CN116974255A - Production scheduling method and system suitable for different product types and production volumes - Google Patents
Production scheduling method and system suitable for different product types and production volumes Download PDFInfo
- Publication number
- CN116974255A CN116974255A CN202311089507.4A CN202311089507A CN116974255A CN 116974255 A CN116974255 A CN 116974255A CN 202311089507 A CN202311089507 A CN 202311089507A CN 116974255 A CN116974255 A CN 116974255A
- Authority
- CN
- China
- Prior art keywords
- production
- work
- production line
- line
- orders
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000009826 distribution Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 35
- 230000008901 benefit Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41865—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by job scheduling, process planning, material flow
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- General Factory Administration (AREA)
- Multi-Process Working Machines And Systems (AREA)
Abstract
The invention mainly relates to the technical field of product production scheduling. In order to solve the problems that the existing production line cannot be suitable for production orders with different P-Q relations, the traditional production line is adopted to need frequent line replacement, or the CELL line is adopted to have slow production beat and low production efficiency. The invention relates to a production scheduling method and a system suitable for different product types and production volumes, which change the types and sequences of execution tasks of all working stations in a production line according to the production task requirements on the premise of not changing the physical layout of the production line, change the serial-parallel logic of all the working stations, and convey materials to all the working stations according to the serial-parallel logic of all the working stations, so that one production line can be suitable for orders of different P-Q types to improve the production and manufacturing efficiency.
Description
Technical Field
The invention mainly relates to the technical field of product production scheduling, in particular to a production scheduling method and system suitable for different product types and production volumes.
Background
With the refinement of user demands, product production has increasingly developed in small batches of various varieties, but for low-cost running commodities, traditional large-batch orders are still maintained. The coexistence of large-batch and small-batch orders is particularly prominent in the production of electronic appliances, namely, the batch production of multiple varieties. In multi-variety variable mass production, the high P-Q order set and the low P-Q order set coexist, and the relation between varieties and batches presents a longer continuous curve. The evolution process is shown in fig. 1.
For low P-Q orders, the traditional flow-line production (flow-shop) comprises dozens of work stations with definite division, each work station completes a procedure, and the work stations are connected in series to fully exert the advantage of mass production, shorten the production beat to the greatest extent, and can be used for offline packaging of television products every 12-18 seconds.
For a high P-Q order, the method is suitable for a job-shop production mode because of multiple varieties (large P) and small batch (small Q), namely, all assembly procedures are completed in one workstation, and the method is not completed by multiple workstations in a serial pipeline. Therefore, a plurality of work stations can simultaneously produce products of different types, and time waste caused by frequent line replacement of a production line is avoided. The disadvantage is that the production process of CELL line is completely inferior to that of pipeline production, for example, about 10 minutes is required for one CELL to complete one TV, and 1 minute is also required for 10 CELL to be put down one.
In the face of the two production layouts, the scheduling methods are constrained by the layout of the line body, the range of the P-Q curves which can be adapted to the two production layouts is limited to two extremes, and the order set in the middle of the curves is difficult to exert advantages, and the defects of the two layouts are exposed at the same time: waste of frequent line replacement of the pipeline and inefficiency of the CELL line production tact.
Disclosure of Invention
The invention aims to solve the technical problems
The production scheduling method and system suitable for different product types and production volumes are provided, and the problems that the existing production line cannot be suitable for production orders with different P-Q relations, the traditional production line is required to be replaced frequently, or the CELL line is adopted to produce the slow production beat and the production efficiency is low are solved.
Technical method for solving the technical problems
Production scheduling methods for different product types and throughput, including,
grouping production orders, calculating the P-Q relation between the product types and the product numbers of each group of orders, and generating production work orders of each group of orders according to the P-Q relation;
splitting a production work order, and determining production targets of all production lines;
adjusting the type and the sequence of each workstation of the production line for executing the production task according to the production target of the production line and the type of the workstation in the production line;
and distributing materials to each work station according to the type and the sequence of the production task executed by each work station.
Further, the production work orders are split according to the delivery time of each group of orders, the current task load and the expected idle time of the production lines, and the production targets of each production line are determined.
Further, a code reading label is arranged on the product, and the code reading label of the product is read to obtain the production task progress of the production line.
Further, the operation instruction is pushed to the work stations according to the type and the sequence of the work stations of the production line for executing the production tasks.
Further, the material surplus condition of each workstation and the surplus space of the workstation are detected in real time to supplement the materials.
Based on the production scheduling method suitable for different product types and production volumes, the invention also provides a production scheduling system suitable for different product types and production volumes, which comprises a modularized production line, a P-Q collecting module, a work order splitting module, a work station scheduling module and a material distribution module;
the modularized production line comprises a plurality of work stations, a main transmission track and a slave transmission track, wherein the work stations are connected with the main transmission track through the slave transmission track;
the P-Q collecting module is used for calculating the P-Q relation between the product types and the product batches of the production order;
the work order splitting module is used for splitting the production order according to the P-Q relation of the order and determining the production target of the production line;
the work station scheduling module is used for adjusting the type and the sequence of each work station of the production line for executing the production task according to the production target of the production line and the type of the work station in the production line;
and the material distribution module is used for distributing materials to the work stations according to the types and the sequences of the production tasks executed by the work stations.
Further, the conveying track is annular, and each workstation is arranged around the annular conveying track.
Further, a star topology structure is formed between the main transmission track and each workstation, the star topology structure takes the main transmission track as a center, and transmission tracks are arranged between the workstations.
Further, the production line comprises a data acquisition module, wherein the data acquisition module is used for reading the code reading label of the product to acquire the production task progress of the production line.
Further, the system also comprises an operation guidance module, wherein the operation guidance module is used for pushing operation guidance instructions to the work stations according to the type and the sequence of the production tasks executed by each work station of the production line.
The beneficial effects of the invention are that
The production scheduling method suitable for different product types and production volumes can dynamically adapt to the whole P-Q change curve by calculating the P-Q relation of the production orders and adjusting the procedure types and the sequence of the execution of the production tasks by each workstation in production, is not only suitable for low P-Q orders and high P-Q orders, but also suitable for the production orders with the P-Q relation in the middle section of the P-Q curve, and can effectively avoid the problem of low production efficiency caused by frequent pipeline transformation or slow production beats when the production orders with the P-Q relation in the middle section of the P-Q curve are produced. Production orders of various P-Q relationships are produced on the same production line, and the production cost for building multiple production lines can be reduced.
Drawings
FIG. 1 shows the evolution trend of the order set P-Q from mass production to multi-variety mass production.
FIG. 2 is a flow chart of a method of scheduling production for different product types and throughput according to the present invention.
Fig. 3 is a schematic view of a modular production line according to the present invention.
Fig. 4 is a schematic view of a circular modular production line according to embodiment 1 of the present invention.
Fig. 5 is a schematic view of a linear modular production line according to embodiment 2 of the present invention.
Detailed Description
As shown in fig. 2, the production scheduling method applicable to different product types and production volumes according to the present invention includes the following steps:
a main transmission rail is arranged on a production line, and each workstation on the production line is connected with the main transmission rail through a slave transmission rail; the work stations and the main transmission track in the production line are arranged into a parallel bus type structure as shown in fig. 3, and the work stations can work in parallel.
Grouping the production orders, and calculating the P-Q relation between the product types and the product numbers of each group of orders by a P-Q collecting module, and generating production work orders of each group of orders; wherein, when grouping production orders, the formal orders, predicted orders and insert data in a period of time can be grouped according to the production capacity, and the amount of a group of orders is set in the workload that can be completed in one month or one week of one factory.
The work order splitting module splits the production work order according to the delivery deadline of each group of orders, the current task load of the production line, the expected idle time and the like, and specifically determines the production targets of all the production lines according to the day by the work tasks in the production work order.
The workstation scheduling module adjusts the topological structure of each workstation of the production line according to the production target of the production line and the workstation type of the production line, namely the type of the execution production task and the order of the execution production task;
the material distribution module distributes materials to each workstation of the modularized production line according to the work order splitting result and the type and sequence of the production tasks executed by the workstations.
The production scheduling method suitable for different product types and production volumes further comprises a data acquisition module, wherein the production progress of each production line is acquired through code scanning, RFID (radio frequency identification device) or SCADA (supervisory control and data acquisition) and the aging of orders is controlled, so that the delivery risk of the orders is avoided.
The operation instruction module is used for pushing operation instruction books (SOPs) according to the working procedures currently assigned to the work stations, so that the workers are prevented from assembling errors.
Example 1
As shown in fig. 4, the production line comprises 12 CELLs, each CELL being connected to a main transmission track, each CELL comprising a workstation therein.
When the production work order indicates that the production line needs to produce a multi-variety small-batch order set (high P-Q), for example, the production line comprises 20 models, a work station scheduling module firstly selects 12 product models with earlier exchange periods according to task requirements, adjusts 12 CELL to be in a parallel structure, each CELL produces products of different models, all the working procedures are completed in one CELL, 12 CELL simultaneously produces 12 products of the models, and then the products enter a transmission track to be transmitted to the downstream for product post-treatment.
When a large batch order set (low P-Q) with a single model is required to be produced, 12 CELL are adjusted to be in a serial structure, each CELL is responsible for part of working procedures, and products with the single model are assembled in the 12 CELL in sequence and then transmitted to the downstream for product post-treatment.
When the order set P-Q to be produced is in the middle section of the curve, for example, the order set contains 9 types of flat televisions, the first 9 parallel of 12 CELL can be adjusted, 9 flat television products with different types are assembled, the 10 th CELL is responsible for uniformly checking the assembly integrity of all types of televisions, and the 11 th and 12 th CELL are responsible for covering the rear cover and screwing to form a series-parallel structure.
Under different structures, the demand for delivery of production materials may also vary, such as delivery of materials in a conventional pipeline, where each workstation only needs to deliver one to two materials at a time, while CELL needs to deliver all first-order materials in BOM. In the invention, working procedures required to be completed by the working stations under the series-parallel structure are dynamically distributed, the requirements for materials are correspondingly in dynamic change, the production field is limited, the quantity of materials with different sizes which can be stored at the working stations is greatly different, the quantity proportion is different from the proportion in the BOM, and after the materials are configured by the material distribution module, the materials are distributed to each working station in batches at different frequencies, so that stable production can be ensured, and no stop line for waiting for the materials is caused.
And then, through an operation guidance module, real-time matched product assembly guidance is provided for operators of the workstation, bar code labels or tray labels of each work-in-process WIP are read, and after the system identifies the model, corresponding electronic operation guidance books are automatically issued to the current workstation and displayed on a screen of the workstation, so that the assembly requirements of products of different models are prevented from being wrongly recorded due to too many production of the operators due to model switching.
Preferably, the main transmission track is designed to be annular, mainly considering the situation that the work in the CELL is full, but the WIP is still continuously conveyed to be on line. The WIP may now circulate on the circular track until there is a CELL free. But for the factory of the mixed production mode of skillfully mastering, the factory has sufficient material distribution experience, establishes a CELL and WIP matching mechanism with high accuracy and strong fault tolerance, ensures that each online WIP is contained in an idle CELL, can establish a modularized production line in a straight line form, and has smaller occupied area and lower hardware complexity of a line body. And a communication track among CELL can be added outside the main transmission track, so that the relation of CELL can be more flexible.
Example 2
As shown in FIG. 5, the production line of embodiment 1 is assembled with each 2 CELL, and two CELL in each group can be made into two types of products at the same time, or one type of products can be made by division of work and cooperation, for example, WIP flows from C1 to C2 directly, which saves more time than WIP returns from C1 to the main track before entering C2.
Claims (10)
1. A production scheduling method suitable for different product types and production volumes, which is characterized by comprising,
grouping production orders, calculating the P-Q relation between the product types and the product numbers of each group of orders, and generating production work orders of each group of orders according to the P-Q relation;
splitting a production work order, and determining production targets of all production lines;
adjusting the type and the sequence of each workstation of the production line for executing the production task according to the production target of the production line and the type of the workstation in the production line;
and distributing materials to each work station according to the type and the sequence of the production task executed by each work station.
2. The method of claim 1, wherein the production targets of the production lines are determined by splitting the production work orders based on the lead times of the respective sets of orders, the current task load and the expected idle time of the production lines.
3. The production scheduling method suitable for different product types and production volumes according to claim 1, wherein a code reading tag is arranged on the product, and the code reading tag read on the product obtains the production task progress of the production line.
4. The method of claim 1, wherein the instructions are pushed to the stations according to the type and order in which each station of the production line performs the production tasks.
5. The production scheduling method for different product types and production volumes according to any one of claims 1 to 4, wherein the material remaining condition and the work station remaining space of each work station are detected in real time, and the material is replenished according to the material remaining condition and the work station remaining space of each work station.
6. A production scheduling system suitable for different product types and production volumes, and a production scheduling method suitable for different product types and production volumes according to any one of claims 1-5, wherein the production scheduling system comprises a modularized production line, a P-Q collection module, a work order splitting module, a work station scheduling module and a material distribution module;
the modularized production line comprises a plurality of work stations, a main transmission track and a slave transmission track, wherein the work stations are connected with the main transmission track through the slave transmission track;
the P-Q collecting module is used for calculating the P-Q relation between the product types and the product batches of the production order;
the work order splitting module is used for splitting the production order according to the P-Q relation of the order and determining the production target of the production line;
the work station scheduling module is used for adjusting the type and the sequence of each work station of the production line for executing the production task according to the production target of the production line and the type of the work station in the production line;
and the material distribution module is used for distributing materials to the work stations according to the types and the sequences of the production tasks executed by the work stations.
7. The production scheduling system of claim 6, wherein the main transfer track is endless.
8. The production scheduling system for different product types and throughput according to claim 6, wherein a star topology is formed between the main transmission track and each workstation, the star topology being centered on the main transmission track, and the transmission track being provided between each workstation.
9. The production scheduling system for different product types and throughput of claim 6, further comprising a data acquisition module for reading the code reading tag of the product to obtain the production task progress of the production line.
10. The production scheduling system of any one of claims 6-9, further comprising an operation instruction module for pushing operation instructions to the workstations based on the type and order in which each workstation of the production line performs production tasks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311089507.4A CN116974255A (en) | 2023-08-28 | 2023-08-28 | Production scheduling method and system suitable for different product types and production volumes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311089507.4A CN116974255A (en) | 2023-08-28 | 2023-08-28 | Production scheduling method and system suitable for different product types and production volumes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116974255A true CN116974255A (en) | 2023-10-31 |
Family
ID=88476784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311089507.4A Pending CN116974255A (en) | 2023-08-28 | 2023-08-28 | Production scheduling method and system suitable for different product types and production volumes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116974255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117234167A (en) * | 2023-11-10 | 2023-12-15 | 欣润新材料科技(江苏)有限公司 | Intelligent monitoring system for door curtain production line for electric welding place based on data analysis |
-
2023
- 2023-08-28 CN CN202311089507.4A patent/CN116974255A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117234167A (en) * | 2023-11-10 | 2023-12-15 | 欣润新材料科技(江苏)有限公司 | Intelligent monitoring system for door curtain production line for electric welding place based on data analysis |
| CN117234167B (en) * | 2023-11-10 | 2024-02-02 | 欣润新材料科技(江苏)有限公司 | Intelligent monitoring system for door curtain production line for electric welding place based on data analysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116974255A (en) | Production scheduling method and system suitable for different product types and production volumes | |
| CN204280470U (en) | A kind of tiered warehouse facility dispatching system | |
| CN111126748A (en) | Dynamic production plan scheduling method for discrete manufacturing industry | |
| CN104463521B (en) | Material allocation method | |
| CN110084405B (en) | Throughput flexible intelligent assembly logistics path planning method | |
| CN111353690B (en) | Block chain enabled production scheduling edge calculation method | |
| CN103824136A (en) | MES (Manufacturing Execution System) dynamic workshop scheduling and manufacturing execution system | |
| CN109460954B (en) | Supplier straight supply line side material distribution method based on JIT-VMI | |
| CN113433915B (en) | Automatic scheduling algorithm for workshop sheet metal machining | |
| CN113902301A (en) | Design method and system for production line of mobile phone assembly workshop | |
| CN108445853B (en) | Productivity sharing workshop based on cloud data | |
| CN107168253A (en) | Computer integrated manufacturing system and its manufacture method | |
| CN107577211B (en) | Internet of things technology-based pulling control system and method for material in process | |
| CN114693008A (en) | Intelligent production management system | |
| CN107402575A (en) | A kind of autonomous operation clusters of machines walking navigation control method | |
| CN114742540A (en) | Intelligent manufacturing management system | |
| Ke et al. | Mechanical System Design and Simulation Research of a Demonstration Assembly Line | |
| CN114443299B (en) | Flexible automatic lamination system based on 5G communication and edge calculation | |
| Yin et al. | Research and implementation of customization MES with improved scheduling based on RFID | |
| CN117970897B (en) | Energy-saving control method, device and system of automation equipment and storage medium | |
| Maimon et al. | Dynamic routing in reentrant flexible manufacturing systems | |
| CN116845015B (en) | Automatic dispatching system and automatic dispatching method for commissioning products | |
| CN109445397A (en) | Intelligent numerical control design of workshop verifies system | |
| CN115826545B (en) | Multi-variety small-batch wire-mixing machining flexible manufacturing scheduling and executing method and system | |
| CN214350399U (en) | Welding workstation output statistical system based on Internet of things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |