Film blowing and exhausting equipment for producing PE (Poly Ethylene) film

Abstract

The utility model discloses film blowing and exhausting equipment for producing a PE (Poly Ethylene) film, which belongs to the field of production equipment and comprises a film blowing machine, a control panel is arranged in the middle of the front side of the film blowing machine, a feeding device is arranged on the left side of the film blowing machine, an exhaust pipe is arranged at the middle upper part of the right side of the film blowing machine, and an exhausting device is arranged at the right end of the exhaust pipe. And a winding device is arranged above the film blowing machine. The feeding device is arranged on the left side of the film blowing machine, plastic particles are melted through the feeding device and then blown into a plastic film through the film blowing machine, the plastic film is wound through the winding device, finished products are packaged, gas in the plastic film is collected through the exhaust device, and lubricating powder and trace plastic particles are sucked into the collecting box. And the air is filtered through a first filter screen and a second filter screen, so that the air is prevented from being dissipated in the air and injuring the body of a worker.

Description

Technical Field

[0001] This utility model belongs to the field of production equipment technology, specifically relating to a blown film exhaust device for producing PE film. Background Technology

[0002] PE film, short for polyethylene film, is a type of film produced from polyethylene (PE) granules. Polyethylene is a crystalline thermoplastic resin and one of the most widely used general-purpose resins in the world. PE film is characterized by its moisture resistance and low moisture permeability. Depending on the manufacturing method and control measures, products with different properties, such as low-density, medium-density, high-density polyethylene, and cross-linked polyethylene, can be manufactured.

[0003] Exhaust equipment for blown film production of PE film typically falls under the technical field of plastic film production equipment, particularly blown film machine technology. This equipment is primarily used during the PE film production process, where heated and melted plastic particles are blown into a film. It exhausts the generated gas to prevent the film from sticking together and ensures smooth production. To prevent film sticking during the blown film process, the blown gas often contains lubricating powder. Therefore, during exhaust, the lubricating powder and trace amounts of plastic particles generated during the heating process must be filtered to prevent them from escaping into the air and causing harm to workers. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing equipment struggles to filter lubricating powder and trace amounts of plastic particles generated during the heating process of plastics during exhaust, preventing them from escaping into the air and causing harm to workers.

[0005] The technical solution adopted to solve the above technical problems is: to provide a blown film exhaust equipment for producing PE film, including a blown film machine, a control panel is provided in the center of the front of the blown film machine, a feeding device is provided on the left side of the blown film machine, an exhaust pipe is provided in the upper middle part of the right side of the blown film machine, an exhaust device is provided at the right end of the exhaust pipe, and a winding device is provided above the blown film machine.

[0006] The above technical solution allows for the heating and melting of plastic granules via a feeding device, which then extrudes them into a blown film machine. The blown film machine then blows the film to form a plastic film, which is then wound up and packaged by a winding device. An exhaust device collects and treats the lubricating powder and trace amounts of plastic granules generated during the production process, preventing them from escaping into the air and causing harm to workers.

[0007] Furthermore, the blown film machine has an air blowing pipe in the middle of its top surface, and a plurality of exhaust holes on its top surface. The exhaust holes are located outside the air blowing pipe, and the exhaust holes and exhaust pipe are arranged correspondingly. The blown film machine also has a discharge port on its top surface, which is located outside the exhaust holes.

[0008] Furthermore, the feeding device includes a first motor, a melting tube is provided on the right side of the first motor, the melting tube is fixedly connected to the blown film machine, a feed port is provided on the left side of the top surface of the melting tube, and a fixing frame is fixedly connected to the bottom of the melting tube.

[0009] The above technical solution involves feeding plastic granules into a melting tube through a feed inlet. A first motor drives a rotor inside the melting tube to rotate, which in turn melts the granules with the help of a heating element inside the melting tube. The molten plastic liquid is then squeezed into the blown film machine by the rotation of the rotor and extruded through the discharge outlet. The blown film operation is carried out with the help of an air blowing pipe.

[0010] Furthermore, the exhaust device includes a collection box, which is fixedly connected to the exhaust pipe. The top surface of the collection box is provided with several reserved holes. The left side of the inside of the collection box is provided with a first filter screen, and the right side of the inside of the collection box is provided with a second filter screen. Both the first filter screen and the second filter screen are provided corresponding to the reserved holes.

[0011] Furthermore, a bellows is fixedly connected to the right side of the collection box. The bellows has a hollow structure. A second motor is provided on the right side of the bellows. Several rotating fan blades are fixedly connected to the output end of the second motor. The rotating fan blades are located inside the bellows.

[0012] The above technical solution uses a second motor to drive the rotating fan blades, which draw the lubricating powder and trace plastic particles generated during the film blowing process into the collection box through the exhaust pipe. The particles are then filtered through the first and second filters to prevent them from escaping into the air and causing harm to the workers.

[0013] Furthermore, the winding device includes a support frame, which is fixedly connected to the blown film machine. Several exhaust rollers are rotatably connected to the front side of the top surface of the support frame, and the exhaust rollers are located above the air blowing pipe. A take-up roller is rotatably connected to the rear side of the top surface of the support frame, and a third motor is fixedly connected to the right end of the take-up roller. The third motor is fixedly connected to the support frame.

[0014] The above technical solution uses a third motor to drive the take-up roller to rotate, which in turn drives the plastic film to be rolled up. The plastic film expels the internal gas between the exhaust rollers, and the finished plastic film is rolled up by the take-up roller for packaging.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention features a feeding device on the left side of a blown film machine. The feeding device melts plastic granules, which are then blown into a plastic film by the blown film machine. The film is then wound up by a winding device for packaging. An exhaust device collects the gas inside the plastic film, drawing lubricating powder and trace amounts of plastic granules into a collection box. These are then filtered through a first and a second filter to prevent them from escaping into the air and causing harm to workers. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the blown film exhaust device for producing PE film according to this utility model;

[0018] Figure 2 This is an exploded three-dimensional structural diagram of the exhaust device of the blown film exhaust equipment for producing PE film according to this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the feeding device of the blown film exhaust equipment for producing PE film according to this utility model;

[0020] Figure 4 This utility model relates to a blown film exhaust device for producing PE film. Figure 1 Enlarged view of point A;

[0021] Figure 5 This is a three-dimensional structural diagram of the air box part of the blown film exhaust device for producing PE film according to this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the collection device for the blown film exhaust equipment used in the production of PE film according to this utility model.

[0023] Reference numerals in the attached drawings: 1. Blown film machine; 2. Control panel; 3. Feeding device; 301. Fixing frame; 302. First motor; 303. Feed inlet; 304. Melting pipe; 4. Exhaust device; 401. Collection box; 402. Reserved hole; 403. First filter screen; 404. Second filter screen; 405. Air box; 406. Second motor; 407. Rotating fan blade; 5. Winding device; 501. Support frame; 502. Exhaust roller; 503. Take-up roller; 504. Third motor; 6. Exhaust pipe; 7. Air blowing pipe; 8. Discharge port; 9. Exhaust hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figure 1 - Figure 6As shown, a blown film extrusion device for producing PE film includes a blown film machine 1. A control panel 2 is located in the center of the front of the blown film machine 1. An air blowing pipe 7 is located in the center of the top surface of the blown film machine 1. The air blowing pipe 7 is used to blow plastic tubular film to prevent adhesion. Several exhaust holes 9 are located on the top surface of the blown film machine 1, outside the air blowing pipe 7. The exhaust holes 9 and exhaust pipe 7 are correspondingly arranged. A discharge port 8 is located on the top surface of the blown film machine 1, displaced outside the exhaust holes 9. A feeding device 3 is located on the left side of the blown film machine 1. The feeding device 3 includes a first motor 30. 2. The first motor 302 is used to drive the rotor installed inside the melting tube 304 to rotate, and to squeeze the molten plastic granules into the blown film machine 1. The melting tube 304 is located on the right side of the first motor 302. The melting tube 304 and the blown film machine 1 are fixedly connected. The melting tube 304 has a heating device inside, which is used to heat the plastic granules. The top left side of the melting tube 304 is provided with a feed port 303. The bottom of the melting tube 304 is fixedly connected with a fixing frame 301. The upper right side of the blown film machine 1 is provided with an exhaust pipe 6. The right end of the exhaust pipe 6 is provided with an exhaust device 4.

[0026] The exhaust device 4 includes a collection box 401, which is fixedly connected to an exhaust pipe 6. The top surface of the collection box 401 has several pre-drilled holes 402. A first filter screen 403 is located on the left side of the inside of the collection box 401. The first filter screen 403 is used to filter large particles of lubricating powder and plastic particles. A second filter screen 404 is located on the right side of the inside of the collection box 401. The second filter screen 404 contains activated carbon for adsorbing small particles of harmful substances. Both the first filter screen 403 and the second filter screen 404 are corresponding to the pre-drilled holes 402. A bellows 405 is fixedly connected to the right side of the collection box 401. The bellows 405 has a hollow structure, and a second motor 406 is located on the right side of the bellows 405. The output end of the second motor 406 is fixedly connected to several rotating fan blades 407, which are located inside the air box 405. A winding device 5 is provided above the blown film machine 1. The winding device 5 includes a support frame 501, which is fixedly connected to the blown film machine 1. Several exhaust rollers 502 are rotatably connected to the front of the top surface of the support frame 501. The exhaust rollers 502 are located above the air blowing pipe 7. A take-up roller 503 is rotatably connected to the rear of the top surface of the support frame 501. The take-up roller 503 is used to wind up the finished plastic film and package the finished product. A third motor 504 is fixedly connected to the right end of the take-up roller 503. The third motor 504 is fixedly connected to the support frame 501.

[0027] The working principle of this embodiment is as follows: plastic granules are put into the melting tube 304 through the feed port 303. The rotor and heating components inside the melting tube 304 are controlled by the control panel 2 to melt the granules. The molten plastic is then extruded through the discharge port 8 and blown into a plastic film with the help of the air blowing pipe 7. The gas in the plastic film is then squeezed out by the exhaust roller 502 set above the air blowing pipe 7. The finished plastic film is then rolled up by the take-up roller 503 driven by the third motor 504 and packaged. In order to prevent the plastic film from sticking during the blowing process, the gas blown out of the air blowing pipe 7 contains lubricating powder and trace plastic particles generated during the plastic heating process. Therefore, the top of the blowing machine 1 is provided with an exhaust hole 9, which is connected to the exhaust pipe 6 on the right side of the blowing machine 1. The second motor 406 drives the rotating fan blade 407 set inside the air box 405 to rotate, so that the lubricating powder and trace plastic particles are sucked into the collection box 401 and filtered through the first filter screen 403 and the second filter screen 404 to prevent them from escaping into the air and causing harm to the workers.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A blown film extrusion device for producing PE film, comprising a blown film machine (1), characterized in that: The blown film machine (1) has a control panel (2) in the center of the front, a feeding device (3) on the left side, an exhaust pipe (6) in the upper right side, an exhaust device (4) at the right end of the exhaust pipe (6), and a winding device (5) above the blown film machine (1). The exhaust device (4) includes a collection box (401), the collection box (401) and the exhaust pipe (6) are fixedly connected. The top surface of the collection box (401) is provided with a number of reserved holes (402). The left side of the inside of the collection box (401) is provided with a first filter screen (403), and the right side of the inside of the collection box (401) is provided with a second filter screen (404). The first filter screen (403) and the second filter screen (404) are both set corresponding to the reserved holes (402).

2. The blown film exhaust equipment for producing PE film according to claim 1, characterized in that, The blown film machine (1) has an air blowing pipe (7) in the middle of its top surface. The blown film machine (1) has several exhaust holes (9) on its top surface. The exhaust holes (9) are located outside the air blowing pipe (7). The exhaust holes (9) and the exhaust pipe (6) are arranged correspondingly. The blown film machine (1) has a discharge port (8) on its top surface. The discharge port (8) is located outside the exhaust holes (9).

3. The blown film exhaust equipment for producing PE film according to claim 1, characterized in that, The feeding device (3) includes a first motor (302), a melting tube (304) is provided on the right side of the first motor (302), the melting tube (304) is fixedly connected to the blown film machine (1), the top surface of the melting tube (304) is provided with a feed port (303) on the left side, and a fixing frame (301) is fixedly connected to the bottom of the melting tube (304).

4. The blown film exhaust equipment for producing PE film according to claim 1, characterized in that, A bellows (405) is fixedly connected to the right side of the collection box (401). The bellows (405) has a hollow structure. A second motor (406) is provided on the right side of the bellows (405). Several rotating fan blades (407) are fixedly connected to the output end of the second motor (406). The rotating fan blades (407) are located inside the bellows (405).

5. The blown film exhaust equipment for producing PE film according to claim 1, characterized in that, The winding device (5) includes a support frame (501), which is fixedly connected to the blown film machine (1). Several exhaust rollers (502) are rotatably connected to the front side of the top surface of the support frame (501). The exhaust rollers (502) are located above the blown air pipe (7). A take-up roller (503) is rotatably connected to the rear side of the top surface of the support frame (501). A third motor (504) is fixedly connected to the right end of the take-up roller (503). The third motor (504) is fixedly connected to the support frame (501).

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