A coffee liquid extraction process and an extraction device thereof

Abstract

The present application relates to coffee processing technical field, especially a kind of coffee liquid extraction device, comprising: rack;Extraction tank is installed on the rack, wherein the inside of the extraction tank has a terrace part;Opening mechanism is vertically moved above the extraction tank by drive assembly, the opening mechanism is used to open the mouth of coffee capsule, to discharge coffee powder into extraction tank, the present application is by with the mouth film of coffee capsule face down is thrown into above-mentioned input hole, when displacement mechanism drives coffee capsule to move to separate from the below of input hole, under the upper limit of upper cover, there is puncture mechanism to puncture the mouth film, to throw coffee powder into extraction tank, to effectively solve the problem of existing coffee capsule opening inconvenience, while automatic operation, reduce the possibility of coffee capsule pollution, to ensure the taste and safety of coffee.

Description

Technical Field

[0001] This invention relates to the field of coffee processing technology, and in particular to an extraction process and extraction apparatus for coffee liquid. Background Technology

[0002] In chemistry, extraction refers to extracting valuable substances (flavor) from raw materials (coffee beans). In coffee extraction, it means using water to extract flavor from coffee grounds. Common extraction methods include drip, pressure, and siphon. Among them, drip is the simplest and most convenient to operate and is more widely used.

[0003] Existing coffee extraction devices require manual removal of the sealing film at the opening of the coffee capsule before the coffee powder is poured into the extraction tank. This method not only requires external tools, but also causes coffee powder to spill and be wasted during the opening process. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings in the prior art by proposing a coffee liquid extraction process and extraction device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: Design a coffee extraction device, including: frame; An extraction vessel is mounted on the frame, wherein the inner side of the extraction vessel has a stepped section; An opening mechanism, which moves vertically above the extraction vessel via a drive assembly, is used to open the coffee capsule to discharge coffee powder into the extraction vessel. The bottom edge of the opening mechanism can abut against the stepped platform.

[0006] Furthermore, the opening mechanism includes an upper cover plate, a middle frame, and a lower cover plate; The upper cover plate is connected to the drive assembly, and an insertion hole is provided on the end face of the upper cover plate. A displacement mechanism is provided at the top of the middle frame, which is used to move the coffee capsule to a side away from the inlet hole; A piercing mechanism is also provided at the bottom of the middle frame, which is used to pierce the sealing film of the coffee capsule; The middle frame also has an arc-shaped groove, and a stop ring is provided on the outer side of the arc-shaped groove. The stop ring is used to limit the position of the coffee capsule.

[0007] Furthermore, the displacement mechanism includes a rocker arm, which is pinned to the middle frame. The rocker arm has a Y-shaped structure, and an elastic element is provided between one side of the rocker arm and the middle frame. The swing arm is in its initial state with its opening offset from the input hole, and the upper cover plate also has a reciprocating assembly for driving the swing arm to rotate.

[0008] Furthermore, the reciprocating assembly includes a rotating shaft rotatably connected to the inner side of the upper cover plate, a first shaped gear is fixedly installed at the bottom of the rotating shaft, and a second shaped gear is also provided at the tail end of the swing arm, wherein the first shaped gear can intermittently mesh with the second shaped gear. The rotating shaft is connected to the drive assembly for transmission.

[0009] Furthermore, the drive assembly includes a telescopic component installed on the top of the frame. A cavity is provided inside the shaft end of the telescopic component. A helical rod A is connected to the cavity through a rotating seat. The shaft end of the helical rod A passes through the upper cover plate and is connected to the rotating shaft through a belt and a pulley. An elastic telescopic rod is also provided between the frame and the upper cover plate.

[0010] Furthermore, the stop ring also has a discharge hole, the inner edge of which is flush with the inner edge of the stop ring. The inner edge of the arc-shaped groove is at a threshold distance from the stop ring.

[0011] Furthermore, several elastic clips are provided below the discharge hole, and these elastic clips are circumferentially distributed to hold the coffee capsule box.

[0012] Furthermore, a guide slope is provided on the side of the swing arm, and a top rod is installed on the top of the frame. The upper cover plate has a through hole for accommodating the top rod, and the top rod is used to abut against the guide slope so that the center of the opening of the swing arm is located directly below the input hole.

[0013] Furthermore, the piercing mechanism is movably connected to the top plate below the middle frame via a compression spring and a plug rod, and a bayonet is provided at the top of the top plate; Among them, a spiral rod B is fixedly installed at the bottom of the middle frame, and a locking rod is provided on the outside of the spiral rod B. A return spring is sleeved on the outside of the spiral rod B, and a wedge block is movably inserted into the side end of the locking rod through the spring. The wedge block is used to abut against the bottom of the top plate. An abutment tube is also fitted at the free end of the screw rod B. The lower end of the abutment tube passes through the lower cover plate and is used to abut against the platform.

[0014] The present invention also proposes a coffee extraction process that uses the above-mentioned apparatus, and the process includes the following steps; S1. The sealing film of the coffee capsule is inserted downward into the opening mechanism. At this time, the drive component is activated to drive the opening mechanism to move towards the opening of the extraction tank. During this process, the coffee capsule is opened and the coffee powder is poured into the extraction tank. S2. After that, the opening mechanism is moved upward by the drive component to achieve a reset, and water can be added to the extraction tank to carry out the extraction and filtration work. The extracted coffee liquid flows outward along the bottom of the extraction tank.

[0015] The present invention proposes a coffee extraction process and extraction device, the advantages of which are as follows: the present invention inserts the coffee capsule with the sealing film facing down into the above-mentioned inlet hole. At this time, the displacement mechanism drives the coffee capsule to move away from the bottom of the inlet hole. Under the action of the upper limit of the top cover, the piercing mechanism pierces the sealing film to put the coffee powder into the extraction tank, thereby effectively solving the problem of the inconvenience of opening existing coffee capsules. At the same time, the automated operation reduces the possibility of coffee capsule contamination, so as to ensure the taste and safety of coffee. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 Explosion of the opening mechanism of the present invention Figure 1 ; Figure 3 This is a cross-sectional view of the opening mechanism of the present invention; Figure 4 This is a schematic diagram of the opening mechanism of the present invention with the top cover plate removed; Figure 5 Explosion of the opening mechanism of the present invention Figure 2 ; Figure 6 The three-dimensional middle frame of the present invention Figure 1 ; Figure 7 The three-dimensional middle frame of the present invention Figure 2 ; Figure 8 This is the main view of the middle frame of the present invention.

[0017] In the diagram: 1. Frame; 2. Extraction tank; 21. Ladder section; 3. Opening mechanism; 31. Upper cover plate; 311. Inlet hole; 32. Middle frame; 33. Lower cover plate; 34. Displacement mechanism; 341. Swing rod; 342. Elastic element; 343. First shaped gear; 344. Second shaped gear; 345. Guide slope; 346. Top rod; 35. Puncture mechanism; 351. Compression spring; 352. Insert rod; 353. Top plate; 354. Bayonet; 355. Spiral rod B; 356. Locking rod; 357. Return spring; 358. Wedge block; 359. Contact tube; 36. Arc groove; 37. Stop ring; 38. Discharge hole; 381. Elastic clamp; 4. Drive assembly; 41. Telescopic element; 42. Spiral rod A; 43. Elastic telescopic rod. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1 As an embodiment of the present invention, a coffee liquid extraction device is disclosed. The device includes a frame 1, which includes a base pole and an upper fixed seat. A frame is also provided on the outside of the pole. Extraction tank 2 is installed on the frame 1. Specifically, in this embodiment, the extraction tank 2 is inserted into the sleeve frame and locked with bolts to achieve a detachable connection. The inner side of the extraction tank 2 has a stepped section 21. In addition, the bottom of the extraction tank 2 has a liquid outlet. At least a filter screen is provided at the liquid outlet to achieve the filtration and extraction of coffee powder. This method is existing technology and will not be described in detail here. It also includes an opening mechanism 3, which moves vertically above the extraction tank 2 via a drive assembly 4. The opening mechanism 3 is used to open the coffee capsule to discharge coffee powder into the extraction tank 2. The bottom edge of the opening mechanism 3 can abut against the ladder section 21.

[0020] Reference Figure 2-8 In some embodiments, the opening mechanism 3 of the present invention includes an upper cover plate 31, a middle frame 32 and a lower cover plate 33, with the upper cover plate 31 and the lower cover plate 33 fitted above and below the middle frame 32, respectively. The upper cover plate 31 is connected to the drive assembly 4, and an inlet hole 311 is provided on the end face of the upper cover plate 31. The inlet hole 311 has a circular structure to facilitate the insertion of coffee capsules. Reference Figure 2A displacement mechanism 34 is provided at the top of the middle frame 32. The displacement mechanism 34 is used to move the coffee capsule to a side away from the inlet hole 311. The purpose of this design is to cooperate with the subsequent piercing mechanism 35 to prevent the coffee capsule from moving upward when the piercing mechanism 35 pierces the sealing film of the coffee capsule upward. A piercing mechanism 35 is also provided at the bottom of the middle frame 32, which is used to pierce the sealing film of the coffee capsule. The middle frame 32 also has an arc-shaped groove 36, and a stop ring 37 is provided on the outside of the arc-shaped groove 36. The stop ring 37 is used to limit the position of the coffee capsule.

[0021] Specifically, when using this invention, the coffee capsule is inserted into the aforementioned insertion hole 311 with the sealing film side down. At this time, the displacement mechanism 34 drives the coffee capsule to move away from below the insertion hole 311. Under the upper limit action of the upper cover plate 31, the piercing mechanism 35 pierces the sealing film to put the coffee powder into the extraction tank 2, thereby effectively solving the problem of inconvenient opening of existing coffee capsules. At the same time, the automated operation reduces the possibility of coffee capsule contamination, thus ensuring the taste and safety of the coffee.

[0022] Reference Figure 4 , 6 For example, the displacement mechanism 34 in this invention includes a rocker arm 341, which is pinned to the middle frame 32. The rocker arm 341 has a Y-shaped structure. An elastic element 342 is provided between one side of the rocker arm 341 and the middle frame 32. In this embodiment, the elastic element 342 is designed as a spring. Reference Figure 6 In the initial state, the swing arm 341 is positioned with its opening offset from the inlet hole 311. In this embodiment, in the initial state, one of the forked parts of the swing arm 341 is located directly below the inlet hole 311. The purpose of this is that when the swing arm 341 is not rotated, it is blocked by the branch of the swing arm 341, preventing inlet insertion. This ensures that the inlet hole 311 can only be used to add coffee capsules at a threshold position. The threshold position will be described in detail later and will not be elaborated on here. The upper cover plate 31 also has a reciprocating assembly for driving the swing arm 341 to rotate.

[0023] Reference Figure 4 , 6 Based on the above embodiments, the reciprocating assembly of the present invention includes a rotating shaft rotatably connected to the inner side of the upper cover plate 31, a first irregular gear 343 fixedly installed at the bottom of the rotating shaft, and a second irregular gear 344 at the tail end of the swing rod 341. The first irregular gear 343 can intermittently mesh with the second irregular gear 344. Reference Figure 1 Furthermore, the drive assembly 4 includes a telescopic member 41 installed on the top of the frame 1. In this embodiment, the telescopic member 41 is configured as one of a cylinder, a hydraulic cylinder, or an electric push rod. A cavity is provided on the inner side of the shaft end of the telescopic member 41. A helical rod A42 is connected to the cavity through a rotating seat. The shaft end of the helical rod A42 passes through the upper cover plate 31 and is connected to the rotating shaft through a belt and a pulley. Among them, an elastic telescopic rod 43 is also provided between the frame 1 and the upper cover plate 31. The elastic telescopic rod 43 is a telescopic rod with a built-in spring. Its purpose is to limit the circumferential movement of the entire opening mechanism 3 to prevent it from rotating circumferentially.

[0024] In other words, when the telescopic member 41 drives the opening mechanism 3 to move downward through the spiral rod A42, after the lower cover plate 33 abuts against the ladder section 21, the spiral rod A42 rotates under force. At the same time as the spiral rod A42 rotates, it drives the rotating shaft to rotate through the pulley and belt, so as to drive the first irregular gear 343 to rotate circumferentially. Since the first irregular gear 343 and the second irregular gear 344 mesh intermittently, the elastic member 342 can achieve the reciprocating swing effect of the swing rod 341 to shake the punctured coffee capsule back and forth, so as to achieve rapid and comprehensive discharge, so that the coffee powder is completely poured into the extraction tank 2.

[0025] Reference Figure 6 Considering that during the reset process of the opening mechanism 3, the aforementioned spiral rod A42 extends under the drive of the elastic telescopic rod 43, and at this time the first irregular gear 343 drives the second irregular gear 344 to reverse, the stop ring 37 in this invention also has a discharge hole 38, and the inner edge of the discharge hole 38 is flush with the inner edge of the stop ring 37. The inner edge of the arc-shaped groove 36 is at a threshold distance from the stop ring 37. The purpose of setting this threshold distance is to limit the bottom edge of the coffee capsule to prevent it from falling completely into the arc-shaped groove 36. The discharge hole 38 is the opposite. When the first irregular gear 343 drives the second irregular gear 344 to reverse, the swing rod 341 reverses. At this time, the coffee capsule after discharge is pushed into the discharge hole 38 to facilitate the recycling of the coffee capsule shell.

[0026] Reference Figure 7 In addition, to prevent the coffee capsule shell from falling directly, a number of elastic clips 381 are provided below the discharge hole 38 in this invention. The elastic clips 381 are distributed circumferentially to hold the coffee capsule box. Obviously, in this invention, each elastic clip 382 should be set at an angle, with the angled direction being the center of the circle formed by them.

[0027] Reference Figure 2 , 4 The threshold opening position of the injection hole 311 is described in detail below. In this embodiment, a guide slope 345 is provided on the side of the swing rod 341, and a top rod 346 is installed on the top of the frame 1. The upper cover plate 31 has a through hole for accommodating the top rod 346. The top rod 346 is used to abut against the guide slope 345 so that the opening center of the swing rod 341 is located directly below the injection hole 311. In other words, when the opening mechanism 3 moves upward to reset, the top rod 346 of the frame can move against the guide slope 345 of the swing rod 341, thereby forcing the opening center of the swing rod 341 to be located directly below the inlet hole 311. In other words, at this position, the user can place the coffee capsule into the inlet hole 311.

[0028] Reference Figure 7 , 8 Furthermore, the piercing mechanism 35 described in this invention is movably connected to the top plate 353 below the middle frame 32 via a compression spring 351 and a plug rod 352, and a bayonet 354 is provided on the top of the top plate 353. Among them, a spiral rod B355 is fixedly installed at the bottom of the middle frame 32, and a locking rod 356 is provided on the outside of the spiral rod B355. A return spring 357 is sleeved on the outside of the spiral rod B355, and a wedge block 358 is movably inserted into the side end of the locking rod 356 through the spring. The wedge block 358 is used to abut against the bottom of the top plate 353. Reference Figure 8 An abutment tube 359 is also sleeved at the free end of the spiral rod B355. The lower end of the abutment tube 359 passes through the lower cover plate 33 and is used to abut against the ladder section 21.

[0029] The specific working method is as follows: when the opening mechanism 3 moves downward, the bottom of the contact tube 359 contacts the aforementioned ladder section 21, so as to force the locking rod 356 to retract and move. Obviously, in this invention, the contact tube 359 moves first, that is to say, the elastic force of the elastic telescopic rod 43 in this invention is greater than the elastic force of the aforementioned compression spring 351 and return spring 357. During the movement of the locking rod 356, it abuts against the top plate 353 and moves upward. At the same time, the locking rod 356 rotates under the drive of the screw rod B355. The top plate 353 drives the piercing knife 354 to pierce the sealing film of the coffee capsule. After that, the locking rod 356 continues to move and rotate until it rotates away from the top plate 353. Under the drive of the compression spring 351, the top plate 353 drives the piercing knife 354 to reset, completing the opening work. After that, as described above, the screw rod A42 retracts, causing the coffee capsule to swing and accelerate the discharge. Afterwards, when the opening mechanism 3 is reset, the reset spring 357 pushes the locking rod 356 to reset, and the wedge block 358 continues to move to the bottom of the top plate 353 via the spring contraction, waiting for the next contact operation.

[0030] Furthermore, this invention also discloses a coffee extraction process that uses the aforementioned apparatus, the process comprising the following steps; S1. The sealing film of the coffee capsule is inserted downward into the opening mechanism 3. At this time, the drive component 4 is turned on to drive the opening mechanism 3 to move towards the opening of the extraction tank 2. During this process, the coffee capsule is opened and the coffee powder is poured into the extraction tank 2. S2. After that, the opening mechanism 3 is moved upward by the drive component 4 to achieve reset, and water can be added to the extraction tank 2 to carry out the extraction and filtration work. The extracted coffee liquid flows outward along the bottom of the extraction tank 2.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A coffee extraction device, characterized in that, include: frame; An extraction vessel is mounted on the frame, wherein the inner side of the extraction vessel has a stepped section; An opening mechanism, driven by a drive assembly, moves vertically above the extraction vessel. The opening mechanism is used to open the coffee capsule to allow coffee powder to be discharged into the extraction vessel. The bottom edge of the opening mechanism can abut against the stepped platform. The opening mechanism includes an upper cover plate, a middle frame, and a lower cover plate. The upper cover plate is connected to the drive assembly, and an insertion hole is provided on the end face of the upper cover plate. A displacement mechanism is provided at the top of the middle frame, which is used to move the coffee capsule to a side away from the inlet hole; A piercing mechanism is also provided at the bottom of the middle frame, which is used to pierce the sealing film of the coffee capsule; The middle frame also has an arc-shaped groove, and a stop ring is provided on the outside of the arc-shaped groove. The stop ring is used to limit the coffee capsule. The displacement mechanism includes a rocker arm, which is pinned to the middle frame. The rocker arm has a Y-shaped structure, and an elastic element is provided between one side of the rocker arm and the middle frame. In the initial state, the swing arm has its opening offset from the input hole. The upper cover plate also has a reciprocating assembly for driving the swing arm to rotate. The reciprocating assembly includes a rotating shaft rotatably connected to the inner side of the upper cover plate. A first shaped gear is fixedly installed at the bottom of the rotating shaft. A second shaped gear is also provided at the tail end of the swing arm. The first shaped gear can intermittently mesh with the second shaped gear. The rotating shaft is connected to the drive assembly for transmission; the drive assembly includes a telescopic component installed on the top of the frame, and a cavity is provided on the inner side of the shaft end of the telescopic component. A helical rod A is connected to the cavity through a rotating seat. The shaft end of the helical rod A passes through the upper cover plate and is connected to the rotating shaft through a belt and a pulley. The mechanism includes an elastic telescopic rod between the frame and the upper cover plate, a guide ramp on the side of the swing rod, and a top rod mounted on the top of the frame. The upper cover plate has a through hole for accommodating the top rod, which abuts against the guide ramp so that the center of the opening of the swing rod is directly below the insertion hole. The piercing mechanism is movably connected to the top plate below the middle frame via a compression spring and a insertion rod, and a bayonet is located on the top of the top plate. Among them, a spiral rod B is fixedly installed at the bottom of the middle frame, and a locking rod is provided on the outside of the spiral rod B. A return spring is sleeved on the outside of the spiral rod B, and a wedge block is movably inserted into the side end of the locking rod through the spring. The wedge block is used to abut against the bottom of the top plate. An abutment tube is also fitted at the free end of the screw rod B. The lower end of the abutment tube passes through the lower cover plate and is used to abut against the platform.

2. The coffee extraction apparatus according to claim 1, characterized in that: The stop ring also has a discharge hole, and the inner edge of the discharge hole is flush with the inner edge of the stop ring. The inner edge of the arc-shaped groove is at a threshold distance from the stop ring.

3. The coffee extraction apparatus according to claim 2, characterized in that: Below the discharge hole, there are several elastic clips arranged in a circular pattern to hold the coffee capsule box.

4. A coffee extraction process using the apparatus as described in any one of claims 1-3, characterized in that, The process includes the following steps; S1. The sealing film of the coffee capsule is inserted downward into the opening mechanism. At this time, the drive component is activated to drive the opening mechanism to move towards the opening of the extraction tank. During this process, the coffee capsule is opened and the coffee powder is poured into the extraction tank. S2. After that, the opening mechanism is moved upward by the drive component to achieve a reset, and water can be added to the extraction tank to carry out the extraction and filtration work. The extracted coffee liquid flows outward along the bottom of the extraction tank.

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