Abstract

A screen printing manufacturing method for a patterned thermal insulation panel applicable in the outer wall of a building. The patterned thermal insulation panel comprises: a metal decorative layer, a substrate, and a thermal insulation layer arranged between the metal decorative layer and the substrate. The method comprises a step of screen printing of a metal decorative panel, where a flattening apparatus is arranged at the bottom part of a printing platform on which a to-be-printed metal decorative panel is placed, and the surface of the metal decorative panel is flattened prior to screen printing. The flattening apparatus allows a scraper to perform ink transfer under the effect of a uniform force, thus reducing the difficulty of printing.

IPC Classes  ?

• B41F 15/16 - Printing tables
• B41M 1/12 - Stencil printingSilk-screen printing
• E04F 13/075 - Coverings or linings, e.g. for walls or ceilings composed of covering or lining elementsSub-structures thereforFastening means therefor composed of specially adapted, structured or shaped covering or lining elements for insulation or surface protection, e.g. against noise or impact

Abstract

A roller coating manufacturing method for a patterned thermal insulation panel applicable in the outer wall of a building. A pattern is printed on a manufactured metal decorative panel and then a thermal insulation layer is mounted between the metal decorative panel and a substrate to form the patterned thermal insulation panel. The roller diameter and process speed of each roller in a roller coating unit are inputted into a PLC control module. A theoretical roller surface linear speed for each roller is calculated on the basis of the process speed and the roller diameter of each roller. A server control module having an encoder is used to control the actual roller surface linear speed to be in consistence with the theoretical roller surface linear speed. Also, the distance of color misalignment is determined via a secret code identification module to correct the process speed. This solves the problem of inconsistency between the roller surface linear speed and the process speed in a printing process of a gravure press.

IPC Classes  ?

• B41M 1/28 - Printing on other surfaces than ordinary paper on metals
• B41F 15/04 - Manually-operable devices for multicolour printing
• B44C 1/24 - Pressing or stamping ornamental design on surfaces
• B41F 35/06 - Cleaning arrangements or devices for offset cylinders

Abstract

Provided is an advanced method for producing a roller-coated color steel plate with multiple colors and patterns. In one aspect, a PLC control module in a servo control system calculates a theoretical roller surface linear speed of each roller in a roller-coating unit by collecting the process speed and the rotation speed of each roller in the roller-coating unit, and makes the theoretical roller surface linear speed consistent with the process rotation speed; in another aspect, a servo control module with an encoder collects an actual roller surface linear speed of each roller in the roller-coating unit, and inputs an actual roller surface linear speed signal into a PLC control system, so that the PLC control system can compare the actual roller surface linear speed with the theoretical roller surface linear speed, and adjust the current frequency, till the actual roller surface linear speed is consistent with the theoretical roller surface linear speed. The control method ensures that the actual roller surface linear speed is consistent with the process rotation speed, so that it is not required to halt the production for adjustment in the production process, thereby improving the production efficiency.

IPC Classes  ?

• B44C 1/175 - Transfer using solvent

Abstract

Provided is a method for producing a steel plate with patterns by combining roller-coating printing and screen printing. By combining the roller-coating printing and the screen printing, an accurate ground color and pattern can be obtained, and also a thick and three-dimensional printed layer can be obtained. In addition, a servo control system for controlling the rotation speed of each roller in a roller-coating unit and the starting time is applied in the roller-coating section, thereby ensuring that the actual roller surface linear speed is consistent with the process rotation speed; in this way, it is not required to halt the production for adjustment in the production process, thereby improving the production efficiency.

IPC Classes  ?

• B41F 33/00 - Indicating, counting, warning, control or safety devices
• B41F 33/16 - Programming systems for automatic control of sequence of operations
• B41M 1/28 - Printing on other surfaces than ordinary paper on metals
• B41M 1/14 - Multicolour printing
• B41M 1/10 - Intaglio printing

Abstract

Provided is a method for producing a steel plate with single-ground-color patterns by combining roller-coating printing and screen printing. By combining the roller-coating printing and the screen printing, an accurate ground color and pattern can be obtained, and also a thick and three-dimensional printed layer can be obtained. In addition, a servo control system for controlling the rotation speed of each roller in a roller-coating unit and the starting time is applied in the roller-coating section, thereby ensuring that the actual roller surface linear speed is consistent with the process rotation speed; in this way, it is not required to halt the production for adjustment in the production process, thereby improving the production efficiency.

IPC Classes  ?

• B41M 1/12 - Stencil printingSilk-screen printing
• B41F 15/12 - Machines with auxiliary equipment, e.g. for drying printed articles
• B41F 15/20 - Supports for workpieces with suction-operated elements
• B41F 33/00 - Indicating, counting, warning, control or safety devices
• B41F 19/00 - Apparatus or machines for carrying out printing operations combined with other operations
• B41F 23/00 - Devices for treating the surfaces of sheets, webs or other articles in connection with printing

Abstract

Disclosed is a method of producing a variegated steel plate with a multicoloured pattern, comprising the following process steps in succession: preparing a steel strip to be printed; using a first roller coating unit to perform a first roller coating transfer on the steel strip to be printed; and using a second roller coating unit to perform a second roller coating transfer on the steel strip to be printed. In the step of using a first roller coating unit to perform a first roller coating transfer on the steel strip to be printed, the actual roll surface linear velocity is adjusted to be consistent with a theoretical roll surface linear velocity, and the theoretical roll surface linear velocity is consistent with the process speed, thereby ensuring that the actual roll surface linear velocity is consistent with the process rotational speed, such that there is no need to stop the line to make adjustments during the production process, increasing production efficiency.

IPC Classes  ?

• B44C 1/175 - Transfer using solvent
• B05D 5/06 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects

Abstract

The present invention provides a control method used in a roller coating production line, wherein by calculating and controlling the theoretical roll surface linear velocity and actual roll surface linear velocity of each roller in a roller coating unit, the rotational speed of each roller is kept consistent with the process speed, increasing production efficiency. At the same time, calculating a pattern misplacement distance in repeat printing by means of code recognition technology, thereby adjusting the rotational speed of each roller, achieves lifelike and holonomic patterning in multicoloured printing and extends the printed length of the pattern.

IPC Classes  ?

• B41F 33/00 - Indicating, counting, warning, control or safety devices
• B41F 33/16 - Programming systems for automatic control of sequence of operations
• B41M 1/28 - Printing on other surfaces than ordinary paper on metals
• B41M 1/14 - Multicolour printing
• B41M 1/10 - Intaglio printing