Paper feeding device for digital printer

Abstract

The utility model discloses a paper feeding device for a digital printer, which comprises a paper feeding main body, a paper feeding motor is fixedly connected to the front surface of the paper feeding main body, a paper feeding shaft is connected to the back surface of the paper feeding motor, a paper feeding roller is fixedly connected to the outer wall of the paper feeding shaft, and a supporting column is fixedly connected to the interior of the paper feeding main body. The upper end of the supporting column is fixedly connected with a pressure sensor, the interior of the side, close to the supporting column, of the paper feeding body is fixedly connected with a hydraulic rod structure, the upper end of the hydraulic rod structure is fixedly connected with a supporting rod, and the outer wall of the supporting rod is rotationally connected with a tension roller. According to the printing paper tension adjusting device, the tension of the printing paper is adjusted through the arrangement of a tension sensor, a hydraulic rod structure, a supporting rod and a tension roller, so that the printing paper conveying stability is improved, wrinkles and folding are prevented from being generated, and the attractiveness of digital printing is prevented from being affected, and the purposes of solving problems and improving the practical value are achieved through the technology.

Description

Technical Field

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

[0002] Universal digital printing has made great progress in recent years due to its many advantages such as simple process flow, short printing cycle, variable data printing and personalized printing, and the achievements of inkjet printing have added a beautiful touch to the digital printing industry, especially large-format inkjet printing technology. Because of its advantages in printing color and printing medium compatibility, it is widely used in imaging, advertising, display, map printing and printing and other fields. Ultra-large-format inkjet digital printing machines have become a force competing with traditional screen printing in POP / POS, outdoor advertising, interior decoration, indoor and outdoor signs, large-scale artworks and other markets. When digital printing is performed, the printed paper needs to be transported.

[0003] However, when transporting longer printing paper, the paper will be affected by tension, causing wrinkles, which will affect the printing effect.

[0004] In view of this, research and improvement are conducted on the existing problems, and a paper feeding device for a digital printer is provided. The tension of the printing paper can be adjusted by setting a paper feeding roller, a support column, a pressure sensor, a hydraulic rod structure, a support rod, and a tension roller, thereby increasing the stability of the printing paper transportation and preventing wrinkles and folds from affecting the aesthetics of digital printing. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a paper feeding device for a digital printer.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a paper feeding device for a digital printer, comprising a paper feeding body, a paper feeding motor is fixedly connected to the front of the paper feeding body, a paper feeding shaft is connected to the back of the paper feeding motor, a paper feeding roller is fixedly connected to the outer wall of the paper feeding shaft, a support column is fixedly connected to the inside of the paper feeding body, a pressure sensor is fixedly connected to the upper end of the support column, a hydraulic rod structure is fixedly connected to the inside of the paper feeding body near the support column, a support rod is fixedly connected to the upper end of the hydraulic rod structure, a tension roller is rotatably connected to the outer wall of the support rod, and a front plug-in connector is inserted into the front of the paper feeding body near the upper end of the paper feeding motor. There is a fixing pin structure, the upper end of the paper feeding body is clamped with a sealing cover plate, the lower end of the sealing cover plate is fixedly connected to the first support block, the front side of the first support block is rotatably connected to the first fixer, the front side of the first support block close to the inner wall of the first fixer is rotatably connected to the first connecting rod, the outer wall of the first connecting rod is fixedly connected to the first hair-sticking roller, the lower end of the sealing cover plate away from the first support block is fixedly connected to the second support block, the front side of the second support block is rotatably connected to the second fixer, the front side of the second support block close to the inner wall of the second fixer is rotatably connected to the second connecting rod, and the outer wall of the second connecting rod is fixedly connected to the second hair-sticking roller.

[0007] As a further description of the above technical solution:

[0008] The paper feeding roller is rotatably connected to the paper feeding body through a paper feeding shaft, and the tension roller is rotatably connected to the paper feeding body through a support rod.

[0009] As a further description of the above technical solution:

[0010] The fixing pin structure is plugged into the sealing cover plate through the paper feeding body, and a handle groove is provided on the upper end of the sealing cover plate.

[0011] As a further description of the above technical solution:

[0012] One end of the paper feeding body is provided with a long paper feeding hole, and the other end is provided with a long paper discharging hole. The number of the paper feeding motors is two groups.

[0013] As a further description of the above technical solution:

[0014] The size of the tension roller is the same as that of the paper feed shaft, and the size of the first lint-removing roller and the second lint-removing roller are the same as that of the paper feed shaft.

[0015] As a further description of the above technical solution:

[0016] The support column is connected to the paper feeding body by welding, and the first support block is connected to the sealing cover plate by welding.

[0017] As a further description of the above technical solution:

[0018] The height of the first lint-sticking roller is different from that of the second lint-sticking roller. The first lint-sticking roller is rotatably connected to the first support block via a first connecting rod, and the second lint-sticking roller is rotatably connected to the second support block via a second connecting rod.

[0019] The utility model has the following beneficial effects:

[0020] A paper feeding device for a digital printer adjusts the tension of printing paper by arranging a paper feeding roller, a support column, a pressure sensor, a hydraulic rod structure, a support rod, and a tension roller, thereby increasing the stability of printing paper transportation and preventing wrinkles and folds from affecting the aesthetics of digital printing; by arranging a fixing pin structure, a sealing cover plate, a first supporting block, a first fixing device, a first connecting rod, a first lint-removing roller, a second supporting block, a second fixing device, a second connecting rod, and a second lint-removing roller, hair and debris on the upper and lower surfaces of the printing paper can be adsorbed respectively to reduce the impact during printing, and the lint-removing roller can be easily disassembled and replaced after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a paper feeding device for a digital printer proposed by the utility model;

[0022] Figure 2 This is a top plan view of the paper feeding main body of a paper feeding device for a digital printer proposed by the utility model;

[0023] Figure 3 This is a front plan view of a sealing cover plate portion of a paper feeding device for a digital printer proposed by the utility model.

[0024] Legend:

[0025] 1. Paper feeding body; 2. Paper feeding motor; 3. Paper feeding shaft; 4. Paper feeding roller; 5. Support column; 6. Pressure sensor; 7. Hydraulic rod structure; 8. Support rod; 9. Tension roller; 10. Fixed pin structure; 11. Sealing cover plate; 12. First support block; 13. First fixer; 14. First connecting rod; 15. First lint-removing roller; 16. Second support block; 17. Second fixer; 18. Second connecting rod; 19. Second lint-removing roller. DETAILED DESCRIPTION

[0026] 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.

[0027] 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 positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figure 1-3The utility model provides an embodiment: a paper feeding device for a digital printer, comprising a paper feeding body 1, a paper feeding motor 2 is fixedly connected to the front of the paper feeding body 1, a paper feeding shaft 3 is connected to the back of the paper feeding motor 2, a paper feeding roller 4 is fixedly connected to the outer wall of the paper feeding shaft 3, a support column 5 is fixedly connected to the inside of the paper feeding body 1, a pressure sensor 6 is fixedly connected to the upper end of the support column 5, a hydraulic rod structure 7 is fixedly connected to the inside of the paper feeding body 1 near the support column 5, a support rod 8 is fixedly connected to the upper end of the hydraulic rod structure 7, a tension roller 9 is rotatably connected to the outer wall of the support rod 8, a fixed pin structure 10 is plugged into the front of the paper feeding body 1 near the upper end of the paper feeding motor 2, and the paper feeding body 1 is fixedly connected to the upper end of the paper feeding motor 2. A sealing cover plate 11 is clamped on the upper end, and a first support block 12 is fixedly connected to the lower end of the sealing cover plate 11. The first support block 12 is rotatably connected to the first fixer 13 at the front side, and the first support block 12 is rotatably connected to the first connecting rod 14 at the front side close to the inner wall of the first fixer 13. A first hair-sticking roller 15 is fixedly connected to the outer wall of the first connecting rod 14. The lower end of the sealing cover plate 11 away from the first support block 12 is fixedly connected to the second support block 16. The second support block 16 is rotatably connected to the second fixer 17 at the front side, and the second support block 16 is rotatably connected to the second connecting rod 18 at the front side close to the inner wall of the second fixer 17. The second connecting rod 18 is fixedly connected to the second hair-sticking roller 19 on the outer wall.

[0029] A paper feeding device for a digital printer adjusts the tension of printing paper by arranging a paper feeding roller 4, a support column 5, a pressure sensor 6, a hydraulic rod structure 7, a support rod 8, and a tension roller 9, thereby increasing the stability of printing paper transportation and preventing wrinkles and folds from affecting the aesthetics of digital printing; by arranging a fixing pin structure 10, a sealing cover plate 11, a first supporting block 12, a first fixer 13, a first connecting rod 14, a first lint-removing roller 15, a second supporting block 16, a second fixer 17, a second connecting rod 18, and a second lint-removing roller 19, hair and debris on the upper and lower surfaces of the printing paper can be adsorbed respectively to reduce the impact during printing, and the lint-removing roller can be easily disassembled and replaced after use.

[0030] Specifically, the paper feed roller 4 is rotatably connected to the paper feed body 1 via the paper feed shaft 3, and the tension roller 9 is rotatably connected to the paper feed body 1 via the support rod 8, so that the tension of the printing paper can be adjusted, so as to achieve a good effect on paper feeding.

[0031] Specifically, the fixing pin structure 10 is plugged into the sealing cover plate 11 through the paper feeding body 1 , and a handle groove is provided at the upper end of the sealing cover plate 11 to facilitate disassembly and opening of the sealing cover plate 11 .

[0032] Specifically, one end of the paper feeding body 1 is provided with a long paper feeding hole, and the other end is provided with a long paper discharging hole, which is convenient for feeding and discharging printing paper. The number of the paper feeding motors 2 is two groups, which provide power for the movement of printing paper.

[0033] Specifically, the size of the tension roller 9 is the same as that of the paper feed shaft 3, and the size of the first lint-removing roller 15 and the second lint-removing roller 19 are the same as that of the paper feed shaft 3, so that the stability of printing paper transportation is good.

[0034] Specifically, the support column 5 is connected to the paper feeding body 1 by welding, and the first support block 12 is connected to the sealing cover plate 11 by welding, so that the connection is more stable and firm.

[0035] Specifically, the height of the first lint-sticking roller 15 is different from that of the second lint-sticking roller 19. The first lint-sticking roller 15 is rotatably connected to the first support block 12 via the first connecting rod 14, and the second lint-sticking roller 19 is rotatably connected to the second support block 16 via the second connecting rod 18. The hair and debris adhered to the upper and lower surfaces of the printing paper can be adsorbed and cleaned.

[0036] Working principle: When in use, the paper feeding motor 2 transports the printing paper through the paper feeding shaft 3 and the paper feeding roller 4, and then the upper surface of the printing paper will move in contact with the first lint-absorbing roller 15 to absorb hair and debris on its upper surface, and then the printing paper continues to move so that the lower surface moves in contact with the second lint-absorbing roller 19 to absorb and clean the hair and debris on its lower surface, and when the printing paper conveying tension changes, it will fit with the pressure sensor 6, and then the hydraulic rod structure 7 lifts the printing paper upward through the support rod 8 and the tension roller 9, thereby adjusting the tension and making the conveying stable, and through the fixing pin structure 10, the first fixer 13 and the second fixer 17 facilitate the disassembly of the first lint-absorbing roller 15 and the second lint-absorbing roller 19 so that they can be replaced and cleaned.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper feeding device for a digital printer, comprising a paper feeding body (1), characterized in that: The front side of the paper feeding body (1) is fixedly connected to a paper feeding motor (2), the back side of the paper feeding motor (2) is connected to a paper feeding shaft (3), the outer wall of the paper feeding shaft (3) is fixedly connected to a paper feeding roller (4), the inside of the paper feeding body (1) is fixedly connected to a support column (5), the upper end of the support column (5) is fixedly connected to a pressure sensor (6), the inside of the paper feeding body (1) close to the support column (5) is fixedly connected to a hydraulic rod structure (7), the upper end of the hydraulic rod structure (7) is fixedly connected to a support rod (8), the outer wall of the support rod (8) is rotatably connected to a tension roller (9), the front side of the paper feeding body (1) close to the upper end of the paper feeding motor (2) is plugged with a fixed pin structure (10), and the upper end of the paper feeding body (1) is clamped with a sealing cover plate (11), The lower end of the sealing cover plate (11) is fixedly connected to a first support block (12), the front side of the first support block (12) is rotatably connected to a first fixer (13), the front side of the first support block (12) close to the inner wall of the first fixer (13) is rotatably connected to a first connecting rod (14), the outer wall of the first connecting rod (14) is clamped with a first hair-sticking roller (15), the lower end of the sealing cover plate (11) away from the first support block (12) is fixedly connected to a second support block (16), the front side of the second support block (16) is rotatably connected to a second fixer (17), the front side of the second support block (16) close to the inner wall of the second fixer (17) is rotatably connected to a second connecting rod (18), and the outer wall of the second connecting rod (18) is clamped with a second hair-sticking roller (19).

2. A paper feeding device for a digital printer according to claim 1, characterized in that: The paper feeding roller (4) is rotatably connected to the paper feeding body (1) via a paper feeding shaft (3), and the tension roller (9) is rotatably connected to the paper feeding body (1) via a support rod (8).

3. A paper feeding device for a digital printer according to claim 1, characterized in that: The fixing pin structure (10) is plugged into the sealing cover plate (11) through the paper feeding body (1), and a handle groove is provided at the upper end of the sealing cover plate (11).

4. A paper feeding device for a digital printer according to claim 1, characterized in that: One end of the paper feeding body (1) is provided with a long paper feeding hole, and the other end is provided with a long paper discharging hole. The number of the paper feeding motors (2) is two.

5. The paper feeding device for a digital printer according to claim 1, characterized in that: The size of the tension roller (9) is the same as that of the paper feed shaft (3), and the size of the first lint-removing roller (15) and the second lint-removing roller (19) are the same as that of the paper feed shaft (3).

6. A paper feeding device for a digital printer according to claim 1, characterized in that: The support column (5) is connected to the paper feeding body (1) by welding, and the first support block (12) is connected to the sealing cover plate (11) by welding.

7. A paper feeding device for a digital printer according to claim 1, characterized in that: The height of the first lint-sticking roller (15) is different from that of the second lint-sticking roller (19); the first lint-sticking roller (15) is rotatably connected to the first support block (12) via a first connecting rod (14); and the second lint-sticking roller (19) is rotatably connected to the second support block (16) via a second connecting rod (18).

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