Coffee machine pressing extraction method and device

Abstract

The invention relates to a pressure extraction method and device for a coffee machine, and belongs to the field of coffee machines.The pressure extraction method for the coffee machine comprises the steps that S1, an extraction powder hopper runs on a track in the coffee machine and moves to a powder receiving position, and a powder outlet channel of a bean grinding assembly is automatically opened; s2, a bean grinding assembly is started, the coffee beans are ground into coffee powder, and the coffee powder is output through a powder outlet channel; s3, receiving coffee powder from a powder outlet channel by an extraction powder hopper, automatically controlling the extraction powder hopper to move to an extraction position after receiving a preset amount of coffee powder, and automatically closing the powder outlet channel of the bean grinding assembly; and S4, starting the powder pressing device, compacting the coffee powder in the extraction powder hopper, enabling the powder pressing device and the extraction powder hopper to define a sealed cavity, and injecting hot water into the sealed cavity through the first fluid passage to complete the extraction process. According to the pressure extraction method of the coffee machine, the extraction powder hopper can be automatically controlled to be switched between the powder receiving position and the extraction position through the coffee machine, and the automation degree of operation is improved.

Description

Technical Field

[0001] This invention relates to the field of coffee machines, and in particular to a coffee extraction method and apparatus. Background Technology

[0002] In the traditional workflow of semi-automatic coffee machines, users typically need to manually complete several key steps. For example, after the coffee beans are ground into powder, the user needs to use the extraction container to collect the coffee grounds, and then manually tamp them into a puck using a separate tamper before finally attaching the extraction container to the machine to begin the extraction process. This process results in low coffee extraction efficiency and negatively impacts the user experience. Summary of the Invention

[0003] Therefore, it is necessary to provide a coffee extraction method and device to address the problem that the low coffee extraction efficiency of traditional coffee machines affects the user experience.

[0004] A coffee extraction method for a coffee machine includes: S1, the extraction hopper moves along a track within the coffee machine to the powder receiving position, automatically opening the powder outlet channel of the grinding assembly; S2, the grinding assembly is activated to grind coffee beans into coffee powder, which is then output through the powder outlet channel; S3, the extraction hopper receives the coffee powder from the powder outlet channel, and after receiving a preset amount of coffee powder, the extraction hopper is automatically moved to the extraction position, and the powder outlet channel of the grinding assembly is automatically closed; S4, the tamper is activated to compact the coffee powder in the extraction hopper, forming a sealed cavity with the tamper and the extraction hopper, and hot water is injected into the sealed cavity through a first fluid passage to complete the extraction process; wherein, when the extraction hopper is in the powder receiving position, it is aligned with the powder outlet channel; when the extraction hopper is in the extraction position, it is aligned with the tamper; the powder receiving position and the extraction position are the extreme positions of the extraction hopper's movement.

[0005] The first aspect of this application discloses a coffee maker extraction method. Step S1 enables the extraction hopper to move automatically and automatically open the grinder's outlet channel, laying the foundation for automatic coffee powder collection. Step S2 activates the grinder to grind the coffee and outputs it through the outlet channel, achieving instant grinding and directional output, ensuring coffee powder freshness, avoiding flavor loss due to pre-grinding, and ensuring accurate powder delivery to reduce waste. Step S3 allows the coffee machine to automatically switch the extraction hopper between the receiving and extraction positions. During receiving, it aligns with the outlet channel for precise powder collection, eliminating the need for manual handling of the extraction container and avoiding the spillage problem associated with traditional manual collection. After collecting a preset amount, it automatically moves to the extraction position aligned with the tamper, eliminating the need for manual installation of the extraction hopper. This replaces the traditional step of manually transferring the extraction container, increasing automation, ensuring seamless connection between receiving, tamping, and extraction, and improving overall process efficiency. Step S4 automatically tamps the coffee grounds using the tamper, eliminating the need for manual tampering and avoiding the inconsistencies in flatness caused by manual tampering. This ensures a uniform coffee grounds density. Hot water is then injected through the first fluid path for extraction. The uniform coffee puck ensures thorough and even contact between the hot water and the coffee grounds, improving the stability of the extraction process. Simultaneously, the automated operation reduces the time spent on manual intervention, resolving the low extraction efficiency issues caused by manual tampering and container installation in traditional processes.

[0006] Furthermore, the steps for frothing milk in this application are as follows: steam is output through the second fluid passage to complete the milk frothing process, and the frothed milk is mixed with the extracted coffee liquid. Since the second fluid passage is used to output steam for frothing, it is independent of the first fluid passage and does not interfere with each other. Because the water temperature during extraction is approximately 120 degrees Celsius, and the steam temperature during milk frothing is approximately 150 degrees Celsius, using only one fluid passage for both extraction and frothing would require raising the water temperature after extraction to generate the steam needed for frothing. This application, by using two independent fluid passages for extraction and frothing respectively, reduces the water and steam switching time, thus reducing user waiting time.

[0007] In one embodiment, the specific steps of "outputting steam through the second fluid passage to complete the milk frothing process, and mixing the frothed milk with the extracted coffee liquid" are as follows: The coffee machine receives the third and fourth start commands, which control the second water pump and the second heater to start working and generate steam, respectively. Turn on the steam valve to allow steam to be output through the steam pipe and start frothing the milk; After the milk frothing is complete, the steam valve is closed to stop the steam output. The coffee machine receives the third and fourth stop commands, which control the second water pump and the second heater to stop working respectively. The second water pump, the second heater, the steam valve, and the steam pipe are sequentially connected to form the second fluid passage.

[0008] By controlling the activation of the second water pump and the second heater to generate steam for frothing milk, a stable steam source is provided for the milk frothing process. This design is independent of the water circuit used by the first water pump and the first heater to generate hot water for extraction, which effectively reduces the switching time caused by the difference between water and steam, reduces user waiting time, and improves the user experience.

[0009] In one embodiment, the specific steps of step S1, in which the extraction hopper moves along a track within the coffee machine to the powder receiving position and automatically opens the powder dispensing channel of the grinding assembly, are as follows: S11, Check and ensure that the extraction hopper is installed in place in the coffee machine; S12, The coffee machine receives a first drive command and automatically controls the extraction hopper to move along the track; S13, When the extraction hopper moves to the designated position, the powder dispensing channel is opened; wherein, the designated position is located between the powder receiving position and the extraction position; S14, After the extraction hopper moves to the powder receiving position, it stops moving, at which point the powder dispensing channel is fully open, and the extraction hopper receives the coffee powder output from the powder dispensing channel.

[0010] By checking and ensuring the extraction hopper is properly installed on the coffee machine, a stable foundation is provided for subsequent coffee grounds dispensing, movement, and extraction operations. This prevents displacement, spillage, or extraction abnormalities caused by unstable hopper installation, ensuring the reliability of the entire process. Upon receiving the first drive command, the coffee machine automatically controls the extraction hopper to move towards the dispensing position, eliminating the need for manual adjustment and increasing automation to minimize human intervention and ensure accurate dispensing. When the extraction hopper reaches the designated position between the dispensing and extraction positions, the dispensing channel opens, allowing the hopper to begin collecting coffee grounds immediately, improving dispensing efficiency and thus extraction efficiency. Once the extraction hopper reaches the dispensing position, it stops moving, and the dispensing channel fully opens, ensuring precise alignment between the extraction hopper and the dispensing channel to receive coffee grounds. This guarantees stability in the dispensing process while achieving efficient coffee grounds output through the fully open dispensing channel.

[0011] In one embodiment, during the movement of the extraction hopper from the designated position to the receiving position, the degree of opening of the dispensing channel is inversely proportional to the distance between the extraction hopper and the receiving position. Specifically, a baffle structure 6 is provided at the dispensing channel. When the extraction hopper moves to the designated position, the drive component that drives the extraction hopper to move will abut against the baffle structure 6 and drive the baffle structure 6 to gradually rotate and open the dispensing channel. Moreover, the closer the extraction hopper is to the receiving position, the greater the rotation of the baffle structure 6 driven by the drive component, until the dispensing channel at the receiving position is fully open. This design allows the extraction hopper to begin collecting coffee powder before it is fully aligned, improving coffee powder collection efficiency.

[0012] In one embodiment, as the extraction hopper moves from the designated position to the receiving position, the alignment between the extraction hopper and the dispensing channel is inversely proportional to the distance between the extraction hopper and the receiving position. Specifically, the portion of the dispensing channel aligned with the extraction hopper begins to dispense coffee grounds for easy collection by the extraction hopper; the closer to the receiving position, the more coffee grounds the extraction hopper can collect per unit time. This design allows the dispensing channel to open gradually, improving coffee grounds collection efficiency.

[0013] In one embodiment, the specific steps of step S3, in which the extraction hopper receives coffee powder from the dispensing channel and after receiving a preset amount of coffee powder, automatically controls the extraction hopper to move to the extraction position and the dispensing channel of the grinding assembly to automatically close, are as follows: S31, after receiving the powder, the coffee machine receives a second drive command, automatically controls the extraction hopper to move on the track, and simultaneously controls the dispensing channel to begin closing; S32, when the extraction hopper moves to the designated position, the dispensing channel is completely closed; S33, the extraction hopper continues to move to the extraction position and then stops moving, preparing to enter the pressing extraction process.

[0014] After coffee grounds are dispensed, the extraction hopper automatically moves towards the tamper, simultaneously closing the dispensing channel. This linkage between the hopper's movement and the channel's gradual closure ensures coffee grounds are collected regardless of whether the hopper moves towards or away from the dispensing position, saving time and preventing spillage. The dispensing channel closes completely after the hopper reaches its designated position, preventing coffee residue and spillage that could occur if the hopper leaves the dispensing position before the channel closes, thus reducing waste. The hopper then stops at the extraction position, preparing for the tamping process. The entire process requires no manual intervention, ensuring a smooth transition from dispensing to tamping and improving workflow continuity and automation.

[0015] In one embodiment, the specific steps of activating the tamper in step S4 to compact the coffee powder in the extraction hopper and form a sealed cavity by the tamper and the extraction hopper are as follows: S41, activate the tamper and drive it to move toward the extraction hopper; S42, the tamper enters the extraction hopper and compacts the coffee powder by controlling its axial movement to form a uniform and dense cake; S43, after compaction, control the tamper to stop moving. At this time, the tamper and the extraction hopper form a sealed cavity, ready for hot water injection into the sealed cavity.

[0016] The tamper is activated and driven to move towards the extraction hopper, preparing for subsequent tamping. Specifically, the structure that moves the tamper can be a motor and a screw. The screw's outer thread engages with the tamper, and the screw rotates under the control of the motor, causing the tamper, which is threadedly connected to the screw, to move. After the tamper enters the extraction hopper, it forms a sealed cavity with the extraction hopper; that is, the interior of the extraction hopper contains this sealed cavity. The axial movement compacts the coffee grounds, providing a good foundation for stable extraction. After compaction, the tamper stops moving, and the tamper rests against the coffee puck, ensuring the puck's shape is stable and preventing excessive pressure during subsequent extraction, which could lead to extraction failure.

[0017] In one embodiment, the specific steps of injecting hot water into the extraction hopper through the first fluid passage in step S4 to complete the extraction process are as follows: S44, the coffee machine receives a first start command and a second start command, and controls the first water pump and the first heater to turn on respectively to form hot water; S45, the hot water is injected into the extraction component through the tamper to start extraction; S46, after extraction is completed, the coffee machine receives a first stop command and a second stop command, and controls the first water pump and the first heater to stop working respectively; wherein, the first water pump, the first heater, the tamper and the extraction hopper are sequentially connected to form the first fluid passage.

[0018] By independently controlling the activation of the first water pump and the first heater to generate hot water, the coordinated operation of the first water pump and the first heater ensures that hot water of the correct temperature is precisely generated, providing a stable source of hot water for subsequent extraction. The hot water is injected into the extraction hopper via the tamper to begin extraction. A first fluid passage, connecting the first water pump, the first heater, the tamper, and the extraction hopper in sequence, ensures that the hot water is precisely delivered to the extraction hopper along a fixed path, guaranteeing full contact between the hot water and the coffee grounds and ensuring the orderly progress of the extraction process. After extraction, the first water pump and the first heater are stopped to prevent waste or negative impacts on extraction results caused by continuous hot water generation and delivery, ensuring the precise termination of the extraction process and preparing for subsequent steps.

[0019] In one embodiment, the specific steps after step S46 are as follows: S47, control the tamper to move to squeeze the residue left after extraction and squeeze out the residual coffee liquid; S48, after squeezing is completed, control the tamper to move in the opposite direction so that it exits from the extraction hopper.

[0020] By controlling the movement of the tamper to squeeze out the coffee grounds remaining after extraction, residual coffee liquid can be squeezed out, reducing coffee waste and improving the utilization rate of coffee raw materials. This also prevents residual coffee liquid from remaining in the grounds and affecting subsequent processing. After squeezing, the tamper is moved in the opposite direction and withdrawn from the extraction hopper, allowing the extraction hopper to be smoothly removed and making room for subsequent grounds cleaning, ensuring a smooth cleaning process.

[0021] In one embodiment, the specific steps following step S4 are as follows: S5, remove the extraction hopper, remove the coffee grounds from the hopper, and then reinstall the extraction hopper in the coffee machine for the next extraction. Removing the extraction hopper and removing the internal coffee grounds prevents the accumulation of residual grounds, thus preventing them from deteriorating and affecting the flavor of the next extraction, and also prevents grounds from clogging the extraction hopper. Reinstalling the extraction hopper ensures it is ready for use and prepared for the next extraction process, guaranteeing smooth operation of subsequent steps.

[0022] A coffee machine extraction device includes: a support assembly; a grinding assembly disposed on the support assembly and having a powder outlet channel; a tamper disposed on the support assembly and adjacent to the grinding assembly; a drive assembly disposed on the support assembly; and an extraction hopper disposed on the drive assembly and movable relative to the support assembly under the control of the drive assembly.

[0023] The second aspect of this application discloses a coffee machine extraction device. The support assembly may include the coffee machine's outer casing and internal support structures. The support assembly provides a mounting base for the grinding assembly, tamper, drive assembly, and extraction hopper, ensuring orderly assembly of each component, guaranteeing the stability of the overall structure, and providing support for the coordinated operation of each component. The drive assembly allows control of the extraction hopper's movement towards the powder outlet or tamper, enabling automatic switching between the powder receiving position and the extraction position without manual movement, thus improving the automation level of the operation and ensuring seamless transitions between processes.

[0024] As shown in Figures 1 and 2, in addition to the features of the above embodiments, this embodiment further specifies that: the support component includes a track, the extraction powder hopper is movably coupled with the track, and the track is used to guide the extraction powder hopper to a position below the powder press and the powder outlet channel. Attached Figure Description

[0025] Figure 1 A schematic diagram of the first step of the coffee machine extraction process; Figure 2 This is a schematic diagram of the second process of the coffee machine extraction method. Figure 3 This is a schematic diagram of the specific process of step S1; Figure 4 This is a flowchart illustrating the specific process of step S3; Figure 5 Here is a detailed flowchart of steps S41-S43; Figure 6 Here is a detailed flowchart of steps S44-S46; Figure 7 Here is a detailed flowchart of steps S47-S48; Figure 8 This is a first-dimensional view of the coffee machine; Figure 9 This is a second 3D view of the coffee machine; Figure 10 This is a cross-sectional view of the coffee machine; Figure 11 This is a sectional view of an exploded view of a coffee machine; Figure 12 A cross-sectional view of the powder press, extraction hopper, motor, and screw; Figure 13 An exploded view of a coffee machine; Figure 14 A three-dimensional view of the supporting structure, grinding components, drive components, extraction hopper, baffle structure, motor, steam valve, and steam pipe; Figure 15 Exploded view of the supporting structure, grinding assembly, drive assembly, extraction hopper, baffle structure, motor, steam valve and steam pipe; Figure 16 A perspective view of the coffee grinder assembly and baffle structure; Figure 17 An exploded view of the grinder assembly and baffle structure.

[0026] The correspondence between the reference numerals and the component names is as follows: 1 Support component, 11 Coffee machine casing, 12 Support structure, 121 Track; 2 grinding components, 201 powder outlet channels; 3. Powder tamper; 4. Driver components; 5. Extraction powder hopper; 6-baffle structure; 7 motors; 8 screws; 9. Steam valve; 10. Steam pipes. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0029] Example 1, such as Figure 1-17 As shown, this embodiment discloses a coffee machine extraction method, which includes: S1, the extraction hopper moves along a track inside the coffee machine to the powder receiving position, automatically opening the powder outlet channel of the grinding assembly; S2, the grinding assembly is started to grind coffee beans into coffee powder, which is then output through the powder outlet channel; S3, the extraction hopper receives the coffee powder from the powder outlet channel, and after receiving a preset amount of coffee powder, the extraction hopper is automatically controlled to move to the extraction position, and the powder outlet channel of the grinding assembly is automatically closed; S4, the tamper is started to compact the coffee powder in the extraction hopper, and the tamper and the extraction hopper form a sealed cavity, and hot water is injected into the sealed cavity through a first fluid passage to complete the extraction process; wherein, when the extraction hopper is in the powder receiving position, the extraction hopper is aligned with the powder outlet channel, and when the extraction hopper is in the extraction position, the extraction hopper is aligned with the tamper, and the powder receiving position and the extraction position are the limit positions of the movement of the extraction hopper.

[0030] The first aspect of this application discloses a coffee maker extraction method. Step S1 enables the extraction hopper to move automatically and automatically open the grinder's outlet channel, laying the foundation for automatic coffee powder collection. Step S2 activates the grinder to grind the coffee and outputs it through the outlet channel, achieving instant grinding and directional output, ensuring coffee powder freshness, avoiding flavor loss due to pre-grinding, and ensuring accurate powder delivery to reduce waste. Step S3 allows the coffee machine to automatically switch the extraction hopper between the receiving and extraction positions. During receiving, it aligns with the outlet channel for precise powder collection, eliminating the need for manual handling of the extraction container and avoiding the spillage problem associated with traditional manual collection. After collecting a preset amount, it automatically moves to the extraction position aligned with the tamper, eliminating the need for manual installation of the extraction hopper. This replaces the traditional step of manually transferring the extraction container, increasing automation, ensuring seamless connection between receiving, tamping, and extraction, and improving overall process efficiency. Step S4 automatically tamps the coffee grounds using the tamper, eliminating the need for manual tampering and avoiding the inconsistencies in flatness caused by manual tampering. This ensures a uniform coffee grounds density. Hot water is then injected through the first fluid path for extraction. The uniform coffee puck ensures thorough and even contact between the hot water and the coffee grounds, improving the stability of the extraction process. Simultaneously, the automated operation reduces the time spent on manual intervention, resolving the low extraction efficiency issues caused by manual tampering and container installation in traditional processes.

[0031] Furthermore, the steps for frothing milk in this application are as follows: steam is output through the second fluid passage to complete the milk frothing process, and the frothed milk is mixed with the extracted coffee liquid. Since the second fluid passage is used to output steam for frothing, it is independent of the first fluid passage and does not interfere with each other. Because the water temperature during extraction is approximately 120 degrees Celsius, and the steam temperature during milk frothing is approximately 150 degrees Celsius, using only one fluid passage for both extraction and frothing would require raising the water temperature after extraction to generate the steam needed for frothing. This application, by using two independent fluid passages for extraction and frothing respectively, reduces the water and steam switching time, thus reducing user waiting time.

[0032] like Figure 7 As shown, the specific steps of "outputting steam through the second fluid passage to complete the milk frothing process, and mixing the frothed milk with the extracted coffee liquid" are as follows: The coffee machine receives the third and fourth start commands, which control the second water pump and the second heater to start working and generate steam, respectively. Turn on the steam valve to allow steam to be output through the steam pipe and start frothing the milk; After the milk frothing is complete, the steam valve is closed to stop the steam output. The coffee machine receives the third and fourth stop commands, which control the second water pump and the second heater to stop working respectively. The second water pump, the second heater, the steam valve, and the steam pipe are sequentially connected to form the second fluid passage.

[0033] By controlling the activation of the second water pump and the second heater to generate steam for frothing milk, a stable steam source is provided for the milk frothing process. This design is independent of the water circuit used by the first water pump and the first heater to generate hot water for extraction, which effectively reduces the switching time caused by the difference between water and steam, reduces user waiting time, and improves the user experience.

[0034] like Figure 3 , Figure 9 and Figure 13-14 As shown, in addition to the features of the above embodiments, this embodiment further defines the following specific steps in step S1: the extraction hopper moves along a track inside the coffee machine, moves to the powder receiving position, and automatically opens the powder dispensing channel of the grinding assembly: S11, check and ensure that the extraction hopper is installed in place in the coffee machine; S12, the coffee machine receives a first drive command and automatically controls the extraction hopper to move on the track; S13, when the extraction hopper moves to the designated position, the powder dispensing channel is opened; wherein, the designated position is located between the powder receiving position and the extraction position; S14, after the extraction hopper moves to the powder receiving position, it stops moving, at which point the powder dispensing channel is fully opened, and the extraction hopper receives the coffee powder output from the powder dispensing channel.

[0035] By checking and ensuring the extraction hopper is properly installed on the coffee machine, a stable foundation is provided for subsequent coffee grounds dispensing, movement, and extraction operations. This prevents displacement, spillage, or extraction abnormalities caused by unstable hopper installation, ensuring the reliability of the entire process. Upon receiving the first drive command, the coffee machine automatically controls the extraction hopper to move towards the dispensing position, eliminating the need for manual adjustment and increasing automation to minimize human intervention and ensure accurate dispensing. When the extraction hopper reaches the designated position between the dispensing and extraction positions, the dispensing channel opens, allowing the hopper to begin collecting coffee grounds immediately, improving dispensing efficiency and thus extraction efficiency. Once the extraction hopper reaches the dispensing position, it stops moving, and the dispensing channel fully opens, ensuring precise alignment between the extraction hopper and the dispensing channel to receive coffee grounds. This guarantees stability in the dispensing process while achieving efficient coffee grounds output through the fully open dispensing channel.

[0036] like Figure 13-14 and Figure 16-17As shown, in addition to the features of the above embodiments, this embodiment further specifies that during the process of the extraction hopper moving from the designated position to the receiving position, the degree of opening of the dispensing channel is inversely proportional to the distance between the extraction hopper and the receiving position. Specifically, a baffle structure 6 is provided at the dispensing channel. When the extraction hopper moves to the designated position, the drive component that drives the extraction hopper to move will abut against the baffle structure 6 and drive the baffle structure 6 to gradually rotate and open the dispensing channel. Moreover, the closer the extraction hopper is to the receiving position, the greater the rotation amplitude of the baffle structure 6 driven by the drive component, until the dispensing channel at the receiving position is fully open. This design allows the extraction hopper to start collecting coffee powder before it is fully aligned, improving the coffee powder collection efficiency.

[0037] like Figure 13-15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that during the process of the extraction hopper moving from the designated position to the receiving position, the alignment degree between the extraction hopper and the dispensing channel is inversely proportional to the distance between the extraction hopper and the receiving position. Specifically, the portion of the dispensing channel aligned with the extraction hopper begins to dispense coffee powder for easy collection by the extraction hopper; the closer to the receiving position, the more coffee powder the extraction hopper can collect per unit time. This design allows the dispensing channel to gradually open, improving coffee powder collection efficiency.

[0038] like Figure 4 and Figure 13-14 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: in step S3, the extraction hopper receives coffee powder from the powder outlet channel, and after receiving a preset amount of coffee powder, the extraction hopper is automatically controlled to move to the extraction position, and the powder outlet channel of the grinding assembly is automatically closed. The specific steps are as follows: S31, after receiving the powder, the coffee machine receives the second drive command, automatically controls the extraction hopper to move on the track, and simultaneously controls the powder outlet channel to begin closing; S32, when the extraction hopper moves to the designated position, the powder outlet channel is completely closed; S33, the extraction hopper continues to move to the extraction position and then stops moving, preparing to enter the pressing extraction process.

[0039] After coffee grounds are dispensed, the extraction hopper automatically moves towards the tamper, simultaneously closing the dispensing channel. This linkage between the hopper's movement and the channel's gradual closure ensures coffee grounds are collected regardless of whether the hopper moves towards or away from the dispensing position, saving time and preventing spillage. The dispensing channel closes completely after the hopper reaches its designated position, preventing coffee residue and spillage that could occur if the hopper leaves the dispensing position before the channel closes, thus reducing waste. The hopper then stops at the extraction position, preparing for the tamping process. The entire process requires no manual intervention, ensuring a smooth transition from dispensing to tamping and improving workflow continuity and automation.

[0040] like Figure 5 and Figure 11-12 As shown, in addition to the features of the above embodiments, this embodiment further defines the following specific steps in step S4: activating the tamper to compact the coffee powder in the extraction hopper and forming a sealed cavity with the tamper and the extraction hopper: S41. Activate the tamper and drive it to move toward the extraction hopper; S42. The tamper enters the extraction hopper and compacts the coffee powder by controlling its axial movement, thereby forming a uniform and dense coffee cake; S43. After compaction, control the tamper to stop moving. At this time, the tamper and the extraction hopper form a sealed cavity, ready for hot water injection into the sealed cavity.

[0041] The tamper is activated and driven to move towards the extraction hopper, preparing for subsequent tamping. Specifically, the structure that moves the tamper can be a motor and a screw. The screw's outer thread engages with the tamper, and the screw rotates under the control of the motor, causing the tamper, which is threadedly connected to the screw, to move. After the tamper enters the extraction hopper, it forms a sealed cavity with the extraction hopper; that is, the interior of the extraction hopper contains this sealed cavity. The axial movement compacts the coffee grounds, providing a good foundation for stable extraction. After compaction, the tamper stops moving, and the tamper rests against the coffee puck, ensuring the puck's shape is stable and preventing excessive pressure during subsequent extraction, which could lead to extraction failure.

[0042] like Figure 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that the specific steps of injecting hot water into the extraction hopper through the first fluid passage to complete the extraction process in step S4 are as follows: S44, the coffee machine receives a first start command and a second start command, and controls the first water pump and the first heater to turn on respectively to form hot water; S45, the hot water is injected into the extraction component through the tamper to start extraction; S46, after extraction is completed, the coffee machine receives a first stop command and a second stop command, and controls the first water pump and the first heater to stop working respectively; wherein, the first water pump, the first heater, the tamper and the extraction hopper are sequentially connected to form the first fluid passage.

[0043] By independently controlling the activation of the first water pump and the first heater to generate hot water, the coordinated operation of the first water pump and the first heater ensures that hot water of the correct temperature is precisely generated, providing a stable source of hot water for subsequent extraction. The hot water is injected into the extraction hopper via the tamper to begin extraction. A first fluid passage, connecting the first water pump, the first heater, the tamper, and the extraction hopper in sequence, ensures that the hot water is precisely delivered to the extraction hopper along a fixed path, guaranteeing full contact between the hot water and the coffee grounds and ensuring the orderly progress of the extraction process. After extraction, the first water pump and the first heater are stopped to prevent waste or negative impacts on extraction results caused by continuous hot water generation and delivery, ensuring the precise termination of the extraction process and preparing for subsequent steps.

[0044] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further defines the following specific steps after step S46: S47, control the movement of the tamper to squeeze the residue left after extraction and squeeze out the residual coffee liquid therein; S48, after the squeezing is completed, control the tamper to move in the opposite direction so that it exits from the extraction hopper.

[0045] By controlling the movement of the tamper to squeeze out the coffee grounds remaining after extraction, residual coffee liquid can be squeezed out, reducing coffee waste and improving the utilization rate of coffee raw materials. This also prevents residual coffee liquid from remaining in the grounds and affecting subsequent processing. After squeezing, the tamper is moved in the opposite direction and withdrawn from the extraction hopper, allowing the extraction hopper to be smoothly removed and making room for subsequent grounds cleaning, ensuring a smooth cleaning process.

[0046] like Figure 2As shown, in addition to the features of the above embodiments, this embodiment further specifies the following steps after step S4: S5, remove the extraction hopper, remove the coffee grounds inside, and then reinstall the extraction hopper in the coffee machine for the next extraction. By removing the extraction hopper and removing the internal coffee grounds, it is possible to avoid the accumulation of coffee grounds, prevent the residual coffee grounds from deteriorating and affecting the flavor of the next extraction, and also prevent coffee grounds from clogging the extraction hopper. Reinstalling the extraction hopper in place for the next use ensures that the hopper is in a ready-to-use state, preparing for the start of the next extraction process and ensuring the smooth operation of subsequent operations.

[0047] Example 2, as Figure 8-17 As shown, this embodiment discloses a coffee machine extraction device, including: a support assembly 1; a grinding assembly 2, which is disposed on the support assembly 1 and has a powder outlet channel 201; a tamper 3, which is disposed on the support assembly 1 and is adjacent to the grinding assembly 2; a drive assembly 4, which is disposed on the support assembly 1; and an extraction hopper 5, which is disposed on the drive assembly 4 and can move relative to the support assembly 1 under the control of the drive assembly 4.

[0048] The second aspect of this application discloses a coffee machine extraction device. The support component 1 may include a coffee machine housing 11 and an internal support structure 12. The support component 1 provides a mounting base for the grinding component 2, tamper 3, drive component 4, and extraction hopper 5, ensuring orderly assembly of the components, guaranteeing the stability of the overall structure, and providing support for the coordinated operation of the components. The drive component 4 controls the movement of the extraction hopper 5 towards the powder outlet channel 201 or the tamper 3, enabling automatic switching between the powder receiving position and the extraction position without manual movement, thus improving the automation level of the operation and ensuring seamless connection between each process step.

[0049] like Figure 14 and Figure 15 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the support component 1 includes a track 121, the extraction powder hopper 5 is movably coupled with the track 121, and the track 121 is used to guide the extraction powder hopper 5 to a position below the powder press 3 and the powder outlet channel 201.

[0050] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A coffee extraction method using a coffee machine, characterized in that, The coffee machine extraction method includes: S1. The extraction hopper moves along the track inside the coffee machine, moves to the powder receiving position, and automatically opens the powder dispensing channel of the grinding component; S2. Start the coffee grinding component to grind the coffee beans into coffee powder and output it through the powder outlet channel; S3. The extraction hopper receives coffee powder from the dispensing channel. After receiving the preset amount of coffee powder, the extraction hopper is automatically moved to the extraction position, and the dispensing channel of the grinding component is automatically closed. S4. Start the tamper to compact the coffee powder in the extraction hopper and form a sealed cavity by closing the tamper and the extraction hopper. Inject hot water into the sealed cavity through the first fluid passage to complete the extraction process. Wherein, when the extraction powder hopper is located at the powder receiving position, the extraction powder hopper is aligned with the powder discharging channel; when the extraction powder hopper is located at the extraction position, the extraction powder hopper is aligned with the powder presser; the powder receiving position and the extraction position are the limit positions for the movement of the extraction powder hopper.

2. The coffee machine extraction method according to claim 1, characterized in that, The specific steps of step S1, in which the extraction hopper moves along a track inside the coffee machine, moves to the powder receiving position, and automatically opens the powder dispensing channel of the grinding assembly, are as follows: S11. Check and ensure that the extraction powder hopper is properly installed in the coffee machine; S12. The coffee machine receives the first drive command and automatically controls the extraction powder hopper to move on the track. S13. When the extraction powder hopper moves to the designated position, the powder outlet channel is opened; wherein, the designated position is located between the powder receiving position and the extraction position; S14. After the extraction hopper moves to the receiving position, it stops moving. At this time, the dispensing channel is fully open, and the extraction hopper receives the coffee powder output from the dispensing channel.

3. The coffee extraction method for a coffee machine according to claim 2, characterized in that, During the process of the extraction powder hopper moving from the designated position to the powder receiving position, the degree of opening of the powder outlet channel is inversely proportional to the distance between the extraction powder hopper and the powder receiving position; And / or, during the process of the extraction powder hopper moving from the designated position to the powder receiving position, the degree of alignment between the extraction powder hopper and the powder outlet channel is inversely proportional to the distance between the extraction powder hopper and the powder receiving position.

4. The coffee extraction method for a coffee machine according to claim 1, characterized in that, In step S3, the extraction hopper receives coffee grounds from the dispensing channel. After receiving a preset amount of coffee grounds, the extraction hopper is automatically moved to the extraction position, and the dispensing channel of the grinding assembly automatically closes. The specific steps are as follows: S31. After the coffee powder is dispensed, the coffee machine receives the second drive command, automatically controls the extraction powder hopper to move on the track, and simultaneously controls the powder dispensing channel to begin closing. S32. When the extraction powder hopper moves to the designated position, the powder outlet channel is completely closed; S33. The extraction powder hopper continues to move to the extraction position and then stops moving, ready to enter the pressing and extraction process.

5. The coffee extraction method for a coffee machine according to claim 1, characterized in that, The specific steps in step S4, which involve activating the tamper to compact the coffee powder in the extraction hopper and forming a sealed cavity with the tamper and the extraction hopper, are as follows: S41. Start the powder press and drive it to move toward the extraction powder hopper; S42. The tamper enters the extraction hopper and the coffee powder is compacted by controlling the axial movement of the tamper to form a uniform and dense coffee puck. S43. After compaction is completed, control the powder press to stop moving. At this time, the powder press and the extraction powder hopper form a sealed cavity, and hot water is prepared to be injected into the sealed cavity.

6. The coffee extraction method for a coffee machine according to claim 5, characterized in that, In step S4, hot water is injected into the extraction powder hopper through the first fluid passage to complete the extraction process. The specific steps are as follows: S44: The coffee machine receives the first start command and the second start command, and controls the first water pump and the first heater to turn on respectively to generate hot water; S45. Hot water is injected into the extraction assembly through the powder press to begin extraction; S46. After extraction is complete, the coffee machine receives a first stop command and a second stop command, which respectively control the first water pump and the first heater to stop working. The first water pump, the first heater, the powder press, and the extraction powder hopper are sequentially connected to form the first fluid passage.

7. The coffee extraction method for a coffee machine according to claim 6, characterized in that, The specific steps following step S46 are as follows: S47. Control the movement of the tamper to squeeze out the remaining coffee residue after extraction and squeeze out the remaining coffee liquid. S48. After extrusion is completed, control the powder press to move in the reverse direction so that it exits from the extraction powder hopper.

8. The coffee extraction method for a coffee machine according to claim 1, characterized in that, The specific steps following step S4 are as follows: S5. Remove the extraction hopper, remove the coffee grounds from the hopper, and then reinstall the extraction hopper in the coffee machine for the next extraction.

9. A coffee machine extraction device, characterized in that, include: Support component (1); A coffee grinding assembly (2) is disposed on the support assembly (1) and the coffee grinding assembly (2) is provided with a powder outlet channel (201). A tamper (3) is mounted on the support assembly (1) and is disposed adjacent to the grinding assembly (2); A drive component (4) is disposed on the support component (1); An extraction powder hopper (5) is disposed on a drive assembly (4) and is capable of moving relative to the support assembly (1) under the control of the drive assembly (4).

10. The coffee machine extraction device according to claim 9, characterized in that, The support component (1) includes a track (121), the extraction powder hopper (5) is movably engaged with the track (121), and the track (121) is used to guide the extraction powder hopper (5) to a position below the powder press (3) and the powder outlet channel (201).

Images