Anti-aging high-temperature-resistant PE film preparation device

Abstract

The utility model relates to an anti-aging high-temperature-resistant PE (polyethylene) film preparation device, which belongs to the field of PE film preparation and comprises a support, an extruder fixedly connected to the inner bottom wall of the support and a support plate fixedly connected to the inner right side wall of the support, and a mixing structure used for fully mixing PE film materials is arranged on the upper surface of the support plate. The mixing structure comprises four supporting rods fixedly connected to the upper surface of the supporting plate, a mixing bin fixedly connected among the top ends of the four supporting rods, a feeding assembly arranged at the top of the mixing bin, a first servo motor fixedly connected to the left side of the mixing bin, and a first stirring rod fixedly connected to an output shaft of the first servo motor; the first bevel gear is fixedly connected to the right end of the first stirring rod; the second bevel gear is meshed with the bottom of the first bevel gear. According to the preparation device for the anti-aging high-temperature-resistant PE film, by optimizing the material ratio and the structural design, the PE film has higher mechanical strength while keeping excellent processing performance.

Description

Technical Field

[0001] The utility model relates to a device for preparing anti-aging and high-temperature resistant PE films, belonging to the field of PE film preparation Background Art

[0002] In the current field of plastic film technology, especially in the production and application of polyethylene (PE) films, although PE films are widely used in many industries such as medicine, food, chemical industry, and electronics due to their excellent low-temperature resistance, chemical stability, and good processability, they still face many challenges and deficiencies in the actual application process

[0003] Firstly, the insufficient high-temperature resistance is a major pain point of current PE films. Ordinary PE films on the market are prone to softening, deformation, and even melting in high-temperature environments (especially when the temperature exceeds 80°C), which greatly limits their application in fields that require high-temperature environments (such as high-temperature cooking packaging, industrial heat treatment covering, etc.). When the temperature exceeds the tolerance limit of the PE film, it will not only affect its physical properties but also may lead to packaging failure and damage to the internal items. Secondly, the poor anti-aging performance is also a common problem of PE films. When exposed to sunlight, ultraviolet light and other light sources for a long time, the PE film will undergo photo-aging, manifested as yellowing of color, increased brittleness, and decreased mechanical properties, seriously affecting its service life and appearance quality. This not only increases the use cost but also limits the application of PE films in long-term outdoor use scenarios Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a device for preparing anti-aging and high-temperature resistant PE films, which has the advantages of improving the effect of raw material ratio, and further strengthening the high-temperature resistance and anti-aging performance of PE films

[0005] To sum up, the utility model provides the following technical solution: A device for preparing anti-aging and high-temperature resistant PE films, including a bracket, an extruder fixedly connected to the inner bottom wall of the bracket, and a support plate fixedly connected to the right inner wall of the bracket. The upper surface of the support plate is provided with a mixing structure for enabling the PE film materials to be more fully mixed

[0006] The hybrid structure includes four support rods fixedly connected to the upper surface of the support plate, a hybrid bin fixedly connected between the tops of the four support rods, a feeding assembly arranged on the top of the hybrid bin, a first servo motor fixedly connected to the left side of the hybrid bin, a first stirring rod fixedly connected to the output shaft of the first servo motor, a first bevel gear fixedly connected to the right end of the first stirring rod, a second bevel gear meshing with the bottom of the first bevel gear, a second stirring rod fixedly connected to the inner center of the second bevel gear, a third bevel gear meshing with the right side of the second bevel gear, a third stirring rod fixedly connected to the inner center of the third bevel gear, a first stirring paddle fixedly connected to the outside of the first stirring rod, a second stirring paddle fixedly connected to the outside of the second stirring rod, and a third stirring paddle fixedly connected to the outside of the third stirring rod;

[0007] An unloading assembly for smoother unloading is provided at the bottom of the hybrid bin.

[0008] Furthermore, the feeding assembly includes two feeding pipes fixedly connected to the upper surface of the hybrid bin, a feeding valve fixedly connected to the top of the feeding pipe, a flow meter fixedly connected to the feeding end of the feeding valve, a connecting pipe fixedly connected to the feeding end of the flow meter, and a feeding hopper fixedly connected to the top of the connecting pipe.

[0009] The beneficial effect of adopting the above further solution is that the feeding assembly ensures that materials enter the hybrid bin according to a predetermined ratio and rate.

[0010] Furthermore, the two feeding pipes are respectively fixedly connected to the left side and the right side of the upper surface of the hybrid bin, and the feeding pipes are communicated with the corresponding feeding ports of the hybrid bin.

[0011] The beneficial effect of adopting the above further solution is that the two materials can enter the hybrid bin according to a predetermined ratio.

[0012] Furthermore, a protective shell is fixedly connected between the inner front side wall and the inner rear side wall of the hybrid bin. The left end of the first stirring rod sequentially penetrates the left side wall of the hybrid bin, the mounting opening of the first stirring paddle, and the left side wall of the protective shell and extends to the inner center of the first bevel gear to be fixedly connected with the first bevel gear. The bottom end of the second stirring rod is rotatably connected to the inner bottom wall of the protective shell, and the top end of the second stirring rod sequentially penetrates the center of the second bevel gear and the inner top wall of the protective shell and extends to the inner side of the mounting opening of the second stirring paddle to be fixedly connected with the second stirring paddle. The right end of the third stirring rod sequentially penetrates the inner right side wall of the protective shell and the mounting opening of the third stirring paddle and is rotatably connected to the inner right side wall of the hybrid bin.

[0013] The beneficial effect of adopting the above further solution is that the protective shell prevents materials from obstructing the meshing between the first bevel gear, the second bevel gear, and the third bevel gear.

[0014] Further, the number of the first stirring paddles is three, and the three first stirring paddles are arranged at equal intervals in the left-right direction. The number of the second stirring paddles is three, and the three second stirring paddles are arranged at equal intervals in the up-down direction. The number of the third stirring paddles is three, and the three third stirring paddles are arranged at equal intervals in the left-right direction.

[0015] The beneficial effect of adopting the above further scheme is: to improve the stirring effect through a multi-dimensional stirring flow field and uniform stirring force.

[0016] Further, the discharging assembly includes a discharging valve fixedly connected to the bottom of the mixing bin, a discharging pipe fixedly connected to the discharging end of the discharging valve, a dispersing box fixedly connected to the bottom end of the discharging pipe, a second servo motor fixedly connected to the left side of the dispersing box, a rotating rod fixedly connected to the output shaft of the second servo motor, and three dispersing paddles fixedly connected to the outer side of the rotating rod.

[0017] The beneficial effect of adopting the above further scheme is: the dispersing assembly can effectively disperse the lumps or aggregates that may be formed during the mixing process, making the material more uniform and loose, which helps to reduce the resistance of the material during the flowing process and improve the discharging smoothness.

[0018] Further, the right end of the rotating rod sequentially penetrates through the left side wall of the dispersing box and the mounting opening of the dispersing paddle and is rotatably connected to the inner right side wall of the dispersing box.

[0019] The beneficial effect of adopting the above further scheme is: the inner right side wall of the dispersing box supports the rotating rod, so that the rotation of the rotating rod is more stable.

[0020] Further, the bottom of the dispersing box is fixedly connected to the feeding end of the extruder, and the discharging port at the bottom of the dispersing box is communicated with the feeding end of the extruder.

[0021] The beneficial effect of adopting the above further scheme is: the mixed material can enter the extruder to start the next process.

[0022] Compared with the prior art, the present utility model has the following beneficial effects:

[0023] By optimizing the material ratio and structural design, the PE film not only maintains excellent processing performance, but also has higher mechanical strength and a wider application range, thereby enhancing the high-temperature resistance and anti-aging performance of the PE film. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is Figure 1 a partial enlarged schematic diagram of part A in

[0026] Figure 3 It is a three-dimensional view of the bracket and the support plate in the structure of the present utility model;

[0027] Figure 4 It is a front view schematic diagram of the present utility model.

[0028] Explanation of reference numerals:

[0029] 1. Bracket; 2. Extruder; 3. Support plate; 4. Support rod; 5. Mixing bin; 6. First servo motor; 7. First stirring rod; 701. First stirring paddle; 8. First bevel gear; 9. Second bevel gear; 10. Second stirring rod; 1001. Second stirring paddle; 11. Third bevel gear; 12. Third stirring rod; 1201. Third stirring paddle; 13. Feeding pipe; 14. Feed valve; 15. Flowmeter; 16. Connecting pipe; 17. Feeding hopper; 18. Protective shell; 19. Discharge valve; 20. Discharge pipe; 21. Dispersing box; 22. Second servo motor; 23. Rotating rod; 24. Dispersing paddle. Detailed implementation manners

[0030] Please refer to Figures 1-4 , the anti-aging and high-temperature resistant PE film preparation device, which includes a bracket 1, an extruder 2 fixedly connected to the inner bottom wall of the bracket 1, and a support plate 3 fixedly connected to the right inner wall of the bracket 1. A mixing structure for more fully mixing the PE film material is provided on the upper surface of the support plate 3.

[0031] As Figure 1 shown, the mixing structure includes four support rods 4 fixedly connected to the upper surface of the support plate 3, a mixing bin 5 fixedly connected between the tops of the four support rods 4, a feeding assembly arranged on the top of the mixing bin 5, a first servo motor 6 fixedly connected to the left side of the mixing bin 5, a first stirring rod 7 fixedly connected to the output shaft of the first servo motor 6, a first bevel gear 8 fixedly connected to the right end of the first stirring rod 7, a second bevel gear 9 meshing with the bottom of the first bevel gear 8, a second stirring rod 10 fixedly connected to the inner center of the second bevel gear 9, a third bevel gear 11 meshing with the right side of the second bevel gear 9, a third stirring rod 12 fixedly connected to the inner center of the third bevel gear 11, a first stirring paddle 701 fixedly connected to the outside of the first stirring rod 7, a second stirring paddle 1001 fixedly connected to the outside of the second stirring rod 10, and a third stirring paddle 1201 fixedly connected to the outside of the third stirring rod 12.

[0032] A discharge assembly for smoother discharge is provided at the bottom of the mixing bin 5.

[0033] It should be noted that the feeding assembly includes two feeding pipes 13 fixedly connected to the upper surface of the mixing bin 5, a feeding valve 14 fixedly connected to the top end of the feeding pipe 13, a flow meter 15 fixedly connected to the feeding end of the feeding valve 14, a connecting pipe 16 fixedly connected to the feeding end of the flow meter 15, and a feeding hopper 17 fixedly connected to the top end of the connecting pipe 16. Through the feeding assembly, materials are ensured to enter the mixing bin 5 according to a predetermined ratio and rate.

[0034] The two feeding pipes 13 are respectively fixedly connected to the left side of the upper surface and the right side of the upper surface of the mixing bin 5, and the feeding pipes 13 are communicated with the corresponding feeding ports of the mixing bin 5, so that two kinds of materials can enter the mixing bin 5 according to a predetermined ratio.

[0035] A protective shell 18 is fixedly connected between the inner front side wall and the inner rear side wall of the mixing bin 5. The left end of the first stirring rod 7 sequentially penetrates through the left side wall of the mixing bin 5, the mounting opening of the first stirring paddle 701, and the left side wall of the protective shell 18 and extends to the inside of the center of the first bevel gear 8 and is fixedly connected to the first bevel gear 8. The bottom end of the second stirring rod 10 is rotatably connected to the inner bottom wall of the protective shell 18, and the top end of the second stirring rod 10 sequentially penetrates through the center of the second bevel gear 9 and the inner top wall of the protective shell 18 and extends to the inside of the mounting opening of the second stirring paddle 1001 and is fixedly connected to the second stirring paddle 1001. The right end of the third stirring rod 12 sequentially penetrates through the inner right side wall of the protective shell 18 and the mounting opening of the third stirring paddle 1201 and is rotatably connected to the inner right side wall of the mixing bin 5. The protective shell 18 prevents materials from hindering the meshing between the first bevel gear 8, the second bevel gear 9, and the third bevel gear 11.

[0036] The number of the first stirring paddles 701 is three, and the three first stirring paddles 701 are arranged at equal intervals in the left - right direction. The number of the second stirring paddles 1001 is three, and the three second stirring paddles 1001 are arranged at equal intervals in the up - down direction. The number of the third stirring paddles 1201 is three, and the three third stirring paddles 1201 are arranged at equal intervals in the left - right direction. The stirring effect is improved through a multi - dimensional stirring flow field and uniform stirring force.

[0037] The discharging assembly includes a discharging valve 19 fixedly connected to the bottom of the mixing bin 5, a discharging pipe 20 fixedly connected to the discharging end of the discharging valve 19, a dispersing box 21 fixedly connected to the bottom end of the discharging pipe 20, a second servo - motor 22 fixedly connected to the left side of the dispersing box 21, a rotating rod 23 fixedly connected to the output shaft of the second servo - motor 22, and three dispersing paddles 24 fixedly connected to the outer side of the rotating rod 23. The dispersing assembly can effectively disperse the lumps or aggregates that may be formed during the mixing process, making the materials more uniform and loose. This helps to reduce the resistance of the materials during the flowing process and improve the discharging smoothness.

[0038] The right end of the rotating rod 23 sequentially penetrates through the left side wall of the dispersion box 21 and the mounting opening of the dispersion paddle 24 and is rotatably connected to the inner right side wall of the dispersion box 21. The inner right side wall of the dispersion box 21 supports the rotating rod 23, thereby making the rotation of the rotating rod 23 more stable.

[0039] The bottom of the dispersion box 21 is fixedly connected to the feeding end of the extruder 2, and the discharge port at the bottom of the dispersion box 21 communicates with the feeding end of the extruder 2, enabling the mixed material to enter the extruder 2 to start the next process.

[0040] In addition, a calender and a coater are also required in the subsequent processing.

[0041] The working principle of the above embodiment is as follows:

[0042] First, through the flowmeter 15 and the feed valve 14 of the feeding component, the feeding ratio and rate of various raw materials are accurately controlled. The raw materials enter the connecting pipe 16 from the feeding hopper 17, then pass through the flowmeter 15 and the feed valve 14, and finally enter the left and right sides of the mixing chamber 5 through the two feeding pipes 13 respectively, ensuring that the raw materials are mixed in a predetermined ratio.

[0043] Next, start the first servo motor 6 to drive the first stirring rod 7 to rotate. The first stirring paddle 701 on the first stirring rod 7 starts to work to preliminarily stir the raw materials in the mixing chamber 5. The first stirring rod 7 drives the second stirring rod 10 to rotate through the meshing of the first bevel gear 8 and the second bevel gear 9. The second stirring paddle 1001 stirs in the up and down direction to form a vertical stirring flow. At the same time, the meshing of the second bevel gear 9 and the third bevel gear 11 drives the third stirring rod 12 to rotate. The third stirring paddle 1201 stirs in the left and right direction to complement the first stirring paddle 701, constructing a multi-dimensional stirring flow field to ensure that the raw materials are fully and evenly mixed in the mixing chamber 5 and improve the mixing effect.

[0044] The uniformly mixed raw materials enter the dispersion box 21 through the discharge valve 19 and the discharge pipe 20 at the bottom of the mixing chamber 5. Start the second servo motor 22 to drive the rotating rod 23 to rotate. The three dispersion paddles 24 on the outer side of the rotating rod 23 rotate at high speed accordingly. The rotation of the dispersion paddles 24 effectively breaks up the possible lumps or aggregates, making the material more uniformly loose and reducing the flow resistance.

[0045] The scattered materials enter the extruder 2 through the discharge port at the bottom of the scattering box 21. Inside the extruder 2, the materials undergo a high-temperature melting and plasticizing process to form a continuous molten material. The screw and barrel of the extruder 2 work together to further mix and homogenize the molten material. After the molten material is extruded from the die head of the extruder 2, it enters the calender. In the calender, through the extrusion and stretching of multiple rollers, the molten material is formed into a film with a certain thickness and width, and the arrangement of its molecular chains is improved, enhancing the density and mechanical strength of the film. After that, anti-aging agents and light stabilizers are coated on the surface of the film in the form of a coating to improve the high-temperature resistance and anti-aging performance of the film.

Claims

1. An anti-aging and high temperature resistant PE film preparation device, comprising a support (1), an extruder (2) fixedly connected to the inner bottom wall of the support (1), and a support plate (3) fixedly connected to the inner right side wall of the support (1), characterized in that: The upper surface of the support plate (3) is provided with a mixing structure for enabling the PE film material to be more fully mixed; The mixing structure comprises four support rods (4) fixedly connected to the upper surface of the support plate (3), a mixing bin (5) fixedly connected between the top ends of the four support rods (4), a feeding assembly arranged at the top of the mixing bin (5), a first servo motor (6) fixedly connected to the left side of the mixing bin (5), a first stirring rod (7) fixedly connected to the output shaft of the first servo motor (6), a first bevel gear (8) fixedly connected to the right end of the first stirring rod (7), a second bevel gear (9) meshed with the bottom of the first bevel gear (8), a second stirring rod (10) fixedly connected to the inner side of the center of the second bevel gear (9), a third bevel gear (11) meshed with the right side of the second bevel gear (9), a third stirring rod (12) fixedly connected to the inner side of the center of the third bevel gear (11), a first stirring paddle (701) fixedly connected to the outer side of the first stirring rod (7), a second stirring paddle (1001) fixedly connected to the outer side of the second stirring rod (10), and a third stirring paddle (1201) fixedly connected to the outer side of the third stirring rod (12); The bottom of the mixing bin (5) is provided with a discharge component that enables smoother discharge of materials.

2. The device for preparing the anti-aging and high temperature resistant PE film according to claim 1, characterized in that: The feeding assembly comprises two feeding pipes (13) fixedly connected to the upper surface of the mixing bin (5), a feeding valve (14) fixedly connected to the top of the feeding pipes (13), a flow meter (15) fixedly connected to the feeding end of the feeding valve (14), a connecting pipe (16) fixedly connected to the feeding end of the flow meter (15), and a feeding hopper (17) fixedly connected to the top of the connecting pipe (16).

3. The device for preparing the anti-aging and high temperature resistant PE film according to claim 2, characterized in that: The two feeding pipes (13) are respectively fixedly connected to the left side and the right side of the upper surface of the mixing bin (5), and the feeding pipes (13) are connected to the corresponding feeding ports of the mixing bin (5).

4. The device for preparing the anti-aging and high temperature resistant PE film according to claim 1, characterized in that: A protective shell (18) is fixedly connected between the inner front side wall and the inner rear side wall of the mixing bin (5); the left end of the first stirring rod (7) sequentially penetrates the left side wall of the mixing bin (5), the mounting opening of the first stirring paddle (701) and the left side wall of the protective shell (18) and extends to the inner side of the center of the first bevel gear (8) and is fixedly connected to the first bevel gear (8); the bottom end of the second stirring rod (10) is rotatably connected to the inner bottom wall of the protective shell (18); the top end of the second stirring rod (10) sequentially penetrates the center of the second bevel gear (9) and the inner top wall of the protective shell (18) and extends to the inner side of the mounting opening of the second stirring paddle (1001) and is fixedly connected to the second stirring paddle (1001); the right end of the third stirring rod (12) sequentially penetrates the inner right side wall of the protective shell (18) and the mounting opening of the third stirring paddle (1201) and is rotatably connected to the inner right side wall of the mixing bin (5).

5. The device for preparing the anti-aging and high temperature resistant PE film according to claim 1, characterized in that: The number of the first stirring paddles (701) is three, and the three first stirring paddles (701) are arranged equidistantly in the left-right direction; the number of the second stirring paddles (1001) is three, and the three second stirring paddles (1001) are arranged equidistantly in the up-down direction; the number of the third stirring paddles (1201) is three, and the three third stirring paddles (1201) are arranged equidistantly in the left-right direction.

6. The device for preparing the anti-aging and high temperature resistant PE film according to claim 1, characterized in that: The discharging assembly comprises a discharging valve (19) fixedly connected to the bottom of the mixing bin (5), a discharging pipe (20) fixedly connected to the discharging end of the discharging valve (19), a breaking box (21) fixedly connected to the bottom end of the discharging pipe (20), a second servo motor (22) fixedly connected to the left side of the breaking box (21), a rotating rod (23) fixedly connected to the output shaft of the second servo motor (22), and three breaking paddles (24) fixedly connected to the outside of the rotating rod (23).

7. The device for preparing the anti-aging and high temperature resistant PE film according to claim 6, characterized in that: The right end of the rotating rod (23) sequentially passes through the left side wall of the scattering box (21) and the installation opening of the scattering paddle (24) and is rotatably connected to the inner right side wall of the scattering box (21).

8. The device for preparing the anti-aging and high temperature resistant PE film according to claim 6, characterized in that: The bottom of the scattering box (21) is fixedly connected to the feed end of the extruder (2), and the discharge port at the bottom of the scattering box (21) is in communication with the feed end of the extruder (2).

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