Magnetic compression high-filling-ratio composite master batch extrusion device
By using a magnetic compression high-filling-ratio composite masterbatch extrusion device, the carbon fibers are arranged in an orderly manner in the polymer material by utilizing magnetic field-flow field coupling technology. This solves the limitations of filling amount and processing efficiency in traditional extrusion processes, and achieves high filling ratio and high-efficiency processing.
Patent Information
- Application Number
- CN202520798407.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-25
AI Technical Summary
In traditional extrusion processes, the amount of carbon fiber in the polymer matrix is usually limited to less than 20%, and the disordered distribution leads to equipment blockage and high melt viscosity, making it difficult to achieve a high filling ratio and efficient processing.
A magnetic compression high-filling-ratio composite masterbatch extrusion device is adopted. By setting a magnetic field generating component outside the extrusion cylinder, magnetic field-flow field coupling technology is used to make magnetic materials arrange in an orderly manner in molten polymer materials, thereby achieving high filling ratio and uniform dispersion, reducing entanglement, and improving processing performance.
It achieves higher filling ratios and functionalization requirements in polymer materials, solves the problem of decreased material flowability, reduces equipment energy consumption and scrap rate, and improves granulation efficiency.
Smart Images
Figure CN223890430U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of polymer composite material processing equipment, and particularly relates to a magnetic compression high-filling-ratio composite master batch extrusion device. BACKGROUND
[0002] In a traditional extrusion process, the filling amount of carbon fibers in a polymer matrix is usually limited to below 20%, because the three-dimensional network structure formed by the disordered distribution of carbon fibers in the melt significantly increases the melt viscosity, the fiber and matrix interface friction is intensified under high filling, which leads to the rise of the screw torque of the equipment, and even causes the equipment to be blocked. Although the technology of controlling fiber orientation by a magnetic field is widely discussed in laboratory research, the development of industrial equipment still faces great challenges, and these problems jointly restrict the large-scale application of carbon fiber composites in high-tech industries.
[0003] Therefore, how to provide an innovative extrusion device capable of synchronously realizing high filling ratio, ordered fiber arrangement and efficient processing has become a technical problem to be solved. CONTENT OF THE INVENTION
[0004] Therefore, in order to overcome the shortcomings of the prior art, the application aims to provide a magnetic compression high-filling-ratio composite master batch extrusion device.
[0005] The application provides a magnetic compression high-filling-ratio composite master batch extrusion device, which comprises an extrusion cylinder, a screw, a feeding bin, a plurality of temperature control heaters, a magnetic field generating assembly and a shielding shell, the extrusion cylinder and the shielding shell are coaxially arranged outside the screw from inside to outside, the shielding shell comprises an inner shell and an outer shell coaxially arranged outside the inner shell, the plurality of temperature control heaters are arranged in the gap between the extrusion cylinder and the shielding shell, and the magnetic field generating assembly is arranged in the cavity between the inner shell and the outer shell.
[0006] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the temperature control heater is an independent heating coil, and the plurality of temperature control heaters are fixedly arranged outside the extrusion cylinder along the axial direction of the extrusion cylinder, each temperature control heater is connected with an external PCL controller and is controlled by the external PCL controller.
[0007] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the magnetic field generating assembly is an electromagnetic coil spirally distributed along the axis of the extrusion cylinder and integrally connected, and the magnetic field generating assembly is connected with an external PCL controller and is controlled by the external PCL controller.
[0008] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the inner shell of the shielding shell is made of a non-magnetic alloy material, so that the magnetic induction lines generated by the magnetic field generating assembly can pass through.
[0009] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the outer shell of the shielding shell is made of soft iron, which can block the magnetic field lines generated by the magnetic field generating assembly.
[0010] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, a plurality of reinforcing rings made of soft iron are arranged on the inner side of the inner shell in the axial direction, and a reinforcing gap is formed between adjacent two reinforcing rings, and the spacing of the reinforcing gap corresponds to the coil of each pitch of the magnetic field generating assembly.
[0011] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, a cooling cavity is arranged in the inner part of the outer shell, a cooling inlet channel is arranged at the top of one end of the outer shell, and a cooling outlet channel is arranged at the bottom of the other end of the outer shell, and the cooling inlet channel is communicated with the cooling outlet channel through the cooling cavity.
[0012] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, a wear-resistant ceramic coating is arranged on the inner wall of the extrusion barrel.
[0013] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the screw is composed of a feeding section, a compression section and a homogenizing section connected integrally, and the feeding section, the compression section and the homogenizing section adopt different screw parameters.
[0014] Optionally, in the magnetic compression high-filling-ratio composite master batch extrusion device, the feeding bin is arranged on one side of the extrusion barrel and communicated with the extrusion barrel.
[0015] The magnetic compression high-filling-ratio composite master batch extrusion device has the following beneficial technical effects:
[0016] 1. Through the "magnetic field-flow field coupling" dynamic regulation mechanism, the magnetic field generating assembly is arranged outside the extrusion barrel, and when the high polymer material containing magnetic materials such as metal-plated carbon fibers is extruded, the orientation of the magnetic powder in the molten high polymer material can be ordered, the magnetic materials can be ordered by magnetic field induction, the entanglement between the magnetic materials can be reduced, the filling amount can be effectively improved, the ordered arrangement of the magnetic materials can be realized by "magnetic compression", and higher filling ratio in the polymer matrix can be realized, and excellent processing performance can be achieved.
[0017] 2. Through the magnetic field regulation, the dispersion of the magnetic material in the polymer matrix is more uniform, the problem of decreased material flowability caused by high filling ratio is solved, the continuous formation of the approximately axial parallel magnetic field by the magnetic force lines of the reinforcing gap pushes and compresses the magnetic filler, so that the functional filler ratio and density of the polymer material are improved, and the functional requirements of high-precision electronic equipment are met.
[0018] 3. The magnetic field control process does not increase the melt viscosity of the material, the screw torque is stable, the granulation efficiency is improved compared with the traditional method, the scrap rate is reduced, and there is no need to add additional dispersants or modifiers. The adjustable magnetic field device can be adapted to different types and specifications of magnetic materials, such as carbon fibers of different lengths or different coating thicknesses. The equipment cost is low and the energy consumption is low. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural example diagram of a magnetic compression high-filling-ratio composite masterbatch extrusion apparatus according to an embodiment of this application;
[0021] Figure 2 This is a partial structural example of a magnetic compression high filler ratio composite masterbatch extrusion apparatus according to an embodiment of this application;
[0022] Figure 3 This is a partial structural example of a magnetic compression high filler ratio composite masterbatch extrusion apparatus according to an embodiment of this application;
[0023] Figure 4 This is a partial structural example of a magnetic compression high filler ratio composite masterbatch extrusion apparatus according to an embodiment of this application;
[0024] In the figure, 1-extrusion barrel, 2-screw, 3-feed hopper, 4-temperature control heater, 5-magnetic field generating component, 6-shielding shell, 61-inner shell, 62-outer shell, 63-reinforcing ring, 64-reinforcing notch, 65-cooling cavity, 66-cooling inlet channel, 67-cooling outlet channel. Detailed Implementation
[0025] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0026] It should be noted that, in the absence of conflict, the following embodiments and features can be combined with each other; and, based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0027] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this disclosure, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0028] Figure 1 This is a structural example diagram of a magnetic compression high-filling-ratio composite masterbatch extrusion apparatus according to an embodiment of this application, as shown below. Figure 1 As shown, in this embodiment, the magnetic compression high-filling-ratio composite masterbatch extrusion device includes an extrusion cylinder 1, a screw 2, a feed hopper 3, multiple temperature-controlled heaters 4, a magnetic field generating component 5, and a shielding shell 6. The extrusion cylinder 1 and the shielding shell 6 are coaxially arranged on the outside of the screw 2 from the inside to the outside. The shielding shell 6 includes an inner shell 61 and an outer shell 62 coaxially arranged on the outside of the inner shell 61. The multiple temperature-controlled heaters 4 are arranged in the gap between the extrusion cylinder 1 and the shielding shell 6. The magnetic field generating component 5 is arranged in the cavity between the inner shell 61 and the outer shell 62.
[0029] Figure 2 This is a partial structural example of a magnetic compression high-filling-ratio composite masterbatch extrusion apparatus according to an embodiment of this application, as shown in the figure. Figure 1 and Figure 2 As shown, in this embodiment, the temperature-controlled heater 4 is an independent heating coil, and multiple temperature-controlled heaters 4 are fixedly arranged on the outside of the extrusion cylinder 1 along the axial direction of the extrusion cylinder 1. Each temperature-controlled heater 4 is connected to an external PLC controller and controlled by the external PLC controller to achieve precise and independent temperature regulation. For example, in practical applications, the temperature-controlled heater 4 in this embodiment can be regulated with an accuracy of 0.5°C within the range of 80-350°C.
[0030] The magnetic field generating component 5 is an electromagnetic coil that is spirally distributed and integrally connected along the axis of the extrusion cylinder 1. In this embodiment, the magnetic field generating component 5 is connected to an external PLC controller and controlled by the external PLC controller to achieve precise control of the magnetic field strength.
[0031] Figure 3 This is a partial structural example of a magnetic compression high-filling-ratio composite masterbatch extrusion apparatus according to an embodiment of this application, as shown in the figure. Figure 1 , Figure 2 and Figure 3As shown, in this embodiment, the inner shell 61 of the shielding shell 6 is made of a non-magnetic alloy material, allowing the magnetic field lines generated by the magnetic field generating component 5 to pass through. The outer shell 62 of the shielding shell 6 is made of soft iron, which can block the magnetic field lines generated by the magnetic field generating component 5 from passing through. In this embodiment, multiple reinforcing rings 63 made of soft iron are arranged axially on the inner side of the inner shell 61. The reinforcing rings 63 can block the magnetic field lines generated by the magnetic field generating component 5 from passing through. A reinforcing gap 64 is formed between two adjacent reinforcing rings 63. The spacing of the reinforcing gaps 64 corresponds one-to-one with the coil of each pitch of the magnetic field generating component 5. The magnetic field lines emitted by the magnetic field generating component 5 are strengthened by passing through the reinforcing gaps 64 between two adjacent reinforcing rings 63. The magnetic field lines exposed from the multiple reinforcing gaps 64 are connected and arranged approximately parallel along the axial direction, thereby realizing the directional sorting and compression of magnetic powder in the extruded material.
[0032] Figure 4 This is a partial structural example of a magnetic compression high-filling-ratio composite masterbatch extrusion apparatus according to an embodiment of this application, as shown in the diagram. Figures 1 to 4 As shown, as an optional example, in this embodiment, an annular cooling cavity 65 is provided inside the outer shell 62. A cooling inlet channel 66 is provided at the top of one end of the outer shell 62, and a cooling outlet channel 67 is provided at the bottom of the other end of the outer shell 62. The cooling inlet channel 66 communicates with the cooling outlet channel 67 through the cooling cavity 65. When the magnetic compression high filler ratio composite masterbatch extrusion device of this embodiment is running, cooling fluid is introduced from the cooling inlet channel 66 into the cooling cavity 65 and flows out from the cooling outlet channel 67, thereby cooling the magnetic field generating component 5 inside the shielding shell 6 and controlling the temperature of the magnetic field generating component 5 to a safe state.
[0033] As an optional example, in this embodiment, a wear-resistant ceramic coating is provided on the inner wall of the extrusion barrel 1. In this embodiment, the screw 2 can be designed with a multi-segment structure according to the composition of the actual extruded material. For example, the screw 2 is composed of an integrally connected feeding section, compression section and homogenization section, and the feeding section, compression section and homogenization section adopt different screw parameters.
[0034] In this embodiment, the feed hopper 3 is located on one side of the extrusion cylinder 1 and is connected to the extrusion cylinder 1. In practical applications, a corresponding material control valve can also be installed in the feed hopper 3 to control the introduction of materials.
[0035] The magnetic compression high-filling-ratio composite masterbatch extrusion device of this embodiment, through comprehensive structural design, has the following beneficial technical effects in practical applications:
[0036] 1. Through a dynamic control mechanism of "magnetic field-flow field coupling", a magnetic field generating component is set on the outside of the extrusion cylinder. When extruding polymer materials containing magnetic materials, such as metal-plated carbon fibers, the magnetic powder can be oriented in an ordered manner in the molten polymer material. The magnetic field induces the ordered arrangement of magnetic materials, reduces the entanglement between magnetic materials, and effectively increases the filling amount. The ordered arrangement of magnetic materials is achieved through the "magnetic compression" effect, thereby achieving a higher filling ratio in the polymer matrix and exhibiting excellent processing performance.
[0037] 2. Through magnetic field control, the magnetic material is more evenly dispersed in the polymer matrix, which solves the problem of reduced material flowability caused by high filling ratio. The continuous formation of near-axially parallel magnetic field lines of the reinforced notch magnetic field lines pushes and compresses the magnetic filler, thereby improving the proportion and density of functional fillers in the polymer material and meeting the functional requirements of high-precision electronic equipment.
[0038] 3. The magnetic field control process does not increase the melt viscosity of the material, the screw torque is stable, the granulation efficiency is improved compared with the traditional method, the scrap rate is reduced, and there is no need to add additional dispersants or modifiers. The adjustable magnetic field device can be adapted to different types and specifications of magnetic materials, such as carbon fibers of different lengths or different coating thicknesses. The equipment cost is low and the energy consumption is low.
[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A magnetic compression high-filling-ratio composite masterbatch extrusion device, characterized in that, The magnetic compression high-filling-ratio composite masterbatch extrusion device includes an extrusion cylinder, a screw, a feed hopper, multiple temperature-controlled heaters, a magnetic field generating component, and a shielding shell. The extrusion cylinder and the shielding shell are coaxially arranged on the outside of the screw from the inside to the outside. The shielding shell includes an inner shell and an outer shell coaxially arranged on the outside of the inner shell. Multiple temperature-controlled heaters are arranged in the gap between the extrusion cylinder and the shielding shell. The magnetic field generating component is arranged in the cavity between the inner shell and the outer shell.
2. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, The temperature control heater is an independent heating coil. Multiple temperature control heaters are fixedly installed on the outside of the extrusion cylinder along the axial direction of the extrusion cylinder. Each temperature control heater is connected to an external PCL controller and is controlled by the external controller.
3. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, The magnetic field generating component consists of electromagnetic coils that are spirally distributed and integrally connected along the axis of the extrusion cylinder. The magnetic field generating component is connected to an external PLC controller and is controlled by the external PLC controller.
4. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, The inner shell of the shielding enclosure is made of a non-magnetic alloy material, which allows the magnetic field lines generated by the magnetic field generating component to pass through.
5. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 4, characterized in that, The outer shell of the shielding enclosure is made of soft iron, which can block the magnetic field lines generated by the magnetic field generating component from passing through.
6. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 5, characterized in that, Multiple reinforcing rings made of soft iron are arranged axially on the inner side of the inner shell. A reinforcing notch is formed between two adjacent reinforcing rings. The spacing of the reinforcing notch corresponds one-to-one with the coil of each pitch of the magnetic field generating component.
7. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 6, characterized in that, The outer casing has an annular cooling cavity inside. A cooling inlet channel is located at the top of one end of the outer casing, and a cooling outlet channel is located at the bottom of the other end of the outer casing. The cooling inlet channel is connected to the cooling outlet channel through the cooling cavity.
8. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, A wear-resistant ceramic coating is applied to the inner wall of the extrusion cylinder.
9. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, The screw consists of an integrally connected feeding section, compression section, and homogenization section, with different screw parameters used in the feeding section, compression section, and homogenization section.
10. The magnetic compression high-filling-ratio composite masterbatch extrusion device according to claim 1, characterized in that, The feed hopper is located on one side of the extrusion cylinder and is connected to the extrusion cylinder.