CN117252358B - Mold management system and method - Google Patents

Mold management system and method Download PDF

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CN117252358B
CN117252358B CN202311154698.8A CN202311154698A CN117252358B CN 117252358 B CN117252358 B CN 117252358B CN 202311154698 A CN202311154698 A CN 202311154698A CN 117252358 B CN117252358 B CN 117252358B
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CN117252358A (en
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左慧平
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Yunzhihui Wuhan Technology Service Co ltd
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Abstract

The invention relates to the technical field of mold management, and discloses a mold management system and a method, wherein the system comprises a material management module, a production arrangement module and a mold maintenance module; the material management module extracts the material types required by production according to the input production task plan; the production allocation module is used for obtaining an allocation plan to produce products according to the production task plan and the material information corresponding to the material type when the service life of the target die is lower than a set value; and the die maintenance module is used for acquiring corresponding die maintenance items according to the die types corresponding to the target die when the die life of the target die reaches a set value, and performing die maintenance on the target die corresponding to the set value. The invention carries out electronic management of the whole life cycle of the production maintenance of the mould through the material production arrangement module and the mould maintenance module, effectively tracks the on-site arrangement and maintenance of the mould, avoids the condition of disordered mould management and improves the working efficiency.

Description

Mold management system and method
Technical Field
The invention relates to the technical field of mold management, in particular to a mold management system and method.
Background
The mould is a tool for manufacturing molded articles, and is used for various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industrial production. With the development of various new product designs and manufacturing, more products are promoted to be new, and the speed increase of the product types enables the number of molds required by factories to be steadily increased.
However, due to the increase of the mold, the management level of the mold of many small and medium enterprises still needs to be improved, for example, even in a warehouse, because the shapes of the mold jigs are very similar, a user cannot immediately judge whether to find the corresponding mold jigs, which is time-consuming and labor-consuming; in addition, the on-site arrangement of the die is still in a paper process or in speech communication, so that the die is easy to arrange and not in place and cannot keep pace with the production beats, thereby causing disorder of die management and reducing the production efficiency.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a die management system and a die management method, which aim to solve the technical problems that the existing die management arrangement still exists in a paper process or is communicated in speech, so that the die management is not in place and cannot keep pace with the production beats, and the production efficiency is reduced.
To achieve the above object, the present invention provides a mold management system comprising: the device comprises a material management module, a production arrangement module and a die maintenance module;
The material management module is used for extracting material types required by the production process according to the input production task plan and sending material information corresponding to the material types to the production arrangement module;
The production arrangement module is used for carrying out production arrangement according to the production task plan and the material information when the service life of the target mould is lower than a set value, and obtaining a corresponding target mould according to the obtained arrangement plan to carry out product production;
And the die maintenance module is used for acquiring corresponding die maintenance items according to the die types corresponding to the target die when the die life of the target die reaches a set value, and performing die maintenance on the target die corresponding to the set value according to the die maintenance items.
Optionally, the die maintenance module comprises a die early warning unit and a die maintenance unit;
The die early warning unit is used for determining the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die;
The die early warning unit is further used for judging whether the die life of the target die reaches a set value, and sending target early warning information to the die maintenance unit when the die life of the target die reaches the set value;
The die maintenance unit is used for acquiring corresponding die maintenance items according to the target early warning information and the die types corresponding to the target dies, and performing die maintenance on the target dies corresponding to the set values according to the die maintenance items.
Optionally, the die early warning unit is further configured to obtain die information of each product die in the die warehouse, where the die information includes an accumulated die number, an accumulated stroke number and a die category;
the die early warning unit is further used for determining the service lives of the product dies corresponding to the product dies according to the die types, the accumulated die numbers and the accumulated stroke numbers;
The die early warning unit is further used for carrying out polling detection on the product die according to a preset time period, and judging whether the service life of the product die reaches a corresponding preset threshold value or not according to a polling result;
And the die early warning unit is also used for carrying out maintenance early warning on the product die corresponding to the preset threshold value when the service life of the product die reaches the corresponding preset threshold value.
Optionally, the die maintenance module further comprises a maintenance management unit;
the maintenance management unit is used for acquiring current mould parameters of the target mould when the production task plan of the target mould is finished, and acquiring abrasion parameters of the target mould according to the current mould parameters;
The die early warning unit is further used for judging whether the abrasion parameter reaches a second preset threshold value, and sending maintenance early warning information to the maintenance management unit when the abrasion parameter reaches the second preset threshold value;
The maintenance management unit is further used for acquiring corresponding mold maintenance items according to the maintenance early warning information and the mold types corresponding to the target mold, and maintaining the target mold according to the abrasion parameters and the mold maintenance items.
Optionally, the calculation formula of the accumulated modulus is: accumulated modulo = actual yield/(Pin number x number of bands); the calculation formula of the accumulated stroke frequency is as follows: cumulative stroke number = actual yield/number of mold cavities.
Optionally, the production arrangement module is further configured to obtain a material number and a mold number corresponding to the target mold according to the material mold correspondence and the material information;
the production arrangement module is further used for determining arrangement quantity and feeding grade according to the machine number, the material number and the production task plan corresponding to the target die when the die life of the target die is lower than a set value;
The production arrangement module is further used for carrying out production arrangement according to the arrangement quantity, the feeding grade and the die number, and carrying out product production based on the target die according to the obtained arrangement plan.
Optionally, the material management module is further configured to extract a material type required by the production process according to the input production task plan;
The material management module is also used for determining a part single weight, a raw material consumption and a product use period according to the material type, generating a material two-dimensional code corresponding to the production task plan according to the part single weight, the raw material consumption and the product use period, and sending the material two-dimensional code to the production allocation module;
The production arrangement module is further used for obtaining a material number and a die number corresponding to the target die according to the corresponding relation of the material dies and the material two-dimensional code.
In addition, in order to achieve the above purpose, the present invention also proposes a mold management method, which is applied to a mold management system, the system comprising a material management module, a production arrangement module and a mold maintenance module; the method comprises the following steps:
the material management module extracts material types required by the production process according to the input production task plan, and sends material information corresponding to the material types to the production arrangement module;
When the service life of the target die is lower than a set value, the production arrangement module carries out production arrangement according to the production task plan and the material information, and obtains a corresponding target die according to the obtained arrangement plan to carry out product production;
and when the service life of the target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to the die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item.
Optionally, the die maintenance module comprises a die early warning unit and a die maintenance unit; when the service life of the target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to the die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item, and the die maintenance module comprises:
The die early warning unit determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die;
the die early warning unit judges whether the die life of the target die reaches a set value, and when the die life of the target die reaches the set value, the die early warning unit sends target early warning information to the die maintenance unit;
And the die maintenance unit acquires corresponding die maintenance items according to the target early warning information and the die types corresponding to the target dies, and performs die maintenance on the target dies corresponding to the set values according to the die maintenance items.
Optionally, when the service life of the target mold reaches a set value, the mold maintenance module obtains a corresponding mold maintenance item according to a mold type corresponding to the target mold, and performs mold maintenance on the target mold corresponding to the set value according to the mold maintenance item, and then the mold maintenance module further includes:
the die early warning unit acquires die information of each product die in the die warehouse, wherein the die information comprises accumulated die times, accumulated stroke times and die types;
The die early warning unit determines the service lives of the product dies corresponding to the product dies according to the die types, the accumulated die numbers and the accumulated stroke numbers;
the die early warning unit carries out polling detection on the product die according to a preset time period, and judges whether the service life of the product die reaches a corresponding preset threshold value according to a polling result;
and when the service life of the product mould reaches a corresponding preset threshold value, the mould early warning unit performs maintenance early warning on the product mould corresponding to the preset threshold value.
The invention provides a die management system, which comprises: the device comprises a material management module, a production arrangement module and a die maintenance module; the material management module is used for extracting material types required by the production process according to the input production task plan and sending material information corresponding to the material types to the production arrangement module; the production arrangement module is used for carrying out production arrangement according to the production task plan and the material information when the service life of the target mould is lower than a set value, and obtaining a corresponding target mould according to the obtained arrangement plan to carry out product production; and the die maintenance module is used for acquiring corresponding die maintenance items according to the die types corresponding to the target die when the die life of the target die reaches a set value, and performing die maintenance on the target die corresponding to the set value according to the die maintenance items. The invention carries out electronic management of the whole life cycle of the production maintenance of the die through the material management module, the production arrangement module and the die maintenance module, effectively tracks the on-site arrangement and maintenance of the die, avoids the condition of disordered die management and improves the operation efficiency.
Drawings
FIG. 1 is a block diagram of a first embodiment of a mold management system according to the present invention;
FIG. 2 is a block diagram of a second embodiment of a mold management system according to the present invention;
FIG. 3 is a schematic diagram of the overall basic structure of a system in a second embodiment of the mold management system of the present invention;
FIG. 4 is a flowchart of a first embodiment of a mold management method according to the present invention;
fig. 5 is a flowchart of a second embodiment of the mold management method according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
An embodiment of the present invention provides a mold management system, referring to fig. 1, fig. 1 is a block diagram of a first embodiment of the mold management system according to the present invention.
It should be noted that, because the speed increase of the product types steadily increases the number of molds required by the factory, many small and medium enterprises still store the mold management in the paper process or communicate in speech, which causes difficulty in mold management and large workload of periodic inventory. Such as lost molds, damage, lost molds, and lost property. For example, the die exceeds the number of punches/die number, and the user cannot be effectively reminded to perform maintenance. Thereby causing disorder of mold management and reducing production efficiency. Based on this, the present embodiment provides a mold management system, which effectively tracks the field arrangement and maintenance of the mold, and avoids the condition of disordered mold management, so as to improve the working efficiency.
In this embodiment, the mold management system includes: a material management module 10, a production arrangement module 20 and a die maintenance module 30;
the material management module 10 is configured to extract a material type required in a production process according to an input production task plan, and send material information corresponding to the material type to the production scheduling module 20.
It should be noted that the material management module is a module for maintaining material related information, such as material information including material number, material name, measurement unit, product service period (seconds), raw material number, standard working hours, standard work unit, and the like.
It is understood that the production mission plan is a mission plan for product production based on a mold. The material management module can be used for obtaining the production task plan in real time by docking the EPR system, and simultaneously, batch import or editing modification can be carried out on the production plan.
It should be understood that the material type is the type corresponding to the material required in the production mission plan. In general, the material management module includes information of various materials, and according to the material type, the material information required by the production task plan can be directly queried.
In a specific implementation, the material management module extracts the material type of the material required in the production process according to the input production task plan, and inquires specific material information, such as material number, material name, material unit, material quantity and the like, according to the material type, and sends the information to the production allocation module.
The production arrangement module 20 is configured to perform production arrangement according to the production task plan and the material information when the die life of the target die is lower than a set value, and obtain a corresponding target die according to the obtained arrangement plan to perform product production.
The production scheduling module is a module for maintaining and inquiring related information of mould production and configuration of production sequence, a target mould can be predetermined according to a production product planned by a production task plan, and then the production scheduling module determines a scheduling plan obtained by carrying out production scheduling according to information such as material numbers, machine numbers, mould numbers, tools, scheduling number (KPCS), raw material numbers and the like according to material information.
In a specific implementation, the production scheduling module can pre-determine a target die according to a production product planned by the production task plan, determine a scheduling plan obtained by production scheduling according to information such as a material number, a machine number, a die number, a work order, a scheduling number (KPCS), a raw material number and the like according to the material information when the die life of the target die is lower than a set value, and produce the product according to the scheduling plan and the corresponding target die.
Furthermore, the production allocation module can also send the allocation plan to the production newspaper work management module for newspaper work management, and the production newspaper work management module is mainly used for maintaining the actual daily production quantity of the machine, such as production date, class, material number, work order, standard work unit, allocation quantity, starting time and the like. For example, the man-hour for input is: end time-start time (e.g., if night shift is a night shift, it takes +1 day if the end time exceeds 24 points); target yield = input man-hour/standard man-hour; yield man-hour = actual yield x standard man-hour; yield achievement rate = actual yield/target yield; and carrying out product report management according to the standard.
The die maintenance module 30 is configured to obtain a corresponding die maintenance item according to a die type corresponding to a target die when the die life of the target die reaches a set value, and perform die maintenance on the target die corresponding to the set value according to the die maintenance item.
It is understood that the mold maintenance module is a functional module for managing and recording mold maintenance and service information. In order to ensure normal operation of the mold and to extend the service life thereof, regular maintenance and service work is generally required, the reliability and stability of the equipment are improved, the production downtime is reduced, and the service life of the mold is prolonged.
It should be understood that mold life is the period of time that a mold can maintain satisfactory working capacity and performance under normal use conditions. By accurately evaluating, using and managing the service life of the die, the service life of the die can be prolonged to the greatest extent, and the production efficiency and the product quality are improved. Factors affecting the life of the mold are: material quality, manufacturing process, conditions of use, frequency of use, etc.
It is understood that the set value is a threshold value set according to the material quality, manufacturing process, use condition, etc. of the different molds, which affects the life of the molds. The mold maintenance items are maintenance items set according to different mold types and damage degrees of the molds.
In the specific implementation, after the service life of the die exceeds a set value, the system can automatically alarm, rapidly inform a user through channels such as mail sending and short message sending, acquire corresponding die maintenance items according to the die type corresponding to the target die, and perform subsequent die maintenance on the target die corresponding to the set value.
Further, in the mold management system, machine management may further include: the machine tool is used for maintaining information related to the machine tool, such as machine tool number, machine tool name, machine tool state, screw diameter, machine tool model, machine tool tonnage, storage position and the like, so that the production arrangement module can conveniently carry out data arrangement. A warehouse management module may also be included: because the die is stored in the warehouse, information related to the warehouse, such as die number, die, material, plate number, unit price (RMB), service life (k die number) and the like, is maintained through the warehouse management module, and management of information of the die entering and exiting the warehouse, such as die number, die state, bin position, machine number, operators, operation time and the like, is included, so that informatization support of the die is realized, and the operation condition of the die is accurately and rapidly mastered.
The material management module extracts the material types of the materials required in the production process according to the input production task plan, and inquires specific material information, such as material numbers, material names, material units, material quantity and the like, according to the material types, and sends the specific material information to the production arrangement module. The production scheduling module can pre-determine a target die according to the production product planned by the production task plan, and when the die life of the target die is lower than a set value, determine the scheduling plan obtained by production scheduling according to the material information such as the material number, the machine number, the die number, the work order, the scheduling number (KPCS), the raw material number and the like, and perform product production according to the scheduling plan and the corresponding target die. After the service life of the die exceeds a set value, the system can automatically alarm, rapidly inform a user through a mail, a short message and other channels, acquire corresponding die maintenance items according to the die type corresponding to the target die, and perform subsequent die maintenance on the target die corresponding to the set value. Because the production maintenance of the die is subjected to electronic management of the whole life cycle through the material management module, the production arrangement module and the die maintenance module, the on-site arrangement and maintenance of the die are effectively tracked, the condition of disordered die management is avoided, and the operation efficiency is improved.
Referring to fig. 2, fig. 2 is a block diagram illustrating a second embodiment of a mold management system according to the present invention.
Based on the first embodiment described above, in the present embodiment, the mold maintenance module 30 includes a mold early warning unit 31 and a mold maintenance unit 32;
The die pre-warning unit 31 is configured to determine a die life of the target die according to a current die number, a current stroke number, and a current maintenance number of the target die.
The die pre-warning unit 31 is further configured to determine whether the die life of the target die reaches a set value, and send target pre-warning information to the die maintenance unit 32 when the die life of the target die reaches the set value.
It should be noted that the die early warning unit is a functional unit for monitoring and early warning the die state, and can timely find the die problem and take appropriate measures for early warning so as to avoid the die failure or production accident. For example, the early warning information can be automatically pushed when the die reaches the early warning service life, so as to remind a user that the die needs to be maintained.
It is understood that the current molding number refers to the number of times a product is manufactured using a target mold during the manufacturing process, and each time a batch of products is manufactured using the mold, it is referred to as a single molding number. With increased mold times, the mold may wear, deform or fail, resulting in reduced product quality. The current stroke frequency refers to the number of times that the die can complete a complete forming process in the process of stamping or injection molding operation in the use process of the target die, and can be understood as the number of times that the die performs an opening and closing action. The current number of maintenance is the number of target mold repairs and maintenance. And the die life of the target die can be measured and determined according to the current die number, the current punching number and the current maintenance number.
The die maintenance unit 32 is configured to obtain a corresponding die maintenance item according to the target early warning information and a die type corresponding to the target die, and perform die maintenance on the target die corresponding to the set value according to the die maintenance item.
The mold maintenance unit is specially responsible for the mold maintenance and the function management unit of the maintenance. Due to long-term use and frequent operation of the mold, abrasion, damage or other problems may occur, affecting product quality and production efficiency. In order to ensure the normal operation of the mold and prolong the service life of the mold, the mold maintenance unit is responsible for periodically checking, cleaning, repairing and maintaining the management of the mold, and the mold maintenance unit follows corresponding maintenance procedures and standards so as to reduce the failure rate of the mold and improve the production efficiency. The mold maintenance items are maintenance items set according to different mold types and wear degrees.
For example, die edge-to-volume pre-warning: in the basic material of the die, when the current stroke frequency > early warning stroke frequency, generating an early warning message (judging that the early warning message in early warning/processing is not required to be repeatedly generated if the die is in a state of early warning), and the early warning content is as follows: the die number 1 is pre-reached to the service life of the knife edge, and the maintenance is required in time.
In specific implementation, the die early warning unit determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; and judging whether the service life of the target die reaches a set value, when the service life of the target die reaches the set value, acquiring a corresponding die maintenance item according to the target early warning information and the die type corresponding to the target die by the die maintenance unit, and performing die maintenance on the target die corresponding to the set value according to the die maintenance item. So as to reduce the failure rate of the die and improve the production efficiency.
Further, the die pre-warning unit 31 in this embodiment is further configured to obtain die information of each product die in the die warehouse, where the die information includes an accumulated die number, an accumulated stroke number, and a die type;
The die early warning unit 31 is further configured to determine a product die life corresponding to each product die according to the die category, the accumulated die number and the accumulated stroke number;
the die early warning unit 31 is further configured to perform polling detection on the product die according to a preset time period, and determine whether the service life of the product die reaches a corresponding preset threshold according to a polling result;
The die early warning unit 31 is further configured to perform maintenance early warning on the product die corresponding to the preset threshold value when the service life of the product die reaches the corresponding preset threshold value.
The cumulative molding number refers to the historical number of times the target mold manufactured the product during the production process. The accumulated number of strokes refers to the total number of times the die has completed a complete molding process during use of the target die. The die life of each product die in the warehouse can be measured and determined according to the current die number, the current punching number and the die type, so that early warning maintenance is carried out on the die in real time.
It can be understood that the preset time period is a preset pre-warning time period, and considering that the use frequencies of most dies are different, the pre-warning time period can be set according to the use frequency of the dies, for example, a die which is frequently used can be set to a shorter preset time period, and a die which is not used for a long time can be set to a longer preset time period. The preset threshold is a threshold set according to the service lives of the molds of different products, and the molds reaching the threshold can be pre-warned based on the preset threshold.
For example, the maintenance of the mold may include maintenance type, maintenance property, number of maintenance rolls, operator, maintenance item, confirmation of abnormal photograph of product, photograph after maintenance of product, confirmation of quality of product, etc.
In a specific implementation, the die early warning unit can determine the service lives of the corresponding product dies of each product die according to the accumulated die number, accumulated stroke number and die type of each product die in the die warehouse; carrying out polling detection on the product mold according to a preset time period, and judging whether the service life of the product mold reaches a corresponding preset threshold value according to a polling result; and when the service life of the product mold reaches a corresponding preset threshold value, carrying out maintenance early warning on the product mold corresponding to the preset threshold value. When the die needs to be maintained, early warning is automatically judged, and the operation efficiency of die maintenance is improved.
Further, the calculation formula of the accumulated modulus is: accumulated modulo = actual yield/(Pin number x number of bands); the calculation formula of the accumulated stroke frequency is as follows: cumulative stroke number = actual yield/number of mold cavities.
It should be noted that the actual yield represents the amount of the product actually completed in the production process, and can be obtained by statistics. Pin number refers to the number of pins (Pin) on a product or component, which determines the complexity and functionality of the product, and the more pins the more the number of accumulated modes. The number of strips is the number of strips (strips) used in the production process, which is a Strip of material carrying parts, and is commonly used in stamping processes for efficient continuous feeding of raw materials. By dividing the actual yield by the number of pins and strips required for each press, the cumulative number of dies can be obtained to evaluate the die life and use. The use efficiency and the economy of the die can be quickly and accurately known, so that the smooth production is ensured.
It is understood that the number of cavities refers to the number of holes or recesses in the mold that can be simultaneously subjected to the impact operation, and the number of products that can be simultaneously completed in a single stamping can be determined. The cumulative number of strokes obtained can evaluate the use and life of the mold by dividing the actual yield by the number of products (i.e., the number of mold cavities) that can be simultaneously completed per punch. And the mold exceeding times/mold exceeding times can prompt a user to maintain in time.
Further, as shown in fig. 2, the mold maintenance module 30 in this embodiment further includes a maintenance management unit 33;
The maintenance management unit 33 is configured to obtain a current mold parameter of the target mold when the production task plan of the target mold is finished, and obtain a wear parameter of the target mold according to the current mold parameter;
The die early-warning unit 31 is further configured to determine whether the wear parameter reaches a second preset threshold, and send maintenance early-warning information to the maintenance management unit 33 when the wear parameter reaches the second preset threshold;
The maintenance management unit 33 is further configured to obtain a corresponding mold maintenance item according to the maintenance early warning information and the mold type corresponding to the target mold, and maintain the target mold according to the wear parameter and the mold maintenance item.
The maintenance management unit is a functional module for maintaining the maintenance information of the mold, and performing maintenance management on the mold, such as maintenance type, maintenance level, number of maintenance rolls, operator, CAV (cavity number), abnormal description, maintenance property, maintenance content, replacement content, photographs after product maintenance, and the like.
It is understood that the current mold parameters are parameters measured at the end of the production mission plan for the target mold, including the appearance specification, weight, finish, etc. of the mold. The wear parameters are determined from a comparison of current mold parameters with historical mold parameters. The degree of damage to the target mold may be determined based on the wear parameters.
It should be understood that the second preset threshold is a threshold preset according to the damage degree of the target mold, and when the damage degree reaches the second preset threshold, the target mold needs to be maintained. The mould maintenance project is a maintenance project preset according to different moulds and damage degrees.
In a specific implementation, the maintenance management unit acquires current mold parameters of the target mold and determines wear parameters of the target mold when the production task plan of the target mold is finished; and judging whether the abrasion parameter reaches a second preset threshold value, and when the abrasion parameter reaches the second preset threshold value, acquiring a corresponding die maintenance item by the maintenance management unit according to the maintenance early warning information and the die type corresponding to the target die, and maintaining the target die according to the abrasion parameter and the die maintenance item. And maintenance management is performed in time, so that the effectiveness of die maintenance is improved.
Further, the production and distribution module 20 in this embodiment is further configured to obtain a material number and a mold number corresponding to the target mold according to the material mold correspondence and the material information;
The production arrangement module 20 is further configured to determine an arrangement number and a feeding level according to a machine number, the material number and the production task plan corresponding to the target mold when the mold life of the target mold is lower than a set value;
the production arrangement module 20 is further configured to perform production arrangement according to the arrangement number, the feeding level and the die number, and perform product production based on the target die according to the obtained arrangement plan.
The number of dispositions is the number of particular products or parts produced as determined in the production plan. The feed grade is the grade or grade of the raw material or component supply during production. By determining and ensuring the number of raw materials and parts to be arranged and the grade of supply required, a smooth execution of the production plan is supported.
It should be understood that the material mold correspondence is a correspondence for characterizing a material to a mold, such as a material number, a mold number, and the like.
In specific implementation, the production arrangement module obtains a material number and a mould number corresponding to a target mould according to the corresponding relation of the material moulds and the material information; when the service life of a target die is lower than a set value, determining the arrangement quantity and the feeding grade according to the machine number, the material number and the production task plan corresponding to the target die; to support smooth execution of the production plan. And performing production and allocation according to the allocation quantity, the feeding grade and the die number, and performing product production based on the target die according to the obtained allocation plan. By ensuring the number of rows and the grade of supply of raw materials and parts required, a smooth execution of the production plan is supported.
Further, the material management module 10 in this embodiment is further configured to extract a material type required by the production process according to the input production task plan;
The material management module 10 is further configured to determine a part singleweight, a raw material consumption and a product usage period according to the material type, generate a material two-dimensional code corresponding to the production task plan according to the part singleweight, the raw material consumption and the product usage period, and send the material two-dimensional code to the production allocation module 20;
The production arrangement module 20 is further configured to obtain a material number and a mold number corresponding to the target mold according to the material mold correspondence and the material two-dimensional code.
The part weight is the unit weight of a part or assembly, typically expressed in grams, kilograms, or other suitable weight units, used to represent the weight of the material used in the part's manufacturing process. The raw material amount is the amount of raw material required to produce a product or part in the manufacturing process. The product life cycle is the expected life or service time of the product under normal service conditions, and depends on factors such as product design, material quality, service environment and the like.
In specific implementation, the material management module extracts the type of materials required in the production process according to an input production task plan to determine the parts singleweight, the raw material consumption and the product use period of the required materials, and generates a material two-dimensional code corresponding to the production task plan according to the parts singleweight, the raw material consumption and the product use period; the production arrangement module can rapidly acquire the material numbers and the mold numbers corresponding to the target molds according to the corresponding relation of the material molds and the material two-dimensional codes so as to improve the efficiency of material management.
For ease of understanding, referring to fig. 3, fig. 3 is a schematic diagram of the overall infrastructure of the system in a second embodiment of the mold management system of the present invention. The management of the basic configuration data of the die system generally comprises machine information, die information, corresponding relation, maintenance item setting, production target efficiency setting, die part number and material number management. After the die data is maintained, the die data is related to the corresponding material number and the machine, and the maintenance is carried out through material number management and machine management. Then, production planning management, mold maintenance management and mold maintenance management can be performed. The mold bin of the mold requires mold registration when the mold is put in and out. In a specific implementation, the production plan management is connected with the EPR system, the production task plan is obtained in real time, and meanwhile, the production plan batch import or editing modification can be carried out for production management. The material number and machine data of the production plan are typically present in the underlying data, otherwise the synchronization is unsuccessful. Based on the material number of the mould and the production machine, a user performs operation according to a production plan, and after production is completed, a work reporting completion action is performed on a production work reporting page. The current material number and the machine station of the newspaper worker correspond to the current mould information, and the system can automatically calculate the current stroke frequency/mould frequency and service life of the mould according to the number of the newspaper worker. The calculation formula of the die: modulo = actual yield/(Pin number x number of tapes), punch = actual yield/number of cavities. At the moment, whether the service life of the die is alarmed or not is counted, when the service life of the die is lower than a set value, the system can continue to deliver a production plan, after the service life of the die exceeds the set value, the die system can automatically carry out die service life maintenance alarm, and the die system can quickly pass through users through channels such as mail sending and short message sending, so that subsequent die maintenance can be carried out. Setting mould maintenance items before mould maintenance is carried out, and dividing different maintenance items according to the mould types. And when maintaining, the corresponding maintenance items are quickly selected. The mould maintenance management needs to carry out flow approval, the current bill is rejected to an initial bill-establishing state by any stage of rejection, the system is automatically thrown to a next approval node after approval, and finally after the mould maintenance is confirmed, the system is automatically filed, the mould maintenance file can be checked after filing, and the information of maintenance photos, maintenance items, maintenance conditions, maintenance replacement modules and the like of the mould can be seen. The user finds that the die is abnormal and needs to be repaired, repair is carried out on the die repair page, after repair is carried out, maintenance personnel carry out maintenance repair on the repair sheet through the repair sheet page, maintenance is carried out after the repair sheet is completed, and after the die maintenance is completed, corresponding die maintenance work records are filled in, and maintenance approval confirmation is carried out. The mold management can set the bin space of the molds, each mold can carry out warehouse-in and warehouse-out management, and the handheld terminal is used for scanning the two-dimension codes of the molds to carry out warehouse-in and warehouse-out operation. The system records the ex-warehouse time, the warehouse-in time and the operators of each die. Through the effective electronic management of the die management, the information is convenient and effective to track, and a user can check and trace the die information in time.
The die early warning unit of the embodiment determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; and judging whether the service life of the target die reaches a set value, when the service life of the target die reaches the set value, acquiring a corresponding die maintenance item according to the target early warning information and the die type corresponding to the target die by the die maintenance unit, and performing die maintenance on the target die corresponding to the set value according to the die maintenance item. So as to reduce the failure rate of the die and improve the production efficiency. Further, the die early warning unit can determine the service lives of the corresponding product dies of the product dies according to the accumulated die numbers, accumulated stroke numbers and die types of the product dies in the die warehouse; carrying out polling detection on the product mold according to a preset time period, and judging whether the service life of the product mold reaches a corresponding preset threshold value according to a polling result; and when the service life of the product mold reaches a corresponding preset threshold value, carrying out maintenance early warning on the product mold corresponding to the preset threshold value. When the die needs to be maintained, early warning is automatically judged, and the operation efficiency of die maintenance is improved.
Referring to fig. 4, a mold management system of the present invention provides a mold management method, and fig. 4 is a schematic flow chart of a first embodiment of the mold management method of the present invention, where the system includes a material management module, a production arrangement module, and a mold maintenance module; the method comprises the following steps:
Step S10: and the material management module extracts the material types required by the production process according to the input production task plan and sends the material information corresponding to the material types to the production arrangement module.
It should be noted that the material management module is a module for maintaining material related information, such as material information including material number, material name, measurement unit, product service period (seconds), raw material number, standard working hours, standard work unit, and the like.
It is understood that the production mission plan is a mission plan for product production based on a mold. The material management module can be used for obtaining the production task plan in real time by docking the EPR system, and simultaneously, batch import or editing modification can be carried out on the production plan.
It should be understood that the material type is the type corresponding to the material required in the production mission plan. In general, the material management module includes information of various materials, and according to the material type, the material information required by the production task plan can be directly queried.
In a specific implementation, the material management module extracts the material type of the material required in the production process according to the input production task plan, and inquires specific material information, such as material number, material name, material unit, material quantity and the like, according to the material type, and sends the information to the production allocation module.
Step S20: and when the service life of the target die is lower than a set value, the production arrangement module carries out production arrangement according to the production task plan and the material information, and obtains a corresponding target die according to the obtained arrangement plan to carry out product production.
The production scheduling module is a module for maintaining and inquiring related information of mould production and configuration of production sequence, a target mould can be predetermined according to a production product planned by a production task plan, and then the production scheduling module determines a scheduling plan obtained by carrying out production scheduling according to information such as material numbers, machine numbers, mould numbers, tools, scheduling number (KPCS), raw material numbers and the like according to material information.
In a specific implementation, the production scheduling module can pre-determine a target die according to a production product planned by the production task plan, determine a scheduling plan obtained by production scheduling according to information such as a material number, a machine number, a die number, a work order, a scheduling number (KPCS), a raw material number and the like according to the material information when the die life of the target die is lower than a set value, and produce the product according to the scheduling plan and the corresponding target die.
Furthermore, the production allocation module can also send the allocation plan to the production newspaper work management module for newspaper work management, and the production newspaper work management module is mainly used for maintaining the actual daily production quantity of the machine, such as production date, class, material number, work order, standard work unit, allocation quantity, starting time and the like. For example, the man-hour for input is: end time-start time (e.g., if night shift is a night shift, it takes +1 day if the end time exceeds 24 points); target yield = input man-hour/standard man-hour; yield man-hour = actual yield x standard man-hour; yield achievement rate = actual yield/target yield; and carrying out product report management according to the standard.
Step S30: and when the service life of the target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to the die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item.
It is understood that the mold maintenance module is a functional module for managing and recording mold maintenance and service information. In order to ensure normal operation of the mold and to extend the service life thereof, regular maintenance and service work is generally required, the reliability and stability of the equipment are improved, the production downtime is reduced, and the service life of the mold is prolonged.
It should be understood that mold life is the period of time that a mold can maintain satisfactory working capacity and performance under normal use conditions. By accurately evaluating, using and managing the service life of the die, the service life of the die can be prolonged to the greatest extent, and the production efficiency and the product quality are improved. Factors affecting the life of the mold are: material quality, manufacturing process, conditions of use, frequency of use, etc.
It is understood that the set value is a threshold value set according to the material quality, manufacturing process, use condition, etc. of the different molds, which affects the life of the molds. The mold maintenance items are maintenance items set according to different mold types and damage degrees of the molds.
In the specific implementation, after the service life of the die exceeds a set value, the system can automatically alarm, rapidly inform a user through channels such as mail sending and short message sending, acquire corresponding die maintenance items according to the die type corresponding to the target die, and perform subsequent die maintenance on the target die corresponding to the set value.
Further, in the mold management system, machine management may further include: the machine tool is used for maintaining information related to the machine tool, such as machine tool number, machine tool name, machine tool state, screw diameter, machine tool model, machine tool tonnage, storage position and the like, so that the production arrangement module can conveniently carry out data arrangement. A warehouse management module may also be included: because the die is stored in the warehouse, information related to the warehouse, such as die number, die, material, plate number, unit price (RMB), service life (k die number) and the like, is maintained through the warehouse management module, and management of information of the die entering and exiting the warehouse, such as die number, die state, bin position, machine number, operators, operation time and the like, is included, so that informatization support of the die is realized, and the operation condition of the die is accurately and rapidly mastered.
The material management module extracts the material types of the materials required in the production process according to the input production task plan, and inquires specific material information, such as material numbers, material names, material units, material quantity and the like, according to the material types, and sends the specific material information to the production arrangement module. The production scheduling module can pre-determine a target die according to the production product planned by the production task plan, and when the die life of the target die is lower than a set value, determine the scheduling plan obtained by production scheduling according to the material information such as the material number, the machine number, the die number, the work order, the scheduling number (KPCS), the raw material number and the like, and perform product production according to the scheduling plan and the corresponding target die. After the service life of the die exceeds a set value, the system can automatically alarm, rapidly inform a user through a mail, a short message and other channels, acquire corresponding die maintenance items according to the die type corresponding to the target die, and perform subsequent die maintenance on the target die corresponding to the set value. Because the production maintenance of the die is subjected to electronic management of the whole life cycle through the material management module, the production arrangement module and the die maintenance module, the on-site arrangement and maintenance of the die are effectively tracked, the condition of disordered die management is avoided, and the operation efficiency is improved.
Referring to fig. 5, fig. 5 is a flowchart illustrating a second embodiment of the mold management method according to the present invention, and based on the embodiment shown in fig. 4, the second embodiment of the mold management method according to the present invention is provided.
In this embodiment, the step S30 includes:
Step S31: and the die early warning unit determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die.
It should be noted that the die early warning unit is a functional unit for monitoring and early warning the die state, and can timely find the die problem and take appropriate measures for early warning so as to avoid the die failure or production accident. For example, the early warning information can be automatically pushed when the die reaches the early warning service life, so as to remind a user that the die needs to be maintained.
It is understood that the current molding number refers to the number of times a product is manufactured using a target mold during the manufacturing process, and each time a batch of products is manufactured using the mold, it is referred to as a single molding number. With increased mold times, the mold may wear, deform or fail, resulting in reduced product quality. The current stroke frequency refers to the number of times that the die can complete a complete forming process in the process of stamping or injection molding operation in the use process of the target die, and can be understood as the number of times that the die performs an opening and closing action. The current number of maintenance is the number of target mold repairs and maintenance. And the die life of the target die can be measured and determined according to the current die number, the current punching number and the current maintenance number.
Step S32: and the die early warning unit judges whether the die life of the target die reaches a set value, and when the die life of the target die reaches the set value, the die early warning unit sends target early warning information to the die maintenance unit.
Step S33: and the die maintenance unit acquires corresponding die maintenance items according to the target early warning information and the die types corresponding to the target dies, and performs die maintenance on the target dies corresponding to the set values according to the die maintenance items.
The mold maintenance unit is specially responsible for the mold maintenance and the function management unit of the maintenance. Due to long-term use and frequent operation of the mold, abrasion, damage or other problems may occur, affecting product quality and production efficiency. In order to ensure the normal operation of the mold and prolong the service life of the mold, the mold maintenance unit is responsible for periodically checking, cleaning, repairing and maintaining the management of the mold, and the mold maintenance unit follows corresponding maintenance procedures and standards so as to reduce the failure rate of the mold and improve the production efficiency. The mold maintenance items are maintenance items set according to different mold types and wear degrees.
For example, die edge-to-volume pre-warning: in the basic material of the die, when the current stroke frequency > early warning stroke frequency, generating an early warning message (judging that the early warning message in early warning/processing is not required to be repeatedly generated if the die is in a state of early warning), and the early warning content is as follows: the die number 1 is pre-reached to the service life of the knife edge, and the maintenance is required in time.
In specific implementation, the die early warning unit determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; and judging whether the service life of the target die reaches a set value, when the service life of the target die reaches the set value, acquiring a corresponding die maintenance item according to the target early warning information and the die type corresponding to the target die by the die maintenance unit, and performing die maintenance on the target die corresponding to the set value according to the die maintenance item. So as to reduce the failure rate of the die and improve the production efficiency.
Further, after step S30, the method further includes: the die early warning unit acquires die information of each product die in the die warehouse, wherein the die information comprises accumulated die times, accumulated stroke times and die types; the die early warning unit determines the service lives of the product dies corresponding to the product dies according to the die types, the accumulated die numbers and the accumulated stroke numbers; the die early warning unit carries out polling detection on the product die according to a preset time period, and judges whether the service life of the product die reaches a corresponding preset threshold value according to a polling result; and when the service life of the product mould reaches a corresponding preset threshold value, the mould early warning unit performs maintenance early warning on the product mould corresponding to the preset threshold value.
The cumulative molding number refers to the historical number of times the target mold manufactured the product during the production process. The accumulated number of strokes refers to the total number of times the die has completed a complete molding process during use of the target die. The die life of each product die in the warehouse can be measured and determined according to the current die number, the current punching number and the die type, so that early warning maintenance is carried out on the die in real time.
It can be understood that the preset time period is a preset pre-warning time period, and considering that the use frequencies of most dies are different, the pre-warning time period can be set according to the use frequency of the dies, for example, a die which is frequently used can be set to a shorter preset time period, and a die which is not used for a long time can be set to a longer preset time period. The preset threshold is a threshold set according to the service lives of the molds of different products, and the molds reaching the threshold can be pre-warned based on the preset threshold.
For example, the maintenance of the mold may include maintenance type, maintenance property, number of maintenance rolls, operator, maintenance item, confirmation of abnormal photograph of product, photograph after maintenance of product, confirmation of quality of product, etc.
In a specific implementation, the die early warning unit can determine the service lives of the corresponding product dies of each product die according to the accumulated die number, accumulated stroke number and die type of each product die in the die warehouse; carrying out polling detection on the product mold according to a preset time period, and judging whether the service life of the product mold reaches a corresponding preset threshold value according to a polling result; and when the service life of the product mold reaches a corresponding preset threshold value, carrying out maintenance early warning on the product mold corresponding to the preset threshold value. When the die needs to be maintained, early warning is automatically judged, and the operation efficiency of die maintenance is improved.
The die early warning unit of the embodiment determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; and judging whether the service life of the target die reaches a set value, when the service life of the target die reaches the set value, acquiring a corresponding die maintenance item according to the target early warning information and the die type corresponding to the target die by the die maintenance unit, and performing die maintenance on the target die corresponding to the set value according to the die maintenance item. So as to reduce the failure rate of the die and improve the production efficiency. Further, the die early warning unit can determine the service lives of the corresponding product dies of the product dies according to the accumulated die numbers, accumulated stroke numbers and die types of the product dies in the die warehouse; carrying out polling detection on the product mold according to a preset time period, and judging whether the service life of the product mold reaches a corresponding preset threshold value according to a polling result; and when the service life of the product mold reaches a corresponding preset threshold value, carrying out maintenance early warning on the product mold corresponding to the preset threshold value. When the die needs to be maintained, early warning is automatically judged, and the operation efficiency of die maintenance is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read-only memory/random-access memory, magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (5)

1. A mold management system, the mold management system comprising: the device comprises a material management module, a production arrangement module and a die maintenance module;
The material management module is used for docking the EPR system to obtain a production task plan, extracting the material types required by the production process according to the production task plan, and sending material information corresponding to the material types to the production allocation module;
The production arrangement module is used for carrying out production arrangement according to the production task plan and the material information when the service life of the target mould is lower than a set value, and obtaining a corresponding target mould according to the obtained arrangement plan to carry out product production;
The die maintenance module is used for acquiring corresponding die maintenance items according to the die types corresponding to the target die when the die life of the target die reaches a set value, and performing die maintenance on the target die corresponding to the set value according to the die maintenance items;
The die maintenance module comprises a die early warning unit and a die maintenance unit; the die early warning unit is used for determining the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; the die early warning unit is further used for judging whether the die life of the target die reaches a set value, and sending target early warning information to the die maintenance unit when the die life of the target die reaches the set value; the die maintenance unit is used for acquiring corresponding die maintenance items according to the target early warning information and the die types corresponding to the target dies, and performing die maintenance on the target dies corresponding to the set values according to the die maintenance items;
The die early warning unit is further used for acquiring die information of each product die in the die warehouse, wherein the die information comprises accumulated die times, accumulated stroke times and die types; the die early warning unit is further used for determining the service lives of the product dies corresponding to the product dies according to the die types, the accumulated die numbers and the accumulated stroke numbers; the die early warning unit is further used for carrying out polling detection on the product die according to a preset time period, and judging whether the service life of the product die reaches a corresponding preset threshold value or not according to a polling result; the die early warning unit is further used for carrying out maintenance early warning on the product die corresponding to the preset threshold value when the service life of the product die reaches the corresponding preset threshold value;
The calculation formula of the accumulated modulus is as follows: accumulated modulo = actual yield/(Pin number x number of bands); the calculation formula of the accumulated stroke frequency is as follows: accumulated stroke number = actual yield/number of cavities;
The die management system further comprises a production report management module; the production report work management module is used for receiving the arrangement plan sent by the production arrangement module, maintaining the production quantity of the machine, and carrying out product report work management, and comprises the following steps: input man-hour=end time-start time, target yield=input man-hour/standard man-hour, yield man-hour=actual yield×standard man-hour, yield achievement rate=actual yield/target yield.
2. The mold management system of claim 1, wherein the mold maintenance module further comprises a maintenance management unit;
the maintenance management unit is used for acquiring current mould parameters of the target mould when the production task plan of the target mould is finished, and acquiring abrasion parameters of the target mould according to the current mould parameters;
The die early warning unit is further used for judging whether the abrasion parameter reaches a second preset threshold value, and sending maintenance early warning information to the maintenance management unit when the abrasion parameter reaches the second preset threshold value;
The maintenance management unit is further used for acquiring corresponding mold maintenance items according to the maintenance early warning information and the mold types corresponding to the target mold, and maintaining the target mold according to the abrasion parameters and the mold maintenance items.
3. The mold management system of claim 1, wherein the production arrangement module is further configured to obtain a material number and a mold number corresponding to a target mold according to a material mold correspondence and the material information;
the production arrangement module is further used for determining arrangement quantity and feeding grade according to the machine number, the material number and the production task plan corresponding to the target die when the die life of the target die is lower than a set value;
The production arrangement module is further used for carrying out production arrangement according to the arrangement quantity, the feeding grade and the die number, and carrying out product production based on the target die according to the obtained arrangement plan.
4. A mold management system according to claim 3, wherein the material management module is further configured to extract a material type required for a production process according to the inputted production mission plan;
The material management module is also used for determining a part single weight, a raw material consumption and a product use period according to the material type, generating a material two-dimensional code corresponding to the production task plan according to the part single weight, the raw material consumption and the product use period, and sending the material two-dimensional code to the production allocation module;
The production arrangement module is further used for obtaining a material number and a die number corresponding to the target die according to the corresponding relation of the material dies and the material two-dimensional code.
5. The die management method is characterized in that the die management method is applied to a die management system, and the system comprises a material management module, a production arrangement module and a die maintenance module; the method comprises the following steps:
The material management module is in butt joint with the EPR system to obtain a production task plan, extracts material types required by a production process according to the production task plan, and sends material information corresponding to the material types to the production allocation module;
When the service life of the target die is lower than a set value, the production arrangement module carries out production arrangement according to the production task plan and the material information, and obtains a corresponding target die according to the obtained arrangement plan to carry out product production;
When the service life of a target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to a die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item;
The die maintenance module comprises a die early warning unit and a die maintenance unit; when the service life of the target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to the die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item, and the die maintenance module comprises: the die early warning unit determines the die life of the target die according to the current die number, the current punching number and the current maintenance number of the target die; the die early warning unit judges whether the die life of the target die reaches a set value, and when the die life of the target die reaches the set value, the die early warning unit sends target early warning information to the die maintenance unit; the die maintenance unit obtains corresponding die maintenance items according to the target early warning information and the die types corresponding to the target dies, and performs die maintenance on the target dies corresponding to the set values according to the die maintenance items;
When the service life of the target die reaches a set value, the die maintenance module acquires a corresponding die maintenance item according to the die type corresponding to the target die, and performs die maintenance on the target die corresponding to the set value according to the die maintenance item, and then the die maintenance module further comprises: the die early warning unit acquires die information of each product die in the die warehouse, wherein the die information comprises accumulated die times, accumulated stroke times and die types; the die early warning unit determines the service lives of the product dies corresponding to the product dies according to the die types, the accumulated die numbers and the accumulated stroke numbers; the die early warning unit carries out polling detection on the product die according to a preset time period, and judges whether the service life of the product die reaches a corresponding preset threshold value according to a polling result; the die early warning unit performs maintenance early warning on the product die corresponding to the preset threshold value when the service life of the product die reaches the corresponding preset threshold value;
The calculation formula of the accumulated modulus is as follows: accumulated modulo = actual yield/(Pin number x number of bands); the calculation formula of the accumulated stroke frequency is as follows: accumulated stroke number = actual yield/number of cavities;
the die management system further comprises a production report management module; the production report work management module receives the arrangement plan sent by the production arrangement module, maintains the production quantity of the machine, carries out product report work management, and comprises the following steps: input man-hour=end time-start time, target yield=input man-hour/standard man-hour, yield man-hour=actual yield×standard man-hour, yield achievement rate=actual yield/target yield.
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