Raw material centrifugal crushing and decomposing device for coffee production

By using a centrifugal crushing and decomposition device, the combination of centrifugal force and impact components is used to achieve full and uniform decomposition of materials in coffee production, solving the problems of low energy utilization and poor consistency in existing technologies, and improving production efficiency and product quality.

CN121571253APending Publication Date: 2026-02-27GANZHOU YONGKANG HIGH-TECH CO LTD
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Patent Information

Application Number
CN202511773608.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

Existing coffee production equipment has low energy utilization and insufficient crushing, resulting in poor product consistency. Furthermore, repeated crushing operations increase energy consumption and time, making it difficult to meet the efficiency and consistency requirements of large-scale production.

Method used

The centrifugal crushing and decomposition device utilizes centrifugal force to drive material projection and impact, combined with the agitation of planetary gears in the conical crushing disc and the sieve cylinder, to achieve full and uniform decomposition of the material. The closed-loop circulation mechanism of the screen and the spiral feed rod ensures the uniformity and fineness of the material.

Benefits of technology

It improves single-processing efficiency and product consistency, reduces material waste, ensures continuous and stable operation of the equipment, avoids efficiency decline due to overload or blockage, and achieves a highly efficient and uniform crushing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of centrifugal crushing, in particular to a raw material centrifugal crushing and decomposing device for coffee production. The raw material centrifugal crushing and decomposing device for coffee production comprises a supporting frame, a conical material frame, a barrel-shaped material frame, a blanking barrel and the like, the conical material frame is fixedly connected to the inner side of the upper portion of the supporting frame, the top of the conical material frame is connected and communicated with the barrel-shaped material frame, and the blanking barrel is installed on the upper side in the barrel-shaped material frame. A core crushing mechanism of the device is driven based on centrifugal force, and materials firstly violently impact the impact piece under the action of the high-speed centrifugal paddle; then, the materials are accelerated and thrown into a grinding gap for shearing and grinding under the action of centrifugal force along the inclined surface of the conical crushing disc; according to the design, the centrifugal kinetic energy depth penetrates through the whole crushing process, the energy utilization rate is high, it is guaranteed that the materials are fully and evenly decomposed, and the single-time processing efficiency and the product consistency are effectively improved.
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Description

Technical Field

[0001] This invention relates to the field of centrifugal crushing technology, and in particular to a centrifugal crushing and decomposition device for raw materials used in coffee production. Background Technology

[0002] In coffee production, the effectiveness of raw material crushing directly impacts subsequent processing and the quality of the final product. Currently, most mainstream crushing devices employ mechanical crushing or hammer milling principles. These devices often have significant limitations: mechanical crushing relies on extrusion force, which can easily lead to excessive localized stress and over-crushing of the material, while also making it difficult to ensure particle uniformity; some hard raw materials may even be incompletely crushed. While hammer milling achieves crushing through high-speed impact, the energy is concentrated in a single impact, lacking sustained kinetic energy transfer. This results in low energy utilization and limited single-batch processing capacity, failing to meet the efficiency and consistency requirements of large-scale production.

[0003] In addition, traditional equipment often results in uneven heating in the subsequent roasting process due to insufficient crushing of coffee raw materials, which affects the release of coffee flavor compounds. At the same time, repeated crushing operations also increase energy consumption and production time, which restricts the improvement of overall production efficiency.

[0004] Therefore, there is an urgent need for a high-efficiency crushing device that can deeply integrate energy throughout the entire crushing process and achieve full and uniform decomposition of materials, in order to solve the problems of low energy utilization, insufficient processing efficiency and poor product consistency in existing technologies. Summary of the Invention

[0005] To overcome the shortcomings mentioned in the background art, the present invention provides a centrifugal crushing and decomposition device for coffee production raw materials.

[0006] A centrifugal crushing and decomposition device for coffee production raw materials includes a support frame, a conical material frame, a cylindrical material frame, a discharge cylinder, a diversion frame, a discharge frame, a centrifugal impeller, a crushing disc, an impactor, a drive motor, and a main shaft. The conical material frame is fixedly connected to the inner upper part of the support frame. The top of the conical material frame is connected to and communicates with the cylindrical material frame. A discharge cylinder is installed on the upper side of the cylindrical material frame. The bottom of the discharge cylinder has a funnel structure with a discharge port in its center. The bottom of the conical material frame is connected to and communicates with the diversion frame, which forms four diversion chambers. The bottom of the diversion frame is connected to and communicates with the discharge frame. The material frame and discharge frame are connected to four diversion chambers. A drive motor is installed in the middle of the top of the discharge frame. The output shaft of the drive motor is connected to the main shaft. The main shaft passes through the internal space of the diversion frame, the conical material frame, the cylindrical material frame and the discharge cylinder from bottom to top. Its top end is rotatably connected to the top center of the discharge cylinder. A centrifugal paddle is fixedly connected to the upper side of the main shaft. A crushing disc is fixedly connected to the bottom of the centrifugal paddle. The crushing disc is located inside the conical material frame and forms an annular crushing gap with the inner wall of the conical material frame. Multiple impactors are connected at intervals along the circumferential direction on the inner side wall of the cylindrical material frame.

[0007] Optionally, the working surfaces of the centrifugal impeller, crushing disc, and impact components are coated with a tungsten carbide-based hard alloy coating.

[0008] Optionally, the difference between the cone angle of the inner wall of the conical frame and the cone angle of the crushing disc is between 8° and 15°.

[0009] Optionally, it also includes a reflux cylinder, a screen, a filter plate, and a screw feeder. The reflux cylinder is fixedly connected to the center of the conical material frame. The reflux cylinder is located outside the main shaft. The axial length of the reflux cylinder passes through the centrifugal impeller and the crushing disc, and its bottom end extends into the inner cavity of the diversion frame. The upper end of the reflux cylinder has multiple discharge ports spaced apart circumferentially. The discharge ports are located above the centrifugal impeller. The lower end of the reflux cylinder also has multiple feed ports spaced apart circumferentially. The feed ports are located above the four diversion chambers of the diversion frame. A filter plate is fixedly connected to the upper side of the diversion frame. A screen is rotatably connected to the inner side of the filter plate. The center of the screen is fixedly connected to the main shaft and located below the feed ports. A screw feeder is fixedly connected to the main shaft. The screw feeder is located in the inner cavity of the reflux cylinder and forms a sealed rotational fit with the inner wall of the reflux cylinder.

[0010] Optionally, it also includes a worm, a worm wheel, a drive shaft, a funnel, and a lever. Both sides of the diversion frame are rotatably connected to the drive shaft. The axial ends of each drive shaft extend into the corresponding diversion chamber of the diversion frame. A worm wheel is fixedly installed in the middle of each drive shaft. A worm is fixedly connected to the lower end of the main shaft. The worm meshes with the worm wheels on both sides. A funnel is fixedly installed in each of the four diversion chambers of the diversion frame. Multiple through holes are evenly spaced on the outer surface of the funnel. A through groove is opened on the upper part of the funnel. The through groove communicates with the upper chamber of the diversion frame. The axial ends of each drive shaft extend into the funnel on the corresponding side and are fixedly connected to a lever.

[0011] Optionally, it also includes an agitator, paddles, a gear ring, planetary gears, and a transmission gear. The agitator is rotatably connected to the inner side of the sieve. Multiple paddles are evenly spaced along the circumference of the agitator. The agitator and paddles are in clearance fit with the inner wall of the sieve. A gear ring is fixedly installed on the outer wall of the sieve. Three planetary gears are rotatably connected to the outer wall of the agitator at intervals. The three planetary gears mesh with each other and simultaneously mesh with the outer gear ring. The front and rear ends of the transmission shaft pass through the sieve and are fixedly connected to a transmission gear. The transmission gear meshes with the three planetary gears simultaneously.

[0012] Optionally, the portion of the agitator that contacts the inner wall of the funnel is made of food-grade flexible silicone material and maintains elastic contact with the inner wall of the funnel.

[0013] Optionally, it also includes a feeding frame, a sealing disc, and a bidirectional screw. The feeding frame is fixedly connected to the bottom of the feeding cylinder below its central feeding port. Multiple feeding channels are evenly spaced along the circumference on the outer peripheral wall of the feeding frame. A bidirectional screw is fixedly connected to the upper part of the main shaft inside the feeding frame. A sealing disc is threaded onto the bidirectional screw, and the sealing disc is slidably connected to the inner wall of the feeding frame.

[0014] The beneficial effects of this invention are: 1. The core crushing mechanism of this device is based on centrifugal force. The material is first thrown under the action of high-speed centrifugal paddle and violently impacts the circumferential impactor; then, along the inclined surface of the conical crushing disc, it is accelerated and thrown into the grinding gap for shearing and grinding under the action of centrifugal force; finally, it is thrown and impacted again by centrifugal force in the sieve. This design deeply integrates centrifugal kinetic energy throughout the entire crushing process, with high energy utilization, ensuring that the material is fully and uniformly decomposed, effectively improving the single processing efficiency and product consistency.

[0015] 2. The screen and filter plate screen the material after secondary crushing. The qualified fine material is discharged directly, while the coarse material is collected in the center and lifted by the screw feeder to the centrifugal paddle area for re-crushing. This closed-loop circulation mechanism effectively avoids the discharge of coarse material mixed together, ensures the fineness of the final product, and reduces material waste.

[0016] 3. In the final discharge section of the sieve, the planetary gear drives the agitator and the paddle to perform a compound planetary motion, continuously scraping and agitating the material on the sieve wall and near the through hole. This design can effectively prevent water-containing, oily or fibrous materials from sticking together and clogging the through hole, ensuring the continuous and stable operation of the equipment, especially the discharge section.

[0017] 4. The sealing disc is driven by a bidirectional screw to reciprocate within the feeding rack, thereby achieving the periodic opening and closing of the feeding port. This converts continuous feeding into intermittent quantitative feeding, ensuring that the material flow rate entering the main crushing zone is uniform and controllable, and avoiding the efficiency reduction or motor stalling caused by instantaneous overload of the centrifugal paddle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the cylindrical material frame, the material drop cylinder, and the diversion frame of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the centrifugal impeller, crushing disc, and impactor components of the present invention.

[0021] Figure 4 This is a schematic diagram of the planar structure of the conical material frame, crushing disc, and main shaft of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the components of the present invention, such as the reflux cylinder, screen, and filter plate.

[0023] Figure 6 This is a three-dimensional structural diagram of the spiral feed rod, inlet, and outlet components of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the screen and main shaft components of the present invention.

[0025] Figure 8 This is a three-dimensional structural diagram of the drive motor, worm gear, and shunt frame components of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the worm gear, worm wheel, and transmission shaft components of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the drive shaft, the sluice cylinder, and the gear ring of the present invention.

[0028] Figure 11 This is a breakdown diagram of the components of the present invention, including the agitator, the stirring frame, and the transmission gear.

[0029] Figure 12 This is a three-dimensional structural diagram of the agitator, drive shaft, and sieve of the present invention.

[0030] Figure 13 This is a schematic diagram of the planar structure of the stirring frame, the lever, and the lever frame of the present invention.

[0031] Figure 14 This is a three-dimensional structural diagram of the components of the present invention, including the material discharge cylinder, the material feeding frame, and the sealing disc.

[0032] Figure 15 This is a three-dimensional structural diagram of the main shaft, unloading rack, and sealing disc of the present invention.

[0033] Figure 16 This is a three-dimensional structural diagram of the sealing disc, bidirectional screw, and main shaft components of the present invention.

[0034] The markings in the attached diagram are as follows: 1: Support frame, 101: Conical material frame, 102: Cylindrical material frame, 103: Drop cylinder, 104: Diverter frame, 105: Discharge frame, 201: Centrifugal paddle, 202: Crushing disc, 203: Impact component, 204: Drive motor, 205: Main shaft, 301: Return cylinder, 302: Screen, 303: Filter plate, 304: Spiral feed rod, 305: Feed inlet, 306: Discharge outlet, 401: Worm gear, 402: Worm wheel, 403: Drive shaft, 404: Strainer, 405: Agitator frame, 501: Stirring frame, 5011: Agitator blade, 502: Gear ring, 503: Planetary gear, 504: Transmission gear, 601: Discharge frame, 602: Sealing disc, 603: Bidirectional screw. Detailed Implementation

[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] Example 1: A centrifugal crushing and decomposition device for coffee production, such as... Figures 1-4As shown, the system includes a support frame 1, a conical material frame 101, a cylindrical material frame 102, a discharge cylinder 103, a diversion frame 104, a discharge frame 105, a centrifugal paddle 201, a crushing disc 202, an impactor 203, a drive motor 204, and a main shaft 205. The conical material frame 101 is fixedly connected to the inner upper part of the support frame 1. The top of the conical material frame 101 is connected to and communicates with the cylindrical material frame 102. The discharge cylinder 103 is bolted to the upper side of the cylindrical material frame 102. The bottom of the discharge cylinder 103 has a funnel-shaped structure with a discharge port in its center. The bottom of the conical material frame 101 is connected to and communicates with the diversion frame 104, which forms a discharge port within the diversion frame 104. Four diversion chambers are provided. The bottom of the diversion frame 104 is connected to and communicates with the discharge frame 105, which serves as the collection and discharge outlet for the final crushed material. The discharge frame 105 is connected to the four diversion chambers. A drive motor 204 is bolted to the middle of the top of the discharge frame 105. The output shaft of the drive motor 204 is connected to the main shaft 205. The main shaft 205 passes through the internal space of the diversion frame 104, the conical material frame 101, the cylindrical material frame 102, and the discharge cylinder 103 from bottom to top, and its top end is rotatably connected to the top center of the discharge cylinder 103. A centrifugal paddle 20 is fixedly connected to the upper side of the main shaft 205 in the area of ​​the inner chamber of the cylindrical material frame 102. 1. A crushing disc 202 with an inverted conical structure is fixedly connected to the bottom of the centrifugal impeller 201. The crushing disc 202 is located inside the conical material frame 101 and forms an annular crushing gap with the inner wall of the conical material frame 101. The difference between the cone angle of the inner wall of the conical material frame 101 and the cone angle of the crushing disc 202 is between 8° and 15°. This optimized cone angle difference design can form a gradually narrowing crushing channel between the two, so that the material is subjected to continuous and gradually increasing compression and shearing forces, avoiding congestion or uneven crushing caused by abrupt gap changes. The crushing process is more stable and efficient. The inner sidewall of the cylindrical material frame 102 corresponds to the outer sidewall of the centrifugal impeller 201. The area around the centrifugal impeller 201 is equipped with multiple impactors 203 connected at intervals along the circumference. The impactors 203 cooperate with the centrifugal impeller 201 to achieve primary impact crushing of materials. The outer surface of the crushing disc 202 is provided with multiple grinding strips at intervals along the circumference, and the inner wall of the conical material frame 101 is also provided with multiple friction strips at corresponding positions. The working surfaces of the centrifugal impeller 201, the crushing disc 202 and the impactors 203 are coated with a tungsten carbide-based hard alloy coating, which greatly improves the wear resistance and corrosion resistance of key crushing components when grinding materials (especially hard dark roast coffee beans), significantly extends the service life of the equipment under high pressure conditions and extends the maintenance cycle.

[0037] When using this device to crush and decompose coffee production materials, the material to be processed is first fed into the feeding cylinder 103. The material, guided by the funnel structure at its bottom, is uniformly and controllably fed into the inner cavity of the cylindrical material frame 102 through the central feeding port. Then, the drive motor 204 is started, driving the main shaft 205 to rotate at high speed. This causes the centrifugal paddle 201, fixed to the main shaft 205 and located inside the cylindrical material frame 102, to rotate synchronously. When the material falls into the area of ​​the high-speed rotating centrifugal paddle 201, it is subjected to a strong centrifugal force and is rapidly thrown to the periphery, colliding violently with multiple impactors 203 evenly distributed circumferentially inside the cylindrical material frame 102, thereby achieving… The material undergoes initial impact crushing. After primary crushing, the material continues to fall under gravity and enters the annular crushing gap formed by the conical material frame 101 and the crushing disc 202. The crushing disc 202 rotates continuously with the main shaft 205. The grinding strips on its outer surface and the friction strips on the inner wall of the conical material frame 101 interweave, shear, and grind each other, thoroughly crushing the material passing through the gap. After the crushed material reaches the predetermined fineness, it is discharged from the crushing gap and falls into the diversion frame 104. It is evenly dispersed and buffered through its four internal diversion chambers, and finally flows into the discharge frame 105 and is discharged uniformly from its bottom, completing the continuous and efficient centrifugal crushing and decomposition operation of the coffee material.

[0038] Example 2: Based on Example 1, such as Figure 2 and Figures 5-7 As shown, it also includes a reflux cylinder 301, a screen 302, a filter plate 303, and a spiral feed rod 304. The reflux cylinder 301 is fixedly connected to the middle of the conical material frame 101. The reflux cylinder 301 is located outside the main shaft 205. The axial length of the reflux cylinder 301 extends through the centrifugal impeller 201 and the crushing disc 202, and its bottom end extends into the inner cavity of the diversion frame 104. The upper end of the reflux cylinder 301 is provided with multiple discharge ports 306 spaced apart along the circumference. The discharge ports 306 are located above the centrifugal impeller 201. The lower end of the reflux cylinder 301 is also provided with multiple feed ports 305 spaced apart along the circumference. The position is above the four diversion chambers of the diversion frame 104. A filter plate 303 is fixedly connected to the upper side of the diversion frame 104. A screen 302 is rotatably connected to the inner side of the filter plate 303. The center of the screen 302 is fixedly connected to the main shaft 205 and is located below the feed inlet 305. Both the filter plate 303 and the screen 302 are designed as micro-funnel-shaped structures, with the middle part lower than the outer periphery. This structure facilitates the material to gather in the central area. A spiral feed rod 304 is fixedly connected to the main shaft 205. The spiral feed rod 304 is located in the inner cavity of the return cylinder 301 and forms a sealed rotational fit with the inner wall of the return cylinder 301.

[0039] After secondary crushing by the crushing gap between the conical material frame 101 and the crushing disc 202, the material falls into the diversion frame 104 and accumulates on the screen 302 and filter plate 303. The screen 302, which rotates with the main shaft 205, performs rotary screening of the material. The qualified fine material with a particle size smaller than the filter holes of the screen 302 passes through the screen holes and falls into the four diversion chambers of the diversion frame 104. Finally, it is discharged through the discharge frame 105 and collected. The coarse material with a particle size larger than the filter holes is trapped on the surface of the screen 302 and gradually gathers towards the center under its micro-funnel structure and rotation. The coarse material gathered in the center then enters the return cylinder 301 through the feed inlet 305. The rotating spiral feed rod 304 conveys these insufficiently crushed coarse materials upward. Finally, the material is discharged through the upper discharge port 306 and falls back onto the centrifugal paddle 201, thus re-entering the crushing process for cyclic crushing until the predetermined particle size requirement is met.

[0040] like Figures 8-13 As shown, it also includes a worm gear 401, a worm wheel 402, a drive shaft 403, a funnel 404, and a lever frame 405. Drive shafts 403 are rotatably connected through the left and right sides of the diversion frame 104. Both ends of each drive shaft 403 extend into the corresponding diversion chamber of the diversion frame 104. A worm wheel 402 is fixedly installed in the middle of each drive shaft 403. A worm gear 401 is fixedly connected to the lower end of the main shaft 205 corresponding to the position of the worm wheel 402. The worm gear 401 is connected to the worm wheels on the left and right sides. 402 mesh simultaneously to form a power transmission mechanism. A funnel 404 is fixedly installed in each of the four distribution chambers of the distribution frame 104. Multiple through holes are evenly spaced on the outer surface of the funnel 404, and an annular discharge chamber is formed between the outer wall of the funnel 404 and the inner wall of its respective distribution chamber. A through groove is provided at the top of the funnel 404, which communicates with the upper chamber of the distribution frame 104, allowing the screened material to enter the funnel 404 through the through groove. Each drive shaft 40... Both ends of shaft 3 extend into the corresponding side of the funnel 404 and are fixedly connected to actuating frames 405. Qualified materials, after being screened by screen 302, fall into the diversion frame 104 and enter through the through-slots at the top of each funnel 404. When the main shaft 205 rotates, it synchronously drives the worm gear 401 to rotate. The worm gear 401 drives the worm wheels 402 on both sides and the transmission shaft 403 to rotate at a certain transmission ratio, thereby causing the actuating frames 405 located in each funnel 404 to rotate. The rotating actuating frames... 405 agitates and throws the material inside the sieve cylinder 404, causing it to violently impact the inner wall of the sieve cylinder 404, thereby achieving the third fine crushing and grinding before discharge. The fully crushed fine material is thrown out through the through hole on the wall of the sieve cylinder 404 under the action of centrifugal force and impact, and enters the annular discharge chamber outside it. Finally, it flows into the discharge frame 105 and is discharged uniformly. This structure realizes the final crushing and forced discharge of the material, effectively ensuring the uniformity and consistency of the discharge particle size.

[0041] like Figures 10-13 As shown, it also includes a stirring frame 501, a paddle 5011, a gear ring 502, a planetary gear 503, and a transmission gear 504. The stirring frame 501 is rotatably connected to the inner side of the sieve cylinder 404 via bearings. Multiple paddles 5011 are evenly spaced along the circumference of the stirring frame 501. Both the stirring frame 501 and the paddles 5011 maintain a clearance fit with the inner wall of the sieve cylinder 404. The part of the stirring frame 501 that contacts the inner wall of the sieve cylinder 404 is made of food-grade flexible silicone material and is in contact with the inner wall of the sieve cylinder 404. The wall maintains elastic contact, allowing the agitator 501 to more effectively scrape away fine powder or oily substances firmly adhering to the cylinder wall during rotation, while avoiding wear caused by rigid scraping to the inner wall of the equipment. Gear rings 502 are fixedly installed on the outer walls of the inlet cylinder 404 in the front-rear direction. Three planetary gears 503 are rotatably connected to the outer walls of the agitator 501 in the front-rear direction via bearings. The three planetary gears 503 mesh with each other and simultaneously mesh with the outer gear rings 502. The drive shaft 403 passes through the inlet cylinder at both ends. A drive gear 504 is keyed to the cylinder 404. This drive gear 504 meshes simultaneously with three planetary gears 503. When the drive shaft 403 rotates, it drives the drive gear 504 to rotate synchronously, and drives the three planetary gears 503 to rotate. Since the planetary gears 503 also mesh with the fixed gear ring 502, they will generate a revolution motion while rotating, thereby driving the entire agitator 501 and its paddles 5011 to perform planetary rotation around the axis of the cylinder 404. The rotating agitator 501 continuously scrapes and moves the material adhering to the inner wall of the sieve cylinder 404 and blocking the through holes, effectively preventing the through holes from becoming blocked and ensuring smooth material discharge. At the same time, this combined motion significantly enhances the shearing and grinding effect on the material, and works in conjunction with the paddle 5011 to continuously turn over and throw the material accumulated at the bottom, increasing the frequency and energy of the impact between the material and the inner wall of the sieve cylinder 404, thereby greatly improving the final fine crushing effect and the uniformity of the material particle size in the sieve cylinder 404.

[0042] like Figure 2 and Figures 14-16As shown, the device also includes a feeding frame 601, a sealing disc 602, and a bidirectional screw 603. The feeding frame 601 is bolted to the bottom of the feeding cylinder 103 below its central feeding port. Multiple feeding channels are evenly spaced along the circumference of the outer peripheral wall of the feeding frame 601. The upper part of the main shaft 205 is fixedly connected to the bidirectional screw 603 inside the feeding frame 601. The sealing disc 602 is threaded onto the bidirectional screw 603. The sealing disc 602 also forms a sliding connection with the inner wall of the feeding frame 601. When the device is stopped, the sealing disc 602 is in the upper position under the action of the threads of the bidirectional screw 603, and closes the top port of the feeding frame 601, thereby blocking the passage between the feeding cylinder 103 and the cylindrical material frame 102. When the device is started, the main shaft 205 rotates and drives the bidirectional screw 603 to rotate. The screw 603 rotates synchronously. Based on the thread characteristics of the bidirectional screw 603, the sealing disc 602 will make continuous reciprocating lifting and lowering motion along its axis. When the sealing disc 602 moves downward to a position where its disc surface is lower than the material feeding channel of the feeding rack 601, the material in the dropping cylinder 103 can fall into the cylindrical material frame 102 below through the material feeding channel and enter the subsequent crushing process. When the sealing disc 602 moves upward and re-closes the top port of the feeding rack 601, the feeding process is interrupted. Through the continuous reciprocating motion of the sealing disc 602, the material is fed intermittently, quantitatively, and controllably. This mechanism effectively ensures the uniformity and stability of the material processed by the centrifugal paddle 201, avoids problems such as equipment overload, blockage, or decreased crushing efficiency caused by excessive feeding at one time, and ensures the continuity and efficiency of the crushing operation.

Claims

1. A raw material centrifugal crushing and decomposing apparatus for coffee production, characterized by: The utility model relates to a kind of centrifugal feeders, including support frame (1), conical material frame (101), cylindrical material frame (102), blanking cylinder (103), flow divider frame (104), discharge frame (105), centrifugal paddle (201), broken disc (202), impact piece (203), driving motor (204) and main shaft (205), conical material frame (101) is fixedly connected in the upper inner side of support frame (1), conical material frame (101) top is connected and is communicated with cylindrical material frame (102), blanking cylinder (103) is installed in the upper side in cylindrical material frame (102), blanking cylinder (103) bottom is funnel structure, wherein center is provided with blanking port, conical material frame (101) bottom is connected and is communicated with flow divider frame (104), four flow divider chambers are formed in flow divider frame (104), flow divider frame (104) bottom is connected and is communicated with discharge frame (105), discharge frame (105) is connected with four flow divider chambers, discharge frame (105) top middle is installed with driving motor (204), driving motor (204) output shaft is connected with main shaft (205), main shaft (205) is from below and upwards in succession and penetrates the internal space of flow divider frame (104), conical material frame (101), cylindrical material frame (102) and blanking cylinder (103), and its top end is rotatably connected with the top center of blanking cylinder (103), centrifugal paddle (201) is fixedly connected on the upper side of main shaft (205), broken disc (202) is fixedly connected on the bottom of centrifugal paddle (201), broken disc (202) is located in conical material frame (101) and is formed annular broken gap between the inner wall of conical material frame (101), and cylindrical material frame (102) inner wall is connected with multiple impact piece (203) in the circumferential direction.

2. The raw material centrifugal crushing and decomposing device for coffee production according to claim 1, characterized in that: The working surface of centrifugal paddle (201), broken disc (202) and impact piece (203) is coated with tungsten carbide-based hard alloy coating.

3. The raw material centrifugal crushing and decomposing device for coffee production according to claim 2, characterized in that: The difference between the taper angle of the inner wall of conical material frame (101) and the taper angle of broken disc (202) is between 8° to 15°.

4. The raw material centrifugal crushing and decomposing device for coffee production according to claim 3, characterized in that: The application also comprises a reflux cylinder (301), a screen (302), a filter plate (303) and a spiral feeding rod (304), the middle part of the conical material frame (101) is fixedly connected with the reflux cylinder (301), the reflux cylinder (301) is located outside the main shaft (205), the axial length of the reflux cylinder (301) penetrates the centrifugal paddle (201) and the crushing disc (202), and the bottom end of the reflux cylinder (301) extends into the inner cavity of the shunt frame (104), a plurality of discharge ports (306) are arranged at the upper end of the reflux cylinder (301) and are spaced apart in the circumferential direction, the discharge ports (306) are located above the centrifugal paddle (201), a plurality of feeding ports (305) are also arranged at the lower end of the reflux cylinder (301) and are spaced apart in the circumferential direction, the position of the feeding port (305) is above the four shunt chambers of the shunt frame (104), the upper side of the shunt frame (104) is fixedly connected with the filter plate (303), the inner side of the filter plate (303) is rotatably connected with the screen (302), the center of the screen (302) is fixedly connected with the main shaft (205) and is located below the feeding port (305), the main shaft (205) is fixedly connected with the spiral feeding rod (304), the spiral feeding rod (304) is located in the inner cavity of the reflux cylinder (301) and forms a sealed rotary connection with the inner wall of the reflux cylinder (301).

5. A raw material centrifugal crushing and decomposing apparatus for coffee production according to claim 4, characterized in that: The application also comprises a worm (401), a worm wheel (402), a transmission shaft (403), a leakage cylinder (404) and a stirring frame (405), the transmission shaft (403) is rotatably connected to the two sides of the shunt frame (104) in a penetrating manner, the axial both ends of each transmission shaft (403) extend into the corresponding shunt chamber of the shunt frame (104), the middle part of each transmission shaft (403) is fixedly installed with the worm wheel (402), the lower end of the main shaft (205) is fixedly connected with the worm (401), the worm (401) is engaged with the worm wheels (402) on the two sides, one leakage cylinder (404) is fixedly installed in each of the four shunt chambers of the shunt frame (104), a plurality of through holes are uniformly and spaced apart arranged on the outer surface of the leakage cylinder (404), a through groove is arranged on the upper part of the leakage cylinder (404) and is communicated with the upper chamber of the shunt frame (104), the axial both ends of each transmission shaft (403) extend into the inside of the corresponding leakage cylinder (404) and are fixedly connected with the stirring frame (405).

6. A raw material centrifugal crushing and decomposing apparatus for coffee production according to claim 5, characterized in that: The stirring frame (501), the stirring piece (5011), the gear ring (502), the planetary gear (503) and the transmission gear (504) are further included, the stirring frame (501) is rotationally connected to the inner side of the leakage cylinder (404), a plurality of stirring pieces (5011) are uniformly and spacedly installed on the stirring frame (501) in the circumferential direction, the stirring frame (501) and the stirring piece (5011) are in gap cooperation with the inner wall of the leakage cylinder (404), the gear ring (502) is fixedly installed on the outer side wall of the leakage cylinder (404), three planetary gears (503) are rotationally connected to the outer side wall of the stirring frame (501) at intervals, the three planetary gears (503) are in meshing with each other and are simultaneously in meshing with the gear ring (502) on the outer side, the transmission shaft (403) penetrates through the leakage cylinder (404) at the front end and the rear end and is fixedly connected with the transmission gear (504), and the transmission gear (504) is simultaneously in meshing with the three planetary gears (503).

7. A raw material centrifugal crushing and decomposing apparatus for coffee production according to claim 6, characterized in that: The part of the stirring frame (501) in contact with the inner wall of the leakage cylinder (404) is made of a food-grade flexible silica gel material and is in elastic contact with the inner wall of the leakage cylinder (404).

8. A raw material centrifugal crushing and decomposing apparatus for coffee production according to claim 7, characterized in that: The blanking frame (601), the sealing disc (602) and the bidirectional screw (603) are further included, the blanking frame (601) is fixedly connected to the bottom of the blanking cylinder (103) at a position below the center blanking opening, a plurality of blanking channels are uniformly and spacedly formed on the outer peripheral wall of the blanking frame (601) in the circumferential direction, the bidirectional screw (603) is fixedly connected to the space inside the blanking frame (601) at the upper part of the main shaft (205), the sealing disc (602) is in threaded cooperation with the bidirectional screw (603), and the sealing disc (602) is simultaneously in sliding connection with the inner wall of the blanking frame (601).