Corona rack capable of reducing ozone emission

Abstract

The utility model discloses a corona machine frame capable of reducing ozone emission. The corona machine frame comprises a machine base, a box shell assembly, a lifting driver and an exhaust assembly. The box shell assembly is arranged on the machine base and comprises a lower box shell and an upper box shell, the upper box shell is arranged on the machine base in a liftable mode and can be close to or away from the lower box shell, a corona cavity is defined by the lower box shell and the upper box shell, and the rear side box wall of the lower box shell and the rear side box wall of the upper box shell are arranged in an up-down spaced mode and form a film inlet gap. The front side box wall of the lower box shell and the front side box wall of the upper box shell are arranged in an up-down spaced mode and form a film outlet gap, the film inlet gap and the film outlet gap are both communicated with the corona cavity, one of the upper box shell and the lower box shell is provided with an electrode installation position, the other one of the upper box shell and the lower box shell is provided with a roller body installation position, and the electrode installation position and the roller body installation position are both located in the corona cavity; the lifting driver is arranged between the machine base and the upper box shell and used for driving the upper box shell to ascend and descend. The exhaust assembly is arranged on the machine base and communicates with the corona cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to a corona machine, especially a corona rack capable of reducing ozone emission. BACKGROUND

[0002] In the production process of plastic film, a corona machine is needed to perform corona discharge to improve the surface performance of the film. In the corona process, the gases in the air, such as nitrogen and oxygen, are ionized to generate plasma. The ozone component in the plasma has a strong odor and is harmful to the human body, affecting the safety of the working environment. The existing corona machine includes a corona rack and one or two corona components inside. The corona component includes a high-voltage electrode and a dielectric barrier roller. When single-sided corona discharge is performed, one corona component is provided. When double-sided corona discharge is performed, two corona components are provided, and the installation positions of the two corona components are opposite. The corona rack includes a base, an upper mounting rack, a lower mounting rack, and a lifting driver. The high-voltage electrode and the dielectric barrier roller are respectively mounted on the upper mounting rack and the lower mounting rack. The position of the upper mounting rack can be adjusted by the lifting driver to adjust the distance between the high-voltage electrode and the dielectric barrier roller, satisfying different corona discharge requirements. The upper mounting rack and the lower mounting rack are usually of an open structure. An exhaust hood and an exhaust component are provided to suck the ozone generated during the corona process and discharge it to a designated position. However, the existing corona machine generates and discharges a large amount of ozone, which is not conducive to environmental protection, and the ozone is relatively easy to overflow into the production site, posing a safety hazard. SUMMARY

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a corona rack capable of reducing ozone emission, which can reduce the total amount of ozone generation and discharge and reduce the risk of ozone overflowing into the production site.

[0004] The corona rack capable of reducing ozone emission according to the utility model embodiment includes a base, a box shell component, a lifting driver, and an exhaust component. The box shell component is provided on the base. The box shell component includes a lower box shell and an upper box shell. The upper box shell is provided on the base in a liftable manner and can be close to or away from the lower box shell. The lower box shell and the upper box shell enclose a corona cavity. The rear side wall of the lower box shell and the rear side wall of the upper box shell are provided in an up-down interval and form an inlet film gap. The front side wall of the lower box shell and the front side wall of the upper box shell are provided in an up-down interval and form an outlet film gap. The inlet film gap and the outlet film gap are both in communication with the corona cavity. One of the upper box shell and the lower box shell is provided with an electrode mounting position, and the other is provided with a roller body mounting position. The electrode mounting position and the roller body mounting position are both located in the corona cavity. The lifting driver is provided between the base and the upper box shell and is used to drive the upper box shell to lift. The exhaust component is provided on the base and is in communication with the corona cavity.

[0005] The embodiment of the utility model discloses a corona frame that can reduce ozone emission has at least the following beneficial effects: the box shell subassembly is surrounded by upper box shell and lower box shell and forms a corona cavity, upper box shell and lower box shell are installed high voltage electrode and dielectric barrier roller respectively, the machine base drives upper box shell to go up and down through the lift drive, adjusts the high voltage electrode and the dielectric barrier roller interval, and the exhaust component can suck the gas in the corona cavity, and the film can go in and out of the corona cavity through the film inlet slit and the film outlet slit, because upper box shell and lower box shell surround the corona cavity and form the film inlet slit and the film outlet slit for the film to go in and out, the slit structure reduces the outside air into the corona cavity, that is, reduces the oxygen intake, further inhibits the generation and emission total amount of ozone, and makes the corona cavity form approximate closed environment, thereby reducing the risk of ozone overflow in the corona cavity to the production site.

[0006] According to some embodiments of the utility model, the left side box wall of the upper box shell is in sealing cooperation with the left side box wall of the lower box shell, and the right side box wall of the upper box shell is in sealing cooperation with the right side box wall of the lower box shell.

[0007] According to some embodiments of the utility model, the left and right side box walls of the upper box shell are both provided with sliding lap joints, the two sliding lap joints are respectively in lap joint cooperation with the left and right side box walls of the lower box shell, the sliding lap joint is in sliding cooperation with the lower box shell in the up-down direction, and a sealing element is arranged between the sliding lap joint and the lower box shell.

[0008] According to some embodiments of the utility model, the lower box shell is provided with an exhaust hole, the exhaust assembly comprises an exhaust pump, and an air inlet of the exhaust pump is in communication with the corona cavity through the exhaust hole.

[0009] According to some embodiments of the utility model, the film inlet slit is strip-shaped and extends along the left-right direction, the box shell assembly is provided with a first curtain body on the side close to the film inlet slit, the first curtain body is vertically arranged, the upper end of the first curtain body is arranged on the upper box shell, and the first curtain body shields the left and right end regions of the film inlet slit along the left-right direction.

[0010] According to some embodiments of the utility model, the first curtain body is arranged in at least two along the left-right direction, part of the first curtain bodies shield the left end region of the film inlet slit, and the other part of the first curtain bodies shield the right end region of the film inlet slit, and the first curtain body is adjustably connected to the upper box shell; the upper end of the first curtain body is provided with a first magnetic attraction part, the outer side of the upper box shell is provided with a magnetic attraction cooperation layer, the first magnetic attraction part is in magnetic attraction cooperation with the magnetic attraction cooperation layer, and the first curtain body is located on the outer side of the box shell assembly.

[0011] According to some embodiments of the utility model, the membrane outlet gap is strip-shaped and extends along the left-right direction, the second curtain body is arranged on the side of the box shell assembly close to the membrane outlet gap, the second curtain body is arranged vertically, and the upper end of the second curtain body is arranged on the upper box shell.

[0012] According to some embodiments of the utility model, the second curtain body is arranged in at least two along the left-right direction, part of the second curtain bodies shield the left end area of the membrane outlet gap, and the other part of the second curtain bodies shield the right end area of the membrane outlet gap, and the second curtain body is adjustably connected to the upper box shell.

[0013] According to some embodiments of the utility model, the box shell assembly is provided with a conductive curtain body on the side close to the membrane outlet gap, the conductive curtain body is arranged vertically, and the upper end of the conductive curtain body is arranged on the upper box shell.

[0014] According to some embodiments of the utility model, the box shell assembly further comprises a light-transmitting window plate, the upper box shell is provided with an observation through hole, the observation through hole is communicated with the corona cavity, and the light-transmitting window plate is arranged on the upper box shell and seals the observation through hole.

[0015] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be known through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0017] Fig. 1 It is a three-dimensional schematic view of the corona rack of the utility model embodiment;

[0018] Fig. 2 It is a three-dimensional schematic view of the corona rack of the utility model embodiment along another direction;

[0019] Fig. 3 It is a sectional view schematic view of the corona rack of the utility model embodiment along A-A direction.

[0020] Reference signs:

[0021] Base 100;

[0022] Box shell assembly 200, corona cavity 201, film inlet slit 202, film outlet slit 203, lower box shell 210, upper box shell 220, sliding lap joint 221, sealing element 222, magnetic attraction matching layer 223, light transmission window plate 230;

[0023] Exhaust assembly 300, exhaust pump 310, air pressure gauge 320, temperature and humidity sensor 330;

[0024] First curtain body 400;

[0025] Second curtain body 500;

[0026] Conductive curtain body 600. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application. The device or element indicated is necessarily constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the plural refers to two or more. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0031] Reference Figs. 1 to 3The utility model discloses a can reduce ozone emission's corona rack of embodiment, including base 100, box shell subassembly 200, lifting drive and exhaust component 300. Box shell subassembly 200 sets up in base 100, and box shell subassembly 200 includes lower box shell 210 and upper box shell 220, and upper box shell 220 is set up in base 100 and can be close or far from lower box shell 210 in the lift, and lower box shell 210 and upper box shell 220 enclose and form corona cavity 201, and the rear side box wall of lower box shell 210 and the rear side box wall of upper box shell 220 are set up and form film entry slit 202 in the interval of up and down, and the front side box wall of lower box shell 210 and the front side box wall of upper box shell 220 are set up and form film exit slit 203 in the interval of up and down, and film entry slit 202 and film exit slit 203 all communicate with corona cavity 201, and one of upper box shell 220 and lower box shell 210 is provided with electrode installation site, and the other is provided with roller body installation site, and electrode installation site and roller body installation site all are located in corona cavity 201, lifting drive is set up between base 100 and upper box shell 220 and is used to drive upper box shell 220 to lift, and exhaust component 300 sets up in base 100 and communicates with corona cavity 201.

[0032] Box shell subassembly 200 is enclosed by upper box shell 220 and lower box shell 210 and forms corona cavity 201, and upper box shell 220 and lower box shell 210 are installed high voltage electrode and dielectric barrier roller respectively, and base 100 drives upper box shell 220 to lift through lifting drive and adjusts the distance between high voltage electrode and dielectric barrier roller, and exhaust component 300 can suck the gas in corona cavity 201, and film can enter and exit corona cavity 201 through film entry slit 202 and film exit slit 203, because upper box shell 220 and lower box shell 210 enclose corona cavity 201 and form film entry slit 202 and film exit slit 203 for film to enter and exit, the slit structure reduces the air from outside into corona cavity 201, that is, reduces the amount of oxygen entering, thereby inhibiting the generation and total emission amount of ozone, and making corona cavity 201 form approximate closed environment, thereby reducing the risk of ozone overflow in corona cavity 201 to the production site.

[0033] It should be understood that the corona rack can inhibit the generation and total emission amount of ozone, and also inhibit the overflow of ozone, and also inhibit the generation, emission and overflow of other plasma.

[0034] Specifically, upper box shell 220 can be connected to base 100 along the vertical direction through guide column guide sleeve structure or sliding rail sliding block structure, and lifting drive can adopt structure such as air cylinder, electric cylinder or oil cylinder, to drive upper box shell 220 to lift.

[0035] In embodiments, the left side wall of the upper cabinet 220 is sealingly fitted with the left side wall of the lower cabinet 210, and the right side wall of the upper cabinet 220 is sealingly fitted with the right side wall of the lower cabinet 210. The left and right side walls of the upper cabinet 220 and the lower cabinet 210 are all sealingly fitted, which can further reduce the entry of external air into the corona cavity 201, and further reduce the risk of ozone overflow in the corona cavity 201.

[0036] In embodiments, the left and right side walls of the upper cabinet 220 are provided with sliding lap joints 221, respectively, which are lap-fitted with the left and right side walls of the lower cabinet 210. The sliding lap joints 221 are slidingly fitted with the lower cabinet 210 in the vertical direction, and a sealing element 222 is arranged between the sliding lap joints 221 and the lower cabinet 210. Since the upper cabinet 220 can be raised and lowered relative to the lower cabinet 210, the left and right sides of the upper cabinet 220 are provided with sliding lap joints 221, which are slidingly lap-fitted with the left and right side walls of the lower cabinet 210. The cooperation of the sealing element 222 can enable the two to be sealingly fitted and vertically relatively slid, which is simple in structure and easy to implement.

[0037] Specifically, the sealing element 222 is a three-element ethylene-propylene rubber sealing ring. It can be imagined that in other embodiments, the sealing element 222 can also be a sealing structure such as a silica gel strip, which can be specifically selected by those skilled in the art according to actual needs.

[0038] It can be imagined that in other embodiments, the left and right side walls of the upper cabinet 220 can also be sealingly fitted with the left and right side walls of the lower cabinet 210 through other structures, for example, the lower cabinet 210 is provided with a sliding lap joint 221, which is lap-fitted with the left and right side walls of the upper cabinet 220, and a sealing element 222 is arranged between the sliding lap joint 221 and the upper cabinet 220; or the left side wall of the upper cabinet 220 is arranged vertically with the left side wall of the lower cabinet 210, and the right side wall of the upper cabinet 220 is arranged vertically with the right side wall of the lower cabinet 210, and the cabinet assembly 200 includes a flexible sealing sheet, the upper end of the flexible sealing sheet is connected with the upper cabinet 220, and the lower end of the flexible sealing sheet is connected with the lower cabinet 210. While maintaining that the upper cabinet 220 can be raised and lowered relative to the lower cabinet 210, the left and right sides of the cabinet assembly 200 are sealingly fitted.

[0039] In the embodiment, the lower box shell 210 is provided with an exhaust hole, the exhaust assembly 300 comprises an exhaust pump 310, and an air inlet of the exhaust pump 310 communicates with the corona cavity 201 through the exhaust hole. Since ozone has a large density and is prone to sinking, the exhaust hole is arranged on the lower box shell 210, and the ozone in the corona cavity 201 can be relatively efficiently sucked by the exhaust pump 310, so that the effect of sucking and discharging ozone is good, and the suction structure of the upper box shell 220 and the lower box shell 210 does not need to be separately arranged, thereby simplifying the suction structure.

[0040] Specifically, the exhaust pump 310 can have a suction pressure of 800 Pa to 2000 Pa. The exhaust capacity of the exhaust pump 310 can be 200 to 1000 cubic meters per hour.

[0041] Specifically, the exhaust pump 310 can be connected to the lower box shell 210 through an exhaust pipe, and a pressure gauge 320 is arranged on the exhaust pipe to detect the suction pressure. The exhaust pump 310 can discharge air to a designated position through the exhaust pipe, and a flow meter is arranged on the exhaust pipe to detect the flow of discharged air. A temperature and humidity sensor 330 is arranged on the exhaust pipe to detect the temperature and humidity of the discharged air.

[0042] In the embodiment, the film inlet slit 202 is strip-shaped and extends along the left-right direction, and the box shell assembly 200 is provided with a first curtain body 400 on the side close to the film inlet slit 202. The first curtain body 400 is arranged along the vertical direction, the upper end of the first curtain body 400 is arranged on the upper box shell 220, and the first curtain body 400 shields the left and right end regions of the film inlet slit 202 along the left-right direction. The plastic film enters the corona cavity 201 through the middle region of the film inlet slit 202, so that the left and right end regions of the film inlet slit 202 are shielded by the first curtain body 400, thereby reducing the air inlet amount of the film inlet slit 202, and further inhibiting the total amount of ozone generation and discharge.

[0043] In the embodiment, at least two first curtain bodies 400 are arranged along the left-right direction, part of the first curtain bodies 400 shield the left end region of the film inlet slit 202, and the other part of the first curtain bodies 400 shield the right end region of the film inlet slit 202. The first curtain bodies 400 are adjustably connected to the upper box shell 220. The first curtain bodies 400 are arranged in two or more, and the position of the first curtain bodies 400 can be adjusted, so that the range of the region of the film inlet slit 202 shielded by the first curtain bodies 400 can be adjusted, that is, the position of the first curtain bodies 400 can be adjusted according to the width of the film, so as to adapt to the production needs of different specifications of film width, and improve the production versatility of the corona rack.

[0044] Specifically, the first curtain body 400 can be arranged in two, three, four or more, which can be specifically selected by those skilled in the art according to actual needs.

[0045] In the embodiment, the upper end of the first curtain body 400 is provided with a first magnetic attraction part, the outer side of the upper cabinet shell 220 is provided with a magnetic attraction matching layer 223, the magnetic attraction part is matched with the magnetic attraction matching layer 223, and the first curtain body 400 is located outside the cabinet shell assembly 200. The first curtain body 400 is fixed to the outer side of the upper cabinet shell 220 in a magnetic attraction matching mode, so that the installation position of the first curtain body 400 can be adjusted according to production needs, and the structure is simple and easy to implement.

[0046] Specifically, the first magnetic attraction part is a magnet, and the magnetic attraction matching layer 223 is an iron material layer. It can be imagined that the first magnetic attraction part can also be an iron block, and the magnetic attraction matching layer 223 is a magnet layer.

[0047] It can be imagined that in other embodiments, the first curtain body 400 can also be adjusted in position through other structures, for example, the upper end of the first curtain body 400 is connected to the upper cabinet shell 220 through a slide rail slider structure in the left-right direction, and the left-right position of the first curtain body 400 is adjusted through sliding.

[0048] In the embodiment, the film outlet gap 203 is strip-shaped and extends in the left-right direction, the cabinet shell assembly 200 is provided with a second curtain body 500 on the side close to the film outlet gap 203, the second curtain body 500 is arranged in the vertical direction, the upper end of the second curtain body 500 is arranged on the upper cabinet shell 220, and the second curtain body 500 shields the left-right end regions of the film outlet gap 203. The plastic film passes through the middle region of the film outlet gap 203 and leaves the corona cavity 201, so that by shielding the left-right end regions of the film outlet gap 203 through the second curtain body 500, the air inlet amount of the film outlet gap 203 can be reduced, and the total amount of ozone generation and emission can be inhibited.

[0049] In the embodiment, at least two second curtain bodies 500 are arranged in the left-right direction, part of the second curtain bodies 500 shield the left end region of the film outlet gap 203, and the other part of the second curtain bodies 500 shield the right end region of the film outlet gap 203, and the second curtain bodies 500 are connected to the upper cabinet shell 220 in an adjustable position. The second curtain body 500 is provided with two or more, and the position of the second curtain body 500 can be adjusted, so that the range of the region of the film outlet gap 203 shielded by the second curtain body 500 can be adjusted, that is, the position of the second curtain body 500 can be adjusted according to the width of the film, so as to adapt to the production needs of different specifications of film width and improve the production versatility of the corona rack.

[0050] Specifically, the second curtain body 500 can be provided with two, three, four or more, which can be specifically selected by those skilled in the art according to actual needs.

[0051] In the embodiment, the upper end of the second curtain body 500 is provided with a second magnetic attraction part, the outer side of the upper box shell 220 is provided with a magnetic attraction matching layer 223, the second magnetic attraction part is matched with the magnetic attraction matching layer 223, and the second curtain body 500 is located outside the box shell assembly 200. The second curtain body 500 is fixed to the outer side of the upper box shell 220 in a magnetic attraction matching mode, so that the installation position of the second curtain body 500 is adjusted according to production requirements, and the structure is simple and easy to implement.

[0052] Specifically, the second magnetic attraction part is a magnet, and the magnetic attraction matching layer 223 is an iron material layer. It can be imagined that the second magnetic attraction part can also be an iron block, and the magnetic attraction matching layer 223 is a magnet layer.

[0053] It can be imagined that in other embodiments, the second curtain body 500 can also be adjusted in position through other structures, for example, the upper end of the second curtain body 500 is connected to the upper box shell 220 in a sliding connection mode along the left-right direction through a slide rail and a slide block structure, and the left-right position of the second curtain body 500 is adjusted in a sliding mode.

[0054] In the embodiment, the box shell assembly 200 is provided with a conductive curtain body 600 close to one side of the film outlet gap 203, the conductive curtain body 600 is arranged in a vertical direction, the upper end of the conductive curtain body 600 is arranged on the upper box shell 220, and the lower end of the conductive curtain body 600 is opposite to the middle region of the film outlet gap 203. The lower end of the conductive curtain body 600 is opposite to the middle region of the film outlet gap 203, and after the film leaves the corona cavity 201 through the film outlet gap 203, the film can contact the conductive curtain body 600. The conductive curtain body 600 can not only eliminate part of the static electricity on the film, but also can partially shield the middle region of the film outlet gap 203, thereby reducing the air entering the corona cavity 201 and inhibiting the generation and emission of ozone.

[0055] In the embodiment, the conductive curtain body 600 is arranged in at least two along the left-right direction, the upper end of the conductive curtain body 600 is provided with a third magnetic attraction part, and the third magnetic attraction part is matched with the magnetic attraction matching layer 223. The conductive curtain body 600 is installed to the outer side of the upper box shell 220 in a magnetic attraction matching mode, and the conductive curtain body 600 can be magnetically attracted and installed to a suitable position and number according to the width of the film produced, so as to facilitate the production of different specifications of the film and improve the versatility of the corona rack. Specifically, the third magnetic attraction part is a magnet.

[0056] In the embodiment, the box shell assembly 200 further comprises a light-transmitting window plate 230, the upper box shell 220 is provided with an observation through hole in communication with the corona cavity 201, and the light-transmitting window plate 230 is arranged on the upper box shell 220 and seals the observation through hole. The light-transmitting window plate 230 is arranged on the observation through hole, so that the production personnel can observe the corona condition inside the corona cavity 201 through the light-transmitting window plate 230, and the light-transmitting window plate 230 seals the observation through hole, so that the ozone inside the corona cavity 201 can be prevented from overflowing.

[0057] Specifically, the light-transmitting window plate 230 can be made of, for example, a transparent PC plate or glass.

[0058] Specifically, the film is produced by an extruder cooperating with an extrusion die, when the die lip gap of the extruder die is n, the height of the film inlet gap 202 and the film outlet gap 203 is h, and 2n≤h≤2.5n is satisfied. When h is too large, the film inlet gap 202 and the film outlet gap 203 are prone to wind; when h is too small, if the film has impurities or the film thickness is relatively thick at the initial stage of starting the extruder, the film is prone to fail to pass through the film inlet gap 202 and the film outlet gap 203.

[0059] Specifically, other positions inside the upper box shell 220 also have sealing structures to prevent air leakage; other positions inside the lower box shell 210 also have sealing structures to prevent air leakage.

[0060] Specifically, the corona rack of the utility model can be applied to a corona machine for blown film method and cast film method.

[0061] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A corona generator frame that reduces ozone emissions, characterized in that, include: Base (100); A housing assembly (200) is disposed on the base (100). The housing assembly (200) includes a lower housing (210) and an upper housing (220). The upper housing (220) is vertically and vertically disposed on the base (100) and can move closer to or further away from the lower housing (210). The lower housing (210) and the upper housing (220) enclose a corona discharge cavity (201). The rear wall of the lower housing (210) and the rear wall of the upper housing (220) are vertically spaced and form a... The inlet gap (202) is provided with the front wall of the lower box (210) and the front wall of the upper box (220) being spaced vertically to form the outlet gap (203). Both the inlet gap (202) and the outlet gap (203) are connected to the corona cavity (201). One of the upper box (220) and the lower box (210) is provided with an electrode mounting position, and the other is provided with a roller mounting position. Both the electrode mounting position and the roller mounting position are located in the corona cavity (201). A lifting drive is disposed between the base (100) and the upper housing (220) and is used to drive the upper housing (220) to lift. An exhaust assembly (300) is disposed on the base (100) and communicates with the corona chamber (201).

2. The corona generator frame for reducing ozone emissions according to claim 1, characterized in that: The left side wall of the upper shell (220) is sealed to the left side wall of the lower shell (210), and the right side wall of the upper shell (220) is sealed to the right side wall of the lower shell (210).

3. The corona treatment frame for reducing ozone emissions according to claim 2, characterized in that: The upper housing (220) has sliding overlap portions (221) on both the left and right sides of the housing wall. The two sliding overlap portions (221) are respectively engaged with the left and right sides of the lower housing (210). The sliding overlap portions (221) and the lower housing (210) are engaged in a sliding cooperation in the vertical direction. A sealing element (222) is provided between the sliding overlap portions (221) and the lower housing (210).

4. The corona treatment frame for reducing ozone emissions according to claim 1, characterized in that: The lower housing (210) is provided with an exhaust port, and the exhaust assembly (300) includes an exhaust pump (310). The air inlet of the exhaust pump (310) is connected to the corona chamber (201) through the exhaust port.

5. The corona treatment frame for reducing ozone emissions according to claim 1, characterized in that: The inlet gap (202) is strip-shaped and extends in the left and right direction. A first curtain (400) is provided on the side of the housing assembly (200) near the inlet gap (202). The first curtain (400) is arranged vertically. The upper end of the first curtain (400) is provided on the upper housing (220). The first curtain (400) covers the two ends of the inlet gap (202) in the left and right direction.

6. The corona treatment rack for reducing ozone emissions according to claim 5, characterized in that: At least two first curtains (400) are arranged in the left-right direction. Part of the first curtain (400) covers the left end area of ​​the film inlet gap (202), and another part of the first curtain (400) covers the right end area of ​​the film inlet gap (202). The first curtain (400) is connected to the upper housing (220) in an adjustable position. A first magnetic attraction part is provided at the upper end of the first curtain (400), and a magnetic attraction layer (223) is provided on the outer side of the upper housing (220). The magnetic attraction part and the magnetic attraction layer (223) are magnetically attracted to each other. The first curtain (400) is located on the outer side of the housing assembly (200).

7. The corona treatment frame for reducing ozone emissions according to claim 1, characterized in that: The membrane outlet slit (203) is strip-shaped and extends in the left-right direction. A second curtain (500) is provided on the side of the housing assembly (200) near the membrane outlet slit (203). The second curtain (500) is arranged vertically. The upper end of the second curtain (500) is provided on the upper housing (220). The second curtain (500) covers the two ends of the membrane outlet slit (203) in the left-right direction.

8. The corona treatment frame for reducing ozone emissions according to claim 7, characterized in that: At least two second curtains (500) are arranged in the left-right direction. Part of the second curtain (500) covers the left end area of ​​the membrane outlet gap (203), and another part of the second curtain (500) covers the right end area of ​​the membrane outlet gap (203). The second curtain (500) is connected to the upper housing (220) in an adjustable position. A second magnetic attraction part is provided at the upper end of the second curtain (500). A magnetic attraction layer (223) is provided on the outer side of the upper housing (220). The magnetic attraction part and the magnetic attraction layer (223) are magnetically attracted to each other. The second curtain (500) is located on the outer side of the housing assembly (200).

9. The corona treatment frame for reducing ozone emissions according to claim 7, characterized in that: A conductive curtain (600) is provided on the side of the housing assembly (200) near the membrane outlet gap (203). The conductive curtain (600) is arranged vertically, with its upper end located on the upper housing (220) and its lower end facing the middle region of the membrane outlet gap (203).

10. The corona treatment frame for reducing ozone emissions according to claim 1, characterized in that: The housing assembly (200) further includes a light-transmitting window plate (230). The upper housing (220) is provided with an observation through hole, which is connected to the corona cavity (201). The light-transmitting window plate (230) is disposed on the upper housing (220) and closes the observation through hole.

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