Injection device

Abstract

The utility model discloses a spraying device which comprises a pipe body, an ozone outlet pipe, a spraying nozzle and a spraying nozzle, an opening groove is formed in the pipe body in the length direction, and the two ends of the pipe body are suitable for being communicated with the ozone outlet pipe; and the gas distribution plate is of a plate-shaped structure, the gas distribution plate is arranged on the pipe body and covers the opening groove, and a plurality of gas distribution holes are formed in the gas distribution plate. A pipe body and a gas distribution plate are arranged, an open groove is formed in the pipe body in the length direction, a plurality of gas distribution holes are formed in the gas distribution plate, and the open groove is covered with the gas distribution plate; when the two ends of the pipe body are communicated with the ozone outlet pipe, ozone enters the pipe from the two ends of the pipe body and is sprayed out from the gas distribution holes in the gas distribution plate, so that the ozone is sprayed in a surface manner, a film is located in an ozone gas diffusion environment, the gas distribution uniformity of the ozone on the surface of the film is improved, the viscosity of the film is enhanced, the adhesion effect of the film is promoted, and the service life of the film is prolonged. Meanwhile, the utilization rate of ozone is increased, and the yield of products is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of film laminating processing devices, and particularly relates to a spraying device. Background Art

[0002] Film laminating is a process in post-printing processing. It involves bonding a plastic film coated with an adhesive to a paper printed matter through heating and pressing to form a paper-plastic integrated product. It is one of the common post-printing processing techniques for paper printed matters. For printed matters after film laminating, due to an additional thin and transparent plastic film on the surface, the surface becomes smoother and brighter. This not only improves the gloss and fastness of the printed matter and extends its service life but also the plastic film plays protective roles such as moisture-proof, waterproof, anti-fouling, wear-resistant, fold-resistant, and chemically corrosion-resistant. The surface characteristics of different plastic films vary greatly due to factors such as molecular structure, polar groups, crystallinity, and chemical stability. These factors have a greater impact on the bonding fastness of printing inks, the bonding strength of composite films, etc.

[0003] A Chinese patent with the publication number CN214354916U discloses a special spraying device for a film laminator, which includes an ozone air pipe, a cooling water pipe, and a nozzle bracket. The ozone air pipe is a square pipe with a rectangular cross-section. An air inlet valve is connected to each end of the ozone air pipe. Along one surface of the ozone air pipe in the length direction, a number of ozone spraying holes communicating with its interior are arranged at intervals. The cooling water pipe is a square pipe with a rectangular cross-section and is sleeved outside the ozone air pipe. The surface of the ozone air pipe with ozone spraying holes is in close contact with one surface of the cooling water pipe. A strip-shaped hole is provided on the surface of the cooling water pipe in contact with the ozone air pipe corresponding to the ozone spraying holes on the ozone air pipe. The two ends of the ozone air pipe protrude from the ends of the cooling water pipe. The space between the two ends of the cooling water pipe and the outer surface of the ozone air pipe is sealed. An inlet water valve and an outlet water valve are respectively connected to the two ends of the cooling water pipe. A nozzle bracket is respectively arranged at the two ends of the ozone air pipe.

[0004] The above device can increase the viscosity of the film laminate and promote the adhesion effect by performing ozone treatment on the film laminate surface. However, only a number of ozone spraying holes are arranged at intervals along one surface of the ozone air pipe of the above device, and ozone diffuses at the ozone spraying holes, and there is no ozone diffusion at the positions without holes, resulting in uneven ozone gas distribution on the film laminate surface. In view of this, how to design a technology that can improve the uniformity of ozone gas distribution on the film laminate surface is the technical problem to be solved by the utility model. Summary of the Utility Model

[0005] The utility model provides a spraying device to achieve uniform ozone gas distribution on the film laminate surface.

[0006] To achieve the above technical objectives, the present utility model adopts the following technical solutions:

[0007] In one aspect, the present utility model provides an injection device, comprising: a tube body, an opening groove is formed along the length direction on the tube body, and both ends of the tube body are adapted to communicate with an ozone outlet pipe;

[0008] A gas distribution plate, the gas distribution plate is in a plate-like structure, the gas distribution plate is arranged on the tube body and covers the opening groove, and a plurality of gas distribution holes are formed on the gas distribution plate.

[0009] In some embodiments of the present application, the injection device further comprises:

[0010] A clamping groove plate, the clamping groove plate is symmetrically welded on the groove wall of the opening groove, and the gas distribution plate is welded on the clamping groove plate.

[0011] In some embodiments of the present application, the clamping groove plate is in a U-shaped or C-shaped structure, and the open end of the clamping groove plate faces the gas distribution plate.

[0012] In some embodiments of the present application, the gas distribution holes are evenly arranged on the gas distribution plate, and the porosity of the gas distribution plate is 35% - 50%.

[0013] In some embodiments of the present application, the aperture of the gas distribution holes is 50μm - 100μm.

[0014] In some embodiments of the present application, the included angle between the connection line between the opening groove and the axis of the tube body is α, 60° ≤ α ≤ 90°.

[0015] In some embodiments of the present application, the tube body and the gas distribution plate are made of stainless steel or titanium metal materials.

[0016] In some embodiments of the present application, the shape of the tube body is a circular tube or a square tube.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are: by setting the tube body and the gas distribution plate, an opening groove is formed along the length direction on the tube body, a plurality of gas distribution holes are formed on the gas distribution plate, and the gas distribution plate covers the opening groove; when both ends of the tube body are connected to the ozone outlet pipe, ozone enters the tube from both ends of the tube body and sprays out from the gas distribution holes on the gas distribution plate, enabling the ozone to form a surface spray, so that the film is in an environment filled with ozone gas, improving the uniformity of ozone gas distribution on the film surface, facilitating enhancing the adhesion of the film, promoting the adhesion effect of the film, and at the same time improving the utilization rate of ozone, which is beneficial to ensuring the yield of the product. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic structural diagram of an embodiment of the injection device provided by the present invention;

[0020] Figure 2 Cross-sectional view of an embodiment of the injection device provided by the present invention;

[0021] Figure 3 Cross-sectional view of the pipe body of the injection device provided by the present invention;

[0022] Figure 4 Schematic structural diagram of another embodiment of the injection device provided by the present invention.

[0023] Explanation of reference numerals:

[0024] 1. Pipe body; 11. Open slot;

[0025] 2. Air distribution plate; 21. Air distribution holes;

[0026] 3. Card slot plate. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the accompanying drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0032] Ozone has very strong oxidation characteristics. It can not only quickly kill harmful pathogens such as bacteria, fungi, mycoplasma, and even viruses, but also produce no secondary pollution during the process of disinfection and sterilization. It is widely used in fields such as industrial sewage treatment, tap water disinfection, and food processing. Under normal temperature and pressure, ozone molecules are unstable and easily decomposed, and the decomposition product is oxygen. Therefore, it needs to be produced and used on-site. Currently, there are various methods for preparing ozone, including the electrochemical method, ultraviolet irradiation method, dielectric barrier discharge method, etc. Among them, the dielectric barrier discharge method requires simple raw materials, and the structure of the ozone preparation device is simple. Therefore, in industrial applications, ozone is mainly produced by the dielectric barrier discharge method.

[0033] Currently, ozone is mainly prepared by an ozone generator. The ozone generator generates ozone by applying high-voltage discharge to the oxygen in the air.

[0034] Using the principle that ozone has strong oxidizing properties, by treating the film with ozone, ozone can oxidize the molecules on the surface of the film, converting them from non-polar to polar, increasing the surface tension of the film, and thus improving the adhesion of the film.

[0035] In one aspect, embodiments of the present disclosure provide a spraying device, which includes a pipe body 1 and a gas distribution plate 2.

[0036] An opening groove 11 is formed along the length direction on the pipe body 1, and both ends of the pipe body 1 are adapted to be connected to an ozone outlet pipe;

[0037] Specifically, the opening groove 11 may penetrate the entire pipe body 1, or one end of the opening groove 11 may penetrate the pipe body 1, or the opening groove 11 may be provided inside the pipe body 1 without penetrating both ends of the pipe body 1, and it can be specifically set according to actual needs.

[0038] Of course, in order to control the flow rate of ozone gas, valves are respectively provided at both ends of the pipe body.

[0039] Specifically, the opening groove 11 is rectangular, and the opening groove 11 can be formed by cutting the arc-shaped plate on the surface of the pipe body 1.

[0040] The gas distribution plate 2 has a plate-like structure, the gas distribution plate 2 is arranged on the pipe body 1 and covers the opening groove 11, and a plurality of gas distribution holes 21 are formed on the gas distribution plate 2.

[0041] Specifically, by setting the pipe body 1 and the gas distribution plate 2, an opening groove 11 is formed along the length direction on the pipe body 1, a plurality of gas distribution holes 21 are formed on the gas distribution plate 2, and the gas distribution plate 2 covers the opening groove 11; when both ends of the pipe body 1 are connected to the ozone outlet pipe, ozone enters the pipe from both ends of the pipe body 1 and is ejected from the gas distribution holes 21 on the gas distribution plate 2, enabling the ozone to form a surface spray, avoiding the point spray in the prior art; thus, the film is in an environment filled with ozone gas, improving the uniformity of ozone gas distribution on the surface of the film, being beneficial to enhancing the viscosity of the film, promoting the adhesion effect of the film, and at the same time improving the utilization rate of ozone, which is beneficial to ensuring the yield of the product.

[0042] In the prior art, ozone is in the form of point spray, which is greatly affected by pressure fluctuations. Sometimes, the needle-piercing phenomenon occurs due to hole blockage, and sometimes, the surging phenomenon occurs due to excessive local pressure, resulting in uneven ozone gas distribution on the surface of the film. However, in this application, by setting the gas distribution plate 2 to form a surface spray, the film can be in a uniform ozone environment.

[0043] In some embodiments of the present application, the spraying device further includes a clamping groove plate 3.

[0044] The clamping groove plate 3 is symmetrically welded to the groove wall of the opening groove 11, and the gas distribution plate 2 is welded to the clamping groove plate 3.

[0045] Specifically, by setting the slot plate 3, the slot plate 3 is symmetrically welded on the slot wall of the open slot 11, and the air distribution plate 2 is welded on the slot plate 3. The slot plate 3 increases the surface area, which makes it convenient to fix the air distribution plate 2 on the tube body 1 and improves the stability of the air distribution plate 2.

[0046] In some embodiments of the present application, the slot plate 3 is in a U-shaped or C-shaped structure, and the opening end of the slot plate 3 faces the air distribution plate 2 .

[0047] Specifically, the slot plate 3 is a U-shaped or C-shaped structure with one end open, and the open end of the slot plate 3 faces the air distribution plate 2, so that the upper and lower ends of the air distribution plate 2 can be inserted into the slot plate 3, thereby improving the connection strength between the air distribution plate 2 and the slot plate 3.

[0048] In some embodiments of the present application, the air distribution holes 21 are evenly arranged on the air distribution plate 2, and the porosity of the air distribution plate 2 is 35%-50%.

[0049] Specifically, by evenly arranging the air distribution holes 21 on the air distribution plate 2, and the porosity on the air distribution plate 2 is as high as 35%~50%, the resistance to ozone is small. In this way, when the ozone fills the tube body 1, the ozone will be dispersed from the air distribution holes 21 on the air distribution plate 2 in the form of a surface spray. The diffused ozone can fully contact the surface of the coating, which is beneficial to enhance the adhesion of the coating.

[0050] In the present application, both ends of the tube body 1 are connected to the ozone outlet pipe, and the outlet pressure of ozone is ≤0.095MPa±5%. Under this pressure, ozone can fill the tube body 1 and be dispersed from the air distribution plate 2.

[0051] In practical applications, there is a certain angle between the outlet direction of ozone and the coating, which allows the diffused ozone to fully contact the coating.

[0052] In some embodiments of the present application, the diameter of the air distribution holes 21 is 50 μm-100 μm.

[0053] Specifically, the aperture of the existing ozone injection hole is 1mm~3mm, the aperture is relatively large, and the distance between adjacent injection holes is large, so that a large amount of ozone is sprayed out and does not have time to fully contact with the film, and is easily lost, resulting in low ozone utilization rate; while the aperture of the air hole 21 of the present application is smaller, and a uniform injection surface is formed after the ozone is sprayed out, so that the ozone is fully in contact with the film, thereby improving the utilization rate of the ozone.

[0054] In some embodiments of the present application, the angle between the line connecting the opening groove 11 and the axis of the tube body 1 is α, and 60°≤α≤90°.

[0055] Specifically, by setting the included angle between the connection line between the opening groove 11 and the axis of the pipe body 1 as α, where 60° ≤ α ≤ 90°, the area of the air distribution plate 2 installed on the opening groove 11 is appropriate. While ensuring the ozone injection surface, it can also make the plastic film in an ozone-permeated environment, which is beneficial to promoting the adhesion effect of the plastic film, reducing the phenomenon of air bubbles generated during the process of packaging the plastic film, and improving the yield rate.

[0056] In some embodiments of the present application, the pipe body 1 and the air distribution plate 2 are made of stainless steel or titanium metal materials.

[0057] Specifically, by making the pipe body 1 and the air distribution plate 2 of stainless steel or titanium metal materials, the stainless steel and titanium materials have good stability, high mechanical strength, and are not easily corroded by ozone.

[0058] Exemplarily, the stainless steel can be 304 stainless steel or 316L stainless steel.

[0059] In some embodiments of the present application, the shape of the pipe body 1 is a circular pipe or a square pipe.

[0060] Specifically, by setting the shape of the pipe body 1 as a circular pipe or a square pipe, it is convenient for production and processing.

[0061] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", 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 present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A spraying device, characterized in that: include: A tube body, wherein an open groove is formed on the tube body along the length direction, and both ends of the tube body are suitable for connecting to the ozone outlet pipe; The air distribution plate is in a plate-like structure, is arranged on the tube body and covers the open groove, and has a plurality of air distribution holes formed on the air distribution plate.

2. The spraying device according to claim 1, characterized in that The injection device also includes: A slot plate is symmetrically welded on the slot wall of the open slot, and the air distribution plate is welded on the slot plate.

3. The spraying device according to claim 2, characterized in that The slot plate is in a U-shaped or C-shaped structure, and the opening end of the slot plate faces the air distribution plate.

4. The spraying device according to claim 1, characterized in that The air distribution holes are evenly arranged on the air distribution plate, and the porosity of the air distribution plate is 35% to 50%.

5. The spraying device according to claim 1, characterized in that The diameter of the air pores is 50 μm to 100 μm.

6. The spraying device according to claim 1, characterized in that The angle between the opening groove and the axis of the tube body is α, 60°≤α≤90°.

7. The spraying device according to claim 1, characterized in that The tube body and the gas distribution plate are made of stainless steel or titanium.

8. The spraying device according to claim 1, characterized in that The shape of the tube body is a round tube or a square tube.

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