Paper double-sided printing device

Abstract

The utility model discloses a paper double-face printing device which comprises a printing machine body, a support is fixedly arranged at the lower end of the printing machine body, a guide plate is fixedly arranged on one side of the support, a conveying table is fixedly arranged on one side of the guide plate, a transmission belt structure is arranged on the conveying table, a limiting frame is fixedly arranged at the lower end of the conveying table, and a two-way lead screw is rotationally arranged in the limiting frame. One end of the bidirectional lead screw penetrates through the limiting frame to be fixedly connected with a first motor fixedly arranged on one side of the limiting frame, two moving seats are connected to the bidirectional lead screw in a threaded mode, the two ends of each moving seat penetrate through the limiting frame to be fixedly connected with a moving arm, one end of each moving arm is fixedly connected with a limiting plate, and four transmission rollers are rotationally arranged on the conveying table; paper conveyed and entering the printing machine body is doubly limited, deflection of the paper is avoided, the positions of the limiting plate and the moving plate are adjustable, the two faces of the conveyed paper can be brushed and cleaned, and meanwhile the cleaning brush is convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided printing of paper, and more specifically, to a double-sided printing device for paper. Background Art

[0002] A paper double-sided printing machine is a printing device that prints on both sides of a paper. It is an efficient and energy-saving printing device. In the process of using the existing paper double-sided printing device, there is no structure to limit the position of the paper, which makes the paper easily skewed during the transmission process. When the skewed paper enters the printing machine for printing, it is easy to have misprints, skews, etc., thus affecting the quality of subsequent printing; secondly, in the process of using the existing paper double-sided printing device, due to the papermaking process or environmental factors, a small amount of dust or paper scraps will adhere to the surface of the paper. If they are not removed, the surface of the printed paper will be exposed to white and the printing will be unclear. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a double-sided printing device for paper to solve the technical problem mentioned in the background technology that the existing double-sided printing device for paper has no structure to limit the position of paper during use, which makes the paper easily skewed during transportation.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a paper double-sided printing device, comprising a printing machine body, a support is fixedly provided at the lower end of the printing machine body, a guide plate is fixedly provided on one side of the support, a conveying platform is fixedly provided on one side of the guide plate, a transmission belt structure is provided on the conveying platform, a limit frame is fixedly provided at the lower end of the conveying platform, a bidirectional lead screw is rotatably provided in the limit frame, one end of the bidirectional lead screw passes through the limit frame and is fixedly connected to a first motor fixedly provided on one side of the limit frame, two moving seats are threadedly connected to the bidirectional lead screw, two ends of each of the moving seats are respectively passed through the limit frame and are fixedly connected to a moving arm, one end of the two moving arms are fixedly connected to the limit plate, and four transmission rollers are rotatably provided on the conveying platform;

[0007] Brackets are fixedly provided at the upper and lower ends of the conveying platform, and a lifting seat is slidably connected in each bracket through a track structure. Both ends of the lifting seat are slidably connected to the conveying platform through the track structure, and a cleaning brush is installed on the lifting seat.

[0008] The utility model is further configured that two second motors are fixedly provided on one side of the conveying platform, and each driving end of the second motor passes through the conveying platform and is fixedly connected to the transmission roller to facilitate the rotation of the transmission roller.

[0009] The utility model is further configured such that a rotating rod is fixedly provided on one side of each transmission roller, one end of the rotating rod passes through the conveying platform and is fixedly connected to a gear, and the upper and lower corresponding gears are meshed and connected to facilitate the two transmission rollers to rotate in opposite directions at the same time.

[0010] The utility model is further configured that a screw rod is rotatably provided on one side of the lifting seat, and the screw rod is threadedly connected to the bracket to facilitate the movement of the screw rod.

[0011] The utility model is further configured that the lifting seat is provided with two limit grooves, each of the limit grooves is fixedly provided with a limit rod, and a movable sleeve outside the limit rod is provided with a spring to facilitate the installation of a cleaning brush.

[0012] The utility model is further configured that an L-shaped fixing block is movably provided on the limiting rod, and the cleaning brush is provided with two fixing grooves matched with the fixing block, so as to facilitate fixing the cleaning brush.

[0013] The utility model is further configured that two movable plates are symmetrically and movably provided on the upper end of the guide plate, so as to limit the position of the paper on the upper end of the guide plate.

[0014] The utility model is further configured that one side of each movable plate is fixedly connected to a movable frame, and one end of the movable frame is fixedly connected to a movable arm to facilitate the movement of the movable plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a paper double-sided printing device having the following

[0017] Beneficial effects:

[0018] 1. The paper on the conveyor table can be limited by cooperating with the printing machine body, support, guide plate, conveyor table, transmission belt structure, limit frame, bidirectional screw, first motor, moving seat, moving arm and limit plate, so as to prevent the paper from being skewed during the transmission process, avoid the misprint and skew of the printed paper, and ensure the printing quality. At the same time, the two limit plates can be adjusted according to the width of the paper.

[0019] 2. Through the cooperation of the transmission roller, the bracket, the lifting seat, the cleaning brush, the second motor, the rotating rod, the gear, the screw, the limit groove, the limit rod, the spring, the fixed block and the fixed groove, the upper and lower surfaces of the paper during the conveying process can be brushed and cleaned, so as to remove the dust or paper scraps adhering to the surface, avoiding the problem of whitening on the surface of the printed paper and unclear printing. At the same time, the cleaning brush is easy to replace, which improves the work efficiency of the cleaning brush maintenance.

[0020] 3. The cleaned paper can be limited by the cooperation of the guide plate, the movable plate and the movable frame. The movable plate cooperates with the limit plate to double-limit the paper, ensuring that the direction of the paper entering the printing machine body is not deviated, thereby ensuring the quality of the printed paper. At the same time, the two movable plates can be adjusted with the limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a paper double-sided printing device in use;

[0022] Figure 2 It is a schematic diagram of the structure of the conveyor platform and its connecting parts when the limit plate is adjusted;

[0023] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the limit frame and its connecting parts when the limit plate is in an adjusted state;

[0024] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the conveying platform and its connecting parts in the cleaning brush adjustment state;

[0025] Figure 5 This is a schematic diagram of the partial cross-section structure when the cleaning brush is installed.

[0026] In the figure: 1. Printing machine body; 2. Support; 3. Guide plate; 4. Conveyor table; 5. Transmission belt structure; 6. Limiting frame; 7. Bidirectional lead screw; 8. First motor; 9. Moving seat; 10. Moving arm; 11. Limiting plate; 12. Transmission roller; 13. Bracket; 14. Lifting seat; 15. Cleaning brush; 16. Second motor; 17. Rotating rod; 18. Gear; 19. Screw; 20. Limiting slot; 21. Limiting rod; 22. Spring; 23. Fixed block; 24. Fixed slot; 25. Moving plate; 26. Moving frame. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5 A paper double-sided printing device comprises a printing machine body 1, a support 2 is fixedly provided at the lower end of the printing machine body 1, a guide plate 3 is fixedly provided on one side of the support 2, a conveying platform 4 is fixedly provided on one side of the guide plate 3, a transmission belt structure 5 is provided on the conveying platform 4, a limit frame 6 is fixedly provided at the lower end of the conveying platform 4, a bidirectional lead screw 7 is rotatably provided in the limit frame 6, one end of the bidirectional lead screw 7 passes through the limit frame 6 and is fixedly connected to a first motor 8 fixedly provided on one side of the limit frame 6, two moving seats 9 are threadedly connected to the bidirectional lead screw 7, both ends of each moving seat 9 pass through the limit frame 6 and are fixedly connected to a moving arm 10, one end of the two moving arms 10 are fixedly connected to a limit plate 11, and four transmission rollers 12 are rotatably provided on the conveying platform 4;

[0031] Brackets 13 are fixedly provided at the upper and lower ends of the conveying platform 4, and a lifting seat 14 is slidably connected to each bracket 13 via a track structure. Both ends of the lifting seat 14 are slidably connected to the conveying platform 4 via a track structure, and a cleaning brush 15 is installed on the lifting seat 14.

[0032] In this embodiment, when double-sided printing is required on the paper, the first motor 8 is started, and the first motor 8 drives the bidirectional screw 7 to rotate. The bidirectional screw 7 is provided with two threaded areas in opposite directions, so that the two moving seats 9 move in adjacent directions at the same time, and the moving seat 9 drives the moving arm 10 to move, and the moving arm 10 drives the limit plate 11 to move, so that the two limit plates 11 adjust the position according to the width of the paper, and the paper to be printed is placed on the transmission belt structure 5, and the transmission belt structure 5 is started to transport the paper. The two limit plates 11 limit the paper when it moves to prevent it from skewing.

[0033] More specifically, the positions of the two limit plates 11 are adjusted by starting the first motor 8, so as to limit the position of the paper during transportation to prevent it from being skewed. After being transported by the transmission belt structure 5, the paper is further transported by the two transmission rollers 12, and the lifting seat 14 can drive the cleaning brush 15 to move, so that the two cleaning brushes 15 are in contact with both sides of the paper. During the transportation of the paper, the two cleaning brushes 15 brush and clean the upper and lower sides of the paper.

[0034] See also Figure 1-5As an implementation method for brushing and cleaning the paper: two second motors 16 are fixedly provided on one side of the conveying platform 4, and each driving end of the second motor 16 passes through the conveying platform 4 and is fixedly connected to the transmission roller 12. A rotating rod 17 is fixedly provided on one side of each transmission roller 12. One end of the rotating rod 17 passes through the conveying platform 4 and is fixedly connected to a gear 18. The upper and lower corresponding gears 18 are meshed and connected. A screw 19 is rotatably provided on one side of the lifting seat 14, and the screw 19 is threadedly connected to the bracket 13. Two limiting grooves 20 are provided on the lifting seat 14, and a limiting rod 21 is fixedly provided in each limiting groove 20. A spring 22 is movably provided on the outer side of the limiting rod 21, and an L-shaped fixed block 23 is movably provided on the limiting rod 21. Two fixing grooves 24 matching the fixed block 23 are provided on the cleaning brush 15.

[0035] At the same time, two second motors 16 are started, and the second motor 16 drives one of the transmission rollers 12 to rotate, and the transmission roller 12 drives the rotating rod 17 to rotate, and the rotating rod 17 drives the gear 18 to rotate, so that the two gears 18 rotate in opposite directions at the same time, and the gear 18 drives the rotating rod 17 and another transmission roller 12 to rotate, so that the upper and lower transmission rollers 12 rotate in opposite directions, so that the four transmission rollers 12 convey the paper, and the screw 19 is turned, and the screw 19 moves in the direction of the paper while rotating, and the screw 19 drives the lifting seat 14 to move along the sliding connection with the bracket 13 and the conveying platform 4, and the lifting seat 14 drives the cleaning brush 15 to move, so that the cleaning brush 15 contacts the paper. When the cleaning brush 15 needs to be replaced, the two fixed blocks 23 are pushed in adjacent directions at the same time, and the fixed blocks 23 move along the limit rod 21, and the spring 22 is compressed, and the fixed blocks 23 are separated from the fixed groove 24. At this time, the cleaning brush 15 can be disassembled, and the replaced cleaning brush 15 can be installed using the opposite operation.

[0036] See also Figure 1-5 As an implementation method for adjusting the position of the movable plate 25: two movable plates 25 are symmetrically and movably provided on the upper end of the guide plate 3, and a movable frame 26 is fixedly connected to one side of each movable plate 25, and one end of the movable frame 26 is fixedly connected to the movable arm 10.

[0037] Specifically, when the movable arm 10 moves, the movable arm 10 will drive the movable frame 26 to move at the same time, and the movable frame 26 will drive the movable plate 25 to move. The two movable plates 25 move on the upper end of the guide plate 3, and the position between the two movable plates 25 is adjusted, so that the paper on the upper end of the guide plate 3 is limited.

[0038] To sum up, when the overall equipment is in use:

[0039] When it is necessary to transport the paper, start the first motor 8, which drives the bidirectional screw 7 to rotate. The bidirectional screw 7 is provided with two threaded areas in opposite directions, so that the two moving seats 9 move in adjacent directions at the same time, and the moving seat 9 drives the moving arm 10 to move, and the moving arm 10 drives the limit plate 11 to move, so that the two limit plates 11 adjust the position according to the width of the paper, and place the paper to be printed on the transmission belt structure 5, and start the transmission belt structure 5 to transport the paper. The two limit plates 11 limit the paper when it moves to prevent it from skewing.

[0040] When the surface of the transported paper needs to be cleaned, the two second motors 16 are started at the same time, the second motor 16 drives one of the transmission rollers 12 to rotate, the transmission roller 12 drives the rotating rod 17 to rotate, the rotating rod 17 drives the gear 18 to rotate, so that the two gears 18 rotate in opposite directions at the same time, the gear 18 drives the rotating rod 17 and the other transmission roller 12 to rotate, so that the upper and lower transmission rollers 12 rotate in opposite directions, so that the four transmission rollers 12 convey the paper, and the screw 19 is rotated. The screw 19 moves in the direction of the paper while rotating, and the screw 19 drives the lifting seat 14 to move along the sliding connection with the bracket 13 and the conveying platform 4. The lifting seat 14 drives the cleaning brush 15 to move, so that the cleaning brush 15 contacts the paper. During the paper conveying process, the two cleaning brushes 15 brush and clean the upper and lower surfaces. When the cleaning brush 15 needs to be replaced, the two fixing blocks 23 are pushed in adjacent directions at the same time. The fixing blocks 23 move along the limiting rod 21, the spring 22 is compressed, and the fixing blocks 23 are separated from the fixing grooves 24. At this time, the cleaning brush 15 can be removed and the replaced cleaning brush 15 can be installed using the opposite operation.

[0041] When the cleaned paper is continuously conveyed, when the movable arm 10 moves, the movable arm 10 drives the movable frame 26 to move at the same time, and the movable frame 26 drives the movable plate 25 to move, and the two movable plates 25 move on the upper end of the guide plate 3, and the position between the two movable plates 25 is adjusted, so that the paper on the upper end of the guide plate 3 is limited. The cleaned paper will be conveyed to the guide plate 3, and moved along the guide plate 3 to the printer body 1 under the limitation of the two movable plates 25 for double-sided printing. The double-sided printing principle of the printer body 1 is the existing technology and will not be described in detail here.

[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A paper double-sided printing device, comprising a printing machine body (1), a support (2) being fixedly provided at the lower end of the printing machine body (1), wherein: A guide plate (3) is fixedly provided on one side of the support (2), a conveying platform (4) is fixedly provided on one side of the guide plate (3), a transmission belt structure (5) is provided on the conveying platform (4), a limit frame (6) is fixedly provided on the lower end of the conveying platform (4), a bidirectional lead screw (7) is rotatably provided in the limit frame (6), one end of the bidirectional lead screw (7) passes through the limit frame (6) and is fixedly connected to a first motor (8) fixedly provided on one side of the limit frame (6), two moving seats (9) are threadedly connected on the bidirectional lead screw (7), two ends of each moving seat (9) pass through the limit frame (6) and are fixedly connected to a moving arm (10), one end of the two moving arms (10) are fixedly connected to a limit plate (11), and four transmission rollers (12) are rotatably provided on the conveying platform (4); Brackets (13) are fixedly provided at the upper and lower ends of the conveying platform (4), and a lifting seat (14) is slidably connected in each bracket (13) via a track structure. Both ends of the lifting seat (14) are slidably connected to the conveying platform (4) via a track structure, and a cleaning brush (15) is installed on the lifting seat (14).

2. A paper double-sided printing device according to claim 1, characterized in that: Two second motors (16) are fixedly provided on one side of the conveying platform (4), and a driving end of each second motor (16) passes through the conveying platform (4) and is fixedly connected to a driving roller (12).

3. A paper double-sided printing device according to claim 2, characterized in that: A rotating rod (17) is fixedly provided on one side of each transmission roller (12), one end of the rotating rod (17) passes through the conveying platform (4) and is fixedly connected to a gear (18), and two corresponding gears (18) are meshed and connected.

4. A paper double-sided printing device according to claim 3, characterized in that: A screw rod (19) is rotatably provided on one side of the lifting seat (14), and the screw rod (19) is threadedly connected to the bracket (13).

5. A paper double-sided printing device according to claim 4, characterized in that: The lifting seat (14) is provided with two limiting grooves (20), each limiting groove (20) is fixedly provided with a limiting rod (21), and a spring (22) is movably sleeved outside the limiting rod (21).

6. A paper double-sided printing device according to claim 5, characterized in that: An L-shaped fixing block (23) is movably provided on the limiting rod (21), and two fixing grooves (24) matching with the fixing block (23) are provided on the cleaning brush (15).

7. A paper double-sided printing device according to any one of claims 1 or 2, characterized in that: Two movable plates (25) are symmetrically and movably provided on the upper end of the guide plate (3).

8. The double-sided printing device for paper according to claim 7, characterized in that: One side of each movable plate (25) is fixedly connected to a movable frame (26), and one end of the movable frame (26) is fixedly connected to a movable arm (10).

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