Parallel paper feeding printing equipment

Abstract

The utility model relates to the technical field of printers, in particular to a parallel paper feeding printing device, which comprises a printer body, a fixing frame, a pickup roller, a static eliminating roller, a lug plate and a locking mechanism. A paper feeding supporting plate is arranged on the printer body, and a mounting plate is arranged on the paper feeding supporting plate; a spline shaft is rotationally arranged on the fixing frame, a motor for driving the spline shaft to rotate is arranged on the fixing frame, and a bracket is arranged on the mounting plate; the paper pickup wheel is sleeved on the spline shaft, and two ends of the paper pickup wheel are rotationally connected with the fixed frame and the bracket respectively; the static electricity removing roller is rotationally connected with the fixed frame and is in contact with the pickup roller; the lug plate is arranged on the mounting plate, a rotating shaft is fixedly arranged on the lug plate, a sleeve rotationally connected with the rotating shaft sleeves the rotating shaft, the fixing frame is connected with the sleeve, and a grip is arranged on the sleeve; the locking mechanism is connected with the grip and the rotating shaft. According to the utility model, paper jam can be quickly processed, the pickup roller is quickly detached and replaced, and meanwhile, the slippage between the pickup roller and paper can be effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a parallel paper feeding printing device. Background Technology

[0002] A printer is a computer output device that permanently outputs data stored on a computer into paper or transparencies in the form of text or graphics. Existing printers frequently experience paper jams due to paper-related issues, and troubleshooting paper jams is time-consuming and laborious.

[0003] Chinese patent CN113978142B discloses an anti-paper jam printer, including a printer body and a paper feed shaft rotatably connected to the printer body. The paper feed shaft is provided with multiple paper feed rollers, and multiple paper feed rollers are provided below the paper feed rollers. Paper passes between the paper feed rollers and the paper feed rollers. The printer body is provided with a lifting mechanism, a cutting mechanism, and a cleaning mechanism in sequence along the paper output direction. The cutting mechanism includes a paper cutter, and the cleaning mechanism includes a cleaning component for cleaning the paper feed rollers. The lifting mechanism is used to simultaneously drive the cleaning component and the paper cutter to move vertically up and down. The lifting mechanism drives the cutting mechanism and the cleaning mechanism to descend. While the cutting mechanism cuts the paper, the cleaning mechanism cleans the paper feed rollers.

[0004] However, the device still has shortcomings: the printer cannot eliminate the static electricity generated by friction on the surface of the paper feed roller in time during the paper feeding process, and if the cut paper is small, it is easy to get stuck between the OPC drum and the corresponding roller inside the printer. At the same time, the device is inconvenient to replace the paper feed roller. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a parallel paper feeding printing device.

[0006] The technical solution of this utility model is as follows: A parallel paper feeding printing device includes a printer body, a paper output port and a paper input port on the printer body, a paper input tray on the inner side of the paper input port, and an mounting plate on the paper input tray.

[0007] A mounting bracket is located above the mounting plate. A spline shaft is rotatably mounted on the mounting bracket. A motor that drives the spline shaft to rotate is mounted on the mounting bracket. A bracket is provided on the mounting plate to support the end of the spline shaft away from the mounting bracket.

[0008] The paper feed roller is sleeved on the spline shaft and slides radially thereon, and both ends of the paper feed roller are rotatably connected to the fixed frame and the bracket, respectively.

[0009] The antistatic roller is rotatably connected to the fixed frame and is located above the paper feed roller and rolls in contact with its arc surface.

[0010] Ear plate, ear plate is set on mounting plate, rotating shaft is fixedly set on ear plate, sleeve sleeve is fitted on rotating shaft and rotatably connected to it, fixed bracket is connected to sleeve sleeve, and handle is set on sleeve;

[0011] And a locking mechanism that connects the grip and the pivot.

[0012] Preferably, two positioning plates for limiting the two sides of the paper are symmetrically and slidably arranged on the paper feed tray, and a top plate is provided at the bottom of the paper feed tray.

[0013] Preferably, a guide groove is provided on the paper feed tray, the bottom of the positioning plate is inserted into the guide groove and slidably connected to its inner wall, and a locking knob is provided on the positioning plate to rub against the lower wall of the guide groove.

[0014] Preferably, a ring coaxial with the spline shaft is rotatably mounted on the side of the fixed frame near the bracket. An arc groove is provided on the bracket, the center of which is coaxial with the rotating shaft. An arc plate is rotatably mounted on the arc plate, the notch of which matches the notch of the arc groove. A counterweight is provided on the arc plate. The two ends of the paper feeding roller abut against the ring and the arc plate, respectively.

[0015] Preferably, a drive gear is coaxially arranged on the splined shaft, and a driven gear is coaxially arranged on the roller shaft of the antistatic roller, with the driven gear meshing with the drive gear.

[0016] Preferably, the antistatic roller is equipped with several soft brushes.

[0017] Preferably, the locking mechanism includes a locking block and a tensioning component; a number of slots are arranged in a circular array around the axis of the rotating shaft, and a slide is provided on the handle and slidably connected thereto. The locking block is connected to the slide, and the locking block is inserted into the corresponding slot and fits against its inner wall. The tensioning component elastically connects the handle and the slide.

[0018] Preferably, the tensioning assembly includes a slide rod and a spring. The slide rod is disposed on the handle and passes through the slide frame and is slidably connected thereto. The spring is sleeved on the slide rod, and its two ends abut against the handle and the slide frame, respectively.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] By installing a splined shaft and an anti-static roller on a fixed frame, the paper feed roller is fitted onto the splined shaft. The paper feed roller rotates with the splined shaft to feed the paper, and during the paper feeding process, it maintains contact with the anti-static roller, thereby eliminating the static electricity generated on the surface of the paper feed roller due to friction with the paper, and preventing the paper feed roller from slipping on the paper after dust accumulates on its surface. By setting up a cooperative structure of ear plate, rotating shaft, sleeve, handle and locking block, and setting a locking groove on the rotating shaft, the sleeve can be rotated to lock or unlock by the cooperation of the locking block and the locking groove. Using this structure, after unlocking, the fixed frame, splined shaft and paper feed roller can be flipped over, and the paper feed roller can be quickly replaced with one end of the splined shaft detached from the bracket, saving time and effort. In addition, this structure can quickly clear paper jams. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0022] Figure 2 A schematic diagram showing the connection structure between the printer body and the paper feed tray;

[0023] Figure 3 This is a schematic diagram of the connection structure of the various components on the paper feed tray;

[0024] Figure 4 This is a schematic diagram of the connection structure between the grip and the mounting bracket.

[0025] Reference numerals: 1. Printer body; 101. Paper output tray; 102. Paper input tray; 2. Dust cover; 3. Paper feed tray; 4. Positioning plate; 5. Top plate; 6. Fixing frame; 7. Splined shaft; 8. Motor; 9. Paper feed roller; 10. Support bracket; 11. Curved plate; 12. Counterweight; 13. Antistatic roller; 14. Driven gear; 15. Driven gear; 16. Ear plate; 17. Rotary shaft; 171. Slot; 18. Sleeve; 181. Connecting plate; 19. Handle; 20. Carriage; 21. Locking block; 22. Tensioning assembly. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-4As shown, this utility model proposes a parallel paper-feed printing device, including a printer body 1, a fixing frame 6, paper feed rollers 9, an anti-static roller 13, an ear plate 16, and a locking mechanism. The printer body 1 has a paper output port 101 and a paper input port 102. A paper feed tray 3 is provided inside the paper input port 102. A dust cover 2 adapted to the paper input port 102 is provided on the printer body 1. When the dust cover 2 is closed, the diameter of the paper input port is reduced to prevent a large amount of dust from entering the printer body 1 through the overly open paper input port 102. When the dust cover 2 is open, the paper input port 102 is completely open, providing sufficient operating space for subsequent replacement of the paper feed rollers 9 and removal of paper jams. A mounting plate is provided on the paper feed tray 3. Two positioning plates 4 are symmetrically and slidably arranged on the paper feed tray 3 for limiting the two sides of the paper. A top plate 5 is provided at the bottom of the paper feed tray 3. A guide groove is provided on the paper feed tray 3. The bottom of the positioning plate 4 is inserted into the guide groove and slidably connected to its inner wall. A locking knob is provided on the positioning plate 4 to rub against the lower wall of the guide groove. The fixing frame 6 is located above the mounting plate. A spline shaft 7 is rotatably mounted on the fixing frame 6. A motor 8 is provided on the fixing frame 6 to drive the spline shaft 7 to rotate. A bracket 10 is provided on the mounting plate to support the end of the spline shaft 7 away from the fixing frame 6. An arc-shaped groove is provided on the bracket 10, and the center of the arc-shaped groove is coaxial with the rotating shaft 17. The paper feed roller 9 is sleeved on the spline shaft 7 and slides along its radial direction. The two ends of the paper feed roller 9 are rotatably connected to the fixing frame 6 and the bracket 10, respectively. The antistatic roller 13 is rotatably connected to the fixing frame 6. The antistatic roller 13 is located above the paper feed roller 9 and rolls in contact with its arc surface. An ear plate 16 is mounted on a mounting plate, and a rotating shaft 17 is fixedly mounted on the ear plate 16. A sleeve 18, rotatably connected to the rotating shaft 17, is fitted onto the rotating shaft 17. A fixing bracket 6 is connected to the sleeve 18, and a handle 19 is mounted on the sleeve 18. The locking mechanism includes a locking block 21 and a tensioning assembly 22. Several slots 171 are arranged in a circular array around the rotating shaft 17. A slide 20, slidably connected to the handle 19, is mounted on the handle 19. The locking block 21 is connected to the slide 20, and the locking block 21 is inserted into the corresponding slot 171 and fits against its inner wall. The tensioning assembly 22 elastically connects the handle 19 and the slide 20. The tensioning assembly 22 includes a sliding rod and a spring. The sliding rod is mounted on the handle 19, passes through the slide 20, and is slidably connected to it. The spring is fitted onto the sliding rod, and its two ends abut against the handle 19 and the slide 20, respectively.

[0028] In this embodiment, the paper is neatly stacked on the paper feed tray 3. When printing is required, the paper feeding program is started, the motor 8 drives the spline shaft 7 to rotate, which in turn drives the paper feed roller 9 to rotate. The paper feed roller feeds the top layer of paper into the printer body 1. During the rotation of the paper feed roller 9, the anti-static roller 13 eliminates the static electricity generated on its surface due to friction, so as to prevent the paper feed roller 9 from slipping between the paper and the paper after static electricity attracts dust. When it is necessary to replace the paper feed roller 9, simply open the dust cover 2 of the printer body 1, then grasp the handle 19, with your palm in contact with the handle 19, hook your fingers on the slide 20 and pull the slide 20 back until the locking block 21 disengages from the slot 171. Then, flip the handle 19 so that the connecting plate 181 on the sleeve 18 can drive the fixing frame 6, spline shaft 7 and paper feed roller 9 to rotate around the axis of the rotating shaft 17. When the spline shaft 7 is completely disengaged from the bracket 10, pull the paper feed roller 9 horizontally to remove it. After replacing the paper feed roller 9, reset the handle 19 and let the fixing frame 6 fall back onto the mounting plate, and let the end of the spline shaft 7 away from the fixing frame 6 re-lock into the bracket 10. Then release the slide 20, and the slide 20 will slide towards the rotating shaft 17 under the tension of the spring until the locking block 21 re-locks into the corresponding slot 171, thus completing the positioning of the paper feed roller 9.

[0029] Example 2

[0030] like Figure 3 and Figure 4 As shown, the parallel paper feeding printing device proposed in this utility model, compared with the first embodiment, has a ring rotatably arranged on the side of the fixed frame 6 near the bracket 10, which is coaxial with the spline shaft 7, and an arc plate 11 is rotatably arranged on the arc plate 11. The notch of the arc plate 11 is adapted to the notch of the arc groove, and a counterweight block 12 is arranged on the arc plate 11. The two ends of the paper feed roller 9 abut against the ring and the arc plate 11 respectively.

[0031] In this embodiment, by setting the arc plate 11 and the ring, the friction between the paper feed roller 9 and the fixed frame 6 and the bracket 10 is reduced, thereby reducing noise. The counterweight 12 on the arc plate 11 remains in a downward state when the spline shaft 7 and the paper feed roller 9 are not rotating. In this state, the notch on the arc plate is exactly aligned with the arc groove. At this time, flipping the handle 19 allows the spline shaft 7 to disengage from the arc plate 11 and the bracket 10 without resistance.

[0032] Example 3

[0033] like Figure 3 and Figure 4 As shown, the parallel paper feeding printing device proposed in this utility model, compared with Embodiment 1, has a drive gear 15 coaxially arranged on the spline shaft 7, a driven gear 14 coaxially arranged on the roller shaft of the antistatic roller 13, the driven gear 14 meshing with the drive gear 15, and several soft brushes arranged on the antistatic roller 13.

[0034] In this embodiment, when the spline shaft 7 rotates and drives the paper feed roller 9 to rotate, the drive gear 15 drives the driven gear 14 and the antistatic roller 13 to rotate in the opposite direction to the rotation of the paper feed roller 9. In turn, the soft brush on the antistatic roller 13 cleans the dust on the surface of the antistatic roller 13, so as to avoid the dust from having an adverse effect on the printing effect of the paper.

[0035] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A parallel paper-feeding printing device, characterized in that, include The printer body (1) has a paper output port (101) and a paper input port (102) on it. A paper feed tray (3) is provided on the inner side of the paper input port (102), and an mounting plate is provided on the paper feed tray (3). A fixed frame (6) is located above the mounting plate. A spline shaft (7) is rotatably mounted on the fixed frame (6). A motor (8) that drives the spline shaft (7) to rotate is mounted on the fixed frame (6). A bracket (10) for supporting the end of the spline shaft (7) away from the fixed frame (6) is mounted on the mounting plate. Paper feed roller (9) is sleeved on spline shaft (7) and slides radially thereon. The two ends of paper feed roller (9) are rotatably connected to fixed frame (6) and bracket (10) respectively. The antistatic roller (13) is rotatably connected to the fixed frame (6). The antistatic roller (13) is located above the paper feed roller (9) and rolls in contact with its arc surface. Ear plate (16), ear plate (16) is set on mounting plate, rotating shaft (17) is fixedly set on ear plate (16), sleeve (18) is sleeved on rotating shaft (17) and connected to it, fixing bracket (6) is connected to sleeve (18), and handle (19) is set on sleeve (18); And a locking mechanism that connects the handle (19) and the pivot (17).

2. The parallel paper feeding printing device according to claim 1, characterized in that, Two positioning plates (4) for limiting the two sides of the paper are symmetrically and slidably arranged on the paper feed tray (3), and a top plate (5) is provided at the bottom of the paper feed tray (3).

3. The parallel paper feeding printing device according to claim 2, characterized in that, A guide groove is provided on the paper feed tray (3), the bottom of the positioning plate (4) is inserted into the guide groove and slidably connected to its inner wall, and a locking knob is provided on the positioning plate (4) to rub against the lower wall of the guide groove.

4. The parallel paper feeding printing device according to claim 1, characterized in that, A ring coaxial with the spline shaft (7) is rotatably mounted on the side of the fixed frame (6) near the bracket (10). An arc groove is provided on the bracket (10), the center of the arc groove is coaxial with the rotating shaft (17), and an arc plate (11) is rotatably mounted on the arc plate (11). The notch of the arc plate (11) matches the notch of the arc groove, and a counterweight (12) is provided on the arc plate (11). The two ends of the paper feeding wheel (9) abut against the ring and the arc plate (11) respectively.

5. A parallel paper-feeding printing device according to claim 1, characterized in that, A drive gear (15) is coaxially mounted on the splined shaft (7), and a driven gear (14) is coaxially mounted on the roller shaft of the antistatic roller (13). The driven gear (14) meshes with the drive gear (15).

6. The parallel paper feeding printing device according to claim 1, characterized in that, Several soft brushes are installed on the antistatic roller (13).

7. The parallel paper feeding printing device according to claim 1, characterized in that, The locking mechanism includes a locking block (21) and a tensioning component (22); a number of slots (171) are arranged in a ring array around the axis of the rotating shaft (17), and a slide (20) is provided on the handle (19) and slidably connected thereto. The locking block (21) is connected to the slide (20), and the locking block (21) is inserted into the corresponding slot (171) and fits against its inner wall. The tensioning component (22) elastically connects the handle (19) and the slide (20).

8. A parallel paper-feeding printing device according to claim 7, characterized in that, The tensioning assembly (22) includes a slide bar and a spring. The slide bar is mounted on the handle (19) and passes through the slide frame (20) and is slidably connected to it. The spring is sleeved on the slide bar, and the two ends of the spring abut against the handle (19) and the slide frame (20) respectively.

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