A loose and anti-caking quantitative feeding device for dough before pressing

Abstract

The application discloses a loose anti-blocking quantitative feeding device for dough before pressing, relates to the technical field of material conveying, and comprises an anti-blocking mechanism, a feeding mechanism is connected to the side of the anti-blocking mechanism, and a quantitative feeding mechanism is arranged below the anti-blocking mechanism, and the quantitative feeding mechanism is used for quantitatively conveying the dough. In the application, the center multilayer scattering structure and the ring auxiliary scattering mechanism are cooperated to complete the full-section non-blind-area loose treatment in the process of conveying the dough to the metering ring, effectively destroy the liquid bridge force between the particles, inhibit the material agglomeration and blockage and the continuous thickening of the wall bonding layer, rely on the axial puncture disturbance of the reciprocating arch-breaking mechanism, and actively break the arch structure of the discharge port, so that the problems of conveying jamming in the contraction section and feeding pulse fluctuation are solved, and the continuous conveying stability and operation reliability of the material conveying device are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and in particular to a quantitative feeding device for loosening and preventing agglomeration of shaped material before pressing. Background Technology

[0002] On the baijiu koji-making production line, before the mixed and moistened koji material enters the koji press, a quantitative feeding device is set between the mixing process and the pressing and molding process. It is the core feeding equipment responsible for the quantitative supply of koji material. It consists of a storage hopper, a quantitative feeding mechanism, a drive device, a discharge guide chute, and a control system. It can accurately feed the koji material into the koji pressing mold cavity according to the set volume required for a single pressing. This not only replaces the rough operation of manually shoveling and filling the mold based on experience, but also eliminates the adverse effects of koji quality fluctuations on the consistency of subsequent fermentation. Furthermore, it can improve the production line cycle and capacity with automatic continuous feeding, providing a key process connection guarantee for the mechanization of the entire koji-making process.

[0003] However, in actual operation, after the koji material is mixed and moistened, it is in a sticky state with high water content. Under the action of water, a liquid film is formed on the surface of the particles. The liquid bridging force between adjacent particles makes the material have a tendency to spontaneously agglomerate. During the process of the material being piled up and left to stand in the hopper, the particles are rearranged under the action of their own weight. Fine particles migrate to the discharge port area and adhere to the wall to form a thickened adhesive layer. The longer the standing time, the more uniform the liquid phase distribution between particles becomes, the stronger the liquid bridging effect becomes, and the degree of agglomeration and clumping intensifies accordingly.

[0004] When the aforementioned materials with a tendency to agglomerate enter the quantitative feeding stage using a constant volume metering method in a compacted and piled state, the feeding mechanism applies a squeezing action on the shaped material during the filling process, further compacting the partially agglomerated material before it enters the metering chamber. The agglomerated material occupies an irregular volume in the metering chamber, causing the feeding volume to deviate from the set value each time. At the same time, the hopper outlet often adopts a shrinking structure, and the agglomerated material is prone to jamming when passing through the shrinking section with a gradually decreasing cross-sectional area, causing feeding interruption or pulse-like fluctuations in the feeding amount. This stage lacks a structure to pre-loosen the shaped material before quantitative division, resulting in the loss of feeding uniformity and making it difficult to stably control the quality of the pressed shaped material. Summary of the Invention

[0005] One objective of this invention is to provide a quantitative feeding device for loosening and preventing caking of koji material before pressing. This invention can effectively break up caking koji material and improve the quality stability of koji material during quantitative feeding.

[0006] According to an embodiment of the present invention, a quantitative feeding device for loosening and preventing caking of koji material before pressing includes an anti-caking mechanism, a feeding mechanism is connected to the side of the anti-caking mechanism, and a quantitative feeding mechanism is provided below the anti-caking mechanism. The quantitative feeding mechanism is used to quantitatively feed the koji material.

[0007] The anti-caking mechanism includes a storage hopper, a drive motor is fixedly installed on the top of the storage hopper, and a discharge pipe is connected to the bottom of the storage hopper; the output end of the drive motor is fixedly connected to a No. 1 connecting shaft downwards, and the bottom end of the No. 1 connecting shaft is drivenly connected to a caking dispersing component, and the bottom of the caking dispersing component is fixedly connected to a discharge auger, which is correspondingly arranged above the discharge pipe for conveying the material downwards;

[0008] An auxiliary dispersing mechanism is fixedly connected to the shaft of the No. 1 connecting shaft. The auxiliary dispersing mechanism is used to scrape off the lumps attached to the inner wall of the storage hopper and to break up the lumps in the ring area between the dispersing component and the inner wall of the storage hopper.

[0009] The device also includes a reciprocating arch-breaking mechanism, which is used to drive the agglomeration dispersing component and the discharge auger to move up and down along the axial direction to break the bridging phenomenon of the curved material during quantitative conveying.

[0010] Preferably, the agglomeration dispersing component includes a transmission sleeve and a transmission shaft, the transmission shaft being coaxially and slidably inserted inside the transmission sleeve; a spring is provided between the inner top wall of the transmission sleeve and the top end of the transmission shaft, the two ends of the spring being fixedly connected to the transmission sleeve and the transmission shaft respectively.

[0011] The bottom end of the drive shaft is fixedly connected to a second connecting shaft, and the bottom end of the second connecting shaft is fixedly connected to the discharge auger; the outer wall of the drive sleeve is fixedly installed with a third dispersing paddle, and the shaft of the second connecting shaft is fixedly installed with a first dispersing paddle and a second dispersing paddle from top to bottom.

[0012] Preferably, the inner wall of the transmission sleeve is provided with a limiting groove extending along the axial direction, and the outer wall of the transmission shaft is provided with a limiting protrusion that slides and adapts to the limiting groove; the limiting protrusion cooperates with the limiting groove to enable the transmission shaft and the transmission sleeve to rotate synchronously in the circumferential direction and slide relative to each other in the axial direction.

[0013] Preferably, the auxiliary dispersing mechanism includes a first gear, a second gear, a sun gear, and an annular slide rail;

[0014] The first gear is fixedly sleeved on the shaft of the first connecting shaft, the annular slide rail is fixedly installed on the inner top wall of the storage hopper, and an annular slider is slidably engaged in the annular slide rail. The lower end face of the annular slider is fixedly connected to the upper end face of the sun gear.

[0015] The No. 2 gear is meshed between the No. 1 gear and the sun gear. The upper end of the No. 2 gear shaft is rotatably connected to the inner top wall of the storage hopper. The lower end face of the No. 2 gear is fixedly connected to the No. 3 connecting shaft. The No. 4 dispersing paddle is fixedly installed on the shaft body of the No. 3 connecting shaft.

[0016] The outer edge of the sun gear is provided with a plurality of scraper blades arranged in a circumferential array, and the scraper blades are fitted to the inner wall of the storage hopper.

[0017] Preferably, the reciprocating arch-breaking mechanism includes a fixed mounting frame, in which a transmission component and a reciprocating component are integrated; the power input end of the transmission component is fixedly connected to the bottom end of the No. 3 connecting shaft, and the power output end of the transmission component is connected to the reciprocating component; the output end of the reciprocating component is rotatably connected to the lower part of the agglomeration dispersing component, which is used to drive the agglomeration dispersing component and the discharge auger to perform up-and-down reciprocating motion.

[0018] Preferably, the transmission assembly includes a driving bevel gear and a driven bevel gear that mesh with each other; both the driving bevel gear and the driven bevel gear are rotatably supported on the mounting frame, and the center of the top surface of the driving bevel gear is coaxially and fixedly connected to the bottom end of the No. 3 connecting shaft.

[0019] Preferably, the reciprocating assembly includes a crank connecting rod, the crank shaft of which is rotatably mounted on a mounting frame, and the crank shaft is coaxially fixedly connected to the driven bevel gear; a piston is hinged to the connecting rod end of the crank connecting rod, and the piston is slidably mounted vertically within the mounting frame;

[0020] A connecting bracket is fixedly connected to the top surface of the piston. The connecting bracket slides upward through the mounting bracket, and the upper end of the connecting bracket is rotatably connected to the shaft of the second connecting shaft.

[0021] Preferably, the quantitative feeding mechanism includes a moving component, a leveling component, and a collection box;

[0022] The horizontal motion output end of the moving component is equipped with a rotating component, the rotary output end of the rotating component is equipped with a lifting component, the vertical motion output end of the lifting component is equipped with a flipping component, the flipping output end of the flipping component is equipped with a clamping component, and the clamping component clamps a fixed-volume metering box.

[0023] The leveling component is located above the horizontal movement path of the volumetric metering box. The leveling component consists of a fixed frame and a scraping plate connected to the fixed frame. The collection box is located below the scraping plate, and the bottom surface of the scraping plate is flush with the top surface of the volumetric metering box.

[0024] Preferably, a control valve is connected in series with the body of the discharge pipe.

[0025] The beneficial effects of this invention are:

[0026] 1. This invention addresses the industry pain points of viscous and wet koji materials being prone to agglomeration, wall adhesion, and discharge bridging during storage and conveying. This device utilizes a central multi-layer dispersing structure and a ring-area auxiliary dispersing mechanism working in conjunction with a wall-mounted scraping component to achieve full-section, blind-spot-free loosening during the conveying of koji materials to the metering stage. This effectively disrupts the liquid bridging forces between particles, inhibiting material agglomeration and the continuous thickening of the wall adhesion layer. Simultaneously, relying on the axial piercing disturbance of the reciprocating arch-breaking mechanism, it actively breaks the material arch structure at the discharge port, solving the problems of conveying blockage in the contraction section and feeding pulse fluctuations. This significantly improves the continuous conveying stability and operational reliability of the material conveying device, reduces the frequency of downtime for unblocking and manual cleaning, and ensures continuous and smooth operation throughout the entire koji-making and feeding process.

[0027] 2. This invention incorporates a pre-processing and homogenization of materials into the entire conveying process, optimizing the material conditions for constant-volume conveying from the source. Combined with the precise coordination of the constant-volume metering box and the leveling component, it effectively eliminates conveying and metering deviations caused by irregular volume occupation of agglomerated materials and uneven filling density. This significantly improves the metering accuracy and uniformity of quantitative conveying, keeping the quality fluctuation of individual koji blanks within a minimal range and ensuring consistency in the subsequent fermentation process. Simultaneously, by replacing the extensive manual shoveling and molding operations with fully automated continuous conveying, it can match higher production line conveying cycles, effectively improving conveying efficiency and koji production capacity, and providing reliable equipment support for the mechanized conveying and process integration of the entire koji production process. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a first three-dimensional structural schematic diagram of a quantitative feeding device for loosening and preventing agglomeration of shaped material before pressing, as proposed in this invention.

[0030] Figure 2 This is a second three-dimensional structural schematic diagram of a quantitative feeding device for loosening and preventing agglomeration of shaped material before pressing, as proposed in this invention.

[0031] Figure 3 This is a schematic diagram of the internal structure of the storage hopper in a quantitative feeding device for preventing the koji material from clumping and pressing before pressing, as proposed in this invention.

[0032] Figure 4 This is a front view of the cross-sectional structure of the transmission sleeve in a quantitative feeding device for preventing the material from clumping and agglomerating before pressing, as proposed in this invention.

[0033] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the reciprocating arch-breaking mechanism in a quantitative feeding device for preventing the shaped material from clumping and pressing before pressing, as proposed in this invention.

[0034] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0035] Figure 7 This is a schematic diagram showing the position and structure of the anti-caking mechanism and the quantitative feeding mechanism in a quantitative feeding device for preventing the material from clumping before pressing, as proposed in this invention.

[0036] Figure 8 This is a three-dimensional structural diagram of the quantitative feeding mechanism in a quantitative feeding device for preventing the shaped material from clumping and pressing before pressing, as proposed in this invention.

[0037] In the diagram: 1. Anti-caking mechanism; 11. Storage hopper; 12. Drive motor; 13. Discharge pipe; 14. No. 1 connecting shaft; 15. Transmission sleeve; 16. Transmission shaft; 17. No. 2 connecting shaft; 18. Spring; 19. No. 1 dispersing paddle; 110. No. 2 dispersing paddle; 111. Discharge auger; 112. No. 3 dispersing paddle; 2. Feeding mechanism; 3. Quantitative feeding mechanism; 31. Moving component; 32. Rotating component; 33. Lifting component; 34. Tilting component; 3 5. Clamping assembly; 36. Volumetric metering box; 37. Scraping assembly; 38. Collection box; 4. Reciprocating arch-breaking mechanism; 41. Mounting frame; 42. Driving bevel gear; 43. Driven bevel gear; 44. Crank connecting rod; 45. Piston; 46. Connecting frame; 5. Auxiliary dispersing mechanism; 51. Gear No. 1; 52. Gear No. 2; 53. Sun gear; 54. Annular slide rail; 55. Annular slider; 56. Scraper; 57. Connecting shaft No. 3; 58. Dispersing paddle No. 4. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0039] refer to Figures 1-8 This device is used in the production line of baijiu koji making, and is set between the mixing process and the pressing process. It is used to loosen and prevent caking of the mixed and moistened koji material and to complete the precise quantitative conveying. It includes an anti-caking mechanism 1, and a feeding mechanism 2 is connected to the side of the anti-caking mechanism 1. The feeding mechanism 2 is used to continuously feed the koji material that has been mixed upstream into the anti-caking mechanism 1 for temporary storage. A quantitative feeding mechanism 3 is set below the anti-caking mechanism 1. The quantitative feeding mechanism 3 is used to measure the loosened koji material at a fixed volume and quantitatively convey it to the downstream pressing mold cavity.

[0040] The anti-caking mechanism 1 includes a storage hopper 11, a drive motor 12 fixedly mounted on the top of the storage hopper 11, and a discharge pipe 13 connected to the bottom of the storage hopper 11. A control valve is connected in series with the body of the discharge pipe 13 to control the discharge flow and the feeding rhythm. The output end of the drive motor 12 is fixedly connected downward to a first connecting shaft 14. The bottom end of the first connecting shaft 14 is drivenly connected to a caking dispersing component. The bottom of the caking dispersing component is fixedly connected to a discharge auger 111, which is positioned above the discharge pipe 13 to discharge the material. The dispersed material is stably conveyed downwards into the discharge pipe 13; the shaft of the first connecting shaft 14 is fixedly connected to an auxiliary dispersing mechanism 5, which is used to scrape off the material adhering to the inner wall of the storage hopper 11 and disperse the clumped material in the ring area between the dispersing component and the inner wall of the storage hopper 11, eliminating the dispersing blind zone; the device also includes a reciprocating arch breaking mechanism 4, which is used to drive the clump breaking component and the discharge auger 111 to move up and down along the axial direction to break the bridging phenomenon formed by the material during the discharge process and ensure smooth and stable material discharge.

[0041] In this implementation scheme, the koji material, which has been mixed and moistened upstream, is temporarily stored in the storage hopper 11 through the feeding mechanism 2. The drive motor 12 outputs power to drive the first connecting shaft 14 to rotate, thereby synchronously driving the agglomeration and dispersing component and the auxiliary dispersing mechanism 5 to operate synchronously. They apply shearing and dispersing action to the koji material in the central area and the edge ring area of ​​the storage hopper 11, respectively, to prevent the sticky and wet koji material from agglomerating and clumping due to the liquid bridge force. At the same time, the reciprocating arch-breaking mechanism 4 drives the agglomeration and dispersing component to move up and down along the axial direction. In conjunction with the rotational dispersing action, it repeatedly pierces the discharge port area to break the formed material arch. The dispersed koji material is forced to fall into the quantitative feeding mechanism 3 below through the discharge pipe 13 under the forced conveying of the discharge auger 111. The quantitative feeding mechanism 3 completes the fixed volume metering and fixed point unloading to ensure the consistent quality of the feeding of each koji blank and eliminate the impact of quality fluctuations on the consistency of subsequent fermentation.

[0042] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The agglomeration dispersing component includes a transmission sleeve 15 and a transmission shaft 16. The transmission shaft 16 is coaxially and slidably inserted inside the transmission sleeve 15. A spring 18 is provided between the inner top wall of the transmission sleeve 15 and the top end of the transmission shaft 16. The two ends of the spring 18 are fixedly connected to the inner top wall of the transmission sleeve 15 and the top end of the transmission shaft 16, respectively, providing elastic buffering and restoring force for the axial sliding of the transmission shaft 16. The inner wall of the transmission sleeve 15 has a limiting groove extending axially, and the outer wall of the transmission shaft 16 has a limiting protrusion that slides and adapts to the limiting groove. The limiting protrusion is fitted inside the limiting groove. The cooperation between the two allows the transmission shaft 16 and the transmission sleeve 15 to maintain circumferential synchronous rotation and simultaneously slide relative to each other axially, ensuring stable transmission of rotational torque while meeting the displacement requirements of axial reciprocating motion. The bottom end of the drive shaft 16 is fixedly connected to the second connecting shaft 17, and the bottom end of the second connecting shaft 17 is fixedly connected to the discharge auger 111; the outer wall of the drive sleeve 15 is fixedly installed with the third dispersing paddle 112, and the shaft of the second connecting shaft 17 is fixedly installed with the first dispersing paddle 19 and the second dispersing paddle 110 from top to bottom. The multi-layer dispersing paddles are arranged in a staggered manner along the axial direction, covering the main storage area inside the storage hopper 11, and simultaneously applying shearing and dispersing action to curved materials of different heights.

[0043] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The auxiliary dispersing mechanism 5 includes a first gear 51, a second gear 52, a sun gear 53, and an annular slide rail 54. The first gear 51 is fixedly sleeved on the shaft of the first connecting shaft 14 and rotates synchronously with the first connecting shaft 14. The annular slide rail 54 is fixedly installed on the inner top wall of the storage hopper 11. An annular slider 55 is slidably engaged inside the annular slide rail 54. The lower end face of the annular slider 55 is fixedly connected to the upper end face of the sun gear 53, so that the sun gear 53 can rotate smoothly around the central axis of the storage hopper 11 along the trajectory of the annular slide rail 54 without radial swaying. Gear 52 is meshed between gear 51 and sun gear 53. The upper end of the axle of gear 52 is rotatably connected to the inner top wall of the storage hopper 11. The lower end face of gear 52 is fixedly connected to a connecting shaft 57. A dispersing paddle 58 is fixedly installed on the shaft of the connecting shaft 57. When the connecting shaft 14 drives gear 51 to rotate, the sun gear 53 and the connecting shaft 57 are driven to rotate synchronously through the intermediate transmission of gear 52. The direction of rotation of the sun gear 53 is opposite to that of the connecting shaft 14. Several scraper blades 56 are arranged in a circumferential array along the outer edge of the sun gear 53. The scraper blades 56 are attached to the inner wall of the storage hopper 11. When the sun gear 53 rotates in the opposite direction, it can continuously scrape off the sticky and wet material attached to the wall surface, preventing fine particles from accumulating and forming a thickened adhesive layer. At the same time, the fourth dispersing paddle 58 rotates with the third connecting shaft 57 to supplement and disperse the material in the annular area between the central dispersing paddle and the inner wall of the storage hopper 11, eliminating the dispersing blind zone and improving the overall loosening and anti-caking effect.

[0044] refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 The reciprocating arch-breaking mechanism 4 includes a fixed mounting frame 41, which is fixed to the lower part of the storage hopper 11. The mounting frame 41 integrates a transmission component and a reciprocating component. The power input end of the transmission component is fixedly connected to the bottom end of the third connecting shaft 57, and the power output end of the transmission component is connected to the reciprocating component. The output end of the reciprocating component is rotatably connected to the agglomeration dispersing component, which is used to drive the agglomeration dispersing component and the discharge auger 111 to perform up-and-down reciprocating motion.

[0045] Specifically, the transmission assembly includes a driving bevel gear 42 and a driven bevel gear 43 that mesh with each other; both the driving bevel gear 42 and the driven bevel gear 43 are rotatably supported on the mounting bracket 41, and the center of the top surface of the driving bevel gear 42 is coaxially and fixedly connected to the bottom end of the third connecting shaft 57, converting the vertical rotation torque of the third connecting shaft 57 into a horizontal rotation torque output.

[0046] Furthermore, the reciprocating assembly includes a crank connecting rod 44, the crankshaft of which is rotatably mounted on the mounting bracket 41, and the crankshaft is coaxially fixed to the driven bevel gear 43, rotating synchronously with the driven bevel gear 43; a piston 45 is hinged to the connecting rod end of the crank connecting rod 44, and the piston 45 is slidably mounted in the mounting bracket 41 in a vertical direction, converting the rotational motion of the crank into the vertical reciprocating linear motion of the piston 45. A connecting bracket 46 is fixedly connected to the top surface of the piston 45. The connecting bracket 46 slides upward through the mounting bracket 41, and the upper end of the connecting bracket 46 is rotatably connected to the shaft of the second connecting shaft 17. When the piston 45 makes vertical reciprocating motion, the connecting bracket 46 drives the second connecting shaft 17, the transmission shaft 16 and the bottom discharge auger 111 to make up-down reciprocating motion synchronously. In conjunction with its own rotational dispersing action, it pierces and breaks the arches of the curved material in the discharge port area, completely eliminating the bridging and jamming phenomenon. At the same time, the spring 18 can absorb the impact load of the reciprocating motion, ensure smooth transmission, and avoid rigid collision damage to the components.

[0047] Example 1: When the sticky and wet koji material is temporarily stored in the storage hopper 11 and agglomerates, forming a material arch in the discharge port area, the drive motor 12 drives the first connecting shaft 14 to rotate continuously. On the one hand, through the transmission sleeve 15 and the transmission shaft 16, the first dispersing paddle 19, the second dispersing paddle 110, and the third dispersing paddle 112 rotate synchronously to shear and disperse the agglomerated koji material in the central area, breaking the liquid bridge adhesion between particles. On the other hand, through the transmission of the first gear 51, the second gear 52, and the sun gear 53, the scraper 56 rotates in the opposite direction to scrape off the sticky material on the wall, preventing the adhesion layer from continuously thickening. At the same time, the fourth dispersing paddle 58 further disperses the edge ring area, achieving a full-section, blind-zone-free loosening treatment in the storage hopper 11. Meanwhile, the rotation of the No. 3 connecting shaft 57 is transmitted to the crank connecting rod 44 through the driving bevel gear 42 and the driven bevel gear 43, which drives the piston 45 and the connecting frame 46 to make vertical reciprocating motion, thereby pulling the No. 2 connecting shaft 17 and the transmission shaft 16 to reciprocate up and down along the transmission sleeve 15. This causes the No. 1 dispersing paddle 19, the No. 2 dispersing paddle 110 and the discharge auger 111 to move up and down synchronously while rotating, repeatedly piercing and disturbing the bridging material in the discharge port area, destroying the material arch structure, and ensuring the continuous and stable falling of the curved material. The up and down reciprocating motion of the discharge auger 111 can also prevent the auger blades from getting stuck with lumpy material, thus improving the discharge stability.

[0048] refer to Figure 1 , Figure 7 and Figure 8The quantitative feeding mechanism 3 includes a moving component 31, a leveling component 37, and a collection box 38. A rotating component 32 is installed at the horizontal movement output end of the moving component 31. A lifting component 33 is installed at the rotary output end of the rotating component 32. A tilting component 34 is installed at the vertical movement output end of the lifting component 33. A clamping component 35 is installed at the tilting output end of the tilting component 34. The clamping component 35 clamps and holds the volumetric metering box 36. Through multi-degree-of-freedom motion coordination, the receiving, leveling, transfer, and unloading actions of the volumetric metering box 36 are completed sequentially. The leveling component 37 is located above the horizontal movement path of the volumetric metering box 36 and consists of a fixed frame and a scraping plate connected to the fixed frame. The collection box 38 is correspondingly located below the scraping plate, and the bottom surface of the scraping plate is flush with the top surface of the volumetric metering box 36. When the metering box 36 filled with koji material is rotated by the rotating component 32, it is deflected to the side of the scraping component 37. Then, as the moving component 31 moves horizontally under the scraping plate, the scraping plate can scrape off the excess koji material that is higher than the top surface of the metering box, ensuring that the volume of koji material filled each time is accurate and consistent. The scraped-off excess material falls into the collection box 38 below for centralized recycling, avoiding material waste.

[0049] Working principle: At the start of operation, the mixed and moistened material from the upstream mixing process is continuously fed into the storage hopper 11 of the anti-caking mechanism 1 via the feeding mechanism 2 for temporary storage. The drive motor 12 is started, and the output of the drive motor 12 drives the first connecting shaft 14 to rotate synchronously. When the first connecting shaft 14 rotates, it drives the transmission sleeve 15 to rotate synchronously. Through the engagement of the limiting groove and the limiting protrusion, the transmission sleeve 15 drives the transmission shaft 16 and the second connecting shaft 17 to rotate synchronously in the circumferential direction. This causes the first dispersing paddle 19, the second dispersing paddle 110, and the third dispersing paddle 112 to rotate with the shaft, dispersing the material at different heights in the central area of ​​the storage hopper 11. Shearing force is applied to break the liquid bridge structure between particles and disperse agglomerated clumps. On the other hand, the first connecting shaft 14 drives the first gear 51 of the shaft to rotate synchronously. Through the intermediate transmission of the second gear 52, the sun gear 53 is driven to rotate in the opposite direction around the central axis along the annular slide rail 54. The scraper 56 on the outer edge of the sun gear 53 rotates in accordance with the rotation of the inner wall of the storage hopper 11, continuously scraping off the adhering clumps on the wall. At the same time, the third connecting shaft 57 at the bottom of the second gear 52 drives the fourth dispersing paddle 58 to rotate, supplementing the dispersing of the clumps in the annular area between the central dispersing area and the inner wall, thus achieving loosening and anti-caking treatment of the entire area inside the storage hopper 11.

[0050] During the dispersing operation, the driving bevel gear 42 at the bottom of the third connecting shaft 57 rotates synchronously with the shaft. Through meshing with the driven bevel gear 43, the vertical rotation is converted into horizontal rotation and transmitted to the crankshaft of the crank connecting rod 44. When the crankshaft rotates, it drives the piston 45 to move up and down in a straight line along the vertical guide of the mounting frame 41 via the connecting rod. The connecting frame 46 at the top of the piston 45 rises and falls synchronously, driving the second connecting shaft 17 and the transmission shaft 16 to slide back and forth along the axial direction of the transmission sleeve 15. This causes the first dispersing paddle 19, the second dispersing paddle 110 and the bottom discharge auger 111 to move up and down synchronously while rotating, repeatedly piercing and disturbing the material in the discharge port area, breaking up material arches, preventing sticky wet material from getting stuck and bridging in the shrinkage discharge section, and ensuring smooth material discharge. The spring 18 between the transmission shaft 16 and the transmission sleeve 15 can buffer the impact force of the reciprocating motion, ensuring a smooth and reliable transmission process.

[0051] After being loosened and broken up, the koji material, under its own weight and the forced conveying action of the discharge auger 111, gathers at the discharge pipe 13 at the bottom of the storage hopper 11. The control valve on the discharge pipe 13 is opened, and the koji material continues to fall to the quantitative feeding mechanism 3 below. At this time, the moving component 31 drives the fixed volume metering box 36 to move directly below the discharge pipe 13 to receive the material. After the koji material fills the fixed volume metering box 36, the rotating component 32 drives the fixed volume metering box 36 to rotate. Then, the moving component 31 drives the fixed volume metering box 36 to move along the horizontal path to the discharge station. When passing the leveling component 37, the scraper plate scrapes off the excess koji material that is higher than the top surface of the metering box. The remaining material falls into the collection box 38 for recycling, ensuring that the volume of koji material in each fixed volume metering box 36 is accurate and consistent.

[0052] After the volume-fixing and leveling are completed, the moving component 31 moves the volume-fixing metering box 36 to directly above the downstream pressing mold. The lifting component 33 lowers the volume-fixing metering box 36 to the corresponding unloading height. Then, the flipping component 34 flips the clamping component 35 and the volume-fixing metering box 36 together, accurately pouring the quantitative amount of material into the pressing mold cavity, completing one quantitative feeding cycle. After unloading, the flipping component 34 resets, the lifting component 33 rises, the rotating component 32 rotates, and the moving component 31 drives the volume-fixing metering box 36 back to the receiving station to enter the next feeding cycle.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A quantitative feeding device for preventing caking of koji material before pressing, comprising an anti-caking mechanism (1), wherein a feeding mechanism (2) is connected to the side of the anti-caking mechanism (1), and a quantitative feeding mechanism (3) is provided below the anti-caking mechanism (1), wherein the quantitative feeding mechanism (3) is used to quantitatively feed the koji material, characterized in that: The anti-caking mechanism (1) includes a storage hopper (11), a drive motor (12) is fixedly installed on the top of the storage hopper (11), and a discharge pipe (13) is connected to the bottom of the storage hopper (11); the output end of the drive motor (12) is fixedly connected to a first connecting shaft (14) downwards, and a caking dispersing component is driven to the bottom end of the first connecting shaft (14); a discharge auger (111) is fixedly connected to the bottom of the caking dispersing component; the discharge auger (111) is correspondingly arranged above the discharge pipe (13) for conveying the material downwards. The shaft of the first connecting shaft (14) is fixedly connected to an auxiliary dispersing mechanism (5). The auxiliary dispersing mechanism (5) is used to scrape off the lumps attached to the inner wall of the storage hopper (11) and disperse the lumps in the ring area between the dispersing component and the inner wall of the storage hopper (11). The device also includes a reciprocating arch-breaking mechanism (4), which is used to drive the agglomeration dispersing component and the discharge auger (111) to move up and down along the axial direction to break the bridging phenomenon of the curved material during quantitative conveying.

2. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 1, characterized in that, The agglomeration dispersing component includes a transmission sleeve (15) and a transmission shaft (16). The transmission shaft (16) is coaxially and slidably inserted inside the transmission sleeve (15). A spring (18) is provided between the inner top wall of the transmission sleeve (15) and the top end of the transmission shaft (16). The two ends of the spring (18) are fixedly connected to the transmission sleeve (15) and the transmission shaft (16) respectively. The bottom end of the drive shaft (16) is fixedly connected to the second connecting shaft (17), and the bottom end of the second connecting shaft (17) is fixedly connected to the discharge auger (111); the outer wall of the drive sleeve (15) is fixedly installed with the third dispersing paddle (112), and the shaft of the second connecting shaft (17) is fixedly installed with the first dispersing paddle (19) and the second dispersing paddle (110) from top to bottom.

3. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 2, characterized in that, The inner wall of the transmission sleeve (15) is provided with a limiting groove extending along the axial direction, and the outer wall of the transmission shaft (16) is provided with a limiting protrusion that slides and adapts to the limiting groove; the limiting protrusion cooperates with the limiting groove so that the transmission shaft (16) and the transmission sleeve (15) rotate synchronously in the circumference and slide relative to each other in the axial direction.

4. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 1, characterized in that, The auxiliary dispersing mechanism (5) includes a first gear (51), a second gear (52), a sun gear (53), and an annular slide rail (54). The first gear (51) is fixedly sleeved on the shaft of the first connecting shaft (14), the annular slide rail (54) is fixedly installed on the inner top wall of the storage hopper (11), and an annular slider (55) is slidably engaged in the annular slide rail (54). The lower end face of the annular slider (55) is fixedly connected to the upper end face of the sun gear (53). The second gear (52) is meshed between the first gear (51) and the sun gear (53). The upper end of the axle of the second gear (52) is rotatably connected to the inner top wall of the storage hopper (11). The lower end face of the second gear (52) is fixedly connected to the third connecting shaft (57). The shaft body of the third connecting shaft (57) is fixedly installed with the fourth dispersing paddle (58). The outer edge of the sun gear (53) is provided with a plurality of scraper plates (56) arranged in a circumferential array, and the scraper plates (56) are attached to the inner wall of the storage hopper (11).

5. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 4, characterized in that, The reciprocating arch-breaking mechanism (4) includes a fixed mounting frame (41), in which a transmission component and a reciprocating component are integrated; the power input end of the transmission component is fixedly connected to the bottom end of the No. 3 connecting shaft (57), and the power output end of the transmission component is connected to the reciprocating component; the output end of the reciprocating component is rotatably connected to the lower part of the agglomeration dispersing component, which is used to drive the agglomeration dispersing component and the discharge auger (111) to perform up-and-down reciprocating motion.

6. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 5, characterized in that, The transmission assembly includes a driving bevel gear (42) and a driven bevel gear (43) that mesh with each other; both the driving bevel gear (42) and the driven bevel gear (43) are rotatably supported on the mounting frame (41), and the center of the top surface of the driving bevel gear (42) is coaxially fixedly connected to the bottom end of the third connecting shaft (57).

7. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 5, characterized in that, The reciprocating assembly includes a crank connecting rod (44), the crank shaft of which is rotatably mounted on a mounting bracket (41), and the crank shaft is coaxially fixedly connected to the driven bevel gear (43); a piston (45) is hinged to the connecting rod end of the crank connecting rod (44), and the piston (45) is slidably mounted in the mounting bracket (41) in the vertical direction; The piston (45) is fixedly connected to a connecting frame (46), which slides upward through the mounting frame (41), and the upper end of the connecting frame (46) is rotatably connected to the shaft of the second connecting shaft (17).

8. The quantitative feeding device for preventing the koji material from clumping and agglomerating before pressing according to claim 1, characterized in that, The quantitative feeding mechanism (3) includes a moving component (31), a leveling component (37), and a collection box (38). The horizontal motion output end of the moving component (31) is equipped with a rotating component (32), the rotary output end of the rotating component (32) is equipped with a lifting component (33), the vertical motion output end of the lifting component (33) is equipped with a flipping component (34), the flipping output end of the flipping component (34) is equipped with a clamping component (35), and the clamping component (35) clamps and holds a fixed-volume metering box (36). The leveling component (37) is located above the horizontal movement path of the volumetric metering box (36). The leveling component (37) consists of a fixed frame and a scraping plate connected to the fixed frame. The collection box (38) is located below the scraping plate, and the bottom surface of the scraping plate is level with the top surface of the volumetric metering box (36).

9. The quantitative feeding device for loosening and preventing agglomeration of koji material before pressing according to claim 1, characterized in that, A control valve is connected in series in the body of the discharge pipe (13).

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