Paper feeding mechanism of printer

Abstract

The utility model discloses a printer paper feeding mechanism which comprises an integrated frame and a paper bin, the paper bin is installed on the side wall of the integrated frame, a bidirectional threaded rod is movably installed in the paper bin, an auxiliary wheel is installed on the side wall of the paper bin, the output end of the auxiliary wheel is connected with the bidirectional threaded rod, and the output end of the auxiliary wheel is connected with the bidirectional threaded rod. The surface of the two-way threaded rod is sleeved with two sets of two-way threaded sleeves, the two-way threaded sleeves are in threaded connection with the two-way threaded rod, the surfaces of the two-way threaded sleeves are movably sleeved with paper feeding frames correspondingly, paper rubbing motors are installed in the paper feeding frames correspondingly, and driving shafts are installed at the output ends of the paper rubbing motors correspondingly; the surface of each driving shaft is sleeved with a transmission gear. According to the utility model, not only are convenient and elastic contact input of paper and rubbing and flattening of the paper realized, the paper with different widths can be conveniently adjusted and adaptively input, but also the convenience of paper input and the flatness of paper input are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper feeding mechanism technical field, concretely is a printer paper feeding mechanism. BACKGROUND

[0002] The printer is one of the output devices of the computer, is used for printing the computer processing result on the relevant medium, its main function is to change the virtual digital information into the actual paper document, facilitates our reference, preservation and sharing, the printer is in printing, paper needs to be aligned and flat input, can better print, in order to better input and print paper, therefore a printer paper feeding mechanism is proposed.

[0003] Such as the digital printer paper feeding mechanism disclosed in the authorized announcement No. CN220664277U, including the paper loading tray, the top of the paper loading tray is fixed with a limiting plate on both sides, and the top of the two limiting plates is provided with a sliding groove, the sliding groove is slidably connected with a sliding frame, and a pressing mechanism is arranged at the bottom of the sliding frame, and the pressing mechanism is provided with a clamping plate on both sides;

[0004] It realizes that the sliding frame slides along the limiting plate through the sliding groove, so that the pressing mechanism is attached to and presses the paper on the paper loading tray, and the paper is flattened to avoid bending, the annular air bag is supported by the sleeve, and is stably supported by the supporting rod along the paper, the elasticity and flexibility of the annular air bag avoid excessive pressing of the paper to affect the paper conveying of the paper guide wheel, and the anti-static rubber sleeve outside the annular air bag avoids the paper from being difficult to separate due to static adsorption, and protects the annular air bag from being worn out due to long-time rolling;

[0005] But it does not solve the problem that the existing paper feeding mechanism is not convenient for elastic contact input paper and rubbing and spreading flat paper when in use, and is not conducive to adjusting and adapting input of paper of different widths, which affects the convenience of paper input and the flatness of paper input. Utility model content

[0006] The utility model aims at providing a printer paper feeding mechanism to solve the problem that the paper feeding mechanism is not convenient for elastic contact input paper and rubbing and spreading flat paper, and is not conducive to adjusting and adapting input of paper of different widths, which affects the convenience of paper input and the flatness of paper input.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: A printer paper feeding mechanism comprises an integrated frame and a paper bin, wherein a paper bin is mounted on a side wall of the integrated frame, a bidirectional threaded rod is movably mounted inside the paper bin, a servo motor is mounted on the side wall of the paper bin, and the output end of the servo motor is connected to the bidirectional threaded rod, two sets of bidirectional threaded sleeves are sleeved on the surface of the bidirectional threaded rod, and the bidirectional threaded sleeves are threadedly connected to the bidirectional threaded rod, and the surfaces of the bidirectional threaded sleeves are movably sleeved with a paper feeding frame, a paper pickup motor is mounted inside the paper feeding frame, a drive shaft is mounted on the output end of the paper pickup motor, and a transmission gear is sleeved on the surface of the drive shaft, a pin is movably mounted inside the paper feeding frame on one side of the transmission gear, a driven gear is mounted on one side of the pin, and the driven gear and the transmission gear are meshed with each other, and a paper pickup roller is mounted on the other side of the pin, a first torsion spring is movably mounted on the surface of the bidirectional threaded rod on one side of the paper feeding frame, and the two ends of the first torsion spring are respectively connected to the paper bin and the paper feeding frame.

[0008] Preferably, a plurality of groups of pressing plates with equal spacing are installed on the side walls of the integrated frame, a movable shaft is installed on the side of the pressing plates close to the integrated frame, and the pressing plates are movably connected to the integrated frame through the movable shaft.

[0009] Preferably, a tension spring is installed at one end of each pressure plate, and the tension spring is connected to the integrated frame.

[0010] Preferably, a paper pressing wheel is movably mounted on the other end of the pressing plate, and an auxiliary wheel is movably mounted inside the integrated frame below the paper pressing wheel.

[0011] Preferably, mounting posts are symmetrically mounted on the inner wall of the paper bin, and a hinge shaft is mounted on one end of the mounting posts away from the paper bin.

[0012] Preferably, the surfaces of the hinge shafts are all covered with second torsion springs, the top ends of the hinge shafts are all movably mounted with linkage arms, and the two ends of the second torsion springs are respectively connected to the mounting column and the linkage arm.

[0013] Preferably, a rubbing and unfolding frame is installed at one end of the linkage arm, and a dual-axis motor is installed inside the rubbing and unfolding frame.

[0014] Preferably, the output ends of the dual-axis motors are each equipped with two sets of linkage shafts, and the surfaces of the linkage shafts are each equipped with movable wheels.

[0015] Compared with the existing technology, the beneficial effects of the present invention are: the paper feeding mechanism not only realizes convenient elastic contact input of paper and rubbing and flattening of paper, which facilitates the adjustment and adaptation input of paper of different widths, but also improves the convenience of paper input and the smoothness of paper input. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the front view sectional structure schematic view of the utility model;

[0018] Figure 3 It is the three-dimensional structure schematic view of the paper feeding frame of the utility model;

[0019] Figure 4 It is the three-dimensional structure schematic view of the installation column of the utility model;

[0020] Figure 5 It is the three-dimensional structure schematic view of the movable wheel of the utility model;

[0021] Figure 6 It is the front view sectional structure schematic view of the rubbing and spreading frame of the utility model.

[0022] In the drawing: 1, integrated frame; 2, paper bin; 3, bidirectional threaded rod; 4, paper feeding frame; 5, pressing plate; 6, paper pressing wheel; 7, bidirectional threaded sleeve; 8, paper rubbing wheel; 9, tension spring; 10, movable shaft; 11, driving shaft; 12, first torsion spring; 13, paper rubbing motor; 14, transmission gear; 15, driven gear; 16, pin shaft; 17, servo motor; 18, auxiliary wheel; 19, installation column; 20, hinged shaft; 21, second torsion spring; 22, linkage arm; 23, linkage shaft; 24, movable wheel; 25, rubbing and spreading frame; 26, double-shaft motor. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figures 1-6The utility model provides an embodiment: a printer paper feeding mechanism, including an integrated frame 1 and a paper bin 2, the side wall of the integrated frame 1 is installed with a paper bin 2, the inside of the paper bin 2 is movably installed with a bidirectional threaded rod 3, a servo motor 17 is installed on the side wall of the paper bin 2, the servo motor 17 plays a role of power drive, and the output end of the servo motor 17 is connected to the bidirectional threaded rod 3, the surface of the bidirectional threaded rod 3 is covered with two groups of bidirectional threaded sleeves 7, and the bidirectional threaded sleeves 7 are threadedly connected to the bidirectional threaded rod 3, the surface of the bidirectional threaded sleeves 7 are all movably covered with a paper feeding frame 4, and the inside of the paper feeding frame 4 is all installed with a rubbing The paper motor 13 and the paper pickup motor 13 play the role of power drive. The output end of the paper pickup motor 13 is equipped with a drive shaft 11. The surface of the drive shaft 11 is equipped with a transmission gear 14. A pin 16 is movably installed inside the paper feed frame 4 on one side of the transmission gear 14. A driven gear 15 is installed on one side of the pin 16, and the driven gear 15 and the transmission gear 14 are meshed with each other. A paper pickup roller 8 is installed on the other side of the pin 16. A first torsion spring 12 is movably installed on the surface of the bidirectional threaded rod 3 on one side of the paper feed frame 4, and the two ends of the first torsion spring 12 are respectively connected to the paper bin 2 and the paper feed frame 4;

[0025] Firstly, the paper feeding mechanism is installed in the printer and connected with the controller of the printer. The paper is placed in the paper bin 2. Under the elastic cooperation of the first torsion spring 12, the paper feeding frame 4 is driven by the first torsion spring 12 to rotate on the surface of the bidirectional threaded rod 3. The paper feeding frame 4 drives the rubbing wheel 8 to rotate, so that the rubbing wheel 8 always contacts the surface of the paper. Then the rubbing motor 13 is turned on. The rubbing motor 13 drives the transmission gear 14 to rotate through the driving shaft 11. Under the mutual meshing of the transmission gear 14 and the driven gear 15, the driven gear 15 is driven by the transmission gear 14 to rotate. The rubbing wheel 8 is driven by the driven gear 15 through the pin shaft 16 to rotate. The rubbing wheel 8 drives the paper to be input. When the paper moves to the position of the movable wheel 24, the double-shaft motor 26 is turned on. The double-shaft motor 26 drives the movable wheel 24 to rotate through the linkage shaft 23. The rotation directions of the two groups of movable wheels 24 are opposite, so as to rub and flatten the paper in the transverse direction. Under the support of the mounting column 19 and the elastic cooperation of the second torsion spring 21, the linkage arm 22 is driven by the second torsion spring 21 to rotate on the surface of the hinged shaft 20. The linkage arm 22 drives the movable wheel 24 to always contact the surface of the paper. The friction between the movable wheel 24 and the paper is smaller than the friction between the rubbing wheel 8 and the paper. If the width of the paper to be input is different, the auxiliary wheel 18 is turned on. The auxiliary wheel 18 drives the bidirectional threaded rod 3 to rotate. Under the threaded connection of the bidirectional threaded rod 3 and the bidirectional threaded sleeve 7, the two groups of paper feeding frames 4 are driven by the bidirectional threaded sleeve 7 to move towards each other. The rubbing wheel 8 is driven by the paper feeding frame 4 to move towards each other, so as to adjust the distance between the two groups of rubbing wheels 8, adapt to different widths of the paper, and facilitate the paper feeding operation of the paper with different widths. The elastic contact of the input paper and the rubbing and flattening of the paper are realized, the adjustment and adaptation of the paper with different widths are facilitated, and the convenience of the paper input is improved.

[0026] The side wall of the integrated frame 1 is provided with a plurality of groups of pressing plates 5 at equal intervals. The pressing plates 5 are provided with movable shafts 10 near one side of the integrated frame 1, and the pressing plates 5 are movably connected with the integrated frame 1 through the movable shafts 10.

[0027] One end of each of the pressing plates 5 is provided with a tension spring 9, and the tension spring 9 is connected with the integrated frame 1. The other end of each of the pressing plates 5 is movably provided with a paper pressing wheel 6. The lower part of the integrated frame 1 is movably provided with an auxiliary wheel 18 below the paper pressing wheel 6.

[0028] The inner wall of the paper bin 2 is symmetrically provided with mounting columns 19. One end of each of the mounting columns 19 away from the paper bin 2 is provided with a hinged shaft 20. The surface of each of the hinged shafts 20 is sleeved with a second torsion spring 21. The top end of each of the hinged shafts 20 is movably provided with a linkage arm 22. The two ends of the second torsion spring 21 are respectively connected with the mounting column 19 and the linkage arm 22.

[0029] One end of the linkage arm 22 is provided with a rubbing frame 25, and the inner part of the rubbing frame 25 is provided with a double-shaft motor 26, which serves as a power drive. The output end of the double-shaft motor 26 is provided with two sets of linkage shafts 23, and the surface of the linkage shafts 23 is provided with movable wheels 24.

[0030] When the paper moves to the position of the pressing wheel 6, the paper is flattened twice by the pressing wheel 6 and the auxiliary wheel 18 under the cooperation of the pressing wheel 6 and the auxiliary wheel 18. Meanwhile, under the elastic support of the tension spring 9, the pressing plate 5 is driven by the tension spring 9 to rotate around the movable shaft 10, and the pressing wheel 6 is driven by the pressing plate 5 to rotate, so that the pressing wheel 6 always contacts the upper surface of the paper, thereby better flattening the paper and improving the flatness of the paper input.

[0031] Working principle: firstly, the paper feeding mechanism is installed in the printer and connected with the controller of the printer, and then the paper is placed in the paper bin 2. The paper feeding frame 4 is driven by the first torsion spring 12 to rotate on the surface of the two-way threaded rod 3, and the rubbing wheel 8 is driven by the paper feeding frame 4 to rotate, so that the rubbing wheel 8 always contacts the surface of the paper. The rubbing motor 13 drives the transmission gear 14 to rotate through the driving shaft 11, the driven gear 15 is driven by the transmission gear 14 to rotate, the rubbing wheel 8 is driven by the driven gear 15 through the pin shaft 16 to rotate, and the paper is fed by the rubbing wheel 8. When the paper moves to the position of the movable wheel 24, the movable wheel 24 is driven by the double-shaft motor 26 through the linkage shaft 23 to rotate, and the rotation directions of the two sets of movable wheels 24 are opposite, so as to horizontally rub and flatten the paper. Meanwhile, under the support of the mounting column 19 and the elastic cooperation of the second torsion spring 21, the linkage arm 22 is driven by the second torsion spring 21 to rotate on the surface of the hinged shaft 20, and the movable wheel 24 is always contacted with the surface of the paper by the linkage arm 22. The friction between the movable wheel 24 and the paper is smaller than the friction between the rubbing wheel 8 and the paper. If the width of the paper to be input is different, the two-way threaded rod 3 is driven by the servo motor 17 to rotate, the two sets of paper feeding frames 4 are moved towards each other by the two-way threaded sleeve 7, and the rubbing wheels 8 are moved towards each other by the paper feeding frames 4, so as to adjust the distance between the two sets of rubbing wheels 8, thereby adapting to different widths of the paper to facilitate the paper feeding operation of the paper of different widths. When the paper moves to the position of the pressing wheel 6, the paper is flattened twice by the pressing wheel 6 and the auxiliary wheel 18 under the cooperation of the pressing wheel 6 and the auxiliary wheel 18. Meanwhile, under the elastic support of the tension spring 9, the pressing plate 5 is driven by the tension spring 9 to rotate around the movable shaft 10, and the pressing wheel 6 is driven by the pressing plate 5 to rotate, so that the pressing wheel 6 always contacts the upper surface of the paper, thereby better flattening the paper and improving the flatness of the paper input.

Claims

1. A printer paper feed mechanism, comprising an integrated frame (1) and a paper bin (2), characterized in that: A paper bin (2) is mounted on the side wall of the integrated frame (1), a bidirectional threaded rod (3) is movably mounted inside the paper bin (2), a servo motor (17) is mounted on the side wall of the paper bin (2), and the output end of the servo motor (17) is connected to the bidirectional threaded rod (3), the surface of the bidirectional threaded rod (3) is sheathed with two groups of bidirectional threaded sleeves (7), and the bidirectional threaded sleeves (7) are threadedly connected to the bidirectional threaded rod (3), the surface of the bidirectional threaded sleeves (7) are movably sheathed with a paper feed frame (4), the interior of the paper feed frame (4) is mounted with a paper rubbing motor (13), and the output end of the paper rubbing motor (13) is mounted. A driving shaft (11) is provided, and a transmission gear (14) is provided on the surface of the driving shaft (11). A pin shaft (16) is movably provided inside the paper feed frame (4) on one side of the transmission gear (14). A driven gear (15) is provided on one side of the pin shaft (16), and the driven gear (15) and the driving gear (14) are meshed with each other. A pickup roller (8) is provided on the other side of the pin shaft (16). A first torsion spring (12) is movably provided on the surface of the bidirectional threaded rod (3) on one side of the paper feed frame (4), and both ends of the first torsion spring (12) are connected to the paper bin (2) and the paper feed frame (4) respectively.

2. A printer paper feed mechanism according to claim 1, characterized in that: Multiple groups of pressure plates (5) with equal spacing are installed on the side walls of the integrated frame (1), and a movable shaft (10) is installed on the side of the pressure plates (5) close to the integrated frame (1), and the pressure plates (5) are movably connected to the integrated frame (1) through the movable shaft (10).

3. A printer paper feed mechanism according to claim 2, characterized in that: A tension spring (9) is installed at one end of each of the pressure plates (5), and the tension spring (9) is connected to the integrated frame (1).

4. A printer paper feed mechanism according to claim 2, characterized in that: A paper pressing wheel (6) is movably mounted on the other end of the pressing plate (5), and an auxiliary wheel (18) is movably mounted inside the integrated frame (1) below the paper pressing wheel (6).

5. The printer paper feed mechanism according to claim 1, characterized in that: Mounting columns (19) are symmetrically mounted on the inner wall of the paper bin (2), and a hinge shaft (20) is mounted on one end of the mounting columns (19) away from the paper bin (2).

6. A printer paper feed mechanism according to claim 5, characterized in that: The surfaces of the hinge shafts (20) are all covered with second torsion springs (21), the top ends of the hinge shafts (20) are all movably provided with linkage arms (22), and the two ends of the second torsion springs (21) are respectively connected to the mounting posts (19) and the linkage arms (22).

7. A printer paper feed mechanism according to claim 6, characterized in that: One end of the linkage arm (22) is equipped with a rubbing and spreading frame (25), and a double-axis motor (26) is installed inside the rubbing and spreading frame (25).

8. A printer paper feed mechanism according to claim 7, characterized in that: The output ends of the dual-axis motors (26) are both equipped with two sets of linkage shafts (23), and the surfaces of the linkage shafts (23) are both equipped with movable wheels (24).

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