10 results about "Printing registration" patented technology

The utility model discloses a silk-screen printing alignment device, and particularly relates to the technical field of silk-screen alignment, which comprises a silk-screen mounting frame, an L-shaped support frame is arranged outside one side of the silk-screen mounting frame, a plurality of limiting guide rails are arranged at the upper end of one side of the L-shaped support frame, and an adjusting sliding block is arranged outside the upper end of the L-shaped support frame. A concave sliding groove is formed in the lower end of the adjusting sliding block, and a mounting sleeve is arranged on one side of the adjusting sliding block. An alignment laser lamp is arranged in the mounting sleeve, and a square mounting groove is formed in one side of the L-shaped supporting frame. During actual use, under the corresponding arrangement state of the adjusting sliding block, the adjusting knob, the concave sliding groove, the mounting sleeve and the alignment laser lamp, the adjusting sliding block can be adjusted, the adjusting knob is rotated to fix the adjusting sliding block, a light beam irradiated by the alignment laser lamp is aligned with a workpiece needing to be printed, and the alignment laser lamp can be conveniently and rapidly adjusted. And therefore, screen printing alignment is more convenient.

The invention relates to a printing registration precision control device, and relates to the technical field of printing registration, the printing registration precision control device comprises a mounting seat, a group of supporting plates are arranged on the mounting seat, a roller body is rotatably arranged between the supporting plates, a driving assembly is arranged between the roller body and one of the supporting plates, the driving assembly is used for driving the roller body to rotate, and the roller body is driven by the driving assembly to rotate. A supporting seat is jointly arranged on the supporting plates, a radial assembly is arranged between the supporting seat and the mounting seat and used for adjusting the position of the roller body in the radial direction of the roller body, and an axial assembly is arranged between the radial assembly and the mounting seat and used for adjusting the position of the roller body in the axial direction of the roller body. The method has the effect of reducing the reduction of printing registration precision.

The application discloses a thick-film multi-plate integrated ceramic substrate and a manufacturing method thereof. The thick-film multi-plate integrated ceramic substrate comprises a ceramic substrate frame (1) with two perpendicular positioning edges (2), a group of through holes (3) arranged in the ceramic substrate frame (1), and a circuit substrate (4) arranged in each through hole (3). The edge of the circuit substrate (4) is fixedly connected with the corresponding through hole (3) through at least two connecting parts (5). Each circuit substrate (4) has a certain size relationship with each positioning edge (2). The circuit substrate (4) is a circuit forming substrate provided with electronic components. The application solves the consistency problem of printing registration patterns through a process edge and an alignment symbol. The multi-plate structure eliminates the positioning error of a single substrate. A plurality of single plates are positioned at a time during one-time pattern printing, single plate resistance automatic laser fine adjustment is realized, the spacing between circular substrates is set through a laser fine adjustment program, and first-end-to-last-end connection multi-plate uninterrupted automatic fine adjustment is realized.

The invention discloses a printing registration method based on machine vision, a controller and a storage medium, and relates to the field of printing device.The printing registration method comprises the steps that in response to a registration trigger signal, a sliding table is controlled to drive an image collection device to collect a registration image between any set of adjacent sprayers, and multiple registration images of each set of adjacent sprayers are obtained, identifying a nozzle identifier in the registration image and two calibration dot matrixes representing a nozzle spraying area, respectively calculating a difference value between a distance between calibration points at each corresponding position and a preset distance between a group of adjacent nozzles, and determining a deviation value of each nozzle of the group of adjacent nozzles based on a mean value of each difference value, and correcting the spraying position coordinates of the nozzle based on the deviation value of the nozzle. According to the method, the registration image between any group of adjacent nozzles can be acquired based on one image acquisition device, the system cost is reduced, the nozzle deviation value is calculated based on the difference value between the calibration dot matrix representing the spraying area of the nozzle and the preset distance between the adjacent nozzles, and the registration precision is improved.

This utility model relates to a multi-unit stroboscopic detection device for printing registration, belonging to the technical field of stroboscopic detection equipment. It includes a printing press, a conveyor frame, and a stroboscopic detector. The printing press has a protective cleaning structure and a liquid outlet structure on its right side. The protective cleaning structure includes a mounting frame fixedly connected to the top of the conveyor frame. Two baffles are fixedly connected inside the mounting frame. Support plates are fixedly connected to both the front and rear sides of the mounting frame. A slide table is slidably connected to the top of the support plates. A dustproof pad is adhered to the top of the front slide table, and a dust cleaning pad is adhered to the top of the rear slide table. In this multi-unit stroboscopic detection device for printing registration, when the stroboscopic detector is not in use, the dustproof pad and the slide table ensure that the dustproof pad adheres to the detection surface of the stroboscopic detector, preventing airborne dust from adhering to its outer wall.

This invention discloses a gravure printing multi-color registration active disturbance rejection control method and system based on the gray wolf optimization algorithm. The method first establishes a dynamic model including the registration error dynamic equation and the tension coupling equation to characterize the system's strong multivariable coupling characteristics. Next, a linear active disturbance rejection controller is designed, utilizing its linearly extended state observer to estimate and compensate for the total system disturbance in real time. Based on this, the gray wolf optimization algorithm is introduced, mapping the controller's core parameters to gray wolf position vectors. A fitness function is constructed using the registration error for online adaptive optimization, and the optimized parameters are updated to the controller in real time, generating drive commands to adjust the printing plate roller speed and correct the registration error. Finally, closed-loop control is achieved through sensor feedback. This invention overcomes the shortcomings of traditional methods, which rely on manual experience and have poor adaptability, by using an algorithm to self-tune parameters online. This significantly improves the control accuracy, adaptability, and robustness of the gravure printing registration system under complex disturbances.

To provide a printing alignment technique for obtaining an appropriate reaction between ink and a processing liquid.SOLUTION: A control device comprises control means that performs control of forming multiple printing-alignment patterns on a recording medium on the basis of a first printing-alignment mode in which a second pattern formed with a processing liquid on the basis of second image data is partially shifted relative to a first pattern formed with ink on the basis of first image data. The first pattern includes a reference pattern used for alignment with the second pattern, and the second pattern includes an adjustment pattern used for alignment with the first pattern and a periodic pattern in which the ink and the processing liquid react. A portion formed with a partial shift in the second pattern is the adjustment pattern.SELECTED DRAWING: Figure 6

The invention belongs to the technical field of flexographic printing machines, and discloses a flexographic printing machine with an automatic tension adjusting function, which comprises a flexographic printing machine body, an unwinding assembly is fixedly arranged on the flexographic printing machine body, and a tension adjusting part is further arranged on the flexographic printing machine body; real-time detection and automatic response of tension fluctuation are achieved through a split type rubber groove roller, a built-in tension sensor, an arc angle plate, a ball shaft and a spring linkage mechanism, the diameter of the rubber groove roller is accurately adjusted according to the tension insufficiency degree, a second motor drives the arc angle plate to rotate to abut against the ball shaft, and an L-shaped arc panel is pushed to enable a roller body to be separated and expanded. The gap that a traditional pure mechanical structure cannot realize micro tension adjustment is filled, the rubber groove roller adopts a split type flexible design and is matched with a non-rigid contact expanding mode, tensile fracture or extrusion damage to thin materials (such as films and paper) is avoided in the tension compensation process, meanwhile, the problem that the materials are loose and wrinkled is thoroughly solved, and the service life of the rubber groove roller is prolonged. And the printing registration precision is improved.

This invention discloses a method for modeling and decoupling control of longitudinal registration error in roll-to-roll printing systems under color-skipping conditions, a roll-to-roll printing press, and a computer program product. The method includes: establishing a registration error model based on variable mesh length according to the roll material transport characteristics and printing unit dynamic parameters under color-skipping conditions in a roll-to-roll printing press; analyzing the change in effective printing length between adjacent printing units caused by selective shutdown, and deriving the registration error models for the first printing unit and subsequent units after color skipping; integrating the coupling relationship between tension fluctuation, angular velocity adjustment, and mesh elastic deformation into the registration error model to construct a registration error model for the complete system under color-skipping conditions; constructing a selective decoupling compensator based on Lyapunov stability theory to compensate for coupling disturbances caused by color skipping; and achieving roll-to-roll color-skipping printing registration accuracy control through the selective decoupling compensator combined with pre-color-skipping registration control. This invention significantly improves the registration accuracy of roll-to-roll multi-color printing.

This invention discloses a multi-station collaborative control and energy optimization method for tube printing, belonging to the field of industrial automation control technology. The method includes: constructing an event-triggered distributed collaborative control network; each station generating and reporting instantaneous time deviations when a physical completion event is triggered; a central collaborative optimizer solving for the optimal speed adjustment sequence based on model predictive control; establishing an energy optimization objective function based on the optimal speed sequence and ink layer thickness data using a long short-term memory network curing degree estimation model, and solving for the optimal power sequence under the premise of satisfying curing degree constraints and temperature constraints; the UV curing station executing the optimal power command and performing rolling optimization driven by events. This invention solves the technical problems of poor multi-station collaboration and low energy utilization in existing tube printing production lines, achieving global energy consumption minimization while ensuring printing registration accuracy and curing quality.