A surface modification device for polymeric materials

By combining the conveying and stirring components, the problem of uneven mixing between the lower and upper parts of the polymer mixing drum is solved, resulting in better mixing effect and contact area, and improving the quality and efficiency of modification processing.

CN224544980UActive Publication Date: 2026-07-24RIZHAO DAZHU CHEMICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RIZHAO DAZHU CHEMICAL CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing polymer surface modification devices, the mixing effect between the lower and upper parts of the mixing drum is poor during the stirring process, resulting in uneven mixing.

Method used

The design incorporates a combination of conveying and mixing components, including a rotating drum, propeller, guide component, crushing component, protective component, and propulsion component. The rotation of the drum and propeller enables the conveying and mixing of materials, while the crushing component crushes the materials, thereby increasing the material contact area.

Benefits of technology

It improves the mixing effect and contact area between polymer materials and modified materials, thereby enhancing the quality and efficiency of modification processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to polymer high molecular material technical field discloses a kind of surface modification devices for polymer high molecular material, including stirring drum, and the inlet is fixedly connected in the upper end of stirring drum, and the discharge outlet is arranged in the lower end of stirring drum, and the control box is fixedly connected in the outer side of stirring drum middle end, and the conveying assembly is arranged in the inner side of stirring drum, and the conveying assembly includes the rotary drum that stirring drum lower end inner side is rotatably connected, and the first propeller is fixedly connected in the inner side of rotary drum, and rotary drum lower side is fixedly connected with discharge outlet, and the stirring assembly is arranged in the inner side of rotary drum, and the guide component is arranged in the upper end of inlet, and the crushing component is arranged in the one end of guide component, and the protection component is arranged in the upper end of guide component, can be modified and processed to polymer high molecular material by the cooperation of conveying assembly and stirring assembly etc., can promote mixing effect when, to the polymer high molecular that added is crushed simultaneously, further promote the contact area of polymer high molecular material and modified material.
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Description

Technical Field

[0001] This utility model relates to the field of polymer materials technology, specifically to a surface modification device for polymer materials. Background Technology

[0002] Surface modification devices for polymer materials refer to specialized equipment that treats the surface of polymer materials through physical, chemical, or biological means to optimize the surface properties of polymer materials. Its core function is to improve the surface properties such as hydrophilicity / hydrophobicity, adhesion, wear resistance, corrosion resistance, and biocompatibility without changing the properties of the material matrix.

[0003] A search revealed Chinese patent application CN202221128241.0, which discloses a surface modification device for polymer materials. The device includes a mixing tank with two symmetrically distributed bases on both the left and right sides of the bottom. This device utilizes a stirring motor to rotate a circular rod, which in turn rotates the stirring shaft. Simultaneously, a second bevel gear engages with a first bevel gear, causing a cam to indirectly push an L-shaped rod downwards. This allows the stirring rod to move up and down for stirring. A rotary motor also drives a semi-circular gear, causing a gear frame to move a support plate left and right, enabling the stirring rod to move left and right for stirring. This results in more thorough and uniform mixing, improving the quality and efficiency of polymer material modification.

[0004] In the aforementioned prior art, the mixing structure is mainly driven by the meshing of gears to rotate laterally while stirring. At the same time, the stirring rod can be driven by a cam to stir the mixing structure longitudinally, thereby improving the mixing effect. Although this stirring method can enhance the stirring effect by moving the material, during the stirring process, the material at the bottom and top of the mixing tank cover cannot be easily exchanged and mixed, resulting in poor mixing effect between some polymer materials and modified materials. Utility Model Content

[0005] The purpose of this invention is to provide a surface modification device for polymer materials, which solves the problem that in the prior art, when modifying polymer materials, it is inconvenient to mix the material inside the lower end of the stirring drum with the material at the upper end of the stirring drum, resulting in poor mixing effect.

[0006] This utility model provides the following technical solution: a surface modification device for polymer materials, comprising a stirring drum, an inlet fixedly connected to the upper end of the stirring drum, and an outlet provided at the lower end of the stirring drum, a control box fixedly connected to the outer side of the middle end of the stirring drum, a conveying assembly provided inside the stirring drum, and the conveying assembly including a rotating drum rotatably connected to the inner side of the lower end of the stirring drum, a first propeller fixedly connected to the inner side of the rotating drum, and the lower side of the rotating drum fixedly connected to the outlet, a stirring assembly provided inside the rotating drum, a guiding assembly provided at the upper end of the inlet, a crushing assembly provided at one end of the guiding assembly, a protective assembly provided at the upper end of the guiding assembly, a pushing assembly provided at one end of the protective assembly, and a limiting assembly provided at the end of the pushing assembly near the protective assembly.

[0007] As a preferred embodiment of the above technical solution, the stirring assembly includes a first motor fixedly connected to the middle of the upper side of the stirring drum, and the output shaft of the first motor passes through the stirring drum and is fixedly connected to a rotating rod. The lower end of the rotating rod is rotatably connected inside the stirring drum, and a second propeller is fixedly connected to the outer side of the lower end of the rotating rod.

[0008] As a preferred embodiment of the above technical solution, the guiding component includes a first protective cover fixedly connected to the upper end of the feed inlet, and a guide plate fixedly connected to the inner side of the upper end of the first protective cover.

[0009] The above technical solution utilizes a guide plate to guide the delivery of polymer materials.

[0010] As a preferred embodiment of the above technical solution, the crushing assembly includes a second outer shell fixedly connected to the outer side of one end of the first protective cover, and a second motor fixedly connected to the side of the second outer shell away from the first protective cover. The output shaft of the second motor is fixedly connected to a first gear through the second outer shell, and a second gear is engaged at one end of the first gear. A crushing cylinder is fixedly connected to the end of the first gear and the second gear near the first protective cover, and the end of the crushing cylinder away from the first gear and the second gear is rotatably connected inside the first protective cover through the first protective cover.

[0011] As a preferred embodiment of the above technical solution, the protective component includes a first protective cover fixedly connected to the upper end of the first protective cover, and a second protective cover rotatably connected to the end of the first protective cover away from the first protective cover.

[0012] As a preferred embodiment of the above technical solution, the pushing component includes a support plate fixedly connected to the outer side of the lower end of the first protective cover, and an electric telescopic rod is rotatably connected to the upper end of the support plate.

[0013] As a preferred embodiment of the above technical solution, the limiting component includes a first limiting block fixedly connected to the upper end of the electric telescopic rod, and a second limiting block fixedly connected to the end of the first limiting block away from the electric telescopic rod, with the outer sides of the first limiting block and the second limiting block inserted into the second protective cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device for surface modification of polymer materials can improve the mixing effect when modifying polymer materials by using a combination of conveying and stirring components. At the same time, it can pulverize the added polymer materials to further increase the contact area between the polymer materials and the modified materials. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a surface modification device for polymer materials.

[0017] Figure 2 This is a schematic cross-sectional view of a surface modification device for polymer materials.

[0018] Figure 3 This is an enlarged cross-sectional schematic diagram of the crushing component of a surface modification device for polymer materials.

[0019] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Mixing drum; 11. Feed inlet; 12. Discharge outlet; 13. Control box; 2. Conveying assembly; 21. Rotary drum; 22. First propeller; 3. Mixing assembly; 31. First motor; 32. Rotating rod; 33. Second propeller; 4. Guiding assembly; 41. First protective cover; 42. Guide plate; 5. Crushing assembly; 51. Second outer shell; 52. Second motor; 53. First gear; 54. Second gear; 55. Crushing drum; 6. Protective assembly; 61. First protective cover; 62. Second protective cover; 7. Pushing assembly; 71. Support plate; 72. Electric telescopic rod; 8. Limiting assembly; 81. First limit block; 82. Second limit block. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figures 1-4As shown, this utility model provides a technical solution: a surface modification device for polymer materials, including a stirring drum 1, with an inlet 11 fixedly connected to the upper end of the stirring drum 1 and an outlet 12 provided at the lower end of the stirring drum 1. A control box 13 is fixedly connected to the outer side of the middle end of the stirring drum 1, and a conveying assembly 2 is provided inside the stirring drum 1. The conveying assembly 2 includes a rotating drum 21 rotatably connected to the inner side of the lower end of the stirring drum 1. A first propeller 22 is fixedly connected to the inner side of the rotating drum 21, and the lower side of the rotating drum 21 is fixedly connected to the outlet 12. A [missing information - likely a conduit or device] is provided inside the rotating drum 21. The mixing component 3 has a guide component 4 at the upper end of the feed inlet 11, a crushing component 5 at one end of the guide component 4, a protective component 6 at the upper end of the guide component 4, a pushing component 7 at one end of the protective component 6, and a limiting component 8 at the end of the pushing component 7 near the protective component 6. By cooperating with the conveying component 2 and the mixing component 3, the mixing effect can be improved when modifying polymer materials. At the same time, the added polymer is crushed, further increasing the contact area between the polymer material and the modified material.

[0023] like Figure 2 As shown, the stirring assembly 3 includes a first motor 31 fixedly connected to the middle of the upper side of the stirring drum 1, and a rotating rod 32 fixedly connected through the output shaft of the first motor 31 through the stirring drum 1. The lower end of the rotating rod 32 is rotatably connected inside the stirring drum 1, and a second propeller 33 is fixedly connected to the outer side of the lower end of the rotating rod 32. When the first motor 31 is started, its output shaft drives the rotating rod 32 and the second propeller 33 to rotate. After the rotating rod 32 rotates, it drives the rotating drum 21 and the first propeller 22 to rotate. The propellers of the second propeller 33 and the first propeller 22 are in opposite directions, thereby using the second propeller 33 and the first propeller 22 to stir and mix the polymer material and the modifier.

[0024] like Figure 2 As shown, the guide assembly 4 includes a first protective cover 41 fixedly connected to the upper end of the feed inlet 11, and a guide plate 42 fixedly connected to the inner side of the upper end of the first protective cover 41.

[0025] like Figure 3As shown, the crushing assembly 5 includes a second outer shell 51 fixedly connected to the outer side of one end of the first protective cover 41, and a second motor 52 fixedly connected to the side of the second outer shell 51 away from the first protective cover 41. The output shaft of the second motor 52 passes through the second outer shell 51 and is fixedly connected to a first gear 53. One end of the first gear 53 is meshed with a second gear 54. The crushing cylinder 55 is fixedly connected to the end of the first gear 53 and the second gear 54 near the first protective cover 41. The end of the crushing cylinder 55 away from the first gear 53 and the second gear 54 passes through the first protective cover 41 and is rotatably connected inside the first protective cover 41. After the second motor 52 is started, the output shaft drives the first gear 53 to rotate under the support of the second outer shell 51. After the first gear 53 rotates, it drives the second gear 54 to rotate through gear meshing with the second gear 54. The rotation of the first gear 53 and the second gear 54 simultaneously drives the two sets of crushing cylinders 55 to rotate.

[0026] like Figure 1 and Figure 2 As shown, the protective component 6 includes a first protective cover 61 fixedly connected to the upper end of the first protective cover 41, and a second protective cover 62 rotatably connected to the end of the first protective cover 41 away from the first protective cover 61.

[0027] like Figure 2 As shown, the pushing component 7 includes a support plate 71 fixedly connected to the outer side of the lower end of the first protective cover 41, and an electric telescopic rod 72 is rotatably connected to the upper end of the support plate 71. The electric telescopic rod 72 is activated under the support of the support plate 71. After the electric telescopic rod 72 is activated, it retracts and pulls the second protective cover 62 to rotate and open through the first limit block 81 and the second limit block 82.

[0028] like Figure 4 As shown, the limiting component 8 includes a first limiting block 81 fixedly connected to the upper end of the electric telescopic rod 72, and a second limiting block 82 fixedly connected to the end of the first limiting block 81 away from the electric telescopic rod 72. The outer sides of the first limiting block 81 and the second limiting block 82 are inserted into the second protective cover 62. The electric telescopic rod 72 pulls the second protective cover 62 to rotate and open through the first limiting block 81 and the second limiting block 82.

[0029] Working principle: When processing polymer materials, the electric telescopic rod 72 is first activated under the support of the support plate 71. After activation, the electric telescopic rod 72 retracts and pulls the second protective cover 62 to rotate and open through the first and second limiting blocks 81 and 82. After the second protective cover 62 rotates and opens, the electric telescopic rod 72 is closed, and then the second motor 52 is activated. After activation, the output shaft of the second motor 52, supported by the second housing 51, drives the first gear 53 to rotate. The rotation of the first gear 53, through gear meshing with the second gear 54, drives the second gear 54 to rotate. The rotation of the first gear 53 and the second gear 54 simultaneously drives the two sets of crushing cylinders 55 to rotate. Then, the polymer material is fed into the first protective cover 41 under the guidance of the guide plate 42. Subsequently, the electric telescopic rod 72 is activated to extend and push the second protective cover 62 to rotate and... The first protective cover 61 is closed. At this time, the polymer material put into the first protective cover 41 is crushed by the rotation of the crushing cylinder 55. The crushed polymer material falls into the mixing cylinder 1. After the polymer material is put in, the electric telescopic rod 72 can be activated again to open the second protective cover 62. Then, the modifier is put into the mixing cylinder 1 through the first protective cover 41 and the feed port 11. At this time, the first motor 31 is started so that its output shaft drives the rotating rod 32 and the second propeller 33 to rotate. After the rotating rod 32 rotates, it drives the rotating cylinder 21 and the first propeller 22 to rotate. The propellers of the second propeller 33 and the first propeller 22 are opposite in direction, so the polymer material and the modifier are stirred and mixed by the second propeller 33 and the first propeller 22. After the mixing is completed, the discharge port 12 is opened to discharge it.

[0030] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A surface modification device for polymer materials, comprising a stirring drum (1), wherein a feed inlet (11) is fixedly connected to the upper end of the stirring drum (1), and a discharge outlet (12) is provided at the lower end of the stirring drum (1), and a control box (13) is fixedly connected to the outer side of the middle end of the stirring drum (1), characterized in that: The mixing drum (1) is provided with a conveying component (2) inside, and the conveying component (2) includes a rotating drum (21) rotatably connected to the lower inner side of the mixing drum (1). The rotating drum (21) is fixedly connected to a first propeller (22), and the lower side of the rotating drum (21) is fixedly connected to the discharge port (12). The rotating drum (21) is provided with a mixing component (3) inside, and a guiding component (4) is provided at the upper end of the feed inlet (11). A crushing component (5) is provided at one end of the guiding component (4), and a protective component (6) is provided at the upper end of the guiding component (4). A pushing component (7) is provided at one end of the protective component (6), and a limiting component (8) is provided at the end of the pushing component (7) near the protective component (6).

2. The surface modification device for polymer materials according to claim 1, characterized in that: The stirring assembly (3) includes a first motor (31) fixedly connected to the middle of the upper side of the stirring drum (1), and the output shaft of the first motor (31) is fixedly connected to a rotating rod (32) through the stirring drum (1). The lower end of the rotating rod (32) is rotatably connected inside the stirring drum (1), and a second propeller (33) is fixedly connected to the outer side of the lower end of the rotating rod (32).

3. The surface modification device for polymer materials according to claim 1, characterized in that: The guide component (4) includes a first protective cover (41) fixedly connected to the upper end of the feed inlet (11), and a guide plate (42) fixedly connected to the inner side of the upper end of the first protective cover (41).

4. The surface modification device for polymer materials according to claim 1, characterized in that: The crushing assembly (5) includes a second outer shell (51) fixedly connected to the outer side of one end of the first protective cover (41), and a second motor (52) fixedly connected to the side of the second outer shell (51) away from the first protective cover (41). The output shaft of the second motor (52) passes through the second outer shell (51) and is fixedly connected to a first gear (53). One end of the first gear (53) is engaged with a second gear (54). The first gear (53) and the second gear (54) are fixedly connected to a crushing cylinder (55) at the end near the first protective cover (41), and the end of the crushing cylinder (55) away from the first gear (53) and the second gear (54) passes through the first protective cover (41) and is rotatably connected inside the first protective cover (41).

5. The surface modification device for polymer materials according to claim 1, characterized in that: The protective component (6) includes a first protective cover (61) fixedly connected to the upper end of the first protective cover (41), and a second protective cover (62) rotatably connected to the end of the first protective cover (41) away from the first protective cover (61).

6. The surface modification device for polymer materials according to claim 1, characterized in that: The pushing component (7) includes a support plate (71) fixedly connected to the outer side of the lower end of the first cover (41), and an electric telescopic rod (72) is rotatably connected to the upper end of the support plate (71).

7. The surface modification device for polymer materials according to claim 1, characterized in that: The limiting component (8) includes a first limiting block (81) fixedly connected to the upper end of the electric telescopic rod (72), and a second limiting block (82) fixedly connected to the end of the first limiting block (81) away from the electric telescopic rod (72). The outer sides of the first limiting block (81) and the second limiting block (82) are inserted into the second protective cover (62).