Paper feeding mechanism of printer

Abstract

The utility model relates to the technical field of paper feeding of printers, and provides a paper feeding mechanism of a printer, which comprises a frame provided with an accommodating cavity; the number of the tensioning rollers is multiple, and the multiple tensioning rollers are used for tensioning the paper; the first jet printing unit is arranged on the rack and located in the containing cavity, and the first jet printing unit is used for jet printing of the front face of the paper; the second jet printing unit is arranged on the rack and located in the containing cavity, the first jet printing unit and the second jet printing unit are arranged in a spaced mode, and the second jet printing unit is used for jet printing of the reverse side of the paper; and the drying oven is arranged on the rack and located in the containing cavity, the drying oven is located above the first jet printing unit and the second jet printing unit, and the drying oven is used for drying paper. According to the technical scheme, the problems that in the prior art, an existing drying assembly is located between ink jet assemblies, so that the drying assembly can affect the ink jet assemblies, hot air of the drying assembly enables water of sprayed ink to be evaporated, and the printing effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of printer paper feeding, in particular to a printer paper feeding mechanism. Background Art

[0002] The printer's paper feed mechanism is a crucial component, controlling the paper's transport and positioning, ensuring smooth and accurate printing. With the continuous advancement of printing technology, users are demanding increasingly higher levels of print quality, particularly in terms of duplex printing and high-quality image quality. To meet these demands, the design of printer paper feed mechanisms is undergoing continuous optimization and innovation.

[0003] The existing drying component is located between the inkjet components, so that the drying component will affect the inkjet components. The hot air from the drying component causes the water in the ejected ink to evaporate, thereby affecting the printing effect. Utility Model Content

[0004] The utility model proposes a printer paper feeding mechanism, which solves the problem in the related art that the existing drying component is located between the inkjet components, thereby causing the drying component to affect the inkjet components, and the hot air from the drying component causes the moisture in the sprayed ink to evaporate, thereby affecting the printing effect.

[0005] The technical solution of the utility model is as follows:

[0006] A paper feeding mechanism of a printer, comprising:

[0007] a frame having a receiving cavity;

[0008] There are a plurality of tensioning rollers, wherein the plurality of tensioning rollers are used to tension the paper;

[0009] a first printing unit, disposed on the frame and located in the accommodating cavity, the first printing unit being used for printing the front side of the paper;

[0010] a second printing unit, disposed on the frame and located in the accommodating cavity, wherein the first printing unit and the second printing unit are arranged at intervals, and the second printing unit is used for printing the reverse side of the paper;

[0011] An oven is provided on the frame and located in the accommodating cavity. The oven is located above the first printing unit and the second printing unit. The oven is used to dry the paper.

[0012] Optionally, also include:

[0013] A discharge shaft is arranged on the frame and is used to prevent paper from rolling up.

[0014] Optionally, the drying oven has a first inlet, a first outlet, a second inlet and a second outlet, a first drying gap is provided between the first inlet and the first outlet, a second drying gap is provided between the second inlet and the second outlet, and the first drying gap and the second drying gap are used to dry the front and back of the paper, respectively.

[0015] Optionally, the paper passes through the first printing unit, the first inlet, the first drying gap, the first outlet, the second printing unit, the second inlet, the second drying gap and the second outlet in sequence.

[0016] Optionally, also include:

[0017] A deflection corrector is provided between the unwinding shaft and the first printing unit, and is used for correcting the deflection of the paper.

[0018] Optionally, also include:

[0019] A driving unit is arranged on the frame, and the driving unit is used to drive the unloading shaft to rotate.

[0020] Optionally, also include:

[0021] A cutting assembly is provided on the frame and is located behind the second outlet along the paper conveying direction. The cutting assembly is used to cut the paper.

[0022] The working principle and beneficial effects of the utility model are as follows:

[0023] In this utility model, the paper feed mechanism of the printer includes a frame with one or more cavities designed to accommodate and protect the internal components. The frame is equipped with several tensioning rollers, evenly distributed along the paper feed path, to ensure that the paper remains flat and tensioned during transport, preventing curling or displacement. Both the first and second printing units are housed within the frame's cavities. The first printing unit prints the front side of the paper, while the second printing unit prints the back side. The two printing units are spaced apart to ensure accurate positioning of the paper during duplex printing. To address the issue of drying components interfering with the inkjet components in the prior art, a drying oven in this embodiment is located above the first and second printing units. The drying oven features a special airflow guide structure to prevent hot air from blowing directly onto the inkjet components, thereby preventing interference with the ink spraying and drying process. The oven utilizes high-efficiency heating elements and a precise temperature control system to ensure uniform heating and rapid drying of the ink on the paper surface. In addition, the oven's airflow guide structure is designed to be adjustable to accommodate different paper types and thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] In the figure: 1. Frame, 2. Accommodating cavity, 3. Tensioning roller, 4. Paper, 5. First printing unit, 6. Second printing unit, 7. Drying oven, 8. Discharging shaft, 9. First inlet, 10. First outlet, 11. Second inlet, 12. Second outlet, 13. First drying gap, 14. Second drying gap, 15. Deviation corrector, 16. Driving unit, 17. Cutting assembly. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0028] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0029] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] Reference Figure 1 , is an embodiment of the present utility model, and proposes

[0032] A paper feeding mechanism of a printer, comprising:

[0033] A frame 1 having a receiving cavity 2;

[0034] There are a plurality of tensioning rollers 3, and the plurality of tensioning rollers 3 are used to tension the paper 4;

[0035] The first printing unit 5 is provided on the frame 1 and is located in the accommodating cavity 2. The first printing unit 5 is used for printing the front side of the paper 4.

[0036] The second printing unit 6 is provided on the frame 1 and is located in the accommodating cavity 2. The first printing unit 5 and the second printing unit 6 are arranged at intervals. The second printing unit 6 is used to print the reverse side of the paper 4.

[0037] The oven 7 is arranged on the frame 1 and is located in the accommodating cavity 2. The oven 7 is located above the first printing unit 5 and the second printing unit 6. The oven 7 is used to dry the paper 4.

[0038] In this embodiment, the printer's paper feed mechanism includes a frame 1, which is designed with one or more cavities 2 for accommodating and protecting internal components. Frame 1 is equipped with several tensioning rollers 3, evenly distributed along the paper 4 conveying path, to ensure that the paper 4 remains flat and tensioned during conveyance, preventing curling or displacement. A first printing unit 5 and a second printing unit 6 are both disposed within the cavities 2 of frame 1. The first printing unit 5 is responsible for printing the front side of the paper 4, while the second printing unit 6 is responsible for printing the back side. The two printing units are spaced apart to ensure accurate positioning of the paper 4 during duplex printing. To address the issue of drying components affecting the inkjet components in the prior art, an oven 7 in this embodiment is positioned above the first and second printing units 5, 6. The oven 7 is designed with a special airflow guide structure to ensure that hot air is not blown directly onto the inkjet components, thereby avoiding affecting the ink jetting and drying process. The oven 7 uses high-efficiency heating elements and a precise temperature control system to achieve uniform heating and rapid drying of the ink on the surface of the paper 4. In addition, the air flow guide structure of the oven 7 is designed to be adjustable to accommodate different types and thicknesses of paper 4.

[0039] Optionally, also include:

[0040] The unloading shaft 8 is arranged on the frame 1 and is used to prevent the paper 4 from rolling.

[0041] In this embodiment, by providing the unwinding shaft 8, the paper 4 can be effectively prevented from curling during the printing process, and the flatness of the paper 4 can be maintained, which is particularly important for ensuring the printing effect.

[0042] Optionally, the drying oven 7 has a first inlet 9, a first outlet 10, a second inlet 11 and a second outlet 12, a first drying gap 13 is provided between the first inlet 9 and the first outlet 10, and a second drying gap 14 is provided between the second inlet 11 and the second outlet 12, and the first drying gap 13 and the second drying gap 14 are used for drying the front and back sides of the paper 4, respectively.

[0043] In this embodiment, by setting a first drying gap 13 and a second drying gap 14, which are used to dry the front and back of the paper 4 respectively, double-sided drying can be performed simultaneously or quickly alternately to improve drying efficiency. The two independent drying gaps allow targeted drying of the front and back of the paper 4, which helps to ensure that the ink can be evenly dried on both sides of the paper 4 and avoid print quality problems caused by uneven drying. The multiple inlet and outlet design of the oven 7 allows the drying process to be adjusted according to actual printing needs, such as using only one drying gap when printing on one side, or using two drying gaps at the same time when printing on both sides. By optimizing the design of the drying gaps, the friction and stretching of the paper 4 during the drying process can be reduced, the risk of damage to the paper 4 can be reduced, and the service life of the printer and paper 4 can be extended. Quickly drying the paper 4 can reduce the time waiting for the ink to dry, thereby increasing the printing speed and meeting the needs of high-efficiency printing. By rationally designing the airflow and temperature distribution inside the oven 7, thermal energy can be used more effectively and energy waste can be reduced.

[0044] Optionally, the paper 4 passes through the first printing unit 5 , the first inlet 9 , the first drying gap 13 , the first outlet 10 , the second printing unit 6 , the second inlet 11 , the second drying gap 14 and the second outlet 12 in sequence.

[0045] In this embodiment, the continuous passage of the paper 4 through the printing unit and the drying gap achieves seamless connection from printing to drying, thereby improving the efficiency of the printing process. After the front side of the paper 4 is printed by the first printing unit 5, it is dried by the first drying gap 13, and then the back side is printed and dried by the second drying gap 14, ensuring that the ink can be dried in time after printing. By drying immediately after printing, the risk of ink penetrating to the other side of the paper 4 can be reduced, and the clarity of the printed surface can be maintained. Improve the quality of double-sided printing: the front and back sides of the paper 4 pass through independent drying gaps respectively, which can more accurately control the drying conditions and ensure the quality and consistency of double-sided printing.

[0046] Optionally, also include:

[0047] The deflection corrector 15 is provided between the unwinding shaft 8 and the first printing unit 5 , and is used for deflecting the paper 4 .

[0048] In this embodiment, the deflection corrector 15 can automatically detect and adjust the position of the paper 4, ensuring that the paper 4 is accurately positioned when entering the printing unit, thereby improving printing accuracy. The paper 4 may deviate during transportation, and the deflection corrector 15 can promptly correct this deviation, reducing printing deviations caused by inaccurate positioning of the paper 4. By ensuring accurate alignment of the paper 4, the deflection corrector 15 helps improve the clarity and quality of the printed image, which is particularly important when printing fine patterns or text. Deflection correction of the paper 4 can reduce printing errors caused by deviation of the paper 4, thereby reducing scrap rates and improving printing efficiency.

[0049] Optionally, also include:

[0050] The driving unit 16 is provided on the frame 1 and is used for driving the unloading shaft 8 to rotate.

[0051] Optionally, also include:

[0052] The cutting assembly 17 is disposed on the frame 1 and is located after the second outlet 12 along the conveying direction of the paper 4 . The cutting assembly 17 is used to cut the paper 4 .

[0053] In this embodiment, the drive unit 16 provides stable power to the discharge shaft 8 to ensure the continuity and uniformity of the paper 4 delivery. Through the control of the drive unit 16, the rotation speed of the discharge shaft 8 can be adjusted to adapt to printing requirements of different speeds. The automated drive unit 16 reduces the reliance on manual operation and improves the convenience and safety of operation. The cutting component 17 performs precise cutting after the paper 4 is printed to ensure the neatness and standardization of the printed product. The automated cutting process reduces the time required for manual cutting and improves production efficiency. Accurate cutting reduces the waste of paper 4 due to inaccurate cutting. The cutting component 17 can be adjusted according to the length of the printed content to adapt to the printing requirements of paper 4 of different lengths.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A printer paper feed mechanism, characterized in that: include: A frame (1), wherein the frame (1) has a receiving cavity (2); There are a plurality of tensioning rollers (3), wherein the plurality of tensioning rollers (3) are used for tensioning the paper (4); A first printing unit (5) is provided on the frame (1) and is located in the accommodating cavity (2), and the first printing unit (5) is used for printing the front side of the paper (4); a second printing unit (6) disposed on the frame (1) and located in the accommodating cavity (2); the first printing unit (5) and the second printing unit (6) are arranged at intervals; the second printing unit (6) is used to print the reverse side of the paper (4); An oven (7) is arranged on the frame (1) and is located in the accommodating cavity (2). The oven (7) is located above the first printing unit (5) and the second printing unit (6). The oven (7) is used to dry the paper (4).

2. A printer paper feed mechanism according to claim 1, characterized in that: Also includes: A discharge shaft (8) is arranged on the frame (1), and the discharge shaft (8) is used to prevent paper from rolling.

3. A printer paper feed mechanism according to claim 2, characterized in that: The drying oven (7) has a first inlet (9), a first outlet (10), a second inlet (11) and a second outlet (12); a first drying gap (13) is provided between the first inlet (9) and the first outlet (10); a second drying gap (14) is provided between the second inlet (11) and the second outlet (12); the first drying gap (13) and the second drying gap (14) are respectively used for drying the front side and the back side of the paper (4).

4. A printer paper feed mechanism according to claim 3, characterized in that: The paper (4) passes through the first printing unit (5), the first inlet (9), the first drying gap (13), the first outlet (10), the second printing unit (6), the second inlet (11), the second drying gap (14) and the second outlet (12) in sequence.

5. The paper feed mechanism of a printer according to claim 2, characterized in that: Also includes: A deflection corrector (15) is provided between the discharge shaft (8) and the first printing unit (5), and the deflection corrector (15) is used to correct the deflection of the paper (4).

6. A printer paper feed mechanism according to claim 3, characterized in that: Also includes: A driving unit (16) is arranged on the frame (1), and the driving unit (16) is used to drive the discharge shaft (8) to rotate.

7. A printer paper feed mechanism according to claim 3, characterized in that: Also includes: A cutting assembly (17) is arranged on the frame (1), and the cutting assembly (17) is located after the second outlet (12) along the conveying direction of the paper (4), and the cutting assembly (17) is used to cut the paper (4).

Images