An automated coffee capsule filling and sealing machine

Abstract

The application discloses an automatic coffee capsule filling and sealing machine, which comprises a filling mechanism, a powder compacting mechanism, a sealing film punching and sealing mechanism and a vacuumizing and nitrogen charging mechanism, and the four mechanisms are combined to play a role; the powder compacting mechanism utilizes the downward pressure and rotating force of a powder pressing head and adjusts the powder pressure through the pressure of a powder rotating cylinder, so that the capsule coffee is compacted; compared with a traditional structure, the sealing film punching and sealing mechanism has the following advantages: first, a knife is hidden in a base, so that an operator will not be hurt during maintenance or operation; second, the position of the sealing head heating system start-stop is separated from the sealing film cutting device during each cycle operation process; and the vacuumizing and nitrogen charging mechanism performs vacuumizing on a capsule cup filled with materials, directly sucks away air and charges nitrogen into the capsule cup, so that an almost oxygen-free environment in the capsule cup is realized.

Description

Technical Field

[0001] This invention relates to the field of coffee capsule filling and sealing, specifically to an automated coffee capsule filling and sealing machine. Background Technology

[0002] Capsule coffee is extracted using a specialized high-temperature, high-pressure capsule coffee machine. The compaction of the material inside the capsule has a significant impact on the taste of the extracted coffee. Appropriate compaction allows water to fully penetrate the coffee grounds, extracting the flavor and aroma, ensuring a rich and consistent coffee taste. However, the compaction must be moderate. Over-compaction increases the resistance of the coffee puck, prolonging the water penetration time, potentially resulting in a viscous and bitter extracted coffee. Conversely, under-compaction prevents the coffee grounds from being extracted evenly, potentially affecting the taste and quality of the coffee. Therefore, when making coffee capsules, the appropriate compaction level needs to be determined based on the characteristics of the coffee and its grind size to ensure the best possible taste.

[0003] Traditional capsule coffee lids use pre-made lids, which are cut to the cup shape in advance and then sealed to the cup rim by a heat-sealing mechanism. This method is more expensive than in-line die-cut lids, and even slight changes in cup size render the lid unusable. Furthermore, these pre-made lids typically require a rotating suction cup mechanism for handling, which involves a large stroke and can easily lead to misalignment between the lid and the cup rim, resulting in poor sealing and failing to achieve concentricity between the film roll and the coffee capsule. Some designs integrate the cutter and heating block into a single unit, essentially a moving mold, which can easily injure operators during maintenance or operation. In ordinary machines, the cutter is always outside the heating block during each cycle, allowing heat to easily transfer to the cutter and causing burrs. Traditional heating blocks also have a long preheating time from startup to operation.

[0004] Capsule-style products, such as coffee capsules, probiotic capsules, and milk powder capsules, are increasingly favored by consumers due to their convenience and stability. Coffee and milk powder are easily oxidized, and most probiotic strains are anaerobic. Therefore, the filling process for these capsule-style products requires a low-oxygen or even anaerobic environment within the cup, but current filling environments cannot meet these requirements. For example, Chinese Patent Publication No. CN218806802U discloses a film cutting mechanism for heat-sealing film, including a cutter lifting mechanism, a cutter module, and a film suction assembly. The cutter module includes an inner hollow cutter and a cutting and fitting mold. The inner hollow cutter has a hollow cavity that runs vertically through it. The cutting and fitting mold is located below the inner hollow cutter and has a vertical through hole that matches the shape of the inner hollow cutter. The cutting and fitting mold has a horizontal channel in the middle for the heat-sealing film to pass through. The cutter lifting mechanism is connected to the inner hollow cutter. The film suction assembly includes an adsorption tube and a driving assembly for driving the adsorption tube to move up and down. The adsorption tube extends into the hollow cavity of the inner hollow cutter and is connected to a negative pressure device. The heat-sealing film cutting mechanism is equipped with an inner hollow cutter, and a liftable suction tube is installed in the hollow cavity of the inner hollow cutter. The suction tube is used to hold the heat-sealing film tightly and place the cut heat-sealing film on the top surface of the product, so as to prevent the heat-sealing film from falling freely onto the top surface of the product and causing the film to fall off or shift, thus ensuring the sealing effect of the finished product.

[0005] Therefore, there is currently a lack of efficient and stable production equipment for the filling and sealing process of coffee capsules. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides an automated coffee capsule filling and sealing machine to solve the aforementioned problems.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0008] An automated coffee capsule filling and sealing machine includes a filling mechanism, a powder compaction mechanism, a sealing film punching and sealing mechanism, and a vacuuming and nitrogen filling mechanism, wherein the filling mechanism, the powder compaction mechanism, and the sealing film punching and sealing mechanism are arranged sequentially corresponding to the vacuuming and nitrogen filling mechanism.

[0009] Preferably, the powder compaction mechanism includes a powder mechanism main board, a powder lifting device, a powder pressing device, and a dust-collecting elastic sealing device. The powder lifting device is mounted on the powder mechanism main board, and the powder pressing device is fixed on the powder mechanism main board, with one end extending into the dust-collecting elastic sealing device. The dust-collecting elastic sealing device is connected to the powder mechanism main board. The powder pressing head of the powder compaction mechanism extends into the capsule cup containing the material through a powder lifting cylinder, and the powder pressing head is rotated by a powder rotating cylinder to compress the material. The downward pressure and rotational force of the powder pressing head are utilized, and the pressure of the powder rotating cylinder is used to adjust the powder pressure, thereby compacting the capsule coffee. The powder pressing head presses down on the material, and the sealed cavity formed by the powder dust collection hood and the powder main board D removes dust from the mouth of the capsule coffee cup, effectively ensuring that the cup mouth is clean, thus providing good sealing conditions for subsequent sealing.

[0010] Preferably, the powder mechanism main board includes powder main board A, powder main board B, powder main board C, and powder main board D. The powder lifting device includes a powder lifting cylinder, a powder bearing with a seat, and a powder sliding shaft. The powder lifting cylinder is fixed on powder main board A, the powder bearing with a seat is fixed on powder main board A, and the powder sliding shaft passes through powder main board A and powder main board B and connects to powder main board C. The crossbeam between the powder sliding shafts is connected to the telescopic end of the powder lifting cylinder. The powder pressing device includes a powder rotating cylinder, a powder coupling, a powder transition shaft, a powder bearing positioning seat, and a powder pressing head. The powder rotating cylinder is disposed on powder main board B. One end of the powder transition shaft is connected to the powder rotating cylinder through the powder coupling, and the other end of the powder transition shaft passes through the powder bearing positioning seat and connects to the powder pressing head. The powder bearing positioning seat is disposed on powder main board C.

[0011] Preferably, the dust-collecting elastic sealing device includes a powder dust-collecting hood and a dust-collecting elastic mechanism. The powder dust-collecting hood is connected to the powder main board C through the dust-collecting elastic mechanism. The powder dust-collecting hood is provided with a powder dust-collecting pipe. The dust-collecting elastic mechanism includes a powder spring and a powder movable column. The two ends of the powder spring are respectively connected to the powder dust-collecting hood and the powder main board C. One end of the powder movable column is fixed on the powder dust-collecting hood, and the other end is movably connected to the powder main board C in a limited manner. The powder main board D is a conveying plate, and the powder main board D is provided with a placement groove.

[0012] Preferably, the sealing film punching and sealing mechanism includes a sealing roll conveying system, a sealing main drive mechanism, a sealing pressure head device, and a sealing pressure film cutter device. The sealing main drive mechanism is connected to the sealing pressure head device, the sealing pressure film cutter device is located below the sealing pressure head device, the sealing roll conveying system is located on both sides of the sealing pressure film cutter device, and the sealing pressure head device and the sealing pressure film cutter device are concentrically arranged. The sealing film pressing and cutting device includes a sealing film pressing base, a sealing film pressing telescopic device, a sealing film pressing clamping plate, a sealing cutter pressure plate, a sealing cutter elastic element, a sealing cutter limiting shaft, and a sealing cutter body. The sealing film pressing telescopic device is mounted on the sealing film pressing base, and its telescopic end is connected to the sealing film pressing clamping plate below the sealing film pressing base. The sealing cutter pressure plate is limited by the sealing cutter limiting shaft and can be embedded in the groove of the sealing film pressing base. The sealing cutter elastic element is mounted on the sealing cutter limiting shaft. The sealing cutter body is connected to the sealing cutter pressure plate. Compared with the traditional structure, the sealing film punching and cutting mechanism is equivalent to a fixed mold, which is fixed on the base, while the traditional structure usually places the cutter on top, which is equivalent to a moving mold. The advantages are: firstly, the cutter is hidden in the base, so it will not injure the operator during maintenance or operation; secondly, the sealing head heating system starts and stops at the same position during each cycle of operation. When the sealing and pressing cutter is removed from the sealing head heating system, such as during machine shutdown, the heating block at the bottom of the sealing head heating system is located above the sealing and pressing cutter, reducing heat transfer to the sealing cutter body. This ensures maximum cold cutting during punching, significantly reducing burrs. The punching and sealing of the sealing roll film are completed in the same station, and the negative pressure suction cup of the sealing head negative pressure system holds the sealing roll film, ensuring concentricity of the punched sealing roll film, heating block, and the rim of the capsule coffee cup, thus guaranteeing excellent sealing and airtightness. The sealing and pressing cutter adopts a hidden elastic floating design, so that the sealing cutter body is retracted within the sealing and pressing cutter in normal shutdown conditions. The modular and detachable design of the sealing head heating and adsorption system facilitates the replacement of thermocouples, heating blocks, and other spare parts during later use. The rapidly heating ceramic heat sealing system enables quick readiness for production.

[0013] Preferably, the sealing film conveying system includes a sealing film roller and a sealing film. The sealing film roller is disposed on both sides of the sealing film pressing and cutting device. The sealing film contacts the sealing film roller and transitions between the sealing film pressing and cutting devices. The sealing drive mechanism includes a sealing drive motor, a sealing slide rail, and a sealing crank connecting rod mechanism. One end of the sealing drive motor is connected to the sealing crank connecting rod mechanism, and the other end of the sealing crank connecting rod mechanism is connected to the sealing pressure head device. The sealing pressure head device is limited and disposed on the sealing slide rail.

[0014] Preferably, the sealing head device includes a sealing head base plate, a sealing head cylinder, a sealing head connecting shaft, a sealing head bearing seat, a sealing head cylinder drive block, a sealing head punching head, a sealing head fixing seat, a sealing head fixing shaft, and a sealing head heating and adsorption system. The sealing head base plate is connected to the sealing main drive mechanism. The sealing head cylinder is fixed on both sides of the sealing head base plate. The sealing head cylinder is connected to the sealing head cylinder drive block. The sealing head bearing seat is fixed on the sealing head base plate and has a sealing head connecting shaft sleeved inside. The sealing head connecting shaft is fixed on the sealing head cylinder drive block. The other end of the sealing head connecting shaft is connected to the sealing head punching head. The sealing head fixing seat is connected to the sealing head base plate. The sealing head heating system is connected to the sealing head fixing seat through the sealing head fixing shaft. The sealing head heating adsorption system is connected to the sealing head fixing shaft.

[0015] Preferably, the sealing head heating and adsorption system includes a sealing head heating system and a sealing head negative pressure system. The sealing head negative pressure system is located inside the center of the sealing head heating system. A negative pressure suction cup is provided at the end of the sealing head negative pressure system. A heating block is provided at the end of the sealing head heating system. The sealing head heating system is a ceramic heat sealing system. The center of the negative pressure suction cup is an X-shaped hollow.

[0016] Preferably, the vacuuming and nitrogen-filling mechanism includes a nitrogen-filling vacuum hood, a nitrogen-filling vacuum lifting mechanism, a capsule cup conveying mechanism, and a filling protection chamber. The nitrogen-filling vacuum hood is connected to the nitrogen-filling vacuum lifting mechanism and is located on the inner and outer sides of the capsule cup conveying mechanism, corresponding to each other. The filling protection chamber surrounds the capsule cup conveying mechanism. The positive pressure nitrogen environment formed by the filling protection chamber of the vacuuming and nitrogen-filling mechanism surrounding the capsule cup conveying mechanism can displace the air in the empty capsule cup and provide a positive pressure nitrogen environment for each station that can be embedded in the filling protection chamber. The vacuuming and nitrogen-filling mechanism evacuates the capsule cup filled with material, directly sucking away the air and replenishing the capsule cup with nitrogen, thus achieving an almost oxygen-free environment in the capsule cup.

[0017] Preferably, the nitrogen-filling vacuum hood is equipped with a nitrogen-filling filter screen inside, and a gas pipe connector is provided on one side of the nitrogen-filling vacuum hood. The capsule cup conveying mechanism includes a nitrogen-filling transmission drive and a nitrogen-filling transmission placement block. The nitrogen-filling transmission placement block is sequentially arrayed and dynamically connected to the nitrogen-filling transmission drive. The nitrogen-filling transmission placement block is provided with a capsule cup placement hole. The capsule cup conveying mechanism is also equipped with an on / off valve, a vacuum pump, a nitrogen-filling valve, and a nitrogen-filling device inside. One side of the on / off valve is connected to the vacuum pump, and the other side is connected to the gas pipe connector. One side of the nitrogen-filling valve is connected to the nitrogen-filling interface of the nitrogen-filling device, and the other side is connected to the gas pipe connector. The nitrogen-filling device is also provided with an inflation hole for filling nitrogen into the capsule cup conveying mechanism. The upper part of the filling protection chamber is provided with several through holes. The nitrogen-filling vacuum lifting mechanism is a lifting cylinder. A movement clearance margin of 1mm is left between the filling protection chamber and the nitrogen-filling transmission placement block. Compared to existing technologies, this invention discloses an automated coffee capsule filling and sealing machine, comprising a filling mechanism, a powder compaction mechanism, a sealing film punching and sealing mechanism, and a vacuuming and nitrogen filling mechanism, which work together to achieve their functions. ① The powder compaction mechanism's powder head extends into the capsule cup containing the material through a powder lifting cylinder, and the powder rotating cylinder drives the powder head to rotate to compress the material. It utilizes the downward pressure and rotational force of the powder head, and adjusts the powder pressure through the pressure of the powder rotating cylinder, thereby compacting the capsule coffee. The powder head presses down on the material, and the sealed cavity formed by the powder dust hood and the powder main board D removes dust from the mouth of the capsule coffee cup, effectively ensuring that the cup mouth is clean, thus providing good sealing conditions for subsequent sealing. ② Compared to traditional structures, the sealing film punching and sealing mechanism is essentially a fixed mold, fixed to the base, while traditional structures typically place the blade on top, acting as a moving mold. The advantages are twofold: first, the blade is hidden within the base, preventing injury to operators during maintenance or operation; second, during each cycle, the sealing pressure head heating system is detached from the sealing film cutting device. For example, when the machine stops, the lowest heating block of the sealing pressure head heating system is on top of the sealing film cutting device, reducing heat transfer to the sealing cutter body. This ensures maximum cold cutting during punching, significantly reducing burrs. The punching and sealing of the sealing roll film... The sealing roll film is completed at the same workstation and is held in place by the negative pressure suction cup of the sealing head negative pressure system. This ensures the concentricity of the cut sealing roll film, heating block, and capsule coffee cup mouth, thus guaranteeing excellent sealing and airtightness. The sealing and pressing cutter device adopts a hidden elastic floating design, so that the main body of the sealing cutter is retracted inside the sealing and pressing cutter device when the machine is not in use. The modular and detachable design of the sealing head heating and adsorption system makes it easy to replace spare parts such as thermocouples and heating blocks during later use. The rapid heating ceramic heat sealing system enables the rapid readiness of production conditions. ③ The positive pressure nitrogen environment formed by the filling protection chamber of the vacuum nitrogen filling mechanism surrounding the capsule cup conveying mechanism can replace the air in the empty capsule cup and provide a positive pressure nitrogen environment for each station that can be embedded in the filling protection chamber. The vacuum nitrogen filling mechanism evacuates the capsule cup filled with material, directly sucks away the air, and replenishes the capsule cup with nitrogen, thus achieving an almost oxygen-free environment in the capsule cup. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automated coffee capsule filling and sealing machine of the present invention; Figure 2 This is a schematic diagram of the automated coffee capsule filling and sealing machine of the present invention; Figure 3 This is a structural reference diagram of the filling mechanism of the present invention; Figure 4 This is a structural reference diagram of the filling mechanism of the present invention. Figure 5 This is a schematic diagram of a powder compaction mechanism; Figure 6 This is a schematic diagram of the powder compaction mechanism of the present invention; Figure 7 This is a schematic diagram of the powder compaction mechanism of the present invention; Figure 8 This is a schematic diagram of the powder compaction mechanism of the present invention; Figure 9 This is a cross-sectional schematic diagram of the powder compaction mechanism of the present invention; Figure 10 This is a partially enlarged schematic diagram of the powder compaction mechanism of the present invention; Figure 11 This is a schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 12 This is a half-sectional schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 13 This is a schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 14 This is a schematic diagram of the sealing head device of the present invention; Figure 15 This is a schematic diagram of the sealing head device of the present invention; Figure 16 This is a schematic diagram of the sealing head device of the present invention; Figure 17 This is a partial cross-sectional schematic diagram of the sealing pressure head heating adsorption system of the present invention; Figure 18 This is a schematic diagram of the sealing and pressing film cutting device of the present invention; Figure 19 This is a partial cross-sectional schematic diagram of the sealing and pressing film cutting device of the present invention; Figure 20 This is a partial cross-sectional schematic diagram of the sealing and pressing film cutting device of the present invention; Figure 21 This is a cross-sectional schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 22 This is a schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 23 This is a schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 24 This is a schematic diagram of the sealing film punching and sealing mechanism of the present invention; Figure 25This is a schematic diagram of the vacuuming and nitrogen-filling mechanism of the present invention; Figure 26 This is a schematic diagram of the capsule cup conveying mechanism of the present invention; Figure 27 This is a schematic diagram of the capsule cup conveying mechanism of the present invention; Figure 28 This is a schematic diagram of the operation of the nitrogen-filling vacuum hood and the nitrogen-filling vacuum lifting mechanism of the present invention; Figure 29 This is a schematic diagram of the operation of the nitrogen-filling vacuum hood and the nitrogen-filling vacuum lifting mechanism of the present invention; Figure 30 This is a schematic diagram of the operation of the nitrogen-filling vacuum hood and the nitrogen-filling vacuum lifting mechanism of the present invention; Figure 31 This is a reference schematic diagram of the cup dropping mechanism in an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] An automated coffee capsule filling and sealing machine includes a filling mechanism 1, a powder compaction mechanism 2, a sealing film punching and sealing mechanism 3, and a vacuuming and nitrogen filling mechanism 4. The filling mechanism 1, the powder compaction mechanism 2, and the sealing film punching and sealing mechanism 3 are arranged in sequence corresponding to the vacuuming and nitrogen filling mechanism 4.

[0021] The powder compaction mechanism 2 includes a powder mechanism main board 21, a powder lifting device 22, a powder pressing device 23, and a dust-collecting elastic sealing device 24. The powder lifting device 22 is mounted on the powder mechanism main board 21. The powder pressing device 23 is fixed on the powder mechanism main board 21, and one end of it extends into the dust-collecting elastic sealing device 24. The dust-collecting elastic sealing device 24 is connected to the powder mechanism main board 21. The powder mechanism main board 21 includes powder main board A211, powder main board B212, powder main board C213, and powder main board D214. The powder lifting device 22 includes a powder lifting cylinder 221. The powder lifting cylinder 221 is fixed on the powder main board A211, and the powder bearing 222 is fixed on the powder main board A211. The powder sliding shaft 223 passes through the powder main board A211 and the powder main board B212 and connects to the powder main board C213. The crossbeam between the powder sliding shafts 223 is connected to the telescopic end of the powder lifting cylinder 221. The powder pressing device 23 includes a powder rotating cylinder 231, a powder coupling 232, a powder transition shaft 233, a powder bearing positioning seat 234, and a powder pressing head 235. To prevent the powder pressing head from being pressed... 235 Powder Adhesion: The powder pressing head 235 has undergone a special coating treatment. The powder rotary cylinder 231 is mounted on the powder main board B212. One end of the powder transition shaft 233 is connected to the powder rotary cylinder 231 via a powder coupling 232. The other end of the powder transition shaft 233 passes through a powder bearing positioning seat 234 and connects to the powder pressing head 235. The powder bearing positioning seat 234 is mounted on the powder main board C213. The dust-collecting elastic sealing device 24 includes a powder dust-collecting hood 241 and a dust-collecting elastic mechanism 242. The powder dust-collecting hood 241 is connected to the powder main board C213 via the dust-collecting elastic mechanism 242. Next, the powder dust collection hood 241 is provided with a powder dust collection pipe 2411, and the dust collection elastic mechanism 242 includes a powder spring 2421 and a powder movable column 2422. The two ends of the powder spring 2421 are respectively connected to the powder dust collection hood 241 and the powder main board C213. One end of the powder movable column 2422 is fixed on the powder dust collection hood 241, and the other end is movably connected to the powder main board C213 in a limited manner. The powder main board D214 is a conveyor plate, and the powder main board D214 is provided with a placement groove. The conveyor plate is a moving part on the conveyor belt of the assembly line that cooperates with this solution, and will not be elaborated further.

[0022] Working mode: When the powder main board D214 drives the capsule cup to be conveyed to the bottom of the powder pressing device 23 on the conveyor belt, the powder lifting cylinder 221 drives the powder main board C213 to descend, thereby driving the powder dust suction hood 241 to press down the powder main board D214. The powder pressing head 235 extends into the capsule cup and comes into direct contact with the material. At the same time, the powder rotating cylinder 231 acts to drive the powder pressing head 235 to rotate and compact the material. The pressure of the powder pressing head 235 on the material can be adjusted by the air pressure of the powder rotating cylinder 231.

[0023] While the powder press head 235 presses down on the material, the powder suction pipe 2411 operates to suction dust from the cavity inside the powder suction hood 241, removing dust from the mouth of the capsule cup to prevent contamination and ensure proper sealing in subsequent processes. Furthermore, by pressing down on the material inside the capsule cup with the powder press head 235, the suction action prevents the material from being sucked away during operation.

[0024] The sealing film punching and sealing mechanism 3 includes a sealing roll conveying system 31, a sealing main drive mechanism 32, a sealing pressure head device 33, and a sealing pressure cutting device 34. The sealing main drive mechanism 32 is connected to the sealing pressure head device 33. The sealing pressure cutting device 34 is located below the sealing pressure head device 33. The sealing roll conveying system 31 is located on both sides of the sealing pressure cutting device 34. The sealing pressure head device 33 and the sealing pressure cutting device 34 are concentrically arranged. The sealing and pressing film cutting device 34 includes a sealing and pressing film base 341, a sealing and pressing film telescopic device 342, a sealing and pressing film clamping plate 343, a sealing and cutting film pressing plate 344, a sealing and cutting film elastic element 345, a sealing and cutting film limiting shaft 346, and a sealing and cutting film body 347. The sealing and pressing film telescopic device 342 is mounted on the sealing and pressing film base 341, and its telescopic end is connected to the sealing and pressing film clamping plate 343 below the sealing and pressing film base 341. The sealing and cutting film pressing plate 344 is limited and mounted on the sealing and cutting film limiting shaft 346, and can be embedded in the groove of the sealing and pressing film base 341. The sealing and cutting film elastic element 345 is mounted on the sealing and cutting film limiting shaft 346. The sealing and cutting film body 347 is connected to the sealing and cutting film pressing plate 344.

[0025] In normal non-working conditions, the bottom end of the sealing cutter body 347 is always retracted inside the sealing and film pressing cutter device 34, keeping a distance from the rolled film, effectively preventing the operator from coming into contact with the blade, thereby effectively preventing injury from the blade.

[0026] The sealing roll film conveying system 31 includes a sealing roll film roller 311 and a sealing roll film 312. The sealing roll film roller 311 is arranged on both sides of the sealing and pressing film cutting device 34. The sealing roll film 312 contacts the sealing roll film roller 311 and transitions between the sealing and pressing film cutting devices 34.

[0027] The sealing drive mechanism 32 includes a sealing drive motor 321, a sealing slide rail 322, and a sealing crank-connecting rod mechanism 323. The sealing drive motor 321 is connected to one end of the sealing crank-connecting rod mechanism 323, and the other end of the sealing crank-connecting rod mechanism 323 is connected to the sealing pressure head device 33. The sealing pressure head device 33 is limited and positioned on the sealing slide rail 322.

[0028] The sealing head device 33 includes a sealing head base plate 331, a sealing head cylinder 332, a sealing head connecting shaft 333, a sealing head bearing seat 334, a sealing head cylinder drive block 335, a sealing head punching head 336, a sealing head fixing seat 337, a sealing head fixing shaft 338, and a sealing head heating and adsorption system 339. The sealing head base plate 331 is connected to the sealing drive mechanism 32. The sealing head cylinder 332 is fixed on both sides of the sealing head base plate 331. The sealing head cylinder 332 is connected to the sealing head cylinder drive block 335. The sealing head bearing seat 334 is fixed on the sealing head base plate 331 and has one end of the sealing head connecting shaft 333 sleeved inside. The sealing head connecting shaft 333 is fixed on the sealing head cylinder drive block 335. The other end of the sealing head connecting shaft 333 is connected to the sealing head punching head 336. The sealing head fixing seat 337 is connected to the sealing head base plate 331. The sealing head heating system 3391 is connected to the sealing head fixing seat 337 through the sealing head fixing shaft 338. The sealing head heating adsorption system 339 is connected to the sealing head fixing shaft 338.

[0029] The sealing head fixing seat 337 is detachably mounted on the sealing head base plate 331. Furthermore, the sealing head heating system 3391 and the sealing head negative pressure system 3392 in the sealing head heating and adsorption system 339 are both modularly designed, which allows for easy replacement of spare parts such as the heating block 33911 or the negative pressure suction cup 33921 ​​in the future.

[0030] The sealing head heating and adsorption system 339 includes a sealing head heating system 3391 and a sealing head negative pressure system 3392. The sealing head negative pressure system 3392 is located inside the center of the sealing head heating system 3391. The sealing head negative pressure system 3392 is provided with a negative pressure suction cup 33921 ​​at its end, and the sealing head heating system 3391 is provided with a heating block 33911 at its end.

[0031] The sealing head heating system 3391 is a ceramic heat sealing system. It quickly heats the heating block 33911. Compared to the traditional heating tube, which takes 5 minutes to heat up to 150-200℃, the ceramic heat sealing system only takes 1 minute. It is worth noting that although the ceramic heat sealing system does not have any major improvements, the key point is to ensure the concentricity of the die-cut sealing roll 312, the heating block 33911, and the mouth of the capsule coffee cup, thereby ensuring excellent sealing and airtightness. In addition, the modular and detachable design makes it convenient to replace thermocouples, heating blocks 33911, and other spare parts during later use. The rapid heating ceramic heat sealing system enables quick production.

[0032] The negative pressure suction cup 33921 ​​has an X-shaped hollow center.

[0033] Working mode: The sealing film roller 311 drives the sealing film 312 in a stepping motion. After one cycle, the sealing film pressing telescopic device 342 retracts, clamping the sealing film 312 through the sealing film pressing clamp 343 and the sealing film pressing base 341. The sealing drive motor 321 drives the sealing crank connecting rod mechanism 323 to drive the sealing pressure head device 33 to move on the sealing slide rail 322. At this time, the sealing pressure head cylinder 332 is in the extended state. As the sealing head device 33 descends, the sealing head punching head 336 contacts and presses down on the sealing cutter pressure plate 344. The sealing cutter pressure plate 344 squeezes the sealing cutter elastic element 345, causing the sealing cutter body 347 to complete the punching operation on the sealing roll film 312. At the same time, the negative pressure suction cup 33921 ​​of the sealing head negative pressure system 3392 adsorbs the cut sealing roll film 312. The punched sealing roll film 312 is under negative pressure. The suction cup 33921 ​​is positioned at the center to ensure overall concentricity. The sealing head cylinder 332 resets, and the sealing head punching head 336 leaves the sealing cutter plate 344. The sealing cutter body 347 retracts back to its original position. The sealing drive motor 321 continues to drive the sealing crank connecting rod mechanism 323 to drive the sealing head device 33 to move on the sealing slide rail 322. At this time, the heating block 33911 of the sealing head heating system 3391, the punched sealing roll film 312, and the mouth of the capsule coffee cup come into contact. The sealing roll film 312 completes the heat sealing work under the sealing temperature and pressure of the heating block 33911. At the same time as the sealing is completed, the negative pressure suction cup 33921 ​​at the center of the sealing module is depressurized and no longer adsorbs the sealing roll film 312. After completing the above actions, the sealing drive motor 321 reverses and drives the sealing head device 33 to move upward back to the original position. This completes one cycle of the operation.

[0034] The vacuum-filling nitrogen mechanism 4 includes a nitrogen-filling vacuum hood 41, a nitrogen-filling vacuum lifting mechanism 42, a capsule cup conveying mechanism 43, and a filling protection chamber 44. The nitrogen-filling vacuum hood 41 is connected to the nitrogen-filling vacuum lifting mechanism 42 and is located on the inner and outer sides of the capsule cup conveying mechanism 43. The filling protection chamber 44 surrounds the capsule cup conveying mechanism 43. A nitrogen-filling filter screen is provided inside the nitrogen-filling vacuum hood 41, and a gas pipe connector 411 is provided on one side of the nitrogen-filling vacuum hood 41. The capsule cup conveying mechanism 43 includes a nitrogen-filling transmission drive 431 and nitrogen-filling transmission mounting blocks 432. The nitrogen-filling transmission mounting blocks 432 are sequentially arrayed and dynamically connected to the nitrogen-filling transmission drive 431. The nitrogen-filling transmission drive 431 can be a belt drive or a chain drive, etc., as long as it can drive the nitrogen-filling transmission mounting blocks 432 to rotate tightly in a cyclic sequence. A capsule cup is mounted on the nitrogen-filling transmission block 432. The capsule cup conveying mechanism 43 is equipped with a shut-off valve, a vacuum pump, a nitrogen filling valve, and a nitrogen filling device. The shut-off valve is connected to the vacuum pump on one side and to the gas pipe connector 411 on the other side. The nitrogen filling valve is connected to the nitrogen filling interface of the nitrogen filling device on one side and to the gas pipe connector 411 on the other side. The nitrogen filling device is also equipped with an inflation port for filling nitrogen into the capsule cup conveying mechanism 43. The upper part of the filling protection chamber 44 is provided with several through holes. The nitrogen filling vacuum lifting mechanism 42 is a lifting cylinder. There is a movement clearance margin between the filling protection chamber 44 and the nitrogen filling transmission placement block 432. The movement clearance margin is 1mm. Of course, a reasonable movement clearance margin can be formulated according to actual working needs to ensure that the movement of the nitrogen filling transmission placement block 432 is not affected, and that the nitrogen continuously filled by the inflation port of the nitrogen filling device expands in the filling protection chamber 44 without excessive leakage.

[0035] Within the relatively sealed environment enclosed by the capsule cup conveying mechanism 43 in the filling protection chamber 44, there are other supporting equipment such as nitrogen pressure gauges, nitrogen flow detection switches, nitrogen concentration detectors, vacuum pressure gauges, and gas pipe fittings, which are not listed in this plan. These can be determined by the staff based on the actual needs during implementation. When the nitrogen content in the overall filling protection chamber 44 is insufficient, nitrogen is continuously injected through the filling port of the nitrogen filling equipment. When the nitrogen filling transmission block 432 moves the capsule cup to the position of the nitrogen filling vacuum hood 41, the nitrogen filling vacuum lifting mechanisms 42 on both the inner and outer sides begin to work, pushing the nitrogen filling vacuum hood 41. The nitrogen filling vacuum hood 41 presses against the nitrogen filling transmission block 432, forming a sealed cavity environment. The on / off valve starts the vacuum pump to evacuate the sealed cavity. Because a nitrogen filter screen is arranged inside the vacuum hood, air is allowed through but powder is not, achieving the purpose of only removing air and not sucking in materials. Vacuuming stops when the vacuum pressure reaches the set value. The nitrogen filling valve is activated to further replenish nitrogen into the sealed cavity. In this way, the capsule cup containing the material is almost completely free of air. After the vacuuming and nitrogen filling process is completed, the inner and outer nitrogen filling vacuum lifting mechanism 42 resets, and the capsule cup containing the material remains in a positive pressure nitrogen environment. The nitrogen filling transmission drive 431 moves the nitrogen filling transmission placement block 432 of the capsule cup containing the material to the next sealing station to complete the subsequent sealing of the capsule cup. In this way, a qualified capsule product with almost no oxygen can be obtained. The nitrogen filling transmission placement block 432 continuously drives the central coffee capsule cup to move forward at various working positions.

[0036] Another reference diagram of filling mechanism 1 is as follows: Figure 3 and Figure 4 As shown, the filling mechanism 1 in this embodiment is a screw filling type, but other filling types are also possible. The screw filling type is just one of several types, and the main inventive points are in the powder compaction mechanism 2, the sealing film punching and sealing mechanism 3, and the vacuuming and nitrogen filling mechanism 4. Therefore, they will not be elaborated on in this embodiment. In addition, the filling protection chamber 44 has corresponding working holes for the mechanisms required for the above work. Furthermore, as... Figure 31 The cup dropping mechanism shown is for reference only and is not a mandatory option in this embodiment. It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated coffee capsule filling and sealing machine, characterized in that: The system includes a filling mechanism (1), a powder compaction mechanism (2), a sealing film punching and sealing mechanism (3), and a vacuuming and nitrogen filling mechanism (4). The filling mechanism (1), the powder compaction mechanism (2), and the sealing film punching and sealing mechanism (3) are arranged sequentially to correspond to the vacuuming and nitrogen filling mechanism (4). The sealing film punching and sealing mechanism (3) includes a sealing roll film conveying system (31), a sealing main drive mechanism (32), a sealing pressure head device (33), and a sealing pressure film cutter device (34). The sealing main drive mechanism (32) is connected to the sealing pressure head device (33). The sealing pressure film cutter device (34) is located below the sealing pressure head device (33). The sealing roll film conveying system (31) is located on both sides of the sealing pressure film cutter device (34). The sealing pressure head device (33) and the sealing pressure film cutter device (34) are concentrically arranged. The sealing and pressing film cutting device (34) includes a sealing and pressing film base (341), a sealing and pressing film telescopic device (342), a sealing and pressing film clamping plate (343), a sealing and cutting film pressure plate (344), a sealing and cutting film elastic element (345), a sealing and cutting film limiting shaft (346), and a sealing and cutting film body (347). The sealing and pressing film telescopic device (342) is mounted on the sealing and pressing film base (341), and its telescopic end is connected to the sealing and pressing film clamping plate (343) below the sealing and pressing film base (341). The sealing and cutting film pressure plate (344) is limited and mounted on the sealing and cutting film limiting shaft (346), and can be embedded in the groove of the sealing and pressing film base (341) around its perimeter. The sealing and cutting film elastic element (345) is mounted on the sealing and cutting film limiting shaft (346). The sealing and cutting film body (347) is connected to the sealing and cutting film pressure plate (344). The sealing head device (33) includes a sealing head base plate (331), a sealing head cylinder (332), a sealing head connecting shaft (333), a sealing head bearing seat (334), a sealing head cylinder drive block (335), a sealing head punching head (336), a sealing head fixing seat (337), a sealing head fixing shaft (338), and a sealing head heating and adsorption system (339). The sealing head base plate (331) is connected to the sealing drive mechanism (32). The sealing head cylinder (332) is fixed on both sides of the sealing head base plate (331). The sealing head cylinder (332) is connected to the sealing head cylinder drive block (335). The sealing head bearing seat (334) is fixed on the sealing head base plate (331) and has a sealing head connecting shaft (333) sleeved inside. The sealing head connecting shaft (333) is fixed on the sealing head cylinder drive block (335). The other end of the sealing head connecting shaft (333) is connected to the sealing head punching head (336). The sealing head fixing seat (337) is connected to the sealing head base plate (331). The sealing head heating and adsorption system (339) is connected to the sealing head fixing seat (337) through the sealing head fixing shaft (338). The sealing head heating and adsorption system (339) includes a sealing head heating system (3391) and a sealing head negative pressure system (3392). The sealing head negative pressure system (3392) is located inside the center of the sealing head heating system (3391). The sealing head negative pressure system (3392) is provided with a negative pressure suction cup (33921) at its end, and the sealing head heating system (3391) is provided with a heating block (33911) at its end.

2. The automated coffee capsule filling and sealing machine according to claim 1, characterized in that: The powder compaction mechanism (2) includes a powder mechanism main board (21), a powder lifting device (22), a powder pressing device (23), and a dust-collecting elastic sealing device (24). The powder lifting device (22) is mounted on the powder mechanism main board (21), and the powder pressing device (23) is fixed on the powder mechanism main board (21) with one end extending into the dust-collecting elastic sealing device (24). The dust-collecting elastic sealing device (24) is connected to the powder mechanism main board (21).

3. The automated coffee capsule filling and sealing machine according to claim 2, characterized in that: The powder mechanism main board (21) includes powder main board A (211), powder main board B (212), powder main board C (213), and powder main board D (214). The powder lifting device (22) includes a powder lifting cylinder (221), a powder bearing with a mounting seat (222), and a powder sliding shaft (223). The powder lifting cylinder (221) is fixed on the powder main board A (211), the powder bearing with a mounting seat (222) is fixed on the powder main board A (211), and the powder sliding shaft (223) passes through the powder main board A (211) and the powder main board B (212) and is connected to the powder main board C (213). The crossbeam between the powder sliding shafts (223) is connected to the telescopic end of the powder lifting cylinder (221). The powder pressing device (23) includes a powder rotary cylinder (231), a powder coupling (232), a powder transition shaft (233), a powder bearing positioning seat (234), and a powder pressing head (235). The powder rotary cylinder (231) is mounted on the powder main board B (212). One end of the powder transition shaft (233) is connected to the powder rotary cylinder (231) through the powder coupling (232). The other end of the powder transition shaft (233) passes through the powder bearing positioning seat (234) and connects to the powder pressing head (235). The powder bearing positioning seat (234) is mounted on the powder main board C (213). The powder main board D (214) is a conveying plate, and the powder main board D (214) is provided with a placement groove.

4. The automated coffee capsule filling and sealing machine according to claim 3, characterized in that: The dust-collecting elastic sealing device (24) includes a powder dust-collecting hood (241) and a dust-collecting elastic mechanism (242). The powder dust-collecting hood (241) is connected to the powder main board C (213) through the dust-collecting elastic mechanism (242). The powder dust-collecting hood (241) is provided with a powder dust-collecting pipe (2411). The dust-collecting elastic mechanism (242) includes a powder spring (2421) and a powder movable column (2422). The two ends of the powder spring (2421) are respectively connected to the powder dust-collecting hood (241) and the powder main board C (213). One end of the powder movable column (2422) is fixed on the powder dust-collecting hood (241), and the other end is movably connected to the powder main board C (213) in a limited manner.

5. The automated coffee capsule filling and sealing machine according to claim 1, characterized in that: The sealing roll film conveying system (31) includes a sealing roll film roller (311) and a sealing roll film (312). The sealing roll film roller (311) is arranged on both sides of the sealing pressing and cutting device (34). The sealing roll film (312) contacts the sealing roll film roller (311) and transitions between the sealing pressing and cutting devices (34). The sealing general drive mechanism (32) includes a sealing drive motor (321), a sealing slide rail (322), and a sealing crank connecting rod mechanism (323). The sealing drive motor (321) is connected to one end of the sealing crank connecting rod mechanism (323), and the other end of the sealing crank connecting rod mechanism (323) is connected to the sealing pressing head device (33). The sealing pressing head device (33) is limited and arranged on the sealing slide rail (322).

6. The automated coffee capsule filling and sealing machine according to claim 1, characterized in that: The sealing pressure head heating system (3391) is a ceramic heat sealing system, and the negative pressure suction cup (33921) has an X-shaped hollow center.

7. The automated coffee capsule filling and sealing machine according to claim 1, characterized in that: The vacuuming and nitrogen filling mechanism (4) includes a nitrogen filling vacuum hood (41), a nitrogen filling vacuum lifting mechanism (42), a capsule cup conveying mechanism (43), and a filling protection chamber (44). The nitrogen filling vacuum hood (41) is connected to the nitrogen filling vacuum lifting mechanism (42) and is located on the inner and outer sides corresponding to the upper and lower sides of the capsule cup conveying mechanism (43). The filling protection chamber (44) is wrapped around the outside of the capsule cup conveying mechanism (43).

8. The automated coffee capsule filling and sealing machine according to claim 7, characterized in that: The nitrogen-filled vacuum hood (41) is equipped with a nitrogen-filled filter screen inside. A gas pipe connector (411) is located on one side of the nitrogen-filled vacuum hood (41). The capsule cup conveying mechanism (43) includes a nitrogen-filled transmission drive (431) and nitrogen-filled transmission placement blocks (432). The nitrogen-filled transmission placement blocks (432) are sequentially arrayed and dynamically connected to the nitrogen-filled transmission drive (431). Each nitrogen-filled transmission placement block (432) has a capsule cup placement hole. The capsule cup conveying mechanism (43) also includes an on / off valve, a vacuum pump, a nitrogen-filling valve, and nitrogen-filling equipment inside. The on / off valve is connected to a vacuum pump on one side and a gas pipe connector (411) on the other side. The nitrogen filling valve is connected to the nitrogen filling interface of the nitrogen filling equipment on one side and a gas pipe connector (411) on the other side. The nitrogen filling equipment is also provided with a gas filling hole for filling nitrogen into the capsule cup conveying mechanism (43). The upper part of the filling protection chamber (44) is provided with several through holes. The nitrogen filling vacuum lifting mechanism (42) is a lifting cylinder. There is a movement gap margin between the filling protection chamber (44) and the nitrogen filling transmission placement block (432), and the movement gap margin is 1mm.

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