CN113011050B - Online estimation method and related device for spinning frame yield - Google Patents

Online estimation method and related device for spinning frame yield Download PDF

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CN113011050B
CN113011050B CN202110442874.2A CN202110442874A CN113011050B CN 113011050 B CN113011050 B CN 113011050B CN 202110442874 A CN202110442874 A CN 202110442874A CN 113011050 B CN113011050 B CN 113011050B
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章军辉
郭晓满
付宗杰
王静贤
陈大鹏
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Wuxi Internet Of Things Innovation Center Co ltd
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Abstract

The application discloses an online estimation method and a related device for the yield of a spinning frame, which comprises the steps of obtaining technological parameters of the spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the technological parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted; calculating to obtain theoretical estimated yield in the doffing process according to the technological parameters; calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the process parameters; estimating the yield and the yield reduction amount according to a theory, and calculating to obtain the real-time yield in the doffing process; and calculating the total yield of a doff according to the yield reduction amount, the number of ingots in the process parameters and the design weight of a single yarn fruit. The online estimation method can accurately estimate the real-time output of the spinning frame.

Description

Online estimation method and related device for spinning frame yield
Technical Field
The application relates to the technical field of spinning, in particular to an online estimation method for the yield of a spinning frame; also relates to an online estimation device, equipment and a computer readable storage medium for the spinning frame output.
Background
The common calculation methods for spinning are divided into fixed length calculation and fixed weight calculation. The english count is the custom-made, with larger counts being finer yarns. The theoretical maximum yield of a spinning frame of a certain type is generally determined for a certain count of yarn. However, the actual yield of the spinning frame is often influenced by the number of broken ends, the technological parameters of the spinning frame and the like, and the existing estimation mode does not consider the factors influencing the actual yield of the spinning frame, so that the estimation accuracy of the yield of the spinning frame is seriously influenced. In view of this, how to accurately estimate the yield of the spinning frame has become a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The application aims to provide an online estimation method for the yield of a spinning frame, which can accurately estimate the yield of the spinning frame. Another object of the present application is to provide an on-line estimation device, an apparatus and a computer readable storage medium for the spinning frame yield, all having the above technical effects.
In order to solve the technical problem, the application provides an online estimation method for the yield of a spinning frame, which comprises the following steps:
acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the process parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
calculating to obtain theoretical estimated yield in the doffing process according to the process parameters;
calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the end breakage duration of the spindle in the process parameters;
calculating to obtain the real-time yield in the doffing process according to the theoretical estimated yield and the yield reduction amount;
and calculating the total yield of a doffing according to the yield reduction amount, the number of the ingots in the process parameters and the design weight of the single yarn fruit.
Optionally, the calculating the theoretical estimated yield in the doffing process according to the process parameters includes:
according toEstimation model
Figure BDA0003035630390000021
Calculating to obtain the theoretical estimated yield of doffing;
wherein M isrt,maxRepresenting a theoretical estimated yield during said doffing; Δ pi＝pi-pi-1，Δpi-1＝pi-1-pi-2，pi、pi-1And pi-2Each represents a cumulative percentage of the length of the one drop;
Figure BDA0003035630390000022
Nerepresenting the number of said threads, ξ1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion coefficient between English system unit code and metric system unit meter, and m represents the design weight of the single yarn fruit; l isi, meter＝ωi·ti, meter·π·D，ωiRepresenting the speed of rotation, t, of the front roller corresponding to the i-th sectioni, meterRepresents the timing corresponding to the i-th stage, D represents the diameter of the front roller, and n represents the number of ingots.
Optionally, the calculating the amount of decrease in the yield in the doffing process according to the rotation speed of the front roller, the diameter of the front roller, the yarn count and the length of broken ends of the spindles in the process parameters includes:
according to an estimation model
Figure BDA0003035630390000023
Calculating to obtain the yield reduction amount of a doffing;
wherein M isbrkRepresenting the amount of decrease in production, omega, during said doffingiRepresenting the rotation speed, T, of the front roller corresponding to the i-th sectionb,jRepresents the time length of the broken end of the j spindle, D represents the diameter of the front roller, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Express the imperial unit of Hounsfield and HengConversion factor, xi, between unit codes3Representing the conversion factor between English unit code and metric unit meter, NeRepresents the yarn count.
Optionally, the calculating the real-time yield in the doffing process according to the theoretically estimated yield and the yield reduction amount includes:
and subtracting the yield reduction amount from the theoretical estimated yield to obtain the real-time yield in the doffing process.
Optionally, the calculating the total yield of a doffing according to the yield reduction amount, the number of ingots in the process parameters and the design weight of the single yarn fruit comprises:
according to an estimation model Md＝η·n·m-MbrkCalculating to obtain the total yield of the doffing;
wherein M isdRepresenting the total yield of said doffing, eta represents the correction factor, n represents the number of said ingots, M represents the design weight of said individual yarn fruits, M represents the weight of said individual yarn fruitsbrkRepresenting the amount of yield reduction during said one-drop.
Optionally, the method further includes:
comparing a theoretical time of doffing with an actual time of spinning;
and if the theoretical time of the doffing is longer than the actual time of the spinning, adjusting the correction coefficient.
In order to solve the above technical problem, the present application further provides an online estimation device for the yield of a spinning frame, including:
the acquisition module is used for acquiring the technological parameters of the spinning frame and counting the broken end duration of the spindles in the spinning frame in real time; the spinning frame comprises the following technological parameters: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
the first calculation module is used for calculating and obtaining theoretical estimated yield in the doffing process according to the process parameters;
the second calculation module is used for calculating and obtaining the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the end breakage duration of the spindle in the process parameters;
the third calculation module is used for calculating to obtain the real-time yield in the doffing process according to the theoretical estimated yield and the yield reduction amount;
and the fourth calculating module is used for calculating the total yield of a doffing according to the yield reduction amount, the number of the spindles of the spinning frame in the process parameters and the design weight of the single yarn fruit.
Optionally, the method further includes:
the comparison module is used for comparing the theoretical time of doffing with the actual time of spinning;
and the adjusting module is used for adjusting and calculating a correction coefficient in an estimation model of the total doffing yield if the theoretical time of the doffing is longer than the actual time of the spinning.
In order to solve the above technical problem, the present application further provides an online estimation device for the yield of a spinning frame, including:
a memory for storing a computer program;
a processor for implementing the steps of the online estimation method of spinning frame yield as described in any one of the above when executing the computer program.
In order to solve the above technical problem, the present application also provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the online estimation method of spinning frame yield as described in any one of the above.
The application provides an online estimation method for the yield of a spinning frame, which comprises the following steps: acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the process parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted; calculating to obtain theoretical estimated yield in the doffing process according to the process parameters; calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the end breakage duration of the spindle in the process parameters; calculating to obtain the real-time yield in the doffing process according to the theoretical estimated yield and the yield reduction amount; and calculating the total yield of a doffing according to the yield reduction amount, the number of the ingots in the process parameters and the design weight of the single yarn fruit.
Therefore, the online estimation method for the yield of the spinning frame provided by the application brings the process parameters of the spinning frame and the broken ends of the spindles into the estimation of the yield of the spinning frame, and fully considers the influence of the process parameters of the spinning frame and the broken ends of the spindles on the yield of the spinning frame, so that the yield of the spinning frame can be accurately estimated even if the process parameters and the like of different spinning frames are different.
The online estimation device, the equipment and the computer-readable storage medium for the yield of the spinning frame have the technical effects.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the prior art and the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of an online estimation method for the yield of a spinning frame according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an on-line estimation device for the spinning frame yield according to an embodiment of the present application;
fig. 3 is a schematic diagram of an online estimation device for the yield of a spinning frame according to an embodiment of the present application.
Detailed Description
The core of the application is to provide an online estimation method for the yield of the spinning frame, which can accurately estimate the yield of the spinning frame. At the other core of the application, the device and the computer-readable storage medium for estimating the yield of the spinning frame on line are provided, and the technical effects are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flow chart of a method for estimating the yield of a spinning frame on line according to an embodiment of the present application, and referring to fig. 1, the method mainly includes:
s101: acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the technological parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
specifically, the technological parameters (such as yarn count, yarn fruit weight, etc.) of different spinning frames generally have differences, and the broken ends of the spindles may be different at different times in the spinning process, and the technological parameters of the spinning frames and the broken ends of the spindles affect the yield of the spinning frames. Therefore, the method includes the steps that technological parameters of a spinning machine and the broken end condition of the spindle are incorporated into yield estimation of the spinning machine, when the yield of the spinning machine is estimated on line, the technological parameters of the spinning machine are firstly obtained, the broken end duration of the spindle is counted in real time, and the yield of the spinning machine is estimated on line according to the technological parameters of the spinning machine and the broken end duration of the spindle.
Wherein, the technological parameters specifically comprise: the accumulated percentage of a doffing length, the yarn count and the spindle speed adopt a multi-section design, the rotating speed and the timing of a front roller corresponding to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit.
The spun yarn count is defined as: at a nominal moisture regain, for a yarn weighing one pound, there are as many henries in length, referred to as how many yarns are. The spindle speed of a spinning machine is usually designed in a multi-section mode, namely, for spun yarns with a certain length, the spinning process is completed in a sectional mode, and when each section of spun yarns is spun, the rotating speed and the timing of a front roller corresponding to each section are achieved. Assuming that the spindle speed adopts an N-segment design, a certain length of spun yarn is finished by N segments. In addition, when the ingot speed is designed in an N-stage manner, the cumulative percentage of the doffing length is recorded as piAnd i is more than or equal to 1 and less than or equal to N. When i takes different values, piRepresenting the cumulative percentage of time corresponding to the segment.
S102: calculating to obtain theoretical estimated yield in the doffing process according to the technological parameters;
specifically, the doffing is used as a calculation unit, and on the basis of obtaining the technological parameters of the spinning frame, the theoretical estimated yield in the doffing process is calculated according to the obtained technological parameters.
Wherein, the above-mentioned manner of calculating the theoretical estimated yield in the doffing process according to the process parameters may be:
according to an estimation model
Figure BDA0003035630390000061
Calculating to obtain theoretical estimated yield in a doffing process;
wherein M isrt,maxRepresenting a theoretical estimated yield during a doffing process; Δ pi＝pi-pi-1，Δpi-1＝pi-1-pi-2，pi、pi-1And pi-2Each represents a cumulative percentage of a doff length; l isdRepresents a doffing length, and
Figure BDA0003035630390000062
Neindicating the yarn count, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams1＝453.6，ξ2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code2＝840，ξ3Representing the conversion coefficient, ξ, between English-system unit code and metric-system unit meter30.914, m represents the design weight of a single yarn fruit; l isi, meter＝ωi·ti, meter·π·D；ωiThe rotating speed of the front roller corresponding to the ith section is expressed in radian/minute; t is ti, meterThe timing corresponding to the ith section is expressed in minutes; d represents the diameter of the front roller and the unit is meter; n represents the number of ingots.
S103: calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the process parameters;
specifically, the step aims to calculate the yield reduction of the spinning frame due to yarn breakage in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the yarn breakage duration of the spindle in the acquired technological parameters.
The method for calculating the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the process parameters comprises the following steps:
according to an estimation model
Figure BDA0003035630390000063
Calculating to obtain the yield reduction amount in a doffing process;
wherein M isbrkIndicating the amount of yield reduction, omega, in a doffing processiIndicating the rotation speed of the front roller corresponding to the i-th section, Tb,jShowing the end break time of the jth spindle, D showing the diameter of the front roller, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion factor between English unit code and metric unit meter, NeIndicates the yarn count.
S104: estimating the yield and the yield reduction amount according to a theory, and calculating to obtain the real-time yield in the doffing process;
specifically, after the theoretical estimated yield in the doffing process and the yield reduction amount caused by yarn breakage in the doffing process are calculated, the real-time yield in the doffing process is further calculated according to the theoretical estimated yield and the yield reduction amount, and specifically, the theoretical estimated yield and the yield reduction amount are subtracted to obtain the real-time yield in the doffing process.
S105: and calculating the total yield of a doff according to the yield reduction amount, the number of ingots in the process parameters and the design weight of a single yarn fruit.
Specifically, the step is to calculate the total yield of a doff based on the reduction of the yield and the number of ingots in the obtained process parameters and the design weight of the single yarn fruit.
As a preferred embodiment, the total yield of a doff is calculated according to the yield reduction and the number of ingots in the process parameters and the design weight of a single yarn fruit by:
according to an estimation model Md＝η·n·m-MbrkCalculating to obtain the total yield of doffing;
wherein M isdRepresenting the total yield of a doff, eta represents the correction factor, n represents the number of ingots, M represents the design weight of a single yarn fruit, MbrkRepresenting the amount of yield reduction during a doff.
Specifically, the present embodiment introduces a correction factor in calculating the total production of a drop, which correction factor is determined based on a priori knowledge. According to actual conditions such as industry requirements, business scale, data complexity and the like, industrial data are classified, sorted and identified in advance to form an enterprise industrial data classification list, wherein the enterprise industrial data classification list comprises a research and development data field (research and development design data, development test data and the like), a production data field (control information, working condition states, process parameters, system logs and the like), an operation and maintenance data field (logistics data, product after-sale service data and the like), a management data field (system equipment asset information, customer and product information, product supply chain data, business statistical data and the like), and an external data field (data shared with other main bodies and the like). And on the basis, a priori knowledge base is constructed, a correction coefficient is obtained by analyzing and summarizing historical data of the yield of the spinning frame, and the correction coefficient is used for carrying out online correction on the total yield of the doffing to obtain more accurate total yield of the doffing.
Further, on the basis of the above embodiment, the method further includes:
comparing a theoretical time of doffing with an actual time of spinning;
if the theoretical time of a doffing is greater than the actual time of spinning, the correction factor is adjusted.
Specifically, the theoretical time of a doffing
Figure BDA0003035630390000081
Actual time of spinning
Figure BDA0003035630390000082
During the spinning process, the doffing state, namely T, is often brought into advanceMeter＜TdTherefore, the actual weight of the yarn is smaller than the designed weight, so that the estimation of the total doffing output is influenced, in order to guarantee the accuracy and the effectiveness of the estimation of the total doffing output, the embodiment also compares the theoretical time of doffing with the actual time of spinning, if the theoretical time of doffing is longer than the actual time of spinning, the correction coefficient needs to be adjusted at the moment, and the correction coefficient can be reduced based on the priori knowledge. On the contrary, if the theoretical time for a doffing is not greater than the actual time for spinning, the correction factor is kept unchanged.
In summary, the online estimation method for the yield of the spinning frame provided by the application brings the process parameters of the spinning frame and the broken ends of the spindles into the estimation of the yield of the spinning frame, and fully considers the influence of the process parameters of the spinning frame and the broken ends of the spindles on the yield of the spinning frame, so that the yield of the spinning frame can be accurately estimated even if the process parameters and the like of different spinning frames are different.
The application also provides an online estimation device for the yield of the spinning frame, and the device described below can be mutually and correspondingly referenced with the method described above. Referring to fig. 2, fig. 2 is a schematic diagram of an online estimation apparatus for the yield of a spinning frame according to an embodiment of the present application, and shown in fig. 2, the apparatus includes:
the acquisition module is used for acquiring the technological parameters of the spinning frame and counting the broken end duration of the spindles in the spinning frame in real time; the spinning frame comprises the following technological parameters: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
the first calculation module is used for calculating and obtaining theoretical estimated yield in the doffing process according to the process parameters;
the second calculation module is used for calculating and obtaining the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the technological parameters;
the third calculation module is used for calculating to obtain the real-time yield in the doffing process according to the yield and the yield reduction amount theoretically estimated;
and the fourth calculation module is used for calculating the total yield of the doffing according to the yield reduction amount, the number of the spindles of the spinning frame in the process parameters and the design weight of a single yarn fruit.
On the basis of the foregoing embodiment, optionally, the first calculating module 20 is specifically configured to:
according to an estimation model
Figure BDA0003035630390000091
Calculating to obtain theoretical estimated yield in a doffing process;
wherein M isrt,maxRepresenting a theoretical estimated yield during a doffing process; Δ pi＝pi-pi-1，Δpi-1＝pi-1-pi-2，pi、pi-1And pi-2Each represents a cumulative percentage of a doff length;
Figure BDA0003035630390000092
Neindicating the number of threads，ξ1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion coefficient between English system unit code and metric system unit meter, and m represents the design weight of single yarn fruit; l isi, meter＝ωi·ti, meter·π·D，ωiIndicating the rotation speed of the front roller, t, corresponding to the i-th sectioni, meterThe timing corresponding to the i-th stage is shown, D is the diameter of the front roller, and n is the number of ingots.
On the basis of the foregoing embodiment, optionally, the second calculating module 30 is specifically configured to:
according to an estimation model
Figure BDA0003035630390000093
Calculating to obtain the yield reduction amount in a doffing process;
wherein M isbrkIndicating the amount of yield reduction, omega, in a doffing processiIndicating the rotation speed of the front roller corresponding to the i-th section, Tb,jShowing the end break time of the jth spindle, D showing the diameter of the front roller, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion factor between English unit code and metric unit meter, NeIndicates the yarn count.
On the basis of the foregoing embodiment, optionally, the third calculating module 40 is specifically configured to:
and subtracting the yield reduction amount from the theoretically estimated yield to obtain the real-time yield in the doffing process.
On the basis of the foregoing embodiment, optionally, the fourth calculating module 50 is specifically configured to:
according to an estimation model Md＝η·n·m-MbrkCalculating to obtain the total yield of doffing;
wherein M isdRepresenting the total yield of a doff, eta represents the correction factor, n represents the number of ingots, M represents the design weight of a single yarn fruit, MbrkRepresenting the amount of yield reduction during a doff.
On the basis of the above embodiment, optionally, the method further includes:
the comparison module is used for comparing the theoretical time of doffing with the actual time of spinning;
and the adjusting module is used for adjusting and calculating a correction coefficient in an estimation model of the total doffing output if the theoretical time of doffing is greater than the actual time of spinning.
The present application also provides an on-line estimation device of the spinning frame yield, shown with reference to fig. 3, comprising a memory 1 and a processor 2.
A memory 1 for storing a computer program;
a processor 2 for executing a computer program to implement the steps of:
acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the technological parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted; calculating to obtain theoretical estimated yield in the doffing process according to the technological parameters; calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the process parameters; estimating the yield and the yield reduction amount according to a theory, and calculating to obtain the real-time yield in the doffing process; and calculating the total yield of a doff according to the yield reduction amount, the number of ingots in the process parameters and the design weight of a single yarn fruit.
For the introduction of the device provided in the present application, please refer to the above method embodiment, which is not described herein again.
The present application further provides a computer readable storage medium having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the technological parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted; calculating to obtain theoretical estimated yield in the doffing process according to the technological parameters; calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the broken end duration of the spindle in the process parameters; estimating the yield and the yield reduction amount according to a theory, and calculating to obtain the real-time yield in the doffing process; and calculating the total yield of a doff according to the yield reduction amount, the number of ingots in the process parameters and the design weight of a single yarn fruit.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
For the introduction of the computer-readable storage medium provided in the present application, please refer to the above method embodiments, which are not described herein again.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device, the apparatus and the computer-readable storage medium disclosed by the embodiments correspond to the method disclosed by the embodiments, so that the description is simple, and the relevant points can be referred to the description of the method.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The method, the device, the equipment and the computer readable storage medium for estimating the yield of the spinning frame provided by the application in detail are described above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (9)

1. An online estimation method for the yield of a spinning frame is characterized by comprising the following steps:
acquiring technological parameters of a spinning frame and counting the broken end duration of a spindle in the spinning frame in real time; the process parameters comprise: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
calculating to obtain theoretical estimated yield in the doffing process according to the process parameters;
calculating to obtain the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the end breakage duration of the spindle in the process parameters;
calculating to obtain the real-time yield in the doffing process according to the theoretical estimated yield and the yield reduction amount;
calculating the total yield of a doffing according to the yield reduction amount, the number of ingots in the process parameters and the design weight of the single yarn fruit;
the step of calculating and obtaining the theoretical estimated yield in the doffing process according to the process parameters comprises the following steps:
according to an estimation model
Figure FDA0003418240350000011
Calculating to obtain theoretical estimated yield in a doffing process;
wherein M isrt,maxRepresenting a theoretical estimated yield during said doffing; Δ pi＝pi-pi-1，Δpi-1＝pi-1-pi-2，pi、pi-1And pi-2Each represents a cumulative percentage of the length of the one drop;
Figure FDA0003418240350000012
Nerepresenting the number of said threads, ξ1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion coefficient between English system unit code and metric system unit meter, and m represents the design weight of the single yarn fruit; l isi, meter＝ωi·ti, meter·π·D，ωiRepresenting the speed of rotation, t, of the front roller corresponding to the i-th sectioni, meterRepresents the timing corresponding to the i-th stage, D represents the diameter of the front roller, and n represents the number of ingots.
2. The on-line estimation method of claim 1, wherein the calculating the reduction amount of the yield in a doffing process according to the rotation speed of the front roller, the diameter of the front roller, the yarn count and the length of the broken end of the spindle in the process parameters comprises:
according to an estimation model
Figure FDA0003418240350000013
Calculating to obtain the yield reduction amount in a doffing process;
wherein M isbrkRepresenting the amount of decrease in production, omega, during said doffingiRepresenting the rotation speed, T, of the front roller corresponding to the i-th sectionb,jRepresents the time length of the broken end of the j spindle, D represents the diameter of the front roller, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion factor between English unit code and metric unit meter, NeRepresents the yarn count.
3. The on-line estimation method of claim 1, wherein the calculating the real-time yield in a doffing process according to the theoretical estimated yield and the yield reduction amount comprises:
and subtracting the yield reduction amount from the theoretical estimated yield to obtain the real-time yield in the doffing process.
4. The on-line estimation method of claim 1, wherein the calculating a total production of a drop based on the reduction in production and the number of ingots in the process parameters and the design weight of the individual yarn fruits comprises:
according to an estimation model Md＝η·n·m-MbrkCalculating to obtain the total yield of the doffing;
wherein M isdRepresenting the total yield of said doffing, eta represents the correction factor, n represents the number of said ingots, M represents the design weight of said individual yarn fruits, M represents the weight of said individual yarn fruitsbrkRepresenting the amount of yield reduction during said one-drop.
5. The online estimation method according to claim 4, further comprising:
comparing a theoretical time of doffing with an actual time of spinning;
and if the theoretical time of the doffing is longer than the actual time of the spinning, adjusting the correction coefficient.
6. An on-line estimation device for the yield of a spinning frame is characterized by comprising the following components:
the acquisition module is used for acquiring the technological parameters of the spinning frame and counting the broken end duration of the spindles in the spinning frame in real time; the spinning frame comprises the following technological parameters: the accumulated percentage of the doffing length, the yarn count and the spindle speed adopt multi-section design, when the front roller rotating speed and the timing which correspond to each section, the diameter of the front roller, the spindle number of a spinning machine and the design weight of a single yarn fruit are adopted;
the first calculation module is used for calculating and obtaining theoretical estimated yield in the doffing process according to the process parameters;
the second calculation module is used for calculating and obtaining the yield reduction amount in the doffing process according to the rotating speed of the front roller, the diameter of the front roller, the yarn count and the end breakage duration of the spindle in the process parameters;
the third calculation module is used for calculating to obtain the real-time yield in the doffing process according to the theoretical estimated yield and the yield reduction amount;
the fourth calculation module is used for calculating the total yield of a doffing according to the yield reduction amount, the number of the spindles of the spinning frame in the process parameters and the design weight of the single yarn fruit;
the first calculation module is specifically configured to:
according to an estimation model
Figure FDA0003418240350000031
Calculating to obtain theoretical estimated yield in a doffing process;
wherein M isrt,maxRepresenting a theoretical estimated yield during a doffing process; Δ pi＝pi-pi-1，Δpi-1＝pi-1-pi-2，pi、pi-1And pi-2Each represents a cumulative percentage of a doff length;
Figure FDA0003418240350000032
Neindicating the yarn count, xi1Representing the conversion factor, ξ, between English unit pounds and metric units grams2Representing the conversion coefficient, ξ, between imperial units of Hounsfield and metric units of code3Representing the conversion coefficient between English system unit code and metric system unit meter, and m represents the design weight of single yarn fruit; l isi, meter＝ωi·ti, meter·π·D，ωiIndicating the rotation speed of the front roller, t, corresponding to the i-th sectioni, meterThe timing corresponding to the i-th stage is shown, D is the diameter of the front roller, and n is the number of ingots.
7. The on-line estimation device according to claim 6, further comprising:
the comparison module is used for comparing the theoretical time of doffing with the actual time of spinning;
and the adjusting module is used for adjusting and calculating a correction coefficient in an estimation model of the total yield of the doffing if the theoretical time of the doffing is greater than the actual time of the spinning.
8. An on-line estimation device for the spinning frame output is characterized by comprising:
a memory for storing a computer program;
processor for implementing the steps of the method for the on-line estimation of the spinning frame yield as claimed in any one of claims 1 to 5 when said computer program is executed.
9. A computer-readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the online estimation method of spinning frame yield according to any one of claims 1 to 5.
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