Auxiliary mechanism of examination question card counting instrument

Abstract

The utility model discloses an auxiliary mechanism of an examination question card counter, and relates to the field of education. The auxiliary mechanism comprises a support unit and a placing unit, an auxiliary unit is arranged on one side of the placing unit, the support unit comprises a rack base, a supporting frame and a baffle seat, the supporting frame is arranged at the other end of the rack base, and the baffle seat is installed at the top of the supporting frame. The auxiliary unit comprises a mounting plate, a camera seat, a lamp plate and a lamp tube seat, the camera seat is fixedly connected to the mounting plate and is obliquely arranged, the lamp plate is fixedly connected to the camera seat, and the lamp tube seat is arranged on the back face of the lamp plate. According to the auxiliary mechanism, the lamp is installed in the lamp tube base, and light irradiates from top to bottom, so that the problem that counting cannot be carried out due to the fact that no shadow exists between paper sheets when light is supplemented from bottom to top is solved, and clearer photos can be obtained only when the light irradiates from top to bottom.

Description

Technical Field

[0001] The utility model relates to the technical field of education, in particular to an auxiliary mechanism of an examination question card counter. Background Art

[0002] In most existing exams, answers are generally filled in on answer sheets, which need to be counted after collection. The current method of counting answer sheets after the exam still relies on people counting the number of papers one by one, which will undoubtedly lead to slower efficiency and the possibility of counting errors.

[0003] The current market research on paper counting is still stuck at weighing or manual counting. These methods have some limitations and may cause errors due to external influences. With the development of technology, test paper counters have emerged. They can automatically and evenly spread out the paper and take pictures of the edges of the paper to collect and process the images. They perform grayscale recognition through designed algorithms. The instrument for measuring the number of papers is equipped with a power adapter and battery box, and can be used with both AC and DC power.

[0004] Some existing test paper counters are not equipped with lighting at the image capture location, which results in shadows in the captured photos due to lighting issues during image capture, leading to inaccurate or impossible counting. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an auxiliary mechanism for an examination question card counter, which solves the problem that some examination question card counters are not equipped with lighting at the image photo collection location, which causes shadows in the collected photos due to lighting problems during image photo collection, resulting in inaccurate counting or even failure to count.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an auxiliary mechanism of an examination question card counter includes a bracket unit and a placement unit, the placement unit is mounted on the bracket unit, and an auxiliary unit is provided on one side of the placement unit;

[0007] The bracket unit includes a frame base, a support frame and a baffle seat, wherein the support frame is arranged at the other end of the frame base, and the baffle seat is installed on the top of the support frame;

[0008] The auxiliary unit includes a mounting plate, a camera seat, a lamp plate and a lamp tube seat. The mounting plate is installed at the bottom of the support frame. The camera seat is fixedly connected to the mounting plate, and the camera seat is tilted. The lamp plate is fixedly connected to the camera seat, and the lamp tube seat is set on the back of the lamp plate.

[0009] Preferably, the bracket unit further includes a connecting frame, a frame, a servo seat, a spring fixing piece and a tripod, the connecting frame is provided at one end of the frame base, one end of the frame is plugged into the top of the connecting frame, the servo seat is installed at the other end of the frame, the spring fixing piece is installed at the top of the other end of the frame, and the tripod is used for connecting the frame base and the connecting frame and the supporting frame and the frame base.

[0010] Preferably, the placement unit includes an electric servo, a question card slot and a connecting block, the electric servo is mounted on a servo seat, the top of the question card slot is mounted on the electric servo, and the connecting block is fixedly connected to the side of the question card slot.

[0011] Preferably, the camera seat is provided with a mounting groove, and the camera is installed in the mounting groove.

[0012] Preferably, the lamp plate is provided with a through hole.

[0013] Preferably, the lamp holder is installed with a lamp, and the light of the lamp passes through the through hole and shines towards the question card slot.

[0014] The utility model discloses an auxiliary mechanism of an examination question card counter, which has the following beneficial effects: by installing a camera in a mounting slot, the camera is positioned to align with the hollow portion of the question card slot; when the machine unfolds the paper, the camera can take a picture and send the picture to a program for image processing to obtain the number of papers; by installing a lamp in a lamp holder, the light is shone along the through hole toward the camera position; the light is not parallel to the question card slot when filling in light, and the light is irradiated from top to bottom; since the black line on the edge of the paper when it is unfolded is the shadow of the overlap of the edge and the paper, the problem of no shadow between the papers and the inability to count due to filling in light from bottom to top is avoided, and clearer photos can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the bracket unit of the utility model;

[0018] Figure 3 This is a schematic diagram of the placement unit structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the expansion unit of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the roller assembly of the utility model;

[0021] Figure 6 This is a schematic diagram of the auxiliary unit structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the support unit structure of the utility model.

[0023] In the figure: 1. Bracket unit; 11. Frame base; 12. Connecting frame; 13. Frame; 14. Servo seat; 15. Spring clip fixing member; 16. Support frame; 17. Baffle seat; 171. Clamping seat; 18. Tripod; 2. Placement unit; 21. Electric servo; 22. Question card slot; 23. Connecting block; 3. Deployment unit; 31. First fixing plate; 32. First push rod motor; 33. Clamping head; 34. Second fixing plate; 35. Second push rod motor; 36. Roller assembly; 361. Moving seat; 362. Roller; 363. Bearing; 37. Shrapnel; 4. Auxiliary unit; 41. Mounting plate; 42. Camera seat; 421. Mounting slot; 43. Lamp plate; 431. Through hole; 44. Lamp holder; 5. Support unit; 51. Front curved plate; 52. Front baffle; 53. Rear curved plate; 54. Rear baffle; 55. Connecting seat; 56. Block. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] The embodiment of the utility model discloses an auxiliary mechanism of an examination question card counter.

[0026] According to the attached Figures 1-7 As shown, it includes a bracket unit 1 and a placement unit 2, the placement unit 2 is installed on the bracket unit 1, an expansion unit 3 is provided on one side of the placement unit 2, an auxiliary unit 4 is provided on one side of the expansion unit 3, and a support unit 5 is provided above the placement unit 2.

[0027] Further, the support unit 1 comprises a rack base 11, a connecting rack 12, a rack 13, a rudder base 14, a spring fixing piece 15, a support rack 16, a baffle base 17 and a tripod 18, the connecting rack 12 is arranged at one end of the rack base 11, one end of the rack 13 is inserted into the top end of the connecting rack 12, the rudder base 14 is installed at the other end of the rack 13, the spring fixing piece 15 is installed at the top of the other end of the rack 13, the support rack 16 is arranged at the other end of the rack base 11, the baffle base 17 is installed at the top of the support rack 16, and the tripod 18 is used for connecting the rack base 11 with the connecting rack 12 and the support rack 16 with the rack base 11.

[0028] In particular, the placing unit 2 comprises a motor rudder 21, a test card slot 22 and a connecting block 23, the motor rudder 21 is installed on the rudder base 14, the top of the test card slot 22 is installed on the motor rudder 21, the middle part of the inner side of the test card slot 22 is designed as a hollow, the connecting block 23 is fixedly connected to the side of the test card slot 22, when the test card is put into the test card slot 22, the rotation of the motor rudder 21 can drive the test card slot 22 and the test card in it to rotate, so that the paper is evenly unfolded, and the middle of the side of the test card slot 22 is hollow, when the machine unfolds the paper, the camera will take a picture here for image processing.

[0029] In particular, the unfolding unit 3 comprises a first fixed plate 31, a first push rod motor 32, a chuck 33, a second fixed plate 34, a second push rod motor 35, a roller assembly 36 and a spring 37, the first fixed plate 31 is installed inside the support rack 16, the first push rod motor 32 is installed on the first fixed plate 31, the chuck 33 is fixedly connected to the output end of the first push rod motor 32, the second fixed plate 34 is installed on the connecting block 23 through the tripod 18, the second push rod motor 35 is installed on the second fixed plate 34, and the roller assembly 36 is arranged at the output end of the second push rod motor 35.

[0030] Specifically disclosed, the roller assembly 36 includes a moving seat 361, a roller 362 and a bearing 363. The moving seat 361 is fixedly connected to the output end of the second push rod motor 35. The roller 362 is rotatably connected to the moving seat 361. The roller 362 is against the answer sheet, and the roller 362 is rollingly connected to the answer sheet. By setting the roller 362, the paper can achieve a better unfolding effect in the unfolding degree. The bearings 363 are set on both sides of the moving seat 361, and the two ends of the roller 362 are connected to the bearings 363. When the answer sheet slot is opened, the roller 362 is rotated. After 22 rotates, the second push rod motor 35 drives the moving seat 361 to move toward the answer sheet, and then drives the roller 362 to move toward the answer sheet, so that the roller 362 presses the answer sheet against the answer sheet and slowly unfolds the bottom of the answer sheet. After the unfolding is completed, the first push rod motor 32 drives the clamp 33 to move toward the question card slot 22, so that the clamp 33 presses against the top of the answer sheet and fixes the paper that has been unfolded above. Then the question card slot 22 rotates back to its original position, and the second push rod motor 35 drives the moving seat 361 and the roller 362 to move in the opposite direction.

[0031] It is particularly disclosed that the top of the spring piece 37 is installed on the spring piece fixing part 15. By setting the spring piece 37, the answer sheet is prevented from excessively displacing outside the question card slot 22 when it is unfolded, that is, when the paper is unfolded, it often pops out of the question card slot 22 before the edge of the paper is unfolded. Since the spring piece 37 is fixed and locked, it will not deviate. When the question card slot 22 rotates, the answer sheet and the spring piece 37 will bend. When it rotates back, the roller 362 presses the answer sheet and the spring piece 37, so that the answer sheet and the spring piece 37 are fixed together. The spring piece 37 is fixed and will not move upward, which can ensure that the paper will not deviate significantly outside the question card slot 22.

[0032] It is particularly disclosed that the auxiliary unit 4 includes a mounting plate 41, a camera seat 42, a lamp plate 43 and a lamp tube seat 44. The mounting plate 41 is installed at the bottom of the support frame 16. The camera seat 42 is fixedly connected to the mounting plate 41, and a mounting groove 421 is provided on the camera seat 42. The lamp plate 43 is fixedly connected to the camera seat 42, and a through hole 431 is opened on the lamp plate 43. The lamp tube seat 44 is arranged on the back of the lamp plate 43.

[0033] It should be noted that a camera is installed in the installation slot 421, and the position of the camera is aimed at the hollow part of the question card slot 22. When the machine unfolds the paper, the camera can take a picture and send it to the program for image processing to obtain the number of papers. The lamp is installed in the lamp holder 44, and the light shines along the through hole 431 to the camera position. The function of the light is to make the picture clearer when taking pictures, and the light cannot be parallel to the question card slot 22 when filling in the light. The light needs to be irradiated from top to bottom. Since the black line on the edge of the paper when it is unfolded is the shadow of the overlap of the edge and the paper, the problem of no shadow between the papers and the inability to count is avoided by filling in the light from bottom to top, so that the light must be irradiated from top to bottom to get a clearer photo.

[0034] It's important to note that due to certain physical defects in the answer sheet slot 22, the last sheet of paper cannot be unfolded when measuring larger sheets. Therefore, when the machine takes the final photo, the answer sheet slot 22 is not perpendicular to the ground, but tilted 30 degrees clockwise. This facilitates the unfolding of the last sheet of paper and greatly improves the accuracy of the answer sheet counter. The camera needs to be parallel to the answer sheet slot 22 when taking the photo. The camera is tilted at the same angle as the answer sheet slot 22 to ensure that the camera and the answer sheet are parallel when taking the photo.

[0035] Furthermore, a holder 171 is provided on the spring fixing member 15 and the baffle seat 17, and the clamping block 56 is clamped in the holder 171. Through the snap-fit ​​design, the front baffle 52 and the rear baffle 54 are easy to install and remove, thereby improving the overall flexibility of use.

[0036] Furthermore, the support unit 5 includes a front curved plate 51, a front baffle 52, a rear curved plate 53, a rear baffle 54, a connecting seat 55 and a clamping block 56. The front curved plate 51 is connected to the front baffle 52 through the connecting seat 55, and the rear curved plate 53 is connected to the rear baffle 54 through the connecting seat 55. The connecting seat 55 is set on the side of the front baffle 52 and the rear baffle 54, and the clamping block 56 is set at the bottom of the front baffle 52 and the rear baffle 54. By setting the support unit 5, when unfolding large paper such as A3 paper, only the front baffle 52 and the rear baffle need to be connected. The card block 56 at the bottom end of the plate 54 is respectively connected to the spring fixing part 15 and the card seat 171 of the baffle seat 17, so that the large paper can be supported first, and then the paper can be better unfolded. By connecting the top of the front baffle 52 and the rear baffle 54 to the front curved plate 51 and the rear curved plate 53 respectively, the opening of the support baffle is made funnel-shaped, so that large paper such as A3 paper can quickly enter the question card slot 22 after being arranged, which is convenient for automatic unfolding of the paper, thereby improving the unfolding efficiency and unfolding quality of large paper such as A3 paper.

[0037] Working principle: First, put the answer sheet into the question card slot 22, start the electric servo 21, drive the question card slot 22 to rotate, and then drive the answer sheet to rotate. At this time, the answer sheet and the spring 37 will bend. Then the second push rod motor 35 drives the moving seat 361 to move toward the answer sheet, and then drives the roller 362 to move toward the answer sheet, so that the roller 362 will press the answer sheet against the answer sheet, so that the question card slot 22 rotates back to its original position. During the returning process, the roller 362 presses the answer sheet and the spring 37, so that the answer sheet and the spring 37 are fixed. Together, and the spring piece 37 is fixed and will not move upward, which can ensure that the paper will not deviate significantly outside the question card slot 22, and the bottom of the answer sheet will slowly unfold. After the unfolding is completed, the first push rod motor 32 drives the clamp 33 to move toward the question card slot 22, so that the clamp 33 is fixed against the top of the answer sheet, so that the paper that has been unfolded above is fixed, and then the second push rod motor 35 drives the moving seat 361 and the roller 362 to move in the opposite direction, so that the second push rod returns to its position, and the above unfolding action is repeated.

[0038] When large paper sheets need to be counted, the clamping blocks 56 at the bottom ends of the front baffle 52 and the rear baffle 54 are respectively clamped in the spring fixing member 15 and the clamping seat 171 of the baffle seat 17, so that the large paper sheets can be supported first, and then the subsequent paper sheets can be unfolded.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary mechanism for an examination question card counter, comprising a bracket unit (1) and a placement unit (2), wherein the placement unit (2) is mounted on the bracket unit (1), and is characterized in that: An auxiliary unit (4) is provided on one side of the placement unit (2); The bracket unit (1) comprises a frame base (11), a support frame (16) and a baffle seat (17), wherein the support frame (16) is arranged at the other end of the frame base (11), and the baffle seat (17) is installed on the top of the support frame (16); The auxiliary unit (4) includes a mounting plate (41), a camera seat (42), a lamp plate (43) and a lamp holder (44); the mounting plate (41) is mounted on the bottom of the support frame (16); the camera seat (42) is fixedly connected to the mounting plate (41), and the camera seat (42) is tilted; the lamp plate (43) is fixedly connected to the camera seat (42); and the lamp holder (44) is arranged on the back of the lamp plate (43).

2. The auxiliary mechanism of the examination question card counter according to claim 1, characterized in that: The bracket unit (1) further comprises a connecting frame (12), a frame (13), a steering gear seat (14), a spring clip fixing member (15) and a tripod (18), wherein the connecting frame (12) is provided at one end of the frame base (11), one end of the frame (13) is plugged into the top of the connecting frame (12), the steering gear seat (14) is mounted at the other end of the frame (13), the spring clip fixing member (15) is mounted at the top of the other end of the frame (13), and the tripod (18) is used for connecting the frame base (11) and the connecting frame (12) and the supporting frame (16) and the frame base (11).

3. The auxiliary mechanism of the examination question card counter according to claim 1, characterized in that: The placement unit (2) comprises an electric servo (21), a question card slot (22) and a connecting block (23); the electric servo (21) is mounted on the servo seat (14); the top of the question card slot (22) is mounted on the electric servo (21); and the connecting block (23) is fixedly connected to the side of the question card slot (22).

4. The auxiliary mechanism of the examination question card counter according to claim 1, characterized in that: The camera seat (42) is provided with a mounting groove (421), and a camera is mounted in the mounting groove (421).

5. The auxiliary mechanism of the examination question card counter according to claim 1, characterized in that: The lamp plate (43) is provided with a through hole (431).

6. The auxiliary mechanism of the examination question card counter according to claim 5, characterized in that: The lamp holder (44) is equipped with a lamp, and light from the lamp passes through the through hole (431) and shines toward the question card slot (22).

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