Screw propelling conveyor for high viscosity sucrose esters

Abstract

The utility model discloses a kind of spiral propelling conveyors for high viscosity sucrose ester, including workbench and support frame, the top of workbench is provided with support frame, and the top of workbench of support frame side is provided with liquid storage tank, the top of support frame is provided with conveying pipe, and the inside of conveying pipe is provided with movable shaft, and movable shaft is movably connected with conveying pipe, the surface of movable shaft is provided with two groups of spiral blades, and the rotation direction of two groups of spiral blades is opposite, one end of conveying pipe is provided with second servo motor, and the output end of second servo motor is connected with movable shaft, the bottom of conveying pipe is symmetrically provided with connecting pipe. The utility model not only realizes the quantitative, controllable feeding of high viscosity sucrose ester, effectively avoids material accumulation and blockage in conveying pipe by material shifting plate structure, ensures the continuous stability of conveying process, facilitates simultaneously conveying material from two points, improves conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of conveyor technology, specifically to a screw conveyor for high-viscosity sucrose esters. Background Technology

[0002] Sucrose esters generally refer to fatty acid sucrose polyesters. Sucrose esters are high-performance nonionic surfactants, with the sucrose portion being a hydrophilic group and the long-chain fatty acid portion being a lipophilic group. The higher the monoester content, the more hydrophilic the ester. Sucrose esters exhibit good compatibility with drugs, resulting in rapid drug release. They can be used as emulsifiers for oral medications, cosolvents for vitamins A and D or other poorly soluble drugs, as well as binders or protective film materials for ointments, suppositories, and tablets, and suspending agents for vitamin K, thereby improving drug quality and processing performance. A screw conveyor is a machine that uses a motor to drive a screw to rotate, pushing materials to achieve the purpose of conveying. It can convey horizontally, inclined, or vertically, and has the advantages of simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance, and convenient closed transport. Screw conveyors are often used to convey sucrose esters. However, traditional screw conveyors are mostly unidirectional feed and unidirectional discharge, and can only convey in one direction. Moreover, the end position of the conveying port cannot be adjusted, which leads to insufficient flexibility in material conveying and reduces conveying efficiency. In order to convey sucrose esters more efficiently, a screw propulsion conveyor for high viscosity sucrose esters is proposed.

[0003] As disclosed in the authorization announcement number CN222960563U, a differential screw conveyor for conveying viscous materials includes a motor, an end plate connecting frame, a left end plate of the conveyor, a top cover of the conveyor, a conveyor housing, and a right end plate of the conveyor. The left end plate of the conveyor is fixedly installed at the front end of the conveyor housing, the right end plate of the conveyor is fixedly installed at the rear end of the conveyor housing, the top cover of the conveyor is fixedly installed on top of the conveyor housing, the end plate connecting frame is fixedly installed together with the left end plate of the conveyor, the motor is directly or indirectly installed together with the end plate connecting frame, the top of the top cover of the conveyor is provided with a feed inlet located in front of the top cover of the conveyor, the bottom of the conveyor housing is provided with a discharge port located at the rear of the conveyor housing, and a double-screw screw shaft and a single-screw screw shaft are provided inside the conveyor housing. The double-screw screw shaft and the single-screw screw shaft are arranged in parallel, and the double-screw screw shaft and the single-screw screw shaft are driven to rotate by a motor respectively. While this invention is suitable for conveying easily perishable, highly viscous, and moisture-containing lumpy materials, the double-ribbon spiral shaft and the single-ribbon spiral shaft mesh with each other via differential speed. The double ribbons have a cutting effect on the material, accelerating its conveying. The end of the conveying spiral shaft has a push-back check device to accelerate material outflow. This invention can also pass heated steam through the spiral shaft, transforming it into a drying conveying spiral, which provides a certain degree of drying for the material. The double-ribbon spiral shaft and the single-ribbon spiral shaft are controlled by gear transmission through the output shaft of the reducer. However, this does not solve the problem that existing conveyors are not conducive to the quantitative and controllable feeding of high-viscosity sucrose esters, nor to the simultaneous conveying of materials from two points, thus affecting conveying efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a screw conveyor for high-viscosity sucrose esters, in order to solve the problems mentioned in the background art, such as the inconvenience of conveyors for quantitative and controllable feeding of high-viscosity sucrose esters, the disadvantage of conveying materials from two points at the same time, and the impact on conveying efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw conveyor for high-viscosity sucrose esters, comprising a worktable and a support frame. The support frame is provided at the top of the worktable, and a liquid storage tank is provided at the top of the worktable on one side of the support frame. A conveying pipe is provided at the top of the support frame, and a movable shaft is provided inside the conveying pipe and is movably connected to the conveying pipe. Two sets of spiral blades are provided on the surface of the movable shaft, and the two sets of spiral blades rotate in opposite directions. A second servo motor is provided at one end of the conveying pipe, and the output end of the second servo motor is connected to the movable shaft. Connecting pipes are symmetrically provided at the bottom of the conveying pipe, and movable pipes are provided inside each connecting pipe and are movably connected to the connecting pipes. A discharge pipe is provided at the bottom of each movable pipe, and a heating mechanism is provided on the outer surface of each discharge pipe. A distribution box is provided at the top of the conveying pipe.

[0006] Preferably, a feeding box is provided at the top of the dispensing box, and a drive shaft is movably installed at the center of the dispensing box.

[0007] Preferably, a first servo motor is provided on the side wall of the material distribution box, and the output end of the first servo motor is connected to the drive shaft.

[0008] Preferably, the outer wall of the drive shaft is provided with multiple sets of material-pushing plates at equal intervals, and the material-pushing plates are slidably connected to the inner wall of the material distribution box.

[0009] Preferably, a water pump is provided at the top of the liquid storage tank, and a liquid outlet pipe is provided at the output end of the water pump. The top of the liquid outlet pipe is provided with multiple equally spaced diversion pipes, and the diversion pipes are connected to the delivery pipe.

[0010] Preferably, the surface of each of the movable tubes is provided with a toothed ring, and the bottom end of each of the conveying tubes on one side of the connecting tube is provided with a third servo motor.

[0011] Preferably, the output end of the third servo motor is provided with a connecting shaft, and the surface of the connecting shaft is provided with gears, and the gears mesh with the gear ring.

[0012] Preferably, a PLC controller is provided on the outer wall of the support frame, and the output terminal of the PLC controller is electrically connected to the input terminals of the water pump, the second servo motor, the first servo motor, and the third servo motor.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This conveyor not only achieves quantitative and controllable feeding of high-viscosity sucrose esters, but also effectively avoids material accumulation and blockage in the conveying pipe through the material-pushing plate structure, ensuring continuous and stable conveying. Furthermore, the bidirectional spiral blade design enables simultaneous material conveying from two points, significantly improving conveying efficiency. Combined with a rotatable discharge pipe structure, it flexibly adapts to various discharge positions and scenario requirements. In addition, the integrated built-in cleaning system and heating and insulation function allow for rapid rinsing of internally adhered materials after conveying, greatly improving cleaning convenience; and by maintaining material flowability through constant temperature, it further ensures smooth and efficient conveying of high-viscosity materials throughout the entire process. (1) Pour the high-viscosity sucrose ester into the feeding box. After the sucrose ester is poured into the feeding box, it will be blocked by the feeding plate. In order to avoid a large amount of sucrose ester being simultaneously fed into the conveying pipe and causing blockage, the first servo motor drives the drive shaft to rotate, and the drive shaft drives the feeding plate to rotate. Since multiple sets of feeding plates are arranged at equal intervals on the surface of the drive shaft, the space between the two sets of feeding plates can hold the same volume of sucrose ester. At this time, the sucrose ester enters the space between the two sets of feeding plates and moves with the feeding plate. The conveyor rotates in stages. The tight sliding connection between the material-distributing plate and the inner wall of the distribution box prevents sucrose ester from leaking into the conveying pipe through the gap between the material-distributing plate and the distribution box. As the material-distributing plate rotates downwards, the sucrose ester slides off the surface of the material-distributing plate and falls into the conveying pipe. By controlling the number of rotations of the material-distributing plate, the amount of sucrose ester entering the conveying pipe can be effectively controlled, thus preventing blockage caused by material adhesion. A second servo motor drives the movable shaft to rotate, which in turn drives two sets of screw... The rotating blades, with two sets of spiral blades rotating in opposite directions, can carry sucrose esters to both ends of the conveying pipe. The sucrose esters then pass through the connecting pipes at both ends of the conveying pipe into the interior of the movable pipe, and slide down into the discharge pipe. The inner walls of the discharge pipe, movable pipe, conveying pipe, connecting pipe, material guide plate, and distribution box are all made of smooth stainless steel, as are the spiral blades. This prevents the sucrose esters from adhering to them. Once the sucrose esters enter the discharge pipe, to prevent reduced fluidity, heat is generated by a heating wire to keep the discharge pipe warm. As is known in the art, viscous substances maintain good fluidity at suitable temperatures, facilitating the rapid output of sucrose esters. This design allows for the quantitative input of highly viscous sucrose esters, preventing blockage of the conveying pipe. The use of two sets of opposite spiral blades facilitates the conveying of sucrose esters from two different points, avoiding the limitations of traditional conveying devices that can only convey from a single point, thus indirectly improving conveying efficiency. (2) The third servo motor drives the gear to rotate through the connecting shaft, the gear drives the movable tube to rotate through the gear ring, and the movable tube drives the discharge tube to rotate, thereby adjusting the output position of the discharge tube and further adjusting its output position to adapt to different conveying scenarios. When the material is conveyed and needs to be cleaned, the water pump pumps the cleaning liquid in the storage tank into the discharge tube and diverts it to the conveying tube through the multi-component diversion pipe to evenly rinse the conveying tube. At the same time, the second servo motor drives the spiral blade to rotate, thereby rinsing and cleaning the material adhering to the surface of the spiral blade. The waste liquid after cleaning is discharged from the discharge tube under the drive of the spiral blade. The above design can adjust the output port position twice, adapt to different conveying scenarios, improve the flexibility of material conveying, and also quickly rinse and clean the inside of the conveyor, improving the convenience of cleaning. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the diversion tube of this utility model; Figure 3 This is a front view cross-sectional structural diagram of the present invention; Figure 4 This is a side view sectional structural diagram of the material distribution box of this utility model; Figure 5 This is a three-dimensional perspective view of the connecting tube of this utility model.

[0015] In the diagram: 1. Workbench; 2. PLC controller; 3. Support frame; 4. Liquid storage tank; 5. Conveying pipe; 6. Distributing box; 7. Feeding box; 8. Diverting pipe; 9. Discharge pipe; 10. Water pump; 11. Movable shaft; 12. Spiral blade; 13. First servo motor; 14. Drive shaft; 15. Feeding plate; 16. Second servo motor; 17. Connecting pipe; 18. Gear ring; 19. Discharge pipe; 20. Heating mechanism; 21. Movable pipe; 22. Gear; 23. Connecting shaft; 24. Third servo motor. Detailed Implementation

[0016] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0017] Please see Figure 1-5 An embodiment of this utility model provides a screw conveyor for high-viscosity sucrose esters, including a workbench 1 and a support frame 3. The support frame 3 is provided at the top of the workbench 1, and a liquid storage tank 4 is provided at the top of the workbench 1 on one side of the support frame 3. A conveying pipe 5 is provided at the top of the support frame 3, and a movable shaft 11 is provided inside the conveying pipe 5. The movable shaft 11 is movably connected to the conveying pipe 5. Two sets of spiral blades 12 are provided on the surface of the movable shaft 11, and the two sets of spiral blades 12 rotate in opposite directions. A second servo motor 16 is provided at one end of the conveying pipe 5, and the output end of the second servo motor 16 is connected to the movable shaft 11. Connecting pipes 17 are symmetrically provided at the bottom of the conveying pipe 5, and movable pipes 21 are provided inside each connecting pipe 17. The movable pipes 21 are movably connected to the connecting pipes 17. A discharge pipe 19 is provided at the bottom of each movable pipe 21, and a heating mechanism 20 is provided on the outer surface of each discharge pipe 19. A distributing box 6 is provided at the top of the conveying pipe 5. In this utility model, the PLC controller 2 is a Siemens S7-200, which is a mature existing technology. Therefore, its internal structure, working principle, and connection and control method with the electrical components in this application will not be described in detail. High-viscosity sucrose ester is poured into the feeding box 7. After the sucrose ester is poured into the feeding box 7, it will be blocked by the feeding plate 15. To avoid a large amount of sucrose ester being simultaneously input into the conveying pipe 5 and causing blockage, the first servo motor 13 can be turned on. The first servo motor 13 drives the drive shaft 14 to rotate, and the drive shaft 14 drives the feeding plate 15 to rotate. Because multiple sets of feeding plates 15 are evenly spaced on the surface of the drive shaft 14... Because the two sets of feeding plates 15 are arranged at a distance, the space between them can hold the same volume of sucrose ester. The sucrose ester enters the space between the two sets of feeding plates 15 and rotates synchronously with them. The tight sliding connection between the feeding plates 15 and the inner wall of the distribution box 6 prevents the sucrose ester from leaking into the conveying pipe 5 through the gap between the feeding plates 15 and the distribution box 6. As the feeding plates 15 rotate downwards, the sucrose ester slides off the surface of the feeding plates 15 and falls into the conveying pipe 5. By controlling the number of rotations of the feeding plates 15, the amount of sucrose ester entering the conveying pipe 5 can be effectively controlled, thus preventing material adhesion within the conveying pipe 5. This causes a blockage. Then, the second servo motor 16 is activated, driving the movable shaft 11 to rotate. The movable shaft 11 then drives the two sets of spiral blades 12 to rotate. Since the two sets of spiral blades 12 rotate in opposite directions, the spiral blades 12 can carry the sucrose ester to both ends of the conveying pipe 5. The sucrose ester then enters the movable pipe 21 through the connecting pipes 17 at both ends of the conveying pipe 5, and slides down from the movable pipe 21 into the discharge pipe 19. The inner walls of the discharge pipe 19, movable pipe 21, conveying pipe 5, connecting pipe 17, material guide plate 15, and distribution box 6 are all made of smooth stainless steel, and the spiral blades 12 are also made of smooth stainless steel. The sucrose ester will not adhere to it. After the sucrose ester enters the discharge pipe 19, in order to avoid the sucrose ester reducing its fluidity in the discharge pipe 19, the heating wire in the heating mechanism 20 can be turned on. The heating wire generates heat to keep the discharge pipe 19 warm. As is known in the art, viscous substances will maintain good fluidity at a suitable temperature, so as to facilitate the rapid output of sucrose ester. The above design can quantitatively input highly viscous sucrose ester to avoid clogging the conveying pipe. Two sets of opposite spiral blades are used to facilitate the conveying of sucrose ester from two different points, avoiding the awkward situation that traditional conveying devices can only convey through a single point, thereby indirectly improving the conveying efficiency. A feeding box 7 is provided at the top of the distributing box 6, and a drive shaft 14 is movably installed at the center of the distributing box 6. A first servo motor 13 is provided on the side wall of the material distribution box 6, and the output end of the first servo motor 13 is connected to the drive shaft 14. Multiple sets of material-pushing plates 15 with equal spacing are provided on the outer wall of the drive shaft 14, and the material-pushing plates 15 are slidably connected to the inner wall of the material distribution box 6. A water pump 10 is installed at the top of the storage tank 4, and an outlet pipe 9 is installed at the output end of the water pump 10. A multi-component diversion pipe 8 with equal spacing is installed at the top of the outlet pipe 9, and the diversion pipe 8 is connected to the delivery pipe 5. The surface of the active tube 21 is provided with toothed rings 18, and the bottom end of the conveying tube 5 on one side of the connecting tube 17 is provided with a third servo motor 24. The output end of the third servo motor 24 is provided with a connecting shaft 23, and the surface of the connecting shaft 23 is provided with a gear 22, and the gear 22 meshes with the gear ring 18. A PLC controller 2 is installed on the outer wall of the support frame 3, and the output terminal of the PLC controller 2 is electrically connected to the input terminals of the water pump 10, the second servo motor 16, the first servo motor 13, and the third servo motor 24. When the sucrose ester moves within the discharge pipe 19, the third servo motor 24 can be activated. The third servo motor 24 drives the gear 22 to rotate via the connecting shaft 23. With the gear 22 meshing with the gear ring 18 and the movable pipe 21 engaging with the connecting pipe 17, the gear 22 drives the movable pipe 21 to rotate via the gear ring 18. The movable pipe 21 then drives the discharge pipe 19 to rotate, thereby adjusting the output position of the discharge pipe 19 and further adjusting its output position to adapt to different conveying scenarios. When the material conveying is complete and internal cleaning is required, the water pump 10 can be activated to clean the storage tank 4. The internal cleaning fluid is pumped into the outlet pipe 9 and then diverted to the conveying pipe 5 through the multi-component diversion pipe 8 to uniformly rinse the inside of the conveying pipe 5. At the same time, the second servo motor 16 can be turned on to drive the spiral blades 12 to rotate, thereby rinsing and cleaning the material adhering to the surface of the spiral blades 12. The waste liquid after cleaning is discharged from the outlet pipe 19 under the drive of the spiral blades 12. The above design allows for secondary adjustment of the output port position, which can be adapted to different conveying scenarios, improve the flexibility of material conveying, and also allow for rapid rinsing and cleaning of the inside of the conveyor, improving the convenience of cleaning.

[0018] Working principle: High-viscosity sucrose ester is poured into the feeding box 7. After the sucrose ester is poured into the feeding box 7, it is blocked by the feeding plate 15. To prevent a large amount of sucrose ester from entering the conveying pipe 5 at the same time and causing blockage, the first servo motor 13 drives the drive shaft 14 to rotate, which in turn drives the feeding plate 15 to rotate. Since multiple sets of feeding plates 15 are arranged at equal intervals on the surface of the drive shaft 14, the space between two sets of feeding plates 15 can hold the same volume of sucrose ester. At this time, the sucrose ester enters the space between the two sets of feeding plates 15 and rotates synchronously with the feeding plates 15. The tight sliding connection between the feeding plate 15 and the inner wall of the dispensing box 6 prevents the sucrose ester from flowing out through the gap between the feeding plate 15 and the dispensing box 6. When the sucrose ester leaks into the conveying pipe 5, it slides off the surface of the conveying plate 15 and falls into the conveying pipe 5 as the material-dispensing plate 15 rotates downwards. By controlling the number of rotations of the material-dispensing plate 15, the amount of sucrose ester entering the conveying pipe 5 can be effectively controlled, thereby preventing blockage caused by material adhesion in the conveying pipe 5. The second servo motor 16 drives the movable shaft 11 to rotate, which in turn drives the two sets of spiral blades 12 to rotate. Since the two sets of spiral blades 12 rotate in opposite directions, they can carry the sucrose ester to both ends of the conveying pipe 5. Then, the sucrose ester enters the interior of the movable pipe 21 through the connecting pipes 17 at both ends of the conveying pipe 5 and slides off the movable pipe 21 into the discharge pipe. Within the 19, the inner walls of the discharge pipe 19, movable pipe 21, conveying pipe 5, connecting pipe 17, material guide plate 15, and distribution box 6 are all made of smooth stainless steel, as is the spiral blade 12. This prevents sucrose ester from adhering to these materials. When the sucrose ester enters the discharge pipe 19, heat is generated by a heating wire to keep the discharge pipe 19 warm, preventing reduced fluidity. As is known in the art, viscous substances maintain good fluidity at suitable temperatures, facilitating rapid output of the sucrose ester. As the sucrose ester moves within the discharge pipe 19, a third servo motor 24 drives a gear 22 via a connecting shaft 23, which in turn drives the movable pipe 21 via a gear ring 18. The discharge pipe 19 is rotated by the movable pipe 21, thereby adjusting the output position of the discharge pipe 19 and further adjusting its output position to adapt to different conveying scenarios. When the material is conveyed and needs to be cleaned, the water pump 10 pumps the cleaning liquid in the storage tank 4 into the discharge pipe 9, and then diverts it to the conveying pipe 5 through the multi-component diversion pipe 8 to evenly rinse the inside of the conveying pipe 5. At the same time, the second servo motor 16 drives the spiral blade 12 to rotate, thereby rinsing and cleaning the material adhering to the surface of the spiral blade 12. The waste liquid after cleaning is discharged from the discharge pipe 19 under the drive of the spiral blade 12. The above is the complete usage of the screw propulsion conveyor for high viscosity sucrose esters.

[0019] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A screw conveyor for high-viscosity sucrose esters, comprising a worktable (1) and a support frame (3), characterized in that: The top of the workbench (1) is provided with a support frame (3), and a liquid storage tank (4) is provided on the top of the workbench (1) on one side of the support frame (3). The top of the support frame (3) is provided with a delivery pipe (5), and a movable shaft (11) is provided inside the delivery pipe (5). The movable shaft (11) is movably connected to the delivery pipe (5). Two sets of spiral blades (12) are provided on the surface of the movable shaft (11), and the two sets of spiral blades (12) rotate in opposite directions. One end of the delivery pipe (5) is provided with a second A servo motor (16) is provided, and the output end of the second servo motor (16) is connected to the movable shaft (11). A connecting pipe (17) is symmetrically provided at the bottom end of the conveying pipe (5). A movable pipe (21) is provided inside the connecting pipe (17). The movable pipe (21) is movably connected to the connecting pipe (17). A discharge pipe (19) is provided at the bottom end of the movable pipe (21). A heating mechanism (20) is provided on the outer surface of the discharge pipe (19). A material distribution box (6) is provided at the top end of the conveying pipe (5).

2. The screw conveyor for high-viscosity sucrose esters according to claim 1, characterized in that: The top of the material distribution box (6) is provided with a feeding box (7), and a drive shaft (14) is movably installed at the center of the inside of the material distribution box (6).

3. The screw conveyor for high-viscosity sucrose esters according to claim 1, characterized in that: The side wall of the material distribution box (6) is provided with a first servo motor (13), and the output end of the first servo motor (13) is connected to the drive shaft (14).

4. A screw conveyor for high-viscosity sucrose esters according to claim 2, characterized in that: The outer wall of the drive shaft (14) is provided with multiple sets of material feeding plates (15) at equal intervals, and the material feeding plates (15) are slidably connected to the inner wall of the material distribution box (6).

5. A screw conveyor for high-viscosity sucrose esters according to claim 1, characterized in that: The top of the storage tank (4) is equipped with a water pump (10), and the output end of the water pump (10) is equipped with an outlet pipe (9). The top of the outlet pipe (9) is equipped with a multi-component diversion pipe (8) with equal spacing, and the diversion pipe (8) is connected to the delivery pipe (5).

6. A screw conveyor for high-viscosity sucrose esters according to claim 1, characterized in that: The surface of each of the active tubes (21) is provided with a toothed ring (18), and the bottom end of the conveying tube (5) on one side of the connecting tube (17) is provided with a third servo motor (24).

7. A screw conveyor for high-viscosity sucrose esters according to claim 6, characterized in that: The output end of the third servo motor (24) is provided with a connecting shaft (23), and the surface of the connecting shaft (23) is provided with a gear (22), and the gear (22) meshes with the gear ring (18).

8. A screw conveyor for high-viscosity sucrose esters according to claim 1, characterized in that: A PLC controller (2) is provided on the outer wall of the support frame (3), and the output end of the PLC controller (2) is electrically connected to the input end of the water pump (10), the second servo motor (16), the first servo motor (13), and the third servo motor (24).

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