Powder material tubular conveying mechanism with vibration function

Abstract

The utility model relates to powder conveying technical field, and disclose a kind of tubular transmission mechanism of powdery material with vibration function, including conveying pipe, displacement device, vibration ring, vibration ring is slidably installed in the outer periphery of conveying pipe, and vibration ring is driven to reciprocate along the axis direction of conveying pipe by displacement device, the inner wall of vibration ring is provided with the multiple vibration components of circumferential uniform distribution, and vibration is transmitted to powdery material by dynamic knocking of vibration component to the outer wall of displacement device.The utility model drives vibration ring to reciprocate along the axis of conveying pipe by displacement device, simultaneously, vibration component of vibration ring inner wall carries out circumferential dynamic knocking to pipe wall, and forms the unblocking mode of "global coverage+multiple point vibration", when conveying strong viscosity milk powder, vibration frequency can reach 0-100Hz, can effectively break powder bridging, reduce pipeline blockage rate, solve the problem of poor conveying caused by powder adhesion, caking.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology, specifically to a tubular conveying mechanism for powdered materials with vibration function. Background Technology

[0002] Powdered materials (such as food additives, chemical raw materials, and pharmaceutical powders) are easily affected by factors such as static electricity, humidity, and interparticle forces during pipeline transportation due to their small particle size and large specific surface area. This results in poor flowability, easy clumping, or adhesion to the pipe wall. In particular, for highly viscous or hygroscopic materials (such as milk powder, graphite powder, and nanomaterials), traditional gravity or pneumatic conveying methods often encounter problems such as blockage, bridging, and stratification, which seriously affect production efficiency and product quality.

[0003] Currently, tubular conveying mechanisms for powdery materials mostly employ methods such as screw conveying, pneumatic conveying, or mechanical vibration assistance, but significant shortcomings still exist:

[0004] 1. Screw conveyors are prone to particle breakage and have poor adaptability to sticky powders;

[0005] 2. Pneumatic conveying consumes a lot of energy and is prone to dust leakage;

[0006] 3. Ordinary vibration mechanisms are often installed at a fixed position on the conveying pipeline, making it difficult to dynamically vibrate along the pipeline, resulting in limited unblocking effect or excessive vibration causing powder stratification.

[0007] To address these technical challenges, this application proposes a tubular conveying mechanism for powdered materials with vibration function. Utility Model Content

[0008] To address the technical problems existing in the background art, this utility model proposes a tubular conveying mechanism for powdered materials with vibration function.

[0009] This utility model proposes a tubular conveying mechanism for powdered materials with vibration function, including a conveying pipe, a displacement device, and a vibrating ring. The vibrating ring is slidably fitted on the outer circumference of the conveying pipe. The displacement device drives the vibrating ring to reciprocate along the axial direction of the conveying pipe. The inner wall of the vibrating ring is provided with multiple circumferentially distributed vibration components. The vibration components dynamically strike the outer wall of the displacement device to transmit vibration to the powdered material.

[0010] Preferably, the vibration assembly includes a vibrating plate, a transmission assembly, and a drive assembly. The vibrating plate is disposed between the inner wall of the vibrating ring and the outer wall of the conveying pipe. The vibrating ring has an internal cavity for accommodating the transmission assembly and the drive assembly. The input end of the transmission assembly is connected to the output end of the drive assembly. The output end of the transmission assembly extends to the inner ring of the vibrating ring and is fixed to the vibrating plate. The drive assembly drives the transmission assembly to move the vibrating plate radially back and forth, thereby dynamically striking the outer wall of the conveying pipe.

[0011] Preferably, the transmission assembly includes a movable rod, one end of which is disposed in the movable cavity and is equipped with a transmission block connected to the output end of the drive assembly. The other end of the movable rod extends radially to the inner ring of the vibration ring and is fixed to the vibration plate. A telescopic spring is sleeved on the movable rod and fixed between the vibration plate and the vibration ring. The drive assembly drives the transmission block to reciprocate radially.

[0012] Preferably, the drive assembly includes an electric motor and a cam. The electric motor is mounted on the side wall of the movable cavity, and the axis of the electric motor is perpendicular to the axis of the movable rod. The cam is mounted on the output end of the electric motor, and the edge of the cam abuts against the transmission block.

[0013] Preferably, the end of the transmission block near the cam is spherical.

[0014] Preferably, the outer periphery of the cam has multiple protrusions, which are evenly distributed circumferentially and abut against the transmission block in sequence as driven by the electric motor.

[0015] Preferably, the vibrating plate is arc-shaped with its inner arc surface facing the conveying pipe. Multiple steel balls are evenly distributed on the inner arc surface of the vibrating plate, and the steel balls are in contact with the outer wall of the conveying pipe.

[0016] Preferably, it also includes a base (the conveying pipe is inclined above the base, the lower end of the conveying pipe is fixed to one side of the upper end of the base by a spring connecting seat, and the upper end of the conveying pipe is fixed to a pad on the other side of the upper end of the base by another spring connecting seat).

[0017] Preferably, the spring connector includes a support fixed to the lower surfaces of the upper and lower ends of the conveying pipe, and the bottom of the support is fixed to the upper surface of the pad or base by a compression spring.

[0018] Preferably, the upper end face of the base is also equipped with a bracket set around the conveying pipe, the upper end of the bracket is equipped with a top plate, the displacement device is a linear module and is installed on the lower end face of the top plate, the slider end of the displacement device faces downward and the movement path is parallel to the axis of the conveying pipe, and the upper end of the vibration ring is fixedly connected to the slider end of the displacement device through a connecting block.

[0019] The tubular conveying mechanism for powdered materials with vibration function proposed in this utility model has the following beneficial effects:

[0020] (i) The vibration ring is driven to move back and forth along the axis of the conveying pipe by the displacement device. At the same time, the vibration component on the inner wall of the vibration ring dynamically knocks on the pipe wall in a circumferential direction, forming a "full coverage + multi-point vibration" unblocking mode. When conveying highly viscous milk powder, the vibration frequency can reach 0-100Hz, which can effectively break up powder bridging, reduce the pipe blockage rate, and solve the problem of poor conveying caused by powder adhesion and agglomeration.

[0021] (ii) The vibration assembly drives the moving rod through the cam to drive the vibrating plate to reciprocate radially. The impact force can be buffered by the telescopic spring, which can remove the powder adhering to the pipe wall and avoid the particle breakage caused by excessive vibration. Compared with the forced pushing of the screw conveyor, this design is conducive to protecting the integrity of the powder, and is especially suitable for materials with high requirements for particle shape, such as pharmaceutical powder and food additives.

[0022] (iii) Multiple vibration components are evenly distributed around the inner wall of the vibration ring. The steel balls of each component contact the outer wall of the conveying pipe, forming multi-angle impacts, which helps to reduce the amount of powder residue in various parts of the pipe wall. In addition, the inclined setting of the conveying pipe in conjunction with the vibration greatly improves the stability of the powder flow rate and avoids the phenomenon of stratification.

[0023] (iv) The conveying pipe is connected to the base through a spring connector. When vibrating, the pipe can generate a small resonance, which amplifies the impact force of the vibration component and enhances the disturbance effect on the powder inside the pipe. At the same time, the spring buffer can reduce the transmission of vibration to the base, reduce the overall noise of the equipment, and help improve the operating environment.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Figure 1 This is a front structural diagram of the present invention;

[0026] Figure 2 This is a side view of the vibration ring of this utility model.

[0027] Figure 3 This utility model Figure 2 Schematic diagram of the structure of the vibration unit;

[0028] Figure 4 This is a front cross-sectional view of the vibration unit of this utility model.

[0029] Figure descriptions: 1. Conveying pipe; 2. Displacement device; 3. Vibrating ring; 4. Vibration assembly; 41. Vibrating plate; 42. Movable rod; 43. Transmission block; 44. Telescopic spring; 45. Electric motor; 46. Cam; 47. Steel ball; 5. Base; 6. Pad; 7. Spring connecting seat; 8. Bracket; 9. Top plate; 10. Connecting block; 11. Movable cavity. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] Please see Figure 1 and Figure 2 A tubular conveying mechanism for powdered materials with vibration function includes a conveying pipe 1, a displacement device 2, and a vibrating ring 3. The vibrating ring 3 is slidably fitted on the outer periphery of the conveying pipe 1. The displacement device 2 drives the vibrating ring 3 to reciprocate along the axial direction of the conveying pipe 1. The inner wall of the vibrating ring 3 is provided with multiple circumferentially distributed vibration components 4. The vibration components 4 dynamically strike the outer wall of the displacement device 2 to transmit vibration to the powdered material.

[0032] To address the problems of clogging and adhesion to pipe walls in traditional powder material conveying, this device achieves efficient conveying through "moving vibration + dynamic tapping". The vibrating ring 3 moves back and forth along the conveying pipe 1 under the drive of the displacement device 2. In conjunction with the circumferentially distributed vibrating components 4, the conveying pipe can be tapped throughout the entire process. The vibration frequency is 50-100Hz, which can effectively break up powder bridging, such as agglomerates of milk powder and graphite powder, reducing the clogging rate to below 1%, thus solving the conveying problem of viscous or hygroscopic materials.

[0033] Specifically, such as Figure 3 and Figure 4 As shown, the vibration assembly 4 includes a vibration plate 41, a transmission assembly, and a drive assembly. The vibration plate 41 is disposed between the inner wall of the vibration ring 3 and the outer wall of the conveying pipe 1. The vibration ring 3 has an active cavity 11 for accommodating the transmission assembly and the drive assembly. The input end of the transmission assembly is connected to the output end of the drive assembly. The output end of the transmission assembly extends to the inner ring of the vibration ring 3 and is fixed to the vibration plate 41. The drive assembly drives the transmission assembly to drive the vibration plate 41 to reciprocate radially and dynamically strike the outer wall of the conveying pipe 1.

[0034] The vibration assembly 4 adopts a modular design. The active cavity 11 isolates the driving component from the powder environment to prevent dust intrusion from affecting its lifespan. The transmission assembly converts the power of the driving component into the radial impact force (5-20N) of the vibrating plate 41. The impact frequency is coordinated with the moving speed of the vibrating ring to ensure that the powder inside the tube is continuously disturbed and to prevent adhesion.

[0035] Furthermore, such as Figure 3 and Figure 4 As shown, the transmission assembly includes a movable rod 42. One end of the movable rod 42 is disposed in the movable cavity 11 and is equipped with a transmission block 43 connected to the output end of the drive assembly. The other end of the movable rod 42 extends radially to the inner ring of the vibration ring 3 and is fixed to the vibration plate 41. A telescopic spring 44 is sleeved on the movable rod 42 and fixed between the vibration plate 41 and the vibration ring 3. The drive assembly drives the transmission block 43 to reciprocate radially.

[0036] The movable rod 42 slides radially, and the telescopic spring 44 provides a restoring force, causing the vibrating plate 41 to rebound quickly after being struck, forming continuous striking. The transmission block 43 converts the rotational motion of the drive component into radial linear motion, with a transmission efficiency of 95%.

[0037] Furthermore, the drive assembly includes an electric motor 45 and a cam 46. The electric motor 45 is mounted on the side wall of the movable cavity 11, and the axis of the electric motor 45 is perpendicular to the axis of the movable rod 42. The cam 46 is mounted on the output end of the electric motor 45, and the edge of the cam 46 abuts against the transmission block 43.

[0038] The electric motor 45 drives the cam 46 to rotate. The cam profile design causes the transmission block 43 to produce a radial displacement of 5-10mm. The striking frequency is synchronized with the motor speed (25Hz). The vertical axis layout saves the space of the moving cavity and makes the vibration ring structure compact.

[0039] The end of the transmission block 43 near the cam 46 is spherical. The spherical design reduces the contact stress between the transmission block 43 and the cam 46, reduces wear, extends the life of the component, and ensures smooth transmission and avoids jamming.

[0040] Furthermore, the outer periphery of the cam 46 has multiple protrusions, which are evenly distributed circumferentially and abut against the transmission block 43 in sequence as driven by the electric motor 45.

[0041] Three to six protrusions (3-5mm high) are evenly distributed around the circumference, so that the transmission block 43 is impacted multiple times per revolution, increasing the impact frequency to 150-300 times / minute, which enhances the disturbance effect on the powder inside the tube, and is especially suitable for conveying highly viscous materials such as nanomaterials.

[0042] Specifically, such as Figure 3As shown, the vibrating plate 41 is arc-shaped and its inner arc surface is opposite to the conveying pipe 1. Multiple steel balls 47 are evenly distributed on the inner arc surface of the vibrating plate 41, and the steel balls 47 are in contact with the outer wall of the conveying pipe 1.

[0043] The arc-shaped vibrating plate 41 fits against the outer wall of the conveying pipe, and the steel balls 47 reduce friction during impact to avoid scratching the pipe wall. The even distribution of steel balls ensures that the impact force is transmitted evenly.

[0044] Specifically, such as Figure 1 As shown, the mechanism also includes a base 5, a conveying pipe 1 is inclinedly arranged above the base 5, the lower end of the conveying pipe 1 is fixed to one side of the upper end of the base 5 by a spring connecting seat 7, and the upper end of the conveying pipe 1 is fixed to the pad 6 on the other side of the upper end of the base 5 by another spring connecting seat 7.

[0045] The conveying pipe 1 is tilted at an angle of 5-15°, using gravity to assist in conveying, and further increasing the flow rate with vibration. The spring connector 7 allows the pipe to generate a small resonance, amplifying the impact effect, while reducing the transmission of vibration to the base.

[0046] Furthermore, the spring connecting seat 7 includes a seat support fixed to the lower surfaces of the upper and lower ends of the conveying pipe 1, and the bottom of the seat support is fixed to the upper surface of the pad 6 or the base 5 by a compression spring.

[0047] Compression springs provide elastic support, causing the conveying pipe to oscillate slightly axially when vibrating, enhancing the disturbance to the powder inside the pipe, while buffering impact and protecting pipe joints (such as flange connections).

[0048] Furthermore, such as Figure 1 and Figure 2 As shown, a bracket 8 is also installed on the upper surface of the base 5, which is located around the conveying pipe 1. A top plate 9 is installed on the upper end of the bracket 8. The displacement device 2 is a linear module and is installed on the lower surface of the top plate 9. The slider end of the displacement device 2 faces downward and its movement path is parallel to the axis of the conveying pipe 1. The upper end of the vibration ring 3 is fixedly connected to the slider end of the displacement device 2 through the connecting block 10.

[0049] The linear module drives the vibrating ring 3 to move smoothly. The bracket 8 and the top plate 9 form a rigid support to prevent shaking during vibration. The connecting block 10 adopts a lightweight design to reduce the load on the module and extend its life. This structure allows the vibrating ring to cover the entire length of the conveying pipe and adapt to pipes of different lengths.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tubular conveying mechanism for powdered materials with vibration function, comprising a conveying pipe (1), a displacement device (2), and a vibrating ring (3), characterized in that, The vibrating ring (3) is slidably mounted on the outer periphery of the conveying pipe (1). The vibrating ring (3) is driven to reciprocate along the axis of the conveying pipe (1) by the displacement device (2). Multiple vibrating components (4) are evenly distributed in the circumference on the inner wall of the vibrating ring (3). The vibration is transmitted to the powdery material by dynamically striking the outer wall of the displacement device (2) through the vibrating components (4).

2. The tubular conveying mechanism for powdered materials with vibration function according to claim 1, characterized in that, The vibration assembly (4) includes a vibration plate (41), a transmission assembly and a drive assembly. The vibration plate (41) is disposed between the inner wall of the vibration ring (3) and the outer wall of the conveying pipe (1). The vibration ring (3) has an active cavity (11) for accommodating the transmission assembly and the drive assembly. The input end of the transmission assembly is connected to the output end of the drive assembly. The output end of the transmission assembly extends to the inner ring of the vibration ring (3) and is fixed to the vibration plate (41). The drive assembly drives the transmission assembly to drive the vibration plate (41) to reciprocate radially and dynamically strike the outer wall of the conveying pipe (1).

3. The tubular conveying mechanism for powdered materials with vibration function according to claim 2, characterized in that, The transmission assembly includes a movable rod (42), one end of which is located in the movable cavity (11) and is fitted with a transmission block (43) connected to the output end of the drive assembly. The other end of the movable rod (42) extends radially to the inner ring of the vibration ring (3) and is fixed to the vibration plate (41). A telescopic spring (44) is fitted on the movable rod (42) and fixed between the vibration plate (41) and the vibration ring (3). The drive assembly drives the transmission block (43) to reciprocate radially.

4. A tubular conveying mechanism for powdered materials with vibration function according to claim 3, characterized in that, The drive assembly includes an electric motor (45) and a cam (46). The electric motor (45) is mounted on the side wall of the movable cavity (11), and the axis of the electric motor (45) is perpendicular to the axis of the movable rod (42). The cam (46) is mounted on the output end of the electric motor (45), and the edge of the cam (46) abuts against the transmission block (43).

5. A tubular conveying mechanism for powdered materials with vibration function according to claim 4, characterized in that, The end of the transmission block (43) near the cam (46) is spherical.

6. A tubular conveying mechanism for powdered materials with vibration function according to claim 4, characterized in that, The outer periphery of the cam (46) has multiple protrusions, which are evenly distributed circumferentially and abut against the transmission block (43) in sequence as driven by the electric motor (45).

7. A tubular conveying mechanism for powdered materials with vibration function according to claim 2, characterized in that, The vibrating plate (41) is arc-shaped and its inner arc surface is opposite to the conveying pipe (1). Multiple steel balls (47) are evenly distributed on the inner arc surface of the vibrating plate (41), and the steel balls (47) are in contact with the outer wall of the conveying pipe (1).

8. A tubular conveying mechanism for powdered materials with vibration function according to any one of claims 1-7, characterized in that, It also includes a base (5), a conveying pipe (1) is inclined above the base (5), the lower end of the conveying pipe (1) is fixed to one side of the upper end of the base (5) by a spring connecting seat (7), and the upper end of the conveying pipe (1) is fixed to the pad (6) on the other side of the upper end of the base (5) by another spring connecting seat (7).

9. A tubular conveying mechanism for powdered materials with vibration function according to claim 8, characterized in that, The spring connecting seat (7) includes a seat support fixed to the lower surface of the upper and lower ends of the conveying pipe (1), and the bottom of the seat support is fixed to the upper surface of the pad (6) or the base (5) by a compression spring.

10. A tubular conveying mechanism for powdered materials with vibration function according to claim 8, characterized in that, The upper end of the base (5) is also equipped with a bracket (8) set around the conveying pipe (1). The upper end of the bracket (8) is equipped with a top plate (9). The displacement device (2) is a linear module and is installed on the lower end of the top plate (9). The slider end of the displacement device (2) faces downward and its movement path is parallel to the axis of the conveying pipe (1). The upper end of the vibration ring (3) is fixedly connected to the slider end of the displacement device (2) through a connecting block (10).

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