Novel discharge structure of sheet-fed corona machine

Abstract

The utility model discloses a novel discharge structure of a sheet-fed corona machine, which relates to the technical field of sheet-fed corona machines and comprises a corona discharge frame, a fixed wall plate, a corona roller, a fixed-distance connecting rod, a corona head insulation fixed plate, a corona head, an insulation fixed block, a discharge profile connecting plate, a corona discharge profile, a front discharge plate, a rear discharge plate and an insulation conveying belt. After the corona machine is connected with conventional voltage, the corona high-voltage generator converts the incoming conventional voltage into extra-high voltage, and finally the corona head is connected with the discharge plate to form positive and negative electrodes with the corona roller above the insulation conveying belt to generate high-voltage arc, and the arc acts on the surface of a base material, so that the chemical property of the surface of the base material is improved; and high-voltage electricity is not accessed to the corona roller, so that the resistance is reduced, the current is fully released, and the service life of the corona roller is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of sheet-fed corona treatment technology, specifically a novel discharge structure for sheet-fed corona treatment. Background Technology

[0002] Sheet-fed corona treatment machines are widely used in surface modification treatments of specialty papers and plastic films. They convert mains power into high-frequency, high-voltage electricity to discharge through specialized electrode frames, generating corona discharge that treats the surface of the material, improving its chemical properties and making it easier to bond, print, and process.

[0003] The existing sheet corona discharge structure consists of a corona machine frame (1), a paper feeding drive roller (2), a paper feeding drive roller bearing seat (3), a paper feeding drive roller adjusting screw (4), a paper feeding passive roller (5), a paper feeding passive roller bearing seat (6), a stainless steel belt support plate (7), a conveyor belt (8), a corona discharge frame fixing frame (9), a corona discharge frame (10), a corona roller (11), a corona high voltage generator (12), and a corona head (13).

[0004] The corona machine frame (1) is equipped with a paper feeding drive roller (2), a paper feeding drive roller adjusting screw (4), and a paper feeding passive roller (5). A conveyor belt is fitted between the paper feeding drive roller and the paper feeding passive roller. A stainless steel belt support plate (7) is installed under the insulated conveyor belt (8). Adjusting the paper feeding drive roller adjusting screw can make the conveyor belt tension appropriate to meet the normal paper feeding requirements. The corona machine frame is equipped with a corona discharge frame (10) and a corona high voltage generator (12). The corona discharge frame is equipped with a corona roller (11) and a corona head (13). After the corona machine is connected to a conventional voltage, it generates a corona high voltage generator. The generator (12) converts the normal voltage to ultra-high voltage and finally connects to the corona roller (11) through the corona head, so that the corona roller (11) is energized. It is isolated by the insulated conveyor belt (8) so that the corona roller (11) and the stainless steel belt support plate (7) under the conveyor belt form positive and negative poles and generate a high voltage arc. When the substrate that needs to be corona treated is sent to the corona roller through the conveyor belt, the arc will act on the surface of the substrate, thereby improving the chemical properties of the substrate surface and making it easier to bond, print and process. After the substrate continues to be conveyed out of the range of the corona roller, the corona treatment is completed.

[0005] However, the discharge structure of the existing single-sheet corona generator still has the following drawbacks:

[0006] 1. High-voltage discharge occurs on the upper surface of the belt, with a large amount of external leakage, posing numerous safety hazards;

[0007] 2. The high-voltage line first passes through the bearing box, then through the bearing, and finally through the bearing to the roller core. When the high-voltage electricity passes through the running bearing, the resistance is relatively high due to the grease inside the bearing, which affects the current release and can easily damage the bearing lubrication, reducing the bearing's service life.

[0008] Therefore, there is an urgent need for a new discharge structure for a single-sheet corona generator to solve the above problems. Utility Model Content

[0009] The purpose of this utility model embodiment is to provide a novel discharge structure for a single-sheet corona generator to solve the problems mentioned in the background art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A novel discharge structure for a single-sheet corona treatment machine includes a corona discharge frame and a fixed wall panel. The corona discharge frame is located on top of the fixed wall panel. Both the corona discharge frame and the fixed wall panel are connected to the frame body of the corona treatment machine. The corona discharge frame is rotatably connected to corona rollers. Several groups of corona rollers are arranged in a straight line with equal spacing. The fixed wall panel is connected to a fixed-distance connecting rod and to an insulating fixing plate for the corona head. The insulating fixing plate for the corona head is connected to the corona head. The corona head is electrically connected to a high-voltage corona generator. The fixed wall panel is connected to an insulating fixing block. Several sets of insulating fixing blocks are arranged in a circumferential pattern with equal spacing. The insulating fixing blocks are connected to the discharge profile connecting plate, which is connected to the corona discharge profile. A front discharge plate is provided on the front side of the corona discharge profile, and a rear discharge plate is provided on the rear side of the corona discharge profile. The corona discharge profile is electrically connected to the corona head. An insulating conveyor belt is provided between the corona roller and the corona discharge profile. The insulating conveyor belt is connected to the conveyor roller, which is rotatably connected to the fixed wall plate. The conveyor roller is connected to the output end of the drive component, which is connected to the fixed wall plate.

[0012] As a further embodiment of this utility model: the corona roller is located on top of the corona discharge profile, and the number of the two is matched.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The corona head is fixed to the fixed wall panel by the corona head insulation fixing plate, with little exposed part and no safety hazard;

[0015] 2. After the corona machine is connected to a conventional voltage, the conventional voltage is converted to an ultra-high voltage by a corona high-voltage generator. Finally, the corona head is connected to the discharge plate, forming positive and negative poles with the corona roller above the insulated conveyor belt, generating a high-voltage arc. The arc acts on the surface of the substrate, thereby improving the chemical properties of the substrate surface, making it easier to bond, print and process. The high-voltage electricity is connected to the corona roller, reducing resistance, allowing the current to be released fully, and improving the service life of the corona roller. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the discharge structure of a single-sheet corona generator in the prior art.

[0017] Figure 2 This is a schematic diagram of a novel discharge structure for a single-sheet corona generator according to an embodiment of this utility model.

[0018] Figure 3 This is a front view of a novel discharge structure for a single-sheet corona generator according to an embodiment of this utility model.

[0019] Figure 4 This is a bottom view of a novel discharge structure for a single-sheet corona generator according to an embodiment of this utility model.

[0020] In the diagram: 1. Corona discharge frame; 2. Corona roller; 3. Fixed wall panel; 4. Fixed-distance connecting rod; 5. Insulating fixing block; 6. Discharge profile connecting plate; 7. Front discharge plate; 8. Corona discharge profile; 9. Rear discharge plate; 10. Corona head insulating fixing plate; 11. Corona head; 12. Insulating conveyor belt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this embodiment of the utility model, please refer to Figures 2 to 4A novel discharge structure for a single-sheet corona generator includes a corona discharge frame 1 and a fixed wall plate 3. The corona discharge frame 1 is located on top of the fixed wall plate 3. Both the corona discharge frame 1 and the fixed wall plate 3 are connected to the frame body of the corona generator (not shown in the figure). The corona discharge frame 1 is rotatably connected to a corona roller 2. The corona roller 2 has several groups arranged in a straight line with equal spacing. The fixed wall plate 3 is connected to a fixed-distance connecting rod 4. The fixed wall plate 3 is connected to a corona head insulating fixing plate 10. The corona head insulating fixing plate 10 is connected to a corona head 11. The corona head 11 is electrically connected to a corona high-voltage generator (not shown in the figure). The fixed wall plate 3 is connected to an insulating fixing block 5. The insulating fixing blocks 5 are provided in several groups and are arranged in a circumferential manner with equal spacing. The insulating fixing blocks 5 are connected to the discharge profile connecting plate 6. The discharge profile connecting plate 6 is connected to the corona discharge profile 8. The front side of the corona discharge profile 8 is provided with a front discharge plate 7. The rear side of the corona discharge profile 8 is provided with a rear discharge plate 9. The corona discharge profile 8 is electrically connected to the corona head 11. An insulating conveyor belt 12 is provided between the corona roller 2 and the corona discharge profile 8. The insulating conveyor belt 12 is connected to the conveyor roller (not shown in the figure). The conveyor roller is rotatably connected to the fixed wall plate 3. The conveyor roller is connected to the output end of the drive component (not shown in the figure). The drive component is connected to the fixed wall plate 3.

[0023] The corona roller 2 is located on top of the corona discharge profile 8, and the number of the two is matched.

[0024] After the corona machine is connected to a conventional voltage, a high-voltage corona generator (not shown in the figure) converts the conventional voltage into an ultra-high voltage. This ultra-high voltage is then connected to the corona discharge profile 8 via the corona head 11, and then to the front discharge plate 7 and the rear discharge plate 9. This forms positive and negative poles with the corona roller 2 above the insulated conveyor belt 12, generating a high-voltage arc. The drive unit rotates the conveyor roller, which in turn rotates the insulated conveyor belt 12, conveying the substrate to be corona treated. When the substrate passes under the corona roller 2 via the insulated conveyor belt 12, the arc acts on the substrate surface, improving its chemical properties and making it easier to bond, print, and process. Once the substrate is conveyed out of the corona roller 2 area, the corona treatment is complete. The drive unit can be a stepper motor, servo motor, etc.

[0025] In this embodiment, the insulated conveyor belt 12 is connected to a belt tension adjusting wheel, which is rotatably connected to a threaded rod, which is threadedly connected to a fixed wall plate 3. By rotating the threaded rod, the threaded rod drives the belt tension adjusting wheel to move longitudinally, thereby adjusting the tension of the insulated conveyor belt 12.

[0026] The working principle of this utility model is as follows: After the corona machine is connected to a conventional voltage, the conventional voltage is converted into an ultra-high voltage through a corona high voltage generator (not shown in the figure). The ultra-high voltage is connected to the corona discharge profile 8 through the corona head 11, and then connected to the front discharge plate 7 and the rear discharge plate 9, forming positive and negative poles with the corona roller 2 above the insulated conveyor belt 12, thereby generating a high voltage arc. The driving component drives the conveyor roller to rotate, and the conveyor roller drives the insulated conveyor belt 12 to rotate, conveying the substrate that needs to be corona treated. When the substrate is delivered to the area below the corona roller 2 through the insulated conveyor belt 12, the arc will act on the surface of the substrate, thereby improving the chemical properties of the substrate surface, making it easier to bond, print and process. After the substrate continues to be conveyed out of the range of the corona roller 2, the corona treatment is completed.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel discharge structure for a single-sheet corona generator, comprising a corona discharge frame and a fixed wall panel, wherein the corona discharge frame is located on top of the fixed wall panel, and both the corona discharge frame and the fixed wall panel are connected to the frame body of the corona generator, characterized in that, The corona discharge frame is rotatably connected to the corona rollers. Several sets of corona rollers are arranged in a straight line with equal spacing. The fixed wall panel is connected to the fixed-distance connecting rod. The fixed wall panel is connected to the corona head insulating fixing plate. The corona head insulating fixing plate is connected to the corona head. The corona head is electrically connected to the corona high-voltage generator. The fixed wall panel is connected to the insulating fixing block. Several sets of insulating fixing blocks are arranged in a circumferential line with equal spacing. The insulating fixing block is connected to the discharge profile connecting plate. The discharge profile connecting plate is connected to the corona discharge profile. A front discharge plate is provided on the front side of the corona discharge profile, and a rear discharge plate is provided on the rear side. The corona discharge profile is electrically connected to the corona head. An insulating conveyor belt is provided between the corona rollers and the corona discharge profile. The insulating conveyor belt is connected to the conveyor roller. The conveyor roller is rotatably connected to the fixed wall panel. The conveyor roller is connected to the output end of the drive component. The drive component is connected to the fixed wall panel.

2. The novel discharge structure for a single-sheet corona generator according to claim 1, characterized in that, The corona rollers are located on top of the corona discharge profile, and the number of each roller is matched.

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