Polyethylene barrier film production device

Abstract

The invention discloses a polyethylene barrier film production device which comprises a cooling water tank, and a plurality of first guide rollers are rotatably connected to the inner side of the cooling water tank at equal intervals. Cooling liquid is injected into the water passing cavity and the water guiding holes through one water passing pipe, pre-cooling treatment is conducted on the polyethylene barrier film conveyed on the cold guiding rollers, the cooling water tank, the first guiding rollers and the conveying rollers are arranged, and therefore the polyethylene barrier film enters the cooling water tank and is further cooled through the cooling liquid; and cold air is blown to the polyethylene barrier film for cooling in combination with all air blowing heads at the bottom of the fixed air box, full cooling of the polyethylene barrier film is completed, the cooling effect is improved, the influence on the final performance of the film is avoided, and guiding treatment on the conveying position of the polyethylene barrier film is achieved by arranging a guiding ring.

Description

Technical Field

[0001] The invention relates to the technical field of barrier film production, in particular to a polyethylene barrier film production device. Background Art

[0002] Polyethylene barrier film is made of polyethylene material through a special process. It has certain barrier properties and can effectively block the penetration of moisture, oxygen and other substances. It usually has a multi-layer structure, and different functional material layers are combined together through extrusion, lamination and other processes to meet specific packaging needs. The main feature of polyethylene barrier film is its good barrier performance, which can effectively prevent the penetration of gases such as oxygen, moisture, and carbon dioxide, thereby extending the shelf life of food and protecting the product from pollution from the external environment. In the production process of polyethylene plastic film, when the film is formed, its surface temperature is usually very high, and it is necessary to use effective cooling methods to shape it and reorganize the internal structure of the film to ensure its quality and performance. The existing polyethylene barrier film is generally cooled by spraying coolant on the surface after forming. Although this method can achieve the purpose of cooling to a certain extent, its cooling effect is often not ideal and has certain limitations. The method of spraying coolant may cause differences in cooling effect in different areas due to uneven distribution of coolant, differences in evaporation rate and the influence of film surface characteristics, making it difficult to achieve uniform and efficient cooling, limiting the improvement of cooling effect, and thus affecting the final performance of the film, such as barrier properties, tensile strength and transparency. Summary of the invention

[0003] The object of the present invention is to provide a polyethylene barrier film production device to solve the problem that the method of spraying coolant proposed in the above background technology may cause differences in cooling effect in different areas due to uneven distribution of coolant, differences in evaporation rate and the influence of film surface characteristics, making it difficult to achieve uniform and efficient cooling, limiting the improvement of cooling effect, and further affecting the final performance of the film, such as barrier properties, tensile strength and transparency.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polyethylene barrier film production device, comprising a cooling water tank, a plurality of No. 1 guide rollers are equidistantly connected to the inner side of the cooling water tank for rotation, a No. 1 fixed bracket is fixedly connected to both sides of the cooling water tank, a conveying roller is rotatably connected to the inner side of the No. 1 fixed bracket, a guide ring is symmetrically slidably connected to the outer side of the conveying roller, one side of the cooling water tank is fixedly connected to a supporting bottom plate, a No. 2 fixed bracket is fixedly connected to the top of the supporting bottom plate, a fixed bracket is fixedly connected to the top of the No. 2 fixed bracket, an inner fixed support plate is fixedly connected to the inner side of the No. 2 fixed bracket, a cylinder is installed at the bottom of the inner fixed support plate, and the output end of the cylinder is fixedly connected to An inner sliding support plate is connected, and the inner sliding support plate is slidingly connected to the second fixed bracket, the top of the inner sliding support plate is symmetrically fixedly connected with an adjusting bracket, and the adjusting bracket is slidably connected to the second fixed bracket, the inner sides of the adjusting bracket and the fixed bracket are rotatably connected with cold conduction rollers, both ends of the cold conduction roller are fixedly connected with water pipes, the interior of the cold conduction roller is symmetrically provided with two water passage cavities, the water passage pipes are connected with the water passage pipes, a plurality of water conduction holes are equidistantly provided inside the water passage cavities, one end of the water passage pipe is installed with a rotating joint, the top of the cooling water tank is fixedly connected with a support frame, the inner side of the support frame is fixedly connected with a fixed bellows, and the bottom of the fixed bellows is fixedly connected with a plurality of blowing heads equidistantly.

[0005] As a preferred solution of the present invention: a fan is installed on the top of the support frame, the output end of the fan is connected to the fixed bellows via an air duct, an insulation bellows is fixedly connected to the top of the support frame, the input end of the fan is connected to the insulation bellows via an air duct, and an S-shaped cooling water pipe is fixedly connected to the inside of the insulation bellows.

[0006] As a preferred solution of the present invention: one side of the heat-insulating bellows is fixedly connected to an air inlet pipe, and one side of the air inlet pipe is fixedly connected to a filter screen.

[0007] As a preferred solution of the present invention: the conveying roller is internally rotatably connected with a bidirectional screw rod, the outer side of the bidirectional screw rod is symmetrically threadedly connected with a movable slider, the movable slider is slidably connected to the conveying roller, the outer side of the movable slider is equidistantly fixed with four fixed support plates, the fixed support plates are slidably connected to the conveying roller, and the outer side of the fixed support plates is fixedly connected to the guide ring.

[0008] As a preferred solution of the present invention: a worm wheel is fixedly connected to the outer side of the bidirectional screw, a worm is rotatably connected to the inner side of the conveying roller, and the worm is meshingly connected to the worm wheel.

[0009] As a preferred solution of the present invention: the outer side of the conveying roller is rotatably connected with a rotating screw block, and one end of the worm is fixedly connected to the rotating screw block.

[0010] As a preferred solution of the present invention: a plurality of cooling water inlet pipes are fixedly connected inside the cooling water tank.

[0011] As a preferred solution of the present invention: a plurality of cooling water outlet pipes are fixedly connected inside the cooling water tank, and solenoid valves are installed on both the cooling water inlet pipe and the cooling water outlet pipe.

[0012] As a preferred solution of the present invention: an inner fixing frame is fixedly connected to the inner side of the cooling water tank, and a No. 2 guide roller is rotatably connected to the inner side of the inner fixing frame.

[0013] As a preferred solution of the present invention: the inner sliding support plate is symmetrically slidably connected to a limiting slide rod, the top end of the limiting slide rod is fixedly connected to the second fixed bracket, and the bottom end of the limiting slide rod is fixedly connected to the inner fixed support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes the transportation of the polyethylene barrier film through the cooling roller by arranging a water pipe, a water cavity and a water guide hole, and injects cooling liquid into the water cavity and the water guide hole through one of the water pipes to pre-cool the polyethylene barrier film transported on the cooling roller; by arranging a cooling water tank, a No. 1 guide roller and a conveying roller, the polyethylene barrier film is further cooled by the cooling liquid after entering the cooling water tank; the air blowing heads at the bottom of the fixed bellows are combined to blow cold air to cool the polyethylene barrier film, thereby fully cooling the polyethylene barrier film, improving the cooling effect and avoiding affecting the final performance of the film; by arranging a guide ring, the conveying position of the polyethylene barrier film is guided to avoid the deviation of the polyethylene barrier film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0016] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a schematic diagram of the structure of the conveying roller of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the cooling roller of the present invention;

[0019] Figure 5 It is a schematic diagram of the internal structure of the conveying roller of the present invention.

[0020] In the figure: 1. Cooling water tank; 2. No. 1 guide roller; 3. Cooling water inlet pipe; 4. Cooling water outlet pipe; 5. Internal fixed frame; 6. No. 2 guide roller; 7. No. 1 fixed bracket; 8. Conveying roller; 9. Guide ring; 10. Bidirectional screw; 11. Moving slider; 12. Fixed support plate; 13. Worm gear; 14. Worm; 15. Rotating screw block; 16. No. 2 fixed bracket; 17. Internal fixed support plate; 18. Air Cylinder; 19. Inner sliding support plate; 20. Limiting slide bar; 21. Adjusting bracket; 22. Fixed bracket; 23. Cooling roller; 24. Water pipe; 25. Water cavity; 26. Water guide hole; 27. Support frame; 28. Fixed bellows; 29. ​​Blowing head; 30. Fan; 31. Insulating bellows; 32. S-shaped cooling water pipe; 33. Air inlet pipe; 34. Filter; 35. Rotating joint; 36. Support bottom plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 5The present invention provides a technical solution: a polyethylene barrier film production device, comprising a cooling water tank 1, a plurality of No. 1 guide rollers 2 are equidistantly connected to the inner side of the cooling water tank 1, a No. 1 fixed bracket 7 is fixedly connected to both sides of the cooling water tank 1, a conveying roller 8 is rotatably connected to the inner side of the No. 1 fixed bracket 7, a guide ring 9 is symmetrically slidably connected to the outer side of the conveying roller 8, a support bottom plate 36 is fixedly connected to one side of the cooling water tank 1, a No. 2 fixed bracket 16 is fixedly connected to the top of the support bottom plate 36, a fixed frame 22 is fixedly connected to the top of the No. 2 fixed bracket 16, an inner fixed support plate 17 is fixedly connected to the inner side of the No. 2 fixed bracket 16, a cylinder 18 is installed at the bottom of the inner fixed support plate 17, an inner sliding support plate 19 is fixedly connected to the output end of the cylinder 18, the inner sliding support plate 19 is slidably connected to the No. 2 fixed bracket 16, and the top of the inner sliding support plate 19 is symmetrically fixed. An adjusting bracket 21 is fixedly connected, and the adjusting bracket 21 is slidably connected to the second fixed bracket 16. The inner sides of the adjusting bracket 21 and the fixed bracket 22 are rotatably connected with a cold roller 23. Both ends of the cold roller 23 are fixedly connected with a water pipe 24. Two water passage chambers 25 are symmetrically opened inside the cold roller 23. The water pipes 24 are connected to the water pipes 24. A plurality of water guide holes 26 are equidistantly opened inside the water chamber 25. A rotating joint 35 is installed at one end of the water pipe 24. A supporting frame 27 is fixedly connected to the top of the cooling water tank 1, and a fixed bellows 28 is fixedly connected to the inner side of the supporting frame 27. A plurality of blowing heads 29 are equidistantly fixedly connected to the bottom of the fixed bellows 28. The polyethylene barrier film cooled by the coolant in the cooling water tank 1 is cooled by blowing cold air through the blowing heads 29 at the bottom of the fixed bellows 28, so as to further cool the polyethylene barrier film.

[0023] Among them, a fan 30 is installed on the top of the support frame 27, and the output end of the fan 30 is connected to the fixed bellows 28 through an air duct. An insulation bellows 31 is fixedly connected to the top of the support frame 27, and the input end of the fan 30 is connected to the insulation bellows 31 through an air duct. An S-shaped cooling water pipe 32 is fixedly connected to the inside of the insulation bellows 31, and the airflow in the insulation bellows 31 is cooled by the S-shaped cooling water pipe 32.

[0024] Among them, one side of the heat preservation bellows 31 is fixedly connected with an air inlet pipe 33, and one side of the air inlet pipe 33 is fixedly connected with a filter 34. The filter 34 filters out impurities in the external air to prevent the impurities from entering the heat preservation bellows 31 and causing influence.

[0025] Among them, the conveying roller 8 is internally rotatably connected with a bidirectional screw rod 10, and the outer side of the bidirectional screw rod 10 is symmetrically threadedly connected with a moving slider 11, the moving slider 11 is slidingly connected to the conveying roller 8, and the outer side of the moving slider 11 is equidistantly fixedly connected with four fixed support plates 12, the fixed support plates 12 are slidingly connected to the conveying roller 8, and the outer side of the fixed support plates 12 is fixedly connected to the guide ring 9. When the bidirectional screw rod 10 is rotated, the outer symmetrical moving slider 11 is driven to move, and when the moving slider 11 moves, the fixed support plate 12 is driven to move. The fixed support plate 12 drives the guide ring 9 to slide on the outer side of the conveying roller 8 to limit the distance between the two guide rings 9, and the polyethylene barrier film is guided and conveyed.

[0026] Among them, the outer side of the bidirectional screw 10 is fixedly connected to a worm wheel 13, and the inner side of the conveying roller 8 is rotatably connected to a worm 14. The worm 14 is meshed with the worm wheel 13. When the worm 14 rotates, it drives the meshed worm wheel 13 to rotate. When the worm wheel 13 rotates, it drives the inner bidirectional screw 10 to rotate and adjust.

[0027] The outer side of the conveying roller 8 is rotatably connected to a rotating screw block 15 , and one end of the worm 14 is fixedly connected to the rotating screw block 15 . The worm 14 is rotated by rotating the screw block 15 , so that the rotation adjustment of the worm 14 and the worm wheel 13 is convenient.

[0028] A plurality of cooling water inlet pipes 3 are fixedly connected to the interior of the cooling water tank 1 , and coolant is injected into the cooling water tank 1 through the cooling water inlet pipes 3 .

[0029] Among them, a plurality of cooling water outlet pipes 4 are fixedly connected inside the cooling water tank 1 , and solenoid valves are installed on the cooling water inlet pipe 3 and the cooling water outlet pipe 4 , and the coolant in the cooling water tank 1 is discharged through the cooling water outlet pipe 4 .

[0030] Among them, the inner side of the cooling water tank 1 is fixedly connected with an inner fixing frame 5, and the inner side of the inner fixing frame 5 is rotatably connected with a second guide roller 6, and the polyethylene barrier film is guided and discharged by the second guide roller 6 rotating inside the inner fixing frame 5.

[0031] Among them, the inner sliding support plate 19 is symmetrically slidably connected to the limit slide bar 20, the top end of the limit slide bar 20 is fixedly connected to the second fixed bracket 16, and the bottom end of the limit slide bar 20 is fixedly connected to the inner fixed support plate 17. The sliding position of the inner sliding support plate 19 on the inner side of the second fixed bracket 16 is limited by the limit slide bar 20, thereby improving the stability of the adjustment.

[0032] Specifically, the polyethylene barrier film is transported by adjusting the bracket 21 and the cold roller 23 on the inner side of the fixed frame 22, and the coolant is introduced into the water cavity 25 opened in the cold roller 23 through one of the water pipes 24. The coolant enters another water cavity 25 through each water guide hole 26, and is discharged through another water pipe 24 connected to the other water cavity 25. The polyethylene barrier film transported through the cold roller 23 is pre-cooled and initially cooled. The inner sliding support plate 19 is driven up and down for adjustment by the output end of the cylinder 18. The height position of the adjusting bracket 21 and the inner cold roller 23 is adjusted by the inner sliding support plate 19 to adjust the tightness. The polyethylene barrier film is guided by the guide ring 9 symmetrically on the outer side of the conveying roller 8. The rotating screw block 15 is rotated, and the rotating screw block 15 drives the worm 14 to rotate when the rotating screw block 15 rotates, and the worm 14 drives the meshing worm gear when the worm 14 rotates. 13 rotates, the worm gear 13 drives the inner bidirectional screw 10 to rotate, and the bidirectional screw 10 drives the outer movable slider 11 to move. When the movable slider 11 moves, it drives the guide ring 9 to slide and adjust on the outer side of the conveying roller 8 through the fixed support plate 12, and adjusts the distance between the two guide rings 9 to complete the guiding treatment of the polyethylene barrier film. The polyethylene barrier film enters the cooling water tank 1 and is guided by each No. 1 guide roller 2 and No. 2 guide roller 6 to complete further cooling treatment. At the same time, coolant is introduced into the S-shaped cooling water pipe 32, and the fan 30 exhausts air through the insulation bellows 31. The external air is filtered through the filter net 34 and then enters the air inlet pipe 33. The airflow is cooled by the S-shaped cooling water pipe 32 in the insulation bellows 31. After cooling, it is discharged through the blowing heads 29 at the bottom of the fixed bellows 28, and the polyethylene barrier film is further cooled and cooled by the blowing heads 29.

[0033] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0035] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyethylene barrier film production device, characterized in that: The invention comprises a cooling water tank (1), wherein the inner side of the cooling water tank (1) is equidistantly connected to a plurality of No. 1 guide rollers (2), both sides of the cooling water tank (1) are fixedly connected to No. 1 fixed brackets (7), the inner side of the No. 1 fixed bracket (7) is rotatably connected to a conveying roller (8), the outer side of the conveying roller (8) is symmetrically slidably connected to a guide ring (9), one side of the cooling water tank (1) is fixedly connected to a support base plate (36), the top of the support base plate (36) is fixedly connected to a No. 2 fixed bracket (16), the top of the No. 2 fixed bracket (16) is fixedly connected to a fixed frame (22), the inner side of the No. 2 fixed bracket (16) is fixedly connected to an inner fixed support plate (17), the bottom of the inner fixed support plate (17) is installed with a cylinder (18), the output end of the cylinder (18) is fixedly connected to an inner sliding support plate (19), the inner sliding support plate (19) and the No. 2 fixed bracket (16) are fixedly connected to each other. ) is slidably connected, the top of the inner sliding support plate (19) is symmetrically fixedly connected with an adjustment bracket (21), the adjustment bracket (21) is slidably connected with the second fixed bracket (16), the inner sides of the adjustment bracket (21) and the fixed bracket (22) are rotatably connected with a cooling roller (23), both ends of the cooling roller (23) are fixedly connected with a water pipe (24), the interior of the cooling roller (23) is symmetrically provided with two water passage cavities (25), the water pipes (24) are connected with the water pipes (24), the interior of the water passage cavity (25) is equidistantly provided with a plurality of water guide holes (26), one end of the water pipe (24) is installed with a rotary joint (35), the top of the cooling water tank (1) is fixedly connected with a support frame (27), the inner side of the support frame (27) is fixedly connected with a fixed bellows (28), and the bottom of the fixed bellows (28) is fixedly connected with a plurality of blowing heads (29) equidistantly.

2. A polyethylene barrier film production device according to claim 1, characterized in that: A fan (30) is installed on the top of the support frame (27), the output end of the fan (30) is connected to the fixed bellows (28) via an air duct, a heat preservation bellows (31) is fixedly connected to the top of the support frame (27), the input end of the fan (30) is connected to the heat preservation bellows (31) via an air duct, and an S-shaped cooling water pipe (32) is fixedly connected inside the heat preservation bellows (31).

3. A polyethylene barrier film production device according to claim 2, characterized in that: One side of the heat preservation wind box (31) is fixedly connected to an air inlet pipe (33), and one side of the air inlet pipe (33) is fixedly connected to a filter screen (34).

4. A polyethylene barrier film production device according to claim 3, characterized in that: The conveying roller (8) is internally rotatably connected to a bidirectional screw rod (10), the outer side of the bidirectional screw rod (10) is symmetrically threadedly connected to a movable slider (11), the movable slider (11) is slidably connected to the conveying roller (8), the outer side of the movable slider (11) is equidistantly fixedly connected to four fixed support plates (12), the fixed support plates (12) are slidably connected to the conveying roller (8), and the outer side of the fixed support plates (12) is fixedly connected to the guide ring (9).

5. A polyethylene barrier film production device according to claim 4, characterized in that: The outer side of the bidirectional screw (10) is fixedly connected to a worm wheel (13), the inner side of the conveying roller (8) is rotatably connected to a worm (14), and the worm (14) is meshingly connected to the worm wheel (13).

6. A polyethylene barrier film production device according to claim 5, characterized in that: The outer side of the conveying roller (8) is rotatably connected to a rotating screw block (15), and one end of the worm (14) is fixedly connected to the rotating screw block (15).

7. A polyethylene barrier film production device according to claim 6, characterized in that: A plurality of cooling water inlet pipes (3) are fixedly connected to the interior of the cooling water tank (1).

8. A polyethylene barrier film production device according to claim 7, characterized in that: A plurality of cooling water outlet pipes (4) are fixedly connected to the interior of the cooling water tank (1), and electromagnetic valves are installed on both the cooling water inlet pipe (3) and the cooling water outlet pipe (4).

9. A polyethylene barrier film production device according to claim 8, characterized in that: An inner fixing frame (5) is fixedly connected to the inner side of the cooling water tank (1), and a second guide roller (6) is rotatably connected to the inner side of the inner fixing frame (5).

10. A polyethylene barrier film production device according to claim 9, characterized in that: The inner sliding support plate (19) is symmetrically slidably connected to a limit slide bar (20), the top end of the limit slide bar (20) is fixedly connected to the second fixed bracket (16), and the bottom end of the limit slide bar (20) is fixedly connected to the inner fixed support plate (17).

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