Concentric double-shaft stirrer

Abstract

The invention belongs to the technical field of stirrers, and particularly relates to a concentric double-shaft stirrer which comprises a console, a moving frame and a stirring component, the moving frame is arranged at the top of the console, and the stirring component is arranged on the inner wall of the moving frame; the axis stirrer is provided with a hollow connecting shaft, a floating sliding disc, a deflection stirring plate and a compression sleeve. According to the device, mixed liquid in the containing cylinder is synchronously stirred through the axis stirrer in the middle and the stirring rotating arms on the two sides, and the axis stirrer in the middle can control the floating sliding disc to slide up and down under the driving action of the drainage net cover, so that the actual rotating point position of deflection stirring is changed; therefore, when actual stirring work is carried out, a one-way vortex is difficult to form at the central part of liquid, so that the problem that the liquid gathered at the axis part is easy to polymerize to cause insufficient stirring is avoided.

Description

Technical Field

[0001] This invention belongs to the field of mixer technology, specifically a concentric twin-shaft mixer. Background Technology

[0002] Currently, concentric twin-shaft dispersing mixers are required in the production of emulsions or adhesives. This advanced mixing equipment features two concentric mixing shafts. Its core function lies in the efficient mixing and dispersion of materials through the coordinated operation of the two shafts. The two shafts are located at the center of the mixing tank; one shaft primarily handles high-speed dispersion, while the other performs low-speed mixing. This unique design allows it to adapt to the processing needs of various materials with different properties.

[0003] When this type of mixer stirs the liquid inside the cylinder, the rods on both sides cause the liquid inside the cylinder to form a centripetal vortex. This causes the liquid that accumulates at the center of the shaft to easily aggregate, resulting in insufficient stirring. Therefore, improvements are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is: a concentric twin-shaft mixer, comprising a control console, a movable frame, and a mixing component, wherein the movable frame is disposed on the top of the control console, and the mixing component is disposed on the inner wall of the movable frame.

[0005] The stirring component includes a axial stirrer and a top conveyor. The axial stirrer has a hollow coupling, a floating slide, a deflecting stirring plate, and a compression sleeve.

[0006] The inner wall of the floating slide is sleeved with the outer surface of the hollow connecting shaft at its axial center, and the axial center of the deflecting stirring plate is rotatably connected to the inner cavity of the floating slide.

[0007] The hollow coupling has a uniformly spaced flow-guiding groove in the middle of its outer surface. The compression sleeve is fitted onto the middle of the outer surface of the hollow coupling, completely enclosing the flow-guiding groove. The upper and lower ends of the compression sleeve are respectively connected to the shaft center of the floating slides on both sides. Therefore, the compression sleeve and the deflecting agitator always maintain the distance between the shaft center sleeves. The top conveyor drives the compression sleeve to expand and contract by controlling the pressure on the flow-guiding groove of the hollow coupling, thereby driving the floating slides to slide up and down in contact with the hollow coupling.

[0008] Furthermore, the top conveyor includes:

[0009] A hollow torque rod, the top of which is rotatably connected to the inner wall of the movable frame, and a drainage mesh cover is inserted into the bottom of the hollow torque rod. The drainage mesh cover adsorbs air through the external mesh holes to pressurize the inside of the hollow coupling. An outer cover top cover is inserted into the bottom of the drainage mesh cover.

[0010] The main feed inlet is located on the left side of the inner cavity of the outer cover.

[0011] The secondary feed inlet is located on the right side of the inner cavity of the outer cover.

[0012] Furthermore, the top conveyor also includes:

[0013] A filling partition, the outer surface of which is engaged with the inner wall of the outer cover top cover;

[0014] An adapter plate, wherein the outer surface of the adapter plate is inserted into the inner wall of the filling partition;

[0015] A liquid detection ring, wherein the outer surface of the liquid detection ring is inserted into the inner wall of the filling partition;

[0016] The sensing bottom ring has its outer surface inserted into the lower surface of the filling partition, and its inner cavity is inserted into the inner cavity of the liquid detection ring through an inner guide plate. The liquid raw materials added from the main feed port and the auxiliary feed port will first drip onto the sensing area on the liquid detection ring, and then enter the container below. The feeding operation is fed back through the sensing bottom ring.

[0017] Furthermore, the stirring component also includes:

[0018] The filter screen component is located at the axial center of the inner wall of the filling partition;

[0019] Side-shaft agitators are symmetrically arranged on the left and right sides of the filter screen component.

[0020] Furthermore, the filter component includes:

[0021] A container turntable, wherein the outer surface of the container turntable is engaged with the inner wall of the adapter plate via a guide groove;

[0022] An inner filter disc is rotatably connected to the inner wall of the container turntable on its side, and a secondary torque motor is inserted into the axis of the inner filter disc.

[0023] Furthermore, the filter component also includes:

[0024] The upper mesh cover has its inner wall axially engaged with the outer surface of the auxiliary torque motor shaft, and the bottom of the upper mesh cover is inserted into the upper surface of the container turntable via an elastic soft sleeve.

[0025] Thrust balls are evenly distributed in the lower part of the secondary torque motor housing through grooves;

[0026] The force-driven push balls are evenly distributed on the upper surface of the upper screen cover near the axis of the auxiliary torque motor through the slots. When the auxiliary torque motor drives the container turntable, the inner filter disc and the upper screen cover to rotate synchronously through its rotating shaft, the axis of the upper screen cover will also continuously contact and squeeze with the push balls at the bottom of the auxiliary torque motor housing through the force-driven push balls. At this time, the elastic soft sleeve at the bottom of the upper screen cover cooperates to squeeze, causing the upper screen cover to slide relative to each other in the vertical direction.

[0027] Furthermore, the side-shaft agitator includes:

[0028] A stirring arm, the top of which is inserted with an anchoring end, and the outer surface of the anchoring end is inserted into the inner cavity of the container turntable through a fixing groove;

[0029] The traction device is installed on the inner wall of the mixing arm, and the inner cavity of the traction device is slidably connected with a traction rope;

[0030] An independent agitator is located at the end of the traction rope away from the traction device, and the outer surface of the independent agitator is slidably connected to the inner wall of the agitator arm.

[0031] Furthermore, the independent stirrer includes:

[0032] An outer sliding sleeve, the outer surface of which is slidably connected to the inner wall of the stirring arm;

[0033] The inner rotating sleeve is rotatably connected to the outer surface of the inner rotating sleeve via a rotating wheel at the axial center of the inner cavity of the outer sliding sleeve, and a clamp is provided at the top of the inner rotating sleeve.

[0034] The stirring plate has its outer surface inserted into the top of the inner rotating sleeve via a clamp. The outer sliding sleeve drives the inner rotating sleeve to rotate independently, thereby causing the stirring plate to rotate.

[0035] The beneficial effects of this invention are as follows:

[0036] 1. This device uses a central agitator and two side agitating arms to simultaneously agitate the liquid mixture inside the container. Because the central agitator can control the floating slide to slide up and down under the drive of the guide screen, thereby changing the actual rotation point of the agitator, it is difficult for a unidirectional vortex to form in the center of the liquid during actual agitation. This avoids the problem of insufficient agitation caused by the liquid accumulating in the central part of the agitator.

[0037] 2. When adding the raw liquid into the container through the feed ports on both sides, the raw liquid will pass through the liquid detection ring, so the flow rate of the internal feed can be indirectly observed through the bottom sensing ring. This replaces the camera to monitor the total amount of the stirred liquid inside the closed container. At the same time, the slanted filling baffle can guide the added liquid into the inner filter plate for filtration, preventing the added liquid from having clumps or impurities that contaminate the stirred solution.

[0038] 3. The stirring component can be rotated as a whole by the motor component in the top moving frame to perform coarse stirring of the solution inside the container. Then, the secondary torque motor performs fine stirring of the solution. During fine stirring, the top conveyor part remains stationary, which makes the device and the container more stable. When the secondary torque motor is working, the upper screen will slide back and forth in the vertical direction due to the force, thereby pulling out the residue stuck inside the inner filter plate and thus clearing the mesh of the inner filter plate.

[0039] 4. When the side-shaft agitator rotates, the internal traction device can drive the independent agitator to slide against the inner wall of the agitator arm. The independent agitator itself can also drive the agitator plate to rotate by rotating the inner sleeve through the outer sliding sleeve, thereby changing the actual deflection position of the agitator plate. Combined with the rotation effect of the agitator arm and the traction effect of the traction device, the liquid in the cylinder forms irregular small vortices on the side, further ensuring the randomness of the agitation and avoiding the problem of insufficient agitation of liquid accumulating on the cylinder wall. Attached Figure Description

[0040] Figure 1 This is the front view of the present invention;

[0041] Figure 2 This is a cross-sectional view of the present invention;

[0042] Figure 3 This is a cross-sectional view of the stirring component of the present invention;

[0043] Figure 4 This is a cross-sectional view of the compression sleeve of the present invention;

[0044] Figure 5 This is a cross-sectional view of the top cover of the outer casing of the present invention;

[0045] Figure 6 This is a cross-sectional view of the container turntable of the present invention;

[0046] Figure 7 This is a cross-sectional view of the stirring arm of the present invention;

[0047] Figure 8 This is a schematic diagram of the independent stirrer of the present invention.

[0048] In the diagram: 1. Control console; 2. Moving frame; 3. Mixing component; 31. Top conveyor; 32. Filter screen component; 33. Shaft agitator; 34. Side shaft agitator; 331. Hollow coupling shaft; 332. Floating slide plate; 333. Deflecting mixing plate; 334. Drainage groove; 335. Compression sleeve; 311. Hollow torque rod; 312. Drainage screen cover; 313. Outer cover top cover; 314. Main feed port; 315. Secondary feed port; 16. Adaptor plate; 317. Filling partition; 318. Liquid detection ring; 319. Induction bottom ring; 321. Container turntable; 322. Inner filter disc; 323. Secondary torque motor; 324. Upper mesh cover; 325. Thrust ball; 326. Force-bearing push ball; 341. Stirring arm; 342. Anchoring end; 343. Tractor; 4. Independent stirrer; 41. Outer sliding sleeve; 42. Inner rotating sleeve; 43. Stirring plate. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0050] Example 1, please refer to Figures 1-4 The present invention provides a technical solution: a concentric twin-shaft mixer, comprising a control console 1, a movable frame 2, and a mixing component 3, wherein the movable frame 2 is disposed on the top of the control console 1, and the mixing component 3 is disposed on the inner wall of the movable frame 2.

[0051] The mixing component 3 includes a axial agitator 33 and a top conveyor 31. The axial agitator 33 has a hollow connecting shaft 331, a floating slide 332, a deflecting stirring plate 333, and a compression sleeve 335.

[0052] The inner wall of the floating slide 332 is sleeved with the outer surface of the hollow connecting shaft 331 at its axial center, and the axial center of the deflecting stirring plate 333 is rotatably connected with the inner cavity of the floating slide 332.

[0053] A flow-guiding groove 334 is evenly provided in the middle of the outer surface of the hollow coupling 331. A compression sleeve 335 is sleeved in the middle of the outer surface of the hollow coupling 331. The compression sleeve 335 completely wraps the flow-guiding groove 334 of the hollow coupling 331. The upper and lower ends of the compression sleeve 335 are respectively sleeved with the shaft center of the floating slide 332 on both sides. Therefore, the compression sleeve 335 and the deflecting stirring plate 333 always maintain the distance between the shaft center sleeves. The top conveying component 31 drives the compression sleeve 335 to expand and contract by controlling the pressure of the flow-guiding groove 334 of the hollow coupling 331, thereby driving the floating slide 332 to slide up and down in contact with the hollow coupling 331.

[0054] Top conveyor 31 includes:

[0055] Hollow torque rod 311, the top of hollow torque rod 311 is rotatably connected to the inner wall of the movable frame 2, and a drainage mesh cover 312 is inserted into the bottom of hollow torque rod 311. The drainage mesh cover 312 adsorbs air through the external mesh and pressurizes the inside of hollow coupling 331. An outer cover top cover 313 is inserted into the bottom of drainage mesh cover 312.

[0056] The main feed inlet 314 is located on the left side of the inner cavity of the outer cover 313;

[0057] The auxiliary feed port 315 is located on the right side of the inner cavity of the outer cover 313.

[0058] Top conveyor 31 also includes:

[0059] The filling partition 317 is engaged with the inner wall of the outer cover 313 on its outer surface.

[0060] The adapter plate 316 is inserted into the inner wall of the filling partition 317.

[0061] Liquid detection ring 318, the outer surface of liquid detection ring 318 is inserted into the inner wall of filling partition 317;

[0062] The outer surface of the sensing bottom ring 319 is inserted into the lower surface of the filling partition 317, and the inner cavity of the sensing bottom ring 319 is inserted into the inner cavity of the liquid detection ring 318 through the inner guide plate. The liquid raw materials added from the main feed port 314 and the auxiliary feed port 315 will first drip onto the sensing area on the liquid detection ring 318, and then enter the container below. The feeding operation is fed back through the sensing bottom ring 319.

[0063] After the operator drives the stirring component 3 inside the moving frame 2 through the control console 1 to be inserted into the container, the outer cover 313 completely covers the top of the container. Then, the main feed port 314 and the auxiliary feed port 315 on both sides are opened to add different liquid raw materials. Then, the moving frame 2 drives the hollow torque rod 311 to rotate the stirring component 3 as a whole to achieve coarse stirring.

[0064] After the coarse mixing is completed, fine mixing is carried out. At this time, the hollow torque rod 311 is stopped from being twisted, the outer cover 313 is completely placed on the top of the container, and then the internal auxiliary torque motor 323 starts to work, synchronously twisting the container turntable 321 and the inner filter disc 322, thereby driving the side shaft agitators 34 and the shaft agitator 33 on both sides to carry out the mixing work. Moreover, the mixing direction is opposite to the coarse mixing direction, until the internal liquid is evenly mixed.

[0065] When the axial agitator 33 rotates, the floating slides 332 on the upper and lower sides stir the axial part of the stirring liquid through the deflecting agitator 333. The top drain net cover 312 causes the compression sleeve 335 to expand and contract through intermittent pressure and suction, thereby achieving the effect of pulling the floating slides 332 to slide up and down along the outer surface of the hollow connecting shaft 331, thereby changing the actual stirring part of the deflecting agitator 333. In conjunction with the side shaft agitators 34 on both sides, the vortex generated in the middle of the stirring liquid is dispersed.

[0066] When the original liquid is added to the container through the feed ports on both sides, the liquid will flow down along the liquid detection ring 318, and then pass through the upper mesh cover 324 and the inner filter plate 322 in sequence before dripping into the container. Therefore, during actual liquid addition, the sensing bottom ring 319 located at the bottom of the filling partition 317 will determine the liquid flow rate according to the actual flow rate of the liquid, thereby achieving the effect of controlling the amount of liquid added.

[0067] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: based on embodiment 1, the stirring component 3 further includes:

[0068] The filter element 32 is disposed at the axial center of the inner wall of the filling partition 317;

[0069] Side-shaft agitators 34 are symmetrically arranged on the left and right sides of filter screen component 32.

[0070] Filter component 32 includes:

[0071] The outer surface of the container turntable 321 is engaged with the inner wall of the adapter plate 316 through a guide groove.

[0072] The inner filter disc 322 is rotatably connected to the inner wall of the container turntable 321 on its side, and a secondary torque motor 323 is inserted into the shaft of the inner filter disc 322.

[0073] Filter component 32 also includes:

[0074] The upper mesh cover 324 has its inner wall axis engaged with the outer surface of the shaft of the auxiliary torque motor 323, and the bottom of the upper mesh cover 324 is inserted into the upper surface of the container turntable 321 through an elastic soft sleeve.

[0075] The thrust balls 325 are evenly arranged in the lower part of the housing of the auxiliary torque motor 323 through grooves;

[0076] The force-bearing push ball 326 is evenly set in the slot on the upper surface of the upper screen cover 324 near the axis of the auxiliary torque motor 323. When the auxiliary torque motor 323 drives the container turntable 321, the inner filter disc 322 and the upper screen cover 324 to rotate synchronously through its rotating shaft, the axis of the upper screen cover 324 will also continuously contact and squeeze with the push ball 325 at the bottom of the housing of the auxiliary torque motor 323 through the force-bearing push ball 326. At this time, the elastic soft sleeve at the bottom of the upper screen cover 324 cooperates to squeeze, causing the upper screen cover 324 to slide relative to each other in the vertical direction.

[0077] Side-shaft stirrer 34 includes:

[0078] A stirring arm 341 has an anchoring end 342 inserted into its top, and the outer surface of the anchoring end 342 is inserted into the inner cavity of the container turntable 321 through a fixing groove.

[0079] The traction device 343 is installed on the inner wall of the stirring arm 341, and the inner cavity of the traction device 343 is slidably connected with a traction rope.

[0080] An independent agitator 4 is located at the end of the traction rope away from the traction device 343, and the outer surface of the independent agitator 4 is slidably connected to the inner wall of the agitator arm 341.

[0081] Independent mixer 4 includes:

[0082] The outer sliding sleeve 41 has its outer surface slidably connected to the inner wall of the stirring arm 341.

[0083] The inner rotating sleeve 42 and the outer sliding sleeve 41 are rotatably connected at the axis of the inner cavity to the outer surface of the inner rotating sleeve 42 via a rotating wheel, and a clamp is provided at the top of the inner rotating sleeve 42.

[0084] The outer surface of the stirring plate 43 is inserted into the top of the inner rotating sleeve 42 by a clamp. The outer sliding sleeve 41 drives the inner rotating sleeve 42 to rotate independently, thereby driving the stirring plate 43 to rotate.

[0085] When the auxiliary torque motor 323 rotates, the container turntable 321 and the inner filter disc 322 will rotate stably. However, the upper mesh cover 324 will slide back and forth in the direction of adhering to the upper surface of the inner filter disc 322 and away from the upper surface of the inner filter disc 322 under the pushing force of the force-driven ball 326 and the elastic force of the bottom elastic soft sleeve. This will pull out the residue stuck inside the inner filter disc 322 upwards, thereby clearing the mesh of the inner filter disc 322.

[0086] When the side-shaft agitator 34 rotates, the internal traction device 343 can drive the independent agitator 4 to slide against the inner wall of the agitator arm 341. The independent agitator 4 can also drive the agitator plate 43 to rotate by rotating the inner rotating sleeve 42 through the outer sliding sleeve 41, thereby changing the actual deflection position of the agitator plate 43. Combined with the rotation effect of the agitator arm 341 and the traction effect of the traction device 343, the liquid in the cylinder forms irregular small vortices on the side, further ensuring the randomness of the agitation and avoiding the problem of insufficient agitation of liquid accumulating on the cylinder wall.

[0087] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A concentric twin-shaft mixer, comprising a control console (1), a movable frame (2), and a mixing component (3), wherein the movable frame (2) is disposed on the top of the control console (1), and the mixing component (3) is disposed on the inner wall of the movable frame (2): Its features are: The stirring component (3) includes a axial stirrer (33) and a top conveyor (31). The axial stirrer (33) has a hollow connecting shaft (331), a floating slide (332), a deflecting stirring plate (333), and a compression sleeve (335). The inner wall of the floating slide (332) is sleeved with the outer surface of the hollow connecting shaft (331), and the axis of the deflecting stirring plate (333) is rotatably connected to the inner cavity of the floating slide (332). The hollow connecting shaft (331) has a uniformly distributed drainage groove (334) in the middle of its outer surface. The compression sleeve (335) is sleeved on the middle of the outer surface of the hollow connecting shaft (331), and the upper and lower ends of the compression sleeve (335) are respectively sleeved with the shaft center of the floating slides (332) on both sides. The top conveying component (31) drives the compression sleeve (335) to expand and contract by controlling the pressure of the drainage groove (334) of the hollow connecting shaft (331), thereby driving the floating slides (332) to slide up and down in contact with the hollow connecting shaft (331).

2. The concentric twin-shaft mixer according to claim 1, characterized in that: The top conveyor (31) includes: Hollow torque rod (311), the top end of which is rotatably connected to the inner wall of the movable frame (2), and a drainage net cover (312) is inserted into the bottom end of the hollow torque rod (311), and an outer cover top cover (313) is inserted into the bottom of the drainage net cover (312). The main feed inlet (314) is located on the left side of the inner cavity of the outer cover (313); The secondary feed inlet (315) is located on the right side of the inner cavity of the outer cover (313).

3. The concentric twin-shaft mixer according to claim 2, characterized in that: The top conveyor (31) also includes: A filling partition (317) is provided, the outer surface of which is engaged with the inner wall of the outer cover top cover (313); An adapter plate (316) is inserted into the inner wall of a filling partition (317) on its outer surface. Liquid detection ring (318), the outer surface of which is inserted into the inner wall of filling partition (317); The sensing bottom ring (319) has its outer surface inserted into the lower surface of the filling partition (317), and its inner cavity is inserted into the inner cavity of the liquid detection ring (318) through the inner guide plate.

4. The concentric twin-shaft mixer according to claim 3, characterized in that: The stirring component (3) further includes: The filter element (32) is located at the axial center of the inner wall of the filling partition (317); Side-shaft agitators (34) are symmetrically arranged on the left and right sides of the filter screen component (32).

5. The concentric twin-shaft mixer according to claim 4, characterized in that: The filter component (32) includes: The outer surface of the container turntable (321) is engaged with the inner wall of the adapter plate (316) through a guide groove; An inner filter disc (322) is rotatably connected to the inner wall of the container turntable (321) on its side, and a secondary torque motor (323) is inserted into the axis of the inner filter disc (322).

6. The concentric twin-shaft mixer according to claim 5, characterized in that: The filter component (32) further includes: The upper mesh cover (324) has its inner wall axially engaged with the outer surface of the shaft of the auxiliary torque motor (323), and the bottom of the upper mesh cover (324) is inserted into the upper surface of the container turntable (321) through an elastic soft sleeve. The thrust balls (325) are evenly arranged in the lower part of the housing of the auxiliary torque motor (323) through grooves; The force-driven ball (326) is evenly set at the axis near the auxiliary torque motor (323) on the upper surface of the upper mesh cover (324) through the slot.

7. The concentric twin-shaft mixer according to claim 5, characterized in that: The side-shaft agitator (34) includes: A stirring arm (341) is provided with an anchoring end (342) inserted into its top, and the outer surface of the anchoring end (342) is connected to the inner cavity of the container turntable (321) through a fixing groove. The traction device (343) is installed on the inner wall of the stirring arm (341), and the inner cavity of the traction device (343) is slidably connected with a traction rope; An independent agitator (4) is located at the end of the traction rope away from the traction device (343), and the outer surface of the independent agitator (4) is slidably connected to the inner wall of the agitator arm (341).

8. The concentric twin-shaft mixer according to claim 7, characterized in that: The independent stirrer (4) includes: The outer sliding sleeve (41) has its outer surface slidably connected to the inner wall of the stirring arm (341); The inner rotating sleeve (42) is rotatably connected to the outer surface of the inner rotating sleeve (42) via a rotating wheel at the axial center of the inner cavity of the outer sliding sleeve (41), and a clamp is provided at the top of the inner rotating sleeve (42). The outer surface of the stirring plate (43) is inserted into the top of the inner rotating sleeve (42) by a clamp.

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