Paper corrector of scanner

Abstract

The utility model relates to the technical field of scanner paper deviation correction, in particular to a scanner paper deviation corrector which comprises a placing plate, and a paper body is placed on the top face of the placing plate. Size positioning scales and a convex sliding groove are formed in the top surface of the placing plate, and a discharging inclined groove is formed in the bottom surface of the convex sliding groove; a deviation rectifying structure is installed on the inner side of the containing plate and comprises a threaded rod, and the threaded rod is movably installed on the inner side of the size positioning scales through a bearing. By arranging the rotatable spiral scraper, when the spiral scraper rotates, wrinkles at the four corners of the paper body can be flattened from the inner side to the outer side, weight increase of the wrinkles can be effectively avoided, after the wrinkles are flattened, the spiral scraper can be pressed on the upper sides of the wrinkles so as to press and fix the paper body at the four corners, the fixing effect is smaller, and the paper body is not prone to falling off. And the contact area is smaller, so that the characters on the paper main body are prevented from being shielded.

Description

Technical Field

[0001] This utility model relates to the field of paper alignment technology for scanners, specifically a paper alignment device for scanners. Background Technology

[0002] A document scanner is mainly used to scan documents. To use it, you place the paper to be scanned onto the scanning plate and then activate the optical unit to begin scanning the document.

[0003] In response, Chinese patent application number CN201921178609.2 discloses a paper alignment mechanism for a document scanner, including a frame with a rectangular cavity for accommodating paper. A pressing component for pressing the paper is rotatably connected to one side of the frame. A smoothing component for smoothing paper wrinkles is provided on the surface of the frame. The pressing component includes a pressure plate for pressing the paper, one end of which extends into the rectangular cavity. Both ends of the pressure plate are fixedly connected to a rotating shaft that rotatably connects the pressure plate to the frame. A torsion spring that provides torque for the pressure plate to press the paper is engaged between the rotating shaft and the frame. The smoothing component includes two sliding plates fixedly mounted in parallel on both sides of the frame, with a pressure roller that can reciprocate along the length of the sliding plates between them. This invention can smooth out paper wrinkles during document scanning and maintain paper tension after smoothing, thus facilitating document scanning.

[0004] This scanner can smooth paper by setting a pressure plate and pressure roller on the frame. However, the movement of the pressure plate and pressure roller requires manual operation by the user, which is cumbersome and not conducive to quick use of the device. In addition, the pressure roller moves in one direction and cannot smooth the wrinkles at the four corners of the paper, resulting in poor performance and affecting the user experience.

[0005] Therefore, in order to solve the above problems, a paper alignment device for scanners is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a paper correction device for a scanner, in order to solve the problems mentioned in the background art. In the prior art, the scanner can smooth the paper by setting a pressure plate and a pressure roller on the frame. However, the movement of the pressure plate and the pressure roller requires manual operation by the user, which is cumbersome and not conducive to the quick use of the device. In addition, the pressure roller moves in one direction and cannot smooth the wrinkles at the four corners of the paper, resulting in poor performance and affecting the user experience of the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a paper alignment device for a scanner, comprising: a placement plate, wherein a paper body is placed on the top surface of the placement plate;

[0008] The top surface of the placement plate is provided with a size positioning scale and a convex sliding groove, and the bottom surface of the convex sliding groove is provided with a discharge inclined groove.

[0009] An alignment structure is installed on the inner side of the placement plate. The alignment structure includes a threaded rod, which is movably mounted on the inner side of the dimensional positioning scale via a bearing. A micro motor is fixedly installed inside the placement plate. A convex slider is slidably installed on the inner side of the dimensional positioning scale. A threaded groove is formed on the side wall of the convex slider. An installation cavity is formed on the top surface of the convex slider. A micro motor is fixedly installed inside the installation cavity. A spiral scraper is fixedly connected to the output end of the micro motor. An inclined surface is formed on the bottom surface of the spiral scraper.

[0010] Preferably, the size positioning scale is provided in three sets, the sides of the three sets of size positioning scale are parallel to the top side of the placement plate, and the size of the size positioning scale is adapted to the size of the paper body.

[0011] Preferably, the convex groove is inclined and located at the four corners of the three sets of size positioning scales.

[0012] Preferably, the end of the discharge chute penetrates the side wall of the placement plate.

[0013] Preferably, the output end of the micro motor is fixedly connected to the threaded rod, and the threaded rod is threadedly connected to the threaded groove.

[0014] Preferably, the spiral scraper is located on the top surface of the placement plate, and the inclined surface is in contact with the top surface of the paper body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a rotatable spiral scraper, the spiral scraper can flatten the wrinkles at the four corners of the paper body from the inside to the outside when rotating, which can effectively avoid the wrinkles from getting worse. After the wrinkles are flattened, the spiral scraper can press on the upper side of the wrinkles to press and fix the paper body at the four corners. The fixing effect is smaller and the contact area is smaller, thus avoiding the obstruction of the text on the paper body.

[0016] This invention features a correction structure. The paper body is placed on the top surface of a placement plate, and its edges are aligned with the corresponding dimensional markings according to its dimensions. The paper body is held down, and the controller is activated to start a micro-motor. The micro-motor drives a threaded rod to rotate. The threaded rod is threaded into a threaded groove, and its rotation causes convex sliders to slide within the groove, bringing the four sets of convex sliders close to the four corners of the paper body. The micro-motor then activates a spiral scraper, which contacts the paper body. Guided by the inclined plane, the end of the spiral scraper rotates... The paper is rotated to the center of the top surface. As the spiral scraper continues to rotate, the end of the spiral scraper contacts the folds at the four corners of the paper from the center of the top surface. The scraper then pushes the folds from the inside out, allowing them to be smoothly flattened. This effectively prevents the folds from becoming heavier. After the folds are flattened, the spiral scraper can press on the top of the folds to press and fix the paper at the four corners. This results in a smaller fixing effect and a smaller contact area, preventing the text on the paper from being obscured. Debris that falls into the convex groove can be discharged from the side of the placement plate through the discharge chute, ensuring the smooth movement of the convex slider within the dimensional positioning scale. Attached Figure Description

[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the structure of this utility model;

[0019] Figure 3 This is an exploded view of the correction structure of this utility model;

[0020] Figure 4 This is a front view sectional view of the convex chute and discharge chute of this utility model.

[0021] In the diagram: 1. Placement plate; 11. Size positioning scale; 12. Convex groove; 13. Discharge chute; 14. Paper body; 2. Correction structure; 21. Threaded rod; 22. Micro motor; 23. Convex slider; 24. Threaded groove; 25. Mounting cavity; 26. Micro motor; 27. Spiral scraper; 28. Inclined surface. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 One embodiment provided by this utility model:

[0024] The placement plate 1, paper body 14, controller, micro motor 22 and micro motor 26 used in this application are products that can be purchased directly from the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0025] A paper guide for a scanner includes: a placement plate 1, on the top surface of which a paper body 14 is placed;

[0026] The top surface of the placement plate 1 is provided with a size positioning scale 11 and a convex groove 12, and the bottom surface of the convex groove 12 is provided with a discharge chute 13.

[0027] A correction structure 2 is installed on the inner side of the placement plate 1. The correction structure 2 includes a threaded rod 21, which is movably mounted on the inner side of the dimension positioning scale 11 via a bearing. A micro motor 22 is fixedly installed inside the placement plate 1. A convex slider 23 is slidably installed on the inner side of the dimension positioning scale 11. A threaded groove 24 is formed on the side wall of the convex slider 23, and a mounting cavity 25 is formed on the top surface of the convex slider 23. A micro motor 26 is fixedly installed inside the mounting cavity 25. The output end of the paper body 14 is fixedly connected to a spiral scraper 27. The bottom surface of the spiral scraper 27 is provided with an inclined surface 28. When the spiral scraper 27 rotates, it can flatten the wrinkles at the four corners of the paper body 14 from the inside to the outside, which can effectively prevent the wrinkles from getting worse. After the wrinkles are flattened, the spiral scraper 27 can press on the upper side of the wrinkles to press and fix the paper body 14 at the four corners. The fixing effect is smaller and the contact area is smaller, which avoids obscuring the text on the paper body 14.

[0028] Furthermore, the size positioning scale 11 has three sets, the sides of the three sets of size positioning scale 11 are parallel to the top side of the placement plate 1, the size of the size positioning scale 11 is adapted to the size of the paper body 14, and the setting of the three sets of size positioning scale 11 can provide positioning for the placement of three sizes of paper body 14 on the top surface of the placement plate 1.

[0029] Furthermore, the convex groove 12 is inclined and located at the four corners of the three sets of size positioning scales 11. When the convex slider 23 moves in the convex groove 12, it can move closer to the four corners of the paper body 14.

[0030] Furthermore, the end of the discharge chute 13 penetrates the side wall of the placement plate 1, and the debris in the convex chute 12 can be discharged through the discharge chute 13.

[0031] Furthermore, the output end of the micro motor 22 is fixedly connected to the threaded rod 21, and the threaded rod 21 is threadedly connected to the threaded groove 24. The micro motor 22 provides power for the rotation of the threaded rod 21, and the rotation of the threaded rod 21 can drive the convex slider 23 to move through the threaded groove 24.

[0032] Furthermore, the spiral scraper 27 is located on the top surface of the placement plate 1, and the inclined surface 28 is in contact with the top surface of the paper body 14. The inclined surface 28 can provide guidance for the spiral scraper 27 to rotate to the top surface of the paper body 14.

[0033] Working principle: Before use, place the paper body 14 on the top surface of the placement plate 1, and align the edge of the paper body 14 with the edge of the size positioning scale 11 corresponding to the size according to the size of the paper body 14.

[0034] Press and hold the paper body 14 and operate the controller to start the micro motor 22. The micro motor 22 drives the threaded rod 21 to rotate. The threaded rod 21 is threadedly connected to the threaded groove 24. The rotation of the threaded rod 21 drives the convex slider 23 to slide inside the convex groove 12 through the threaded groove 24, so that the four sets of convex sliders 23 are close to the four corners of the paper body 14. Start the micro motor 26. The micro motor 26 drives the spiral scraper 27 to rotate. The spiral scraper 27 then contacts the paper body 14, and under the guidance of the inclined surface 28, the end of the spiral scraper 27... The paper body 14 is rotated to the center of the top surface. As the spiral scraper 27 continues to rotate, the end of the spiral scraper 27 contacts the folds at the four corners of the paper body 14 from the center of the top surface of the paper body 14. Then, it pushes the folds from the inside out, so that the folds can be smoothly flattened. This can effectively prevent the folds from getting worse. After the folds are flattened, the spiral scraper 27 can press on the upper side of the folds to press and fix the paper body 14 at the four corners. The fixing effect is smaller and the contact area is smaller, which avoids obscuring the text on the paper body 14.

[0035] During use, debris that falls into the convex groove 12 can be discharged from the side of the placement plate 1 via the discharge chute 13 to ensure the smooth movement of the convex slider 23 within the size positioning scale 11.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A paper guide for a scanner, comprising: Placement board (1), on the top surface of which a paper body (14) is placed; Its features are: The top surface of the placement plate (1) is provided with a size positioning scale (11) and a convex groove (12), and the bottom surface of the convex groove (12) is provided with a discharge chute (13). The inner side of the placement plate (1) is equipped with a correction structure (2). The correction structure (2) includes a threaded rod (21). The threaded rod (21) is movably installed on the inner side of the size positioning scale (11) through a bearing. A micro motor (22) is fixedly installed inside the placement plate (1). A convex slider (23) is slidably installed on the inner side of the size positioning scale (11). A threaded groove (24) is opened on the side wall of the convex slider (23). An installation cavity (25) is opened on the top surface of the convex slider (23). A micro motor (26) is fixedly installed on the inner side of the installation cavity (25). A spiral scraper (27) is fixedly connected to the output end of the micro motor (26). An inclined surface (28) is opened on the bottom surface of the spiral scraper (27).

2. The paper alignment device for a scanner according to claim 1, characterized in that: The size positioning scale (11) has three sets. The sides of the three sets of size positioning scale (11) are parallel to the top side of the placement plate (1). The size of the size positioning scale (11) is adapted to the size of the paper body (14).

3. The paper alignment device for a scanner according to claim 1, characterized in that: The convex groove (12) is inclined and located at the four corners of the three sets of size positioning scales (11).

4. The paper alignment device for a scanner according to claim 1, characterized in that: The end of the discharge chute (13) penetrates the side wall of the placement plate (1).

5. The paper alignment device for a scanner according to claim 1, characterized in that: The output end of the micro motor (22) is fixedly connected to the threaded rod (21), and the threaded rod (21) is threadedly connected to the threaded groove (24).

6. The paper alignment device for a scanner according to claim 1, characterized in that: The spiral scraper (27) is located on the top surface of the placement plate (1), and the inclined surface (28) is in contact with the top surface of the paper body (14).

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