Mixing device for TPU production
By introducing horizontal and vertical mixing mechanisms into the mixing device for TPU production and combining the twisted dragon pattern structure, the problems of low mixing efficiency and unstable discharge in the existing device are solved, and uniform mixing and stable transport of materials are achieved. And prevent materials from cooling.
Patent Information
- Application Number
- CN202420456289.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing TPU production agitator rotates and stirs in the horizontal direction, and the longitudinal stirring cannot be achieved, resulting in low mixing efficiency and high material viscosity, resulting in unstable discharge and easy blockage.
A mixing device including a horizontal and vertical stirring mechanism is designed, and the first rotating shaft and the stirring plate are driven by a first motor for horizontal stirring, and the second rotating shaft and the plurality of stirring plates are driven by a second motor for vertical stirring. At the same time, the third motor and the twisted dragon pattern are used to ensure stable material transport in the discharge pipe.
The uniform mixing and stable discharge of materials are achieved, avoiding clogging problems, and preventing premature cooling of materials through heating layers and temperature controllers.
Smart Images
Figure CN222135526U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of TPU production, in particular to a mixing device for TPU production. Background Art
[0002] Thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber, abbreviated as TPU, is a (AB)n type block linear polymer. A is a polyester or polyether with a high molecular weight (1000-6000), B is a diol containing 2-12 straight-chain carbon atoms, and the chemical structure between the AB segments is diisocyanate. Thermoplastic polyurethane rubber is cross-linked by intermolecular hydrogen bonds or slightly cross-linked between macromolecular chains. As the temperature rises or falls, these two cross-linking structures are reversible. In the molten state or solution state, the intermolecular force is weakened, and after cooling or solvent evaporation, there is a strong intermolecular force connecting together, restoring the original solid performance. In the production of TPU, the materials of each component need to be transported to the mixing device for mixing, so that the materials are mixed evenly before proceeding to the next step.
[0003] The existing stirring device, whether it is a three-blade or a two-blade stirrer, rotates in the horizontal direction for stirring, and is unable to stir and mix the materials longitudinally. The single horizontal stirring has low mixing efficiency and is not uniform enough. Due to the high viscosity of TPU materials, the discharge of materials from the bottom discharge port of the existing stirring device is often not particularly stable and is prone to blockage. Therefore, a mixing device for TPU production is proposed to address the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a mixing device for TPU production to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A mixing device for TPU production comprises a shell, a feed pipe is provided at the top of the shell, a feed port is fixedly connected to the top of the feed pipe, a first motor is fixedly connected to the center position of the top of the shell, a heating layer is fixedly connected to the inside of the shell, a temperature controller is fixedly connected to the inner side of the heating layer, a first rotating shaft penetrating the shell and the heating layer is fixedly connected to the bottom end of the first motor, a first stirring plate is fixedly connected to the outer side of the first rotating shaft, a discharge pipe is fixedly connected to the bottom end of the shell, a third motor is fixedly connected to the outer side of the discharge pipe, a third rotating shaft penetrating the discharge pipe is fixedly connected to the right side of the third motor, a spiral pattern is fixedly connected to the outer side of the third rotating shaft, a second motor is fixedly connected to the outer side of the shell, a second rotating shaft penetrating the shell and the heating layer is fixedly connected to the right side of the second motor, and a second stirring plate is fixedly connected to the outer side of the second rotating shaft.
[0007] Preferably, the second motor and the second rotating shaft form a group, with four groups in total, and are symmetrical about the center of the housing.
[0008] Preferably, the number of the second stirring plates is twelve, and they are evenly distributed on the surface of the second rotating shaft.
[0009] Preferably, the length of the first stirring plate is slightly smaller than the diameter of the inner wall of the heating layer.
[0010] Preferably, the outer side of the auger pattern is tightly fitted with the inner wall of the discharge pipe.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. In the utility model, by setting the first motor, the first rotating shaft, the first stirring plate, the second motor, the second rotating shaft and the second stirring plate and other components, the first motor first drives the first rotating shaft and the first stirring plate to rotate, thereby realizing horizontal stirring of the material. While stirring horizontally, the second motor drives the second rotating shaft and the plurality of second stirring plates to stir vertically, thereby solving the problem that the existing stirring device, whether it is a three-leaf or two-leaf stirrer, rotates in the horizontal direction for stirring, cannot stir and mix the material longitudinally, and stirs in a single horizontal direction, resulting in low mixing efficiency and uneven mixing;
[0013] 2. In the utility model, the discharge pipe, the third motor, the third rotating shaft and the auger pattern are arranged, and the third motor drives the third rotating shaft and the auger pattern to rotate inside the discharge pipe. Under the action of the auger pattern, the material is stably transported outward to prevent blockage, thereby solving the problem of the existing stirring device that the discharge of the material from the bottom discharge port of the stirring device is often not particularly stable due to the high viscosity of the TPU material, and is prone to blockage;
[0014] 3. In the utility model, by providing components such as a heating layer and a temperature controller, the temperature controller issues instructions to control the heating layer to heat and keep the internal materials warm, thereby preventing the TPU material from cooling down too early and being unable to be stirred. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in top view.
[0017] In the figure: 1. Shell; 2. Feed pipe; 3. Feed port; 4. First motor; 5. First rotating shaft; 6. First stirring plate; 7. Heating layer; 8. Second motor; 9. Second rotating shaft; 10. Second stirring plate; 11. Temperature controller; 12. Discharge pipe; 13. Third motor; 14. Third rotating shaft; 15. Auger pattern. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.
[0021] See also Figure 1-2 , the utility model provides a technical solution:
[0022] A mixing device for TPU production comprises an outer shell 1, a feed pipe 2 is provided at the top of the outer shell 1, a feed port 3 is fixedly connected to the top of the feed pipe 2, a first motor 4 is fixedly connected to the center position of the top of the outer shell 1, a heating layer 7 is fixedly connected to the inside of the outer shell 1, a temperature controller 11 is fixedly connected to the inner side of the heating layer 7, a first rotating shaft 5 is fixedly connected to the bottom end of the first motor 4 and a first stirring plate 6 is fixedly connected to the outer side of the first rotating shaft 5, a discharge pipe 12 is fixedly connected to the bottom end of the outer shell 1, a third motor 13 is fixedly connected to the outer side of the discharge pipe 12, a third rotating shaft 14 is fixedly connected to the right side of the third motor 13 and a spiral pattern 15 is fixedly connected to the outer side of the third rotating shaft 14, a second motor 8 is fixedly connected to the outer side of the outer shell 1, a second rotating shaft 9 is fixedly connected to the right side of the second motor 8 and a second stirring plate 10 is fixedly connected to the outer side of the second rotating shaft 9.
[0023] The second motor 8 and the second rotating shaft 9 are a group, with a total of four groups, and are symmetrical about the center of the shell 1. The number of second stirring plates 10 is twelve, and they are evenly distributed on the surface of the second rotating shaft 9. The length of the first stirring plate 6 is slightly smaller than the diameter of the inner wall of the heating layer 7. The outer side of the auger pattern 15 is tightly fitted with the inner wall of the discharge pipe 12.
[0024] Working process: when TPU material mixing and stirring is required, the equipment is powered by an external power supply, and the temperature controller 11 is the prior art. First, TPU material is poured into the shell 1 through the feed port 3 and the feed pipe 2, and then the first motor 4 drives the first rotating shaft 5 and the first stirring plate 6 to rotate, thereby realizing horizontal stirring of the material. While stirring horizontally, the second motor 8 drives the second rotating shaft 9 and multiple second stirring plates 10 to perform vertical stirring. During the stirring process, the temperature controller 11 will send a heating instruction to the heating layer 7 to ensure the fluidity of the material during stirring. After the material is evenly stirred, under the action of gravity, the material will flow into the discharge pipe 12 at the bottom, and then the third motor 13 drives the third rotating shaft 14 and the auger pattern 15 to rotate inside the discharge pipe 12 to form an auger structure, and under the action of the auger pattern 15, the material is stably transported outward.
[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mixing device for TPU production, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a feed pipe (2), the top of the feed pipe (2) is fixedly connected to a feed port (3), the center of the top of the housing (1) is fixedly connected to a first motor (4), the interior of the housing (1) is fixedly connected to a heating layer (7), the inner side of the heating layer (7) is fixedly connected to a temperature controller (11), the bottom of the first motor (4) is fixedly connected to a first rotating shaft (5) that passes through the housing (1) and the heating layer (7), the outer side of the first rotating shaft (5) is fixedly connected to a first stirring plate (6), the bottom of the housing (1) is fixedly connected to a first rotating shaft (5) that passes through the housing (1) and the heating layer (7), The end is fixedly connected to a discharge pipe (12), the outer side of the discharge pipe (12) is fixedly connected to a third motor (13), the right side of the third motor (13) is fixedly connected to a third rotating shaft (14) passing through the discharge pipe (12), the outer side of the third rotating shaft (14) is fixedly connected to a spiral pattern (15), the outer side of the outer shell (1) is fixedly connected to a second motor (8), the right side of the second motor (8) is fixedly connected to a second rotating shaft (9) passing through the outer shell (1) and the heating layer (7), and the outer side of the second rotating shaft (9) is fixedly connected to a second stirring plate (10).
2. A mixing device for TPU production according to claim 1, characterized in that: The second motor (8) and the second rotating shaft (9) form a group, with four groups in total, and are symmetrical about the center of the housing (1).
3. A mixing device for TPU production according to claim 1, characterized in that: The number of the second stirring plates (10) is twelve, and they are evenly distributed on the surface of the second rotating shaft (9).
4. A mixing device for TPU production according to claim 1, characterized in that: The length of the first stirring plate (6) is slightly smaller than the diameter of the inner wall of the heating layer (7).
5. A mixing device for TPU production according to claim 1, characterized in that: The outer side of the auger pattern (15) is tightly fitted to the inner wall of the discharge pipe (12).