CN219523438U - Can prevent no core printing device of book of card paper - Google Patents

Abstract

The utility model relates to the technical field of printers, in particular to a non-roll printing device capable of preventing paper jam, which is characterized in that a paper guide block structure is improved on the basis of the existing printer, a paper shoveling structure is adapted, and rolled printing paper is unfolded by utilizing the paper shoveling structure and the paper guide block, so that the folding of the printing paper is avoided; in addition, the paper shoveling structure can also prevent the coiled printing paper from being in direct contact with the rubber roller, so that the situation that the rubber roller drives the coiled printing paper to rotate along with the rubber roller to cause backwinding can be effectively avoided, the end of the printing paper can be prevented from being folded and compacted, and paper jam can be avoided.

Description

Can prevent no core printing device of book of card paper

Technical Field

The utility model relates to the technical field of printers, in particular to a coreless printing device capable of preventing paper jam.

Background

Thermal printing paper typically has a plastic or paper core around which the paper is wound. But now, in order to save the cost, more and more printing papers are on the market, and the rolling paper without the winding core is realized by improving the production process. The cost of the winding core can be saved by adopting the winding paper without the winding core. Meanwhile, the winding angle of the starting end of the winding of the printing paper is small, so that more printing papers can be wound on the same winding paper on the premise of the same diameter.

For a printer core without a paper guide function, when printing a little paper left during the use process of the printing paper without the paper roll, the last dot of printing paper can fold due to the lack of gravity pressing of the winding core and the fact that the paper without the winding core is curled more, so that a plurality of layers of paper are clamped between the rubber roller and the heat-sensitive sheet, and a machine alarm is caused. And the rubber roller rotates to drive the paper to automatically wrap around the self-wrapping center, so that the rest paper can be folded and pressed, and paper jam is caused.

Disclosure of Invention

In order to achieve the above purpose, the utility model provides a coreless printing device capable of preventing paper jam, which comprises a printer body, wherein a paper bin is arranged in the printer body, a thermal printing mechanism is arranged on one side of an outlet of the paper bin, a rubber roller matched with the thermal printing mechanism is arranged on the other side of the outlet of the paper bin, a paper guide block is arranged in the printer body, a paper shoveling structure is arranged on one side of the printer body, which is positioned on the feeding side of the rubber roller, and a paper passing channel is formed between the paper shoveling structure and the paper guide block.

In some possible implementations, the paper shoveling structure includes a connection portion and a paper shoveling portion, the connection portion is mounted on an inner wall of the printer body, and an outward end of the paper shoveling portion cooperates with the paper guide block to form the paper passing channel.

In some possible implementations, an arcuate surface is provided on a side of the paper scooping portion proximate the paper bin, the arcuate surface extending to a connection portion.

In some possible implementations, the paper guide block is provided with a paper guide surface, and an outward end of the paper shoveling part is matched with the paper guide surface to form the paper passing channel.

In some possible implementations, the outward end of the spade is provided with a chamfer on both ends of the paper passing channel.

In some possible implementations, a side of the paper shoveling portion, which is close to the paper bin, and the inner wall of the paper bin form an splayed paper feeding area.

In some possible implementations, a rounded chamfer is provided on a side of the paper guide block near the paper bin.

In some possible implementations, the printer body includes a housing and a flip cover hinged to the housing, the flip cover being capable of being fastened to the housing and forming the paper bin, the thermal printing mechanism and the paper guide block being both disposed on the housing, the glue roller being rotatably mounted on the flip cover, the paper scooping structure being disposed in the flip cover.

In some possible implementations, when the movable side of the flip cover is buckled on the casing, a paper outlet channel can be formed with the casing, and the rubber roller and the thermal printing mechanism are respectively installed on the flip cover and the casing on the corresponding side of the paper outlet channel.

Compared with the prior art, the utility model has the beneficial effects that: the non-roll printing device improves the paper guide block structure on the basis of the existing printer, is simultaneously matched with the paper shoveling structure, and utilizes the paper shoveling structure to be matched with the paper guide block to spread rolled printing paper, so that the printing paper is prevented from being folded; in addition, the paper shoveling structure can also prevent the coiled printing paper from being in direct contact with the rubber roller, so that the situation that the rubber roller drives the coiled printing paper to rotate along with the rubber roller to cause backwinding can be effectively avoided, the end of the printing paper can be prevented from being folded and compacted, and paper jam can be avoided.

Drawings

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

Fig. 1 is a schematic structural diagram of a coreless printing device according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of a flip cover according to an embodiment of the present utility model.

Reference numerals:

the printer comprises a printer body 10, a paper bin 11, a paper guide block 12, a paper shoveling structure 13, a connecting part 131, a paper shoveling part 132, an arc-shaped surface 133, a paper passing channel 14, a paper guide surface 15, a paper feeding area 16, a machine shell 17, a flip cover 18 and a paper discharging channel 19;

a thermal printing mechanism 20;

and a glue roller 30.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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. The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying 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 one or more such feature. In the description of the embodiments of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

Referring to fig. 1 to 3, the utility model provides a coreless printing device capable of preventing paper jam, comprising a printer body 10, wherein a paper bin 11 is arranged in the printer body 10, a thermal printing mechanism 20 is arranged on one side of an outlet of the paper bin 11, a rubber roller 30 matched with the thermal printing mechanism 20 is arranged on the other side of the outlet of the printer body 10, a paper guide block 12 is arranged in the printer body 10, a paper shoveling structure 13 is arranged on one side of the printer body 10, which is fed by the rubber roller 30, and a paper passing channel 14 is formed between the paper shoveling structure 13 and the paper guide block 12.

The paper guide block 12 structure is improved on the basis of the existing printer, the paper shoveling structure 13 is adapted, the rolled printing paper is unfolded by utilizing the paper shoveling structure 13 and the paper guide block 12, and the printing paper is prevented from being folded; in addition, the paper shoveling structure 13 can also prevent the rolled printing paper from being in direct contact with the rubber roller 30, so that the phenomenon that the rubber roller 30 drives the rolled printing paper to rotate along with the rubber roller 30 to cause backwinding can be effectively avoided, the end of the printing paper is prevented from being folded and compacted, and the occurrence of paper jam can be avoided.

Wherein the printer body 10 is a conventional portable thermal printer, the thermal printing mechanism 20 is a conventional thermal print head, for easier explanation, in one embodiment of the present utility model, the printer body 10 includes a housing 17 and a flip cover 18 hinged to the housing 17, the flip cover 18 can be fastened on the housing 17 and form the paper bin 11, the thermal printing mechanism 20 and the paper guide block 12 are both disposed on the housing 17, the rubber roller 30 can be rotatably mounted on the flip cover 18, and the paper shoveling structure 13 is disposed in the flip cover 18.

In the above embodiment, one end of the flip cover 18 is hinged to the casing 17, and a cavity is also provided in the interior of the flip cover, and the cavity and the internal space of the casing 17 together form the paper bin 11. The outward end of the scoop structure 13 is directed toward the paper bin 11 so that the rolled printing paper can be effectively unwound.

In the modification of the above embodiment, when the movable side of the flip cover 18 is fastened to the casing 17, a paper outlet channel 19 can be formed with the casing 17, and the glue roller 30 and the thermal printing mechanism 20 are respectively installed on the flip cover 18 and the casing 17 on the side corresponding to the paper outlet channel 19. Wherein the paper outlet channel 19 communicates the paper bin 11 with the paper outlet.

In some possible implementations, referring to fig. 2 and 3, in order to better isolate the rolled printing paper, the paper shoveling structure 13 includes a connection portion 131 and a paper shoveling portion 132, the connection portion 131 is mounted on an inner wall of the printer body 10, and an outward end of the paper shoveling portion 132 cooperates with the paper guide block 12 to form the paper passing channel 14. One end of the rolled sheet of printing paper passes outwardly through the paper passage 14 and into the paper passage 19 described above, and eventually exits the entire printer body 10 through the paper exit.

In some possible implementations, in order to better realize the unwinding of the rolled printing paper, the situation that the rolled printing paper is unwound and jammed with the paper shoveling structure 13 when being drawn and unwound is avoided, one side of the paper shoveling portion 132, which is close to the paper bin 11, is provided with an arc-shaped surface 133, and the arc-shaped surface 133 extends to the connecting portion 131. In practice, the curvature of the curved surface 133 is greater than that of the inner surface of the paper bin 11, so that the contact area between the curved surface 133 and the outer surface of the rolled printing paper can be reduced, the friction force is reduced, and the paper discharge is facilitated. In addition, in the process of rotating the rubber roller 30 to feed paper, the rolled printing paper is drawn and rotates after being contacted with the arc-shaped surface 133, and the arc-shaped surface 133 can be utilized to facilitate the rotation of the rolled printing paper to a certain extent, so that the occurrence of paper jam is reduced.

In some possible implementations, to facilitate the above-mentioned printing paper discharging, the paper guide block 12 is provided with a paper guide surface 15, and an outward end of the paper scooping portion 132 cooperates with the paper guide surface 15 to form the paper passing channel 14. In a modified embodiment, the paper scooping portion 132 forms an splayed paper feeding area 16 with the inner wall of the paper bin 11 near the paper bin 11, and the design is adapted to the rolled printing paper with different diameters, and the rolled printing paper is limited in the paper feeding area 16, so that the rolled printing paper is unfolded by the paper scooping portion 132.

In some possible implementations, to better enable movement of the printing sheet through the paper passage 14, and also to avoid scratching of the printing sheet by the scoop 132, the outward end of the scoop 132 is provided with a chamfer on both ends of the paper passage 14. Similarly, a smooth chamfer is arranged on one side of the paper guide block 12, which is close to the paper bin 11.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any changes or substitutions within the technical scope of the present utility model should be covered by the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a can prevent heart printing device of no book of card paper, includes printer body (10), be provided with paper storehouse (11) in printer body (10), printer body (10) are located be provided with thermal printing mechanism (20) on one side of the export of paper storehouse (11), printer body (10) are located be provided with on the export opposite side of paper storehouse (11) with thermal printing mechanism (20) complex rubber roll (30), a serial communication port, be provided with in printer body (10) and lead paper piece (12), printer body (10) are located be provided with shovel paper structure (13) on one side of rubber roll (30) feeding, shovel paper structure (13) with form paper passageway (14) between leading paper piece (12).

2. A coreless printing apparatus capable of preventing paper jam according to claim 1, wherein the paper scooping structure (13) includes a connecting portion (131) and a paper scooping portion (132), the connecting portion (131) is mounted on an inner wall of the printer body (10), and an outward end of the paper scooping portion (132) cooperates with the paper guide block (12) to form the paper passing passage (14).

3. A coreless printing apparatus capable of preventing paper jam according to claim 2, wherein the paper scooping portion (132) is provided with an arcuate surface (133) on a side thereof close to the paper bin (11), the arcuate surface (133) extending to the connecting portion (131).

4. A coreless printing apparatus capable of preventing paper jam according to claim 2, wherein a paper guide surface (15) is provided on the paper guide block (12), and an outward end of the paper scooping portion (132) cooperates with the paper guide surface (15) to form the paper passing path (14).

5. A coreless printing apparatus capable of preventing paper jam according to claim 2, wherein the outward end of the paper scooping portion (132) is provided with chamfers at both ends of the paper passing path (14).

6. The coreless printing apparatus capable of preventing paper jam according to claim 2, wherein the paper scooping portion (132) forms an eight-shaped paper feeding area (16) with an inner wall of the paper bin (11) at a side close to the paper bin (11).

7. A coreless printing apparatus capable of preventing paper jam according to claim 2, wherein a side of the paper guide block (12) near the paper bin (11) is provided with a rounded chamfer.

8. A coreless printing apparatus capable of preventing paper jams in accordance with any one of claims 1 to 7 wherein the printer body (10) comprises a housing (17) and a flip cover (18) hinged to the housing (17), the flip cover (18) being capable of being snap-fitted to the housing (17) and forming the paper bin (11), the thermal printing mechanism (20) and the paper guide block (12) being both disposed on the housing (17), the glue roller (30) being rotatably mounted on the flip cover (18), the paper scoop structure (13) being disposed within the flip cover (18).

9. A coreless printing apparatus capable of preventing paper jam according to claim 8, wherein the movable side of the cover (18) is fastened to the housing (17) to form a paper outlet channel (19) with the housing (17), and the rubber roller (30) and the thermal printing mechanism (20) are respectively mounted on the corresponding sides of the cover (18) and the housing (17) to the paper outlet channel (19).