A uniform glue device for dry laminating machine

Abstract

The utility model discloses a kind of uniform glue devices for dry rewinder, including stand, the upper and lower ends of the one side wall of stand are respectively provided with upper support plate and lower support plate, upper support plate and lower support plate are horizontally arranged and mutually correspond, and U-shaped structure is formed between stand, upper support plate and lower support plate;Upper support plate is equipped with spray pipe, inlet pipe is equipped on spray pipe, the bottom end of spray pipe is equipped with the spray port for the glueing surface of film substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate substrate

Description

Technical Field

[0001] This utility model relates to the field of dry laminating adhesive technology, specifically a dry laminating adhesive leveling device. Background Technology

[0002] A laminating machine is used to bond two or more layers of materials together with adhesives, giving the original materials new functions. Examples include films and aluminum foil, films, paper, and non-woven fabrics. It can also be used to laminate with films, sponges, and fabrics. Most common flexible packaging materials are composite products. Patent publication number CN209613399U discloses a coating and sanding device for precision polishing materials. Specifically, it discloses a conveying device for transporting a base strip, a coating device for applying adhesive to the base strip on the conveying device, an air-leveling device for blowing air onto the adhesive on the surface of the base strip after coating, and an adjusting device for adjusting the distance between the air-leveling device and the adhesive on the base strip surface. However, directly using a high-pressure airflow from a blower to spray and level the adhesive layer on the substrate accelerates the solidification of the adhesive on the substrate. This results in poor fluidity and leveling properties of the adhesive, poor leveling effect, inability to ensure a smooth adhesive surface on the substrate, complex structure, and inconvenient operation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dry laminating device with good lamination effect, making the adhesive surface on the film substrate smooth, simple in structure, flexible and convenient in operation, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dry coating applicator, comprising a column, with an upper support plate and a lower support plate respectively provided at the upper and lower ends of one side wall of the column, the upper support plate and the lower support plate being horizontally arranged and corresponding to each other, forming a U-shaped structure between the column, the upper support plate and the lower support plate; a blow pipe is provided on the upper support plate, an air inlet pipe is provided on the blow pipe, and a blow nozzle for blowing airflow onto the coating surface of the film substrate is provided at the bottom end of the blow pipe; a heating plate for heating the back side of the film substrate is provided on the lower support plate.

[0005] Furthermore, the column is a square tube structure, with clearance guide grooves provided at the positions corresponding to the upper and lower support plates. A fixing block is fixedly installed in the middle of the column. Both the upper and lower support plates are T-shaped plate structures, with their heads slidingly nested inside the column. Both the upper and lower support plates extend to the outside of the column through the clearance guide grooves. End plates are fixedly installed at the top and bottom of the column, with adjusting bolts threaded onto each end plate. Springs are provided between the fixing block and the upper support plate, and between the fixing block and the lower support plate. The springs cause the upper and lower support plates to abut against their corresponding adjusting bolts, and the adjusting bolts are also equipped with locking nuts.

[0006] Furthermore, the blowpipe has a rectangular tube structure, and the blow nozzle at the bottom of the blowpipe has a flat nozzle structure; the heating plate is a ceramic heating plate.

[0007] Furthermore, the upper surface of the upper support plate is provided with a receiving hole adapted to the structure of the blowpipe, and the top of one of the opposite side walls of the blowpipe is provided with a limiting protrusion, and the blowpipe is sleeved in the receiving hole, and the bottom end of the blowpipe passes through the receiving hole.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This dry laminating machine's uniform coating device uses airflow from a spray pipe to evenly blow the adhesive onto the surface of the film substrate, causing the adhesive to be evenly dispersed under the action of high-pressure airflow, thereby making the adhesive surface on the film substrate smooth and uniform in thickness; at the same time, the heating plate preheats the back of the film substrate, thereby raising the temperature of the adhesive on the film substrate, improving the fluidity and leveling effect of the adhesive, improving the uniform coating effect, and preventing the airflow from the spray pipe from blowing onto the adhesive and causing it to solidify and dry prematurely; the distance between the spray pipe and the adhesive-coated surface of the film substrate, as well as the distance between the heating plate and the back of the film substrate, are adjustable; this uniform coating device has a simple structure and is flexible and convenient to operate. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a top view of the upper support plate of this utility model;

[0011] Figure 3 This is a side sectional view of the present invention;

[0012] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0013] In the diagram: 1. Column; 11. Guide groove for clearance; 12. Fixing block; 2. Upper support plate; 21. Receiving hole; 3. Lower support plate; 4. Blow pipe; 41. Air inlet pipe; 42. Limiting protrusion; 5. Heating plate; 6. End plate; 7. Adjusting bolt; 8. Spring; 9. Locking nut; 200. Glue roller; 300. Pressure roller; 400. Guide roller; 500. High-pressure blower. Detailed Implementation

[0014] 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. Example

[0015] Please see Figure 1-4 This utility model provides a technical solution: a dry coating device, including a column 1, with an upper support plate 2 and a lower support plate 3 respectively provided at the upper and lower ends of one side wall of the column 1. The upper support plate 2 and the lower support plate 3 are horizontally arranged and correspond to each other, forming a U-shaped structure between the column 1, the upper support plate 2 and the lower support plate 3; the upper support plate 2 is provided with a blow pipe 4, and the blow pipe 4 is provided with an air inlet pipe 41. The blow pipe 4 is a rectangular tube structure, and the bottom end of the blow pipe 4 is provided with a flat nozzle structure; the upper surface of the upper support plate 2 is provided with a receiving hole 21 adapted to the structure of the blow pipe 4. The blow pipe 4 is sleeved in the receiving hole 21, and the bottom end of the blow pipe 4 passes through the receiving hole 21. The top of one opposite side wall of the blow pipe 4 is provided with a limiting protrusion 42. The nozzle of the blow pipe 4 faces the coating surface of the film substrate and blows airflow onto it. The lower support plate 3 is provided with a heating plate 5 for heating the back of the film substrate. The heating plate 5 is a ceramic heating plate.

[0016] The column 1 is a square tube structure. The column 1 has a clearance guide groove 11 at the position corresponding to the upper support plate 2 and the lower support plate 3. A fixing block 12 is fixedly installed in the middle of the column 1. The upper support plate 2 and the lower support plate 3 are both T-shaped plate structures. The heads of the upper support plate 2 and the lower support plate 3 are slidably nested in the column 1. The upper support plate 2 and the lower support plate 3 are both extended to the outside of the column 1 through the clearance guide groove 11. The top and bottom ends of the column 1 are fixedly provided with end plates 6. Adjusting bolts 7 are threadedly connected to the end plates 6. Springs 8 are provided between the fixing block 12 and the upper support plate 2 and between the fixing block 12 and the lower support plate 3. The springs 8 cause the upper support plate 2 and the lower support plate 3 to abut against their corresponding adjusting bolts 7. The adjusting bolts 7 are also provided with locking nuts 9.

[0017] In use: The film substrate is conveyed to the coating roller 200 by the dry laminator conveyor roller for coating, and then passes horizontally through the pressure roller 300 and guide roller 400 before passing through the coating device. The top surface of the coated film substrate is the coated surface, and the uncoated side of the film substrate is the back surface. The spray pipe 4 is connected to the external high-pressure blower 500 through the connecting pipe. When the coating device coats the film substrate, the external high-pressure blower 500 delivers airflow to the spray pipe 4. The airflow is sprayed out through the flat nozzle at the bottom of the spray pipe 4. The airflow from the spray pipe 4 is evenly blown onto the adhesive on the surface of the film substrate, so that the adhesive is evenly dispersed under the action of the high-pressure airflow, thereby making the adhesive surface on the film substrate flat and uniform in thickness. At the same time, the back of the film substrate is close to the heating plate 5. The heating plate 5 preheats the back of the film substrate, thereby raising the temperature of the adhesive on the film substrate, improving the fluidity of the adhesive, improving the coating effect, and preventing the airflow from the spray pipe 4 from blowing onto the adhesive and causing it to solidify and dry prematurely, thus ensuring the leveling effect of the adhesive on the film substrate.

[0018] When it is necessary to adjust the distance between the blow pipe 4 and the adhesive surface of the film substrate, and to adjust the distance between the heating plate 5 and the back of the film substrate, loosen the locking nut 9 and tighten the adjusting bolt 7 to allow the upper support plate 2 or the lower support plate 3 to slide along the length of the column 1, thereby adjusting the distance between the blow pipe 4 and the adhesive surface of the film substrate, and the distance between the heating plate 5 and the back of the film substrate.

[0019] The dry laminating device disclosed in this embodiment uses airflow from the spray pipe 4 to evenly blow the adhesive onto the surface of the film substrate, causing the adhesive to be evenly dispersed under the action of high-pressure airflow, thereby making the adhesive surface on the film substrate smooth and uniform in thickness. At the same time, the heating plate 5 preheats the back of the film substrate, thereby raising the temperature of the adhesive on the film substrate, improving the fluidity and leveling effect of the adhesive, improving the lamination effect, and preventing the airflow from the spray pipe 4 from blowing onto the adhesive and causing it to solidify and dry prematurely. The distance between the spray pipe 4 and the adhesive-coated surface of the film substrate, as well as between the heating plate 5 and the back of the film substrate, are adjustable and easy to operate.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dry laminating machine coating device, comprising a column, characterized in that: The upper and lower support plates are respectively provided at the upper and lower ends of one side wall of the column. The upper and lower support plates are horizontally arranged and correspond to each other, forming a U-shaped structure between the column, the upper support plate and the lower support plate. The upper support plate is provided with a blow pipe, the blow pipe is provided with an air inlet pipe, and the bottom end of the blow pipe is provided with a blow nozzle for blowing airflow onto the adhesive surface of the film substrate. The lower support plate is provided with a heating plate for heating the back of the film substrate.

2. The dry laminating apparatus according to claim 1, characterized in that: The column is a square tube structure. A clearance guide groove is provided at the corresponding positions of the upper and lower support plates. A fixing block is fixedly installed in the middle of the column's interior. Both the upper and lower support plates are T-shaped structures, with their heads slidingly nested within the column. Both plates extend through the clearance guide groove to the outside of the column. End plates are fixed at the top and bottom of the column, each threaded with an adjusting bolt. Springs are installed between the fixing block and the upper support plate, and between the fixing block and the lower support plate. These springs cause the upper and lower support plates to abut against their corresponding adjusting bolts, which are also equipped with locking nuts.

3. The dry laminating apparatus according to claim 1, characterized in that: The blowpipe has a rectangular tube structure, and the blow nozzle at the bottom of the blowpipe has a flat nozzle structure; the heating plate is a ceramic heating plate.

4. The dry laminating apparatus according to claim 3, characterized in that: The upper surface of the upper support plate is provided with a receiving hole adapted to the structure of the blow pipe. The top of one of the opposite side walls of the blow pipe is provided with a limiting protrusion, and the blow pipe is sleeved in the receiving hole, with the bottom end of the blow pipe penetrating through the receiving hole.

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