Automatic coffee capsule filling and sealing machine

Abstract

The invention 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 filling mechanism which are mutually combined for use to play a role. Compared with a traditional structure, the sealing film punching and sealing mechanism has the advantages that the knife is hidden in the base, and operators cannot be hurt during maintenance or operation, the size of the powder pressure is adjusted through the pressure of the powder rotating air cylinder, so that the capsule coffee is compacted, and the sealing film punching and sealing mechanism is simple in structure and convenient to operate; and secondly, in the operation process of each cycle, the starting and stopping positions of the sealing pressure head heating system are separated from the sealing opening film pressing cutter device, the vacuumizing and nitrogen filling mechanism vacuumizes the capsule cup filled with materials, directly sucks away air and supplements nitrogen into the capsule cup, and the almost oxygen-free environment in the capsule cup is achieved.

Description

Technical Field

[0001] The invention relates to the field of coffee capsule filling and sealing, in particular to an automatic coffee capsule filling and sealing machine. Background Art

[0002] Capsule coffee is extracted using a dedicated high-temperature and high-pressure capsule coffee machine. The compaction of the material in the capsule cup has a significant impact on the taste of the extracted coffee. The appropriate degree of compaction allows water to fully penetrate the coffee powder, extracting the flavor and aroma of the coffee, ensuring a rich coffee taste and stable quality. However, the degree of compaction must also be moderate. Excessive compaction will increase the resistance of the powder cake and prolong the water flow penetration time. The final extracted coffee may be sticky and bitter. On the contrary, if the compaction is insufficient, the coffee powder cannot be evenly extracted, which may affect the taste and quality of the coffee. Therefore, when making coffee capsules, it is necessary to determine the appropriate degree of compaction based on the characteristics of the coffee and its grinding degree to ensure the best taste of the coffee.

[0003] The traditional capsule coffee cover film adopts the prefabricated cover film method, which is cut according to the cup shape in advance, and then sealed to the cup mouth by a heat sealing mechanism. The traditional prefabricated cover film method is to cut the cover film according to the cup shape in advance, and then seal the prefabricated cover film to the cup mouth by a heat sealing mechanism. This kind of prefabricated cover film is more expensive than the cover film punched online, and a slight change in the cup size will cause the cover film to be unusable. In addition, this kind of prefabricated cover film generally needs to be taken and placed by a rotating suction cup mechanism, which has a large stroke and is easy to cause the cover film to be misaligned with the cup mouth, resulting in poor sealing and the inability to achieve concentricity between the roll film and the capsule coffee. There is also a structure that integrates the cutter and the hot block, which is equivalent to a moving mold, which is easy to injure the operator during maintenance or operation. During each cycle of ordinary equipment, the cutter is on the outside of the hot block, and the heat is easily transferred to the cutter, which is particularly prone to burrs. The preheating time of the traditional hot block from startup to operation is relatively long.

[0004] Capsule cup products are becoming more and more popular among consumers due to their convenience and stability, such as coffee capsules, probiotic capsules, and milk powder capsules. Coffee and milk powder are both easily oxidized products, and most probiotic strains are anaerobic. Therefore, the filling of this type of capsule cup requires a low residual oxygen or even anaerobic environment in the cup, but the current filling environment cannot meet this requirement.

[0005] For example, a Chinese patent with publication number CN218806802U discloses a film cutting mechanism for heat-sealing film, including a cutter lifting mechanism, a cutter die set and a film suction assembly, the cutter die set includes an inner hollow cutter and a cutting matching die, the inner hollow cutter has a hollow cavity that passes through from top to bottom, the cutting matching die is located below the inner hollow cutter, and a vertical through hole that matches the shape of the inner hollow cutter is provided on the cutting matching die, a channel for heat-sealing film to pass through is horizontally provided in the middle of the cutting matching die, 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 rise and fall, the adsorption tube extends into the hollow cavity of the inner hollow cutter, and the adsorption tube is connected to a negative pressure device. The film cutting mechanism of the heat-sealing film is provided with an inner hollow cutter, and a liftable adsorption tube is provided in the hollow cavity of the inner hollow cutter. The adsorption tube is used to suck the heat-sealing film tightly and place the cut heat-sealing film on the upper surface of the product to prevent the heat-sealing film from falling freely on the upper surface of the product, causing the film to fall off or shift easily, thereby ensuring the sealing effect of the finished product.

[0006] Therefore, there is still a lack of efficient and stable production equipment for the packaging, filling and sealing of coffee capsules. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides an automatic coffee capsule filling and sealing machine to solve the above problems.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0009] An automatic coffee capsule filling and sealing machine comprises a filling mechanism, a powder compacting mechanism, a sealing film punching and sealing mechanism, and a vacuuming and nitrogen filling mechanism. The filling mechanism, the powder compacting mechanism, and the sealing film punching and sealing mechanism are arranged in sequence corresponding to the vacuuming and nitrogen filling mechanism.

[0010] Preferably, the powder compacting mechanism includes a powder mechanism main board, a powder lifting device, a powder pressing device, and a dust suction elastic sealing device. The powder lifting device is arranged on the powder mechanism main board, the powder pressing device is fixed on the powder mechanism main board, and one end is connected and extends to the inside of the dust suction elastic sealing device. The dust suction elastic sealing device is connected to the powder mechanism main board. The powder pressing head of the powder compacting mechanism extends into the capsule cup filled with the material through the powder lifting cylinder, and drives the powder pressing head to rotate through the powder rotating cylinder to realize the extrusion of the material, utilizes the downward pressure and rotational force of the powder pressing head, and realizes the adjustment of the powder pressure through the pressure of the powder rotating cylinder, thereby realizing the compaction of the capsule coffee, and utilizes the powder pressing head to press the material, and the powder dust hood and the powder main board D form a closed cavity to realize dust removal at the mouth of the capsule coffee cup, effectively ensuring that the cup mouth is clean, thereby providing good sealing conditions for the subsequent sealing.

[0011] Preferably, the powder mechanism mainboard includes powder mainboard A, powder mainboard B, powder mainboard C, and powder mainboard D, and the powder lifting device includes a powder lifting cylinder, a powder bearing seat, and a powder sliding shaft. The powder lifting cylinder is fixed on the powder mainboard A, and the powder bearing seat is fixed on the powder mainboard A. The powder sliding shaft is connected to the powder mainboard C after passing through the powder mainboard A and the powder mainboard B, and 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 locating seat, and a powder pressing head. The powder rotating cylinder is arranged on the powder mainboard 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 locating seat to connect the powder pressing head, and the powder bearing locating seat is arranged on the powder mainboard C.

[0012] Preferably, the dust suction elastic sealing device includes a powder dust suction hood and a dust suction elastic mechanism. The powder dust suction hood is connected to the powder main board C through the dust suction elastic mechanism. The powder dust suction hood is provided with a powder dust suction pipe. The dust suction 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 suction hood and the powder main board C. One end of the powder movable column is fixed to the powder dust suction hood, and the other end is movably connected to the powder main board C in a limiting manner. The powder main board D is a conveying plate, and a placement groove is provided on the powder main board D.

[0013] Preferably, the sealing film punching and sealing mechanism comprises a sealing film roll conveying system, a sealing total driving mechanism, a sealing pressure head device, and a sealing film pressing and cutting knife device. The sealing total driving mechanism is connected to the sealing pressure head device, the sealing film pressing and cutting knife device is located below the sealing pressure head device, the sealing film roll conveying system is located on both sides of the sealing film pressing and cutting knife device, and the sealing pressure head device and the sealing film pressing and cutting knife device are concentrically arranged.

[0014] The sealing and film pressing and cutting knife device comprises a sealing and film pressing base, a sealing and film pressing telescopic device, a sealing and film pressing splint, a sealing and cutting knife pressing plate, a sealing and cutting knife elastic part, a sealing and cutting knife limiting shaft, and a sealing and cutting knife main body. The sealing and film pressing telescopic device is arranged on the sealing and film pressing base, and the telescopic end is connected to the sealing and film pressing splint below the sealing and film pressing base. The sealing and cutting knife pressing plate limiting is arranged on the sealing and cutting knife limiting shaft, and can be embedded in the groove body of the sealing and film pressing base on all sides. The sealing and cutting knife elastic part is arranged on the sealing and cutting knife limiting shaft, and the sealing and cutting knife main body is connected with the sealing and cutting knife pressing plate. Compared with the traditional structure, the sealing film punching and sealing mechanism is equivalent to the fixed mold, which is fixed on the base, while the traditional structure generally puts the knife on it, which is equivalent to the movable mold. The advantages are that the knife is hidden in the base, and the operator will not be injured during maintenance or operation; secondly, during each cycle operation, the start and stop positions of the sealing pressure head heating system are all off When the sealing film cutting knife device is away, for example, when the machine is shut down, the lowest heating block of the sealing pressure head heating system is above the sealing film cutting knife device, which reduces the heat transferred to the sealing film cutting knife body. When punching and cutting, the cold cutting is achieved as much as possible, which greatly reduces the generation of burrs. The punching and sealing of the sealing film roll are completed at the same station, and the sealing film roll is sucked by the negative pressure suction cup of the sealing pressure head negative pressure system, ensuring the concentricity of the punched sealing film roll, the heating block and the mouth of the capsule coffee cup, thereby ensuring excellent sealing airtightness. The sealing film cutting knife device adopts a hidden elastic floating design, so that the sealing film cutting knife body is retracted in the sealing film cutting knife device in the daily shutdown state. The modular and detachable design of the sealing pressure head heating adsorption system is convenient for replacing spare parts such as thermocouples and heating blocks during later use. The fast-heating ceramic heat sealing system can quickly meet the production conditions. The fast-heating ceramic heat sealing system can quickly meet the production conditions.

[0015] Preferably, the sealing film roll conveying system includes a sealing film roll roller and a sealing film roll, the sealing film roll roller is arranged on both sides of the sealing film pressing and cutting knife device, the sealing film roll contacts the sealing film roll roller and transitions between the sealing film pressing and cutting knife devices, the total sealing drive mechanism includes a sealing drive motor, a sealing slide rail, and a sealing crank-connecting rod mechanism, the sealing drive motor is connected to one end of 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, and the sealing pressure head device is limited on the sealing slide rail.

[0016] Preferably, the sealing pressure head device includes a sealing pressure head base plate, a sealing pressure head cylinder, a sealing pressure head connecting shaft, a sealing pressure head bearing seat, a sealing pressure head cylinder driving block, a sealing pressure head punching pressure head, a sealing pressure head fixing seat, a sealing pressure head fixing shaft, and a sealing pressure head heating and adsorption system.

[0017] The sealing pressure head substrate is connected to the sealing total driving mechanism, the sealing pressure head cylinder is fixed on both sides of the sealing pressure head substrate, the sealing pressure head cylinder is connected to the sealing pressure head cylinder driving block, the sealing pressure head bearing seat is fixed on the sealing pressure head substrate, and one end of the sealing pressure head connecting shaft is sleeved inside, the sealing pressure head connecting shaft is fixed on the sealing pressure head cylinder driving block, the other end of the sealing pressure head connecting shaft is connected to the sealing pressure head punching pressure head, the sealing pressure head fixing seat is connected to the sealing pressure head substrate, the sealing pressure head heating system is connected to the sealing pressure head fixing seat through the sealing pressure head fixing shaft, and the sealing pressure head heating and adsorption system is connected to the sealing pressure head fixing shaft.

[0018] Preferably, the sealing pressure head heating and adsorption system includes a sealing pressure head heating system and a sealing pressure head negative pressure system. The sealing pressure head negative pressure system is arranged inside the center of the sealing pressure head heating system. A negative pressure suction cup is provided at the end of the sealing pressure head negative pressure system. A heating block is provided at the end of the sealing pressure head heating system. The sealing pressure head heating system is a ceramic heat sealing system, and the center position of the negative pressure suction cup is an X-hollow shape.

[0019] Preferably, the vacuum 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 arranged on the inner and outer sides corresponding to the upper and lower sides of the capsule cup conveying mechanism. The filling protection chamber is wrapped around the outside of the capsule cup conveying mechanism. The positive pressure nitrogen environment formed by the filling protection chamber of the vacuum nitrogen filling mechanism wrapped around the outside of the capsule cup conveying mechanism can replace the air in the empty capsule cup, and provide a positive pressure nitrogen environment for each workstation that can be embedded in the filling protection chamber. The vacuum nitrogen filling mechanism vacuums the capsule cup filled with material, directly sucks away the air, and replenishes nitrogen into the capsule cup, thereby achieving an almost oxygen-free environment in the capsule cup.

[0020] Preferably, a nitrogen filling filter is provided inside the nitrogen filling vacuum hood, a trachea joint is provided on one side of the nitrogen filling vacuum hood, the capsule cup conveying mechanism comprises a nitrogen filling transmission drive and a nitrogen filling transmission placement block, the nitrogen filling transmission placement blocks are sequentially connected to the nitrogen filling transmission drive in an array, the nitrogen filling transmission placement block is provided with a capsule cup placement hole, an on-off valve, a vacuum pump, a nitrogen filling valve, and a nitrogen filling device are also provided inside the capsule cup conveying mechanism, one side of the on-off valve is connected to the vacuum pump, and the other side is connected to the trachea joint, 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 trachea joint, the nitrogen filling device is also provided with a charging hole for filling nitrogen toward the inside of the capsule cup conveying mechanism, a plurality of through holes are provided on the upper part of the filling protection chamber, the nitrogen filling vacuum lifting mechanism is a lifting cylinder, and a movement gap margin is left between the filling protection chamber and the nitrogen filling transmission placement block, and the movement gap margin is 1 mm.

[0021] Compared with the prior art, the present invention discloses an automatic coffee capsule filling and sealing machine, including a filling mechanism, a powder compacting mechanism, a sealing film punching and sealing mechanism, and a vacuuming and nitrogen filling mechanism, which are used in combination to play a role.

[0022] ① The powder pressing head of the powder compacting mechanism extends into the capsule cup containing the material through the powder lifting cylinder, and drives the powder pressing head to rotate through the powder rotating cylinder to squeeze 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 realizing the compaction of the capsule coffee. The powder pressing head is used to press the material, and the powder dust hood and the powder main board D form a closed cavity to realize dust removal at the mouth of the capsule coffee cup, effectively ensuring that the cup mouth is clean, thereby providing good sealing conditions for the subsequent sealing;

[0023] ② Compared with the traditional structure, the sealing film punching and sealing mechanism is equivalent to a fixed mold, which is fixed on the base, while the traditional structure generally puts the knife on it, which is equivalent to a movable mold. The advantages are: first, the knife is hidden in the base, and the operator will not be injured during maintenance or operation; second, during each cycle of operation, the start and stop positions of the sealing pressure head heating system are separated from the sealing film cutting knife device. For example, when the machine is stopped, the lowest heating block of the sealing pressure head heating system is on the sealing film cutting knife device, which reduces the heat transfer to the sealing cutting knife body, and achieves the coldest possible cutting during punching and cutting, which greatly reduces the generation of burrs, and the punching and sealing of the sealing roll film The sealing and sealing are completed at the same workstation, and the negative pressure suction cup of the negative pressure system of the sealing head sucks the sealing film roll, ensuring the concentricity of the punched sealing film roll, the heating block, and the mouth of the capsule coffee cup, thereby ensuring excellent sealing airtightness. The sealing film cutting device adopts a hidden elastic floating design, so that the sealing cutter body is retracted in the sealing film cutting device in the daily shutdown state. The modular and detachable design of the sealing head heating adsorption system is convenient for replacing spare parts such as thermocouples and heating blocks during later use. The fast-heating ceramic heat sealing system can quickly meet the production conditions. The fast-heating ceramic heat sealing system can quickly meet the production conditions.

[0024] ③ The filling protection chamber of the vacuum nitrogen filling mechanism wraps the outside of the capsule cup conveying mechanism to form a positive pressure nitrogen environment, which can replace the air in the empty capsule cup and provide a positive pressure nitrogen environment for each workstation that can be embedded in the filling protection chamber. The vacuum nitrogen filling mechanism vacuums the capsule cup filled with materials, directly sucks away the air, and replenishes nitrogen into the capsule cup, achieving an almost oxygen-free environment in the capsule cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the automatic coffee capsule filling and sealing machine of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the automatic coffee capsule filling and sealing machine of the present invention;

[0027] Figure 3 It is a structural reference schematic diagram of the filling mechanism of the present invention;

[0028] Figure 4 A structural reference diagram of the filling mechanism of the present invention

[0029] Figure 5 It is a structural schematic diagram of the powder compaction mechanism;

[0030] Figure 6 It is a structural schematic diagram of the powder compacting mechanism of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the powder compacting mechanism of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the powder compacting mechanism of the present invention;

[0033] Fig. 9 It is a schematic cross-sectional view of the structure of the powder compacting mechanism of the present invention;

[0034] Fig.10 It is a partially enlarged schematic diagram of the powder compacting mechanism of the present invention;

[0035] Fig.11 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0036] Fig.12 It is a half-section schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0037] Fig.13 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0038] Fig.14 It is a structural schematic diagram of the sealing pressure head device of the present invention;

[0039] Fig.15 It is a structural schematic diagram of the sealing pressure head device of the present invention;

[0040] Fig.16 It is a structural schematic diagram of the sealing pressure head device of the present invention;

[0041] Fig.17 It is a partial cutaway schematic diagram of the sealing pressure head heating adsorption system of the present invention;

[0042] Fig.18 It is a structural schematic diagram of the sealing and film pressing cutting knife device of the present invention;

[0043] Fig.19It is a partial cutaway schematic diagram of the sealing and film pressing cutting device of the present invention;

[0044] Fig. 20 It is a partial cutaway schematic diagram of the sealing and film pressing cutting device of the present invention;

[0045] Fig.21 It is a cross-sectional schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0046] Fig. 22 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0047] Fig.23 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0048] Fig.24 It is a structural schematic diagram of the sealing film punching and sealing mechanism of the present invention;

[0049] Fig.25 It is a structural schematic diagram of the vacuuming and nitrogen filling mechanism of the present invention;

[0050] Fig.26 It is a structural schematic diagram of the capsule cup conveying mechanism of the present invention;

[0051] Fig. 27 It is a structural schematic diagram of the capsule cup conveying mechanism of the present invention;

[0052] Fig.28 It is a working schematic diagram of the nitrogen-filled vacuum cover and the nitrogen-filled vacuum lifting mechanism of the present invention;

[0053] Fig.29 It is a working schematic diagram of the nitrogen-filled vacuum cover and the nitrogen-filled vacuum lifting mechanism of the present invention;

[0054] Fig.30 It is a working schematic diagram of the nitrogen-filled vacuum cover and the nitrogen-filled vacuum lifting mechanism of the present invention;

[0055] Fig.31 Schematic diagram for reference of the cup dropping mechanism in the embodiment of the present invention. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0057] An automatic coffee capsule filling and sealing machine comprises a filling mechanism 1, a powder compacting mechanism 2, a sealing film punching and sealing mechanism 3, and a vacuuming and nitrogen filling mechanism 4. The filling mechanism 1, the powder compacting mechanism 2, and the sealing film punching and sealing mechanism 3 are arranged corresponding to the vacuuming and nitrogen filling mechanism 4 in sequence.

[0058] The powder compacting mechanism 2 includes a powder mechanism main board 21, a powder lifting device 22, a powder pressing device 23, and a dust suction elastic sealing device 24. The powder lifting device 22 is arranged on the powder mechanism main board 21. The powder pressing device 23 is fixed on the powder mechanism main board 21, and one end is connected to extend to the inside of the dust suction elastic sealing device 24. The dust suction elastic sealing device 24 is connected to the powder mechanism main board 21. The powder mechanism main board 21 includes a powder main board A211, a powder main board B212, a powder main board C213, and a powder main board D214. The powder lifting device 22 includes a powder lifting cylinder 221. , powder bearing seat 222, powder sliding shaft 223, the powder lifting cylinder 221 is fixed on the powder main board A211, the powder bearing seat 222 is fixed on the powder main board A211, the powder sliding shaft 223 is connected to the powder main board C213 after passing through the powder main board A211 and the powder main board B212, and 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. In order to prevent the powder pressing head 235 is powder-adhesive, and a special coating treatment is performed on the powder press head 235. The powder rotating cylinder 231 is arranged on the powder main board B212. One end of the powder transition shaft 233 is connected to the powder rotating cylinder 231 through a powder coupling 232. The other end of the powder transition shaft 233 passes through a powder bearing positioning seat 234 to connect the powder press head 235. The powder bearing positioning seat 234 is arranged on the powder main board C213. The dust suction elastic sealing device 24 includes a powder dust suction cover 241 and a dust suction elastic mechanism 242. The powder dust suction cover 241 is connected to the powder main board C213 through the dust suction elastic mechanism 242. Next, the powder dust hood 241 is provided with a powder dust suction pipe 2411, and the dust suction 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 hood 241 and the powder main board C213, one end of the powder movable column 2422 is fixed on the powder dust hood 241, and the other end is movably connected to the powder main board C213 in a limiting manner. The powder main board D214 is a conveying plate, and a placement slot is provided on the powder main board D214. The conveying plate is a moving component on the conveyor belt of the assembly line that cooperates with this solution, and no further elaboration is made again.

[0059] Working mode: When the powder main board D214 drives the capsule cup to be conveyed on the conveyor belt to the bottom of the powder pressing device 23, the powder lifting cylinder 221 drives the powder main board C213 to descend, thereby driving the powder dust hood 241 to press the powder main board D214, and the powder pressing head 235 extends into the capsule cup to directly contact the material. At the same time, the powder rotating cylinder 231 works 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.

[0060] While the powder pressing head 235 is pressing the material, the powder suction pipe 2411 is in operation to suction the cavity in the powder suction cover 241, and to suction away the dust at the mouth of the capsule cup, thereby preventing the mouth of the capsule from being contaminated and affecting the sealing of the subsequent workstations. In addition, by pressing the material in the capsule cup with the powder pressing head 235, the material in the capsule cup will not be sucked away during the suction action.

[0061] The sealing film punching and sealing mechanism 3 includes a sealing film roll conveying system 31, a sealing total driving mechanism 32, a sealing head device 33, and a sealing film pressing and cutting knife device 34. The sealing total driving mechanism 32 is connected to the sealing head device 33. The sealing film pressing and cutting knife device 34 is located below the sealing head device 33. The sealing film roll conveying system 31 is located on both sides of the sealing film pressing and cutting knife device 34. The sealing head device 33 and the sealing film pressing and cutting knife device 34 are concentrically arranged.

[0062] The sealing and film pressing and cutting knife device 34 includes a sealing and film pressing base 341, a sealing and film pressing telescopic device 342, a sealing and film pressing clamping plate 343, a sealing and cutting knife pressing plate 344, a sealing and cutting knife elastic member 345, a sealing and cutting knife limiting shaft 346, and a sealing and cutting knife body 347. The sealing and film pressing telescopic device 342 is arranged on the sealing and film pressing base 341, and the telescopic end is connected to the sealing and film pressing clamping plate 343 below the sealing and film pressing base 341. The sealing and cutting knife pressing plate 344 is limitedly arranged on the sealing and cutting knife limiting shaft 346, and can be embedded in the groove body of the sealing and film pressing base 341 on all sides. The sealing and cutting knife elastic member 345 is arranged on the sealing and cutting knife limiting shaft 346, and the sealing and cutting knife body 347 is connected to the sealing and cutting knife pressing plate 344.

[0063] In the normal non-working state, the bottom end of the sealing cutter body 347 is always retracted in the sealing film pressing cutter device 34, keeping a distance from the roll film, effectively avoiding contact between the operator and the blade, thereby effectively avoiding damage from the blade.

[0064] The sealing film roll conveying system 31 includes a sealing film roll roller 311 and a sealing film roll 312 . The sealing film roll roller 311 is arranged on both sides of the sealing film pressing and cutting knife device 34 . The sealing film roll 312 contacts the sealing film roll roller 311 and transitions between the sealing film pressing and cutting knife devices 34 .

[0065] The total 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 limitedly set on the sealing slide rail 322.

[0066] 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 driving 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.

[0067] The sealing pressure head substrate 331 is connected to the sealing total driving mechanism 32, the sealing pressure head cylinder 332 is fixed on both sides of the sealing pressure head substrate 331, the sealing pressure head cylinder 332 is connected to the sealing pressure head cylinder driving block 335, the sealing pressure head bearing seat 334 is fixed on the sealing pressure head substrate 331, and one end of the sealing pressure head connecting shaft 333 is sleeved inside, the sealing pressure head connecting shaft 333 is fixed on the sealing pressure head cylinder driving block 335, the other end of the sealing pressure head connecting shaft 333 is connected to the sealing pressure head punching pressure head 336, the sealing pressure head fixed seat 337 is connected to the sealing pressure head substrate 331, the sealing pressure head heating system 3391 is connected to the sealing pressure head fixed seat 337 through the sealing pressure head fixed shaft 338, and the sealing pressure head heating adsorption system 339 is connected to the sealing pressure head fixed shaft 338.

[0068] The sealing head fixing seat 337 is detachably mounted on the sealing head base plate 331, and the sealing head heating system 3391 and the sealing head negative pressure system 3392 in the sealing head heating and adsorption system 339 are modularly designed, which can facilitate the later replacement of spare parts such as the heating block 33911 or the negative pressure suction cup 33921.

[0069] The sealing pressure head heating and adsorption system 339 includes a sealing pressure head heating system 3391 and a sealing pressure head negative pressure system 3392. The sealing pressure head negative pressure system 3392 is arranged inside the center of the sealing pressure head heating system 3391. A negative pressure suction cup 33921 ​​is provided at the end of the sealing pressure head negative pressure system 3392. A heating block 33911 is provided at the end of the sealing pressure head heating system 3391.

[0070] The sealing head heating system 3391 is a ceramic heat sealing system, which quickly heats the heating block 33911. Compared with the traditional heating tube that takes 5 minutes to heat up to 150-200°C, the ceramic heat sealing system only takes 1 minute to complete the heating. It is worth noting that although the ceramic heat sealing system has no outstanding improvements, the key point is to ensure the concentricity of the sealing roll film 312, the heating block 33911 and the mouth of the capsule coffee cup, thereby ensuring excellent sealing airtightness. In addition, the modular and detachable design facilitates the replacement of spare parts such as thermocouples and heating blocks 33911 during later use, and the fast-heating ceramic heat sealing system can quickly meet production conditions.

[0071] The center position of the negative pressure suction cup 33921 ​​is in an X-shaped hollow shape.

[0072] Working mode: The sealing film roll roller 311 drives the sealing film roll 312 to move in steps. After one stepping cycle, the sealing film pressing telescopic device 342 contracts, and the sealing film pressing clamp 343 and the sealing film pressing base 341 are fitted to clamp the sealing film roll 312. 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. The sealing pressure head cylinder 332 is in the extended state at this time. When the sealing pressure head device 33 is lowered, the sealing pressure head punching pressure head 336 contacts and presses down the sealing cutter pressing plate 344. The sealing cutter pressing plate 344 squeezes the sealing cutter elastic member 345 to drive the sealing cutter body 347 to complete the punching work of the sealing film roll 312. At the same time, the negative pressure suction cup 33921 ​​of the sealing pressure head negative pressure system 3392 absorbs the cut sealing film roll 312, and the punched sealing film roll 312 is located in the negative pressure The suction cup 33921 ​​is in the center position to ensure the overall concentricity, and the sealing head cylinder 332 is reset. At this time, the sealing head punching head 336 leaves the sealing cutter plate 344, and the sealing cutter body 347 retracts and returns 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 sealing film roll 312 cut by punching, and the cup mouth of the capsule coffee cup are in contact. The sealing film roll 312 completes the heat sealing work under the sealing temperature and pressure of the heating block 33911. When the sealing is completed, the negative pressure suction cup 33921 ​​in the center of the sealing module deflates and no longer adsorbs the sealing film roll 312. After completing the above actions, the sealing drive motor 321 reverses to drive the sealing head device 33 to move upward and return to the original position. At this point, a cycle action is completed.

[0073] The vacuum nitrogen filling mechanism 4 includes a nitrogen filling vacuum cover 41, a nitrogen filling vacuum lifting mechanism 42, a capsule cup conveying mechanism 43, and a filling protection chamber 44. The nitrogen filling vacuum cover 41 is connected to the nitrogen filling vacuum lifting mechanism 42, and is arranged 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. A nitrogen filling filter is arranged inside the nitrogen filling vacuum cover 41, and a trachea joint 411 is arranged on one side of the nitrogen filling vacuum cover 41. The capsule cup conveying mechanism 43 includes a nitrogen filling transmission drive 431 and a nitrogen filling transmission placement block 432. The nitrogen filling transmission placement block 432 is sequentially connected to the nitrogen filling transmission drive 431 in an array. The nitrogen filling transmission drive 431 can be a belt drive or a chain drive, etc., which can drive the nitrogen filling transmission placement block 432 to rotate tightly in a cycle. The nitrogen filling transmission placement block 432 is provided with a capsule cup Placement hole, the capsule cup conveying mechanism 43 is also provided with an on-off valve, a vacuum pump, a nitrogen filling valve, and a nitrogen filling device. One side of the on-off valve is connected to the vacuum pump, and the other side is connected to the trachea joint 411. 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 trachea joint 411. The nitrogen filling device is also provided with an inflation hole for filling nitrogen toward the inside of the capsule cup conveying mechanism 43. A plurality of through holes are provided on the upper part of the filling protection chamber 44. The nitrogen filling vacuum lifting mechanism 42 is a lifting cylinder. A movement gap margin is left between the filling protection chamber 44 and the nitrogen filling transmission placement block 432. The movement gap margin is 1mm. Of course, a reasonable movement gap margin can also be formulated according to actual work requirements to meet the requirements of not affecting the movement of the nitrogen filling transmission placement block 432, and ensuring that the nitrogen continuously filled into the inflation hole of the nitrogen filling equipment expands in the filling protection chamber 44 without excessive leakage.

[0074] In the relatively sealed environment formed by the capsule cup conveying mechanism 43 in the filling protection chamber 44, there are some supporting equipment such as nitrogen pressure detection meter, nitrogen flow detection switch, nitrogen concentration detector, vacuum pressure detection meter, trachea accessories, etc., which are not listed one by one in this scheme. The staff can decide according to the actual situation when implementing. When the nitrogen content in the overall filling protection chamber 44 is insufficient, the nitrogen is continuously filled into the filling hole of the nitrogen filling equipment. When the nitrogen filling transmission placement block 432 drives the capsule cup to the position of the nitrogen filling vacuum cover 41, the nitrogen filling vacuum lifting mechanism 42 on both sides of the inside and outside starts to work to push the nitrogen filling vacuum cover 41. The nitrogen filling vacuum cover 41 presses against the nitrogen filling transmission placement block 432 up and down to form a closed cavity environment. The on-off valve starts the vacuum pump to evacuate the closed cavity. Since a nitrogen filling filter is arranged in the vacuum cover, it is ventilated but not powder, achieving the purpose of only extracting air and not absorbing materials. When the vacuum pressure reaches the set value, stop evacuating. The nitrogen filling valve is started to further replenish nitrogen into the closed cavity. In this way, there is almost no air in the capsule cup containing materials. After the vacuuming and nitrogen filling action is completed, the internal and external nitrogen filling vacuum lifting mechanism 42 is reset, and the capsule cup containing materials is still in a positive pressure nitrogen environment. The nitrogen filling transmission drive 431 drives the nitrogen filling transmission placement block 432 of the capsule cup containing materials to run to the next sealing station to complete the subsequent sealing of the capsule cup. In this way, a cup of qualified capsule products with almost no oxygen can be obtained, and the nitrogen filling transmission placement block 432 continuously drives the coffee capsule cup in the middle to move forward at various working positions.

[0075] In addition, the reference figure of the filling mechanism 1 is as follows Figure 3 and Figure 4 As shown, the filling mechanism 1 is a screw filling form in this embodiment, and of course it can also be other forms of filling. The screw filling form is only one of several forms, and the main invention lies in the powder compacting mechanism 2, the sealing film punching and sealing mechanism 3, and the vacuum nitrogen filling mechanism 4, so it is not elaborated in this embodiment. In addition, the filling protection chamber 44 is provided with corresponding working holes for the mechanisms required for the upper work. Fig.31 The cup dropping mechanism shown is also for reference and is not a mandatory option in this embodiment.

[0076] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0077] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic coffee capsule filling and sealing machine, characterized in that: The invention comprises a filling mechanism (1), a powder compacting mechanism (2), a sealing film punching and sealing mechanism (3), and a vacuuming and nitrogen filling mechanism (4); the filling mechanism (1), the powder compacting mechanism (2), and the sealing film punching and sealing mechanism (3) are arranged in sequence corresponding to the vacuuming and nitrogen filling mechanism (4).

2. The automatic coffee capsule filling and sealing machine according to claim 1, characterized in that: The powder compacting mechanism (2) comprises a powder mechanism main board (21), a powder lifting device (22), a powder pressing device (23), and a dust suction elastic sealing device (24); the powder lifting device (22) is arranged 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 the powder pressing device is connected and extends to the inside of the dust suction elastic sealing device (24); and the dust suction elastic sealing device (24) is connected to the powder mechanism main board (21).

3. The automatic coffee capsule filling and sealing machine according to claim 2, characterized in that: The powder mechanism main board (21) comprises a powder main board A (211), a powder main board B (212), a powder main board C (213), and a powder main board D (214); the powder lifting device (22) comprises a powder lifting cylinder (221), a powder seat bearing (222), and a powder sliding shaft (223); the powder lifting cylinder (221) is fixed on the powder main board A (211); the powder seat bearing (222) is fixed on the powder main board A (211); the powder sliding shaft (223) is connected to the powder main board C (213) after passing through the powder main board A (211) and the powder main board B (212); and the cross section between the powder sliding shafts (223) The beam is connected to the telescopic end of the powder lifting cylinder (221); the powder pressing device (23) comprises 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); the powder rotating cylinder (231) is arranged on the powder main board B (212); one end of the powder transition shaft (233) is connected to the powder rotating 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 is connected to the powder pressing head (235); and the powder bearing positioning seat (234) is arranged on the powder main board C (213).

4. The automatic coffee capsule filling and sealing machine according to claim 3 is characterized in that: The dust suction elastic sealing device (24) comprises a powder dust suction hood (241) and a dust suction elastic mechanism (242). The powder dust suction hood (241) is connected to the powder main board C (213) via the dust suction elastic mechanism (242). The powder dust suction hood (241) is provided with a powder dust suction pipe (2411). The dust suction elastic mechanism (242) comprises a powder spring (2421) and a powder movable column (2422). Two ends of the powder spring (2421) are respectively connected to the powder dust suction hood (241) and the powder main board C (213). One end of the powder movable column (2422) is fixed to the powder dust suction hood (241), and the other end is movably connected to the powder main board C (213) in a limiting manner. The powder main board D (214) is a conveying plate, and a placement groove is provided on the powder main board D (214).

5. The automatic coffee capsule filling and sealing machine according to claim 1, characterized in that: The sealing film punching and sealing mechanism (3) comprises a sealing film roll conveying system (31), a sealing main driving mechanism (32), a sealing pressure head device (33), and a sealing film pressing and cutting knife device (34); the sealing main driving mechanism (32) is connected to the sealing pressure head device (33); the sealing film pressing and cutting knife device (34) is located below the sealing pressure head device (33); the sealing film roll conveying system (31) is located on both sides of the sealing film pressing and cutting knife device (34); the sealing pressure head device (33) and the sealing film pressing and cutting knife device (34) are concentrically arranged; The sealing film pressing and cutting knife device (34) comprises a sealing film pressing base (341), a sealing film pressing and retracting device (342), a sealing film pressing clamp (343), a sealing and cutting knife pressing plate (344), a sealing and cutting knife elastic member (345), a sealing and cutting knife limiting shaft (346), and a sealing and cutting knife body (347). The sealing and film pressing and retracting device (342) is arranged on the sealing and film pressing base (341), and the retracting end is connected to the sealing and film pressing base (341). The sealing film pressing clamp (343) is connected to the bottom of the sealing film pressing base (341); the sealing cutter pressing plate (344) is limitedly arranged on the sealing cutter limiting shaft (346) and can be embedded in the groove body of the sealing film pressing base (341) on all sides; the sealing cutter elastic member (345) is arranged on the sealing cutter limiting shaft (346); and the sealing cutter body (347) is connected to the sealing cutter pressing plate (344).

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

7. The automatic coffee capsule filling and sealing machine according to claim 5, characterized in that: The sealing head device (33) comprises 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 driving 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 pressure head substrate (331) is connected to the sealing main driving mechanism (32); the sealing pressure head cylinder (332) is fixed on both sides of the sealing pressure head substrate (331); the sealing pressure head cylinder (332) is connected to the sealing pressure head cylinder driving block (335); the sealing pressure head bearing seat (334) is fixed on the sealing pressure head substrate (331) and has one end of a sealing pressure head connecting shaft (333) sleeved therein; the sealing pressure head connecting shaft (333) is fixed on the sealing pressure head substrate (331); The sealing head cylinder driving block (335) is connected to the sealing head punching head (336) at the other end of the sealing head connecting shaft (333); 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); and the sealing head heating adsorption system (339) is connected to the sealing head fixing shaft (338).

8. The automatic coffee capsule filling and sealing machine according to claim 5, characterized in that: The sealing pressure head heating and adsorption system (339) comprises a sealing pressure head heating system (3391) and a sealing pressure head negative pressure system (3392). The sealing pressure head negative pressure system (3392) is arranged inside the center of the sealing pressure head heating system (3391). A negative pressure suction cup (33921) is arranged at the end of the sealing pressure head negative pressure system (3392). A heating block (33911) is arranged at the end of the sealing pressure head heating system (3391). The sealing pressure head heating system (3391) is a ceramic heat sealing system, and the center position of the negative pressure suction cup (33921) is an X-shaped hollow shape.

9. The automatic coffee capsule filling and sealing machine according to claim 1, characterized in that: The vacuum nitrogen filling mechanism (4) comprises a nitrogen filling vacuum cover (41), a nitrogen filling vacuum lifting mechanism (42), a capsule cup conveying mechanism (43), and a filling protection chamber (44); the nitrogen filling vacuum cover (41) is connected to the nitrogen filling vacuum lifting mechanism (42) and is arranged on the corresponding inner and outer sides of the capsule cup conveying mechanism (43); and the filling protection chamber (44) is wrapped around the outer side of the capsule cup conveying mechanism (43).

10. The automatic coffee capsule filling and sealing machine according to claim 9, characterized in that: The nitrogen filling vacuum cover (41) is provided with a nitrogen filling filter screen inside, and a trachea joint (411) is provided on one side of the nitrogen filling vacuum cover (41). The capsule cup conveying mechanism (43) comprises a nitrogen filling transmission drive (431) and a nitrogen filling transmission placement block (432). The nitrogen filling transmission placement block (432) is sequentially connected to the nitrogen filling transmission drive (431) in an array, and a capsule cup placement hole is provided on the nitrogen filling transmission placement block (432). The capsule cup conveying mechanism (43) is also provided with an on-off valve, a vacuum pump, a nitrogen filling valve, and a nitrogen filling device. One side of the on-off valve is connected to a vacuum pump, and the other side is connected to an air pipe joint (411); one side of the nitrogen filling valve is connected to a nitrogen filling interface of a nitrogen filling device, and the other side is connected to an air pipe joint (411); the nitrogen filling device is also provided with a filling hole for filling nitrogen toward the inside of a capsule cup conveying mechanism (43); a plurality of through holes are provided on the upper part of the filling protection chamber (44); the nitrogen filling vacuum lifting mechanism (42) is a lifting cylinder; a movement gap margin is left between the filling protection chamber (44) and the nitrogen filling transmission placement block (432); and the movement gap margin is 1 mm.

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