Horizontal blowing coulter mixer for powder mixing
By coordinating the rotation of the inner cylinder and the stirring plow blades, along with the crushing action of the grinding rollers and the suction system, the problem of dead zones in the horizontal plow blade mixer is solved, achieving uniform mixing of powders and improving the mixing effect.
Patent Information
- Application Number
- CN202511411008.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-01-23
AI Technical Summary
Existing horizontal plow mixers have dead zones during the mixing process, resulting in uneven powder mixing and affecting product quality and performance.
The horizontal air-blowing plow mixer uses an inner cylinder rotation to avoid dead angles in the mixing. The inner cylinder and the mixing plow rotate in opposite directions. The low-speed rotation of the inner cylinder and the high-speed rotation of the mixing plow work together, combined with the grinding roller and the air suction system, to achieve all-round mixing without dead angles.
It achieves all-round uniform mixing of powder, avoids dead corners in the mixing, ensures that the powder is mixed without dead corners inside the mixer, and improves the mixing effect.
Smart Images
Figure CN121372148A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of powder mixing, and particularly relates to a horizontal air blowing plough blade mixing machine for powder mixing. BACKGROUND
[0002] The horizontal plough blade mixing machine is a high-efficiency and widely used industrial mixing device, and the main body is in a horizontal cylindrical structure, and a plurality of groups of powerful stirring devices in the shape of plough blades are arranged inside. In the mixing process, the motor drives the main shaft to rotate the plough blades at high speed, and the unique shape of the plough blades can produce strong turning, shearing and throwing effects on the materials, so that the materials can be fully mixed in the horizontal direction and effectively convected in the vertical direction, so that different materials such as powder, particles or fibers can be uniformly dispersed and fully fused in a short time.
[0003] In the actual application process, since the plough blades do not directly contact with the cylinder during rotation, there is inevitably a certain gap between the two. This has become a 'blind area' for powder stirring, forming a stirring dead angle. Moreover, not only does this problem exist in the gap between the plough blades and the cylinder, but also similar stirring dead angles exist near the two end parts of the cylinder. The existence of these stirring dead angles seriously affects the normal turning of the materials in the cylinder. Part of the powder is trapped in these dead angle areas and cannot participate in the overall stirring cycle, leading to uneven powder mixing, which may affect the quality and performance of the final product. SUMMARY
[0004] The present application provides a horizontal air blowing plough blade mixing machine for powder mixing, which has the advantages of avoiding the generation of stirring dead angles by rotating the inner cylinder, to solve the problem of stirring dead angles in the stirring process of the current plough blade mixing machine.
[0005] To achieve the above purpose, the present application adopts the following technical scheme: a horizontal air blowing plough blade mixing machine for powder mixing, comprising: a support, an outer cylinder is fixedly installed on the inner side of the support, an inner cylinder is movably installed in the inner side of the outer cylinder, and a movable top plate is movably installed on the opening of the inner cylinder and is pushed outward by a spring to the inner side wall of the outer cylinder; a stirring plough blade is movably installed on the support and coaxial with the inner cylinder and is driven by a mixing motor; a reduction gear assembly is fixed on the support, the input end is connected with the mixing motor, and the output end is connected with the inner cylinder, so as to realize low-speed rotation of the inner cylinder and opposite rotation direction of the stirring plough blade; the rotation of the inner cylinder realizes continuous turning of the powder raw materials, and avoids the generation of stirring dead angles.
[0006] Further, the inner cylinder is in the shape of a "C" letter.
[0007] Further, the central axes of the inner cylinder and the outer cylinder are not collinear.
[0008] Further, the bottom of the inner side of the outer cylinder is movably provided with a grinding roller, and the side of the support is fixedly provided with a grinding motor, and a torque limiting alarm assembly is arranged between the output end of the grinding motor and the grinding roller.
[0009] Further, the inner side of the outer cylinder is fixedly provided with a connecting bridge.
[0010] Further, the torque limiting alarm assembly comprises a limiting disc, a connecting disc, a limiting top rod and an alarm disc; the limiting disc and the alarm disc are fixedly arranged on the output shaft of the grinding motor, the connecting disc is fixedly arranged on the rotating shaft of the grinding roller, and the side of the limiting disc is provided with a plurality of limiting top rods which are pushed by springs and abut against the arc grooves in the side of the connecting disc.
[0011] Further, the filter holes formed in the side wall of the inner cylinder are communicated with the air suction grooves arranged in the inner cylinder, and a fan blade is movably arranged in the air suction groove of the inner cylinder and is driven by an air suction motor fixed to the end of the inner cylinder.
[0012] Further, the output direction of the air suction groove is tangent to the inner side wall of the inner cylinder.
[0013] Further, a top hole frame is movably arranged in the air suction groove of the inner cylinder, and the top hole frame is pushed out from the filter hole by a spring; a driving gear meshing with the gear row at the end of the top hole frame is fixedly arranged on the outer part of the rotating shaft of the fan blade, and a pressure detection assembly is arranged at the opening part of the inner cylinder, and when the pressure increases, the air suction motor is started by the pressure detection assembly.
[0014] The present application has the following advantages:
[0015] The horizontal air blowing plough mixer for powder mixing is characterized in that a rotatable inner cylinder is arranged in the inner part of the outer cylinder, and the rotating direction of the inner cylinder is opposite to the rotating direction of the stirring plough arranged in the inner cylinder.
[0016] At the same time, the stirring plough arranged in the inner cylinder also rotates at high speed, and since the rotating direction of the stirring plough is opposite to the inner cylinder, the plough can apply force to the powder from different directions when stirring the powder. The unique shape of the plough can produce strong stirring and throwing effects on the powder, further promoting the mutual mixing of the powder. The rotation of the inner cylinder continuously changes the position of the powder, providing more opportunities for the stirring plough to contact and stir the powder in different areas; and the continuous stirring of the stirring plough ensures that the powder can be fully mixed after each position change.
[0017] Through the synergy of the rotation of the inner cylinder and the continuous stirring of the stirring plough, the powder can be stirred in all directions and without dead angles inside the mixer. Whether the powder is at the center of the inner cylinder or near the wall of the inner cylinder, it can be uniformly mixed under this unique stirring mechanism, effectively avoiding the stirring dead angle problem that may occur in traditional mixing equipment. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0019] The present application can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the accompanying drawings, in which:
[0020] Figure 1 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0021] Figure 2 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0022] Figure 3 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0023] Figure 4 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0024] Figure 5 is a schematic diagram of the overall internal three-dimensional structure of the present application; Figure 4 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0025] Figure 6 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0026] Figure 7 is a schematic diagram of the overall internal three-dimensional structure of the present application;
[0027] In the figure: 1, support; 2, outer cylinder; 3, mixing motor; 4, speed reducer assembly; 5, grinding motor; 6, torque limiting alarm assembly; 601, limit disc; 602, connecting disc; 603, limit top rod; 604, alarm disc; 7, inner cylinder; 700, air suction groove; 8, movable top plate; 9, top hole frame; 10, air suction motor; 11, stirring plough; 12, drive gear; 13, grinding roller; 130, connecting bridge; 14, fan blade; 15, pressure detection assembly. DETAILED DESCRIPTION
[0028] Clearly, the embodiments described are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.
[0029] Embodiment one, please refer to Figure 1 and Figure 2 It can be seen that the support 1 provides support for the entire device, and the outer cylinder 2 is mounted on the inner side through bolt fastening. In combination with Figure 2 , Figure 3 and Figure 6 It can be seen that the inner cylinder 7 is movably mounted in the inner side of the outer cylinder 2, so that the inner cylinder 7 and the outer cylinder 2 can only rotate relative to each other, and the inner cylinder 7 is in the shape of a "C" letter. The movable top plate 8 is movably mounted on the opening of the inner cylinder 7 and is pushed outward by the spring. Specifically, as shown in Figure 5 , the movable top plate 8 is limited to only radial reciprocating motion by the circular tube, and the spring is arranged on the outer side of the circular tube. Under the action of the spring, the end of the movable top plate 8 always abuts against the inner side wall of the outer cylinder 2.
[0030] The stirring plough 11 coaxially arranged with the inner cylinder 7 is movably mounted in the inner side of the support 1. The stirring plough 11 is rotated in the inner cylinder 7 to realize the stirring of the powder raw materials in the inner cylinder 7. For its driving mode, in combination with Figure 2 It can be seen that the mixing motor 3 coaxially arranged with the stirring plough 11 is fixedly mounted on the side of the support 1, and the mixing motor 3 can drive the stirring plough 11 to rotate at high speed. The reduction gear assembly 4 connected with the output shaft of the mixing motor 3 is fixedly mounted on the side of the support 1, and the reduction gear assembly 4 realizes the low-speed rotation of the inner cylinder 7, and the rotation direction is opposite to that of the stirring plough 11. Specifically, the reduction gear assembly 4 includes a group of reduction gears that output power from the output shaft of the mixing motor 3, and the output end of the reduction gear assembly is meshed and transmitted by the cylindrical gear and the gear ring at the end of the inner cylinder 7, so that the mixing motor 3 drives the stirring plough 11 to rotate clockwise at high speed, while the inner cylinder 7 rotates counterclockwise at low speed. The rotation direction is shown in Figure 3 .
[0031] In actual application, the powder raw materials to be mixed are poured into the inner cylinder 7 through the feeding pipe on the upper side of the outer cylinder 2. Better, the opening of the inner cylinder 7 can be placed below the feeding pipe to ensure that the powder raw materials conveyed in the outer cylinder 2 can be directly poured into the inner cylinder 7.
[0032] Subsequently, as shown in Figure 3As shown, the mixed motor 3 is started, and the mixed motor 3 drives the stirring plough 11 to rotate clockwise at high speed, so that the stirring plough 11 realizes the stirring and mixing of the powder raw materials in the inner cylinder 7. At the same time, the mixed motor 3 realizes the counterclockwise rotation of the inner cylinder 7 through the speed reduction gear assembly 4, and the inner cylinder 7 is continuously rotated, so that the raw materials in the inner cylinder 7 are continuously stirred, and the problem of local stirring dead angle is avoided. In the process of continuous rotation of the inner cylinder 7, even if the raw materials in the inner cylinder 7 flow into the outer cylinder 2 from the opening thereof, the movable top plate 8 always moves to the inner side of the outer cylinder 2 in the process of continuous rotation of the inner cylinder 7, so that the movable top plate 8 can shovel the powder raw materials scattered into the outer cylinder 2. As shown, Figure 3 If the movable top plate 8 shovels the powder raw materials on the surface thereof at this time, the movable top plate 8 is inclined upward when the inner cylinder 7 drives the movable top plate 8 to rotate counterclockwise, and finally the shovelled powder raw materials are poured into the inner cylinder 7 again.
[0033] Finally, after the raw materials are stirred and mixed, the discharge pipe at the lower side of the outer cylinder 2 is opened, and the mixed raw materials can be output from the discharge pipe.
[0034] It can be seen that, in the present application, the inner cylinder 7 is rotated, the position of the external component of the equipment is relatively fixed, the operator will not directly contact the rotating part, and the safety in use is ensured. On the other hand, the inner cylinder 7 continuously mixes the powder raw materials, the powder is continuously stirred, and the problem of uneven mixing of the powder raw materials caused by stirring dead angle is avoided.
[0035] Example two is further improved on the basis of example one, please refer to Figure 2 and Figure 3 It can be obviously seen that the central axes of the inner cylinder 7 and the outer cylinder 2 are not collinear. According to Figure 3 As shown, when the movable top plate 8 passes through the vertical state during the counterclockwise rotation of the inner cylinder 7, part of the powder raw materials stirred by the stirring plough 11 can be thrown out from the opening, and the flying powder is located in the inner cavity of the outer cylinder 2 and at the left side of the inner cylinder 7. As the inner cylinder 7 continuously rotates counterclockwise, the distance between the inner cylinder 7 and the inner side of the outer cylinder 2 is continuously shortened, so that the large particles and block powder raw materials can be crushed. More specifically, the outer side of the inner cylinder 7 is relatively rough, so as to enhance the crushing strength of the powder raw materials. Finally, the crushed powder raw materials enter the inner cavity of the outer cylinder 2 and are located at the right side of the inner cylinder 7, and after the movable top plate 8 shovels the crushed powder raw materials again, the crushed powder raw materials are finally input into the inner cavity of the inner cylinder 7 for mixing.
[0036] On this basis, in order to further enhance the crushing of the powder raw materials, in combination with Figure 2 , Figure 3 and Figure 7It can be seen that the outer cylinder 2 is movably mounted inside the inner cylinder 7, and the grinding roller 13 is located at the inner bottom of the outer cylinder 2, and the grinding roller 13 is located at the shortest distance between the inner cylinder 7 and the outer cylinder 2. The side of the support 1 is fixedly mounted with a grinding motor 5, and a torque limiting alarm assembly 6 is arranged between the output end of the grinding motor 5 and the grinding roller 13, which limits the torque output of the grinding roller 13 to avoid the problem of overload. In the actual application process, when the movable top plate 8 passes through the vertical state, the inner cylinder 7 continues to drive the movable top plate 8 to move along the inner side of the outer cylinder 2. On the one hand, the stirring plough 11 throws part of the raw material into the inner cylinder 7 and the outer cylinder 2, and finally grinds and crushes through the grinding roller 13. On the other hand, as the inner cylinder 7 drives the movable top plate 8 to move counterclockwise along the left side of the outer cylinder 2, the movable top plate 8 gradually retracts to the inner side of the inner cylinder 7. At this time, the area formed by the surface of the movable top plate 8, the outer side of the inner cylinder 7 and the inner side of the outer cylinder 2 gradually shrinks. As the inner cylinder 7 continues to rotate, the airflow in this area will be compressed and flow along the gap between the inner cylinder 7 and the outer cylinder 2, that is, the grinding roller 13 part to the right side chamber. Further aggravate the powder raw material to the grinding roller 13 direction push.
[0037] In the application process, in order to prevent the movable top plate 8 from directly contacting the grinding roller 13 and causing serious contact wear, a connecting bridge 130 is fixedly installed on the inner side of the outer cylinder 2. The connecting bridge 130 is a semicircular ring. When the movable top plate 8 passes through the grinding roller 13, the connecting bridge 130 blocks the movable top plate 8 to retract to the inside of the inner cylinder 7, thereby preventing direct contact between the inner cylinder 7 and the grinding roller 13.
[0038] Further, as shown in Figure 7 The torque limiting alarm assembly 6 includes a limiting disc 601, a connecting disc 602, a limiting top rod 603 and an alarm disc 604. The limiting disc 601 and the alarm disc 604 are fixedly installed on the output shaft of the grinding motor 5, and the connecting disc 602 is fixedly installed on the rotating shaft of the grinding roller 13. A plurality of limiting top rods 603 are arranged on the side of the limiting disc 601 and pushed by springs to resist the arc groove on the side of the connecting disc 602. According to the transmission between the limiting top rod 603 and the connecting disc 602, the output shaft of the grinding motor 5 drives the grinding roller 13 to rotate synchronously. When the grinding roller 13 is overloaded, the limiting top rod 603 can be separated from the arc groove in the connecting disc 602 and resist the end face of the connecting disc 602. At the same time, when the limiting top rod 603 is separated from the arc groove of the connecting disc 602, the limiting top rod 603 tends to move towards the alarm disc 604. As the limiting disc 601 drives the limiting top rod 603 to rotate continuously, the limiting top rod 603 frequently contacts and separates from the connecting disc 602. The limiting top rod 603 reciprocates and hits the alarm disc 604, and the alarm disc 604 continuously emits sound to alert the operator that the grinding roller 13 is abnormally stuck.
[0039] Example three is further improved on the basis of example two, please refer to Figures 4-6 It can be seen that the filter hole of the inner cylinder 7 side wall is communicated with the air suction groove 700 arranged inside, the inner cylinder 7 is movably mounted with the fan blade 14 located in the air suction groove 700, and the fan blade 14 is driven by the air suction motor 10 fixed at the end of the inner cylinder 7. When the air suction motor 10 rotates, the airflow outside the inner cylinder 7 can be input to the inside of the inner cylinder 7. Moreover, the output direction of the air suction groove 700 is tangent to the inner side wall of the inner cylinder 7, so that the airflow is blown to further blow the powder raw materials gathered at the bottom of the inner cylinder 7. In the application process, as shown in Figure 4 and Figure 5 When the inner cylinder 7 drives the movable top plate 8 to be located in the left inner cavity of the outer cylinder 2, the fan blade 14 is rotated by the air suction motor 10, the filter hole sucks the airflow in the inner cavity of the outer cylinder 2 into the air suction groove 700, and finally is sprayed from the inside of the inner cylinder 7. In this process, the powder raw materials output from the opening of the inner cylinder 7 are filtered through the filter hole, the raw material particles meeting the filter diameter directly pass through the filter hole and the air suction groove 700, and finally are transported back to the inside of the inner cylinder 7. The particles of the large particle size powder cannot pass through and are placed on the outside of the inner cylinder 7. Part of the particles will directly fall to the grinding roller 13 for crushing, and part will be attached to the outside of the inner cylinder 7, and finally the part of the filtered raw material particles will be transported to the grinding roller 13 along with the continuous rotation of the inner cylinder 7.
[0040] On this basis, in order to avoid the problem of blockage of the filter hole when it works for a long time, it can be seen from Figures 3-6 that the inner side of the inner cylinder 7 is movably mounted with the top hole frame 9 located in the air suction groove 700, the top hole frame 9 is pushed out by the spring, and after the top hole frame 9 is pushed out from the filter hole, the powder raw materials blocked at the filter hole part can be pushed out. Moreover, the rotating shaft of the fan blade 14 is fixedly installed with the driving gear 12 engaged with the end tooth row of the top hole frame 9, when the fan blade 14 rotates, according to the engagement between the driving gear 12 and the top hole frame 9, the top hole frame 9 can compress the spring and relatively move away from the filter hole. The opening part of the inner cylinder 7 is provided with a pressure detection assembly 15, when the pressure increases, the pressure detection assembly 15 can start the air suction motor 10; otherwise, the air suction motor 10 stops working.
[0041] In the actual application process, after the powder raw materials are input by the feeding pipe, it is not necessary to block or set the air permeable hole with filtering.
[0042] When the movable top plate 8 is located in the right inner cavity of the outer cylinder 2, since the inner cavity of the outer cylinder 2 is communicated with the outside by the feeding pipe, the internal pressure is consistent with the external environment pressure, the air suction motor 10 will not start, the top hole frame 9 is pushed out from the filter hole by the spring and clears the blockage of the filter hole.
[0043] When the movable top plate 8 passes the input pipe and enters the left cavity of the outer cylinder 2, the left cavity of the outer cylinder 2 will be pressurized as the inner cylinder 7 rotates with the movable top plate 8. When the pressure detection component 15 detects the pressure increase, the suction motor 10 is started to rotate the fan blade 14, and the drive gear 12 drives the top hole frame 9 to move away from the filter hole. When the end of the top hole frame 9 moves to the rear of the drive gear 12, the top hole frame 9 will not move further. After that, the powder raw material discharged from the opening of the inner cylinder 7 will be filtered through the filter hole. The filtered particles will be sent to the grinding roller 13 for crushing. When the movable top plate 8 passes the grinding roller 13, the cavity of the outer cylinder 2 is again connected to the outside through the input pipe, and the top hole frame 9 is again ejected.
[0044] It can also be seen that when the movable top plate 8 moves to the left cavity of the outer cylinder 2, if the movable top plate 8 does not normally eject, causing the pressure detection component 15 not to start the suction motor 10, it indicates that the movable top plate 8 is abnormally ejected outward and needs to be repaired. After that, since the top hole frame 9 is always ejected from the filter hole, when it passes the grinding roller 13, the top hole frame 9 passing through the filter hole will reach the grinding roller 13 and cause the grinding roller 13 to rotate with increased load. Finally, according to the content described in Example Two, an alarm is realized.
Claims
1. A horizontal air swept plowshare mixer for powder mixing, characterized in that, include: The bracket (1) has an outer cylinder (2) fastened to its inner side, and an inner cylinder (7) is movably installed inside the outer cylinder (2). A movable top plate (8) is movably installed on the opening of the inner cylinder (7) and is pushed against the inner wall of the outer cylinder (2) by a spring. The mixing plow blade (11) is movably mounted on the bracket (1), coaxial with the inner cylinder (7), and driven by the mixing motor (3); The reduction gear assembly (4) is fixed on the bracket (1), with its input end connected to the mixing motor (3) and its output end connected to the inner cylinder (7), so that the inner cylinder (7) rotates at low speed and in the opposite direction to the rotation of the stirring plow (11); The rotation of the inner cylinder (7) enables the powder raw materials to be continuously turned over, avoiding the generation of dead corners in the stirring.
2. The horizontal air swept plowshare mixer for powder mixing according to claim 1, characterized in that, The inner cylinder (7) is shaped like a "C".
3. The horizontal air swept plowshare mixer for powder mixing according to claim 1, characterized in that, The central axes of the inner cylinder (7) and the outer cylinder (2) are not collinear.
4. The horizontal air swept plowshare mixer for powder mixing of claim 1, wherein, A grinding roller (13) is movably installed on the bottom inner side of the outer cylinder (2), a grinding motor (5) is fixedly installed on the side of the bracket (1), and a torque limiting alarm component (6) is provided between the output end of the grinding motor (5) and the grinding roller (13).
5. A horizontal air swept plowshare mixer for powder mixing according to claim 4, characterized in that, A connecting bridge (130) is fixedly installed on the inner side of the outer cylinder (2).
6. The horizontal air swept plowshare mixer for powder mixing of claim 4, wherein, The torque limiting alarm assembly (6) includes a limit plate (601), a connecting plate (602), a limiting rod (603), and an alarm plate (604). The limiting plate (601) and the alarm plate (604) are fixedly installed on the output shaft of the grinding motor (5), and the connecting plate (602) is fixedly installed on the rotating shaft of the grinding roller (13). The side of the limiting plate (601) is provided with multiple limiting rods (603) that are pushed by springs and abut against the arc groove on the side of the connecting plate (602).
7. The horizontal air swept plowshare mixer for powder mixing of claim 4, wherein, The filter holes opened on the side wall of the inner cylinder (7) are connected to the air intake groove (700) provided inside. The fan blade (14) located in the air intake groove (700) is movably installed on the inner cylinder (7). The fan blade (14) is driven by the air intake motor (10) fixed at the end of the inner cylinder (7).
8. A horizontal air swept plowshare mixer for powder mixing according to claim 7, characterized in that, The output direction of the suction groove (700) is tangent to the inner wall of the inner cylinder (7).
9. The horizontal air swept plowshare mixer for powder mixing of claim 7, wherein, The inner cylinder (7) is movably installed with a top hole frame (9) located in the air intake groove (700). The top hole frame (9) is pushed out of the filter hole by a spring. The fan blade (14) is fixedly installed with a drive gear (12) that meshes with the toothed row at the end of the top hole frame (9). The opening of the inner cylinder (7) is provided with a pressure detection component (15). When the pressure increases, the pressure detection component (15) starts the air intake motor (10).