High-speed mixer

Abstract

According to the high-speed mixing machine provided by the utility model, the two independent cavities, namely the piston cavity and the mixing cavity, are arranged, and the opening and closing of the communication port between the piston cavity and the mixing cavity are controlled by the piston, so that the mixing and discharging of materials are realized. The stirring paddle is arranged at the bottom of the mixing bin, and the centrifugal force generated when the stirring paddle rotates is utilized to ensure that the materials cannot be deposited at the bottom of the mixing cavity, so that the sufficient mixing of the materials is improved. Meanwhile, the serrated knife is arranged on the side face of the mixing bin, when the materials do vortex-shaped motion in the mixing cavity under the rotation effect of the stirring paddle, the serrated knife continuously cuts the materials through high-speed rotation, and therefore efficient cutting and sufficient mixing are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-speed mixers, and particularly relates to a high-speed mixer. Background Art

[0002] A high-speed mixer is a device widely used in industries such as plastics, rubber, pharmaceuticals, and dyes. The high-speed mixer has multiple functions such as mixing and granulating. After the powder material is added to the mixing container, under the action of the mixing paddle and the cutter, the material is cut and stirred into a flowing state, so as to obtain sufficient mixing. At present, high-speed mixers are widely used in the pharmaceutical, food, and chemical industries. However, with the improvement of material preparation requirements, the requirements for high-speed mixers are getting higher and higher.

[0003] At present, the existing high-speed mixer uses a cutter driven by a central shaft to rotate. Due to the large diameter of the cutter, the energy consumption generated by the motor is high, while the shearing speed is low, and the requirement of further refining the material cannot be achieved. In addition, the effective use area of the cutter is small, only the tip of the cutter can contact the material, the flow state in the material barrel is in a vortex shape, and the material is distributed at the outer edge of the container, resulting in excessive useless work and low working efficiency of the high-speed mixer.

[0004] Therefore, how to overcome the above technical defects is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-speed mixer that can achieve efficient cutting and sufficient mixing of materials.

[0006] To solve the above technical problems, the utility model provides a high-speed mixer, which includes a mixing chamber, a piston chamber, a first driving mechanism, a second driving mechanism, and a third driving mechanism;

[0007] The mixing chamber has a mixing cavity, the mixing chamber is provided with a feed inlet, the junction of the side and the bottom of the mixing chamber is communicated with the piston chamber, and the bottom of the piston chamber is provided with a discharge outlet;

[0008] The bottom of the mixing chamber is rotatably provided with a first transmission shaft, a mixing paddle is arranged on the first transmission shaft, and the first driving mechanism is used to drive the first transmission shaft to rotate;

[0009] The side of the mixing chamber is rotatably provided with a second transmission shaft, a toothed cutter is arranged on the second transmission shaft, and the second driving mechanism is used to drive the second transmission shaft to rotate;

[0010] A piston is movably arranged in the piston chamber, and the third driving mechanism is used to drive the piston to block or unseal the communication port between the piston chamber and the mixing chamber.

[0011] Optionally, in the above high-speed mixer, the mixing chamber and the first transmission shaft are coaxially arranged.

[0012] Optionally, in the above high-speed mixer, the second transmission shaft and the second driving mechanism are in one-to-one correspondence and the number is multiple.

[0013] Optionally, in the above high-speed mixer, the first transmission shaft is connected to the stirring paddle by welding or bolt connection.

[0014] Optionally, in the above high-speed mixer, the stirring paddle is a flat paddle blade, an inclined paddle blade or a spiral blade.

[0015] Optionally, in the above high-speed mixer, there is an interference fit between the communication port of the piston cavity and the mixing chamber and the piston.

[0016] Optionally, in the above high-speed mixer, the number of the feed ports is multiple.

[0017] Optionally, in the above high-speed mixer, the height of the discharge port is lower than the height of the bottom of the mixing cavity of the mixing chamber.

[0018] Optionally, in the above high-speed mixer, it further includes a base for supporting the mixing chamber and the first driving mechanism.

[0019] Optionally, in the above high-speed mixer, a first flange is provided at the bottom of the first driving mechanism, the first flange is fixed on the base by bolts, a second flange is provided at the bottom of the mixing chamber, and the second flange is fixed on the base by bolts.

[0020] The present utility model provides a high-speed mixer, and its beneficial effects are as follows:

[0021] By providing two independent cavities, namely a piston cavity and a mixing cavity, and using a piston to control the opening and closing of the communication port between the piston cavity and the mixing cavity, the mixing and discharging of materials are realized. By arranging a stirring paddle at the bottom of the mixing chamber and using the centrifugal force generated when the stirring paddle rotates, it is ensured that the materials will not deposit at the bottom of the mixing cavity, thereby improving the full mixing of the materials. At the same time, by arranging a toothed knife on the side of the mixing chamber, when the materials make a swirling motion in the mixing cavity under the rotation of the stirring paddle, the toothed knife rotates at a high speed and continuously cuts the materials, thereby realizing efficient cutting and full mixing. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0023] Figure 1 Structural schematic diagram of a high-speed mixer provided by an embodiment of the present invention;

[0024] Figure 2 Front view of a high-speed mixer provided by an embodiment of the present invention;

[0025] Figure 3 Perspective structural schematic diagram of the mixing chamber of the high-speed mixer provided by an embodiment of the present invention from the first perspective;

[0026] Figure 4 Perspective structural schematic diagram of the mixing chamber of the high-speed mixer provided by an embodiment of the present invention from the second perspective;

[0027] Figures 5 - 6 Cross-sectional view of a high-speed mixer provided by an embodiment of the present invention in different directions.

[0028] In the above figures:

[0029] 100 - Base;

[0030] 200 - First driving mechanism;

[0031] 300 - Mixing chamber; 301 - First transmission shaft; 302 - Second driving mechanism; 303 - Tooth cutter; 304 - Stirring paddle; 305 - Third driving mechanism; 306 - Piston; 307 - Piston cavity; 308 - First feed inlet; 309 - Second feed inlet; 310 - Discharge port. Detailed implementation manners

[0032] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0033] The core of the present invention is to provide a high-speed mixer that can achieve efficient cutting and full mixing of materials.

[0034] To enable those skilled in the art to better understand the technical solution provided by the present utility model, the following will further elaborate on the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0035] Specifically, please refer to Figures 1 - 6 , a high-speed mixer provided by the present utility model includes a mixing chamber 300, a piston chamber 307, a first driving mechanism 200, a second driving mechanism 302, a third driving mechanism 305, and a control system.

[0036] The mixing chamber 300 has a mixing cavity. The mixing chamber 300 is provided with a feed inlet. The junction of the side and the bottom of the mixing chamber 300 communicates with the piston chamber 307. The piston chamber 307 has a piston cavity, and the bottom of the piston chamber 307 is provided with a discharge port 310.

[0037] The bottom of the mixing chamber 300 is rotatably provided with a first transmission shaft 301. A stirring paddle 304 is arranged on the first transmission shaft 301. The first driving mechanism 200 is used to drive the first transmission shaft 301 to rotate, so as to realize the full mixing of materials in the mixing cavity.

[0038] The side of the mixing chamber 300 is rotatably provided with a second transmission shaft. A toothed knife 303 is arranged on the second transmission shaft. The second driving mechanism 302 is used to drive the second transmission shaft to rotate, so as to realize the full shearing of materials in the mixing cavity.

[0039] A piston 306 is movably arranged in the piston chamber 307. The third driving mechanism 305 is used to drive the piston 306 to block or unblock the communication port between the piston chamber 307 and the mixing chamber 300. By changing the stroke of the third driving mechanism 305, the piston chamber is switched between a closed state and a communication state. By blocking the communication port between the piston chamber and the mixing chamber with the piston 306, at this time, the piston chamber and the mixing chamber are two independent cavities, and the stirring paddle 304 can rotate at the bottom of the mixing chamber 300 without being restricted by any components, so that the materials are fully cut by the toothed knife 303 during the sinking and rising processes; when the piston 306 returns to the initial position under the control of the third driving mechanism 305, at this time, there is no contact between the piston 306 and the communication port, and the piston chamber and the mixing chamber are in a communication state, and the fully mixed materials are discharged from the discharge port 310 of the piston chamber.

[0040] The control system is used to control the start and stop of the first driving mechanism 200, the second driving mechanism 302, and the third driving mechanism 305 respectively.

[0041] The utility model provides a high-speed mixer, which realizes the mixing and discharge of materials by setting two independent chambers, namely the piston chamber and the mixing chamber, and controlling the opening and closing of the communication port between the piston chamber and the mixing chamber by using the piston 306. By setting a stirring paddle 304 at the bottom of the mixing chamber 300, the centrifugal force generated by the rotation of the stirring paddle 304 can make the materials float upward along the wall of the mixing chamber 300 under the action of the centrifugal force, and then fall near the center of the mixing chamber 300 under the action of gravity, so as to ensure that the materials will not be deposited at the bottom of the mixing chamber, and can form the tumbling of the materials, thereby improving the full mixing of the materials. At the same time, by setting a toothed knife 303 on the side of the mixing chamber 300, when the materials make a vortex motion in the mixing chamber under the rotation of the stirring paddle 304, the toothed knife 303 continuously cuts the materials through high-speed rotation, thereby realizing efficient cutting and full mixing.

[0042] In a specific embodiment, the first transmission shaft 301 is arranged on the central axis of the mixing bin 300, that is, the mixing bin 300 and the first transmission shaft 301 are arranged coaxially. The mixing chamber in the mixing bin 300 can be a cylindrical cavity, or a cavity of other shapes. In particular, when a cylindrical cavity is used, the circular area required for the rotation of the stirring paddle 304 fits exactly with the bottom and side of the mixing chamber, so that the material will not stay at the bottom of the mixing bin 300, but always floats in the mixing chamber by moving up and down, thereby achieving efficient and sufficient mixing. The area where the material floats up and down can be determined based on the power of the first driving mechanism 200 and the rotation speed of the stirring paddle 304, and the second transmission shaft and the toothed cutter 303 are arranged on the floating area, thereby achieving efficient cutting.

[0043] Furthermore, the number of the second transmission shafts may be one or more. The multiple second transmission shafts may be driven simultaneously by one driving mechanism, or the second transmission shafts and the second driving mechanism 302 may correspond one to one. The multiple second transmission shafts may be arranged along the circumference of the mixing bin 300.

[0044] The side wall of the mixing bin 300 is equipped with a multi-blade serrated knife 303 that can rotate at high speed, which can improve the overall use effect. At the same time, the volume requirements for the second drive mechanism 302 and the high-speed mixer are small, avoiding an increase in production costs. In the experiment, a serrated knife 303 is provided with a total of 12 blades. The tail of the serrated knife 303 is connected to the side wall of the mixing bin 300, and the speed can reach 70m / s when opened. The application of the serrated knife 303 breaks the restrictions of traditional mixers on the shape of the cutter. While increasing the number of blades on the serrated knife 303, high linear speed shearing is achieved, and more precise mixing of materials is achieved under the same energy consumption. At the same time, the serrated knife 303 is small in size, which further reduces the equipment footprint and reduces production costs.

[0045] In a specific embodiment, the first transmission shaft 301 is connected to the stirring paddle 304 by means of welding or bolt connection, etc., to control the movement of the stirring paddle 304. The stirring paddle 304 rotates to disperse and mix the materials. The rear end of the toothed knife 303 can be connected to the second transmission shaft through a flange and bolts.

[0046] The stirring paddle 304 can be a flat paddle blade, an inclined paddle blade or a spiral blade. The outer edge shape of the flat paddle blade is consistent with the inner wall of the stirring chamber, which can remove the viscous reaction products at the bottom of the stirring chamber or the materials accumulated at the bottom of the chamber, and maintain a good mixing effect. The inclined paddle blade has a certain inclination angle, which can make the stirring more uniform and provide an upward thrust to the materials. The spiral blade can also play a role in disturbing and mixing the materials. Specifically, the type of the stirring paddle 304 can be selected according to actual needs.

[0047] In a specific embodiment, there is an interference fit between the communication port of the piston cavity 307 and the mixing chamber 300 and the piston 306. When the piston 306 moves forward under the control of the third driving mechanism 305, the piston 306 blocks the communication port between the piston cavity and the mixing cavity. At this time, the piston cavity and the mixing cavity are two independent cavities. When the piston 306 returns to the initial position under the control of the third driving mechanism 305, there is no contact between the piston 306 and the communication port at this time, and the piston cavity and the mixing cavity are in a communicating state.

[0048] Specifically, the feed port is arranged at the top of the mixing chamber 300. The number of feed ports can be one or more, and can be adaptively selected according to actual needs. As Figure 4 shown, the first feed port 308 and the second feed port 309 are arranged at the top of the mixing chamber 300, which are two independent feeding positions. Different types of materials enter the interior of the mixing chamber 300 through the two feed ports respectively. The mixed materials flow out from the position of the discharge port 310.

[0049] To facilitate the output of the materials, the height of the discharge port 310 is lower than the height of the bottom of the mixing cavity of the mixing chamber 300, so that when the piston 306 is in the open state, the materials can smoothly pass through the piston cavity and be discharged from the discharge port 310.

[0050] This solution also includes a base 100 for supporting the mixing chamber 300 and the first driving mechanism 200. The base 100 plays a supporting role. The movable end of the first driving mechanism 200 drives the first transmission shaft 301 to rotate through a belt transmission assembly or other transmission assemblies. Specifically, a flange is arranged at the bottom of the first driving mechanism 200, and the flange is fixed on the base 100 by bolts, converting electricity into kinetic energy and providing initial power for the rotational movement of the first transmission shaft 301 in the mixing chamber 300. A flange is also arranged at the bottom of the mixing chamber 300, and this flange is fixed above the base 100 by bolts.

[0051] The first driving mechanism 200 and the second driving mechanism 302 can adopt a rotary motor or other rotary power equipment, and the third driving mechanism 305 can adopt a cylinder, a hydraulic cylinder or other linear motion equipment, which will not be elaborated here.

[0052] During specific use, the main process steps of the high-speed mixer for mixing materials are as follows:

[0053] 1. The third driving mechanism 305 controls the piston 306 to move forward, and the communication port between the piston chamber and the mixing chamber is blocked by the piston 306;

[0054] 2. The material enters the mixing bin 300 through the first feeding port 308 or the second feeding port 309;

[0055] 3. Start the first driving mechanism 200 to make the stirring paddle 304 rotate at a high speed. The stirring paddle 304 generates a centrifugal force inside the mixing chamber, and the material makes a rotational motion above the mixing chamber;

[0056] 4. Start the second driving mechanism 302, and the toothed knife 303 continuously cuts the material through high-speed rotation;

[0057] 5. After the material is fully mixed under the action of the toothed knife 303 and the stirring paddle 304, control the toothed knife 303 and the stirring paddle 304 to stop rotating;

[0058] 6. The piston 306 returns to the initial position under the control of the third driving mechanism 305. At this time, the mixing chamber is communicated with the piston chamber;

[0059] 7. The material enters the piston chamber and finally flows out through the discharge port 310.

[0060] In the description of the present application, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present application.

[0061] In the description of the present application, the meaning of "a plurality" is more than two. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0062] As shown in this application and the claims, unless the context clearly indicates otherwise, words such as "a", "an", "one", and / or "the" are not specifically singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. An element defined by the statement "comprising one..." does not exclude the existence of other identical elements in the process, method, product, or device that includes the element.

[0063] Among them, in the description of the embodiments of this application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B. The "and / or" herein is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "a plurality of" means two or more than two.

[0064] In the description of this application, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

[0065] The various embodiments in this specification are described in a progressive manner. The focus of each embodiment is on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0066] Specific examples are used herein to elaborate on the principles and implementation manners of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in the technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A high-speed mixer, characterized in that, It includes a mixing bin, a piston cavity, a first driving mechanism, a second driving mechanism and a third driving mechanism; The mixing bin has a mixing chamber, a feed inlet is provided on the mixing bin, the junction of the side and the bottom of the mixing bin communicates with the piston cavity, and a discharge outlet is provided at the bottom of the piston cavity; A first transmission shaft is rotatably provided at the bottom of the mixing bin, a stirring paddle is provided on the first transmission shaft, and the first driving mechanism is used to drive the first transmission shaft to rotate; A second transmission shaft is rotatably provided on the side of the mixing bin, a toothed knife is provided on the second transmission shaft, and the second driving mechanism is used to drive the second transmission shaft to rotate; A piston is movably arranged in the piston cavity, and the third driving mechanism is used to drive the piston to block or unseal the communication port between the piston cavity and the mixing bin.

2. The high-speed mixer according to claim 1, characterized in that, The mixing bin and the first transmission shaft are coaxially arranged.

3. The high-speed mixer according to claim 1, characterized in that, The second transmission shafts and the second driving mechanisms are in one-to-one correspondence and the number is multiple.

4. The high-speed mixer according to claim 1, characterized in that, The first transmission shaft is connected to the stirring paddle by welding or bolt connection.

5. The high-speed mixer according to claim 1, characterized in that, The stirring paddle is a flat paddle blade, an inclined paddle blade or a spiral blade.

6. The high-speed mixer according to claim 1, characterized in that, There is an interference fit between the piston and the communication port between the piston cavity and the mixing bin.

7. The high-speed mixer according to claim 1, wherein The number of the feed inlets is multiple.

8. The high-speed mixer according to claim 1, wherein The height of the discharge outlet is lower than the height of the bottom of the mixing chamber of the mixing bin.

9. The high-speed mixer according to claim 1, wherein It further includes a base for supporting the mixing bin and the first driving mechanism.

10. The high-speed mixer according to claim 9, wherein, A first flange is provided at the bottom of the first driving mechanism, the first flange is fixed on the base by bolts, a second flange is provided at the bottom of the mixing bin, and the second flange is fixed on the base by bolts.

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