Liquid packaging bag reinforcing film coating device

Abstract

The utility model relates to a kind of liquid packaging bag reinforcing film laminating device, belong to liquid packaging bag laminating technical field, including laminating box and transfer box, the laminating box inner wall is provided with laminating assembly for the double-sided laminating of liquid packaging bag simultaneously;The laminating assembly includes the first laminating cylinder and second laminating cylinder rotationally connected in the laminating box inner wall, the output shaft of the first drive motor and second drive motor is all fixedly connected with connecting shaft, the outside of heating cover is fixedly connected with fan, the inside of heating cover is fixedly connected with air heating pipe, the outside of first laminating cylinder and second laminating cylinder is all provided with heat conduction sleeve.The liquid packaging bag reinforcing film laminating device, by setting laminating assembly, liquid packaging bag passes through the gap of first laminating cylinder and second laminating cylinder, finally, under the action of heat and pressure, the hot melt adhesive on the outer surface of reinforcing film melts, and it laminates simultaneously on the double side of liquid packaging bag, and its laminating efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of liquid packaging bag coating technology, specifically a liquid packaging bag reinforcing film coating device. Background Technology

[0002] Liquid packaging bags are a type of flexible packaging specifically designed for packaging liquid products. Unlike rigid containers such as bottles and cans, they are flexible, deformable, and take up little space.

[0003] In the production of liquid packaging bags, a laminating device is needed to cover the outer surface with a reinforcing film to prevent leakage. Chinese utility model patent CN217622507U discloses a laminating device for reinforcing film on liquid packaging bags, including a machine body, a film roller, and a hot press plate. The machine body has a through hole in the middle, and worktables are set on both sides of the through hole. Guide rollers and take-up rollers are respectively installed on the side walls of the machine body. A controller is also installed on the other side wall of the machine body. The film roller is installed near the top of the through hole via a first roller shaft. The hot press plate is movably set below the mounting box via an electric push rod. A hot press machine electrically connected to the hot press plate is installed on one side wall of the mounting box. A pressure roller that can be adjusted vertically is also set in the through hole on one side of the hot press plate. This utility model greatly improves the adjustability of reinforcing film and also improves the automation level of the equipment.

[0004] This utility model allows for enhanced film coating at different locations of the liquid packaging film by adjusting the position of the hot press plate. However, in existing coating devices, the liquid packaging film is conveyed along the worktable, with its lower surface pressed against the worktable, making it impossible to coat both sides of the liquid packaging bag simultaneously, resulting in low coating efficiency. Therefore, a liquid packaging bag reinforced film coating device is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a liquid packaging bag reinforcing film coating device, which has the advantages of simultaneous double-sided coating of liquid packaging bags and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A liquid packaging bag reinforcing film coating device includes a coating box and a transfer box, wherein the inner wall of the coating box is provided with a coating component for simultaneously coating both sides of the liquid packaging bag;

[0008] The coating assembly includes a first coating roller and a second coating roller rotatably connected to the inner wall of the coating box. A transmission frame is fixedly connected to the back of the coating box, and a first drive motor and a second drive motor are fixedly connected to the back of the transmission frame. The output shafts of the first drive motor and the second drive motor are both fixedly connected to a connecting shaft. Heating covers are fixedly installed on both the left and right sides of the coating box. A fan is fixedly connected to the outside of the heating cover, and an air heating pipe is fixedly connected to the inside of the heating cover. Heat-conducting sleeves are provided on the outside of both the first coating roller and the second coating roller.

[0009] Furthermore, a top plate is fixedly installed on the top of the film-coating box, and a feed inlet is opened on the top of the top plate.

[0010] Furthermore, guide plates are fixedly connected to both the left and right sides of the bottom of the top plate, and the guide plates are set in an inclined state.

[0011] Furthermore, the inner wall of the heating cover is provided with a heat insulation mesh to prevent heat from affecting the heating, and ventilation openings are provided on both the left and right sides of the film-coating box.

[0012] Furthermore, the coating box is made of stainless steel, and the first coating roller and the second coating roller are the same size.

[0013] Furthermore, both the first and second coating rollers are hollow structures, and the rear ends of both the first and second coating rollers pass through the coating box and are fixedly connected to the connecting shaft.

[0014] Furthermore, the left and right sides of the inner wall of the laminating box are fixedly connected to limit guide rails, and the bottom of the laminating box is provided with a limit sliding groove.

[0015] Furthermore, the outer surface of the film-coated box is equipped with an infrared temperature measuring device and a display controller, and the front and back of the film-coated box are provided with pull-out openings for the transfer box to enter and exit.

[0016] Compared with the prior art, this utility model provides a liquid packaging bag reinforcing film coating device, which has the following beneficial effects:

[0017] 1. This liquid packaging bag reinforcing film coating device, by setting up a coating assembly, wherein an air heating pipe can heat the air, and a fan can continuously blow hot air onto the outer surfaces of the first coating roller and the second coating roller, thereby keeping the first coating roller and the second coating roller at a high temperature under the heat conduction effect of the heat-conducting sleeve. In addition, the first drive motor and the second drive motor can drive the first coating roller and the second coating roller to rotate in opposite directions respectively through the connecting shaft. Then, the two reinforcing films are attached to both sides of the liquid packaging bag, so that the liquid packaging bag passes through the gap between the first coating roller and the second coating roller. Finally, under the action of heat and pressure, the hot melt adhesive on the outer surface of the reinforcing film melts, and the liquid packaging bag is coated on both sides simultaneously, with high coating efficiency.

[0018] 2. The liquid packaging bag reinforcing film coating device, through the cooperation of the top plate, the feed port and the guide plate, allows the liquid packaging bag to be accurately passed through the gap between the first coating roller and the second coating roller when the worker places the liquid packaging bag into the coating box. The two guide plates are set in an inclined state to guide the liquid packaging bag, so that the liquid packaging bag can pass through the gap between the first coating roller and the second coating roller accurately. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 2 This is a top view of the structure of the film-coated box of this utility model;

[0021] Figure 3 This is a three-dimensional structural view of the top plate of this utility model;

[0022] Figure 4 This is a front view of the structure of this utility model.

[0023] In the diagram: 1. Coating box; 2. First coating roller; 3. Second coating roller; 4. Transmission frame; 5. First drive motor; 6. Second drive motor; 7. Connecting shaft; 8. Heating cover; 9. Fan; 10. Air heating pipe; 11. Heat-conducting sleeve; 12. Top plate; 13. Feed inlet; 14. Guide plate; 15. Heat insulation net; 16. Ventilation opening; 17. Transfer box; 18. Limiting guide rail; 19. Limiting slide groove; 20. Infrared temperature measuring device; 21. Display controller. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 4 This embodiment of a liquid packaging bag reinforcing film coating device includes a coating box 1 and a transfer box 17. The inner wall of the coating box 1 is provided with a coating assembly for simultaneously coating both sides of the liquid packaging bag. The coating assembly includes a first coating roller 2 and a second coating roller 3 rotatably connected to the inner wall of the coating box 1. A transmission frame 4 is fixedly connected to the back of the coating box 1. A first drive motor 5 and a second drive motor 6 are fixedly connected to the back of the transmission frame 4. The output shafts of the first drive motor 5 and the second drive motor 6 are both fixedly connected to a connecting shaft 7. Heating covers 8 are fixedly installed on both the left and right sides of the coating box 1. A fan 9 is fixedly connected to the outside of the heating cover 8. An air heating pipe 10 is fixedly connected to the inside of the heating cover 8. A heat-conducting sleeve 11 is provided on the outside of the first coating roller 2 and the second coating roller 3. The air heating pipe 10 can heat the air, and the fan 9 can continuously blow the hot air to the outer surface of the first coating roller 2 and the second coating roller 3. Thus, under the heat conduction effect of the heat-conducting sleeve 11, the first coating roller 2 and the second coating roller 3 are kept at a high temperature.

[0026] In addition, the first drive motor 5 and the second drive motor 6 can drive the first coating roller 2 and the second coating roller 3 to rotate in opposite directions respectively through the connecting shaft 7.

[0027] Subsequently, two reinforcing films are bonded to both sides of the liquid packaging bag, allowing the liquid packaging bag to pass through the gap between the first coating roller 2 and the second coating roller 3. Finally, under the action of heat and pressure, the hot melt adhesive on the outer surface of the reinforcing film melts, simultaneously coating both sides of the liquid packaging bag, resulting in high coating efficiency.

[0028] In this embodiment, a top plate 12 is fixedly installed on the top of the laminating box 1. A feed inlet 13 is opened on the top of the top plate 12. Guide plates 14 are fixedly connected to the left and right sides of the bottom of the top plate 12. The guide plates 14 are set in an inclined state. When the worker places the liquid packaging bag into the laminating box 1, the two guide plates 14 set in an inclined state can guide the liquid packaging bag so that the liquid packaging bag can accurately pass through the gap between the first laminating roller 2 and the second laminating roller 3.

[0029] It should be noted that the inner wall of the heating cover 8 is provided with a heat insulation net 15 to avoid the influence of heat. Ventilation openings 16 are provided on both the left and right sides of the film covering box 1. The heat insulation net 15 can prevent the fan 9 from being affected by the heat generated by the air heating pipe 10 while ensuring the ventilation effect.

[0030] Specifically, the laminating box 1 is made of stainless steel, the first laminating roller 2 and the second laminating roller 3 are the same size, the first laminating roller 2 and the second laminating roller 3 are both hollow structures, and the rear ends of the first laminating roller 2 and the second laminating roller 3 both pass through the laminating box 1 and are fixedly connected to the connecting shaft 7.

[0031] It should be noted that the left and right sides of the inner wall of the film-coated box 1 are fixedly connected with limiting guide rails 18, and the bottom of the film-coated box 1 is provided with a limiting slide groove 19. The limiting guide rails 18 and the limiting slide groove 19 can limit the transfer box 17 to the inside of the film-coated box 1, which is convenient for receiving and transferring the film-coated liquid packaging bags.

[0032] Specifically, the outer surface of the coating box 1 is equipped with an infrared temperature measuring device 20 and a display controller 21. The front and back of the coating box 1 are provided with pull-out openings for the transfer box 17 to enter and exit. The infrared temperature measuring device 20 is an instrument that can use the infrared energy naturally radiated by the surface of an object to measure its surface temperature, and it belongs to non-contact temperature measurement.

[0033] The working principle of the above embodiments is as follows:

[0034] In use, turning on the air heating pipe 10 and the fan 9 heats the air and continuously blows the hot air onto the outer surfaces of the first coating roller 2 and the second coating roller 3. Through the heat conduction effect of the heat-conducting sleeve 11, the first coating roller 2 and the second coating roller 3 are kept at a high temperature. When the infrared temperature measuring device 20 measures that the temperature of the outer surfaces of the first coating roller 2 and the second coating roller 3 has reached the coating temperature, the air heating pipe 10 and the fan 9 are turned off. Then, the first drive motor 5 and the second drive motor 6 are started and controlled, which can drive the first coating roller 2 and the second coating roller 3 respectively through the connecting shaft 7. Rollers 3 rotate in opposite directions. During this process, the first laminating roller 2 rotates clockwise and the second laminating roller 3 rotates counterclockwise. Then, the worker applies two reinforcing films to both sides of the liquid packaging bag and puts the liquid packaging bag into the laminating box 1 through the feed port 13. Subsequently, two guide plates 14 set in an inclined state can guide the liquid packaging bag so that the liquid packaging bag can accurately pass through the gap between the first laminating roller 2 and the second laminating roller 3. Finally, under the action of heat and pressure, the hot melt adhesive on the outer surface of the reinforcing film melts, and both sides of the liquid packaging bag are laminated simultaneously.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] It should be noted that, in this document, relational 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. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] 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 liquid packaging bag reinforcing film coating device, comprising a coating box (1) and a transfer box (17), characterized in that: The inner wall of the film-coating box (1) is provided with a film-coating component for simultaneously film-coating both sides of liquid packaging bags; The coating assembly includes a first coating roller (2) and a second coating roller (3) rotatably connected to the inner wall of the coating box (1). A transmission frame (4) is fixedly connected to the back of the coating box (1). A first drive motor (5) and a second drive motor (6) are fixedly connected to the back of the transmission frame (4). A connecting shaft (7) is fixedly connected to the output shafts of the first drive motor (5) and the second drive motor (6). A heating cover (8) is fixedly installed on both the left and right sides of the coating box (1). A fan (9) is fixedly connected to the outside of the heating cover (8). An air heating pipe (10) is fixedly connected to the inside of the heating cover (8). A heat-conducting sleeve (11) is provided on the outside of both the first coating roller (2) and the second coating roller (3).

2. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The top of the film-coating box (1) is fixedly installed with a top plate (12), and the top of the top plate (12) is provided with a feed inlet (13).

3. The liquid packaging bag reinforcing film coating device according to claim 2, characterized in that: Guide plates (14) are fixedly connected to the left and right sides of the bottom of the top plate (12), and the guide plates (14) are set in an inclined state.

4. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The inner wall of the heating cover (8) is provided with a heat insulation net (15) to avoid the influence of heat, and ventilation openings (16) are provided on both the left and right sides of the film covering box (1).

5. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The coating box (1) is made of stainless steel, and the first coating roller (2) and the second coating roller (3) are the same size.

6. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The first coating roller (2) and the second coating roller (3) are both hollow structures. The rear ends of the first coating roller (2) and the second coating roller (3) pass through the coating box (1) and are fixedly connected to the connecting shaft (7).

7. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The left and right sides of the inner wall of the film-coating box (1) are fixedly connected to limit guide rails (18), and the bottom of the film-coating box (1) is provided with a limit slide groove (19).

8. The liquid packaging bag reinforcing film coating device according to claim 1, characterized in that: The outer surface of the film-coated box (1) is provided with an infrared temperature measuring device (20) and a display controller (21). The front and back of the film-coated box (1) are provided with pull-out openings for the transfer box (17) to enter and exit.

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