A wet wipe production control system

Abstract

This application relates to a wet wipes production control system, belonging to the technical field of wet wipes production. It includes a data acquisition module, a comparison module, a transfer module, and a negative pressure chamber. The negative pressure chamber is used to contain packaged wet wipes. The data acquisition module is located inside the negative pressure chamber and is used to acquire images of the wet wipes inside. The data acquisition module sends the acquired images to the comparison module, which compares the received images with a standard image. If the image does not match the standard image, a non-compliance signal is sent to the transfer module. Upon receiving the non-compliance signal, the transfer module discards the products inside the negative pressure chamber. This application has the advantage of a low probability of missed detection.

Description

Technical Field

[0001] This application relates to the technical field of wet wipe production, and in particular to a wet wipe production control system. Background Technology

[0002] Wet wipes are moistened tissues used to wipe the skin. Wet wipes on the market can be broadly divided into two categories: one type is sterilized itself but cannot disinfect other items; it contains skin-care ingredients and is only for moisturizing the skin. The other type is disinfecting wipes, which are not only sterilized themselves but also disinfect other items; they can be used to disinfect or sterilize skin abrasions, scratches, etc.

[0003] After production, existing wet wipes need to undergo an airtightness check to reduce the possibility of air leakage. Currently, the production process mainly uses manual inspection, but manual inspection has a probability of missing some items. Summary of the Invention

[0004] To address the shortcomings of existing technologies, one of the objectives of this application is to provide a wet wipe production control system with the advantage of low detection failure rate.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A wet wipes production control system includes a data acquisition module, a comparison module, a transfer module, and a negative pressure chamber. The negative pressure chamber is used to contain packaged wet wipes. The data acquisition module is located inside the negative pressure chamber and is used to acquire images of the wet wipes inside the negative pressure chamber. The data acquisition module sends the acquired images to the comparison module, which compares the received images with standard images. If the images do not match the standard images, a non-compliance signal is sent to the transfer module. Upon receiving the non-compliance signal, the transfer module discards the products inside the negative pressure chamber.

[0007] By adopting the above technical solution, when the wet wipes are placed in a negative pressure box, the intact wet wipe bags will expand under the action of negative pressure, while the bags with air leakage defects will be compressed under the action of negative pressure. The acquisition module acquires images of the bags and compares them with the comparison module, thus effectively distinguishing defective bags. The defective products are then discarded by the transfer module, thus effectively reducing the false negative rate.

[0008] In a preferred embodiment, this application may be further configured to include a main control module, an alarm module, a counting module, and a difference module. After receiving an unqualified signal, the transfer module sends a counting signal back to the counting module. After receiving the counting signal, the counting module counts. The difference module periodically reads the count in the counting module and calculates the difference between two readings. When the difference is greater than a preset value, it sends an alarm signal to the alarm module. After receiving the alarm signal, the alarm module sounds an alarm.

[0009] By adopting the above technical solution, during use, the difference module will periodically read the count in the counting module and calculate the difference between two readings. When the difference is greater than the preset value, it indicates that the number of defective products exceeds the standard within a unit time. Therefore, an alarm signal is sent to the alarm module to facilitate the operator to check the equipment.

[0010] In a preferred embodiment, this application may be further configured as follows: it also includes a handheld terminal carried by an operator, the alarm module is located within the handheld terminal, and the handheld terminal also includes a reporting module and a timing module. After receiving an alarm signal, the alarm module sends a timing signal to the timing module. After receiving the timing signal, the timing module performs a countdown of duration T. The reporting module includes a submission unit. If the submission unit is not operated after the countdown T ends, the reporting module sends a timeout signal to the main control module.

[0011] By adopting the above technical solution, when the user of the handheld terminal receives an alarm signal, he / she will inspect the equipment and defective products and submit a report through the submission unit within a specified time. If the user fails to operate the operation unit within the specified time, the operator is considered to have been absent from his / her post.

[0012] In a preferred embodiment, this application can be further configured such that: the handheld terminal further includes an input module, the input module being used to record the current operator information and send the current operator information to the reporting module, the timeout signal sent by the reporting module including the current operator information.

[0013] By adopting the above technical solution, different personnel correspond to different personal information during use, thus effectively identifying the current operator.

[0014] In a preferred embodiment, this application can be further configured as follows: the main control module includes a query unit and a database, the database contains a personnel information table, the query unit is used to receive a timeout signal, query the corresponding personnel in the database according to the current operator information in the timeout signal, and record the timeout.

[0015] By adopting the above technical solution, when a supermarket signal is present during use, it indicates that the employee may be absent from their post, thus requiring manual verification, which facilitates employee management.

[0016] In a preferred embodiment, this application can be further configured as follows: the reporting module also includes a fault unit and an error unit. When the damage points of multiple wet wipes are relatively consistent, the operator operates the fault unit and the submission unit. After the fault unit is operated, it sends a fault signal to the main control module and the timing module. After the submission unit is operated, it sends a cancellation signal to the timing module. When the timing module receives the fault signal and the cancellation signal, the cancellation time is a countdown of T. When the damage points of multiple wet wipes are significantly different, the operator operates the error unit and the submission unit. After the error unit is operated, it sends an error signal to the main control module. After the submission unit is operated, it sends a cancellation signal to the timing module. When the timing module receives the error signal and the cancellation signal, the cancellation time is a countdown of T.

[0017] By adopting the above technical solution, within time T, after the operator reports the inspection results, the countdown T is canceled.

[0018] In a preferred embodiment, this application can be further configured such that: the handheld terminal also includes an accumulation module; after receiving an alarm signal, the alarm module sends an accumulation signal to the accumulation module; after receiving the accumulation signal, the accumulation module increments the accumulated value by one; when the accumulated value exceeds a preset value, the accumulation module sends a maintenance signal to the main control module and prompts the operator carrying the handheld terminal.

[0019] By adopting the above technical solution, after receiving multiple alarm signals, it indicates that a large number of defective products have appeared, requiring operators to inspect and repair the equipment. The cumulative module issues a prompt so that operators are aware of the fault and can carry out repairs.

[0020] In a preferred embodiment, this application may be further configured to include a pressure module for detecting the air pressure inside the negative pressure box. The difference module includes a temporary storage unit and a judgment unit. The temporary storage unit stores the difference calculation results for each production cycle, and the judgment unit reads the data from the temporary storage unit during the production cycle. If all the data are zero, the pressure value of the pressure module is queried. If the pressure value is greater than the standard value, a pressure relief signal is sent to the main control module.

[0021] By adopting the above technical solution, if no defective products are found for a long time during use, it indicates that the negative pressure box may be faulty. The pressure module detects and compares the pressure inside the negative pressure box. If the pressure value is greater than the standard value, a pressure relief signal is sent to the main control module, which facilitates the operator to inspect and repair the negative pressure box. Attached Figure Description

[0022] Figure 1 This is a schematic diagram illustrating the principle of this application.

[0023] Attached reference numerals: 1. Acquisition module; 2. Comparison module; 3. Transfer module; 4. Counting module; 5. Difference module; 51. Temporary storage unit; 52. Judgment unit; 6. Pressure module; 7. Handheld terminal; 71. Input module; 72. Timing module; 73. Alarm module; 74. Accumulation module; 75. Reporting module; 751. Submission unit; 752. Fault unit; 753. Error unit; 8. Main control module; 81. Query unit; 82. Database. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 This application will be described in further detail.

[0025] This application discloses a wet wipes production control system, including a pressure module 6, a data acquisition module 1, a comparison module 2, a transfer module 3, a negative pressure chamber, a main control module 8, a counting module 4, a difference module 5, and a handheld terminal 7. The handheld terminal 7 includes an alarm module 73, an input module 71, a reporting module 75, a timing module 72, and an accumulation module 74. The reporting module 75 further includes a submission unit 751, a fault unit 752, and an error unit 753. The main control module 8 includes a query unit 81 and a database 82, which contains a personnel information table. The main control module 8 is located in the main control room and connected to a display to show the information corresponding to the received signals. The negative pressure chamber is used to hold packaged wet wipes. The data acquisition module 1 is a camera installed inside the negative pressure chamber for image acquisition of the packaged wet wipes inside. The transfer module 3 is a robotic arm located on one side of the negative pressure chamber. The negative pressure chamber includes a chamber body, a base plate, and a hydraulic cylinder for driving the chamber body to rise and fall.

[0026] During production, transfer module 3 conveys a wet wipe to be inspected onto the base plate. A hydraulic cylinder then drives the chamber to descend, contacting the base plate and forming a seal. Air is evacuated from the chamber, creating a negative pressure that is maintained at a preset value. Due to this negative pressure, intact wipes expand, while leaky wipes are compressed. Acquisition module 1 captures images of the wipes within the negative pressure chamber and sends them to comparison module 2 for comparison with a standard image. If the image differs from the standard image, comparison module 2 sends a failure signal to transfer module 3. Upon receiving the failure signal, transfer module 3 transfers the defective wipe to a discard box. If the image matches the standard image, comparison module 2 sends a pass signal to transfer module 3. Upon receiving the pass signal, transfer module 3 transfers the pass wipe to the stacking area.

[0027] After receiving a non-compliant signal, the transfer module 3 sends a counting signal to the counting module 4. Upon receiving the counting signal, the counting module 4 increments the count by one. The difference module 5 periodically reads the count in the counting module 4 and calculates the difference between two readings. When the difference is greater than a preset value, it sends an alarm signal to the alarm module 73. Upon receiving the alarm signal, the alarm module 73 activates an alarm.

[0028] During the production process, the counting module 4 counts the defective products. When the number of defective products exceeds a certain limit within a certain period of time, the difference module 5 sends an alarm signal to the alarm module 73. After receiving the alarm signal, the alarm module 73 will sound an alarm. Since the alarm module 73 is located on the handheld terminal 7, when the alarm module 73 sounds an alarm, the operator carrying the handheld terminal 7 can know that a large number of defective products have appeared and then check them.

[0029] After receiving an alarm signal, alarm module 73 sends a timing signal to timing module 72. Timing module 72, upon receiving the timing signal, begins a countdown of duration T. If submission unit 751 is not operated after the countdown T ends, reporting module 75 sends a timeout signal to main control module 8. When multiple wipes have similar damage points, the operator operates fault unit 752 and submission unit 751. After fault unit 752 is operated, it sends a fault signal to main control module 8 and timing module 72. After submission unit 751 is operated, it sends a cancellation signal to timing module 72. When timing module 72 receives both the fault and cancellation signals, it cancels the countdown of duration T. When multiple wipes have significantly different damage points, the operator operates error unit 753 and submission unit 751. After error unit 753 is operated, it sends an error signal to main control module 8. After submission unit 751 is operated, it sends a cancellation signal to timing module 72. When timing module 72 receives both the error and cancellation signals, it cancels the countdown of duration T.

[0030] After receiving an alarm, the operator inspects the defective products. If multiple wipes have similar damage points, it indicates a malfunction in the production process. The operator then activates fault unit 752, which sends a fault signal to the main control module 8. Upon receiving the signal, the main control module 8 displays it on the monitor. The on-duty personnel in the control room then arrange for repairs based on the fault signal. If the damage points on multiple wipes are significantly different, the likelihood of a malfunction in the production process is lower. The operator then activates error unit 753, which sends an error signal to the main control module 8. Upon receiving the error signal, the main control module 8 displays it on the monitor. The on-duty personnel in the control room, upon receiving the error signal, arrange for repairs based on the production status. After activating fault unit 752 or error unit 753, the operator will also activate submission unit 751 to cancel the countdown T.

[0031] After receiving an alarm signal, the alarm module 73 sends an accumulation signal to the accumulation module 74. After receiving the accumulation signal, the accumulation module 74 increments the accumulated value by one. When the accumulated value exceeds the preset value, the accumulation module 74 sends a maintenance signal to the main control module 8 and prompts the operator carrying the handheld terminal 7.

[0032] During operation, if the accumulated value by the accumulation module 74 exceeds a preset value, it indicates that the defect rate of wet wipes is too high, requiring maintenance of the production process. Therefore, when the main control module 8 receives the maintenance signal, it will be displayed on the monitor. The on-duty personnel in the main control room will then arrange for personnel to maintain the production process based on the maintenance signal. Personnel carrying the handheld terminal 7 will also maintain their assigned process after receiving the maintenance signal.

[0033] The input module 71 records the current operator information and sends it to the reporting module 75. The timeout signal sent by the reporting module 75 includes the current operator information. The query unit 81 receives the timeout signal, queries the database 82 for the corresponding personnel based on the current operator information in the timeout signal, and records the timeout.

[0034] If the operator fails to report the cause of the defect within the countdown time T, the reporting module 75 will send a timeout signal to the main control module 8. The query unit 81 will then query the corresponding personnel in the database 82 based on the current operator information in the main control module 8 and record the timeout.

[0035] Pressure module 6 is used to detect the air pressure in the negative pressure box. The difference module 5 includes a temporary storage unit 51 and a judgment unit 52. The temporary storage unit 51 is used to store the difference calculation results of each production cycle. The judgment unit 52 is used to read the data of the temporary storage unit 51 during the production cycle. If all the data are zero, the pressure value of pressure module 6 is queried. If the pressure value is greater than the standard value, a pressure relief signal is sent to the main control module 8.

[0036] If no defective products are found during the production cycle, it indicates that the negative pressure box may be faulty. The pressure module 6 detects the pressure inside the negative pressure box and compares it with the preset negative pressure value. If the pressure value is greater than the preset negative pressure value, a pressure relief signal is sent to the main control module 8, so that the operators in the main control room can arrange maintenance personnel to repair the negative pressure box.

[0037] The implementation principle of this embodiment is as follows: In use, the packaged wet wipes are tested through a negative pressure box, which improves the detection effect of defective products. At the same time, the number of defective products can be used to calculate whether there are faults in the production process, thus improving the monitoring effect of the production process.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wet wipe production control system characterized by: The system includes a data acquisition module (1), a comparison module (2), a transfer module (3), and a negative pressure chamber. The negative pressure chamber is used to hold packaged wet wipes. The data acquisition module (1) is located inside the negative pressure chamber and is used to acquire images of the wet wipes inside the negative pressure chamber. The data acquisition module (1) sends the acquired images to the comparison module (2). The comparison module (2) compares the received images with a standard image. When the images do not match the standard image, a non-compliance signal is sent to the transfer module (3). After receiving the non-compliance signal, the transfer module (3) discards the products inside the negative pressure chamber. The system also includes a main control module (8), an alarm module (73), a counting module (4), and a difference module (5). After receiving the non-compliance signal, the transfer module (3) sends a counting signal back to the counting module (4). After receiving the counting signal, the counting module (4) counts. The difference module (5) periodically reads the count in the counting module (4) and calculates the difference between two readings. When the difference is greater than the preset value, an alarm signal is sent to the alarm module (73). The alarm module (73) alarms after receiving the alarm signal. The system also includes a pressure module (6), which is used to detect the air pressure in the negative pressure box. The difference module (5) includes a temporary storage unit (51) and a judgment unit (52). The temporary storage unit (51) is used to store the difference calculation results in each production cycle. The judgment unit (52) is used to read the data in the temporary storage unit (51) in the production cycle. If all the data are zero, the pressure value of the pressure module (6) is queried. If the pressure value is greater than the standard value, a pressure relief signal is sent to the main control module (8).

2. The wet wipe production control system according to claim 1, characterized in that: It also includes a handheld terminal (7), which is carried by the operator. The alarm module (73) is installed in the handheld terminal (7). The handheld terminal (7) is also equipped with a reporting module (75) and a timing module (72). After receiving the alarm signal, the alarm module (73) sends a timing signal to the timing module (72). After receiving the timing signal, the timing module (72) starts a countdown of duration T. The reporting module (75) includes a submission unit (751). After the countdown T ends, if the submission unit (751) is not operated, the reporting module (75) sends a timeout signal to the main control module (8).

3. A wet wipe production control system according to claim 2, wherein: The handheld terminal (7) further includes an input module (71), which is used to record the current operator information and send the current operator information to the reporting module (75). The timeout signal sent by the reporting module (75) includes the current operator information.

4. A wet wipe production control system according to claim 3, wherein: The main control module (8) includes a query unit (81) and a database (82). The database (82) contains a personnel information table. The query unit (81) is used to receive timeout signals, query the corresponding personnel in the database (82) according to the current operator information in the timeout signal, and record the timeout.

5. A wet wipe production control system according to claim 2, wherein: The reporting module (75) also includes a fault unit (752) and an error unit (753). When multiple wet wipes have the same damage, the operator operates the fault unit (752) and the submission unit (751). After the fault unit (752) is operated, it sends a fault signal to the main control module (8) and the timing module (72). After the submission unit (751) is operated, it sends a cancellation signal to the timing module (72). When the timing module (72) receives the fault signal and the cancellation signal, the cancellation time is counted down to T. When the difference between multiple wet wipes with damage is greater than a preset value, the operator operates the error unit (753) and the submission unit (751). After the error unit (753) is operated, it sends an error signal to the main control module (8). After the submission unit (751) is operated, it sends a cancellation signal to the timing module (72). When the timing module (72) receives the error signal and the cancellation signal, the cancellation time is counted down to T.

6. A wet wipe production control system according to claim 2, wherein: The handheld terminal (7) also includes an accumulation module (74). After receiving the alarm signal, the alarm module (73) sends an accumulation signal to the accumulation module (74). After receiving the accumulation signal, the accumulation module (74) increments the accumulated value by one. When the accumulated value exceeds the preset value, the accumulation module (74) sends a maintenance signal to the main control module (8) and prompts the operator carrying the handheld terminal (7).

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