CN114882503B - Filling block identification device for answer sheet and identification method thereof - Google Patents
Filling block identification device for answer sheet and identification method thereof Download PDFInfo
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- CN114882503B CN114882503B CN202210502668.0A CN202210502668A CN114882503B CN 114882503 B CN114882503 B CN 114882503B CN 202210502668 A CN202210502668 A CN 202210502668A CN 114882503 B CN114882503 B CN 114882503B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/1437—Sensor details, e.g. position, configuration or special lenses
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/40—Document-oriented image-based pattern recognition
- G06V30/42—Document-oriented image-based pattern recognition based on the type of document
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Abstract
The invention provides a filling block identification device for an answer sheet, which comprises a workbench, wherein an identification device is fixedly connected to the upper end surface of the workbench, a test paper box is fixedly connected to one side of the upper end surface of the workbench, a collecting box is fixedly connected to one side of the workbench, the workbench comprises a workbench main body, a mounting groove, a conveyor belt, a friction pad and a cushion block, the mounting groove is formed in the upper end surface of the workbench main body, the conveyor belt is arranged in the workbench main body, the friction pad is fixedly connected to the outer part of the conveyor belt, two groups of cushion blocks are respectively fixedly connected to the top parts of the inner walls of the front side and the rear side of the mounting groove, the identification device comprises an identification box, an identification groove, a limiting roller, an identification plate, a driving motor, an adjusting plate, an adjusting groove, a suction groove, a light transmission groove and a metal sheet, and the identification groove is formed in the identification box.
Description
Technical Field
The invention relates to the field of answer sheet reading equipment, in particular to a filling block identification device and a filling block identification method for an answer sheet.
Background
After paper and pen examination is finished, the answer sheets which are answered by the examinee are required to be collected and delivered to a network evaluation system for processing, the network evaluation system uses a scanner to scan all answer sheets by machine, each option which is filled by the examinee is identified, most of the existing answer sheet filling methods adopt threshold parameter judging methods, specifically, for example, a plurality of characteristic parameter thresholds are set firstly, then image characteristics of filling options are judged, and if the image characteristics are higher or lower than the parameter thresholds, filling identification results are set to be effective filling or ineffective filling.
The existing answer sheet identification device needs to manually send the answer sheets into the scanner one by one, so that the identification efficiency of the answer sheets can be seriously affected; meanwhile, the answer sheets produced by different manufacturers are different in style, the number of objective questions in some exams is huge, and the answer sheets are set manually before each examination, so that time and labor are wasted, and the use cost is improved.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a filling block identification device for answer sheets, which comprises a workbench, wherein an identification device is fixedly connected to the upper end surface of the workbench, a test paper box is fixedly connected to one side of the upper end surface of the workbench, a collecting box is fixedly connected to one side of the workbench, the workbench comprises a workbench main body, a mounting groove, a conveyor belt, a friction pad and a cushion block, the mounting groove is formed in the upper end surface of the workbench main body, the conveyor belt is arranged in the workbench main body, the friction pad is fixedly connected to the outside of the conveyor belt, and two groups of cushion blocks are respectively fixedly connected to the tops of the front side and the rear side inner walls of the mounting groove;
the recognition device comprises a recognition box, a recognition groove, a limiting roller, a recognition plate, a driving motor, a regulating plate, a regulating groove, a suction groove, a light-transmitting groove and a metal sheet, wherein the recognition groove is formed in the recognition box;
the test paper box comprises a test paper box main body, a placing groove, a shaping block, a depressurization groove and a fan, wherein the placing groove is formed in the upper end face of the test paper box main body, the shaping block is fixedly connected to the bottom of the inner wall of the placing groove, the depressurization groove is formed in one side end face of the test paper box main body, the fan is fixedly connected to one side of the test paper box main body, and the output end of the fan is aligned to the inside of the depressurization groove;
the collecting box comprises a containing box main body, a containing groove, a supporting plate, a filling layer, a guide block, a containing groove and a placing groove, wherein the containing groove is formed in the upper end face of the containing box main body, the supporting plate is slidably connected inside the containing groove, the filling layer is filled inside the containing groove, the filling layer is arranged below the supporting plate, the guide block is fixedly connected to one side of the containing box main body, the containing groove is formed in one side of the containing box main body, and the guide roller is rotationally connected inside the containing groove.
Preferably, the friction pad is made of any one of silica gel and rubber, friction lines are arranged on the surface of the friction pad, and the friction pad and the upper end surface of the workbench main body are at the same level.
As a further preferable mode, the identification device is arranged on the upper end face of the workbench main body and is located above the two groups of cushion blocks, the upper end faces of the two groups of cushion blocks are flush with the upper end faces of the friction pads, and the identification plate is located above the two groups of cushion blocks.
As a further preferred option, a camera is arranged at the top of the identification groove, and the camera is in communication connection with a computer.
As a further preferable aspect, the output end of the driving motor drives the adjusting plate to rotate through a connecting rod.
As a further preferable mode, the front end face of the adjusting plate is the same as the upper end face of the identification plate in size, the position of the suction groove on the front end face of the adjusting plate corresponds to the position of the light transmission groove on the upper end face of the identification plate, and the size of the metal sheet is matched with the suction groove.
As a further preferable mode, electromagnets are arranged in the suction groove, each group of electromagnets are provided with independent wire power supply, and the wire power supply of the electromagnets is controlled by a PLC controller.
As a further preferable mode, the shaping blocks are symmetrically and fixedly connected to the bottom of the inner wall of the placing groove in two groups, and the upper end face of each shaping block is arc-shaped.
As a further preference, the guide block extends into the mounting groove.
As a further preferred mode, a filling block recognition method for answer sheets is adopted, when the answer sheet filling block recognition is carried out, the answer sheets are placed in the placing groove, the answer sheets are bent in a partial area under the action of the setting block, the fan blows air to the answer sheets in the placing groove, so that the pressure of the answer sheets to the friction pad is reduced, the answer sheets are dragged to move onto the cushion block through the friction pad, at the moment, the answer sheets enter the recognition device, the answer sheets are arranged below the recognition plate, the driving motor drives the adjusting plate to rotate and press the recognition plate, the electromagnet in the part of the suction groove is controlled to work according to the options of standard answers through the PLC, the metal sheet in the answer area above the recognition plate is sucked into the suction groove, then the driving motor rotates the adjusting plate to the inside of the suction groove, the answer sheets covered by the recognition plate are sent to the computer to be compared with the standard answers, the recognition of the filling block is finished, the answer sheets are sent into the storage groove through the guide block, the guide groove and the guide roller, the answer sheets are kept upwards when the answer sheets are placed in the storage groove, the support plate is not high enough, and the answer sheets are always kept high in the support plate, and the answer sheets are not filled up, and the answer sheets are not too high in the support plate can be received.
(II) advantageous effects
The invention provides a filling block identification device and a method for an answer sheet, which have the following beneficial effects:
1. this a piece recognition device fills out for answer sheet is through fixed examination paper case in workstation up end one side, wherein the conveyer belt is still installed to workstation up end, be provided with the friction pad in the conveyer belt outside, through set up the shaping piece in examination paper incasement, can follow the orbit bending of shaping piece when the answer sheet is placed inside the standing groove, wherein the answer sheet can prevent inside the standing groove, make the answer sheet friction increase each other through the orbit of shaping piece, and then the friction pad is difficult for holding out multiunit answer sheet with frictional force, and still through set up the fan at examination paper case front end, blow through the multiunit answer sheet of fan to the standing groove inside, the ascending force of air current can offset the gravity of partial answer sheet, make the inside settlement of standing groove answer sheet that has put many answer sheets, the friction pad can only hold in the palm a set of answer sheet at every time comes out, the answer sheet is guaranteed to be taken out by one.
This a block recognition device fills out for answer sheet is through at workstation up end fixed connection recognition device, wherein be provided with recognition plate and regulating plate in recognition device inside, and the regulating plate can be rolled up to the regulating tank inside or cover at recognition plate up end through driving motor, and at least a set of printing opacity groove has been seted up at recognition plate up end, printing opacity inslot portion sliding connection has the sheetmetal, set up at least a set of suction slot on the face of regulating plate lid at recognition plate up end, the regulating plate can be pressed on recognition plate completely, suction slot on the regulating plate and the printing opacity groove position one-to-one on the recognition plate this moment, and the printing opacity groove on the recognition plate corresponds to the block position of filling out on the answer sheet, and be provided with the electro-magnet in the suction slot inside, and every group electro-magnet has independent wire power supply, the wire power supply of electro-magnet passes through PLC controller control, make through the answer sheet move recognition plate below, the electro-magnet circular telegram in the suction slot inside on the corresponding printing opacity groove position of rethread PLC controller control standard answer, the electro-magnet can inhale the inside the sheetmetal inside the suction slot that corresponds the standard answer, make the answer sheet suction slot inside, make the answer sheet with the answer sheet that the answer sheet corresponds correspond, make the answer sheet is inhaled to the inside, can be met with the answer sheet, and the answer sheet is taken by the answer sheet, and the answer sheet is adjusted at random, can be met by the answer sheet, and the answer sheet is optionally, can be passed through the answer sheet is taken by the answer sheet to the answer sheet.
According to the filling block identification device for the answer sheet, the collecting box is arranged, the guide blocks extend into the mounting groove, so that the answer sheet can easily enter the storage groove through the guide blocks, the receiving groove and the guide roller, the filling layer is made of soft and elastic materials such as sponge, cotton and silk floss, the change of the height difference between the supporting plate and the receiving groove is not too large when the answer sheet is continuously increased on the supporting plate, the answer sheet can be guaranteed to face upwards when the answer sheet falls onto the supporting plate, and the collection of the answer sheet is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a filling block recognition device for an answer sheet according to the present invention;
FIG. 2 is a schematic view of a workbench according to the present invention;
FIG. 3 is a schematic cross-sectional view of an identification device of the present invention;
FIG. 4 is a diagram showing the positional relationship between an identification plate and an adjustment plate according to the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of the test paper box of the present invention;
fig. 6 is a schematic cross-sectional view of the storage box of the present invention.
In the figure: 1 workbench, 2 recognition device, 3 test paper box, 4 collecting box, 5 workbench main body, 6 mounting groove, 7 conveyer belt, 8 friction pad, 9 cushion, 10 recognition box, 11 recognition groove, 12 spacing gyro wheel, 13 recognition plate, 14 driving motor, 15 regulating plate, 16 regulating groove, 17 suction groove, 18 light transmission groove, 19 sheetmetal, 20 test paper box main body, 21 standing groove, 22 shaping block, 23 depressurization groove, 24 fan, 25 containing box main body, 26 containing groove, 27 bearing plate, 28 filling layer, 29 guide block, 30 income groove, 31 guide roller.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The embodiment of the invention provides a filling block identification device for answer sheets, which comprises a workbench 1, wherein an identification device 2 is fixedly connected to the upper end surface of the workbench 1, a test paper box 3 is fixedly connected to one side of the upper end surface of the workbench 1, a collecting box 4 is fixedly connected to one side end surface of the workbench 1, the workbench 1 comprises a workbench main body 5, a mounting groove 6, a conveyor belt 7, a friction pad 8 and a cushion block 9, the mounting groove 6 is formed in the upper end surface of the workbench main body 5, the conveyor belt 7 is mounted in the workbench main body 5, the friction pad 8 is fixedly connected to the outside of the conveyor belt 7, and the two cushion blocks 9 are respectively fixedly connected to the top of the inner walls of the front side and the rear side of the mounting groove 6;
the identification device 2 comprises an identification box 10, an identification groove 11, a limiting roller 12, an identification plate 13, a driving motor 14, an adjusting plate 15, an adjusting groove 16, a suction groove 17, a light-transmitting groove 18 and a metal sheet 19, wherein the identification groove 11 is formed in the identification box 10, the limiting roller 12 is rotationally connected to the inner wall of the identification groove 11, the identification plate 13 is fixedly connected to the bottom of the inner wall of the identification groove 11, the light-transmitting groove 18 is formed in the upper end face of the identification plate 13, the metal sheet 19 is slidingly connected to the inner wall of the light-transmitting groove 18, the driving motor 14 is arranged on the inner wall of the identification groove 11, the adjusting groove 16 is formed in the inner wall of the rear side of the identification groove 11, the adjusting plate 15 is rotationally connected to the inner wall of the adjusting groove 16, and the suction groove 17 is formed in the front end face of the adjusting plate 15;
the test paper box 3 comprises a test paper box main body 20, a placing groove 21, a shaping block 22, a depressurization groove 23 and a fan 24, wherein the placing groove 21 is formed in the upper end face of the test paper box main body 20, the shaping block 22 is fixedly connected to the bottom of the inner wall of the placing groove 21, the depressurization groove 23 is formed in one side end face of the test paper box main body 20, the fan 24 is fixedly connected to one side of the test paper box main body 20, and the output end of the fan 24 is aligned to the inside of the depressurization groove 23;
the collecting box 4 comprises a collecting box main body 25, a collecting groove 26, a supporting plate 27, a filling layer 28, a guide block 29, a collecting groove 30 and a placing groove 21, wherein the collecting groove 26 is formed in the upper end face of the collecting box main body 25, the supporting plate 27 is slidably connected inside the collecting groove 26, the filling layer 28 is filled inside the collecting groove 26, the filling layer 28 is arranged below the supporting plate 27, the guide block 29 is fixedly connected to one side of the collecting box main body 25, the collecting groove 30 is formed in one side of the collecting box main body 25, and the guide roller 31 is rotatably connected inside the collecting groove 30.
In this embodiment, the friction pad 8 is made of any material such as silica gel or rubber, and friction lines are provided on the surface of the friction pad 8, and the friction pad 8 and the upper end surface of the worktable main body 5 are at the same level, so that the friction pad 8 is soft enough and has a large friction force.
Specifically, the identification device 2 is installed on the upper end face of the workbench main body 5 and is located above the two groups of cushion blocks 9, the upper end faces of the two groups of cushion blocks 9 are flush with the upper end face of the friction pad 8, and the identification plate 13 is located above the two groups of cushion blocks 9.
The answer sheet is in a flat state below the identification plate 13 by rolling extrusion of the limiting roller 12 before entering the identification device 2, the limiting roller 12 is made of plastic, the quality of the answer sheet is easy to rotate, resistance to advancing of the answer sheet is not caused, at least one group of light-transmitting grooves 18 are formed in the upper end face of the identification plate 13, and when the answer sheet is below the identification plate 13, the light-transmitting grooves 18 on the identification plate 13 correspond to the filling Tu Ge on the answer sheet one by one.
In this embodiment, the top of the recognition slot 11 is provided with a camera, and the camera is in communication connection with the computer, and photographs the answer card covered by the recognition plate 13 through the camera, and then sends the photographed photograph into the computer to be compared with the standard answer, so that the answer can be conveniently and rapidly recognized.
In this embodiment, as shown in fig. 3 and 4, the output end of the driving motor 14 drives the adjusting plate 15 to rotate through a connecting rod, at least one group of suction grooves 17 are formed in the adjusting plate 15, the front end surface of the adjusting plate 15 is the same as the upper end surface of the identification plate 13, the position of the suction grooves 17 on the front end surface of the adjusting plate 15 corresponds to the position of the light-transmitting grooves 18 on the upper end surface of the identification plate 13, and the size of the metal sheet 19 is matched with the suction grooves 17.
Wherein, the adjusting plate 15 is driven by the driving motor 14 to be fully pressed on the identification plate 13, and the suction grooves 17 on the adjusting plate 15 are in one-to-one correspondence with the positions of the light transmission grooves 18 on the identification plate 13.
Further, electromagnets are arranged in the suction groove 17, each group of electromagnets is provided with independent wire power supply, and the wire power supply of the electromagnets is controlled by a PLC controller.
The position of the plurality of groups of light-transmitting grooves 18 corresponding to the standard answers on the answer sheet is controlled by the PLC to control the electromagnet in the suction groove 17 in the position of the light-transmitting grooves 18 corresponding to the standard answers to be electrified, and the electromagnet can suck the metal sheet 19 in the light-transmitting grooves 18 corresponding to the standard answers into the suction groove 17 to enable the light-transmitting grooves 18 to be empty, so that a picture is shot through the camera, and a filling block in the empty light-transmitting grooves 18 is not blacked, thereby indicating answer errors.
In this embodiment, the shaping blocks 22 are symmetrically and fixedly connected to the bottom of the inner wall of the placement groove 21, and the upper end surfaces of the shaping blocks 22 are arc-shaped, so that the answer sheet will bend along the track of the shaping blocks 22 when placed in the placement groove 21.
Wherein, the placing groove 21 can internally hold a plurality of sets of answer sheets, if the answer sheets are all placed horizontally, under the action of the friction force of the friction pad 8 and the gravity of the answer sheets, the friction pad 8 can bring more than one set of answer sheets out at one time, thus being inconvenient for the subsequent filling block recognition, the mutual friction force of the answer sheets is increased through the track of the shaping block 22, and the friction pad 8 is not easy to support a plurality of sets of answer sheets with the friction force.
However, if there are too many answer sheets, the pressure of the answer sheets on the friction pad 8 is very high, so that the friction force is very high, and multiple sets of answer sheets can be supported at one time, therefore, a set of fans 24 is arranged in the middle of the side end surface of the test paper box main body 20, the multiple sets of answer sheets in the placing groove 21 are blown through the fans 24, and the gravity of part of the answer sheets is counteracted by the lifting force of the airflow, so that the friction pad 8 can only support one set of answer sheets at a time.
In the present embodiment, the guide block 29 is protruded into the inside of the installation groove 6, so that the answer sheet can easily enter the inside of the receiving groove 26 through the guide block 29, the receiving groove 30 and the guide roller 31.
The filling layer 28 may be any soft and elastic material such as sponge, cotton, silk floss, etc., and this filling ensures that the height difference between the support plate 27 and the receiving slot 30 will not change too much when the answer sheet is continuously increased on the support plate 27, so that the answer sheet will be ensured to face upward when falling onto the support plate 27.
The embodiment also provides a method for identifying the filling block of the answer sheet, when the answer sheet is used for identifying the filling block of the answer sheet, the answer sheet is placed in the placing groove 21, a part of the area of the answer sheet is bent under the action of the shaping block 22, the fan 24 blows air to the answer sheet in the placing groove 21 so as to reduce the pressure of the answer sheet on the friction pad 8, the answer sheet is dragged by the friction pad 8 to move onto the cushion block 9, at the moment, the answer sheet enters the identification device 2, the answer sheet is arranged below the identification plate 13, the driving motor 14 drives the adjusting plate 15 to rotate and press the identification plate 13, the electromagnet in the part of the suction groove 17 is controlled to work through the PLC according to the options of standard answers, the metal sheet 19 in the answer area above the recognition plate 13 is sucked into the suction groove 17, then the adjustment plate 15 is rotated into the adjustment groove 16 by the driving motor 14, the answer sheet covered by the recognition plate 13 is photographed by the camera, the photographed picture is sent into the computer to be compared with the standard answer, the recognition of the filling block is completed, then the answer sheet is sent into the bearing plate 27 in the storage groove 26 by the guide block 29, the containing groove 30 and the guide roller 31, the filling layer 28 is compressed after a certain weight of the answer sheet is carried out on the bearing plate 27, the height of the answer sheet falling into the bearing plate 27 by the containing groove 30 is not too low or too high, and the answer sheet always keeps the filling face upwards when being collected.
In summary, according to the filling block recognition device for the answer sheets and the recognition method thereof provided by the invention, the test paper box 3 is fixed on one side of the upper end face of the workbench 1, the upper end face of the workbench 1 is also provided with the conveyor belt 7, the friction pad 8 is arranged outside the conveyor belt 7, the setting block 22 is arranged in the test paper box 3, so that the answer sheets can be bent along the track of the setting block 22 when being placed in the placing groove 21, the answer sheets can be prevented from being placed in the placing groove 21, the friction force between the answer sheets is increased through the track of the setting block 22, the friction pad 8 is not easy to support a plurality of groups of answer sheets with friction force, the fan 24 is arranged on the front end face of the test paper box 3, the plurality of groups of answer sheets in the placing groove 21 are blown through the fan 24, the rising force of air flow can offset the gravity of part of the answer sheets, so that a plurality of answer sheets can be placed in the placing groove 21, the friction pad 8 can only support one group of answer sheets at a time, and the answer sheets can be pulled out one by one at a time.
Secondly, through at the identification device 2 of workstation 1 up end fixed connection, wherein be provided with identification plate 13 and regulating plate 15 in identification device 2 inside, and regulating plate 15 passes through driving motor 14 and can be rolled up to regulating groove 16 inside or cover at identification plate 13 up end, and at least one set of printing opacity groove 18 has been seted up at identification plate 13 up end, printing opacity groove 18 inside sliding connection has sheetmetal 19, at least one set of suction groove 17 has been seted up on the face of regulating plate 15 cover at identification plate 13 up end, regulating plate 15 can fully press on identification plate 13, suction groove 17 on the regulating plate 15 and the printing opacity groove 18 position one-to-one on the identification plate 13 at this moment, and the printing opacity groove 18 on the answer sheet on the identification plate 13 corresponds to the filling block position on the answer sheet, and be provided with the electro-magnet in the inside of suction groove 17, and the wire power supply of every group electro-magnet has independent wire through PLC controller control, make through moving the answer sheet to identification plate 13 below, the electro-magnet in the inside the suction groove 17 on the corresponding to the position of the answer sheet of PLC controller control standard answer, can be with the electro-magnet in the suction groove 17 inside the suction groove 18, can be with the inside the suction groove 17 of the suction groove of the answer sheet, and can be compared with the arbitrary answer sheet, and the answer sheet can be inhaled by the answer sheet is inhaled to the arbitrary answer sheet is inhaled to the inside the computer, and the answer sheet is inhaled to the answer sheet is completely, can be adjusted to the answer sheet is sucked and is sucked to the answer sheet is completely and can be adjusted, and answer is sucked and is required to the answer.
And, through setting up collecting box 4, wherein guide block 29 stretches into inside mounting groove 6 for the answer sheet can very light get into the storage groove 26 inside through guide block 29, income groove 30 and guide cylinder 31, and filling layer 28 is this kind of soft and have elastic material such as sponge, cotton, silk floss, and this kind fills and guarantees that the difference in height of support plate 27 and income groove 30 can not be too big when answer sheet is continuously increasing on support plate 27, can guarantee the front when making the answer sheet fall on support plate 27 like this upwards, is convenient for collect the answer sheet.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A fill out piece recognition device for answer sheet, includes workstation (1), its characterized in that: the test paper collecting device comprises a workbench (1), an identification device (2) is fixedly connected to the upper end face of the workbench (1), a test paper box (3) is fixedly connected to one side of the upper end face of the workbench (1), a collecting box (4) is fixedly connected to one side of the workbench (1), the workbench (1) comprises a workbench main body (5), a mounting groove (6), a conveying belt (7), a friction pad (8) and a cushion block (9), the mounting groove (6) is formed in the upper end face of the workbench main body (5), the conveying belt (7) is installed inside the workbench main body (5), the friction pad (8) is fixedly connected to the outside of the conveying belt (7), and the two groups of cushion blocks (9) are fixedly connected to the tops of the front side and the rear side of the mounting groove (6);
the identification device (2) comprises an identification box (10), an identification groove (11), a limit roller (12), an identification plate (13), a driving motor (14), an adjusting plate (15), an adjusting groove (16), a suction groove (17), a light transmission groove (18) and a metal sheet (19), wherein the identification groove (11) is formed in the identification box (10), the limit roller (12) is rotationally connected to the inner wall of the identification groove (11), the identification plate (13) is fixedly connected to the bottom of the inner wall of the identification groove (11), the light transmission groove (18) is formed in the upper end face of the identification plate (13), the metal sheet (19) is slidingly connected to the inner wall of the light transmission groove (18), the driving motor (14) is arranged on the inner wall of the identification groove (11), the adjusting groove (16) is formed in the inner wall of the rear side of the identification groove (11), the adjusting plate (15) is rotationally connected to the inner side of the adjusting groove (16), and the suction groove (17) is formed in the front end face of the adjusting plate (15).
The test paper box (3) comprises a test paper box main body (20), a placing groove (21), a shaping block (22), a depressurization groove (23) and a fan (24), wherein the placing groove (21) is formed in the upper end face of the test paper box main body (20), the shaping block (22) is fixedly connected to the bottom of the inner wall of the placing groove (21), the depressurization groove (23) is formed in the side end face of one side of the test paper box main body (20), the fan (24) is fixedly connected to one side of the test paper box main body (20), and the output end of the fan (24) is aligned to the inside of the depressurization groove (23);
the collecting box (4) comprises a containing box main body (25), a containing groove (26), a supporting plate (27), a filling layer (28), a guide block (29), a containing groove (30) and a guide roller (31), wherein the containing groove (26) is formed in the upper end face of the containing box main body (25), the supporting plate (27) is slidingly connected inside the containing groove (26) along the vertical direction, the filling layer (28) is filled inside the containing groove (26), the filling layer (28) is arranged below the supporting plate (27), the guide block (29) is fixedly connected to one side of the containing box main body (25), the containing groove (30) is formed in one side of the containing box main body (25), and two ends of the guide roller (31) are respectively connected with two side inner walls of the containing groove (30) in a rotating mode.
2. The filling block identification device for an answer sheet according to claim 1, wherein: the friction pad (8) is made of any one of silica gel or rubber, friction lines are arranged on the surface of the friction pad (8), and the friction pad (8) and the upper end face of the workbench main body (5) are in the same level.
3. The filling block identification device for an answer sheet according to claim 1, wherein: the recognition device (2) is arranged on the upper end face of the workbench main body (5) and is located above the two groups of cushion blocks (9), the upper end faces of the two groups of cushion blocks (9) are flush with the upper end face of the friction pad (8), and the recognition plate (13) is arranged above the two groups of cushion blocks (9).
4. The filling block identification device for an answer sheet according to claim 1, wherein: the top of the identification groove (11) is provided with a camera which is connected with a computer in a communication way.
5. The filling block identification device for an answer sheet according to claim 1, wherein: the output end of the driving motor (14) drives the adjusting plate (15) to rotate through a connecting rod.
6. The filling block identification device for an answer sheet according to claim 1, wherein: the front end face of the adjusting plate (15) is the same as the upper end face of the identification plate (13), the position of the suction groove (17) on the front end face of the adjusting plate (15) corresponds to the position of the light-transmitting groove (18) on the upper end face of the identification plate (13), and the size of the metal sheet (19) is matched with the suction groove (17).
7. The filling block identification device for an answer sheet according to claim 6, wherein: the inside of the suction groove (17) is provided with electromagnets, each group of electromagnets is provided with independent wire power supply, and the wire power supply of the electromagnets is controlled by a PLC controller.
8. The filling block identification device for an answer sheet according to claim 1, wherein: the shaping blocks (22) are symmetrically and fixedly connected to the bottoms of the inner walls of the placing grooves (21), and the upper end faces of the shaping blocks (22) are arc-shaped.
9. The filling block identification device for an answer sheet according to claim 1, wherein: the guide block (29) extends into the mounting groove (6).
10. A method for identifying a filling block for an answer sheet, which adopts the filling block identification device for an answer sheet according to any one of claims 1 to 9, and is characterized in that: when the answer sheet is filled and coated on the block for recognition, the answer sheet is placed in the placing groove (21), a part of the area is bent under the action of the shaping block (22), the fan (24) blows air to the answer sheet in the placing groove (21) so as to reduce the pressure of the answer sheet on the friction pad (8), the answer sheet is dragged to move onto the cushion block (9) through the friction pad (8), the answer sheet enters the recognition device (2), the answer sheet is driven to rotate under the recognition plate (13) through the driving motor (14) to press the regulating plate (15) on the recognition plate (13), the electromagnet in the part of the suction groove (17) is controlled to work through the PLC according to the option of a standard answer, the metal sheet (19) in the answer area above the recognition plate (13) is sucked into the suction groove (17), then the regulating plate (15) is rotated into the inside of the regulating groove (16) through the driving motor (14), the answer sheet covered by the recognition plate (13) is dragged to the cushion block, the photographed picture is sent into the computer, the recognition plate (2) is compared with the guide block (28) to be filled and coated on the guide block (27) to be compressed, the guide block (30) is filled in the support plate (30) after the guide block is filled up, the guide block is filled up on the support plate (27) to be placed on the guide block for recognition of the guide block (30), the height of the answer sheet falling to the bearing plate (27) from the containing groove (30) is not too low or too high, and the answer sheet always keeps the filling face upwards when being collected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210502668.0A CN114882503B (en) | 2022-05-09 | 2022-05-09 | Filling block identification device for answer sheet and identification method thereof |
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| CN202210502668.0A CN114882503B (en) | 2022-05-09 | 2022-05-09 | Filling block identification device for answer sheet and identification method thereof |
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| CN114882503B true CN114882503B (en) | 2023-07-14 |
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| CN114882503A (en) | 2022-08-09 |
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