A device for detecting errors and omissions in publication printing

Abstract

The invention discloses an error and omission detection device for publication printing, which relates to the technical field of publication printing detection, and comprises a placing rack, one side of which is provided with an error and omission detection mechanism, a plurality of cameras are equidistantly installed at the bottom of the connecting block, a controller is installed at the top of the connecting block, three baffles are movably penetrated at the bottom of the rectangular plate, two slide grooves are provided with sliders inside, a sliding hole is opened at the top of the rectangular plate, two symmetrical servo motors are installed at the top of the inner wall of the sliding hole, the insides of the two mounting seats are rotatably connected with a single-head threaded rod through a bearing, and an electric push rod is installed on the upper side of each mounting rack. The invention can detect and sort out misprinted publications, missed publications and good publications after printing by arranging the error and omission detection mechanism, which can effectively adapt to the printed product detection operation of the publication printing factory, thereby effectively ensuring the quality of the publications entering the market.

Description

Technical Field

[0001] The invention relates to the technical field of publication printing detection, in particular to an error and omission detection device for publication printing. Background Art

[0002] Publications refer to published products that store knowledge and information for the purpose of dissemination and have a certain material form. Publication printing includes typesetting, plate making, printing, binding and other printing business activities related to the binding and cover of newspapers, periodicals, books, maps, New Year paintings, pictures, calendars, picture albums, audio-visual products, and electronic publications. Existing publications need to be checked for errors and omissions during the printing process to ensure the quality of the published products.

[0003] After printing, existing publications will use a conveyor belt to transport the printed publications to a collection location. However, errors and omissions need to be detected during the transportation of the printed materials. However, due to the large number of printed publications, traditional manual detection methods will not be able to meet the needs of publication printing error and omission detection, which will lead to unqualified publications entering the market, affecting the production effect of publication printing factories.

[0004] Therefore, it is necessary to propose a new error detection device for publication printing so as to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a device for detecting errors and omissions in publication printing, so as to solve the problem raised in the above-mentioned background technology that the existing publication printing factories print a large number of publications, so the traditional manual detection method cannot meet the needs of the error and omission detection work of publication printing, that is, publications of unqualified quality will flow into the market, which will affect the production effect of the publication printing factories.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an error and omission detection device for publication printing, comprising a placement rack, one side of which is provided with an error and omission detection mechanism;

[0007] The error and omission detection mechanism comprises a placing table and a rectangular plate, a connecting block is fixed inside the placing table, a plurality of cameras are equidistantly installed on the bottom of the connecting block, a controller is installed on the top of the connecting block, three baffles are movably penetrated through the bottom of the rectangular plate, wherein two opposite sides of the baffles are provided with sliding grooves, and sliders are provided inside the two sliding grooves, a sliding hole is provided on the top of the rectangular plate, two symmetrical servo motors are installed on the top of the inner wall of the sliding hole, and driving gears are installed on the output ends of the two servo motors, and two symmetrical mounting seats are installed on the top of the inner wall of the sliding hole, and single-head threaded rods are rotatably connected to the inside of the two mounting seats through bearings, and driven gears are fixed to the round head ends of the two single-head threaded rods, and three mounting racks are installed at the bottom of the rectangular plate, and an electric push rod is installed on the upper side of each mounting rack, and a guide plate is provided on the side of the rectangular plate close to the placing rack, and mounting blocks are fixed on the front surface and rear surface of the guide plate.

[0008] Preferably, the plurality of cameras are electrically connected to the controller, the rectangular plate is located on one side of the placement rack, the two sliders are located inside the slide hole, and the teeth of the two driving gears are respectively meshed with the teeth of the two driven gears.

[0009] Preferably, the top of the telescopic end of each electric push rod is respectively installed with the bottom of each baffle, the two servo motors are electrically connected to the controller, and the three electric push rods are electrically connected to the controller.

[0010] Preferably, a guide shell is fixed to the front surface of the rectangular plate, the rear surface of the rectangular plate and one side of the rectangular plate.

[0011] Preferably, a conveying mechanism is provided on the top of the placement rack, and the conveying mechanism includes two T-blocks, both of which are fixed on the top of the placement rack in a symmetrical state, and the bottom of the placement table is slidably embedded between the upper sides of the two T-blocks, and two transmission roller bodies are rotatably connected between the opposite sides of the two T-blocks, one end of one of the transmission roller bodies movably passes through the surface of one of the T-blocks, and a conveyor belt body is transmission-connected between the outer surfaces of the two transmission roller bodies, and a plurality of auxiliary rods are equidistantly distributed and rotationally connected between the opposite sides of the two T-blocks, and the plurality of auxiliary rods are located between the outer surfaces of the two transmission roller bodies.

[0012] Preferably, a first motor is installed on the front surface of one of the T-blocks, and the output end of the first motor is installed on one end of one of the transmission roller bodies. Two gear-type transmission rollers are rotatably connected between the opposite sides of the two T-blocks, and one end of one of the gear-type transmission rollers can move through the surface of one of the T-blocks. A plate conveyor belt is transmission-connected between the two gear-type transmission rollers.

[0013] Preferably, a plurality of groups of shift plates are fixed at equal intervals on the surface of the plate conveyor belt, a second motor is installed on the front surface of one of the T-blocks, two of the second motors are electrically connected to the controller, the output end of the second motor is installed on one of the gear-type transmission rollers, the two mounting blocks are respectively screwed to the opposite sides of the two T-blocks, and a plurality of rectangular blocks are fixed at equal intervals between the opposite sides of the two T-blocks.

[0014] Preferably, a drying mechanism is provided on the top of the conveying mechanism, and the drying mechanism includes a heating box and a control switch. A plurality of circular tubes are evenly distributed and fixedly penetrate the bottom of the inner wall of the heating box. A protective shell is provided at the bottom of the heating box, and the protective shell is located between two T-blocks. The output end of each circular tube is fixedly penetrated through the top of the protective shell. Two mounting holes are provided on one side of the heating box, and circular ring blocks are provided inside the two mounting holes.

[0015] Preferably, a heating tube is fixed between the insides of the two circular blocks, and a plurality of stabilizing seats are fixed at equal intervals on the outer surface of the heating tube, and the bottom of each stabilizing seat is in contact with the bottom of the inner wall of the heating box. An air inlet pipe is fixedly passed through one side of the heating box, and an arc plate is fixed to the bottom of the inner wall of the heating box. A fan is installed on the top of the protective shell, and a connecting pipe is installed on the output end of the fan.

[0016] Preferably, the output end of the connecting pipe is connected to the input end of the air inlet pipe, the input end of the fan is installed with a dust screen, the control switch is installed on the front surface of one of the T-blocks, the control switch is connected to the heating tube through a wire, the fan is electrically connected to the controller, a box cover is installed on the top of the heating box, and a stabilizing frame is installed on the front and rear surfaces of the placement rack, and the top of the stabilizing frame is fixed to the bottom of the rectangular plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can detect and sort out misprinted publications, missed publications and good publications after printing by setting up an error and omission detection mechanism, which can effectively adapt to the printed product detection operation of the publication printing factory, thereby effectively ensuring the quality of the publications entering the market. When it is necessary to perform a detection operation on the printed publications, the cooperation of the controller and the camera can be directly used to detect whether the printed publications arriving at the end of the conveyor belt are misprinted, missed and good publications. Subsequently, under the action of the guide plate, the detected publications can be guided to the rectangular plate. Then, under the cooperation of the controller, the electric push rod, the driving gear, the driven gear, the mounting seat, the single-head threaded rod, the slider, the guide shell and the servo motor, the detected publications can be sorted and the sorted publications can be guided to the corresponding publication collection frame.

[0019] 2. The present invention can convey the publications delivered from the output end of the publication printing machine to the inside of the placement table by setting a conveying mechanism. When the printed publications need to be conveyed, the publications on the conveyor belt body can be moved by directly utilizing the cooperation of the controller, the first motor, the drive roller body, the auxiliary rod, and the conveyor belt body. At the same time, with the cooperation of the controller, the second motor, the gear drive roller, the plate conveyor belt, and the paddle, the publications on the conveyor belt can be moved more stably.

[0020] 3. The present invention can dry the printed publications by setting up a drying mechanism. When the printed publications need to be dried, the gas inside the heating box can be heated by directly utilizing the cooperation of the control switch and the heating tube. Subsequently, the gas entering the heating box can be heated by utilizing the cooperation of the controller, the fan, the dust screen, the connecting tube, the round tube and the air inlet pipe, and the heated gas can be guided to the inside of the protective shell. Then, under the action of the hot gas, the publications transported on the conveyor belt body can be dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a device for detecting errors and omissions in publication printing according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a device for detecting errors and omissions in publication printing according to the present invention from a top view;

[0023] Figure 3 It is a partial three-dimensional diagram of an error and omission detection mechanism of an error and omission detection device for publication printing according to the present invention, viewed from a bottom angle;

[0024] Figure 4 The invention relates to a device for detecting errors and omissions in publication printing. Figure 3The enlarged stereogram at A in the middle;

[0025] Figure 5 It is a partial three-dimensional diagram from a top view of an error and omission detection mechanism of an error and omission detection device for publication printing according to the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of a placement table, a connection block, a camera and a controller of a device for detecting errors and omissions in publication printing according to the present invention;

[0027] Figure 7 It is a partial three-dimensional diagram of the conveying mechanism of a device for detecting errors and omissions in publication printing according to the present invention;

[0028] Figure 8 It is a partial three-dimensional diagram of a drying mechanism of a device for detecting errors and omissions in publication printing according to the present invention;

[0029] Fig. 9 This is a partial three-dimensional view from another angle of the drying mechanism of the error and omission detection device for publication printing of the present invention.

[0030] In the figure: 1. Placement rack; 2. Error detection mechanism; 201. Placement table; 202. Connection block; 203. Camera; 204. Controller; 205. Rectangular plate; 206. Baffle; 207. Slide; 208. Slider; 209. Slide hole; 210. Servo motor; 211. Driving gear; 212. Mounting seat; 213. Single-head threaded rod; 214. Driven gear; 215. Guide shell; 216. Mounting rack; 217. Electric push rod; 218. Guide plate; 219. Mounting block; 3. Conveying mechanism; 301. T-block; 302. Transmission roller body ; 303, conveyor belt body; 304, auxiliary rod; 305, first motor; 306, gear-type transmission roller; 307, plate conveyor belt; 308, paddle plate; 309, second motor; 310, rectangular block; 4, drying mechanism; 401, heating box; 402, round tube; 403, mounting hole; 404, circular ring block; 405, heating tube; 406, stabilizing seat; 407, air inlet pipe; 408, arc plate; 409, fan; 410, connecting pipe; 411, dust net; 412, control switch; 413, box cover; 414, protective shell; 5, stabilizing frame. Implementation

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 9 As shown, the present invention provides a technical solution: an error and omission detection device for publication printing, comprising a placement rack 1, and an error and omission detection mechanism 2 is arranged on one side of the placement rack 1;

[0033] The error detection mechanism 2 includes a placement table 201 and a rectangular plate 205. A connection block 202 is fixed inside the placement table 201. A plurality of cameras 203 are evenly spaced and installed at the bottom of the connection block 202. A controller 204 is installed on the top of the connection block 202. Three baffles 206 are movably penetrated at the bottom of the rectangular plate 205. Two baffles 206 are provided with slide grooves 207 on opposite sides of the two baffles 206. Slide blocks 208 are provided inside the two slide grooves 207. A slide hole 209 is provided on the top of the rectangular plate 205. Two symmetrical servo motors 210 are installed on the top of the inner wall of the slide hole 209. The two The output end of the servo motor 210 is installed with a driving gear 211, and two symmetrical mounting seats 212 are installed on the top of the inner wall of the sliding hole 209. The interiors of the two mounting seats 212 are rotatably connected with single-head threaded rods 213 through bearings, and the round head ends of the two single-head threaded rods 213 are fixed with driven gears 214. Three mounting frames 216 are installed at the bottom of the rectangular plate 205, and an electric push rod 217 is installed on the upper side of each mounting frame 216. A guide plate 218 is provided on the side of the rectangular plate 205 close to the placement rack 1, and mounting blocks 219 are fixed to the front and rear surfaces of the guide plate 218.

[0034] according to Figure 1 , Figure 2 and Figure 4-Figure 6 As shown, multiple cameras 203 are electrically connected to the controller 204, the rectangular plate 205 is located on one side of the placement rack 1, the two sliders 208 are both inside the slide hole 209, and the teeth of the two driving gears 211 are respectively meshed with the teeth of the two driven gears 214, so that the servo motor 210 can drive the corresponding single-head threaded rod 213 to rotate with the cooperation of the driving gear 211, the driven gear 214 and the mounting seat 212.

[0035] according to Figure 3-Figure 6 As shown, the top of the telescopic end of each electric push rod 217 is respectively installed with the bottom of each baffle 206, the two servo motors 210 are electrically connected to the controller 204, and the three electric push rods 217 are electrically connected to the controller 204, so that the baffle 206 connected thereto can be driven to move vertically up and down with the cooperation of the electric push rod 217, the rectangular plate 205 and the mounting frame 216.

[0036] according to Figure 2 and Figure 5As shown, a guide shell 215 is fixed to the front surface of the rectangular plate 205, the rear surface of the rectangular plate 205 and one side of the rectangular plate 205. Under the action of the guide shell 215, the sorted printed publications can be guided away.

[0037] according to Figure 1 , Figure 6 and Figure 7 As shown, a conveying mechanism 3 is arranged on the top of the placement rack 1, and the conveying mechanism 3 includes two T-blocks 301, and the two T-blocks 301 are fixed on the top of the placement rack 1 and are in a symmetrical state. The bottom of the placement table 201 is slidably embedded between the upper sides of the two T-blocks 301, and two transmission roller bodies 302 are rotatably connected between the opposite sides of the two T-blocks 301, one end of one of the transmission roller bodies 302 movably passes through the surface of one of the T-blocks 301, and a conveyor belt body 303 is transmission-connected between the outer surfaces of the two transmission roller bodies 302, and a plurality of auxiliary rods 304 are equidistantly distributed and rotationally connected between the opposite sides of the two T-blocks 301, and the plurality of auxiliary rods 304 are located between the outer surfaces of the two transmission roller bodies 302, so that the conveyor belt body 303 can be driven to rotate with the cooperation of the first motor 305, the auxiliary rod 304 and the transmission roller body 302.

[0038] according to Figure 2 and Figure 7 As shown, a first motor 305 is installed on the front surface of one of the T-blocks 301, and the output end of the first motor 305 is installed with one end of one of the transmission roller bodies 302. Two gear-type transmission rollers 306 are rotatably connected between the opposite sides of the two T-blocks 301, and one end of one of the gear-type transmission rollers 306 movably passes through the surface of one of the T-blocks 301. A plate conveyor belt 307 is transmission-connected between the two gear-type transmission rollers 306. With the cooperation of the plate conveyor belt 307, the paddle 308 and the conveyor belt body 303, the printed publications on the conveyor belt body 303 can be stably conveyed.

[0039] according to Figure 2 , Figure 6 and Figure 7As shown, a plurality of groups of shift plates 308 are fixedly and evenly distributed on the surface of the plate conveyor belt 307, and the number of each group of shift plates 308 is two, a second motor 309 is installed on the front surface of one T-block 301, the two second motors 309 are electrically connected to the controller 204, the output end of the second motor 309 is installed with one of the gear-type transmission rollers 306, and two mounting blocks 219 are respectively screwed to the opposite sides of the two T-blocks 301, and a plurality of rectangular blocks 310 are fixedly and evenly distributed between the opposite sides of the two T-blocks 301, and the two T-blocks 301 can be stably fixed together under the action of the rectangular blocks 310, that is, it is ensured that the conveying mechanism 3 can perform the conveying operation normally.

[0040] according to Figure 1 , Figure 2 , Figure 8 and Fig. 9 As shown, a drying mechanism 4 is arranged on the top of the conveying mechanism 3, and the drying mechanism 4 includes a heating box 401 and a control switch 412. A plurality of circular tubes 402 are evenly distributed and fixedly penetrate the bottom of the inner wall of the heating box 401. A protective shell 414 is arranged on the bottom of the heating box 401, and the protective shell 414 is located between two T-blocks 301. The output end of each circular tube 402 is fixedly penetrated through the top of the protective shell 414. Two mounting holes 403 are provided on one side of the heating box 401, and circular blocks 404 are arranged inside the two mounting holes 403. With the cooperation of the circular blocks 404 and the stabilizing seat 406, the heating tube 405 can perform a stable heating operation.

[0041] according to Figure 2 , Figure 8 and Fig. 9 As shown, a heating tube 405 is fixed between the inside of the two circular blocks 404, and a plurality of stabilizing seats 406 are fixed at equal intervals on the outer surface of the heating tube 405, and the bottom of each stabilizing seat 406 is in contact with the bottom of the inner wall of the heating box 401, and an air inlet pipe 407 is fixedly passed through one side of the heating box 401, and an arc plate 408 is fixed to the bottom of the inner wall of the heating box 401, and a fan 409 is installed on the top of the protective shell 414, and a connecting pipe 410 is installed on the output end of the fan 409, so that the gas in the filtered environment can be guided to the inside of the heating box 401 with the cooperation of the fan 409, the connecting pipe 410, the dustproof net 411 and the air inlet pipe 407.

[0042] according to Figure 2 and Figure 7-Figure 9As shown, the output end of the connecting tube 410 is connected to the input end of the air inlet pipe 407, the input end of the fan 409 is installed with a dustproof net 411, the control switch 412 is installed on the front surface of one of the T-blocks 301, the control switch 412 is connected to the heating tube 405 through a wire, the fan 409 is electrically connected to the controller 204, a box cover 413 is installed on the top of the heating box 401, and a stabilizing frame 5 is installed on the front and rear surfaces of the placement rack 1, and the top of the stabilizing frame 5 is fixed to the bottom of the rectangular plate 205, so that under the action of the stabilizing frame 5, the discharge end of the guide plate 218 can be prevented from being separated from the feed end of the rectangular plate 205.

[0043] The effect achieved by the entire mechanism is: when it is necessary to detect errors and omissions in the printed publications, the error and omission detection device is directly connected to the output end of the publication printing machine, and then the control switch 412 and the controller 204 (i.e., the PLC controller) are connected to the external power supply, and then the controller 204 is turned on, and the data such as the good publication pictures, the wrongly printed publication pictures and the omitted publication pictures are stored in the controller 204, and then the use program of the controller 204 is set. When everything is ready, the publications delivered from the output end of the publication printing machine are directly guided to the conveyor belt body 303. At the same time, the controller 204 is used to start the first motor 305 and the second motor 309. At this time, the first motor started The motor 305 will drive the transmission roller body 302 connected thereto to rotate, and the rotating transmission roller body 302 will directly drive the conveyor belt body 303 to rotate in cooperation with another transmission roller body 302 and a plurality of auxiliary rods 304. At this time, the rotating conveyor belt body 303 will directly drive the publications on the surface of the conveyor belt body 303 to move, and the started second motor 309 will also drive the gear transmission roller 306 connected thereto to rotate, and the rotating gear transmission roller 306 will directly drive the plate conveyor belt 307 to rotate in cooperation with another gear transmission roller 306, and the rotating plate conveyor belt 307 will directly drive all the group dial plates 308 connected thereto to move. When all the group dial plates 308 move, each group of moving groups 308 will be moved. The paddle plate 308 will directly and stably drive each printed publication to move with the cooperation of the rotating conveyor belt body 303. At the same time, the heating tube 405 is directly started by the control switch 412, and the fan 409 is started by the controller 204. At this time, the started heating tube 405 will directly heat the gas in the heating box 401, and the started fan 409 will also directly guide the filtered gas in the environment to the inside of the connecting tube 410 with the cooperation of the dustproof net 411. Then, the gas entering the connecting tube 410 will be directly transported to the inside of the air inlet pipe 407, and then the gas will be directly transported to the inside of the heating box 401. When the gas enters the inside of the heating box 401, the gas will be directly 408 collides and diverts, and then the diverted gas will fully contact the surface of the heating tube 405. When the gas continuously enters the interior of the heating box 401, the heated gas will be directly diverted and introduced into the interior of each circular tube 402. Then, the hot gas entering the interior of each circular tube 402 will all be diverted to the interior of the protective shell 414. Then, the hot gas entering the interior of the protective shell 414 will directly dry each printed publication moving on the conveying mechanism 3. When the dried publication moves to the placement table 201 at the end of the conveying mechanism 3, the controller 204 will directly start all the cameras 203. At this time, the multiple cameras 203 that are started will shoot the publications inside the placement table 201.And all the captured image data are transmitted to the controller 204 in the form of electrical signals. When the controller 204 receives all the image data, the controller 204 will compare and analyze each received image data with the image data previously stored by the controller 204. When all the image data detected by the controller 204 are correct, the controller 204 will directly start one of the electric push rods 217. At this time, the started electric push rod 217 will directly drive the baffle 206 to move vertically downward with the cooperation of the corresponding mounting frame 216. When the top of the baffle 206 and the top of the rectangular plate 205 are on the same horizontal plane, the controller 204 will directly pause the started electric push rod 217. After the printed publication is detected, it will be directly conveyed out at the end of the conveyor belt body 303 and conveyed to the guide plate 218. Then, under the action of the publication's own gravity, it will be directly guided to the rectangular plate 205, and then guided to the corresponding guide shell 215, and then guided out. When the printed publication is moved out of the corresponding guide shell 215, the controller 204 will directly reset the corresponding baffle 206 to the initial position through the cooperation of one of the electric push rods 217 and the mounting frame 216. When the baffle 206 is reset to the initial position, the controller 204 will directly close one of the electric push rods 217. When one or more image data of misprinted publications appear in all the image data detected by the controller 204, At this time, the controller 204 will not start the middle electric push rod 217 first. When the printed publication moves to the rectangular plate 205 and directly stays on the rectangular plate 205 under the action of one of the baffles 206, the controller 204 will directly start the middle electric push rod 217, and the started electric push rod 217 will directly drive the corresponding baffle 206 to move vertically downward with the cooperation of the corresponding mounting frame 216. When the top of the baffle 206 and the top of the rectangular plate 205 are in the same horizontal plane, the controller 204 will directly pause the start of the middle electric push rod 217, and then the controller 204 will directly start the corresponding servo motor 210. The started servo motor 210 will directly drive the corresponding The driving gear 211 connected thereto rotates, and the rotating driving gear 211 directly drives the single-threaded rod 213 to rotate under the cooperation of the corresponding mounting seat 212 and the driven gear 214, and the rotating single-threaded rod 213 directly drives the corresponding slider 208 to move under the cooperation of the sliding hole 209. At this time, the moving slider 208 directly pushes the publications on the rectangular plate 205 to the corresponding guide shell 215, and finally guides them out from the guide shell 215. When the publications are guided out, the controller 204 directly resets the corresponding baffle 206 to the initial position under the cooperation of the middle electric push rod 217 and the corresponding mounting frame 216. After the baffle 206 is reset to the initial position,The controller 204 will directly close the middle electric push rod 217. Similarly, when one or more missing publications appear in all the image data detected by the controller 204, the controller 204 will also guide the missing publications out of another guide shell 215 under the cooperation of another electric push rod 217, mounting frame 216, baffle 206, slide hole 209, driving gear 211, driven gear 214, mounting seat 212, single-threaded rod 213, slider 208 and another servo motor 210.

[0044] Among them, the camera 203, the controller 204, the servo motor 210, the electric push rod 217, the first motor 305, the second motor 309, the heating tube 405, the fan 409 and the control switch 412 are all public technologies and will not be explained in detail here.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting errors and omissions in publication printing, comprising a placement frame (1), characterized in that: An error and omission detection mechanism (2) is provided on one side of the placement rack (1); The error and omission detection mechanism (2) comprises a placement table (201) and a rectangular plate (205); a connection block (202) is fixed inside the placement table (201); a plurality of cameras (203) are equidistantly installed on the bottom of the connection block (202); a controller (204) is installed on the top of the connection block (202); three baffles (206) are movably penetrated through the bottom of the rectangular plate (205); and the three baffles (206) are respectively located on the top three sides of the rectangular plate (205); two baffles (207) are provided on opposite sides of two of the baffles (206); a slider (208) is provided inside the two sliders (207); a sliding hole (209) is provided on the top of the rectangular plate (205); and two sliders (208) are installed on the top of the inner wall of the sliding hole (209). Two symmetrical servo motors (210) are provided, and the output ends of the two servo motors (210) are both equipped with driving gears (211). Two symmetrical mounting seats (212) are installed on the top of the inner wall of the slide hole (209). The interiors of the two mounting seats (212) are both rotatably connected to single-head threaded rods (213) through bearings. The round ends of the two single-head threaded rods (213) are both fixed with driven gears (214). Three mounting frames (216) are installed at the bottom of the rectangular plate (205), and an electric push rod (217) is installed on the upper side of each mounting frame (216). A guide plate (218) is provided on the side of the rectangular plate (205) close to the placement frame (1), and mounting blocks (219) are fixed to the front and rear surfaces of the guide plate (218).

2. The publication printing error and omission detection device according to claim 1, characterized in that: The plurality of cameras (203) are electrically connected to the controller (204), the rectangular plate (205) is located on one side of the placement rack (1), the two sliders (208) are located inside the slide hole (209), and the teeth of the two driving gears (211) are respectively meshed with the teeth of the two driven gears (214).

3. The publication printing error and omission detection device according to claim 1, characterized in that: The top of the telescopic end of each electric push rod (217) is respectively mounted on the bottom of each baffle (206), the two servo motors (210) are electrically connected to the controller (204), and the three electric push rods (217) are electrically connected to the controller (204).

4. The apparatus for detecting errors and omissions in publication printing according to claim 1, characterized in that: A flow guide shell (215) is fixed to the front surface of the rectangular plate (205), the rear surface of the rectangular plate (205) and one side of the rectangular plate (205).

5. The apparatus for detecting errors and omissions in publication printing according to claim 1, characterized in that: A conveying mechanism (3) is arranged on the top of the placement rack (1), and the conveying mechanism (3) comprises two T-shaped blocks (301). The two T-shaped blocks (301) are fixed on the top of the placement rack (1) and are in a symmetrical state. The bottom of the placement platform (201) is slidably embedded between the upper sides of the two T-shaped blocks (301). Two transmission roller bodies (302) are rotatably connected between the opposite sides of the two T-shaped blocks (301). One end of one of the transmission roller bodies (302) movably passes through the surface of one of the T-shaped blocks (301). A conveyor belt body (303) is transmission-connected between the outer surfaces of the two transmission roller bodies (302). A plurality of auxiliary rods (304) are equidistantly distributed and rotationally connected between the opposite sides of the two T-shaped blocks (301), and the plurality of auxiliary rods (304) are located between the outer surfaces of the two transmission roller bodies (302).

6. The apparatus for detecting errors and omissions in publication printing according to claim 5, characterized in that: A first motor (305) is installed on the front surface of one of the T-blocks (301), and the output end of the first motor (305) is installed on one end of one of the transmission roller bodies (302). Two gear-type transmission rollers (306) are rotatably connected between opposite surfaces of the two T-blocks (301), one end of one of the gear-type transmission rollers (306) movably passes through the surface of one of the T-blocks (301), and a plate conveyor belt (307) is transmission-connected between the two gear-type transmission rollers (306).

7. The apparatus for detecting errors and omissions in publication printing according to claim 6, characterized in that: A plurality of groups of shifting plates (308) are fixedly and evenly distributed on the surface of the plate conveyor belt (307); a second motor (309) is installed on the front surface of one of the T-blocks (301); the second motor (309) is electrically connected to the controller (204); an output end of the second motor (309) is installed on one of the gear-type transmission rollers (306); two mounting blocks (219) are respectively installed on opposite sides of the two T-blocks (301) by screws; and a plurality of rectangular blocks (310) are fixedly and evenly distributed between opposite sides of the two T-blocks (301).

8. The publication printing error and omission detection device according to claim 5, characterized in that: A drying mechanism (4) is arranged on the top of the conveying mechanism (3), and the drying mechanism (4) comprises a heating box (401) and a control switch (412). A plurality of circular tubes (402) are fixedly penetrated at equal intervals through the bottom of the inner wall of the heating box (401). A protective shell (414) is arranged at the bottom of the heating box (401), and the protective shell (414) is located between two T-shaped blocks (301). The output end of each circular tube (402) is fixedly penetrated through the top of the protective shell (414). Two mounting holes (403) are provided on one side of the heating box (401), and circular ring blocks (404) are arranged inside the two mounting holes (403).

9. The apparatus for detecting errors and omissions in publication printing according to claim 8, characterized in that: A heating tube (405) is fixed between the insides of the two annular blocks (404); a plurality of stabilizing seats (406) are fixed and distributed equidistantly on the outer surface of the heating tube (405); the bottom of each stabilizing seat (406) is in contact with the bottom of the inner wall of the heating box (401); an air inlet pipe (407) is fixedly passed through one side of the heating box (401); an arc plate (408) is fixed to the bottom of the inner wall of the heating box (401); a fan (409) is installed on the top of the protective shell (414); and a connecting pipe (410) is installed at the output end of the fan (409).

10. The publication printing error and omission detection device according to claim 9, characterized in that: The output end of the connecting pipe (410) is connected to the input end of the air inlet pipe (407); the input end of the fan (409) is installed with a dust screen (411); the control switch (412) is installed on the front surface of one of the T-blocks (301); the control switch (412) is connected to the heating pipe (405) via a wire; the fan (409) is electrically connected to the controller (204); a box cover (413) is installed on the top of the heating box (401); and a stabilizing frame (5) is installed on the front surface and the rear surface of the placement rack (1); the top of the stabilizing frame (5) is fixed to the bottom of the rectangular plate (205).

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