Corona machine control device

Abstract

The utility model discloses a corona machine control device which comprises a switch assembly and a monitoring assembly, and the switch assembly is used for controlling power supply of a corona machine; the monitoring assembly comprises a current monitor and an operation control module, the current monitor is electrically connected with the operation control module, and the operation control module is electrically connected with the switch assembly to control the switch assembly; wherein the switch assembly is connected with the first power supply circuit, the monitoring assembly is connected with the second power supply circuit, and the monitoring assembly supplies power independently. The monitoring assembly is independently powered, and the work of the monitoring assembly is not affected when the corona machine breaks down.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic film corona treatment, especially relates to a corona machine control device. BACKGROUND

[0002] In the plastic film production process, it may involve processes such as printing, bonding, sealing, etc. These processes require the film surface to have certain adhesion. After the blow molding process, the plastic forms a plastic film state, at which time the adhesion of the plastic film surface is weak, and corona treatment is needed to improve the surface adhesion of the plastic film and improve the processing quality and efficiency of the subsequent process. Corona treatment is generally achieved through a corona machine, which includes a winding roller and a discharge electrode. The winding roller is used to wind the plastic film to move the plastic film, and the discharge electrode is used to discharge the plastic film surface to produce a corona phenomenon. In the corona process, the current of the discharge electrode needs to be monitored in real time. When the current is too large, timely intervention is made through the corona machine control device to avoid causing a fire. When the existing corona machine fails, the voltage and current may change, and in severe cases, the current monitoring mechanism in the corona machine control device may also fail, resulting in the inability to monitor and record current data and send alarm information, which prevents the control device from timely disconnecting the power supply of the corona machine discharge electrode, affecting the full and effective implementation of the corona machine safety protection mechanism, and posing a safety hazard. SUMMARY

[0003] The utility model aims at least to solve one of the technical problems existing in the prior art. To this end, the utility model provides a corona machine control device, which is powered independently of the monitoring assembly, and the failure of the corona machine does not affect the operation of the monitoring assembly.

[0004] According to the corona machine control device of the utility model embodiment, comprising:

[0005] The switch assembly is used to control the power supply of the corona machine.

[0006] The monitoring assembly includes a current monitor and an operation control module. The current monitor is electrically connected to the operation control module, and the operation control module is electrically connected to the switch assembly to control the switch assembly.

[0007] The switch assembly is connected to the first power supply line, and the monitoring assembly is connected to the second power supply line. The monitoring assembly is powered independently.

[0008] According to an embodiment of the present invention, a corona machine control device has at least the following beneficial effects: the current monitor is electrically connected to the arithmetic control module, and the discharge electrode current value monitored by the current monitor can be transmitted to the arithmetic control module. The arithmetic control module can set upper and lower limits for the current and can determine whether the current is within the normal range through logical operations, thereby realizing automatic monitoring of the discharge electrode current and determining whether the current value is within the normal range. When the discharge electrode current value is not within the normal range, the arithmetic control module issues an abnormality prompt. When the discharge electrode current exceeds the set upper limit, it can also send a control signal to the switching component to control the switching component to disconnect the discharge electrode power supply. The monitoring component is powered by a separate power supply line. When the corona machine malfunctions, the monitoring component can work normally, continuously monitor and record current data, perform logical judgments, and promptly control the switching component to disconnect the discharge electrode power supply, ensuring production safety.

[0009] According to an embodiment of the present invention, a corona machine control device is provided with a power protection switch for the first power supply line and the second power supply line.

[0010] According to an embodiment of the present invention, a corona machine control device is provided in which a second power supply line is also provided with an uninterruptible power supply, which is located between the monitoring component and the power protection switch.

[0011] According to an embodiment of the present invention, a corona machine control device includes a switch assembly comprising a first switch module and a second switch module. The first switch module is used to control the take-up roller of the corona machine, and the second switch module is used to control the discharge electrode of the corona machine.

[0012] According to an embodiment of the present invention, a corona machine control device includes a second switch module comprising a manual operation mechanism and an electric operation mechanism, wherein the electric operation mechanism is electrically connected to the calculation control module.

[0013] According to an embodiment of the present invention, a corona machine control device has a manual operation mechanism that is a rotary adjustment switch to adjust the discharge current of the corona machine.

[0014] According to an embodiment of the present invention, a corona machine control device has two switch components.

[0015] According to an embodiment of the present invention, a corona machine control device includes an industrial control touch screen as the arithmetic control module. The signal input terminal of the industrial control touch screen is electrically connected to a current monitor, and the signal output terminal of the industrial control touch screen is electrically connected to a switch assembly.

[0016] According to an embodiment of the present invention, a corona machine control device includes a monitoring component that further includes an alarm, which is electrically connected to an industrial control touch screen.

[0017] According to an embodiment of the present invention, a corona machine control device includes a monitoring component that further includes a digital display, which is electrically connected to an industrial control touch screen.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a corona machine control device according to an embodiment of the present invention;

[0021] Explanation of reference numerals in the attached figures:

[0022] Switch assembly 100; first switch module 110; second switch module 120; manual operating mechanism 121; electric operating mechanism 122;

[0023] Monitoring component 200; current monitor 210; arithmetic control module 220; alarm 230; digital display 240;

[0024] First power supply line 300;

[0025] Second power supply line 400; Uninterruptible power supply 410;

[0026] 500 power protection switch;

[0027] Emergency stop module 600;

[0028] Control status indicator light 700;

[0029] 800 racks. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] In the production of plastic film, the surface adhesion of the plastic film after the blow molding process is relatively weak, requiring corona treatment to improve the surface adhesion and enhance the processing quality and efficiency of subsequent printing, bonding, and sealing processes. Corona treatment is generally achieved using a corona treatment machine, which generates a corona phenomenon through discharge electrodes. This discharge process produces electrical sparks and ozone, therefore, a control device is typically required for remote control of the corona treatment machine, and operators must remain away from it.

[0035] Reference Figure 1This utility model provides a corona machine control device, including a switch assembly 100 and a monitoring assembly 200. The switch assembly 100 and the monitoring assembly 200 are mounted on a cabinet 800. The switch assembly 100 is electrically connected to the corona machine (not shown) via a cable to control the power supply of the corona machine. The actual distance between the switch assembly 100 and the corona machine is generally far to ensure the safety of the operator. The monitoring assembly 200 includes a current monitor 210 and a calculation control module 220. The induction coil of the current monitor 210 is installed at the discharge electrode of the corona machine to monitor the current at the discharge electrode. The current monitor 210 is electrically connected to the calculation control module 220, and the calculation control module 220 is electrically connected to the switch assembly 100. The calculation control module 220 collects the discharge electrode current signal sent by the current monitor 210, makes a logical judgment, and controls the action of the switch assembly 100 according to the judgment result. The switch assembly 100 is connected to a first power supply line 300, and the monitoring assembly 200 is connected to a second power supply line 400. The monitoring assembly 200 is powered independently.

[0036] The current monitor 210 is electrically connected to the arithmetic control module 220. The discharge electrode current signal monitored by the current monitor 210 can be transmitted to the arithmetic control module 220. After the arithmetic control module 220 sets the upper and lower current limits, it can determine whether the current is within the normal range through logical operations, thereby automatically monitoring the discharge electrode current and determining whether the current value is within the normal range. The arithmetic control module 220 is electrically connected to the switching assembly 100. The arithmetic control module 220 sends control signals to the switching assembly 100 according to the logical judgment results to control the operation of the switching assembly 100.

[0037] The switching assembly 100 is connected to the first power supply line 300, and the monitoring assembly 200 is connected to the second power supply line 400. The first power supply line 300 and the second power supply line 400 are each connected to the mains power line. Since the monitoring assembly 200 is powered independently, when the corona treatment machine malfunctions, for example, when the discharge current is too high due to a discharge electrode malfunction, both the switching assembly 100 and the first power supply line 300 will experience excessive current. However, the second power supply line 400 will be minimally affected. Therefore, the monitoring assembly 200 can continue to operate normally, continuously monitoring and recording current data. The calculation and control module 220 can also perform logical judgments normally and promptly send control signals to the switching assembly 100 to disconnect the discharge electrode power supply. This prevents the discharge electrode from continuously applying high temperatures to the plastic film due to a discharge electrode malfunction, thus avoiding a fire and ensuring production safety. When the discharge electrode current is detected to be lower than the set lower limit, the corona-treated plastic film cannot meet the predetermined requirements. At this time, the calculation and control module 220 will promptly issue an abnormality warning to prevent defective products from flowing into the next process.

[0038] According to some embodiments of this application, the first power supply line 300 and the second power supply line 400 are respectively equipped with power protection switches 500 to further enhance the safety guarantee when the line fails.

[0039] Furthermore, the second power supply line 400 is also equipped with an uninterruptible power supply 410, which is located between the monitoring component 200 and the power protection switch 500, further improving the power stability of the second power supply line 400 and ensuring the stable operation of the monitoring component 200.

[0040] Furthermore, the switching assembly 100 includes a first switching module 110 and a second switching module 120. The first switching module 110 controls the take-up roller of the corona treatment machine, and the second switching module 120 controls the discharge electrode of the corona treatment machine. The take-up roller and the discharge electrode are controlled separately. During operation, the take-up roller is started first by the first switching module 110, and the discharge electrode is started by the second switching module 120 after the film reaches its running speed. This prevents electrical sparks from concentrating on a single point on the plastic film and thus avoids the film from catching fire.

[0041] Furthermore, the second switch module 120 includes a manual operating mechanism 121 and an electric operating mechanism 122. The electric operating mechanism 122 is electrically connected to the computational control module 220. During normal production, the operator can control the discharge electrode of the corona machine through the manual operating mechanism 121. When the corona machine malfunctions, the computational control module 220 can control the electric operating mechanism 122 to disconnect the power supply to the discharge electrode. Specifically, the electric operating mechanism 122 is a normally closed relay. The first power supply line 300, the manual operating mechanism 121, the normally closed relay, and the discharge electrode of the corona machine are electrically connected in sequence. The control terminal of the normally closed relay is electrically connected to the output terminal of the computational control module 220. The computational control module 220 can control the normally closed relay to open by sending a signal, thereby disconnecting the power supply to the discharge electrode of the corona machine.

[0042] Furthermore, the manual operating mechanism 121 is a rotary adjustment switch, which can adjust the magnitude of the discharge electrode current of the corona machine, thereby achieving fine adjustment of the discharge electrode current.

[0043] Furthermore, there are two switch components 100. The corona machine includes a front take-up roller and a rear take-up roller. The front take-up roller and the rear take-up roller are respectively equipped with discharge electrodes. The two switch components 100 control the start and stop of the front take-up roller and the rear take-up roller, and control the current of the corresponding two discharge electrodes.

[0044] It should be noted that in some embodiments, the cabinet 800 is also equipped with a control status indicator light 700 and a control status monitoring module (not shown in the figure). There are two sets of control status indicator lights 700. The control status monitoring module monitors the status of the switch assembly 100 in real time and displays the status through the control status indicator lights 700.

[0045] According to some embodiments of this application, the operation control module 220 is an industrial control touch screen. The signal input terminal of the industrial control touch screen is electrically connected to the current monitor 210, and the signal output terminal of the industrial control touch screen is electrically connected to the switch assembly 100. The industrial control touch screen continuously monitors the current of the corona discharge electrode, records the data, and generates a current curve. The industrial control touch screen can also easily set upper and lower current limits. When the current is higher than the upper limit or lower than the lower limit, an alarm prompt is displayed on the screen of the industrial control touch screen. It can also save alarm records and current curves for easy retrieval later.

[0046] Furthermore, the monitoring component 200 also includes an alarm 230, which is electrically connected to the industrial control touch screen. Specifically, the alarm 230 is an audible and visual alarm, and two alarms are provided to display the alarm status of the front take-up roll unloading electrode and the rear take-up roll unloading electrode, respectively. When the alarm receives an alarm signal from the industrial control touch screen, it emits an alarm sound and flashes an alarm light.

[0047] Furthermore, the monitoring component 200 also includes a digital display 240, which is electrically connected to an industrial control touchscreen. The industrial control touchscreen can transmit the real-time current data of the corona discharge electrode to the digital display 240 for real-time display, allowing operators to understand the discharge status promptly. Specifically, there are two digital displays 240, which respectively display the current values ​​of the front take-up roller discharge electrode and the rear take-up roller discharge electrode.

[0048] It should be noted that in some embodiments, the cabinet 800 is also equipped with an emergency stop module 600 so that the operator can manually disconnect the power supply to the corona machine take-up roller and the unloading electrode simultaneously in an emergency.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A corona machine control device, characterized by, The utility model relates to a kind of corona machine power supply control system, including: Switching assembly (100) for controlling corona machine power supply; Monitoring assembly (200) including current monitor (210) and arithmetic control module (220), the current monitor (210) is electrically connected with the arithmetic control module (220), the arithmetic control module (220) is electrically connected with the switching assembly (100), to control the switching assembly (100); Wherein, the switching assembly (100) is connected with first power supply line (300), the monitoring assembly (200) is connected with second power supply line (400), and the monitoring assembly (200) is powered separately.

2. A corona treater control device according to claim 1, wherein The first power supply line (300) and the second power supply line (400) are respectively provided with power supply protection switch (500).

3. A corona treater control device according to claim 2, wherein The second power supply line (400) is further provided with uninterrupted power supply (410), and the uninterrupted power supply (410) is arranged between the monitoring assembly (200) and the power supply protection switch (500).

4. A corona treater control device according to claim 3, wherein The switching assembly (100) includes first switch module (110) and second switch module (120), the first switch module (110) is used to control the winding roller of the corona machine, and the second switch module (120) is used to control the discharge electrode of the corona machine.

5. A corona treater control device according to claim 4, wherein The second switch module (120) includes manual operating mechanism (121) and electric operating mechanism (122), and the electric operating mechanism (122) is electrically connected with the arithmetic control module (220).

6. A corona treater control device according to claim 5, wherein The manual operating mechanism (121) is knob adjustment switch, to adjust the discharge electrode current size of the corona machine.

7. A corona treater control device according to claim 6, wherein The switching assembly (100) is provided with two.

8. The control device for a corona machine according to claim 1, wherein The arithmetic control module (220) is industrial control touch screen, and the signal input end of the industrial control touch screen is electrically connected with the current monitor (210), and the signal output end of the industrial control touch screen is electrically connected with the switching assembly (100).

9. A corona treater control device according to claim 8, wherein The monitoring assembly (200) further includes alarm (230), and the alarm (230) is electrically connected with the industrial control touch screen.

10. A corona treater control device according to claim 9, wherein The monitoring assembly (200) further includes digital display (240), and the digital display (240) is electrically connected with the industrial control touch screen.

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