Auxiliary agent adding device for modified plastic production

By designing a rotating feeding group and a moving mixing group, combined with a screw and heating device, the problem of uneven mixing of auxiliary agents in existing equipment is solved, achieving a highly efficient and rapid mixing effect.

CN121870947BActive Publication Date: 2026-06-19XIAMEN KEAISI PLASTICS TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN KEAISI PLASTICS TECH
Filing Date
2026-03-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing plastic additive addition equipment is difficult to achieve rapid mixing of additives with base materials from the bottom, resulting in poor mixing uniformity. Furthermore, the mixing structure is simple, the mixing efficiency is low, and it cannot adapt to different production conditions.

Method used

It adopts a rotating feeding group, a moving mixing and stirring group and a screw structure, combined with the revolution and rotation of multiple stirring rods, and a heating device to achieve rapid mixing and uniform distribution of auxiliary agents.

Benefits of technology

It improves the mixing efficiency and uniformity of additives and base materials, shortens the mixing cycle, adapts to different production conditions, and improves discharge speed and mixing effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121870947B_ABST
    Figure CN121870947B_ABST
Patent Text Reader

Abstract

This invention specifically relates to an auxiliary agent addition device for modified plastics production, belonging to the technical field of plastic auxiliary agent mixing and addition equipment. It includes a barrel body, lifting supports and a discharge pipe installed at the bottom of the barrel body, an inner fixed cylinder installed inside the barrel body, and an upper support at the top of the barrel body. The device feeds material through a rotating pipe and simultaneously drives the movable mixing and stirring groups to rotate. This allows the lower rotating crossbar and lower stirring rod of the two movable mixing and stirring groups to revolve and rotate around the rotating pipe, improving the performance and range of the rotational mixing of the lower rotating crossbar and lower stirring rod. Furthermore, with the coordinated work of the lower gear, lower fixed gear ring, upper fixed gear ring, and inner active gear ring, the upper rotating crossbar and upper stirring rod, mounted on the rotating ring, can also differentially revolve and rotate around the rotating pipe, thereby significantly improving the mixing and collision effect and efficiency of the auxiliary agents.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention specifically relates to an auxiliary agent addition device for modified plastics production, and pertains to the technical field of plastic auxiliary agent mixing and addition equipment. Background Technology

[0002] In the production and processing of modified plastics, the precise addition and uniform mixing of additives are crucial factors determining the performance of the finished material. Most existing plastic additive addition equipment integrates a stirring function to mix the additives with the base material. However, in practical applications, there are still many issues that need improvement. Currently, common equipment typically uses a simple top-mounted feed hopper for additive input. This feeding method causes the additives to enter the mixing drum from the surface of the base material, making it difficult to achieve the effect of the additives entering the drum from the bottom first and mixing quickly with the base material. This prolongs the overall mixing cycle and affects production efficiency. Furthermore, existing equipment... The existing stirring structure is relatively simple. Its core component, the stirring rod, can only revolve around the central shaft, and cannot achieve a combined rotation and revolution. This simple stirring method makes it difficult to form a complex and sufficient flow field inside the cylinder, so that additives and base materials of different densities and particle sizes cannot achieve the ideal mixing uniformity in a short time. In addition, the stirring speed of existing equipment is usually uniform and fixed. When facing different production conditions, the mixing effect and the discharge addition efficiency need to be improved. Therefore, it is urgent to propose an additive addition device for modified plastics production to improve the above problems. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide an auxiliary agent addition device for modified plastics production, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an auxiliary agent addition device for modified plastic production, comprising a barrel body, lifting support feet and a discharge pipe installed at the bottom of the barrel body, an inner fixed cylinder installed inside the barrel body, and an upper support provided at the top of the barrel body. A rotating feeding group is rotatably installed in the middle of the barrel body. The rotating feeding group is rotatably located inside the inner fixed cylinder. The rotating feeding group includes an integrally formed conical hopper and a rotating pipe. Multiple inner active toothed rings are fixedly sleeved on the outside of the rotating pipe.

[0005] Multiple movable mixing and stirring groups are arranged vertically and vertically in the middle of the rotating tube. Each movable mixing and stirring group includes multiple lower and upper rotating crossbars arranged in a ring array around the outer periphery of the rotating tube, a rotating ring rotatably installed inside the inner fixed cylinder, and a lower fixed toothed ring fixed inside the inner fixed cylinder. An upper fixed toothed ring opposite to the lower fixed toothed ring is fixed on the lower side of the rotating ring. Lower and upper stirring rods are fixed on the outer sides of the lower and upper rotating crossbars, and are staggered.

[0006] The lower rotating crossbar is rotatably installed on the outside of the rotating tube, and a lower gear is fixedly installed at the outer end of the lower rotating crossbar. The lower gear meshes with the lower fixed gear ring and the upper fixed gear ring. When the rotating tube rotates horizontally, it synchronously drives the lower rotating crossbar to rotate horizontally. The lower gear fixed on the lower rotating crossbar meshes with the lower fixed gear ring to achieve revolution and rotation. When the lower rotating crossbar and the lower stirring rod rotate horizontally with the rotating tube, they also rotate synchronously on the surface of the rotating tube to mix and stir the auxiliary agent.

[0007] In a further improved scheme, each of the lower rotating crossbars is located below the upper rotating crossbar, and the outer end of each of the upper rotating crossbars is rotatably mounted inside the rotating ring. An upper gear is mounted on one end of the upper rotating crossbar, and the upper gear meshes with the inner active gear ring for transmission. When the lower gear revolves and rotates, the meshing pushes the upper fixed gear ring and the rotating ring to rotate in the same direction with accelerated rotation inside the inner fixed cylinder, thereby driving the upper rotating crossbar to revolve around the outer circumference of the rotating tube, so that the upper rotating crossbar and the lower rotating crossbar form a differential rotation. At the same time, the upper gear of the upper rotating crossbar meshes with the inner active gear ring, so that the upper rotating crossbar and the upper stirring rod rotate, mixing and stirring the material inside the inner fixed cylinder.

[0008] In a further improved design, the upper side of the rotating tube is rotatably connected to the barrel body, and the upper bracket is equipped with a rotating motor mounted on the top, with a pulley mounted on the output shaft of the rotating motor. The pulley and the rotating tube are connected by a transmission bar.

[0009] In a further improved design, a spiral rod is rotatably mounted in the middle of the upper support. The spiral rod is rotatably passed through the conical bucket and the middle of the rotating tube, and the spiral rod is located above the outlet of the discharge pipe. A drive motor for driving the spiral rod to rotate is installed at the top of the upper support.

[0010] In a further improved design, a stirring arc rod is installed at the bottom of the spiral rod, which is located below the rotating tube, and a rotating retaining ring is fixed at the top of the stirring arc rod.

[0011] A further improved design includes a protective cover installed on the top of the bucket, which covers the outside of the conical bucket, and an opening on one side of the protective cover for the movement of the transmission belt.

[0012] In a further improved design, an upper support rod is rotatably mounted on the inner side of the upper rotating crossbar, and the outer end of the upper support rod is fixedly installed in the middle of the inner side of the rotating ring. A lower support rod is rotatably mounted on the inner side of the lower rotating crossbar, and the lower support rod is fixedly installed on the outer side of the rotating tube.

[0013] In a further improved design, a feeding hopper is fixedly installed at the bottom of the barrel, and a perforated mesh plate is fixedly installed in the middle of the inner side of the feeding hopper. The discharge pipe rotates through the middle of the perforated mesh plate. The stirring arc rod and the rotating retaining ring are both located below the perforated mesh plate. An annular groove is opened on the bottom surface of the perforated mesh plate, and the rotating retaining ring is rotatably embedded in the annular groove.

[0014] In a further improved design, the bottom of the hopper is provided with a discharge port that communicates with the discharge pipe, the perimeter of the perforated mesh plate is provided with a communicating groove that communicates with the inner cavity of the inner fixed cylinder, and the hopper is equipped with multiple heating rods, with the ends of each heating rod being inserted through the inside of the perforated mesh plate.

[0015] A further improved design includes an electric discharge valve installed on the upper side of the discharge pipe, located directly below the screw rod.

[0016] By adopting the above technical solution, the present invention has the following advantages:

[0017] This invention features a simple and ingenious structure. By feeding through a rotating tube and simultaneously driving the movable mixing and stirring groups to rotate, the lower rotating crossbar and lower stirring rod of the two movable mixing and stirring groups can revolve and rotate around the rotating tube, improving the performance and range of the rotational mixing of the lower rotating crossbar and lower stirring rod. Furthermore, with the coordinated work of the lower gear, lower fixed gear ring, upper fixed gear ring, and inner active gear ring, the upper rotating crossbar and upper stirring rod, which are mounted on the rotating ring, can also revolve and rotate at different speeds around the rotating tube, thereby greatly improving the mixing and collision effect and efficiency of the auxiliary agents.

[0018] Secondly, the rotating tube, in conjunction with the screw rod and stirring arc rod, can initially and directly mix and convey the auxiliary materials into the bottom of the tank for rapid mixing. The screw rod can then be used to quickly discharge the materials by opening the electric discharge valve. The connection between the perforated mesh plate and the rotating tube not only improves the rotational stability of the discharge tube but also connects with the rotating retainer of the stirring arc rod to limit its rotation, thereby strengthening the rotational stability of the screw rod and stirring arc rod. Furthermore, in conjunction with the heating rod, the feeding hopper and perforated mesh plate can be heated according to usage requirements. The perforated mesh plate also conducts heat to the rotating tube, stirring arc rod, and rotating retainer, thus improving the mixing effect and reaction speed. Finally, a protective cover is installed on the top of the tank to cover the conical hopper, effectively isolating and protecting the rotating tube and conical hopper from damage during rotation and heating, preventing injury during material feeding. Attached Figure Description

[0019] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the inner fixed cylinder and the rotating tube of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the inner fixed cylinder and the movable mixing and stirring assembly of the present invention;

[0023] Figure 4 This is a schematic diagram of the mixing and stirring assembly and the rotating tube of the present invention;

[0024] Figure 5 This is a partial structural diagram of the mixing and stirring assembly of the present invention;

[0025] Figure 6 This is an exploded structural diagram of the lower rotating crossbar and the upper rotating crossbar of the present invention;

[0026] Figure 7 This is a schematic diagram of the transmission structure of the rotating tube of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the feeding hopper disc of the present invention;

[0028] Figure 9 For the present invention Figure 8 A schematic diagram of the decomposed structure;

[0029] Figure 10 For the present invention Figure 9 A structural diagram from another perspective;

[0030] In the diagram: 1. Barrel body; 2. Lifting support legs; 21. Discharge pipe; 22. Electric discharge valve; 3. Rotating feed assembly; 30. Rotating motor; 301. Pulley; 31. Conical hopper; 32. Rotating pipe; 33. Inner active gear ring; 4. Upper support; 5. Spiral rod; 51. Drive motor; 52. Stirring arc rod; 53. Rotating retaining ring; 6. Protective cover; 7. Inner fixed cylinder; 8. Movable mixing assembly; 81. Lower rotating crossbar; 81. Lower stirring rod; 812. Lower support rod; 813. Lower fixed gear ring; 83. Rotating ring; 84. Upper fixed gear ring; 85. Upper rotating crossbar; 86. Upper stirring rod; 861. Upper support rod; 862. Upper gear; 863. Discharge hopper plate; 9. Discharge port; 90. Hollowed-out mesh plate; 92. Connecting groove; 93. Heating rod; 94. Ring groove. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1-10As shown, this invention provides an auxiliary agent addition device for modified plastics production, including a barrel 1, lifting legs 2 and a discharge pipe 21 installed at the bottom of the barrel 1, an inner fixed cylinder 7 installed inside the barrel 1, and an upper support 4 located at the top of the barrel 1. The lifting legs 2 can be raised and lowered to control the height of the entire barrel 1, facilitating later adjustment of the height of the discharge pipe 21 for outward conveying of the additive. A rotating feeding group 3 is rotatably installed in the middle of the barrel 1, rotatably located inside the inner fixed cylinder 7. The rotating feeding group 3 includes an integrally formed conical hopper 31 and a rotating pipe 32. Multiple inner active toothed rings 33 are fixedly sleeved on the outer side of the rotating pipe 32. Two sets of movable mixing and stirring groups 8 are arranged vertically and vertically in the middle of the rotating pipe 32. Each movable mixing and stirring group 8 includes three lower rotating crossbars 81 arranged in a ring array around the outer periphery of the rotating pipe 32. The rotating crossbar 86, the rotating ring 84 rotatably installed inside the inner fixed cylinder 7, and the lower fixed toothed ring 83 fixed inside the inner fixed cylinder 7 are all included. The lower side of the rotating ring 84 is fixed with an upper fixed toothed ring 85 opposite to the lower fixed toothed ring 83. The lower rotating crossbar 81 and the upper rotating crossbar 86 are fixed with staggered lower stirring rods 811 and upper stirring rods 861 on their outer sides. At the same time, the upper supporting rod 862 is rotatably installed inside the upper rotating crossbar 86. The outer end of the upper supporting rod 862 is fixedly installed in the middle of the inner side of the rotating ring 84. The lower supporting rod 812 is rotatably installed inside the lower rotating crossbar 81 and is fixedly installed outside the rotating tube 32. The distance between the upper supporting rod 862 and the lower supporting rod 812 can be relatively far apart, and the lengths of the lower stirring rod 811 and the upper stirring rod 861 can be adjusted appropriately to avoid mutual interference during revolution and rotation.

[0033] The lower rotating crossbar 81 is rotatably mounted on the outside of the rotating tube 32, and a lower gear 813 is fixedly installed at the outer end of the lower rotating crossbar 81. The lower gear 813 meshes with the lower fixed gear ring 83 and the upper fixed gear ring 85, and the number of teeth of the gear ring is greater than the number of teeth of the gear. When the rotating tube 32 rotates horizontally, it synchronously drives the lower rotating crossbar 81 to rotate horizontally, and the lower gear 813 fixed on the lower rotating crossbar 81 meshes with the lower fixed gear ring 83 to achieve revolution and rotation. When the lower rotating crossbar 81 and the lower stirring rod 811 rotate horizontally with the rotating tube 32, they also rotate synchronously on the surface of the rotating tube 32, so as to perform multi-rotation mixing and stirring of the auxiliary agent, thereby improving the mixing effect and efficiency of the material.

[0034] Furthermore, each lower rotating crossbar 81 is located below the upper rotating crossbar 86, and the outer end of each upper rotating crossbar 86 is rotatably mounted inside the rotating ring 84. An upper gear 863 is mounted on one end of each upper rotating crossbar 86, and the upper gear 863 meshes with the inner driving gear ring 33 for transmission. The number of teeth on the gear ring is greater than the number of teeth on the gear. When the lower gear 813 revolves and rotates, it meshes and pushes the upper fixed gear ring 85 and the rotating ring 84 to rotate in the same direction within the inner fixed cylinder 7, thereby driving the upper rotating crossbar 86 to revolve around the outer circumference of the rotating tube 32, allowing the upper... The rotating crossbar 86 and the lower rotating crossbar 81 rotate at different speeds. Therefore, the upper rotating crossbar 86, which is mounted on the rotating ring 84, rotates at a speed greater than that of the lower rotating crossbar 81. This difference in rotation speed allows for better mixing of the internal materials. At the same time, the upper gear 863 of the upper rotating crossbar 86 meshes with the inner active gear ring 33, causing the upper rotating crossbar 86 and the upper stirring rod 861 to rotate on their own axis while revolving around each other. This further mixes and stirs the materials inside the inner fixed cylinder 7, thereby significantly improving the mixing and collision effect and efficiency of the auxiliary agents.

[0035] Meanwhile, the upper side of the rotating tube 32 is rotatably connected to the barrel 1. The upper support 4 is equipped with a rotating motor 30 mounted on its top, and the output shaft of the rotating motor 30 is equipped with a pulley 301. The pulley 301 is connected to the rotating tube 32 via a transmission belt. The rotating motor 30 drives the pulley 301 to rotate. The outer side of the rotating tube 32 is also equipped with a transmission wheel to be connected to the transmission belt. In this way, the interface drives the rotating tube 32 to rotate. In addition, in order to improve the efficiency of mixing and conveying and the feeding effect, a screw rod 5 is rotatably installed in the middle of the upper support 4. The screw rod 5 is connected to the conical bucket 31 and the rotating tube 32. The spiral rod 5 is located above the outlet pipe 21. The top of the upper bracket 4 is equipped with a drive motor 51 for driving the spiral rod 5 to rotate. After the drive motor 51 drives the spiral rod 5, it can not only quickly mix and transport the material on the upper side of the outlet pipe 21 downwards, but also directly send the material into the bottom of the barrel to fully mix the material. Furthermore, four stirring arc rods 52 are installed in a ring array at the bottom of the spiral rod 5, which can simultaneously rotate and mix the material transported to the bottom of the barrel, and can disperse the material in all directions. Combined with the downward pushing and squeezing force of the spiral rod 5, the material can enter the inner fixed cylinder 7 more compactly and be mixed and stirred by the movable mixing and stirring group 8.

[0036] In this embodiment, a feeding hopper 9 is also fixedly provided at the bottom of the barrel 1. A perforated mesh plate 91 is fixedly provided in the middle of the inner side of the feeding hopper 9. The discharge pipe 21 rotates through the middle of the perforated mesh plate 91. The stirring arc rod 52 and the rotating retaining ring 53 are both located below the perforated mesh plate 91. An annular groove 94 is opened on the bottom surface of the perforated mesh plate 91, and a rotating retaining ring 53 is fixedly provided on the top of the stirring arc rod 52. The rotating retaining ring 53 can be rotatably embedded in the annular groove 94, so that the spiral rod 5 is indirectly connected to the feeding hopper 9. This can ensure the rotational stability of the spiral rod 5 and the stirring arc rod 52, and improve the overall structural strength. Moreover, a discharge port 90 communicating with the discharge pipe 21 is opened at the bottom of the feeding hopper 9. The feed pipe 21 is connected to the perforated mesh plate 91, and the perforated mesh plate 91 has connecting grooves 92 around its perimeter that connect to the inner cavity of the inner fixed cylinder 7. Therefore, the material being pressed and mixed by the spiral rod 5 and the material being mixed and dispersed by the horizontal rotation of the stirring arc rod 52 can quickly enter the inner fixed cylinder 7 through the connecting grooves 92 for further mixing. Moreover, the feed hopper 9 is equipped with six heating rods 93, and the ends of each heating rod 93 are inserted through the perforated mesh plate 91. The materials on the feed hopper 9 and the perforated mesh plate 91 can be heated according to the usage requirements. The perforated mesh plate 91 can also conduct heat to the rotating tube 32, the stirring arc rod 52 and the rotating retaining ring 53, thereby improving the mixing effect and reaction speed.

[0037] Furthermore, the stirring arc rod 52 is located below the rotating tube 32, and an electric discharge valve 22 is installed on the upper side of the discharge pipe 21. This electric discharge valve 22 is located directly below the screw rod 5. Therefore, when it is necessary to discharge material later, the electric discharge valve 22 can be opened. Under the continuous downward conveying force of the screw rod 5, the rate at which material is discharged into the discharge pipe 21 can be effectively increased. In addition, a protective cover 6 is installed on the top of the barrel 1. This protective cover 6 covers the outside of the conical bucket 31, and an opening is provided on one side of the protective cover 6 for the movement of the transmission belt. In this way, the protective cover 6 can effectively improve the safety protection effect of the equipment and avoid injury caused by the high-speed rotation of the conical bucket 31.

[0038] In a more specific embodiment, when using this invention, the auxiliary liquid material is fed into the conical hopper 31, and under the rotation of the screw rod 5 driven by the drive motor 51, the material is quickly mixed and conveyed downward from the middle of the rotating tube 32 to the bottom of the inner side of the barrel 1. The stirring arc rod 52 installed on the outer periphery of the bottom of the screw rod 5 rotates stably in the annular groove 94 on the lower side of the feed hopper plate 9 through the rotating retaining ring 53. Therefore, the material conveyed downward is mixed again by the stirring arc rod 52. Under the continuous operation of the screw rod 5 and the stirring arc rod 52, the material is squeezed outward and dispersed into the inner fixed cylinder 7 through the connecting grooves 92 on the four sides of the hollow mesh plate 91. The pulley 301 of the rotating motor 30 is connected to the rotating tube 32 through the transmission belt, so that the rotating tube 32 rotates stably in the barrel 1 and the hollow mesh plate 91.

[0039] The rotating tube 32 drives the two movable mixing units 8 to rotate synchronously. Specifically, since the lower support rod 812 is fixedly installed on the surface of the rotating tube 32, and the lower rotating crossbar 81 is rotatably sleeved on the lower support rod 812, the lower rotating crossbar 81 and the lower stirring rod 811 can revolve around the rotating tube 32 to mix the materials. Furthermore, when the lower rotating crossbar 81 revolves, the lower gear 813 installed at its outer end meshes and rotates along the lower fixed gear ring 83. Therefore, the lower rotating crossbar 81 rotates in the opposite direction while revolving, thereby improving the rotational mixing performance and range of the lower rotating crossbar 81 and the lower stirring rod 811. Also, while the lower gear 813 revolves and rotates, the upper fixed gear ring 85 meshes with the top of the lower gear 813, and the upper fixed gear ring 85 is installed on the lower side of the rotatable rotating ring 84. Therefore, while the lower gear 813 revolves and drives the upper fixed gear ring 85 to revolve, the rotation of the lower gear 813 further propels the upper fixed gear ring 85 to accelerate its rotation, making the rotation speed of the rotating ring 84 faster than that of the rotating tube 32. This allows the upper rotating crossbar 86 and the upper stirring rod 861, which are mounted on the inner side of the rotating ring 84, to accelerate their revolutions synchronously. The upper gear 863, which is fixed at one end of the upper rotating crossbar 86, meshes with the inner active gear ring 33 of the rotating tube 32. Therefore, the upper rotating crossbar 86 and the upper stirring rod 861 can also rotate on the upper support rod 862 while accelerating their revolutions, further improving the mixing effect and efficiency of the material. The upper stirring rod 861 and the lower stirring rod 811 are staggered in length and position, which greatly improves the mixing and collision effect and efficiency of the auxiliary agent.

[0040] Furthermore, during the aforementioned mixing process, the cooperating heating rod 93 heats the feeding hopper 9 and the perforated mesh plate 91, allowing the feeding hopper 9 and the perforated mesh plate 91 to generate heat to the material. The heat from the perforated mesh plate 91 can also be conducted to the rotating tube 32 and the stirring arc rod 52, thereby improving the efficiency of the heating reaction while conveying and mixing the material.

[0041] It should be noted that the auxiliary agent addition device for modified plastic production of the present invention mainly improves the above-mentioned structure. The functions, components and structures not mentioned can be implemented by using the components and structures in the prior art that can achieve the corresponding functions.

[0042] The above embodiments illustrate and describe the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary agent addition device for modified plastic production, comprising a barrel body (1), lifting support legs (2) and a discharge pipe (21) installed at the bottom of the barrel body (1), an inner fixing cylinder (7) installed inside the barrel body (1), and an upper support (4) provided at the top of the barrel body (1), characterized in that: A rotating feed assembly (3) is rotatably installed in the middle of the barrel (1). The rotating feed assembly (3) is rotatably located inside the inner fixed cylinder (7). The rotating feed assembly (3) includes an integrally formed conical bucket (31) and a rotating tube (32). Multiple inner active toothed rings (33) are fixedly sleeved on the outside of the rotating tube (32). The rotating tube (32) is provided with multiple movable mixing and stirring groups (8) arranged vertically in the middle. The movable mixing and stirring group (8) includes multiple lower rotating crossbars (81) and upper rotating crossbars (86) arranged in a ring array on the outer periphery of the rotating tube (32), a rotating ring (84) rotatably installed on the inner side of the inner fixed cylinder (7), and a lower fixed toothed ring (83) fixed on the inner side of the inner fixed cylinder (7). An upper fixed toothed ring (85) opposite to the lower fixed toothed ring (83) is fixed on the lower side of the rotating ring (84). Lower stirring rods (811) and upper stirring rods (861) are fixed on the outer sides of the lower rotating crossbars (81) and upper rotating crossbars (86) and are staggered from each other. The lower rotating crossbar (81) is rotatably installed on the outside of the rotating tube (32), and a lower gear (813) is fixedly installed at the outer end of the lower rotating crossbar (81). The lower gear (813) meshes with the lower fixed gear ring (83) and the upper fixed gear ring (85). When the rotating tube (32) rotates horizontally, it synchronously drives the lower rotating crossbar (81) to rotate horizontally. The lower gear (813) fixed on the lower rotating crossbar (81) meshes with the lower fixed gear ring (83) to achieve revolution and rotation. When the lower rotating crossbar (81) and the lower stirring rod (811) rotate horizontally with the rotating tube (32), they also rotate synchronously on the surface of the rotating tube (32) to mix and stir the auxiliary agent. Each of the lower rotating crossbars (81) is located below the upper rotating crossbar (86). The outer end of each of the upper rotating crossbars (86) is rotatably mounted inside the rotating ring (84). An upper gear (863) is mounted on one end of the upper rotating crossbar (86), and the upper gear (863) meshes with the inner active gear ring (33) for transmission. When the lower gear (813) revolves and rotates, it meshes and pushes the upper fixed gear ring (85) and the rotating ring (84) to rotate in the same direction inside the inner fixed cylinder (7), thereby driving the upper rotating crossbar (86) to revolve around the outer circumference of the rotating tube (32), so that the upper rotating crossbar (86) and the lower rotating crossbar (81) form a differential rotation. At the same time, the upper gear (863) of the upper rotating crossbar (86) meshes with the inner active gear ring (33), so that the upper rotating crossbar (86) and the upper stirring rod (861) rotate, and the material inside the inner fixed cylinder (7) is mixed and stirred.

2. The auxiliary agent addition device for modified plastics production according to claim 1, characterized in that, The upper side of the rotating tube (32) is rotatably connected to the barrel (1). The upper bracket (4) is equipped with a rotating motor (30) mounted on the top, and the output shaft of the rotating motor (30) is equipped with a pulley (301). The pulley (301) and the rotating tube (32) are connected by a transmission bar.

3. The auxiliary agent addition device for modified plastics production according to claim 2, characterized in that, The upper support (4) is rotatably mounted with a screw rod (5) in the middle. The screw rod (5) is rotatably passed through the middle of the conical bucket (31) and the rotating tube (32), and the screw rod (5) is located above the outlet of the discharge pipe (21). The top of the upper support (4) is equipped with a drive motor (51) for driving the screw rod (5) to rotate.

4. The auxiliary agent adding device for modified plastic production according to claim 3, characterized in that, The bottom of the spiral rod (5) is equipped with a stirring arc rod (52), which is located below the rotating tube (32), and a rotating retaining ring (53) is fixed at the top of the stirring arc rod (52).

5. The auxiliary agent adding device for modified plastic production according to claim 4, characterized in that, The top of the barrel (1) is equipped with a protective cover (6), which covers the outside of the conical bucket (31), and an opening is provided on one side of the protective cover (6) for the transmission belt to move.

6. The auxiliary agent adding device for modified plastic production according to claim 5, characterized in that, An upper support rod (862) is rotatably installed on the inner side of the upper rotating crossbar (86), and the outer end of the upper support rod (862) is fixedly installed in the middle of the inner side of the rotating ring (84). A lower support rod (812) is rotatably installed on the inner side of the lower rotating crossbar (81), and the lower support rod (812) is fixedly installed on the outer side of the rotating tube (32).

7. The auxiliary agent adding device for modified plastic production according to claim 6, characterized in that, The bottom of the barrel (1) is fixedly provided with a feeding hopper (9), and a hollow mesh plate (91) is fixedly provided in the middle of the inner side of the feeding hopper (9). The discharge pipe (21) rotates through the middle of the hollow mesh plate (91). The stirring arc rod (52) and the rotating retaining ring (53) are both located below the hollow mesh plate (91). The bottom surface of the hollow mesh plate (91) is provided with an annular groove (94), and the rotating retaining ring (53) is rotated and embedded in the annular groove (94).

8. The auxiliary agent adding device for modified plastic production according to claim 7, characterized in that, The bottom of the feeding hopper (9) is provided with a discharge port (90) that communicates with the discharge pipe (21). The perforated mesh plate (91) is provided with a connecting groove (92) that communicates with the inner cavity of the inner fixed cylinder (7). The feeding hopper (9) is equipped with multiple heating rods (93), and the ends of each heating rod (93) are inserted through the inside of the perforated mesh plate (91).

9. The auxiliary agent adding device for modified plastic production according to claim 8, characterized in that, An electric discharge valve (22) is installed on the upper side of the discharge pipe (21), and the electric discharge valve (22) is located directly below the screw rod (5).