Corona treatment device for polyester film

Abstract

The utility model discloses a polyester film corona treatment device which comprises a main body mechanism, the main body mechanism comprises a shell, two corona treatment assemblies symmetrically mounted on the inner wall of the shell, guide rollers mounted on the inner walls of the two sides of the shell respectively, tension rollers rotationally mounted on the opposite inner walls of the shell, a plurality of air blowing pipes fixed on the opposite inner walls of the shell, and an air blowing piece mounted on one side of the shell and communicated with the air blowing pipes; the support is fixed to the inner wall of the shell, the filtering part is embedded in the support in a sliding mode and extends out of the shell, the shell is used for installing other assemblies, meanwhile, a closed environment is formed, dust is prevented from being attached to a film in the corona treatment process, the corona treatment assemblies are used for conducting corona treatment on the film, and the two corona treatment assemblies are symmetrically arranged, so that the corona treatment efficiency is improved. The corona treatment device for the polyester film can perform corona treatment on the two sides of the film at the same time, the corona treatment efficiency of the film is improved, and the corona treatment device for the polyester film has the advantages of good corona efficiency and corona effect.

Description

Technical Field

[0001] The utility model relates to the technical field of film corona treatment, in particular to a polyester film corona treatment device. Background Art

[0002] Corona treatment devices are primarily used for surface treatment of plastic film or sheet products. Before these materials are subjected to ink printing, lamination, film blowing, coating, bonding, material modification, grafting, polymerization, coating, cast film, or pasting processes, corona treatment is necessary to enhance surface adhesion (i.e., achieve a higher dyne coefficient) and prevent issues such as color loss during printing, loose lamination, and uneven coating that can affect product quality. Corona treatment utilizes high-frequency, high-voltage corona discharge on the surface of the film being treated, generating a low-temperature plasma. This generates free radical reactions on the film surface, causing cross-linking of the polymers, roughening the surface, and increasing its wettability to polar solvents.

[0003] The existing polyester film corona treatment device has the following main disadvantages during use: after the corona treatment is completed, the film temperature is high and it is easy to wrinkle or stick to the rubber roller, affecting the production quality and production efficiency of the film. In addition, during the film corona treatment, some ozone gas harmful to the human body will be generated. If these gases are not treated, they will cause certain damage to the human respiratory tract. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted by the present invention is: a polyester film corona treatment device, comprising: a main body mechanism, the main body mechanism including a shell, two corona treatment components symmetrically mounted on the inner wall of the shell, guide rollers respectively mounted on the inner walls on both sides of the shell, a tension roller rotatably mounted on the opposite inner walls of the shell, a plurality of blowing pipes fixed on the opposite inner walls of the shell, a blasting member mounted on one side of the shell and connected to the blowing pipe, a bracket fixed on the inner wall of the shell, and a filter element slidably embedded in the bracket and extending out of the shell.

[0006] The filter element includes a frame body that is slidably embedded in the bracket and extends out of the shell, a second filter screen symmetrically installed on the inner wall of the frame body, and a pull ring symmetrically fixed on one side of the frame body, and activated carbon is filled between the second filter screen.

[0007] In a preferred example, the present invention can be further configured as follows: the corona treatment assembly includes a rubber roller rotatably mounted on opposite inner walls of the shell and a corona treatment device mounted on the inner wall of the shell and located on one side of the rubber roller.

[0008] In a preferred example, the present invention can be further configured as follows: two air blowing tubes are arranged as a group, and the two air blowing tubes in the group are symmetrically arranged, and air holes are arranged in an array on one side of the air blowing tube to communicate with the inner cavity of the air blowing tube.

[0009] In a preferred example, the present invention can be further configured as follows: the blowing member includes a box body fixed to one side of the shell, a high-speed fan installed on the inner wall of the box body, and a first filter installed on the inner wall of the box body.

[0010] In a preferred example, the present invention can be further configured as follows: the end of the air blowing pipe is communicated with the inner cavity of the box.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0012] 1. In the utility model, two corona treatment components are symmetrically installed on the inner wall of the shell, which can simultaneously perform corona treatment on both sides of the film, effectively increasing the efficiency of the corona treatment of the film. In addition, multiple air blowing pipes are installed on the opposite inner walls of the shell, and one end of the air blowing pipe is connected to the blowing member. Through the above arrangement, after each corona treatment of the film is completed, the blowing member sends a high-speed airflow into the air blowing pipe, and the high-speed airflow is blown out from the air blowing pipe, accelerating the flow rate of the air near the surface of the film, thereby quickly taking away the temperature on the film, reducing the temperature of the film after the corona treatment, effectively avoiding the occurrence of wrinkles and the like after the corona treatment of the film, and ensuring the production quality and production efficiency of the corona treatment of the film.

[0013] 2. In the utility model, a bracket is installed on the inner wall of the shell, and a filter element extending out of the shell is slidably engaged with the bracket. Through the setting of the filter element, the ozone molecules in the air can be filtered and purified when the air in the inner cavity of the shell is discharged from the shell, thereby preventing the ozone gas from being transmitted to the external environment and causing harm to the workers' bodies, thereby further increasing the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a side cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the blasting member and the blowing member of the utility model;

[0017] Figure 4 This is a cross-sectional diagram of the blasting member and the blowing member of the utility model

[0018] Figure 5 This is a schematic diagram of the filter element and bracket structure of the utility model.

[0019] Reference numerals:

[0020] 100. Main body; 110. Shell; 120. Corona treatment assembly; 121. Rubber roller; 122. Corona treatment device; 130. Guide roller; 140. Tension roller; 150. Air blower; 151. Air hole; 160. Blower; 161. Box; 162. High-speed fan; 163. First filter; 170. Bracket; 180. Filter element; 181. Frame; 182. Second filter; 183. Pull ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0022] Some embodiments of the present invention are described below with reference to the accompanying drawings. Example 1

[0023] Combine Figure 1-5 As shown, this embodiment provides a polyester film corona treatment device 122 , including: a main body mechanism 100 .

[0024] Among them, the main mechanism 100 includes a shell 110, two corona treatment components 120 symmetrically installed on the inner wall of the shell 110, guide rollers 130 respectively installed on the inner walls on both sides of the shell 110, a tension roller 140 rotatably installed on the opposite inner walls of the shell 110, a plurality of blowing pipes 150 fixed on the opposite inner walls of the shell 110, a blowing member 160 installed on one side of the shell 110 and connected to the blowing pipe 150, a bracket 170 fixed on the inner wall of the shell 110, and a filter element 180 slidably embedded in the bracket 170 and extending out of the shell 110.

[0025] The shell 110 is used to install other components and form a closed environment to prevent dust from adhering to the film during the corona treatment process. The corona treatment component 120 is used to perform corona treatment on the film. Through the symmetrical arrangement of the two corona treatment components 120, corona treatment can be performed on both sides of the film at the same time, thereby increasing the efficiency of the corona treatment of the film.

[0026] The corona treatment assembly 120 includes a rubber roller 121 rotatably mounted on the opposite inner wall of the shell 110 and a corona treatment device 122 mounted on the inner wall of the shell 110 and located on one side of the rubber roller 121. The rubber roller 121 is used to pass the film around to ensure the surface flatness of the film during corona treatment. The corona treatment device 122 is used to perform corona treatment on the surface of the film.

[0027] The guide roller 130 is used to guide the movement of the film, and the tension roller 140 is used to adjust the tension of the film to ensure that the film can be closely attached to the surface of the rubber roller 121.

[0028] The two blowing tubes 150 are arranged as a group, and the two blowing tubes 150 in the group are symmetrically arranged. Air holes 151 are arranged in an array on one side of the blowing tube 150 and connected to the inner cavity of the blowing tube 150, so that high-speed airflow is ejected from both sides of the film at the same time to ensure the wind force balance on both sides of the film, and at the same time accelerate the air flow rate on the surface of the film, and take away the heat of the film after corona treatment through the high-speed flowing air.

[0029] The blowing member 160 is used to send high-speed airflow into the air blowing pipe 150, and includes a box body 161 fixed to one side of the shell 110, a high-speed fan 162 installed on the inner wall of the box body 161, and a first filter 163 installed on the inner wall of the box body 161. The box body 161 is connected to the air blowing pipe 150, the high-speed fan 162 is used to accelerate the outside air into the air blowing pipe 150, and the first filter 163 is used to filter dust in the air to prevent dust from entering the inner cavity of the shell 110.

[0030] The bracket 170 is fixed on the inner wall of the shell 110 and is used to install the filter element 180 to ensure the stability of the filter element 180. The filter element 180 is used to filter the air discharged from the shell 110, including a frame 181 that is slidably embedded in the bracket 170 and extends out of the shell 110, a second filter screen 182 symmetrically installed on the inner wall of the frame 181, and a pull ring 183 symmetrically fixed on one side of the frame 181. The frame 181 is used to install the second filter screen 182. A semi-enclosed space is formed between the second filter screen 182 and the inner walls on both sides of the frame 181. Activated carbon is filled in the semi-enclosed space, which can adsorb ozone molecules in the air in the inner cavity of the shell 110 to prevent them from being discharged into the external environment. A rectangular hole is opened at the top of the frame 181 between the second filter screen 182 to facilitate the replacement of the activated carbon.

[0031] The working principle and use process of the present invention are as follows: when in use, the film passes through the guide roller 130 on one side, then passes around the corona treatment component 120 at the bottom of the inner cavity of the shell 110, then passes around the corona treatment component 120 at the top of the inner cavity of the shell 110, and then passes around the tension roller 140 and is sent out from the guide roller 130 on the other side. At this time, the corona treatment devices 122 on both sides are running at the same time, and corona treatment is performed on both sides of the film at the same time. At the same time, the high-speed fan 162 is started, and the outside air is sucked into the box 161 and sent into the blowing pipe 150. The high-speed airflow passes through the blowing pipe 150. The air is ejected from the air holes 151 to accelerate the air flow rate on the surface of the film. The high-speed flowing air can quickly take away the heat generated by the corona treatment of the film and reduce the temperature of the film. At this time, the air pressure in the shell 110 is greater than the external gas, and the air in the shell 110 is discharged outward through the filter element 180. When passing through the filter element 180, the second filter 182 and the activated carbon between the second filter 182 can filter and purify the ozone molecules in the air in the shell 110. When the activated carbon is saturated, the frame 181 can be pulled out from the bracket 170 through the pull ring 183 to replace the activated carbon.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A polyester film corona treatment device comprising: A main body mechanism (100), characterized in that the main body mechanism (100) includes a shell (110), two corona treatment assemblies (120) symmetrically mounted on the inner wall of the shell (110), guide rollers (130) respectively mounted on the inner walls of both sides of the shell (110), a tension roller (140) rotatably mounted on opposite inner walls of the shell (110), a plurality of air blowing pipes (150) fixed on opposite inner walls of the shell (110), a blasting member (160) mounted on one side of the shell (110) and connected to the air blowing pipes (150), a bracket (170) fixed on the inner wall of the shell (110), and a filter member (180) slidably engaged with the bracket (170) and extending out of the shell (110); The filter element (180) includes a frame (181) slidably engaged on the bracket (170) and extending out of the housing (110), a second filter screen (182) symmetrically mounted on the inner wall of the frame (181), and a pull ring (183) symmetrically fixed on one side of the frame (181), with activated carbon filled between the second filter screen (182).

2. A polyester film corona treatment device according to claim 1, characterized in that: The corona treatment assembly (120) comprises a rubber roller (121) rotatably mounted on the opposite inner wall of the housing (110) and a corona treatment device (122) mounted on the inner wall of the housing (110) and located on one side of the rubber roller (121).

3. A polyester film corona treatment device according to claim 1, characterized in that: The two air blowing tubes (150) are arranged as a group, and the two air blowing tubes (150) in the group are symmetrically arranged. Air holes (151) are arranged in an array on one side of the air blowing tube (150) and communicate with the inner cavity of the air blowing tube (150).

4. A polyester film corona treatment device according to claim 1, characterized in that: The air blowing member (160) comprises a box body (161) fixed to one side of the housing (110), a high-speed fan (162) mounted on the inner wall of the box body (161), and a first filter screen (163) mounted on the inner wall of the box body (161).

5. A polyester film corona treatment device according to claim 4, characterized in that: The end of the air blowing pipe (150) is in communication with the inner cavity of the box body (161).

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