Film blowing machine for PE film production

Abstract

The utility model relates to a film blowing machine for PE (polyethylene) film production, which comprises a shell with an opening at the top, a film blowing part is arranged in the shell, two opposite side walls of the shell are rotatably provided with rotating pipes in a penetrating manner, a cooling roller is fixedly connected between the two rotating pipes, a PE film is in contact with the upper half part of the cooling roller after film blowing, and the lower half part of the cooling roller is in contact with the film blowing part. A spiral water channel is formed in the cooling roller, the interiors of the two rotating pipes communicate with the water channel, a water pump is fixedly connected to one side of the shell, the input end of the water pump extends to the lower half portion in the shell, and the output end of the water pump is rotationally arranged in one rotating pipe in a penetrating mode. The utility model relates to the technical field of PE film processing. The water pump works to convey low-temperature water into the water channel from the rotating pipe and exchanges heat with the cooling roller, and meanwhile, the cooling roller exchanges heat with a PE film which is just blown, so that the PE film is cooled, the PE film is prevented from being deformed during rolling, and the quality of the PE film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE film processing, in particular to a film blowing machine for PE film production. Background Art

[0002] PE film has the characteristics of high tensile strength, large elongation, good self-adhesion and high transparency. It is widely used in foreign trade export, papermaking, hardware, plastic chemicals, building materials, food and medicine industries.

[0003] The film blowing machine heats and melts PE granules, then passes them through a film blower to form a film sleeve, which is then wound up by a reel. However, the film is very hot right after it passes through the film blower, and winding it directly can easily cause the film to deform, thereby reducing its quality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a film blowing machine for producing PE films, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A film blowing machine for producing PE film comprises a shell with an opening at the top, a film blowing part is arranged in the shell, rotating tubes are rotatably penetrated by the opposite side walls of the shell, a cooling roller is fixedly connected between the two rotating tubes, the PE film contacts the upper half of the cooling roller after film blowing, a spiral water channel is opened inside the cooling roller, the interiors of the two rotating tubes are communicated with the water channel, a water pump is fixedly connected to one side of the shell, the water pump input end extends to the lower half of the shell, the water pump output end is rotatably penetrated by one of the rotating tubes, and water is added to the lower half of the shell.

[0007] Furthermore, the film blowing part includes a heating cylinder, the bottom of which is fixedly connected to the inner bottom wall of the outer shell by two brackets, a film blower is provided on one side of the heating cylinder, a drive rod is connected to the heating cylinder for horizontal rotation, the outer peripheral surface of the drive rod is located inside the heating cylinder and is fixedly sleeved with spiral blades, a heating plate is fixedly connected to the inner wall of the heating cylinder, the drive rod rotates through the inner wall of the outer shell, and a first drive member is provided on one side of the outer shell, the first drive member is used to drive the drive rod to rotate, and a feed pipe is fixedly passed through the top of the heating cylinder.

[0008] Furthermore, the middle section of the feed pipe is inclined, and screens are fixedly provided on the top and bottom of the middle section of the feed pipe.

[0009] Furthermore, a driven rod is rotatably connected in the middle section of the feed pipe, the driven rod rotates through the inner wall of the outer shell, and the driven rod is connected to the driving rod through a bevel gear set. The outer peripheral surface of the driven rod is located in the feed pipe and is fixedly sleeved with several stirring rods.

[0010] Furthermore, an atomizing nozzle is fixedly connected to the upper half of the outer wall of the feed pipe, and the atomizing nozzle is located above the middle section of the feed pipe. A connecting pipe is rotatably passed through one end of the corresponding rotating tube away from the output end of the water pump, and the end of the connecting tube away from the rotating tube is communicated with the atomizing nozzle.

[0011] Furthermore, the inner bottom wall and the two opposite inner side walls of the shell are fixedly connected with a filter screen, the filter screen is L-shaped, and the water pump input end is located in the area formed by the filter screen and the inner wall of the shell.

[0012] Furthermore, a semiconductor refrigeration plate is fixedly connected to the outer wall of the water pump input end, and the cold end of the semiconductor refrigeration plate extends into the water pump input end.

[0013] Furthermore, a second driving member is provided on one side of the shell, and the second driving member is used to drive the rotating tube to rotate.

[0014] In summary, the present invention has at least one of the following beneficial technical effects:

[0015] 1. This is a PE film blowing machine used for producing PE films. The water pump delivers low-temperature water from the rotating tube into the water channel, where it exchanges heat with the cooling roller. Simultaneously, the cooling roller exchanges heat with the PE film being blown, thereby cooling the PE film and preventing deformation during winding, thereby improving the quality of the PE film.

[0016] 2. In this PE film blowing machine, the first drive member rotates the stirring rod, allowing dust attached to PE particles in the middle section of the feed pipe to be discharged through the upper screen, thereby reducing the amount of dust entering the heating cylinder and improving the purity of the PE film.

[0017] 3. This is a film blowing machine for PE film production. After water passes through the waterway, it enters the atomizing nozzle through the circulation pipe and is discharged through the atomizing nozzle to form water mist. The water mist captures dust particles discharged from the screen above and makes them fall into the lower half of the shell to prevent dust from spreading to the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 is a three-dimensional diagram of a film blowing machine for producing PE film according to this embodiment;

[0020] Figure 2 This is a front cross-sectional view of a film blowing machine for producing PE film according to the present embodiment;

[0021] Figure 3 This is a partial side view of a film blowing machine for producing PE film according to this embodiment;

[0022] Figure 4 This is a front cross-sectional view of a cooling roller in a film blowing machine for producing PE film according to this embodiment;

[0023] Figure 5 It is a front cross-sectional view of a heating cylinder in a film blowing machine for producing PE film according to this embodiment.

[0024] In the figure, 1. outer shell; 2. film blowing part; 21. heating cylinder; 22. film blowing device; 23. driving rod; 24. spiral blade; 25. heating plate; 26. first driving member; 27. feeding pipe; 3. rotating pipe; 4. cooling roller; 5. water channel; 6. water pump; 7. screen; 8. driven rod; 9. stirring rod; 10. atomizing nozzle; 11. connecting pipe; 12. filter; 13. semiconductor refrigeration plate; 14. second driving member. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Example:

[0027] Reference Figures 1 to 5 The utility model discloses a film blowing machine for PE film production, including a shell 1 with an opening at the top, a film blowing part 2 is provided in the shell 1, rotating tubes 3 are rotatably penetrated by the opposite side walls of the shell 1, a cooling roller 4 is fixedly connected between the two rotating tubes 3, and the PE film contacts the upper half of the cooling roller 4 after film blowing, a spiral water channel 5 is opened inside the cooling roller 4, and the interiors of the two rotating tubes 3 are both connected to the water channel 5, a water pump 6 is fixedly connected to one side of the shell 1, and the input end of the water pump 6 extends to the lower half of the shell 1, and the output end of the water pump 6 is rotatably penetrated in one of the rotating tubes 3, water is added to the lower half of the shell 1, and the water level is lower than the height of the cooling roller 4, and the water does not contact the cooling roller 4.

[0028] In this embodiment, the film blowing unit 2 is used to melt PE granules and form a thin film. The cooling roller 4 is made of copper, which provides excellent thermal conductivity. The ends of the two rotating tubes 3 facing away from the cooling rollers 4 are sealed and extend outside the housing 1. The output end of the water pump 6 is rotatably connected to the corresponding rotating tube 3 and fixed through the side wall of the housing 1. Therefore, the output end of the water pump 6 does not hinder the rotation of the rotating tube 3 and the cooling roller 4.

[0029] When the water pump 6 is working, water is pumped from the lower half of the shell 1 and transported to the corresponding rotating tube 3. The water flows into the water channel 5 from the rotating tube 3, flows in the spiral water channel 5, and exchanges heat with the cooling roller 4. The cooling roller 4 exchanges heat with the PE film, thereby achieving cooling of the PE film.

[0030] In a further preferred embodiment of the present invention, Figure 2 and Figure 5 As shown, the film blowing part 2 includes a heating cylinder 21, the bottom of the heating cylinder 21 is fixedly connected to the inner bottom wall of the shell 1 through two brackets, a film blower 22 is provided on one side of the heating cylinder 21, and a driving rod 23 is horizontally rotatably connected inside the heating cylinder 21. The outer peripheral surface of the driving rod 23 is located inside the heating cylinder 21 and is fixedly sleeved with a spiral blade 24. A heating plate 25 is fixedly connected to the inner wall of the heating cylinder 21, and the driving rod 23 rotates through the inner wall of the shell 1, and a first driving member 26 is provided on one side of the shell 1. The first driving member 26 is used to drive the driving rod 23 to rotate, and a feeding pipe 27 is fixedly penetrated at the top of the heating cylinder 21.

[0031] In this embodiment, PE particles enter the heating cylinder 21 through the feed pipe 27. The heating plate 25 generates heat when in operation, heating the PE particles in the heating cylinder 21, causing the PE particles to become molten. The first driving member 26 drives the driving rod 23 to rotate, and the driving rod 23 drives the spiral blade 24 to rotate, thereby causing the molten PE material to move toward the film blower 22. The end of the heating cylinder 21 is connected to the film blower 22, and the molten material is pushed into the film blower 22. The film blower 22 is a prior art that can blow the molten material into a film, which will not be described in detail here. A bypass port is provided on the side of the outer shell 1 close to the cooling roller 4. The bypass port and the film blower 22 are both located below the cooling roller 4. Therefore, the film discharged from the film blower 22 will be placed on the upper half of the outer peripheral surface of the cooling roller 4, and then discharged from the outer shell 1 through the bypass port. Therefore, the cooling roller 4 will exchange heat with the film.

[0032] The end of the feed pipe 27 away from the heating cylinder 21 is fixedly connected to a feed hopper for facilitating the addition of PE particles. The water level in the housing 1 is lower than the height of the film blowing device 22 and the avoidance port.

[0033] The first driving member 26 is a first motor fixed to the side wall of the housing 1 . The output end of the first motor is connected to the driving rod 23 via a pair of gears. Therefore, the first motor drives the driving rod 23 to rotate when working.

[0034] In a further preferred embodiment of the present invention, Figure 2 and Figure 5 As shown, the middle section of the feed pipe 27 is tilted, and screens 7 are fixedly provided on the top and bottom of the middle section of the feed pipe 27 .

[0035] In this embodiment, when the PE particles move to the middle section of the feed pipe 27, impurities can be discharged through the lower screen 7, and dust can be discharged through the upper screen 7, thereby improving the purity of the PE particles and further improving the quality of the PE film.

[0036] In a further preferred embodiment of the present invention, Figure 2 and Figure 5 As shown, a driven rod 8 is rotatably connected in the middle section of the feed pipe 27, the driven rod 8 rotates through the inner wall of the outer shell 1, and the driven rod 8 is connected to the driving rod 23 through a bevel gear set. The outer peripheral surface of the driven rod 8 is located inside the feed pipe 27 and is fixedly sleeved with several stirring rods 9.

[0037] In this embodiment, when the driving rod 23 rotates, the driven rod 8 is driven to rotate through the bevel gear set, and the driven rod 8 drives the stirring rod 9 to rotate. The stirring rod 9 collides with the PE particles in the feed pipe 27, so that the dust attached to the PE particles can be fully diffused through the screen 7 and prevent the PE particles from being blocked in the feed pipe 27.

[0038] In a further preferred embodiment of the present invention, Figure 1 As shown, an atomizing nozzle 10 is fixedly connected to the upper half of the outer wall of the feed pipe 27. The atomizing nozzle 10 is located above the middle section of the feed pipe 27. A connecting pipe 11 is rotatably passed through the end of the corresponding rotating tube 3 away from the output end of the water pump 6. The end of the connecting pipe 11 away from the rotating tube 3 is communicated with the atomizing nozzle 10.

[0039] In this embodiment, the connecting pipe 11 is fixedly inserted through the side wall of the housing 1. Since the connecting pipe 11 is rotatably connected to the corresponding rotating pipe 3, the connecting pipe 11 does not hinder the rotation of the rotating pipe 3. When the water pump 6 is in operation, water flows through the water channel 5, enters the atomizing nozzle 10 from the connecting pipe 11, and is discharged as a water mist. The water mist is sprayed above the middle section of the feed pipe 27, carrying dust discharged from the screen 7, and then impacting the inner wall of the housing 1 before flowing down, causing the dust to enter the water in the lower half of the housing 1, thereby preventing the dust from dispersing into the external environment.

[0040] Furthermore, the pressure of the water mist discharged from the atomizing nozzle 10 is sufficient to carry the dust over the screen 7 and hit the inner wall of the housing 1, without falling directly on the top of the screen 7, preventing the water mist from passing through the screen 7 into the feed pipe 27.

[0041] In a further preferred embodiment of the present invention, Figure 2 As shown, the inner bottom wall and the two opposite inner side walls of the housing 1 are fixedly connected with a filter 12 . The filter 12 is L-shaped, and the input end of the water pump 6 is located in the area formed by the filter 12 and the inner wall of the housing 1 .

[0042] In this embodiment, the filter screen 12 is used to block the passage of impurities and dust, thereby preventing the water pump 6 from pumping out impurities and dust when the water pump 6 is working.

[0043] In a further preferred embodiment of the present invention, Figure 3 As shown, a semiconductor refrigeration plate 13 is fixedly connected to the outer wall of the input end of the water pump 6, and the cold end of the semiconductor refrigeration plate 13 extends into the input end of the water pump 6.

[0044] In this embodiment, the cold end of the semiconductor refrigeration plate 13 extends into the input end of the water pump 6, while the hot end is located outside the input end of the water pump 6. Therefore, when the semiconductor refrigeration plate 13 is working, it can cool the water flow in the input end of the water pump 6, further improving the cooling effect on the PE film.

[0045] In a further preferred embodiment of the present invention, Figure 1 As shown, a second driving member 14 is provided on one side of the housing 1 , and the second driving member 14 is used to drive the rotating tube 3 to rotate.

[0046] In this embodiment, the second driving member 14 is a second motor fixedly connected to the side wall of the outer shell 1. The output end of the second motor is rotatably connected to the corresponding rotating tube 3 through a pair of gears. Therefore, when the second motor is working, it can drive the two rotating tubes 3 and the cooling roller 4 to rotate, so that the outer peripheral surface of the cooling roller 4 is in contact with the PE film at all locations, thereby improving the cooling effect on the PE film.

[0047] During the film blowing process of the PE film, the first driving member 26, the second driving member 14, the heating plate 25, the water pump 6 and the semiconductor cooling sheet 13 work together, and PE particles are continuously added through the feed hopper.

[0048] The embodiments of this specific implementation method are all preferred embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A film blowing machine for producing PE film, comprising a housing (1) with an opening at the top, wherein a film blowing unit (2) is provided in the housing (1), and characterized in that: The two opposite side walls of the shell (1) are both rotatably penetrated by rotating tubes (3), a cooling roller (4) is fixedly connected between the two rotating tubes (3), the PE film contacts the upper half of the cooling roller (4) after film blowing, a spiral water channel (5) is opened inside the cooling roller (4), and the interiors of the two rotating tubes (3) are both connected to the water channel (5), a water pump (6) is fixedly connected to one side of the shell (1), the input end of the water pump (6) extends to the lower half of the shell (1), and the output end of the water pump (6) is rotatably penetrated in one of the rotating tubes (3), and water is added to the lower half of the shell (1).

2. The film blowing machine for producing PE film according to claim 1, characterized in that: The film blowing part (2) comprises a heating cylinder (21), the bottom of the heating cylinder (21) is fixedly connected to the inner bottom wall of the shell (1) through two brackets, a film blowing device (22) is provided on one side of the heating cylinder (21), a driving rod (23) is horizontally rotatably connected inside the heating cylinder (21), the outer peripheral surface of the driving rod (23) is located inside the heating cylinder (21) and is fixedly sleeved with a spiral blade (24), a heating plate (25) is fixedly connected to the inner wall of the heating cylinder (21), the driving rod (23) rotates through the inner wall of the shell (1), and a first driving member (26) is provided on one side of the shell (1), the first driving member (26) is used to drive the driving rod (23) to rotate, and a feeding pipe (27) is fixedly penetrated at the top of the heating cylinder (21).

3. The film blowing machine for producing PE film according to claim 2, characterized in that: The middle section of the feed pipe (27) is inclined, and the top and bottom of the middle section of the feed pipe (27) are fixedly penetrated with a screen (7).

4. The film blowing machine for producing PE film according to claim 3, characterized in that: A driven rod (8) is rotatably connected in the middle section of the feed pipe (27), and the driven rod (8) rotates through the inner wall of the shell (1). The driven rod (8) is connected to the driving rod (23) through a bevel gear set. The outer peripheral surface of the driven rod (8) is located in the feed pipe (27) and is fixedly sleeved with a plurality of stirring rods (9).

5. The film blowing machine for producing PE film according to claim 4, characterized in that: An atomizing nozzle (10) is fixedly connected to the upper half of the outer wall of the feed pipe (27). The atomizing nozzle (10) is located above the middle section of the feed pipe (27). A connecting pipe (11) is rotatably passed through one end of the corresponding rotating pipe (3) away from the output end of the water pump (6). The end of the connecting pipe (11) away from the rotating pipe (3) is in communication with the atomizing nozzle (10).

6. The film blowing machine for producing PE film according to claim 5, characterized in that: The inner bottom wall and two opposite inner side walls of the housing (1) are fixedly connected with a filter screen (12), the filter screen (12) is L-shaped, and the input end of the water pump (6) is located in the area formed by the filter screen (12) and the inner wall of the housing (1).

7. A film blowing machine for producing PE film according to claim 6, characterized in that: A semiconductor refrigeration plate (13) is fixedly connected to the outer wall of the water pump (6) input end, and the cold end of the semiconductor refrigeration plate (13) extends into the input end of the water pump (6).

8. The film blowing machine for producing PE film according to claim 7, characterized in that: A second driving member (14) is provided on one side of the housing (1), and the second driving member (14) is used to drive the rotating tube (3) to rotate.

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