Wide-width thermal printer capable of leveling paper

Abstract

The utility model relates to the technical field of wide-width thermal printers, in particular to a wide-width thermal printer capable of leveling paper, which comprises a printer upper cover module and a printer base module, the printer upper cover module is positioned on the upper side of the printer base module and can be turned over by 90 degrees to be opened, and the printer base module is positioned on the upper side of the printer base module. A paper channel module is arranged in the printer base module; an upper paper guide shaft and a printing head module are arranged in the printer upper cover module; and the upper paper guide shaft is matched with the paper channel module to flatten the roll paper. Paper passes through the upper portion of the lower paper guide shaft, downwards passes through the bottom of the upper paper guide shaft and then upwards passes through the rubber roller and the printing head. During printing, bent paper is bent in the opposite directions of the two paper guide shafts, the original curling degree is greatly reduced, the use requirement is met, and meanwhile paper tearing can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wide-format thermal printers, and more particularly to a wide-format thermal printer capable of leveling paper. Background Art

[0002] Wide-format thermal printers are small in size, have low paper change frequency, are highly reliable, and require no consumables throughout their life. They are particularly suitable for use in self-service equipment to replace laser printers and inkjet printers. However, thermal printers usually use wide-format roll paper. When the paper roll reaches the end of its life, the outer diameter of the roll becomes smaller and smaller, and the printed paper becomes more and more curled, which makes it difficult for users to accept.

[0003] The utility model patent with the Chinese patent publication number CN 215883071 U discloses a paper flattening mechanism and a printer, which relates to the technical field of printing equipment. The printer includes a paper flattening mechanism, which includes a first roller and a second roller, the first roller includes a first wheel, the first wheel includes a first wheel body and a first driving body, the first wheel body includes a groove extending in the circumferential direction, and the first driving body is annularly arranged on the first wheel body; the second roller includes a second wheel, the second wheel includes a second wheel body and a second driving body, the second wheel body includes a protrusion extending in the circumferential direction, the protrusion extends into the groove, and the second driving body is annularly arranged on the second wheel body, along the thickness direction of the paper, the first driving body and the second driving body are respectively located on both sides of the paper, used to drive the paper to move, and the paper passes between the protrusion and the groove, and the mutual cooperation of the protrusion and the groove of the paper flattening mechanism provided by the utility model can cause the surface of the paper to deform, so as to increase the stiffness of the paper, thereby flattening the curved paper.

[0004] However, the cooperation between the protrusions and grooves of the flattening mechanism can cause deformation of the paper surface, and while flattening the bent paper, two marks will be left on the paper surface, affecting the overall aesthetics. At the same time, the effect of flattening the paper by lateral stretching is poor, and a large force is required to achieve the above effect, which will lead to an increase in the production cost of the printer and may also cause paper tearing. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a wide-format thermal printer capable of leveling paper.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions, which mainly include:

[0007] A wide-format thermal printer capable of leveling paper consists of a printer cover module and a printer base module. The printer cover module is located on the upper side of the printer base module and can be flipped 90 degrees to open. The printer base module includes a paper channel module; the printer cover module includes an upper paper guide shaft and a print head module; the upper paper guide shaft and the paper channel module cooperate with each other to flatten roll paper.

[0008] Preferably, the printer base module also includes a base, a transmission gear, a power switch, a rubber roller, a motor drive module, a cutter module and a bottom shell, the paper channel module is located on the upper side of the base, the rubber roller is rotatably connected to the inner side of the base, a transmission gear is provided on one side of the base, the transmission gear is fixedly connected to one end of the rubber roller, a power switch is provided on the side of the base away from the transmission gear, the power switch is electrically connected to the motor drive module, the motor drive module is meshed with the transmission gear, the lower end of the base is fixedly connected to the bottom shell, and a cutter module is provided between the base and the bottom shell.

[0009] Preferably, the paper channel module includes a lower paper guide shaft, an elastic fixing plate, an adjustment screw, a paper feed slot and an upper cover position sensing switch, paper feed slots are slidably arranged on both sides of the upper portion of the base, the adjustment screw is located between the two paper feed slots, the paper feed slots are threadedly connected to the adjustment screw, an upper cover position sensing switch is installed on one side of the base, elastic fixing plates are also installed on both sides of the upper portion of the base, a lower paper guide shaft is arranged between the elastic fixing plates, and the lower paper guide shaft is rotatably connected to the elastic fixing plates.

[0010] Preferably, the motor drive module is driven by a stepper motor.

[0011] Preferably, the cutting knife module includes a moving blade, a spring, a sleeve, a DC motor and a cam rod. The moving blade is slidably connected inside the base, and the moving blade is slidably connected to the sleeve. The sleeve is connected to the inner side of the base through a spring. A DC motor is fixedly connected between the base and the bottom shell. A cam rod is rotatably connected to the inner side of the base. The DC motor drives the cam rod to rotate through gears, and the cam rod is used to drive the moving blade to slide up and down.

[0012] Preferably, a main control board and a main blade position sensor are provided in the bottom shell.

[0013] Preferably, the printer upper cover module also includes an upper cover, a print head module, an opening rod, a display screen, a button indicator light board, a print head compression spring and an upper cover torsion spring. The upper side of the base is rotatably connected to the upper cover, and an upper cover torsion spring is provided between the base and the upper cover. The upper cover is rotatably connected to the upper paper guide shaft, a print head module is installed in the upper cover, and a plurality of print head compression springs are provided between the upper cover and the print head module. A display screen and a button indicator light board are respectively installed on the outside of the upper cover. An opening rod is also provided in the upper cover, and the opening rod slides in the upper cover, and the opening rod cooperates with the base.

[0014] It can be seen from the above technical solution that, compared with the prior art, the paper leveling function of the utility model is realized by the paper guide shafts respectively installed on the base and the upper cover. The paper channel module of the base is installed with a lower paper guide shaft near the rubber roller, and the upper paper guide shaft installed on the upper cover is located between the rubber roller and the lower paper guide shaft after the upper cover is closed. The paper passes from the upper part of the lower paper guide shaft and passes downward through the bottom of the upper paper guide shaft and then passes upward through the rubber roller and the print head. When printing, the bent paper passes through the opposite direction of the two paper guide shafts, and the original curling degree will be greatly reduced, meeting the use requirements, and at the same time, it can also prevent the paper from tearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0017] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0018] Figure 3 It is a three-dimensional structure explosion diagram of the upper cover module of the printer of the present invention.

[0019] Figure 4 It is a three-dimensional structure explosion diagram of the printer base module of the utility model.

[0020] Figure 5 It is an enlarged view of point A of the present utility model.

[0021] Figure 6 The working principle of this utility model Figure 1 .

[0022] Figure 7The working principle of this utility model Figure 2 .

[0023] Description of reference numerals: 1.0-base, 1.0.1-transmission gear, 1.0.2-power switch, 1.1-paper channel module; 1.1.1-lower paper guide shaft, 1.1.2-elastic fixing plate, 1.1.3-adjusting screw, 1.1.4-paper feed slot, 1.1.5-upper cover position sensor switch, 1.2-rubber roller, 1.3-motor drive module, 1.3.1-stepping motor, 1.4.1-moving blade, 1. 4.2-spring, 1.4.3-sleeve, 1.4.4-DC motor, 1.4.5-cam rod, 1.5-bottom shell, 1.5.1-main control board, 1.5.2-main blade position sensor, 2.0-upper cover, 2.1-upper paper guide shaft, 2.2-print head module, 2.3-opening rod, 2.4-display screen, 2.5-button indicator light board, 2.6-print head compression spring, 2.7-upper cover torsion spring, 3-roll paper. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] A wide format thermal printer that can level paper, such as Figure 1-Figure 5 As shown, it consists of two parts: a printer cover module and a printer base module. The printer cover module is located on the upper side of the printer base module and can be flipped 90 degrees to open. The printer base module includes a paper channel module 1.1; the printer cover module includes an upper paper guide shaft 2.1 and a print head module 2.2; the upper paper guide shaft 2.1 and the paper channel module 1.1 cooperate with each other to flatten the roll paper 3.

[0027] In order to further optimize the above scheme, the printer base module also includes a base 1.0, a transmission gear 1.0.1, a power switch 1.0.2, a rubber roller 1.2, a motor drive module 1.3, a cutter module and a bottom shell 1.5. The paper channel module 1.1 is located on the upper side of the base 1.0, and the rubber roller 1.2 is rotatably connected to the inner side of the base 1.0. A transmission gear 1.0.1 is provided on one side of the base 1.0, and the transmission gear 1.0.1 is fixedly connected to one end of the rubber roller 1.2. A power switch 1.0.2 is provided on the side of the base 1.0 away from the transmission gear 1.0.1, and the power switch 1.0.2 is electrically connected to the motor drive module, and the motor drive module is meshed with the transmission gear 1.0.1. The lower end of the base 1.0 is fixedly connected to the bottom shell 1.5, and a cutter module is provided between the base 1.0 and the bottom shell 1.5.

[0028] In order to further optimize the above scheme, the paper channel module 1.1 includes a lower paper guide shaft 1.1.1, an elastic fixing plate 1.1.2, an adjusting screw 1.1.3, a paper feed slot 1.1.4 and an upper cover 2.0 position sensing switch 1.1.5. Paper feed slots 1.1.4 are slidably arranged on both sides of the upper part of the base 1.0. The adjusting screw 1.1.3 is located between the two paper feed slots 1.1.4. The paper feed slots 1.1.4 are threadedly connected to the adjusting screw 1.1.3. An upper cover 2.0 position sensing switch 1.1.5 is installed on one side of the base 1.0. Elastic fixing plates 1.1.2 are also installed on both sides of the upper part of the base 1.0. A lower paper guide shaft 1.1.1 is arranged between the elastic fixing plates 1.1.2, and the lower paper guide shaft 1.1.1 is rotatably connected to the elastic fixing plates 1.1.2.

[0029] In order to further optimize the above solution, the motor drive module 1.3 is driven by a stepper motor 1.3.1.

[0030] In order to further optimize the above scheme, the cutting knife module includes a moving blade 1.4.1, a spring 1.4.2, a sleeve 1.4.3, a DC motor 1.4.4 and a cam rod 1.4.5. The moving blade 1.4.1 is slidably connected inside the base 1.0. The moving blade 1.4.1 is slidably connected to the sleeve 1.4.3. The sleeve 1.4.3 is connected to the inner side of the base 1.0 through the spring 1.4.2. A DC motor 1.4.4 is fixedly connected between the base 1.0 and the bottom shell 1.5. The cam rod 1.4.5 is rotatably connected to the inner side of the base 1.0. The DC motor 1.4.4 drives the cam rod 1.4.5 to rotate through gears. The cam rod 1.4.5 is used to drive the moving blade 1.4.1 to slide up and down.

[0031] In order to further optimize the above solution, a main control board 1.5.1 and a main blade position sensor 1.5.2 are provided in the bottom shell 1.5.

[0032] In order to further optimize the above scheme, the printer upper cover module also includes an upper cover 2.0, a print head module 2.2, an opening rod 2.3, a display screen 2.4, a button indicator board 2.5, a print head compression spring 2.6 and an upper cover torsion spring 2.7. The upper side of the base 1.0 is rotatably connected to the upper cover 2.0, and an upper cover 2.0 torsion spring is provided between the base 1.0 and the upper cover 2.0. The upper cover 2.0 is rotatably connected to the upper paper guide shaft 2.1. The print head module 2.2 is installed in the upper cover 2.0, and a plurality of print head compression springs 2.6 are provided between the upper cover 2.0 and the print head module 2.2. The display screen 2.4 and the button indicator board 2.5 are respectively installed on the outside of the upper cover 2.0. An opening rod 2.3 is also provided in the upper cover 2.0, and the opening rod 2.3 slides in the upper cover 2.0, and the opening rod 2.3 cooperates with the base 1.0.

[0033] like Figure 6 and Figure 7 As shown, the paper leveling function of the present application is realized by the paper guide shafts installed on the base and the upper cover respectively. The paper channel module of the base is installed with a lower paper guide shaft 1.1.1 near the rubber roller. The upper paper guide shaft 2.1 installed on the upper cover 2.0 is located between the rubber roller 1.2 and the lower paper guide shaft 1.1.1 after the upper cover is closed. The paper passes from the upper part of the lower paper guide shaft 1.1.1 and passes downward through the bottom of the upper paper guide shaft 2.1 and then passes upward through the rubber roller 1.2 and the print head. When printing, the bent paper is bent in the opposite direction of the two paper guide shafts, and the original curling degree will be greatly reduced, meeting the use requirements.

[0034] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wide-format thermal printer capable of leveling paper, characterized in that it consists of a printer cover module and a printer base module, wherein the printer cover module is located on the upper side of the printer base module and can be flipped 90 degrees to open, wherein the printer base module includes a paper channel module (1.1); the printer cover module includes an upper paper guide shaft (2.1) and a print head module (2.2); the upper paper guide shaft (2.1) and the paper channel module (1.1) cooperate with each other to level the roll of paper (3); The printer base module also includes a base (1.0), a transmission gear (1.0.1), a power switch (1.0.2), a rubber roller (1.2), a motor drive module (1.3), a cutter module and a bottom shell (1.5); the paper channel module (1.1) is located on the upper side of the base (1.0); the rubber roller (1.2) is rotatably connected to the inner side of the base (1.0); and a transmission gear (1.0.2) is provided on one side of the base (1.0). 1.0.1), the transmission gear (1.0.1) is fixedly connected to one end of the rubber roller (1.2), a power switch (1.0.2) is provided on the side of the base (1.0) away from the transmission gear (1.0.1), the power switch (1.0.2) is electrically connected to the motor drive module, the motor drive module is meshed with the transmission gear (1.0.1), the lower end of the base (1.0) is fixedly connected to a bottom shell (1.5), and a cutting knife module is provided between the base (1.0) and the bottom shell (1.5); The paper channel module (1.1) comprises a lower paper guide shaft (1.1.1), an elastic fixing plate (1.1.2), an adjusting screw (1.1.3), a paper feed slot (1.1.4) and an upper cover (2.0) position sensing switch (1.1.5); paper feed slots (1.1.4) are slidably arranged on both sides of the upper part of the base (1.0); the adjusting screw (1.1.3) is located between the two paper feed slots (1.1.4); the paper feed slot (1.1.4) is located between the two paper feed slots (1.1.4); 1.4) are both threadedly connected to the adjustment screw (1.1.3); a position sensing switch (1.1.5) of the upper cover (2.0) is installed on one side of the base (1.0); elastic fixing plates (1.1.2) are also installed on both sides of the upper part of the base (1.0); a lower paper guide shaft (1.1.1) is provided between the elastic fixing plates (1.1.2); the lower paper guide shaft (1.1.1) is rotatably connected to the elastic fixing plates (1.1.2); the electric The cutting machine drive module (1.3) is driven by a stepper motor (1.3.1); the cutting knife module comprises a moving blade (1.4.1), a spring (1.4.2), a shaft sleeve (1.4.3), a DC motor (1.4.4) and a cam rod (1.4.5); the moving blade (1.4.1) is slidably connected in the base (1.0); the moving blade (1.4.1) is slidably connected to the shaft sleeve (1.4.3); the shaft sleeve (1.4 .3) is connected to the inner side of the base (1.0) through a spring (1.4.2), a DC motor (1.4.4) is fixedly connected between the base (1.0) and the bottom shell (1.5), a cam rod (1.4.5) is rotatably connected to the inner side of the base (1.0), the DC motor (1.4.4) drives the cam rod (1.4.5) to rotate through a gear, and the cam rod (1.4.5) is used to drive the movable blade (1.4.1) to slide up and down.

2. A wide format thermal printer capable of leveling paper according to claim 1, characterized in that: A main control board (1.5.1) and a main blade position sensor (1.5.2) are arranged in the bottom shell (1.5).

3. A wide format thermal printer capable of leveling paper according to claim 1, characterized in that: The printer upper cover module also includes an upper cover (2.0), a print head module (2.2), a cover opening rod (2.3), a display screen (2.4), a key indicator light panel (2.5), a print head compression spring (2.6) and an upper cover torsion spring (2.7); the upper side of the base (1.0) is rotatably connected to the upper cover (2.0); an upper cover (2.0) torsion spring is provided between the base (1.0) and the upper cover (2.0); the upper cover (2.0) is rotatably connected to the upper paper guide shaft (2.1); A print head module (2.2) is installed in the upper cover (2.0), a plurality of print head compression springs (2.6) are arranged between the upper cover (2.0) and the print head module (2.2), a display screen (2.4) and a key indicator light board (2.5) are respectively installed on the outer side of the upper cover (2.0), and a cover opening rod (2.3) is also arranged in the upper cover (2.0), the cover opening rod (2.3) slides in the upper cover (2.0), and the cover opening rod (2.3) cooperates with the base (1.0).

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