Paper guide structure of laser printer

Abstract

The utility model relates to the field of laser printing, in particular to a paper guide structure of a laser printer, which comprises a heightening table, a paper output mechanism mounted at one end of the heightening table and used for outputting paper, and a paper storage mechanism used for storing a large amount of paper. Before the device works, through threaded connection between first screws and sliding strip frames and sliding connection between the sliding strip frames and a sliding rail frame, the two first screws are matched with opposite thread rotating directions, and after a double-output-shaft motor drives the two first screws to rotate, the two sliding strip frames can move in opposite or opposite directions; the distance between the two sliding strip frames is adjusted, and an adjustable limiting structure on the upper paper storage mechanism is matched, so that the device can be suitable for most types of paper, and the applicability of the device is better.

Description

Technical Field

[0001] The utility model relates to the field of laser printing, in particular to a paper guiding structure of a laser printer. Background Art

[0002] Laser printing is a printing technology developed since the 1960s, and the first laser printer was born in 1971. Laser printing technology uses a laser beam to quickly "project" digital graphics or documents onto a photosensitive surface (photosensitive drum). Electron discharge occurs at the location hit by the laser beam, and then due to static electricity, it attracts some fine "toner" like a magnet, and the printing effect comes out.

[0003] After searching the patent document with the announcement number CN219546204U, the patent document discloses "a paper guide structure for a laser printer, which can drive the first paper guide roller to rotate through the operation of a driving motor, and under the action of a transmission component, the rotation of the first paper guide roller can drive the second paper guide roller to rotate, so that the first paper guide roller and the second paper guide roller rotate in the same direction and at the same speed, and the paper can be discharged in accordance with the trend, and the paper is discharged under the smooth sliding guidance of the guide plate, and the gas spring can perform elastic reset and automatically adjust the guide plate, and prevent the paper from returning due to a fault through a blocking block. If the paper backflow occurs, a piece of paper can be timely clamped through the blocking block to block the paper guide frame. When the internal fault of the paper guide frame occurs, the operation of the double-rod hydraulic cylinder can drive the two clamps to move, clamp the paper to prevent movement, and under the action of the rubber pad, the degree of wrinkle wear on the paper is reduced for subsequent use, and the smooth roller in the guide plate can smoothly discharge the paper, and support the guided transportation of the paper from a large area in the middle of the paper guide frame";

[0004] Different paper models are used according to different needs. There are many types of existing paper models, such as the commonly used A1, A2, A3 and the most common A4 paper. When printing, the appropriate paper model is selected according to the printed object. However, the above-mentioned device and most existing paper guide structures are difficult to adjust according to the paper model, which makes the device unable to guide other types of paper as needed, thereby making the applicability of the device poor. Utility Model Content

[0005] The purpose of the utility model is to provide a paper guide structure for a laser printer in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A laser printer paper guide structure comprises a raised platform, one end of which is provided with a paper output mechanism for outputting paper, and a paper storage mechanism for storing a large amount of paper;

[0008] The paper storage mechanism includes two slide rail frames, which are respectively fixed on both sides of the upper end of the raising platform, a fixed plate is fixed in the middle of the two slide rail frames, a double-output shaft motor is installed in the middle of the raising platform, and the two output ends of the double-output shaft motor are fixed with a first screw rod, and the thread rotation directions of the two first screw rods are opposite. The peripheries of the two first screw rods are threadedly connected with sliding bar frames, and the two ends of the sliding bar frames are respectively slidably connected to the two slide rail frames, and two inner extension plates are fixed to the corresponding ends of the two sliding bar frames, a triangular upper extension frame is fixed at one end of the two sliding bar frames, and an upper extension plate is fixed at one end of the fixed plate, and springs are arranged on one side of the triangular upper extension frame and the upper extension plate, and the springs are respectively fixed to the corresponding sliding bar frames and the fixed plate, and an inclined plate is fixed to the upper end of the spring, and the inclined plate is slidably connected to the corresponding triangular upper extension frame and the upper extension plate.

[0009] Preferably, the two inner extension plates on the two sliding bar racks are arranged alternately, and the two sliding bar racks are each provided with through grooves corresponding to the two inner extension plates on the other sliding bar rack.

[0010] Preferably, the uppermost ends of the three inclined panels when not subject to force are flush with the uppermost end of the upper extension plate, and the widths of the three inclined panels are respectively the same as the widths of the corresponding sliding bars and the fixed plate.

[0011] Preferably, the paper storage mechanism further comprises a second screw, which is rotatably connected to the interior of the fixed plate, the first motor is installed at the input end of the second screw, the outer periphery of the second screw is threadably connected to a sliding plate, and the sliding plate is slidably connected to the fixed plate.

[0012] Preferably: the paper discharge mechanism includes two side extension frames, which are respectively fixed at the front and rear ends of one side of the raised platform, a rotating rod is rotatably connected between the two side extension frames, a second motor is installed at the input end of the rotating rod, an output roller is fixed in the middle of the rotating rod, short rollers are arranged at the front and rear of the output roller, and the short rollers are slidably connected to the rotating rod, the two short rollers are located between the two triangular upper extension frames, and the lowermost ends of the short rollers are lower than the uppermost ends of the triangular upper extension frames.

[0013] Preferably: the outer rings of the output roller and the short roller are both provided with a rubber layer.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] Before operation, the device is connected by threading with the first screw and the sliding bar frame, and by sliding connection with the sliding bar frame, and the threads of the two first screws rotate in opposite directions. When the double-output shaft motor drives the two first screws to rotate, the two sliding bar frames can move in relative or opposite directions, so that the distance between the two sliding bar frames can be adjusted. Combined with the adjustable limit structure on the paper storage mechanism, the device can be applied to most types of paper, thereby making the device more applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a structural schematic diagram of a paper guide structure of a laser printer described in the utility model;

[0018] Figure 2 It is a structural schematic diagram of a paper guide structure and paper storage mechanism of a laser printer described in the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of a paper guide structure and paper storage mechanism of a laser printer described in the utility model;

[0020] Figure 4 The utility model is a schematic structural diagram of a paper discharging mechanism of a laser printer paper guide structure.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Raising platform; 11. Base frame; 12. Fixing bolts; 2. Slide rail frame; 21. Fixing plate; 22. Double-output shaft motor; 23. First screw rod; 24. Sliding bar frame; 25. Inner extension plate; 26. Triangular upper extension frame; 27. Upper extension plate; 28. Spring; 29. ​​Inclined panel; 210. Second screw rod; 211. First motor; 212. Sliding plate; 3. Side extension frame; 31. Rotating rod; 32. Second motor; 33. Output roller; 34. Short roller. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 4 As shown, a paper guide structure of a laser printer includes a raised platform 1, one end of which is equipped with a paper output mechanism for outputting paper, and also includes a paper storage mechanism for storing a large amount of paper.

[0027] Two base frames 11 are fixed at the lower end of the raising platform 1, and a plurality of fixing bolts 12 are arranged in the middle of the base frames 11; the fixing bolts 12 can be used to fix the device to a suitable position for easy operation.

[0028] The paper storage mechanism includes two slide rail frames 2, which are respectively fixed on both sides of the upper end of the raising platform 1, a fixed plate 21 is fixed in the middle of the two slide rail frames 2, a double-output shaft motor 22 is installed in the middle of the raising platform 1, and the two output ends of the double-output shaft motor 22 are fixed with first screws 23, the threads of the two first screws 23 are opposite, and the outer peripheries of the two first screws 23 are threadedly connected with sliding bar frames 24, and the two ends of the sliding bar frames 24 are respectively slidably connected to the two slide rail frames 2, and the corresponding ends of the two sliding bar frames 24 are fixed with two inner extension plates 25, and the two sliding The two inner extension plates 25 on the bar frame 24 are arranged alternately, and the two sliding bar frames 24 are each provided with a through groove corresponding to the two inner extension plates 25 on the other sliding bar frame 24. A triangular upper extension frame 26 is fixed to one end of the two sliding bar frames 24, and an upper extension plate 27 is fixed to one end of the fixed plate 21. A spring 28 is provided on one side of the triangular upper extension frame 26 and the upper extension plate 27, and the spring 28 is respectively fixed to the corresponding sliding bar frame 24 and the fixed plate 21. An inclined plate 29 is fixed to the upper end of the spring 28, and the inclined plate 29 slides with the corresponding triangular upper extension frame 26 and the upper extension plate 27. The upper ends of the three inclined panels 29 when not under force are flush with the upper ends of the upper extension plate 27, and the widths of the three inclined panels 29 are respectively the same as the widths of the corresponding sliding bar frames 24 and the fixed plate 21. The fixed plate 21 is internally rotatably connected with a second screw rod 210, and the input end of the second screw rod 210 is installed with a first motor 211. The outer periphery of the second screw rod 210 is threadedly connected with a sliding plate 212, and the sliding plate 212 is slidably connected to the fixed plate 21; the first screw rod 23 is threadedly connected to the sliding bar frame 24, and the sliding bar frame 24 is threadedly connected to the slide rail frame. 2, and the threads of the two first screw rods 23 are rotated in opposite directions. When the double-output shaft motor 22 drives the two first screw rods 23 to rotate, the two sliding bar frames 24 can move in relative or opposite directions, so that the distance between the two sliding bar frames 24 can be adjusted. Through the threaded connection between the sliding plate 212 and the second screw rod 210 and the sliding connection between the sliding plate 212 and the fixed plate 21, when the first motor 211 drives the second screw rod 210 to rotate, the sliding plate 212 can move, so that the device can store different types of paper for standby.

[0029] The paper discharging mechanism includes two side extension frames 3, which are respectively fixed at the front and rear ends of one side of the raising platform 1. A rotating rod 31 is rotatably connected between the two side extension frames 3. A second motor 32 is installed at the input end of the rotating rod 31. An output roller 33 is fixed in the middle of the rotating rod 31. Short rollers 34 are arranged at the front and rear of the output roller 33, and the short rollers 34 are slidably connected to the rotating rod 31. The outer rings of the output roller 33 and the short rollers 34 are both provided with rubber layers. The two short rollers 34 are located between the two triangular upper extension frames 26, and the short rollers 34 are at the rear. The lower end is lower than the upper end of the triangular upper extension frame 26; by starting the second motor 32, the output roller 33 and the short roller 34 on the rotating rod 31 can be rotated, so that the rotating output roller 33 and the short roller 34 can bring out the uppermost paper on the inclined plate 29, and the two short rollers 34 are located between the two triangular upper extension frames 26 and the lower ends of the short rollers 34 are lower than the upper ends of the triangular upper extension frames 26. When the two triangular upper extension frames 26 move with the two sliding bars 24, the two short rollers 34 can be driven to move.

[0030] Working principle: Before the device is operated, the device is first adjusted according to the type of paper to be used. Through the threaded connection between the first screw 23 and the sliding bar frame 24 and the sliding connection between the sliding bar frame 24 and the slide rail frame 2, and the two first screws 23 have opposite thread rotation directions, when the double-output shaft motor 22 drives the two first screws 23 to rotate, the two sliding bar frames 24 can be moved in relative or opposite directions, so that the distance between the two sliding bar frames 24 can be adjusted. At the same time, the two short rollers 34 are located between the two triangular upper extension frames 26, and the lower end of the short roller 34 is lower than the upper end of the triangular upper extension frame 26. When the two triangular upper extension frames 26 move with the two sliding bar frames 24, the two short rollers 34 can be driven to move, and then Through the threaded connection between the sliding plate 212 and the second screw 210 and the sliding connection between the sliding plate 212 and the fixed plate 21, when the first motor 211 drives the second screw 210 to rotate, the sliding plate 212 can be moved, so that the device can store different types of paper for standby. After the device is adjusted, the three inclined panels 29 are pressed downward by the elasticity of the spring 28, and then one end of the stacked paper is placed between the inclined panel 29 and the output roller 33 and the short roller 34. After the preparation work is completed, the output roller 33 and the short roller 34 on the rotating rod 31 can be rotated by starting the second motor 32, so that the rotating output roller 33 and the short roller 34 can bring out the uppermost paper on the inclined panel 29, and the paper is guided and output.

[0031] 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 guide structure for a laser printer, comprising a raised platform (1), one end of which is mounted a paper discharge mechanism for outputting paper, characterized in that: Also included is a paper storage mechanism for storing large quantities of paper; The paper storage mechanism comprises two slide rail frames (2), the two slide rail frames (2) are respectively fixed on both sides of the upper end of the raising platform (1), a fixing plate (21) is fixed in the middle of the two slide rail frames (2), a double-output shaft motor (22) is installed in the middle of the raising platform (1), the two output ends of the double-output shaft motor (22) are both fixed with a first screw rod (23), the thread rotation directions of the two first screw rods (23) are opposite, the outer peripheries of the two first screw rods (23) are both threadedly connected with a sliding bar frame (24), and the two ends of the sliding bar frame (24) are respectively slidably connected to the two slide rail frames (2), and the two sliding bars are Two inner extension plates (25) are fixed to the corresponding ends of the frame (24), a triangular upper extension frame (26) is fixed to one end of the two sliding bar frames (24), an upper extension plate (27) is fixed to one end of the fixed plate (21), a spring (28) is provided on one side of the triangular upper extension frame (26) and the upper extension plate (27), and the spring (28) is respectively fixed to the corresponding sliding bar frame (24) and the fixed plate (21), an inclined panel (29) is fixed to the upper end of the spring (28), and the inclined panel (29) is slidably connected to the corresponding triangular upper extension frame (26) and the upper extension plate (27).

2. A laser printer paper guide structure according to claim 1, characterized in that: The two inner extension plates (25) on the two sliding bar frames (24) are arranged in a staggered manner, and each of the two sliding bar frames (24) is provided with a through groove corresponding to the two inner extension plates (25) on the other sliding bar frame (24).

3. A laser printer paper guide structure according to claim 1, characterized in that: The uppermost ends of the three inclined panels (29) are flush with the uppermost end of the upper extension plate (27) when no force is applied, and the widths of the three inclined panels (29) are respectively the same as the widths of the corresponding sliding bars (24) and the fixed plate (21).

4. A laser printer paper guide structure according to claim 1, characterized in that: The paper storage mechanism also includes a second screw rod (210), the second screw rod (210) is rotatably connected to the inside of the fixed plate (21), a first motor (211) is installed at the input end of the second screw rod (210), a sliding plate (212) is threadedly connected to the outer periphery of the second screw rod (210), and the sliding plate (212) is slidably connected to the fixed plate (21).

5. A laser printer paper guide structure according to claim 1, characterized in that: The paper discharging mechanism comprises two side extension frames (3), the side extension frames (3) are respectively fixed at the front and rear ends of one side of the raising platform (1), a rotating rod (31) is rotatably connected between the two side extension frames (3), a second motor (32) is installed at the input end of the rotating rod (31), an output roller (33) is fixed in the middle of the rotating rod (31), short rollers (34) are arranged at the front and rear of the output roller (33), and the short rollers (34) are slidably connected to the rotating rod (31), the two short rollers (34) are located between the two triangular upper extension frames (26), and the lower end of the short roller (34) is lower than the upper end of the triangular upper extension frame (26).

6. A laser printer paper guide structure according to claim 5, characterized in that: The outer rings of the output roller (33) and the short roller (34) are both provided with a rubber layer.

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