Polyethylene film blow molding device

Abstract

The utility model discloses a polyethylene film blow molding device which comprises a base, cooling grooves are fixedly connected to the upper surface of the base, rotating grooves are formed in the sides, away from each other, of the cooling grooves, two guide rollers are rotationally connected into each rotating groove, a water pump is fixedly connected to one side of each cooling groove, and a water pump is fixedly connected to the other side of each cooling groove. And the water suction end of the water pump extends to one side of the interior of the cooling tank. According to the device, the first servo motor, the second rotating rod, the first conical tooth, the first rotating rod, the second conical tooth, the beating piece and the like are arranged, the first servo motor drives the second rotating rod to rotate through one chain wheel, and the second rotating rod drives the second conical tooth to rotate through the first conical tooth; second conical teeth drive a plurality of beating pieces to rotate through a first rotating rod, the beating pieces scatter water discharged by a water pipe, the heat dissipation speed of the water is increased, and the situation that the water temperature is too high due to long-time use of the water in the cooling tank, and the film cooling and shaping efficiency is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of film blow molding equipment, and in particular to a polyethylene film blow molding equipment. Background Technology

[0002] Thin film blow molding is a method of making plastic films from plastic raw materials. Its basic principle is to heat the plastic to a viscous flow state, and then pass it through a die with an annular gap under pressure to transform the viscous flow state into a highly elastic continuous state. Subsequently, compressed air blown into the inner ring of the die head inflates the tubular film, and it is shaped by a cooling device.

[0003] However, in existing equipment, some films are cooled and shaped by water during blow molding. But after a long period of use, the water temperature becomes too high, which affects the efficiency of film cooling and shaping. Therefore, a polyethylene film blow molding device is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyethylene film blow molding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a polyethylene film blow molding device, comprising a base, a cooling tank fixedly connected to the upper surface of the base, a rotating groove provided on the opposite side of the cooling tank, two guide rollers rotatably connected in each rotating groove, a water pump fixedly connected to one side of the cooling tank, the suction end of the water pump extending to the inside of the cooling tank, a water pipe fixedly connected to the outlet end of the water pump, a heat dissipation box fixedly connected to the upper surface of the base, one end of the water pipe penetrating and fixedly connected to the upper surface of the heat dissipation box, a connecting frame fixedly connected to one side of the heat dissipation box and one side of the cooling tank, a fixing frame fixedly connected to one side of the heat dissipation box, and a heat dissipation structure provided on the fixing frame.

[0006] As a further description of the above technical solution:

[0007] The heat sink is fixedly connected to the inside of a first fixing plate, and an air outlet pipe is fixedly connected to the upper surface of the heat sink. A fixing rod is fixedly connected to the inside of the air outlet pipe.

[0008] As a further description of the above technical solution:

[0009] The heat dissipation structure includes a first rotating rod that is rotatably connected through the upper surface of the first fixed plate. One end of the first rotating rod is fixedly connected to a plurality of striking plates, and the other end is fixedly connected to a second conical tooth.

[0010] As a further description of the above technical solution:

[0011] A second rotating rod is rotatably connected through one side of the heat sink, and a first conical tooth is fixedly connected to one end of the second rotating rod. The first conical tooth and the second conical tooth mesh with each other.

[0012] As a further description of the above technical solution:

[0013] A third rotating rod is rotatably connected through one side of the fixed rod. Multiple fan blades are fixedly connected to one end of the third rotating rod. A sprocket is fixedly connected to one end of both the third rotating rod and the second rotating rod. A chain is movably mounted on both sprockets.

[0014] As a further description of the above technical solution:

[0015] A first servo motor is fixedly connected to one side of the fixed frame, and the output shaft of the first servo motor is fixedly connected to one side of one of the sprockets.

[0016] As a further description of the above technical solution:

[0017] A gantry column is fixedly connected to the upper surface of the cooling tank, a cylinder is fixedly connected to the upper surface of the gantry column, a gantry frame is fixedly connected to the piston end of the cylinder, and a first pressure roller is rotatably connected to opposite sides inside the gantry frame.

[0018] As a further description of the above technical solution:

[0019] Four columns are fixedly connected to the upper surface of the base, and a second fixing plate is fixedly connected to the upper surface of the four columns. A film blowing machine is fixedly connected to the second fixing plate, and a feed pipe is fixedly connected to the feed port of the film blowing machine.

[0020] As a further description of the above technical solution:

[0021] Two uprights on the same side are fixedly connected to a horizontal column on opposite sides. A rotating roller is rotatably connected to opposite sides of the two horizontal columns. A second servo motor is fixedly connected to one side of one of the horizontal columns. The output shaft of the second servo motor is fixedly connected to one end of the rotating roller. A moving groove is provided on opposite sides of the two horizontal columns. A sliding rod is fixedly connected in each moving groove. A sliding block is slidably connected to each sliding rod. A second pressure roller is rotatably connected to opposite sides of the two sliding blocks. A spring is movably provided on each sliding rod. One end of each spring is fixedly connected to one side of the corresponding sliding block, and the other end is fixedly connected to one side inside the corresponding moving groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. Compared with the prior art, this polyethylene film blowing device, by setting up a first servo motor, a second rotating rod, a first conical tooth, a first rotating rod, a second conical tooth, and striking plates, etc., the first servo motor drives the second rotating rod to rotate through one of the sprockets, the second rotating rod drives the second conical tooth to rotate through the first conical tooth, and the second conical tooth drives multiple striking plates to rotate through the first rotating rod. The multiple striking plates disperse the water discharged from the water pipe, accelerate the heat dissipation of the water, and prevent the water in the cooling tank from becoming too hot after long-term use, which would affect the efficiency of film cooling and shaping.

[0024] 2. Compared with the existing technology, this polyethylene film blow molding device, by setting up sprockets, a third rotating rod, fan blades and chains, etc., one sprocket drives another sprocket to rotate through the chain, causing the third rotating rod to rotate. The third rotating rod drives multiple fan blades to rotate. When the multiple fan blades rotate, the temperature inside the heat dissipation box is quickly discharged through the air outlet pipe, which helps to improve the heat dissipation efficiency of water. Attached Figure Description

[0025] Figure 1 This is a first-view schematic diagram of a polyethylene film blowing device proposed in this utility model.

[0026] Figure 2 This is a cross-sectional view of a polyethylene film blowing device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the heat dissipation structure of a polyethylene film blow molding device proposed in this utility model;

[0028] Figure 4 This is an exploded view of the heat dissipation structure of a polyethylene film blow molding device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the sliding rod and sliding block of a polyethylene film blow molding device proposed in this utility model;

[0030] Figure 6 Exploded view of the sliding rod and sliding block of the polyethylene film blow molding device proposed in this utility model;

[0031] Figure 7 This is a schematic diagram of the gantry and cylinder of a polyethylene film blow molding device proposed in this utility model;

[0032] Figure 8 This is an exploded view of the gantry and cylinder of a polyethylene film blow molding device proposed in this utility model.

[0033] Legend:

[0034] 1. Base; 2. Cooling tank; 3. Guide roller; 4. Water pump; 5. Water pipe; 6. Heat dissipation box; 7. Fixing frame; 8. Heat dissipation structure; 801. First servo motor; 802. Sprocket; 803. Second rotating rod; 804. First conical tooth; 805. First rotating rod; 806. Second conical tooth; 807. Impact plate; 808. Third rotating rod; 809. Fan blade; 8010. Chain; 9. First fixing plate; 10. Air outlet pipe; 11. Fixing rod; 12. Connecting frame; 13. Gantry column; 14. Cylinder; 15. Gantry frame; 16. First pressure roller; 17. Column; 18. Second fixing plate; 19. Film blow molding machine; 20. Horizontal column; 21. Rotating roller; 22. Second servo motor; 23. Sliding rod; 24. Sliding block; 25. Second pressure roller; 26. Spring. Detailed Implementation

[0035] 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.

[0036] Reference Figures 1 to 8 This utility model provides a polyethylene film blow molding device, comprising a base 1, a cooling tank 2 fixedly connected to the upper surface of the base 1, a gantry column 13 fixedly connected to the upper surface of the cooling tank 2, a cylinder 14 fixedly connected to the upper surface of the gantry column 13, a gantry frame 15 fixedly connected to the piston end of the cylinder 14, and a first pressure roller 16 rotatably connected to opposite sides inside the gantry frame 15. The cylinder 14 drives the first pressure roller 16 to move through the gantry frame 15, and the first pressure roller 16 presses the film into the cooling tank 2, where it is cooled by water inside the cooling tank 2. Rotating grooves are provided on opposite sides of the cooling tank 2, and two rotating rollers are rotatably connected in each rotating groove. A guide roller 3, a water pump 4 is fixedly connected to one side of the cooling tank 2, the water pump 4 extends to the inside of the cooling tank 2, the water pump 4 is fixedly connected to the water outlet of the water pump 4, a heat dissipation box 6 is fixedly connected to the upper surface of the base 1, a first fixing plate 9 is fixedly connected to the inside of the heat dissipation box 6, an air outlet pipe 10 is fixedly connected to the upper surface of the heat dissipation box 6, a fixing rod 11 is fixedly connected to the inside of the air outlet pipe 10, one end of the water pipe 5 passes through and is fixedly connected to the upper surface of the heat dissipation box 6, a connecting frame 12 is fixedly connected to one side of the heat dissipation box 6 and one side of the cooling tank 2, a fixing frame 7 is fixedly connected to one side of the heat dissipation box 6, and a heat dissipation structure 8 is provided on the fixing frame 7;

[0037] To achieve heat dissipation, the heat dissipation structure 8 includes a first rotating rod 805 that is rotatably connected through the upper surface of the first fixed plate 9. One end of the first rotating rod 805 is fixedly connected to a plurality of striking plates 807, and the other end is fixedly connected to a second conical tooth 806. A second rotating rod 803 is rotatably connected through one side of the heat dissipation box 6. One end of the second rotating rod 803 is fixedly connected to a first conical tooth 804. The first conical tooth 804 and the second conical tooth 806 are meshed together. The first servo motor 801 drives the second rotating rod 803 to rotate through one of the sprockets 802. The second rotating rod 803 drives the second conical tooth 806 to rotate through the first conical tooth 804. The second conical tooth 806 drives the plurality of striking plates 807 to rotate through the first rotating rod 805. The plurality of striking plates 807 disperse the water discharged from the water pipe 5, accelerate the heat dissipation of the water, and prevent the water inside the cooling tank 2 from becoming too hot after long-term use, which would affect the efficiency of film cooling and shaping.

[0038] To achieve rapid heat dissipation from the heat exchanger 6, a third rotating rod 808 is rotatably connected to one side of the fixed rod 11. Multiple fan blades 809 are fixedly connected to one end of the third rotating rod 808. A sprocket 802 is fixedly connected to one end of both the third rotating rod 808 and the second rotating rod 803. A first servo motor 801 is fixedly connected to one side of the fixed frame 7. The output shaft of the first servo motor 801 is fixedly connected to one side of one of the sprockets 802. A chain 8010 is movably mounted on both sprockets 802. One sprocket 802 drives the other sprocket 802 to rotate through the chain 8010, causing the third rotating rod 808 to rotate. The third rotating rod 808 drives multiple fan blades 809 to rotate. When the multiple fan blades 809 rotate, the heat inside the heat exchanger 6 is quickly discharged from the air outlet 10, which helps to improve the heat dissipation efficiency of the water.

[0039] To achieve the extrusion purpose, four columns 17 are fixedly connected to the upper surface of the base 1. A second fixed plate 18 is fixedly connected to the upper surface of the four columns 17. A film blowing machine 19 is fixedly connected to the second fixed plate 18. A feed pipe is fixedly connected to the feed inlet of the film blowing machine 19. A horizontal column 20 is fixedly connected to the opposite side of two columns 17 located on the same side. A rotating roller 21 is rotatably connected to the opposite side of the two horizontal columns 20. A second servo motor 22 is fixedly connected to one side of one of the horizontal columns 20. The output shaft of the second servo motor 22 is fixedly connected to one end of the rotating roller 21. Moving slots are provided on the opposite sides of the two horizontal columns 20, and a sliding rod 23 is fixedly connected to each moving slot. Each sliding rod 23 is slidably connected to a sliding block 24. The two sliding blocks 24 are rotatably connected to a second pressure roller 25 on opposite sides. Each sliding rod 23 is movably equipped with a spring 26. One end of each spring 26 is fixedly connected to one side of the corresponding sliding block 24, and the other end is fixedly connected to one side of the corresponding moving groove. When the film blowing machine 19 blows out the film, one end of the film passes through the middle of the rotating roller 21 and the second pressure roller 25. Then, under the elasticity of the two springs 26, the two sliding blocks 24 drive the second pressure roller 25 to squeeze the film. Then, the second servo motor 22 drives the rotating roller 21 to rotate. The second rotating roller 21 conveys the film and squeezes out the air in the film, making it easier for the film to be wound onto the take-up reel.

[0040] Working principle: When the film blowing machine 19 blows out the film, one end of the film passes between the rotating roller 21 and the second pressure roller 25. Then, under the elasticity of the two springs 26, the two sliding blocks 24 drive the second pressure roller 25 to squeeze the film. Then, the second servo motor 22 drives the rotating roller 21 to rotate, and the second rotating roller 21 conveys the film, squeezing out the air in the film, making it easier for the film to be wound onto the take-up reel. Then, the film passes through the top of the two guide rollers 3 and the bottom of the first pressure roller 16. Then, the cylinder 14 drives the first pressure roller 16 to move through the gantry frame 15. The first pressure roller 16 presses the film into the cooling tank 2, where it is cooled by water inside the cooling tank 2. At the same time, the water pump 4 delivers the water from the cooling tank 2 into the water pipe 5, and then discharges it from one end of the water pipe 5. Meanwhile, the first servo motor 801 drives the second rotating roller 25 through one of the sprockets 802. The rotating rod 803 rotates, and the second rotating rod 803 drives the second conical tooth 806 to rotate through the first conical tooth 804. The second conical tooth 806 drives multiple striking plates 807 to rotate through the first rotating rod 805. The multiple striking plates 807 disperse the water discharged from the water pipe 5, accelerate the heat dissipation of the water, and prevent the water in the cooling tank 2 from becoming too hot after long-term use, which would affect the efficiency of film cooling and shaping. The cooled water falls to the bottom of the heat sink 6 and then flows into the cooling tank 2 through the connecting frame 12. At the same time, one of the sprockets 802 drives another sprocket 802 to rotate through the chain 8010, causing the third rotating rod 808 to rotate. The third rotating rod 808 drives multiple fan blades 809 to rotate. When the multiple fan blades 809 rotate, the heat inside the heat sink 6 is quickly discharged from the air outlet pipe 10, which helps to improve the heat dissipation efficiency of the water.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyethylene film blowing device comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a cooling tank (2), the side away from the cooling tank (2) is provided with rotating grooves, two guide rollers (3) are rotatably connected in each rotating groove, one side of the cooling tank (2) is fixedly connected with a water pump (4), the water suction end of the water pump (4) extends to one side of the inside of the cooling tank (2), the water outlet end of the water pump (4) is fixedly connected with a water pipe (5), the upper surface of the base (1) is fixedly connected with a heat dissipation box (6), one end of the water pipe (5) penetrates through and is fixedly connected to the upper surface of the heat dissipation box (6), one side of the heat dissipation box (6) and one side of the cooling tank (2) are fixedly connected with a connecting frame (12), one side of the heat dissipation box (6) is fixedly connected with a fixed frame (7), and the fixed frame (7) is provided with a heat dissipation structure (8).

2. A polyethylene film blowing apparatus according to claim 1, wherein: The inside of the heat dissipation box (6) is fixedly connected with a first fixed plate (9), the upper surface of the heat dissipation box (6) is fixedly connected with an air outlet pipe (10), and the inside of the air outlet pipe (10) is fixedly connected with a fixed rod (11).

3. A polyethylene film blowing apparatus according to claim 2, wherein: The heat dissipation structure (8) comprises a first rotating rod (805) penetratingly and rotatably connected to the upper surface of the first fixed plate (9), one end of the first rotating rod (805) is fixedly connected with a plurality of beating pieces (807), and the other end is fixedly connected with a second conical tooth (806).

4. A polyethylene film blowing apparatus according to claim 3, wherein: One side of the heat dissipation box (6) is penetratingly and rotatably connected with a second rotating rod (803), one end of the second rotating rod (803) is fixedly connected with a first conical tooth (804), and the first conical tooth (804) is in meshing connection with the second conical tooth (806).

5. A polyethylene film blowing apparatus according to claim 4, wherein: One side of the fixed rod (11) is penetratingly and rotatably connected with a third rotating rod (808), one end of the third rotating rod (808) is fixedly connected with a plurality of fan blades (809), and one end of the third rotating rod (808) and one end of the second rotating rod (803) are fixedly connected with a sprocket (802), and the two sprockets (802) are commonly movably sleeved with a chain (8010).

6. A polyethylene film blowing apparatus according to claim 5, wherein: One side of the fixed frame (7) is fixedly connected with a first servo motor (801), and the output shaft of the first servo motor (801) is fixedly connected to one side of one of the sprockets (802).

7. A polyethylene film blowing apparatus according to claim 1, wherein: The upper surface of the cooling tank (2) is fixedly connected with a portal column (13), the upper surface of the portal column (13) is fixedly connected with a pneumatic cylinder (14), the piston end of the pneumatic cylinder (14) is fixedly connected with a portal frame (15), and the opposite sides of the inside of the portal frame (15) are commonly rotatably connected with first pressing rollers (16).

8. A polyethylene film blowing apparatus according to claim 1, wherein: The upper surface of the base (1) is fixedly connected with four vertical columns (17), the upper surfaces of the four vertical columns (17) are commonly fixedly connected with a second fixed plate (18), the second fixed plate (18) is fixedly connected with a film blow molding machine (19), and the feeding port of the film blow molding machine (19) is fixedly connected with a feeding pipe.

9. A polyethylene film blowing apparatus according to claim 8, wherein: The opposite sides of two of the upright columns (17) on the same side are fixedly connected with horizontal columns (20) in common, the opposite sides of two of the horizontal columns (20) are rotatably connected with rotating rollers (21) in common, one side of one of the horizontal columns (20) is fixedly connected with a second servo motor (22), the output shaft of the second servo motor (22) is fixedly connected with one end of the rotating roller (21), the opposite sides of two of the horizontal columns (20) are each provided with a moving groove, each of the moving grooves is fixedly connected with a sliding rod (23), each of the sliding rods (23) is slidably connected with a sliding block (24), the opposite sides of two of the sliding blocks (24) are rotatably connected with a second pressing roller (25) in common, each of the sliding rods (23) is movably provided with a spring (26), one end of each of the springs (26) is fixedly connected with one side of the corresponding sliding block (24), and the other end is fixedly connected with the inside of the corresponding moving groove.

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