Paper feeding mechanism of paper conveying machine

Abstract

The utility model discloses a paper feeding mechanism of a paper conveying machine, which comprises a machine frame, a paper feeding component and a paper blocking frame, the paper feeding component comprises an upper paper feeding roller and a lower paper feeding roller which are mounted on the rack, a paper feeding gap formed between the upper paper feeding roller and the lower paper feeding roller, a control assembly for driving the upper paper feeding roller and the lower paper feeding roller to move oppositely or oppositely, and a first driving part for driving the upper paper feeding roller or the lower paper feeding roller to rotate; the paper blocking frame is installed on the machine frame and located in front of the paper feeding component in the paper conveying direction, and the paper blocking frame is provided with a blocking position for blocking paper from entering the paper feeding gap and a non-blocking position. A linkage assembly for driving the paper blocking frame to be switched between the blocking position and the non-blocking position is arranged between the upper paper feeding roller and the paper blocking frame or between the lower paper feeding roller and the paper blocking frame. The utility model has the following advantages and effects: the system is low in cost and low in power consumption so as to accord with the energy-saving and environment-friendly development concept of enterprises.

Description

Technical Field

[0001] The utility model relates to a paper feeder, in particular to a paper feeding mechanism of the paper feeder. Background Art

[0002] Sheet feeders are widely used in sheet-fed printing machinery and equipment such as screen printing machines, gravure printing machines, fully automatic die-cutting machines, and paper laminating machines. A paper stacking platform for placing paper piles is set at the entrance section, and the paper is separated and fed into the paper feeder platform in sequence through the feeder head. As the paper is continuously output, the paper pile monitoring system of the paper feeder increases the paper pile height at any time to ensure uninterrupted paper feeding.

[0003] To ensure a smooth transition between the feeder head and the paper feeder, a paper feed mechanism is installed at the front of the feeder to provide power for paper entry. Existing paper feed mechanisms consist of a feeder assembly and a paper stop. The stop is designed to ensure orderly entry of paper. However, existing paper stops require an additional drive source, increasing overall production costs and power consumption for the feeder, which is inconsistent with the company's commitment to energy conservation and environmental protection. Utility Model Content

[0004] The utility model aims to provide a paper feeding mechanism for a paper feeder, which has low cost and low power consumption, thereby complying with the development concept of energy conservation and environmental protection of an enterprise.

[0005] The above-mentioned technical objectives of the present invention are achieved through the following technical solutions: a paper feeding mechanism of a paper feeder, comprising a frame and a paper feeding component and a paper stopper arranged on the frame, the paper feeding component comprising an upper paper feeding roller and a lower paper feeding roller installed on the frame, a paper feeding gap formed between the upper paper feeding roller and the lower paper feeding roller, a control component for driving the upper paper feeding roller and the lower paper feeding roller to move toward or away from each other, and a first driving component for driving the upper paper feeding roller or the lower paper feeding roller to rotate, the paper stopper being installed on the frame and located in front of the paper feeding component along the paper transmission direction, the paper stopper having a blocking position and a non-blocking position for blocking paper from entering the paper feeding gap, and a linkage component for driving the paper stopper to switch between the blocking position and the non-blocking position is provided between the upper paper feeding roller and the paper stopper or between the lower paper feeding roller and the paper stopper.

[0006] By adopting the above technical solution, the control component controls the movement of both the upper and lower paper feed rollers while simultaneously driving the paper stop frame to switch between a blocking position and a non-blocking position via a provided linkage component. This achieves linked control of the paper stop frame, eliminating the need for a separate drive source for its movement. This reduces the production cost and power consumption of the paper feed mechanism, in line with the company's energy-saving and environmentally friendly development philosophy.

[0007] It is further configured as follows: the linkage component is arranged between the lower paper feed roller and the paper stop frame, the paper stop frame is rotatably arranged on the frame, and the lower paper feed roller is slidably arranged on the frame, and the linkage component includes a first linkage part that moves with the lower paper feed roller, a second linkage part that rotates with the paper stop frame, and a third linkage part that links the first linkage part and the second linkage part.

[0008] By adopting the above technical solution, the first linkage part moves with the lower paper feed roller, and the power of the first linkage part is transmitted to the second linkage part through the provided three linkage parts, thereby driving the paper stop frame to move.

[0009] It is further configured as follows: the first linkage part is a rack that moves with the lower paper feed roller, the second linkage part is a linkage gear that rotates with the paper stop frame, and the third linkage part is a reversing gear that is rotatably set on the frame and meshes with the rack and the linkage gear. The paper stop frame is matched with the frame for damping rotation, and the rack is slidably set on the frame.

[0010] By adopting the above technical solution, the rack moves with the lower paper feed roller, and the reversing gear is used to change the linkage direction to drive the paper stop frame to move through the linkage gear, so that the action switching of the paper stop frame can meet the requirements of the paper feeding mechanism, thereby ensuring the feasibility of the mechanism.

[0011] It is further configured that the control component includes a control swing arm rotatably set on the frame, a cam rotatably set on the frame and abutting against one side of the swing direction of the control swing arm, a second driving member that drives the cam to rotate, a control connecting arm connecting the control swing arm and the lower paper feed roller, and an elastic member that drives the control swing arm to press against the cam.

[0012] By adopting the above technical solution, the second driving member drives the cam to rotate, and the rotating cam cooperates with the elastic member to drive the control swing arm to achieve reciprocating motion. The control swing arm in the reciprocating motion drives the lower paper feed roller to achieve reciprocating motion through the control connecting arm, thereby achieving the purpose of controlling and driving the lower paper feed roller.

[0013] It is further configured as follows: a guide frame that moves with the paper stop frame is provided on the other side of the lower paper feed roller relative to the paper stop frame, the outer peripheral wall of the lower paper feed roller is provided with a plurality of annular grooves arranged along the axis of the lower paper feed roller, and the position of the guide frame corresponding to each annular groove is provided with a guide claw extending into the annular groove, and the guide claw includes a horizontal section extending toward one side of the paper stop frame and a guide section connecting the horizontal section and gradually extending into the annular groove.

[0014] By adopting the above technical solution, the guide frame cooperates with the guide claws to guide the paper output more smoothly, avoiding paper jams.

[0015] It is further configured as follows: the lower paper feed roller is slidably arranged on the frame via a slide, and the guide frame is fixed to the slide.

[0016] By adopting the above technical solution, structural interference between the lower paper feed roller and the guide frame is avoided.

[0017] In summary, the present invention has the following beneficial effects: the present invention has low cost and low power consumption, thereby complying with the enterprise's development concept of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment;

[0019] Figure 2 It is a partial structural diagram of an embodiment;

[0020] Figure 3 for Figure 1 Enlarged view of part A in the middle;

[0021] Figure 4 A partial exploded view of an embodiment;

[0022] Figure 5 is another partial structural diagram of the embodiment;

[0023] Figure 6 for Figure 5 Enlarged view of part B in the middle.

[0024] In the figure: 1. Frame; 2. Paper stop frame; 3. Upper paper feed roller; 4. Lower paper feed roller; 5. Paper feed gap; 6. Control assembly; 61. Control swing arm; 62. Cam; 63. Second drive member; 64. Control link arm; 65. Elastic member; 7. First drive member; 8. Linkage assembly; 81. Rack; 82. Linkage gear; 83. Reversing gear; 9. Guide frame; 10. Ring groove; 11. Guide claw; 111. Horizontal section; 112. Guide section; 12. Slide. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] refer to Figures 1 to 6 A paper feeding mechanism of a paper feeder includes a frame 1 and a paper feeding member and a paper stopper 2 arranged on the frame 1. The paper feeding member includes an upper paper feeding roller 3 and a lower paper feeding roller 4 installed on the frame 1, a paper feeding gap 5 formed between the upper paper feeding roller 3 and the lower paper feeding roller 4, a control component 6 that drives the upper paper feeding roller 3 and the lower paper feeding roller 4 to move toward or away from each other, and a first driving member 7 that drives the upper paper feeding roller 3 or the lower paper feeding roller 4 to rotate. The paper stopper 2 is installed on the frame 1 and is located in front of the paper feeding member along the paper transmission direction. The paper stopper 2 has a blocking position for blocking paper from entering the paper feeding gap 5 and a non-blocking position. A linkage component 8 is provided between the upper paper feeding roller 3 and the paper stopper 2 or between the lower paper feeding roller 4 and the paper stopper 2 to drive the paper stopper 2 to switch between the blocking position and the non-blocking position.

[0027] The linkage assembly 8 is disposed between the lower paper feed roller 4 and the paper stop 2. The paper stop 2 is rotatably mounted on the frame 1. The lower paper feed roller 4 is slidably mounted on the frame 1 via a slide 12, and the lower paper feed roller 4 and the slide 12 rotate in conjunction. The linkage assembly 8 includes a first linkage portion that moves with the lower paper feed roller 4, a second linkage portion that rotates with the paper stop 2, and a third linkage portion that links the first and second linkage portions. The upper paper feed roller 3 is rotatably mounted on the frame 1. The first drive member 7 is a motor fixedly mounted on the frame 1, with its output shaft fixedly connected to the upper paper feed roller 3.

[0028] The first linkage is a rack 81 that moves with the lower paper feed roller 4. The second linkage is a linkage gear 82 that is fixed to the paper stopper 2 and rotates with it. The third linkage is a reversing gear 83 that is rotatably mounted on the frame 1 and meshes with the rack 81 and linkage gear 82. The paper stopper 2 and the frame 1 are in damped rotational engagement, while the rack 81 is slidably mounted on the frame 1 and in rotational engagement with the lower paper feed roller 4.

[0029] The control assembly 6 includes a control swing arm 61, one end of which is rotatably mounted on the frame 1; a cam 62, which is rotatably mounted on the frame 1 and abuts against one side of the control swing arm 61's swinging direction; a second driving member 63, which drives the cam 62 in rotation; a control link arm 64, which connects the control swing arm 61 to the lower paper feed roller 4; and an elastic member 65, which drives the control swing arm 61 against the cam 62. The control link arm 64 is rotatably connected to the control swing arm 61 at one end and to the lower paper feed roller 4 at the other end. The elastic member 65 is a spring that fixedly connects the frame 1 to the control swing arm 61. The second driving member 63 is a motor, which is fixedly mounted on the frame 1 and has an output shaft fixedly connected to the cam 62.

[0030] On the other side of the lower paper feed roller 4 from the paper stop 2, a guide frame 9 is mounted, fixed to a slide 12, and moves with the paper stop 2. The outer wall of the lower paper feed roller 4 is defined by a plurality of annular grooves 10 arranged along the axis of the lower paper feed roller 4. A guide claw 11 is fixedly mounted on the guide frame 9 at a corresponding position in each annular groove 10, extending into the annular groove 10. The guide claw 11 comprises a horizontal section 111 extending toward the side of the paper stop 2, and a guide section 112 connecting the horizontal section 111 and gradually extending into the annular groove 10.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A paper feeding mechanism of a paper feeder, comprising a frame (1) and a paper feeding member and a paper stopper (2) arranged on the frame (1), the paper feeding member comprising an upper paper feeding roller (3) and a lower paper feeding roller (4) mounted on the frame (1), a paper feeding gap (5) formed between the upper paper feeding roller (3) and the lower paper feeding roller (4), a control component (6) for driving the upper paper feeding roller (3) and the lower paper feeding roller (4) to move toward or away from each other, and a first driving member (7) for driving the upper paper feeding roller (3) or the lower paper feeding roller (4) to rotate, the paper stopper (2) being mounted on the frame (1) and located in front of the paper feeding member along the paper transmission direction, the paper stopper (2) having a blocking position for blocking paper from entering the paper feeding gap (5) and a non-blocking position, characterized in that: A linkage assembly (8) for driving the paper stop (2) to switch between a blocking position and a non-blocking position is provided between the upper paper feed roller (3) and the paper stop (2) or between the lower paper feed roller (4) and the paper stop (2).

2. The paper feeding mechanism of the paper feeder according to claim 1, characterized in that: The linkage assembly (8) is arranged between the lower paper feed roller (4) and the paper stop frame (2); the paper stop frame (2) is rotatably arranged on the frame (1); the lower paper feed roller (4) is slidably arranged on the frame (1); the linkage assembly (8) includes a first linkage part that moves with the lower paper feed roller (4), a second linkage part that rotates with the paper stop frame (2), and a third linkage part that links the first linkage part and the second linkage part.

3. The paper feeding mechanism of the paper feeder according to claim 2, characterized in that: The first linkage part is a rack (81) that moves with the lower paper feed roller (4), the second linkage part is a linkage gear (82) that rotates with the paper stop frame (2), and the third linkage part is a reversing gear (83) that is rotatably arranged on the frame (1) and meshes with the rack (81) and the linkage gear (82). The paper stop frame (2) and the frame (1) are damped and rotated together, and the rack (81) is slidably arranged on the frame (1).

4. The paper feeding mechanism of the paper feeder according to claim 2, characterized in that: The control assembly (6) comprises a control swing arm (61) rotatably arranged on the frame (1), a cam (62) rotatably arranged on the frame (1) and abutting against one side of the swing direction of the control swing arm (61), a second driving member (63) driving the cam (62) to rotate, a control link arm (64) connecting the control swing arm (61) and the lower paper feed roller (4), and an elastic member (65) driving the control swing arm (61) to press against the cam (62).

5. The paper feeding mechanism of the paper feeder according to claim 2, characterized in that: The lower paper feed roller (4) is provided with a guide frame (9) on the other side of the paper stop frame (2) and moves with the paper stop frame (2); the outer peripheral wall of the lower paper feed roller (4) is provided with a plurality of annular grooves (10) arranged along the axis of the lower paper feed roller (4); the guide frame (9) is provided with a guide claw (11) extending into the annular groove (10) at a position corresponding to each annular groove (10); the guide claw (11) includes a horizontal section (111) extending toward one side of the paper stop frame (2) and a guide section (112) connected to the horizontal section (111) and gradually extending into the annular groove (10).

6. The paper feeding mechanism of the paper feeder according to claim 2, characterized in that: The lower paper feed roller (4) is slidably arranged on the frame (1) via a slide seat (12), and the guide frame (9) is fixed to the slide seat (12).

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