Paper jamming prevention paper feeding device

Abstract

A paper jamming prevention paper feeding device comprises a paper limiting part, a paper separating device and a paper feeding device body. The paper limiting part comprises a main bottom plate and a limiting device; the limiting device is arranged on the main bottom plate in a sliding manner; the paper separating device comprises a mounting frame, a negative pressure device and a paper rubbing wheel; the mounting frame is connected to the main bottom plate; the negative pressure device comprises a negative pressure machine, an exhaust pipe and a suction cup. The negative pressure machine is arranged on the mounting frame; the suction cup is movably arranged below the mounting frame and located above the limiting device. The two ends of the exhaust pipe are connected to the negative pressure machine and the suction cup respectively. The pickup roller is arranged beside the suction cup; the paper feeding device comprises an auxiliary bottom plate and a paper feeding plate; the paper feeding plate is movably arranged above the auxiliary bottom plate. The problem that when a printer feeds paper, multiple pieces of paper are prone to entering at the same time, and consequently paper jam is caused is solved.

Description

Technical Field

[0001] The utility model relates to the field of printing, in particular to a paper feeding device for preventing paper jams. Background Art

[0002] When the existing printer is working, generally multiple paper feeding structures work together to feed a large stack of paper one by one for printing. Due to structural problems, paper jams often occur. In addition, due to quality problems such as paper being too thin or too thick, damp, or too much paper being loaded at one time, paper jams may occur. Some paper may be curled or wrinkled, which may easily cause the printer to feed multiple pages at one time, thus causing paper jams. Therefore, a device is needed to prevent multiple sheets of paper from being fed at one time when the printer is feeding paper. Utility Model Content

[0003] The utility model aims to provide a paper feeding device for preventing paper jams, which solves the problem that when a printer feeds paper, multiple sheets of paper are easily fed in at the same time, thus causing paper jams.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] A paper feeding device for preventing paper jams, comprising:

[0006] The paper limiting part comprises a main bottom plate and a limiting device; the limiting device is slidably arranged on the main bottom plate;

[0007] The paper separation device comprises a mounting frame, a negative pressure device and a paper pickup wheel; the mounting frame is connected to the main bottom plate; the negative pressure device comprises a negative pressure machine, an air extraction pipe and a suction cup; the negative pressure machine is arranged on the mounting frame; the suction cup is movably arranged below the mounting frame and above the limiting device; the two ends of the air extraction pipe are respectively connected to the negative pressure machine and the suction cup; the paper pickup wheel is arranged beside the suction cup;

[0008] The paper feeding device comprises a sub-bottom plate and a paper feeding paper; the paper feeding paper is movably arranged above the sub-bottom plate.

[0009] The main bottom plate is provided with a first screw rod, one end of which is provided with a driving motor for driving the first screw rod to rotate, thereby driving the limiting device to slide.

[0010] The limiting device includes a sliding block, two constraint plates and a first telescopic rod; a threaded through hole is provided on the sliding block; the first screw rod cooperates and passes through the threaded through hole; the two constraint plates are slidably arranged on both sides of the sliding block; vertical plates are vertically arranged on the adjacent two side edges of the constraint plates, and the constraint plates on both sides are close to each other for constraining paper; the first telescopic rod is used to drive the constraint plates to approach or move away from the sliding block.

[0011] The installation frame is n-shaped, and two sides thereof are vertically arranged on the main bottom plate and are respectively located on two outer sides of the limiting device.

[0012] The negative pressure device also includes a second telescopic rod; the fixed end of the second telescopic rod is arranged on the mounting frame; and the suction cup is arranged on the movable end of the second telescopic rod.

[0013] The pickup wheel comprises a rotating motor and a roller; the rotating motor is used to drive the roller to rotate.

[0014] The surface of the roller is provided with an anti-skid layer.

[0015] The secondary bottom plate is provided with a second screw rod, one end of which is provided with a driving motor for driving the second screw rod to rotate, thereby driving the paper feeding board to move.

[0016] The paper feeding paper board is provided with a threaded through hole and a paper separating block; the second screw rod passes through the threaded through hole; the paper separating block is arranged on one side edge of the paper feeding paper board close to the limiting device.

[0017] A pressure sensor is also provided at the bottom of the paper separation block.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] The utility model discloses a paper feeding device for preventing paper jam, which adopts a negative pressure machine and a suction cup to suck up the top of a stack of papers, and then feeds the papers to a paper feeding board through a paper pickup wheel, so as to avoid the problem of paper jam caused by multiple sheets of paper entering the printer at the same time due to the structural problem and paper quality problem of the existing printer when printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 Yes Figure 1 Enlarged view of point A in the middle.

[0022] In the figure, 101-main bottom plate, 102-sliding groove, 103-first screw rod, 201-sliding block, 202-first telescopic rod, 203-constraint plate, 204-inclined plate, 301-mounting frame, 302-mounting plate, 303-negative pressure machine, 304-exhaust pipe, 305-second telescopic rod, 306-connecting piece, 307-suction cup, 308-rotating motor, 309-roller, 401-sub-bottom plate, 402-second screw rod, 403-feeding paper board, 404-paper separating block. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figure 1 and 2 As shown, a paper feeding device for preventing paper jams includes a main bottom plate 101, a limiting device, a mounting frame 301, a negative pressure device, a pickup wheel, a sub-bottom plate 401 and a paper feeding paper board 403.

[0026] like Figure 1 As shown, a sliding groove 102 and a first screw rod 103 are provided on the main base plate 101; two ends of the first screw rod 103 are respectively arranged at two ends inside the sliding groove 102, and one end of the first screw rod 103 is also connected to a driving motor for driving the first screw rod 103 to rotate.

[0027] like Figure 1 As shown, the limiting device includes a sliding block 201, two constraint plates 203 and a first telescopic rod 202; the sliding block 201 is provided with a threaded through hole; the first screw rod 103 cooperates to pass through the threaded through hole, so that the sliding block 201 is slidably arranged in the sliding groove 102; vertical plates are vertically arranged on the adjacent two side edges of the constraint plate 203, and the constraint plates 203 on both sides are close to each other for constraining paper; the two constraint plates 203 are respectively movably arranged on both sides of the sliding block 201; the first telescopic rod 202 is connected between the constraint plate 203 and the sliding block 201, and is used to drive the constraint plate 203 to approach or move away from the sliding block 201;

[0028] Specifically, a slanted plate 204 is further provided on one side of the top surface of the restraining plate 203 to facilitate separation of paper.

[0029] like Figure 1 and 2As shown, the mounting frame 301 is n-shaped, and its two sides are vertically arranged on the main base plate 101, respectively located on the outside of the two constraint plates 203; the negative pressure device includes a negative pressure machine 303, a second telescopic rod 305, an exhaust pipe 304, a connecting piece 306 and a suction cup 307; the negative pressure machine 303 is arranged at the top of the crossbeam above the mounting frame 301; the fixed end of the second telescopic rod 305 is arranged at the bottom of the crossbeam above the mounting frame 301, and its movable end is also provided with a connecting piece 306; the suction cup 307 is arranged at the bottom of the connecting piece 306, located above the limiting device; one end of the exhaust pipe 304 is connected to the negative pressure machine 303, and the other end passes through the connecting piece 306 and is connected to the suction cup 307; the paper pickup wheel includes a rotating motor 308 and a roller 309; one side of the rotating motor 308 is connected to the side of the connecting piece 306, and the other side is connected to the roller 309 for driving the roller 309 to rotate. It should be noted that the negative pressure machine 303 and the suction cup 307 are prior art and are not improvements of this embodiment, and will not be described in detail here;

[0030] Specifically, the surface of the roller 309 is provided with an anti-skid layer.

[0031] like Figure 1 and 2 As shown, the paper feeding device includes a sub-bottom plate 401, two second screw rods 402 and a paper feeding board 403; the sub-bottom plate 401 is arranged beside the main bottom plate 101; the two second screw rods 402 are respectively vertically arranged on the top of the sub-bottom plate 401, and one end of each second screw rod is provided with a driving motor for driving the second screw rod 103 to rotate; the paper feeding board 403 is provided with a threaded through hole and a paper separation block 404; the second screw rod 402 cooperates to pass through the threaded through hole, and through the rotation of the second screw rod 402, the paper feeding board 403 is driven to move up and down along the second screw rod 402; the paper separation block 404 is strip-shaped, horizontally arranged on one side edge of the paper feeding board 403 close to the limiting device, and the paper separation block 404 is driven to move up and down through the threaded cooperation of the second screw rod 402 and the paper feeding board 403;

[0032] Specifically, a pressure sensor is further provided at the bottom of the paper separation block 404 and is electrically connected to the drive motor at the end of the second screw rod 402; it should be noted that the pressure sensor is a prior art and is not an improvement of this embodiment, and will not be described in detail here.

[0033] The working principle of this embodiment is:

[0034] The utility model provides a paper feeding device for preventing paper jam, which can put a stack of paper on the limiting device, shorten the first telescopic rod 202, make the constraint plates 203 on both sides close to each other, and constrain the paper, then the first screw rod 103 is driven by the driving motor to rotate, and drive the limiting device to move close to the paper feeding paper 403; then the paper feeding paper 403 is driven by the second screw rod 402 to move from top to bottom, so that when the paper separation block 404 on one side is attached to the top edge of the paper pile, the pressure sensor obtains a signal, so that the second screw rod 402 stops rotating, The paper feeding paper 403 stops; then the second telescopic rod 305 drives the suction cup 307 to move downward and close to the top surface of the paper pile, the negative pressure machine 303 works, the suction cup 307 extracts the air near the top surface of the paper pile, and the topmost paper is separated under the action of atmospheric pressure, so that the side close to the paper separation block 404 moves from the bottom of the paper separation block 404 to the top, and then the roller 309 rotates to rub the paper onto the paper feeding paper 403, so that the separation of the paper is completed, and then the above steps are repeated to continuously feed the paper to the paper feeding paper 403.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and changes. 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 device for preventing paper jam, characterized in that: include: The paper limiting part comprises a main bottom plate and a limiting device; the limiting device is slidably arranged on the main bottom plate; The paper separation device comprises a mounting frame, a negative pressure device and a paper pickup wheel; the mounting frame is connected to the main bottom plate; the negative pressure device comprises a negative pressure machine, an air extraction pipe and a suction cup; the negative pressure machine is arranged on the mounting frame; the suction cup is movably arranged below the mounting frame and above the limiting device; the two ends of the air extraction pipe are respectively connected to the negative pressure machine and the suction cup; the paper pickup wheel is arranged beside the suction cup; The paper feeding device comprises a sub-bottom plate and a paper feeding paper; the paper feeding paper is movably arranged above the sub-bottom plate.

2. The anti-paper jam paper feeding device according to claim 1, characterized in that: The main bottom plate is provided with a first screw rod, one end of which is provided with a driving motor for driving the first screw rod to rotate, thereby driving the limiting device to slide.

3. The anti-paper jamming paper feeding device according to claim 2, characterized in that: The limiting device includes a sliding block, two constraint plates and a first telescopic rod; a threaded through hole is provided on the sliding block; the first screw rod cooperates to pass through the threaded through hole; the two constraint plates are slidably arranged on both sides of the sliding block; vertical plates are vertically arranged on the adjacent two side edges of the constraint plates, and the constraint plates on both sides are close to each other for constraining paper; the first telescopic rod is connected between the constraint plate and the sliding block, and is used to drive the constraint plate to approach or move away from the sliding block.

4. The anti-paper jamming paper feeding device according to claim 1, characterized in that: The installation frame is n-shaped, and two sides thereof are vertically arranged on the main bottom plate and are respectively located on two outer sides of the limiting device.

5. The anti-paper jamming paper feeding device according to claim 1, characterized in that: The negative pressure device also includes a second telescopic rod; the fixed end of the second telescopic rod is arranged on the mounting frame; and the suction cup is arranged on the movable end of the second telescopic rod.

6. The anti-paper jamming paper feeding device according to claim 1, characterized in that: The pickup wheel comprises a rotating motor and a roller; the rotating motor is used to drive the roller to rotate.

7. The anti-paper jamming paper feeding device according to claim 6, characterized in that: The surface of the roller is provided with an anti-skid layer.

8. The anti-paper jamming paper feeding device according to claim 1, characterized in that: The secondary bottom plate is provided with a second screw rod, one end of which is provided with a driving motor for driving the second screw rod to rotate, thereby driving the paper feeding board to move.

9. The anti-paper jamming paper feeding device according to claim 8, characterized in that: The paper feeding paper board is provided with a threaded through hole and a paper separating block; the second screw rod passes through the threaded through hole; the paper separating block is arranged on one side edge of the paper feeding paper board close to the limiting device.

10. The anti-paper jamming paper feeding device according to claim 9, characterized in that: A pressure sensor is also provided at the bottom of the paper separation block.

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