Scanning device for paper stacking detection

Abstract

The utility model relates to the field of scanning reading machine equipment, in particular to a scanning device for paper overlapping detection, which comprises a scanning device body, a paper feeding bin, a paper discharging bin and a paper feeding mechanism, and the paper feeding bin is positioned at the lower part of the paper discharging bin; the paper feeding mechanism is arranged in the scanning device body and comprises a paper rubbing mechanism and an anti-overlapping mechanism; the paper twisting mechanism is located on the upper portion of the paper feeding bin, an anti-overlapping mechanism is arranged on the lower portion of the paper twisting mechanism, and an overlapping detection mechanism is arranged in the scanning device body on the rear side of the anti-overlapping mechanism. The paper twisting mechanism and the anti-overlapping mechanism are used for progressive conveying of paper, and meanwhile the overlapping detection mechanism arranged on the rear sides of the paper twisting mechanism and the anti-overlapping mechanism monitors whether the paper conveyed by the paper twisting mechanism is overlapped or not in real time and gives an alarm in time, so that the situation that paper conveying is affected by paper jam due to the fact that the paper enters the paper feeding mechanism in an overlapped mode is prevented.

Description

Technical Field

[0001] The utility model relates to the field of scanning reader equipment, in particular to a scanning device for paper stacking detection. Background Art

[0002] A scanner is a device that converts paper documents into electronic documents, also known as a scanner or scanner reader. It can scan the text and images on paper documents, convert them into digital signals, and store them in computers or other digital devices. Scanners are widely used in office, education, scientific research and other fields, which can greatly improve the efficiency and convenience of document processing.

[0003] The scanning reader transports paper through a paper pickup mechanism, a damping mechanism and a paper feed mechanism. The paper is separated and transmitted between the paper pickup mechanism and the damping mechanism. If the separation is not complete, two sheets of paper will enter the paper feed mechanism at the same time, causing a paper jam. Further optimization of the design is needed. Utility Model Content

[0004] In order to further solve the technical problem of easy paper jam in scanning readers based on the prior art, the utility model provides a scanning device for paper stacking detection, which further optimizes the paper separation function of the damping mechanism and the paper stacking detection function.

[0005] The technical problem of the utility model is achieved through the following technical scheme: a scanning device for paper superposition detection, comprising a scanning device body, a paper feed bin, a paper output bin and a paper feeding mechanism, wherein the paper feed bin is located at the lower part of the paper output bin; the paper feeding mechanism is arranged in the scanning device body, and is characterized in that: it comprises a paper rubbing mechanism and an anti-double-sheeting mechanism; the paper rubbing mechanism is located at the upper part of the paper feed bin, an anti-double-sheeting mechanism is arranged at the lower part of the paper rubbing mechanism, and an superposition detection mechanism is arranged in the scanning device body located at the rear side of the anti-double-sheeting mechanism.

[0006] By using the above technical solution, the paper picking mechanism and the anti-double-sheeting mechanism are used to perform progressive transmission of paper. At the same time, the superimposed detection mechanism arranged on the rear side of the paper picking mechanism and the anti-double-sheeting mechanism monitors in real time whether the paper transmitted by the paper picking mechanism is double-sheeted, and issues warnings in time to prevent double-sheeted paper from entering the paper feeding mechanism, causing paper jams and affecting paper transmission.

[0007] Preferably, the superposition detection mechanism adopts an ultrasonic sensor.

[0008] By using the above technical solution, the ultrasonic generator sends out an ultrasonic pulse signal, which is transmitted to the detection area through the probe. When the ultrasonic pulse signal encounters the paper, a part of it can be reflected back from the surface of the paper, pass through the detection circuit, and be detected by the receiver. According to the time of the measured signal and the set reference time, the paper thickness can be obtained by calculation.

[0009] Preferably, the anti-retensioning mechanism includes a damping mounting frame, a damping wheel group and a damping power mechanism; the damping wheel group is rotatably mounted on the upper part of the damping mounting frame; a damping power mechanism is arranged on the damping mounting frame located at the lower part of the damping wheel group, and the output end of the damping power mechanism is connected to the damping wheel group.

[0010] Preferably, the damping wheel set adopts polyurethane rubber wheels.

[0011] Preferably, the damping power mechanism comprises a transmission motor and a transmission belt, the transmission motor is fixedly mounted on the lower part of the damping mounting frame, and the output end of the transmission motor is connected to one end of the damping wheel set through a transmission belt.

[0012] By using the above technical solution, the paper is located between the two wheel groups, the wheel group of the upper paper rubbing mechanism feeds the paper at high speed, and the damping wheel group below reverses at low speed. If it is a single sheet of paper, the gap between the wheel groups makes it difficult for the lower wheel group to retain the paper. If there are multiple sheets of paper, the lower wheel group reverses to overcome the friction between the sheets of paper and retain the extra paper to prevent duplication.

[0013] Preferably, the damping mounting frame is also provided with an adjustment mechanism, which includes an adjustment screw and a lifting plate; the adjustment screw is rotatably mounted on the damping mounting frame, and a lifting plate is provided on the adjustment screw, and the lifting plate is supported and connected to one end of the damping wheel assembly.

[0014] By using the above technical solution, the gap between the damping wheel set and the paper picking mechanism is adjusted in the adjustment mechanism, thereby adjusting the friction effect between the damping wheel set and the paper to prevent the occurrence of paper overlap.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The scanning device for paper overlap detection of the utility model optimizes the design of the anti-overlapping mechanism, and uses the paper picking mechanism and the anti-overlapping mechanism to carry out progressive transmission of paper. At the same time, the overlap detection mechanism arranged at the rear side of the paper picking mechanism and the anti-overlapping mechanism monitors in real time whether the paper transmitted by the paper picking mechanism is overlapped, and issues a warning in time to prevent overlapped paper from entering the paper feeding mechanism, causing paper jams and affecting paper transmission.

[0017] 2. Furthermore, the ultrasonic generator emits an ultrasonic pulse signal, which is transmitted to the detection area through the probe. When the ultrasonic pulse signal encounters the paper, a part of it can be reflected back from the surface of the paper, pass through the detection circuit, and be detected by the receiver. According to the time of the measurement signal and the set reference time, the paper thickness can be obtained by calculation.

[0018] 3. Secondly, the paper is located between the two wheel groups. The wheel group of the upper paper pickup mechanism feeds the paper at high speed, and the damping wheel group below reverses at low speed. If it is a single sheet of paper, the gap between the wheel groups makes it difficult for the lower wheel group to retain the paper. When there are multiple sheets of paper, the lower wheel group reverses to overcome the friction between the papers and retain the extra paper to prevent it from being repeated. Thirdly, the gap between the damping wheel group and the paper pickup mechanism is adjusted in the adjustment mechanism, thereby adjusting the friction effect between the damping wheel group and the paper to prevent the occurrence of repeated paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an external schematic diagram of a scanning device for paper stacking detection of the utility model.

[0020] Figure 2 This is a schematic diagram of the anti-re-opening mechanism structure;

[0021] Figure 3 Schematic diagram of the paper rubbing status of the anti-over-sheeting mechanism and the paper rubbing mechanism;

[0022] Figure 4 for Figure 2 A is an enlarged structural diagram of FIG.

[0023] Description of reference numerals:

[0024] 1. Scanning device body; 2. Paper feed bin; 3. Paper output bin; 4. Paper rubbing mechanism; 5. Anti-overlapping mechanism; 51. Damping mounting frame; 52. Damping wheel set; 53. Damping power mechanism; 531. Transmission motor; 532. Transmission belt; 54. Adjustment mechanism; 541. Adjustment screw; 542. Lifting plate; 6. Overlay detection mechanism. DETAILED DESCRIPTION

[0025] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or component needs to have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0027] As described above, the utility model proposes a scanning device for paper superposition detection; it includes a scanning device body 1, a paper feed bin 2, a paper output bin 3, a paper feeding mechanism, a paper picking mechanism 4 and an anti-double-sheeting mechanism 5; the paper feed bin 2 is located at the lower part of the paper output bin 3; the paper feeding mechanism is arranged in the scanning device body 1, and the paper or test paper to be scanned enters from the paper feed port of the paper feed bin 2, and with the cooperation of the paper picking mechanism 4 and the anti-double-sheeting mechanism 5, the paper is transmitted into the paper feeding mechanism, and after being scanned by the scanning mechanism in the scanning device body 1, it is discharged from the paper output port of the paper output bin 3. The design point in this application is to optimize and improve the anti-double-sheeting mechanism 5, so as to avoid paper jam problems and perform paper superposition detection.

[0028] The paper pickup mechanism 4 is located at the upper part of the paper feed bin 2, and relies on the paper pickup wheel of the paper pickup mechanism 4 to rub the upper part of the paper, so that the paper is transmitted from the paper feed port into the scanning device body 1. The lower part of the paper pickup mechanism 4 is provided with an anti-double-sheeting mechanism 5, and the working principle of its paper feeding function is: the paper is located between the paper pickup mechanism 4 and the anti-double-sheeting mechanism 5, the wheel group of the upper paper pickup mechanism 4 feeds the paper at a high speed, and the wheel group of the lower anti-double-sheeting mechanism 5 reverses at a low speed. If it is a single sheet of paper, the gap between the wheel groups of the upper paper pickup mechanism 4 makes the wheel group of the lower anti-double-sheeting mechanism 5 insufficient to retain the paper. When there are multiple sheets of paper, The wheel group of the anti-double-sheeting mechanism 5 below is reversed to overcome the friction between the papers, retain the extra paper and prevent double-sheeting. At the same time, an overlapping detection mechanism 6 is arranged in the scanning device body 1 located at the rear side of the anti-double-sheeting mechanism. The overlapping detection mechanism 6 preferably adopts an ultrasonic sensor. The ultrasonic sensor is used to detect whether the paper transmitted into the scanning device body 1 by the paper feeding mechanism 4 and the anti-double-sheeting mechanism 5 is a single sheet of paper. If there is a situation of paper overlapping, signal transmission can be carried out in time to alarm the equipment and stop the operation of the equipment to prevent the paper from entering the paper feeding mechanism and causing serious paper jam.

[0029] As one of the specific implementation methods: the anti-retensioning mechanism 5 includes a damping mounting frame 51, a damping wheel group 52 and a damping power mechanism 53; the damping wheel group 52 is rotatably mounted on the upper part of the damping mounting frame 51; the damping wheel group 52 adopts a polyurethane rubber wheel, which has high wear resistance and can maintain a long service life under high-load and high-speed working conditions; a damping power mechanism 53 is arranged on the damping mounting frame 51 located at the lower part of the damping wheel group 52, and the damping power mechanism 53 serves as a power driving source to drive the damping wheel group 52 to rotate; specifically: the damping power mechanism 53 includes a transmission motor 531 and a transmission belt 532, the transmission motor 531 is fixedly mounted on the lower part of the damping mounting frame 51, and the output end of the transmission motor 531 is connected to one end of the damping wheel group 52 through a transmission belt 532.

[0030] As one of the specific implementations, an adjustment mechanism 54 is also provided on the damping mounting frame 51, and the adjustment mechanism 54 includes an adjustment screw 541 and a lifting plate 542; the adjustment screw 541 is rotatably mounted on the damping mounting frame 51, and a lifting plate 542 is provided on the adjustment screw 541, and the lifting plate 542 supports one end of the damping wheel group 52; the adjustment mechanism 54 adjusts the gap size between the damping wheel group 52 and the paper picking mechanism 4, thereby adjusting the friction effect between the damping wheel group 52 and the paper to prevent the occurrence of paper re-rolling.

[0031] The working principle of the utility model is as follows: firstly, the paper stacks are neatly placed at the paper feed bin 2, the equipment is started, the wheel group of the paper pickup mechanism 4 rotates at a high speed, driving the top paper to be transmitted, and the damping wheel group 52 at the bottom of the paper pickup mechanism 4 is reversed. If there is a single sheet of paper, the gap between the wheel groups makes the lower wheel group insufficient to retain the paper. If there are multiple sheets of paper, the lower wheel group is reversed to overcome the friction between the sheets of paper, retain the extra paper, and prevent duplication. After the paper enters the paper pickup mechanism 4, the ultrasonic sensor at its rear side monitors in real time whether the paper is duplicated.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A scanning device for paper stacking detection, comprising a scanning device body (1), a paper feed bin (2), a paper discharge bin (3) and a paper feed mechanism, wherein the paper feed bin (2) is located below the paper discharge bin (3); the paper feed mechanism is arranged in the scanning device body (1), and is characterized in that: The invention comprises a paper picking mechanism (4) and an anti-duplicate mechanism (5); the paper picking mechanism (4) is located at the upper part of a paper feed bin (2); the anti-duplicate mechanism (5) is arranged at the lower part of the paper picking mechanism (4); and an overlap detection mechanism (6) is arranged in a scanning device body (1) at the rear side of the anti-duplicate mechanism.

2. A scanning device for paper stacking detection according to claim 1, characterized in that: The superposition detection mechanism (6) adopts an ultrasonic sensor.

3. A scanning device for paper stacking detection according to claim 1, characterized in that: The anti-retensioning mechanism (5) comprises a damping mounting frame (51), a damping wheel set (52) and a damping power mechanism (53); the damping wheel set (52) is rotatably mounted on the upper part of the damping mounting frame (51); the damping power mechanism (53) is arranged on the damping mounting frame (51) located below the damping wheel set (52), and the output end of the damping power mechanism (53) is connected to the damping wheel set (52).

4. A scanning device for paper stacking detection according to claim 3, characterized in that: The damping wheel set (52) is made of polyurethane rubber wheels.

5. The scanning device for paper stacking detection according to claim 3, characterized in that: The damping power mechanism (53) comprises a transmission motor (531) and a transmission belt (532); the transmission motor (531) is fixedly mounted on the lower part of the damping mounting frame (51); and the output end of the transmission motor (531) is connected to one end of the damping wheel assembly (52) via a transmission belt (532).

6. The scanning device for paper stacking detection according to claim 3, characterized in that: The damping mounting frame (51) is also provided with an adjustment mechanism (54), the adjustment mechanism (54) comprising an adjustment screw (541) and a lifting plate (542); the adjustment screw (541) is rotatably mounted on the damping mounting frame (51), the lifting plate (542) is provided on the adjustment screw (541), and the lifting plate (542) supports one end connected to the damping wheel assembly (52).

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