Device for intelligently correcting mathematical test paper
By setting up placement boxes and servo motors on both sides of the main body of the marking machine, the automatic replenishment and intermittent feeding of test papers are realized, which solves the problem of low efficiency in marking mathematics test papers in the existing technology and improves work efficiency.
Patent Information
- Application Number
- CN202423173422.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing marking machines are inefficient when grading math exams, requiring multiple manual loading of the paper, resulting in low work efficiency.
A device for intelligently grading math exam papers was designed. By setting up placement boxes on both sides of the main body of the grading machine, and installing a moving push plate and a guide plate inside the placement box, combined with a servo motor and a limiting rack, the device can automatically replenish and intermittently feed exam papers, reducing manual intervention.
It enables automatic replenishment of test papers, improves the efficiency of grading math test papers, reduces manual operation, and enhances the automation level of the equipment.
Smart Images

Figure CN223534484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test paper grading equipment, and in particular to an intelligent test paper grading device. Background Technology
[0002] After a math exam, the papers usually need to be graded. Normally, teachers grade internal school exams, but with multiple exams, the papers are quite large. Therefore, it is common practice to write the math answers on answer sheets and then put them into a grading machine for scanning and grading, which reduces the workload for teachers.
[0003] However, existing exam paper grading machines can only stack a small number of exam papers when loading them. After the exam papers are graded, they need to be repositioned. Therefore, the equipment needs to load exam papers multiple times at set times, resulting in low grading efficiency. To address this issue, we propose an intelligent math exam paper grading device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies mentioned in the background section by proposing an intelligent device for grading math exam papers.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A device for intelligently grading math exam papers includes a main body of the grading machine, mounting frames on both sides of the main body of the grading machine, a placement box at the top of the mounting frames, a paper-exiting opening at the bottom side of the placement box, the paper-exiting opening being adapted to the paper-placing opening of the main body of the grading machine, a movable push plate inside the placement box, a movable rod at the end of the movable push plate, and the movable rod extending through the placement box to the outside.
[0007] The test papers can be placed inside the placement box, and then they can be fed into the test paper entrance of the main body of the marking machine through the exit port for replenishment, eliminating the need for manual addition and improving work efficiency.
[0008] Preferably, a guide plate is provided at the inner end of the placement box, and the side wall of the guide plate is inclined;
[0009] This allows the exam paper to tilt when it moves to the exit position, thus allowing it to slide more smoothly into the exam paper entrance of the main body of the marking machine.
[0010] Preferably, sliding blocks are provided on both sides of the movable push plate, and sliding slots are provided on both sides of the placement box. The sliding blocks extend into the interior of the sliding slots, and the movable push plate is slidably connected to the interior of the placement box.
[0011] This improves the stability of the sliding push plate, preventing it from shaking or detaching, and allowing it to better push the test paper.
[0012] Preferably, a fixed shaft is provided inside the sliding slot, and the sliding block is sleeved on the outside of the fixed shaft;
[0013] This can further improve the stability of the moving push plate, thereby preventing the moving push plate from tilting and making the moving push plate push the test paper more stable.
[0014] Preferably, a support spring is sleeved on the outside of the fixed shaft, one end of the support spring is fixedly connected to the sliding block, and the other end of the support spring is fixedly connected to the inner wall of the sliding slot.
[0015] The support spring can support the sliding block, which in turn drives the moving push plate to better push the test paper, thus moving the test paper to the position of the exit port. Then, it can slide through the exit port to the test paper entrance of the main body of the marking machine.
[0016] Preferably, the side wall of the moving rod is provided with a limiting rack, the side wall of the main body of the paper reading machine is provided with a support plate, the top of the support plate is provided with a servo motor, the output end of the servo motor is provided with a rotating block, and the rotating block is in contact with the side wall of the limiting rack.
[0017] The movable rod can move the movable push plate, and the support spring can cause the movable push plate to squeeze the test paper, so that the test paper will not be continuously fed. When the movable rod causes the movable push plate to loosen, the test paper can be fed intermittently to replenish it.
[0018] Preferably, the side wall of the rotating block is provided with a rotating bar, the rotating bar is inclined, and the rotating bar is adapted to the tooth groove on the limiting rack;
[0019] The servo motor can drive the rotating block to rotate, and the rotating block can drive the rotating bar to rotate, so that the rotating bar is embedded in the inside of the limiting rack. By tilting the rotating bar, the moving rod can be moved back, which in turn causes the moving rod to loosen the moving push plate, thus allowing the test paper to be fed intermittently.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0021] 1. This utility model allows test papers to be placed inside the placement box. Then, the movable push plate, under the action of the support spring, pushes the test paper, causing it to act on the outer wall of the guide plate. Subsequently, the test paper slides through the guide plate and the paper exit to the test paper entrance of the main body of the marking machine, thereby automatically completing the replenishment of test papers without the need for manual replenishment, thus saving manpower and improving work efficiency.
[0022] 2. This utility model allows the movable push plate and guide plate to clamp the test paper, preventing continuous feeding of the test paper. Then, the servo motor drives the rotating block to rotate, and the rotating block drives the rotating bar to contact the limiting rack. The inclined surface of the rotating bar drives the limiting rack and the moving rod to move back, thereby loosening the movable push plate. This allows the test paper to be fed intermittently for replenishment, making it more convenient to use. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of a device for intelligently grading math exam papers proposed in this utility model;
[0024] Figure 2 for Figure 1 A top view of the structure of the box placed in the middle;
[0025] Figure 3 for Figure 2 A top-view cross-sectional structural diagram;
[0026] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.
[0027] In the diagram: 1. Main body of the marking machine; 2. Mounting frame; 3. Placement box; 4. Paper outlet; 5. Guide plate; 6. Moving push plate; 7. Sliding block; 8. Sliding slot; 9. Fixed shaft; 10. Support spring; 11. Moving rod; 12. Limiting rack; 13. Support plate; 14. Servo motor; 15. Rotating block; 16. Rotating bar. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Reference Figure 1-4The device shown is an intelligent math test paper grading device. Mounting frames 2 are installed on both sides of the main body 1 of the grading machine. A placement box 3 is installed at the top of the mounting frames 2, and a paper exit opening 4 is provided at the bottom side of the placement box 3. The paper exit opening 4 is compatible with the paper placement opening of the main body 1 of the grading machine. A movable push plate 6 is installed inside the placement box 3, and a movable rod 11 is installed at the end of the movable push plate 6, extending through the placement box 3 to the outside. A guide plate 5 is installed at the inner end of the placement box 3, and the sidewall of the guide plate 5 is inclined. The movable push plate 6 is inclined and has sliding blocks 7 on both sides. Then, sliding slots 8 are opened on both sides of the placement box 3, so that the sliding blocks 7 extend into the interior of the sliding slots 8. The movable push plate 6 is slidably connected to the interior of the placement box 3, so that a fixed shaft 9 is set inside the sliding slot 8. At the same time, the sliding block 7 is sleeved on the outside of the fixed shaft 9, so that a support spring 10 is sleeved on the outside of the fixed shaft 9. One end of the support spring 10 is fixedly connected to the sliding block 7, and the other end of the support spring 10 is fixedly connected to the inner wall of the sliding slot 8.
[0030] For a detailed description of the limiting rack 12 in this embodiment, please refer to [link / reference]. Figure 3 and Figure 4 A limiting rack 12 is provided on the side wall of the moving rod 11, so that a support plate 13 is provided on the side wall of the main body 1 of the reading machine, and a servo motor 14 is provided at the top of the support plate 13, so that a rotating block 15 is provided at the output end of the servo motor 14, and the rotating block 15 is in contact with the side wall of the limiting rack 12. Then, a rotating bar 16 is provided on the side wall of the rotating block 15, and the rotating bar 16 is inclined, and the rotating bar 16 is adapted to the tooth groove on the limiting rack 12.
[0031] Working principle: When using this utility model, the test paper can be placed inside the placement box 3. Then the support spring 10 drives the sliding block 7 to move, thereby causing the sliding block 7 to drive the moving push plate 6 to move, thereby causing the moving push plate 6 to push the test paper, and thus the moving push plate 6 and the guide plate 5 clamp the test paper.
[0032] Subsequently, the servo motor 14 rotates through the rotating block 15, which in turn drives the rotating bar 16 to rotate. This causes the rotating bar 16 to come into contact with the limiting rack 12, and the inclined surface of the rotating bar 16 causes the limiting rack 12 and the moving rod 11 to move back. This causes the moving rod 11 to loosen the rotating bar 16, allowing the test papers to be fed intermittently and automatically replenished, thus improving work efficiency.
[0033] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0034] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0035] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A device for intelligently grading mathematics exam papers, comprising a main body (1) of a grading machine, characterized in that, The main body (1) of the marking machine is provided with mounting brackets (2) on both sides. The top of the mounting bracket (2) is provided with a placement box (3). The bottom side of the placement box (3) is provided with a paper exit opening (4). The paper exit opening (4) is compatible with the paper placement opening of the main body (1) of the marking machine. The interior of the placement box (3) is provided with a movable push plate (6). The end of the movable push plate (6) is provided with a movable rod (11). The movable rod (11) extends through the placement box (3) to the outside.
2. The intelligent math test paper grading device according to claim 1, characterized in that, The inner end of the placement box (3) is provided with a guide plate (5), and the side wall of the guide plate (5) is inclined.
3. The intelligent math test paper grading device according to claim 1, characterized in that, The movable push plate (6) is provided with sliding blocks (7) on both sides, and the placement box (3) is provided with sliding slots (8) on both sides. The sliding blocks (7) extend into the interior of the sliding slots (8), and the movable push plate (6) is slidably connected to the interior of the placement box (3).
4. The intelligent math test paper grading device according to claim 3, characterized in that, The sliding slot (8) is provided with a fixed shaft (9) inside, and the sliding block (7) is sleeved on the outside of the fixed shaft (9).
5. The intelligent math test paper grading device according to claim 4, characterized in that, A support spring (10) is sleeved on the outside of the fixed shaft (9). One end of the support spring (10) is fixedly connected to the sliding block (7), and the other end of the support spring (10) is fixedly connected to the inner wall of the sliding slot (8).
6. The intelligent math test paper grading device according to claim 1, characterized in that, The moving rod (11) has a limiting rack (12) on its side wall, and the main body (1) of the paper reading machine has a support plate (13) on its side wall. The top of the support plate (13) has a servo motor (14), and the output end of the servo motor (14) has a rotating block (15). The rotating block (15) is in contact with the side wall of the limiting rack (12).
7. The intelligent math test paper grading device according to claim 6, characterized in that, The side wall of the rotating block (15) is provided with a rotating strip (16), which is inclined and is adapted to the tooth groove on the limiting rack (12).