2736 results about "Printing press" patented technology

The invention discloses a printing machine accessory laser detection device, and relates to the technical field of printing machine accessory production, the printing machine accessory laser detection device comprises a tool substrate and a laser detection assembly, the laser detection assembly is arranged below the tool substrate, and the laser detection assembly comprises an air cylinder fixed to the back end of the tool substrate through a bolt; a connecting plate is fixedly connected to the telescopic end of the air cylinder, a lifting rod is fixedly connected to the bottom of the tail end of the connecting plate, gear rings are fixed to the middle of the lifting rod in the radial direction at equal intervals, and a prism is fixedly installed at the tail end of the lifting rod. According to the non-contact measurement scheme based on the laser displacement sensor, the laser displacement sensor is responsible for measuring the position of the inner wall of the roller, the prism is used for changing the direction of the laser, the upper computer software is responsible for data processing and display, and compared with a traditional laser coaxial displacement meter, the laser displacement sensor is lower in cost and more accurate in measurement. Physical contact with the inner wall of the roller is not needed in the whole measurement process, and contact damage is avoided.

The invention relates to the technical field of printing, in particular to a flexo printing machine control method and system based on machine vision. The method comprises the following steps: collecting surface image data of a printed matter in a motion state in real time, separating and identifying a preset printing feature region from the image data, and obtaining geometric feature parameters of the region relative to a reference position; generating a multi-axis cooperative position compensation instruction of the printing unit according to the deviation value of the geometrical characteristic parameter and a preset target characteristic; converting the position compensation instruction into an adjusting parameter of a servo driving system in real time, and dynamically adjusting the pressure of a printing roller of a printing unit and the displacement of a registration mechanism; and synchronously outputting a defect type judgment signal and correlating the adjustment parameter correction value based on the form change of the printing feature region in the updated image data. According to the method, the stability and the adjusting efficiency of the printing quality are improved, and the defects that a traditional method is lagged in response and inaccurate in adjustment are overcome.

The utility model discloses an HTCC ceramic chip hole-filling printing machine printing platform which comprises a rack table, a horizontal transverse sliding rail is horizontally and transversely arranged on the rack table, an installation base is arranged on the horizontal transverse sliding rail in a sliding mode, and a drag chain used for driving the installation base to slide on the horizontal transverse sliding rail is arranged on the rack table. A printing platform is arranged on the mounting base, a mounting block is arranged on one side of the mounting base, a rotating breathable paper feeding shaft and a rotating breathable paper receiving shaft are horizontally and longitudinally arranged on the mounting block, and breathable paper is wound on the breathable paper feeding shaft and the breathable paper receiving shaft. The breathable paper is led out of the breathable paper feeding shaft, passes through the printing platform and then is wound on the breathable paper receiving shaft, a negative pressure hole is formed in the printing platform, and the breathable paper on the printing platform is adsorbed to the printing platform through negative pressure in the negative pressure hole. The printing platform of the HTCC ceramic chip hole filling printing machine is used for small hole filling printing of HTCC ceramic chips.

The invention belongs to the technical field of image enhancement, and particularly relates to an image enhancement method for printing plate inspection of a printing machine, which comprises the following steps of: S1, acquiring an original digital image of a printing plate to be inspected, and performing multi-scale decomposition, detail remapping and image reconstruction on the original digital image to obtain an enhanced image; s2, a multi-scale decomposition process: processing an input image of any scale level l from fine to rough: calculating a local gradient covariance matrix, a local information entropy graph and gradient consistency measurement of the input image; and constructing a spatial variable filtering kernel, and filtering the input image by using the spatial variable filtering kernel to obtain a baseband image. According to the method, amplification of background noise and irrelevant textures can be inhibited while the contrast of weak flaws is enhanced, and the obtained enhanced image is high in signal-to-noise ratio, outstanding in flaw feature and clear in edge contour.

The invention relates to the technical field of thickness laser measurement, and discloses a composite printing machine film thickness laser measurement device which comprises a supporting base, a fixing support is arranged on one side of the top of the supporting base, and one distance sensor is arranged on the top of the fixing support. The other distance sensor is arranged at the center of the top of the supporting base; the auxiliary measuring mechanism is located on one side of the thin film tightening mechanism, and a thin film winding mechanism is arranged on one side of the auxiliary measuring mechanism. According to the film thickness laser measuring device of the composite printing machine, the distance between fourth tightening rods is controlled, the tightening degree is adjusted, a film is tightened conveniently and kept horizontal, a distance sensor is fixed to the top of the film through a fixing support, and another distance sensor is arranged at the position, under the distance sensor, of the bottom of the film. The height of the fixing support is fixed, the distance sensor measures the distance between the distance sensor and the film through the laser detection probe, and the thickness of the film can be obtained.

The invention provides a transverse registration error model construction method, a model, a control method and a printer, and the method comprises the steps: building a coiled material elastic curve relation through a beam theoretical equation according to motion control parameters and material mechanical coupling parameters of a coiled material and a printing roller of a roll-to-roll printer; determining a general solution coefficient of a fourth-order differential equation of an elastic curve of the coiled material according to a given boundary condition of the coiled material between an upstream printing roller and a downstream printing roller to obtain an equation of curvature at the downstream roller; the transverse speed and the transverse acceleration of the coiled material are combined with the curvature equation of the printing roller, and the relation between the printing roller and the transverse displacement of the reel base material is obtained; and combining the relation between the transverse displacement of the printing roller and the transverse displacement of the reel base material with the transverse registration error equation of the printing roller to obtain a final transverse registration error model. According to the registration data output by the transverse registration error model, the upstream disturbance is compensated through the feed-forward controller, the registration precision of roll-to-roll printing is remarkably improved, the production cost is reduced, and the production efficiency is improved.

The invention discloses an intelligent cooperative control system and method for the UV curing process of a rotary press, and relates to the technical field of industrial process control, the system comprises a data acquisition module, a central cooperative control module, a UV light source control module, a temperature regulation module, a speed synchronization module and a man-machine interaction module, the central cooperative control module receives curing temperature data, printing speed data and UV illumination intensity data acquired by the data acquisition module, generates a control instruction through a preset cooperative control algorithm, and sends the control instruction to the UV light source control module, the temperature adjustment module and the speed synchronization module, so that multi-parameter cooperative control of the UV curing process is realized, and the UV curing process is controlled. Through an intelligent cooperative control algorithm, real-time dynamic adjustment of the UV light source power, the curing temperature and the printing speed is achieved, the consistency and stability of the UV curing quality are improved, energy consumption is reduced, and the production efficiency of the rotary press is improved.

The screen printing machine comprises a feeding mechanism, a printing machine table and a discharging mechanism which are arranged in sequence, and the feeding mechanism is used for conveying battery pieces to be printed to a feeding position; the printing machine table comprises a machine frame, a transferring mechanism and at least two printing parts, each printing part comprises a mounting machine frame, a printing table and a printing mechanism, the mounting machine frames extend in the second horizontal direction, and the printing tables can move to the material receiving station, the printing station and the discharging station in the second horizontal direction to be mounted on the mounting machine frames; the printing mechanism is used for printing the battery pieces on the printing table on the printing station; the transfer mechanism is used for picking up the battery pieces at the feeding position, conveying the picked battery pieces to the positions above the material receiving stations of all the printing parts in the first horizontal direction and then releasing the battery pieces to the printing tables located on the material receiving stations. According to the screen printing machine, the overall length of the machine table is greatly shortened, and equipment can be conveniently placed in a workshop.

The modular intelligent printing robot comprises a printing robot body and a plugging part, the plugging part comprises a plurality of sealing parts, the sealing parts slide in an ink jet port to plug the ink jet port and occupy the space of the bottom of the ink jet port, and the outlet direction of a spiral hole faces the inner wall of the ink jet port; when the printing robot body heats the ink in the printing robot body, the ink is sprayed out through the spiral hole, and the ink in the ink-jet nozzle rolls up sediment in a spiral shape and circularly flows with the ink in the printing robot body. And when the sealing part leaves the ink-jet port, a space is reserved for ink, so that the ink is prevented from dripping due to pressure. By means of the special design of the spiral holes, when ink is sprayed out, rotating force is formed, the ink in the ink-jet opening is driven to be in a spiral shape to form vortex, sediment is rolled up and circularly flows with the ink in the printing robot body, adhesion of ink particles is effectively avoided, the conditions that the ink-jet amount is reduced and printing spots exist in printing are prevented, and the printing quality is improved.

The present invention discloses a four-position full-cell solar silicon wafer printer, including a base, an infeed guide rail, a detection camera assembly, a turntable assembly, a lifting module, a UVW correction alignment mechanism, and an outfeed guide rail. The UVW mechanism comprises two Y-axis modules, one X-axis module, a printing platform, a steel mesh frame, and a printing squeegee kit. The Y / X-axis modules are under the platform, their drive ends connected to the steel mesh frame. The squeegee kit moves left-right on the platform. It uses the Y / X-axis modules and detection camera to realize X, Y, θ three-axis motion, ensuring steel mesh-silicon wafer alignment and optimizing printing directions.

The invention discloses an intelligent white spirit bottle cap printing device, and relates to the technical field of white spirit bottle cap processing, the intelligent white spirit bottle cap printing device comprises a base, a rotating seat and a printing mechanism, the rotating seat is intermittently and rotatably arranged above the base, a plurality of limiting grooves are formed in the edge of the rotating seat, and clamping mechanisms are arranged in the limiting grooves; the multiple printing mechanisms are arranged and correspond to the positions above the clamping mechanisms, a discharging conveying belt, a feeding conveying belt and a dust removing mechanism are arranged on the edge of the base and annularly arranged on the edge of the base at equal intervals, and fixing rails are symmetrically arranged on the rotating bases on the two sides below a limiting groove. A sliding plate is slidably arranged in the fixed rail and is driven by a magnetic plate to slide. After the bottle caps are clamped by the clamping mechanism during feeding, the bottle caps are in a stable state all the time, and even if the rotating base rotates to adjust the position, the bottle caps cannot deviate in the angle position, so that positioning points for printing each time are located at the same position, and the printing quality is guaranteed.

The utility model discloses an automation line of a single-chain pneumatic tube type bottle silk-screen printing machine, and aims to solve the problems of low automation level, large occupied area and high cost of the conventional silk-screen printing machine. The automatic line comprises a bottle feeding device, a conveying device, a full-automatic printing machine, a baking device, a bottle discharging device, a fan and a control device. The bottle feeding device pushes materials to a lengthened pin chain of the conveying device through a rubber gear and a pushing air cylinder. The conveying equipment adopts a single-chain design, and accurate conveying of materials is achieved through a second air cylinder and a second ratchet wheel; the baking equipment performs low-temperature drying by using an electric heating tube and heat-insulating asbestos; the bottle discharging equipment achieves automatic collection of materials through a bottle discharging baffle with a slope. The control equipment adopts a PLC (Programmable Logic Controller) and a touch screen, so that the printing speed and the baking temperature can be accurately controlled, and production parameters can be displayed in real time. The automatic line adopts pneumatic control, and is simple in structure, low in cost and high in production efficiency.

The invention relates to the related technical field of four-chip bridge rectifier processing, in particular to double-end synchronous processing precision miniature MBL bridge rectifier production equipment and a production process, and the equipment comprises a chip combining mechanism, and a material placing table, a solder paste printing mechanism and a die bonding mechanism which are symmetrically arranged along the chip combining mechanism and are sequentially arranged towards the direction of the chip combining mechanism; the die bonding mechanism comprises a support frame body; two symmetrical connecting parts are formed on the connecting arm and used for connecting the swing arm, and two die bonding suction nozzles are installed at the end, away from the connecting arm, of the swing arm; the buffering shaft is connected with the connecting arm, and a buffering piece which elastically buffers in the circumferential direction is arranged between the buffering shaft and the telescopic shaft connected with the driving source; the lifting driving unit is arranged on the supporting frame body and is used for driving the buffer shaft to move axially so as to drive the die bonding suction nozzle to move downwards and reset; the buffer shaft can effectively slow down the initial rotation speed under the action of the buffer piece, so that the problem that crystal grains on the die bonding suction nozzle deviate or fall off due to the dual action of inertia force and centrifugal force is solved.

A printing result prediction device is configured to predict a volume of solder paste printed by a printer onto a substrate. The printer is configured to print the solder paste by filling the solder paste into a stencil aperture of a stencil disposed on the substrate. The printing result prediction device includes a calculation part. The calculation part is configured to input a printing condition to a prediction model trained by machine learning, and predict a volume of solder paste printed by the stencil aperture of the stencil in a next printing using the input printing condition. The printing condition includes stencil information related to the stencil used to print, solder paste information related to the solder paste used to print, substrate information including unevenness information related to a protrusion on the substrate used to print, and a printing parameter of an operation of the printer when printing.

The utility model discloses a silicon wafer printing machine suitable for double-half-wafer printing, which comprises a working platform, a turntable assembly, a front section conveying rail, a left side calibration module and a right side calibration module, and a calibration vision camera is arranged above the tail end of the front section conveying rail; the left linear module is connected with a left motor module, and the left motor module is connected with a left adsorption module; the right linear module is connected with a right motor module, the right motor module is connected with two calibration cylinders, the calibration cylinders are connected with calibration bearings, and the two calibration bearings are jointly connected with a right adsorption module. According to the silicon wafer printing machine suitable for double-half-wafer printing, visual positioning is conducted at the tail end of the conveying rail, the positions and angles of the double half wafers are judged, the left half wafer serves as the reference, the right half wafer is controlled to adjust the angle, the alignment time of the double half wafers is greatly shortened, double-head double-half-wafer printing is improved into single-head double-half-wafer printing, a front-back printing mode is adopted, and the printing efficiency is greatly improved. The size of the index plate is reduced, and the efficiency of printing on the rotary disc assembly is improved.

The invention relates to the technical field of printing machines, and particularly discloses a package digital printing machine which comprises a sliding device, a conveying device, a driving device and a driving device. The jet printing trolley comprises a trolley main body and a jet printing mechanism mounted on the trolley main body, and the trolley main body is slidably connected to the first lifting mechanism; the bearing table is arranged below the sliding device, and the bearing table comprises a bearing frame and a guide roller rotationally connected to the bearing frame; the unwinding device is arranged on one side of the bearing table; the winding device is arranged on the other side of the bearing table; wherein the unwinding device is used for releasing coiled materials, the guide roller is used for bearing and conveying the coiled materials released by the unwinding device, and the winding device is used for winding the coiled materials conveyed by the guide roller. The package digital printing machine is suitable for printing of coiled materials, and the printing efficiency is improved.

The present invention belongs to the field of UV digital printing and relates to data analysis technology. Specifically, it provides an automatic negative pressure circulation ink supply system, method and medium for a UV digital printing machine. The system comprises a digital printing module, an ink leakage detection module, a chromaticity detection module and a storage module. The digital printing module, the ink leakage detection module, the chromaticity detection module and the storage module are communicatively connected in sequence, and the ink leakage detection module is also communicatively connected to the storage module. The present invention can detect and analyze the printing effect during the printing process, compare the detection image of the completed printed product with the standard printed image, evaluate the printing effect based on the comparison result, adopt different processing means to perform secondary processing on the detection image according to the evaluation result of the printing effect, and provide timely feedback when the printing effect is abnormal, so as to avoid the subsequent products from being printed when the UV digital printing machine is operating abnormally.

The invention relates to the technical field of printing machinery, in particular to a screen printing high-precision positioning method based on machine vision, which comprises the following steps: step 1, constructing a collaborative calibration marking system; step 2, dynamic acquisition of deformation data: synchronously acquiring images of the first type of mark points and the second type of targets in a set time window after the scraper is separated from the screen printing plate; the mark center is positioned through a sub-pixel edge detection algorithm, and the difference value between the actual distance and the nominal distance is calculated; 3, thermal-mechanical coupling compensation parameters are generated; 4, multi-degree-of-freedom cooperative positioning is carried out, wherein motion control instructions of the substrate bearing table and the screen tensioning mechanism are generated according to the translation compensation amount and the rotation compensation angle; before the next printing period starts, positioning adjustment is completed, and the overlap ratio of the marks is verified; and 5, carrying out iterative optimization on the closed-loop error. Efficient sensing, accurate modeling and real-time compensation of multi-source errors such as thermal deformation, force-induced deformation, environmental disturbance and material characteristics in the silk-screen printing process are achieved.

The invention discloses an electronic shaft printing machine control method and system based on the Internet of Things, and the method comprises the steps: collecting a printing tension value, a color register deviation image and motor rotating speed data in the operation process of an electronic shaft printing machine in real time, and generating a multi-source synchronous data set with a timestamp; performing sub-pixel-level edge extraction on the color register deviation image, and outputting a color register error feature vector; uploading the multi-source synchronous data set and the color register error feature vector to a cloud Internet of Things platform, and generating a cooperative control parameter packet containing a tension compensation coefficient and a color register correction amount by associating a historical fault database with a material characteristic parameter; generating a rotating speed adjustment instruction set of the servo motor based on the cooperative control parameter packet; and the rotating speed adjusting instruction set is issued to the PLC control system, and rotating speed closed-loop control is executed through the servo driver. According to the embodiment of the invention, high-precision self-adaptive adjustment in the printing process can be realized.

The invention relates to the technical field of printing machine faults, and discloses a printing machine fault diagnosis method based on acoustic emission detection, which comprises the following steps of: constructing a printing machine acoustic emission signal acquisition system which comprises a plurality of acoustic emission sensors, a signal preprocessing module and a data transmission unit, the plurality of acoustic emission sensors are distributed at a key transmission part, a printing execution part and a supporting structure of the printing machine so as to synchronously collect acoustic emission original signals at different positions; the method comprises the following steps: performing multi-dimensional preprocessing on an acquired acoustic emission original signal, wherein the preprocessing comprises noise reduction processing based on a self-adaptive wavelet threshold value; acoustic emission signals of key parts of the printing machine are synchronously collected through distributed acoustic emission sensors, time domain, frequency domain and time-frequency domain features are extracted in combination with multi-dimensional preprocessing, features and position weights are dynamically given by using a fault diagnosis model fused with an attention mechanism, and accurate recognition of the fault type and position of the printing machine is achieved.

The present invention relates to the technical field of paper box production, and discloses a fast deviation-correcting paper feeding device and method for a paper box production printing press, which solves the problem that when the paper board is tilted during transportation, the position of the paper board relative to the printing press will deviate, thereby reducing the printing quality. The device comprises two support boxes above the paper feeding table, the support boxes and the paper feeding table are fixedly connected by a plurality of connecting plates, and a plurality of paper feeding components are arranged between the two support boxes. Each group of paper feeding components includes an upper rotating shaft, a lower rotating shaft and two supporting shafts arranged between the two support boxes, and the ends of the upper rotating shaft and the lower rotating shaft are rotatably connected to the two support boxes respectively; the device is convenient for conveying paper boards of different specifications according to actual needs, thereby improving the scope of application, and can perform centering conveying and deviation correction on the paper board, thereby reducing the possibility of deviation in the printing position and ensuring the printing quality.

The utility model relates to a double-line linkage transplanting mechanism of a screen printing machine, which is structurally characterized in that transmission printing platforms are uniformly arranged in a row at intervals, the bottoms of the transmission printing platforms are connected with UVW platforms, the bottoms of the UVW platforms are connected with rotary reversing mechanisms, and all the rotary reversing mechanisms are connected with the same transplanting mechanism. Printing head mechanisms arranged at intervals are arranged above the conveying printing platforms, sheet feeding mechanisms and sheet discharging mechanisms which are correspondingly arranged are vertically arranged on the two sides of the conveying printing platforms in rows, and the sheet feeding mechanisms and the sheet discharging mechanisms which correspond to each other are arranged in a row. The double-line linkage transplanting mechanism has the advantages that the number of specific mechanisms can be designed according to production requirements, the common waiting time of all parts can be effectively saved, the printing time is shortened, and the CT of the whole line is improved. The problems of compatibility of a whole piece and a half piece in printing, large deflection angle of silicon wafer feeding, inaccurate silicon wafer in-place, long roll paper replacement time of a printing platform and the like can be solved, maintenance is convenient and fast, the working efficiency is high, time and labor are saved, and the production cost can be saved.

The invention relates to the technical field of industrial Internet of Things, edge calculation, silk-screen and the like, and provides a substrate silk-screen method and equipment based on an intelligent silk-screen unit, and the method comprises the steps: configuring a feeding mechanism, a dust removal mechanism, a pre-printing alignment mechanism and a printing mechanism which are connected in sequence, and establishing an industrial Internet of Things information sensing layer and an edge gateway which are in two-way communication with the feeding mechanism, the dust removal mechanism, the pre-printing alignment mechanism and the printing mechanism. Order and formula data are received through a gateway, multi-source sensing point location real-time data are fused, a production model with a unified time reference and batch identification is constructed, and process parameters are dynamically issued. And during feeding, the model and the warping degree of the substrate are automatically recognized, and dust removal parameters are synchronously adjusted. In the printing process, screen tension, scraper stress, motor current and printing ink rheological property are monitored in real time and fused to obtain a printing ink comprehensive rheological characteristic value, scraper parameters and an ink return time sequence are cooperatively regulated according to the printing ink comprehensive rheological characteristic value, and a printing quality estimated value is output. According to the method, collaborative optimization and quality estimation of the whole printing process are achieved, and the production adaptability and consistency of product printing are improved.

The utility model discloses a printing mechanism with positioning and calibrating functions, which belongs to the technical field of printing machines and comprises a base, an n-shaped frame vertically fixed between two sides of the top of the base, a mounting plate positioned at the inner bottom of the n-shaped frame, a printing plate mounted at the bottom of the mounting plate and an air cylinder for controlling the mounting plate to lift vertically. By means of a transverse moving mechanism composed of the inverted-L-shaped rod, the first inclined face, the transverse rod, the second inclined face, the reset spring, the sliding rod and the ball, in the process that a printing plate is controlled to move downwards, movement of the side plates can be automatically controlled, the two sides of a printed product are extruded and corrected, and in addition, in the opposite moving process of the side plates, the two sides of the printed product are extruded and corrected. The two sets of end plates can be controlled to correct the front end and the rear end of a printed product at the same time in cooperation with a longitudinal moving mechanism composed of a push rod, a sliding groove and a sliding block, the four faces of the printed product are positioned and calibrated in a mechanical transmission mode, a complex control system is not needed, production and use cost is low, and practicability is higher.

The invention discloses high-concentration V0Cs direct-fired purification equipment for a drying procedure of a printing machine, and relates to the technical field of V0Cs purification, the high-concentration V0Cs direct-fired purification equipment comprises a frame body, the frame body comprises a bottom frame and an RTO furnace body on the bottom frame, an air inlet pipe, an adjusting assembly, a cleaning assembly and a startable electric push rod are installed on one side of the RTO furnace body, and the adjusting assembly and the cleaning assembly are arranged on the air inlet pipe; the connected moving plates are pushed, the moving blocks at the bottoms of the moving plates move along the moving grooves, the embedded rods sequentially move along the pushing grooves, force is applied to the filter plates through the limiting grooves, the rotating blocks rotate on the peripheries of the rotating grooves, finally, the two filter plates are folded into a V shape, the filter plate of the V-shaped structure is stable due to the fact that the embedded rods are limited by the pushing grooves, waste gas can be obviously guided to flow, and when the waste gas passes through, the waste gas is prevented from flowing. One part of the waste gas flows along the surface of the filter plate, so that the flowing path is greatly prolonged, particulate pollutants have more opportunities to be attached to the filter plate, the catching amount is increased, the treatment effect is improved, the filtered waste gas is cleaner, and the efficient and stable operation of the system is guaranteed.

The invention discloses a large digital printer control method and system based on artificial intelligence, and relates to the technical field of digital printer control, and the method comprises the steps: carrying out the sorting processing of all unexecuted tasks of a large digital printer, and determining a priority task set of the large digital printer; and carrying out information matching processing on the priority task set of the large digital printer, and determining a first priority task to be processed. According to the method, time comparison analysis is carried out on all completed tasks of the large-scale digital printing machine, priority order number types are determined, then classification processing is carried out on all uncompleted tasks of the large-scale digital printing machine according to the priority order number types, a priority task set of the large-scale digital printing machine is determined, and finally, the priority task set of the large-scale digital printing machine is determined. Information matching processing is conducted on the priority task set of the large digital printing machine, the first priority task to be processed is determined, and therefore it is guaranteed that orders with urgent processing time can be processed in advance, and it is guaranteed that the orders can be completed on time.

The invention discloses a logarithmic attenuation curve-based winding tension control and implementation method and system for a reel material printing machine, and belongs to the technical field of reel material printing equipment control. The method comprises the following steps that the initial angular speed of a winding motor is set, working parameters of a winding unit are collected, and then a logarithmic attenuation tension control curve is constructed according to characteristic parameters of a winding base material; calculating a set tension value by combining the collected working parameters with a logarithmic attenuation tension control curve; determining a tension permissible fluctuation interval according to the calculated set tension value, and then judging whether the collected working parameters are in the permissible fluctuation interval or not; if yes, the angular speed of the winding motor is not adjusted, and if not, the angular speed of the winding motor is adjusted till the collected working parameters are within the allowable fluctuation interval. The method solves the technical problem that the tension of the base material in the existing winding unit is difficult to display and accurately control.

The utility model discloses an automatic cutting structure of a paper gravure printing machine, which relates to the technical field of printing machines, and comprises an unwinding frame, a first unwinding seat and a second unwinding seat, the top end of the inner wall of the unwinding frame is rotatably connected with the first unwinding seat, and the middle part of the inner wall of the unwinding frame is rotatably connected with the second unwinding seat; a winding frame is arranged on one side of the outer wall of the unwinding frame, rocker arms are rotationally connected to the two sides of the middle of the winding frame, a base is connected to the middle of the top end of the base, mounting bases are slidably connected to the two sides of the outer wall of the base, the number of the mounting bases is two, the outer wall of one mounting base is connected with a first cutting knife, and the outer wall of the other mounting base is connected with a second cutting knife. Transmission pins are fixedly connected to the two sides of the outer wall of the mounting base, and rotating bases are slidably connected to the outer walls of the transmission pins. According to the automatic cutting structure of the paper photogravure press, the cutters can be alternately switched on line, the cutters can be replaced without shutdown of the whole machine, and the non-planned shutdown time is shortened.

The invention belongs to the technical field of equipment process parameter optimization, and particularly relates to an SMT printer process parameter intelligent optimization method based on multi-algorithm fusion, and the method comprises the steps: firstly carrying out the preliminary parameter screening and data collection through the DOE, and building a high-quality data set; building a printing quality prediction model by using an artificial intelligence algorithm Gaussian process regression model; and finally, an operation planning optimization algorithm is introduced, multi-target production parameter decision making is carried out under multiple constraint conditions, a system integrating the algorithms is established, target parameters are received through a man-machine interaction interface, an optimization process can be automatically executed, and an optimal parameter combination is output to the SMT printing machine. The method has a very good effect when solving the problem of printer parameter optimization in the existing SMT industry, and compared with the existing printer parameter optimization method, the method has higher efficiency and precision and stronger robustness, and can better achieve the effect of parameter optimization through data driving and dynamic adaptation.

The utility model discloses a flexible printing machine automatic register device which comprises a positioning plate, a fixing frame is fixedly installed on one side of the upper portion of the outer wall of the positioning plate, a telescopic mechanism capable of moving in a telescopic mode is arranged on the inner wall of the fixing frame, and a limiting mechanism is installed on one side of the inner wall of the telescopic mechanism in a connected mode. A correcting mechanism is fixedly mounted on one side of the lower portion of the outer wall of the telescopic mechanism. According to the automatic register device of the flexible printing machine, the telescopic mechanism is arranged, meanwhile, the correcting mechanism is arranged in a matched mode, in this way, automatic register can be conducted on flexible printing paper, and in this way, adjustment of the transverse position and the longitudinal position of the flexible printing paper can be achieved during adjustment.