Synthesizer for polypropylene production

By introducing mobile devices and auxiliary components into the polypropylene production unit, and utilizing a motor-driven gear and threaded rod system and heater scraper, the problem of material adsorption and cleaning on the barrel wall was solved, achieving uniform material mixing and improving production efficiency.

CN223832333UActive Publication Date: 2026-01-27FUJIAN PENGDALE TECH CO LTD
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Patent Information

Application Number
CN202520618568.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-01-27
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

In the existing equipment, the material adsorbed inside the barrel wall during the polypropylene production process is difficult to clean, resulting in uneven mixing and affecting production efficiency.

Method used

A composite device including a moving unit and auxiliary components was designed, which achieves automatic cleaning of the inner wall of the barrel by means of a motor-driven gear and threaded rod system, combined with a heater and a scraper.

Benefits of technology

It effectively cleans the material adsorbed on the inner wall of the barrel, ensuring uniform mixing of materials and improving the practicality and production efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polypropylene production, in particular to a synthesizer for polypropylene production, which comprises a base, a connecting frame and a first motor, the connecting frame is fixedly connected with the upper surface of the base, the first motor is fixedly connected with the upper surface of the connecting frame, and a barrel is arranged on the upper surface of the base. A stirring rod is arranged in the connecting frame, a moving device is arranged on the side face of the connecting frame, and the moving device comprises a limiting ring and two connecting arms. Through the arrangement of the moving device and the auxiliary assembly, materials adsorbed in the barrel are effectively cleaned, the effect of cleaning viscous materials adsorbed in the barrel is achieved, and the problems that when equipment is used, after the materials are stirred and processed, the inner wall of the barrel is prone to adsorbing the materials with high viscosity, the inner wall of the barrel is difficult to clean, and the working efficiency is reduced are solved. The situation that the polypropylene is difficult to produce by the equipment due to uneven mixing of the materials when the equipment is used again is avoided, and the practicability of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of polypropylene production technology, and in particular to a synthesis apparatus for polypropylene production. Background Technology

[0002] Polypropylene (PP) is a polymer formed by the addition polymerization of propylene. It is a white, waxy material, transparent and lightweight, flammable, with a melting point of 164-170℃, softening at around 155℃. Its operating temperature range is -30℃ to 140℃. It is resistant to corrosion from acids, alkalis, salt solutions, and various organic solvents below 80℃, but decomposes under high temperatures and oxidation. Polypropylene is a high-performance thermoplastic synthetic resin, mainly available in homopolymer, copolymer, and impact-resistant forms. It is widely used in injection molded parts, pipes, films, and fibers. The main production processes include liquid-phase bulk polymerization, a combination of liquid-phase bulk polymerization and gas-phase polymerization, and gas-phase polymerization. It is widely used in the production of clothing, blankets and other fiber products, medical devices, automobiles, bicycles, parts, pipelines, chemical containers, and also in food and pharmaceutical packaging. Polypropylene is generally produced using a specialized synthesis apparatus.

[0003] Existing technologies, such as patent CN217747089U, disclose a synthesis apparatus for polypropylene production. This patent employs a synthesis chamber, with a cleaning mechanism at its upper end. The cleaning mechanism includes a fixed frame fixedly mounted at the upper end of the synthesis chamber, a rotating ring movably mounted inside the fixed frame, a connecting ring fixedly mounted on the outer side of the rotating ring near the fixed frame, a support column fixedly mounted at the upper end of the connecting ring, a rotating disk fixedly mounted at the upper end of the support column, and a connecting plate fixedly mounted inside the rotating disk. This invention solves the problem in existing equipment where, during the mixing and synthesis process, some polypropylene raw materials adhere to the inner wall of the synthesis chamber, requiring workers to painstakingly scrape off the adhering raw materials bit by bit, resulting in a significant time commitment for cleaning.

[0004] During daily operation, when cleaning the inside of the barrel, there is a problem that after the equipment has been mixing and processing the materials, the inner wall of the barrel is prone to adsorbing highly viscous materials, making it difficult to clean. When the equipment is used again, the materials are easily mixed unevenly, making it difficult for the equipment to produce polypropylene. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where it is difficult to clean materials adsorbed inside the barrel wall, and to propose a synthesis device for polypropylene production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a synthesis apparatus for polypropylene production, comprising a base, a connecting frame, and a first motor. The connecting frame is fixedly connected to the upper surface of the base, and the first motor is fixedly connected to the upper surface of the connecting frame. A barrel is provided on the upper surface of the base. A stirring rod is provided inside the connecting frame. A moving device is provided on the side of the connecting frame. The moving device includes a limiting ring and two connecting arms. The two connecting arms are fixedly connected to both sides of the connecting frame. The limiting ring is located at the upper end of the barrel. Connecting blocks are fixedly connected to both sides of the limiting ring. A sliding rod is fixedly connected to the upper surface of the connecting block. The sliding rod is slidably connected to the interior of the connecting arm. A threaded rod is fixedly connected to the upper surface of the connecting block. The threaded rod is slidably connected to the interior of the connecting arm. An auxiliary component is provided inside the limiting ring. The auxiliary component includes a rotating frame and a positioning wheel. The positioning wheel is fixedly connected to the surface of the stirring rod. The rotating frame is rotatably connected to the surface of the limiting ring. A connecting sleeve is provided at one end of the rotating frame. A scraper is fixedly connected to the end of the connecting sleeve away from the rotating frame.

[0007] Furthermore, a limiting block is fixedly connected to the upper surface of the connecting arm, and a first gear is rotatably connected inside the limiting block. By setting the limiting block, the first gear and the second gear can be limited to rotate, reducing the possibility that the first gear and the second gear may easily detach from the surface of the connecting arm during use, making it difficult for the first gear and the second gear to move the threaded rod.

[0008] Furthermore, the first gear is rotatably connected to the surface of the threaded rod, and a nut is fixedly connected to the upper surface of the first gear to facilitate the movement of the threaded rod.

[0009] Furthermore, the nut is threadedly connected to the surface of the threaded rod, and a second gear is meshed with the side of the first gear. The second gear is rotatably connected to the inside of the limiting block. The second gear is provided to facilitate the rotation of the first gear.

[0010] Furthermore, a second motor is fixedly connected to the upper surface of the second gear, and a connecting seat is fixedly connected to the side of the second motor. The connecting seat is fixedly connected to the upper surface of the limiting block. The connecting seat is provided to facilitate limiting the second motor.

[0011] Furthermore, a heater is fixedly connected to the upper surface of the connecting sleeve, and a connecting plate is fixedly connected to the side of the heater. The heater is provided to facilitate heating of the connecting sleeve and the scraper, and to facilitate scraping of the material adsorbed inside the barrel wall.

[0012] Furthermore, the connecting plate is slidably connected to the interior of the rotating frame, and a cylinder is fixedly connected to the upper surface of the rotating frame. One end of the cylinder is fixedly connected to one end of the connecting plate. The cylinder facilitates the movement of the connecting plate.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, the inside of the bucket can be cleaned by setting a moving device and auxiliary components. When cleaning the inside of the bucket, the second motor is started, which drives the second gear to rotate. The rotation of the second gear then drives the first gear to rotate, which in turn drives the nut to rotate. The rotation of the nut then moves the threaded rod downward. When the threaded rod moves, it drives the connecting block to move against the limiting ring. The limiting ring then drives the rotating frame and auxiliary components to move downward into the inside of the bucket. When the limiting ring engages with the upper end of the bucket, the second motor stops running. When the limiting ring engages with the upper end of the bucket, the rotating frame and the surface of the positioning wheel are fitted together for positioning. Then, the cylinder is started, and the cylinder moves, driving the connecting plate to move inside the rotating frame. When the connecting plate moves... The heater moves, causing the connecting sleeve to engage with the scraper inside the barrel. The heater then heats both the connecting sleeve and the scraper. Simultaneously, the first motor rotates the stirring rod, causing the rotating frame to rotate on the surface of the limiting ring. The rotating frame then drives the connecting sleeve and scraper to clean the material adsorbed inside the barrel. By incorporating the moving device and auxiliary components, the system effectively cleans the material adsorbed inside the barrel, effectively removing sticky materials. This reduces the likelihood of highly viscous materials adsorbing onto the inner wall of the barrel after mixing and processing, making cleaning difficult and preventing uneven mixing during subsequent use, which could hinder polypropylene production. This improves the practicality of the equipment. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a synthesis apparatus for polypropylene production;

[0016] Figure 2 This utility model provides a side view of a synthesis apparatus for polypropylene production.

[0017] Figure 3 This utility model provides a partial structural schematic diagram of a synthesis apparatus for polypropylene production.

[0018] Figure 4 This invention provides a synthesis apparatus for polypropylene production. Figure 3 Schematic diagram of the structure at point A in the middle;

[0019] Figure 5 This invention provides a synthesis apparatus for polypropylene production. Figure 3 Schematic diagram of the structure at point B.

[0020] Legend: 1. Base; 2. Connecting frame; 3. First motor; 4. Bucket; 5. Stirring rod; 6. Moving device; 61. Limiting ring; 62. Connecting block; 63. Connecting arm; 64. Slide rod; 65. Threaded rod; 66. Limiting block; 67. First gear; 68. Nut; 69. Second gear; 610. Second motor; 611. Connecting seat; 7. Auxiliary components; 71. Rotating frame; 72. Positioning wheel; 73. Connecting sleeve; 74. Scraper; 75. Heater; 76. Connecting plate; 77. Cylinder. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a technical solution: a synthesis device for polypropylene production, including a base 1, a connecting frame 2 and a first motor 3. The connecting frame 2 is fixedly connected to the upper surface of the base 1, the first motor 3 is fixedly connected to the upper surface of the connecting frame 2, a barrel 4 is provided on the upper surface of the base 1, and a stirring rod 5 is provided inside the connecting frame 2.

[0022] The following section will describe the specific settings and functions of its mobile device 6 and auxiliary components 7.

[0023] In this embodiment: A moving device 6 is provided on the side of the connecting frame 2. The moving device 6 includes a limiting ring 61 and two connecting arms 63. The two connecting arms 63 are fixedly connected to both sides of the connecting frame 2. The limiting ring 61 is located at the upper end of the barrel 4. Connecting blocks 62 are fixedly connected to both sides of the limiting ring 61. A sliding rod 64 is fixedly connected to the upper surface of the connecting block 62. The sliding rod 64 is slidably connected to the inside of the connecting arm 63. A threaded rod 65 is fixedly connected to the upper surface of the connecting block 62. The threaded rod 65 is slidably connected to the inside of the connecting arm 63. An auxiliary component 7 is provided inside the limiting ring 61. The auxiliary component 7 includes a rotating frame 71 and a positioning wheel 72. The positioning wheel 72 is fixedly connected to the surface of the stirring rod 5. The rotating frame 71 is rotatably connected to the inside of the surface of the limiting ring 61. A connecting sleeve 73 is provided at one end of the rotating frame 71. A scraper 74 is fixedly connected to the end of the connecting sleeve 73 away from the rotating frame 71.

[0024] Specifically, a limiting block 66 is fixedly connected to the upper surface of the connecting arm 63, and a first gear 67 is rotatably connected inside the limiting block 66.

[0025] In this embodiment: by setting the limiting block 66, the first gear 67 and the second gear 69 can be limited to rotate, which reduces the possibility that the first gear 67 and the second gear 69 may easily detach from the surface of the connecting arm 63 during use, making it difficult for the first gear 67 and the second gear 69 to move the threaded rod 65.

[0026] Specifically, the surface of the first gear 67 is rotatably connected to the surface of the threaded rod 65, and a nut 68 is fixedly connected to the upper surface of the first gear 67. The nut 68 is provided to facilitate the movement of the threaded rod 65.

[0027] Specifically, the nut 68 is threadedly connected to the surface of the threaded rod 65, and the second gear 69 is meshed with the side of the first gear 67. The second gear 69 is rotatably connected to the inside of the limiting block 66. The second gear 69 is provided to facilitate the rotation of the first gear 67.

[0028] Specifically, a second motor 610 is fixedly connected to the upper surface of the second gear 69, and a connecting seat 611 is fixedly connected to the side of the second motor 610. The connecting seat 611 is fixedly connected to the upper surface of the limiting block 66. The connecting seat 611 is provided to facilitate limiting the second motor 610.

[0029] In this embodiment: a heater 75 is fixedly connected to the upper surface of the connecting sleeve 73, and a connecting plate 76 is fixedly connected to the side of the heater 75. The heater 75 is provided to facilitate heating of the connecting sleeve 73 and the scraper 74, and to facilitate scraping the material adsorbed inside the wall of the barrel 4.

[0030] Specifically, the connecting plate 76 is internally slidably connected to the rotating frame 71, and a cylinder 77 is fixedly connected to the upper surface of the rotating frame 71. One end of the cylinder 77 is fixedly connected to one end of the connecting plate 76. The cylinder 77 is provided to facilitate the movement of the connecting plate 76.

[0031] Working principle: When the equipment cleans the inside of the barrel 4, the second motor 610 is started. The second motor 610 then drives the second gear 69 to rotate, which in turn drives the first gear 67 to rotate. The first gear 67 then drives the nut 68 to rotate, which in turn moves the threaded rod 65 downward. When the threaded rod 65 moves, it drives the connecting block 62 to move the limiting ring 61. The limiting ring 61 then drives the rotating frame 71 and auxiliary components 7 to move downward into the inside of the barrel 4. When the limiting ring 61 engages with the upper end of the barrel 4, the second motor 610 stops. When the limiting ring 61 engages with the upper end of the barrel 4, the rotating frame 71 and the surface of the positioning wheel 72 are fitted together for positioning. Then, the cylinder 77 is started, which moves the connecting plate 76 inside the rotating frame 71. When the connecting plate 76 moves, it drives the... The heater 75 moves, which in turn drives the connecting sleeve 73 to engage the scraper 74 with the inside of the barrel 4. The heater 75 then heats the connecting sleeve 73 and the scraper 74 simultaneously. The first motor 3 then starts, rotating the stirring rod 5 and causing the rotating frame 71 to rotate on the surface of the limiting ring 61. The rotating frame 71 then drives the connecting sleeve 73 and the scraper 74 to clean the material adsorbed inside the barrel 4. By setting up the moving device 6 and auxiliary components 7, the material adsorbed inside the barrel 4 is effectively cleaned, effectively removing sticky materials. This reduces the likelihood of highly viscous materials adsorbing onto the inner wall of the barrel 4 after mixing and processing, making it difficult to clean and causing uneven mixing during reuse, thus hindering the production of polypropylene. This improves the practicality of the equipment.

Claims

1. A synthesis apparatus for polypropylene production, comprising a base (1), a connecting frame (2), and a first motor (3), characterized in that: The connecting frame (2) is fixedly connected to the upper surface of the base (1), the first motor (3) is fixedly connected to the upper surface of the connecting frame (2), a bucket (4) is provided on the upper surface of the base (1), a stirring rod (5) is provided inside the connecting frame (2), a moving device (6) is provided on the side of the connecting frame (2), the moving device (6) includes a limiting ring (61) and two connecting arms (63), the two connecting arms (63) are fixedly connected to both sides of the connecting frame (2), the limiting ring (61) is located at the upper end of the bucket (4), connecting blocks (62) are fixedly connected to both sides of the limiting ring (61), and a sliding rod (64) is fixedly connected to the upper surface of the connecting block (62). The sliding rod (64) is slidably connected to the inside of the connecting arm (63). A threaded rod (65) is fixedly connected to the upper surface of the connecting block (62). The threaded rod (65) is slidably connected to the inside of the connecting arm (63). An auxiliary component (7) is provided inside the limiting ring (61). The auxiliary component (7) includes a rotating frame (71) and a positioning wheel (72). The positioning wheel (72) is fixedly connected to the surface of the stirring rod (5). The rotating frame (71) is rotatably connected to the inside of the surface of the limiting ring (61). A connecting sleeve (73) is provided at one end of the rotating frame (71). A scraper (74) is fixedly connected to the end of the connecting sleeve (73) away from the rotating frame (71).

2. The synthesis apparatus for polypropylene production according to claim 1, characterized in that: The upper surface of the connecting arm (63) is fixedly connected to a limiting block (66), and the inside of the limiting block (66) is rotatably connected to a first gear (67).

3. A synthesis apparatus for polypropylene production according to claim 2, characterized in that: The first gear (67) is rotatably connected to the surface of the threaded rod (65), and a nut (68) is fixedly connected to the upper surface of the first gear (67).

4. A synthesis apparatus for polypropylene production according to claim 3, characterized in that: The nut (68) is threadedly connected to the surface of the threaded rod (65), and the side of the first gear (67) is meshed with the second gear (69), which is rotatably connected to the inside of the limiting block (66).

5. A synthesis apparatus for polypropylene production according to claim 4, characterized in that: The upper surface of the second gear (69) is fixedly connected to the second motor (610), and the side of the second motor (610) is fixedly connected to the connecting seat (611), which is fixedly connected to the upper surface of the limiting block (66).

6. A synthesis apparatus for polypropylene production according to claim 1, characterized in that: A heater (75) is fixedly connected to the upper surface of the connecting sleeve (73), and a connecting plate (76) is fixedly connected to the side of the heater (75).

7. A synthesis apparatus for polypropylene production according to claim 6, characterized in that: The connecting plate (76) is slidably connected to the inside of the rotating frame (71), and a cylinder (77) is fixedly connected to the upper surface of the rotating frame (71). One end of the cylinder (77) is fixedly connected to one end of the connecting plate (76).

Citation Information

Patent Citations

  • Synthesizer for polypropylene production

    CN217747089U