Unfolding mechanism of examination question card counting instrument
By designing the unfolding mechanism of the test question card counter, using a motor to drive the rollers and clamps to automatically unfold the answer sheets, and combining it with camera counting, the problem of low efficiency of manual counting is solved, and efficient and accurate answer sheet counting is achieved.
Patent Information
- Application Number
- CN202423062654.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In existing examinations, answer sheet counting is inefficient and labor-intensive, relying primarily on manual counting, which leads to low efficiency and an increased likelihood of miscounting.
An unfolding mechanism for an examination answer sheet counter is designed, which includes a bracket unit, a placement unit and an unfolding unit. A motor drives the rollers and the clamp to automatically unfold and fix the answer sheets, and a camera is used for image processing to count the answer sheets.
It realizes automatic counting, reduces labor intensity, improves counting efficiency, and reduces errors caused by manual counting.
Smart Images
Figure CN223422053U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to educational technology field, concretely is a kind of examination card counting instrument's unfolding mechanism. BACKGROUND
[0002] In most of the existing examination, generally, the answer is filled in the answer sheet, and the answer sheet needs to be counted after collection. The current method for counting the answer sheet after the examination still relies on people counting the number of papers one by one, which undoubtedly leads to slow efficiency and the possibility of counting error.
[0003] The research on paper counting in the current market still stops at weighing or manual counting. Manual counting usually requires both hands. The first hand bends the paper and then pinches it tightly, and then folds the paper back,
[0004] The unfolded part is fixed with the second hand. Manual counting not only has high labor intensity, but also has low counting efficiency. UTILITY MODEL CONTENT
[0005] In view of the deficiencies of the prior art, the utility model provides an unfolding mechanism of an examination card counter, which solves the problems of high labor intensity and low counting efficiency of manual counting.
[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: an unfolding mechanism of an examination card counter includes a support unit and a placement unit, the placement unit is installed on the support unit, and the placement unit is provided with an unfolding unit on one side;
[0007] The support unit includes a rack base, a support frame and a baffle seat, the support frame is arranged at the other end of the rack base, and the baffle seat is installed at the top of the support frame.
[0008] The unfolding unit includes a first fixed plate, a first push rod motor, a chuck, a second fixed plate and a second push rod motor, the first fixed plate is installed inside the support frame, the first push rod motor is installed on the first fixed plate, the chuck is fixedly connected to the output end of the first push rod motor, the second fixed plate is arranged on one side of the placement unit, the second push rod motor is installed on the second fixed plate, and the roller assembly is arranged at the output end of the second push rod motor.
[0009] Preferably, the support unit further includes a connecting frame, a rack, a rudder seat, a spring fixing piece and a tripod, the connecting frame is arranged at one end of the rack base, one end of the rack is inserted into the top end of the connecting frame, the rudder seat is installed at the other end of the rack, the spring fixing piece is installed at the top of the other end of the rack, and the tripod is used for connecting the rack base with the connecting frame and the support frame with the rack base.
[0010] Preferably, the placement unit includes an electric servo, a question card slot and a connecting block, 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 second fixing plate and the connecting block are connected via a tripod.
[0012] Preferably, the electric servo is mounted on a servo seat.
[0013] Preferably, the roller assembly includes a moving seat, a roller and a bearing, the moving seat is fixedly connected to the output end of the second push rod motor, the roller is rotatably connected to the moving seat, the bearings are arranged on both sides of the moving seat, and both ends of the roller are connected to the bearings.
[0014] The utility model discloses an unfolding mechanism of an examination question sheet counter, which has the following beneficial effects: a second push rod motor can drive a moving seat to move toward an answer sheet, and then drive a roller to move toward the answer sheet, so that the roller and the answer sheet are abutted against each other, and then the bottom of the answer sheet can be slowly unfolded; after the unfolding is completed, the first push rod motor drives a clamping head to move toward a question sheet slot, so that the clamping head is abutted against and fixed against the top of the answer sheet, so that the paper already unfolded on the top is fixed, replacing the method of manual counting, which not only reduces labor intensity but also improves counting efficiency. 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 unfolding 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] Furthermore, the bracket unit 1 includes a frame base 11, a connecting frame 12, a frame 13, a servo seat 14, a spring fixing member 15, a support frame 16, a baffle seat 17 and a tripod 18. The connecting frame 12 is arranged 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 servo seat 14 is installed at the other end of the frame 13, the spring fixing member 15 is installed at the top of the other end of the frame 13, the support frame 16 is arranged at the other end of the frame base 11, the baffle seat 17 is installed on the top of the support frame 16, and the tripod 18 is used to connect the frame base 11 with the connecting frame 12 and the support frame 16 with the frame base 11.
[0028] It is particularly disclosed that the placement unit 2 includes an electric servo 21, a question card slot 22 and a connecting block 23. The electric servo 21 is installed on the servo seat 14, and the top of the question card slot 22 is installed on the electric servo 21. The inner middle part of the question card slot 22 is a hollow design, and the connecting block 23 is fixedly connected to the side of the question card slot 22. When the answer sheet is placed in the question card slot 22, the rotation of the electric servo 21 can drive the question card slot 22 and the answer sheet therein to rotate so that the paper is evenly unfolded, and the middle of the side of the question card slot 22 is hollow. When the machine unfolds the paper, the camera will take a picture from here for image processing.
[0029] Specifically disclosed, the unfolding unit 3 includes 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 on the inner side of the support frame 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 unfolding mechanism of 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 unfolding unit (3) 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 unfolding unit (3) comprises a first fixing plate (31), a first push rod motor (32), a clamp (33), a second fixing plate (34), a second push rod motor (35) and a roller assembly (36), wherein the first fixing plate (31) is mounted on the inner side of the support frame (16), the first push rod motor (32) is mounted on the first fixing plate (31), the clamp (33) is fixedly connected to the output end of the first push rod motor (32), the second fixing plate (34) is arranged on one side of the placement unit (2), the second push rod motor (35) is mounted on the second fixing plate (34), and the roller assembly (36) is arranged at the output end of the second push rod motor (35).
2. The unfolding 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 unfolding 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), wherein 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 unfolding mechanism of the examination question card counter according to claim 3, characterized in that: The second fixing plate (34) is connected to the connecting block (23) via a tripod (18).
5. The unfolding mechanism of the examination question card counter according to claim 3, characterized in that: The electric steering gear (21) is mounted on the steering gear seat (14).
6. The unfolding mechanism of the examination question card counter according to claim 1, characterized in that: The roller assembly (36) includes a movable seat (361), a roller (362) and a bearing (363). The movable seat (361) is fixedly connected to the output end of the second push rod motor (35). The roller (362) is rotatably connected to the movable seat (361). The bearing (363) is arranged on both sides of the movable seat (361). Both ends of the roller (362) are connected to the bearing (363).