High-temperature-resistant light and thin polypropylene cup body and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant light and thin polypropylene cup body and a preparation method thereof, and the high-temperature-resistant light and thin polypropylene cup body comprises 50-80 parts of polypropylene, 2-10 parts of an additive, 1-4 parts of color master batch and 10-15 parts of a polypropylene copolymer, the additives comprise a butylated hydroxytoluene antioxidant, a UV anti-ultraviolet agent, a calcium-zinc heat stabilizer, a polyethylene wax lubricant and a nano silicon dioxide filler. When a polypropylene cup body is prepared, materials are extruded through the extrusion die, meanwhile, the extruded materials are continuously scraped away through the cleaning mechanism, so that the extruded materials are effectively prevented from being accumulated on the side face of the extrusion die, the extrusion quality is guaranteed, meanwhile, the extrusion die is conveniently disassembled and assembled through the fixing assembly, and the production efficiency is improved. And the extrusion die is convenient to maintain or replace, so that the practicability of the extrusion die is improved.

Description

Technical Field

[0001] The invention relates to the technical field of polypropylene cup body production, and in particular to a high-temperature resistant thin polypropylene cup body and a preparation method thereof. Background Art

[0002] Traditional cup materials vary, but polypropylene (PP) has been widely used in the manufacturing field due to its good physical properties, chemical stability and processability. However, as consumers' requirements for cup quality continue to increase, traditional polypropylene cups have gradually shown their shortcomings in terms of high temperature resistance and thin design.

[0003] First of all, high temperature resistance is one of the important indicators for evaluating the quality of the cup body. Traditional polypropylene cup bodies are prone to deformation or produce harmful substances in high temperature environments, posing a potential threat to consumers' health. Therefore, how to improve the high temperature resistance of polypropylene cup bodies has become an urgent problem to be solved in the industry.

[0004] Secondly, thin and light design is another important trend of modern products. Thin and light cups are not only easy to carry and use, but also reduce material consumption and are in line with the concept of environmental protection. However, traditional polypropylene cups are difficult to achieve thin and light design due to the limitations of material properties and preparation methods.

[0005] In addition, an extruder is required in the preparation process of the polypropylene cup body. The Chinese patent with announcement number CN220095157U discloses an EPDM rubber pellet production extruder, whose structure includes a temperature control box, a transmission heat dissipation cabinet, a servo motor, a support frame, a pellet extrusion hole, a rubber pellet extrusion mechanism, a feed box, a feeding funnel, a protective frame, a drive motor box, and a fixed base. The upper end of the temperature control box is fitted with the lower end of the drive motor box, the lower end of the temperature control box is connected to the upper end of the fixed base, the lower end of the support frame is welded to the upper end of the fixed base, the right end of the transmission heat dissipation cabinet is connected to the left end of the drive motor box, the left end of the rubber pellet extrusion mechanism and the pellet extrusion hole are an integrated mechanism, the upper right end of the rubber pellet extrusion mechanism is welded to the lower end of the feed box, the right end of the rubber pellet extrusion mechanism is connected to the left end of the transmission heat dissipation cabinet, the lower end of the rubber pellet extrusion mechanism is fitted with the upper end of the support frame, and the lower end of the protective frame is connected to the upper end of the drive motor box.

[0006] Although the above technical solution solves the corresponding technical problem, the extruder in the above technology is not convenient for cutting and cleaning the extruded raw materials, and the materials extruded from the extrusion hole are easily adhered together due to the high heat during extrusion, resulting in uneven product size.

[0007] To this end, a high temperature resistant thin polypropylene cup body and a preparation method thereof are proposed. Summary of the invention

[0008] The purpose of the present invention is to provide a high-temperature resistant, light and thin polypropylene cup body and a preparation method thereof, which not only improves the overall performance of the material, but also realizes a light and thin design of the cup body, which not only reduces the weight, but also is easy to carry and use, and meets the dual needs of modern people for portability and aesthetics. While the material is extruded through the extrusion die, a cleaning mechanism is provided to continuously scrape the extruded material away, thereby effectively avoiding the accumulation of the extruded material on the side of the extrusion die, ensuring the extrusion quality, and at the same time, the fixed component is provided to facilitate the disassembly and assembly of the extrusion die, and the maintenance or replacement of the extrusion die.

[0009] In order to achieve the above object, the present invention adopts the following technical solution:

[0010] A high temperature resistant light and thin polypropylene cup body comprises the following components by weight: 50-80 parts of polypropylene, 2-10 parts of additives, 1-4 parts of color masterbatch and 10-15 parts of polypropylene copolymer.

[0011] As a further embodiment of the present invention, the additives include butylated hydroxytoluene antioxidant, UV anti-ultraviolet agent, calcium zinc heat stabilizer, polyethylene wax lubricant and nano-silicon dioxide filler.

[0012] The present invention also provides a method for preparing the cup body, comprising the following steps:

[0013] S1. Put polypropylene, additives, color masterbatch and polypropylene copolymer in parts by weight into a hot melt machine in sequence, control the temperature of the hot melt machine at 200-250 degrees Celsius, and control the hot melt time at 30-50 minutes until the raw materials are completely melted and evenly mixed to form a polypropylene mixture;

[0014] S2, putting the polypropylene mixture formed in S1 into an extruder, extruding the polypropylene mixture through the extruder, and cooling and forming the polypropylene mixture, thereby obtaining polypropylene mixed particles;

[0015] S3, putting the polypropylene mixed particles obtained in S2 into an injection mold, injecting the molten polypropylene into the mold after passing through the heating system of the injection mold, and finally taking it out after cooling and solidification to obtain a polypropylene cup body blank;

[0016] S4, trimming the polypropylene cup body blank obtained in S3, removing excess burrs and flashes, and cleaning to remove oil stains and impurities in the production process, so as to obtain a polypropylene cup body finished product.

[0017] The cup body preparation equipment comprises the above-mentioned extruder, which comprises an extruder body, a spiral extrusion roller for raw material transportation is arranged inside the extruder body, a detachable extrusion die is arranged at the discharge port of the extruder body, fixing components for fixing the extrusion die are installed at the top and bottom of the extruder body and at the positions corresponding to the extrusion die, and a cleaning mechanism for cleaning the side of the extrusion die is installed on the side of the extrusion die.

[0018] As a further solution of the preparation equipment of the present invention, an extrusion motor for driving the spiral extrusion roller is installed on the side of the extruder body and at the position corresponding to the spiral extrusion roller, and the output shaft of the extrusion motor is fixedly connected to the end of the spiral extrusion roller.

[0019] As a further solution of the preparation device of the present invention, a plurality of extrusion holes arranged at equal distances are provided on the side of the extrusion die.

[0020] As a further solution of the preparation device of the present invention, a sealing ring matching the extrusion die is arranged on the side of the extruder body and at the position corresponding to the extrusion die.

[0021] As a further scheme of the preparation equipment of the present invention, the fixing component includes a fixing seat fixedly connected to the extruder body, a connecting block is rotatably installed on the fixing seat through a connecting shaft, a threaded clamping rod is fixedly connected to the side of the connecting block, a clamping seat used in conjunction with the threaded clamping rod is fixedly connected to the side of the extrusion mold and corresponding to the position of the threaded clamping rod, a fixing nut is threadedly connected to the threaded clamping rod, and a wrench handle is fixedly connected to the end of the threaded clamping rod away from the connecting block.

[0022] As a further solution of the preparation equipment of the present invention, the cleaning mechanism includes a mounting frame fixedly connected to the side of the extrusion die, two symmetrically arranged electric cylinders are fixedly connected to the side of the mounting frame, an adjustment seat is fixedly connected to the output end of the electric cylinder, and a cleaning component for cleaning the side of the extrusion die is installed on the adjustment seat.

[0023] As a further solution of the preparation equipment of the present invention, the cleaning component includes a servo motor fixedly connected to the adjustment seat, a scraper is fixedly connected to the output shaft of the servo motor, and a scraper is fixedly connected to the side of the scraper.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention adopts polypropylene basic materials and polypropylene copolymers, combined with an efficient additive formula (including butylated hydroxytoluene antioxidant, UV anti-ultraviolet agent, calcium zinc heat stabilizer, etc.), so that the cup body can withstand higher temperatures and is suitable for a variety of hot drink environments, ensuring safety and comfort in use. By optimizing the ratio and preparation method of the polypropylene mixture, especially the addition of the polypropylene copolymer, not only the overall performance of the material is improved, but also a lightweight design of the cup body is achieved, which not only reduces the weight, but also is easy to carry and use, meeting the dual needs of portability and aesthetics.

[0026] The preparation process includes hot melting, extrusion, injection molding, trimming and cleaning, and each link is precisely controlled to ensure the full mixing and uniform distribution of raw materials, as well as the quality and stability of the product. In particular, the precise control of the temperature of the hot melt machine and the heating system of the injection mold enable the polypropylene material to be fully melted and evenly injected into the mold, thus obtaining high-quality cup body blanks.

[0027] The selected additives are all environmentally friendly materials. For example, nano-silicon dioxide fillers not only improve the strength and wear resistance of the material, but also have certain antibacterial properties, ensuring the hygiene and health of the cup body.

[0028] By adding color masterbatch, the color and appearance of the cup body can be easily adjusted to meet the personalized needs of different consumers. At the same time, the surface of the cup body after trimming and cleaning is smooth and flawless, which improves the overall quality and beauty of the product.

[0029] While the material is extruded through the extrusion die, a cleaning mechanism is provided to continuously scrape the extruded material away, thereby effectively preventing the extruded material from accumulating on the side of the extrusion die, thereby ensuring the extrusion quality. At the same time, a fixed component is provided to facilitate the disassembly and assembly of the extrusion die, and to facilitate the maintenance or replacement of the extrusion die, thereby improving the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A flow chart of a preparation method according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the structure of the device according to the embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of a top cross-sectional structure of a device according to an embodiment of the present invention;

[0034] Figure 4 It is a structural schematic diagram of an extrusion die in an apparatus according to an embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the fixed component in the device of the embodiment of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the cleaning mechanism in the device of an embodiment of the present invention.

[0037] Reference numerals:

[0038] 1. Extrusion machine body;

[0039] 101, extrusion motor; 1011, spiral extrusion roller;

[0040] 102, extrusion die; 1021, extrusion hole; 1022, sealing ring;

[0041] 103, fixing assembly; 1031, fixing seat; 1032, connecting rotating block; 1033, threaded clamping rod; 10331, clamping seat; 1034, fixing nut; 1035, turning handle;

[0042] 104. cleaning mechanism; 1041. mounting frame; 1042. electric cylinder; 1043. adjusting seat; 1044. cleaning assembly;

[0043] 10441. servo motor; 10442. scraper; 10443. scraper. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the embodiments of the present invention.

[0046] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0047] See also Figure 1 As shown, a high temperature resistant and thin polypropylene cup body according to an embodiment of the present invention comprises the following components by weight: 50 to 80 parts of polypropylene, 2 to 10 parts of additives, 1 to 4 parts of color masterbatch and 10 to 15 parts of polypropylene copolymer.

[0048] The additives include butylated hydroxytoluene antioxidant, UV anti-ultraviolet agent, calcium zinc heat stabilizer, polyethylene wax lubricant and nano-silica filler.

[0049] A method for preparing a high temperature resistant thin polypropylene cup according to an embodiment of the present invention comprises the following steps:

[0050] S1. Put the above-mentioned polypropylene, additives, color masterbatch and polypropylene copolymer in parts by weight into a hot melt machine in sequence, control the temperature of the hot melt machine at 200-250 degrees Celsius, and control the hot melt time at 30-50 minutes until the raw materials are completely melted and evenly mixed to form a polypropylene mixture;

[0051] S2, putting the polypropylene mixture formed in S1 into an extruder, extruding the polypropylene mixture through the extruder, and cooling and forming the polypropylene mixture, thereby obtaining polypropylene mixed particles;

[0052] S3, putting the polypropylene mixed particles obtained in S2 into an injection mold, injecting the molten polypropylene into the mold after passing through the heating system of the injection mold, and finally taking it out after cooling and solidification to obtain a polypropylene cup body blank;

[0053] S4, trimming the polypropylene cup body blank obtained in S3, removing excess burrs and flashes to ensure a smooth surface, and at the same time, removing oil stains and impurities in the production process by cleaning, thereby obtaining a polypropylene cup body finished product;

[0054] The high temperature resistant and thin polypropylene cup body and the preparation method thereof provided by the embodiments of the present invention have excellent high temperature resistance: through the selection of polypropylene base materials and polypropylene copolymers, combined with an efficient additive formula, the cup body can withstand higher temperatures and is suitable for a variety of hot drink environments, ensuring safety and comfort of use.

[0055] Lightweight and thin: By optimizing the ratio and preparation method of polypropylene mixture, especially the addition of polypropylene copolymer, not only the overall performance of the material is improved, but also the light and thin design of the cup body is realized, which not only reduces the weight but also makes it easy to carry and use, meeting the dual needs of modern people for portability and aesthetics.

[0056] Efficient and stable: The preparation process includes hot melt, extrusion, injection molding, trimming and cleaning. Each link is precisely controlled to ensure the full mixing and uniform distribution of raw materials, as well as the quality and stability of the product. In particular, the precise control of the temperature of the hot melt machine and the heating system of the injection mold enable the polypropylene material to be fully melted and evenly injected into the mold, thus obtaining high-quality cup body blanks.

[0057] Environmental protection and health: The selected additives are all environmentally friendly materials, such as nano-silicon dioxide fillers, which not only improve the strength and wear resistance of the material, but also have certain antibacterial properties, ensuring the hygiene and health of the cup body. At the same time, less waste and pollutants are generated during the preparation process, which conforms to the modern environmental protection concept.

[0058] Excellent product appearance and performance: By adding color masterbatch, the color and appearance of the cup can be easily adjusted to meet the personalized needs of different consumers. At the same time, the surface of the cup after trimming and cleaning is smooth and flawless, which improves the overall quality and beauty of the product.

[0059] In summary, the high temperature resistant thin polypropylene cup body and the preparation method thereof according to the embodiment of the present invention have significant technical advantages and market competitiveness, and can meet the requirements of high quality, high safety and high convenience of the product.

[0060] See also Figure 2-Figure 6 As shown, an embodiment of the present invention is a preparation device for a high-temperature resistant and thin polypropylene cup body, including an extruder, which includes an extruder body 1, the interior of the extruder body 1 is provided with a spiral extrusion roller 1011 for raw material transportation, the discharge port of the extruder body 1 is provided with a detachable extrusion die 102, the top and bottom of the extruder body 1 and the position corresponding to the extrusion die 102 are both installed with fixing components 103 for fixing the extrusion die 102, and the side of the extrusion die 102 is installed with a cleaning mechanism 104 for cleaning the side of the extrusion die 102.

[0061] An extrusion motor 101 for driving the spiral extrusion roller 1011 is installed on the side of the extruder body 1 and at a position corresponding to the spiral extrusion roller 1011 , and an output shaft of the extrusion motor 101 is fixedly connected to an end of the spiral extrusion roller 1011 .

[0062] The side of the extrusion die 102 is provided with a plurality of extrusion holes 1021 arranged at equal distances;

[0063] When the above technical solution is adopted, while the material is extruded through the extrusion die 102, the extruded material is continuously scraped away by the cleaning mechanism 104, thereby effectively avoiding the extruded material from accumulating on the side of the extrusion die 102 and ensuring the extrusion quality. At the same time, by setting the fixing component 103, it is convenient to disassemble and assemble the extrusion die 102, thereby facilitating the maintenance or replacement of the extrusion die 102, thereby improving the practicality of the present invention.

[0064] A sealing ring 1022 matching the extrusion die 102 is provided on the side of the extrusion body 1 and at a position corresponding to the extrusion die 102 . The sealing ring 1022 is provided to increase the sealing performance when the extrusion die 102 is connected to the extrusion body 1 .

[0065] See also Figure 5 As shown, the fixing assembly 103 includes a fixing base 1031 fixedly connected to the extruder body 1, a connecting rotating block 1032 is rotatably installed on the fixing base 1031 through a connecting shaft, a threaded clamping rod 1033 is fixedly connected to the side of the connecting rotating block 1032, and a clamping base 10331 used in conjunction with the threaded clamping rod 1033 is fixedly connected to the side of the extrusion mold 102 and corresponding to the position of the threaded clamping rod 1033, a fixing nut 1034 is threadedly connected to the threaded clamping rod 1033, and a lever handle 1035 is fixedly connected to the end of the threaded clamping rod 1033 away from the connecting rotating block 1032. By loosening the fixing nut 1034 and under the action of the thread of the threaded clamping rod 1033, the fixing nut 1034 is disengaged from the clamping base 10331, and then the threaded clamping rod 1033 is rotated by turning the handle 1035, and the threaded clamping rod 1033 is disengaged from the clamping base 10331, so that the extrusion mold 102 can be easily disassembled.

[0066] See also Figure 6 As shown, the cleaning mechanism 104 includes a mounting frame 1041 fixedly connected to the side of the extrusion die 102, two symmetrically arranged electric cylinders 1042 are fixedly connected to the side of the mounting frame 1041, an adjustment seat 1043 is fixedly connected to the output end of the electric cylinder 1042, and a cleaning component 1044 for cleaning the side of the extrusion die 102 is installed on the adjustment seat 1043.

[0067] The cleaning component 1044 includes a servo motor 10441 fixedly connected to the adjustment seat 1043, a scraper 10442 is fixedly connected to the output shaft of the servo motor 10441, and a scraper 10443 is fixedly connected to the side of the scraper 10442. The adjustment seat 1043 is driven to move by the electric cylinder 1042, and the scraper 10443 is made to contact the side of the extrusion die 102. Then, the servo motor 10441 is turned on to drive the scraper 10443 to rotate, so that the material extruded from the extrusion hole 1021 can be scraped off, thereby avoiding blockage caused by the accumulation of the extruded material on the side of the extrusion die 102.

[0068] When the preparation equipment of a high-temperature resistant and thin polypropylene cup body according to the embodiment of the present invention is used, while the material is extruded through the extrusion die 102, the adjustment seat 1043 is driven to move by the electric cylinder 1042, and the scraper 10443 is made to contact the side of the extrusion die 102, the servo motor 10441 is turned on, and the scraper 10443 is driven to rotate, and the material extruded from the extrusion hole 1021 is scraped off, thereby avoiding the blockage caused by the accumulation of the extruded material on the side of the extrusion die 102, and at the same time, by loosening the fixing nut 1034 and under the action of the thread of the threaded clamping rod 1033, the fixing nut 1034 is disengaged from the clamping seat 10331, the handle 1035 is turned to rotate the threaded clamping rod 1033, and the threaded clamping rod 1033 is disengaged from the clamping seat 10331, and the extrusion die 102 is conveniently disassembled to facilitate the maintenance or replacement of the extrusion die 102, thereby improving the practicality of the present invention.

[0069] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant thin polypropylene cup body, characterized in that: In parts by weight, it includes the following components: 50-80 parts of polypropylene, 2-10 parts of additives, 1-4 parts of color masterbatch and 10-15 parts of polypropylene copolymer.

2. A high temperature resistant thin polypropylene cup according to claim 1, characterized in that: The additives include butylated hydroxytoluene antioxidant, UV anti-ultraviolet agent, calcium zinc heat stabilizer, polyethylene wax lubricant and nano silicon dioxide filler.

3. A method for preparing a high temperature resistant thin polypropylene cup body, characterized in that The steps include: S1. Put polypropylene, additives, color masterbatch and polypropylene copolymer in parts by weight into a hot melt machine in sequence, control the temperature of the hot melt machine at 200-250 degrees Celsius, and control the hot melt time at 30-50 minutes until the raw materials are completely melted and evenly mixed to form a polypropylene mixture; S2, putting the polypropylene mixture formed in S1 into an extruder, extruding the polypropylene mixture through the extruder, and cooling and forming the polypropylene mixture, thereby obtaining polypropylene mixed particles; S3, putting the polypropylene mixed particles obtained in S2 into an injection mold, injecting the molten polypropylene into the mold after passing through the heating system of the injection mold, and finally taking it out after cooling and solidification to obtain a polypropylene cup body blank; S4, trimming the polypropylene cup body blank obtained in S3 to remove excess burrs and flashes, and at the same time removing oil stains and impurities in the production process by cleaning to obtain a polypropylene cup body finished product.

4. A method for preparing a high temperature resistant thin polypropylene cup body, characterized in that: The extruder for extruding the cup body comprises an extruder body (1), wherein a spiral extrusion roller (1011) for conveying raw materials is arranged inside the extruder body (1), a detachable extrusion die (102) is arranged at the discharge port of the extruder body (1), a fixing assembly (103) for fixing the extrusion die (102) is installed at the top and bottom of the extruder body (1) and at positions corresponding to the extrusion die (102), and a cleaning mechanism (104) for cleaning the side of the extrusion die (102) is installed on the side of the extrusion die (102).

5. The method for preparing a high temperature resistant thin polypropylene cup according to claim 4, characterized in that: An extrusion motor (101) for driving the spiral extrusion roller (1011) is installed on the side of the extruder body (1) and at a position corresponding to the spiral extrusion roller (1011), and the output shaft of the extrusion motor (101) is fixedly connected to the end of the spiral extrusion roller (1011).

6. The method for preparing a high temperature resistant thin polypropylene cup according to claim 5, characterized in that: A plurality of extrusion holes (1021) arranged at equal distances are provided on the side of the extrusion die (102).

7. The method for preparing a high temperature resistant thin polypropylene cup according to claim 6, characterized in that: A sealing ring (1022) matching the extrusion die (102) is arranged on the side of the extruder body (1) and at a position corresponding to the extrusion die (102).

8. The method for preparing a high temperature resistant thin polypropylene cup according to claim 7, characterized in that: The fixing assembly (103) comprises a fixing seat (1031) fixedly connected to the extruder body (1), a connecting rotating block (1032) being rotatably mounted on the fixing seat (1031) via a connecting shaft, a threaded clamping rod (1033) being fixedly connected to the side of the connecting rotating block (1032), a clamping seat (10331) for use with the threaded clamping rod (1033) being fixedly connected to the side of the extrusion die (102) and corresponding to the position of the threaded clamping rod (1033), a fixing nut (1034) being threadedly connected to the threaded clamping rod (1033), and a lever handle (1035) being fixedly connected to one end of the threaded clamping rod (1033) away from the connecting rotating block (1032).

9. The method for preparing a high temperature resistant thin polypropylene cup according to claim 8, characterized in that: The cleaning mechanism (104) comprises a mounting frame (1041) fixedly connected to the side of the extrusion die (102); two symmetrically arranged electric cylinders (1042) are fixedly connected to the side of the mounting frame (1041); an adjustment seat (1043) is fixedly connected to the output end of the electric cylinder (1042); and a cleaning component (1044) for cleaning the side of the extrusion die (102) is installed on the adjustment seat (1043).

10. The method for preparing a high temperature resistant thin polypropylene cup according to claim 9, characterized in that: The cleaning component (1044) comprises a servo motor (10441) fixedly connected to the adjustment seat (1043); a scraper (10442) is fixedly connected to the output shaft of the servo motor (10441); and a scraper (10443) is fixedly connected to the side of the scraper (10442).

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