TPU material drying stirrer
By designing a multi-stage mixing structure and a hot air mechanism, the problem of uneven drying of TPU material was solved, achieving uniform drying and efficient processing of TPU material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI WEICHENGXIN NEW MATERIALS CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-14
AI Technical Summary
Existing TPU material drying equipment, when not sufficiently mixed, causes moisture to easily accumulate in the TPU material, resulting in uneven drying efficiency and affecting the stability of subsequent processing.
A TPU material drying mixer was designed, which adopts a multi-segment mixing structure, including a first mixing section and a second mixing section, forming an L-shaped zigzag conveying channel. The TPU material is heated and mixed by a hot air mechanism to ensure that the TPU material is fully mixed between each section and gradually removes moisture.
This improves the uniformity and efficiency of TPU material drying, avoids localized moisture accumulation, and ensures the normal progress of subsequent processing.
Smart Images
Figure CN224489682U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing and drying machines, and in particular to a TPU material drying and mixing machine. Background Technology
[0002] Thermoplastic elastomer (TPU) is a polymer material that combines the elasticity of rubber with the processing properties of plastics. In recent years, it has been widely used in various fields, mainly due to its recyclability, ease of processing, and environmental friendliness. Currently, TPU is widely used in the automotive industry, medical field, electronics, consumer goods, and 3D printing. Its technological development trends include improving its temperature resistance through blending modification, the development of bio-based and biodegradable TPU, conductive TPU, and low-energy production. Based on the above practical applications and modification processes of TPU, stirring and drying is a crucial step to remove moisture, solvents, or volatiles from the raw material, ensuring the stability of subsequent processing (such as extrusion and injection molding). Existing drying equipment for TPU materials includes vacuum dryers, double cone rotary dryers, paddle dryers, and fluidized bed dryers. Depending on the actual production and application of TPU materials, companies adapt and select various types of drying equipment.
[0003] However, due to limitations in the mixing mechanism of existing TPU material drying equipment, insufficient mixing during the drying process causes moisture in the TPU material to easily accumulate in areas that are difficult to mix. As a result, the drying efficiency of the TPU material in different parts of the system is uneven, which greatly reduces the drying efficiency. Utility Model Content
[0004] Therefore, it is necessary to provide a TPU material drying and mixing machine to address the technical problems of insufficient and uneven mixing in existing TPU drying and mixing equipment.
[0005] A TPU material drying and mixing machine includes a shell, a hot air mechanism, and a mixing mechanism. The hot air mechanism and the mixing mechanism are both installed in the shell. The hot air mechanism is installed on the top of the shell, and the output end of the hot air mechanism extends through into the interior of the shell. The mixing mechanism extends along the hot air duct output by the hot air mechanism.
[0006] The stirring mechanism is installed inside the housing and extends from the top to the bottom of the housing.
[0007] The mixing mechanism includes several mixing sections.
[0008] The mixing mechanism includes a first mixing section and a second mixing section. The first mixing section and the second mixing section are arranged sequentially from the top end of the shell to the bottom end, thereby forming a multi-segment mixing structure that extends along the hot air duct. Furthermore, while the first mixing section and the second mixing section are connected end to end, the first mixing section is inclined at the opposite angle to the second mixing section, thereby forming an L-shaped zigzag conveying channel.
[0009] In one embodiment, the housing is provided with an exhaust port located at the top of the housing.
[0010] In one embodiment, the housing is further provided with a feed inlet and a discharge outlet. The feed inlet is located at the top of one side wall of the housing, and the discharge outlet is located at the bottom of the same side wall of the housing, corresponding to the feed inlet.
[0011] In one embodiment, the input end of the first stirring section is matched with the feed inlet.
[0012] In one embodiment, the output end of the second stirring section is matched with the discharge port.
[0013] In one embodiment, the first stirring section includes a first stirrer and a first conveying pipe; the first conveying pipe is inclined at a preset angle at one end of the top of the housing, wherein the input end of the first conveying pipe corresponds to the feed inlet and extends to the outside of the housing, and the output end of the first conveying pipe extends inclined to the middle of the housing; the first stirrer is installed at the input end of the first conveying pipe, and the main body of the first stirrer extends along the first conveying pipe to the output end of the first conveying pipe.
[0014] In one embodiment, the first conveying pipe described above has a feeding port at one end extending from the inlet to the outside of the housing.
[0015] In one embodiment, the top side wall of the first conveying pipe is provided with a plurality of first vent holes.
[0016] In one embodiment, the second stirring section includes a second stirrer and a second conveying pipe; the second conveying pipe is inclined at a preset angle relative to the first conveying pipe at one end of the bottom of the housing, wherein the input end of the second conveying pipe is connected to the output end of the first conveying pipe, and the output end of the second conveying pipe extends inclinedly to the discharge port and extends to the outside of the housing; the second stirrer is installed at the input end of the second conveying pipe, and the main body of the second stirrer extends along the second conveying pipe to the output end of the second conveying pipe.
[0017] In one embodiment, the second conveying pipe described above has a discharge port at one end extending from the outlet to the outside of the housing.
[0018] In one embodiment, the top side wall of the second conveying pipe is provided with a plurality of second vent holes.
[0019] In one embodiment, the hot air mechanism includes a fan and a heating unit; the fan is disposed on the outer surface of the top wall of the housing, and the output end of the fan extends through the top wall of the housing into the interior of the housing; the heating unit is disposed on the inner surface of the top wall of the housing, and the heating unit is disposed at the output end of the fan.
[0020] In one embodiment, the output side of the heating unit is provided with an air supply duct, and the output section of the air supply duct is connected to the bottom end of the first conveying duct and the bottom end of the second conveying duct, respectively.
[0021] The aforementioned TPU material drying and mixing machine connects the first and second mixing sections end-to-end, with the first and second mixing sections inclined at opposite angles to each other, forming an L-shaped, zigzag-like conveying channel. In practical applications, TPU material can be fed into the first mixing section from the top for initial mixing and drying, reducing the liquid film thickness on the TPU surface and removing most of the moisture. Then, the TPU material is fed into the second mixing section from the bottom for a second step of mixing and drying, completely evaporating any remaining moisture. During this process, the thorough mixing of the TPU material by the first and second mixing sections significantly improves the uniformity of the drying process, preventing localized moisture accumulation. This not only increases the drying efficiency but also effectively improves the drying effect, facilitating subsequent processing steps. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of a TPU material drying and mixing machine in one embodiment;
[0023] Figure 2 This is a partial structural diagram of a TPU material drying and mixing machine in one embodiment;
[0024] Figure 3 This is a partial structural diagram of a TPU material drying and mixing machine in one embodiment;
[0025] Figure 4 This is a partial structural diagram of a TPU material drying and mixing machine in one embodiment. Detailed Implementation
[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0031] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0032] Please see Figures 1 to 4This utility model discloses a TPU material drying and mixing machine 1, which includes a housing 10, a hot air mechanism 20, and a mixing mechanism 30. Both the hot air mechanism 20 and the mixing mechanism 30 are installed on the housing 10. The hot air mechanism 20 is installed on the top of the housing 10, and its output end extends through into the interior of the housing 10. Thus, in actual operation, the hot air mechanism 20 inputs hot air of a preset temperature from the top of the housing 10 into the interior of the housing 10 to heat and dry the TPU material to be dried while it is being mixed inside the housing 10. The stirring mechanism 30 extends along the hot air duct output by the hot air mechanism 20. Specifically, the stirring mechanism 30 is installed inside the housing 10 and extends from the top to the bottom of the housing 10, so that the hot air output by the hot air mechanism 20 can be blown from the top to the bottom of the stirring mechanism 30. During this process, the TPU material is fully stirred by the stirring mechanism 30. At the same time, the hot air causes the liquid film on the surface of the TPU material to evaporate rapidly, thereby greatly improving the drying efficiency of the TPU material drying mixer 1 of this utility model. Based on the above configuration, more specifically, the stirring mechanism 30 includes several stirring sections. In this embodiment, the stirring mechanism 30 includes a first stirring section 31 and a second stirring section 32. The first stirring section 31 and the second stirring section 32 are arranged sequentially from the top end to the bottom end inside the housing 10, thereby forming a multi-segment stirring structure that extends along the hot air duct. Furthermore, while the first stirring section 31 and the second stirring section 32 are connected end to end, the first stirring section 31 is inclined at opposite angles to the second stirring section 32, thereby forming a conveying channel extending in an L-shape. Based on the above structure, in practical applications, TPU material can be fed into the first stirring section 31 through the top of the first stirring section 31 for preliminary stirring and drying to reduce the thickness of the liquid film on the surface of the TPU material and remove most of the moisture. Then, the TPU material is fed into the second stirring section 32 through the bottom of the first stirring section 31 for a second step of stirring and drying to completely evaporate the remaining moisture on the surface of the TPU material. During this process, the full stirring of the TPU material by the first stirring section 31 and the second stirring section 32 greatly improves the uniformity of the TPU material during the drying process, avoids local accumulation of moisture in the TPU material, improves the drying efficiency of the TPU material, effectively improves the drying effect of the TPU material, and is more conducive to the normal operation of subsequent processing steps.
[0033] Furthermore, the housing 10 is provided with an exhaust port a, which is located at the top of the housing 10. Thus, after the high-temperature hot air blown into the housing 10 by the hot air mechanism 20 dries the TPU material, the low-temperature hot air carrying water vapor rises inside the housing 10 and is finally discharged to the outside of the housing 10 through the exhaust port a.
[0034] Furthermore, the housing 10 is also provided with an inlet b and an outlet c. The inlet b is located at the top of one side wall of the housing 10; the outlet c is located at the bottom of the same side wall of the housing 10, corresponding to the inlet b. Correspondingly, the input end of the first stirring section 31 is matched with the inlet b; the output end of the second stirring section 32 is matched with the outlet c. Thus, TPU material can be input into the input end of the first stirring section 31 through the inlet b. After the TPU material has been stirred and dried twice, the dried TPU material can be discharged from the output end of the second stirring section 32 through the outlet c.
[0035] Furthermore, the first stirring section 31 includes a first stirrer 311 and a first conveying pipe 312; the first conveying pipe 312 is inclined at a preset angle at one end of the top of the housing 10, wherein the input end of the first conveying pipe 312 corresponds to and extends to the outside of the housing 10, and the output end of the first conveying pipe 312 extends inclined to the middle of the housing 10; the first stirrer 311 is installed at the input end of the first conveying pipe 312, and the main body of the first stirrer 311 extends along the first conveying pipe 312 to the output end of the first conveying pipe 312. In one embodiment, a feeding port d is provided at one end of the first conveying pipe 312 extending to the outside of the housing 10 through the feeding port b. In another embodiment, a plurality of first vent holes e are provided on the top side wall of the first conveying pipe 312. Based on this, TPU material can be input into the first conveying pipe 312 through the feeding port d and conveyed along the first conveying pipe 312. During the conveying process, the first agitator 311 fully agitates the TPU material inside the first conveying pipe 312, and the high-temperature hot air blown out by the hot air mechanism 20 heats the first conveying pipe 312. The moisture evaporated from the surface of the TPU material is discharged through several first exhaust holes e and then dispersed to the outside of the shell 10 through the exhaust port a, thereby completing the initial drying process of the TPU material.
[0036] Furthermore, the second stirring section 32 includes a second stirrer 321 and a second conveying pipe 322. The second conveying pipe 322 is inclined at a preset angle relative to the first conveying pipe 312 at one end of the bottom of the housing 10. The input end of the second conveying pipe 322 is connected to the output end of the first conveying pipe 312, and the output end of the second conveying pipe 322 extends obliquely to the discharge port c and extends to the outside of the housing 10. The second stirrer 321 is installed at the input end of the second conveying pipe 322, and the main body of the second stirrer 321 extends along the second conveying pipe 322 to the output end of the second conveying pipe 322. In one embodiment, a discharge port f is provided at the end of the second conveying pipe 322 that extends to the outside of the housing 10 through the discharge port c. In another embodiment, a plurality of second vent holes g are provided on the top side wall of the second conveying pipe 322. Based on this, the TPU material enters the second conveying pipe 322 and is conveyed along the second conveying pipe 322. During the conveying process, the second agitator 321 performs secondary and thorough mixing of the TPU material inside the second conveying pipe 322. The high-temperature hot air blown out by the hot air heats the second conveying pipe 322. The remaining moisture evaporated from the surface of the TPU material is discharged through several second exhaust holes g, and then escapes to the outside of the shell 10 through exhaust port a, and finally is discharged through discharge port f.
[0037] Furthermore, the hot air mechanism 20 includes a fan 21 and a heating unit 22; the fan 21 is disposed on the outer surface of the top wall of the housing 10, and the output end of the fan 21 extends through the top wall of the housing 10 into the interior of the housing 10; the heating unit 22 is disposed on the inner surface of the top wall of the housing 10, and the heating unit 22 is disposed at the output end of the fan 21. Thus, the fan 21 can blow fresh air from outside into the interior of the housing 10, and then the fresh air is heated to a preset temperature by the heating unit 22 to form high-temperature hot air which continues to be blown toward the bottom of the housing 10, thereby completing the heating of the first stirring section 31 and the second stirring section 32.
[0038] Furthermore, in one embodiment, an air supply duct (not shown) is provided on the output side of the heating unit 22. The output section of the air supply duct is connected to the bottom end of the first conveying duct 312 and the bottom end of the second conveying duct 322, respectively. This allows the high-temperature hot air output by the heating unit 22 to be delivered to the inside of the first conveying duct 312 and the second conveying duct 322 through the air supply duct. Then, under the action of the rising characteristics of the hot air itself, it flows from the bottom end to the top end of the corresponding conveying duct, thereby directly heating the TPU material and further improving the drying efficiency.
[0039] In summary, the TPU material drying and mixing machine disclosed in this utility model sets the first and second mixing sections to be connected end-to-end, with the first and second mixing sections inclined at opposite angles to each other, thus forming an L-shaped zigzag conveying channel. In practical applications, TPU material can be fed into the first mixing section from the top for initial mixing and drying, reducing the liquid film thickness on the TPU material surface and removing most of the moisture. Then, the TPU material is fed into the second mixing section from the bottom for a second step of mixing and drying, completely evaporating any remaining moisture. During this process, the thorough mixing of the TPU material by the first and second mixing sections greatly improves the uniformity of the TPU material during drying, preventing localized moisture accumulation. This not only improves the drying efficiency of the TPU material but also effectively enhances the drying effect, facilitating the smooth operation of subsequent processing steps.
[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A TPU material drying and mixing machine, characterized in that, include: The housing, hot air mechanism, and stirring mechanism are all installed in the housing. The hot air mechanism is installed on the top of the housing, and its output end extends through into the interior of the housing. The stirring mechanism extends along the hot air duct output by the hot air mechanism. The stirring mechanism is installed inside the housing and extends from the top to the bottom of the housing; The mixing mechanism includes a first mixing section and a second mixing section. The first mixing section and the second mixing section are arranged sequentially from the top end of the shell to the bottom end, thereby forming a multi-segment mixing structure that extends along the hot air duct. Furthermore, while the first mixing section and the second mixing section are connected end to end, the first mixing section is inclined at the opposite angle to the second mixing section, thereby forming an L-shaped zigzag conveying channel.
2. The TPU material drying and mixing machine according to claim 1, characterized in that, The housing is provided with an exhaust port, which is located at the top of the housing.
3. The TPU material drying and mixing machine according to claim 2, characterized in that, The shell is also provided with a feed inlet and a discharge outlet. The feed inlet is located at the top of one side wall of the shell, and the discharge outlet is located at the bottom of the same side wall of the shell, corresponding to the feed inlet.
4. The TPU material drying and mixing machine according to claim 3, characterized in that, The input end of the first mixing section is matched with the feed inlet.
5. The TPU material drying and mixing machine according to claim 4, characterized in that, The output end of the second mixing section is matched with the discharge port.
6. The TPU material drying and mixing machine according to claim 5, characterized in that, The first mixing section includes a first agitator and a first conveying pipe; the first conveying pipe is inclined at a preset angle at one end of the top of the housing, wherein the input end of the first conveying pipe corresponds to the feed inlet and extends to the outside of the housing, and the output end of the first conveying pipe extends inclined to the middle of the housing; the first agitator is installed at the input end of the first conveying pipe, and the main body of the first agitator extends along the first conveying pipe to the output end of the first conveying pipe.
7. The TPU material drying and mixing machine according to claim 6, characterized in that, The top side wall of the first conveying pipe is provided with several first exhaust holes.
8. The TPU material drying and mixing machine according to claim 7, characterized in that, The second mixing section includes a second agitator and a second conveying pipe; the second conveying pipe is inclined at a preset angle relative to the first conveying pipe at one end of the bottom of the housing, wherein the input end of the second conveying pipe is connected to the output end of the first conveying pipe, and the output end of the second conveying pipe extends inclinedly to the discharge port and extends to the outside of the housing; the second agitator is installed at the input end of the second conveying pipe, and the main body of the second agitator extends along the second conveying pipe to the output end of the second conveying pipe.
9. The TPU material drying and mixing machine according to claim 8, characterized in that, The top side wall of the second conveying pipe is provided with several second exhaust holes.
10. The TPU material drying and mixing machine according to claim 9, characterized in that, The hot air mechanism includes a fan and a heating unit; the fan is located on the outer surface of the top wall of the housing, and the output end of the fan extends through the top wall of the housing into the interior of the housing; the heating unit is located on the inner surface of the top wall of the housing, and the heating unit is located at the output end of the fan.