Paper jam prevention device of printer

Abstract

The utility model discloses a paper jam prevention device of a printer, which comprises a paper guide plate arranged at a paper inlet of the printer, a plurality of flow guide plates for suspending paper are arranged on the inner side surface of the paper guide plate, a plurality of side plates are arranged on the inner side of the paper guide plate in parallel, and a plurality of limiting plates are arranged on the inner side surfaces of the side plates. One end of each limiting plate is bent to form a limiting part, a mounting groove is formed in the side face, facing the paper guide plate, of each limiting part, and a column body is movably mounted in each mounting groove. The paper guiding device is simple in structure, the contact area of paper can be reduced through the flow guiding plate and the limiting plate, the situation that movement of the paper is affected due to excessive friction is avoided, the paper can be limited through the limiting plate and the limiting part, paper deviation is avoided, and the paper clamping condition is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to an anti-paper jam device of a printer. Background Art

[0002] A printer is one of the output devices of a computer, used to print the results of computer processing on relevant media. When a printer is printing on paper, several sheets of paper are usually placed at the paper feed port of the printer to facilitate printing. However, when there are too many sheets of paper, once a sheet of paper is tilted or shifted, it will cause multiple sheets of paper to shift, thus causing a paper jam. If it is discovered in time, printing can be resumed. However, if it is not discovered in time, it is easy for the paper to get stuck inside the printer, causing the printer to malfunction. In the worst case, the printer may be dismantled and the jammed paper removed to resume use. In the worst case, the printer may be directly damaged, resulting in corresponding economic losses, thereby reducing the use effect of the printer and directly affecting the durability and printing efficiency of the printer. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a paper jam prevention device for a printer, which can comprehensively position the inserted paper and avoid paper jams caused by deviation, so as to solve the problems raised in the above background technology.

[0004] The utility model is realized through the following technical scheme: a paper jam prevention device of a printer comprises a paper guide installed at a paper inlet of the printer, a plurality of guide plates for suspending paper are installed on the inner side surface of the paper guide, a plurality of side plates are also arranged in parallel on the inner side of the paper guide, a plurality of limiting plates are installed on the inner side surfaces of the side plates, one end of the limiting plate is bent to form a limiting part, the limiting part is provided with an installation groove on a side surface facing the paper guide, and a column is movably installed in the installation groove.

[0005] In this embodiment, the paper guide is provided with a positioning hole opposite the limit plate, and a positioning seat is slidably installed in the positioning hole. The side plate is provided with an adjustment hole opposite the positioning seat, and an adjustment plate is inserted into the adjustment hole. One end of the adjustment plate is installed on the positioning seat.

[0006] In this embodiment, screw holes are provided on both sides of the paper guide plate opposite to the middle positioning port, and screws are threadedly connected to the screw holes. Bearings are embedded on the middle positioning seat, one end of the screw is installed in the inner ring of the bearing, and the other end extends to the outside, and a handwheel is installed.

[0007] In this embodiment, both sides of the positioning opening are provided with sliding grooves, both sides of the positioning seat are protruded to form sliders, and the sliders are slidably arranged in the sliding grooves.

[0008] In this embodiment, metal sheets are embedded on both sides of the adjustment plate, and anti-slip patterns are provided on the outer sides of the metal sheets, and the anti-slip patterns are in contact with the inner wall surface of the adjustment port.

[0009] In this embodiment, the limiting portion and the limiting plate are arranged in an "L"-shaped structure.

[0010] In this embodiment, the cross-sections of the mounting groove and the column are both cylindrical structures, the opening of the mounting groove is smaller than the diameter of the column, and a portion of the column extends to the outside along the opening of the mounting groove.

[0011] The beneficial effects of the present invention are as follows: the present invention has a simple structure, and the contact area of ​​the paper can be reduced by the guide plate and the limit plate, thereby avoiding the movement of the paper being affected by excessive friction; and the paper can be restricted by the limit plate and the limit part, thereby avoiding the deviation of the paper and greatly reducing the situation of paper jam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a side view of the utility model;

[0015] Figure 3 It is a top view of the utility model.

[0016] Among them, 1. paper guide plate; 2. guide plate; 3. side plate; 4. limit part; 5. adjustment plate; 6. positioning port; 7. positioning seat; 8. screw; 9. hand wheel; 10. limit plate; 11. column. DETAILED DESCRIPTION

[0017] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0018] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0019] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0020] like Figure 1 、 Figure 2 and Figure 3 As shown, the utility model is a paper jam prevention device for a printer, comprising a paper guide 1 installed at the paper inlet of the printer, a plurality of guide plates 2 for suspending the paper are installed on the inner side surface of the paper guide 1, a plurality of side plates 3 are also arranged parallel to the inner side of the paper guide 1, a plurality of limiting plates 10 are installed on the inner side surfaces of the side plates 3, one end of the limiting plates 10 is bent to form a limiting portion 4, and the limiting portion 4 is provided with a mounting groove on the side surface facing the paper guide 1, and a column 11 is movably installed in the mounting groove.

[0021] In this embodiment, the paper guide paper 1 is provided with a positioning hole 6 opposite the limit plate 10, and a positioning seat 7 is slidably installed in the positioning hole 6. The side plate 3 is provided with an adjustment hole opposite the positioning seat 7, and an adjustment plate 5 is inserted into the adjustment hole. One end of the adjustment plate 5 is installed on the positioning seat 7.

[0022] In this embodiment, screw holes are provided on both sides of the paper guide 1 opposite to the middle positioning port 6, and screw rods 8 are threadedly connected to the screw holes. Bearings are embedded on the middle positioning seat 7, and one end of the screw rod 8 is installed in the inner ring of the bearing, and the other end extends to the outside, and a hand wheel 9 is installed.

[0023] In this embodiment, there are sliding grooves on both sides of the positioning port 6, and both sides of the positioning seat 7 are protruded to form sliders, which are slidably arranged in the sliding grooves, so that the positioning seat can only move back and forth along the sliding grooves, thereby preventing the positioning seat from detaching from the positioning port.

[0024] In this embodiment, metal sheets are embedded on both side surfaces of the adjustment plate 5, and anti-slip grooves are provided on the outer side surfaces of the metal sheets. The anti-slip grooves are arranged in contact with the inner wall surface of the adjustment port. The metal sheets increase the wear resistance and can better frictionally position the side plates and limit plates after movement.

[0025] In this embodiment, the limiting portion 4 and the limiting plate 10 are arranged in an "L"-shaped structure, so that the limiting portion has a downward limiting effect.

[0026] In this embodiment, the cross-sections of the mounting groove and the column 11 are both cylindrical structures, the opening of the mounting groove is smaller than the diameter of the column 11, and a portion of the column 11 extends to the outside along the opening of the mounting groove.

[0027] When in use, stacked papers can be placed on the inner side of the paper guide and contact the guide plate. The guide plate reduces the contact area with the paper guide, and the distance between the limit plates can be adjusted according to the width of the paper. When adjusting, the screw can be directly rotated by the hand wheel to move the screw inward or outward along the screw hole. The movement of the screw pushes the positioning seat, the adjustment plate, the side plate and the limit plate until the limit plate contacts the side of the paper, thereby increasing its stability after placement and avoiding paper jams caused by deviation.

[0028] The contact area of ​​the side of the paper is reduced by the limiting plate. In order to prevent the outermost side from warping or swinging outward, the side plate can be pressed down along the adjusting plate. The movement of the side plate drives the limiting plate and the limiting part until the main body on the limiting part contacts the outermost paper. The distance of the limiting part can be adjusted according to the printing degree of the paper, thereby increasing the stability of the paper in the front and back.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A paper jam prevention device for a printer, characterized in that: The invention comprises a paper guide (1) installed at the paper inlet of the printer, wherein a plurality of guide plates (2) for suspending the paper are installed on the inner side surface of the paper guide (1), a plurality of side plates (3) are also arranged in parallel on the inner side of the paper guide (1), a plurality of limiting plates (10) are installed on the inner side surfaces of the side plates (3), one end of the limiting plate (10) is bent to form a limiting portion (4), and the limiting portion (4) is provided with an installation groove on one side surface facing the paper guide (1), and a column (11) is movably installed in the installation groove.

2. The anti-paper jam device for a printer according to claim 1, characterized in that: The paper guide (1) is provided with a positioning opening (6) at a position opposite to the limiting plate (10), a positioning seat (7) is slidably installed in the positioning opening (6), and the side plate (3) is provided with an adjustment opening at a position opposite to the positioning seat (7), an adjustment plate (5) is inserted into the adjustment opening, and one end of the adjustment plate (5) is installed on the positioning seat (7).

3. The anti-paper jam device of a printer according to claim 2, characterized in that: Screw holes are provided on both sides of the paper guide (1) facing the central positioning opening (6), and screw rods (8) are threadedly connected in the screw holes. Bearings are embedded in the central positioning seat (7), and one end of the screw rod (8) is installed in the inner ring of the bearing, and the other end extends to the outside and is installed with a hand wheel (9).

4. The anti-paper jam device for a printer according to claim 2, characterized in that: Both sides of the positioning opening (6) are provided with sliding grooves, and both sides of the positioning seat (7) are protruded to form sliding blocks, and the sliding blocks are slidably arranged in the sliding grooves.

5. The anti-paper jam device for a printer according to claim 2, characterized in that: Metal sheets are embedded and installed on both side surfaces of the adjustment plate (5), and anti-skid patterns are provided on the outer sides of the metal sheets, and the anti-skid patterns are arranged in contact with the inner wall surface of the adjustment port.

6. The anti-paper jam device for a printer according to claim 1, characterized in that: The limiting portion (4) and the limiting plate (10) are arranged in an "L"-shaped structure.

7. The anti-paper jam device for a printer according to claim 1, characterized in that: The cross sections of the mounting groove and the column (11) are both cylindrical structures, the opening of the mounting groove is smaller than the diameter of the column (11), and a portion of the column (11) extends to the outside along the opening of the mounting groove.

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