A high-strength foamed material device of modified polystyrene
By designing a twin-screw mixing system and a multi-stage injection assembly, the problem of poor uniformity in modifier mixing was solved, achieving uniform dispersion of the modifier in the resin, improving material strength and modification efficiency, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI QIANTAI NEW MATERIALS CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-12
AI Technical Summary
In traditional foaming material equipment, the mixing uniformity of modifiers is poor, and the single-point addition of modifiers affects the modification effect, making it difficult to adjust the injection amount in real time according to the molten state of the resin.
A twin-screw mixing system is adopted, in which the first and second rotating shafts are driven by the transmission component to rotate the mixing frame in the same direction. Combined with multiple injection components, the modifier is injected from different heights to achieve layered injection and strong shear mixing of the modifier.
This improved the dispersion of the modifier in the resin, meeting the requirements of high-strength applications, reduced the agglomeration of the modifier, and lowered the raw material cost.
Smart Images

Figure CN224348224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polystyrene foaming material technology, and in particular to a device for producing high-strength modified polystyrene foaming material. Background Technology
[0002] Polystyrene is a colorless and transparent thermoplastic. Expanded polystyrene, commonly known as Styrofoam, has a glass transition temperature above 100 degrees Celsius. Therefore, it is often used to make various disposable containers that need to withstand the temperature of boiling water, as well as disposable foam lunch boxes, etc.
[0003] The high-strength modified polystyrene foam material device is a foaming equipment prepared using a special process. It is mainly used to produce polystyrene foam materials that combine high strength and flame retardant properties. This device significantly improves the mechanical properties and flame retardant characteristics of the material by improving foaming technology, such as supercritical carbon dioxide foaming, and combining polystyrene with engineering plastics such as polyphenylene ether for blending and modification.
[0004] Traditional foaming material equipment often uses a single screw mixer for raw material mixing, resulting in poor uniformity of mixing between the modifier and polystyrene resin. This leads to uneven strength distribution of the foamed material. In addition, the modifier is usually added at a single point, making it difficult to adjust the injection amount in real time according to the molten state of the resin, which affects the modification effect.
[0005] Therefore, it is necessary to provide a high-strength modified polystyrene foaming material device to solve the above-mentioned technical problems. Utility Model Content
[0006] This invention provides a device for producing high-strength modified polystyrene foam material, which solves the problems of poor mixing uniformity of single-screw mixers and the effect of adding modifiers at a single point on the modification effect.
[0007] To solve the above-mentioned technical problems, the high-strength modified polystyrene foaming material device provided by this utility model includes: an adjustable base frame;
[0008] A mixing tank is mounted on top of an adjustable base frame via a support frame. A top cover is mounted on the top of the mixing tank. A transmission assembly is mounted on the top of the top cover. A drive assembly is mounted on the top of the transmission assembly. A first rotating shaft and a second rotating shaft are mounted on the bottom of the transmission assembly. A first stirring frame is mounted on the outer surface of the first rotating shaft. A second stirring frame is mounted on the outer surface of the second rotating shaft. A feed pipe is mounted on the top of the top cover.
[0009] A modifier storage tank is installed on the top of the adjustable base frame near one side. Multiple conveying structures are installed on one side of the modifier storage tank. Each conveying structure has an injection pipe installed at its outlet via a flow meter. A first injection assembly, a second injection assembly, and a third injection assembly are installed sequentially from top to bottom on the outer surface of the mixing tank. The first injection assembly includes a three-way connector, two conveying pipes, a solenoid valve, a connector, and an injection head. The two conveying pipes are used to connect the solenoid valve and the three-way connector. The connector is used to install the injection head on the other end of the solenoid valve.
[0010] There are multiple first and second mixing racks, the specific shape of which depends on the requirements. The first injection assembly, the second injection assembly, and the third injection assembly are respectively connected to multiple injection pipes for injecting the modifier into the interior of the mixing tank from different positions. A valve is installed at the top of the feed pipe.
[0011] Preferably, the adjustable base includes a base plate, a mounting structure, and an adjusting structure, wherein the mounting structure is used to mount the adjusting structure on the bottom of the base plate;
[0012] The adjustment structure and the installation structure are connected by threads.
[0013] Preferably, a monitoring component is mounted on the top of the top cover, the monitoring component comprising a fixed base and monitoring parts;
[0014] The monitoring components can monitor the temperature and pressure values inside the mixing tank.
[0015] Preferably, a discharge pipe with a valve is installed at the bottom of the mixing tank, and the drive assembly includes a protective shell, a drive component, and an angle sensor;
[0016] The output end of the drive component is connected to the second transmission component.
[0017] Preferably, the transmission assembly includes a mounting housing, a first transmission component, a connecting component, and a second transmission component, wherein the first transmission component is used to connect with a first rotating shaft, and the second transmission component is used to connect with a second rotating shaft;
[0018] The connecting component engages with the first transmission component and the second transmission component.
[0019] Preferably, a control box with a door is installed on the top of the adjusting base, and an operation panel is installed on one side of the control box;
[0020] The control box contains power switches and controllers for operating the equipment.
[0021] Compared with related technologies, the high-strength modified polystyrene foaming material device provided by this utility model has the following beneficial effects:
[0022] This invention provides a device for producing high-strength modified polystyrene foam. To improve material strength uniformity and optimize modification efficiency, a transmission assembly provides rotational driving force to the first and second rotating shafts, causing them to drive the first and second stirring frames to rotate in the same direction. This allows the meshing action of the first and second stirring frames to generate a strong shearing and stirring effect, ensuring that the polystyrene resin and the modifier are fully in contact and mixed in the molten state. Simultaneously, a first, second, and third injection assembly are used to inject the modifier from different heights on the outer surface of the mixing tank, improving modifier utilization. The three conveying structures—the first, second, and third injection assemblies—allow for layered injection of the modifier. This design, through the strong shear mixing of the twin-screw, enhances the dispersion of the modifier in the resin, meeting the performance requirements of high-strength applications. The multi-stage injection method reduces modifier agglomeration, improves modifier utilization, and lowers raw material costs. Attached Figure Description
[0023] Figure 1 A schematic diagram of a preferred embodiment of the high-strength modified polystyrene foaming material device provided by this utility model;
[0024] Figure 2 A structural schematic diagram of the monitoring component is provided for this utility model;
[0025] Figure 3 This invention provides a structural schematic diagram of the first stirring rack.
[0026] Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown;
[0027] Figure 5 Provided for this utility model Figure 3 An enlarged view of point B shown;
[0028] Figure 6 A schematic diagram of the drive component is provided for this utility model.
[0029] The diagram labels are as follows: 1. Adjustable base frame; 101. Base plate; 102. Mounting structure; 103. Adjustable structure; 2. Support frame; 3. Mixing tank; 4. Modifier storage box; 5. Conveying structure; 6. Flow meter; 7. Injection pipe; 8. Feed pipe; 9. Drive assembly; 901. Protective shell; 902. Drive component; 903. Angle sensor; 10. Top cover; 11. Transmission assembly; 111. Mounting shell; 112. First transmission component; 113. Connecting component; 114. Second transmission component. Components, 12. Monitoring component, 121. Fixed base, 122. Monitoring component, 13. First injection component, 131. T-joint, 132. Delivery pipe, 133. Solenoid valve, 134. Connecting joint, 135. Injection head, 14. Second injection component, 15. Third injection component, 16. Valve, 17. Discharge pipe, 18. Control panel, 19. Control box, 20. Box door, 21. First stirring rack, 22. First rotating shaft, 23. Second rotating shaft, 24. Second stirring rack. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of the high-strength modified polystyrene foaming material device provided by this utility model; Figure 2 A structural schematic diagram of the monitoring component is provided for this utility model; Figure 3 This invention provides a structural schematic diagram of the first stirring rack. Figure 4 Provided for this utility model Figure 3 An enlarged view of point A shown;
[0032] Figure 5 Provided for this utility model Figure 3 An enlarged view of point B shown; Figure 6 A structural schematic diagram of the driving component is provided for this utility model. The high-strength modified polystyrene foam material device includes: an adjusting base frame 1;
[0033] A mixing tank 3 is mounted on top of an adjusting base frame 1 via a support frame 2. A top cover 10 is mounted on the top of the mixing tank 3. A transmission assembly 11 is mounted on the top of the top cover 10. A drive assembly 9 is mounted on the top of the transmission assembly 11. A first rotating shaft 22 and a second rotating shaft 23 are mounted on the bottom of the transmission assembly 11. A first stirring frame 21 is mounted on the outer surface of the first rotating shaft 22. A second stirring frame 24 is mounted on the outer surface of the second rotating shaft 23. A feed pipe 8 is mounted on the top of the top cover 10.
[0034] Modifier storage tank 4 is installed on the top of the adjusting base frame 1 near one side. Multiple conveying structures 5 are installed on one side of the modifier storage tank 4. Each conveying structure 5 has an injection pipe 7 installed at its outlet through a flow meter 6. The outer surface of the mixing tank 3 is sequentially equipped with a first injection assembly 13, a second injection assembly 14, and a third injection assembly 15 from top to bottom. The first injection assembly 13 includes a three-way connector 131, two conveying pipes 132, a solenoid valve 133, a connector 134, and an injection head 135. The two conveying pipes 132 are used to connect the solenoid valve 133 and the three-way connector 131. The connector 134 is used to install the injection head 135 on the other end of the solenoid valve 133.
[0035] There are multiple first stirring racks 21 and second stirring racks 24, and their specific shapes are determined according to requirements. The first injection component 13, the second injection component 14 and the third injection component 15 are respectively connected to multiple injection pipes 7 for injecting the modifier into the interior of the mixing tank 3 from different positions. A valve is installed at the top of the feed pipe 8, and the flow meter 6 can count the amount of injected modifier. The injection head 135 is inserted into the interior of the mixing tank 3.
[0036] The adjustable base frame 1 includes a base plate 101, a mounting structure 102 and an adjusting structure 103. The mounting structure 102 is used to mount the adjusting structure 103 on the bottom of the base plate 101.
[0037] The adjusting structure 103 and the mounting structure 102 are threaded together and used to adjust the stability of the base plate 101.
[0038] A monitoring component 12 is installed on the top of the top cover 10. The monitoring component 12 includes a fixed base 121 and a monitoring component 122.
[0039] The monitoring component 122 can monitor the temperature and pressure values inside the mixing tank 3.
[0040] The bottom of the mixing tank 3 is equipped with a discharge pipe 17 with a valve 16, and the drive assembly 9 includes a protective shell 901, a drive component 902 and an angle sensor 903.
[0041] The output end of the drive component 902 is connected to the second transmission component 114, and the angle sensor 903, in conjunction with the drive component 902, can precisely control the rotation speed.
[0042] The transmission assembly 11 includes a mounting shell 111, a first transmission component 112, a connecting component 113, and a second transmission component 114. The first transmission component 112 is used to connect with the first rotating shaft 22, and the second transmission component 114 is used to connect with the second rotating shaft 23.
[0043] The connecting component 113 is engaged with the first transmission component 112 and the second transmission component 114 to facilitate transmission.
[0044] A control box 19 with a door 20 is installed on the top of the adjustable base frame 1, and an operation panel 18 is installed on one side of the control box 19;
[0045] The door 20 is equipped with a lock, and the control box 19 contains a power switch and a controller for controlling the operation of the equipment.
[0046] The working principle of the high-strength modified polystyrene foaming material device provided by this utility model is as follows:
[0047] A transmission assembly 11 provides rotational driving force to the first rotating shaft 22 and the second rotating shaft 23, causing the first rotating shaft 22 and the second rotating shaft 23 to drive the first stirring frame 21 and the second stirring frame 24 to rotate in the same direction. This allows the meshing action of the first stirring frame 21 and the second stirring frame 24 to produce a strong shearing and stirring effect, ensuring that the polystyrene resin in the molten state fully contacts and mixes with the modifier. Simultaneously, the use of the first injection assembly 13, the second injection assembly 14, and the third injection assembly 15 allows the modifier to be injected from different heights on the outer surface of the mixing tank 3, improving the utilization rate of the modifier. The three conveying structures 5 inject the modifier into the first injection component 13, the second injection component 14, and the third injection component 15, respectively, so that the modifier can be injected in layers. In actual use, the raw material is first injected into the interior of the mixing tank 3 through the feed pipe 8. Then, the drive component 9 is started to drive the first stirring frame 21 and the second stirring frame 24 through the transmission component 11 to fully stir the raw material. When needed, the conveying structures 5 at the corresponding positions are started in sequence to inject the modifier into the injection components at the corresponding heights, and the modifier is injected into the interior of the mixing tank 3. The stirring frame is used to make the modifier evenly mixed with the raw material.
[0048] Compared with related technologies, the high-strength modified polystyrene foaming material device provided by this utility model has the following beneficial effects:
[0049] To improve material strength uniformity and optimize modification efficiency, a transmission assembly 11 provides rotational driving force to the first rotating shaft 22 and the second rotating shaft 23, allowing the first rotating shaft 22 and the second rotating shaft 23 to drive the first stirring frame 21 and the second stirring frame 24 to rotate in the same direction. This allows the meshing action of the first stirring frame 21 and the second stirring frame 24 to generate a strong shearing and stirring effect, ensuring that the polystyrene resin and the modifier are fully in contact and mixed in the molten state. At the same time, the first injection assembly 13, the second injection assembly 14, and the third injection assembly 15 are used to inject the modifier from different heights on the outer surface of the mixing tank 3, improving the utilization rate of the modifier. Furthermore, three conveying structures 5 are used to inject the modifier into the first injection assembly 13, the second injection assembly 14, and the third injection assembly 15 respectively, thus enabling layered injection of the modifier. Through the strong shear mixing of the twin screws in this design, the dispersion of the modifier in the resin is improved, meeting the performance requirements of high-strength application scenarios. The multi-stage injection method reduces the agglomeration of the modifier, improves the utilization rate of the modifier, and reduces the cost of raw materials.
[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A device for producing high-strength modified polystyrene foam material, characterized in that, include: Adjust the base frame; A mixing tank is mounted on top of an adjustable base frame via a support frame. A top cover is mounted on the top of the mixing tank. A transmission assembly is mounted on the top of the top cover. A drive assembly is mounted on the top of the transmission assembly. A first rotating shaft and a second rotating shaft are mounted on the bottom of the transmission assembly. A first stirring frame is mounted on the outer surface of the first rotating shaft. A second stirring frame is mounted on the outer surface of the second rotating shaft. A feed pipe is mounted on the top of the top cover. A modifier storage tank is installed on the top of the adjusting base frame near one side. Multiple conveying structures are installed on one side of the modifier storage tank. Each conveying structure has an injection pipe installed at its outlet via a flow meter. A first injection assembly, a second injection assembly, and a third injection assembly are installed sequentially from top to bottom on the outer surface of the mixing tank. The first injection assembly includes a three-way connector, two conveying pipes, a solenoid valve, a connector, and an injection head. The two conveying pipes are used to connect the solenoid valve and the three-way connector. The connector is used to install the injection head on the other end of the solenoid valve.
2. The apparatus for producing high-strength modified polystyrene foam material according to claim 1, characterized in that, The adjustable base includes a base plate, a mounting structure, and an adjusting structure. The mounting structure is used to install the adjusting structure on the bottom of the base plate.
3. The apparatus for producing high-strength modified polystyrene foam material according to claim 1, characterized in that, A monitoring component is mounted on the top of the cover, and the monitoring component includes a fixed base and monitoring parts.
4. The apparatus for producing high-strength modified polystyrene foam material according to claim 1, characterized in that, The bottom of the mixing tank is equipped with a discharge pipe with a valve, and the drive assembly includes a protective shell, a drive component, and an angle sensor.
5. The apparatus for producing high-strength modified polystyrene foam material according to claim 1, characterized in that, The transmission assembly includes a mounting housing, a first transmission component, a connecting component, and a second transmission component. The first transmission component is used to connect with a first rotating shaft, and the second transmission component is used to connect with a second rotating shaft.
6. The apparatus for producing high-strength modified polystyrene foam material according to claim 1, characterized in that, A control box with a door is installed on the top of the adjustable base frame, and an operation panel is installed on one side of the control box.