Electrostatic monitoring system suitable for production line

Abstract

The electrostatic monitoring system comprises a control unit, a first electrostatic detection unit, an electrostatic elimination unit and a second electrostatic detection unit, wherein the first electrostatic detection unit, the electrostatic elimination unit and the second electrostatic detection unit are arranged above the production line; the electrostatic detection unit comprises a plurality of electrostatic sensors, and each electrostatic sensor is configured to correspondingly detect the electric quantity of a specified area of an object to be detected on the production line; the static elimination unit comprises an ion rod, a circuit control device, a gas path and a gas path control valve, the circuit control device opens the ion rod discharge needle to discharge, and the gas path control valve opens the gas path to blow charges released by the discharge needle to an object to be detected; the control unit is used for controlling a circuit control device and a gas path control valve of the static elimination unit to be opened under the condition that the electric quantity detected by the static sensor in the first static detection unit is not within a normal threshold range; and providing detection results of the electrostatic sensors in the second electrostatic detection unit to the upper computer for display. The number of replaced ion bars is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrostatic monitoring, and in particular to an electrostatic monitoring system suitable for a production line. Background Art

[0002] In the production process of LCD panels, the generation of static electricity is inevitable. Static electricity discharge will break down integrated circuits and precision electronic components, absorb dust, cause damage and pollution to integrated circuits and semiconductor components, and reduce production yield. Therefore, on the LCD panel production line, along the running route and running direction of the conveyor belt, above the panel, multiple ion rods for static electricity elimination are usually installed. The ion rod is generally composed of a high-voltage generator and multiple discharge needles. The high-voltage corona discharge at the tip of the discharge needle ionizes the air into positive or negative ions, and then blows these positive or negative ions to the surface of the object with the help of compressed air to neutralize static electricity. Utility Model Content

[0003] In current static elimination units, the tip of the ion rod discharge needle will be oxidized or worn after a period of use, and the discharge effect of the discharge needle will deteriorate, which in turn affects the static elimination effect of the entire device and requires timely maintenance or replacement. Usually, the entire ion rod needs to be replaced. However, the number of ion rods that need to be replaced in the entire production workshop or the entire factory is large, and the maintenance of the static detection system of the production line requires a relatively large investment, which increases the equipment maintenance cost.

[0004] In view of the above problems, the present invention is proposed to provide a static electricity monitoring system applicable to a production line that overcomes the above problems or at least partially solves the above problems.

[0005] An embodiment of the present invention provides a static electricity monitoring system suitable for a production line, comprising: a control unit, a first static electricity detection unit arranged above the production line, a static electricity elimination unit, and a second static electricity detection unit;

[0006] The first electrostatic detection unit and the second electrostatic detection unit include at least two electrostatic sensors, each of which is configured to detect the charge of a specified area of ​​the object to be detected on the production line;

[0007] The static elimination unit includes an ion rod, a circuit control device, an air circuit and an air circuit control valve. When the circuit control device is turned on, the ion rod discharge needle discharges. When the air circuit control valve is turned on, the air circuit works to blow the charge released by the discharge needle toward the object to be detected.

[0008] A control unit is used to control the circuit control device and the air path control valve of the static elimination unit to open when the charge detected by at least one electrostatic sensor in the first electrostatic detection unit is not within a normal threshold range; and to provide the detection results of each electrostatic sensor in the second electrostatic detection unit to the host computer for display.

[0009] In an optional embodiment, the arrangement direction of at least two electrostatic sensors in each electrostatic detection unit is perpendicular to the conveying direction of the conveyor belt of the production line;

[0010] The number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the installation height of the electrostatic sensor relative to the production line; or the number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the detection range of the electrostatic sensor.

[0011] In an optional implementation manner, the electrostatic detection unit further comprises a first bracket, on which at least two mounting rods are provided for mounting the electrostatic sensor.

[0012] In an optional embodiment, the static elimination unit further comprises a second bracket for mounting the ion rod;

[0013] The circuit control device is electrically connected to the control unit and is turned on or off under the control of the control unit to supply power to the ion rod;

[0014] The air path control valve is arranged on the air path of the static elimination unit and is electrically connected to the control unit. It is opened or closed under the control of the control unit to control the external air compression unit to supply air to the air path.

[0015] The circuit control device is a relay, and the gas circuit control valve is a solenoid valve.

[0016] In an optional implementation manner, the static electricity elimination unit is disposed between the first static electricity detection unit and the second static electricity detection unit, and the second static electricity detection unit is disposed in front of the first static electricity detection unit.

[0017] In an optional implementation manner, the static electricity monitoring system applicable to the production line further comprises: a temperature sensor disposed above the production line, the temperature sensor being electrically connected to the control unit;

[0018] The control unit is used to transmit the temperature data collected by the temperature sensor to the host computer.

[0019] In an optional implementation manner, the static electricity monitoring system applicable to the production line further comprises: a humidity sensor disposed above the production line, the humidity sensor being electrically connected to the control unit;

[0020] The control unit is used to transmit the humidity data collected by the temperature sensor to the host computer.

[0021] In an optional implementation manner, the electrostatic monitoring system applicable to the production line further comprises: a host computer;

[0022] The host computer is used to receive and display at least one of the charge data detected by the first electrostatic detection unit, the charge data detected by the second electrostatic detection unit, the temperature data, and the humidity data transmitted by the control unit.

[0023] In an optional implementation manner, the control unit is further used for:

[0024] Based on the delay time provided by the host computer, the circuit control device and the air path control valve in the static elimination unit are controlled to delay opening; the delay time is set according to the distance between the first static detection unit and the static elimination unit.

[0025] The beneficial effects of the above technical solution provided by the embodiment of the present invention include at least:

[0026] The electrostatic monitoring system of the production line of the present invention comprises a control unit, a first electrostatic detection unit, a static elimination unit and a second electrostatic detection unit arranged above the production line. The first electrostatic detection unit and the second electrostatic detection unit comprise at least two electrostatic sensors, each of which is configured to correspond to the detection of the charge of a designated area of ​​an object to be detected on the production line; the electrostatic elimination unit comprises an ion rod, a circuit control device, an air circuit and an air circuit control valve, and when the circuit control device is turned on, the ion rod discharge needle discharges, and when the air circuit control valve is turned on, the air circuit works to blow the charge released by the discharge needle to the object to be detected; a control unit is used to control the circuit control device and the air circuit control valve of the electrostatic elimination unit to open when the charge detected by at least one electrostatic sensor in the first electrostatic detection unit is not within a normal threshold range; and the detection results of each electrostatic sensor in the second electrostatic detection unit are provided to a host computer for display. In this way, only the designated discharge needle needs to be replaced without replacing the entire ion rod, which reduces the number of ion rod replacements and reduces maintenance costs.

[0027] Furthermore, the host computer determines the start time of the static elimination unit according to the speed of the conveyor belt and the distance between the static elimination unit and the static detection unit, thereby reducing the use time of the discharge needle, thereby reducing the maintenance frequency of the discharge needle and reducing the maintenance cost.

[0028] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0029] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 Schematic diagram of the structure of an electrostatic monitoring system applicable to a production line in an embodiment of the present invention;

[0032] Figure 2 Schematic diagram of the specific structure of the electrostatic monitoring system suitable for production line in the embodiment of the present invention

[0033] Figure 3 A schematic diagram of the specific structure of an electrostatic sensor in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the principle of detecting abnormal charging by an electrostatic sensor in an embodiment of the present invention;

[0035] Figure 5 Schematic diagram of the specific structure of the control unit in the embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-control unit, 2-first electrostatic detection unit, 3-second electrostatic detection unit, 4-static elimination unit, 5-electrostatic sensor, 6-first bracket, 7-discharge needle, 8-circuit control device, 9-ion rod, 10-gas path control valve, 11-gas path, 12-temperature sensor, 13-humidity sensor, 14-first mounting rod, 15-second bracket, 16-second mounting rod, 17-host computer. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In order to solve the problems existing in the prior art, an embodiment of the present invention provides a static electricity monitoring system suitable for a production line.

[0042] A static electricity monitoring system for a production line, such as Figure 1 The device shown includes: a control unit 1, a first static electricity detection unit 2, a static electricity elimination unit 4 and a second static electricity detection unit 3 arranged above the production line;

[0043] The first electrostatic detection unit 2 and the second electrostatic detection unit 3 include at least two electrostatic sensors 5, each of which is configured to detect the charge of a specified area of ​​the object to be detected on the production line;

[0044] The static elimination unit includes an ion rod 9, a circuit control device 8, an air circuit 11 and an air circuit control valve 10. When the circuit control device 8 is turned on, the ion rod discharge needle 7 discharges. When the air circuit control valve 10 is turned on, the air circuit 11 works to blow the charge released by the discharge needle 7 toward the object to be detected.

[0045] The control unit 1 is used to control the circuit control device 8 and the air path control valve 10 of the static elimination unit to open when the charge detected by at least one static sensor 5 in the first static detection unit 2 is not within a normal threshold range; and to provide the detection results of each static sensor 5 in the second static detection unit 3 to the host computer for display.

[0046] In this embodiment, the control unit 1 may be a PLC or a single chip microcomputer.

[0047] Further, the arrangement direction of at least two electrostatic sensors 5 in each electrostatic detection unit is perpendicular to the conveying direction of the conveyor belt of the production line;

[0048] The number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the installation height of the electrostatic sensor relative to the production line; or the number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the detection range of the electrostatic sensor.

[0049] In this embodiment, optionally, the production line uses a specified model of LCD panel production line, the width (W) of the production line is 1500 [mm], the conveying direction is parallel to the long side, and the electrostatic sensor can be, for example, an electrostatic sensor of model IZD10-110.

[0050] Specific electrostatic sensors such as Figure 3 As shown, the installation height is the vertical distance from the detection hole of the electrostatic sensor to the object to be detected, and the detection range is the diameter of the detection area covered by the electrostatic sensor on the object to be detected; wherein, for the same type of electrostatic sensors, the installation height and the detection range have a corresponding relationship, for example: the installation height of 10 [mm] corresponds to a detection range of 45 [mm], the installation height of 20 [mm] corresponds to a detection range of 85 [mm], the installation height of 25 [mm] corresponds to a detection range of 100 [mm], the installation height of 30 [mm] corresponds to a detection range of 120 [mm], and the installation height of 40 [mm] corresponds to a detection range of 150[mm], the installation height is 50[mm] and the corresponding detection range is 180[mm]; the number of electrostatic sensors that need to be set is obtained according to the width of the production line and the detection range. There is a one-to-one correspondence between the installation height and the detection range. The number of electrostatic sensors that need to be set can also be obtained according to the width of the production line and the installation height; for example: the electrostatic sensor is set at a position where its detection hole is 25[mm] away from the liquid crystal panel, then a circular area with a diameter d of 100[mm] with the detection hole as the center can be detected. The width of the liquid crystal panel (W) is 1500[mm], and N=1500 / 100=15 electrostatic sensors need to be arranged.

[0051] After the installation height of the electrostatic sensor is determined, the characteristic curve between the analog voltage output of the electrostatic sensor and the detected potential of the charged object can be obtained; for example Figure 4 The figure shows the characteristic curve when the installation height is 25mm. When the charge on the surface of the LCD panel is greater than the upper threshold LimH (+0.2kV), the electrostatic sensor outputs abnormal charge; when the charge on the surface of the LCD panel is less than the lower threshold LimL (-0.2kV), the electrostatic sensor outputs abnormal charge. According to the characteristic curve of the electrostatic sensor output abnormal charge, Figure 4As shown, when the analog voltage value read by the control unit is greater than 4.0V or less than 2.0V, it can be considered that the charge of the liquid crystal panel is abnormal.

[0052] Furthermore, the specific structure of the electrostatic monitoring system suitable for the production line is as follows Figure 2 As shown, the electrostatic detection unit further includes a first bracket 6 , on which at least two first mounting rods 14 are arranged to mount the electrostatic sensor 5 .

[0053] In this embodiment, a bracket is installed at a certain distance from the sub-rod along the running direction of the conveyor belt of the liquid crystal panel production line, and multiple electrostatic sensors are installed under the bracket. The number of electrostatic sensors can be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and the number set according to the demand. Each electrostatic sensor can monitor the charge of each point of the liquid crystal panel, and the electrostatic sensor has an analog voltage / current output function, which can feed back the charge of each point of the liquid crystal panel to the control unit.

[0054] Furthermore, the static elimination unit also includes a second bracket 15 for mounting the ion rod 9; the circuit control device 8 is electrically connected to the control unit 1, and is opened or closed under the control of the control unit 1 to supply power to the ion rod 9; the gas path control valve 10 is arranged on the gas path of the static elimination unit, and is electrically connected to the control unit 1, and is opened or closed under the control of the control unit 1 to control the external air compression unit to supply gas to the gas path. The circuit control device 8 can select a device that can control the on-off of the circuit, such as a relay; the gas path control valve can select a device that can control the on-off of the gas path, such as a solenoid valve.

[0055] In this embodiment, a solenoid valve is specifically set at the gas source of the ion rod, and the control unit controls the switch (ON / OFF) of the solenoid valve, thereby controlling the external gas source to supply gas to the ion rod; a relay is set at the power supply of the ion rod, and the control unit controls the relay switch (ON / OFF) to control the power supply of the ion rod.

[0056] In this example, the control unit is Figure 5 As shown, it includes a communication component, a CPU, a signal processing component, and a drive component, and the CPU is electrically connected to the communication component, the signal processing component, and the drive component; the control unit reads the signal of the electrostatic sensor through the signal processing component, wherein the signal of any electrostatic sensor of the first electrostatic detection unit exceeds the specified threshold upper limit (LimH) and lower limit (LimL), then an output signal (I / O) is generated after a specified delay time to turn on the relay (ON), and the ion rod starts working. After working for a specified time, the relay is turned off (OFF), and the ion rod stops working.

[0057] Further, the static elimination unit 4 is disposed between the first static detection unit 2 and the second static detection unit 3, and the second static detection unit 3 is disposed in front of the first static detection unit 2. In this example, the direction along the conveying direction is defined as the front, and the opposite direction along the conveying direction is defined as the rear.

[0058] Furthermore, the electrostatic monitoring system of the production line also includes: a temperature sensor 12 arranged above the production line, the temperature sensor 12 is electrically connected to the control unit 1; the control unit 1 is used to transmit the temperature data collected by the temperature sensor 12 to the host computer 17.

[0059] Further, if Figure 2 The static electricity monitoring system of the production line shown also includes: a humidity sensor 13 arranged above the production line, the humidity sensor 13 is electrically connected to the control unit 1; the control unit 1 is used to transmit the humidity data collected by the temperature sensor 12 to the host computer 17.

[0060] Further, if Figure 2 The electrostatic monitoring system of the production line shown also includes: a host computer 17; the host computer 17 is used to receive and display at least one of the charge data detected by the first electrostatic detection unit 2, the charge data detected by the second electrostatic detection unit 3, the temperature data, and the humidity data transmitted by the control unit 1.

[0061] The host computer 17 analyzes the influence of the temperature on the production line on the static elimination of the object to be detected based on the temperature data and the charge data, and then adjusts the static elimination unit 4 to improve the static elimination effect of the object to be detected. The host computer 17 analyzes the influence of the humidity on the production line on the static elimination of the object to be detected based on the humidity data and the charge data, and then adjusts the static elimination unit 4 to improve the static elimination effect of the object to be detected.

[0062] Furthermore, the control unit 1 is also used to: control the delayed opening of the circuit control device 8 and the air path control valve 10 in the static elimination unit 4 based on the delay time provided by the host computer 17; the delay time is set according to the distance between the first static detection unit 2 and the static elimination unit 4.

[0063] In this embodiment, the host computer 17 obtains the transmission speed of the conveyor belt of the liquid crystal panel production line, the distance between the static elimination unit 4 and the first static detection unit 2, and obtains the specified delay time according to the transmission speed and the distance. For example, the transmission speed of the conveyor belt of the liquid crystal panel production line is V, the distance between the static elimination unit 4 and the first static detection unit 2 is D, and the specified delay time is T1 = D / S.

[0064] The specific structure of the electrostatic monitoring system of the production line in this example is as follows Figure 2As shown, an electrostatic detection system is arranged above the belt of the production line. The production line includes a belt and a transmission shaft, and the object to be detected is placed above the belt. The electrostatic detection system includes a control unit 1, a first electrostatic detection unit 2, an electrostatic elimination unit 4, a second electrostatic detection unit 3, a temperature sensor 12, a humidity sensor 13, and a host computer 17. The first electrostatic detection unit 2 includes a first bracket 6, at least two first mounting rods 14, and an electrostatic sensor 5, one end of the first mounting rod 14 is mounted on the first bracket 6, and the electrostatic sensor 5 is mounted on the other end of the first mounting rod 14; the second electrostatic detection unit 3 includes a first bracket 6, at least two first mounting rods 14, and an electrostatic sensor 5, one end of the first mounting rod 14 is mounted on the first bracket 6, and the electrostatic sensor 5 is mounted on the other end of the first mounting rod 14; the electrostatic elimination unit 4 includes a second bracket 15, at least two second mounting rods 16, an ion rod 9, a circuit control device 8, and a gas path control valve 10; one end of the second mounting rod 16 is mounted on the second bracket 15, the ion rod 9 is mounted on the other end of the second bracket 15, and the discharge needle 7 is installed on the ion rod 9. The control unit 1 is electrically connected to the first electrostatic detection unit 2 , the electrostatic elimination unit 4 , and the second electrostatic detection unit 3 , and the air circuit control valve 10 is connected to the compressed air; the host computer 17 is electrically connected to the control unit 1 , the temperature sensor 12 , and the humidity sensor 13 .

[0065] The specific use process of the electrostatic monitoring system of the LCD panel production line in this embodiment is as follows:

[0066] The charged state of the liquid crystal panel is detected by the first electrostatic detection unit 2; the upper computer 17 obtains the specified delay time according to the distance between the first electrostatic detection unit 2 and the electrostatic elimination unit 4 and the conveying speed of the conveyor belt of the liquid crystal panel production line; the control unit 1 controls the relay and the solenoid valve of the electrostatic elimination unit 4 to open at the specified delay time when the liquid crystal panel is charged, so that the discharge needle 7 carries a specified amount of positive charge or negative charge, and then blows the specified amount of positive charge or negative charge onto the liquid crystal panel through compressed air to neutralize the charge on the liquid crystal panel; the second electrostatic detection unit 3 detects the charged state of the liquid crystal panel again, and the control unit 1 transmits the re-detection signal to the upper computer 17, and the upper computer 17 can determine the working condition of the corresponding discharge needle in order to maintain and replace the discharge needle.

[0067] During the use of the electrostatic monitoring system of the liquid crystal panel production line, RFID electronic tags are set on the temperature sensor 12 and the humidity sensor 13, and the control unit 1 reads the signals of the temperature sensor 12 and the humidity sensor 13. The host computer matches the signals of the temperature sensor 12 and the humidity sensor 13 with the signals of the static electricity of the object to be detected according to the RFID tags; the host computer 17 is connected to the factory network according to the built-in APP, and then the fault trend prediction and the discharge needle life analysis of the ion rod and the data graphical display can be carried out.

[0068] In this embodiment, the control unit 1 controls the ion rod 9 to work at a specified delay time, thereby extending the overall working time of the discharge needle 7, thereby reducing the number of replacements of the ion rod 9, thereby reducing maintenance costs.

[0069] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process can be rearranged without departing from the scope of protection of the present disclosure. The attached method claims present the elements of the various steps in an exemplary order and are not intended to be limited to the specific order or hierarchy described.

[0070] In the above detailed description, various features are grouped together in a single embodiment to simplify the disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than are clearly stated in each claim. On the contrary, as reflected in the appended claims, the invention is in a state of having less than all the features of the disclosed individual embodiments. Therefore, the appended claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

[0071] The above description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but it should be recognized by those skilled in the art that the various embodiments may be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications and variations that fall within the scope of protection of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, the word is covered in a manner similar to the term "including", just as "including," is explained as a transitional word in the claims. In addition, any term "or" used in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. A static electricity monitoring system for a production line, characterized in that: include: A control unit, a first static electricity detection unit, a static electricity elimination unit, and a second static electricity detection unit arranged above the production line; The first electrostatic detection unit and the second electrostatic detection unit include at least two electrostatic sensors, each of which is configured to detect the charge of a specified area of ​​the object to be detected on the production line; The static elimination unit comprises an ion rod, a circuit control device, an air circuit and an air circuit control valve. When the circuit control device is turned on, the discharge needle of the ion rod discharges, and when the air circuit control valve is turned on, the air circuit works to blow the charge released by the discharge needle toward the object to be detected. A control unit, used to control the circuit control device and the gas path control valve of the static elimination unit to open when the amount of charge detected by at least one static sensor in the first static detection unit is not within a normal threshold range; And the detection results of each electrostatic sensor in the second electrostatic detection unit are provided to the host computer for display.

2. The system according to claim 1, wherein the arrangement direction of at least two electrostatic sensors in each electrostatic detection unit is perpendicular to the conveying direction of the conveyor belt of the production line; The number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the installation height of the electrostatic sensor relative to the production line; or the number of electrostatic sensors in each electrostatic detection unit is set according to the width of the production line and the detection range of the electrostatic sensor.

3. The system according to claim 1, characterized in that The electrostatic detection unit further comprises a first bracket, on which at least two mounting rods are arranged to mount the electrostatic sensor.

4. The system according to claim 1, characterized in that The static elimination unit further comprises a second bracket for mounting the ion rod; The circuit control device is electrically connected to the control unit and is turned on or off under the control of the control unit to supply power to the ion rod; The air path control valve is arranged on the air path of the static elimination unit and is electrically connected to the control unit. It is opened or closed under the control of the control unit to control the external air compression unit to supply air to the air path. The circuit control device is a relay, and the gas circuit control valve is a solenoid valve.

5. The system according to claim 1, wherein: The static electricity eliminating unit is disposed between the first static electricity detecting unit and the second static electricity detecting unit, and the second static electricity detecting unit is disposed in front of the first static electricity detecting unit.

6. The system according to any one of claims 1 to 5, characterized in that: Also includes: A temperature sensor is arranged above the production line, and the temperature sensor is electrically connected to the control unit; The control unit is used to transmit the temperature data collected by the temperature sensor to the host computer.

7. The system according to claim 6, characterized in that Also includes: A humidity sensor is arranged above the production line, and the humidity sensor is electrically connected to the control unit; The control unit is used to transmit the humidity data collected by the temperature sensor to the host computer.

8. The system according to claim 7, characterized in that Also includes: Host computer; The host computer is used to receive and display at least one of the charge data detected by the first electrostatic detection unit, the charge data detected by the second electrostatic detection unit, the temperature data, and the humidity data transmitted by the control unit.

9. The system according to claim 8, characterized in that The control unit is further used for: Based on the delay time provided by the host computer, the circuit control device and the air path control valve in the static elimination unit are controlled to delay opening; the delay time is set according to the distance between the first static detection unit and the static elimination unit.

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