Printing paper feeding device

Abstract

The utility model discloses a printing paper feeding device, which relates to the field of package printing and comprises a mounting frame, a paper storage mechanism arranged on the mounting frame, a lifting mechanism slidably mounted on the mounting frame along the front-back direction, a vacuum adsorption device fixed on the lifting mechanism, and a plurality of flapping mechanisms distributed at equal intervals on the front side of the vacuum adsorption device. The flapping mechanism comprises a fixing plate, the fixing plate is fixed to the front side of the vacuum adsorption equipment, and a sliding rod is slidably connected into the fixing plate. The paper feeding device has the beneficial effects that in the process that paper is adsorbed and moves upwards, the stirring mechanism intermittently stirs the pressure bearing plate, the sliding rod moves upwards, the spring is stretched, after the stirring mechanism is separated from the pressure bearing plate, the spring rebounds to enable the sliding rod to move downwards, the sliding rod flaps the paper, and therefore other paper adsorbed below the paper falls off; and the problem of material stacking is avoided, and the subsequent printing effect is guaranteed.

Description

Technical Field

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

[0002] Printing is a technology that uses processes such as plate making, inking, and pressing to transfer ink to the surface of materials such as paper, textiles, plastics, leather, PVC, and PC, to mass-produce the content of the original manuscript, including text, pictures, photographs, and anti-counterfeiting materials.

[0003] For example, patent document CN221853575U discloses a digital printing paper material feeding device. In use, paper is placed on top of a placement plate, the plate is released, and the spring's return force pushes the plate back to its original position, causing the top of the paper to be in close contact with two displacement devices. A vacuum suction device then picks up the top sheet of paper, and the displacement devices move the vacuum suction device, which in turn moves the paper to the right. Most existing technologies use vacuum suction to move the paper for feeding. Due to the electrostatic attraction between the sheets, another sheet of paper may be attached to the vacuum-suctioned paper, leading to overlapping issues and affecting subsequent printing results. Utility Model Content

[0004] The purpose of this invention is to provide a paper feeding device for printing in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A printing paper feeding device includes a mounting frame with a paper storage mechanism. A lifting mechanism is slidably mounted on the mounting frame in a front-to-back direction. A vacuum adsorption device is fixed on the lifting mechanism. Multiple equidistantly distributed tapping mechanisms are arranged in front of the vacuum adsorption device. Each tapping mechanism includes a fixed plate fixed to the front of the vacuum adsorption device. A slide rod is slidably connected inside the fixed plate. A connecting plate is fixed on the slide rod. A spring is fixed between the connecting plate and the fixed plate. A hinge seat is fixed to the top of the slide rod. A pressure plate is hinged to the front end of the hinge seat. A coil spring is provided at the hinge point between the hinge seat and the pressure plate. The top of the front end of the hinge seat extends forward by a certain distance. A toggle mechanism for moving the slide rod upward is provided in front of the tapping mechanism.

[0007] Preferably, the actuating mechanism includes support rods fixed on both sides of the lifting mechanism, a rotating shaft rotatably connected between the support rods, multiple toggle blocks fixed on the rotating shaft, each toggle block corresponding to a pressure plate, gears fixed at both ends of the rotating shaft, and a rack fixed on the lifting mechanism, with the gears meshing with the rack.

[0008] Preferably, multiple levers are arranged in a spiral pattern on the rotating shaft.

[0009] Preferably, the lifting mechanism includes a slide plate, which is slidably mounted on the mounting frame. A cylinder is fixed to the top of the slide plate, and a lifting frame is fixed to the output end of the cylinder. A vacuum adsorption device is fixed to the bottom of the lifting frame, support rods are fixed to both sides of the lifting frame, and a rack is fixed to the bottom of the slide plate.

[0010] Preferably, the mounting frame includes a base plate, a support plate is fixed to the top of the base plate, and a horizontal electric rail is fixed to the top of the support plate. There are two horizontal electric rails that are symmetrical about left and right, and the slide plate is slidably connected between the two horizontal electric rails.

[0011] Preferably, the paper storage mechanism includes a paper storage frame with an open front side. The paper storage frame is fixed to the top of the base plate. Vertical electric rails are provided on both sides of the paper storage frame and are fixed to the top of the base plate. A lifting plate is slidably connected between the two vertical electric rails and is located inside the paper storage frame.

[0012] The beneficial effects are as follows: as the paper is adsorbed and moves upward, the actuating mechanism intermittently actuates the pressure plate, causing the slide bar to move upward and the spring to be stretched. When the actuating mechanism disengages from the pressure plate, the spring rebounds and causes the slide bar to move downward. The slide bar then taps the paper, causing other paper adsorbed below to fall off, thus avoiding the problem of paper stacking and ensuring the subsequent printing effect.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a perspective view of a printing paper feeding device according to the present invention;

[0016] Figure 2 This is a perspective view of the lifting mechanism and the tapping mechanism of the printing paper feeding device described in this utility model;

[0017] Figure 3 This is a left view of the lifting mechanism and the tapping mechanism of the printing paper feeding device described in this utility model;

[0018] Figure 4 This is a perspective view of the tapping mechanism and the actuating mechanism of the printing paper feeding device described in this utility model;

[0019] Figure 5 This is a perspective view of the actuating mechanism of the printing paper feeding device described in this utility model;

[0020] Figure 6 This is a left view of the tapping mechanism of a printing paper feeding device according to this utility model;

[0021] Figure 7 This is a perspective view of the lifting mechanism of the printing paper feeding device described in this utility model;

[0022] Figure 8 This is a perspective view of the paper storage mechanism of a printing paper feeding device according to the present invention.

[0023] The reference numerals in the attached drawings are explained as follows: 1. Mounting frame; 101. Base plate; 102. Support plate; 103. Horizontal electric rail; 2. Lifting mechanism; 201. Slide plate; 202. Cylinder; 203. Lifting frame; 3. Vacuum adsorption equipment; 4. Tapping mechanism; 401. Fixing plate; 402. Slide rod; 403. Connecting plate; 404. Spring; 405. Hinge seat; 406. Pressure plate; 5. Actuating mechanism; 501. Support rod; 502. Rotating shaft; 503. Actuating block; 504. Gear; 6. Rack; 601. Reinforcing frame; 7. Paper storage mechanism; 701. Paper storage frame; 702. Vertical electric rail; 703. Lifting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] like Figures 1-8As shown, a printing paper feeding device includes a mounting frame 1, a paper storage mechanism 7 on the mounting frame 1, a lifting mechanism 2 slidably mounted on the mounting frame 1 along the front-back direction, a vacuum adsorption device 3 fixed on the lifting mechanism 2, and multiple equidistantly distributed tapping mechanisms 4 on the front side of the vacuum adsorption device 3. The tapping mechanisms 4 are used to separate two sheets of paper. The tapping mechanisms 4 include a fixing plate 401, which is fixed to the front side of the vacuum adsorption device 3 by screws. A sliding rod 402 is slidably connected inside the fixing plate 401, and a connecting plate 403 is welded to the sliding rod 402. The connecting plate 403 is connected to the fixing plate 401. A spring 404 is fixed between 01 and 02. A hinge seat 405 is fixed to the top of the slide rod 402. A pressure plate 406 is hinged to the front end of the hinge seat 405. A coil spring (not shown in the figure) is provided at the hinge point between the hinge seat 405 and the pressure plate 406. The coil spring applies an upward rotational force to the pressure plate 406. The top of the front end of the hinge seat 405 extends forward a certain distance, thereby blocking the upward rotation of the pressure plate 406, so that the pressure plate 406 remains horizontal in the initial state. At this time, the pressure plate 406 can only rotate downward. A toggle mechanism 5 is provided on the front side of the tapping mechanism 4 to move the slide rod 402 upward.

[0028] The actuating mechanism 5 includes support rods 501 fixed on both sides of the lifting mechanism 2. A rotating shaft 502 is connected between the support rods 501 via bearings. Multiple actuating blocks 503 are fixed on the rotating shaft 502, each corresponding to a pressure plate 406. When an actuating block 503 rotates clockwise, it moves the pressure plate 406 upwards. Since the pressure plate 406 cannot rotate upwards in a horizontal state, it drives the hinge seat 40... 5. Moving upwards, the hinge seat 405 drives the slide rod 402 upwards, stretching the spring 404. When the connecting plate 403 disengages from the pressure plate 406, the spring 404 quickly rebounds, causing the slide rod 402 to move downwards. The slide rod 402 then strikes the paper downwards, separating the two sheets of paper that are stuck together. When the lever 503 reverses, it will cause the pressure plate 406 to rotate downwards, preventing the hinge seat 405 from moving downwards. When the lever 503 and the pressure plate 406 are in contact, the hinge seat 405 moves downwards. After detachment, the spring between the hinge seat 405 and the pressure plate 406 restores the pressure plate 406 to a horizontal state. Gears 504 are fixed at both ends of the rotating shaft 502, and a rack 6 is fixed on the lifting mechanism 2. The gears 504 and rack 6 mesh. When the gears 504 move upward, they drive the rotating shaft 502 to rotate forward. When the gears 504 move downward, they drive the rotating shaft 502 to rotate in reverse. Multiple levers 503 are spirally distributed on the rotating shaft 502, causing the levers 503 to sequentially move the pressure plate 406. This causes the multiple slide bars 402 to sequentially tap the paper, avoiding excessive force on the paper caused by multiple slide bars 402 tapping the paper at the same time, thus preventing paper damage. In addition, compared to multiple slide bars 402 tapping the paper at the same time, the sequential tapping of the paper by multiple slide bars 402 makes the paper deformation state more irregular, which is more conducive to separating the two sheets of paper.

[0029] The lifting mechanism 2 includes a slide plate 201, which is slidably mounted on the mounting frame 1. A cylinder 202 is fixed to the top of the slide plate 201 by bolts. A lifting frame 203 is fixed to the output end of the cylinder 202. A vacuum adsorption device 3 is fixed to the bottom of the lifting frame 203. The vacuum adsorption device 3 is used to adsorb paper. The cylinder 202 is used to drive the vacuum adsorption device 3 to lift. A support rod 501 is fixed to both sides of the lifting frame 203. A rack 6 is fixed to the bottom of the slide plate 201. In addition, a reinforcing frame 601 is fixed to the front side of the rack 6. The reinforcing frame 601 is fixed to the bottom of the slide plate 201. By setting the reinforcing frame 601, the rack 6 is prevented from deforming and bending, thereby preventing the rack 6 from disengaging from the gear 504.

[0030] Mounting frame 1 includes a base plate 101, a support plate 102 is fixed to the top of the base plate 101, and a horizontal electric rail 103 is fixed to the top of the support plate 102. There are two horizontal electric rails 103, which are symmetrically arranged. The slide plate 201 is slidably connected between the two horizontal electric rails 103. The lifting mechanism 2 is driven to move back and forth through the horizontal electric rails 103, thereby causing the vacuum adsorption device 3 to move the paper backward to achieve feeding.

[0031] The paper storage mechanism 7 includes a paper storage frame 701, which is open at the front and fixed to the top of the base plate 101. Vertical electric rails 702 are provided on both sides of the paper storage frame 701 and fixed to the top of the base plate 101. A lifting plate 703 is slidably connected between the two vertical electric rails 702 and is located inside the paper storage frame 701.

[0032] Working principle: In use, stacked papers are placed on the lifting plate 703 from the front of the paper storage frame 701. The cylinder 202 drives the lifting frame 203 and the vacuum adsorption device 3 to move downwards. The vacuum adsorption device 3 adsorbs the paper on the top. Then, the cylinder 202 drives the lifting frame 203 and the vacuum adsorption device 3 to move upwards, lifting the paper. At this time, two sheets of paper may be adsorbed at the same time. During the upward movement of the lifting frame 203, the support rod 501 and the rotating shaft 502 move upwards. The rotating shaft 502 drives the gear 504 to move upwards. The gear 504 meshes with the rack 6, so the gear 504 drives the rotating shaft 502 to rotate clockwise. The rotating shaft 502 drives the lever 503 to rotate clockwise. The lever 503 moves the pressure plate 40 from bottom to top. 6. Moving upwards: Since the pressure plate 406 in the horizontal state cannot rotate upwards, the pressure plate 406 drives the hinge seat 405 to move upwards. The hinge seat 405 drives the slide rod 402 to move upwards, and the spring 404 is stretched. When the connecting plate 403 is separated from the pressure plate 406, the spring 404 quickly rebounds, causing the slide rod 402 to move downwards. The slide rod 402 strikes the paper downwards, thereby separating the two sheets of paper that are adsorbed together. Then, the horizontal electric rail 103 drives the slide plate 201 to move backwards, so that the vacuum adsorption device 3 drives the paper to move backwards to achieve feeding. As the amount of paper in the paper storage frame 701 decreases, the vertical electric rail 702 gradually drives the lifting plate 703 to move upwards, ensuring that the vacuum adsorption device 3 can adsorb the paper at the top.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A printing paper feeding device, comprising a mounting frame (1), wherein a paper storage mechanism (7) is provided on the mounting frame (1), characterized in that: A lifting mechanism (2) is slidably mounted on the mounting frame (1) along the front-back direction. A vacuum adsorption device (3) is fixed on the lifting mechanism (2). A plurality of equally spaced tapping mechanisms (4) are provided on the front side of the vacuum adsorption device (3). Each tapping mechanism (4) includes a fixing plate (401). The fixing plate (401) is fixed on the front side of the vacuum adsorption device (3). A sliding rod (402) is slidably connected inside the fixing plate (401). A connecting plate (403) is fixed on the sliding rod (402). A spring (404) is fixed between the connecting plate (403) and the fixing plate (401). A hinge seat (405) is fixed to the top of the slide rod (402). A pressure plate (406) is hinged to the front end of the hinge seat (405). A coil spring is provided at the hinge point between the hinge seat (405) and the pressure plate (406). The top of the front end of the hinge seat (405) extends forward a certain distance. A plucking mechanism (5) is provided on the front side of the striking mechanism (4) for moving the slide rod (402) upward.

2. The printing paper feeding device according to claim 1, characterized in that: The actuating mechanism (5) includes support rods (501) fixed on both sides of the lifting mechanism (2), a rotating shaft (502) is rotatably connected between the support rods (501), a plurality of paddles (503) are fixed on the rotating shaft (502), each paddle (503) corresponds to a pressure plate (406), gears (504) are fixed at both ends of the rotating shaft (502), and a rack (6) is fixed on the lifting mechanism (2), the gears (504) mesh with the rack (6).

3. The printing paper feeding device according to claim 2, characterized in that: The plurality of said paddles (503) are spirally distributed on the rotating shaft (502).

4. The printing paper feeding device according to claim 2, characterized in that: The lifting mechanism (2) includes a slide plate (201), which is slidably mounted on the mounting frame (1). A cylinder (202) is fixed on the top of the slide plate (201), and a lifting frame (203) is fixed at the output end of the cylinder (202). The vacuum adsorption device (3) is fixed at the bottom of the lifting frame (203), the support rod (501) is fixed on both sides of the lifting frame (203), and the rack (6) is fixed at the bottom of the slide plate (201).

5. A printing paper feeding device according to claim 4, characterized in that: The mounting bracket (1) includes a base plate (101), a support plate (102) is fixed on the top of the base plate (101), and a horizontal electric rail (103) is fixed on the top of the support plate (102). There are two horizontal electric rails (103) and they are symmetrical from left to right. The sliding plate (201) is slidably connected between the two horizontal electric rails (103).

6. A printing paper feeding device according to claim 5, characterized in that: The paper storage mechanism (7) includes a paper storage frame (701), the front side of which is open. The paper storage frame (701) is fixed to the top of the base plate (101). Vertical electric rails (702) are provided on both sides of the paper storage frame (701). The vertical electric rails (702) are fixed to the top of the base plate (101). A lifting plate (703) is slidably connected between the two vertical electric rails (702). The lifting plate (703) is located inside the paper storage frame (701).

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