A fresh cut centrifugal dehydrator

Abstract

The present invention relates to a centrifugal dehydrator for fresh-cut vegetables; the technical solution it solves includes a gantry, in which a first cylinder with a vertical axis is rotatably installed. A filter cylinder is coaxially and spaced inside the first cylinder. The upper and lower ends of the annular cavity formed by the first cylinder and the filter cylinder are closed. A drain pipe is provided at the lower end of the annular cavity. A circular baffle is coaxially provided at the bottom of the filter cylinder. A plurality of radial partitions are circumferentially and evenly distributed on the inner side wall of the filter cylinder. The partitions are fixedly connected to the baffle and the inner ends of the partitions extend to the inner side of the baffle. A second cylinder with a closed upper end and an open lower end is coaxially installed inside the filter cylinder. The second cylinder is slidably and fittingly installed with the annular baffle. A plurality of through slots corresponding to the baffle one by one are evenly distributed at intervals on the side wall of the second cylinder. The partitions are placed in the corresponding through slots. An electric cylinder is coaxially fixed at the upper end of the second cylinder. The electric cylinder is rotatably installed on the gantry, and a motor for driving the electric cylinder to rotate is fixed on the gantry.

Description

Technical Field

[0001] The present invention relates to the field of ready-to-eat vegetable processing, and particularly to a centrifugal dehydrator for ready-to-eat vegetables. Background Art

[0002] With the continuous improvement of residents' living standards and the accelerating pace of life, ready-to-eat vegetables are increasingly recognized by consumers compared to traditional raw vegetables. So-called raw vegetables are vegetables that have been picked but not otherwise processed. Raw vegetables can be transported to all parts of the country through the logistics system after being picked from the production area. Raw vegetables themselves contain some inedible parts, such as the skins and roots of vegetables. Such vegetable leftovers are treated as kitchen waste after entering the kitchen. Moreover, traditional raw vegetables lack preservation means, resulting in a high transportation loss rate of vegetables, and the freshness of vegetables is greatly reduced when they reach consumers. In contrast to raw vegetables, ready-to-eat vegetables refer to fresh vegetables that have been selected, trimmed, cleaned, cut, and packaged, etc. The edible rate of ready-to-eat vegetables is close to 100%, and they can meet the hygienic requirements for direct cooking and raw consumption, with characteristics such as freshness, convenience, hygiene, and nutrition. To the greatest extent, it facilitates consumers' purchase and consumption, meeting consumers' needs for the freshness, safety, nutrition, and hygiene of vegetables. Since ready-to-eat vegetables directly cut off and recycle the inedible parts at the production area, the utilization rate of vegetables can be further increased.

[0003] Before packaging, it is necessary to remove the moisture on the surface of ready-to-eat vegetables. At present, there are two methods for dehydrating ready-to-eat vegetables. One is air blower dehydration. Taking the intelligent ready-to-eat vegetable processing system with the application number 202011556425.2 and the patent name as an example, the air blower dehydration mentioned therein is to place the vegetables to be dehydrated on a conveyor belt and pass through multiple air blowers in sequence. By the high-speed air flow provided by the air blowers, the air flow velocity on the surface of the ready-to-eat vegetables is accelerated to achieve the dehydration method. Air blower dehydration can effectively dry the upper surface of the ready-to-eat vegetables, but the dehydration effect of the contact end surface between the lower end of the ready-to-eat vegetables and the conveyor belt is poor. Since the single mass of the ready-to-eat vegetables is small after being cut, the power of the air blower for air blower dehydration cannot be too large, which results in problems such as poor actual dehydration effect and low efficiency in air blower dehydration.

[0004] Another way is to dehydrate through a centrifuge. Taking the application number: 201410203920.3, and the patent name: A Processing and Preservation Technology for Fresh-cut Lycium barbarum Buds as an example, it mentions pouring the fresh-cut vegetables into the centrifuge and achieving centrifugal dehydration through the high-speed rotating centrifuge. However, since the purpose of dehydrating the fresh-cut vegetables is to remove the attached water on the surface, the rotating speed of the centrifuge drum should not be too fast. If the speed is too fast, it will cause the vegetables to break and the internal water to be lost. The low-speed centrifugal motion causes the vegetables poured into the centrifuge to gather at the bottom of the centrifuge. During the low-speed rotation of the centrifuge, the fresh-cut vegetables still gather at the bottom of the drum, and the material accumulates too thickly, making it difficult to quickly achieve the dehydration operation. Therefore, to effectively improve the centrifugal dehydration efficiency of the fresh-cut vegetables, this application provides a new centrifuge to solve the problem of low efficiency during the dehydration of fresh-cut vegetables. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, the present invention provides a fresh-cut vegetable centrifuge, which effectively solves the existing --- problem.

[0006] The technical solution for solving the problem includes a gantry. A first cylinder with a vertical axis is rotatably installed inside the gantry. A filter cylinder is coaxially and spaced inside the first cylinder. The upper and lower ends of the annular cavity formed by the first cylinder and the filter cylinder are closed. A drain pipe is provided at the lower end of the annular cavity. A ring-shaped baffle is coaxially provided at the bottom of the filter cylinder. A plurality of radial partitions are circumferentially and evenly distributed on the inner side wall of the filter cylinder. The partitions are fixedly connected to the baffle and the inner ends of the partitions extend to the inner side of the baffle. A second cylinder with a closed upper end and an open lower end is coaxially installed inside the filter cylinder. The second cylinder is slidably and fittingly installed with the annular baffle. A plurality of through grooves corresponding to the baffle one by one are spaced and evenly distributed on the side wall of the second cylinder. The partitions are placed in the corresponding through grooves. An electric cylinder is coaxially fixed at the upper end of the second cylinder. The electric cylinder is rotatably installed on the gantry. A motor for driving the electric cylinder to rotate is fixed on the gantry.

[0007] Preferably, a workbench is provided below the gantry. The gantry is fixed on the workbench. A bearing seat is installed on the side wall of the gantry. The first cylinder is rotatably installed with the gantry through a bearing. The electric cylinder is rotatably installed at the upper end of the gantry. The motor is fixed on the gantry. A through hole coaxial with the first cylinder is provided on the tabletop of the workbench. The diameter of the through hole is larger than that of the second cylinder. A bracket is provided below the workbench, and a material box is placed on the bracket.

[0008] Preferably, the baffle is a ring-shaped structure with a thick outer end and a thin inner end and a trapezoidal cross-section. The partition has a wedge surface at the lower end surface that matches the baffle. The baffle plugs the holes at the lower end of the filter cylinder to form a water storage space at the lower end of the ring.

[0009] Preferably, a valve is provided on the drain pipe.

[0010] Preferably, a first gear is coaxially mounted on the electric cylinder, and a second gear meshing with the first gear is coaxially mounted on the output shaft of the motor.

[0011] Preferably, the upper bottom of the second cylinder is in the shape of a frustum of a cone with a smaller upper part and a larger lower part. The lower large circle of the frustum is the bottom of the second cylinder, and the through groove penetrates through the side wall and the bottom of the second cylinder.

[0012] When the device is centrifugally dehydrating fresh-cut vegetables, considering that the centrifugal rotation is relatively low and the materials are likely to accumulate at the bottom of the filter cylinder, resulting in low dehydration efficiency and poor effect of the accumulated materials. Therefore, by uniformly moving the second filter cylinder during filling, the external materials are evenly collected into the material receiving chamber, and finally the materials exist in the filter cylinder in the state of a thick-walled cylinder. Coupled with the low-speed centrifugal rotation, the dehydration of the materials can be easily achieved, thereby improving the dehydration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the present invention in the feeding state.

[0014] Figure 2 It is the front view of the present invention in the discharging state.

[0015] Figure 3 It is the top view of the present invention.

[0016] Figure 4 It is the three-dimensional structure schematic diagram of the second cylinder of the present invention.

[0017] Figure 5 It is the three-dimensional structure schematic diagram of the filter cylinder and the first cylinder of the present invention.

[0018] Figure 6 It is the three-dimensional structure schematic diagram of the cooperation of the first cylinder, the filter cylinder and the second cylinder of the present invention.

[0019] Figure 7 It is the three-dimensional sectional structure schematic diagram of the first cylinder and the filter cylinder of the present invention. EMBODIMENTS

[0020] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0021] By Figures 1 to 7It can be known that the present invention includes a gantry 1. A first cylinder 2 with a vertical axis is rotatably installed inside the gantry 1. A filter cylinder 3 is coaxially and spaced inside the first cylinder 2. The upper and lower ends of the annular cavity formed by the first cylinder 2 and the filter cylinder 3 are closed. A drain pipe 4 is provided at the lower end of the annular cavity. An annular baffle 5 is coaxially provided at the bottom of the filter cylinder 3. A plurality of radial partitions 6 are circumferentially distributed on the inner side wall of the filter cylinder 3. The partitions 6 are fixedly connected to the baffle 5 and the inner ends of the partitions 6 extend to the inner side of the baffle 5. A second cylinder 7 with a closed upper end and an open lower end is coaxially installed inside the filter cylinder 3. The second cylinder 7 is slidably and fittingly installed with the annular baffle 5. A plurality of through slots 8 corresponding to the baffle 5 one by one are evenly spaced on the side wall of the second cylinder 7. The partitions 6 are placed in the corresponding through slots 8. An electric cylinder 9 is coaxially fixed at the upper end of the second cylinder 7. The electric cylinder 9 is rotatably installed on the gantry 1. A motor for driving the electric cylinder 9 to rotate is fixed on the gantry 1.

[0022] To facilitate the installation of the gantry 1, a workbench 10 is provided below the gantry 1. The gantry 1 is fixed on the workbench 10. A bearing seat is installed on the side wall of the gantry 1. The first cylinder 2 is rotatably installed with the gantry 1 through a bearing. The electric cylinder 9 is rotatably installed at the upper end of the gantry 1. The motor is fixed on the gantry 1. A through hole coaxial with the first cylinder 2 is provided on the tabletop of the workbench 10. The diameter of the through hole is larger than that of the second cylinder 7. A bracket 11 is provided below the workbench 10. A material box 12 is placed on the bracket 11.

[0023] To facilitate discharging and storing water for discharging, the baffle 5 is an annular structure with a thick outer end and a thin inner end and a trapezoidal cross-section. The partition 6 has a wedge surface at the lower end surface that cooperates with the baffle 5. The baffle 5 seals the holes at the lower end of the filter cylinder 3 to form a water storage space at the lower end of the annulus.

[0024] To achieve intermittent drainage of the drain pipe 4, a valve is provided on the drain pipe 4.

[0025] To achieve the driving of the electric cylinder 9 by the motor, a first gear 13 is coaxially installed on the electric cylinder 9. A second gear 14 meshing with the first gear 13 is coaxially installed on the output shaft of the motor.

[0026] To achieve better material guiding, the upper end bottom of the second cylinder 7 is in the shape of a frustum of a cone with a smaller upper part and a larger lower part. The lower large circle of the frustum is the bottom of the second cylinder 7. The through slot 8 penetrates the side wall and the bottom of the second cylinder 7.

[0027] When specifically using this device:

[0028] In the first step, prepare the filling material. By controlling the electric cylinder 9 to extend, the second cylinder 7 moves downward along the filter cylinder 3 until the bottom of the second cylinder 7 is placed above and close to the baffle 5. At this time, close the valve of the drain pipe 4.

[0029] The second step is to fill the material. Fill the material through the opening at the upper end of the filter cartridge 3, and drive the electric cylinder 9 to move upward at a constant speed during the filling process. During this process, the material entering the filter cartridge 3 is dispersed into the filter cartridge 3 under the guiding action of the bottom of the frustum-shaped second cylinder 7. When the second cylinder 7 moves upward under the driving action of the electric cylinder 9, a material-containing chamber will be formed by the cylinder wall of the second cylinder 7, the partition plate 6 and the filter cartridge 3. This chamber is a chamber with a sector-shaped horizontal cross-section and a relatively small chamber thickness. With the continuous driving of the electric cylinder 9, until all the materials are dispersed into the material-containing chamber, at this time the material is dispersed into a thick-walled cylindrical shape, and the cylinder does not separate from the baffle 5;

[0030] The third step is centrifugal dehydration. At this time, the electric cylinder 9 stops telescoping, and under the drive of the motor, the electric cylinder 9 rotates through the meshing transmission of the second gear 14 and the first gear 13. It should be noted that the extended end of the electric cylinder 9 and the cylinder body cannot rotate relative to each other. The rotation of the electric cylinder 9 drives the second cylinder 7 to rotate. The rotation of the second cylinder 7 drives the filter cartridge 3 and the first cylinder 2 to rotate through the along-river of the through groove 8 and the partition plate 6. At this time, the material in the shape of a thick-walled cylinder will remove the water on its surface under the action of centrifugal force and store it in the annular cavity;

[0031] The fourth step is to discharge the material. After the dehydration is completed and the motor stops rotating, the water in the annular cavity will gather in the water storage space at the bottom of the annular cavity, be collected through the water discharge valve and the receiving bucket. By driving the electric cylinder 9 to retract again, the second cylinder 7 continues to move upward. During this process, the lower end of the side wall of the second cylinder 7 is gradually placed above the baffle 5. At this time, the lower end of the material-containing chamber is opened. Under the action of gravity and the guiding action of the inclined surface of the baffle 5, the material falls freely and falls into the material frame 12 in the bracket 11 through the through hole on the surface of the workbench 10 for collection and transfer;

[0032] The fifth step is to reset. After the material is tilted, drive the electric cylinder 9 to reset and extend until it returns to the state of the first step, and then the material can be filled again. Repeating the above actions can realize the rapid dehydration and drying of the fresh-cut vegetable materials.

[0033] Advantage 1 of this device: When centrifugally dehydrating fresh-cut vegetables, this device takes into account that the centrifugal rotation is relatively low, and the materials are easy to accumulate at the bottom of the filter cartridge 3, resulting in low dehydration efficiency and poor effect of the accumulated materials. Therefore, by moving the second filter cartridge 3 at a constant speed during filling, the external materials are evenly collected into the material-containing chamber, and finally the materials exist in the filter cartridge 3 in the state of a thick-walled cylinder. Coupled with low-speed centrifugal rotation, the dehydration of the materials can be easily realized, thus improving the dehydration efficiency.

[0034] Advantage 2 of this device: The filter cartridge 3 of this device uses the method of feeding from the upper end and discharging from the lower end. Compared with the traditional dumping-type filter cartridge 3, this centrifugal dehydrator is more convenient and efficient in use.

[0035] Advantage 3 of this device: This device adopts upper drive, homogeneous discharging of the materials in the second cylinder 7 and transmission drive, making the structure of this device more compact and efficient, and the production, use and maintenance costs of the device are relatively low, which is conducive to large-scale production promotion and application.

Claims

1. A fresh-cut centrifugal dehydrator, comprising a gantry (1), characterized in that, A first cylinder (2) with a vertical axis is rotatably installed inside the gantry (1). A filter cylinder (3) is coaxially and spaced inside the first cylinder (2). The upper and lower ends of the annular cavity formed by the first cylinder (2) and the filter cylinder (3) are closed. A drain pipe (4) is provided at the lower end of the annular cavity. An annular baffle (5) is coaxially provided at the bottom of the filter cylinder (3). A plurality of radial partitions (6) are circumferentially and evenly distributed on the inner side wall of the filter cylinder (3). The partitions (6) are fixedly connected to the baffle (5) and the inner ends of the partitions (6) extend to the inner side of the baffle (5). A second cylinder (7) with a closed upper end and an open lower end is coaxially installed inside the filter cylinder (3). The second cylinder (7) is slidably and fittingly installed with the annular baffle (5). A plurality of through grooves (8) corresponding to the baffle (5) one by one are evenly spaced on the side wall of the second cylinder (7). The partitions (6) are placed in the corresponding through grooves (8). An electric cylinder (9) is coaxially fixed to the upper end of the second cylinder (7). The electric cylinder (9) is rotatably installed on the gantry (1). A motor for driving the electric cylinder (9) to rotate is fixed on the gantry (1). Filling is carried out through the opening at the upper end of the filter cylinder (3), and the electric cylinder (9) is driven to move upward at a constant speed during the filling process. During this process, the material entering the filter cylinder (3) is evenly dispersed in the filter cylinder (3) under the guiding action of the bottom of the second cylinder (7). The motor drives the electric cylinder (9) to rotate, and the electric cylinder (9) drives the filter cylinder (3) to rotate for centrifugal dehydration. After dehydration is completed, the electric cylinder (9) retracts to enable the second cylinder (7) to continuously move upward, and the lower end of the material storage chamber is opened to discharge the material.

2. The fresh-cut centrifugal dehydrator according to claim 1, characterized in that, A workbench (10) is provided below the gantry (1). The gantry (1) is fixed on the workbench (10). A bearing seat is installed on the side wall of the gantry (1). The first cylinder (2) and the gantry (1) are rotatably installed through bearings. The electric cylinder (9) is rotatably installed at the upper end of the gantry (1). The motor is fixed on the gantry (1). A through hole coaxial with the first cylinder (2) is provided on the tabletop of the workbench (10). The diameter of the through hole is larger than that of the second cylinder (7). A bracket (11) is provided below the workbench (10). A material box (12) is placed on the bracket (11).

3. The centrifugal dehydrator for fresh-cut vegetables according to claim 1, wherein, The baffle (5) is an annular structure with a trapezoidal cross-section that is thick at the outer end and thin at the inner end. The partition (6) has a wedge surface at the lower end surface that fits with the baffle (5). The baffle (5) seals the holes at the lower end of the filter cylinder (3) to form a water storage space at the annular lower end.

4. A fresh cut centrifugal dehydrator according to claim 1, wherein, A valve is provided on the drain pipe (4).

5. The centrifugal dehydrator for fresh-cut vegetables according to claim 1, characterized in that, A first gear (13) is coaxially installed on the electric cylinder (9). A second gear (14) meshing with the first gear (13) is coaxially installed on the output shaft of the motor.

6. The centrifugal dehydrator for fresh-cut vegetables according to claim 1, characterized in that, The bottom of the upper end of the second cylinder (7) is in the shape of a frustum of a cone with a smaller upper part and a larger lower part. The lower large circle of the frustum is the bottom of the second cylinder (7). The through groove (8) penetrates the side wall and the bottom of the second cylinder (7).

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