A cleaning machine air knife air pressure monitoring system and method

Abstract

The present invention provides a cleaning machine air knife air pressure monitoring system and method, comprising a central control system, a cleaning module, a packaging module, an air pressure monitoring module, and a conveying module. The cleaning module is disposed in the cleaning area of ​​the glass substrate, and the cleaning module uses wind power to dry the water film on the surface of the glass substrate. The packaging module is disposed in the packaging area of ​​the glass substrate. A working method of the cleaning machine air knife air pressure monitoring system is provided, comprising: S1, collecting information on particulate matter content; S2, determining and adjusting abnormal particulate matter content; S3, collecting information on pressure differential values; and S4, determining and adjusting abnormal pressure differential values. The present invention uses the air pressure monitoring module to monitor the pressure difference between the cleaning area and the outside world, and the pressure difference between the packaging area and the cleaning area in real time, and controls the cleaning module and the packaging module to adjust the internal air pressure values, so that airflow always flows outward from the inside of the cleaning module, effectively preventing the cleaned glass from being contaminated by air again.

Description

Technical Field

[0001] The invention relates to the technical field of loquat tea making, and in particular to a cleaning machine air knife air pressure monitoring system and a working method of the cleaning machine air knife air pressure monitoring system. Background Art

[0002] The glass substrates are cut, ground, cleaned, inspected, and finally packaged as good products after loading. After being cleaned in the cleaning area, some water film will adhere to the surface of the glass substrates. The glass substrates are then transported to the air knife box of the cleaning module through the conveying module. After the water film on the surface of the glass substrates is blown dry by the air knife box, they are transported to the packaging module in the packaging area. The glass substrates are packaged in a constant temperature environment. To facilitate the transportation of the glass substrates, the air knife box of the cleaning machine is connected to the outside air and the interior of the packaging module.

[0003] However, in this through-flow state, it is easy for the air pressure inside the cleaning machine's air knife box to be lower than the external air pressure or the air pressure inside the packaging module. Because the high-pressure airflow will flow to the low-pressure position, the air and particles in the packaging module will be blown onto the surface of the cleaned and dried glass, resulting in poor cleaning of the glass substrate and reduced surface quality of the packaged glass substrate.

[0004] In summary, there is a need for a monitoring system that can monitor and adjust the air pressure inside the air knife box of a cleaning machine. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cleaning machine air knife air pressure monitoring system and method, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A cleaning machine air knife air pressure monitoring system includes a central control system, a cleaning module, a packaging module, an air pressure monitoring module, and a conveying module. The cleaning module is disposed in a cleaning area for glass substrates and dries the water film on the surface of the glass substrates by air force. The packaging module is disposed in a packaging area for the glass substrates. The air pressure monitoring module is used to monitor the pressure difference between the cleaning area and the outside air, and the pressure difference between the packaging area and the central control system. The cleaning module and the packaging module are connected to the cleaning module and the packaging module to control the air pressure in the cleaning and packaging areas.

[0008] The central control system is connected to the conveying module and is used to control the conveyance of the glass substrate between the cleaning module and the packaging module. The central control system is internally connected to an information storage unit, and the information storage unit is used to store the minimum value information of the preset pressure difference value;

[0009] The cleaning module includes a cleaning machine air knife box, and an air knife is connected inside the cleaning machine air knife box. The air knife is used to dry the water film on the surface of the glass substrate and blow away particulate matter. The central control system is connected to the air knife and can control the air output volume, which is used to control the air pressure inside the cleaning machine air knife box.

[0010] Furthermore, the cleaning module also includes a particle detector, which is used to monitor the particle content on the surface of the glass substrate after drying. The particle detector is connected to the central control system for transmitting particle content information, and the information storage unit stores the preset maximum value information of the particle content.

[0011] Furthermore, the packaging module includes a glass packaging chassis and an FFU purifier. The FFU purifier can control the air output to regulate the constant temperature for inspection of packaged finished products. The central control system is connected to the FFU purifier to control the air pressure inside the glass packaging chassis.

[0012] Furthermore, the air pressure monitoring module includes a first pressure difference sensor and a second pressure difference sensor;

[0013] The first pressure difference sensor is installed between the cleaning machine air knife box and the glass packaging machine box, and is used to monitor the air pressure difference between the cleaning machine air knife box and the glass packaging machine box;

[0014] The second pressure difference sensor is installed on the air knife box of the cleaning machine and is used to monitor the pressure difference between the air knife box of the cleaning machine and the outside air.

[0015] Furthermore, the air pressure monitoring module also includes a pressure differential display and an alarm unit. The pressure differential display is respectively connected to the first pressure differential sensor and the second pressure differential sensor, and is used for real-time statistics of the pressure differential values ​​monitored in each time period and graphical display of the pressure differential values. The alarm unit is used to give an alarm for abnormal pressure differential values ​​monitored by the first pressure differential sensor and the second pressure differential sensor.

[0016] A working method of a cleaning machine air knife air pressure monitoring system, the working method comprising the following steps:

[0017] S1. Collection of particulate matter content information;

[0018] The particle detector monitors the particle content on the surface of the glass substrate after air knife drying and transmits the monitored particle content information to the central control system;

[0019] S2. Determination and adjustment of abnormal particulate matter content;

[0020] The central control system retrieves the preset maximum value of particulate matter content from the information storage unit, compares it with the particulate matter content information transmitted by the particle detector, and makes abnormal judgments and adjustments;

[0021] If the transmitted particulate matter content is greater than the preset maximum particulate matter content, it is judged as abnormal; otherwise, it is judged as normal:

[0022] Abnormal adjustment: The central control system controls the conveying module to stop running and controls the air knife to increase the air output until the particle detector monitors the particle content to be normal. At this time, the air output of the air knife is recorded as a;

[0023] S3, pressure difference value information collection;

[0024] The first differential pressure sensor and the second differential pressure sensor transmit the monitored differential pressure value information data to the central control system and the differential pressure display in real time, and the differential pressure display counts the differential pressure value information and displays the statistical image;

[0025] S4. Judgment and adjustment of abnormal pressure difference value;

[0026] The central control system retrieves the minimum value information of the preset pressure difference value from the information storage unit, compares the pressure difference value information transmitted by the first pressure difference sensor and the second pressure difference sensor, and makes abnormal judgment and adjustment;

[0027] S4.1. Determine and adjust the abnormal pressure difference value information of the first pressure difference sensor;

[0028] If the pressure difference value monitored by the first pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0029] Abnormal adjustment: The central control system controls the conveying module to stop running, controls the air knife to increase the air output, and controls the FFU purifier to reduce the air output until the pressure difference value monitored by the first pressure difference sensor is not less than the minimum value of the preset pressure difference value. At this time, the air output volume of the air knife is recorded as b;

[0030] S4.2. Determine and adjust the abnormal pressure difference value information of the second pressure difference sensor;

[0031] If the pressure difference value monitored by the second pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0032] Abnormal adjustment: The central control system controls the conveying module to stop running, and controls the air knife to increase the air output until the pressure difference value monitored by the second pressure difference sensor is not less than the minimum value of the preset pressure difference value.

[0033] At this time, the air output of the wind knife is recorded as c.

[0034] Furthermore, the air output of the air knife is a<b<c.

[0035] The present invention provides a system and method for monitoring air pressure in a cleaning machine's air knife. Compared to existing technologies, this system offers the following advantages: A pressure monitoring module monitors the pressure differential between the cleaning area and the outside world, as well as the pressure differential between the packaging area and the cleaning area, in real time. If the pressure differential does not meet a preset standard, the central control system controls the conveying module to suspend conveying glass substrates and controls the cleaning and packaging modules to adjust their internal pressures. This ensures that the pressure differential between the cleaning module and the outside world, as well as the packaging area, is maintained, ensuring that airflow always flows outward from the cleaning module. This prevents external airflow from entering the cleaning area and effectively prevents secondary contamination of the cleaned glass by air. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A system block diagram of a cleaning machine air knife pressure monitoring system according to the present invention is shown;

[0038] Figure 2 A system block diagram of the air pressure monitoring module of the present invention is shown. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] Example 1

[0041] In order to solve the technical problems in the background technology, the following is a cleaning machine air knife pressure monitoring system:

[0042] Combine Figure 1-Figure 2 As shown, the present invention provides a cleaning machine air knife air pressure monitoring system, comprising a central control system, a cleaning module, a packaging module, an air pressure monitoring module, and a conveying module. The cleaning module is arranged in the cleaning area of ​​the glass substrate, and the cleaning module dries the water film on the surface of the glass substrate by wind. The packaging module is arranged in the packaging area of ​​the glass substrate. The air pressure monitoring module is used to monitor the pressure difference between the cleaning area and the outside air and the pressure difference between the packaging area. The central control system is connected to the cleaning module and the packaging module respectively to control the air pressure values ​​in the cleaning area and the packaging area.

[0043] The central control system is connected to the conveying module and is used to control the conveyance of the glass substrate between the cleaning module and the packaging module. The central control system is internally connected to an information storage unit, and the information storage unit is used to store the minimum value information of the preset pressure difference value;

[0044] The cleaning module includes a cleaning machine air knife box, and an air knife is connected inside the cleaning machine air knife box. The air knife is used to dry the water film on the surface of the glass substrate and blow away particulate matter. The central control system is connected to the air knife and can control the air output volume, which is used to control the air pressure inside the cleaning machine air knife box.

[0045] The air pressure monitoring module monitors the pressure difference between the cleaning area and the outside world, and the pressure difference between the packaging area and the cleaning area in real time. When the pressure difference does not meet the preset standard, the central control system controls the conveying module to suspend the conveyance of the glass substrate, and controls the cleaning module and the packaging module to adjust the internal air pressure to ensure the pressure difference between the inside of the cleaning module and the outside world and the packaging area, so that the airflow always flows out from the inside of the cleaning module, thereby preventing external airflow from entering the cleaning area and effectively preventing the cleaned glass from being contaminated by the air again.

[0046] As an improvement of the above technical solution, the cleaning module also includes a particle detector, which is used to monitor the particle content on the surface of the glass substrate after drying. The particle detector is connected to the central control system for transmitting particle content information, and the information storage unit stores the preset maximum value information of the particle content.

[0047] As an improvement to the above technical solution, the packaging module includes a glass packaging chassis and an FFU purifier. The FFU purifier can control the air output to regulate the constant temperature for the inspection of the packaged finished product. The central control system is connected to the FFU purifier to control the air pressure inside the glass packaging chassis.

[0048] The FFU purifier controls the temperature inside the glass packaging chassis by discharging purified air at a constant temperature. When the air pressure inside the glass packaging chassis needs to be adjusted, it is only necessary to control the air output of the FFU purifier to adjust the air pressure.

[0049] As an improvement of the above technical solution, the air pressure monitoring module includes a first pressure difference sensor and a second pressure difference sensor;

[0050] The first pressure difference sensor is installed between the cleaning machine air knife box and the glass packaging machine box, and is used to monitor the air pressure difference between the cleaning machine air knife box and the glass packaging machine box;

[0051] The second pressure difference sensor is installed on the air knife box of the cleaning machine and is used to monitor the pressure difference between the air knife box of the cleaning machine and the outside air.

[0052] As an improvement to the above technical solution, the air pressure monitoring module further includes a pressure differential display and an alarm unit. The pressure differential display is connected to the first pressure differential sensor and the second pressure differential sensor, respectively, for real-time statistics of the pressure differential values ​​monitored in each time period and a graphical display of the pressure differential values. The alarm unit is used to give an alarm if the pressure differential values ​​monitored by the first pressure differential sensor and the second pressure differential sensor are abnormal.

[0053] The pressure differential display and alarm unit enable workers on site to more intuitively observe the cleaning and packaging conditions of the glass substrates, and can manually check and make timely adjustments.

[0054] Example 2

[0055] When the amount of particulate matter on the glass substrate exceeds the standard, it is necessary to make an immediate judgment based on the feedback of the air pressure value information and adjust the various instruments and equipment in the monitoring system. It is necessary to improve the efficiency of judgment and adjustment to solve the abnormal problem in time. Based on the above problem, the following working method is given;

[0056] Based on the above embodiment, this embodiment further provides a working method of a cleaning machine air knife pressure monitoring system:

[0057] The working method comprises the following steps:

[0058] S1. Collection of particulate matter content information;

[0059] The particle detector monitors the particle content on the surface of the glass substrate after air knife drying and transmits the monitored particle content information to the central control system;

[0060] S2. Determination and adjustment of abnormal particulate matter content;

[0061] The central control system retrieves the preset maximum value of particulate matter content from the information storage unit, compares it with the particulate matter content information transmitted by the particle detector, and makes abnormal judgments and adjustments;

[0062] If the transmitted particulate matter content is greater than the preset maximum particulate matter content, it is judged as abnormal; otherwise, it is judged as normal:

[0063] Abnormal adjustment: The central control system controls the conveying module to stop running and controls the air knife to increase the air output until the particle detector monitors the particle content to be normal. At this time, the air output of the air knife is recorded as a;

[0064] S3, pressure difference value information collection;

[0065] The first differential pressure sensor and the second differential pressure sensor transmit the monitored differential pressure value information data to the central control system and the differential pressure display in real time, and the differential pressure display counts the differential pressure value information and displays the statistical image;

[0066] S4. Judgment and adjustment of abnormal pressure difference value;

[0067] The central control system retrieves the minimum value information of the preset pressure difference value from the information storage unit, compares the pressure difference value information transmitted by the first pressure difference sensor and the second pressure difference sensor, and makes abnormal judgment and adjustment;

[0068] S4.1. Determine and adjust the abnormal pressure difference value information of the first pressure difference sensor;

[0069] If the pressure difference value monitored by the first pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0070] Abnormal adjustment: The central control system controls the conveying module to stop running, controls the air knife to increase the air output, and controls the FFU purifier to reduce the air output until the pressure difference value monitored by the first pressure difference sensor is not less than the minimum value of the preset pressure difference value. At this time, the air output volume of the air knife is recorded as b;

[0071] S4.2. Determine and adjust the abnormal pressure difference value information of the second pressure difference sensor;

[0072] If the pressure difference value monitored by the second pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0073] Abnormal adjustment: The central control system controls the conveying module to stop running, and controls the air knife to increase the air output until the pressure difference value monitored by the second pressure difference sensor is not less than the minimum value of the preset pressure difference value.

[0074] At this time, the air output of the wind knife is recorded as c.

[0075] As an improvement of the above technical solution, the air output of the air knife is a<b<c.

[0076] The working principle and use process of the present invention:

[0077] S1. Collection of particulate matter content information;

[0078] The particle detector monitors the particle content on the surface of the glass substrate after air knife drying and transmits the monitored particle content information to the central control system;

[0079] S2. Determination and adjustment of abnormal particulate matter content;

[0080] The central control system retrieves the preset maximum value of particulate matter content from the information storage unit, compares it with the particulate matter content information transmitted by the particle detector, and makes abnormal judgments and adjustments;

[0081] If the transmitted particulate matter content is greater than the preset maximum particulate matter content, it is judged as abnormal; otherwise, it is judged as normal:

[0082] Abnormal adjustment: The central control system controls the conveying module to stop running and controls the air knife to increase the air output until the particle detector monitors the particle content to be normal. At this time, the air output of the air knife is recorded as a;

[0083] S3, pressure difference value information collection;

[0084] The first differential pressure sensor and the second differential pressure sensor transmit the monitored differential pressure value information data to the central control system and the differential pressure display in real time, and the differential pressure display counts the differential pressure value information and displays the statistical image;

[0085] S4. Judgment and adjustment of abnormal pressure difference value;

[0086] The central control system retrieves the minimum value information of the preset pressure difference value from the information storage unit, compares the pressure difference value information transmitted by the first pressure difference sensor and the second pressure difference sensor, and makes abnormal judgment and adjustment;

[0087] S4.1. Determine and adjust the abnormal pressure difference value information of the first pressure difference sensor;

[0088] If the pressure difference value monitored by the first pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0089] Abnormal adjustment: The central control system controls the conveying module to stop running, controls the air knife to increase the air output, and controls the FFU purifier to reduce the air output until the pressure difference value monitored by the first pressure difference sensor is not less than the minimum value of the preset pressure difference value. At this time, the air output volume of the air knife is recorded as b;

[0090] S4.2. Determine and adjust the abnormal pressure difference value information of the second pressure difference sensor;

[0091] If the pressure difference value monitored by the second pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal;

[0092] Abnormal adjustment: The central control system controls the conveying module to stop running, and controls the air knife to increase the air output until the pressure difference value monitored by the second pressure difference sensor is not less than the minimum value of the preset pressure difference value.

[0093] At this time, the air volume of the air knife is recorded as c;

[0094] The air output of the air knife is a<b<c.

[0095] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0096] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A cleaning machine air knife pressure monitoring system, characterized by: The system comprises a central control system, a cleaning module, a packaging module, an air pressure monitoring module, and a conveying module. The cleaning module is arranged in the cleaning area of ​​the glass substrate and dries the water film on the surface of the glass substrate by wind. The packaging module is arranged in the packaging area of ​​the glass substrate. The air pressure monitoring module is used to monitor the pressure difference between the cleaning area and the outside air, and the pressure difference between the packaging area. The central control system is connected to the cleaning module and the packaging module respectively to control the air pressure values ​​in the cleaning area and the packaging area. The central control system is connected to the conveying module and is used to control the conveyance of the glass substrate between the cleaning module and the packaging module. The central control system is internally connected to an information storage unit, and the information storage unit is used to store the minimum value information of the preset pressure difference value; The cleaning module includes a cleaning machine air knife box, and an air knife is connected inside the cleaning machine air knife box. The air knife is used to dry the water film on the surface of the glass substrate and blow away particulate matter. The central control system is connected to the air knife and can control the air output volume, which is used to control the air pressure inside the cleaning machine air knife box.

2. The air knife pressure monitoring system for a cleaning machine according to claim 1, characterized in that: The cleaning module also includes a particle detector, which is used to monitor the particle content on the surface of the glass substrate after drying. The particle detector is connected to the central control system for transmitting particle content information. The information storage unit stores preset maximum particle content information.

3. The air knife pressure monitoring system for a cleaning machine according to claim 1, characterized in that: The packaging module includes a glass packaging chassis and an FFU purifier. The FFU purifier can control the air output to regulate the constant temperature for inspection of packaged finished products. The central control system is connected to the FFU purifier to control the air pressure inside the glass packaging chassis.

4. The air knife pressure monitoring system for a cleaning machine according to claim 3, characterized in that: The air pressure monitoring module includes a first pressure differential sensor and a second pressure differential sensor; The first pressure difference sensor is installed between the cleaning machine air knife box and the glass packaging machine box, and is used to monitor the air pressure difference between the cleaning machine air knife box and the glass packaging machine box; The second pressure difference sensor is installed on the air knife box of the cleaning machine and is used to monitor the pressure difference between the air knife box of the cleaning machine and the outside air.

5. The air knife pressure monitoring system for a cleaning machine according to claim 4, characterized in that: The air pressure monitoring module also includes a pressure differential display and an alarm unit. The pressure differential display is connected to the first pressure differential sensor and the second pressure differential sensor respectively, and is used for real-time statistics of the pressure differential values ​​monitored in each time period and graphical display of the pressure differential values. The alarm unit is used to give an alarm for abnormal pressure differential values ​​monitored by the first pressure differential sensor and the second pressure differential sensor.

6. A method for operating a cleaning machine air knife pressure monitoring system, characterized in that: The working method comprises the following steps: S1. Collection of particulate matter content information; The particle detector monitors the particle content on the surface of the glass substrate after air knife drying and transmits the monitored particle content information to the central control system; S2. Determination and adjustment of abnormal particulate matter content; The central control system retrieves the preset maximum value of particulate matter content from the information storage unit, compares it with the particulate matter content information transmitted by the particle detector, and makes abnormal judgments and adjustments; If the transmitted particulate matter content is greater than the preset maximum particulate matter content, it is judged as abnormal; otherwise, it is judged as normal: Abnormal adjustment: The central control system controls the conveying module to stop running and controls the air knife to increase the air output until the particle detector monitors the particle content to be normal. At this time, the air output of the air knife is recorded as a. The central control system receives the normal information and controls the conveying module to start; S3, pressure difference value information collection; The first differential pressure sensor and the second differential pressure sensor transmit the monitored differential pressure value information data to the central control system and the differential pressure display in real time, and the differential pressure display counts the differential pressure value information and displays the statistical image; S4. Judgment and adjustment of abnormal pressure difference value; The central control system retrieves the minimum value information of the preset pressure difference value from the information storage unit, compares the pressure difference value information transmitted by the first pressure difference sensor and the second pressure difference sensor, and makes abnormal judgment and adjustment; S4.

1. Determine and adjust the abnormal pressure difference value information of the first pressure difference sensor; If the pressure difference value monitored by the first pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal; Abnormal adjustment: The central control system controls the conveying module to stop running, controls the air knife to increase the air output, and controls the FFU purifier to reduce the air output until the pressure difference value monitored by the first pressure difference sensor is not less than the minimum value of the preset pressure difference value. At this time, the air output volume of the air knife is recorded as b. The central control system receives normal information and controls the conveying module to start; S4.

2. Determine and adjust the abnormal pressure difference value information of the second pressure difference sensor; If the pressure difference value monitored by the second pressure difference sensor is less than the minimum value of the preset pressure difference value, it is judged as abnormal; otherwise, it is judged as normal; Abnormal adjustment: The central control system controls the conveying module to stop running, and controls the wind knife to increase the air output until the pressure difference value monitored by the second pressure difference sensor is not less than the minimum value of the preset pressure difference value. At this time, the air output of the wind knife is recorded as c. The central control system receives normal information and controls the conveying module to start.

7. The operating method of the air knife pressure monitoring system for a cleaning machine according to claim 6, characterized in that: The air output of the air knife is a<b<c.

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