Polyethylene film corona breakdown on-line monitoring equipment

Abstract

The invention discloses polyethylene film corona breakdown on-line monitoring equipment, and belongs to the technical field of polyethylene film on-line monitoring, the polyethylene film corona breakdown on-line monitoring equipment comprises a corona machine, the surface of a corona roller is slidably connected with two groups of electrode plates; the sliding unit is connected in the corona machine in a sliding manner; the distance adjusting unit is connected to the corona machine; the steering units are rotationally connected into the corona machine, and infrared scanners are installed on the two sets of steering units respectively; the fixing unit is rotationally connected to the end part of the steering unit; and the adjusting unit is rotationally connected to the two sets of steering units and used for driving the two sets of steering units to rotate reversely. Through cooperation of the fixing unit and the steering unit, the infrared scanners can continuously scan and monitor the polyethylene film, the production quality of the polyethylene film is improved, meanwhile, any group of infrared scanners can be repaired and maintained, the polyethylene film can be continuously produced, and the production cost of enterprises is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of polyethylene film online monitoring, in particular to a polyethylene film corona breakdown online monitoring device. Background Art

[0002] A Chinese patent (authorization announcement number: CN213896565U) discloses a laminated paper corona mechanism with monitoring function, specifically related to the field of laminated paper, including a base, a main frame fixedly installed on the top of the base, a chassis fixedly installed on both sides of the main frame, a guide plate fixedly installed on the top of the inner top of the main frame, and a corona roller fixedly installed above the guide plate inside the main frame. The patent sets a knob, a first screw, an electrode sheet and a retaining ring. When in use, the power supply in the chassis is started, the electrode sheet is energized, and then the laminated paper is corona treated by the corona roller. When the width of the laminated paper changes, the knobs at both ends of the corona roller can be turned to drive the electrode sheet to move through the first screw inside. The position of the electrode sheet adjustment corresponds to the width of the laminated paper, so that the corona roller is partially conductive and the resources used are reduced.

[0003] The laminated paper corona mechanism with monitoring function in the above technical solution has the following defects when in use: the infrared scanner is turned over by the turntable so that the brush plate can clean the surface of the scanner. However, in the process of cleaning the scanner, the scanner cannot continuously scan and monitor the polyethylene film due to the rotation of the scanner position, thereby reducing the production efficiency of the polyethylene film. Therefore, it is necessary to provide a polyethylene film corona breakdown online monitoring device to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, an object of the embodiments of the present invention is to provide an online monitoring device for corona breakdown of polyethylene film to solve the problems in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An online monitoring device for corona breakdown of polyethylene film, comprising: A corona machine, wherein a corona roller and two sets of guide rollers are rotatably connected inside the corona machine, the two sets of guide rollers are respectively located on both sides of the corona roller, and the surface of the corona roller is slidably connected with two sets of electrode sheets; A sliding unit is slidably connected in the corona machine, wherein two groups of sliding units are installed, and the two groups of sliding units are respectively connected to the two groups of electrode sheets; The distance adjustment unit is connected to the corona machine and is respectively connected to the two sets of sliding units, and is used to drive the two sets of sliding units to slide in opposite directions in the corona machine; The steering unit is rotatably connected inside the corona machine, and two sets of steering units are installed. Infrared scanners are respectively installed on the two sets of steering units. The fixing unit is rotatably connected to the end of the steering unit and is snap-fitted to the surface of the infrared scanner, and is used to cooperate with the steering unit to realize the fixing and disassembly of the infrared scanner. The adjusting unit is rotatably connected to the two sets of steering units and is used to drive the two sets of steering units to rotate in opposite directions.

[0006] As a preferred technical solution of the present invention, the sliding unit includes: a sliding rod, which is slidably connected inside the corona machine and has a fixing frame connected to its surface; a connecting frame, which is connected to the side of the fixing frame and has an end connected to the electrode plate.

[0007] As a preferred technical solution of the present invention, the distance adjusting unit includes: a bracket, which is fixed on the corona machine and has a device cylinder fixed to its inner wall; two sliding rods are respectively slidably connected inside the device cylinder; a driving member, which is installed at the end of the device cylinder; a driving shaft, which is rotatably connected inside the device cylinder and has an end connected to the output end of the driving member; an inclined circular wheel, which is installed on the surface of the driving shaft; a U-shaped frame, which is slidably connected inside the device cylinder and has an end connected to the sliding rod.

[0008] As a preferred technical solution of the present invention, two sets of spherical balls are respectively fixed on the inner walls of the U-shaped frame, and the two sets of spherical balls are respectively slidably connected to the two sides of the inclined circular wheel.

[0009] As a preferred technical solution of the present invention, the steering unit includes: a support frame, which is fixed inside the corona machine and has an arc-shaped frame connected to its surface; a steering shaft, which is rotatably connected to the arc-shaped frame, and steering frames are respectively installed at both ends, and the two sets of steering frames are respectively slidably connected to the surface of the arc-shaped frame; a base, which is fixed at the ends of the two sets of steering frames, and the surface is connected to the infrared scanner through a suction cup.

[0010] As a preferred technical solution of the present invention, the fixing unit includes; an arc-shaped groove, which is opened on the arc-shaped frame; a sliding groove, which is opened on the steering frame and has a sliding member slidably connected inside; a sliding column, which is fixed on the sliding member and has a surface slidably connected to the arc-shaped groove; a clamping frame, which is hinged on both sides of the base; an L-shaped frame, with one end hinged to the side of the sliding member and the other end hinged to the side of the clamping frame.

[0011] As a preferred technical solution of the present invention, the steering shaft is located above the center of the arc-shaped groove.

[0012] As a preferred technical solution of the present invention, the adjusting unit includes: an adjusting rod, which is rotatably connected to the arc-shaped frame, and one end surface of the adjusting rod is connected to the surface of a steering shaft through a transmission belt; a gear set, which is installed on the other end surface of the adjusting rod and the surface of the other steering shaft.

[0013] Compared with the prior art, the embodiments of the present invention have the following beneficial effects: when the corona position of the polyethylene film needs to be adjusted, the distance adjustment unit is turned on, and the sliding unit can drive the two groups of electrode sheets to slide in the opposite direction on the surface of the corona roller under the action of the distance adjustment unit, and then the actual corona length of the corona roller between the two groups of electrode sheets can be adjusted, so that the corona roller can meet the corona operation of polyethylene films of different specifications. When one group of infrared scanners fails or needs to be cleaned, the adjustment unit is rotated, and the adjustment unit can drive the two groups of steering units to rotate in the opposite direction. When one group of steering units drives the infrared scanner to rotate from a horizontal state to a vertical state, the fixing units will be separated from the surface of the infrared scanner respectively with the cooperation of the steering unit, so as to facilitate the maintenance of the infrared scanner.

[0014] Compared with the prior art in which the scanner cannot continuously scan and monitor the polyethylene film during the cleaning process, the embodiment of the present invention cooperates with the fixing unit and the steering unit so that the infrared scanner can continuously scan and monitor the polyethylene film, thereby improving the production efficiency of the polyethylene film. At the same time, any group of infrared scanners can also be repaired and maintained, so that the polyethylene film can be produced continuously, reducing the production cost of the enterprise.

[0015] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an online monitoring device for corona breakdown of polyethylene film provided in an embodiment of the present invention.

[0017] Figure 2 The figure is a schematic diagram of the internal structure of the corona machine provided in the embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the sliding unit provided in an embodiment of the present invention.

[0019] Figure 4 The figure is a schematic diagram of the structure of the distance adjustment unit provided in the embodiment of the present invention.

[0020] Figure 5 Schematic diagram of the internal structure of the device barrel provided in an embodiment of the present invention.

[0021] Figure 6 It is a schematic structural diagram of a steering unit provided in an embodiment of the present invention.

[0022] Figure 7 for Figure 6 A partial enlarged view of part A.

[0023] Figure 8 for Figure 6 A partial enlarged view of part B.

[0024] Figure numerals: 1. corona machine; 11. corona roller; 12. electrode sheet; 13. guide roller; 14. infrared scanner; 2. sliding unit; 21. slide rod; 22. fixed frame; 23. connecting frame; 3. distance adjustment unit; 31. bracket; 32. device cylinder; 33. driving member; 34. driving shaft; 35. inclined circular wheel; 36. L-shaped frame; 37. ball; 4. steering unit; 41. supporting frame; 42. arc frame; 43. steering shaft; 44. bogie; 45. base; 5. fixed unit; 51. arc groove; 52. slide groove; 53. sliding member; 54. sliding column; 55. L-shaped frame; 56. clamping frame; 6. adjustment unit; 61. adjustment rod; 62. gear set. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] See also Figures 1 to 8 , a polyethylene film corona breakdown online monitoring device, comprising: A corona machine 1, wherein a corona roller 11 and two sets of guide rollers 13 are rotatably connected inside the corona machine 1, the two sets of guide rollers 13 are respectively located on both sides of the corona roller 11, and two sets of electrode sheets 12 are slidably connected to the surface of the corona roller 11; A sliding unit 2 is slidably connected in the corona machine 1. Two groups of sliding units 2 are installed, and the two groups of sliding units 2 are respectively connected to the two groups of electrode sheets 12; The distance adjustment unit 3 is connected to the corona machine 1 and is respectively connected to the two sets of sliding units 2, and is used to drive the two sets of sliding units 2 to slide in opposite directions in the corona machine 1; A steering unit 4 is rotatably connected to the corona machine 1, and two groups of steering units 4 are installed, and infrared scanners 14 are installed on the two groups of steering units 4 respectively; The fixing unit 5 is rotatably connected to the end of the steering unit 4 and is engaged with the surface of the infrared scanner 14, and is used to cooperate with the steering unit 4 to achieve the fixing and removal of the infrared scanner 14; The adjusting unit 6 is rotatably connected to the two groups of steering units 4, and is used to drive the two groups of steering units 4 to rotate in opposite directions.

[0028] In an embodiment of the present invention, when it is necessary to adjust the corona position of the polyethylene film, the distance adjusting unit 3 is turned on, and the sliding unit 2 can drive the two groups of electrode sheets 12 to slide in the opposite direction on the surface of the corona roller 11 under the action of the distance adjusting unit 3, and then the actual corona length of the corona roller 11 between the two groups of electrode sheets 12 can be adjusted, so that the corona roller 11 can meet the corona operation of polyethylene films of different specifications.

[0029] When one of the infrared scanners 14 fails, the adjusting unit 6 is rotated, and the adjusting unit 6 can drive the two steering units 4 to rotate in the opposite direction. When one steering unit 4 drives the infrared scanner 14 to rotate from a horizontal state to a vertical state, the fixing units 5 will be separated from the surface of the infrared scanner 14 with the cooperation of the steering unit 4, which is convenient for repairing the infrared scanner 14. When the other steering unit 4 drives the infrared scanner 14 to rotate from a vertical state to a horizontal state, the two fixing units 5 will be folded to the surface of the infrared scanner 14, which improves the stability of the infrared scanner 14 after being installed on the steering unit 4. In this process, any group of infrared scanners 14 can be repaired and maintained, so that the polyethylene film can be continuously corona treated, reducing the production cost of the enterprise.

[0030] In one embodiment of the present invention, Figure 3 and Figure 4 As shown, the sliding unit 2 includes: A slide bar 21 is slidably connected in the corona machine 1, and a fixing frame 22 is connected to the surface thereof; The connecting frame 23 is connected to the side of the fixing frame 22 , and the end thereof is connected to the electrode sheet 12 .

[0031] In this embodiment, the slide rod 21, the fixing frame 22 and the connecting frame 23 are respectively installed in two groups, and the two groups of slide rods 21 are respectively connected to the distance adjustment unit 3. The corona roller 11 is used to perform corona treatment on the polyethylene film, and the part of the corona roller 11 between the two groups of electrode sheets 12 is the effective corona treatment part.

[0032] When corona treatment is performed on the polyethylene film, firstly, one end of the polyethylene film is passed from top to bottom through the gap between one group of guide rollers 13 and the corona roller 11, and then passed from bottom to top through the gap between another group of guide rollers 13 and the corona roller 11. The corona machine 1 is turned on so that the part of the corona roller 11 between the two groups of electrode sheets 12 performs corona operation on the polyethylene film.

[0033] When the specifications of the polyethylene film change, by adjusting the distance-adjusting unit 3, the distance-adjusting unit 3 can drive the two groups of sliding rods 21 to slide reversely in the corona machine 1 through the connection with the two groups of sliding rods 21. When the two groups of sliding rods 21 slide, they can drive the connecting frame 23 to slide synchronously and reversely through the fixing frame 22, so that the two connecting frames 23 can drive the two electrode plates 12 to slide reversely on the surface of the corona roller 11, and further adjust the actual corona length of the corona roller 11 between the two electrode plates 12.

[0034] In an embodiment of the present invention, as Figure 4 and Figure 5 shown, the distance-adjusting unit 3 includes: A bracket 31, fixed on the corona machine 1, with a device cylinder 32 fixed on the inner wall, and the two groups of sliding rods 21 are respectively slidably connected in the device cylinder 32; A driving member 33, installed at the end of the device cylinder 32; A driving shaft 34, rotatably connected in the device cylinder 32, and the end is connected to the output end of the driving member 33; An inclined round wheel 35, installed on the surface of the driving shaft 34; A C-shaped frame 36, slidably connected inside the device cylinder 32, and the end is connected to the sliding rod 21; A spherical ball 37, connected to the inner walls of both ends of the C-shaped frame 36, and the spherical ball 37 is slidably connected to both sides of the inclined round wheel 35.

[0035] In this embodiment, both ends of the inclined round wheel 35 are parallel inclined surfaces. Specifically, the two ends are cut along the direction inclined to the end of the round wheel to obtain the inclined round wheel 35.

[0036] When it is necessary to adjust the corona position of the polyethylene film, the driving member 33 is turned on. The output end of the driving member 33 can drive the inclined round wheel 35 to rotate in the device cylinder 32 through the driving shaft 34. When the position of the inclined round wheel 35 changes, the spherical ball 37 drives the two groups of C-shaped frames 36 to slide reversely in the device cylinder 32 under the push of the inclined round wheel 35. Then, the two groups of C-shaped frames 36 respectively drive the two groups of sliding rods 21 to slide reversely in the device cylinder 32. When the two groups of sliding rods 21 slide, they drive the connecting frame 23 to slide synchronously and reversely through the fixing frame 22, so that the two connecting frames 23 drive the two electrode plates 12 to slide reversely on the surface of the corona roller 11, and further adjust the actual corona length of the corona roller 11 between the two electrode plates 12, so that the corona roller 11 can meet the corona operations of polyethylene films of different specifications.

[0037] The driving member 33 can adopt a servo motor or a stepper motor to drive the driving shaft 34 to rotate stably in the device cylinder 32.

[0038] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the steering unit 4 includes: A support frame 41 is fixed inside the corona machine 1 and has an arc frame 42 connected to its surface; The steering shaft 43 is rotatably connected to the arc frame 42, and the two ends are respectively provided with steering frames 44, and the two sets of steering frames 44 are respectively slidably connected to the surface of the arc frame 42; The base 45 is fixed to the ends of the two sets of bogies 44, and the surface is connected to the infrared scanner 14 through a suction cup.

[0039] In this embodiment, during the corona treatment of the polyethylene film, the infrared scanner 14 is started to scan and monitor the surface of the polyethylene film to detect whether the polyethylene film is normally transmitted and corona treated between the corona roller 11 and the guide roller 13.

[0040] like Figure 1 As shown, the infrared scanner 14 is installed with two groups. When one of the infrared scanners 14 fails or needs to be cleaned, the adjustment unit 6 can be rotated, and the adjustment unit 6 can drive the two steering shafts 43 to rotate in the opposite direction on the corresponding arc frame 42. When the two steering shafts 43 rotate in the opposite direction on the arc frame 42, they can drive the two steering racks 44 to rotate in the opposite direction synchronously, so that the two steering racks 44 can drive the two bases 45 to rotate in the opposite direction, and then the two bases 45 can drive the two infrared scanners 14 to rotate in the opposite direction. Figure 6 As shown, a group of infrared scanners 14 in a horizontal state is in a normal working state, while another group of infrared scanners 14 in a vertical state is in a state of waiting for maintenance.

[0041] Through the cooperation of the adjustment unit 6 and the steering unit 4, a group of infrared scanners 14 in a horizontal state can be rotated upward to a vertical state, while another group of infrared scanners 14 in a vertical state can be rotated downward to a horizontal state, so that any group of infrared scanners 14 can be easily repaired and maintained, so that the polyethylene film can be continuously corona treated, reducing the production cost of the enterprise.

[0042] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the fixing unit 5 includes: The arc groove 51 is provided on the arc frame 42; A slide groove 52 is provided on the bogie 44 and is slidably connected with a slide member 53 inside; The sliding column 54 is fixed on the sliding member 53, and its surface is slidably connected with the arc groove 51; A clamping frame 56 is hinged on both sides of the base 45; The L-shaped frame 55 has one end hinged to the side of the sliding member 53 and the other end hinged to the side of the clamping frame 56 .

[0043] In this embodiment, when the adjustment unit 6 drives the two groups of steering shafts 43 to rotate in the opposite direction on the corresponding arc frame 42, the two groups of steering shafts 43 can respectively drive the two groups of bogies 44 to rotate in the opposite direction synchronously. At the same time, when the two groups of bogies 44 rotate in the opposite direction, they can drive the two groups of sliding parts 53 inside them to rotate in the opposite direction synchronously through the slide groove 52.

[0044] like Figure 7 As shown, the infrared scanner 14 is placed on the surface of the base 45, and the infrared scanner 14 is initially fixed by the suction cup on the surface of the base 45. When the steering shaft 43 drives the bogie 44 to turn counterclockwise from the vertical state to the horizontal state, the bogie 44 can drive the sliding member 53 inside it to rotate counterclockwise synchronously through the sliding groove 52. Since the surface of the sliding column 54 on the sliding member 53 is slidably connected with the arc groove 51, the group of sliding members 53 can drive the sliding column 54 on its surface to slide counterclockwise in the arc groove 51.

[0045] like Figure 7 As shown, because the steering shaft 43 is located above the center of the arc groove 51, the sliding column 54 drives the sliding member 53 to slide upward (towards the direction close to the base 45) in the sliding groove 52 under the action of the arc groove 51 during the process of the sliding column 54 sliding counterclockwise in the arc groove 51. During the sliding process of the sliding member 53 in the sliding groove 52, the two groups of clamping frames 56 can be respectively pushed to rotate on the base 45 through the two groups of L-shaped frames 55.

[0046] When the steering shaft 43 drives the bogie 44 to rotate counterclockwise from the vertical state to the horizontal state, the sliding member 53 pushes the two sets of clamping frames 56 to fold on the base 45 through the two sets of L-shaped frames 55 until the bogie 44 rotates to the horizontal state (such as Figure 8 As shown), at this time, the two groups of clamping frames 56 are folded to the surface of the infrared scanner 14 respectively, so that the infrared scanner 14 is clamped and fixed under the action of the two groups of clamping frames 56, thereby improving the stability of the infrared scanner 14 after installation on the base 45.

[0047] like Figure 8As shown, when the steering shaft 43 drives the steering rack 44 to rotate clockwise from the horizontal state to the vertical state, the steering rack 44 will drive the sliding member 53 to rotate clockwise through the slide groove 52, and then the sliding member 53 will drive the sliding column 54 to rotate clockwise in the arc groove 51. In this process, because the steering shaft 43 is located above the center of the arc groove 51, the sliding column 54 drives the sliding member 53 to slide downward (away from the base 45) in the slide groove 52 under the action of the arc groove 51, so that the sliding member 53 pushes the two groups of clamping frames 56 to open on the base 45 through the two groups of L-shaped frames 55, until the steering rack 44 rotates to the vertical state (as shown in FIG. Figure 7 As shown), at this time, the two sets of clamping frames 56 will be separated from the surface of the infrared scanner 14, thereby facilitating the removal of the infrared scanner 14 from the surface of the base 45 and facilitating the maintenance of the infrared scanner 14.

[0048] In one embodiment of the present invention, Figure 7 and Figure 8 As shown, the adjustment unit 6 includes: An adjusting rod 61 is rotatably connected to the arc frame 42, and a surface of one end of the adjusting rod 61 is connected to a surface of a set of steering shafts 43 through a transmission belt; The gear set 62 is installed on the end of the adjusting rod 61 away from the transmission belt and the surface of the other set of steering shafts 43.

[0049] In this embodiment, the gear set 62 is specifically two sets of gears, one set of gears is installed at the end of the adjustment rod 61, and the other set of gears is installed on the surface of the other set of steering shafts 43. Therefore, when the adjustment rod 61 is rotated, the steering shafts 43 connected by the transmission belt will rotate in the same direction, and the steering shafts 43 connected by the gear set 62 will rotate in the opposite direction. That is to say, when the adjustment rod 61 is rotated, the two steering shafts 43 must rotate in the opposite direction, so the two steering racks 44 will also rotate in the opposite direction.

[0050] With the cooperation of the steering unit 4 and the fixing unit 5, when one set of steering racks 44 drives the infrared scanner 14 to rotate clockwise from a horizontal state to a vertical state through the base 45, the two sets of clamping racks 56 will be separated from the surface of the infrared scanner 14, making it convenient to repair the infrared scanner 14. At the same time, when another set of steering racks 44 drives the infrared scanner 14 to rotate counterclockwise from a vertical state to a horizontal state through the base 45, the two sets of clamping racks 56 will be folded to the surface of the infrared scanner 14, improving the stability of the infrared scanner 14 after being installed on the base 45. In this process, any set of infrared scanners 14 can be repaired and maintained, so that the polyethylene film can be continuously corona treated, reducing the production cost of the enterprise.

[0051] The working principle of the present invention is as follows: When it is necessary to adjust the corona position of the polyethylene film, the driving member 33 is turned on. The output end of the driving member 33 drives the inclined round wheel 35 to rotate in the device cylinder 32 through the driving shaft 34. After the position of the inclined round wheel 35 changes, the spherical ball 37 will drive the two C-shaped frames 36 to slide reversely in the device cylinder 32 under the push of the inclined round wheel 35. Furthermore, the two C-shaped frames 36 will respectively drive the two sliding rods 21 to slide reversely in the device cylinder 32. When the two sliding rods 21 slide, they can drive the connecting frame 23 to slide synchronously and reversely through the fixing frame 22. Thus, the two connecting frames 23 can drive the two electrode plates 12 to slide reversely on the surface of the corona roller 11, and then the actual corona length of the corona roller 11 between the two electrode plates 12 can be adjusted, so that the corona roller 11 can meet the corona operation requirements of polyethylene films of different specifications.

[0052] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "coupling" 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, an electrical connection or a connection that allows mutual communication; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A polyethylene film corona breakdown online monitoring device, characterized in that: The polyethylene film corona breakdown online monitoring device comprises: A corona machine (1), wherein a corona roller (11) and two groups of guide rollers (13) are rotatably connected inside the corona machine (1), the two groups of guide rollers (13) are respectively located on both sides of the corona roller (11), and the surface of the corona roller (11) is slidably connected with two groups of electrode sheets (12); A sliding unit (2) is slidably connected in the corona machine (1), wherein two groups of sliding units (2) are installed, and the two groups of sliding units (2) are respectively connected to the two groups of electrode sheets (12); The distance adjustment unit (3) is connected to the corona machine (1) and is respectively connected to the two sets of sliding units (2) and is used to drive the two sets of sliding units (2) to slide in opposite directions in the corona machine (1); A steering unit (4) is rotatably connected to the corona machine (1), and two groups of steering units (4) are installed, and infrared scanners (14) are respectively installed on the two groups of steering units (4); The fixing unit (5) is rotatably connected to the end of the steering unit (4) and is snap-connected to the surface of the infrared scanner (14) for cooperating with the steering unit (4) to achieve the fixing and removal of the infrared scanner (14). The fixing unit (5) comprises: an arc groove (51) provided on the arc frame (42); a slide groove (52) provided on the steering frame (44) and having a sliding member (53) slidably connected therein; a sliding column (54) fixed on the sliding member (53) and having a surface slidably connected to the arc groove (51); a clamping frame (56) hinged on both sides of the base (45); an L-shaped frame (55) having one end hinged on the side of the sliding member (53) and the other end hinged on the side of the clamping frame (56); The adjustment unit (6) is rotatably connected to the two groups of steering units (4) and is used to drive the two groups of steering units (4) to rotate in opposite directions.

2. The polyethylene film corona breakdown online monitoring device according to claim 1, characterized in that: The sliding unit (2) comprises: A slide bar (21) is slidably connected in the corona machine (1) and has a fixed frame (22) connected to its surface; The connecting frame (23) is connected to the side of the fixing frame (22), and the end portion is connected to the electrode sheet (12).

3. The polyethylene film corona breakdown online monitoring device according to claim 2, characterized in that: The distance adjustment unit (3) comprises: The bracket (31) is fixed on the corona machine (1), and a device cylinder (32) is fixed on the inner wall. Two sets of sliding rods (21) are respectively slidably connected in the device cylinder (32); A driving member (33) mounted on the end of the device cylinder (32); A driving shaft (34) is rotatably connected in the device cylinder (32), and an end portion is connected to an output end of the driving member (33); An inclined circular wheel (35) is mounted on the surface of the driving shaft (34); The molded frame (36) is slidably connected inside the device cylinder (32), and the end portion is connected to the slide rod (21).

4. The polyethylene film corona breakdown online monitoring device according to claim 3 is characterized in that: Two groups of balls (37) are fixed to the inner wall of the molded frame (36), and the two groups of balls (37) are slidably connected to the two sides of the inclined circular wheel (35).

5. The polyethylene film corona breakdown online monitoring device according to claim 1, characterized in that: The steering unit (4) comprises: A support frame (41) is fixed inside the corona machine (1) and has an arc frame (42) connected to its surface; A steering shaft (43) is rotatably connected to the arc frame (42), and bogies (44) are respectively installed at both ends. Two sets of bogies (44) are respectively slidably connected to the surface of the arc frame (42); The base (45) is fixed to the ends of the two groups of bogies (44), and the surface is connected to the infrared scanner (14) through a suction cup.

6. The polyethylene film corona breakdown online monitoring device according to claim 5, characterized in that: The steering shaft (43) is located above the center of the arc-shaped groove (51).

7. The polyethylene film corona breakdown online monitoring device according to claim 5, characterized in that: The regulating unit (6) comprises: An adjusting rod (61) is rotatably connected to the arc frame (42), and a surface of one end of the adjusting rod (61) is connected to a surface of a group of steering shafts (43) through a transmission belt; The gear set (62) is mounted on the end of the adjusting rod (61) away from the transmission belt and the surface of the other set of steering shafts (43).

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