CN-121733961-B - Method and system for managing digital printing production line of aluminum decoration

CN121733961BCN 121733961 BCN121733961 BCN 121733961BCN-121733961-B

Abstract

The application relates to the technical field of digital printing production line management, and provides a method and a system for managing digital printing production line of aluminum decorative parts, wherein the method comprises the steps of obtaining a plurality of first information; the first information comprises order scheduling information of a production line for producing aluminum printed products, state information of an ink supply device for supplying ink to the aluminum printed products on the production line within a preset time period before the current moment and ink information of the ink in the ink supply device, microscopic quality characteristic information of the aluminum printed products is determined, the microscopic quality characteristic information is used for indicating defects of the aluminum printed products, defect cause information which causes the microscopic quality characteristic information of the aluminum printed products to exist is determined according to the microscopic quality characteristic information, the order scheduling information and the state information of the ink supply device, and production optimization decision information of the production line is determined according to the defect cause information and the ink information. By the scheme, the printing efficiency of the digitally-printed aluminum decorating part can be improved.

Inventors

ZHENG XINBIN
Rov Temerich

Assignees

安德佳（福建）铝饰科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260227

Claims (10)

1. A method for managing a digital printing production line for aluminum decorative parts, comprising the steps of: The method comprises the steps of obtaining a plurality of first information, wherein the plurality of first information comprises order scheduling information of a production line for producing aluminum printed products, state information of an ink supply device for supplying ink to the aluminum printed products on the production line within a preset time before the current time and ink information of ink in the ink supply device; Determining microscopic quality characteristic information of the aluminum printed product, wherein the microscopic quality characteristic information is used for indicating defects of the aluminum printed product; determining defect cause information which causes the aluminum printed product to have the microscopic quality characteristic information according to the microscopic quality characteristic information, the order scheduling information and the state information of the ink supply device; And determining production optimization decision information of the production line according to the defect cause information and the ink information.
2. The method of managing a digital printing production line for aluminum decorative items of claim 1, wherein determining microscopic quality characteristic information of the aluminum printed product comprises: acquiring a product image of the aluminum printed product; Determining the distribution density of ink points in the product image and the distribution discrete degree index of a color channel histogram of the product image according to the product image; When the distribution density of the ink dots is larger than a preset density threshold value, determining microscopic quality characteristic information of the aluminum printing product to comprise ink dot splashing; And when the distribution discrete degree index is larger than a preset discrete degree index threshold value, determining that microscopic quality characteristic information of the aluminum printing product comprises uneven color.
3. The method for managing a digital printing production line for aluminum decorative items according to claim 1, wherein the process for acquiring status information of an ink supply device for supplying ink to the aluminum printing product on the production line for a preset period of time before the current time comprises the steps of: The method comprises the steps of obtaining a printing complexity index of an aluminum printing product and a first preset corresponding relation, wherein the first preset corresponding relation comprises a one-to-one corresponding relation between a plurality of printing complexity index ranges and a plurality of time lengths; taking the duration corresponding to the printing complex index range in which the printing complex index is located in the first preset corresponding relation as the preset duration; Order scheduling information on a production line for producing the aluminum printed products and state information of an ink supply device for supplying ink to the aluminum printed products in a preset time period before the current time are obtained.
4. A method of managing digital printing production lines for aluminum decorative items as defined in claim 3 wherein obtaining a printing complexity index for said aluminum printed products comprises: Acquiring the process duration of each manufacturing process in a plurality of manufacturing processes of the aluminum printed product; Normalizing the process duration of each manufacturing process to obtain a duration index of each manufacturing process; and taking the product of the weighted sum of the duration indexes of the plurality of manufacturing procedures and the number of the plurality of manufacturing procedures as the printing complexity index of the aluminum printing product.
5. The method of managing a digital printing production line for aluminum trim parts according to claim 2, wherein the order schedule information includes a production start time of a first order, which is an order corresponding to the aluminum printing product, and a production end time of a second order, which is a last order of the first order, and determining defect cause information, which causes the aluminum printing product to have the microscopic quality feature information, based on microscopic quality feature information, the order schedule information, and status information of an ink supply device, includes: taking the duration between the production start time of the first order and the production end time of the second order as the standby duration of the ink supply device; and determining defect cause information which causes the aluminum printing product to have the micro quality characteristic information according to the standby time, the micro quality characteristic information and the state information of the ink supply device.
6. The method of managing a digital printing production line for aluminum decorative items according to claim 5, wherein determining defect cause information causing the aluminum printing product to have the microscopic quality feature information based on the standby time period, microscopic quality feature information, and state information of an ink supply device, comprises: judging whether the standby time length is greater than a preset first time length threshold value or not; When the standby time length is smaller than or equal to a preset first time length threshold value, determining that the defect cause information is poor in quality of the ink raw material; and when the standby time length is larger than a preset first time length threshold value, determining the defect cause information according to the microscopic quality characteristic information and the state information of the ink supply device.
7. The method of managing a digital printing production line for aluminum decorative parts according to claim 6, wherein the status information includes a circulation operation time period of an ink circulation device inside the ink supply device within the preset time period and a heating temperature of an ink heating device inside the ink supply device, and determining the defect cause information based on microscopic quality feature information and the status information of the ink supply device when the standby time period is longer than a preset first time period threshold value comprises: when the microscopic quality characteristic information is color unevenness, judging whether the cycle working time length is greater than a preset second time length threshold value; When the circulating working time length is larger than a preset second time length threshold value, determining that the defect cause information is ink circulating difference, otherwise, determining that the defect cause information is ink raw material quality difference; When the microscopic quality characteristic information is ink point splashing, judging whether the heating temperature is greater than a preset temperature threshold value or not; And when the heating temperature is smaller than a preset temperature threshold, determining that the defect cause information is that the ink temperature is low, otherwise, determining that the defect cause information is that the ink raw material quality is poor.
8. The method for managing a digital printing production line of aluminum decorative parts according to claim 7, wherein when the defect cause information is a poor ink circulation, the production optimization decision information includes a circulation working time adjusted by the ink circulation device, the ink information is an ink type of ink, and determining the production optimization decision information of the production line according to the defect cause information and the ink information includes: acquiring a preset second corresponding relation, wherein the second corresponding relation comprises a one-to-one corresponding relation between a plurality of ink types and a plurality of circulation duration adjustment coefficients; Taking a circulation time length adjustment coefficient corresponding to the ink type of the ink in the preset second corresponding relation as a target circulation time length adjustment coefficient, wherein the circulation time length adjustment coefficient is larger than 1; And taking the product of the circulation working time before the adjustment of the ink circulation device and the target circulation time adjustment coefficient as the circulation working time after the adjustment of the ink circulation device.
9. The method according to claim 7, wherein when the defect cause information is that the ink temperature is low, the production optimization decision information includes a heating temperature adjusted by the ink heating device, the ink information is a ratio of volatile components in ink, and determining the production optimization decision information of the production line according to the defect cause information and the ink information includes: acquiring a preset third corresponding relation, wherein the third corresponding relation comprises a one-to-one corresponding relation between a plurality of duty ratio ranges and a plurality of temperature adjustment coefficients; Taking a temperature adjustment coefficient corresponding to a duty ratio range where the duty ratio of the volatile component is located in the preset third corresponding relation as a target temperature adjustment coefficient, wherein the temperature adjustment coefficient is larger than 1; And taking the product of the heating temperature before the adjustment of the ink heating device and the target temperature adjustment coefficient as the heating temperature after the adjustment of the ink heating device.
10. A digital printing production line management system for aluminum decorative parts is characterized by comprising an acquisition device and a processing device; The system comprises an acquisition device, a processing device and a processing device, wherein the acquisition device is used for acquiring a plurality of first information, wherein the plurality of first information comprises order scheduling information of a production line for producing aluminum printed products, state information of an ink supply device for supplying ink to the aluminum printed products on the production line within a preset time before the current moment and ink information of the ink in the ink supply device; the processing device is used for determining microscopic quality characteristic information of the aluminum printed product, wherein the microscopic quality characteristic information is used for indicating defects of the aluminum printed product; The processing device is used for determining defect cause information which causes the aluminum printing product to have the microscopic quality characteristic information according to the microscopic quality characteristic information, the order scheduling information and the state information of the ink supply device; The processing device is used for determining production optimization decision information of the production line according to the defect cause information and the ink information.

Description

Method and system for managing digital printing production line of aluminum decoration Technical Field The application relates to the technical field of digital printing production line management, in particular to a method and a system for managing digital printing production line of aluminum decorative parts. Background In modern industrial production environments, digital printing lines for aluminium decorative pieces are often equipped with highly automated scheduling programs, the core function of which is to fine-plan daily production tasks, ensure a balanced distribution of the production equipment load, and ensure on-time delivery of customer orders. However, with the significant increase in market demand for product personalization and customization, customer order patterns have shifted from large, low-variety to multiple-variety, low-batch. This variation presents unprecedented challenges for flexibility and adaptability of the production line. In the face of increasingly diverse and fragmented small batch order structures, existing automated schedulers tend to adopt centralized processing strategies in order to maintain and improve overall production efficiency, and aggregate production tasks with similar material characteristics or process flow requirements, so as to minimize adjustment time loss caused by frequent switching of production lines between different tasks. This strategy results in the production of certain specific color or special formulation digital printing inks being relatively delayed and the corresponding ink supply units being inactive for a long period of time. In response to the energy conservation goal, the production management system will switch these ink supply units to a low power standby mode, shut down or reduce the frequency of operation of the ink circulation pump, and suspend the ink heating assembly. After the ink supply unit enters a standby mode, the ink pipeline micro-circulation system and the heating component in the ink supply unit stop working or greatly reduce the operation strength, so that pigment particles suspended in the ink slightly settle, and particularly in the areas of pipeline bending positions, the vicinity of joints, the bottom of the ink box and the like. Over time, these areas may form areas of ink with too high or too low a local pigment concentration, causing the ink to become physically uneven, such as local viscosity increases or decreases, and surface tension changes. When the scheduler wakes up these deferred production tasks again, the ink supply unit resumes from the standby mode. However, system recovery protocols are typically optimized based on conventional, shorter standby times, resulting in ink that becomes non-uniform at the end of the line due to long standby times may not have enough time to fully recover a uniform state. When the ink with changed physical properties is ejected by the piezoelectric nozzle of the digital printer, the ink drop forming process is disturbed, so that quality problems such as poor color uniformity, reduced pattern edge definition or slight ink point splashing occur in local areas of the printed pattern. The high-precision online quality inspection camera system at the end of the production line can capture these printing defects, but due to the time of occurrence, the non-continuity of batches and specific locations and seemingly random nature of the defects, existing production management systems often record them as isolated quality anomalies only. It is difficult for the manager to establish clear causal links between these discrete and poorly correlated quality data and deep causes of upstream automated scheduling strategies, standby mode recordings of specific ink supply units, and changes in ink physical properties. This gap in information results in a failure of the manager to effectively identify the root source of the problem, thus resulting in a sustained failure of the rejection rate and rework rate to be fundamentally improved, affecting the overall management efficiency of the production line, the on-time delivery capacity of the product, and customer satisfaction. Disclosure of Invention The application provides a method and a system for managing an aluminum decoration digital printing production line, which aim to solve the problems that when the existing aluminum decoration digital printing production line faces multiple varieties and small batches of orders, the physical properties of ink are uneven due to long-time standby of an ink supply unit, so that the defect of printing quality is caused, and the existing management system is difficult to associate quality data with deep layer reasons, so that the rejection rate and the rework rate cannot be improved fundamentally. In order to achieve the above purpose, the application adopts the following technical scheme: A first aspect provides a digital printing production line management method for aluminum decoration parts, which com