A method for converting teaching auxiliary test papers

Abstract

The present invention discloses a teaching auxiliary test paper conversion method, including a bottom plate, characterized in that: Step 1: Place the test paper on the second track groove. The controller operates the third electric push rod to drive the push plate to move the test paper so that it contacts the baffle. The controller operates the fourth electric push rod to make the test paper contact the right circular plate. According to the height of the test paper, the controller operates the second electric push rod to make the first track groove slightly lower than the lower side of the uppermost test paper on the second track groove. The controller controls the first electric push rod to make the distance between the high-speed camera and the first track groove appropriate. The present invention relates to the field of information extraction devices. Specifically speaking, it relates to a teaching auxiliary test paper conversion method. The technical problem to be solved by the present invention is to provide a teaching auxiliary test paper conversion method to facilitate test paper processing.

Description

Technical Field

[0001] The present invention relates to the field of information extraction devices, and more specifically, to a method for converting teaching auxiliary test papers. Background Art

[0002] When teachers conduct homework review, they often need to modify and edit the test questions on test papers or books into new test questions, and then project them onto an electronic whiteboard for students to practice by analogy. For multiple test papers, manual editing takes a lot of time for teachers in terms of editing and typesetting.

[0003] By using a high-speed document scanner, each test question on the test paper is automatically converted into one page of a PPT, forming a PPT file that can be used for teaching. The content in the PPT supports the teacher's secondary editing function. Currently, teachers need to place each test paper under the high-speed document scanner for shooting one by one. Especially when there are a large number of test papers, it consumes a lot of manpower and has a relatively low efficiency. This is the deficiency of the existing technology. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for converting teaching auxiliary test papers to facilitate test paper processing.

[0005] The present invention adopts the following technical solutions to achieve the invention purpose:

[0006] A method for converting teaching auxiliary test papers, characterized by including the following steps: Step 1: Place the test paper on the second track groove. The controller operates the third electric push rod to drive the push plate to move the test paper until it contacts the baffle. The controller operates the fourth electric push rod to make the test paper contact the right circular plate. According to the height of the test paper, the controller operates the second electric push rod to make the first track groove slightly lower than the lower side of the uppermost test paper on the second track groove. The controller controls the first electric push rod to make the distance between the high-speed document scanner and the first track groove appropriate;

[0007] Step 2: The controller controls the second motor to rotate. The second motor drives the cylinder to rotate, causing the ball to move along the circular ring groove. The ball drives the connecting rod to swing, and the connecting rod drives the round shaft and the gear to rotate. The gear drives the rack to move, and the rack drives the vertical rod to move. The vertical rod drives the spring and the circular plate to move. The vertical rod drives the straight groove rod to swing under the limiting action of the round rod, causing the straight groove rod to drive the second square rod, the first motor, and the wheel to swing, making the right circular plate move away from the test paper. The right wheel contacts the test paper. The controller turns off the second motor;

[0008] Step 3: The controller turns on the first motor on the right side. The right wheel rotates to drive the test paper to move onto the first track groove. After the right wheel disengages from the test paper, the controller turns off the first motor;

[0009] Step 4: The controller controls the second motor to rotate, causing the left wheel to contact the test paper on the first track groove. The controller turns off the second motor;

[0010] Step Five: The controller turns on the left motor 1. The left wheel rotates to drive the test paper to move under the overhead projector, and the right wheel disengages from the test paper. The controller turns off the motor 1.

[0011] Step Six: The controller controls the overhead projector to take a photo of one side of the test paper and automatically convert the questions into a PPT file. The controller controls the electric push rod 1 to extend so that the overhead projector rises to the same height as the thickness of the test paper.

[0012] Step Seven: The controller controls the electric push rod 4 to make the next test paper contact the right circular plate. The controller operates the electric push rod 2 to make the topmost test paper in the track groove 1 slightly lower than the lower side of the topmost test paper in the track groove 2. Repeat Steps 2 to 6 to complete the processing of one side of the next test paper.

[0013] Step Eight: Repeat Step Seven to complete the processing of one side of all test papers.

[0014] Step Nine: Take out the left test paper, flip the left test paper, and execute Steps 1 to 8 to complete the processing of both sides of all test papers.

[0015] As a further limitation of this technical solution, the symmetric electric push rods 2 are respectively fixedly connected to the bottom plate. The push rod ends of the symmetric electric push rods 2 are respectively fixedly connected to the track groove 1. The track groove 1 is fixedly connected to the baffle. The bottom plate is fixedly connected to the symmetric electric push rods 1. The push rod ends of the symmetric electric push rods 1 are respectively fixedly connected to the overhead projector. The bottom plate is fixedly connected to the symmetric electric push rods 4. The push rod ends of the symmetric electric push rods 4 are respectively fixedly connected to the track groove 2. The track groove 2 is fixedly connected to the fixed block. The fixed block is fixedly connected to the symmetric electric push rods 3. The push rod ends of the symmetric electric push rods 3 are respectively fixedly connected to the push plate.

[0016] As a further limitation of this technical solution, the push plate matches the track groove 2.

[0017] As a further limitation of this technical solution, the track groove 2 contacts the baffle.

[0018] As a further limitation of the present technical solution, the bottom plate is fixedly connected to the bracket, the bracket is fixedly connected to symmetric chutes, the symmetric chutes are respectively fixedly connected to square plates, the bracket is fixedly connected to symmetric guide blocks, the symmetric guide blocks are respectively fixedly connected to square rods I, both ends of the symmetric square rods I are respectively fixedly connected to corresponding round rods, the square plates are fixedly connected to the second motor, the output shaft of the second motor passes through the square plate, the output shaft of the second motor is fixedly connected to the cylinder, the cylinder is provided with the ring groove, symmetric balls are arranged in the ring groove, the symmetric balls are respectively fixedly connected to corresponding connecting rods, the symmetric connecting rods are respectively fixedly connected to corresponding round shafts, the symmetric round shafts are respectively connected to corresponding chutes by bearings, the symmetric round shafts are respectively fixedly connected to corresponding gears, the symmetric gears are respectively arranged in corresponding chutes, the symmetric gears are respectively meshed with corresponding racks, the symmetric racks are respectively fixedly connected to corresponding vertical rods, the symmetric vertical rods are respectively arranged in corresponding guide blocks, one ends of the symmetric vertical rods are respectively fixedly connected to corresponding springs, the other ends of the symmetric springs are respectively fixedly connected to corresponding round plates, the symmetric vertical rods are respectively rotatably connected to symmetric straight groove rods, corresponding round rods are respectively arranged in the straight grooves of each straight groove rod, each straight groove rod is respectively fixedly connected to corresponding square rod II, each square rod II is respectively fixedly connected to corresponding first motor, the symmetric first motors are respectively fixedly connected to corresponding wheels.

[0019] As a further limitation of the present technical solution, the surface material of the wheel is rubber.

[0020] As a further limitation of the present technical solution, the surface material of the round plate is rubber.

[0021] As a further limitation of the present technical solution, the bracket is arranged at the middle position of the bottom plate.

[0022] As a further limitation of the present technical solution, the bracket is made of aluminum alloy material to reduce the weight.

[0023] As a further limitation of the present technical solution, the document camera, the first electric push rod, the second electric push rod, the third electric push rod, the fourth electric push rod, the first motor and the second motor are respectively electrically connected to the controller.

[0024] Compared with the prior art, the advantages and positive effects of the present invention are:

[0025] By using the controller, the present device controls the second electric push rod and the third electric push rod to realize the height position movement of the test papers on both sides, realize the movement of the test papers, make the uppermost test paper in the first track groove slightly lower than the lower side of the uppermost test paper in the second track groove, facilitate the movement of the test papers, and realize the processing of the test papers by the document camera.

[0026] By setting the second motor, the device enables the two side wheels to alternately contact the test paper under the drive of relevant components and the limiting effect of the circular ring groove and the round rod. By rotating the first motor, the wheels drive the test paper to move. The right wheel moves the test paper from one side of the second track groove to one side of the first track groove, and the left wheel moves the test paper under the high-speed camera, facilitating the high-speed camera to process the test paper.

[0027] Through ingenious design, the device can process the test questions, especially suitable for batch processing of test papers. It replaces the teacher to manually move the test papers, saving manpower, improving work efficiency, and enhancing the processing quality of test papers. Brief Description of the Drawings

[0028] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 。

[0029] Figure 2 is a schematic partial three-dimensional structure of the present invention Figure 1 。

[0030] Figure 3 is a schematic partial three-dimensional structure of the present invention Figure 2 。

[0031] Figure 4 is a schematic partial three-dimensional structure of the present invention Figure 3 。

[0032] Figure 5 is a schematic partial three-dimensional structure of the present invention Figure 4 。

[0033] Figure 6 is a schematic partial three-dimensional structure of the present invention Figure 5 。

[0034] Figure 7 is a schematic three-dimensional structure of the present invention Figure 2 。

[0035] In the figure: 1. High-speed camera, 2. First track groove, 3. First electric push rod, 4. Second electric push rod, 5. Bottom plate, 6. Baffle, 7. Second track groove, 8. Push plate, 9. Third electric push rod, 10. Fixed block, 11. Fourth electric push rod, 12. Bracket, 13. Chute, 14. Square plate, 15. Guide block, 16. First square rod, 18. Round rod, 19. Cylinder, 20. Circular ring groove, 21. Vertical rod, 22. Rack, 23. Gear, 24. Round shaft, 25. Connecting rod, 26. Sphere, 27. Round plate, 28. Spring, 29. Wheel, 30. First motor, 31. Second square rod, 32. Straight groove rod, 33. Second motor. Detailed Embodiments

[0036] The following will describe in detail a specific embodiment of the present invention in conjunction with the accompanying drawings. However, it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0037] As Figures 1 - 7 shown, the present invention includes the following steps. Step 1: Place the test paper on the second track groove 7. The controller operates the third electric push rod 9 to drive the push plate 8 to move the test paper until it contacts the baffle 6. The controller operates the fourth electric push rod 11 to make the test paper contact the right circular plate 27. According to the height of the test paper, the controller operates the second electric push rod 4 to make the first track groove 2 slightly lower than the lower side of the uppermost test paper on the second track groove 7. The controller controls the first electric push rod 3 to make the distance between the high-speed camera 1 and the first track groove 2 appropriate.

[0038] Step 2: The controller controls the second motor 33 to rotate. The second motor 33 drives the cylinder 19 to rotate, causing the ball 26 to move along the circular ring groove 20. The ball 26 drives the connecting rod 25 to swing. The connecting rod 25 drives the circular shaft 24 and the gear 23 to rotate. The gear 23 drives the rack 22 to move. The rack 22 drives the vertical rod 21 to move. The vertical rod 21 drives the spring 28 and the circular plate 27 to move. The vertical rod 21 drives the straight groove rod 32 to swing under the limiting action of the circular rod 18, causing the straight groove rod 32 to drive the second square rod 31, the first motor 30 and the wheel 29 to swing, so that the right circular plate 27 moves away from the test paper and the right wheel 29 contacts the test paper. The controller turns off the second motor 33.

[0039] Step 3: The controller turns on the right first motor 30. The right wheel 29 rotates to drive the test paper to move onto the first track groove 2. After the right wheel 29 disengages from the test paper, the controller turns off the first motor 30.

[0040] Step 4: The controller controls the second motor 33 to rotate so that the left wheel 29 contacts the test paper on the first track groove 2. The controller turns off the second motor 33.

[0041] Step 5: The controller turns on the left first motor 30. The left wheel 29 rotates to drive the test paper to move under the high-speed camera 1. The right wheel 29 disengages from the test paper. The controller turns off the first motor 30.

[0042] Step 6: The controller controls the high-speed camera 1 to take a picture of the front side of the test paper and automatically convert the questions into a PPT file. The controller controls the first electric push rod 3 to extend so that the height of the high-speed camera 1 is the same as the thickness of the test paper.

[0043] Step 7: The controller controls the fourth electric push rod 11 to make the next test paper contact the right circular plate 27. The controller operates the second electric push rod 4 to make the uppermost test paper on the first track groove 2 slightly lower than the lower side of the uppermost test paper on the second track groove 7. Repeat steps 2 to 6 to complete the processing of one side of the next test paper.

[0044] Step Eight: Repeat Step Seven to complete the processing of one side of all test papers;

[0045] Step Nine: Take out the left test papers, turn over the left test papers, and execute Steps One to Eight to complete the processing of both sides of all test papers.

[0046] The symmetrically arranged electric push rods II 4 are respectively fixedly connected to the bottom plate 5. The push rod ends of the symmetrically arranged electric push rods II 4 are respectively fixedly connected to the first track groove 2. The first track groove 2 is fixedly connected to the baffle 6. The bottom plate 5 is fixedly connected to the symmetrically arranged electric push rods I 3. The push rod ends of the symmetrically arranged electric push rods I 3 are respectively fixedly connected to the overhead projector 1. The bottom plate 5 is fixedly connected to the symmetrically arranged electric push rods IV 11. The push rod ends of the symmetrically arranged electric push rods IV 11 are respectively fixedly connected to the second track groove 7. The second track groove 7 is fixedly connected to the fixing block 10. The fixing block 10 is fixedly connected to the symmetrically arranged electric push rods III 9. The push rod ends of the symmetrically arranged electric push rods III 9 are respectively fixedly connected to the push plate 8.

[0047] The push plate 8 matches the second track groove 7.

[0048] The second track groove 7 contacts the baffle 6.

[0049] The bottom plate 5 is fixedly connected to the bracket 12. The bracket 12 is fixedly connected to symmetric sliding grooves 13. The symmetric sliding grooves 13 are respectively fixedly connected to square plates 14. The bracket 12 is fixedly connected to symmetric guiding blocks 15. The symmetric guiding blocks 15 are respectively fixedly connected to square rods one 16. The two ends of the symmetric square rods one 16 are respectively fixedly connected to the corresponding round rods 18. The square plate 14 is fixedly connected to the motor two 33. The output shaft of the motor two 33 passes through the square plate 14. The output shaft of the motor two 33 is fixedly connected to the cylinder 19. The cylinder 19 is provided with the circular ring groove 20. Symmetric balls 26 are arranged in the circular ring groove 20. The symmetric balls 26 are respectively fixedly connected to the corresponding connecting rods 25. The symmetric connecting rods 25 are respectively fixedly connected to the corresponding round shafts 24. The symmetric round shafts 24 are respectively connected to the corresponding sliding grooves 13 by bearings. The symmetric round shafts 24 are respectively fixedly connected to the corresponding gears 23. The symmetric gears 23 are respectively arranged in the corresponding sliding grooves 13. The symmetric gears 23 are respectively meshed with the corresponding racks 22. The symmetric racks 22 are respectively fixedly connected to the corresponding vertical rods 21. The symmetric vertical rods 21 are respectively arranged in the corresponding guiding blocks 15. The symmetric vertical rods 21 are respectively fixedly connected to one end of the corresponding springs 28. The other ends of the symmetric springs 28 are respectively fixedly connected to the corresponding round plates 27. The symmetric vertical rods 21 are respectively rotatably connected to the symmetric straight groove rods 32. Each straight groove of each straight groove rod 32 is respectively provided with the corresponding round rod 18. Each straight groove rod 32 is respectively fixedly connected to the corresponding square rod two 31. Each square rod two 31 is respectively fixedly connected to the corresponding motor one 30. The symmetric motors one 30 are respectively fixedly connected to the corresponding wheels 29.

[0050] The surface material of the wheel 29 is rubber.

[0051] The surface material of the round plate 27 is rubber.

[0052] The bracket 12 is arranged at the middle position of the bottom plate 5.

[0053] The bracket 12 is made of aluminum alloy material to reduce the weight.

[0054] The overhead projector 1, the electric push rod one 3, the electric push rod two 4, the electric push rod three 9, the electric push rod four 11, the motor one 30 and the motor two 33 are respectively electrically connected to the controller.

[0055] The document camera 1 takes pictures of test papers or assignments and converts them into teaching PPTs. The processing of assignments requires image enhancement optimization, question recognition, question coordinate positioning, question clipping, and parsing to create PPTs. It has the following functions: Image enhancement and optimization: mainly performs image processing capabilities such as skew correction, automatic black edge removal, and binary enhancement on the images transmitted by the terminal device; Question recognition: performs OCR text recognition on the pictures to identify the text content and the size of the text blocks of the questions. Filters interference for smaller text blocks, merges continuous text blocks, and can recognize formulas; Question positioning: locates the coordinates of the question text blocks based on the information obtained from question recognition. Obtains the starting coordinate points and the width and height occupied by each question; Question clipping: converts the geometric graphics and text content of each question into SVG and Text text formats based on the positioning coordinates of the questions; Parsing and creating PPT: creates a page of PPT based on the ooxml standard specification from the graphics, text, and formulas after question clipping, and finally generates a PPT file.

[0056] The working process of the present invention is as follows: debug the controller so that the controller controls the document camera 1, the first electric push rod 3, the second electric push rod 4, the third electric push rod 9, the fourth electric push rod 11, the first motor 30, and the second motor 33 according to the number and size of the test papers.

[0057] Place the test paper on the second track groove 7. The controller operates the third electric push rod 9, and the third electric push rod 9 drives the push plate 8 to move. The push plate 8 drives the test paper to move until it contacts the baffle 6. The controller operates the fourth electric push rod 11 to make the test paper contact the right circular plate 27. According to the height of the test paper, the controller operates the second electric push rod 4 to make the first track groove 2 slightly lower than the lower side of the uppermost test paper on the second track groove 7. The controller controls the first electric push rod 3 to make the distance between the document camera 1 and the first track groove 2 appropriate.

[0058] The controller controls the second motor 33 to rotate. The second motor 33 drives the cylinder 19 to rotate, causing the spherical ball 26 to move along the circular ring groove 20. The spherical ball 26 drives the connecting rod 25 to swing. The connecting rod 25 drives the round shaft 24 and the gear 23 to rotate. The gear 23 drives the rack 22 to move. The rack 22 drives the vertical rod 21 to move. The vertical rod 21 drives the spring 28 and the circular plate 27 to move. The vertical rod 21 drives the straight groove rod 32 to swing under the limiting action of the round rod 18, causing the straight groove rod 32 to drive the second square rod 31, the first motor 30, and the wheel 29 to swing, so that the right circular plate 27 moves away from the test paper, and the right wheel 29 contacts the test paper. The controller turns off the second motor 33.

[0059] The controller turns on the right first motor 30. The right wheel 29 rotates to drive the test paper to move onto the first track groove 2. After the right wheel 29 disengages from the test paper, the controller turns off the first motor 30.

[0060] The controller controls the rotation of the second motor 33 to make the left wheel 29 contact the test paper on the first track groove 2, and then the controller turns off the second motor 33.

[0061] The controller turns on the left first motor 30, and the rotation of the left wheel 29 drives the test paper to move under the overhead projector 1. The right wheel 29 disengages from the test paper, and then the controller turns off the first motor 30.

[0062] The controller controls the overhead projector 1 to take a photo of one side of the test paper and automatically convert the questions into a PPT file. The controller controls the first electric push rod 3 to extend, so that the overhead projector 1 rises to the same height as the thickness of the test paper.

[0063] The controller controls the fourth electric push rod 11 to make the next test paper contact the right circular plate 27. The controller operates the second electric push rod 4 to make the uppermost test paper in the first track groove 2 slightly lower than the lower side of the uppermost test paper in the second track groove 7.

[0064] The controller controls the movement of the first motor 30 and the second motor 33 to move the next test paper above the test paper on the first track groove 2, and the controller controls the overhead projector 1 to process it.

[0065] Repeat the above steps to process one side of all test papers.

[0066] Take out the left test paper, flip the left test paper, and repeat the above steps to complete the processing of both sides of all test papers.

[0067] By using the controller to control the second electric push rod 4 and the fourth electric push rod 11, this device realizes the movement of the height positions of the test papers on both sides, realizes the movement of the test papers, makes the uppermost test paper in the first track groove 2 slightly lower than the lower side of the uppermost test paper in the second track groove 7, facilitates the movement of the test papers, and realizes the processing of the test papers by the overhead projector 1.

[0068] By setting the second motor 33, under the drive of related components and the limiting effect of the circular ring groove 20 and the round rod 18, this device realizes the alternating contact of the two wheels 29 with the test paper. By the rotation of the first motor 30, it realizes the movement of the test paper driven by the wheel 29. The right wheel 29 realizes the movement of the test paper from one side of the second track groove 7 to one side of the first track groove 2, and the left wheel 29 realizes the movement of the test paper under the overhead projector 1, which facilitates the processing of the test paper by the overhead projector 1.

[0069] Through ingenious design, this device realizes the processing of the test paper questions, and is especially suitable for batch processing of test papers. It replaces the teacher to manually move the test papers, saves manpower, improves work efficiency, and improves the processing quality of the test papers.

[0070] The above-disclosed are only specific embodiments of the present invention. However, the present invention is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A teaching auxiliary test paper conversion method, which is applied to a teaching auxiliary test paper conversion device, and the device comprises: Symmetrical electric push rods II (4) are respectively fixedly connected to the bottom plate (5). The push rod ends of the symmetrical electric push rods II (4) are respectively fixedly connected to the first track groove (2). The first track groove (2) is fixedly connected to the baffle (6). The bottom plate (5) is fixedly connected to symmetrical electric push rods I (3). The push rod ends of the symmetrical electric push rods I (3) are respectively fixedly connected to the overhead projector (1). The bottom plate (5) is fixedly connected to symmetrical electric push rods IV (11). The push rod ends of the symmetrical electric push rods IV (11) are respectively fixedly connected to the second track groove (7). The second track groove (7) is fixedly connected to the fixing block (10). The fixing block (10) is fixedly connected to symmetrical electric push rods III (9). The push rod ends of the symmetrical electric push rods III (9) are respectively fixedly connected to the push plate (8); The push plate (8) matches the second track groove (7); The second track groove (7) contacts the baffle (6); The bottom plate (5) is fixedly connected to the bracket (12), the bracket (12) is fixedly connected to symmetric sliding grooves (13), the symmetric sliding grooves (13) are respectively fixedly connected to square plates (14), the bracket (12) is fixedly connected to symmetric guide blocks (15), the symmetric guide blocks (15) are respectively fixedly connected to square rods I (16), both ends of the symmetric square rods I (16) are respectively fixedly connected to corresponding round rods (18), the square plate (14) is fixedly connected to the motor II (33), the output shaft of the motor II (33) passes through the square plate (14), the output shaft of the motor II (33) is fixedly connected to a cylinder (19), the cylinder (19) is provided with an annular groove (20), symmetric spheres (26) are arranged in the annular groove (20), the symmetric spheres (26) are respectively fixedly connected to corresponding connecting rods (25), the symmetric connecting rods (25) are respectively fixedly connected to corresponding round shafts (24), the symmetric round shafts (24) are respectively connected to the corresponding sliding grooves (13) by bearings, the symmetric round shafts (24) are respectively fixedly connected to corresponding gears (23), the symmetric gears (23) are respectively arranged in the corresponding sliding grooves (13), the symmetric gears (23) are respectively meshed with corresponding racks (22), the symmetric racks (22) are respectively fixedly connected to corresponding vertical rods (21), the symmetric vertical rods (21) are respectively arranged in the corresponding guide blocks (15), one ends of the symmetric vertical rods (21) are respectively fixedly connected to one ends of corresponding springs (28), the other ends of the symmetric springs (28) are respectively fixedly connected to corresponding round plates (27), the symmetric vertical rods (21) are respectively rotatably connected to symmetric straight groove rods (32), corresponding round rods (18) are respectively arranged in the straight grooves of each straight groove rod (32), each straight groove rod (32) is respectively fixedly connected to a corresponding square rod II (31), each square rod II (31) is respectively fixedly connected to a corresponding motor I (30), the symmetric motors I (30) are respectively fixedly connected to corresponding wheels (29); It is characterized in that: the method comprises the following steps: Step 1: Place the test paper on the track groove II (7), the controller operates the electric push rod III (9) to drive the push plate (8) to move the test paper until it contacts the baffle (6), the controller operates the electric push rod IV (11) to make the test paper contact the right round plate (27), according to the height of the test paper, the controller operates the electric push rod II (4) to make the track groove I (2) slightly lower than the lower side of the uppermost test paper on the track groove II (7), and the controller controls the electric push rod I (3) to make the distance between the high-speed camera (1) and the track groove I (2) appropriate; Step 2: The controller controls the rotation of the second motor (33). The second motor (33) drives the rotation of the cylinder (19), causing the spherical ball (26) to move along the circular ring groove (20). The spherical ball (26) drives the swing of the connecting rod (25). The connecting rod (25) drives the rotation of the circular shaft (24) and the gear (23). The gear (23) drives the movement of the rack (22). The rack (22) drives the movement of the vertical rod (21). The vertical rod (21) drives the movement of the spring (28) and the circular plate (27). The vertical rod (21) drives the swing of the straight groove rod (32) under the limiting action of the circular rod (18), causing the straight groove rod (32) to drive the second square rod (31), the first motor (30) and the wheel (29) to swing, so that the right circular plate (27) moves away from the test paper, and the right wheel (29) contacts the test paper. The controller turns off the second motor (33); Step 3: The controller turns on the right first motor (30). The right wheel (29) rotates to drive the test paper to move onto the first track groove (2). After the right wheel (29) disengages from the test paper, the controller turns off the first motor (30); Step 4: The controller controls the rotation of the second motor (33) so that the left wheel (29) contacts the test paper on the first track groove (2). The controller turns off the second motor (33); Step 5: The controller turns on the left first motor (30). The left wheel (29) rotates to drive the test paper to move under the high-speed camera (1). The right wheel (29) disengages from the test paper. The controller turns off the first motor (30); Step 6: The controller controls the high-speed camera (1) to take a photo of the front side of the test paper and automatically convert the questions into a PPT file. The controller controls the first electric push rod (3) to extend, so that the high-speed camera (1) rises to the same height as the thickness of the test paper; Step 7: The controller controls the fourth electric push rod (11) to make the next test paper contact the right circular plate (27). The controller operates the second electric push rod (4) to make the topmost test paper on the first track groove (2) slightly lower than the lower side of the topmost test paper on the second track groove (7). Repeat Steps 2 to 6 to complete the processing of one side of the next test paper; Step 8: Repeat Step 7 to complete the processing of one side of all test papers; Step 9: Take out the left test paper, flip the left test paper, and execute Steps 1 to 8 to complete the processing of both sides of all test papers.

2. The teaching auxiliary test paper conversion method according to claim 1, characterized in that: the surface material of the wheel (29) is rubber.

3. The teaching auxiliary test paper conversion method according to claim 1, characterized in that: the surface material of the circular plate (27) is rubber.

4. The teaching auxiliary test paper conversion method according to claim 1, characterized in that: the bracket (12) is arranged at the middle position of the bottom plate (5).

5. The teaching auxiliary test paper conversion method according to claim 1, characterized in that: the bracket (12) is made of aluminum alloy material to reduce the weight.

6. The teaching auxiliary test paper conversion method according to claim 1, characterized in that: The overhead projector (1), the first electric push rod (3), the second electric push rod (4), the third electric push rod (9), the fourth electric push rod (11), the first motor (30) and the second motor (33) are respectively electrically connected to a controller.

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