Essence powder feeding device with drying function

Abstract

The utility model relates to a perfume powder feeding device with drying function, perfume powder feeding device with drying function includes a bin, a feeding assembly, a weighing unit, controller and a desiccant storage bin, the desiccant storage bin can be targeted to the moistureproof protection of perfume raw materials in the bin, avoid raw material damp agglomeration, influence the flowability and weighing accuracy of powder raw material, the controller controls the feeding assembly controllable delivery to the weighing unit of powder raw material is weighed, the weighing unit real -time transmission weighing data in the controller, and this accurate regulation delivery weight of feeding assembly.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, and in particular to a fragrance powder feeding device with a drying function. Background Technology

[0002] As a key raw material in high-precision manufacturing, the extremely high water absorption of fragrance powder has always been a core challenge restricting the accuracy and stability of feeding devices. When this type of powder is exposed to a normal production environment, water molecules in the air are quickly adsorbed onto its surface, causing the originally loose particles to stick together and form clumps. This change in physical form directly destroys the flowability of the powder, resulting in frequent material bridging and outlet blockage during the operation of the feeding screw. More importantly, the density of the powder changes significantly after it becomes damp. When an analytical balance weighs it in real time, the error caused by density fluctuations will directly lead to a deviation between the target weight and the actual amount added. Especially in high-precision feeding scenarios, this error may be amplified to the point of affecting the quality of the final product.

[0003] Traditional feeding devices often face technical bottlenecks in their drying solutions for flavor powders, which are susceptible to moisture damage. Early devices relied heavily on electrothermal drying, maintaining a low-humidity environment by heating the entire hopper. However, this method is not only energy-intensive and costly, but also prone to deterioration of heat-sensitive components in the flavor powder during heating. Furthermore, the lag in heating efficiency cannot cope with sudden changes in ambient humidity. Some devices have attempted to introduce external drying air sources; however, compressed air drying requires complex filtration and dehumidification equipment, increasing equipment costs. Airflow disturbances can also disrupt stable powder transport, leading to frequent fluctuations in weighing data.

[0004] In terms of monitoring mechanisms, the limitations of traditional technologies are even more pronounced. Most devices encapsulate the desiccant in an invisible, sealed cavity, making it impossible for operators to visually determine the desiccant's moisture saturation. They often have to rely on experience to set replacement cycles. This crude management approach easily leads to situations where desiccant fails to be replaced in time. When the ambient humidity suddenly increases, the failed desiccant cannot perform its moisture-absorbing function, causing a large amount of moisture to enter the silo without being detected in time, ultimately leading to production accidents caused by a sharp drop in feeding accuracy. The complexity of the desiccant replacement process also restricts production efficiency. Some devices, in pursuit of airtightness, design the drying structure as a single unit, requiring operators to use specialized tools to disassemble multiple components to complete the desiccant replacement. A single maintenance can take several hours, severely impacting production capacity in continuous production scenarios.

[0005] Furthermore, traditional drying solutions are clearly insufficiently tailored to the specific needs of fragrance powders. Because fragrance raw materials have a strong adhesion to metal surfaces, ordinary drying components are prone to powder accumulation after prolonged use. This not only reduces drying efficiency but also risks the accumulated powder becoming damp and contaminating the raw materials. Simultaneously, some devices neglect the corrosive nature of fragrance raw materials; ordinary materials used in the drying components rust after prolonged contact with the raw materials, and the rust mixes into the powder, causing product contamination. Replacing with corrosion-resistant materials significantly increases equipment costs. These technical shortcomings make it difficult for traditional drying solutions to achieve a balance between moisture control and economy in high-precision feeding scenarios. There is an urgent need for a new drying solution that combines efficient moisture absorption, visual monitoring, convenient maintenance, and material compatibility. Summary of the Invention

[0006] One advantage of this utility model is that it provides a flavor powder feeding device with a drying function. The desiccant storage compartment of the flavor powder feeding device with a drying function is located on the side of the silo and forms an integrated structure with the silo. It can specifically protect the flavor raw materials in the silo from moisture, prevent the raw materials from getting damp and clumping, affecting the flowability and weighing accuracy. At the same time, this design can effectively prevent the powder raw materials at the discharge port from getting damp and clogging, ensuring the smooth operation of the feeding function, and thus protecting the normal operation of the entire feeding device.

[0007] Another advantage of this utility model is that it provides a fragrance powder feeding device with a drying function. The fragrance powder feeding device with a drying function adopts a detachable cover design. The desiccant is packaged in bags, and the operator can easily remove the desiccant compartment cover, reducing downtime and improving production efficiency.

[0008] Another advantage of this utility model is that it provides a fragrance powder feeding device with a drying function. The fragrance powder feeding device with a drying function uses calcium chloride modified desiccant. The dry state is powdery, and it becomes gel-like after absorbing water. The operator can directly observe its water absorption state through the desiccant storage bin cover so as to replace the desiccant in time and ensure the moisture absorption effect. This effectively copes with the strong water absorption of fragrance raw materials and extends their storage time in the bin.

[0009] According to another aspect of the present invention, the present invention further provides a fragrance powder feeding device with a drying function, the fragrance powder feeding device with a drying function comprising:

[0010] A hopper, wherein the material has a discharge port;

[0011] A desiccant storage compartment is installed on the side of the silo and connected to the interior of the silo.

[0012] A feeding assembly, the feeding assembly including a feeding drive unit and a feeding screw, the feeding drive unit being adapted to drive the feeding screw to rotate, the feeding screw being rotatably mounted on the discharge port;

[0013] A weighing unit, wherein the weighing unit is disposed below the discharge port; and

[0014] A controller is communicatively connected to the feeding drive unit and the weighing unit to receive weight data from the weighing unit and control the feeding amount of the feeding screw in real time.

[0015] According to one embodiment of the present invention, the desiccant storage chamber includes a sealing ring, a sealing cover plate, and a chamber body. The chamber body is installed on the side of the silo and communicates with the interior of the silo through a connecting hole. One end of the sealing ring is connected to the end of the chamber body, and the other end is connected to the sealing cover plate to seal the chamber body.

[0016] According to one embodiment of the present invention, the sealing cover is detachably installed on the main body of the container.

[0017] According to one embodiment of the present invention, the sealing cover is transparent.

[0018] According to one embodiment of the present invention, a stirring assembly is further included. The stirring assembly includes a stirring drive unit, a first stirring arm, and a second stirring arm. The second stirring arm is fixed to the first stirring arm. The first stirring arm is close to the inner wall of the hopper, and the second stirring arm is close to the outer wall of the feeding screw. The stirring drive unit is adapted to drive the first stirring arm and the second stirring arm to rotate around the feeding screw within the hopper.

[0019] According to one embodiment of the present invention, a sealing assembly is further included. The sealing assembly includes a sealing drive unit and a sealing unit. The sealing unit is connected to the sealing drive unit. The sealing drive unit is communicatively connected to the controller and is adapted to control the sealing drive unit to drive the sealing unit to seal the outlet when the weighing unit reaches a predetermined weighing weight.

[0020] According to one embodiment of the present invention, the feeding screw has at least one feeding groove, which is spirally disposed on the feeding screw.

[0021] According to one embodiment of the present invention, the diameter of the feeding screw is close to the inner diameter of the discharge port, and the end of the feeding screw is flush with the end of the discharge port.

[0022] According to one embodiment of the present invention, it includes a main support, the weighing unit is located at the lower part of the main support, the hopper is installed at the upper part of the main support, and the feeding drive unit, the stirring drive unit and the sealing drive unit are installed on the main support.

[0023] In another aspect, this utility model further provides a flavor powder feeding device with a drying function, the flavor powder feeding device with a drying function comprising:

[0024] A hopper, wherein the material has a discharge port;

[0025] A desiccant storage chamber includes a sealing ring, a sealing cover, and a chamber body. The chamber body is installed on the side of the silo and is connected to the inside of the silo through a connecting hole. One end of the sealing ring is connected to the end of the chamber body, and the other end is connected to the sealing cover to seal the chamber body.

[0026] A bag of desiccant, the bag of desiccant having a nonwoven fabric side that allows water molecules to pass through, the bag of desiccant being installed in the desiccant storage compartment with the nonwoven fabric side that allows water molecules to pass through facing the connecting hole;

[0027] A feeding assembly, the feeding assembly including a feeding drive unit and a feeding screw, the feeding drive unit being adapted to drive the feeding screw to rotate, the feeding screw being rotatably mounted on the discharge port;

[0028] A weighing unit, wherein the weighing unit is disposed below the discharge port; and

[0029] A controller is communicatively connected to the feeding drive unit and the weighing unit to receive weight data from the weighing unit and control the feeding amount of the feeding screw in real time.

[0030] The further objectives and advantages of this invention will become fully apparent from the following description and accompanying drawings. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a fragrance powder feeding device with drying function according to an embodiment of the present invention.

[0032] Figure 2 This is a partial exploded structural diagram of a fragrance powder feeding device with drying function according to an embodiment of the present invention.

[0033] Figure 3 This is a partial cross-sectional view of a fragrance powder feeding device with a drying function according to an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of a sealing component of a fragrance powder feeding device with a drying function according to an embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the installation of a bagged desiccant in a fragrance powder feeding device with a drying function according to an embodiment of the present invention. Detailed Implementation

[0036] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0037] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0038] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0039] Reference Appendix Figure 1 To be continued Figure 5As shown, an embodiment of the fragrance powder feeding device 1 with drying function of this utility model is illustrated. The fragrance powder feeding device 1 with drying function includes a hopper 10, a feeding component 20, a weighing unit 50, a controller 60, and a desiccant storage hopper 80. When the powder raw material is added into the hopper 10, the desiccant storage hopper 80 can specifically protect the fragrance raw material in the hopper 10 from moisture, preventing the raw material from becoming damp and clumping, affecting the flowability and weighing accuracy of the powder raw material. The controller 60 controls the feeding component 20 to controllably transport the powder raw material to the weighing unit 50 for weighing. The weighing unit 50 transmits the weighing data to the controller 60 in real time, thereby accurately adjusting the conveying weight of the feeding component 20. It can be understood that the accurate conveying of the powder raw material is achieved through the real-time closed-loop weighing feedback system between the controller 60 and the feeding component 20. Meanwhile, the flavor powder feeding device 1 with drying function can break up the piled raw materials, prevent powder raw material bridging, ensure smooth feeding, and scrape off the raw materials attached to the side wall of the hopper 10 to ensure powder flowability and avoid raw material accumulation affecting feeding.

[0040] In detail, the flavor powder feeding device 1 with drying function also includes a main support 70. In this embodiment, the main support 70 is preferably provided with two legs 71, and a crossbeam 72 is fixed on the legs 71. In other words, the main support 70 is in the shape of a door. The weighing unit 50 is disposed between the two legs 71, the hopper 10 is installed on the crossbeam 72, and the weighing unit 50 is correspondingly installed below the hopper 10.

[0041] In this embodiment, the hopper 10 is shaped like a cylindrical gyroscope, having a cylindrical section and a truncated cone section formed from the bottom surface of the cylindrical section. The hopper 10 has a discharge port 11. The discharge port 11 is located at the bottom of the hopper 10 facing the weighing unit 50. Furthermore, the discharge port 11 is located on the smaller area of ​​the bottom surface of the truncated cone section and leads into the interior of the hopper 10. It can be understood that the downward-facing truncated cone section design utilizes gravity to gather the powder raw material towards the discharge port 11. The inclined surface of the truncated cone section can increase the sliding speed of the powder raw material along the wall, avoiding the accumulation of powder raw material caused by the horizontal bottom surface, and further reducing the residual amount.

[0042] Reference Appendix Figure 2 and attached Figure 3As shown, the desiccant storage chamber 80 is installed on the side of the silo 10. The desiccant storage chamber 80 includes a sealing ring 82, a sealing cover plate 83, and a chamber body 81. The chamber body 81 is installed on the side of the silo 10 and is connected to the interior of the silo 10 through a connecting hole 84. One end of the sealing ring 82 is connected to the end of the chamber body 81, and the other end is connected to the sealing cover plate 83 to seal the chamber body 81.

[0043] In detail, the silo body 81 surrounds the side of the silo 10 and has a hole, namely the connecting hole 84, in the silo 10. The sealing ring 82 is installed around the end of the silo body 81. In other words, the silo body 81 has a sealing groove at the end away from the silo 10 in the wall thickness direction. One end of the sealing ring 82 is embedded in the sealing groove, and the other end is tightly fitted with the contact surface of the sealing cover plate 83 to form a closed sealing structure. It is worth mentioning that the sealing cover plate 83 is detachably installed on the silo body 81. Operators can directly remove the sealing cover plate 83 with an Allen wrench without special tools, which is simple and quick. More importantly, the sealing cover plate 83 is transparent, so that operators can observe it through the sealing cover plate 83.

[0044] Reference Appendix Figure 5As shown, the fragrance powder feeding device 1 with drying function also includes a bagged desiccant 90, which is suitable for installation inside the desiccant storage chamber 80, that is, inside the chamber body 81. In this embodiment, the desiccant type contained in the bagged desiccant 90 is preferably calcium chloride modified desiccant, which is powdery when dry and gel-like after absorbing water. One side of the bagged desiccant 90 is made of non-woven fabric that allows water molecules to pass through, using the micropores between its fibers to allow water molecules to penetrate directionally into the bag and react with calcium chloride crystals to absorb moisture, while preventing powder leakage to avoid contaminating the fragrance raw materials; the other side is a transparent plastic film made of weather-resistant PET material, which can both seal the bag to prevent the desiccant from getting damp in advance and serve as a visual window to clearly show the internal morphological changes. In its dry state, calcium chloride is a loose powder with high porosity and a large specific surface area. It can quickly absorb moisture from the hopper 10 through the connecting holes 84. When the moisture absorption reaches 200%-300% of its own weight, it will completely dissolve into a viscous gel. This obvious phase transition from solid to semi-solid serves as a failure warning signal. Operators can observe through the sealing cover 83 to visually distinguish between the brand-new state of the white powder, the partially clumped semi-hygroscopic state, and the failed state of the overall gel. Based on this, they can flexibly adjust the replacement time as needed, avoiding waste or failure risks caused by fixed-cycle replacement. The structure of the bagged desiccant 90 and the sealing design of the desiccant storage hopper 80 work together to ensure that the non-woven fabric side faces the connecting holes 84 for efficient moisture absorption, while the transparent plastic film side faces the sealing cover 83 for easy monitoring, ensuring both moisture absorption efficiency and precise maintenance.

[0045] Specifically, the discharge port 11 has an inner port 12 and an outer port 13, which are the two ends of the discharge port 11. The inner port 12 faces the interior of the hopper 10, and the outer port 13 faces the weighing unit 50. The inclined surface of the frustum section extends to the inner port 12, and the diameter of the inner port 12 is consistent with the diameter of the outer port 13.

[0046] The feeding assembly 20 includes a feeding drive unit 21 and a feeding screw 22. The feeding screw 22 is adapted to be driven by the feeding drive unit 21 to rotate. Specifically, the axis of the feeding screw 22 coincides with the axis of the hopper 10, that is, with the axis of the discharge port 11. The feeding screw 22 is rotatably installed through the hopper 10, that is, inside the discharge port 11. One end of the feeding screw 22 is rotatably disposed on the top of the hopper 10, and the other end extends from the inner port 12 to the outer port 13 and remains flush with the outer port 13.

[0047] The feeding drive unit 21 is installed on the top of the hopper 10 and connected to the feeding screw 22, thereby driving the feeding screw 22 to rotate. The feeding drive unit 21 drives the feeding screw 22 to rotate in two ways: a normally open mode, where the feeding drive unit 21 drives the feeding screw 22 to rotate continuously for continuous conveying of powder raw materials; and a jog mode, where the feeding drive unit 21 drives the feeding screw 22 to rotate 30° as one jog rotation. Those skilled in the art should understand that the angle at which the feeding drive unit 21 drives the feeding screw 22 to rotate can also be set to other rotation angles, such as 15°, 45°, etc., including but not limited to the rotation angles listed above.

[0048] In this embodiment, the feeding drive unit 21 can be implemented as a servo motor, equipped with a planetary reducer, and connected to the feeding screw 22 through a flexible coupling, so that it can be rotated controllably under the control of the controller 60 to complete the precise feeding of the feeding screw 22.

[0049] The feeding screw 22 has a smooth shaft section and a feeding section. The feeding section extends from the inner port 12 of the discharge port 11 to the outer port 13, and the shaft section extends from the inner port 12 to the top of the hopper 10. Notably, the feeding screw 22 also has a feeding groove 23, which is spirally formed in the feeding section of the feeding screw 22 and extends partially into the space of the hopper 10, that is, into the frustum section, to receive the powder material flowing downwards due to gravity. The diameter of the feeding screw 22 is close to the inner diameter of the discharge port 11, so the powder material is conveyed out of the discharge port 11 via the feeding groove 23 under the drive of the feeding drive unit 21.

[0050] It is worth mentioning that when the feeding groove 23 is spirally arranged on the feeding screw 22, the spacing between each turn of the feeding groove 23 can be set very small, that is, the axial spacing between adjacent threads of the feeding screw 22 can be set small. At the same time, the depth of the feeding groove 23, that is, the vertical distance from the top of the thread to the root, can be set shallower, thereby reducing the volume of powder raw material conveyed by the feeding screw 22 in a single turn, and further improving the single-turn feeding accuracy of the feeding screw 22.

[0051] When the feeding screw 22 rotates at the discharge port 11, the top of the screw thread of the feeding screw 22 is in contact with the inner wall of the discharge port 11. Preferably, the distance between the screw thread of the feeding screw 22 and the inner wall of the discharge port 11 is set to about 0.2 mm. The powder raw material accumulates from the frustum section of the hopper 10 onto the feeding section of the feeding screw 22. Each time the feeding screw 22 rotates, the powder raw material in the feeding groove 23 is advanced by one tooth pitch. When the feeding screw 22 rotates continuously, the powder raw material is continuously advanced, thereby conveying the powder raw material from the inner port 12 of the discharge port 11 to the outer port 13 and falling onto the weighing unit 50. The weighing unit 50 records the weight of the conveyed powder raw material and transmits it to the controller 60.

[0052] In this embodiment, the feeding screw 22 is preferably made of stainless steel, which effectively resists the corrosiveness of the powder raw material and avoids contamination of the powder raw material due to rust. Stainless steel is also easy to clean; its smooth surface makes it difficult for powder and bacteria to remain, and it is resistant to acid and alkali cleaning agents. It can be thoroughly cleaned by high-pressure washing or steam sterilization. Those skilled in the art should understand that the feeding screw 22 can also be made of other materials, including but not limited to those listed above.

[0053] The flavor powder feeding device 1 with drying function also includes a stirring assembly 30. The stirring assembly 30 further includes a stirring drive unit 31, at least one first stirring arm 32 and at least one second stirring arm 33. The second stirring arm 33 is fixedly connected to the first stirring arm 32. The stirring drive unit 31 is adapted to drive the first stirring arm 32 and the second stirring arm 33 to rotate in the hopper 10.

[0054] In detail, the stirring drive unit 31 is installed on the crossbeam 72 of the main support 70. In this embodiment, the preferred number of the first stirring arm 32 and the second stirring arm 33 is two, that is, a pair. The two first stirring arms 32 are symmetrically and rotatably installed in the hopper 10. More specifically, the two first stirring arms 32 rotate about the feeding screw 22 as the axis. The first stirring arm 32 extends from the top of the hopper 10 along the inner wall of the hopper 10 to the vicinity of the feeding screw 22, but does not come into close contact with the inner wall of the hopper 10, but maintains a certain distance from the inner wall of the hopper 10.

[0055] In detail, the first stirring arm 32 has a vertical section extending downward along the inner wall of the cylindrical section of the hopper 10 and an inclined section extending along the frustum section, so that the first stirring arm 32 fits against the inner wall of the hopper 10. When the first stirring arm 32 rotates, the scraping structure of the vertical section removes the powder material adhering to the inner wall of the hopper 10, while breaking the electrostatic adsorption between powder particles, maintaining the flowability of the powder material, and avoiding feeding difficulties caused by powder agglomeration. The stirring drive unit 31 can drive the first stirring arm 32 to rotate in both directions, applying alternating shearing forces to the powder material, further removing the powder layer adhering to the inner wall of the hopper 10 through alternating scraping, maintaining the flowability of the powder material in the hopper 10, and keeping the powder material in a loose state. This further reduces the agglomeration rate and bridging rate of the powder material when it enters the feeding screw 22, ensuring the smooth conveying of the powder material.

[0056] More specifically, one end of the second stirring arm 33 is fixed to the first stirring arm 32, and the other end extends along the axial direction of the feeding screw 22, forming a parallel section parallel to the feeding screw 22. The second stirring arm 33 is close to the feeding screw 22 but maintains a certain distance from it. As the second stirring arm 33 rotates with the first stirring arm 32, it removes the powder material adhering to the outer wall of the feeding screw 22 through the parallel section, simultaneously breaking the electrostatic adsorption between powder particles, maintaining the flowability of the powder material, and preventing feeding difficulties caused by powder agglomeration. The second stirring arm 33 rotates forward and backward with the first stirring arm 32, applying alternating shearing forces to the powder material, further removing the powder layer adhering to the outer wall of the feeding screw 22 through alternating scraping, maintaining the flowability of the powder material in the hopper 10, and ensuring that the powder material is ultimately in a loose state. This further reduces the agglomeration rate and bridging rate of the powder material when entering the feeding screw 22, ensuring smooth conveying of the powder material.

[0057] The first stirring arm 32 and the second stirring arm 33 can effectively maintain the flowability of the powder raw material in the hopper 10, further break up the accumulated powder raw material, prevent the powder raw material from bridging, and ensure smooth feeding.

[0058] In this embodiment, the first stirring arm 32 and the second stirring arm 33 are preferably made of stainless steel, which effectively resists the corrosiveness of the powder raw materials and avoids contamination of the powder raw materials due to rust. Stainless steel has high strength and wear resistance, can withstand the torque generated by the forward and reverse rotation of the first stirring arm 32 and the second stirring arm 33, is not easily deformed or worn, and its fatigue resistance also meets the needs of long-term frequent switching of direction. At the same time, stainless steel is also easy to clean. The surface of stainless steel is smooth, does not easily leave powder and bacteria, and is resistant to corrosion by acid and alkali cleaning agents. It can be thoroughly cleaned by high-pressure washing or steam sterilization. Those skilled in the art should understand that the first stirring arm 32 and the second stirring arm 33 can also be made of other materials, including but not limited to the materials listed above.

[0059] Reference Appendix Figure 4 As shown, the flavor powder feeding device 1 with drying function further includes a sealing component 40. The sealing component 40 includes a sealing drive unit 41 and a sealing unit 42. The sealing unit 42 is connected to the sealing drive unit 41. The sealing drive unit 41 is communicatively connected to the controller 60 and is adapted to control the sealing drive unit 41 to drive the sealing unit 42 to seal the outer port 13 of the discharge port 11 when the weighing unit 50 reaches the predetermined weighing weight.

[0060] In detail, in this embodiment, the sealing drive unit 41 is implemented as a rotary pressing cylinder. The sealing drive unit 41 is installed below the crossbeam 72 of the main support 70, and the sealing unit 42 is installed below the rotary pressing cylinder and near the outer port 13 of the discharge port 11. The sealing drive unit 41 is communicatively connected to the controller 60 to control the sealing unit 42 to close or open the discharge port 11. Those skilled in the art should understand that the sealing drive unit 41 can also be implemented as other devices, including but not limited to those listed above.

[0061] When the discharge port 11 delivers powdered raw material to the weighing unit 50, the sealing drive unit 41 drives the sealing unit 42 to be in a state away from the discharge port 11. When the weighing unit 50 detects that the predetermined weight has been reached, the controller 60 controls the sealing drive unit 41 to drive the sealing unit 42 to seal the outer port 13 of the discharge port 11. The sealing unit 42 tightly presses against the outer port 13 of the discharge port 11 to prevent the powdered raw material from leaking into the weighing unit and to ensure the accuracy of the weighing unit 50.

[0062] The weighing unit 50 also includes a container 51, which is installed above the weighing unit 50. The opening of the container 51 faces the discharge port 11. The powder raw material in the hopper 10 is conveyed into the container 51 via the feeding component 20. In this embodiment, the weighing unit 50 is implemented as an analytical balance. The analytical balance uses a high-precision sensor that can accurately capture weight changes at the microgram level, meeting the high-precision feeding requirements of flavor powder and ensuring a high degree of consistency between the target weight and the actual amount added. The weighing unit 50 can transmit weight data to the controller 60 in real time with low transmission delay, enabling the system to respond quickly to weight changes. For example, in jog mode, the number of jogs can be dynamically adjusted according to the latest weighing data to avoid over-adjustment of feeding due to delay.

[0063] The controller 60 is installed on one side of the weighing unit 50 and can be communicatively connected to the feeding assembly 20 and the sealing assembly 40. When the flavor powder feeding device 1 with drying function is working, the powder raw material is put into the hopper 10, the bagged desiccant 90 is installed in the desiccant storage hopper 80 to dry the powder raw material, the stirring assembly 30 starts to work, the first stirring arm 32 is attached to the inner wall of the hopper 10, so that when the first stirring arm 32 rotates, it removes the powder raw material attached to the inner wall of the hopper 10 through the vertical section scraping structure. When the second stirring arm 33 rotates with the first stirring arm 32, it removes the powder raw material attached to the outer wall of the feeding screw 22 through the parallel section, and at the same time breaks the electrostatic adsorption between the powder raw material particles, maintains the flowability of the powder raw material, and avoids feeding difficulties caused by powder raw material agglomeration. The second stirring arm 33 rotates forward and backward with the first stirring arm 32, applying alternating shearing force to the powder material. It further removes the powder layer adhering to the outer wall of the feeding screw 22 by alternating scraping, maintaining the fluidity of the powder material in the hopper 10, so that the powder material is in a loose state, further reducing the agglomeration rate and bridging rate of the powder material when entering the feeding screw 22, and causing the powder material to converge above the discharge port 11.

[0064] A target weight X to be weighed is set. The controller 60 controls the feeding screw 22 to feed 90% of the target weight of powder raw material in a normally open mode. The powder raw material is transported from the inner port 12 of the outlet 11 to the outer port 13 via the feeding trough 23 of the feeding screw 22 and received by the container 51. When the weighing unit 50 reads the weight data of 90% of the target weight, it notifies the controller 60. The controller 60 controls the feeding screw 22 to operate in a jog mode, and takes the average value of the jog filling volume of 10 jogs as the standard jog filling volume. The feeding screw 22 delivers one jog of filling volume with each jog. The controller 60 calculates the number of jogs n of the feeding screw 22, where n = (X - current weight) / (jog filling volume × 2). After the controller 60 controls the feeding screw 22 to jog n times, the controller 60 recalculates the number of jogs. The above operation is repeated until n < 1, at which point feeding stops. The controller 60 controls the sealing drive unit 41 to drive the sealing unit 42 to seal the outer port 13 of the outlet 11, thereby completing the high-precision quantitative delivery of powder raw materials into the container 51.

[0065] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A fragrance powder feeding device with a drying function, characterized in that, include: A hopper, wherein the material has a discharge port; A desiccant storage compartment is installed on the side of the silo and connected to the interior of the silo. A feeding assembly, the feeding assembly including a feeding drive unit and a feeding screw, the feeding drive unit being adapted to drive the feeding screw to rotate, the feeding screw being rotatably mounted on the discharge port; A weighing unit is disposed below the discharge port; and A controller is communicatively connected to the feeding drive unit and the weighing unit to receive weight data from the weighing unit and control the feeding amount of the feeding screw in real time.

2. The fragrance powder feeding device with drying function according to claim 1, wherein the desiccant storage chamber includes a sealing ring, a sealing cover plate, and a chamber body, the chamber body is installed on the side of the silo and communicates with the inside of the silo through a connecting hole, one end of the sealing ring is connected to the end of the chamber body, and the other end is connected to the sealing cover plate to seal the chamber body.

3. The fragrance powder feeding device with drying function according to claim 2, wherein the sealing cover is detachably installed on the main body of the silo.

4. The fragrance powder feeding device with drying function according to claim 3, wherein the sealing cover is transparent.

5. The fragrance powder feeding device with drying function according to claim 4, further comprising a stirring assembly, the stirring assembly comprising a stirring drive unit, a first stirring arm, and a second stirring arm, the second stirring arm being fixed to the first stirring arm, the first stirring arm being close to the inner wall of the hopper, the second stirring arm being close to the outer wall of the feeding screw, and the stirring drive unit being adapted to drive the first stirring arm and the second stirring arm to rotate around the feeding screw within the hopper.

6. The fragrance powder feeding device with drying function according to claim 5, further comprising a sealing assembly, the sealing assembly comprising a sealing drive unit and a sealing unit, the sealing unit being connected to the sealing drive unit, the sealing drive unit being communicatively connected to the controller, and adapted to control the sealing drive unit to drive the sealing unit to seal the discharge port when the weighing unit reaches a predetermined weighing weight.

7. The fragrance powder feeding device with drying function according to claim 6, wherein the feeding screw has at least one feeding groove, and the feeding groove is spirally arranged on the feeding screw.

8. The fragrance powder feeding device with drying function according to claim 7, wherein the diameter of the feeding screw is close to the inner diameter of the discharge port, and the end of the feeding screw is flush with the end of the discharge port.

9. The fragrance powder feeding device with drying function according to claim 8, comprising a main support, the weighing unit located at the lower part of the main support, the hopper installed at the upper part of the main support, and the feeding drive unit, the stirring drive unit, and the sealing drive unit installed on the main support.

10. A fragrance powder feeding device with a drying function, characterized in that, include: A hopper, wherein the material has a discharge port; A desiccant storage chamber includes a sealing ring, a sealing cover, and a chamber body. The chamber body is installed on the side of the silo and is connected to the inside of the silo through a connecting hole. One end of the sealing ring is connected to the end of the chamber body, and the other end is connected to the sealing cover to seal the chamber body. A bag of desiccant, the bag of desiccant having a nonwoven fabric side that allows water molecules to pass through, the bag of desiccant being installed in the desiccant storage compartment with the nonwoven fabric side that allows water molecules to pass through facing the connecting hole; A feeding assembly, the feeding assembly including a feeding drive unit and a feeding screw, the feeding drive unit being adapted to drive the feeding screw to rotate, the feeding screw being rotatably mounted on the discharge port; A weighing unit is disposed below the discharge port; and A controller is communicatively connected to the feeding drive unit and the weighing unit to receive weight data from the weighing unit and control the feeding amount of the feeding screw in real time.

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