Anti-accumulation and flow-aiding stirring device

Abstract

The utility model relates to the field of stirring equipment discloses a kind of anti-accumulation flow-aiding stirring device, including ring base, lifting mechanism, crossbeam, first rotating mechanism of driving anchor type stirring paddle and second rotating mechanism of driving stirring jar rotation, device is specially provided with clamping mechanism, the mechanism includes bottom plate, vertical movable rod, central gear, horizontal movable rod and curved clamping piece, when stirring jar is placed on bottom plate, spring is compressed using gravity and drives vertical movable rod to move down, horizontal movable rod is driven to contract by central gear transmission, so that curved clamping piece automatically clamps jar body. The utility model realizes high efficiency, convenient and uniform mixing effect by the double reverse rotation of stirring paddle and stirring jar and internal flow guide structure, effectively eliminates flow dead angle, prevents material accumulation;Automatic clamping and release are realized using gravity linkage, and operation is simplified;Pulley block on clamping piece reduces rotary friction.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment, and in particular to a mixing device for preventing accumulation and promoting flow. Background Technology

[0002] As an indispensable key piece of equipment in many industrial fields such as chemical, food, pharmaceutical, and new materials, the core function of a mixing device is to disperse and mix two or more materials through mechanical action to achieve a uniform distribution. Traditional mixing devices typically consist of a fixed mixing tank and a rotating agitator placed within it.

[0003] In practical applications, especially when handling materials with high viscosity, easy settling, or poor flowability, this type of traditional stirring device reveals significant limitations. When the stirring paddle rotates within a stationary tank, the material near the paddle gains a higher velocity, while the material near the tank wall and bottom center experiences reduced flow velocity due to shear force transmission, resulting in slow flow and even the formation of "dead zones." The material tends to rotate with the stirring paddle as a whole, lacking effective radial and axial exchange, leading to material adhesion to the tank wall (wall sticking) and accumulation in the bottom center region, severely affecting mixing uniformity and heat transfer efficiency.

[0004] To address this issue, some existing technologies have added baffles or scrapers to the fixed inner wall of the tank. While these additions can disrupt the overall material rotation and enhance turbulence to some extent, their effect is passive. For material systems with extremely poor flowability, localized areas of sluggish flow still form near the baffles, and scrapers cannot completely cover all inner wall surfaces, especially failing to effectively solve the problem of material accumulation in the central area at the bottom of the tank. Therefore, how to fundamentally change the flow field pattern, actively eliminate mixing dead zones, prevent material accumulation, and assist overall flow remains a pressing technical challenge in this field.

[0005] Therefore, this utility model proposes an anti-accumulation and flow-aiding stirring device to overcome the shortcomings of the prior art. Summary of the Invention

[0006] In view of the problems in the existing anti-stacking flow-aiding mixing device, such as the material easily forming flow dead zones and accumulating inside the tank during the mixing process, resulting in uneven mixing, and the cumbersome and inefficient operation of the fixing method of the mixing tank, this utility model aims to provide an anti-stacking flow-aiding mixing device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an anti-accumulation and flow-aiding mixing device, including: an annular base, a lifting mechanism, a square shell, an electric hydraulic press, a push rod, a crossbeam, a first rotating mechanism, a first motor, an anchor-type mixing paddle, a second rotating mechanism, a base plate, and a mixing tank; as well as a clamping mechanism.

[0008] The clamping mechanism includes a cross-shaped housing, a central gear rotatably mounted at the center of the cross-shaped housing, a vertical movable rod, a spring, two horizontal movable rods, two curved clamping plates, and a connecting block.

[0009] Furthermore, the vertical movable rod is provided with a rack that meshes with the central gear, and its bottom is fixedly installed at the end of the base plate of the second rotating mechanism; the spring is disposed between the base plate and the annular base, and is used to deform when the base plate is compressed; both horizontal movable rods are provided with racks that mesh with the central gear; the two curved clamping plates are respectively fixedly connected to the ends of the two horizontal movable rods away from the central gear through the connecting block; the square outer shell of the lifting mechanism is vertically fixed to the side surface of the annular base; one end of the crossbeam is connected to the push rod of the lifting mechanism, and the other end is fixedly installed with the first rotating mechanism.

[0010] Preferably, a spiral guide plate is fixedly installed on the inner surface of the mixing tank; and the bottom of the inner side of the tank is an inverted cone shape, the contour of which matches the outer edge trajectory swept by the anchor-type stirring paddle when it rotates. This combined structure can force the material to generate a composite flow of axial and radial directions and eliminate the accumulation at the center of the tank bottom, thereby greatly improving the uniformity and thoroughness of mixing.

[0011] Preferably, a second outer shell is fixedly installed on the upper surface of the base plate of the second rotating mechanism, a second motor is installed inside the second outer shell, and a horizontally placed tray is installed at the output end of the second motor. The tray is located on the base plate and is used to directly support and drive the mixing tank to rotate.

[0012] Preferably, a protrusion is fixedly installed on the upper surface of the tray, and a groove that matches the protrusion is opened on the bottom surface of the outer side of the mixing tank. Through the meshing of this concave-convex structure, it can be ensured that the torque output by the second motor can be stably and reliably transmitted to the mixing tank.

[0013] Preferably, the first rotating mechanism includes a first housing, the other end of the crossbeam is fixedly mounted on the side surface of the first housing, and the first motor is housed and installed inside the first housing to form an integrated stirring drive head.

[0014] Preferably, a bearing is installed on the lower surface of the first outer shell; a lid is provided on the top of the mixing tank, and the lid is rotatably connected to the bearing. This design allows the lid to rotate synchronously with the mixing tank when it rotates, while the first rotating mechanism remains relatively stationary in space.

[0015] Preferably, the inner side of the curved clamp is equipped with a pulley system, which is used to make rolling contact with the outer surface of the mixing tank. This structure can convert the sliding friction generated when clamping the rotating tank into rolling friction, thereby significantly reducing rotational resistance, energy consumption and component wear.

[0016] Preferably, the anti-accumulation and flow-aiding stirring device further includes a control panel, which is electrically connected to the electric hydraulic press, the first motor and the second motor respectively via circuits, for realizing unified control and coordinated operation of the various moving parts of the equipment.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of material accumulation and uneven mixing caused by dead flow corners in existing mixing devices by setting the mixing tank and the anchor-type mixing paddle to rotate in opposite directions, and by setting a spiral guide plate on the inner wall of the tank and an inverted cone structure on the inner bottom. It achieves the technical effect of eliminating mixing dead corners, enhancing material flow, and realizing efficient and uniform mixing.

[0018] This utility model solves the problems of manual operation, cumbersome steps, and low efficiency in existing mixing devices when fixing the mixing tank by setting a clamping mechanism that is linked by a vertical movable rod, a central gear, a horizontal movable rod, and a spring. It achieves the technical effect of automatically clamping and releasing by utilizing the weight of the mixing tank itself, simplifying the operation process and improving loading and unloading efficiency.

[0019] This invention solves the problems of huge resistance, energy consumption and wear caused by sliding friction when clamping a rotating tank by setting a pulley group on the inner side of the curved clamping plate, thus achieving the technical effects of reducing rotational resistance, saving energy and extending the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an anti-accumulation and flow-aiding stirring device proposed in this utility model; Figure 2 This is a schematic diagram of the lifting mechanism of the anti-accumulation and flow-aiding stirring device proposed in this utility model; Figure 3 This is a schematic diagram of the mixing tank, the first rotating mechanism, and the second rotating mechanism of the anti-accumulation and flow-aiding mixing device proposed in this utility model. Figure 4 This is a schematic diagram of the fixing and clamping mechanism of the anti-accumulation and flow-aiding stirring device proposed in this utility model.

[0021] Legend: 1. Ring-shaped base; 2. Clamping mechanism; 201. Cross-shaped outer shell; 202. Central gear; 203. Horizontal movable rod; 204. Connecting block; 205. Curved clamping piece; 206. Pulley block; 207. Vertical movable rod; 208. Spring; 3. Control panel; 4. Lifting mechanism; 401. Square outer shell; 402. Electric hydraulic press; 403. Push rod; 5. Crossbeam; 6. First rotating mechanism; 601. First outer shell; 602. First motor; 603. Bearing; 604. Tank cover; 605. Anchor-type stirring paddle; 7. Mixing tank; 701. Tank body; 702. Guide plate; 703. Groove; 8. Second rotating mechanism; 801. Base plate; 802. Second outer shell; 803. Second motor; 804. Tray; 805. Protrusion. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Please refer to Figures 1 to 4 This utility model provides an anti-accumulation and flow-aiding stirring device, which aims to solve the problem in the prior art that materials are prone to forming flow dead zones and accumulating inside the tank during the stirring process, resulting in uneven mixing.

[0024] like Figure 1 As shown, the anti-accumulation and flow-aiding stirring device includes an annular base 1, which serves as the mounting base for the entire device to provide stable support; the bottom of the square outer shell 401 of the lifting mechanism 4 is fixedly connected to the side surface of the annular base 1; one end of the crossbeam 5 is fixedly installed on the push rod 403 of the lifting mechanism 4, and the other end of the crossbeam 5 is fixedly installed on the first rotating mechanism 6; the second rotating mechanism 8 is installed on the annular base 1 to support and drive the stirring tank 7 to rotate. Through the assembly of the above components, the overall support and transmission frame of the device is formed.

[0025] As one of the core structures of this solution, the device also includes a clamping mechanism 2, which is used to automatically clamp and fix the mixing tank 7 after it is placed, such as... Figure 4As shown, the structure of the clamping mechanism 2 is detailed below: It includes a cross-shaped housing 201, which is fixed to the ring-shaped base 1 and provides installation space and motion guidance for the internal components of the clamping mechanism 2; A central gear 202 is rotatably mounted in the central region of the cross-shaped housing 201; A vertical movable rod 207 is provided with a rack that meshes with the central gear 202, and the bottom of the vertical movable rod 207 is fixedly installed at the end of the base plate 801 of the second rotating mechanism 8, thereby transmitting the vertical displacement of the base plate 801 to the central gear 202. Two horizontal movable rods 203 are provided, each of which is equipped with a rack that meshes with the left and right sides of the central gear 202, so that the horizontal displacement of the horizontal movable rods 203 and the vertical displacement of the vertical movable rods 207 are linked by the rotation of the central gear 202. Connecting block 204, which is used to realize structural transition, has one end fixed to the end of horizontal movable rod 203 away from the central gear 202; Two curved clamping pieces 205, the other ends of which are fixedly installed on the connecting block 204, are used to directly apply clamping force to the tank body 701 of the mixing tank 7; And a spring 208, which is disposed between the base plate 801 and the annular base 1, is used to provide an upward restoring force when the base plate 801 is not compressed, so that the clamping mechanism 2 is in a released state.

[0026] To solve the above-mentioned technical problems, the core of the technical solution of this embodiment is that the mixing tank 7 and the anchor-type mixing blade 605 of the anti-accumulation and flow-aiding mixing device form a specific structural cooperation relationship to generate a unique material flow field during the mixing process.

[0027] Please refer to the following carefully. Figure 3 The core structure will be described in detail below: A spiral guide plate 702 is fixedly installed on the inner surface of the tank body 701 of the mixing tank 7. The guide plate 702 extends spirally along the height direction of the tank body 701. Its function is to generate an axial guiding force on the material inside when the tank body 701 rotates, promoting the up-and-down tumbling and mixing of the material. At the same time, the inner bottom of the tank body 701 is an inverted cone shape. The outline of the inverted cone matches the outer edge trajectory swept by the anchor-type stirring paddle 605 when it rotates. This structural fit can ensure that the anchor-type stirring paddle 605 can scrape the material at the bottom of the tank body 701 when it rotates, thereby physically eliminating the dead corner of accumulation at the bottom center.

[0028] To achieve independent rotation of the mixing tank 7 and the anchor-type agitator 605, the device is equipped with a first rotating mechanism 6 and a second rotating mechanism 8 that are independent of each other; for example Figure 3 As shown, the first rotating mechanism 6 includes a first housing 601, the other end of the crossbeam 5 is fixedly installed on the side surface of the first housing 601, the first motor 602 is installed inside the first housing 601, the output end of the first motor 602 faces downward and is fixedly installed with an anchor-type stirring paddle 605, which is used to drive the anchor-type stirring paddle 605 to rotate clockwise; a bearing 603 is also installed on the lower surface of the first housing 601, and the lid 604 on the top of the mixing tank 7 is rotatably connected to the bearing 603. This structure allows the lid 604 to rotate freely with the rotating mixing tank 7, while keeping the first rotating mechanism 6 relatively stationary.

[0029] The detailed structure of the second rotating mechanism 8 is as follows: Figure 3 As shown, a second outer shell 802 is fixedly installed on the upper surface of the base plate 801. A second motor 803 is installed inside the second outer shell 802. A horizontally placed tray 804 is installed at the output end of the second motor 803. The tray 804 is located on the base plate 801 and is used to directly support the mixing tank 7. In order to achieve reliable torque transmission, a protrusion 805 is fixedly installed on the upper surface of the tray 804. A groove 703 that matches the protrusion 805 is opened on the bottom surface of the outer side of the tank body 701 of the mixing tank 7. When the second motor 803 works, the entire mixing tank 7 is driven to rotate counterclockwise around its central axis through the cooperation of the tray 804, the protrusion 805 and the groove 703.

[0030] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to reduce friction and wear when clamping the rotating mixing tank 7, please refer to... Figure 4 The inner side of the curved clamp 205 is equipped with a pulley group 206, which consists of multiple freely rotatable rollers. In the clamped state, the outer edge of the rollers of the pulley group 206 rolls in contact with the outer surface of the tank body 701 of the mixing tank 7, thereby converting sliding friction into rolling friction.

[0031] As another preferred embodiment, in order to facilitate the lifting and lowering of the stirring head to make it easier to place and remove the stirring tank 7, please refer to... Figure 2 The square housing 401 of the lifting mechanism 4 contains an electric hydraulic press 402. The output end of the electric hydraulic press 402 is fixedly equipped with a telescopic push rod 403. The top of the push rod 403 is hinged to one end of the crossbeam 5. By controlling the electric hydraulic press 402 to extend or retract the push rod 403, the crossbeam 5 and the first rotating mechanism 6 fixed thereon can be driven to complete the overall lifting action.

[0032] In another preferred embodiment, to achieve centralized control of the entire device, the device also includes a control panel 3. The control panel 3 is electrically connected to the electric hydraulic press 402, the first motor 602, and the second motor 803 via circuits. The operator can start or stop each actuator and adjust its operating parameters through the control panel 3. The working principle of this anti-accumulation and flow-aiding stirring device is as follows: When mixing is required, the lifting mechanism 4 is first driven via the control panel 3, causing the push rod 403 of the electric hydraulic press 402 to move upward, lifting the crossbeam 5 and the first rotating mechanism 6 to a predetermined height. Then, the mixing tank 7 loaded with material is placed on the tray 804 of the second rotating mechanism 8. At this time, the weight of the mixing tank 7 is transmitted downward through the tray 804 and the base plate 801, causing the compression spring 208 to deform. The vertical movable rod 207 connected to the base plate 801 moves downward accordingly, and the rack on it drives the central gear 202 to rotate. The rotating central gear 202 then drives the two horizontal movable rods 203 meshing with it to move towards each other, causing the connecting block 204 and the curved clamping piece 205 to automatically clamp the tank body 701 of the mixing tank 7.

[0033] After clamping, the lifting mechanism 4 is lowered again via the control panel 3, allowing the anchor-type stirring paddle 605 to extend into the mixing tank 7, while the tank cover 604 closes. The first motor 602 and the second motor 803 are then activated. The first motor 602 drives the anchor-type stirring paddle 605 to rotate clockwise, radially shearing and mixing the material. Simultaneously, the second motor 803, through the cooperation of the tray 804, protrusion 805, and groove 703, drives the entire mixing tank 7 to rotate counterclockwise. The rotation of the tank 701 drives the spiral guide plate 702 on the inner wall, forcing the material to flow axially from bottom to top. Under the combined action of the dual counter-rotation of the anchor-type stirring paddle 605 and the mixing tank 7, and the axial flow assistance of the guide plate 702, the material forms a complex three-dimensional motion within the tank, effectively eliminating all dead zones. The inverted conical tank bottom, in conjunction with the anchor-type stirring paddle 605, ensures that the material at the bottom is continuously agitated, thus completely solving the problems of material accumulation and adhesion to the walls.

[0034] After mixing is complete, the lifting mechanism 4 lifts the first rotating mechanism 6, and the operator lifts the mixing tank 7 upwards. When the weight of the mixing tank 7 is removed from the base plate 801, the compressed spring 208 returns to its original shape, pushing the base plate 801 and the vertical movable rod 207 upwards to reset. The entire linkage process of the clamping mechanism 2 is reversed, and the curved clamp 205 automatically releases, making it easy and quick to remove the mixing tank 7.

[0035] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A flow-aiding stirring device for preventing accumulation, comprising an annular base (1), wherein a square outer shell (401) of a lifting mechanism (4) is fixedly connected to the side surface of the annular base (1), wherein an electric hydraulic press (402) and a push rod (403) connected to the output end of the electric hydraulic press (402) are provided in the lifting mechanism (4), wherein a second rotating mechanism (8) is also installed on the annular base (1), wherein the second rotating mechanism (8) comprises a base plate (801) for supporting a stirring tank (7), wherein the device further comprises a crossbeam (5), wherein one end of the crossbeam (5) is fixedly installed on the push rod (403), and the other end is fixedly installed on a first rotating mechanism (6), wherein a first motor (602) for driving an anchor-type stirring paddle (605) is provided in the first rotating mechanism (6), wherein the anchor-type stirring paddle (605) is adapted to extend into the stirring tank (7); Its features are, The device further includes a clamping mechanism (2), which includes: A cross-shaped outer casing (201) is fixed to the annular base (1); A central gear (202) is rotatably mounted at the center of the cross-shaped housing (201); A vertical movable rod (207) is provided with a rack that meshes with the central gear (202), and its bottom is fixedly installed at the end of the base plate (801) of the second rotating mechanism (8); A spring (208) is disposed between the base plate (801) and the annular base (1) for deforming when the base plate (801) is compressed; Two horizontal movable rods (203), each of which is provided with a rack that meshes with the central gear (202); And two curved clamping pieces (205), which are respectively fixedly connected to the ends of the two horizontal movable rods (203) away from the central gear (202) by connecting blocks (204).

2. The anti-accumulation and flow-aiding stirring device according to claim 1, characterized in that, The inner surface of the tank body (701) of the mixing tank (7) is fixedly equipped with a spiral guide plate (702); and the bottom of the inner side of the tank body (701) is an inverted cone shape, the outline of which matches the outer edge outline of the anchor-type stirring paddle (605).

3. The anti-accumulation and flow-aiding stirring device according to claim 1, characterized in that, A second housing (802) is fixedly installed on the upper surface of the base plate (801) of the second rotating mechanism (8). A second motor (803) is installed inside the second housing (802). A horizontally placed tray (804) is installed at the output end of the second motor (803). The tray (804) is located on the base plate (801).

4. The anti-accumulation and flow-aiding stirring device according to claim 3, characterized in that, The upper surface of the tray (804) is fixedly installed with a protrusion (805), and the bottom surface of the outer side of the mixing tank (701) is provided with a groove (703) that matches the protrusion (805).

5. The anti-accumulation and flow-aiding stirring device according to claim 1, characterized in that, The first rotating mechanism (6) includes a first housing (601), the other end of the crossbeam (5) is fixedly installed on the side surface of the first housing (601), and the first motor (602) is installed inside the first housing (601).

6. The anti-accumulation and flow-aiding stirring device according to claim 5, characterized in that, A bearing (603) is installed on the lower surface of the first outer shell (601); a lid (604) is provided on the top of the mixing tank (7), and the lid (604) is rotatably connected to the bearing (603).

7. The anti-accumulation and flow-aiding stirring device according to claim 1, characterized in that, The inner side of the curved clamp (205) is equipped with a pulley assembly (206), which is used to roll in contact with the outer surface of the tank body (701) of the mixing tank (7).

8. The anti-accumulation and flow-aiding stirring device according to claim 3, characterized in that, The device also includes a control panel (3), which is electrically connected to the electric hydraulic press (402), the first motor (602) and the second motor (803) via circuits.

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