Cleaning device for PET film subjected to corona treatment

Abstract

The utility model discloses a cleaning device for a PET film after corona treatment, which comprises a dust removal seat with a notch on the side surface, an air inflation channel and an air exhaust channel are arranged inside the dust removal seat, an outlet of the air inflation channel and an inlet of the air exhaust channel are oppositely arranged and are communicated with the inside of the notch, an ultrasonic generator is arranged at the bottom of the notch, and the air exhaust channel is communicated with the inside of the notch. An ion generator is arranged in the inflation channel; the notch is right opposite to and adjacent to the film, airflow sequentially passes through the inflation channel, the notch and the air exhaust channel, and the film is cleaned through the airflow. Ultrasonic waves generated by the ultrasonic generator enable dust on a film to be loosened, and airflow passing through the interior of the notch can blow off and suck away the dust on the film, so that the film is cleaned; and ions released by the ion generator are neutralized with charges on the film, so that an effect of eliminating static electricity is achieved, the probability of electrostatic breakdown during film unwinding is reduced, and the quality of the film is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to PET film cleaning technical field, especially related to a kind of cleaning device of PET film after corona treatment. BACKGROUND

[0002] PET film has static on film after corona treatment, leading to fine dust particles being easily adsorbed on film, in subsequent coating process, existing dust particles can cause film surface flaw.

[0003] Traditional processing mode is to use dust sticking roller to stick dust particles on film, but when using dust sticking roller to remove dust, dust sticking roller is in contact with film surface, easy to scratch film, and with the increase of use time, dust sticking roller removes dust capacity will weaken;Film with static is directly wound, in subsequent unwinding process, it is also easy to produce electrostatic breakdown, affect the quality of film.

[0004] Therefore, it is necessary to improve the cleaning device of PET film in the prior art. INVENTION CONTENTS

[0005] The utility model aims at overcoming the defects in the prior art, provide a kind of cleaning device of PET film after corona treatment, it has the technical effect of removing static and dust on PET film.

[0006] To achieve the above object, the specific technical scheme of the cleaning device of PET film after corona treatment of the utility model is as follows:

[0007] A kind of cleaning device of PET film after corona treatment, including the dust removal seat with notch in side face, the dust removal seat inside is also provided with aeration channel and air extraction channel, the outlet of the aeration channel and the inlet of the air extraction channel are opposite and are set, and all are communicated with the inside of the notch, the bottom of the notch is provided with ultrasonic generator, the aeration channel is provided with ion generator;The notch is opposite and is closely adjacent to film setting, airflow successively passes through the aeration channel, the notch and the air extraction channel, and the cleaning of film is realized by airflow.

[0008] Preferably, the dust removal seat is provided with two, and the two dust removal seats are symmetrically arranged on the two sides of the film.

[0009] Preferably, the film is vertically upwards from between the two dust removal seats, the outlet of the aeration channel is arranged downward along vertical direction, and the inlet of the air extraction channel is arranged upward along vertical direction.

[0010] Preferably, the bottom surface of the notch is provided with mounting hole, the ultrasonic generator is inserted into the mounting hole, and the emission end of the ultrasonic generator is flush with the bottom surface of the notch.

[0011]

[0011] Preferably, the side wall of the inflation channel is provided with a through hole communicating with the outside of the inflation channel, the ion generator is sealingly inserted into the through hole, and the ion generator extends into the inside of the inflation channel through the through hole.

[0012] Preferably, the inlet of the inflation channel is connected with an inflation pump, the outlet of the air extraction channel is connected with an air extraction pump, and the inflation amount of the inflation pump is less than the air extraction amount of the air extraction pump.

[0013] Preferably, a dust removal filter core is arranged in the inside of the inflation channel.

[0014] Preferably, the dust removal seat is provided with a displacement device for adjusting the distance between the dust removal seat and the film.

[0015] Preferably, the displacement device comprises a guide rail arranged perpendicularly to a vertical plane on which the film is arranged, the dust removal seat is fixedly connected with a sliding sleeve slidingly matched with the guide rail, the guide rail is provided with a power member in transmission connection with the dust removal seat, and the dust removal seat is further fixedly connected with a distance sensor.

[0016] Preferably, the width of the notch is greater than the width of the film.

[0017] The cleaning device for the corona-treated PET film has the following advantages: the ultrasonic waves emitted by the ultrasonic generator loosen the dust on the film, the airflow through the inside of the notch can blow off and suck away the dust on the film, thereby realizing the cleaning of the film; the ions released by the ion generator neutralize the electric charges on the film, thereby playing a role in removing static electricity, reducing the probability of static breakdown of the film during unwinding, and improving the quality of the film. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of the cleaning device of the present application;

[0019] Figure 2 FIG. 2 is a sectional view of the cleaning device of the present application;

[0020] Figure 3 FIG. 3 is a schematic view of the installation structure of the ion generator and the ultrasonic generator of the present application;

[0021] Figure 4 FIG. 4 is a structural schematic view of the dust removal seat of the present application;

[0022] Marked description: 1, film; 2, dust removal seat; 3, pipeline; 4, air pump; 5, air pump; 6, sealing cover plate; 7, guide rail; 8, air cylinder; 9, ultrasonic generator; 10, ion generator; 11, distance sensor; 12, dust removal filter element; 201, air inlet channel; 202, air outlet channel; 203, mounting hole; 204, through hole; 205, sliding sleeve; 206, notch. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0024] The "top surface", "bottom", "bottom surface" take the normal use state of the PET film cleaning device as reference, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, cannot be understood as limiting the utility model.

[0025] As shown in Figure 2 A kind of cleaning device of PET film after corona treatment, including the dust removal seat 2 that recess 206 is opened in side, dust removal seat 2 inside is also provided with air inlet channel 201 and air outlet channel 202, the outlet of air inlet channel 201 and the entrance of air outlet channel 202 are opposite and are arranged, and all are communicated with recess 206 inside, recess 206 bottom is provided with ultrasonic generator 9, air inlet channel 201 is provided with ion generator 10;Recess 206 is opposite and is arranged in close proximity to film 1, air flow passes through air inlet channel 201, recess 206 and air outlet channel 202 in turn, and the cleaning of film 1 is realized by air flow.

[0026] The above cleaning device is suitable for dust removal and static electricity removal of the film 1 after the PET film is subjected to corona treatment. In use, air is filled into the air filling passage 201, and air in the air extraction passage 202 is extracted, so that a strong air flow in the direction from the air filling passage 201 to the air extraction passage 202 is formed in the notch 206. When the notch 206 is close to the film 1, the air flow in the notch 206 can wash the dust on the film 1, so that the dust is separated from the film 1 and is sucked into the air extraction passage 202. According to Bernoulli's principle, the high-speed air flow in the notch 206 can generate suction in the notch 206, so that the dust on the film 1 is sucked away by the suction, and the cleaning effect of the film 1 is improved. The ultrasonic generator 9 arranged at the bottom of the notch 206 can emit ultrasonic waves to the film 1, and the dust adsorbed on the film 1 is loosened by the vibration of the ultrasonic waves, so that the cleaning effect of the dust is improved. The dust on the film 1 is cleaned, the subsequent coating effect of the film 1 is improved, and the quality of the finished product of the film 1 is improved. The ion generator 10 can release ions, and the ions are blown to the film 1 along with the air flow, so that the static electricity on the film 1 is neutralized, the static electricity on the film 1 is eliminated, the adsorption effect of the dust by the static electricity is reduced, the cleaning effect of the film 1 is further improved, the quality of the finished product of the film 1 is improved, and the probability of static electricity breakdown of the film 1 in the subsequent unwinding process is prevented after the static electricity is eliminated, and the quality of the finished product of the film 1 is further improved.

[0027] Further improvement is that, as shown in Figure 1 and 2 , the dust removal seat 2 is provided with two, and the two dust removal seats 2 are symmetrically arranged on both sides of the film 1. By simultaneously arranging two dust removal seats 2, the two sides of the film 1 can be cleaned at the same time, the cleaning effect and efficiency of the film 1 are improved, and the two sides of the film 1 are cleaned at the same time, so that the film 1 is balanced in tension, preventing the film 1 from being stretched during cleaning due to uneven stress, and improving the quality of the film 1.

[0028] Further improvement is that, as shown in Figure 2 , the film 1 vertically passes between the two dust removal seats 2, the outlet of the air filling passage 201 is arranged vertically downward, and the inlet of the air extraction passage 202 is arranged vertically upward. The film 1 moves vertically upward, and the air flow in the notch 206 flows vertically downward. In this way, the flow direction of the air flow is opposite to the moving direction of the film 1, the probability that the cleaned dust is blown to the cleaned area of the film 1 by the air flow is reduced, the probability that the cleaned film 1 is secondarily polluted is reduced, the cleaning effect of the film 1 is improved, and the quality of the finished product of the film 1 is improved. In addition, the dust or small particles blown off during cleaning will fall downward under the action of gravity, which can also prevent the dust or small particles from entering the cleaned area of the film 1, further ensuring the cleaning effect of the film 1.

[0029] Further improvements include, for example Figures 2-4 As shown, a mounting hole 203 is provided on the bottom surface of the recess 206. The ultrasonic generator 9 is inserted into the mounting hole 203, and the emitting end of the ultrasonic generator 9 is flush with the bottom surface of the recess 206. The mounting hole 203 is a through hole, so the operator can remove and install the ultrasonic generator 9 from the side of the dust collector 2 away from the recess 206. Since this side is not blocked by the membrane 1, the convenience of maintenance and repair of the ultrasonic generator 9 can be improved, thereby improving the convenience of using the cleaning device.

[0030] Further improvements include, for example Figures 2-4 As shown, the side wall of the inflation channel 201 has a through hole 204 connecting to the outside of the inflation channel 201. The ion generator 10 is sealed and inserted into the through hole 204, extending into the interior of the inflation channel 201 through the through hole 204. The ion generator 10 can be inserted into the inside of the inflation channel 201 through the through hole 204, thus allowing the ion generator 10 to be disassembled and installed from the outside of the dust collector 2, improving the convenience of maintenance and thus improving the ease of use of the cleaning device.

[0031] Further improvements include, for example Figure 1 As shown, an air pump 5 is connected to the inlet of the air inflation channel 201, and an air pump 4 is connected to the outlet of the air extraction channel 202. The air inflation capacity of the air pump 5 is less than the air extraction capacity of the air pump 4. Specifically, the inlet cover of the inflation channel 201 is equipped with a sealing cover plate 6, and the two sealing covers plate 6 at the inlet of the two inflation channels 201 are connected to the inflation pump 5 through a corrugated pipe 6; the outlet cover of the exhaust channel 202 is equipped with a sealing cover plate 6, and the two sealing covers plate 6 at the outlet of the two exhaust channels 202 are connected to the exhaust pump 4 through a corrugated pipe 6. The inflation pump 5 injects external air into the inflation channel 201 to generate positive air pressure, and the exhaust pump 4 extracts the air from the exhaust channel 202 to generate negative air pressure, so that the airflow can flow rapidly inside the recess 206; when the inflation volume of the inflation pump 5 is less than the extraction volume of the exhaust pump 4, a negative pressure can be generated inside the recess 206, thereby drawing the air between the recess 206 and the membrane 1 into the recess 206, reducing the probability of dust being blown out from the gap between the dust collector seat 2 and the membrane 1, and improving the dust removal effect on the membrane 1.

[0032] Further improvements include, for example Figure 2As shown, the inside of the air charging channel 201 is provided with a dust removal filter element 12. The provision of the dust removal filter element 12 can purify the air entering the inside of the air charging channel 201, reduce the amount of dust entering the inside of the notch 206, reduce the probability of polluting the film 1, and improve the cleaning effect on the film 1. At the same time, the provision of the dust removal filter element 12 can also make the airflow entering the inside of the air charging channel 201 uniformly distributed to all parts of the inside of the air charging channel 201, thereby improving the uniformity of the airflow distribution in the inside of the notch 206 and improving the cleaning effect on the film 1.

[0033] Further improvement is that, as shown in Figure 1 As shown, the dust removal seat 2 is provided with a displacement device for adjusting the distance between the dust removal seat 2 and the film 1. The displacement device includes a guide rail 7 arranged perpendicular to the vertical plane where the film 1 is located. The dust removal seat 2 is fixedly connected with a sliding sleeve 205 which is in sliding cooperation with the guide rail 7. A power member is arranged on the guide rail 7 and is in transmission connection with the dust removal seat 2. The dust removal seat 2 is also fixedly connected with a distance sensor 11.

[0034] Specifically, the guide rail 7 can be fixed on the ground, wall or rack of the equipment to complete the fixation of the guide rail 7. The distance between the dust removal seat 2 and the film 1 is detected by the distance sensor 11, and the distance signal is sent to the control system of the equipment. The control system controls the power member, which is a pneumatic cylinder 8, to drive the dust removal seat 2 to move along the guide rail 7, so as to adjust the distance between the dust removal seat 2 and the film 1. By reasonably controlling the distance, the cleaning effect on the film 1 can be maintained while reducing the probability of contact between the film 1 and the dust removal seat 2, thereby reducing the probability of scratching the film 1 and improving the quality of the film 1 production.

[0035] Further improvement is that, as shown in Figure 4 As shown, the width of the notch 206 is greater than the width of the film 1. In this way, the airflow cleaning range in the inside of the notch 206 can completely cover the film 1, improve the completeness of the cleaning of the film 1, and improve the cleaning effect on the film 1.

[0036] It can be understood that the present application is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope of protection of the present application.

Claims

1. A cleaning device for a corona-treated PET film, characterized in that: it comprises a dust removal seat (2) with a notch (206) on the side, the inside of the dust removal seat (2) is further provided with an air charging channel (201) and an air exhaust channel (202), the outlet of the air charging channel (201) and the inlet of the air exhaust channel (202) are oppositely arranged and both communicate with the inside of the notch (206), the bottom of the notch (206) is provided with an ultrasonic generator (9), and the air charging channel (201) is provided with an ion generator (10); the notch (206) is arranged opposite and adjacent to the film (1), and the air flow sequentially passes through the air charging channel (201), the notch (206) and the air exhaust channel (202) to clean the film (1) through the air flow. The dust removal seat (2) is provided with two dust removal seats (2) which are symmetrically arranged on both sides of the film (1).

2. The cleaning device of the corona treated PET film according to claim 1, wherein, The film (1) vertically passes between the two dust removal seats (2), the outlet of the air charging channel (201) is arranged downward along the vertical direction, and the inlet of the air exhaust channel (202) is arranged upward along the vertical direction.

3. The cleaning device of the corona treated PET film according to claim 2, characterized in that, The bottom surface of the notch (206) is provided with a mounting hole (203), the ultrasonic generator (9) is inserted into the mounting hole (203), and the emission end of the ultrasonic generator (9) is flush with the bottom surface of the notch (206).

4. The cleaning device of the corona treated PET film according to claim 2, wherein, The side wall of the air charging channel (201) is provided with a through hole (204) communicating with the outside of the air charging channel (201), the ion generator (10) is sealingly inserted into the through hole (204), and the ion generator (10) extends into the inside of the air charging channel (201) through the through hole (204).

5. The cleaning device of the corona treated PET film according to claim 2, wherein, The inlet of the air charging channel (201) is connected with an air charging pump (5), the outlet of the air exhaust channel (202) is connected with an air exhaust pump (4), and the air charging amount of the air charging pump (5) is less than the air exhaust amount of the air exhaust pump (4).

6. The cleaning device of the corona treated PET film according to claim 2, wherein, The inside of the air charging channel (201) is provided with a dust removal filter element (12).

7. The cleaning apparatus for the corona treated PET film according to claim 1 or 2, wherein The dust removal seat (2) is provided with a displacement device for adjusting the distance between the dust removal seat (2) and the film (1).

8. The cleaning device of the corona treated PET film according to claim 2, wherein, The displacement device comprises a guide rail (7) perpendicular to the vertical plane where the film (1) is located, the dust removal seat (2) is fixedly connected with a sliding sleeve (205) in sliding fit with the guide rail (7), the guide rail (7) is provided with a power member in transmission connection with the dust removal seat (2), and the dust removal seat (2) is further fixedly connected with a distance sensor (11).

9. The apparatus for cleaning the corona treated PET film according to claim 8, wherein The width of the notch (206) is greater than the width of the film (1).

10. The apparatus for cleaning a corona treated PET film according to claim 1, wherein ​

Images