Air duct partition plate structure for corona processor

Abstract

The utility model relates to the technical field of corona processors, in particular to an air duct partition plate structure for a corona processor. The air duct partition plate structure for the corona processor comprises an air duct partition plate, the air duct partition plate is provided with a plurality of air suction holes which are arranged at intervals in the length direction of the air duct partition plate, flanges which extend in the vertical direction and are used for intercepting oil stains are formed in the hole edges of the air suction holes, and the flanges are connected with the hole edges of the air suction holes in a sealed mode; or, a blocking plug used for blocking oil stains is assembled at each air suction hole in a sealing mode, a through hole communicated with the air suction hole is formed in each blocking plug, and a set interval is formed between the top face of each blocking plug and the hole edge of the corresponding air suction hole. The technical problem that according to an existing air duct partition plate, when an exhaust fan cannot completely extract oily volatile substances, dropped oil stains cannot be effectively blocked, and treated materials are prone to being polluted can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of corona treatment machines, in particular to an air duct partition plate structure for a corona treatment machine. Background Art

[0002] Corona treatment machine is commonly known as corona machine, electronic impact machine, and electric spark machine in the packaging industry. It is academically called dielectric barrier discharge. It is mainly used for surface treatment of plastic film or plastic sheet products. Before the above materials are subjected to ink printing, lamination, film blowing, coating, gluing, material modification, polymerization, coating, casting, and pasting processing, in order to make the surface of the product have stronger adhesion (that is, a higher dyne coefficient) and prevent the raw materials from having printing color loss, loose composite pasting, uneven coating leakage, etc. during the production process, which affects the product quality, corona impact treatment must be carried out first.

[0003] The corona treatment machine is equipped with an air duct. During the corona treatment process, oxygen in the air will be ionized under the action of the high-voltage electric field to produce ozone. Ozone is a harmful gas that is harmful to human health, so it needs to be discharged from the corona treatment machine through the air duct; during the corona treatment process, some materials (especially certain plastics) may release oily volatiles, which may contaminate the inside of the equipment or affect the treatment effect, so they need to be discharged through the air duct; in addition, corona treatment will generate heat, and the air duct can also help cool the discharge electrode and the material surface to prevent the equipment from overheating. The air duct can also maintain a certain airflow to help the corona discharge be more uniform and improve the treatment effect.

[0004] The patent application document with application publication number CN117754898A discloses a modular pull-out exhaust duct for a corona machine, which includes an upper duct cover, side walls are fixedly installed on both sides of the upper duct cover, an air duct is provided on the upper side of the inner cavity of the upper duct cover, an air duct is provided in the air duct, an air duct partition is provided in the air duct, the air duct partition adopts an arc-shaped design, and a plurality of exhaust holes are provided thereon, and an electrode is provided on the lower side of the inner cavity of the upper duct cover. In actual use, the air duct is connected to an exhaust fan to suck the ozone and oily volatiles generated during the corona process from the exhaust holes into the air duct and then discharge them. However, when the exhaust fan cannot completely extract the oily volatile substances, the oily volatile substances will drip onto the air duct partition, and the existing air duct partition cannot effectively block or guide the oil stains outside the processing range of the processed material in the case of oil stains dripping, so that the processed material is contaminated by the oil stains dripping. Utility Model Content

[0005] The utility model provides an air duct partition structure for a corona treatment machine to solve the technical problem that the existing air duct partition cannot effectively block dripping oil stains and easily contaminates the treated material when the exhaust fan cannot completely extract the oily volatile substances.

[0006] In order to solve the above problems, the air duct partition structure for the corona treatment machine provided by the utility model adopts the following technical solutions:

[0007] The air duct baffle structure for a corona treatment machine comprises an air duct baffle, wherein a plurality of air suction holes are arranged at intervals along the length direction thereof, and a retaining edge extending in the up-down direction for intercepting oil stains is formed at the hole edge of each air suction hole, and the retaining edge is sealed and connected to the hole edge of the air suction hole;

[0008] Alternatively, each air intake hole is sealed with a stopper for intercepting oil stains, a through hole communicating with the air intake hole is provided on the stopper, and a set interval is provided between the top surface of the stopper and the edge of the air intake hole.

[0009] Beneficial effect: The utility model processes a rib or sets a plug at the air suction hole of the air duct partition. Even if the exhaust fan cannot completely extract the oily volatile substances, the dripping oil stains fall on the air duct partition. Under the interception effect of the rib and the plug, they will not flow to the processed materials through the air suction hole, thereby reducing the possibility of contamination of the processed materials.

[0010] Furthermore, the stopper is an elastic stopper, and a circle of annular grooves are provided in the circumferential direction of the stopper, and the annular grooves are used to be stuck at the edge of the air suction hole, and the outer diameter of the annular groove is larger than the outer diameter of the air suction hole.

[0011] Beneficial effect: the elastic plug is easy to install on the one hand, and can ensure the sealing between the elastic plug and the edge of the air intake hole when the elastic plug is stuck at the air intake hole under the elastic force of the elastic plug.

[0012] Furthermore, the stopper includes an intercepting section, an intermediate column section and a bottom section which are integrally formed and arranged in sequence from top to bottom, the intercepting section is located above the air suction hole, and has an intercepting cone surface with an outer diameter gradually decreasing from top to bottom; the intermediate column section is located in the air suction hole, and the bottom section is located below the air suction hole; the minimum outer diameters of the intercepting section and the bottom section are both larger than the outer diameter of the intermediate column section.

[0013] Beneficial effect: The interception cone is inclined upward from bottom to top, and the dripping oil stains will be blocked by the interception cone and guided to both sides, avoiding the accumulation of oil stains in the air duct partition.

[0014] Furthermore, the bottom end of the bottom segment is rounded.

[0015] Beneficial effect: Easy to install.

[0016] Furthermore, the air duct partition is provided with oil guide holes for draining oil at positions close to both ends thereof.

[0017] Beneficial effect: The oil guide hole can guide the oil stains to drip to the appropriate discharge position, without affecting the normal corona treatment of the treated material and without contaminating other structures on the corona treatment machine.

[0018] Furthermore, the through hole is coaxial with the air suction hole.

[0019] Furthermore, the intervals between any two adjacent air suction holes are equal.

[0020] Beneficial effect: Make the airflow in the air duct more uniform, ensuring the uniformity of discharge.

[0021] Furthermore, the air duct partition is in the shape of a circular tube.

[0022] Beneficial effects: easy to process and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present invention will become easy to understand. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 It is a schematic diagram of embodiment 1 of the air duct partition structure for a corona treatment machine of the utility model;

[0025] Figure 2 for Figure 1 A cross-sectional view of

[0026] Figure 3 for Figure 2 Magnified view at A in the middle;

[0027] Figure 4 for Figure 1 Schematic diagram of the structure of the middle air duct partition;

[0028] Figure 5 for Figure 1 The structural diagram of the middle stopper;

[0029] Figure 6 It is a schematic diagram of embodiment 2 of the air duct partition structure for a corona treatment machine of the utility model.

[0030] Description of reference numerals:

[0031] 1. Air duct partition; 2. Air intake hole; 3. Blocking plug; 31. Annular groove; 32. Intercepting section; 321. Intercepting cone; 33. Middle column section; 34. Bottom section; 35. Through hole; 4. Oil guide hole; 201. Air duct partition. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0034] Embodiment 1 of the air duct partition structure for a corona treatment machine provided by the utility model:

[0035] like Figure 1 and Figure 2 As shown, the structure of the air duct partition plate 1 for the corona treatment machine includes an air duct partition plate 1 and a plurality of blocking plugs 3. In this embodiment, as Figure 4 As shown, the air duct partition 1 is in the shape of a circular tube, and is provided with a plurality of air intake holes 2 arranged at intervals along its axial direction. The air intake holes 2 are circular holes, and the intervals between any two adjacent air intake holes 2 are equal. Figure 3 As shown, the stopper 3 is used to intercept dripping oil stains, and multiple stoppers 3 are correspondingly connected to each suction hole 2.

[0036] The stopper 3 is an elastic stopper, such as Figure 5 As shown, it includes an interception section 32, an intermediate column section 33 and a bottom section 34 which are integrally formed and arranged in sequence from top to bottom. The interception section 32 is located above the air intake hole 2, so that there is a set interval between the top surface of the stopper 3 and the edge of the air intake hole 2, and the interception section 32 has an interception cone 321 whose outer diameter gradually decreases from top to bottom. The intermediate column section 33 is an equal diameter section and is located inside the air intake hole 2. The bottom section 34 is located below the air intake hole 2, and the bottom end of the bottom section is rounded. The minimum outer diameters of the interception section 32 and the bottom section 34 are both larger than the outer diameter of the intermediate column section 33, so that a circle of annular grooves 31 are formed at the outer circumference of the intermediate column section 33, and the outer diameter of the annular grooves 31 is larger than the outer diameter of the air intake hole 2, and the annular grooves 31 are used to be stuck at the edge of the air intake hole 2. The stopper 3 is also provided with a through hole 35 that penetrates the intercepting section 32, the middle column section 33 and the bottom section 34 from top to bottom. When installing, the stopper 3 is squeezed to deform until the bottom section 34 completely passes through the air suction hole 2 and then released. Under the action of elastic force, the annular groove 31 is clamped at the edge of the air suction hole 2, and the edge of the hole and the middle column section 33 are in a sealed state. After the stopper 3 is installed in place, the through hole 35 on the stopper 3 is coaxial with the air suction hole 2.

[0037] Oil guide holes 4 for draining oil are respectively provided on the air duct partition plate 1 near both ends thereof, and all the air intake holes 2 are located between the two oil guide holes 4. The oil guide holes 4 can be connected to the oil guide pipe to guide the dripping oil stains to a place where they do not affect other structures on the corona treatment machine.

[0038] It should be noted that, in actual application, the plug 3 is not limited to the elastic plug in the present application, and any structure and installation method that can form a step barrier on the air duct partition 1 can be adopted, such as gluing, using a plug sleeve made of various metals or insulating materials, or a groove sealing method.

[0039] The air intake hole 2 is not limited to the circular hole in the present application, and may also be in other shapes, such as a polygonal hole, and the shape of the corresponding blocking plug 3 may be adapted to the shape of the air intake hole 2.

[0040] The utility model provides a blocking plug 3 at the air intake hole 2 to form a step barrier on the air duct partition 1. When the exhaust fan connected to the air duct cannot completely extract the oily volatile substances generated in the corona process of the material, the oil stains dripping in the air duct partition 1 are intercepted and blocked by the step barrier formed by the blocking plug 3, and will not flow from the air intake hole 2 to the processed material, thereby reducing or even avoiding the risk of the processed material being contaminated by the oil stains. Moreover, under the action of the intercepting cone surface 321 of the blocking plug 3, the oil stains dripping on the air duct partition 1 will flow to both sides and flow to the oil guide hole 4 for discharge.

[0041] Embodiment 2 of the air duct partition structure for a corona treatment machine provided by the utility model:

[0042] The main difference between this embodiment and the first embodiment is that in the first embodiment, the air duct baffle adopts a circular tubular structure, while in the present embodiment, Figure 6 As shown, the air duct baffle 201 is an arc-shaped structure, and a stopper 3 is also installed at the air suction hole 2. Of course, in other embodiments, the air duct baffle can also adopt a regular shape structure such as a rectangular tubular structure, or adopt a special-shaped structure.

[0043] Embodiment 3 of the air duct partition structure for a corona treatment machine provided by the utility model:

[0044] The main difference between it and Example 1 is:

[0045] In Example 1, a stopper is installed at the position of each air intake hole to intercept and block the oil stains. In this embodiment, a stopper extending in the up-down direction is processed at the edge of each air intake hole to block the oil stains. The stopper can be formed in a variety of ways, such as bonding the stopper, welding the stopper, using sheet metal forming and other processes. The stopper can block the oil stains and prevent contamination of the processed material.

[0046] In the description of the present specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. An air duct partition structure for a corona treatment machine, comprising an air duct partition, wherein the air duct partition is provided with a plurality of air suction holes arranged at intervals along the length direction thereof, wherein: A rib extending in the up-down direction is formed at the edge of each air intake hole for intercepting oil stains, and the rib is sealed and connected to the edge of the air intake hole; or, a plug is sealed and assembled at each air intake hole for intercepting oil stains, and a through hole communicating with the air intake hole is formed on the plug, and a set interval is provided between the top surface of the plug and the edge of the air intake hole.

2. The air duct partition structure for a corona treatment machine according to claim 1, characterized in that: The stopper is an elastic stopper, and a circle of annular grooves are arranged in the circumferential direction of the stopper. The annular grooves are used to be stuck at the edge of the air suction hole, and the outer diameter of the annular grooves is larger than the outer diameter of the air suction hole.

3. The air duct partition structure for a corona treatment machine according to claim 2, characterized in that: The blocking plug includes an intercepting section, an intermediate column section and a bottom section which are integrally formed and arranged in sequence from top to bottom. The intercepting section is located above the air suction hole, and has an intercepting cone surface with an outer diameter gradually decreasing from top to bottom; the intermediate column section is located in the air suction hole, and the bottom section is located below the air suction hole; the minimum outer diameters of the intercepting section and the bottom section are both larger than the outer diameter of the intermediate column section.

4. The air duct partition structure for a corona treatment machine according to claim 3, characterized in that: The bottom end of the bottom section is rounded.

5. The air duct partition structure for a corona treatment machine according to any one of claims 1 to 4, characterized in that: The air duct partition is provided with oil guide holes for draining oil at positions close to both ends thereof.

6. The air duct partition structure for a corona treatment machine according to any one of claims 1 to 4, characterized in that: The through hole is coaxial with the air suction hole.

7. The air duct partition structure for a corona treatment machine according to any one of claims 1 to 4, characterized in that: The intervals between any two adjacent air intake holes are equal.

8. The air duct partition structure for a corona treatment machine according to any one of claims 1 to 4, characterized in that: The air duct partition is in a circular tube shape.

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