CN115467152A - Vacuum control system and method in process of cutting while walking - Google Patents
Vacuum control system and method in process of cutting while walking Download PDFInfo
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- CN115467152A CN115467152A CN202210999820.0A CN202210999820A CN115467152A CN 115467152 A CN115467152 A CN 115467152A CN 202210999820 A CN202210999820 A CN 202210999820A CN 115467152 A CN115467152 A CN 115467152A
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- vacuum
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- negative pressure
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
- D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention discloses a vacuum control system in the process of cutting while walking, comprising: the industrial personal computer comprises a communication module; the communication module is connected with a vacuum module, the vacuum module is connected with a filtering system, and the filtering system is connected with a vacuum cavity; the vacuum degree of the cutting area is monitored in real time, and closed-loop real-time adjustment is performed, so that the best fabric adsorption effect is achieved, the cutting precision is improved, and the loss caused by cutting faults due to the fact that the fabric is not firmly adsorbed is avoided; by accurately controlling the vacuum degree of the cutting area, the vacuum degree of the cutting area in the fabric conveying process is kept constant, the fabric is ensured to be loaded more constantly in the conveying process, and the conveying precision is ensured; by accurately controlling the vacuum degree of the cutting area, the cutting area is guaranteed to keep the optimal vacuum degree all the time, the cutting quality and efficiency are guaranteed, and meanwhile energy waste is avoided.
Description
Technical Field
The invention relates to the technical field of vacuum control of cutting while walking of a cutting bed, in particular to a vacuum control system and method in the process of cutting while walking.
Background
The cutting bed mainly comprises a cutting table, a cutter holder, a cutter frame, an operation panel and a vacuum suction device, and a material picking table, wherein the vacuum suction device is connected with a suction port under the cutting table through a guide pipe, the air between the table top and an unvented plastic film covered on the cloth is pumped out after starting, the fabric is compressed by using atmospheric pressure, and is tightly adsorbed on the cutting table, so that the fabric layer cannot slide due to the movement of the cutting knife when being cut, and the accuracy of cutting pieces is ensured. In the field of conventional cutting devices, after the fabric is cut, the cut pieces are conveyed from the cutting table to the material picking table, i.e. through the window, by manually turning off the vacuum suction device and then manually carrying or using the conveying device to convey the fabric to the material picking table.
The prior art has a plurality of defects of vacuum adsorption when the cutting bed is cut while moving.
For example, an "automatic window-passing method for cutting bed" disclosed in chinese patent document, the publication number: CN105883465B discloses a method including obtaining a vacuum suction force drop signal according to a cutting signal, and transmitting the vacuum suction force after the vacuum suction force reaches a required value, but this solution only solves the problem of cloth deviation.
Disclosure of Invention
In order to solve the problem that vacuum adsorption can only solve the problem of cloth deviation during the cutting while moving in the prior art, the invention provides a vacuum control system and a vacuum control method during the cutting while moving, which can monitor the vacuum state of the whole cutting process in real time, accurately control the vacuum degree of a cutting area in a closed loop manner, and ensure that the fabric is fixed and stable to meet the adsorption requirement during the cutting while moving.
In order to achieve the above purpose, the invention provides the following technical scheme:
a vacuum control system for a walk-through trim process, comprising: the industrial personal computer comprises a communication module; the communication module is connected with a vacuum module, the vacuum module is connected with a filtering system, and the filtering system is connected with a vacuum cavity. The communication module is used for communicating the industrial personal computer with the vacuum module, the filtering system and the vacuum cavity respectively, and the industrial personal computer is used for monitoring the vacuum module, the filtering system and the vacuum cavity through the communication module and carrying out feedback control according to monitoring data. The vacuum module is used for vacuum adsorption of the cloth, the filtering system is used for filtering air in the vacuumizing process, the vacuum cavity is used for storing the air in the vacuumizing process,
preferably, the vacuum chamber is provided with a negative pressure sensor, the negative pressure sensor is connected with the communication module, and the negative pressure sensor transmits the third analog quantity to the communication module. The pressure change in the vacuum cavity is monitored through the negative pressure sensor, the pressure change information is converted into third analog quantity, the third analog quantity is transmitted to the industrial personal computer through the communication module, the industrial personal computer records the size of the third analog quantity, the change time of the third analog quantity is counted at the same time, comprehensive judgment is carried out according to the change time length of the third analog quantity in a set change interval, and the change time length is used as confidence to carry out reliability control on the action signal. The control can be carried out by detecting the pressure change time in the vacuum cavity, and the fault can be estimated according to the pressure change time length; when the equipment is inclined, deviated and missed, the action signal is adjusted according to the change time length and the third analog quantity.
Preferably, the filtering system is provided with a differential pressure sensor, the differential pressure sensor is connected with the communication module, and the differential pressure sensor transmits the second analog quantity to the communication module. The pressure difference sensor is used for monitoring the pressure difference change in the filtering system, the pressure difference condition in the vacuum adsorption process is monitored in real time, the adsorption condition is monitored according to the pressure difference change condition in the adsorption process, the condition that the vacuum adsorption is not firm is detected in time, the pressure difference change information is converted into a second analog quantity, the second analog quantity is sent to the industrial personal computer through the communication module, the industrial personal computer monitors the vacuum adsorption process in real time according to the change of the second analog quantity, a threshold value is set for the second analog quantity, the vacuum adsorption is judged to be not met when the second analog quantity exceeds the threshold value, and a change action signal is set and sent. The vacuum adsorption process can be monitored by monitoring the pressure difference change in the filtering system, the pressure difference in the vacuum adsorption process is ensured to be normal, a change action signal is sent out when the pressure difference exceeds a threshold value, and the action signal is allowed to be sent out when the pressure difference is within the threshold value range.
Preferably, the vacuum module is connected with a frequency converter, the frequency converter is connected with the communication module, the frequency converter sends the first analog quantity to the communication module, and the vacuum module is connected with a silencing system. The frequency converter is used for controlling the output power of the vacuum module, the industrial personal computer sends an action signal to the frequency converter through the communication module, the frequency converter controls the vacuum module to start and stop and carry out frequency conversion according to the action signal, and meanwhile, the noise generated when the vacuum module works is eliminated through the silencing system. The working mode of the vacuum module can be changed, and the universality is improved.
A vacuum control method in the process of cutting while walking comprises the following steps:
s1, preparing cutting, and setting a parameter threshold;
s2, starting cutting and monitoring a negative pressure value;
s3, taking the negative pressure value as an execution signal of an action sequence;
and S4, cutting while finishing according to the change of the negative pressure value. Setting a parameter threshold value for each analog quantity, wherein the parameter threshold value is the analog quantity change range when the system normally works, switching between different working effects and working modes can be realized by setting different parameter threshold values, and the setting of the parameter threshold value is the setting of the working mode of the system; opening vacuum after cutting, monitoring the vacuum adsorption condition by collecting analog quantity, sending a feedback action signal if one analog quantity does not reach a parameter threshold value, changing the output power of a vacuum module, starting cutting after the analog quantity reaches the parameter threshold value, simultaneously monitoring a negative pressure value according to a third analog quantity and using the negative pressure value as an adjusting signal to perform feedback control, and judging the vacuum adsorption effect in the cutting process according to the pressure of a vacuum cavity; reducing the output of the vacuum system after finishing the cutting action signal, and performing feedback control by taking the third analog quantity as an execution signal of an action sequence; starting a window after the negative pressure value is lower than the negative pressure value for starting the window-passing action, lifting the output of a vacuum system after the window-passing action is started, performing feedback control on the third analog quantity monitoring negative pressure value as an execution signal of the action sequence again, performing cutting while walking, and performing feedback control on the third analog quantity monitoring negative pressure value as an adjustment signal again when the cutting while walking is performed; and finishing the cutting while the negative pressure value is within the negative pressure value interval finished by passing through the window.
Preferably, S1 includes collecting respective analog quantities of the vacuum module, the filter system, and the vacuum chamber, setting a parameter threshold for each analog quantity, and setting different thresholds for different actions of a single analog quantity. And setting parameter threshold values of each analog quantity respectively, and setting different threshold values for the third analog quantity, wherein the threshold values comprise a negative pressure value for starting window-passing action, a negative pressure value interval for finishing window-passing, a negative pressure value for adjusting signals and a negative pressure value for executing signals of action sequences. The vacuum adsorption process can be controlled, monitored and adjusted through the change of the negative pressure value in the vacuum adsorption process, so that the whole process is controlled based on the actual control condition, an initial plan does not need to be made, the initial plan is adjusted for many times according to the actual condition, the vacuum degree of a cutting area is accurately controlled, the cutting area is guaranteed to keep the optimal vacuum degree all the time, the cutting quality and efficiency are guaranteed, and meanwhile, the energy waste is avoided.
Preferably, the step S2 includes starting cutting after the first analog quantity of the vacuum module reaches a parameter threshold value, and monitoring the analog quantity in the system in real time. The parameter threshold of the first analog quantity is a power value of the vacuum module during starting. The analog quantity in the system can be monitored in real time, the system action can be promoted according to the change of the analog quantity, closed-loop real-time adjustment is realized, the best fabric adsorption effect is achieved, the cutting precision is improved, and the loss caused by the cutting fault due to the fact that the fabric is not firmly adsorbed is avoided.
Preferably, S3 includes controlling the negative pressure value as the execution signal and the adjustment signal of the operation signal, respectively, and determining the negative pressure value by different thresholds at different operation stages of the system. And setting a plurality of threshold values for the third analog signal based on the plurality of action signals, and judging the negative pressure value and the threshold value at each stage, thereby realizing the change of the action signals according to the negative pressure value.
The invention has the following advantages:
(1) The vacuum degree of the cutting area is monitored in real time, and closed-loop real-time adjustment is performed, so that the best fabric adsorption effect is achieved, the cutting precision is improved, and the loss caused by cutting faults due to the fact that the fabric is not firmly adsorbed is avoided; (2) By accurately controlling the vacuum degree of the cutting area, the vacuum degree of the cutting area in the fabric conveying process is kept constant, the fabric is ensured to be loaded more constantly in the conveying process, and the conveying precision is ensured; (3) By accurately controlling the vacuum degree of the cutting area, the cutting area is guaranteed to keep the optimal vacuum degree all the time, the cutting quality and efficiency are guaranteed, and meanwhile energy waste is avoided.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic diagram of a vacuum closed loop control system of the present invention.
FIG. 2 is a schematic diagram of the process steps of the present invention.
FIG. 3 is a flow chart of vacuum control of the method of the present invention.
In the figure:
1-an industrial personal computer; 2-a communication module; 3-a vacuum module; 4-a filtration system; 5-vacuum cavity; 6-a frequency converter; 7-a silencing system; 8-differential pressure sensor; 9-a negative pressure sensor; 10-a first analog quantity; 11-a second analog quantity; 12-third analog quantity.
Detailed Description
Embodiments of the present invention are illustrated below by specific examples, and it should be understood that the examples described are only some examples, and not all examples, of the present invention. 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 invention.
In a preferred embodiment, as shown in fig. 1, the present invention discloses a vacuum control system for a cutting-while-walking process, comprising: the industrial personal computer 1 comprises a communication module 2; the communication module 2 is connected with a vacuum module 3, the vacuum module 3 is connected with a frequency converter 6, the frequency converter 6 is connected with the communication module 2, the frequency converter 6 sends a first analog quantity 10 to the communication module, and the vacuum module 3 is connected with a silencing system 7; the frequency converter 6 is used for controlling the output power of the vacuum module 3, the industrial personal computer 1 sends an action signal to the frequency converter through the communication module, the frequency converter controls the starting and stopping and frequency conversion of the vacuum module according to the action signal, and meanwhile, the noise generated when the vacuum module works is eliminated through the silencing system; the muffler includes the vacuum pump muffler, and the vacuum module includes the vacuum pump of being connected with the vacuum pump muffler, and vacuum pump connection has vacuum suction nozzle for the air of extraction cloth top adsorbs cloth and vacuum suction nozzle.
When the vacuum adsorption device is used, the industrial personal computer sends an action signal to the frequency converter through the communication module, and the frequency converter controls the vacuum pump to work for vacuum adsorption.
The vacuum module is connected with a filtering system 4, the filtering system is provided with a differential pressure sensor 8, the differential pressure sensor 8 is connected with the communication module 2, and the differential pressure sensor 8 transmits a second analog quantity 11 to the communication module 2; the pressure difference sensor is used for monitoring the pressure difference change in the filtering system, the pressure difference condition in the vacuum adsorption process is monitored in real time, the adsorption condition is monitored according to the pressure difference change condition in the adsorption process, the condition that the vacuum adsorption is not firm is detected in time, the pressure difference change information is converted into a second analog quantity, the second analog quantity is sent to the industrial personal computer through the communication module, the industrial personal computer monitors the vacuum adsorption process in real time according to the change of the second analog quantity, a threshold value is set for the second analog quantity, the vacuum adsorption is judged to be not met when the second analog quantity exceeds the threshold value, and a change action signal is set and sent.
When the vacuum control system is used, air sucked away by the vacuum pump reaches the vacuum cavity through the filtering system, the pressure difference sensor monitors the pressure difference between the vacuum module and the vacuum cavity in real time, and the pressure difference change information is sent to the industrial personal computer as the second analog quantity communication module.
The filtering system is connected with a vacuum cavity 5, the vacuum cavity 5 is provided with a negative pressure sensor 9, the negative pressure sensor 9 is connected with the communication module 2, and the negative pressure sensor 9 transmits a third analog quantity 12 to the communication module; the pressure change in the vacuum cavity is monitored through the negative pressure sensor, the pressure change information is converted into third analog quantity, the third analog quantity is transmitted to the industrial personal computer through the communication module, the industrial personal computer records the size of the third analog quantity, the change time of the third analog quantity is counted at the same time, comprehensive judgment is carried out according to the change time length of the third analog quantity in a set change interval, and the change time length is used as confidence to carry out reliability control on the action signal.
When the device is used, a corresponding negative pressure value change interval and a negative pressure value change time are set for each action, the industrial personal computer monitors the negative pressure value change in real time according to a negative pressure sensor fixedly arranged in the vacuum cavity, a negative pressure value change time signal is collected after the negative pressure value reaches the action negative pressure value change interval, the negative pressure value is verified to have high reliability after the negative pressure value change time meets a safety range, and then an action signal is sent.
As shown in fig. 2-3, the invention discloses a vacuum control method in a process of cutting while walking, which comprises the following steps:
s1, preparing cutting, and setting a parameter threshold; respectively collecting analog quantities of a vacuum module, a filtering system and a vacuum cavity, setting a parameter threshold value for each analog quantity, and setting different threshold values for different actions of a single analog quantity; and respectively setting parameter threshold values for each analog quantity, and additionally setting different threshold values for the third analog quantity, wherein the threshold values comprise a negative pressure value for starting a window-passing action, a negative pressure value interval for finishing the window-passing action, a negative pressure value of an adjusting signal and a negative pressure value of an executing signal of an action sequence.
S2, starting cutting and monitoring a negative pressure value; cutting is started after the first analog quantity of the vacuum module reaches a parameter threshold value, and real-time monitoring is carried out on the analog quantity in the system; the parameter threshold of the first analog quantity is the power value of the vacuum module during starting.
S3, taking the negative pressure value as an execution signal of an action sequence; the negative pressure value is respectively used as an execution signal and an adjustment signal of the action signal for control, and different threshold values are respectively judged on the negative pressure value at different action stages of the system; and setting a plurality of threshold values for the third analog signal based on the plurality of action signals, and judging the negative pressure value and the threshold value at each stage, thereby realizing the change of the action signals according to the negative pressure value.
And S4, cutting while finishing according to the change of the negative pressure value.
When the system is used, a parameter threshold value is set for each analog quantity, the parameter threshold value is the analog quantity variation range when the system works normally, different working effects and working modes can be switched by setting different parameter threshold values, and the set parameter threshold value is the working mode of the system; opening vacuum after cutting, monitoring the vacuum adsorption condition by collecting analog quantity, sending a feedback action signal if one analog quantity does not reach a parameter threshold value, changing the output power of a vacuum module, starting cutting after the analog quantity reaches the parameter threshold value, simultaneously performing feedback control by using a negative pressure value monitored by a third analog quantity as an adjusting signal after being compared with the threshold value, and judging the vacuum adsorption effect in the cutting process according to the pressure of a vacuum cavity; finishing the cutting of the single-window fabric, and performing knife sharpening; reducing the output of the vacuum system after finishing the cut action signal, and performing feedback control by taking a third analog quantity as an execution signal of an action sequence after comparing the third analog quantity with a threshold value; starting a window after the negative pressure value is lower than the negative pressure value for starting the window-passing action, lifting the output of a vacuum system after the window-passing action is started, comparing the negative pressure value monitored by the third analog quantity with a threshold value, then taking the negative pressure value monitored by the third analog quantity as an execution signal of an action sequence again for feedback control, carrying out cutting while walking, and taking the negative pressure value monitored by the third analog quantity as an adjustment signal again for feedback control after the negative pressure value monitored by the third analog quantity is compared with the threshold value while walking; and finishing the cutting while the negative pressure value is within the negative pressure value interval finished by passing through the window.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A vacuum control system for use in a walk-through cutting process, comprising: the industrial personal computer comprises a communication module; the communication module is connected with a vacuum module, the vacuum module is connected with a filtering system, and the filtering system is connected with a vacuum cavity.
2. The vacuum control system for a go-and-cut process as claimed in claim 1, wherein the vacuum chamber is provided with a negative pressure sensor, the negative pressure sensor is connected to the communication module, and the negative pressure sensor transmits the third analog quantity to the communication module.
3. A vacuum control system as claimed in claim 1 or 2, wherein the filter system is provided with a differential pressure sensor, the differential pressure sensor being connected to the communication module, the differential pressure sensor transmitting the second analog to the communication module.
4. The vacuum control system for a go-and-cut process as claimed in claim 1 or 2, wherein the vacuum module is connected to a transducer, the transducer is connected to the communication module, the transducer transmits the first analog to the communication module, and the vacuum module is connected to a silencer system.
5. A method for controlling vacuum during a cutting process, which is applied to a vacuum control system during a cutting process according to any one of claims 1 to 4, and which comprises the following steps:
s1, preparing cutting, and setting a parameter threshold;
s2, starting cutting and monitoring a negative pressure value;
s3, taking the negative pressure value as an execution signal of an action sequence;
and S4, cutting while finishing according to the change of the negative pressure value.
6. The method according to claim 5, wherein S1 comprises collecting analog quantities of the vacuum module, the filter system and the vacuum chamber, respectively, setting a parameter threshold for each analog quantity, and setting different thresholds for different actions of a single analog quantity.
7. The method of claim 5, wherein the step S2 comprises starting cutting after the first analog quantity of the vacuum module reaches a parameter threshold value, and monitoring the analog quantity in the system in real time.
8. The method according to claim 6, wherein S3 comprises controlling the negative pressure value as an execution signal and an adjustment signal of the operation signal, and determining the negative pressure value with different thresholds at different operation stages of the system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210999820.0A CN115467152A (en) | 2022-08-19 | 2022-08-19 | Vacuum control system and method in process of cutting while walking |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210999820.0A CN115467152A (en) | 2022-08-19 | 2022-08-19 | Vacuum control system and method in process of cutting while walking |
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| CN115467152A true CN115467152A (en) | 2022-12-13 |
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Citations (6)
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| CN102808313A (en) * | 2011-05-30 | 2012-12-05 | 上海和鹰机电科技股份有限公司 | Negative pressure keeping system for cutting machine |
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| CN206950386U (en) * | 2017-01-23 | 2018-02-02 | 广东昊翔电气设备工程有限公司 | A kind of vacuum control system |
| CN110524602A (en) * | 2018-05-23 | 2019-12-03 | 拓卡奔马机电科技有限公司 | Vacuum systems stabilisation and its antihunt means and device applied to cutting |
-
2022
- 2022-08-19 CN CN202210999820.0A patent/CN115467152A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808313A (en) * | 2011-05-30 | 2012-12-05 | 上海和鹰机电科技股份有限公司 | Negative pressure keeping system for cutting machine |
| CN105883465A (en) * | 2014-05-09 | 2016-08-24 | 拓卡奔马机电科技有限公司 | Cutting bed automatic conveying method |
| CN104499263A (en) * | 2014-12-15 | 2015-04-08 | 拓卡奔马机电科技有限公司 | Vacuum automatic adjusting device of cutting bed |
| CN106827011A (en) * | 2016-12-22 | 2017-06-13 | 拓卡奔马机电科技有限公司 | Negative pressure of vacuum regulation electric-control system and the negative pressure of vacuum adjusting method of cutting |
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