CN118218499A - Material deviation correcting method and equipment based on speed signal - Google Patents
Material deviation correcting method and equipment based on speed signal Download PDFInfo
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- 238000003708 edge detection Methods 0.000 claims abstract description 71
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- 238000004519 manufacturing process Methods 0.000 description 5
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/021—Control or correction devices in association with moving strips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/021—Control or correction devices in association with moving strips
- B21D43/023—Centering devices, e.g. edge guiding
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a material deviation rectifying method and device based on a speed signal, wherein the method comprises the following steps: taking the initial edge of the material as a first edge, and responding to a material edge detection request to acquire a speed signal when the material edge is detected; recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material; judging whether the material needs to be corrected or not based on the first moment and the second moment; if yes, determining a deviation rectifying action parameter according to the speed signal, rectifying the material in a preset direction according to the deviation rectifying action parameter, controlling a deviation rectifying process through the speed signal in the material deviation rectifying process, determining deviation rectifying force according to the speed signal, and guaranteeing the accuracy and safety of deviation rectifying.
Description
Technical Field
The application relates to the technical field of material deviation correction, in particular to a material deviation correction method and device based on a speed signal.
Background
In the actual production of the battery, due to the requirement of the production process, the material needs to cut out the shape of the tab required by the subsequent production, and the normal correction takes the edge of the material as a reference, but the correction is disturbed after the tab appears.
For example, in the material correcting process, when the edge detection sensor performs the correcting process, the edge exists on the electrode lug and the material, so that the edge of the electrode lug is often confused with the edge of the material when the edge detection sensor performs the correcting process, the situation that the correcting process is not corrected or is wrong is caused to occur for a long time, the material correcting process is affected, meanwhile, the material speed in the correcting process is high, the correcting force cannot be accurately mastered, and the situation that the electrode lug is broken and the like is caused to occur due to overlarge correcting force.
Therefore, how to provide a material deviation rectifying method and device based on a speed signal, which control the deviation rectifying process through the speed signal in the material deviation rectifying process, determine the deviation rectifying force according to the speed signal, and ensure the accuracy and the safety of deviation rectifying is the technical problem to be solved at present.
Disclosure of Invention
The invention provides a material deviation rectifying method and equipment based on a speed signal, which are used for solving the technical problem that the deviation rectifying process is failed due to lower safety and accuracy in the deviation rectifying process in the prior art, and the method comprises the following steps:
taking the initial edge of the material as a first edge, and responding to a material edge detection request to acquire a speed signal when the material edge is detected;
recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material;
Judging whether the material needs to be corrected or not based on the first moment and the second moment;
if yes, determining a deviation rectifying action parameter according to the speed signal, and rectifying the deviation of the material in a preset direction according to the deviation rectifying action parameter.
In some embodiments, whether the material needs to be rectified is determined based on the first time and the second time, specifically:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
In some embodiments, a first distance difference between a first edge and the second edge is obtained, and a second distance difference between the first edge and the third edge is obtained, specifically:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
In some embodiments, the first edge detection speed and the second edge detection speed are compared with the speed signal respectively, and whether to correct the deviation is determined according to the comparison result, which specifically includes:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
In some embodiments, if yes, determining a deviation rectifying action parameter according to the speed signal, and rectifying the material in a predetermined direction according to the deviation rectifying action parameter, which specifically is:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
Correspondingly, the invention also provides a material deviation rectifying device based on the speed signal, which comprises:
The acquisition module is used for taking the initial edge of the material as a first edge, responding to a material edge detection request and acquiring a speed signal when the material edge is detected;
the recording module is used for recording a first moment when a second edge of the material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of the tab of the material, and the third edge is the right side edge of the tab of the material;
the judging module is used for judging whether the material is required to be corrected or not based on the first moment and the second moment;
and the deviation rectifying module is used for determining deviation rectifying action parameters according to the speed signals if yes, and rectifying the deviation of the material in a preset direction according to the deviation rectifying action parameters.
In some embodiments, the judging module is specifically configured to:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
In some embodiments, the judging module is specifically configured to:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
In some embodiments, the judging module is specifically configured to:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
In some embodiments, the deviation rectifying module is specifically configured to:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
By applying the technical scheme, the material deviation rectifying method based on the speed signal is provided, and the method comprises the following steps: taking the initial edge of the material as a first edge, and responding to a material edge detection request to acquire a speed signal when the material edge is detected; recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material; judging whether the material needs to be corrected or not based on the first moment and the second moment; if yes, determining a deviation rectifying action parameter according to the speed signal, rectifying the material in a preset direction according to the deviation rectifying action parameter, controlling a deviation rectifying process through the speed signal in the material deviation rectifying process, determining deviation rectifying force according to the speed signal, and guaranteeing the accuracy and safety of deviation rectifying.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a schematic flow chart of a material deviation rectifying method based on a speed signal according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a material deviation rectifying device based on a speed signal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1, the application provides a material deviation rectifying method based on a speed signal, which comprises the following steps:
In step S101, with the initial edge of the material as the first edge, a speed signal at the time of material edge inspection is acquired in response to the material edge inspection request.
In this embodiment, the initial edge refers to an edge that can be identified by the edge detection sensor when the material is placed in the device to perform production processing, and the edge is taken as a first edge, and comprehensive judgment is performed according to the speed signal and the edge identified subsequently, so as to determine the position of the material, and whether deviation correction is required.
In this embodiment, the speed signal may be manually input by the controller or may be obtained by a detecting device such as a speed sensor, so as to determine the moving speed of the material on the device.
Step S102, recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material.
In this embodiment, the left and right edges of the tab in the material are used as the second edge and the third edge, and the first time and the second time when the edge detection sensor detects the second edge and the third edge are recorded.
Step S103, judging whether the material needs to be rectified or not based on the first moment and the second moment.
In this embodiment, according to the time when the second edge and the third edge are collected, that is, the first time and the second time in this scheme, and in combination with the speed signal, it is automatically determined whether the material needs to be corrected.
In order to accurately determine whether deviation correction is needed, in some embodiments of the present application, whether deviation correction is needed for the material is determined based on the first time and the second time, specifically:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
In this embodiment, since the positions of the tabs corresponding to the material are fixed, the distances between the left and right edges of the tab and the initial edge of the material are fixed, that is, the distances between the second edge and the third edge are fixed relative to the first edge, so that the distance differences between the first edge and the second edge and between the third edge are obtained, including the first distance difference and the second distance difference, and accordingly, the required time from the first edge to the second edge and the third edge, that is, the first time difference and the second time difference, can be obtained respectively, so that the actual speed from the first edge to the second edge, that is, the first edge detection speed and the second edge detection speed corresponding to the third edge can be known, and whether the material needs to be rectified or not can be known by comparing the actual first edge detection speed and the second edge detection speed with the set speed signals.
In order to automatically obtain the first distance difference and the second distance difference, and implement automation of the deviation rectifying process, in some embodiments of the present application, the first distance difference between the first edge and the second edge is obtained, and the second distance difference between the first edge and the third edge is obtained, specifically:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
In this embodiment, in order to further improve the automation degree of the deviation rectifying process, the corresponding feature information including the material type and the material number may be set on the material, and the position of the tab may be automatically identified by identifying the feature information, so as to obtain the corresponding second edge and the third edge.
In order to accurately determine whether correction is needed, in some embodiments of the present application, the first edge detection speed and the second edge detection speed are compared with the speed signal respectively, and whether correction is needed is determined according to a comparison result, which specifically includes:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
In this embodiment, the deviation between the first edge detection speed and the second edge detection speed and the speed signal is calculated and recorded as a first deviation value and a second deviation value, and when any one of the first deviation value and the second deviation value exceeds a first preset deviation value, it is indicated that correction is required.
In this embodiment, in order to further ensure the accuracy of deviation correction and the safety of material curling, the deviation correcting process of the material may be further predicted, specifically, the deviation amount of the speed when the second edge reaches the third edge, that is, the third deviation value, is determined, and compared with the second preset deviation value according to the third deviation value, whether the deviation trend is too large when passing through the two tabs may be determined, deviation correction may be performed in time, deviation correction caused by too large deviation of the subsequent material is avoided, and the sensitivity and response efficiency of deviation correction are improved.
In order to ensure the safety of the deviation correcting process, in some embodiments of the present application, if yes, determining a deviation correcting action parameter according to the speed signal, and correcting the deviation of the material in a predetermined direction according to the deviation correcting action parameter, specifically:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
In this embodiment, when the production line accelerates and decelerates, the deviation rectifying precision can obviously fluctuate, mainly because of the insufficient deviation rectifying efficiency, when the acceleration and deceleration are performed, higher PID parameters are needed to solve larger fluctuation, when the uniform motion is performed, the higher PID parameters can cause the overshoot of the system, and the controller can adopt two sets of different PID parameters to participate in the control of deviation rectifying offset at uniform speed and acceleration and deceleration, so that the integral deviation rectifying precision of the system is greatly improved.
By applying the technical scheme, the material deviation rectifying method based on the speed signal is provided, and the method comprises the following steps: taking the initial edge of the material as a first edge, and responding to a material edge detection request to acquire a speed signal when the material edge is detected; recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material; judging whether the material needs to be corrected or not based on the first moment and the second moment; if yes, determining a deviation rectifying action parameter according to the speed signal, rectifying the material in a preset direction according to the deviation rectifying action parameter, controlling a deviation rectifying process through the speed signal in the material deviation rectifying process, determining deviation rectifying force according to the speed signal, and guaranteeing the accuracy and safety of deviation rectifying.
The embodiment of the application also provides a material deviation rectifying device based on the speed signal, as shown in fig. 2, the device comprises:
an acquisition module 10, configured to acquire a speed signal when the material is detected by using an initial edge of the material as a first edge, in response to a material detection request;
A recording module 20, configured to record a first time when a second edge of a material is collected and a second time when a third edge is collected, where the second edge is a left edge of a tab of the material, and the third edge is a right edge of the tab of the material;
A judging module 30, configured to judge whether deviation correction is required for the material based on the first time and the second time;
and the deviation rectifying module 40 is used for determining a deviation rectifying action parameter according to the speed signal if yes, and rectifying the material in a preset direction according to the deviation rectifying action parameter.
In a specific application scenario, the judging module is specifically configured to:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
In a specific application scenario, the judging module is specifically configured to:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
In a specific application scenario, the judging module is specifically configured to:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
In a specific application scenario, the deviation rectifying module is specifically configured to:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of the invention, "a plurality" means two or more, unless otherwise specifically and clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "access", "connected", and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (10)
1. A method of material correction based on a velocity signal, the method comprising:
taking the initial edge of the material as a first edge, and responding to a material edge detection request to acquire a speed signal when the material edge is detected;
recording a first moment when a second edge of a material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of a tab of the material, and the third edge is the right side edge of the tab of the material;
Judging whether the material needs to be corrected or not based on the first moment and the second moment;
if yes, determining a deviation rectifying action parameter according to the speed signal, and rectifying the deviation of the material in a preset direction according to the deviation rectifying action parameter.
2. The method according to claim 1, wherein determining whether deviation correction of the material is required is based on the first time and the second time, specifically:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
3. The method according to claim 1 or 2, characterized in that a first distance difference between a first edge and the second edge is obtained and a second distance difference between a first edge and the third edge is obtained, in particular:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
4. The method according to claim 2, wherein the first edge detection speed and the second edge detection speed are compared with the speed signal respectively, and whether deviation correction is performed is determined according to a comparison result, specifically:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
5. The method according to claim 1, wherein if so, determining a deviation correcting action parameter according to the speed signal, and correcting the deviation of the material in a predetermined direction according to the deviation correcting action parameter, specifically:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
6. A material deflection correction device based on a velocity signal, the device comprising:
The acquisition module is used for taking the initial edge of the material as a first edge, responding to a material edge detection request and acquiring a speed signal when the material edge is detected;
the recording module is used for recording a first moment when a second edge of the material is acquired and a second moment when a third edge of the material is acquired, wherein the second edge is the left side edge of the tab of the material, and the third edge is the right side edge of the tab of the material;
the judging module is used for judging whether the material is required to be corrected or not based on the first moment and the second moment;
and the deviation rectifying module is used for determining deviation rectifying action parameters according to the speed signals if yes, and rectifying the deviation of the material in a preset direction according to the deviation rectifying action parameters.
7. The apparatus of claim 6, wherein the determining module is specifically configured to:
Acquiring a first distance difference between a first edge and the second edge, and acquiring a second distance difference between the first edge and the third edge;
taking the time at the initial edge of the material as the initial time, acquiring the time difference between the first time and the initial time and recording the time difference as a first time difference, and acquiring the time difference between the second time and the initial time and recording the time difference as a second time difference;
determining a first edge detection speed based on a first distance difference and the first time difference, and determining a second edge detection speed based on a second distance difference and the second time difference;
And comparing the first edge detection speed with the second edge detection speed with the speed signal respectively, and judging whether deviation correction is carried out according to a comparison result.
8. The apparatus according to claim 6 or 7, wherein the judging module is specifically configured to:
acquiring characteristic information of a material, wherein the characteristic information is specifically a material number or a material type of the material;
Determining the position of a tab of the material according to the characteristic information of the material, and determining the second edge and the third edge according to the position of the tab;
the first and second distance differences are obtained based on the first, second, and third edges.
9. The method of claim 7, wherein the determining module is specifically configured to:
Acquiring a first deviation value of the first edge detection speed and the speed signal, and acquiring a second deviation value of the second edge detection speed and the speed signal;
When any one of the first deviation value and the second deviation value exceeds a first preset deviation value, the material needs to be corrected;
when the first deviation value and the second deviation value do not exceed a first preset deviation value, a third deviation value of the first edge detection speed and the second edge detection speed is obtained;
When the third deviation value exceeds a second preset deviation value, the material needs to be corrected.
10. The method of claim 6, wherein the deskewing module is specifically configured to:
obtaining a deviation rectifying state of the material, wherein the deviation rectifying state comprises acceleration and deceleration deviation rectifying or uniform deviation rectifying;
determining corresponding PID parameters according to the deviation rectifying state;
Determining corresponding deviation rectifying action parameters according to the speed signals, wherein the deviation rectifying action parameters comprise deviation rectifying force and deviation rectifying frequency;
And PID control is carried out according to the PID parameters and the deviation rectifying action parameters so as to realize deviation rectifying of the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410157586.6A CN118218499A (en) | 2024-02-04 | 2024-02-04 | Material deviation correcting method and equipment based on speed signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410157586.6A CN118218499A (en) | 2024-02-04 | 2024-02-04 | Material deviation correcting method and equipment based on speed signal |
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| Publication Number | Publication Date |
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| CN118218499A true CN118218499A (en) | 2024-06-21 |
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| CN202410157586.6A Pending CN118218499A (en) | 2024-02-04 | 2024-02-04 | Material deviation correcting method and equipment based on speed signal |
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