CN112721441B - Printing quality detection device of printing machine - Google Patents
Printing quality detection device of printing machine Download PDFInfo
- Publication number
- CN112721441B CN112721441B CN202011538008.5A CN202011538008A CN112721441B CN 112721441 B CN112721441 B CN 112721441B CN 202011538008 A CN202011538008 A CN 202011538008A CN 112721441 B CN112721441 B CN 112721441B
- Authority
- CN
- China
- Prior art keywords
- printing
- platform
- quality
- printing machine
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000007689 inspection Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 16
- 238000007711 solidification Methods 0.000 claims description 7
- 230000008023 solidification Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 241000258971 Brachiopoda Species 0.000 claims 1
- 230000007723 transport mechanism Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 9
- 230000032258 transport Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000001459 lithography Methods 0.000 abstract 1
- 238000012372 quality testing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000001133 acceleration Effects 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 241000405070 Percophidae Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/0443—Drying sheets, e.g. between two printing stations after printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/044—Drying sheets, e.g. between two printing stations
- B41F23/045—Drying sheets, e.g. between two printing stations by radiation
- B41F23/0453—Drying sheets, e.g. between two printing stations by radiation by ultraviolet dryers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0483—Drying combined with cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The utility model relates to a printing quality detection device of printing machine, it is including setting up the four group's quality inspection devices in four-color printing machine, each quality inspection device and each printing roller interval arrangement of four-color printing machine, the quality inspection device just is located corresponding printing roller rear side with the printing roller one-to-one respectively, the quality inspection device is including transporting platform and detecting element, detecting element is located the top of transporting the platform, it is equipped with location material blocking structure on the platform to transport, it transports the mechanism to be equipped with on the platform, location material blocking mechanism is including driving actuating cylinder, the piston rod tip fixedly connected with who drives actuating cylinder blocks the pole. This application has through all setting up a set of quality testing device behind each printing roller, detects the printing quality of every group printing roller respectively, if printing quality goes wrong, the staff can repair and adjust the printing roller and the relevant printing mechanism that produce the problem fast, has promoted the effect to the monitoring degree of lithography apparatus operating condition.
Description
Technical Field
The application relates to the field of printed matter quality detection, in particular to a printing quality detection device of a printing machine.
Background
In the production of paper for book printing and the like, a four-color printing press, which is a lithographic printing method for printing with three primary colors (yellow, magenta, cyan) and black by subtractive color method to transfer a pattern, is generally used. When the printing machine is in printing operation, paper sheets are sequentially conveyed through the printing rollers with printing ink of different colors, and printing operation of different colors is sequentially carried out on the paper sheets. In the actual printing process of the printing roller, the quality of a printed product has certain deviation due to the difference of the printing paper, the printing ink and the temperature and the humidity of the working environment of the printing machine during printing, so that the quality of the printed product needs to be detected.
In the related art, in the process of detecting the quality of the printed matter, the printed paper sheet is generally directly detected by a detection camera, the detection camera shoots patterns printed on the paper sheet and records the patterns into a computer, and the computer compares the pictures of the printed patterns with the printed original pictures so as to judge the quality of the printed matter.
In view of the above-mentioned related art, the inventor believes that there is a defect that the quality detection device in the related art can only detect whether the finished printed product is qualified, and it is difficult to analyze and judge the printing links and causes of the problems by detecting the unqualified printed product.
Disclosure of Invention
In order to improve and to be difficult to through the defect of the printing link and the reason of the detection judgement production problem to unqualified printed matter when detecting the printed matter, this application provides a printing quality detection device of printing machine.
The application provides a printing quality detection device of printing machine adopts following technical scheme:
a printing quality detection device of a printing machine comprises four groups of quality detection devices arranged in a four-color printing machine, wherein each quality detection device and each printing roller of the four-color printing machine are arranged at intervals, the quality inspection devices are respectively in one-to-one correspondence with the printing rollers and are positioned at the rear sides of the corresponding printing rollers, each quality inspection device comprises a conveying platform and a detection unit, the detection unit is positioned above the conveying platform, a positioning material blocking structure is arranged on the conveying platform, and a conveying mechanism is arranged on the conveying platform, the positioning material blocking structure comprises a photoelectric sensor and a driving cylinder, the driving cylinder is fixedly arranged above the conveying platform, a piston rod of the driving cylinder vertically extends downwards and is fixedly connected with a blocking rod at the end part, when the piston rod of the driving cylinder extends out, the interception rod is abutted against the conveying platform, and the photoelectric sensor is embedded on the upper surface of one end, facing the printing roller, of the conveying platform.
By adopting the technical scheme, when the printing paper enters the quality inspection device after passing through the group of printing rollers, the printing paper is firstly conveyed by the conveying device on the conveying platform, and is limited by the intercepting rod below the detection unit. The detection unit detects patterns printed on printing paper, the detection content comprises the definition of the patterns, color deviation and printing position skewness, and a group of quality inspection devices are arranged on the rear side of the printing roller with printing ink of different colors, so that after the printing roller prints the printing paper every time, if the detection unit detects the printing quality problem, a worker can repair and adjust the corresponding printing roller and a printing assisting mechanism, and the position and the reason of the printing quality problem can be accurately and quickly judged.
Optionally, a limiting rod parallel to the conveying platform is fixedly connected to the intercepting rod, when the piston rod of the driving cylinder extends out, a gap is left between the limiting rod and the conveying platform, and the height of the gap is 3-10 mm more than the thickness of printing paper used.
Through adopting above-mentioned technical scheme, through setting up the gag lever post, when printing paper when transporting the photogate of platform, the piston rod that drives actuating cylinder stretches out, make the interception pole support tightly on transporting the platform, with the printing paper interception in the motion, simultaneously through the gag lever post on the interception pole, when having reduced printing paper striking on the interception pole, printing paper is because inertia and crooked arch, causes the possibility of printing paper fold, through the height of restriction gag lever post, when making the gag lever post spacing to printing paper, reduces the gag lever post and hinders the printing paper and stretch into the possibility of gag lever post downside.
Optionally, the conveying mechanism comprises a speed reducing structure and an accelerating structure, the accelerating structure is located on one side, away from the corresponding printing roller, of the speed reducing structure, the speed reducing structure comprises a conveyor belt, a limiting groove is formed in the surface of the conveyor belt, and the groove width of the limiting groove is matched with the width of the printing paper to be used.
Through adopting above-mentioned technical scheme, when printing paper was transported to the detecting element direction, because present four-color printing machine is very fast to printing paper's the transport speed, influence detecting element's detection quality to a certain extent, consequently, the moving speed of printing paper slows down through the structure that slows down, when printing paper moved to the conveyer belt, because the moving speed of conveyer belt is slower, the moving speed of printing paper reduces gradually, the cell wall through spacing recess simultaneously carries on spacingly in the both sides of conveyer belt, promote printing paper's regularity, be convenient for detect.
Optionally, the accelerating mechanism includes accelerating motor, fixedly connected with drive rubber tyer on accelerating motor's the motor shaft, the distance between the circumference lateral wall of drive rubber tyer and the printing paper surface is less than the distance between gag lever post and the printing paper surface, it is curved mechanism groove to set up the tank bottom on the platform to transport, the mechanism inslot is equipped with the air nozzle that the spout set up towards the tank bottom.
Through adopting above-mentioned technical scheme, after the test element inspects the printing figure of printing the paper line, the air nozzle begins work, and the air current is at first blown to the tank bottom in mechanism groove to cambered surface along the tank bottom is reverse to be blown to the notch direction, thereby lifts up printing paper slightly, is printing paper and drive rubber tyer contact, and the drive rubber tyer is through the quick direction with printing paper of frictional force to keeping away from the printing roller and transports with higher speed, has practiced thrift process time.
Optionally, the one end of transporting the platform towards corresponding printing roller is equipped with printing ink solidification equipment, printing ink solidification equipment includes the lamp shade, be equipped with ultraviolet curing lamp in the lamp shade.
Through adopting above-mentioned technical scheme, through setting up the ultraviolet curing lamp, can solidify the stoving to the printing ink on the paper after printing paper process printing roller, reduce the paper and contact with other objects in the transportation process and cause the fuzzy possibility of printing pattern.
Optionally, a cooling slit is arranged between the ink solidifying device and the conveying platform, a duckbill-shaped air nozzle is arranged on one side of the cooling slit, a plurality of air deflectors are fixedly arranged on the inner wall of the nozzle of the duckbill-shaped air nozzle, and each air deflector is arranged in parallel to the conveying platform.
Through adopting above-mentioned technical scheme, through setting up cooling slit and duckbilled type air nozzle, the air nozzle is at the working process blowout air current, when printing paper through the cooling slit, the paper is cooled by the air current that flows, because the wind direction is roughly parallel to the paper, the possibility that takes place to wave when having reduced the paper motion, air nozzle spun wind forms one side "air wall" simultaneously, the transmission efficiency of printing ink solidification equipment during operation production heat to the detecting element direction has been reduced, detecting element's detection accuracy has been promoted, and the working life of electrical component on the detecting element has been prolonged.
Optionally, the cooling slit is provided with a plurality of limiting ropes on the upper and lower sides of the printing paper.
By adopting the technical scheme, the paper is limited by the limiting rope, so that the possibility of deflection in the moving process of the paper is further reduced, meanwhile, the air flowing is less obstructed by the limiting rope, the influence on the air flowing direction is reduced, and the possibility of influencing the heat dissipation efficiency is reduced.
Optionally, a light shielding plate is arranged on one side of the ink curing device close to the conveying platform, the light shielding plate includes a black absorption layer and a heat insulation layer, and the black absorption layer faces one side of the ink curing device.
Through adopting above-mentioned technical scheme, through setting up the light screen, light screen black absorbed layer absorbs ultraviolet ray and infrared ray to further reduce the heat transfer through the insulating layer, promoted detecting element's detection reliability.
Optionally, the detection unit includes a plurality of detection cameras with lenses arranged vertically downward, a distance between the plurality of detection cameras and the surface of the printing paper is not more than 20 cm, and shooting ranges of the plurality of detection cameras are complementary on the surface of the printing paper.
By adopting the technical scheme, because the detection camera is closer to the surface of the printing paper, the detection camera can more accurately shoot and record the printing graph, the printing content on the printing paper is synchronously detected through the plurality of detection cameras, and the shooting pictures of the plurality of detection cameras are synthesized through the computer, so that the complete printing graph is obtained.
Optionally, a plurality of illuminating lamps are arranged on the conveying platform and surround the detection camera, and frosted lamp housings are arranged on the illuminating lamps.
Through adopting above-mentioned technical scheme, through the setting that sets up the LED lamp, promoted the luminance that detects camera work department paper, and then promoted the definition that detects the camera and shoot, because be equipped with the dull polish lamp body on the light, reduced the possibility that light takes place specular reflection on the paper and influence the shooting effect, because the light encircles the setting of detection camera, reduced light and produced the shadow that detects the camera projection formation on the paper, further promoted the shooting quality.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the group of quality inspection devices are arranged behind each printing roller, so that the printing quality of each group of printing rollers is detected, and if the printing quality is in a problem, workers can quickly repair and adjust the printing rollers and related printing mechanisms which have the problems, and the monitoring degree of the working state of the printing equipment is improved;
2. by arranging the deceleration structure and the acceleration structure, the printing paper is decelerated before being detected and accelerated after being detected, so that the retention time of the printing paper is reduced, and the processing efficiency is improved;
3. through setting up solidification equipment and carrying out timely solidification to printing ink, reduced printing ink and touched and produce the fuzzy condition of printed pattern in the paper motion process to through the setting of cooling slit and duckbill type air jet head to the paper cool down, reduced the measuring element temperature rise and produced the possibility that detects the deviation.
Drawings
Fig. 1 is a schematic structural diagram for embodying the whole apparatus according to the embodiment of the present application.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic diagram for showing structures below the structure frame according to the embodiment of the present application.
Fig. 4 is a schematic cross-sectional view of an internal structure of a slot for embodying the mechanism according to the embodiment of the present application.
Fig. 5 is a schematic cross-sectional view illustrating a structure of an illumination lamp and a frosted lamp housing according to an embodiment of the present disclosure.
Fig. 6 is a schematic cross-sectional view for embodying a light shielding plate structure according to an embodiment of the present application.
Description of reference numerals: 1. a quality inspection device; 11. a transport platform; 111. a structural frame; 2. a detection unit; 21. detecting a camera; 22. an illuminating lamp; 23. frosted lamp housing; 3. positioning a material blocking structure; 31. a driving cylinder; 32. a photosensor; 33. a catch bar; 331. a limiting rod; 4. a printing roller; 41. a receiving platform; 42. a visor; 421. a black absorbing layer; 422. a thermal insulation layer; 51. a deceleration structure; 511. a conveyor belt; 512. a limiting groove; 52. an acceleration structure; 521. an acceleration motor; 522. driving the rubber wheel; 523. a mechanism slot; 524. an air nozzle; 6. an ink curing device; 61. a lamp shade; 62. an ultraviolet curing lamp; 7. a cooling structure; 71. cooling the slit; 72. a duckbill type air jet head; 721. an air deflector; 73. and limiting the rope line.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses printing quality detection device of printing machine. Referring to fig. 1, a printing quality detection device of a printing machine includes four sets of quality inspection devices 1, where the quality inspection devices 1 are disposed in one-to-one correspondence with printing rollers 4 and located at the rear side of the printing rollers 4, that is, printing paper passes through the printing rollers 4 first and then passes through the corresponding quality inspection devices 1. The printing roller 4 is provided with an ink solidifying device 6 and a cooling structure 7 on the primary side facing the quality inspection device 1.
Referring to fig. 1 and 3, the quality inspection device 1 includes a conveying platform 11, a conveying mechanism, a positioning material blocking structure 3 and a detection unit 2 are disposed on the conveying platform 11, and the conveying mechanism includes an accelerating structure 52 and a decelerating structure 51. The deceleration structure 51 is arranged on one side of the detection unit 2 close to the printing roller 4, the acceleration structure 52 is arranged on one side of the detection unit 2 far away from the printing roller 4, and the positioning material blocking structure 3 is arranged between the acceleration structure 52 and the deceleration structure 51. Speed reduction structure 51 includes conveyer belt 511, and conveyer belt 511 passes through motor drive, and a plurality of spacing recess 512 have been seted up to conveyer belt 511's belt surface, and the groove width of spacing recess 512 and the printing paper phase-match of difference, and the less spacing recess 512 of width is seted up at the tank bottom of the great spacing recess 512 of width to be convenient for carry on spacingly to the printing paper of not unidimensional.
Referring to fig. 1 and 3, a structural frame 111 is fixedly connected to the conveying platform 11, the positioning material blocking structure 3 includes a driving cylinder 31 fixedly connected to the structural frame 111, a piston rod of the driving cylinder 31 is vertically arranged downward, an intercepting rod 33 is fixedly connected to an end of the piston rod of the driving cylinder 31, and the intercepting rod 33 collides with the conveying platform 11 when the piston rod of the driving cylinder 31 extends out, so that paper is intercepted. The catch bar 33 is arranged parallel to the side edge of the printing sheet. Both ends of the intercepting rod 33 are fixedly connected with a limiting rod 331, the limiting rod 331 is arranged in parallel to the surface of the conveying platform 11, the distance between the ground of the limiting rod 331 and the surface of the printing paper is 3-10 mm, and 5 mm is selected in the embodiment, so that the possibility that the paper is limited when the paper enters the lower part of the limiting rod 331 and then moves to be blocked, and the end part of the paper is placed to collide with the intercepting rod 33 and then generate protrusion and bending due to inertia is reduced. A photoelectric sensor 32 is embedded on the upper surface of one end of the conveying platform 11 close to the printing roller 4, and the photoelectric sensor 32 is electrically connected with a control circuit of the driving air cylinder 31.
Referring to fig. 3 and 4, the detecting unit 2 includes a plurality of detecting cameras 21, the detecting cameras 21 are all fixedly connected to the structural frame 111, and the lens of each detecting camera 21 faces a vertical downward direction. The shooting ranges of the respective detection cameras 21 are complementary.
Referring to fig. 3 and 5, every detection camera 21's circumference all is equipped with round light 22, and light 22 chooses for use the LED cold light source, and the light 22 upper shield is equipped with dull polish lamp body 23 to reduce light and concentrate and produce specular reflection's reflection of light point on the printing paper, influence the possibility that detection camera 21 took a picture the effect.
Referring to fig. 4, the accelerating structure 52 includes a wheel frame fixed on the structure frame 111, a driving rubber wheel 522 is rotatably connected to the wheel frame, a distance from the driving rubber wheel 522 to the printing paper surface is less than a distance from the limiting rod 331 to the printing paper surface, and an accelerating motor 521 for driving the driving rubber wheel 522 to rotate is fixedly connected to the wheel frame. The conveying platform 11 is provided with a mechanism groove 523 below the position where the printing paper stays, the groove bottom of the mechanism groove 523 is arc-shaped, an air pipe penetrates through the two opposite side walls of the mechanism groove 523, an air nozzle 524 is fixedly connected to the air pipe, and the air nozzle 524 faces the groove bottom of the mechanism groove 523. When the accelerating mechanism works, the air nozzle 524 ejects air, the air firstly blows to the bottom of the mechanism groove 523 and is reflected by the arc-shaped groove bottom, so that the air flow is dispersed and uniformly lifts the printing paper from the lower part of the printing paper, and the printing paper is contacted with the driving rubber wheel 522 and is driven by the driving rubber wheel 522 through friction force.
Referring to fig. 5, one side of printing roller 4 towards transporting platform 11 is equipped with accepts platform 41, ink curing device 6 sets up on accepting platform 41, ink curing device 6 includes lamp shade 61, be equipped with ultraviolet curing lamp 62 in the lamp shade 61, it is equipped with light screen 42 towards one side of transporting platform 11 to locate lamp shade 61 on accepting platform 41, light screen 42 includes black absorbed layer 421 and insulating layer 422, black absorbed layer 421 is towards one side of lamp shade 61, absorb ultraviolet ray and infrared ray, and with the heat separation through the heat insulating board, reduce the heat of ink curing device 6 during operation and transmit to detecting element, cause the possibility of detecting element work malfunction.
Referring to fig. 1 and 2, a cooling slit 71 is provided between the transporting platform 11 and the receiving platform 41, the cooling structure 7 includes a duckbill-shaped air nozzle 72, the duckbill-shaped air nozzle 72 is located on one side of the cooling slit 71, the length direction of the duckbill-shaped air nozzle 72 is arranged along the vertical direction, a plurality of air deflectors 721 are arranged in the nozzle of the duckbill-shaped air nozzle 72, the air deflectors 721 are uniformly distributed along the height direction, and each air deflector 721 is arranged parallel to the paper surface of the printing paper. A plurality of limiting ropes 73 are arranged between the conveying platform 11 and the receiving platform 41, and the limiting ropes 73 are uniformly distributed on the lower side and two sides of the printing paper to limit the printing paper.
The implementation principle of the printing quality detection device of the printing machine in the embodiment of the application is as follows: in the actual detection process, the printing paper passes through the printing roller 4, passes through the ink fixing device, is solidified by the ultraviolet curing lamp 62, and then passes through the cooling slit 71, and is cooled by the wind nearly parallel to the paper surface. The printing paper moves onto the conveyor 511 at a gradually decreasing speed. The catch bar 33 blocks and positions the printing sheet as it extends from the conveyor 511 away from the piston rod of the post-drive cylinder 31. The detection cameras 21 shoot the patterns on the printing paper, the computer splices the images collected by the detection cameras 21, then the computer compares the spliced images with the standard images, and the definition, color and position of the printed patterns are compared and detected to obtain detection results.
Because every printing roller 4 rear side all is equipped with quality control device 1, when the deviation appears in the printing, the computer gathers and timely feedback to the deviation information, and the staff of being convenient for is quick, accurate controls the behavior of each part of printing machine, and the analysis produces the reason of quality problems to improve production quality.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a printing quality detection device of printing machine which characterized in that: including setting up four groups quality inspection device (1) in four-color printing machine, each quality inspection device (1) and each printing roller (4) interval arrangement of four-color printing machine, quality inspection device (1) respectively with printing roller (4) one-to-one and be located corresponding printing roller (4) rear side, quality inspection device (1) is including transporting platform (11) and detecting element (2), detecting element (2) are located the top of transporting platform (11), it keeps off material structure (3) to be equipped with location on platform (11), and transport and be equipped with transport mechanism on platform (11), location keeps off material structure (3) and includes photoelectric sensor (32) and drive actuating cylinder (31), it sets firmly in the top of transporting platform (11) to drive actuating cylinder (31), the vertical downwardly extending of piston rod and tip fixedly connected with of drive actuating cylinder (31) intercept pole (33), when a piston rod of the driving air cylinder (31) extends out, the interception rod (33) is abutted against the conveying platform (11), and the photoelectric sensor (32) is embedded on the upper surface of one end, facing the printing roller (4), of the conveying platform (11);
a limiting rod (331) parallel to the conveying platform (11) is fixedly connected to the intercepting rod (33), when a piston rod of the driving cylinder (31) extends out, a gap is reserved between the limiting rod (331) and the conveying platform (11), and the height of the gap is 3-10 mm more than the thickness of printing paper used;
the conveying mechanism comprises a speed reducing structure (51) and an accelerating structure (52), the accelerating structure (52) is located on one side, away from the corresponding printing roller (4), of the speed reducing structure (51), the speed reducing structure (51) comprises a conveyor belt (511), a limiting groove (512) is formed in the surface of the conveyor belt (511), and the width of the limiting groove (512) is matched with the width of printing paper used.
2. The printing quality detection device of the printing machine according to claim 1, wherein: the accelerating structure (52) comprises an accelerating motor (521), a driving rubber wheel (522) is fixedly connected to a motor shaft of the accelerating motor (521), the distance between the circumferential side wall of the driving rubber wheel (522) and the surface of the printing paper is smaller than the distance between a limiting rod (331) and the surface of the printing paper, a mechanism groove (523) with a curved groove bottom is formed in the conveying platform (11), and an air nozzle (524) with a nozzle arranged towards the groove bottom is arranged in the mechanism groove (523).
3. The printing quality detection device of the printing machine according to claim 1, wherein: the one end of transporting platform (11) towards corresponding printing roller (4) is equipped with printing ink solidification equipment (6), printing ink solidification equipment (6) are including lamp shade (61), be equipped with ultraviolet curing lamp (62) in lamp shade (61).
4. The printing quality detection device of the printing machine according to claim 3, wherein: a cooling slit (71) is arranged between the ink solidifying device (6) and the conveying platform (11), a duckbill-shaped air nozzle (72) is arranged on one side of the cooling slit (71), a plurality of air deflectors (721) are fixedly arranged on the inner wall of the nozzle of the duckbill-shaped air nozzle (72), and each air deflector (721) is arranged in parallel to the conveying platform (11).
5. The printing quality detection device of the printing machine according to claim 4, wherein: and a plurality of limiting ropes (73) are arranged at the upper side and the lower side of the printing paper at the position of the cooling slit (71).
6. The printing quality detection device of the printing machine according to claim 4, wherein: one side of the ink curing device (6) close to the conveying platform (11) is provided with a light shielding plate (42), the light shielding plate (42) comprises a black absorption layer (421) and a heat insulation layer (422), and the black absorption layer (421) faces one side of the ink curing device (6).
7. The printing quality detection device of the printing machine according to claim 1, wherein: the detection unit (2) comprises a plurality of detection cameras (21) with lenses arranged downwards vertically, the distance between each detection camera (21) and the surface of the printing paper is not more than 20 centimeters, and the shooting ranges of the detection cameras (21) are complementary on the surface of the printing paper.
8. The printing quality detection device of the printing machine according to claim 7, wherein: the conveying platform (11) is provided with a plurality of illuminating lamps (22), the illuminating lamps (22) are arranged around the detection camera (21), and the illuminating lamps (22) are provided with frosted lamp shells (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538008.5A CN112721441B (en) | 2020-12-23 | 2020-12-23 | Printing quality detection device of printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011538008.5A CN112721441B (en) | 2020-12-23 | 2020-12-23 | Printing quality detection device of printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112721441A CN112721441A (en) | 2021-04-30 |
| CN112721441B true CN112721441B (en) | 2022-05-06 |
Family
ID=75604727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011538008.5A Active CN112721441B (en) | 2020-12-23 | 2020-12-23 | Printing quality detection device of printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112721441B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117124743B (en) * | 2023-10-24 | 2024-01-05 | 苏州同里印刷科技股份有限公司 | UV printing ultraviolet light curing adjusting mechanism and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19724829A1 (en) * | 1997-06-12 | 1998-12-17 | Sekurit Saint Gobain Deutsch | Screen printing machine for printing on glass panes |
| EP1579994A1 (en) * | 2004-03-23 | 2005-09-28 | Koenig & Bauer Aktiengesellschaft | Printing machine with an inline inspection system |
| EP2135740A2 (en) * | 2008-05-28 | 2009-12-23 | Manroland AG | Printing machine with integrated operating system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4803944B2 (en) * | 2002-07-19 | 2011-10-26 | 大日本スクリーン製造株式会社 | Printed matter measuring method and printed matter measuring apparatus |
| CN100394166C (en) * | 2004-12-20 | 2008-06-11 | 华中科技大学 | On-line datecting device for printed matter quality |
| WO2007077592A1 (en) * | 2005-12-28 | 2007-07-12 | Dac Engineering Co., Ltd. | Printed matter inspection device |
| CN205736416U (en) * | 2016-01-07 | 2016-11-30 | 东莞嘉佑印刷有限公司 | A kind of printing equipment of band printed matter surface quality testing function |
| EP3251849A1 (en) * | 2016-05-31 | 2017-12-06 | Windmöller & Hölscher KG | Flexographic printing machine |
| CN205970392U (en) * | 2016-06-13 | 2017-02-22 | 林海航 | Take printing paper quality detection device's digital printing equipment |
| CN109367208B (en) * | 2018-10-25 | 2020-12-04 | 合肥艾特标牌有限公司 | Production line of silk-screen label |
| CN110435300B (en) * | 2019-08-10 | 2021-04-02 | 武汉市金港彩印有限公司 | Online screening system of printed matter |
| CN111595683A (en) * | 2020-04-25 | 2020-08-28 | 南通科创建设工程检测有限公司 | Building material shaping detection utensil |
| CN112098082B (en) * | 2020-09-03 | 2024-09-13 | 南京博克纳自动化系统有限公司 | Automatic workpiece quality detection equipment |
-
2020
- 2020-12-23 CN CN202011538008.5A patent/CN112721441B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19724829A1 (en) * | 1997-06-12 | 1998-12-17 | Sekurit Saint Gobain Deutsch | Screen printing machine for printing on glass panes |
| EP1579994A1 (en) * | 2004-03-23 | 2005-09-28 | Koenig & Bauer Aktiengesellschaft | Printing machine with an inline inspection system |
| EP2135740A2 (en) * | 2008-05-28 | 2009-12-23 | Manroland AG | Printing machine with integrated operating system |
Non-Patent Citations (1)
| Title |
|---|
| 基于印前、印刷、印后过程的智能化应用;游伴奏;《今日印刷》;20201010(第10期);21-23 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112721441A (en) | 2021-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5471309A (en) | Print quality control device for perfecting press | |
| CN101975557B (en) | Ceramic plate detection equipment and detection method | |
| US10506107B2 (en) | In line color monitoring system | |
| CN112721441B (en) | Printing quality detection device of printing machine | |
| JPH05254091A (en) | Controlling apparatus for sheet printed by sheet-fed rotary press | |
| CN101750420A (en) | Printing material quality online visual inspection system | |
| CN101346233B (en) | Printed matter examination apparatus | |
| CN115219512A (en) | PE film surface crystal point detection equipment | |
| CN209552675U (en) | Sheet stock Printing Production Systems | |
| CN209291625U (en) | The automatic product examine machine of electronic tag | |
| CN115165736B (en) | AOI module automated inspection equipment | |
| KR101086374B1 (en) | Inspection apparatus | |
| JP3846621B2 (en) | Marking method and coating surface inspection device with marking function | |
| CN215478731U (en) | Automatic paper collecting device for green printing machine | |
| CN216013108U (en) | Split type PCB optical detection device | |
| CN114405838A (en) | Seven-lens visual inspection machine for bottle cap image visual screening | |
| CN211122573U (en) | Ceramic tile unfilled corner detection equipment | |
| JP2948482B2 (en) | Metal sheet printing quality inspection equipment | |
| CN105241892B (en) | A kind of print quality detection means | |
| CN214449567U (en) | Optical detection laser inkjet printer | |
| CN219573948U (en) | Reflective film defect detection device | |
| CN218823984U (en) | Visual online detection device for wide-breadth glass | |
| JP4272299B2 (en) | Lead frame flutter prevention mechanism and lead frame inspection device | |
| CN216026307U (en) | Choice equipment of short bamboo strip | |
| CN216896674U (en) | Camera mounting mechanism for screen printing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |