Fractional centrifugation draining mechanism

Abstract

This invention discloses a graded centrifugal draining mechanism, comprising multiple roller assemblies. Each roller assembly includes a rotating ring, a swing rod, and an elastic permeable mesh. One end of the swing rod is hinged to the rotating ring. When the rotating ring is stationary, the elastic permeable mesh and the swing rod are positioned at 90° to the radial direction of the rotating ring. When the rotating ring rotates, the centrifugal force on the swing rod and the elastic permeable mesh is greater than the elastic restoring force of the elastic permeable mesh. One end of the swing rod moves away from the center of the rotating ring, causing the elastic permeable mesh to unfold into a flared shape. The beneficial effect of this invention is that, through the combined action of centrifugal force and the elastic permeable mesh, when the rotating ring rotates at high speed, the elastic permeable mesh automatically unfolds into a flared shape, and its sidewall converts part of the centrifugal force into a horizontal component force. This component force can automatically drive the material to move continuously along the mesh wall in the horizontal direction, realizing the automatic transfer of material from the inlet to the outlet during the dewatering process.

Description

Technical Field

[0001] This invention relates to the field of centrifugal draining technology, and more specifically, to a graded centrifugal draining mechanism. Background Technology

[0002] In the field of frozen food processing, especially after blanching leafy vegetables, the surface of the materials often carries a lot of moisture, requiring efficient dehydration and draining to ensure the smooth progress of subsequent processes and the final quality of the product. In the prior art, for example, Chinese patent application number CN202520541749.0 discloses a centrifugal dehydration mechanism; this solution adopts an intermittent working mode, and after each dehydration is completed, manual or auxiliary mechanisms are required to load and unload the material, resulting in poor process continuity and low processing efficiency, making it difficult to meet the needs of large-scale continuous production.

[0003] On the other hand, some existing drying equipment uses a dual-conveyor-belt extrusion dehydration method; specifically, vegetables are physically squeezed by two conveyor belts at a certain angle to achieve forced drainage. Although this method can achieve continuous operation, mechanical extrusion can easily cause irreversible damage to the leaves and root tissues of vegetables, ruining the product's appearance and affecting its final commercial value. Summary of the Invention

[0004] To address the above deficiencies, this invention provides a graded centrifugal draining mechanism to solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The grading centrifugal draining mechanism includes a base, a conveyor belt, and materials, and also includes: Multiple roller assemblies, each roller assembly including a rotating ring, a swing rod, and an elastic permeable mesh; one end of the swing rod is hinged to the rotating ring, and the swing rod can rotate along the hinge point; When the rotating ring is stationary, under the elastic action of the elastic permeable net itself, the elastic permeable net and the swing rod are set at 90° with the radial direction of the rotating ring, and the elastic permeable net is cylindrical. When the rotating ring rotates, the centrifugal force on the swing rod and the elastic permeable net is greater than the elastic restoring force of the elastic permeable net. One end of the swing rod moves away from the center of the rotating ring, causing the elastic permeable net to unfold into an flared shape. At this time, the side wall angle of the elastic permeable net is inclined to the direction of the centrifugal force. When the material is inside the flared elastic permeable net, part of the centrifugal force is converted into a horizontal component force. This horizontal component force drives the material to move horizontally along the side wall of the elastic permeable net, while simultaneously centrifugally dehydrating it. In adjacent roller assemblies, the latter roller assembly is used to limit the swing angle of the swing arm in the former roller assembly.

[0006] Furthermore, an isolation ring is installed between the swing rod in the preceding roller assembly and the rotating ring in the following roller assembly. The isolation ring has a Z-shaped cross-section and is in a compressible state in the radial direction. An elastic plate is installed on the side wall of the isolation ring to maintain the rotational rigidity of the isolation ring.

[0007] Furthermore, the roller assembly consists of three rollers: a first roller, a second roller, and a third roller; the diameter of the third roller is larger than that of the second roller, which is larger than that of the first roller.

[0008] Furthermore, it includes a transmission mechanism, which includes a pulley mounted on one side of the rotating ring on the first roller, a drive motor mounted on the base, a transmission belt mounted on the output end of the drive motor, one end of the transmission belt being connected to the output end of the drive motor, and the other end being connected to the pulley. The first roller, the second roller, and the third roller transmit rotational power through an isolation ring.

[0009] Furthermore, a support frame is installed on the base, and multiple support frames are provided. Each support frame corresponds to a roller assembly. A first bearing is installed on the support frame. The outer ring of the first bearing is fixedly connected to the support frame, and the inner ring of the first bearing is fixedly connected to the rotating ring.

[0010] Furthermore, it includes a buffer assembly, which includes a first compression spring installed on one side of the base, a buffer box installed on the upper end of the first compression spring, a discharge port at the lower end of the buffer box, a vibration motor installed on the side wall of the buffer box, a second compression spring installed on the inner wall of the buffer box, the second compression spring being arranged in a ring, the second compression spring avoiding the discharge port, and a buffer cotton installed on the extension end of the second compression spring. A waterproof cover is installed on the base.

[0011] A buffer assembly consisting of compression springs, a vibration motor, and buffer cotton is specially installed at the discharge end. The material thrown out from the high-speed rotating drum first contacts the buffer cotton, and after being buffered and decelerated twice by the first and second compression springs, and with the micro-vibration assistance of the vibration motor, it can smoothly and quickly slide down to the discharge port, avoiding secondary impact damage or accumulation and blockage caused by the high-speed fall of the material.

[0012] Furthermore, the elastic permeable net is made of elastic mesh or elastic porous material and maintains a cylindrical shape in its natural state.

[0013] Furthermore, multiple swing rods are evenly distributed along the circumference of the rotating ring, and each swing rod is fixedly connected to the edge of the elastic permeable net.

[0014] Furthermore, the inner diameter of the rotating ring of the rear roller assembly is larger than the maximum outer diameter of the elastic permeable mesh of the front roller assembly in the flared state, so as to achieve the connection and mechanically limit the swing angle of the swing rod.

[0015] The beneficial effects of this invention are as follows: through the combined action of centrifugal force and elastic permeable net, when the rotating ring rotates at high speed, the elastic permeable net automatically unfolds into an flared shape, and its sidewalls convert part of the centrifugal force into a horizontal component force; this component force can automatically drive the material to move continuously along the net wall in the horizontal direction, realizing the automatic transfer of material from the inlet to the outlet during the dewatering process; the entire process does not require additional conveying devices or intermittent operation, and can be directly connected to the upstream conveyor belt to form a continuous production line from feeding, dewatering to discharging, which greatly improves the dewatering efficiency; By setting up multiple (e.g., three) roller assemblies with increasing diameters, the material passes through the first, second, and third rollers in sequence. Since the rotation radius of each subsequent roller is larger, it can generate stronger centrifugal force at the same speed, so that the dehydration effect on the material is gradually enhanced. This staged design avoids material splashing or damage caused by excessive initial centrifugal force, and ensures that the final output material has a low moisture content, with uniform and thorough dehydration. The flaring angle (i.e., the sidewall inclination angle) of the elastic permeable mesh is positively correlated with the rotation speed of the rotating ring. By adjusting the speed of the drive motor, the balance point between centrifugal force and elastic restoring force can be precisely controlled, thereby changing the flaring angle. The larger the flaring angle, the stronger the horizontal component force, the faster the material moves, the shorter the residence time in the drum, and the lower the degree of dehydration. Conversely, the residence time is extended, and the dehydration is more thorough. Operators can flexibly adjust the process parameters according to the pressure resistance and target moisture content of different materials (such as leafy vegetables, root vegetables, bean products, etc.). Unlike existing technologies that use rigid extrusion or conveyor belt extrusion, the core dehydration component of this invention is an elastic permeable mesh. Under centrifugal force, the material only comes into contact with the elastic mesh or elastic porous material, without hard extrusion or shearing, which can effectively avoid mechanical damage such as broken vegetable leaves and broken stems. It is especially suitable for quick-frozen vegetables, diced fruits, pastries and other products with high requirements for shape, which significantly improves the yield and appearance quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the graded centrifugal draining mechanism described in this invention; Figure 2 This is a schematic diagram of the longitudinal section of the graded centrifugal draining mechanism; Figure 3 yes Figure 1 Enlarged view of point A in the middle; Figure 4 yes Figure 3 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the state of an elastic permeable net; Figure 6 yes Figure 5 A schematic diagram of the longitudinal section of the elastic permeable mesh in the image; In the diagram: 1. Base; 2. Conveyor belt; 3. Material; 4. Rotating ring; 5. Swinging rod; 6. Elastic permeable net; 21. Isolation ring; 22. Elastic plate; 31. First roller; 32. Second roller; 33. Third roller; 41. Pulley; 42. Drive motor; 43. Transmission belt; 51. Support frame; 52. First bearing; 61. First compression spring; 62. Buffer box; 63. Discharge port; 64. Vibration motor; 65. Second compression spring; 66. Buffer cotton; 67. Waterproof cover. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] This application provides a graded centrifugal draining mechanism; please refer to [reference needed]. Figures 1-6 Includes base 1, conveyor belt 2, and material 3, and also includes: Multiple roller assemblies, each roller assembly including a rotating ring 4, a swing rod 5 and an elastic permeable net 6; one end of the swing rod 5 is hinged to the rotating ring 4, and the swing rod 5 can rotate along the hinge point; When the rotating ring 4 is stationary, under the elastic action of the elastic permeable net 6 itself, the elastic permeable net 6 and the swing rod 5 are set at 90° with the radial direction of the rotating ring 4, and the elastic permeable net 6 is cylindrical. When the rotating ring 4 rotates, the centrifugal force on the swing rod 5 and the elastic permeable net 6 is greater than the elastic restoring force of the elastic permeable net 6. One end of the swing rod 5 moves away from the center of the rotating ring 4, causing the elastic permeable net 6 to unfold into an flared shape. At this time, the side wall angle of the elastic permeable net 6 is inclined to the direction of the centrifugal force. When material 3 is located inside the flared elastic permeable net 6, a portion of the centrifugal force is converted into a horizontal component force. This horizontal component force drives material 3 to move horizontally along the side wall of the elastic permeable net 6, while simultaneously performing centrifugal dehydration. In adjacent roller assemblies, the latter roller assembly is used to limit the swing angle of the swing arm 5 in the former roller assembly.

[0019] In practical applications, the conveyor belt 2 is existing technology, which transports material 3 from the outside to the drum assembly. The drive motor 42 can indirectly drive the drum assembly to rotate. When material 3 enters the drum assembly, the rotation of the drum assembly generates centrifugal force, which can quickly drain the material 3. When the rotation speed of the rotating ring 4 is greater than a certain critical value, the centrifugal force on the swing rod 5 and the elastic permeable net 6 is greater than the elastic restoring force of the elastic permeable net 6. One end of the swing rod 5 moves away from the center of the rotating ring 4, causing the elastic permeable net 6 to unfold into an flared shape. At this time, the side wall angle of the elastic permeable net 6 is inclined to the direction of the centrifugal force. While the elastic permeable net 6 is draining water, the centrifugal force is converted into a horizontal component force. This horizontal component force drives the material 3 to move horizontally along the side wall of the elastic permeable net 6. The material 3 moves until it leaves the roller assembly. By controlling the rotation speed of the roller assembly, the tilt angle of the elastic permeable net 6 can be controlled, thereby controlling the speed at which the material 3 leaves the elastic permeable net 6. The above process can continue; By setting the swing angle of the swing rod 5 in the previous roller assembly to the subsequent roller assembly, multiple roller assemblies can be set to improve the centrifugal draining effect.

[0020] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 An isolation ring 21 is installed between the swing rod 5 in the preceding roller assembly and the rotating ring 4 in the following roller assembly. The isolation ring 21 has a Z-shaped cross section and is in a compressible state in the radial direction. An elastic plate 22 is installed on the side wall of the isolation ring 21 to maintain the rotational rigidity of the isolation ring 21.

[0021] In practical applications, the isolation ring 21 ensures that the adjacent roller assemblies are in a relatively sealed state, preventing the material 3 from falling through the gap between the adjacent roller assemblies. At the same time, the isolation ring 21 can transmit power between the adjacent roller assemblies. The previous roller assembly drives the next roller assembly to rotate through the isolation ring 21. The elastic plate 22 maintains the rotational rigidity of the isolation ring 21 and improves the transmission effect. The inner ring of the elastic plate 22 can also be contracted to provide ample space for the swing rod 5 and the elastic permeable net 6 to expand and swing.

[0022] Reference Figure 2 The roller assembly consists of three rollers: a first roller 31, a second roller 32, and a third roller 33. The diameter of the third roller 33 is greater than that of the second roller 32, which is greater than that of the first roller 31.

[0023] In practical applications, this embodiment uses three roller assemblies, such as... Figure 2 As shown, from left to right, there are a first roller 31, a second roller 32, and a third roller 33. The third roller 33 is configured such that its diameter is greater than that of the second roller 32, which is greater than that of the first roller 31, so that the adjacent roller assemblies are in a nested state.

[0024] Reference Figure 1 , Figure 2 and Figure 3The transmission mechanism includes a pulley 41 mounted on one side of the rotating ring 4 on the first roller 31, a drive motor 42 mounted on the base 1, and a transmission belt 43 mounted on the output end of the drive motor 42. One end of the transmission belt 43 is connected to the output end of the drive motor 42, and the other end is connected to the pulley 41. The first roller 31, the second roller 32, and the third roller 33 transmit rotational power through an isolation ring 21.

[0025] In practical applications, when the drive motor 42 rotates, it drives the pulley 41 and the first roller 31 to rotate through the transmission belt 43. The first roller 31, the second roller 32 and the third roller 33 transmit rotational power through the isolation ring 21. At the same speed, the centrifugal force generated by the third roller 33 is greater than that of the second roller 32 and the first roller 31, so that the centrifugal force on the material 3 gradually increases.

[0026] Reference Figure 2 , Figure 3 and Figure 4 A support frame 51 is installed on the base 1. There are multiple support frames 51, each of which corresponds to a roller assembly. A first bearing 52 is installed on the support frame 51. The outer ring of the first bearing 52 is fixedly connected to the support frame 51, and the inner ring of the first bearing 52 is fixedly connected to the rotating ring 4.

[0027] In practical applications, the support frame 51 and the first bearing 52 enable the roller assembly to rotate stably.

[0028] Reference Figure 1 and Figure 2 The system includes a buffer assembly, which includes a first compression spring 61 installed on one side of the base 1. A buffer housing 62 is installed on the upper end of the first compression spring 61. A discharge port 63 is provided at the lower end of the buffer housing 62. A vibration motor 64 is provided on the side wall of the buffer housing 62. A second compression spring 65 is provided on the inner wall of the buffer housing 62. The second compression spring 65 is arranged in a ring and avoids the position of the discharge port 63. A buffer cotton 66 is provided at the extension end of the second compression spring 65. A waterproof cover 67 is installed on the base 1.

[0029] In practical applications, when material 3 is discharged from the roller assembly, material 3 comes into contact with the buffer cotton 66 for the first buffering. Then, the second compression spring 65 contracts to buffer material 3 for the second time. The operation of the vibration motor 64 causes the buffer box 62 and the buffer cotton 66 to vibrate, causing material 3 to slide down quickly. The waterproof cover 67 prevents water from splashing.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The elastic permeable net 6 is made of elastic mesh or elastic porous material and maintains a cylindrical shape in its natural state.

[0031] In practical applications, the material of the elastic permeable net 6 is selected according to actual needs, and it maintains a cylindrical shape in its natural state.

[0032] Reference Figures 1 to 6 Multiple swing rods 5 are evenly distributed along the circumference of the rotating ring 4, and each swing rod 5 is fixedly connected to the edge of the elastic permeable net 6.

[0033] In practical applications, by distributing the swing rods 5 in detail, the swing rods 5 can effectively fix and support the elastic permeable net 6.

[0034] The inner diameter of the rotating ring 4 of the rear roller assembly is larger than the maximum outer diameter of the elastic permeable net 6 of the front roller assembly in the flared state, so as to realize the sleeve and mechanically limit the swing angle of the swing rod 5, which can prevent the elastic permeable net 6 from overturning. The limitation of the hinge structure of the swing rod 5 can prevent the swing rod 5 from deflecting too much inward.

Claims

1. A grading centrifugal draining mechanism, comprising a base (1), a conveyor belt (2), and materials (3), characterized in that, Also includes: Multiple roller assemblies, each roller assembly including a rotating ring (4), a swing rod (5) and an elastic permeable net (6); one end of the swing rod (5) is hinged to the rotating ring (4), and the swing rod (5) can rotate along the hinge point; When the rotating ring (4) is stationary, under the elastic action of the elastic permeable net (6), the elastic permeable net (6) and the swing rod (5) are set at 90° with the radial direction of the rotating ring (4), and the elastic permeable net (6) is cylindrical. When the rotating ring (4) rotates, the centrifugal force on the swing rod (5) and the elastic permeable net (6) is greater than the elastic restoring force of the elastic permeable net (6). One end of the swing rod (5) moves away from the center of the rotating ring (4), causing the elastic permeable net (6) to unfold into an flared shape. At this time, the side wall angle of the elastic permeable net (6) is inclined to the direction of the centrifugal force. When the material (3) is located in the flared elastic permeable net (6), part of the centrifugal force is converted into a horizontal component force. This horizontal component force drives the material (3) to move horizontally along the side wall of the elastic permeable net (6) while centrifugally dehydrating. In adjacent roller assemblies, the latter roller assembly is used to limit the swing angle of the swing arm (5) in the former roller assembly.

2. The graded centrifugal draining mechanism according to claim 1, characterized in that, An isolation ring (21) is installed between the swing rod (5) in the previous roller assembly and the rotating ring (4) in the next roller assembly. The isolation ring (21) has a Z-shaped cross section and is in a compressible state in the radial direction. An elastic plate (22) is installed on the side wall of the isolation ring (21) and the elastic plate (22) maintains the rotational rigidity of the isolation ring (21).

3. The graded centrifugal draining mechanism according to claim 2, characterized in that, The roller assembly has three parts, namely the first roller (31), the second roller (32), and the third roller (33); the diameter of the third roller (33) is larger than that of the second roller (32) and larger than that of the first roller (31).

4. The graded centrifugal draining mechanism according to claim 3, characterized in that, The transmission mechanism includes a pulley (41) mounted on one side of the rotating ring (4) on the first roller (31), a drive motor (42) mounted on the base (1), a transmission belt (43) mounted on the output end of the drive motor (42), one end of the transmission belt (43) being connected to the output end of the drive motor (42), and the other end being connected to the pulley (41). The first roller (31), the second roller (32) and the third roller (33) transmit rotational power through an isolation ring (21).

5. The graded centrifugal draining mechanism according to claim 4, characterized in that, A support frame (51) is installed on the base (1). There are multiple support frames (51), each support frame (51) corresponds to a roller assembly. A first bearing (52) is installed on the support frame (51). The outer ring of the first bearing (52) is fixedly connected to the support frame (51), and the inner ring of the first bearing (52) is fixedly connected to the rotating ring (4).

6. The graded centrifugal draining mechanism according to claim 5, characterized in that, The system includes a buffer assembly, which includes a first compression spring (61) installed on one side of the base (1), a buffer box (62) installed on the upper end of the first compression spring (61), a discharge port (63) provided at the lower end of the buffer box (62), a vibration motor (64) provided on the side wall of the buffer box (62), a second compression spring (65) provided on the inner wall of the buffer box (62), the second compression spring (65) being arranged in a ring, the second compression spring (65) avoiding the position of the discharge port (63), a buffer cotton (66) provided at the extension end of the second compression spring (65), and a waterproof cover (67) installed on the base (1).

7. The graded centrifugal draining mechanism according to claim 6, characterized in that, The elastic permeable net (6) is made of elastic mesh or elastic porous material and maintains a cylindrical shape in its natural state.

8. The graded centrifugal draining mechanism according to claim 6, characterized in that, Multiple swing rods (5) are evenly distributed along the circumference of the rotating ring (4), and each swing rod (5) is fixedly connected to the edge of the elastic permeable net (6).

9. The graded centrifugal draining mechanism according to claim 6, characterized in that, The inner diameter of the rotating ring (4) of the rear roller assembly is larger than the maximum outer diameter of the elastic permeable net (6) of the front roller assembly in the flared state, so as to realize the connection and mechanically limit the swing angle of the swing rod (5).

Images