CN-121998329-A - Die cutting design method and device for calendaring roll

CN121998329ACN 121998329 ACN121998329 ACN 121998329ACN-121998329-A

Abstract

The embodiment of the invention provides a method and equipment for designing die cutting of a rolled coil, and belongs to the technical field of die cutting. The method comprises the steps of obtaining rolled coil die cutting design data, storing the data into a database, wherein the data comprise raw coil data and order data, the raw coil data comprise raw coil areas, the order data comprise order areas, arranging raw coil and order according to the raw coil areas and the order areas in descending order of areas respectively to obtain a priority processing queue based on the raw coil areas and the order areas, obtaining raw coil and order from the priority processing queue based on a greedy algorithm to obtain a die cutting design scheme, and outputting the die cutting design scheme for confirmation of service personnel. The method is used for reducing labor cost and time cost in the process of die cutting of the calendaring roll.

Inventors

Ma chenxing
MA JUN
Lv Kaifu
XU YI
WANG HONGHONG

Assignees

中冶京诚数字科技(北京)有限公司
中冶京诚工程技术有限公司

Dates

Publication Date: 20260508
Application Date: 20260119

Claims (11)

1. A calender roll die cut design method, the method comprising: obtaining calendaring roll die cutting design data, and storing the data into a database, wherein the data comprises raw material roll data and order data, the raw material roll data comprises raw material roll areas, and the order data comprises order areas; Based on the raw material coiled material area and the order area, respectively arranging the raw material coiled materials and the orders in an area descending order to obtain a priority processing queue; Obtaining raw material coiled materials and orders from the priority processing queue based on greedy algorithm to obtain a die cutting design scheme, and Outputting the die cutting design scheme for confirmation of service personnel.
2. The method of claim 1, wherein the calender roll die cut design data comprises raw roll basic information, raw roll pin hole information, and order information, wherein, The raw material roll basic information comprises a raw material roll number, an alloy roll number, a raw material roll length, a raw material roll width and a raw material roll thickness; the raw material roll pinhole information comprises raw material roll number, pinhole size, pinhole length direction position and pinhole width direction position, and The order information comprises a required quantity, required alloy, required thickness, required width, required length, lug area width, lug area pinhole density requirement, carbon coating area width and carbon coating area pinhole density requirement.
3. The method of claim 2, wherein the sorting the raw web and orders in decreasing order of area based on the raw web area and the order area, respectively, to obtain a priority processing queue comprises: preprocessing the die cutting design data of the rolled coil; For each raw material coiled material, calculating to obtain the corresponding raw material coiled material area based on the raw material coiled length and the raw material coiled width; for each order, calculating the corresponding order area based on the required width and the required length, and And arranging all the raw material coiled materials in a descending order based on the raw material coiled material area, and arranging all the orders in a descending order based on the order area to obtain the priority processing queue.
4. The method of claim 2, wherein obtaining die cut designs based on greedy algorithm for raw web and orders from the priority queue comprises obtaining one raw web and one order at a time from the priority queue and performing the following process until raw web or order in the priority queue is exhausted: performing feasibility assessment on the combination of the raw material coiled material and the order; If the combination passes the feasibility assessment, performing a surface quality constraint verification on the combination, and If the combination passes the surface quality constraint verification, a cutting scheme is designed based on the combination.
5. The method of claim 4, wherein the feasibility assessment of the combination of the stock rolls and the order comprises: calculating feasibility along the length direction and the width direction in parallel, judging that the combination passes the feasibility evaluation if both directions meet the feasibility, And calculating the number of the cutting sections of the raw material coiled material along the direction and the number of the finished products which can be accommodated along the other direction for each direction, and judging that the direction is feasible if the number of the finished products which can be accommodated is larger than one.
6. The method of claim 5, wherein surface quality constraint verification of the combination comprises performing the following for each of the directions: According to the width of the lug area and the width of the carbon coating area, carrying out area division on the raw material coiled material to obtain a lug area and a carbon coating area; Calculating pinhole density index of each region after region division, and Judging whether all the lug areas meet the pinhole density requirements of the lug areas, judging whether all the carbon-coated areas meet the pinhole density requirements of the carbon-coated areas, and if so, judging that the direction passes the surface quality constraint verification.
7. The method of claim 5, wherein designing a cutting scheme based on the combination comprises: Calculating the material utilization rate corresponding to the cutting scheme in each direction, wherein the material utilization rate is the ratio of the total area of the finished product to the area of the raw material, and And taking the cutting scheme in the direction with the highest material utilization rate as an executed cutting scheme.
8. The method according to claim 4, wherein the method further comprises: establishing a resource state table, wherein the resource state table comprises a raw material coiled material table and an order table, the raw material coiled material table comprises the residual available size and the use state of each raw material coiled material, and the order table comprises the unfinished number of each order; after each time one of the cutting schemes is obtained, the following processing is performed: calculating the actual production quantity of the cutting scheme and updating the order form based on the actual production quantity, and Judging whether the raw material coiled material is left or not, if the raw material coiled material is left, marking the use state of the raw material coiled material as full use in the raw material coiled material table, if the raw material coiled material is left, calculating the left usable size of the raw material coiled material, and updating the raw material coiled material table based on the left usable size of the raw material coiled material.
9. The method of claim 8 further including adding the remaining stock rolls to the priority queue and queuing at the forefront of the queue when there is a remaining stock roll.
10. The method of claim 8, wherein outputting the die cut design comprises generating a report based on the die cut design, the report comprising: cutting scheme, material utilization rate and total waste area statistics of each raw material coiled material; Completion status of each order, and Overall raw material utilization, order satisfaction, and algorithm execution performance statistics.
11. An apparatus for calender roll die-cutting design comprising a memory and a processor, wherein the processor is configured to run a program, wherein the program is configured to perform the method of any of claims 1-10.

Description

Die cutting design method and device for calendaring roll Technical Field The invention relates to the technical field of die cutting, in particular to a method and equipment for designing die cutting of a calendaring roll. Background The die cutting of the nonferrous metal rolled coil refers to the process of cutting the raw material rolled coil according to specific size and shape to obtain a finished product, thereby meeting the requirements of different orders. In many cases, customer requirements for die cut products include not only size, shape, but also surface quality of the finished roll, such as surface pinhole size, number, distribution, etc., meeting the proposed standards. Therefore, the die cutting design is needed to be carried out on the rolled coil, so that the utilization rate of raw materials is maximized and the waste is reduced on the premise of ensuring that the quality of a finished product meets the requirements. The current calendaring roll surface quality defect detection has formed a mature technical scheme, and can realize accurate detection and classification of micron-sized pinhole defects under high-speed production conditions by combining a high-resolution optical camera with multi-angle light source imaging and relying on a CNN-based hybrid intelligent algorithm. With the support of such technology, nonferrous metal calendaring enterprises can utilize detection equipment to store the surface pinhole data of all finished products produced in computer equipment, thereby allowing the tasks of surface quality analysis, die cutting design and the like to be performed by utilizing the data. The existing semiautomatic die cutting design technology utilizes a set of special system, and the die cutting design is completed by manually operating the system roll by roll. The system completes the die cutting design work of the single calendaring roll through three links of data synchronization, surface quality defect visualization and manual die cutting design. However, the above solution in the prior art is low in efficiency, and when a business person faces a large number of orders, the business person can only complete the die-cutting design roll by roll, so that a large amount of labor cost and time cost are required to be input. Disclosure of Invention The embodiment of the invention aims to provide a method and equipment for designing die cutting of a rolled coil, which are used for reducing labor cost and time cost in die cutting of the rolled coil. In order to achieve the above purpose, according to a first aspect, an embodiment of the present invention provides a method for designing die cutting of a rolled coil, which includes obtaining die cutting design data of the rolled coil, storing the data in a database, wherein the data includes raw coil data and order data, the raw coil data includes raw coil area, the order data includes order area, the raw coil and the order are arranged in descending order of area based on the raw coil area and the order area respectively to obtain a priority processing queue, obtaining raw coil and order from the priority processing queue based on a greedy algorithm to obtain a die cutting design scheme, and outputting the die cutting design scheme for confirmation of service personnel. Optionally, the calendering roll die cutting design data comprises raw material roll basic information, raw material roll pinhole information and order information, wherein the raw material roll basic information comprises a raw material roll number, an alloy roll number, a raw material roll length, a raw material roll width and a raw material roll thickness, the raw material roll pinhole information comprises a raw material roll number, a pinhole size, a pinhole length direction position and a pinhole width direction position, and the order information comprises a required quantity, a required alloy, a required thickness, a required width, a required length, a tab area width, a tab area pinhole density requirement, a carbon-coated area width and a carbon-coated area pinhole density requirement. Optionally, based on the raw material coiled material area and the order area, respectively arranging the raw material coiled material and the order in an area descending order, and obtaining a priority processing queue comprises the steps of preprocessing the die cutting design data of the calendaring roll; the method comprises the steps of calculating a corresponding raw material coiled material area based on the raw material coiled material length and the raw material coiled material width, calculating a corresponding order area based on the required width and the required length of each order, and arranging all raw material coiled materials in a descending order based on the raw material coiled material area, and arranging all orders in a descending order based on the order area to obtain the priority processing queue. Optionally, obtaining a die cut design from the prio