Three-dimensional mixing device

Abstract

The application discloses a three-dimensional mixing device, which comprises a support supported on a plane, a main shaft rotatably arranged on the support, one end of the main shaft driven by a servo motor, and a rotating arm arranged at the other end of the main shaft, one end of the rotating arm rotatably arranged with a base, and the other end oppositely arranged with a cover, further comprising: a fixed disc coaxially sleeved outside the main shaft and fixed relative to the support; a driving disc coaxially fixedly connected with the base; and a round belt connected on the fixed disc and the driving disc and tensioned by a tensioning wheel rotatably arranged on the rotating arm. The fixed disc and the driving disc are connected by the round belt, so that the base and the driving disc rotate around the main shaft during the rotation of the main shaft driving the rotating arm, the round belt drives the driving disc to rotate, namely the base rotates, and thus when the material cylinder is clamped between the cover and the base, the rotation of the main shaft and the rotation of the base constitute the revolution and rotation of the material cylinder, so that the mixing is realized, and the power source is saved.

Description

Technical Field

[0001] This invention relates to the field of mixing device technology, and more specifically to a three-dimensional mixing device. Background Technology

[0002] Mixing devices are essential productivity equipment in the fields of materials or chemistry. They replace manual labor by using standardized mechanical rotation or shaking to produce uniformly sized mixtures, which not only improves efficiency but also meets most of the experimental or production needs. Existing mixing devices can basically meet daily use needs, but there are still some shortcomings that need to be improved.

[0003] Patent document CN115069124A, published on September 20, 2022, discloses a mixing device, which includes: a horizontally arranged main shaft, a rotating frame component disposed at the front end of the main shaft for driving a sample barrel to rotate around the center of the main shaft; an upper screw cap and a base plate for clamping the sample barrel are provided at the upper and lower ends of the rotating frame component; it further includes a rotation mechanism, so that the sample barrel can rotate on its own axis while revolving around the main shaft; therefore, the mixing device of the present invention overcomes the problems of high labor intensity of manual mixing operation and poor mixing effect of agitator, and it can rotate in multiple dimensions, with the advantages of compact structure and high reliability.

[0004] As in the prior art of the aforementioned patent, the mixing effect can be improved by combining the revolution and rotation of the material cylinder. However, in order to achieve revolution and rotation, a separate power source is usually required. For example, the aforementioned patent uses a gear linkage method, which can save power source, but it results in a bulky structure and poor dynamic balance. Therefore, a three-dimensional mixing device is urgently needed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a three-dimensional mixing apparatus to overcome the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A three-dimensional mixing device includes a support on a plane, a main shaft rotatably mounted on the support, one end of the main shaft being driven by a servo motor, and the other end being provided with a rotating arm, one end of the rotating arm being rotatably mounted with a base, and the other end being provided with a cover opposite to it, and further includes: a fixed disk fixed relative to the support and coaxially sleeved on the outside of the main shaft; a drive disk coaxially fixedly connected to the base; and a round belt connected to the fixed disk and the drive disk, and tensioned by a tensioning wheel rotatably mounted on the rotating arm.

[0008] Preferably, the rotating arm is provided with a rotating seat, the rotating seat is provided with a base, and the cover is movably connected to the base.

[0009] Preferably, it also includes a negative pressure dust removal component disposed below the rotating arm. The base is rotatably connected to the rotating seat. The rotating arm has a clamping position at the highest point and a dust removal position at the lowest point within its rotation range. The cover faces downward under the rotation of the base to correspond to the base or the negative pressure dust removal component respectively.

[0010] Preferably, the negative pressure dust removal assembly includes a collection hopper, a negative pressure pipe, and a nozzle. The collection hopper is fixed relative to the support, the negative pressure pipe is connected to the lower end of the collection hopper, and the nozzle is fixed to the inner wall of the collection hopper with the nozzle pointing towards the upper opening of the collection hopper.

[0011] Preferably, the rotating seat is a rotary cylinder, and the base is a telescopic cylinder.

[0012] Preferably, a groove is provided at one end of the base near the cover, and a top plate is movably disposed in the groove. The movement of the top plate is linked with the rolling of the circular belt on the drive plate and performs periodic movements. A cover plate is elastically disposed on the cover.

[0013] Preferably, a guide post is provided on the side of the top plate away from the cover body, and an inclined sliding groove is provided on the guide post. A sliding pin is movably connected in the inclined sliding groove, and a linkage rod is fixedly provided on the sliding pin. One end of the linkage rod moves radially along the drive disc and passes through an annular recessed groove on the side wall of the drive disc for embedding a round belt.

[0014] Preferably, the rotating base is provided with a switching shaft that rotates synchronously with the base and a power ring that drives the switching shaft to move axially. The fixed plate is connected to a docking shaft that is coaxial with the switching shaft and rotatably connected to the rotating arm through a pulley assembly. One end of the switching shaft is provided with a clutch assembly for docking with the docking shaft, and the other end is provided with a linkage assembly that is linked with the cover.

[0015] Preferably, the clutch assembly includes a docking block coaxially disposed at the near ends of the switching shaft and the docking shaft, with the two docking blocks tightly fitted together to rotate synchronously.

[0016] Preferably, the linkage component includes a telescopic rod movably mounted on the base and a connecting rod hinged to one end of the switching shaft. One end of the telescopic rod movably passes through the base and is fixedly connected to the cover, and the other end of the connecting rod is hinged to the telescopic rod.

[0017] In the above technical solution, the beneficial effects of the present invention are:

[0018] This three-dimensional mixing device connects the fixed disc and the drive disc with a circular belt, and then tensions the circular belt with a tensioning wheel. As the main shaft drives the rotating arm to rotate, the base and the drive disc rotate together around the main shaft, causing the circular belt to drive the drive disc to rotate, i.e., the base to rotate. Thus, when the material cylinder is clamped between the cover and the base, the rotation of the main shaft and the rotation of the base cause the material cylinder to revolve and rotate, thereby achieving mixing, saving power, making the structure simple and efficient, and improving the practicality of the device.

[0019] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0020] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for the first embodiment of the present invention;

[0023] Figure 2 This is a side cross-sectional view of the cover in the clamping position according to the first embodiment of the present invention;

[0024] Figure 3 This is a side cross-sectional view of the cover in the dust removal position according to the first embodiment of the present invention.

[0025] Figure 4 This is a side cross-sectional structural schematic diagram provided in the second embodiment of the present invention;

[0026] Figure 5 Provided by the present invention Figure 4 Enlarged structural diagram at point A;

[0027] Figure 6 Provided by the present invention Figure 4 Enlarged structural diagram at point B;

[0028] Figure 7 This is a side cross-sectional structural schematic diagram provided in the third embodiment of the present invention;

[0029] Figure 8 Provided by the present invention Figure 7 Enlarged structural diagram at point C;

[0030] Figure 9 This is a partial cross-sectional view of the drive disk provided in the third embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Support; 2. Main shaft; 3. Servo motor; 4. Rotating arm; 5. Base; 6. Cover; 7. Fixed plate; 8. Drive plate; 9. Round belt; 10. Tensioner; 11. Rotating seat; 12. Base; 13. Collection hopper; 14. Negative pressure pipe; 15. Nozzle; 16. Rotary cylinder; 17. Telescopic cylinder; 18. Groove; 19. Top plate; 20. Cover plate; 21. Guide post; 22. Inclined slide groove; 23. Sliding pin; 24. Linkage rod; 25. Switching shaft; 26. Power ring; 27. Connecting shaft; 28. Connecting block; 29. ​​Telescopic rod; 30. Connecting rod; 31. Slip ring; 32. Fixed wheel; 33. Linkage wheel; 34. Synchronous belt. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0034] Please see Figure 1-9 The first embodiment of the present invention provides a three-dimensional mixing device, including a support 1 supported on a plane, a main shaft 2 rotatably mounted on the support 1, one end of the main shaft 2 being driven by a servo motor 3, and the other end being provided with a rotating arm 4, one end of the rotating arm 4 being rotatably mounted with a base 5, and the other end being provided with a cover 6 opposite to it, and further including: a fixed disk 7, which is fixed relative to the support 1 and coaxially sleeved on the outside of the main shaft 2; a driving disk 8, which is coaxially fixedly connected to the base 5; and a round belt 9, which is connected to the fixed disk 7 and the driving disk 8, and is tensioned by a tensioning wheel 10 rotatably mounted on the rotating arm 4.

[0035] Specifically, the support 1 is used to fix it on a horizontal workbench or experimental cabinet partition, etc.; the spindle 2 is axially horizontal; the servo motor 3 drives the spindle 2 to rotate through a pulley transmission structure, and, in conjunction with a sensor, accurately controls the rotation angle of the spindle 2; the rotating arm 4 rotates in a vertical plane, and the rotating arm 4 is connected to the spindle 2 at its middle part; the base 5 and the cover 6 are both set on the surface of the rotating arm 4 away from the spindle 2; the rotation axis of the base 5 is perpendicular to the axis of the spindle 2; the cover 6 and the base 5 are used to clamp the material cylinder; the surface of the cover 6 used to clamp the material cylinder is provided with... A polyurethane pad; a fixed plate 7 is fixedly connected to a support 1 via two symmetrically arranged support plates, thereby fixing it relative to the support 1; a drive plate 8 is connected to the end of the base 5 away from the cover 6; the fixed plate 7 and the drive plate 8 are perpendicularly intersecting each other axially; there are preferably two tension wheels 10, and their axial directions are perpendicular to the axial directions of both the fixed plate 7 and the drive plate 8; the portion of the round belt 9 that passes over the tension wheel 10 is L-shaped; a suspension plate is provided on the side of the rotating arm 4 away from the base 5 to support the shaft of the tension wheel 10; the outer circular sidewalls of the fixed plate 7, the drive plate 8, and the tension wheel 10 are all provided with annular recessed grooves for the round belt 9 to be embedded. In practical use, after the material to be mixed is loaded into the material cylinder, it is clamped between the base 5 and the cover 6, with the axis of the material cylinder coinciding with the axis of the base 5. Then, the servo motor 3 drives the main shaft 2 to rotate, and the main shaft 2 drives the rotating arm 4 to rotate. The rotating arm 4 drives the material cylinder to rotate, which is the revolution of the material cylinder. This allows the material cylinder to be repeatedly turned upside down to mix the material. At the same time, the drive disk 8 rotates around the fixed disk 7 under the drive of the rotating arm 4, causing the circular belt 9 to roll, which drives the drive disk 8 to rotate, that is, the base 5 to rotate. This allows the material cylinder to rotate around its own axis to mix the material. Thus, the rotation of the main shaft 2 and the rotation of the base 5 constitute the revolution and rotation of the material cylinder, improving the mixing effect and saving power. The structure is simple and efficient.

[0036] Compared with the prior art, the three-dimensional mixing device proposed in this embodiment of the invention connects the fixed disk 7 and the driving disk 8 with a circular belt 9, and then tensions the circular belt 9 with a tensioning wheel 10. As the main shaft 2 drives the rotating arm 4 to rotate, the base 5 and the driving disk 8 rotate together around the main shaft 2, which causes the circular belt 9 to drive the driving disk 8 to rotate, that is, the base 5 to rotate. Thus, when the material cylinder is clamped between the cover 6 and the base 5, the rotation of the main shaft 2 and the rotation of the base 5 cause the material cylinder to revolve and rotate, thereby achieving mixing, saving power source, making the structure simple and efficient, and improving the practicality of the device.

[0037] As a preferred technical solution of this embodiment, a rotating arm 4 is provided with a rotating seat 11, and a base 12 is provided on the rotating seat 11. The cover 6 is movably connected to the base 12. Specifically, the movement direction of the cover 6 relative to the base 12 is along the axial direction of the base 5. The cover 6 clamps or releases the material cylinder between itself and the base 5 through movement control. Under the support of the rotating seat 11 and the base 12, the axial direction of the cover 6 coincides with the axial direction of the base 5.

[0038] As a preferred technical solution of this embodiment, it also includes a negative pressure dust removal component disposed below the rotating arm 4. The base 12 is rotatably connected to the rotating seat 11. The rotating arm 4 has a clamping position at the highest point and a dust removal position at the lowest point within the rotation range. The cover 6 is facing downward under the rotation of the base 12 to correspond to the base 5 or the negative pressure dust removal component respectively. Specifically, after the cover 6 clamps the material cylinder and performs a mixing motion, some material will adhere to the surface of the cover 6 covering the opening of the material cylinder, which needs to be cleaned to avoid cross-contamination during subsequent use. The negative pressure dust removal component is used to clean the surface of the cover 6 after docking with it. The axis of rotation of the base 12 relative to the rotating seat 11 is parallel to the axis of the main shaft 2. During the rotation of the rotating arm 4, the upper and lower positions of both ends are repeatedly reversed. When the end of the rotating arm 4 carrying the cover 6 rotates to the highest position, the base 12 rotates on the rotating seat 11 to make the cover 6 face downwards, and the cover 6 is in the clamping position. When the end of the rotating arm 4 carrying the cover 6 rotates to the lowest height, the base 12 rotates on the rotating seat 11 to make the cover 6 face downwards, and the cover 6 is in the dust removal position. When the cover 6 is in the clamping position, it is in contact with the base 5. When the cover 6 is vertically aligned and above the base 5, the material cylinder in an upright position can be placed between the cover 6 and the base 5. The cover 6 then moves downward to clamp the material cylinder near the base 5, and vice versa. When the cover 6 is in the dust removal position, it is vertically aligned with the negative pressure dust removal component and above it. The cover 6 moves downward to close to the negative pressure dust removal component to form a sealed connection. The negative pressure dust removal component then cleans the surface of the cover 6. After cleaning, the cover 6 moves upward to move away from the negative pressure dust removal component, making it easy to switch positions with the rotating arm 4.

[0039] As a preferred technical solution in this embodiment, the negative pressure dust removal assembly includes a collection hopper 13, a negative pressure pipe 14, and a nozzle 15. The collection hopper 13 is fixed relative to the support 1. The negative pressure pipe 14 is connected to the lower end of the collection hopper 13. The nozzle 15 is fixed to the inner wall of the collection hopper 13, and the nozzle points to the upper opening of the collection hopper 13. Specifically, the axial direction of the collection hopper 13 coincides with the axial direction of the cover 6 in the dust removal position. The negative pressure pipe 14 generates a negative pressure suction effect under the control of the servo system. The nozzle 15 is used to blow high-speed gas onto the surface of the cover 6 so that the material adhering to the surface of the cover 6 is removed and then sucked away by the negative pressure pipe 14, thereby completing the cleaning of the surface of the cover 6.

[0040] As a preferred technical solution in this embodiment, the rotating base 11 is a rotary cylinder 16, and the base 12 is a telescopic cylinder 17. Specifically, both the rotary cylinder 16 and the telescopic cylinder 17 are controlled by a pneumatic system. A slip ring 31 is sleeved on the outer side of the main shaft 2. The slip ring 31 is fixedly connected to the fixed plate 7. Two sets of input valves are provided on the slip ring 31, and two sets of relay valves are provided on the rotating arm 4. A set of receiving valves is provided on the rotary cylinder 16 and the telescopic cylinder 17 respectively. The input valves and the relay valves are connected through multiple channels provided in the slip ring 31 and are connected when the rotating arm 4 is stationary in the vertical position. The relay valves are connected to the receiving valves through external pipelines. Thus, when the rotating arm 4 rotates, the pneumatic system does not work, and the pipeline between the relay valves and the receiving valves rotates with the rotating arm 4, thereby avoiding the problem of pipeline entanglement.

[0041] In the second embodiment of the present invention, a groove 18 is provided at one end of the base 5 near the cover 6, and a top plate 19 is movably disposed within the groove 18. The movement of the top plate 19 is linked to the rolling motion of the circular belt 9 on the drive disc 8 and performs periodic movements. A cover plate 20 is elastically movably disposed on the cover 6. Specifically, the size of the groove 18 matches the size of the bottom of the material cylinder. The top plate 19 moves axially within the groove 18. The movement of the top plate 19 is linked to the rolling motion of the circular belt 9, so that the movement of the top plate 19 occurs during the rotation of the rotating arm 4, that is, during the mixing process combining revolution and rotation. Thus, the movement of the top plate 19 increases the axial movement of the material cylinder. The intermittent reciprocating motion adds a mixing action in another direction, thereby further improving the mixing effect and efficiency. The cover 6 is preferably circular, with the cover plate 20 embedded in it and coaxially arranged. The side of the cover plate 20 inside the cover 6 is connected to the inside of the cover 6 by a spring, which keeps pushing the cover plate 20 outward. The cover plate 20 is used to abut against the opening end of the material cylinder in actual use. The base 5 and the cover 6 cooperate to clamp the material cylinder. In fact, the top plate 19 and the cover plate 20 cooperate to clamp the material cylinder, and the groove 18 limits the material cylinder. At this time, the intermittent movement of the top plate 19 cooperates with the elastically moving cover plate 20 to maintain the clamping and control of the material cylinder.

[0042] As a preferred embodiment, a guide post 21 is provided on the side of the top plate 19 away from the cover 6. An inclined sliding groove 22 is provided on the guide post 21, and a sliding pin 23 is movably connected within the inclined sliding groove 22. A linkage rod 24 is fixedly provided on the sliding pin 23. One end of the linkage rod 24 moves radially along the drive disc 8 and penetrates into an annular recessed groove on the side wall of the drive disc 8 for embedding the round belt 9. Specifically, the axial direction of the guide post 21 is parallel to the axial direction of the base 5. The upper end of the inclined sliding groove 22 is positioned closer to the point where the linkage rod 24 penetrates the drive disc 8. When the sliding pin 23 is at the upper end of the inclined sliding groove 22, the linkage rod 24 extends the longest beyond the side wall of the drive disc 8, preferably by 10-20 mm. When the sliding pin 23 is at the lower end of the inclined sliding groove 22, the linkage rod 24 is completely retracted into the side wall of the drive disc 8. When the cover 6 is in the clamping position, i.e., the base 5 is directly below the cover 6, the linkage rod 24 moves radially along the drive disc 8. The direction is parallel to the driven end of the main shaft 2. Thus, when the rotating arm 4 rotates to the first near-horizontal position, the extended end of the linkage rod 24 is squeezed by the round belt 9 and retracts, which drives the top plate 19 to move out of the groove 18. The top plate 19, together with the cover plate 20, controls the material cylinder to move laterally and sway when it is near horizontal. Subsequently, the linkage rod 24 continues to be squeezed by the round belt 9. When the rotating arm 4 rotates to the second near-horizontal position, the end of the linkage rod 24 that is blocked by the round belt 9 gradually leaves the round belt 9. Under the elastic force of the cover plate 20, the cover plate 20, together with the top plate 19, controls the material cylinder to move laterally and sway again when it is near horizontal. This causes the top plate 19 to retract in the groove 18, and then the linkage rod 24 extends out of the side wall of the drive disc 8 again. This cycle is repeated, which realizes the axial reciprocating movement of the material cylinder driven by the rotating arm 4 when it is near horizontal.

[0043] In the third embodiment of the present invention, a switching shaft 25 that rotates synchronously with the base 12 is rotatably provided inside the rotating seat 11, and a power ring 26 that drives the switching shaft 25 to move axially is provided. The fixed disk 7 is connected to a docking shaft 27 that is coaxial with the switching shaft 25 and rotatably connected to the rotating arm 4 through a pulley assembly. One end of the switching shaft 25 is provided with a clutch assembly for docking with the docking shaft 27, and the other end is provided with a linkage assembly that is linked with the cover 6. Specifically, in the first embodiment, the rotating cylinder 16 drives the telescopic cylinder 17 to rotate, which causes the pneumatic pipeline on the telescopic cylinder 17 to be repeatedly twisted and pulled in actual use, which is easy to be damaged. Therefore, this embodiment is proposed to solve the problem.The switching shaft 25 is axially rotatable and axially movable; the power ring 26 is preferably pneumatically controlled, and the rotating seat 11 is provided with a cavity matching the power ring 26. Receiving valves are provided at both ends of the cavity. The movement of the power ring 26 is controlled by switching the intake and release of air through the two receiving valves, thereby controlling the axial movement of the switching shaft 25 without affecting the rotation of the switching shaft 25; the power ring 26 can also be magnetically controlled, which will not be elaborated further; the pulley assembly includes a fixed wheel 32 coaxially fixed to the fixed disk 7, a linkage wheel 33 coaxially fixed to the docking shaft 27, and a synchronous belt 34 connecting the fixed wheel 32 and the linkage wheel 33. The fixed wheel 32 is... The fixed sleeve is attached to the outside of the slip ring 31, so that when the rotating arm 4 rotates, the linkage wheel 33 rotates around the fixed wheel 32, causing the linkage wheel 33 to rotate on the rotating arm 4. The transmission ratio between the fixed wheel 32 and the linkage wheel 33 is one to one. In this way, under the linkage of the pulley assembly, the rotation angle of the rotating arm 4 is consistent with the rotation angle of the docking shaft 27 on the rotating arm 4. This allows the switching shaft 25 to be docked with the docking shaft 27 through the clutch assembly. When the rotating arm 4 rotates so that one end of the cover 6 is facing upward, the base 12 rotates in conjunction to make the cover 6 rotate towards the center of the rotating arm 4, that is, the cover 6 rotates downward. The rotation of the rotating arm 4 makes the cover 6 rotate downward. When one end of the cover 6 is facing downwards, the base 12 rotates in conjunction to make the cover 6 rotate away from the center of the rotating arm 4, that is, the cover 6 also rotates downwards. When the switching shaft 25 moves axially closer to the docking shaft 27, it can engage with the docking shaft 27 through the clutch assembly to rotate synchronously. At this time, the switching shaft 25 also retracts the cover 6 through the linkage assembly. When the switching shaft 25 moves axially away from the docking shaft 27, the clutch assembly disengages. At this time, the switching shaft 25 extends the cover 6 through the linkage assembly. The cover 6 moves with the switching shaft 25 through the linkage assembly, and just when the cover 6 approaches the base 5 to clamp the material cylinder, the clutch assembly disengages. When the rotating arm 4 rotates, the base 12 will not rotate in conjunction with it. Instead, the cover 6 moves away from the base 5 to release the material cylinder. When cleaning is required, the clutch assembly is engaged, and when the rotating arm 4 rotates, the base 12 rotates in conjunction with it, so that the cover 6 automatically flips relative to the rotating arm 4 to switch to the dust removal position. It can be seen that the above linkage structure not only saves the power source for driving the rotation of the base 12, but also only requires a receiving valve on the rotating seat 11 to control the movement of the power ring 26. The rotating seat 11 is fixed relative to the rotating arm 4, so that the pipeline between this set of relay valves and receiving valves is fixed relative to the rotating arm 4 and will not be twisted or pulled.

[0044] As a preferred technical solution in this embodiment, the clutch assembly includes a docking block 28 coaxially arranged at the near ends of the switching shaft 25 and the docking shaft 27. The two docking blocks 28 are tightly fitted together to rotate synchronously. Specifically, the adjacent surfaces of the two docking blocks 28 are provided with matching star patterns or friction layers, which can transmit torque to rotate synchronously when they are tightly fitted, and do not affect each other when they are separated.

[0045] As a preferred technical solution in this embodiment, the linkage component includes a telescopic rod 29 movably disposed on the base 12 and a connecting rod 30 hinged to one end of the switching shaft 25. One end of the telescopic rod 29 movably passes through the base 12 and is fixedly connected to the cover 6. The other end of the connecting rod 30 is hinged to the telescopic rod 29. Specifically, the telescopic rod 29 controls the movement of the cover 6 relative to the base 12. The connecting rod 30 is arranged at an angle, and the connecting rod 30 causes the base 12 and the switching shaft 25 to rotate synchronously. In actual use, when the switching shaft 25 moves closer to the base 12, it pushes the connecting rod 30, which in turn pushes the telescopic rod 29. The telescopic rod 29 then causes the cover 6 to extend away from the base 12. Conversely, when the switching shaft 25 moves away from the base 12, the cover 6 retracts towards the base 12.

[0046] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A three-dimensional mixing device, comprising a support (1) supported on a plane, a main shaft (2) rotatably mounted on the support (1), one end of the main shaft (2) being driven by a servo motor (3), and a rotating arm (4) being mounted on the other end, a base (5) rotatably mounted on one end of the rotating arm (4), and a cover (6) being mounted opposite to the other end, characterized in that, Also includes: The fixed plate (7) is fixed relative to the support (1) and is coaxially sleeved on the outside of the main shaft (2); The drive disk (8) is coaxially and fixedly connected to the base (5); A round belt (9) is connected to a fixed disc (7) and a drive disc (8), and is tensioned by rotating a tensioning wheel (10) mounted on a rotating arm (4); The base (5) has a groove (18) near the end of the cover (6). A top plate (19) is movably disposed in the groove (18). The movement of the top plate (19) is linked with the rolling of the round belt (9) on the drive disk (8) and performs periodic movements. A cover plate (20) is elastically disposed on the cover (6). A guide post (21) is provided on the side of the top plate (19) away from the cover (6). An inclined slide groove (22) is provided on the guide post (21). A sliding pin (23) is movably connected in the inclined slide groove (22). A linkage rod (24) is fixedly provided on the sliding pin (23). One end of the linkage rod (24) moves radially along the drive disc (8) and passes through an annular recessed groove on the side wall of the drive disc (8) for embedding a round belt (9).

2. The three-dimensional mixing device according to claim 1, characterized in that, The rotating arm (4) is provided with a rotating seat (11), and the rotating seat (11) is provided with a base (12). The cover (6) is movably connected to the base (12).

3. The three-dimensional mixing device according to claim 2, characterized in that, It also includes a negative pressure dust removal assembly located below the rotating arm (4). The base (12) is rotatably connected to the rotating seat (11). The rotating arm (4) has a clamping position at the highest point and a dust removal position at the lowest point within the rotation range. The cover (6) is facing downward under the rotation of the base (12) to correspond to the base (5) or the negative pressure dust removal assembly respectively.

4. The three-dimensional mixing device according to claim 3, characterized in that, The negative pressure dust removal assembly includes a collection hopper (13), a negative pressure pipe (14), and a nozzle (15). The collection hopper (13) is fixed relative to the support (1). The negative pressure pipe (14) is connected to the lower end of the collection hopper (13). The nozzle (15) is fixed to the inner wall of the collection hopper (13), and the nozzle points to the upper opening of the collection hopper (13).

5. The three-dimensional mixing apparatus according to claim 3, characterized in that, The rotating seat (11) is a rotary cylinder (16), and the base (12) is a telescopic cylinder (17).

6. The three-dimensional mixing apparatus according to claim 3, characterized in that, The rotating seat (11) is rotatably provided with a switching shaft (25) that rotates synchronously with the base (12) and a power ring (26) that drives the switching shaft (25) to move axially. The fixed plate (7) is connected to a docking shaft (27) that is coaxial with the switching shaft (25) and rotatably connected to the rotating arm (4) through a pulley assembly. One end of the switching shaft (25) is provided with a clutch assembly for docking with the docking shaft (27), and the other end is provided with a linkage assembly that is linked with the cover (6). The clutch assembly includes a docking block (28) coaxially arranged at the near ends of the switching shaft (25) and the docking shaft (27), and the two docking blocks (28) are tightly fitted to rotate synchronously; the linkage assembly includes a telescopic rod (29) movably arranged on the base (12) and a connecting rod (30) hinged to one end of the switching shaft (25), one end of the telescopic rod (29) movably passes through the base (12) and is fixedly connected to the cover (6), and the other end of the connecting rod (30) is hinged to the telescopic rod (29).

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