Multi-stage stirring and mixing device

Abstract

The utility model relates to the technical field of stirring equipment, in particular to a multi-stage stirring and mixing device which comprises a rack, a cylindrical pipe A, a driving component A, a hollow pipe, a driving component B and a rotary material shifting mechanism, two conical cylinders are symmetrically arranged on the rack, and end covers are arranged on the conical cylinders; the two ends of the cylindrical pipe A are rotationally connected with the conical barrels on the corresponding sides correspondingly, and a feeding opening is formed in the cylindrical pipe A; the driving assembly A is arranged on the rack and drives the cylindrical pipe A to rotate; the two ends of the hollow pipe are coaxially connected with the end covers on the corresponding sides respectively, the two ends of the hollow pipe are each provided with a discharging pipe, a feeding port is formed in the hollow pipe, and a double-end auger is coaxially arranged in the hollow pipe; the driving assembly B is arranged on the end cover and drives the double-end auger to rotate; and the rotary material shifting mechanism is arranged between the conical cylinder and the hollow pipe. Raw materials at the bottom layer are circularly guided into the hollow pipe through the rotary material shifting mechanism and are shifted to the two ends by the double-end auger, so that the mixing of the raw materials at all point positions is promoted, and the uniform mixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and in particular to a multi-stage mixing device. Background Technology

[0002] Before processing, plastic raw materials need to be stirred according to requirements. Usually, plastic granules and additives are put into a stirring device together and stirred. After being stirred evenly, they are transferred and processed. However, most existing stirring equipment has a simple structure and low stirring efficiency.

[0003] Chinese patent CN220008409U discloses a multi-stage mixing device for plastic granules. This device uses a planetary gear structure to drive multiple sets of mixing structures to simultaneously mix the raw materials, thereby improving the mixing efficiency of the raw materials.

[0004] However, the device still has shortcomings: it is difficult to quickly exchange the raw materials at the bottom and the upper layers, especially during the mixing of granular raw materials and aqueous raw materials, the aqueous material is very easy to sink to the bottom, resulting in a relatively low efficiency in mixing the raw materials. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a multi-stage stirring and mixing device.

[0006] The technical solution of this utility model is: a multi-stage stirring and mixing device, including a frame, two cones symmetrically arranged on the frame, and an end cap connected to the two cones at their far ends;

[0007] Cylindrical tube A, with its two ends rotatably connected to the corresponding conical cylinders, and the interior of cylindrical tube A communicating with the interior of the conical cylinders, with a feed inlet provided on cylindrical tube A;

[0008] Drive component A is mounted on the frame and drives the cylindrical tube A to rotate.

[0009] Hollow tube, the hollow tube is located inside the conical tube and cylindrical tube A. The two ends of the hollow tube are coaxially connected to the end caps on the corresponding sides. A feed pipe is set at each end of the hollow tube, and a feed port is set in the center of the hollow tube. A double-headed auger is coaxially set inside the hollow tube and rotatably connected to the end cap.

[0010] Drive component B is mounted on the end cap and drives the double-headed auger to rotate.

[0011] And a rotary feeding mechanism, which is located between the cone and the hollow tube. When in operation, the rotary feeding mechanism will push the raw material at the bottom of the inner cavity of the cylindrical tube A upward and introduce it into the feed port.

[0012] Preferably, a cylindrical tube B, which rotates coaxially with the cylindrical tube A, is sleeved outside the cylindrical tube A. The cylindrical tube B is connected to the frame. A feed hopper and a discharge pipe are symmetrically arranged on the cylindrical tube B about its axis. When the cylindrical tube A is rotating, the feed port is alternately connected to the feed hopper and the discharge pipe.

[0013] Preferably, two crushing rollers are rotatably connected to the feed hopper, the two crushing rollers are fitted with a clearance, gears B are coaxially mounted on the roller shafts of the crushing rollers, the two gears B mesh, and a motor B is mounted on the feed hopper to drive one of the crushing rollers to rotate.

[0014] Preferably, the drive assembly A includes a gear ring A, a gear A, and a motor A. The gear ring A is coaxially mounted on the outer wall of the cylindrical tube A. A spline shaft is mounted on the frame. The gear A is coaxially connected to the spline shaft and meshes with the gear ring A. The motor A body is mounted on the frame, and the output end of the motor A is connected to the spline shaft.

[0015] Preferably, the double-headed auger includes a central shaft and two spiral plates. The two ends of the central shaft are rotatably connected to the end caps on the corresponding sides. The two spiral plates are sleeved on the central shaft and coaxially connected to it. The ends of the two spiral plates that are close to each other are joined together, and the spiral plates are fitted with the inner wall of the hollow tube with a clearance fit.

[0016] Preferably, the rotating feeding mechanism includes a ring, a bucket, and a transmission assembly. The ring is coaxially rotatably mounted on the end cover. A connecting rod is provided at one end of the two rings that are close to each other. The bucket is located between the two connecting rods and is connected to the connecting rods on both sides. The bucket is in sliding contact with the inner wall of the cylindrical tube A and the outer wall of the hollow tube. The transmission assembly is located inside the end cover and is connected to the double-headed auger and the ring.

[0017] Preferably, the transmission assembly includes a gear ring B, a gear C, and a gear D. The gear ring B is coaxially connected to the ring, the gear C is located inside the gear ring B and coaxially connected to the central shaft of the double-headed auger, and the gear D is located in the annular channel between the gear ring B and the gear C and is rotatably connected to the end cover. The gear D meshes with both the gear ring B and the gear C.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] A cylindrical tube A is rotatably connected to a conical cylinder. A feed inlet is located on cylindrical tube A, and a drive assembly A drives the rotation of cylindrical tube A. The rotation of cylindrical tube A changes the orientation of the feed inlet, thus achieving both feeding and discharging through a single inlet. A cylindrical tube B is also provided, equipped with a feed hopper and a discharge pipe. Feeding and discharging are completed separately as cylindrical tube A rotates. A crushing assembly is installed inside the feed hopper to break down and loosen lumpy raw materials, preventing them from entering the mixing process. This improves the efficiency of raw material mixing. By setting up a hollow tube with a double-headed auger inside, and a rotating feeding mechanism linked to the double-headed auger, the raw material at the bottom of the inner cavity of the cylindrical tube A is scraped up by the bucket in the rotating feeding mechanism and enters the hollow tube through the inlet. Then, the double-headed auger pushes the raw material to both ends of the cone, and then the raw material moves from both ends of the cone into the cylindrical tube A, thereby realizing rapid distribution and circulation mixing of the raw material and improving the efficiency of raw material mixing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the conical cylinder and the cylindrical tube A;

[0022] Figure 3 This is a schematic diagram of the structure of cylindrical tube A;

[0023] Figure 4 This is a schematic diagram of the connection structure of the various components on cylindrical tube B;

[0024] Figure 5 This is a schematic diagram of the connection structure between the hollow tube and the end cap.

[0025] Figure 6 This is a schematic diagram of the connection structure between the double-headed auger, scraper, and motor C.

[0026] Reference numerals: 1. Frame; 2. Cone; 3. End cap; 4. Cylindrical tube A; 401. Feed inlet; 5. Gear ring A; 6. Cylindrical tube B; 7. Feed hopper; 8. Discharge pipe; 9. Splined shaft; 10. Gear A; 11. Motor A; 12. Crushing roller; 13. Gear B; 14. Motor B; 15. Hollow tube; 151. Feed inlet; 16. Discharge pipe; 17. Double-headed auger; 18. Motor C; 19. Ring; 20. Connecting rod; 21. Bucket; 22. Gear ring B; 23. Gear C; 24. Gear D. Detailed Implementation

[0027] Example 1

[0028] like Figures 1-6As shown, this utility model proposes a multi-stage mixing device, including a frame 1, a cylindrical tube A4, a drive assembly A, a hollow tube 15, a drive assembly B, and a rotary feeding mechanism. Two conical tubes 2 are symmetrically arranged on the frame 1, with end caps 3 connected to the ends of the two conical tubes 2 that are far apart from each other, and the ends with the larger inner diameter of the two conical tubes 2 are close to each other. Both ends of the cylindrical tube A4 are rotatably connected to the corresponding conical tubes 2, and the cylindrical tube A4 communicates with the interior of the conical tubes 2. A feed inlet 401 is provided on the cylindrical tube A4. The drive assembly A includes a gear ring A5, a gear A10, and a motor A11. The gear ring A5 is coaxially mounted on the outer wall of the cylindrical tube A4. A splined shaft 9 is provided on the frame 1, and the gear A10 is coaxially connected to the splined shaft 9, meshing with the gear ring A5. The motor A11 is mounted on the frame 1, and its output end is connected to the splined shaft 9. A cylindrical tube A4 is fitted with a coaxially rotating cylindrical tube B6. The cylindrical tube B6 is connected to the frame 1. A feed hopper 7 and a discharge pipe 8 are symmetrically arranged on the cylindrical tube B6 about its axis. When the cylindrical tube A4 is rotating, the feed inlet 401 alternately connects to the feed hopper 7 and the discharge pipe 8. A hollow tube 15 is located inside the cone 2 and the cylindrical tube A4. Both ends of the hollow tube 15 are coaxially connected to the corresponding end caps 3. A discharge pipe 16 is provided at each end of the hollow tube 15, and a feed inlet 151 is centrally located on the hollow tube 15. A double-headed auger 17, rotatably connected to the end caps 3, is coaxially arranged inside the hollow tube 15. The double-headed auger 17 includes a central shaft and two spiral plates. Both ends of the central shaft are rotatably connected to the corresponding end caps 3. Both spiral plates are fitted onto the central shaft and coaxially connected to it. The ends of the two spiral plates that are close together are joined, and the spiral plates are clearance-fitted with the inner wall of the hollow tube 15. Drive component B includes, but is not limited to, motor C18, which is mounted on end cover 3 and drives the double-headed auger 17 to rotate. A rotating material-feeding mechanism is located between the cone 2 and the hollow tube 15. This mechanism includes a ring 19, a bucket 21, and a transmission assembly. The ring 19 is coaxially rotatably mounted on end cover 3. A connecting rod 20 is located at the adjacent ends of the two rings 19. The bucket 21 is located between the two connecting rods 20 and connected to both sides of the connecting rods 20. The bucket 21 slides in contact with the inner wall of the cylindrical tube A4 and the outer wall of the hollow tube 15. The transmission assembly is located inside end cover 3 and drives the double-headed auger 17 and the ring 19. The assembly includes a gear ring B22, a gear C23, and a gear D24. The gear ring B22 is coaxially connected to the ring 19. The gear C23 is located inside the gear ring B22 and is coaxially connected to the central axis of the double-headed auger 17. The gear D24 is located in the annular channel between the gear ring B22 and the gear C23 and is rotatably connected to the end cover 3. The gear D24 meshes with both the gear ring B22 and the gear C23. In operation, the rotary feeding mechanism pushes the raw material at the bottom of the inner cavity of the cylindrical tube A4 upward and introduces it into the feed port 151.

[0029] It should be noted that in this embodiment, all motors are servo motors.

[0030] In this embodiment, when the equipment is powered on, motor A11 drives the splined shaft 9 to rotate, which in turn drives the gear ring A5 and cylindrical tube A4 to rotate via the rotating gear A10, aligning the feed inlet 401 with the feed hopper 7. Raw materials are then added to the feed hopper 7 and descend into the cylindrical tube A4 and cone 2. Motor C18 is then started, driving the double-headed auger 17 to rotate, which in turn drives gear C23 to rotate. Gear C23 drives gear D24 to rotate, which in turn drives the gear ring B22 to rotate. Gear ring B22 then drives the bucket 21 to rotate. The bucket 21 rotates while in this state. The raw material at the bottom of the inner cavity of the cylindrical tube A4 is scraped upward and introduced into the feed port 151. At this time, the double-headed auger 17 is rotating in both directions, using the double-headed auger 17 to push the raw material in the hollow tube 15 to both directions. The raw material is discharged along the feed pipe 16, and then the raw material slides down the slope of the cone 2 and flows back into the cylindrical tube A4. This cycle is repeated, so that the raw material is fully and quickly intermingled and mixed. After the raw material is mixed, the motor A11 drives the cylindrical tube A4 to rotate until the feed port 401 is aligned with the discharge pipe 8, keeping the double-headed auger 17 rotating, and using the rotating scraper 21 to assist in the discharge.

[0031] Example 2

[0032] like Figure 1 and Figure 4 As shown, the multi-stage mixing device proposed in this utility model, compared with the first embodiment, has two crushing rollers 12 rotatably connected to the feed hopper 7. The two crushing rollers 12 are fitted with a clearance, and gears B13 are coaxially arranged on the roller shaft of the crushing rollers 12. The two gears B13 mesh, and a motor B14 is provided on the feed hopper 7 to drive one of the crushing rollers 12 to rotate.

[0033] In this embodiment, before the raw material enters the cone 2 and the cylindrical tube A4, the two crushing rollers 12 are driven to rotate relative to each other by the motor B14, thereby loosening and breaking up the raw material, thus improving the mixing efficiency of the raw material.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A multi-stage agitated mixing device, characterized by, include: A frame (1) is provided, and two cones (2) are symmetrically arranged on the frame (1). The ends of the two cones (2) that are far apart from each other are respectively connected to an end cap (3). Cylindrical tube A (4), both ends of cylindrical tube A (4) are rotatably connected to the corresponding cone (2), cylindrical tube A (4) is connected to the inside of cone (2), and feed inlet (401) is provided on cylindrical tube A (4); Drive component A is mounted on the frame (1) and drives the cylindrical tube A (4) to rotate; Hollow tube (15) is located inside the cone (2) and cylindrical tube A (4). The two ends of the hollow tube (15) are coaxially connected to the end caps (3) on the corresponding sides. A feed pipe (16) is set at each end of the hollow tube (15), and a feed inlet (151) is set in the center of the hollow tube (15). A double-headed auger (17) is coaxially set inside the hollow tube (15) and rotatably connected to the end caps (3). Drive component B is set on end cap (3) and drives the double-headed auger (17) to rotate; And a rotating feeding mechanism, which is set between the cone (2) and the hollow tube (15). In the working state, the rotating feeding mechanism will push the raw material at the bottom of the inner cavity of the cylindrical tube A (4) upward and introduce it into the feed port (151).

2. A multi-stage mixing device according to claim 1, wherein A cylindrical tube A (4) is fitted with a cylindrical tube B (6) that rotates coaxially with it. The cylindrical tube B (6) is connected to the frame (1). The cylindrical tube B (6) is symmetrically equipped with a feed hopper (7) and a discharge pipe (8) about its axis. When the cylindrical tube A (4) is rotating, the feed port (401) is alternately connected to the feed hopper (7) and the discharge pipe (8).

3. A multi-stage mixing device according to claim 2, wherein Two crushing rollers (12) are rotatably connected to the feed hopper (7). The two crushing rollers (12) are fitted with a gap. Gears B (13) are coaxially arranged on the roller shaft of the crushing rollers (12). The two gears B (13) mesh. A motor B (14) is provided on the feed hopper (7) to drive one of the crushing rollers (12) to rotate.

4. A multi-stage mixing device as claimed in claim 1, wherein, The drive assembly A includes a gear ring A (5), a gear A (10), and a motor A (11). The gear ring A (5) is coaxially mounted on the outer wall of the cylindrical tube A (4). A spline shaft (9) is mounted on the frame (1). The gear A (10) is coaxially connected to the spline shaft (9) and meshes with the gear ring A (5). The motor A (11) is mounted on the frame (1) and its output end is connected to the spline shaft (9).

5. A multi-stage mixing device as claimed in claim 1, wherein, The double-headed auger (17) includes a central shaft and two spiral plates. The two ends of the central shaft are rotatably connected to the end caps (3) on the corresponding sides. The two spiral plates are both sleeved on the central shaft and coaxially connected to it. The two spiral plates are joined at the close ends, and the spiral plates are fitted with the inner wall of the hollow tube (15) with a clearance.

6. A multi-stage mixing device as claimed in claim 1, wherein, The rotating material feeding mechanism includes a ring (19), a bucket (21), and a transmission assembly. The ring (19) is coaxially rotatably mounted on the end cover (3). A connecting rod (20) is provided at one end of the two rings (19) that are close to each other. The bucket (21) is located between the two connecting rods (20) and is connected to the connecting rods (20) on both sides. The bucket (21) is in sliding contact with the inner wall of the cylindrical tube A (4) and the outer wall of the hollow tube (15). The transmission assembly is located inside the end cover (3) and is connected to the double-headed auger (17) and the ring (19).

7. A multi-stage mixing device according to claim 6, wherein The transmission assembly includes a gear ring B (22), a gear C (23) and a gear D (24). The gear ring B (22) is coaxially connected to the ring (19). The gear C (23) is located inside the gear ring B (22) and is coaxially connected to the central axis of the double-headed auger (17). The gear D (24) is located in the annular channel between the gear ring B (22) and the gear C (23) and is rotatably connected to the end cover (3). The gear D (24) meshes with both the gear ring B (22) and the gear C (23).

Images