Test paper scanning all-in-one machine and working method

Abstract

The invention relates to the technical field of scanners, in particular to a test paper scanning all-in-one machine and a working method. The scanning all-in-one machine comprises a scanner body and a paper feeding tray, the paper feeding tray is arranged on the upper side of the rear end of the scanner body, and the paper feeding tray comprises a plurality of paper supporting plates which are connected in a sliding mode; a paper pressing assembly is installed on the paper feeding tray and comprises a fixing frame, a paper pressing plate and a plate clamping piece, the fixing frame is installed on the paper feeding tray, the outer end of the paper pressing plate is rotationally connected with the fixing frame, and the inner end of the paper pressing plate is connected to a middle crease of test paper in a pressed mode. The plate clamping piece is installed on the bottom side of the fixing frame and used for fixing the multiple paper supporting plates. The problem of paper jamming in the test paper scanning process in the prior art is solved, and the scanning efficiency and quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of scanners, and in particular to an all-in-one test paper scanner and a working method. Background Art

[0002] In the field of education, the scanning and digitization of test papers is an important part of teaching management. Teachers often need to scan the test papers completed by students for electronic archiving, correction or analysis.

[0003] Since the test papers often wrinkle during answering questions and collecting, when multiple test papers are stacked, the whole stack of test papers is relatively fluffy, especially for A3-sized test papers, which will have a crease in the middle when folded in half. When the whole stack of test papers is scanned, paper jams often occur, which not only affects the scanning efficiency, but also may damage the test papers. On the other hand, the paper feed tray used to support the test papers is composed of multiple paper support plates that can slide relative to each other. During the printing process, due to vibration and the movement of the test papers, the paper support plates of the paper feed tray will slide, causing the entire paper feed tray to retract, affecting the supporting effect of the test papers and further exacerbating the problem of paper jams.

[0004] Therefore, traditional scanning equipment usually has the following technical problems when processing A3 size test papers:

[0005] 1. When the scanner scans A3-sized test papers, the paper rolling, curling, wrinkling and creases will cause a high paper jam rate, which not only affects the scanning efficiency but may also damage the test paper.

[0006] 2. During the scanning process, due to factors such as vibration, the paper support plate of the paper feed tray is prone to sliding and retracting, affecting the supporting effect and aggravating the paper jam problem. Summary of the invention

[0007] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide an all-in-one test paper scanner, aiming to solve the paper jam problem in the test paper scanning process in the prior art and improve the scanning efficiency and quality.

[0008] In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

[0009] A test paper scanner comprises a scanner body and a paper feed tray, wherein the paper feed tray is arranged on the upper side of the rear end of the scanner body, and comprises a plurality of slidably connected paper support plates; a paper pressing assembly is installed on the paper feed tray, and the paper pressing assembly comprises a fixed frame, a paper pressing paper and a card plate member, wherein the fixed frame is installed on the paper feed tray, the outer end of the paper pressing paper is rotatably connected to the fixed frame, and the inner end is crimped to the middle fold of the test paper, and the card plate member is installed on the bottom side of the fixed frame for fixing the plurality of paper support plates.

[0010] Optionally, the fixed frame includes a frame body, the side surfaces at both ends of the frame body have upwardly bent plates, a slot is formed between the bent plate and the frame body, the slot is clamped on the paper feed tray and connected by screws, and the frame body is located on the bottom side of the paper feed tray.

[0011] Optionally, mounting seats are provided on the bent plates at both ends of the frame body, a pin is provided in the middle of the mounting seat, and the outer end of the paper pressing plate is rotatably mounted on the pin of the mounting seat.

[0012] Optionally, the paper pressing paper includes a board body, the outer end of the board body has an outer protrusion, the inner end of the board body has an inner pressure plate, the outer protrusion is rotatably mounted on the frame body, and the inner pressure plate is used to press on the fold in the middle of the test paper.

[0013] Optionally, a front pressure plate is provided at the front end of the board body, and a rear pressure plate is provided at the rear end of the board body. The front pressure plate and the rear pressure plate are respectively pressed against the edges of the test paper at the front and rear ends of the middle fold, and a concave platform is also provided on the outer side of the front pressure plate.

[0014] Optionally, a groove is provided on the inner pressure plate, the groove is located at the inner end of the inner pressure plate, and a counterweight is installed in the groove.

[0015] Optionally, the frame body has downwardly bent plates on both sides, the card plate has two slots in the middle, the bent plate on the lower side of the frame body is embedded in the groove of the card plate and connected by screws.

[0016] Optionally, a positioning groove is provided on the top surface of the card plate, the positioning groove is perpendicular to the length direction of the fixing frame, and the positioning groove cooperates with the convex ridge at the bottom of the paper support plate.

[0017] Optionally, the paper feed tray includes a first paper support plate, a second paper support plate, a third paper support plate and a fourth paper support plate arranged in sequence from front to back, the card plate member is installed on the second paper support plate through a fixing frame, the rear end of the card plate member has a first abutting surface, the front side of the groove of the card plate member is provided with a second abutting surface, the front end of the card plate member is provided with a third abutting surface, the third abutting surface is clamped at the rear end of the first paper support plate, the two abutting surfaces are clamped at the front end of the third paper support plate, and the first abutting surface is clamped at the front end of the fourth paper support plate.

[0018] An embodiment of the present invention also provides a working method of the test paper scanning machine as described above, including: installing a card plate on the bottom side of a paper feed tray, the card plate fixing the relative positions of each paper support plate; rotating the paper pressure plate to both sides to open it, placing the test paper on the paper feed tray, rotating the paper pressure plate toward the middle so that the paper pressure plate is pressed against the test paper, and starting scanning.

[0019] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0020] The scanning machine is provided with a paper pressing assembly, a fixed frame is installed on the paper feed tray, and the outer end of the paper pressing plate is rotatably connected to the fixed frame. When scanning a whole stack of fluffy A3 test papers with wrinkles and creases in the middle, the paper pressing plate is pressed on the middle crease of the test paper to make the A3 test paper flat as a whole. At the same time, the cardboard installed on the lower side of the fixed frame clamps each paper support plate to prevent the paper support plate from sliding and then retracting downward, and prevent the rear end of the test paper from drooping downward. The combined effect of applying pressure at a specific position of the paper pressing plate and fixing the paper support plate by the cardboard can avoid paper jams when scanning a whole stack of test papers, ensure that the test paper passes smoothly during the scanning process, improve scanning efficiency, and ensure the integrity of the test paper.

[0021] Advantages of additional aspects of the present invention will be given in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, the spacing or size between each other is exaggerated to show the position of each part, and the schematic diagram is only used for illustration.

[0023] Figure 1 is an overall schematic diagram of a scanning all-in-one machine provided by an embodiment of the present invention;

[0024] Figure 2 is a top schematic diagram of a fixing frame provided by an embodiment of the present invention installed on a paper feed tray;

[0025] Figure 3 is a bottom schematic diagram of a fixing frame provided by an embodiment of the present invention installed on a paper feed tray;

[0026] Figure 4 is a schematic diagram of a paper pressing assembly provided by an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of a fixing frame provided by an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of a paperboard provided by an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of a card board provided in an embodiment of the present invention;

[0030] Figure 8 It is a schematic diagram of the cooperation between the card plate and each paper support plate provided by an embodiment of the present invention;

[0031] In the figure: 1, scanner body; 2, paper pressing assembly; 21, fixing frame; 211, frame body; 212, card slot; 213, mounting seat; 22, card plate member; 221, card plate body; 222, slot; 223, positioning slot; 224, first abutting surface; 225, second abutting surface; 226, third abutting surface; 23, paper pressing board; 231, board body; 232, outer protrusion; 233, rear pressing plate; 234, inner pressing plate; 235, groove; 236, front pressing plate; 3, paper feed tray; 31, first paper support plate; 32, second paper support plate; 33, third paper support plate; 34, fourth paper support plate; DETAILED DESCRIPTION

[0032] It should be noted that the following detailed descriptions are 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 of ordinary skill in the art to which the present invention belongs. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] In order to solve the technical problems mentioned in the background technology, this embodiment proposes an all-in-one test paper scanner to solve the paper jam problem in the prior art and improve scanning efficiency and quality.

[0034] like Figure 1 As shown, the test paper scanning machine of the present invention comprises a scanner body 1 and a paper feed tray 3 arranged on the upper side of the rear end thereof, wherein the paper feed tray 3 is composed of a plurality of slidingly connected paper support plates for supporting a plurality of test papers. Figure 2 , Figure 3 As shown, the paper pressing assembly 2 is provided to improve the passing rate of the test paper, especially when there are folds or wrinkles on the A3 test paper. Figure 4 As shown, the paper pressing assembly 2 is composed of a fixing frame 21, a paper pressing paper 23 and a cardboard 22. The fixing frame 21 is connected to the paper feed tray 3 by screws, and the outer end of the paper pressing paper 23 is rotatably connected to the fixing frame 21 and pressed against the middle fold of the test paper. Through this structural design, the flat state of the test paper during scanning can be effectively controlled to avoid paper jams during scanning, thereby improving scanning efficiency and the integrity of the test paper.

[0035] like Figure 5As shown, the two ends of the frame body 211 of the fixing frame 21 are provided with bending plates that bend upwards, and a slot 212 is formed between the bending plate and the frame body 211 to achieve stable fixing of the paper feed tray 3. Through the design of the slot 212, the paper feed tray 3 can be kept fixed during use (such as Figure 2 , Figure 3 As shown in the figure, the paper pressing assembly 211 is arranged on the bottom side of the paper feeding tray 3 to prevent displacement caused by external forces. At the same time, the frame body 211 is located at the bottom side of the paper feeding tray 3 to improve the stability of the entire device. Such a structural arrangement ensures that the paper pressing assembly 2 can remain stable and not easily slide during scanning, ensuring the flatness and correct position of the paper during scanning, thereby further reducing the risk of paper jams.

[0036] like Figure 4 , Figure 5 As shown, mounting seats 213 are provided on the bending plates at both ends of the frame body 211, and a pin is provided in the middle of the mounting seat 213 for rotatably mounting the outer end of the paper pressing plate 23. This design enables the paper pressing plate 23 to rotate before and after the paper roll is loaded, which is convenient for loading the test paper. After the test paper is installed, the rotation of the paper pressing plate 23 around the pin can easily press down on the fold of the test paper, provide appropriate pressure, and ensure that the test paper remains flat. The flexibility of the structure allows the paper pressing plate 23 to be easily opened after the scan is completed, preparing for the subsequent scanning operation. Through this structural design, the convenience and efficiency of the use of the paper pressing plate 23 are improved, ensuring the smoothness of the operation.

[0037] like Figure 6 As shown, the paper pressing plate 23 includes a plate body 231, an outer protrusion 232 and an inner pressing plate 234. The outer protrusion 232 is rotatably mounted on the frame body 211, and the inner pressing plate 234 is used to press on the fold in the middle of the test paper. This design effectively avoids the problem of paper jam during the scanning process by pressing the test paper, ensures the smooth scanning, and ensures the stability and reliability of the scanning effect.

[0038] The front end of the plate body 231 is provided with a front pressing plate 236, and the rear end of the plate body 231 is provided with a rear pressing plate 233. The front pressing plate 236 and the rear pressing plate 233 are respectively pressed on the front and rear ends of the middle fold of the test paper. The cooperation of the front pressing plate 236 and the rear pressing plate 233 provides uniform pressure, improves the overall paper pressing effect, ensures the stability of the test paper during the entire scanning process, and keeps the test paper flat. A concave platform is also provided on the outer side of the front pressing plate 236 to avoid interference with other components.

[0039] The paper pressing plate 23 is a plastic plate or an acrylic plate, and a groove 235 is provided on the inner pressing plate 234. Figure 6As shown, the groove 235 is located at the inner end of the inner pressure plate 234, and a counterweight (such as a metal block) is installed in the groove 235. The counterweight can increase the pressure on the fold of the test paper to ensure the stability of the test paper during scanning. By arranging the counterweight at the inner end of the inner pressure plate 234, the pressure on the fold of the test paper can be increased, and fixed-point pressure is achieved without excessively increasing the pressure on other positions of the test paper, thereby ensuring smooth paper feeding and avoiding paper jams.

[0040] like Figure 5 , Figure 7 , Figure 8 As shown, the two sides of the frame body 211 have bent plates bent downward, the card plate member 22 has a card plate body 221, and the middle part of the card plate body 221 has two slots 222. The bent plate on the lower side of the frame body 211 is embedded in the groove 235 of the card plate member 22 and connected by screws. The two slots 222 in the middle of the card plate member 22 are designed to be able to fit with the bent plate on the lower side of the frame body 211 and be connected by screws to provide strong fixed support. This structure ensures that during the scanning process, the card plate member 22 can effectively fix the relative positions of each paper support plate to prevent the paper support plate from sliding and retracting due to factors such as vibration. This design improves the stability of the scanning process, ensures that the paper can always remain in the correct position, and reduces paper jams caused by paper movement.

[0041] The top surface of the card plate 22 is also provided with a positioning groove 223, which is perpendicular to the length direction of the fixing frame 21, and the positioning groove 223 cooperates with the convex edge at the bottom of the paper support plate. The design of the positioning groove 223 enables the paper support plate to be aligned more accurately during the assembly process. At the same time, this design also simplifies the assembly process, so that the manufacturing and assembly process can be completed quickly and efficiently, thereby improving production efficiency.

[0042] like Figure 3 As shown, the paper feed tray includes a first paper support plate 31, a second paper support plate 32, a third paper support plate 33 and a fourth paper support plate 34 arranged in sequence from front to back. Figure 7 As shown, the rear end of the card plate member 22 has a first abutting surface 224, the front side of the groove 235 of the card plate member 22 is provided with a second abutting surface 225, and the front end of the card plate member 22 is provided with a third abutting surface 226. Figure 8As shown, the card member 22 is mounted on the second paper support plate 32 through the fixing frame 21, the third abutting surface 226 is clamped at the rear end of the first paper support plate 31, the second abutting surface is clamped at the front end of the third paper support plate 33, and the first abutting surface 224 is clamped at the front end of the fourth paper support plate 34. A stable support system is formed by the cooperation between the card member 22 and the paper support plate, and the positional relationship design of different abutting surfaces also makes the overall structure more stable, preventing the paper support plate from sliding during the paper feeding process, and ensuring the high efficiency and reliability of scanning.

[0043] The screen has been changed from a small one to a large 8-inch one, which improves the human-computer interaction experience and makes it easier to preview scanned files when the scanner is used alone. The scanner can be used alone or uploaded to the cloud in real time after scanning, making human-computer interaction more convenient.

[0044] The use process of the above scanning machine:

[0045] First, by installing the card plate 22 on the bottom side of the paper feed tray 3, the relative positions of the paper support plates are fixed to ensure that the paper support will not be affected by the sliding of the support plates when placing the test paper. During use, the operator rotates the paper pressing plate 23 to both sides to facilitate the placement of the test paper on the paper feed tray 3. Then, the operator rotates the paper pressing plate 23 toward the middle to press it against the test paper to ensure the flatness of the test paper during the scanning process. This operation process is designed to improve the user's operating convenience while ensuring the stability and integrity of the test paper during the scanning process, thereby improving overall work efficiency.

[0046] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. An all-in-one test paper scanning machine, characterized in that: include: A scanner body and a paper feed tray, wherein the paper feed tray is arranged on the upper side of the rear end of the scanner body, and the paper feed tray includes a plurality of slidably connected paper support plates; A paper pressing assembly is installed on the paper feed tray, and the paper pressing assembly includes a fixed frame, a paper pressing board and a card plate. The fixed frame is installed on the paper feed tray, the outer end of the paper pressing board is rotatably connected to the fixed frame, and the inner end is crimped on the middle fold of the test paper. The card plate is installed on the bottom side of the fixed frame to fix multiple paper support plates.

2. The test paper scanning integrated machine as claimed in claim 1, characterized in that: The fixing frame includes a frame body, and the side surfaces at both ends of the frame body have upwardly bent plates, a slot is formed between the bent plate and the frame body, the slot is clamped on the paper feed tray and connected by screws, and the frame body is located on the bottom side of the paper feed tray.

3. The test paper scanning integrated machine as claimed in claim 2, characterized in that: The bent plates at both ends of the frame body are provided with mounting seats, a pin shaft is provided in the middle of the mounting seat, and the outer end of the press paper board is rotatably mounted on the pin shaft of the mounting seat.

4. The test paper scanning integrated machine as claimed in claim 2, characterized in that: The paper pressing plate comprises a plate body, the outer end of the plate body is provided with an outer protrusion, the inner end of the plate body is provided with an inner pressing plate, the outer protrusion is rotatably mounted on the frame body, and the inner pressing plate is used for pressing on the fold in the middle of the test paper.

5. The test paper scanning integrated machine as claimed in claim 4, characterized in that: A front pressing plate is arranged at the front end of the plate body, and a rear pressing plate is arranged at the rear end of the plate body. The front pressing plate and the rear pressing plate are respectively pressed against the edges of the test paper at the front and rear ends of the middle fold, and a concave platform is also arranged on the outer side of the front pressing plate.

6. The test paper scanning integrated machine as claimed in claim 4, characterized in that: The inner pressure plate is provided with a groove, the groove is located at the inner end of the inner pressure plate, and a counterweight is installed in the groove.

7. The test paper scanning integrated machine as claimed in claim 2, characterized in that: The two sides of the frame body are provided with bending plates bending downwards, the middle part of the card plate is provided with two slots, the bending plate on the lower side of the frame body is embedded in the groove of the card plate and connected by screws.

8. The test paper scanning integrated machine as claimed in claim 7, characterized in that: The top surface of the card plate is provided with a positioning groove, the positioning groove is perpendicular to the length direction of the fixing frame, and the positioning groove cooperates with the convex ridge at the bottom of the paper support plate.

9. The test paper scanning integrated machine as claimed in claim 8, characterized in that: The paper feed tray includes a first paper support plate, a second paper support plate, a third paper support plate and a fourth paper support plate arranged in sequence from front to back, the card plate member is installed on the second paper support plate through a fixing frame, the rear end of the card plate member has a first abutting surface, the front side of the groove of the card plate member is provided with a second abutting surface, the front end of the card plate member is provided with a third abutting surface, the third abutting surface is clamped at the rear end of the first paper support plate, the two abutting surfaces are clamped at the front end of the third paper support plate, and the first abutting surface is clamped at the front end of the fourth paper support plate.

10. A working method of the test paper scanning integrated machine according to any one of claims 1 to 9, characterized in that: include: Install the card board on the bottom side of the paper feed tray, and fix the relative positions of each paper support plate; Turn the paper press to both sides to open it, place the test paper on the paper feed tray, turn the paper press to the middle so that it presses against the test paper, and start scanning.

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