Paper output mechanism of printer

Abstract

The utility model relates to the technical field of printers, in particular to a paper output mechanism of a printer, which comprises a printer body and a paper output mechanism positioned at a paper outlet of the printer body. The paper outlet mechanism comprises two connecting plates which are symmetrically distributed on the two sides of the interior of the paper outlet of the printer body, and the two connecting plates are fixedly installed on the two sides of the interior of the paper outlet of the printer body through bolts respectively. The paper feeding device has the beneficial effects that by arranging the paper discharging mechanism, output paper can be flattened during use, meanwhile, the flattened paper is cooled, and the situation that edges of the paper are warped is avoided, so that the situation that discharging is affected, or the situation that subsequent paper is inserted below the edges of previous paper, the stacking sequence of the paper is disordered, and use is affected is avoided; in the paper output process, the first roller which is rotating to output the paper is cleaned, the situation of carbon deposition is avoided, it is ensured that the output paper is evenly stressed, and therefore the situation that the paper is wrinkled is avoided.

Description

Technical Field

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

[0002] A printer is one of the output devices of a computer. It is used to print the results of computer processing on related media. There are three indicators to measure the quality of a printer: print resolution, print speed and noise. There are many types of printers. According to whether the printing element hits the paper, they are divided into impact printers and non-impact printers. According to the structure of printed characters, they are divided into full-width character printers and dot matrix character printers. According to the way a line of characters is formed on paper, they are divided into serial printers and line printers. According to the technology used, they are divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic, light-emitting diode and other printers.

[0003] A printer generally includes a paper output mechanism for outputting printed paper.

[0004] The paper output mechanism of the printer and the printer disclosed in Chinese patent CN219949999U, the paper output mechanism includes a first roller, a second roller, an elastic member, two roller mounting seats and two elastic member mounting seats, the first roller and the second roller are respectively on the upper and lower sides of the paper outlet, a through hole is arranged between the two roller mounting seats, the first roller is arranged on the two roller mounting seats and partially passes through the through hole, the elastic member includes a connecting arm, two mounting parts and two elastic arms, the two mounting parts are respectively connected to the two ends of the connecting arm, the elastic arm is connected to one end of the mounting part away from the connecting arm, the distance from the mounting part to the connecting arm is less than the distance from the mounting part to the free end of the elastic arm, the mounting part is connected to the corresponding elastic member mounting seat, the connecting arm is arranged on the side facing away from the through hole, the elastic arm is matched with the wheel shaft of the first roller, so that the first roller and the wheel shaft can float elastically up and down; the printer includes the above-mentioned paper output mechanism.

[0005] However, the paper output mechanism and the prior art still have the following problems in actual use:

[0006] After printing on paper in the printer, the ink needs to be dried. During the baking process, the paper will be deformed by the heat and will warp. During continuous printing, subsequent paper may curl against the edge of previously output paper, affecting output, or subsequent paper may be inserted under the edge of previously output paper, causing the order of paper stacking to become chaotic, affecting usage. As the usage time increases, the toner that is not completely dry on the printed paper may adhere to the roller that outputs the paper, causing carbon deposition. Once carbon deposits form on the roller that outputs the paper, the output paper will be subjected to uneven force, resulting in paper wrinkles.

[0007] Therefore, the present application proposes a paper output mechanism of a printer to solve the above problem. Utility Model Content

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background technology, and provide a paper output mechanism for a printer.

[0009] The purpose of the utility model is achieved by the following technical solution: a paper output mechanism of a printer, comprising a printer body, and also comprising a paper output mechanism located at a paper output port of the printer body;

[0010] The paper discharge mechanism includes two connecting plates symmetrically distributed on both sides of the paper discharge port of the printer body, the two connecting plates are respectively fixedly installed on both sides of the paper discharge port of the printer body by bolts, an output assembly, an auxiliary flattening assembly and a cleaning assembly are arranged between the two connecting plates, and a rotating assembly for driving the cleaning assembly to reciprocate is also arranged between the two connecting plates;

[0011] The output assembly includes a first connecting tube, a first roller is fixedly connected to the first connecting tube, a driving member is arranged at one end of the first connecting tube, a first gear is fixedly connected to one end of the first connecting tube away from the driving member, a first rotating joint connected to the first connecting tube is arranged at one end of the first gear away from the first connecting tube, an air distribution pipe is arranged at one end of the first rotating joint away from the first gear, and an air pump is arranged at one end of the air distribution pipe away from the first rotating joint;

[0012] The auxiliary flattening assembly includes a second connecting tube, a second roller is fixedly connected to the second connecting tube, both ends of the second connecting tube are rotatably connected to connecting blocks, an elastic member is arranged on the connecting block, and a second rotating joint is arranged at one end of the second connecting tube.

[0013] Preferably, a first connecting hole, a second connecting hole and a first sliding groove are formed on the connecting plate.

[0014] Preferably, the cleaning assembly comprises a cleaning brush, the bristles of the cleaning brush are in contact with the first roller, a connecting ring is fixedly connected to the cleaning brush, and a sliding block is arranged inside the connecting ring.

[0015] Preferably, the rotating assembly includes a connecting shaft, which is rotatably connected to the connecting plate through a first connecting hole, one end of the connecting shaft is fixedly connected to a second gear, the second gear is meshed with the first gear, a second slide groove is opened on the connecting shaft, the slider is located inside the second slide groove, and the connecting ring is slidably connected to the connecting shaft through the slider.

[0016] Preferably, the first connecting pipe is rotatably connected to the connecting plate through the second connecting hole.

[0017] Preferably, the radius of the first roller close to the middle of the first connecting tube is greater than the radius of the first roller close to the end of the first connecting tube.

[0018] Preferably, a plurality of air outlet holes are provided on the second connecting tube and the first connecting tube, and the radius of the second roller close to the middle of the second connecting tube is greater than the radius of the second roller close to the end of the second connecting tube.

[0019] Preferably, the second roller and the first roller are both provided with spiral grooves with opposite spiral directions, and the position of the second roller corresponds to the position of the first roller.

[0020] Preferably, the connecting block is slidably connected to the connecting plate via a first sliding groove.

[0021] Preferably, one end of the second rotary joint away from the second connecting pipe is connected to the gas distribution pipe.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The paper output mechanism of the printer is provided with a paper output mechanism, so that the output paper can be flattened when in use, and the flattened paper can be cooled down at the same time to avoid the paper from curling up, thereby avoiding the situation in which the subsequent paper collides with the edge of the previously output paper and curls up during continuous printing, thereby affecting the output, or the subsequent paper is inserted under the edge of the previously output paper, thereby confusing the order of paper stacking and affecting the use. During the paper output process, the first roller that is rotating to output the paper is cleaned to avoid the carbon powder that is not completely dried on the paper from adhering to the first roller of the output paper and causing carbon deposition, thereby ensuring that the output paper is evenly stressed, thereby avoiding the situation in which the paper is wrinkled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

[0026] Figure 2 It is a structural schematic diagram of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the output component of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the auxiliary flattening component of the utility model;

[0030] Figure 6 for Figure 5 A schematic diagram of the structure enlargement at the center A;

[0031] Figure 7 It is a structural schematic diagram of the cleaning component of the utility model;

[0032] Figure 8 It is a structural schematic diagram of the rotating assembly of the utility model.

[0033] In the figure: 1. printer body; 2. paper discharge mechanism; 21. connecting plate; 211. first connecting hole; 212. second connecting hole; 213. first slide groove; 22. output assembly; 221. first connecting pipe; 222. first roller; 223. driving member; 224. first gear; 225. first rotary joint; 226. air distribution pipe; 227. air pump; 23. auxiliary flattening assembly; 231. second connecting pipe; 232. second roller; 233. connecting block; 234. elastic member; 235. second rotary joint; 24. cleaning assembly; 241. cleaning brush; 242. connecting ring; 243. slider; 25. rotating assembly; 251. connecting shaft; 252. second gear; 253. second slide groove. DETAILED DESCRIPTION

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] Additional aspects and advantages of the present invention will be further described below in conjunction with the accompanying drawings, and some will become apparent from the following description or be learned through practice of the present invention.

[0037] like Figure 1 As shown, a paper output mechanism of a printer includes a printer body 1 and a paper output mechanism 2 located at a paper output port of the printer body 1;

[0038] like Figure 1 and Figure 2 As shown, the paper discharge mechanism 2 includes two connecting plates 21 symmetrically distributed on both sides of the paper discharge port of the printer body 1. The two connecting plates 21 are respectively fixedly installed on both sides of the paper discharge port of the printer body 1 by bolts. An output component 22, an auxiliary flattening component 23 and a cleaning component 24 are arranged between the two connecting plates 21. A rotating component 25 for driving the cleaning component 24 to reciprocate is also arranged between the two connecting plates 21.

[0039] like Figure 3 As shown, the connecting plate 21 is provided with a first connecting hole 211 , a second connecting hole 212 and a first sliding groove 213 .

[0040] like Figure 2-4 As shown, the output component 22 includes a first connecting tube 221, a first roller 222, a driving member 223, a first gear 224, a first rotating joint 225, an air distribution pipe 226 and an air pump 227. The first connecting tube 221 is rotatably connected to the connecting plate 21 through the second connecting hole 212. The first connecting tube 221 is fixedly connected to the first roller 222. The radius of the first roller 222 close to the middle of the first connecting tube 221 is greater than the radius of the first roller 222 close to the end of the first connecting tube 221. The driving member 223 is provided at one end of the first connecting tube 221. The first gear 224 is fixedly connected to the end of the first connecting tube 221 away from the driving member 223. The first rotating joint 225 connected to the first connecting tube 221 is provided at the end of the first gear 224 away from the first connecting tube 221. The air distribution pipe 226 is provided at the end of the first rotating joint 225 away from the first gear 224. The air pump 227 is provided at the end of the air distribution pipe 226 away from the first rotating joint 225.

[0041] like Figure 2-6 As shown, the auxiliary flattening assembly 23 includes a second connecting tube 231, a second roller 232, a connecting block 233, an elastic member 234 and a second rotating joint 235. The second connecting tube 231 and the first connecting tube 221 are both provided with a plurality of air outlet holes. The second connecting tube 231 is fixedly connected with the second roller 232. The radius of the second roller 232 near the middle of the second connecting tube 231 is greater than the radius of the second roller 232 near the end of the second connecting tube 231. The second roller 232 and the first roller 222 are both provided with spiral grooves, and the spiral grooves are In opposite directions, the position of the second roller 232 corresponds to the position of the first roller 222, both ends of the second connecting tube 231 are rotatably connected with connecting blocks 233, the connecting block 233 is slidably connected to the connecting plate 21 through the first slide groove 213, an elastic member 234 is provided on the connecting block 233, the elastic member 234 is located between the connecting block 233 and the connecting plate 21, a second rotating joint 235 is provided at one end of the second connecting tube 231, and the second rotating joint 235 is connected to the gas distribution pipe 226 at one end away from the second connecting tube 231.

[0042] like Figure 2 , Figure 4 and Figure 7 As shown, the cleaning assembly 24 includes a cleaning brush 241, a connecting ring 242 and a slider 243. The bristles of the cleaning brush 241 are in contact with the first roller 222. The cleaning brush 241 is fixedly connected to the connecting ring 242, and a slider 243 is arranged inside the connecting ring 242.

[0043] like Figure 2 , Figure 7 and Figure 8 As shown, the rotating assembly 25 includes a connecting shaft 251, a second gear 252 and a second slide groove 253. The connecting shaft 251 is rotatably connected to the connecting plate 21 through the first connecting hole 211. One end of the connecting shaft 251 is fixedly connected to the second gear 252. The second gear 252 is meshed with the first gear 224. The connecting shaft 251 is provided with a second slide groove 253. The second slide groove 253 includes two spiral grooves symmetrically distributed on the connecting shaft 251. The slider 243 is located inside the second slide groove 253. The connecting ring 242 is slidably connected to the connecting shaft 251 through the slider 243.

[0044] The working process is as follows:

[0045] S1. By setting the paper discharge mechanism 2, after the printer body 1 finishes printing on the paper, the paper reaches the paper discharge port, and the driving member 223 is started. The driving member 223 drives the first roller 222 and the first gear 224 to rotate through the first connecting tube 221, and the first roller 222 discharges the paper;

[0046] S2, the elastic member 234 contracts according to the thickness of the paper, so that the paper can pass between the first roller 222 and the second roller 232;

[0047] S3. Since the radius of the first roller 222 near the middle of the first connecting tube 221 is larger than the radius of the first roller 222 near the end of the first connecting tube 221, and the radius of the second roller 232 near the middle of the second connecting tube 231 is larger than the radius of the second roller 232 near the end of the second connecting tube 231, the second roller 232 and the first roller 222 are both provided with spiral grooves, and the spiral directions are opposite, when the paper passes between the second roller 232 and the first roller 222, it will be subjected to forces to both sides, so that the paper is flattened;

[0048] S4, start the air pump 227 at the same time, the gas output by the air pump 227 enters the first connecting tube 221 and the second connecting tube 231 through the gas distribution pipe 226, the first rotary joint 225 and the second rotary joint 235 respectively, and is blown out from the air outlet holes on the first connecting tube 221 and the second connecting tube 231 to cool down the paper flattened by the first roller 222 and the second roller 232 to prevent the paper from warping, thereby preventing the subsequent paper from curling against the edge of the previously output paper during continuous printing, affecting the output, or the subsequent paper from being inserted under the edge of the previously output paper, causing the paper stacking order to be disordered, affecting the use;

[0049] S5. The first gear 224 drives the connecting shaft 251 to rotate through the second gear 252. During the rotation of the connecting shaft 251, the slider 243 is driven to slide in the second slide groove 253. The slider 243 drives the cleaning brush 241 to reciprocate along the axial direction of the connecting shaft 251 through the connecting ring 242 to clean the first roller 222 that is rotating to output the paper, so as to prevent the carbon powder that is not completely dried on the paper from adhering to the first roller 222 of the output paper and causing carbon deposition, thereby ensuring that the output paper is evenly stressed, thereby avoiding paper wrinkles.

[0050] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A paper output mechanism of a printer, comprising a printer body (1), characterized in that: It also includes a paper discharge mechanism (2) located at the paper discharge port of the printer body (1); The paper discharge mechanism (2) comprises two connecting plates (21) symmetrically distributed on both sides of the paper discharge port of the printer body (1); an output assembly (22), an auxiliary flattening assembly (23) and a cleaning assembly (24) are arranged between the two connecting plates (21); and a rotating assembly (25) for driving the cleaning assembly (24) to reciprocate is also arranged between the two connecting plates (21); The output assembly (22) comprises a first connecting tube (221), to which a first roller (222) is fixedly connected, a driving member (223) is provided at one end of the first connecting tube (221), a first gear (224) is fixedly connected at one end of the first connecting tube (221) away from the driving member (223), a first rotating joint (225) in communication with the first connecting tube (221) is provided at one end of the first gear (224) away from the first connecting tube (221), an air distribution pipe (226) is provided at one end of the first rotating joint (225) away from the first gear (224), and an air pump (227) is provided at one end of the air distribution pipe (226) away from the first rotating joint (225); The auxiliary flattening assembly (23) comprises a second connecting tube (231), to which a second roller (232) is fixedly connected, both ends of the second connecting tube (231) are rotatably connected to connecting blocks (233), an elastic member (234) is provided on the connecting block (233), and one end of the second connecting tube (231) is provided with a second rotating joint (235).

2. A paper output mechanism for a printer according to claim 1, characterized in that: The connecting plate (21) is provided with a first connecting hole (211), a second connecting hole (212) and a first sliding groove (213).

3. A paper output mechanism for a printer according to claim 2, characterized in that: The cleaning assembly (24) comprises a cleaning brush (241), the bristles of which are in contact with the first roller (222), a connecting ring (242) being fixedly connected to the cleaning brush (241), and a sliding block (243) being arranged inside the connecting ring (242).

4. The paper output mechanism of a printer according to claim 3, characterized in that: The rotating assembly (25) comprises a connecting shaft (251), the connecting shaft (251) is rotatably connected to the connecting plate (21) through the first connecting hole (211), one end of the connecting shaft (251) is fixedly connected to a second gear (252), the second gear (252) and the first gear (224) are meshed with each other, a second sliding groove (253) is provided on the connecting shaft (251), the slider (243) is located inside the second sliding groove (253), and the connecting ring (242) is slidably connected to the connecting shaft (251) through the slider (243).

5. The paper output mechanism of a printer according to claim 2, characterized in that: The first connecting pipe (221) is rotatably connected to the connecting plate (21) through the second connecting hole (212).

6. The paper output mechanism of a printer according to claim 1, characterized in that: The radius of the first roller (222) close to the middle of the first connecting tube (221) is greater than the radius of the first roller (222) close to the end of the first connecting tube (221).

7. The paper output mechanism of a printer according to claim 1, characterized in that: The second connecting tube (231) and the first connecting tube (221) are both provided with a plurality of air outlet holes, and the radius of the second roller (232) close to the middle of the second connecting tube (231) is greater than the radius of the second roller (232) close to the end of the second connecting tube (231).

8. The paper output mechanism of a printer according to claim 1, characterized in that: The second roller (232) and the first roller (222) are both provided with spiral grooves, and the spiral directions are opposite. The position of the second roller (232) corresponds to the position of the first roller (222).

9. The paper output mechanism of a printer according to claim 2, characterized in that: The connecting block (233) is slidably connected to the connecting plate (21) via the first sliding groove (213).

10. The paper output mechanism of a printer according to claim 1, characterized in that: One end of the second rotary joint (235) away from the second connecting pipe (231) is connected to the gas distribution pipe (226).

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