wherein the heating element is an electric heating rod provided on the peripheral side of the print head (5).

8. A release paper printing mechanism according to claim 5, wherein the heating element is a heating blade provided on the peripheral side of the print head (5).

9. A printer comprising the release paper printing mechanism of any of claims 1-8.

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