CN209267669U - An automatic high-efficiency answer book scanning device - Google Patents

Abstract

The utility model discloses an automatic high-efficiency answer book scanning device, which includes a control system, an information collection system, an adsorption moving mechanism, a clamping and moving mechanism, a page-turning and smoothing mechanism, an anti-reabsorption mechanism, and a collecting device. First, the suction moving mechanism moves to the top of the answer booklet, and the answer booklet is sucked up to the clamping position. Then the clamping moving mechanism moves to the clamping position, clamps the hard edge and moves to the scanning area. The information collection system scans the pages, and the suction moving mechanism works again to lift up the scanned pages. At the same time, the anti-relapse mechanism works, and the pressure plate touches the lifted page of the answer booklet. When the leveling frame moves to the clamping position, the suction cup is released, and the leveling frame continues to move to the right. Anti-re-suction mechanism 2 presses the turned over pages, and the smoothing frame resets. Anti-re-suction mechanism 1 presses the answer booklet and scans again. After an answer booklet is scanned, the suction moving mechanism resets, and the clamping moving mechanism transfers the answer booklet to the automatic collection device.

Description

An automatic high-efficiency answer book scanning device

technical field

The invention relates to the technical field of scanning devices, in particular to an answer book scanning device.

Background technique

There are a large number of answer books for college course examinations, which take up a lot of space when archiving, and it takes manpower to carry them. It is also very inconvenient to retrieve information. The above problems can be solved by storing information in the form of electronic documents, but currently there are The test paper scanning equipment can only scan the hard single-page answer sheet, and the paper of the answer booklet is thin and the page-turning machine cannot scan it quickly and efficiently. Therefore, the invention provides an automatic and efficient answer book scanning device. The device can not only complete the page turning of the answer booklet through the cooperation of the frame parts, transmission parts, pneumatic parts, and camera parts, but also complete the functions of scanning, anti-relapse, and stacking of the answer booklet. After the scanning is completed, the computer uses image recognition technology. Extract the course information and class information on the first page, and generate a folder; use image recognition technology to extract the candidate information on the first page, name the file with the candidate's name and student number, and store it in the course information and class at the same time In the folder named by the information, the extracted pictures are converted into PDF documents and saved. This not only saves the storage space of the files, but also makes it very convenient to retrieve and consult the answer booklet.

Invention content

The purpose of the invention is to provide a device that can turn over and scan the pages of the answer booklet, realize the information collection of the content of the answer booklet, and stack it neatly after scanning. The technical solution adopted by the present invention to solve its technical problems is:

An automatic high-efficiency answer book scanning device, including a frame, a collection device, a control system, an information collection system, and also includes an adsorption moving mechanism, a clamping and moving mechanism, a page turning and smoothing mechanism, and an anti-reabsorption mechanism;

The suction moving mechanism is used to pick up an answer book and move the answer book to the clamping position, suck the side of the answer book that turns pages, and lift each page;

The clamping and moving mechanism is used to clamp one side of the answer booklet sealant, and move the answer booklet so that the page-turning side of the answer booklet is directly below the adsorption device of the adsorption moving mechanism; after the answer booklet is scanned, the answer booklet move into the chute;

The page-turning and smoothing mechanism is used to smooth a certain page of the answer book after it is lifted;

The anti-relapse mechanism is used to touch the lifted answer page to prevent the two pages from sticking to each other when there is a vacuum between them;

First, the suction moving mechanism moves to the top of the answer booklet, sucks up an answer booklet to the clamping position; then the clamping moving mechanism moves to the clamping position, clamps the hard edge and moves to the scanning area; the information collection system scans the page, absorbs The moving mechanism works again, lifts the scanned pages, and at the same time, the anti-resuction mechanism works, and the pressing plate touches the lifted page of the answer book; when the leveling frame moves to the clamping position, the suction cup is released, and the leveling frame continues to move to the right; The page smoothing mechanism resets and scans again. After an answer booklet is scanned, the adsorption moving mechanism resets, and the clamping moving mechanism transfers the answer booklet to the automatic collection device.

The above-mentioned automatic high-efficiency answer book scanning device, the anti-re-absorption mechanism includes a frame, an anti-re-absorption rotating shaft 1, a swing arm, a pressure plate, a spring, an iron block, and an electromagnet. One end of the swing arm is fixedly connected to the iron block, and the other end Connect the pressure plate, the end of the swing arm close to the iron block in the middle and lower part is movably connected to the frame through the anti-re-absorption rotating shaft, when the PLC controller controls the electromagnet to power off, the spring pulls the end of the iron block of the swing arm to move upward, and at the same time drives the pressure plate downward movement, the pressure plate touches the answer booklet.

In the above-mentioned automatic and high-efficiency answer booklet scanning device, the anti-relapse mechanism further includes the second anti-relapse rotating shaft, and the pressing plate and the swing arm are movably connected through the second anti-retaking rotating shaft.

In the above-mentioned automatic and efficient answer book scanning device, the anti-relapse mechanism has two, one is used to touch the answer book, and the unscanned answer paper is pressed after destroying the mutual adhesion of the pages, and the other is used to press the scanned answer paper. past answer sheet.

The above-mentioned automatic and high-efficiency answer book scanning device, the adsorption moving mechanism includes an adsorption device, an adsorption fixing device, an up and down moving device, and a left and right moving device, the adsorption device is used to suck the answer book, and the adsorption and fixing device is used to fix the adsorption device, The up and down moving device is used to push the adsorption device to move up and down, and the left and right moving device is used to transport the answer book left and right.

The above-mentioned automatic high-efficiency answer book scanning device, the adsorption device includes a suction cup, the adsorption and fixing device includes a suction cup holder, the up and down moving device includes a pneumatic cylinder, and the left and right moving device includes a slider, a slide rail, a conveyor belt, Pulley, rotating shaft fixing seat, slide rail fixing seat, motor one, motor seat, coupling, rotating shaft, the suction cup frame is an inverted U shape, and the inner sides of both sides are respectively equipped with adsorption mobile sliders and adsorption mobile conveyor belt fixed blocks, suction cups The frame is fixed on the adsorption moving conveyor belt through the fixed block of the adsorption moving conveyor belt, and slides smoothly on the two adsorption moving slide rails through the two adsorption moving sliders. There is a suction cup, the pressure sensor is fixed in the suction cup, the suction cup is connected with the ventilation pipe, and the answer booklet can be sucked up after the suction cup is ventilated.

In the above-mentioned automatic high-efficiency answer book scanning device, there are two pneumatic cylinders, and correspondingly there are two suction cups to make the adsorption more stable.

In the above-mentioned automatic and high-efficiency answer book scanning device, the clamping and moving mechanism includes a conveyor belt, a pulley, a second motor, a motor base, a slide rail fixing seat, a slide rail, a slider, a pneumatic cylinder, a rotating shaft fixing seat, and a pneumatic clamp. The pneumatic clamp includes a fixed splint, a movable splint, a horizontal plate of the movable splint, a pneumatic cylinder, a pneumatic clamp slider, and a pneumatic clamp slide rail. There is a fixed block for clamping and moving the conveyor belt, and there are pneumatic clamping slide rails on both sides of the fixed splint. The horizontal plate of the movable splint perpendicular to the vertical plate of the movable splint, the pneumatic clamp slider can perform limit movement on the pneumatic clamp slide rail, and the pneumatic cylinder is fixed between the fixed block of the conveyor belt and the horizontal plate of the mobile splint to move the movable splint up and down.

The above-mentioned automatic high-efficiency answer book scanning device, the page-turning and smoothing mechanism includes a smoothing frame, a motor base, a motor, a shaft coupling, a rotating shaft, a rotating shaft fixing seat, four pulleys, two conveyor belts, two sliding rail, sliding rail fixing seat, and the smoothing frame is an inverted U shape, and the inner sides of the two sides are respectively equipped with a page turning slider and a page turning conveyor belt fixing block. The slider glides smoothly on the two flip rails.

The above-mentioned automatic high-efficiency answer book scanning device, the control system includes PLC control system, solenoid valve one, solenoid valve two, solenoid valve three, pressure sensor, sensor one, sensor two, sensor three, sensor four, sensor five, The sensor transmits the induction information to the PLC control system, and the PLC regulates the movement of each solenoid valve. The first solenoid valve and the third solenoid valve are three-position four-way reversing valves, and the second solenoid valve is a two-position three-way reversing valve.

The beneficial effects created by the invention are: it is possible to separate and move a single answer booklet, to scan each page of the answer sheet, to realize the information collection of the content of the answer booklet, and to stack it neatly after scanning; The mechanism can realize page turning and smoothing; the anti-resuction mechanism one can prevent two pages from sticking to each other when there is a vacuum between them; the anti-resuction mechanism two can press the scanned answer album to prevent it from being taken up; The second suction shaft is movably connected with the swing arm, which overcomes the disadvantage that the fixed connection may scratch the answer sheet; the control system can automate the entire work process; the slideway of the collection device is set at an incline, so that the answer booklet slides into the storage box to complete automatic stacking .

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the general drawing of transmission device created by the present invention;

Fig. 2 is a general diagram of the answer booklet scanning device;

Fig. 3 is the schematic diagram of adsorption movement mechanism;

Fig. 4 is a schematic diagram of a clamping and moving mechanism;

Fig. 5 is a schematic diagram of a page-turning and smoothing mechanism;

Figure 6 is a schematic diagram of the anti-relapse mechanism;

Figure 7 is a left view of the anti-relapse mechanism;

Figure 8 is a schematic diagram of the rack;

Fig. 9 is a distribution diagram of control system components;

Figure 10 is a schematic diagram of the information collection system;

Figure 11 is a sensor location diagram;

Fig. 12 is a schematic diagram of the initial placement position of a stack of answer books;

Fig. 13 is a schematic diagram of the state when the suction cup pneumatic device moves the answer book;

Figure 14 is a schematic diagram of the state when the pneumatic clamp clamps the hard edge of the answer book;

Figure 15 is a schematic diagram of the state when the first page of the answer booklet is opened and scanned;

Fig. 16 is a schematic diagram of the state of the pneumatic clamp moving the answer book to the inclined slideway;

Figure 17 is a block diagram of the control system.

In the figure 1-frame, 2-installation plate 1, 3-installation plate 2, 4-installation plate 3, 5-motor 1, 6-motor 2, 7-motor 3, 8-slide, 9-storage box, 10-motor one shaft, 11-rotation shaft fixing seat one, 12-rotation shaft fixing seat two, 13-motor one base, 14-motor one coupling, 15-adsorption mobile slide rail, 16-adsorption mobile slider, 17- Adsorption mobile slide rail fixed seat, 18-adsorption mobile pulley, 19-adsorption mobile conveyor belt, 20-suction cup frame, 21-suction cup one, 22-suction cup two, 23-pneumatic cylinder one, 24-pneumatic cylinder two, 25-electromagnetic Valve 1, 26-solenoid valve 2, 27-pressure sensor, 28-clamping and moving shaft, 29-rotating shaft fixing seat 3, 30-pneumatic cylinder 3, 31-clamping and moving slide rail, 32-clamping and moving slider, 33-Clamping mobile slide rail fixing seat, 34-motor two base, 35-clamping moving pulley, 36-fixed splint, 37-moving splint, 38-pneumatic clamp slide rail, 39-pneumatic clamp slider, 40- Solenoid valve three, 41-moving splint horizontal plate, 42-clamping moving conveyor belt, 43-turning shaft, 44-fixing seat of turning shaft, 45-turning coupling, 46-motor three base, 47-smoothing Frame, 48-page turning pulley, 49-page turning conveyor belt, 50-page turning slide rail, 51-page turning slide rail fixing seat, 52-anti-re-suction shaft one, 53-swing arm, 54-anti-re-suction shaft Two, 55-press plate, 56-spring, 57-iron block, 58-electromagnet, 59-working platform, 60-corner code, 61-pillar one, 62-pillar two, 63-installation base plate, 64-camera fixing bracket , 65-lifting rod, 66-joint hinge, 67-telescopic rod, 68-camera, 69-sensor 1, 70-sensor 2, 71-sensor 3, 72-sensor 4, 73-sensor 5, 74-anti-relapse Mechanism 1, 75-Anti-relapse Mechanism 2, 76-Adsorption Moving Mechanism, 77-Clamping Moving Mechanism, 78-Page Turning and Smoothing Mechanism, 79-Answer Booklet Placement Area, 80-A Stack of Answer Booklets, 81-Pneumatic Clamp holding position, 82-scanning area, 83-answer book storage area, 84-an answer booklet, 85-answer book scanning position, 86-page turning position, 87-answer book release position, 88-information collection system, 89- Control system, 90-sensing system.

Detailed ways

As shown in Figure 2, the device is mainly composed of an adsorption moving mechanism 76, a clamping and moving mechanism 77, a page-turning and smoothing mechanism 78, an anti-resuction mechanism 1 74, a frame 1, an anti-resuction mechanism 2 75, a collection device, and a control system. 89, information collection system 88 and other components.

Main functions realized by the system: separation of single answer booklets, page turning of single answer booklets, scanning of answer booklets, stacking of single answer booklets, and finally scanning and stacking of a stack of answer booklets.

The composition, function and action process of each mechanism:

1. Adsorption moving mechanism, as shown in Figure 3

Function: Suction up an answer booklet and move the answer booklet to the clamping position; suck the flipping side of the answer booklet to lift each page.

Composition: motor one 5, motor one rotating shaft 10, rotating shaft fixing seat one 11, rotating shaft fixing seat two 12, motor one base 13, motor one coupling 14, adsorption moving slide rail 15, adsorption moving slider 16, adsorption moving slide Rail fixing seat 17, suction moving pulley 18, suction moving conveyor belt 19, suction cup frame 20, suction cup 1 21, suction cup 2 22, pneumatic cylinder 1 23, pneumatic cylinder 2 24, solenoid valve 1 25, solenoid valve 2 26, pressure sensor 27. The suction cup frame of the adsorption moving mechanism is an inverted U shape, and the inner sides of the two sides are respectively equipped with an adsorption mobile slider and an adsorption mobile conveyor belt fixing block. Sliding, the two pneumatic cylinders are respectively fixed on the crossbar of the suction cup frame, the ends of the piston rods of the pneumatic cylinders are respectively connected with suction cups, the pressure sensors are fixed in the suction cups, the suction cups are connected to the air pipe, the air pipe is connected to the vacuum generator, and the suction cups can be ventilated. Pick up the answer booklet. When working, the rotation of the motor drives the movement of the suction moving conveyor belt, the suction moving conveyor belt drives the movement of the suction cup frame, and the suction moving slide rail is parallel to the conveyor belt, so that the suction cup frame runs more smoothly.

Action process: The PLC control system controls the motor to reverse and drives the suction cup frame to move along the adsorption moving slide rail to the designated position (above the side of a stack of answer booklet glue) through the adsorption moving pulley and the adsorption moving conveyor belt. Sensor 1 detects whether the adsorption moving mechanism is in place, and once the sensor detects that the adsorption moving mechanism is in place, it sends a signal to the PLC control system. The PLC control system controls the motor to stop, the solenoid valve 1 is forward-conducting, and the solenoid valve 25 is three-position four-way reversing The valve controls the elongation, contraction and maintenance of pneumatic cylinder 1 and pneumatic cylinder 2. At this time, pneumatic cylinder 1 and pneumatic cylinder 2 respectively push suction cup 1 and suction cup 2 to move downward. When the suction cup presses the answer booklet, the pressure sensor on the suction cup sends a signal to PLC control system, the PLC control system controls the conduction of the solenoid valve 2 (the solenoid valve 2 controls the conduction and cut-off of the air source and the vacuum generator, so that vacuum and non-vacuum are formed in the suction cup), and controls the conduction of the vacuum generator to form a vacuum in the suction cup. Vacuum, the suction cup sucks the glue side of the answer booklet tightly, and then the solenoid valve conducts in the opposite direction, the pneumatic cylinder drives the suction cup to lift the answer booklet, and then the solenoid valve returns to the normal position, and the first and second pneumatic cylinders stop. As soon as the motor rotates forward, the suction cup holder moves reversely along the suction moving slide rail through the suction moving pulley and the suction moving conveyor belt, and the answer booklet is quickly moved to the clamping position, the solenoid valve two is disconnected, and the suction cup releases the answer booklet.

2. Clamping and moving mechanism, as shown in Figure 4

Function: clamp the glue side of the answer booklet, and move the answer booklet so that the page-turning side of the answer booklet is directly below the suction cup; after the answer booklet is scanned, move the answer booklet into the slideway.

Composition: motor two 6, clamping and moving shaft 28, rotating shaft fixing seat three 29, air cylinder three 30, clamping and moving slide rail 31, clamping and moving slider 32, clamping and moving slide rail fixing seat 33, motor two base 34 , Clamping moving pulley 35, fixed splint 36, moving splint 37, pneumatic clamping slide rail 38, pneumatic clamping slider 39, solenoid valve three 40, moving splint horizontal plate 41, clamping mobile conveyor belt 42. The fixed splint, the movable splint, the horizontal plate of the movable splint, the pneumatic cylinder three, the pneumatic clamp slider, and the pneumatic clamp slide rail form the pneumatic clamp. The fixed splint is type 7, and the two ends of the bottom are respectively fixed with clamping and moving sliders, and the middle is fixed with a fixed block for clamping and moving the conveyor belt. The two sides of the fixed splint are also equipped with pneumatic clamping slide rails. Pneumatic clamp slider, the movable splint is covered on the fixed splint, and the end of the movable splint is away from the movable splint. The cylinder body is fixed on the fixed block of the conveyor belt, and the end of the piston rod is fixed on the horizontal plate of the movable splint. Of course, it can also be designed so that the cylinder body is fixed on the horizontal plate of the movable splint, and the end of the piston rod is fixed on the fixed block of the conveyor belt. In the figure, the first kind of scheme. When working, the motor 2 drives the clamping and moving conveyor belt to move, the clamping and moving transmission belt drives the fixed splint to move, and the clamping and moving slider makes the fixed splint and its components move smoothly on the clamping and moving slide rail. After reaching the clamping position, The piston rod pulls the movable splint to move down along the pneumatic clamp slide rail, and clamps the answer book together with the fixed splint.

Action process: The PLC control system controls the second motor to rotate forward and moves the clamping moving mechanism to the clamping position through the clamping and moving pulley and the clamping and moving conveyor belt. After the sensor 2 detects that the clamping and moving mechanism reaches the clamping position, it sends a signal to PLC control system, the PLC control system controls the motor two to stop, the solenoid valve three is forward-directed, the pneumatic cylinder three pushes the movable splint to move down along the pneumatic clamp slide rail to clamp the answer booklet, the second motor reverses, and moves the pulley through the clamping, Clamping and moving the conveyor belt and clamping and moving slide rails to move the answer book to the scanning area. At this time, the side of the answer book that turns pages is directly under the suction cup. After the scanning of the answer booklet is completed, the PLC controls the motor two to rotate and clamp the moving mechanism to move in the opposite direction along the slide rail, and the answer booklet is moved to the inclined slideway.

3. The page-turning and smoothing mechanism, as shown in Figure 5

Function: When the suction moving mechanism picks up a page in the answer booklet, the page turning and smoothing mechanism starts to move to completely turn over the page.

Composition: motor three, page turning shaft 43, page turning shaft fixing seat 44, page turning coupling 45, motor three base 46, smoothing frame 47, 48-page turning pulley, 49-page turning conveyor belt, 50-turning Page slide rail, 51-page turning slide rail fixing seat. The smoothing frame of the page-turning and smoothing mechanism is an inverted U shape, with page-turning sliders and page-turning conveyor belt fixing blocks on the inner sides of the two sides. Blocks glide smoothly on two flip slides. During work, the three rotations of the motor drive the movement of the page-turning conveyor belt, and the page-turning conveyor belt drives the movement of the troweling frame, and the page-turning slide rails are parallel to the page-turning conveyor belt, so that the troweling frame runs more smoothly. The page-turning and smoothing mechanism is mainly to smooth a certain page of the answer booklet by the smoothing frame backwards.

Action process: The PLC control system controls the three reverse rotations of the motor through the page-turning pulley and the page-turning conveyor belt to drive the smoothing frame to move along the page-turning slide rail. Sensor 4 detects whether the page-turning and smoothing mechanism is in place. To smooth the mechanism, the control system controls the motor to stop three times, and now the first page of the answer booklet is fully opened. After the anti-relapse mechanism 2 pressed the answer booklet, the page-turning and smoothing mechanism resets.

Anti-relapse mechanism, as shown in Figures 6 and 7

Composition: It may include only one anti-relapse mechanism or two anti-relapse mechanisms. Preferably, it includes the first anti-relapse mechanism and the second anti-relapse mechanism. The two anti-relapse mechanisms are composed of a frame, an anti-relapse Suction rotating shaft one 52, swing arm 53, anti-reaction rotating shaft two 54, pressing plate 55, spring 56, iron block 57, electromagnet 58 forms. The working platform is installed on the frame, the swing arm is connected to the frame through the anti-re-suction shaft 1, the pressure plate is connected to the pressure plate end of the swing arm through the anti-re-suction shaft 2, and the iron block is installed at the tail end of the swing arm, which is connected to the frame through a spring , the iron block is fixedly connected to the end of the swing arm, the electromagnet is installed on the frame, and the iron block is parallel to the working platform. One end of the pressing plate is long and the other end is short, and the short end is pressed under the swing arm, thereby preventing the pressing plate from lifting. The anti-relapse mechanism-is used to touch the lifted answer page to prevent the two pages from sticking to each other when there is a vacuum between them. After touching, the anti-relapse mechanism-presses the unscanned answer booklet. The second is used to hold down the scanned answer page of the answer booklet.

Function and action process: when the page is turned, the iron end of the anti-resuction mechanism 1 is pressed down, and the end of the pressure plate moves upwards, and the side of the pressure plate touches the answer page to be scanned, preventing the suction cup from turning over the page due to the gap between the two pages. When there is a vacuum between them, they stick to each other; after the contact is completed, when the page-turning and smoothing mechanism is turning the page, the iron block end of the anti-resuction mechanism 1 moves up, and the pressure plate end moves down to press the answer booklet to prevent unscanned answers when turning the page The pages of the book are lifted. After the page-turning and smoothing mechanism is in place, the anti-relapse mechanism 2 presses the scanned answer page to prevent it from lifting.

collection device

Composition: slideway, storage box, the slideway is set obliquely, and a storage box is set at the end of the slideway.

Function: Guide the answer book to slide into the storage box and complete automatic stacking.

control system, as shown in Figure 9

Composition: PLC control system 89, solenoid valve 1 25, solenoid valve 2 26, solenoid valve 3 40, pressure sensor 27, sensor 1 69, sensor 2 70, sensor 3 71, sensor 4 72, sensor 5 73.

Function and action process: PLC controls the entire device by sending commands; solenoid valve 1 controls the forward conduction, reverse conduction and normal state of pneumatic cylinder 1 and pneumatic cylinder 2 by receiving PLC control commands; The control command controls the suction and release of the suction cup 1 and the suction cup 2; the solenoid valve 3 controls the forward conduction, reverse conduction and normal state of the pneumatic cylinder 3 by receiving the control command from the PLC; Booklet, the signal is fed back to the PLC control system, and the PLC control system controls the solenoid valve to return to the normal position; as soon as the sensor detects that the adsorption moving mechanism reaches the top of the hard edge of the answer booklet, it sends a signal to the PLC control system to control the motor to stop; the sensor Second, when the adsorption moving mechanism reaches the clamping position, it sends a signal to the PLC control system to control the motor one to stop; when it detects that the clamping moving mechanism reaches the clamping position, it sends a signal to the PLC control system to control the motor two to stop; the sensor three detects the clamping position When the holding moving mechanism reaches the scanning position, it sends a signal to the PLC control system to control the second motor to stop; when the sensor four detects that the page-turning and smoothing mechanism moves to the release position, it sends a signal to the PLC control system to control the motor three to stop; the sensor five detects the clamping movement When the mechanism reaches the release position, it sends a signal to the PLC control system to control the second motor to stop. When it detects that the page-turning and smoothing mechanism moves to the release position, it sends a signal.

Information collection system, as shown in Figure 10

Function: Can scan the contents of the answer booklet.

Composition: camera fixing bracket 64, lifting rod 65, joint hinge 66, telescopic rod 67, camera 68.

The working process of the device: as shown in Figure 14, put a stack of answer books in the answer book placement area, then the system starts, the PLC control system starts to work, first the suction moving mechanism starts to work, and the suction cup moves to the hard edge of the stack of answer books Above one side, the pneumatic cylinder drives the suction cup to move downward, sucks up an answer book and moves the answer book to the clamping position, and the suction cup releases the answer book. Then the clamping and moving mechanism starts to work, and the pneumatic clamp composed of the fixed clamping plate, the movable clamping plate, the horizontal plate of the movable clamping plate, the pneumatic cylinder three, the pneumatic clamping slider and the pneumatic clamping rail moves to the clamping position, clamps the hard edge of the answer booklet and Move the answer booklet to the scanning area. At this time, the page-turning side of the answer booklet is just under the suction cup. Then the information collection system starts to work, and the camera starts to scan the first page. The camera can scan the left and right sides at the same time. Touch the lifted page of the answer booklet (to break the vacuum between the two pages and prevent relapse), then press down on the answer booklet. The page-turning and smoothing mechanism starts to work, and when the leveling frame moves to the right to the clamping position (which is also the position where the suction cup stops at this time), the suction cup is released, and the page-turning and smoothing mechanism continues to move to the right to completely turn over the page just lifted . The anti-relapse mechanism 2 starts to work and presses the page just turned, the wiper frame resets, the information collection system works again, and scans the turned page. After the scanning is completed, the device starts to repeat the action of turning the page and scanning, and the book answers the questions. After scanning the booklet, the anti-resuction mechanism 1 and anti-resuction mechanism 2 are reset, the suction cup of the answer booklet picks up the last page, the page turning and smoothing mechanism turns over the last page, and the clamping and moving mechanism works again to move the answer booklet into the slideway , under the action of gravity, the answer book slides into the storage box.

Rack, as shown in Figure 8

Composition: Frame 1 is made of 3030 aluminum profile, pulley bracket, motor three brackets, motor one bracket, working platform 59, corner code 60, mounting plate 3 4, pillar 1 61, pillar 2 62, mounting base plate 63, mounting plate One 2, the installation plate two 3 forms.

Function: Play a supporting role for the mechanism of the whole device.

How to implement and install

As shown in Figure 3, the suction moving mechanism is composed of a motor one 5, a motor one rotating shaft 10, a rotating shaft fixing seat 11, a rotating shaft fixing seat two 12, a motor one base 13, a motor one shaft coupling 14, an adsorption moving slide rail 15, Adsorption mobile slider 16, adsorption mobile slide rail fixed seat 17, adsorption mobile pulley 18, adsorption mobile conveyor belt 19, suction cup frame 20, suction cup 1 21, suction cup 2 22, pneumatic cylinder 1 23, pneumatic cylinder 2 24, solenoid valve 1 25, electromagnetic valve two 26, pressure sensor 27 forms. The motor one is fixed on the installation board one by connecting screws through the motor one base, and the two ends of the motor one are connected with the motor one shaft through the motor one coupling. One is installed on the third mounting plate, the motor shaft passes through the shaft fixing seat and the suction moving pulley, the other three pulleys are installed in the same way, a conveyor belt is installed between the pulleys on each side, and the two ends of the suction moving slide rail pass through two One slide rail fixing seat is fixed, and the fixing seat is fixed on the installation substrate by bolts. The installation method of the other side slide rail is the same. The suction cup frame can move along the suction moving slide rail. The inner side of the suction cup frame is glued to the suction moving conveyor belt through superglue, and the suction moving conveyor belt can pull the suction cup frame to move. Two pneumatic cylinders are installed on the suction cup frame, and a suction cup is installed at the end of the piston rod of the pneumatic cylinder. .

As shown in Figure 4, the clamping and moving mechanism consists of motor two 6, clamping and moving rotating shaft 28, rotating shaft fixing seat three 29, air cylinder three 30, clamping and moving slide rail 31, clamping and moving slide block 32, clamping and moving slide rail Fixed seat 33, motor two base 34, clamping and moving pulley 35, fixed splint 36, moving splint 37, pneumatic clamping slide rail 38, pneumatic clamping slider 39, solenoid valve three 40, moving splint horizontal plate 41, clamping and moving Conveyor belt 42 is formed. Pneumatic clamp is composed of clamping moving slider, clamping moving slide rail, fixed splint, moving splint, moving splint horizontal plate and pneumatic cylinder. The second motor is installed on the base of the second motor and then fixed on the mounting plate. One of the clamping moving pulleys is directly mounted on the second motor and the other clamping moving pulley is fixed on the third rotating shaft fixing seat by clamping the moving shaft. The clamping mobile slide rail is fixed on the mounting plate through the clamping mobile slide rail seat, the movable splint and the fixed splint of the pneumatic clamp are connected by the pneumatic clamp slider and the pneumatic clamp slide rail, and a pneumatic cylinder is installed in the middle, and the pneumatic cylinder can drive the pneumatic clamp Move up and down to complete the clamping and loosening action. The bottom of the fixed splint is fixed with the clamping and moving conveyor belt through the clamping and moving conveyor belt fixing block. The clamping and moving conveyor belt can drive the pneumatic clamp to move along the clamping and moving slide rail.

As shown in Figure 5, the page-turning and smoothing mechanism is composed of three motors, a page-turning rotating shaft 43, a page-turning rotating shaft holder 44, a page-turning coupling 45, three motor bases 46, a smoothing frame 47, a page-turning pulley 48, and a page-turning wheel 48. Page conveyor belt 49, page turning slide rail 50, page turning slide rail fixing seat 51. The motor three is fixed on the mounting plate two through the base of the motor three, the two ends of the three rotating shafts of the motor are connected with the turning shaft through the page turning coupling, the turning shaft is fixed by the fixing seat of the turning shaft, and the turning pulley is installed on the turning shaft At the end of the rotating shaft, a conveyor belt is installed between the page turning pulleys on the same side. The page turning slide rails on both sides are fixed on the installation substrate through the page turning slide rail fixing seats. The slide rails move and are fixed on the page-turning conveyor belts on both sides. When the motor 3 rotates, the page-turning conveyor belts will drive the troweling frame to move along the page-turning slide rails.

The information collection system is shown in Figure 10. The scanning bracket is installed on the working platform, the lifting rod is connected with the telescopic rod through a damping hinge, and the camera is installed at the front end of the telescopic rod.

Anti-re-suction mechanism is made up of frame, anti-re-suction rotating shaft one 52 as shown in Figure 6 and 7, swing arm 53, anti-re-suction rotating shaft two 54, pressing plate 55, spring 56, iron block 57, electromagnet 58 forms. The working platform is installed on the frame, the swing arm is connected to the frame through the anti-re-suction shaft 1, the pressure plate is connected to the pressure plate end of the swing arm through the anti-re-suction shaft 2, and the iron block is installed at the tail end of the swing arm, which is connected to the frame through a spring , Electromagnets are installed on the frame, and the iron block is parallel to the working platform. The action principle of the anti-re-suction mechanism is that when the PLC controller controls the electromagnet to be energized, the spring is in a stretched state and the electromagnet sucks the iron block on the swing arm tightly, and the iron block end of the swing arm moves downward, and the swing arm drives the pressure plate to move upward. The pressing plate releases the answer booklet, and when the PLC controller controls the electromagnet to power off, the spring pulls the iron end of the swing arm to move upwards, and at the same time drives the pressing plate to move downwards, and the pressing plate presses the answering booklet tightly. One end of the pressing plate is long and the other end is short, and the short end is pressed under the swing arm, thereby preventing the pressing plate from lifting. In order to enhance the effect of the anti-re-suction mechanism to prevent two pages from sticking to each other, an electrostatic adsorber can be installed on the pressing plate, and the anti-adsorption effect can be enhanced by using the electrostatic adsorption capacity. The anti-adsorption effect can also be strengthened by enlarging the contact area between the pressing plate and the page. For example, a vertical plate can be added on the side where the pressing plate contacts the page to expand the contact area between the pressing plate and the page.

The working platform is installed on the top of the frame, and the slideway and storage box are installed behind the scanning area.

The working process of the device

As shown in Figure 12, put a stack of answer books in the answer book storage area, then the system starts, the PLC control system starts to work, first the adsorption moving mechanism starts to work, as shown in Figure 13, the function of the adsorption moving mechanism is to move the answer book Pick up and move to the clamping position, the motor reverses and drives the suction cup holder to move to the designated position (relative to the figure, not an absolute position) along the suction moving slide rail through the suction moving pulley and the suction moving conveyor belt. above the glued side of the answer booklet). Once the sensor detects that the adsorption moving mechanism is in place, it sends a signal to the PLC control system. The PLC control system controls the motor to stop, and the solenoid valve 1 (three-position four-way reversing valve) is forward-conducting. At this time, the pneumatic cylinder 1 and the pneumatic cylinder 2 are respectively pushed The suction cup moves downwards. When the suction cup presses the answer booklet, the pressure sensor on the suction cup sends a signal to the PLC control system. The second solenoid valve (two-position three-way reversing valve) is turned on, and the suction cup sucks tightly to the side of the answer booklet, which is controlled by PLC. The system controls and controls the reverse conduction of the solenoid valve, and the pneumatic cylinder drives the suction cup to lift the answer booklet, and then the solenoid valve returns to the normal position, and the pneumatic cylinder stops. When the motor rotates forward, the suction cup holder moves to the right along the suction moving slide rail through the suction moving pulley and the suction moving conveyor belt, and the answer booklet is quickly moved to the clamping position, the solenoid valve two is closed, and the suction cup releases the answer booklet.

As shown in Figure 14, when the sensor 2 detects that the adsorption moving mechanism reaches the clamping position, it sends a signal to the PLC control system. The PLC control system controls the motor 1 to stop, and at the same time the motor 2 starts, and the clamping moving mechanism starts to work. The function of the moving mechanism is to clamp the hard edge of the answer booklet and move the answer booklet to the scanning area. The second motor rotates forward and moves the clamping moving mechanism to the clamping position through the clamping and moving pulley and the clamping and moving conveyor belt. Sensor two detects After the clamping moving mechanism reaches the clamping position, it sends a signal to the PLC control system, and the PLC control system controls the motor 2 to stop, the solenoid valve 3 is forward-directed, the pneumatic cylinder 3 pushes the pneumatic clamp to clamp the answer booklet, the motor 2 reverses, and the clamp passes The answer booklet is moved to the scanning area by holding the moving pulley, the clamping moving conveyor belt and the pneumatic clamp. At this time, the side of the answer book that turns pages is directly under the suction cup. After the sensor three detects that the clamping and moving mechanism is in place, it sends a signal to the PLC control system. The PLC controls the camera to scan the cover, and at the same time the adsorption and movement mechanism works again. At this time, the function of the adsorption and movement mechanism is to suck up the cover, and the PLC controls the solenoid valve to guide Connected, the first pneumatic cylinder and the second pneumatic cylinder drive the suction cup to move downward. After the suction cup presses the answer booklet, the pressure sensor sends a signal to the PLC control system. , the pneumatic cylinder moves in reverse to lift the cover, and at the same time, the PLC controls the electromagnet in the anti-retraction mechanism 1 to power off, the electromagnet is separated from the iron sheet, the spring drives the swing arm to rotate, the pressure plate is pressed down to touch the answer booklet to prevent adhesion, and then the voltage is turned on The board is reset, and the page-turning and smoothing mechanism starts to work. When the leveling frame reaches the bottom of the suction cup, the solenoid valve 2 closes the suction cup to release the cover, and the motor 3 reverses through the page-turning pulley and the page-turning conveyor belt to drive the page-turning and smoothing mechanism along the page. The rails move and the cover of the answer booklet is fully opened. The electromagnet of the anti-re-suction mechanism 2 is powered off, the pressure plate presses the cover that has just been turned over, and the motor 3 reverses through the page-turning pulley and the page-turning conveyor belt to drive the page-turning and smoothing mechanism to move to the left along the page-turning slide rail, turning The page smoothing mechanism returns to the starting position. After the sensor four detects the page-turning and smoothing mechanism, it sends a signal to the PLC control system, and the PLC controls the camera to start scanning the first page. After the scanning is completed, the pneumatic cylinders 1 and 2 in the adsorption moving mechanism push the suction cup to pick up the first page of paper, and at the same time, the PLC controls the electromagnet in the anti-resuction mechanism 1 to power off, the electromagnet is separated from the iron sheet, and the spring drives the swing arm to rotate , press the pressure plate down to touch the answer booklet to prevent sticking, then turn on the voltage plate to reset, the page-turning and smoothing mechanism starts to work, when the leveling frame reaches the bottom of the suction cup, the solenoid valve 2 closes the suction cup to release the first page, and the motor 3 reverses to pass the page turning The pulley and the page-turning conveyor belt drive the page-turning and smoothing mechanism to move along the page-turning guide rails to completely open the first page of the answer booklet. The electromagnet of the anti-re-suction mechanism 2 is powered off, the pressure plate presses the first page that has just been turned, and the motor 3 reverses through the page-turning pulley and the page-turning conveyor belt to drive the page-turning and smoothing mechanism to move to the left along the page-turning slide rail , the page turning and smoothing mechanism returns to the initial position. In such a cycle, after the scanning of one book is completed, the PLC controls the motor three to rotate the clamping moving mechanism to move to the right along the clamping moving slide rail, and moves the answer booklet to the inclined slideway. At this time, the sensor five detects that the clamping moving mechanism is in place. , send a signal to the PLC control system, the PLC controls the solenoid valve three reverse guide pneumatic cylinders three to drive the pneumatic clamp to release, and the answer booklet slides down the slide and falls into the storage box. After scanning, the computer uses image recognition technology to extract the course information and class information on the first page, and generates a folder; uses image recognition technology to extract the candidate information on the first page, and names the document with the candidate's name and student number , and stored in a folder named after course information and class information, and the extracted pictures are converted into PDF documents and saved. This not only saves the storage space of the files, but also makes it very convenient to retrieve and consult the answer booklet.

Claims (10)

1. a kind of automatic high-efficiency answer volume scanning means, including rack, collection device, control system, information acquisition system, It is characterized in that: further including absorption mobile mechanism, clamp moving mechanism, page turning floating mechanism, preventing suction again mechanism；

The absorption mobile mechanism is moved to clip position for picking up an answer volume and picking up answer volume, and answer volume is sucked The side of page turning, starts every page；

The clamp moving mechanism is used to clamp the side that glue is conferred titles of nobility in answer, and the movement of answer volume is made to one side of answer volume page turning In the underface of the adsorbent equipment of absorption mobile mechanism；After the completion of the scanning of answer volume, answer volume is moved in slideway；

The page turning smoothes out mechanism and is used for after certain one page of answer volume is started, and page turning smoothes out mechanism and smoothes out it backward；

The preventing suction again mechanism is for touching the answer page started, to prevent there are stick to each others when vacuum between the paper of page two；

Firstly, absorption mobile mechanism moves on to above answer volume, an answer volume is picked up to clip position；Then clamp moving mechanism Clip position is moved to, hard-edge is clamped and is moved to scanning area；Information acquisition system scans the page, and absorption mobile mechanism is again Task starts the scanned page, while preventing suction again mechanism works, and pressing plate touches that page of answer volume started；Frame is smoothed out to move Sucker unclamps when moving clip position, smoothes out frame and continues to move right；Page turning smoothes out reset, scans again, an answer After the completion of volume scanning, absorption mobile mechanism resets, and clamp moving mechanism transfers answer volume to automatic collecting device.

2. a kind of automatic high-efficiency answer volume scanning means according to claim 1, it is characterised in that: the preventing suction again machine Structure includes rack, preventing suction again shaft one, swing arm, pressing plate, spring, iron block, electromagnet, and swing arm one end is fixedly connected with iron block, another End connection pressing plate, swing arm is flexibly connected on the rack close to one end of middle and lower part iron block by preventing suction again shaft one, when PLC is controlled Spring pulls swing arm iron block end to move upwards when device control electromagnet power-off, while moving downward with dynamic pressure plate, and pressing plate touching is answered Inscribe volume.

3. a kind of automatic high-efficiency answer volume scanning means according to claim 2, it is characterised in that: the preventing suction again machine Structure further includes that preventing suction again shaft two, pressing plate and swing arm are flexibly connected by preventing suction again shaft two.

4. a kind of automatic high-efficiency answer volume scanning means according to claim 2 or 3, it is characterised in that: described anti-multiple It inhales there are two mechanism tools, one is used to touch answer volume, the question-answering paper not scanned is pushed down after destroying page stick to each other, another For pushing down the question-answering paper being scanned.

5. a kind of automatic high-efficiency answer volume scanning means according to claim 1, it is characterised in that: the absorption movement Mechanism includes adsorbent equipment, absorption fixation device, moves up and down device, moves left and right device, and adsorbent equipment is for being sucked answer Volume, for absorption fixation device for fixing adsorbent equipment, the device that moves up and down is described for pushing adsorbent equipment to move up and down Move left and right device for left and right transport answer volume.

6. a kind of automatic high-efficiency answer volume scanning means according to claim 5, it is characterised in that: the adsorbent equipment Including sucker, the absorption fixation device includes suction cup carrier, and the device that moves up and down includes pneumatic cylinder, described to move left and right dress It sets including sliding block, sliding rail, conveyer belt, belt wheel, shaft fixing block, sliding track holder, motor one, motor cabinet, shaft coupling, shaft, The suction cup carrier is inverted U, and the mobile sliding block of absorption is respectively equipped on the inside of both sides and absorption moving conveyor belt fixed block, suction cup carrier are logical It crosses absorption moving conveyor belt fixed block to be fixed on absorption moving conveyor belt, be moved by the mobile sliding block of two absorption in two absorption Smooth sliding on dynamic sliding rail, pneumatic cylinder are fixed on the cross bar of suction cup carrier, and the end of pneumatic cylinder piston rod is connected with sucker, sucker It is inside fixed with pressure sensor, sucker is connected to snorkel, can pick up answer volume after sucker ventilation.

7. a kind of automatic high-efficiency answer volume scanning means according to claim 6, it is characterised in that: the pneumatic cylinder has Two, correspondingly the sucker also there are two so that absorption it is more stable.

8. a kind of automatic high-efficiency answer volume scanning means according to claim 1, it is characterised in that: the clamping movement Mechanism includes conveyer belt, belt wheel, motor two, motor base, sliding track holder, sliding rail, sliding block, pneumatic cylinder, shaft fixing block, gas Dynamic folder, the pneumatic clamps include that strap, mobile clamping plate, mobile clamping plate transverse slat, pneumatic cylinder, pneumatic clamps sliding block, pneumatic clamps are sliding Rail, strap are 7 types, and bottom both ends are respectively fixed with the mobile sliding block of clamping, and it is solid that middle part is fixed with clamping moving conveyor belt Determine block, strap both sides are additionally provided with pneumatic clamps sliding rail, and mobile clamping plate is 7 types, and both ends are fixed with pneumatic clamps sliding block, mobile clamping plate It is covered on above strap, it is horizontal equipped with the mobile clamping plate perpendicular to mobile clamping plate riser that mobile clamping plate end is moved away from clamping plate Plate, pneumatic clamps sliding block can do spaced motion on pneumatic clamps sliding rail, and pneumatic cylinder is fixed on conveyer belt fixed block and mobile clamping plate Between transverse slat, move up and down mobile clamping plate.

9. a kind of automatic high-efficiency answer volume scanning means according to claim 1, it is characterised in that: the page turning smoothes out Mechanism includes smoothing out frame, motor base, motor, shaft coupling, shaft, shaft fixing block, four belt wheels, two conveyer belts, two Sliding rail, sliding track holder, floating frame are inverted U, are respectively equipped with page turning sliding block and page turning conveyer belt fixed block on the inside of both sides, smooth out Frame is fixed on a moving belt by page turning conveyer belt fixed block, is steadily slided on two page turning sliding rails by two page turning sliding blocks It is dynamic.

10. a kind of automatic high-efficiency answer volume scanning means according to claim 1, it is characterised in that: the control system System includes PLC control system, solenoid valve one, solenoid valve two, solenoid valve three, pressure sensor, sensor one, and sensor two passes Sensor three, sensor four, sensor five, sensor send induction information to PLC control system, and PLC regulates and controls each solenoid valve Movement, the solenoid valve one, solenoid valve three are three position four-way directional control valve, and solenoid valve two is two-bit triplet reversal valve.