Coffee machine weighing apparatus, fully automatic coffee machine, and control method therefor

By setting up a weighing device under the water outlet pipe of the coffee machine, measuring the weight of coffee powder and water, and calculating the water ratio, the problem that existing coffee machines cannot accurately adjust the ratio of coffee powder to water is solved, and high-quality coffee brewing and preventing spills are achieved.

WO2025180107A1PCT designated stage Publication Date: 2025-09-04SHANGHAI TBDX TRADING CO LTD
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Patent Information

Application Number
PCT/CN2025/072163
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-28
Filing Date
2025-01-14
Publication Date
2025-09-04

AI Technical Summary

Technical Problem

Existing coffee machines cannot accurately adjust the ratio of coffee powder to water, resulting in the inability to ensure the quality of coffee brewing.

Method used

A weighing device is set up under the water outlet of the coffee machine, including a base, a weighing platform and a weighing assembly. The weight of coffee powder and water is measured by weighing sensors and weighing PCBA, the water ratio is calculated to control the ratio of coffee powder and water, and the weight of coffee liquid is recorded in real time to avoid overflow.

Benefits of technology

Accurately control the ratio of coffee powder and water, ensure the quality of coffee brewing, and prevent the coffee liquid from overflowing, protecting the weighing device.

✦ Generated by Eureka AI based on patent content.

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Abstract

A coffee machine weighing apparatus (60), a fully automatic coffee machine, and a control method, related to the technical field of coffee machines, and solving the technical problem in the prior art that coffee brewing quality cannot be ensured, due to the fact that a coffee machine cannot quantitatively adjust the ratio of ground coffee to water. The coffee machine weighing apparatus (60) is disposed below an outlet pipe of the coffee machine, and comprises a base (61), a weighing platform (63) and a weighing assembly (64). The weighing assembly (64) is disposed between the base (61) and the weighing platform (63), and is used for measuring the weight of the weighing platform (63) and a load. Provided are a coffee machine weighing apparatus (60), a fully automatic coffee machine, and a control method, which are capable of accurately controlling the ratio of ground coffee and water.
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Description

A coffee machine weighing device, a fully automatic coffee machine and a control method thereof Technical Field

[0001] The present invention relates to the technical field of coffee machines, and in particular to a coffee machine weighing device, a fully automatic coffee machine and a control method thereof. Background Art

[0002] A coffee machine is a general term for a coffee brewing machine. With the continuous improvement of people's living standards, people have an increasingly higher pursuit for homemade coffee and coffee taste.

[0003] Existing coffee machines can only rely on brewing experience or quantitative water discharge when brewing coffee. However, whether brewing coffee based on experience or brewing with quantitative water discharge by the coffee machine, the ratio of coffee powder to water cannot be controlled, making it difficult to brew high-quality coffee.

[0004] The applicant has discovered that the prior art has at least the following technical problems: the coffee machine cannot quantitatively adjust the ratio of coffee powder to water, resulting in an inability to ensure the quality of coffee brewing. Summary of the Invention

[0005] The purpose of the present invention is to provide a coffee machine weighing device, a fully automatic coffee machine and a control method thereof, so as to solve the technical problem that the coffee machine in the prior art cannot quantitatively adjust the ratio of coffee powder to water, resulting in the inability to ensure the quality of coffee brewing. 。 The various technical effects that can be produced by the preferred technical solutions among the various technical solutions provided by the present invention are described in detail below.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The coffee machine weighing device provided by the present invention is placed under the water outlet pipe of the coffee machine, and includes a base, a weighing platform and a weighing body component. The weighing body component is arranged between the base and the weighing platform to measure the weight of the weighing platform and its load.

[0008] As a further improvement of the present invention, the weighing body assembly includes a weighing sensor and a weighing PCBA, the weighing sensor is arranged on the base, the weighing platform is arranged on the weighing sensor, the weighing PCBA is placed on one side of the weighing sensor, and the weighing PCBA is electrically connected to the controller of the coffee machine.

[0009] As a further improvement of the present invention, a positioning groove is provided on the base, and a positioning protrusion is provided on the weighing sensor, and the positioning protrusion is adapted to the positioning groove.

[0010] As a further improvement of the present invention, a water tank assembly is detachably provided on the weighing platform.

[0011] As a further improvement of the present invention, the water tank assembly includes a water tank liner, a water tank and a water tank cover, the water tank cover is arranged on the water tank, the water tank is arranged in the water tank liner, and the water tank liner is arranged on the weighing platform.

[0012] As a further improvement of the present invention, the weighing platform and the water tank liner are magnetically connected via a first magnetic member.

[0013] As a further improvement of the present invention, the water tank and the water tank liner are magnetically connected via a second magnetic member.

[0014] A coffee machine comprises the coffee machine weighing device as described above.

[0015] A fully automatic coffee machine comprises a coffee machine body, a grinding device, a reciprocating mechanism, and the coffee machine weighing device as described above. The reciprocating mechanism drives coffee capsules to reciprocate between a powder outlet of the grinding device and below a water outlet pipe of the coffee machine body. The coffee machine weighing device is arranged below the reciprocating mechanism.

[0016] A fully automatic coffee machine control method, applied to the fully automatic coffee machine as described above, comprising:

[0017] The coffee cup is placed under the water outlet pipe of the coffee machine body, and the controller of the coffee machine body receives a brewing instruction, at which time the controller records the weight of the coffee machine weighing device as zero;

[0018] The reciprocating mechanism drives the coffee capsule to move below the powder outlet of the grinding device, the grinding device puts a quantitative amount of coffee beans and completes the grinding, and the coffee powder enters the coffee capsule through the powder outlet. The reciprocating mechanism drives the coffee capsule to move below the water outlet pipe of the coffee machine body;

[0019] The coffee machine body pours water onto the coffee capsule to complete the extraction and brewing. The coffee liquid flows into the coffee cup through the filter hole at the bottom of the coffee capsule. The weighing device of the coffee machine records the weight G1 in real time.

[0020] The controller can calculate the amount of water G2 in the coffee capsule based on the water output G0 of the coffee machine body and the weight G1 of the coffee machine weighing device to determine whether the water amount in the coffee capsule reaches a set value, thereby controlling and adjusting the water output of the coffee machine body.

[0021] The beneficial effects of the present invention are as follows: the coffee machine weighing device, the fully automatic coffee machine and the control method thereof provided by the present invention include a base, a weighing platform and a weighing body assembly, the weighing body assembly can measure the weight of the weighing platform and its load, when the coffee machine weighing device is applied to the coffee machine, the weight of the coffee powder can be obtained according to the weight difference, and the water ratio can be obtained according to the weight of the coffee powder, thereby accurately controlling the ratio of coffee powder to water to brew high-quality coffee; when the coffee machine weighing device is applied to the fully automatic coffee machine, the problem of coffee liquid overflow can also be solved according to the weighing value, thereby effectively ensuring the brewing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] FIG1 is a schematic structural diagram of a fully automatic coffee machine according to the present invention;

[0024] Figure 2 is a schematic diagram of the structure of the coffee machine weighing device of the present invention. In the figure, 100, coffee machine body; 200, grinding mechanism; 300, reciprocating mechanism; 400, coffee capsule; 60, coffee machine weighing device; 61, base; 62, water tank assembly; 63, weighing platform; 64, scale assembly; 65, first magnetic element; 66, second magnetic element; 611, positioning groove; 621, water tank liner; 622, water tank; 623, water tank cover; 641, load cell; 642, weighing PCBA; 643, positioning protrusion. DETAILED DESCRIPTION

[0025] The following can refer to the accompanying drawings Figures 1 to 2 and the text content to understand the content of the present invention and the differences between the present invention and the prior art. The following is a further detailed description of the technical solutions (including preferred technical solutions) of the present invention by means of the accompanying drawings and by listing some optional embodiments of the present invention. It should be noted that any technical feature and any technical solution in this embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the present invention in this document, nor is it convenient to emphasize that the implementation of each technical feature is one of a variety of optional implementations. Therefore, those skilled in the art should know that any technical means provided by the present invention can be replaced or any two or more technical means or technical features provided by the present invention can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the present invention. The scope of protection of the present invention should include any alternative technical solutions that can be thought of by those skilled in the art without creative work and new technical solutions obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0028] The present invention provides a coffee machine weighing device capable of accurately controlling the ratio of coffee powder and water, a fully automatic coffee machine and a control method thereof.

[0029] The technical solution provided by the present invention will be described in more detail below with reference to FIG1 and FIG2 .

[0030] The present invention provides a coffee machine weighing device, which is placed below the water outlet pipe of the coffee machine and includes a base, a weighing platform and a weighing body component. The weighing body component is arranged between the base and the weighing platform to measure the weight of the weighing platform and its load.

[0031] The coffee machine weighing device provided by the present invention is placed under the water outlet pipe of the coffee machine, and includes a base, a weighing platform and a weighing body assembly. The weighing body assembly can measure the weight of the weighing platform and its load. When the coffee machine weighing device is applied to the coffee machine, the weight of the coffee powder can be obtained according to the weight difference, and the water ratio can be obtained according to the weight of the coffee powder, so as to accurately control the ratio of coffee powder to water to brew high-quality coffee; when the coffee machine weighing device is applied to a fully automatic coffee brewing machine, the problem of coffee liquid overflow can also be solved according to the weighing value, thereby effectively ensuring the brewing effect.

[0032] It is understandable that when applied to a general coffee machine, since the coffee cup and the coffee machine are set as a set, the weight of the coffee cup is a fixed weight. When the coffee cup with coffee powder is placed on the weighing platform, the coffee machine can calculate the weight of the coffee powder, and thus obtain the weight or volume of water based on the optimal ratio of coffee powder to water, so as to achieve the purpose of brewing high-quality coffee.

[0033] When applied to a fully automatic coffee machine, especially the fully automatic coffee machine provided by the present invention, the weighing device can record the weight of the coffee liquid in the coffee cup in real time, thereby calculating the amount of coffee liquid in the coffee capsule to determine whether the coffee liquid content in the coffee capsule exceeds the capacity of the coffee capsule. This prevents coffee liquid from overflowing from the periphery of the coffee capsule during coffee extraction, resulting in coffee liquid loss, and prevents coffee liquid from overflowing onto the weighing device of the coffee machine, thereby effectively protecting the weighing device of the coffee machine.

[0034] In addition, the coffee machine weighing device provided by the present invention can also be used for weighing in daily kitchens, offices, etc.

[0035] As a further improvement of the present invention, the weighing body assembly includes a weighing sensor and a weighing PCBA, the weighing sensor is arranged on the base, the weighing platform is arranged on the weighing sensor, the weighing PCBA is placed on one side of the weighing sensor, and the weighing PCBA is electrically connected to the controller of the coffee machine.

[0036] In this further improvement, the weighing assembly includes a weighing sensor and a weighing PCBA, which is connected to the weighing sensor. The weighing sensor obtains the weight of the weighing platform and its load, and sends the weight to the controller and display of the coffee machine. The controller and display can calculate and display the weight of the weighing platform and its load, or the weight after deducting the weighing platform and the coffee cup, and determine the amount of water based on the weight to complete coffee brewing, thereby ensuring that the ratio of coffee powder and water is optimal and the quality of coffee brewing is ensured.

[0037] As a further improvement of the present invention, the base is provided with a positioning groove, and the weighing sensor is provided with a positioning protrusion, which is adapted to fit within the positioning groove. The positioning groove and the positioning protrusion can be used to locate the position of the weighing sensor, ensuring accurate positioning of the weighing sensor and accurate measurement results.

[0038] As a further improvement of the present invention, a water tank assembly is detachably provided on the weighing platform.

[0039] In this further improvement, a water tank assembly is provided on the weighing platform, which can receive water flowing from the water outlet to prevent the water from flowing directly onto the weighing platform, thereby preventing internal water ingress and causing damage to the weighing PCBA.

[0040] It is understood that when the coffee machine weighing device is equipped with a water tank assembly, the coffee machine controller can calculate the weight difference between the coffee cup before and after placement to obtain the weight of the coffee powder, thereby calculating the amount of water to ensure that high-quality coffee is brewed.

[0041] As a further improvement of the present invention, the water tank assembly includes a water tank liner, a water tank and a water tank cover, the water tank cover is arranged on the water tank, the water tank is arranged in the water tank liner, and the water tank liner is arranged on the weighing platform.

[0042] In this further improvement, a sink liner is provided, which is arranged on the weighing platform to protect the electrical components under the weighing platform. The sink is arranged in the sink liner to collect water that flows out accidentally or due to misoperation. The sink cover is provided on the sink. The sink cover is a hollow structure to facilitate water to enter the sink through the sink cover. The sink cover is used to hold coffee cups.

[0043] As a further improvement of the present invention, the weighing platform and the water tank liner are magnetically connected via a first magnetic member.

[0044] As a further improvement of the present invention, the water tank and the water tank liner are magnetically connected via a second magnetic member.

[0045] In the above further improvement, the weighing platform and the water tank liner, as well as the water tank and the water tank liner are detachably connected by the first magnetic member and the second magnetic member, so as to facilitate their rapid separation.

[0046] A coffee machine comprises the coffee machine weighing device as described above.

[0047] A fully automatic coffee machine comprises a coffee machine body, a grinding device, a reciprocating mechanism, and the coffee machine weighing device as described above. The reciprocating mechanism drives coffee capsules to reciprocate between a powder outlet of the grinding device and below a water outlet pipe of the coffee machine body. The coffee machine weighing device is arranged below the reciprocating mechanism.

[0048] The fully automatic coffee machine provided by the present invention provides a reciprocating mechanism below the water outlet pipe of the coffee machine body and the powder outlet of the grinding device. The reciprocating mechanism can drive the coffee capsule to move back and forth between the water outlet pipe and the powder outlet, thereby realizing powder collection and coffee extraction, ensuring fully automatic completion of coffee extraction and brewing.

[0049] Specifically, the reciprocating mechanism can adopt any reciprocating drive device such as a screw assembly, a guide rail slider combination or a screw assembly in the prior art to achieve the reciprocating movement of the coffee capsule.

[0050] A fully automatic coffee machine control method, applied to the fully automatic coffee machine as described above, comprising:

[0051] The coffee cup is placed under the water outlet pipe of the coffee machine body, and the controller of the coffee machine body receives a brewing instruction, at which time the controller records the weight of the coffee machine weighing device as zero;

[0052] The reciprocating mechanism drives the coffee capsule to move below the powder outlet of the grinding device, the grinding device puts a quantitative amount of coffee beans and completes the grinding, and the coffee powder enters the coffee capsule through the powder outlet. The reciprocating mechanism drives the coffee capsule to move below the water outlet pipe of the coffee machine body;

[0053] The coffee machine body pours water onto the coffee capsule to complete the extraction and brewing. The coffee liquid flows into the coffee cup through the filter hole at the bottom of the coffee capsule. The weighing device of the coffee machine records the weight G1 in real time.

[0054] The controller can calculate the amount of water G2 in the coffee capsule based on the water output G0 of the coffee machine body and the weight G1 of the coffee machine weighing device to determine whether the water amount in the coffee capsule reaches a set value, thereby controlling and adjusting the water output of the coffee machine body.

[0055] The fully automatic coffee machine control method provided by the present invention provides a coffee machine weighing device, which can record the weight of the coffee liquid in the coffee cup in real time, thereby calculating the amount of coffee liquid in the coffee capsule to determine whether the coffee liquid content in the coffee capsule exceeds the capacity of the coffee capsule. This prevents coffee liquid from overflowing from the periphery of the coffee capsule during coffee extraction, resulting in coffee liquid loss, and prevents coffee liquid from overflowing onto the coffee machine weighing device, thereby effectively protecting the coffee machine weighing device.

[0056] Embodiment 1:

[0057] The coffee machine weighing device 60 provided by the present invention is placed under the water outlet pipe of the coffee machine, and includes a base 61, a weighing platform 63 and a weighing body assembly 64. The weighing body assembly 64 is arranged between the base 61 and the weighing platform 63 to measure the weight of the weighing platform 63 and its load.

[0058] Specifically, the weighing body assembly 64 includes a weighing sensor 641 and a weighing PCBA 642. The weighing sensor 641 is arranged on the base 61, the weighing platform 63 is arranged on the weighing sensor 641, and the weighing PCBA 642 is placed on one side of the weighing sensor 641. The weighing PCBA 642 is electrically connected to the controller of the coffee machine.

[0059] It should be noted that the weighing PCBA642 is connected to the weighing sensor 641 to obtain the weight of the weighing platform 63 and its load, and send the weight to the controller and display of the coffee machine. The controller and display can calculate and display the weight of the weighing platform 63 and its load, determine the amount of water based on the weight, and thus complete the coffee brewing to ensure that the ratio of coffee powder and water is optimal and the quality of coffee brewing is ensured.

[0060] More specifically, a positioning groove 611 is provided on the base 61 , and a positioning protrusion 643 is provided on the weighing sensor 641 , and the positioning protrusion 643 is adapted to the positioning groove 611 .

[0061] It is understandable that in order to ensure that the weighing sensor 641 is stably fixed between the base 61 and the weighing platform 63 , a slot can be used to position the weighing sensor 641 , and the size of the slot is adapted to the weighing sensor 641 .

[0062] Furthermore, a water tank assembly 62 is detachably provided on the weighing platform 63. The water tank assembly 62 includes a water tank liner 621, a water tank 622, and a water tank cover 623. The water tank cover 623 is provided on the water tank 622, the water tank 622 is provided in the water tank liner 621, and the water tank liner 621 is provided on the weighing platform 63.

[0063] The weighing platform 63 is magnetically connected to the water tank liner 621 via a first magnetic component 65 , and the water tank 622 is magnetically connected to the water tank liner 621 via a second magnetic component 66 .

[0064] A coffee machine includes the coffee machine weighing device 60 as described above.

[0065] A fully automatic coffee machine includes a coffee machine body 100, a grinding device 200, a reciprocating mechanism 300, and the coffee machine weighing device 60 described above. The reciprocating mechanism 300 drives a coffee capsule 400 to reciprocate between the powder outlet of the grinding device 200 and below the water outlet pipe of the coffee machine body 100. The coffee machine weighing device 60 is arranged below the reciprocating mechanism 300.

[0066] It is understandable that the coffee machine body 100 is provided with a watering device, which can automatically dispense water for brewing coffee, and like existing coffee machines, can accurately control the watering flow rate, which can be achieved through technical means such as flow sensors. Since this part is existing technology, it will not be elaborated.

[0067] In addition, the grinding device 200 is used to grind coffee beans, grind the coffee beans into coffee powder, and discharge the coffee powder from the powder outlet. This part of the grinding device 200 is also existing technology and will not be described in detail here.

[0068] A fully automatic coffee machine control method, applied to the above-mentioned fully automatic coffee machine, comprising:

[0069] The coffee cup is placed under the water outlet pipe of the coffee machine body 100. The controller of the coffee machine body 100 receives a brewing instruction, and at this time, the controller records the weight of the coffee machine weighing device 60 as zero.

[0070] The reciprocating mechanism 300 drives the coffee capsule 400 to move below the powder outlet of the grinding device 200. The grinding device 200 puts a fixed amount of coffee beans and completes the grinding. The coffee powder enters the coffee capsule 400 through the powder outlet. The reciprocating mechanism 300 drives the coffee capsule 400 to move below the water outlet of the coffee machine body 100.

[0071] The coffee machine body 100 pours water onto the coffee capsule 400 to complete the extraction and brewing. The coffee liquid flows into the coffee cup through the filter holes at the bottom of the coffee capsule 400. The coffee machine weighing device 60 records the weight G1 in real time.

[0072] The controller can calculate the amount of water G2 in the coffee capsule 400 based on the water output G0 of the coffee machine body 100 and the weight G1 of the coffee machine weighing device 60 to determine whether the water amount in the coffee capsule 400 reaches a set value, thereby controlling and adjusting the water output of the coffee machine body 100.

[0073] The fully automatic coffee machine control method provided by the present invention provides a coffee machine weighing device 60. The weighing device can record the weight of the coffee liquid in the coffee cup in real time, thereby calculating the amount of coffee liquid in the coffee capsule 400. This can determine whether the coffee liquid content in the coffee capsule 400 exceeds the capacity of the coffee capsule 400, thereby preventing coffee liquid from overflowing from the periphery of the coffee capsule 400 during coffee extraction, resulting in coffee liquid loss, and preventing coffee liquid from overflowing onto the coffee machine weighing device 60.

[0074] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A coffee machine weighing device, characterized in that: It is placed below the water outlet pipe of the coffee machine and includes a base, a weighing platform and a weighing body component. The weighing body component is arranged between the base and the weighing platform to measure the weight of the weighing platform and its load.

2. The coffee machine weighing device according to claim 1, characterized in that: The weighing assembly includes a weighing sensor and a weighing PCBA. The weighing sensor is arranged on the base, the weighing platform is arranged on the weighing sensor, the weighing PCBA is placed on one side of the weighing sensor, and the weighing PCBA is electrically connected to the controller of the coffee machine.

3. The coffee machine weighing device according to claim 2, characterized in that: A positioning groove is provided on the base, and a positioning protrusion is provided on the weighing sensor, and the positioning protrusion is adapted to the positioning groove.

4. The coffee machine weighing device according to any one of claims 1 to 3, characterized in that: A water tank assembly is detachably provided on the weighing platform.

5. The coffee machine weighing device according to claim 4, characterized in that: The water tank assembly includes a water tank lining, a water tank and a water tank cover. The water tank cover is arranged on the water tank, the water tank is arranged in the water tank lining, and the water tank lining is arranged on the weighing platform.

6. The coffee machine weighing device according to claim 5, characterized in that: The weighing platform is magnetically connected to the water tank liner via a first magnetic member.

7. The coffee machine weighing device according to claim 5, characterized in that: The water tank and the water tank liner are magnetically connected via a second magnetic member.

8. A fully automatic coffee machine, characterized in that: The invention comprises a coffee machine body, a grinding device, a reciprocating mechanism, and a coffee machine weighing device according to any one of claims 1 to 7, wherein the reciprocating mechanism drives the coffee capsule to reciprocate between the powder outlet of the grinding device and below the water outlet pipe of the coffee machine body, and the coffee machine weighing device is arranged below the reciprocating mechanism.

9. A fully automatic coffee machine control method, characterized in that: The fully automatic coffee machine according to claim 8 comprises: The coffee cup is placed under the water outlet pipe of the coffee machine body, and the controller of the coffee machine body receives a brewing instruction, at which time the controller records the weight of the coffee machine weighing device as zero; The reciprocating mechanism drives the coffee capsule to move below the powder outlet of the grinding device, the grinding device puts a quantitative amount of coffee beans and completes the grinding, and the coffee powder enters the coffee capsule through the powder outlet. The reciprocating mechanism drives the coffee capsule to move below the water outlet pipe of the coffee machine body; The coffee machine body pours water onto the coffee capsule to complete the extraction and brewing. The coffee liquid flows into the coffee cup through the filter hole at the bottom of the coffee capsule. The weighing device of the coffee machine records the weight G1 in real time. The controller can calculate the amount of water G2 in the coffee capsule based on the water output G0 of the coffee machine body and the weight G1 of the coffee machine weighing device to determine whether the water amount in the coffee capsule reaches a set value, thereby controlling and adjusting the water output of the coffee machine body.

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