Double-stirring-shaft mixer
The design of the dual-shaft mixer solves the problem of uneven mixing of TPU particles under single-shaft mixing, achieving more efficient mixing and safe quantitative discharge.
Patent Information
- Application Number
- CN202423252088.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing single-axis mixing methods are difficult to achieve completely uniform mixing when mixing TPU particles, especially for TPU materials with high viscosity or irregular shape, which can easily lead to clumping and uneven mixing in certain areas.
The mixer adopts a dual-shaft mixing device, which enhances the shearing force by setting the first and second mixing shafts to move simultaneously and in opposite directions. It is also equipped with a lifting sealing plate and a pressure sensor to control the discharge, ensuring uniform mixing and quantitative discharge.
This process achieves thorough and uniform mixing of TPU particles, prevents clumping, ensures quantitative material discharge, and improves mixing efficiency and safety.
Smart Images
Figure CN223573839U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical technical field, concretely is a kind of double stirring shaft mixer. BACKGROUND
[0002] In the 3D printing consumable processing process, TPU (thermoplastic polyurethane) material particles are widely used in the production of 3D printing consumables as a common elastomer material. In order to optimize the performance of TPU particles, it is usually mixed and combined to improve the uniformity and consistency of the material. The existing mixing and stirring method is mostly single-shaft stirring, which drives the stirrer (such as propeller, blade, etc.) to rotate by a rotating shaft, mixes TPU particles and other mixed materials. The efficiency of single-shaft stirring is limited, especially for TPU materials with high viscosity or irregular particle shape, the stirring may not be completely uniform. The particles may agglomerate or aggregate during stirring, resulting in uneven local mixing. SUMMARY
[0003] The utility model aims at providing a kind of double stirring shaft mixer to solve the problems raised in the above background.
[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of double stirring shaft mixer, comprising:
[0005] support frame;
[0006] mixing barrel, mixing barrel is placed in the top of the support frame, the inside rotation of the mixing barrel is provided with stirring shaft two, the inside rotation of the stirring shaft two is connected with stirring shaft one, the bottom of the support frame is fixedly connected with driving part, for driving stirring shaft one and stirring shaft two simultaneously and reverse movement;
[0007] discharge pipe, discharge pipe is placed in the bottom of the mixing barrel one side, the inside of the discharge pipe is provided with sealing plate;
[0008] support, support is placed below the discharge pipe, for supporting material receiving bag, the bottom of the support is provided with pressure sensor for weighing.
[0009] As preferred, the driving part includes a fixed frame fixedly connected to the bottom of the support frame, one side of the fixed frame is fixedly connected with a motor, and the output end of the motor is fixedly connected with a driving bevel gear.
[0010] As preferred, the bottom of the stirring shaft two extends into the fixed frame and is fixedly connected with a driven bevel gear two, the bottom of the stirring shaft one extends into the fixed frame and is fixedly connected with a driven bevel gear one, and the driven bevel gear two and the driven bevel gear one are meshingly connected with the driving bevel gear.
[0011] As preferred, a sliding rod is fixedly connected to the top of the discharge pipe, and the blocking plate is slidingly installed outside the sliding rod, and the top of the blocking plate is fixedly connected with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected with the discharge pipe through the blocking plate.
[0012] As preferred, a top cover is rotatably connected to the top of the mixing barrel.
[0013] As preferred, two limiting sliding rods are fixedly connected to one side of the support, and the two limiting sliding rods are slidingly connected with the fixing frame.
[0014] As preferred, a base is arranged at the bottom of the support, and a pressure sensor is arranged between the base and the support.
[0015] Compared with the prior art, the beneficial effects of the utility model are that: through the arrangement of the double stirring shafts, the simultaneous and reverse movement of the stirring shaft one and the stirring shaft two enhances the shearing and stirring force in the stirring process, and ensures that the raw materials with different components can be fully and uniformly mixed; the discharge pipe is internally provided with a lifting type blocking plate, the opening and closing of which is controlled by the electric telescopic rod, so that the controlled discharge of the materials is realized; when the pressure sensor detects that the weight of the materials in the collecting bag reaches the preset value, the controller will automatically control the electric telescopic rod to retract, block the discharge pipe, and prevent the excessive discharge of the materials; the top of the mixing barrel is provided with a rotatable top cover, which facilitates feeding and maintenance; when the top cover is opened, the motor is automatically stopped through the travel switch, so as to prevent the safety hazard caused by the continuous rotation of the stirring shaft when the top cover is opened. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic view of the utility model;
[0017] Figure 2 It is a structural schematic view of the top cover of the utility model;
[0018] Figure 3 It is a structural schematic view of the fixing frame of the utility model;
[0019] Figure 4 It is a structural schematic view of the mixing barrel of the utility model;
[0020] Figure 5 It is a structural schematic view of the blocking plate of the utility model;
[0021] Figure 6 It is a structural schematic view of the stirring shaft one of the utility model;
[0022] Figure 7 It is an enlarged view of A of the utility model; Figure 6
[0023] In the figure: 1, mixing barrel; 2, top cover; 3, support frame; 4, discharge pipe; 5, blocking plate; 6, electric telescopic rod; 7, stirring shaft one; 8, stirring shaft two; 9, support; 10, base; 11, motor; 12, driven bevel gear two; 13, driven bevel gear one; 14, driving bevel gear; 15, fixed frame; 16, limiting slide rod; 17, pressure sensor. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Please refer to Figure 1 , 2 , 3, 4, 5, 6, 7, the utility model provides a technical scheme: a double stirring shaft mixer, it includes: support frame 3, mixing barrel 1 is fixedly connected at the top of support frame 3, and stirring shaft two 8 is rotatably arranged in the inside of mixing barrel 1, and stirring shaft one 7 is rotatably connected in the inside of stirring shaft two 8, and the bottom of support frame 3 is fixedly connected with a driving part, for driving stirring shaft one 7 and stirring shaft two 8 to move simultaneously and reversely, and discharge pipe 4 is arranged on one side of the bottom of mixing barrel 1, and blocking plate 5 is arranged in the inside of discharge pipe 4, and support 9 is arranged below discharge pipe 4, for supporting the material collecting bag, and the bottom of support 9 is provided with pressure sensor 17 for weighing.
[0026] It should be noted that the utility model is provided with a controller and an operation panel, the raw materials to be mixed are placed in the mixing barrel 1, the stirring shaft one 7 and the stirring shaft two 8 are driven to rotate reversely simultaneously by the driving part, the double stirring shafts moving reversely can improve the uniformity of mixing, ensure that the raw materials of different components are fully mixed, the inside is mixed by the stirring blades on the outside of the stirring shaft one 7 and the stirring shaft two 8, when the mixing is completed, the nylon bag for collecting materials is sleeved outside the support 9, is pushed to the bottom of support frame 3, the blocking plate 5 is controlled to open, so that the granular materials enter the nylon bag along the discharge pipe 4, and the pressure sensor 17 on the top of base 10 detects the weight above, when the pressure reaches the preset value, the controller controls the blocking plate 5 to block the discharge pipe 4.
[0027] Please refer to Figure 3 , 6The driving part includes a fixed frame 15 fixed to the bottom of the support frame 3, the fixed frame 15 is fixedly connected with a motor 11 on one side, the output end of the motor 11 is fixedly connected with a driving bevel gear 14, the bottom of the stirring shaft two 8 extends into the fixed frame 15 and is fixedly connected with a driven bevel gear two 12, the bottom of the stirring shaft one 7 extends into the fixed frame 15 and is fixedly connected with a driven bevel gear one 13, and the driven bevel gear two 12 and the driven bevel gear one 13 are all meshingly connected with the driving bevel gear 14.
[0028] It should be noted that the driven bevel gear two 12 and the driven bevel gear one 13 are symmetrically arranged about the driving bevel gear 14, and the driven bevel gear two 12 is located above the driven bevel gear one 13, after the motor 11 is started, a rotating power is generated, and the rotating power is transmitted to the driven bevel gear one 13 and the driven bevel gear two 12 through the driving bevel gear 14 at the output end of the motor 11. The driving bevel gear 14 is closely meshed with the driven bevel gear one 13 and the driven bevel gear two 12, so that the stirring shaft one 7 and the stirring shaft two 8 rotate respectively, the outer diameter of the stirring blade on the outside of the stirring shaft one 7 is smaller than the inner diameter of the stirring blade on the outside of the stirring shaft two 8, due to the meshing relationship of the gears, the stirring shaft one and the stirring shaft two rotate in opposite directions, so that stronger shearing and stirring forces are generated in the stirring process, and uniform mixing of the materials is ensured.
[0029] Please refer to Figure 5 The top of the discharge pipe 4 is fixedly connected with a sliding rod, the blocking plate 5 is slidingly installed on the outside of the sliding rod, the top of the blocking plate 5 is fixedly connected with an electric telescopic rod 6, and the output end of the electric telescopic rod 6 is fixedly connected with the discharge pipe 4 through the blocking plate 5.
[0030] It should be noted that the discharge pipe 4 is communicated with the mixing barrel 1, and the electric telescopic rod 6 controls the telescopic action through the controller. When the material needs to be discharged, the electric telescopic rod is controlled to be elongated, the blocking plate 5 moves upwards along the sliding rod, and then the blocking plate 5 is pulled out of the discharge pipe 4, and the material is discharged from the outlet of the discharge pipe 4. When the pressure sensor 17 detects that the pressure reaches the preset value, the controller controls the electric telescopic rod 6 to be retracted, the blocking plate 5 moves in the opposite direction along the sliding rod, and the outlet of the discharge pipe 4 is closed, so that the material is prevented from being discharged.
[0031] Please refer to Figure 1 、 2 , 3, the top of the mixing barrel 1 is rotatably connected with a top cover 2.
[0032] It should be noted that the outside of the mixing barrel 1 is fixedly connected with a support, the middle of the support is rotatably connected with a connecting plate, the top of the connecting plate is fixedly connected with the top cover 2, and the middle of the support is provided with a travel switch. When the top cover 2 is opened, the connecting plate is in contact with the travel switch, so that the motor 11 stops working, and the safety hidden danger when the top cover 2 is opened is prevented.
[0033] Please refer to Figure 2 ,6 As shown, one side of the support 9 is fixed with two limiting slide rods 16, the two limiting slide rods 16 are slidably connected with the fixed frame 15, the bottom of the support 9 is provided with a base 10, and the pressure sensor 17 is installed between the base 10 and the support 9.
[0034] It should be noted that the support 9 is welded by a semicircular pipe and a metal rod fixed at the bottom of the semicircular pipe, the limiting slide rod 16 is provided with two and is fixed with the metal rod, the sliding connection of the limiting slide rod 16 and the fixed frame 15 ensures that the support 9 can move horizontally below the discharge pipe 4, prevents the position of the support 9 from deviating from the discharge pipe 4, the bottom of the metal rod is fixed with a circular plate, the bottom of the circular plate is fixed with a plurality of limiting rods slidably connected with the base 10, and the pressure sensor 17 is fixed at the top of the base 10 and used for the weight of the material above.
[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0036] In addition, the terms "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features, so that the features limited by "first", "second", "third", "fourth" can be explicitly or implicitly included at least one of the features.
[0037] In the present application, unless otherwise specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specified, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application by the person skilled in the art.
[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A double-paddle-shaft mixer characterized by: Include: Support frame (3); Mixing barrel (1), mixing barrel (1) is placed on the top of the support frame (3), the inside of the mixing barrel (1) is rotatably provided with a stirring shaft two (8), the inside of the stirring shaft two (8) is rotatably connected with a stirring shaft one (7), the bottom of the support frame (3) is fixedly connected with a driving part for driving the stirring shaft one (7) and the stirring shaft two (8) to move simultaneously and reversely; Discharge pipe (4), discharge pipe (4) is placed on one side of the bottom of the mixing barrel (1), the inside of the discharge pipe (4) is provided with a blocking plate (5) which is lifted and lowered; Support (9), support (9) is placed below the discharge pipe (4) for supporting the material receiving bag, the bottom of the support (9) is provided with a pressure sensor (17) for weighing.
2. A dual shaft mixer according to claim 1, wherein: The driving part includes a fixed frame (15) fixedly connected to the bottom of the support frame (3), one side of the fixed frame (15) is fixedly connected with a motor (11), the output end of the motor (11) is fixedly connected with a driving bevel gear (14).
3. A dual shaft mixer according to claim 2, wherein: The bottom of the stirring shaft two (8) extends into the fixed frame (15) and is fixedly connected with a driven bevel gear two (12), the bottom of the stirring shaft one (7) extends into the fixed frame (15) and is fixedly connected with a driven bevel gear one (13), the driven bevel gear two (12) and the driven bevel gear one (13) are both meshingly connected with the driving bevel gear (14).
4. A dual shaft mixer as claimed in claim 1, wherein: The top of the discharge pipe (4) is fixedly connected with a sliding rod, the blocking plate (5) is slidingly installed on the outside of the sliding rod, the top of the blocking plate (5) is fixedly connected with an electric telescopic rod (6), the output end of the electric telescopic rod (6) penetrates the blocking plate (5) and is fixedly connected with the discharge pipe (4).
5. A dual shaft mixer as claimed in claim 1, wherein: The top of the mixing barrel (1) is rotatably connected with a top cover (2).
6. A dual-axis mixer as claimed in claim 1, wherein: One side of the support (9) is fixedly connected with two limiting sliding rods (16), the two limiting sliding rods (16) are slidingly connected with the fixed frame (15).
7. A dual shaft mixer according to claim 6, wherein: The bottom of the support (9) is provided with a base (10), and the pressure sensor (17) is installed between the support (9) and the base (10).