A paper feeding mechanism

Abstract

The present invention provides a paper feeding mechanism, including a paper positioning component and a suction material handling component, the paper positioning component is used to position the paper at a predetermined position below the suction material handling component; the suction material handling component includes a lifting mechanism and a suction cup mechanism, the lifting mechanism drives the suction cup mechanism to move up and down above the paper; the suction cup mechanism includes a first suction cup component and a second suction cup component, the second suction cup component is hinged to the first suction cup component through a horizontally arranged rotating shaft, the second suction cup component can swing around the rotating shaft so that the suction cups on the first suction cup component and the second suction cup component are located on two intersecting planes; the suction cup mechanism also includes a swinging device for driving the second suction cup component to swing. The present invention adds a single sheet separation mechanism and a multiple anti-sticking paper mechanism in design, has good positioning, stable structure, good flexibility, and is compatible with paper products of various sizes.

Description

Technical Field

[0001] The invention particularly relates to a paper feeding mechanism. Background Art

[0002] At present, paper feeding mechanisms generally include a paper box separation mechanism and a paper suction mechanism; a whole stack of paper is manually placed into the paper box of the paper box separation mechanism, and the equipment automatically separates the paper when grabbing it; the paper suction mechanism sucks the paper one by one and then transports it for feeding.

[0003] Disadvantages of existing technology: The common paper feeding mechanism currently used in the market is a feeder mechanism, which either uses a roller to suck the paper or an eccentric wheel to feed the paper, clamping the paper in the middle of the belt line. The structure is simple, and a feeding mechanism must be made for each product, which has low compatibility and relatively high cost. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a paper feeding mechanism, which adds a single paper separation mechanism and a multiple anti-sticking paper mechanism in design, has good positioning, stable structure, good flexibility, and is compatible with paper products of various sizes.

[0005] The present invention adopts the following technical solution:

[0006] A paper feeding mechanism comprises a paper positioning assembly and a suction material handling assembly, wherein the paper positioning assembly is used to position the paper at a predetermined position below the suction material handling assembly; the suction material handling assembly comprises a lifting mechanism and a suction cup mechanism, wherein the lifting mechanism drives the suction cup mechanism to be lifted and lowered above the paper; the suction cup mechanism comprises a first suction cup assembly and a second suction cup assembly, wherein the second suction cup assembly is hinged to the first suction cup assembly through a horizontally arranged rotating shaft, and the second suction cup assembly can swing around the rotating shaft so that the suction cups on the first suction cup assembly and the second suction cup assembly are located on two intersecting planes; the suction cup mechanism also comprises a swinging device for driving the second suction cup assembly to swing.

[0007] Preferably, the lifting mechanism includes a slide rail arranged in a vertical direction, a slider sliding along the slide rail, a mounting plate fixed on the slider, and a lifting device driving the slider to slide along the slide rail, and the first suction cup assembly is fixed on the mounting plate; the swinging device is a cylinder arranged in a vertical direction on the mounting plate, and the piston rod of the cylinder is connected to the second suction cup assembly.

[0008] Preferably, the first suction cup assembly includes a suction cup assembly and a first connecting plate, the second suction cup assembly includes a suction cup assembly and a second connecting plate, the first connecting plate is fixed to the mounting plate, and the second connecting plate swings on the first connecting plate through the rotating shaft; the piston rod of the cylinder is hinged to the second connecting plate, and the cylinder body of the cylinder is hinged to the mounting plate.

[0009] Preferably, the suction cup assembly includes a fixed base plate, a movable base plate, an adjustment plate and a suction cup, the fixed base plate and the movable base plate are parallel to each other, the adjustment plate is vertically connected to the middle of the fixed base plate, and the movable base plate is arranged on the adjustment plate so that its position can be adjusted along the axial direction of the vertical rotating shaft; the suction cups are respectively distributed at both ends of the fixed base plate and the movable base plate, and the suction cups can be adjusted along the axial position of the rotating shaft on the fixed base plate or the movable base plate; the suction cups on the first suction cup assembly are located in the same plane; the suction cups on the second suction cup assembly are located in the same plane.

[0010] Preferably, a limiting surface capable of contacting the second connecting plate is provided on the first connecting plate in the swinging direction of the second connecting plate, and when the second connecting plate contacts the limiting surface, the suction cup on the first suction cup assembly and the suction cup on the second suction cup assembly are located in the same plane.

[0011] Preferably, the paper positioning assembly includes a material box and a lifting mechanism, the material box is provided with a paper placement cavity with a top opening, the lifting mechanism is located in the paper placement cavity and is lifted and lowered for lifting the paper to a predetermined position below the suction and transport assembly; brushes are also provided on both sides of the top opening of the material box, and the brushes can contact the edge of the paper.

[0012] Preferably, the material box includes a bottom plate, side positioning plates and positioning angles, the side positioning plates are symmetrically arranged at both ends of the bottom plate, and the relative distance between the two side positioning plates is adjustable; each side positioning plate is provided with two symmetrically arranged positioning angles, and the relative distance between the two positioning angles is adjustable; the positioning angles extend in the vertical direction, and a rectangular paper placement cavity extending in the vertical direction is formed between the four positioning angles.

[0013] Preferably, a blowing device is also provided on one side of the material box, and the blowing device includes a blowing port and a plasma blower connected to the blowing port, and the blowing port is facing the direction of the paper; the blowing device is connected to a blowing cylinder arranged in a vertical direction, and the blowing cylinder drives the blowing device to move up and down.

[0014] The beneficial effects of the present invention are as follows: during the process of sucking up the paper, the swing device is activated to make the second suction cup assembly swing, so that the suction cups on the first suction cup assembly and the second suction cup assembly are located on two intersecting planes, and the paper in a bent state is sucked up by the suction cups, and the brush blocks the edge of the paper to brush off excess paper, and at the same time the blowing cylinder keeps moving up and down, and the blowing port is connected to the plasma fan to blow the plasma wind to the edge of the paper, and the static electricity of the paper is eliminated under the blowing of the plasma wind, making it easier to fall; the present invention adds a single-sheet separation mechanism and a multiple anti-sticking paper mechanism in design, which has good positioning, stable structure, good flexibility, and is compatible with paper products of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a preferred understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall structure of the material suction and handling assembly of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the connection between the first suction cup assembly and the second suction cup assembly of the present invention;

[0019] Figure 4 It is a schematic diagram of the overall structure of the paper positioning assembly of the present invention;

[0020] Figure 5 It is a schematic diagram of the installation position of the blowing device of the present invention on the material box.

[0021] The markings in the figure are: 1. Paper positioning component; 2. Material suction and handling component; 3. Lifting mechanism; 4. Suction cup mechanism; 5. First suction cup assembly; 6. Second suction cup assembly; 7. Rotating shaft; 8. Slide rail; 9. Slider; 10. Mounting plate; 11. Lifting device; 12. Cylinder; 13. Suction cup assembly; 14. First connecting plate; 15. Second connecting plate; 16. Fixed base plate; 17. Movable base plate; 18. Adjusting plate; 19. Suction cup; 20. Material box; 21. Material lifting mechanism; 22. Brush; 23. Bottom plate; 24. Side positioning plate; 25. Positioning angle steel; 26. Blowing port; 27. Blowing cylinder. DETAILED DESCRIPTION

[0022] The specific implementation of the present invention will be described below with reference to the accompanying drawings.

[0023] like Figures 1 to 5As shown, a paper feeding mechanism of this embodiment includes a paper positioning component 1 and a suction material handling component 2. The paper positioning component 1 is used to position the paper at a predetermined position below the suction material handling component 2; the suction material handling component 2 includes a lifting mechanism 3 and a suction cup mechanism 4. The lifting mechanism 3 drives the suction cup mechanism 4 to move upward and downward above the paper; the suction cup mechanism 4 includes a first suction cup component 5 and a second suction cup component 6. The second suction cup component 6 is hinged to the first suction cup component 5 through a horizontally arranged rotating shaft 7. The second suction cup 6 component can swing around the rotating shaft 7 so that the first suction cup component The suction cup assembly 5 and the suction cup 19 on the second suction cup assembly 6 are located on two intersecting planes; the suction cup mechanism 4 also includes a swinging device for driving the second suction cup assembly 6 to swing, and the lifting mechanism 3 drives the suction cup mechanism 4 to descend. When sucking the paper, the swinging device is activated to swing the second suction cup assembly 6, so that the suction cups 19 on the first suction cup assembly 5 and the second suction cup assembly 6 are located on two intersecting planes, and the paper is sucked up in a bent state by the suction cup 19, which is beneficial to the separation of the papers, and then the lifting mechanism 3 drives the suction cup mechanism 4 to rise to suck the topmost paper and transport it to the next station.

[0024] The lifting mechanism 3 includes a slide rail 8 arranged in a vertical direction, a slider 9 sliding along the slide rail 8, a mounting plate 10 fixed on the slider 9, and a lifting device 11 driving the slider 9 to slide along the slide rail 8. The lifting device 11 includes a motor, a lead screw and a second slider, the lead screw is threadedly connected to the second slider, the mounting plate 10 is fixed on the second slider, the first suction cup assembly 5 is fixed on the mounting plate 10, and the suction cup mechanism 4 can be driven to move up and down through the lifting device 11;

[0025] The swinging device is a cylinder 12 arranged on the mounting plate 10 in the vertical direction, and the piston rod of the cylinder 12 is connected to the second suction cup assembly 6; the first suction cup assembly 5 includes a suction cup assembly 13 and a first connecting plate 14, the second suction cup assembly 6 includes a suction cup assembly 13 and a second connecting plate 15, the first connecting plate 14 is fixed on the mounting plate 10, and the second connecting plate 15 swings on the first connecting plate 14 through the rotating shaft 7; the piston rod of the cylinder 12 is hinged to the second connecting plate 15, and the cylinder body of the cylinder 12 is hinged to the mounting plate 10, and the second connecting plate 15 can be swung around the rotating shaft 7 on the first connecting plate 14 through the action of the cylinder 12.

[0026] The suction cup assembly 13 includes a fixed base plate 16, a movable base plate 17, an adjustment plate 18 and a suction cup 19. The fixed base plate 16 and the movable base plate 17 are parallel to each other. The adjustment plate 18 is vertically connected to the middle of the fixed base plate 16. The movable base plate 17 is adjustable along the axial direction of the vertical rotation shaft 7 and is arranged on the adjustment plate 18. The position of the movable base plate 17 and the suction cup 19 thereon can be adjusted according to the length of the paper; the suction cup 19 is respectively distributed at both ends of the fixed base plate 16 and the movable base plate 17. The suction cup 19 can be adjusted along the axial position of the rotation shaft 7 on the fixed base plate 16 or the movable base plate 17. The position of the suction cup 19 can be adjusted according to the width of the paper; the suction cup 19 on the first suction cup assembly 5 is located The suction cups 19 on the second suction cup assembly 6 are located in the same plane; a limiting surface that can contact the second connecting plate 15 is provided on the first connecting plate 14 in the swinging direction of the second connecting plate 15. When the second connecting plate 15 contacts the limiting surface, the suction cups 19 on the first suction cup assembly 5 and the suction cups 19 on the second suction cup assembly 6 are located in the same plane; in the initial state, the suction cups 19 on the first suction cup assembly 5 and the second suction cup assembly 6 are located in the same plane. When the second connecting plate 15 swings around the rotating shaft 7 on the first connecting plate 14, the suction cups 19 on the first suction cup assembly 5 and the second suction cup assembly 6 are located on two intersecting planes, and the paper in a bent state can be sucked up by the suction cups 19.

[0027] Among them, the paper positioning component 1 includes a material box 20 and a lifting mechanism 21. The material box 20 is provided with a paper placement cavity with a top opening. The lifting mechanism 21 is located in the paper placement cavity and moves up and down to lift the paper to a predetermined position below the suction and transport component 2; brushes 22 are also provided on both sides of the top opening of the material box 20. The brushes 22 can contact the edge of the paper. During the process of sucking up the paper, the paper will be electrostatically adsorbed together, and the edge of the paper will be blocked by the brush 22. Especially when the paper is sucked up in a bent state by the suction cup 19, the brush 22 can more easily brush off the excess paper to ensure that only one sheet of paper is sucked up.

[0028] The material box 20 includes a bottom plate 23, side positioning plates 24 and positioning angle steels 25. The side positioning plates 24 are symmetrically arranged at both ends of the bottom plate 23. The relative distance between the two side positioning plates 24 is adjustable, and the distance between the two side positioning plates 24 can be adjusted according to the length of the paper; each side positioning plate 24 is provided with two symmetrically arranged positioning angle steels 25, and the relative distance between the two positioning angle steels 25 is adjustable, and the distance between the two positioning angle steels 25 can be adjusted according to the width of the paper; the positioning angle steels 25 extend in the vertical direction, and a rectangular paper placement cavity extending in the vertical direction is formed between the four positioning angle steels 25.

[0029] A blowing device is also provided on one side of the material box 20. The blowing device includes a blowing port 26 and a plasma fan connected to the blowing port 26. The blowing port 26 faces the direction of the paper. The blowing device is connected to a blowing cylinder 27 arranged in a vertical direction. The blowing cylinder 27 drives the blowing device to move up and down. When the paper is sucked up, the blowing cylinder 27 moves up and down all the time. The blowing port 26 is connected to the plasma fan to blow the plasma wind to the edge of the paper. Under the blowing of the plasma wind, the static electricity of the paper is eliminated, making it easier to fall.

[0030] Working principle of the present invention:

[0031] The whole stack of paper is manually arranged and put into the material box 20 of the paper positioning component 1. The paper is positioned by the positioning angle steel 25. When the sensor detects that there is no material, the lifting mechanism 21 starts to work and starts to lift the paper up intermittently within the program setting value. The brush fixing plate fixes the brush 22. During the suction process, the paper will be electrostatically adsorbed together, and the edge of the paper is blocked by the brush 22. The brush 22 brushes off the excess paper. At the same time, the blowing cylinder 27 keeps moving up and down, and the blowing port 26 is connected to the plasma fan to blow the plasma wind to the edge of the paper. Under the blowing of the plasma wind, the static electricity of the paper is eliminated, making it easier to fall;

[0032] The material suction and transporting assembly 2 descends, and when sucking up the paper, the cylinder 12 is actuated to make the second suction cup 6 assembly swing around the rotating shaft 7, so that the suction cups 19 on the first suction cup assembly 5 and the second suction cup assembly 6 are located on two intersecting planes, and the bent paper is sucked up by the suction cup 19, so that its brush 22 is easier to brush off, and then the material suction and transporting assembly 2 rises to suck up the top layer of paper and transport it to the next station.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A paper feeding mechanism, characterized in that: The invention comprises a paper positioning assembly and a material suction and transport assembly, wherein the paper positioning assembly is used to position the paper at a predetermined position below the material suction and transport assembly; the material suction and transport assembly comprises a lifting mechanism and a suction cup mechanism, wherein the lifting mechanism drives the suction cup mechanism to be lifted and lowered above the paper; the suction cup mechanism comprises a first suction cup assembly and a second suction cup assembly, wherein the second suction cup assembly is hinged to the first suction cup assembly through a horizontally arranged rotating shaft, and the second suction cup assembly can swing around the rotating shaft so that the suction cups on the first suction cup assembly and the second suction cup assembly are located on two intersecting planes; the suction cup mechanism also comprises a swinging device for driving the second suction cup assembly to swing; The lifting mechanism comprises a slide rail arranged in a vertical direction, a slider sliding along the slide rail, a mounting plate fixed on the slider, and a lifting device driving the slider to slide along the slide rail, the lifting device comprises a motor, a lead screw and a second slider, the lead screw is threadedly connected to the second slider, and the mounting plate is fixed to the second slider; the first suction cup assembly is fixed to the mounting plate; the swing device is a cylinder arranged on the mounting plate in a vertical direction, and the piston rod of the cylinder is connected to the second suction cup assembly; The first suction cup assembly includes a suction cup assembly and a first connecting plate, the second suction cup assembly includes a suction cup assembly and a second connecting plate, the first connecting plate is fixed to the mounting plate, and the second connecting plate swings on the first connecting plate through the rotating shaft; the piston rod of the cylinder is hinged to the second connecting plate, and the cylinder body of the cylinder is hinged to the mounting plate; The suction cup assembly comprises a fixed base plate, a movable base plate, an adjustment plate and a suction cup, wherein the fixed base plate and the movable base plate are parallel to each other, the adjustment plate is vertically connected to the middle of the fixed base plate, and the movable base plate is arranged on the adjustment plate so as to be adjustable in position along the vertical axis direction of the rotating shaft; the suction cups are respectively distributed at both ends of the fixed base plate and the movable base plate, and the suction cups can be adjusted in axial position along the rotating shaft on the fixed base plate or the movable base plate; the suction cups on the first suction cup assembly are located in the same plane; the suction cups on the second suction cup assembly are located in the same plane; The first connecting plate is provided with a limiting surface capable of contacting the second connecting plate in the swinging direction of the second connecting plate, and when the second connecting plate contacts the limiting surface, the suction cup on the first suction cup assembly and the suction cup on the second suction cup assembly are located in the same plane; The paper positioning assembly includes a material box and a material lifting mechanism, wherein a paper placement cavity with a top opening is provided in the material box, and the material lifting mechanism is located in the paper placement cavity and moves up and down to lift the paper to a predetermined position below the suction and transport assembly; brushes are also provided on both sides of the top opening of the material box, and the brushes can contact the edges of the paper; a blowing device is also provided on one side of the material box, and the blowing device includes a blowing port and a plasma blower connected to the blowing port, and the blowing port faces the direction of the paper; the blowing device is connected to a blowing cylinder arranged in a vertical direction, and the blowing cylinder drives the blowing device to move up and down.

2. A paper feeding mechanism according to claim 1, characterized in that: The material box includes a bottom plate, side positioning plates and positioning angle steels. The side positioning plates are symmetrically arranged at both ends of the bottom plate, and the relative distance between the two side positioning plates is adjustable; each side positioning plate is provided with two symmetrically arranged positioning angle steels, and the relative distance between the two positioning angle steels is adjustable; the positioning angle steels extend in the vertical direction, and a rectangular paper placement cavity extending in the vertical direction is formed between the four positioning angle steels.

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