Zipper cloth pasting welding real-time detection method and device

Abstract

The invention provides a real-time detection method and device for zipper cloth pasting welding, and the method comprises the steps: S1, carrying out real-time detection through a detection device electrically connected to a zipper cloth pasting machine, and introducing the welding time and a qualified interval into the detection device; s2, the detection device calculates delay sampling time according to a preset delay ratio; s3, when single welding is carried out, the detection device collects the detection voltage of the zipper cloth sticking machine from the delay sampling time to the welding time, and the detection voltage and the current of the zipper cloth sticking machine from the delay sampling time to the welding time have a linear proportional relation; and S4, the detection device obtains the maximum current value according to the detection voltage, the maximum current value is compared with the qualified interval, and the welding quality is judged. The method has the advantages of real-time detection, fast data processing and accurate detection.

Description

Technical Field

[0001] The invention relates to the technical field of zipper patch welding, and in particular to a zipper patch welding real-time detection method and device. Background Art

[0002] Zippers usually include components such as fabric tape, chain teeth, upper and lower stops, latches, sockets, patches, and sliders. Among them, the patches are the basis for installing the square latch workpiece. In the production of zippers, a thin film of patch adhesive is placed on the fabric tape using a zipper patch machine. The zipper patch machine presses and performs ultrasonic welding for a period of time, and finally waits for cooling and solidification before the next round of ultrasonic welding can be performed. Since the fabric tape and patch adhesive film are relatively thin, and the patch adhesive film generally has good thermal conductivity and melting properties, the welding time is usually completed within a few milliseconds to a few seconds.

[0003] During the continuous welding process of the zipper patching machine, due to slight changes in the thickness or density of the tape, or other unstable factors such as changes in air pressure, the patching effect of some finished products is poor and exceeds the qualified range, thus producing zippers with poor patching. For example, if the air pressure becomes low or the material (the total thickness of the zipper and the patch adhesive) becomes thinner, it is easy for the patch to be not strong enough. The pins of the clothes made with this zipper are easy to fall off during the washing process, and the patch is easy to separate from the layers; if the air pressure becomes high or the material becomes thicker, the patch effect will become brittle, and the clothes will be easily torn during use, causing the entire piece of clothing to be scrapped.

[0004] At present, it is difficult to detect the quality of the patching effect during the continuous welding process. Destructive testing of the finished zippers is required to find problems. Zipper manufacturers generally use regular sampling and destructive testing to confirm zippers with poor patching. This method is not only time-consuming and labor-intensive, but also difficult to prevent zippers with poor patching from entering the market, which has long plagued zipper manufacturers. Summary of the invention

[0005] In order to improve the problem that the existing patch effect detection method is time-consuming and labor-intensive and it is difficult to prevent zippers with poor patch from entering the market, the present invention provides a detection method and device that can detect the welding effect of zipper patches in real time.

[0006] The first object of the present invention is to provide a real-time detection method for zipper patch welding, which adopts the following technical solution: A real-time detection method for zipper patch welding comprises the following steps: S1. Performing real-time detection using a detection device electrically connected to a zipper applicator, and importing welding time and qualified interval into the detection device; S2, the detection device calculates the delay sampling time according to the preset delay ratio; S3, when performing a single welding, the detection device collects the detection voltage of the zipper sticking machine from the delayed sampling time to the welding time, and the detection voltage and the current of the zipper sticking machine from the delayed sampling time to the welding time have a linear proportional relationship; S4. The detection device obtains a maximum current value according to the detection voltage, and compares the maximum current value with the qualified interval to judge the welding quality.

[0007] By adopting the above technical solution, during detection, the corresponding welding time and qualified interval of the welding material are introduced into the detection device, so that the detection device can perform calculations and real-time detection according to the current specifications of the cloth tape and the patch film, and the corresponding delay sampling time can be quickly obtained according to the delay ratio.

[0008] The detection voltage can well reflect the current situation of the zipper applicator from the delayed sampling time to the welding time, thereby ensuring accuracy. By starting sampling from the delayed sampling time, it is helpful to ensure that the maximum current can be detected and reduce the amount of detection voltage data. At the same time, the detection voltage is helpful to ensure the stability of the detection voltage during data transmission, thereby ensuring the accuracy of subsequent calculations and avoiding data processing caused by the influence of electromagnetic interference and noise, thereby effectively reducing data processing time.

[0009] Reducing data processing time enables the detection equipment to obtain the maximum current value at a very fast speed and compare it with the qualified range, and make timely judgments within the cooling and curing time, which is conducive to quickly making accurate feedback when the cooling and curing time is short and does not affect work efficiency.

[0010] Preferably, the delay ratio is between 0.15 and 0.3.

[0011] By adopting the above technical solution, since the current of the zipper applicator is basically in a gradually increasing stage when the delay ratio is between 0.15 and 0.3, the delay ratio is between 0.15 and 0.3, which can effectively reduce the subsequent measurement range, reduce data processing, and make the maximum current within the measurement range.

[0012] Preferably, the detection voltage is between 0-10V.

[0013] By adopting the above technical solution, the 0-10V voltage signal is a standard signal widely used in industrial control systems. Therefore, the interoperability between the 0-10V detection voltage and the programmable controller is stronger, thereby simplifying data processing. Most programmable controllers on the market are designed to accept voltage input and use detection voltage for transmission, which is conducive to reducing additional adapters or conversion circuits.

[0014] Preferably, S4 includes: The detection device samples the detection voltage according to a preset sampling rate to obtain sampling data; The detection device extracts the maximum voltage value in the sampled data and calculates the corresponding maximum current value; It is determined whether the maximum current value is within a qualified range.

[0015] By adopting the above technical solution, the maximum current determines the heat generated during the welding process. Therefore, the maximum current of the zipper applicator can well reflect whether the heat generated by welding is appropriate, that is, by judging the maximum current, it can be confirmed whether the welding quality meets the standard. By judging whether the maximum current is in the qualified range, the judgment method is not only effective, but also simple and fast.

[0016] Preferably, the sampling rate is 100 times / second.

[0017] By adopting the above technical solution, a sampling rate of 100 times / second can effectively restore the detection voltage data.

[0018] Preferably, the determining whether the maximum current value is within a qualified range includes: If the maximum current value is within the qualified range, return to step S3 to perform the next round of detection; If the maximum current value is not within the qualified range, the detection device controls the zipper applicator to stop working, and the detection device issues an alarm.

[0019] By adopting the above technical solution, when the welding quality is normal, the continuous welding work of the zipper patch machine will not be affected; when the welding quality is unqualified, the problematic parts can be directly and quickly found and removed.

[0020] The second object of the present invention is to provide a detection device, which adopts the following technical solution: A detection device, comprising: A control processing module, the control processing module is electrically connected to the zipper patch machine, and the control processing module is used to determine whether the welding is qualified and control the start and stop of the zipper patch machine; A collection module, the collection module is connected to the zipper patch machine and the control processing module, and the collection module is used to collect the detection voltage of the zipper patch machine from the delayed sampling time to the welding time; An alarm module is electrically connected to the control processing module and is used to issue an alarm.

[0021] By adopting the above technical solution, when in use, the welding time and the qualified interval are imported into the control processing module to provide the control processing module with a judgment standard. When welding, the detection voltage of the zipper patch machine from the delayed sampling time to the welding time is collected by the acquisition module, and the control processing module extracts the maximum voltage in the detection voltage, and converts the maximum voltage into the maximum current. By comparing the maximum current with the qualified interval, it is determined whether the welding is qualified. If the welding is unqualified, the control processing module controls the zipper patch machine to stop working, and controls the alarm module to sound an alarm, thereby realizing real-time detection and timely discovering problem parts.

[0022] Preferably, the acquisition module includes a current-voltage transmitter electrically connected to the zipper applicator, and the current-voltage transmitter is electrically connected to the control processing module.

[0023] By adopting the above technical solution, the current-voltage transmitter has the characteristics of good linearity, high stability, strong anti-interference ability, and is not easily affected by wire resistance, which is conducive to ensuring data accuracy.

[0024] Preferably, the control processing module includes a host computer, a programmable controller, and an analog-to-digital converter. The host computer is connected to the programmable controller via a network or serial communication. The programmable controller is electrically connected to the zipper applicator, the analog-to-digital converter, and the alarm module. The analog-to-digital converter is electrically connected to the current-voltage transmitter.

[0025] By adopting the above technical solution, when performing a single welding, the sampling rate of the analog-to-digital converter is controlled by the programmable controller, and the analog-to-digital converter samples the detection voltage collected by the acquisition module to obtain sampling data. The programmable controller extracts the maximum voltage according to the sampling data, calculates the corresponding maximum current through the maximum voltage, and determines whether the maximum current is in the qualified range, thereby determining whether the welding is qualified. If the maximum current is in the qualified range, it means that the welding quality is qualified. If the maximum current is not in the qualified range, it means that the welding quality is unqualified. The programmable controller controls the zipper applicator to stop working, and controls the alarm module to issue an alarm reminder, so that the problem parts can be quickly found.

[0026] Preferably, the alarm module comprises an alarm, and the alarm is electrically connected to the programmable controller.

[0027] By adopting the above technical solution, if the maximum current is not within the qualified range, the programmable controller controls the alarm to sound an alarm, which is conducive to enabling the staff to find the problem in time.

[0028] Compared with the prior art, the present invention has the following technical effects: 1. The current-voltage transmitter has the characteristics of good linearity, high stability, strong anti-interference ability, and is not easily affected by wire resistance, which is conducive to ensuring data accuracy; 2. Based on the welding material, the corresponding welding time and qualified interval are introduced into the detection device, so that the detection device can calculate and detect in real time according to the current specifications of the cloth tape and the patch film, and can quickly obtain the corresponding delay sampling time according to the delay ratio; 3. The detection voltage can well reflect the current situation of the zipper applicator from the delayed sampling time to the welding time, thereby ensuring accuracy. By starting sampling from the delayed sampling time, it is helpful to ensure that the maximum current can be detected and reduce the amount of detection voltage data. At the same time, the detection voltage is helpful to ensure the stability of the detection voltage during data transmission, thereby ensuring the accuracy of subsequent calculations and avoiding data processing work caused by electromagnetic interference and noise, thereby effectively reducing data processing time, so that the detection equipment can obtain the maximum current at an extremely fast speed and compare it with the qualified interval, and make timely judgments when the cooling and curing time is short, which is conducive to quickly making accurate feedback when the cooling and curing time is short and does not affect work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0030] Figure 1 It is a schematic diagram of the overall process of the first embodiment of the present invention.

[0031] Figure 2 It is a flowchart of step S4 in the first embodiment of the present invention.

[0032] Figure 3 It is a flowchart of step S34 in the first embodiment of the present invention.

[0033] Figure 4 It is a schematic diagram of the control processing module, the collection module, and the alarm module of the second embodiment of the present invention.

[0034] Figure 5 It is a schematic diagram of the overall relationship of the second embodiment of the present invention.

[0035] Among them, the component numbers are as follows: 1. Control processing module; 11. Host computer; 12. Programmable controller; 13. Analog-to-digital converter; 2. Acquisition module; 21. Current-voltage transmitter; 3. Alarm module; 31. Alarm. DETAILED DESCRIPTION

[0036] The following will be combined with the attached embodiment of the present invention Figures 1 to 5 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0037] A real-time detection method for zipper patch welding, referring to Figure 1 , including the following steps: S1. Use a detection device electrically connected to the zipper applicator to perform real-time detection, and import the welding time and qualified interval into the detection device.

[0038] During the welding process, the current of the zipper patch machine will gradually increase, and when it reaches a maximum value, it will gradually decrease until the welding is completed. Among them, the maximum current determines the heat generated during the welding process. Therefore, the maximum current of the zipper patch machine can well reflect whether the heat generated by welding is appropriate, that is, by judging the maximum current, it can be confirmed whether the welding quality meets the standard. The thicker the material or the higher the material density, the more time is required for the material to reach the temperature and energy state required for welding, and the longer it takes for the zipper patch machine to reach the maximum current. Conversely, the thinner the material or the smaller the material density, the faster it will take for the zipper patch machine to reach the maximum current.

[0039] In this embodiment, the materials include cloth tapes and patch films. The patch process can be completed by welding the patch films to both sides of the cloth tapes. When cloth tapes or patch films of different specifications are replaced, the required welding time is different. The staff determines the corresponding welding time and qualified range based on the current material, thereby ensuring the welding quality under different materials.

[0040] By importing the welding time and qualified interval into the detection device, the detection device can perform calculation and real-time detection according to the current specifications of the cloth tape and the adhesive film. Specifically, the welding time required for the current specifications of the cloth tape and the adhesive film is 0.18s, and the qualified interval is defined between 1.5A and 2.6A.

[0041] S2, the detection device calculates the delay sampling time according to the preset delay ratio; The detection device multiplies the welding time by the delay ratio to obtain the delayed sampling time. Thus, the corresponding delayed sampling time can be quickly obtained through the welding time, thereby improving intelligence.

[0042] According to experimental data, when the delay ratio is between 0.15 and 0.3, the current of the zipper patch machine is basically in a gradually increasing stage. Therefore, the delay ratio is between 0.15 and 0.3, which can effectively reduce the subsequent measurement range, reduce data processing, and make the maximum current within the measurement range. In this embodiment, due to the fast welding speed, the units of welding time and delay sampling time are both seconds (s), and the accuracy is two decimal places. If the result of multiplying the welding time by the delay ratio exceeds two decimal places, the result is rounded down to two decimal places. Specifically, the delay ratio is preferably 0.28, that is, by multiplying 0.18 by 0.28 and rounding down to two decimal places, the delay sampling time is 0.05s.

[0043] S3. When performing a single welding, the detection device collects the detection voltage of the zipper attaching machine from the delayed sampling time to the welding time, and there is a linear proportional relationship between the detection voltage and the current of the zipper attaching machine from the delayed sampling time to the welding time.

[0044] By detecting that there is a linear proportional relationship between the voltage and the current of the zipper attaching machine from the delayed sampling time to the welding time, the detection voltage can well reflect the current situation of the zipper attaching machine from the delayed sampling time to the welding time. By starting sampling from the delayed sampling time, it is helpful to ensure that the maximum current can be detected and reduce the amount of data for the detection voltage.

[0045] In addition, since the current signal is easily affected by electromagnetic interference and noise during the transmission process, while the voltage signal is relatively stable during the transmission process and is not easily affected by external interference, the voltage signal has a small loss when transmitted over long distances. The detection device collects the detection voltage of the zipper applicator from the delayed sampling time to the welding time, which is conducive to ensuring the stability of the detection voltage during the data transmission process, thereby ensuring the accuracy of subsequent calculations, and avoiding data processing work caused by the influence of electromagnetic interference and noise, thereby reducing data processing time.

[0046] Specifically, the detection device collects the detection voltage of the zipper patch machine from 0.05s to 0.18s. There is a linear proportional relationship between the detection voltage and the current of the zipper patch machine from 0.05s to 0.18s. Therefore, by transmitting the detection voltage data, it is helpful to prevent the data from being affected by electromagnetic interference and noise, thereby reducing data processing time.

[0047] In this embodiment, the detection voltage collected by the detection device is in the range of 0-10V. The 0-10V voltage signal is a standard signal widely used in industrial control systems. Therefore, the 0-10V detection voltage has stronger interoperability with the programmable controller, thereby simplifying data processing. Most programmable controllers on the market are designed to accept voltage inputs, so after using a current-voltage transmitter, they can be directly connected, simplifying the interface design and reducing additional adapters or conversion circuits.

[0048] S4. The detection device obtains the maximum current value according to the detection voltage, compares the maximum current value with the qualified range, and judges the welding quality.

[0049] Reference Figure 2 , step S4 comprises: S41. The detection device samples the detection voltage according to a preset sampling rate to obtain sampling data.

[0050] In this step, the detection voltage collected by the detection device needs to be converted into a digital signal readable by the detection device and used as sampling data to facilitate subsequent data processing by the detection device.

[0051] In this embodiment, the storage address range is from 0 to 255, that is, due to the range limitation of the storage address, a maximum of 256 data points can be stored. Therefore, the sampled data is saved in the specified addresses 0 to 255. Based on the fact that the detection voltage is sampled from the delayed sampling time, the time interval between the delayed sampling time and the maximum current value is short. Therefore, combined with an appropriate delay ratio, it can effectively ensure that the maximum voltage in the detection voltage is stored in a limited address.

[0052] Specifically, the sampling rate is 100 times / second. The detection device samples the detection voltage at the sampling rate of 100 times / second and stores it in the specified addresses 0 to 255, so that the detection device obtains the sampled data. The sampling rate of 100 times / second can effectively restore the detection voltage data and ensure the accuracy of subsequent calculations.

[0053] S42. The detection device extracts the maximum voltage in the sampled data and calculates the corresponding maximum current.

[0054] Based on the linear proportional relationship between the detection voltage and the current of the zipper attaching machine from the delayed sampling time to the welding time, the corresponding sampling data and the current of the zipper attaching machine from the delayed sampling time to the welding time also have a linear proportional relationship. Therefore, through the linear proportional relationship between the sampling data and the current of the zipper attaching machine from the delayed sampling time to the welding time, the maximum voltage in the sampling data is converted into the corresponding current value, that is, the maximum current value, thereby obtaining the maximum current of the zipper attaching machine.

[0055] In this step, the detection device traverses the sampled data through the maximum value extraction instruction, thereby extracting the maximum voltage in the sampled data. Based on the linear proportional relationship between the detection voltage and the current of the zipper applicator from the delayed sampling time to the welding time, the maximum voltage is converted into a corresponding current value, thereby obtaining the maximum current.

[0056] S43: Determine whether the maximum current value is within a qualified range.

[0057] In this embodiment, the cooling and solidification time after a single welding is completed is 0.10s (seconds). The amount of data of the detection voltage is reduced by delaying the sampling time, and the data is transmitted stably through the detection voltage, which greatly reduces the data processing time. The detection equipment can obtain the maximum current at a very fast speed and compare it with the qualified interval, and make a judgment in time within the cooling and solidification time, which is conducive to rapid feedback when the cooling and solidification time is short and does not affect work efficiency.

[0058] Specifically, refer to Figure 3 , step S43 comprises: S431: If the maximum current value is within the qualified range, return to step S3 to perform the next round of detection.

[0059] If the maximum current is in the qualified range, it means that the heat generated during the welding process meets the welding requirements, that is, the welding quality is qualified. At this time, the zipper patch machine operates normally and carries out the next round of welding work. At the same time, the detection device returns to step S3 to detect the next round of welding work of the zipper patch machine, thereby ensuring the production efficiency of the zipper patch machine and realizing real-time detection.

[0060] S432. If the maximum current value is not within the qualified range, the detection device controls the zipper applicator to stop working, and the detection device issues an alarm.

[0061] When the maximum current is less than the qualified range, it means that the heat generated during the welding process is too little, which may make the patch not strong enough. The pins of the clothes made with the zipper may fall off and the patch may peel off during washing. When the maximum current is greater than the qualified range, it means that the heat generated during the welding process is too much, which may cause the patch to become brittle and the clothes may tear easily during use, thus making the whole piece of clothing scrapped.

[0062] Therefore, if the maximum current value is not within the qualified range and the finished welding product is defective, the detection device will control the zipper applicator to stop working, and the detection device will issue an alarm to quickly find the defective parts.

[0063] The implementation principle of this embodiment is: during detection, the corresponding welding time and qualified interval are introduced into the detection device through the welding material, so that the detection device can perform calculation and real-time detection according to the current specifications of the cloth tape and the patch film, and quickly obtain the corresponding delay sampling time through the delay ratio.

[0064] The detection voltage can well reflect the current situation of the zipper applicator from the delayed sampling time to the welding time, thereby ensuring accuracy. By starting sampling from the delayed sampling time, it is helpful to ensure that the maximum current can be detected and reduce the amount of detection voltage data. At the same time, the detection voltage is helpful to ensure the stability of the detection voltage during data transmission, thereby ensuring the accuracy of subsequent calculations and avoiding data processing caused by the influence of electromagnetic interference and noise, thereby effectively reducing data processing time.

[0065] Reducing data processing time enables the detection equipment to obtain the maximum current value at a very fast speed and compare it with the qualified range, and make timely judgments within the cooling and curing time, which is conducive to quickly making accurate feedback when the cooling and curing time is short and does not affect work efficiency.

[0066] Embodiment 2: Based on the real-time detection method for zipper patch welding in Embodiment 1, a detection device is provided in conjunction therewith.

[0067] A detection device, referring to Figure 4 , including a control processing module 1, a collection module 2 and an alarm module 3. Among them, the control processing module 1 is used to determine whether the welding is qualified and control the start and stop of the zipper patch machine, the collection module 2 is used to collect the detection voltage of the zipper patch machine from the delayed sampling time to the welding time, and the alarm module 3 is used to issue an alarm reminder.

[0068] Specifically, refer to Figure 5 The control processing module 1 includes a host computer 11, a programmable controller 12 (PLC), and an analog-to-digital converter 13. The host computer 11 is preset with a delay ratio, and the host computer 11 is connected to the programmable controller 12 through a network or serial communication. By importing the welding time and the qualified interval into the host computer 11, the host computer 11 calculates according to the delay ratio to obtain the delayed sampling time, and transmits the delayed sampling time and the qualified interval to the programmable controller 12 through the host computer 11. In addition, the delayed sampling time can also be customized by the host computer 11.

[0069] The programmable controller 12 has a preset sampling rate, and is electrically connected to the analog-to-digital converter 13, the zipper applicator, and the alarm module 3. The analog-to-digital converter 13 is electrically connected to the acquisition module 2, and is used to sample the detection voltage collected by the acquisition module 2.

[0070] When performing a single welding, the sampling rate of the analog-to-digital converter 13 is controlled by the programmable controller 12. The analog-to-digital converter 13 samples the detection voltage collected by the acquisition module 2 to obtain sampling data. The programmable controller 12 extracts the maximum voltage according to the sampling data, calculates the corresponding maximum current through the maximum voltage, and determines whether the maximum current is in a qualified interval. If the maximum current is in the qualified interval, it means that the welding quality is qualified. If the maximum current is not in the qualified interval, it means that the welding quality is unqualified. The programmable controller 12 controls the zipper applicator to stop working, and controls the alarm module 3 to issue an alarm reminder.

[0071] Specifically, refer to Figure 5 The acquisition module 2 includes a current-voltage transmitter 21, which is electrically connected to the zipper sticking machine, and the analog-to-digital converter 13 is electrically connected to the current-voltage transmitter 21. The current-voltage transmitter 21 is used to convert the current signal into a standard voltage signal, that is, the current-voltage transmitter 21 converts the current signal of the zipper sticking machine into a detection voltage, and the detection voltage has a linear proportional relationship with the current signal of the zipper sticking machine.

[0072] The current-voltage transmitter 21 has the characteristics of good linearity, high stability, strong anti-interference ability, and is not easily affected by wire resistance, which is conducive to ensuring data accuracy. In addition, voltage signals are less susceptible to interference than current signals during long-distance transmission. Therefore, by transmitting the detection voltage, the risk of signal distortion and interference is reduced.

[0073] In this embodiment, the current-voltage transmitter 21 converts the current signal of the zipper applicator into a detection voltage of 0-10V. The 0-10V voltage signal is a standard signal widely used in industrial control systems. Therefore, the 0-10V detection voltage has stronger interoperability with the programmable controller 12, thereby simplifying data processing. Most programmable controllers 12 on the market are designed to accept voltage inputs, so the use of the current-voltage transmitter 21 is conducive to simplifying the interface design and reducing additional adapters or conversion circuits. Therefore, the use of the current-voltage transmitter 21 makes the circuit simple and easy to install, reduces the use of anti-interference equipment, reduces the detection cost, and is conducive to increasing the speed of subsequent data processing.

[0074] During welding, the detection voltage of the zipper taping machine from the delayed sampling time to the welding time is collected through the current-voltage transmitter 21. There is a linear proportional relationship between the detection voltage and the current of the zipper taping machine from the delayed sampling time to the welding time. The analog-to-digital converter 13 samples the detection voltage collected by the collection module 2 to obtain sampling data. The programmable controller 12 extracts the maximum voltage according to the sampling data, calculates the corresponding maximum current through the maximum voltage, and determines whether the maximum current is in the qualified interval. If the maximum current is not in the qualified interval, the programmable controller 12 controls the zipper taping machine to stop working, and controls the alarm module 3 to issue an alarm reminder.

[0075] Continue to refer to Figure 5 The alarm module 3 includes an alarm 31, which is electrically connected to the programmable controller 12. If the maximum current is not within the qualified range, the programmable controller 12 controls the alarm 31 to issue an alarm reminder, which is conducive to enabling the staff to find the problem in time.

[0076] In addition, the host computer 11, the programmable controller 12 (PLC), the analog-to-digital converter 13, the current-voltage transmitter 21 and the alarm 31 are all very mature technologies in the prior art and will not be described in detail.

[0077] The implementation principle of this embodiment is: by importing the welding time and the qualified interval into the upper computer 11, the upper computer 11 calculates according to the delay ratio to obtain the delayed sampling time, and transmits the delayed sampling time and the qualified interval to the programmable controller 12 through the upper computer 11.

[0078] When performing a single welding, the sampling rate of the analog-to-digital converter 13 is controlled by the programmable controller 12, and the detection voltage of the zipper patch machine from the delayed sampling time to the welding time is collected by the current-voltage transmitter 21. The analog-to-digital converter 13 samples the detection voltage to obtain sampling data. The programmable controller 12 extracts the maximum voltage according to the sampling data, calculates the corresponding maximum current through the maximum voltage, and determines whether the maximum current is in the qualified range. If the maximum current is in the qualified range, it means that the welding quality is qualified, and the next round of welding detection is carried out; if the maximum current is not in the qualified range, it means that the welding quality is unqualified, then the programmable controller 12 controls the zipper patch machine to stop working, and controls the alarm 31 to sound an alarm reminder.

[0079] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A real-time detection method for zipper patch welding, comprising the following steps: S1. Performing real-time detection using a detection device electrically connected to a zipper applicator, and importing welding time and qualified interval into the detection device; S2, the detection device calculates the delay sampling time according to the preset delay ratio; S3, when performing a single welding, the detection device collects the detection voltage of the zipper sticking machine from the delayed sampling time to the welding time, and the detection voltage and the current of the zipper sticking machine from the delayed sampling time to the welding time have a linear proportional relationship; S4. The detection device obtains a maximum current value according to the detection voltage, and compares the maximum current value with the qualified interval to judge the welding quality.

2. A zipper patch welding real-time detection method according to claim 1, characterized in that; The delay ratio is between 0.15 and 0.

3.

3. A real-time detection method for zipper patch welding according to claim 1, characterized in that; The detection voltage is between 0 and 10V.

4. A real-time detection method for zipper patch welding according to claim 1, characterized in that: The S4 includes: The detection device samples the detection voltage according to a preset sampling rate to obtain sampling data; The detection device extracts the maximum voltage value in the sampled data and calculates the corresponding maximum current value; It is determined whether the maximum current value is within a qualified range.

5. A real-time detection method for zipper patch welding according to claim 4, characterized in that: The sampling rate is 100 times / second.

6. A real-time detection method for zipper patch welding according to claim 4, characterized in that: The determining whether the maximum current value is within a qualified range includes: If the maximum current value is within the qualified range, return to step S3 to perform the next round of detection; If the maximum current value is not within the qualified range, the detection device controls the zipper applicator to stop working, and the detection device issues an alarm.

7. A detection device, used in conjunction with the detection method according to any one of claims 1 to 6, characterized in that: include: A control processing module (1), the control processing module (1) is electrically connected to the zipper attaching machine, and the control processing module (1) is used to determine whether the welding is qualified and to control the start and stop of the zipper attaching machine; A collection module (2), the collection module (2) being electrically connected to the zipper attaching machine and the control processing module (1), the collection module (2) being used to collect the detection voltage of the zipper attaching machine from the delayed sampling time to the welding time; An alarm module (3), the alarm module (3) is electrically connected to the control processing module (1), and the alarm module (3) is used to issue an alarm.

8. A detection device according to claim 7, characterized in that: The acquisition module (2) comprises a current-voltage transmitter (21) electrically connected to the zipper applicator, and the current-voltage transmitter (21) is electrically connected to the control processing module (1).

9. A detection device according to claim 8, characterized in that: The control processing module (1) comprises a host computer (11), a programmable controller (12), and an analog-to-digital converter (13); the host computer (11) is connected to the programmable controller (12) via a network or serial communication; the programmable controller (12) is electrically connected to a zipper applicator, the analog-to-digital converter (13), and an alarm module (3); and the analog-to-digital converter (13) is electrically connected to a current-voltage transmitter (21).

10. A detection device according to claim 9, characterized in that: The alarm module (3) comprises an alarm (31), and the alarm (31) is electrically connected to the programmable controller (12).

Images