Drying device for UV (ultraviolet) ink on PETG (polyethylene terephthalate glycol) heat shrink film

Abstract

The utility model discloses a drying device for UV (ultraviolet) ink on a PETG (polyethylene terephthalate glycol) heat shrink film, which relates to the technical field of UV ink drying and comprises a shell, guide rollers are uniformly arranged on one side of the shell, UV curing lamps are uniformly arranged on the upper inner wall and the lower inner wall of the shell, connecting columns are uniformly arranged between the opposite surfaces of the shell, and water cooling rollers are arranged on the outer surfaces of the connecting columns. Fixing covers are arranged on the two sides of the water-cooling roller and fixedly arranged on the inner wall of the shell, the fixing cover located on one side of the water-cooling roller is sequentially provided with a water inlet pipe and a water outlet pipe, and a water tank is arranged on the outer wall of one side of the shell and communicates with the water inlet pipe and the water outlet pipe; an air cooling assembly is arranged in the shell, and the UV ink on the PETG heat shrinkage film can be prevented from making contact with the outer surfaces of the water cooling rollers by arranging the multiple oval water cooling rollers, so that the problem that the UV ink on the PETG heat shrinkage film is not evenly distributed due to the fact that the UV ink adheres to the outer surfaces of the rollers can be effectively solved; therefore, the appearance and quality of printed matters can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of UV ink drying, specifically to a drying device for UV ink on PETG heat shrinkable film. BACKGROUND

[0002] Heat shrinkable film is used for the sale and transportation of various products, and its main function is to stabilize, cover and protect the products. The shrinkable film must have high puncture resistance, good shrinkability and certain shrinkage stress. During the shrinkage process, the film cannot produce holes;

[0003] The utility model discloses a kind of heat shrinkable film UV ink drying devices, relate to heat shrinkable film printing technical field, including shell, the shell both ends are open type structure and are set, the shell outside is fixedly connected with communicating pipe, the shell outer wall is equipped with first through-hole, the shell inside is symmetrically installed with UV curing lamp, the UV curing lamp symmetrically installed is rotatably connected with roller, and roller inside is hollow structure, gas hole is equipped at the roller outer wall, the roller both ends are fixedly connected with shaft, the shaft end of the roller one end is equipped with second through-hole, and second through-hole is connected with roller inner cavity conduction, the shell bottom is fixedly connected with base, when the utility model is driven to rotate by heat shrinkable film adhering roller, cold gas overflowed at gas hole can be cooled heat shrinkable film, can effectively prevent the heat generated by UV curing lamp from causing heat shrinkable film deformation.

[0004] However, the above-mentioned patent technical solution also has certain defects: 1. The interlaced arrangement of the rollers may cause the UV ink on the surface of the heat shrinkable film to adhere to the outer surface of the roller, which may cause uneven distribution of the UV ink on the heat shrinkable film, thereby affecting the appearance and quality of the printed product; 2. The multiple gas holes on the roller blow cold air from the inside to cool the heat shrinkable film, but due to the interlaced arrangement of the rollers, the side of the heat shrinkable film with UV ink is in contact with the outer surface of the roller, causing the cold air to directly act on the UV ink, which may cause airflow disturbance on the surface of the UV ink that has not completely dried, causing the ink to splash or drift, thereby causing uneven distribution of the ink on the PETG heat shrinkable film. Utility model content

[0005] In view of the above, in view of the deficiencies of the prior art, the utility model provides a drying device for UV ink on PETG heat shrinkable film to solve the problem of uneven distribution of UV ink on heat shrinkable film caused by the adhesion of UV ink to the roller in the prior art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of drying device of UV ink on PETG heat shrinkable film, including shell, the shell side is uniformly provided with guide roller, the shell upper and lower inner wall is uniformly provided with UV curing lamp, the shell opposite side is uniformly provided with connecting column, the connecting column outer surface is uniformly provided with water cooling roller, the water cooling roller both sides are provided with fixed cover, the fixed cover is fixedly arranged in the inner wall of shell, the fixed cover in the water cooling roller side is sequentially provided with water inlet pipe and water outlet pipe, the shell side outer wall is provided with water tank, and the water tank is connected with water inlet pipe and water outlet pipe and is communicated;The shell is provided with air cooling component inside, and it is used to reduce the temperature of PETG heat shrinkable film.

[0007] As preferably, the number of connecting columns is multiple, and the multiple connecting columns are elliptical in shape, which is used to prevent the UV ink on the PETG heat shrinkable film from adhering to the outer surface of the water cooling roller.

[0008] As preferably, the water cooling roller is provided with heat-conducting sheets inside, which is used to better transfer heat between the cooling water and the water cooling roller.

[0009] As preferably, the air cooling component includes a fixed slide rail, which is installed on the inner wall of one side of the shell, and the fixed slide rail is sequentially provided with a sliding block one and a sliding block two, and the sliding block one and the sliding block two are provided with a connecting plate on one side.

[0010] As preferably, the other side of the shell is provided with a rotating shaft, and the side of the rotating shaft away from the shell is provided with a movable slide rail, and the movable slide rail is provided with a sliding rod inside.

[0011] As preferably, the sliding rod and the connecting plate are provided with an air outlet box between the opposite sides, and the air outlet box is uniformly provided with an exhaust pipe on one side.

[0012] As preferably, the fixed slide rail is a cross-shaped structure, the sliding block one is located in the horizontal track of the fixed slide rail, the sliding block two is located in the vertical track of the fixed slide rail, and the two are vertically distributed.

[0013] Compared with the prior art, the utility model provides a drying device of UV ink on PETG heat shrinkable film, which has the following advantages:

[0014] By setting multiple water cooling rollers in an elliptical shape, the UV ink on the PETG heat shrinkable film can be prevented from contacting the outer surface of the water cooling roller, thereby effectively avoiding the problem of uneven distribution of UV ink on the PETG heat shrinkable film caused by the adhesion of UV ink to the outer surface of the roller, so as to ensure the appearance and quality of the printed matter.

[0015] The cooling water is conveyed to the inside of the water-cooled roller through the water tank, and the heat of the PETG heat shrinkable film is absorbed to a certain extent under the action of the heat conduction sheet, so that the PETG heat shrinkable film can be preliminarily cooled, and then the rotating shaft is driven to rotate by an external drive, so that the air outlet box is driven to rotate synchronously, and under the limiting action of the cross-shaped fixed slide rail, the air outlet box is close to the PETG heat shrinkable film and blows air to cool the PETG heat shrinkable film, so that the PETG heat shrinkable film is subjected to secondary cooling treatment, effectively avoiding the problem that the PETG heat shrinkable film is deformed or stress cracks due to the influence of thermal stress under high temperature, which helps to reduce the negative influence of thermal stress on the film material and maintain the flatness and stability of the film material.

[0016] By arranging the air cooling assembly in the middle of the shell, the cold air can be prevented from directly acting on the UV ink, so that the UV ink surface will not appear airflow disturbance phenomenon, and then the spatter or drift of the UV ink can be effectively prevented, so that the effect of UV ink spraying on the PETG heat shrinkable film is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a cut structure schematic view of the shell in the utility model;

[0019] Figure 3 The utility model Figure 2 The structure enlarged view of A place in the middle;

[0020] Figure 4 It is a structure schematic view of the air cooling assembly in the utility model;

[0021] Figure 5 It is the structure explosion drawing of the water-cooled roller in the utility model.

[0022] In the drawings, the component list represented by each sign is as follows:

[0023] 1, shell;2, guide roller;3, connecting column;4, UV curing lamp;5, water-cooled roller;6, fixed cover;7, heat conduction sheet;8, water inlet pipe;9, water outlet pipe;10, fixed slide rail;11, sliding block one;12, sliding block two;13, connecting plate;14, rotating shaft;15, movable slide rail;16, slide rod;17, air outlet box;18, exhaust pipe;19, water tank. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] The present application will be further described in detail with reference to the drawings and embodiments.

[0026] Embodiment

[0027] Please refer to Figures 1 to 5 To solve the problems mentioned in the technical solutions, the present application provides a drying device for UV ink on PETG heat shrink film, which comprises a shell 1, and the shell 1 is uniformly provided with guide rollers 2 on one side, wherein the number of guide rollers 2 is two, and one of the guide rollers 2 is used to guide the PETG heat shrink film into the shell 1, and the other guide roller 2 is used to guide the PETG heat shrink film out of the shell 1; the inner walls of the shell 1 are uniformly provided with UV curing lamps 4, which can ensure precise curing and drying of the UV ink on one side of the PETG heat shrink film; the opposite faces of the shell 1 are uniformly provided with connecting columns 3, the outer surfaces of the connecting columns 3 are provided with water-cooled rollers 5, the water-cooled rollers 5 are provided with fixed covers 6 on both sides, the fixed covers 6 are fixedly arranged on the inner walls of the shell 1, the fixed cover 6 on one side of the water-cooled roller 5 is sequentially provided with an inlet pipe 8 and an outlet pipe 9, and the outer wall of the shell 1 is provided with a water tank 19, which is in communication with the inlet pipe 8 and the outlet pipe 9, wherein the water-cooled roller 5 rotates inside the fixed cover 6 provided on both sides of the water-cooled roller 5, and a sealing structure is designed between the two, so as to avoid leakage of cooling water from the gap between the two, and the inlet pipe 8 and the outlet pipe 9 are arranged on the fixed cover 6, which not only ensures the normal entry and exit of cooling water, but also avoids the problem that the two need to rotate synchronously with the water-cooled roller 5; a forced air cooling assembly is arranged in the shell 1, which is used to reduce the temperature of the PETG heat shrink film.

[0028] It is worth mentioning that the number of connecting columns 3 is multiple, and the multiple connecting columns 3 are in the shape of an ellipse as a whole, which is used to prevent the UV ink on the PETG heat shrink film from adhering to the outer surface of the water-cooled roller 5, and also can increase the time of the PETG heat shrink film placed in the shell 1, so as to improve the drying effect of the UV ink on the PETG heat shrink film; and the water-cooled roller 5 is provided with heat-conducting sheets 7 inside, which are used to better transfer heat between the cooling water and the water-cooled roller 5, so that the heat on the PETG heat shrink film can be quickly transferred to the cooling water inside the water-cooled roller 5, thereby the PETG heat shrink film can be cooled, avoiding the problem of shrinkage and deformation of the PETG heat shrink film due to the influence of the heat of the UV curing lamp 4.

[0029] Further embodiments:

[0030] Please refer to Figures 1 to 5 As shown in the figure, the air cooling assembly includes a fixed slide rail 10 installed on the inner wall of one side of the shell 1, the fixed slide rail 10 is sequentially provided with a sliding block one 11 and a sliding block two 12, and the sliding block one 11 and the sliding block two 12 are provided with a connecting plate 13 on one side; at the same time, the inner wall of the other side of the shell 1 is provided with a rotating shaft 14, one end of the rotating shaft 14 is connected with an external drive, the side of the rotating shaft 14 away from the shell 1 is provided with a movable slide rail 15, the inside of the movable slide rail 15 is provided with a sliding rod 16, the sliding rod 16 and the opposite surface of the connecting plate 13 are provided with an air outlet box 17, and the outer wall of one side of the air outlet box 17 is connected with an external fan, the outer wall of one side of the air outlet box 17 is uniformly provided with an exhaust pipe 18, which is used to blow cold air to the side of the PETG heat shrinkable film which is not coated with UV ink, thereby avoiding the case that the cold air is directly blown to the UV ink and causes incomplete curing reaction; in addition, the fixed slide rail 10 is a cross-shaped structure, the sliding block one 11 is located in the horizontal rail of the fixed slide rail 10, the sliding block two 12 is located in the vertical rail of the fixed slide rail 10, and the two are distributed in a perpendicular state.

[0031] The working principle of all the contents in the above embodiments is as follows:

[0032] In use, first open the UV curing lamp 4 inside the shell 1, and start preheating, then through the guide roller 2 to the PETG heat shrinkable film sprayed UV ink to the inside of the shell 1, then make the PETG heat shrinkable film through the outer surface of the plurality of water-cooled roller 5, make the PETG heat shrinkable film and the plurality of water-cooled roller 5 in close contact, and the oval-shaped plurality of water-cooled roller 5 can avoid the UV ink on the PETG heat shrinkable film contact with the outer surface of the water-cooled roller 5, thereby effectively avoiding the problem of uneven distribution of UV ink on the PETG heat shrinkable film caused by the adhesion of UV ink on the outer surface of the roller, so as to ensure the appearance and quality of the printed matter, then draw cooling water from inside the water tank 19 and transport it to the inside of the water-cooled roller 5 through the water inlet pipe 8, and make it full of cooling water inside, then under the action of the heat-conducting sheet 7, the low temperature of the cooling water is transmitted to the outer surface of the water-cooled roller 5, and the PETG heat shrinkable film on the outer surface of the water-cooled roller 5 is cooled, which can absorb the heat of the PETG heat shrinkable film to a certain extent, thereby preliminarily realizing the cooling treatment of the PETG heat shrinkable film, then drive the shaft 14 to rotate through the external drive, make the movable sliding rail 15 drive the sliding rod 16 to rotate, then the sliding rod 16 drives the air outlet box 17 to rotate synchronously, and makes the connecting plate 13 also rotate, promotes the sliding block one 11 and the sliding block two 12 to slide along the inside of the fixed sliding rail 10, and at the same time under the limiting action of the cross-shaped fixed sliding rail 10, promotes the air outlet box 17 to rotate along the elliptical line, which can be closer to the PETG heat shrinkable film on the water-cooled roller 5 and blow cooling treatment to it, thereby realizing the secondary cooling treatment of the PETG heat shrinkable film, effectively avoiding the problem that the PETG heat shrinkable film is deformed or stress cracks due to the influence of thermal stress under high temperature, which helps to reduce the negative influence of thermal stress on the film material and maintain the flatness and stability of the film material.

[0033] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for UV ink on a PETG heat shrink film, comprising a housing (1), a guide roller (2) provided on one side of the housing (1), and UV curing lamps (4) evenly provided on the upper and lower inner walls of the housing (1), characterized in that: Connecting columns (3) are evenly arranged between opposite surfaces of the shell (1), and water-cooled rollers (5) are arranged on the outer surfaces of the connecting columns (3). Fixed covers (6) are arranged on both sides of the water-cooled rollers (5), and the fixed covers (6) are fixedly arranged on the inner wall of the shell (1). The fixed cover (6) located on one side of the water-cooled roller (5) is sequentially provided with a water inlet pipe (8) and a water outlet pipe (9), and a water tank (19) is provided on the outer wall of one side of the shell (1), and the water tank (19) is connected to the water inlet pipe (8) and the water outlet pipe (9); An air cooling component is provided inside the housing (1) and is used to reduce the temperature of the PETG heat shrink film.

2. The drying device for UV ink on PETG heat shrinkable film according to claim 1, characterized in that: There are multiple connecting columns (3), and the connecting columns (3) are elliptical in shape as a whole, and are used to prevent the UV ink on the PETG heat shrink film from adhering to the outer surface of the water-cooled roller (5).

3. The drying device for UV ink on PETG heat shrinkable film according to claim 2, characterized in that: The water-cooled rollers (5) are each provided with a heat conducting sheet (7) inside, which is used to better transfer heat between the cooling water and the water-cooled rollers (5).

4. The drying device for UV ink on PETG heat shrinkable film according to claim 1, characterized in that: The air cooling assembly includes a fixed slide rail (10), which is installed on the inner wall of one side of the shell (1). The fixed slide rail (10) is provided with a slider 1 (11) and a slider 2 (12) in sequence, and a connecting plate (13) is provided on one side of the slider 1 (11) and the slider 2 (12).

5. The drying device for UV ink on PETG heat shrinkable film according to claim 4, characterized in that: A rotating shaft (14) is provided on the inner wall of the other side of the housing (1), a movable slide rail (15) is provided on the side of the rotating shaft (14) away from the housing (1), and a slide rod (16) is provided inside the movable slide rail (15).

6. The drying device for UV ink on PETG heat shrinkable film according to claim 5, characterized in that: An air outlet box (17) is provided between the opposing surfaces of the sliding rod (16) and the connecting plate (13), and an exhaust pipe (18) is evenly provided on an outer wall of one side of the air outlet box (17).

7. The drying device for UV ink on PETG heat shrinkable film according to claim 4, characterized in that: The fixed slide rail (10) is a cross-shaped structure, the slider 1 (11) is located inside the horizontal track of the fixed slide rail (10), and the slider 2 (12) is located inside the vertical track of the fixed slide rail (10), and the two are distributed in a vertical state.

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