Special spiral stirrer for mixing powder and particle materials

Abstract

The utility model discloses a special spiral stirrer for mixing powder and particle materials, which comprises two side frames and a vibrating mechanism, supporting strips are fixedly arranged in the side frames, and a stirring drum for containing materials is rotatably arranged between the two supporting strips. According to the mixing device, the first screw rod and the second screw rod which are arranged at the bottom of the top cover work cooperatively, materials in the mixing drum can be stirred and mixed in all directions, it is ensured that the materials are evenly mixed, and the mixing efficiency and quality are improved; compared with the prior art, composite motion of revolution and rotation is achieved, the stirring effect is further enhanced, materials are mixed more evenly and meticulously, materials adhering to the inner wall can be effectively cleaned through a vibration mechanism arranged on the outer wall of the stirring barrel, the trouble of manual cleaning is reduced, the self-cleaning capacity and maintenance efficiency of equipment are improved, and meanwhile the discharging speed can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of material mixing, in particular to a special spiral mixer for mixing powder and granular materials. Background Art

[0002] Powder and particle mixing technology has been widely used in various industries. From the early simple mixing equipment to today's efficient and intelligent mixing systems, powder and particle mixing technology has undergone significant development. As one of the most important equipment for powder and particle mixing, the technology of spiral mixers has also been continuously improved and perfected.

[0003] After searching, the utility model with the announcement number CN221021832U discloses a masterbatch mixer, which has the following disadvantages during use:

[0004] During use, the material is pushed to the discharge pipe by the scraper to achieve discharge. The discharge speed is not only slow, but also inconvenient to discharge the material completely.

[0005] Furthermore, it is not easy to maintain after the internal stirring spoon is damaged.

[0006] Therefore, those skilled in the art provide a special spiral mixer for mixing powder and granular materials to solve the problems raised in the above background technology. Utility Model Content

[0007] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a special spiral mixer for mixing powder and granular materials.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A special spiral mixer for mixing powder and granular materials, comprising two side frames and a vibrating mechanism, wherein support bars are fixedly provided in the side frames, a mixing drum for containing materials is rotatably provided between the two support bars, a top bar is fixedly provided at the top end of the side frames, a guide rod is fixedly provided between the top bar and the support bars, a top cover is slidably provided on a plurality of the guide rods, and a first spiral rod and a second spiral rod are rotatably provided at the bottom of the top cover for stirring and mixing the materials;

[0010] A screw is provided through the rotating rod between one of the support bars and the top bar, the top cover is threadedly sleeved on the screw, a third motor is fixedly provided at the bottom of the support bar, and the output end of the third motor is fixedly connected to the screw for driving the top cover to move up and down;

[0011] A second motor is fixedly provided on the top of the top cover, and an output end of the second motor is transmission-connected to the first screw rod and the second screw rod to provide power therefor. A feed hopper for feeding is provided on the top of the top cover;

[0012] A first motor is provided on one side of one of the support bars, and an output end of the first motor is connected to the rotating shaft of the mixing drum, so as to drive the mixing drum to flip and dump the materials;

[0013] The vibration mechanism is arranged on the outer wall of the mixing drum and can be used in conjunction with the first screw rod after being turned over to knock the mixing drum to clean the materials adhered to the inner wall.

[0014] As a further solution of the present invention, the vibration mechanism includes a fixed block fixed on the outer wall of the mixing drum, a knocking rod is slidingly provided in the fixed block, a sliding bar is fixedly provided at one end of the knocking rod, a cam is rotatably provided on the top of the fixed block for use in conjunction with the knocking rod, a tension spring is provided on the outer wall of the knocking rod, and the two ends of the tension spring are respectively fixedly connected to the side close to each other of the sliding bar and the fixed block, and the cam is transmission-connected to the first screw rod to provide power for the cam.

[0015] As a further solution of the present invention, a rotating shaft is rotatably provided on the top of the fixed block, the cam is fixedly sleeved on the rotating shaft, and the rotating shaft is clamped with the first screw rod.

[0016] As a further solution of the present invention, an insert block is fixedly provided at the bottom of the first spiral rod, and a socket for plugging with the insert block is provided at the top of the rotating shaft.

[0017] As a further solution of the present invention, the output of the second motor passes through the bottom end of the top cover and is fixedly connected to the first screw rod, which is used to drive the first screw rod to rotate. A rotating plate is fixedly sleeved on the outer wall of the first screw rod, and the second screw rod passes through and rotates on the rotating plate.

[0018] As a further solution of the present invention, an inner gear ring is fixedly provided on the top of the top cover, a gear meshing with the inner gear ring is fixedly provided on the outer wall of the top end of the second screw rod, and the rotating plate is rotatably provided on the bottom of the inner gear ring to drive the second screw rod to revolve and rotate.

[0019] As a further solution of the present invention, a reducer is fixedly provided on the outer side of one of the support bars, the output end of the reducer is fixedly connected to the rotating shaft of the mixing drum, and the input end of the reducer is fixedly connected to the output end of the first motor for locking the mixing drum.

[0020] As a further solution of the present invention, the bottom of the mixing drum is arc-shaped.

[0021] The beneficial effects of the utility model are:

[0022] 1. The first screw and the second screw arranged at the bottom of the top cover work together to stir and mix the materials in the mixing drum in all directions, ensuring that the materials are mixed evenly, improving the mixing efficiency and quality. The second screw realizes the compound motion of revolution and rotation through the engagement of the gear and the inner gear ring and the setting of the rotating plate, further enhancing the stirring effect and making the material mixing more uniform and detailed.

[0023] 2. By using the third motor to drive the screw to rotate, the top cover is driven to slide on the guide rod, realizing the automatic lifting and lowering adjustment of the top cover and the stirring component. This design facilitates the adjustment of the stirring depth and intensity according to the material quantity or mixing requirements during the stirring process, thereby improving the flexibility and adaptability of the equipment.

[0024] 3. Through the vibration mechanism arranged on the outer wall of the mixing drum, it can cooperate with the work of the first screw rod after the mixing drum is turned over, and the knocking rod is driven by the cam to knock on the inner wall of the mixing drum, effectively cleaning the material adhering to the inner wall, reducing the trouble of manual cleaning, improving the self-cleaning ability and maintenance efficiency of the equipment, and at the same time accelerating the discharge speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional structural diagram of a special spiral mixer for mixing powder and granular materials proposed in the utility model;

[0026] Figure 2 This is a three-dimensional structural diagram from another perspective of a special spiral mixer for mixing powder and granular materials proposed in the utility model;

[0027] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0028] Figure 4 This is a schematic diagram of the screw rod installation structure of a special spiral mixer for mixing powder and granular materials proposed by the utility model.

[0029] In the figure: 1. Side frame; 2. Support bar; 3. Top bar; 4. Guide rod; 5. Screw; 6. Top cover; 7. Feed hopper; 8. Reducer; 9. First motor; 10. Mixing drum; 11. Second motor; 12. Third motor; 13. First screw rod; 14. Second screw rod; 15. Fixed block; 16. Knocking rod; 17. Sliding bar; 18. Tension spring; 19. Rotating shaft; 20. Cam; 21. Socket; 22. Insert block; 23. Gear; 24. Internal gear ring; 25. Rotating plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. It should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", and "set" should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] Reference Figures 1-4 A special spiral mixer for mixing powder and granular materials includes two side frames 1, with support bars 2 fixed inside the side frames 1 by welding or bolting. The two support bars 2 are parallel and spaced a certain distance apart, and are used to support a mixing drum 10. The ends of the mixing drum 10 are rotatably mounted between the two support bars 2 via bearing seats, allowing it to rotate freely.

[0032] A top bar 3 is welded or bolted to the top of the side frame 1, parallel to and spaced apart from the support bars 2. Multiple guide rods 4 are welded or bolted vertically between the top bar 3 and the support bars 2, maintaining parallel and evenly spaced distribution. A top cover 6 is slidably mounted on the guide rods 4. This cover has sliding holes that match the guide rods 4, allowing it to slide up and down along the guide rods 4.

[0033] At the bottom of the top cover 6, a first screw 13 and a second screw 14 are rotatably mounted via a bearing block. These screws are arranged in a staggered or parallel arrangement to achieve a better mixing effect during stirring. A second motor 11 is fixedly mounted at the top center of the top cover 6. The output shaft of the second motor 11 extends through the bottom of the top cover 6 and is directly fixedly connected to the top of the first screw 13, thereby driving the rotation of the first screw 13.

[0034] To drive the top cover 6 up and down, a screw rod 5 is rotatably installed between one of the support bars 2 and the top bar 3. The bottom of the screw rod 5 rotates between the support bars 2 and the top bar 3 via a bearing seat. The top cover 6 is provided with a threaded hole that matches the screw rod 5 and is threadedly mounted on the screw rod 5. A third motor 12 is fixed to the bottom of the support bar 2. The output shaft of the third motor 12 is fixedly connected to the bottom of the screw rod 5. The forward and reverse rotation of the third motor 12 realizes the raising and lowering of the top cover 6.

[0035] In order to feed materials, a feed hopper 7 is fixedly provided at the top center of the top cover 6 , and the bottom of the feed hopper 7 is communicated with the interior of the top cover 6 to facilitate the entry of materials into the mixing drum 10 .

[0036] To tilt the mixing drum 10, a reducer 8 is fixedly mounted on the outside of one of the support bars 2. The input end of the reducer 8 is fixedly connected to the output end of the first motor 9 via a coupling. The output end of the reducer 8 is fixedly connected to the rotating shaft of the mixing drum 10 via a drive shaft. Driven by the first motor 9, the reducer 8 reduces speed and increases torque, which drives the mixing drum 10 to rotate and dump the material.

[0037] Regarding the vibration mechanism, a fixed block 15 is fixedly provided on the outer wall of the mixing drum 10 by welding or bolt connection, and a knocking rod 16 is slidably provided in the fixed block 15. One end of the knocking rod 16 extends out of the fixed block 15, and a sliding bar 17 is fixedly provided on the other end. At the top of the fixed block 15, a rotating shaft 19 is rotatably provided through a bearing seat, and a cam 20 is fixedly sleeved on the rotating shaft 19, and the profile of the cam 20 matches the sliding path of the knocking rod 16. A tension spring 18 is sleeved on the outer wall of the knocking rod 16, and the two ends of the tension spring 18 are respectively fixedly connected to the sliding bar 17 and the side of the fixed block 15 close to each other, providing a reset force for the knocking rod 16. In order to realize the transmission connection between the cam 20 and the first screw rod 13, an insert block 22 is fixedly provided at the bottom of the first screw rod 13, and a socket 21 matching the insert block 22 is provided at the top of the rotating shaft 19. By plugging the insert block 22 into the socket 21, the cam 20 is driven to rotate when the first screw rod 13 rotates.

[0038] To achieve both orbital and autorotational motion of the second screw 14, an internal gear ring 24 is fixedly mounted on the top of the top cover 6. A gear 23, meshing with the internal gear ring 24, is fixedly mounted on the outer wall of the top end of the second screw 14. Furthermore, a rotating plate 25 is fixedly mounted on the outer wall of the first screw 13. The bottom of the rotating plate 25 is pivotally mounted on the bottom of the internal gear ring 24 via a bearing seat. The second screw 14 is pivotally mounted on the rotating plate 25. As the first screw 13 rotates, the rotating plate 25 drives the second screw 14 to rotate synchronously, achieving autorotation. Simultaneously, due to the meshing action of the gear 23 and the internal gear ring 24, the second screw 14 also orbits around the center of the top cover 6, further enhancing the stirring effect.

[0039] Finally, the bottom of the mixing drum 10 is designed to be arc-shaped, which is beneficial to the flow and mixing of materials during the mixing process, and also facilitates the smooth discharge of materials during pouring.

[0040] Working principle: When in use, the device is powered on, and materials are sequentially added into the mixing drum 10 through the feed hopper 7. At the same time, the second motor 11 is started to drive the first screw rod 13 to rotate. The rotation of the first screw rod 13 can drive the rotating plate 25 to rotate. The rotation of the rotating plate 25 can drive the second screw rod 14 to rotate around the first screw rod 13. During the process of the second screw rod 14 rotating around the first screw rod 13, the second screw rod 14 can be driven to rotate through the inner gear ring 24 and the gear 23, so that the second screw rod 14 revolves around the first screw rod 13 while rotating, thereby stirring and mixing the materials.

[0041] After the mixing is completed, the third motor 12 is started to drive the screw 5 to rotate. The rotation of the screw 5 can drive the top cover 6 to move upward on the guide rod 4, driving the first screw 13 and the second screw 14 away from the mixing drum 10 until it rises to a safe height, and the first motor 9 is started to drive the reducer 8 to rotate. The rotation of the reducer 8 can drive the mixing drum 10 to flip. During the flipping process, the material is automatically dumped out until it rotates to a certain angle, and the third motor 12 is started again to rotate in the opposite direction, driving the first screw 13 to move downward, which can drive the plug 22 to be inserted into the socket 21. At this time, the second motor 11 is started again to drive The first screw rod 13 rotates, which can drive the rotating shaft 19 to rotate through the insert block 22 and the insert hole 21. The rotation of the rotating shaft 19 can drive the cam 20 to rotate. When the convex part of the cam 20 contacts the sliding bar 17, it can drive the sliding bar 17 to move. The movement of the sliding bar 17 can drive the knocking rod 16 to move and stretch the tension spring 18. When the convex part of the cam 20 moves away from the sliding bar 17, the knocking rod 16 can return to its original position under the action of the tension spring 18 and knock the fixed block 15, which can cause the mixing drum 10 to vibrate, shake off the material on the inner wall of the mixing drum 10, and drive the sliding bar 17 to approach the cam 20.

[0042] After unloading is completed, the third motor 12 is started to drive the top cover 6 to move upward, so that the insert block 22 is away from the socket 21 and rises to a safe height, and then the first motor 9 is started to rotate in the opposite direction to drive the mixing drum 10 to reset and rotate. Finally, the third motor 12 is started to rotate in the opposite direction to drive the first screw rod 13 and the second screw rod 14 to move into the mixing drum 10, and continue to add materials and stir.

[0043] In this application, the structures and connection relationships that are not described in detail are all prior art, and their structures and principles are well-known technologies and will not be described in detail here.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special spiral mixer for mixing powder and granular materials, comprising two side frames (1) and a vibration mechanism, characterized in that: A support bar (2) is fixedly provided inside the side frame (1), a mixing drum (10) for containing materials is rotatably provided between two of the support bars (2), a top bar (3) is fixedly provided at the top end of the side frame (1), a guide rod (4) is fixedly provided between the top bar (3) and the support bar (2), a plurality of the guide rods (4) are slidably sleeved with a same top cover (6), and a first screw rod (13) and a second screw rod (14) for stirring and mixing materials are rotatably provided at the bottom of the top cover (6); A screw rod (5) is provided through a rotating rod between one of the support bars (2) and the top bar (3), and the top cover (6) is threadedly sleeved on the screw rod (5). A third motor (12) is fixedly provided at the bottom of the support bar (2), and an output end of the third motor (12) is fixedly connected to the screw rod (5) for driving the top cover (6) to move up and down; A second motor (11) is fixedly provided on the top of the top cover (6), and an output end of the second motor (11) is transmission-connected with the first screw rod (13) and the second screw rod (14) to provide power therefor. A feeding hopper (7) for feeding is provided on the top of the top cover (6); A first motor (9) is provided on one side of one of the support bars (2), and an output end of the first motor (9) is connected to a rotating shaft of the mixing drum (10) for driving the mixing drum (10) to flip and dump materials; The vibration mechanism is arranged on the outer wall of the mixing drum (10) and can be used in conjunction with the first screw rod (13) after being turned over to knock the mixing drum (10) to clean the material adhered to the inner wall.

2. A special spiral mixer for mixing powder and granular materials according to claim 1, characterized in that: The vibration mechanism comprises a fixed block (15) fixed on the outer wall of the mixing drum (10), a knocking rod (16) is slidably provided in the fixed block (15), a sliding bar (17) is fixedly provided at one end of the knocking rod (16), a cam (20) used in conjunction with the knocking rod (16) is rotatably provided on the top of the fixed block (15), a tension spring (18) is sleeved on the outer wall of the knocking rod (16), and two ends of the tension spring (18) are respectively fixedly connected to the sliding bar (17) and the side of the fixed block (15) close to each other, and the cam (20) is transmission-connected to the first screw rod (13) to provide power for the cam (20).

3. A special spiral mixer for mixing powder and granular materials according to claim 2, characterized in that: A rotating shaft (19) is rotatably provided at the top of the fixed block (15), the cam (20) is fixedly sleeved on the rotating shaft (19), and the rotating shaft (19) is engaged with the first screw rod (13).

4. A special spiral mixer for mixing powder and granular materials according to claim 3, characterized in that: An inserting block (22) is fixedly provided at the bottom of the first spiral rod (13), and a socket (21) for plugging into the inserting block (22) is provided at the top of the rotating shaft (19).

5. The special spiral mixer for mixing powder and granular materials according to claim 1, characterized in that: The output of the second motor (11) passes through the bottom end of the top cover (6) and is fixedly connected to the first screw rod (13) for driving the first screw rod (13) to rotate. A rotating plate (25) is fixedly sleeved on the outer wall of the first screw rod (13), and the second screw rod (14) passes through and is rotatably arranged on the rotating plate (25).

6. A special spiral mixer for mixing powder and granular materials according to claim 5, characterized in that: An inner gear ring (24) is fixedly provided on the top of the top cover (6), a gear (23) meshing with the inner gear ring (24) is fixedly provided on the outer wall of the top end of the second screw rod (14), and the rotating plate (25) is rotatably provided on the bottom of the inner gear ring (24) to drive the second screw rod (14) to revolve and rotate.

7. The special spiral mixer for mixing powder and granular materials according to claim 1, characterized in that: A reducer (8) is fixedly provided on the outer side of one of the support bars (2), the output end of the reducer (8) is fixedly connected to the rotating shaft of the mixing drum (10), and the input end of the reducer (8) is fixedly connected to the output end of the first motor (9) for locking the mixing drum (10).

8. The special spiral mixer for mixing powder and granular materials according to claim 1, characterized in that: The bottom of the mixing drum (10) is arc-shaped.

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