Method for making milk coffee beverage using capsule beverage machine

Abstract

The present invention provides a method for preparing a milk coffee beverage by using a capsule beverage machine. The capsule beverage machine comprises a machine base, a brewing cavity, a control panel, a brewing head, a water inlet needle, a water outlet needle, a liquid supply mechanism and a brewing cup for accommodating a milk coffee capsule. The milk coffee capsule comprises a capsule body and a diaphragm. The milk coffee capsule also comprises a partition through which liquid can flow. The partition is arranged in the capsule body and divides the inner cavity of the capsule body into a first cavity and a second cavity. Milk powder is arranged in the first cavity, and coffee powder is arranged in the second cavity. The method for preparing a milk coffee beverage by using a capsule beverage machine comprises an emulsification step, an extraction step and a mixing step, so that the milk powder is first emulsified and brewed in sequence, and then the coffee powder is extracted and filtered, and finally the milk liquid and the coffee liquid are mixed to form the milk coffee beverage. In this method, the milk liquid and the coffee liquid are fully mixed, and the milk liquid does not float on the surface of the coffee liquid, so that the taste of the milk coffee beverage is improved and the color and appearance of the milk coffee beverage are good.

Description

Technical Field

[0001] The invention relates to a method for making a drink, and in particular to a method for making a milk coffee drink by using a capsule drink machine. Background Art

[0002] At present, with the improvement of people's quality of life and life taste, natural, healthy and fast milk coffee drinks are becoming more and more popular.

[0003] However, the common preparation methods of milk coffee drinks include: all-in-one instant milk coffee, instant coffee and coffee companion milk coffee, extracting coffee and adding fresh milk to prepare milk coffee at home or in coffee shops, and adding fresh milk to the coffee liquid extracted by capsule coffee machines. In addition, the coffee powder in instant milk coffee drinks is mostly made by freeze-drying and spraying, and is heavily roasted and ultra-finely ground, and then compounded with non-dairy creamer, which lacks aroma; preparing milk coffee by adding coffee liquid to milk is complicated, requires many tools, and requires materials such as creamer and milk balls, which is relatively cumbersome.

[0004] Although there is a capsule for making milk coffee drinks on the market, this preparation method is to prepare milk coffee by making multiple capsules separately. Not only is the production process cumbersome, but the cost is high, the loss is large, and the packaging is increased, which is not conducive to environmental protection. At the same time, the milk coffee prepared by this method, because the coffee liquid and the milk liquid are prepared successively, the mixing uniformity in the receiving container is not high, which will affect the taste of the drink to a certain extent. Summary of the invention

[0005] The object of the present invention is to provide a method for preparing a milk coffee beverage which is simple in preparation, has a good taste and is environmentally friendly.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a method for making a milk coffee drink by using a capsule beverage machine, the capsule beverage machine comprising a machine base, a brewing cavity and a control panel arranged in the machine base, a brewing head, a water inlet needle arranged on the brewing head, a lead-out needle, a liquid supply mechanism for providing liquid to the brewing head, and a brewing cup for accommodating a milk coffee capsule, the milk coffee capsule comprising a capsule body and a diaphragm sealed with the capsule body, the capsule body comprising a bottom wall and a side wall, wherein the milk coffee capsule further comprises a partition through which liquid can flow, the partition is arranged in the capsule body and divides the inner cavity of the capsule body into a first cavity and a second cavity, the first cavity and the second cavity are both provided with beverage powder, the beverage powder in the first cavity is milk powder, and the beverage powder in the second cavity is coffee powder, the method for making a milk coffee drink by the capsule beverage machine comprises:

[0007] Emulsification step: the water inlet needle pierces the milk coffee capsule, and the lead-out needle extends into the first cavity. The control panel controls the liquid supply mechanism to inject V1 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S1 ml / s. The water enters the first cavity and contacts and dissolves the milk powder to form milk liquid.

[0008] Extraction step: the control panel controls the liquid supply mechanism to inject V2ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S2ml / s. The water enters the second cavity and fully soaks the coffee powder to form coffee liquid.

[0009] Mixing step: the control panel controls the liquid supply mechanism to inject V3 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S3 ml / s. The coffee liquid formed in the extraction step flows to the first cavity through the partition under the pressure of the continuously injected water and is fully mixed with the milk liquid to form a milk coffee drink;

[0010] Beverage discharge steps: draw out the prepared milk coffee beverage from the milk coffee capsule through the drawing out needle.

[0011] Furthermore, the first cavity and the second cavity are distributed up and down, and the separator includes a filter bracket and filter paper fixed by the filter bracket, the filter bracket is provided with a middle ring extending to the diaphragm, a water inlet channel is provided in the middle ring and a gap is provided between the upper end of the middle ring and the diaphragm, a diverter plate is provided in the middle ring, and a diverter hole connecting the first cavity and the second cavity is provided on the diverter plate.

[0012] Furthermore, the water inlet needle and the lead-out needle are located on the same side. During the emulsification step, the water inlet needle pierces the membrane of the milk coffee capsule to be inserted into the middle ring, and the speed at which water enters the first cavity from the gap is greater than the speed at which water enters the second cavity from the diversion hole, so that the injected water first fills the water inlet channel at the upper end of the middle ring, and then is injected into the first cavity from the gap between the upper end and the membrane, and forms a vortex in the first cavity. Driven by the vortex, the milk powder is fully mixed with the water and dissolved.

[0013] Furthermore, after the emulsification step is completed and milk has been formed in the first cavity, water continues to be injected into the first cavity. If the flow rate of the continuously injected water is lower than the flow rate of the water in the emulsification step, the injected water enters the second cavity through the diversion hole to fully wet the coffee powder in the second cavity and form coffee liquid. The coffee liquid passes through the filter paper under the pressure of the continuously injected water and mixes with the milk in the first cavity to finally form a milk coffee drink.

[0014] Furthermore, the partition includes a cylinder, which is arranged at the center of the capsule body, the inner wall of the cylinder, the bottom wall of the capsule body and the diaphragm together form a first cavity, the outer wall of the cylinder, the side wall of the capsule body, the bottom wall of the capsule body and the diaphragm together form a second cavity, the second cavity is arranged around the periphery of the first cavity, and a gap is provided between the upper end of the cylinder and the diaphragm; or, a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body; or, a gap is provided between the upper end of the cylinder and the diaphragm, and a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body.

[0015] Furthermore, a gap is provided between the upper end of the cylinder and the diaphragm, and the water inlet needle and the outlet needle are located on the same side. During the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. After the first cavity is filled with the milk liquid and the continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity.

[0016] Alternatively, a gap is provided between the lower end of the barrel and the bottom wall of the capsule body, and the water inlet needle and the outlet needle are located on the same side. During the emulsification step, the water inlet needle pierces the capsule membrane to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. After the first cavity is filled with the milk liquid and the continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the lower end of the barrel and the bottom wall of the capsule body, and infiltrate the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity.

[0017] Alternatively, a gap is provided between the upper end of the cylinder and the diaphragm, a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body, the water inlet needle and the lead-out needle are located on both sides, and during the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid, after the first cavity is filled with the milk liquid and the continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid, the coffee liquid flows into the first cavity from the gap between the lower end of the cylinder and the bottom of the capsule body and mixes with the milk to form a milk coffee drink, and the milk coffee drink is discharged through the lead-out needle inserted into the first cavity.

[0018] Furthermore, the central axes of the water inlet needle, the outlet needle and the milk coffee capsule are all arranged horizontally.

[0019] Furthermore, the 1ml / s≤S2<S3≤S1≤15ml / s, and the 5ml≤V2<V3<V1≤200ml.

[0020] Furthermore, the extraction step includes a segmented extraction process: the liquid supply mechanism injects a certain amount of water and then stops for a period of time, and then continues to inject water, and this cycle is repeated N times, N≥2, and the interval time between each extraction process in the segmented extraction process is T, 0.1s≤T≤5s.

[0021] Furthermore, the mixing step also includes a blowing process: the control panel controls the liquid supply mechanism to blow air, and the gas enters the second cavity through the water inlet needle and pushes the coffee liquid through the partition to mix with the milk liquid in the first cavity.

[0022] After adopting the above technical solution, the present invention has the following advantages:

[0023] 1. By setting a partition, the capsule body is divided into a first cavity and a second cavity, and the first cavity is filled with milk powder, and the second cavity is filled with coffee powder. In this way, when making milk coffee, only one operation is required, and there is no need to operate twice, which reduces the operation steps, simplifies user operation, improves humanization, and is simple to make; secondly, one capsule can make a milk coffee drink, and no packaging materials will be added, which is both environmentally friendly and reduces the production and processing costs, thereby reducing the user's consumption cost; using the structure of the above-mentioned milk coffee capsule, the method for making a milk coffee drink includes an emulsification step, an extraction step and a mixing step, so that the milk powder is first emulsified, dissolved and brewed in order, and then the coffee powder is extracted and filtered, and finally the milk liquid and the coffee liquid are mixed to form a milk coffee drink. Compared with the existing preparation method, the milk liquid and the coffee liquid are fully mixed in this method, and the milk liquid will not float on the surface of the coffee liquid, which not only improves the taste of the milk coffee drink, but also has good color and appearance, thereby improving the attractiveness of the milk coffee drink.

[0024] In addition, since the protein content of milk powder is high and it is not easy to dissolve, in order to increase the dissolution rate, in the emulsification step, the control board controls the liquid supply mechanism to inject V1ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S1ml / s, which not only ensures the brewing effect, but also ensures the taste and concentration of the brewed milk; secondly, in the extraction step, the control board controls the liquid supply mechanism to inject V2ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S2ml / s, which not only ensures the extraction efficiency, but also ensures the taste and concentration of the extracted coffee liquid; and, in the mixing step, the control board controls the liquid supply mechanism to inject V3ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S3ml / s, which not only ensures that the milk and coffee liquid are fully mixed, and the mixing is fast, thereby improving the brewing efficiency of the milk coffee drink.

[0025] 2. By distributing the first cavity and the second cavity up and down, the milk powder and the coffee powder are respectively arranged in independent cavities, which can not only prevent the two beverage powders from mixing together for a long time to affect the taste of the beverage, but also prolong the shelf life of the beverage powder, and make the prepared milk coffee beverage more delicious; at the same time, by providing a middle ring, a water inlet channel is provided in the middle ring, a gap is provided between the upper end of the middle ring and the diaphragm, a diverter plate is provided in the middle ring, and a diverter hole connecting the first cavity and the second cavity is provided on the diverter plate, the structure of the milk coffee capsule can make the milk powder and coffee powder filled before the milk coffee capsule is brewed. The milk and coffee powder are separated and isolated to prevent cross-flavoring, thus extending the shelf life of the milk coffee capsules. In the brewing process, this structure can ensure that the milk powder is first emulsified and dissolved, and then the coffee powder is extracted and filtered, and finally the milk and coffee liquid are mixed to form a milk coffee drink. In this way, there is no need to brew twice, and the milk and coffee liquid are directly and fully mixed during the brewing process, thus saving the preparation time of the milk coffee drink. At the same time, during the brewing process, water can flow according to a predetermined channel, so that the emulsification, extraction and mixing are more complete, so that the produced milk coffee drink is more delicious and beautiful in color, thereby increasing the user's appetite.

[0026] 3. By arranging the water inlet needle and the outlet needle on the same side, it is convenient for the water inlet needle and the outlet needle to puncture the milk coffee capsule and the discharge of the milk coffee drink, which improves the production efficiency of the milk coffee drink; and the speed of water flowing into the first cavity from the gap is set to be greater than the speed of water flowing into the second cavity from the diversion hole. In this way, during the emulsification step, the water flow first fills the water inlet channel at the upper end of the middle ring, and then injects into the first cavity from the gap between the upper end and the diaphragm, and forms a vortex in the first cavity. The milk powder is fully mixed with water and dissolved under the drive of the vortex, so that the milk powder can be better dissolved, which not only ensures the concentration of the milk after mixing, but also improves the dissolution rate of the milk powder, avoids the waste of milk powder, but also improves the mixing efficiency and shortens the preparation time of the drink.

[0027] 4. After the emulsification step is completed, milk liquid has formed in the first cavity, and the continuously injected water enters the second cavity through the diversion hole to fully infiltrate the coffee powder in the second cavity and form coffee liquid. The coffee liquid passes through the filter paper under the pressure of the continuously injected water and mixes with the milk liquid in the first cavity to finally form a milk coffee drink. In this way, the flow path of water in the capsule is orderly, and the flow path of water and milk powder or coffee powder after forming milk liquid or coffee liquid is also orderly. Therefore, water and milk liquid or coffee liquid circulate regularly in the capsule, effectively achieving full mixing or extraction of water with milk powder and coffee powder, and having a good dissolution or extraction effect.

[0028] 5. The separator includes a cylinder, which is arranged at the center of the capsule body to divide the inner cavity of the capsule body into two, and the second cavity is arranged around the outer periphery of the first cavity, and a gap is provided between the upper end of the cylinder and the diaphragm, or a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body, or gaps are provided between the upper end of the cylinder and the diaphragm and between the lower end of the cylinder and the bottom wall of the capsule body. This ensures that water can enter the first cavity and the second cavity, and that water flows regularly and circulates in the first cavity and the second cavity, which not only speeds up the preparation and extraction of milk powder and coffee powder, improves the efficiency of beverage preparation, but also ensures the preparation effect of the beverage.

[0029] 6. A gap is provided between the upper end of the cylinder and the diaphragm, and the water inlet needle and the outlet needle are located on the same side, so that during the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. After the first cavity is filled with milk liquid and continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid, and the coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity, so that the flow path of water in the capsule is orderly, and the flow path of water and milk powder or coffee powder after forming milk liquid or coffee liquid is also orderly, so that water and milk liquid or coffee liquid circulate regularly in the capsule, effectively realizing the full mixing or extraction of water and milk powder or coffee powder, and having a good dissolution or extraction effect.

[0030] 7. By arranging the central axis of the water inlet needle, the outlet needle and the milk coffee capsule horizontally, that is, the capsule is placed horizontally, when water is mixed and extracted with milk powder and coffee powder in the milk coffee capsule to form a milk coffee drink, since the milk coffee capsule is placed horizontally, the milk coffee drink flows to the side of the outlet needle under the action of its own gravity, which makes it convenient for the milk coffee drink to be discharged from the milk coffee capsule.

[0031] 8. By setting S1, S2, and S3 between 1ml / s and 15ml / s, specifically, 10ml / s≤S1≤15ml / s, 1ml / s≤S2≤10ml / s, 10ml / s≤S3≤15ml / s, V1, V2, and V3 are set between 5ml and 200ml, and S2<S3≤S1, V2<V3<V1, that is, the water flow rate and water volume in each step are different, and only under the above-mentioned flow rate and water volume, can the process of emulsification, extraction, and finally mixing be formed, so that the production process of milk coffee beverages can be carried out in an orderly manner, which can effectively improve the preparation and extraction effects of milk powder and coffee powder, and ensure the taste and concentration of milk coffee beverages.

[0032] 9. By setting a segmented extraction process in the extraction step, it is possible to prevent the capsule from being broken due to excessive pressure in the second cavity caused by continuous water injection, thereby ensuring the normal use of the capsule; at the same time, the interval time in each extraction process is T, 0.1s≤T≤5s, and the segmented extraction process is repeated N times, and N≥2, so that the coffee powder can be fully extracted without being over-extracted, ensuring that the extracted coffee liquid has a good taste, and also ensuring the pressure balance inside the milk coffee capsule, avoiding the cup bursting, and improving the safety during use. When T is less than 0.1s, the interval time is too short, resulting in the water flow being replaced by the newly injected water flow before the coffee powder is completely extracted and discharged, resulting in insufficient extraction of the coffee powder, affecting the taste and concentration of the coffee liquid, and also causing too much liquid flow in the second cavity, resulting in excessive pressure causing the capsule to burst; when T is greater than 5s, the interval time is too long, reducing the extraction efficiency, and also causing the coffee powder to soak in water for too long, and the coffee powder is over-extracted, resulting in the bitter taste of the formed coffee liquid, affecting the taste of the milk coffee drink.

[0033] 10. By setting the blowing process in the mixing step, it can not only promote the mixing of coffee liquid and milk liquid, but also squeeze out the water absorbed by the coffee powder, increase the concentration of the coffee liquid, speed up the discharge efficiency of the milk coffee drink, and save the drink making time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] Figure 1 The figure is a schematic diagram of the structure of the capsule beverage machine of the present invention.

[0036] Figure 2 It is a cross-sectional view of the milk coffee capsule for the capsule beverage machine of the present invention.

[0037] Figure 3 It is a schematic structural diagram of a separator in a milk coffee capsule for a capsule beverage machine according to the present invention.

[0038] Figure 4 This is a top view of the separator in the milk coffee capsule for the capsule beverage machine of the present invention.

[0039] Figure 5 This is a schematic diagram of the internal state of the capsule beverage machine of the present invention when preparing milk coffee capsules.

[0040] Figure 6 This is another schematic diagram of the structure of the milk coffee capsule for the capsule beverage machine of the present invention.

[0041] The names of the components in the figure are as follows:

[0042] 1. Machine base; 2. Brewing chamber; 3. Brewing head; 4. Brewing cup; 5. Water inlet needle; 6. Lead-out needle; 71. Water tank; 72. Boiler; 73. Water pump; 8. Milk coffee capsule; 81. Capsule body; 811. Side wall; 812. Bottom wall; 82. Diaphragm; 83. Separator; 831. Filter bracket; 832. Filter paper; 833. Middle ring; 834. Diverter plate; 835. Diverter hole; 836. Surrounding wall; 837. Rib; 838. Cylinder; 84. First cavity; 85. Second cavity. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following words indicating orientation or position relationship such as "upper", "lower", "left", "right", "longitudinal", "lateral", "inner", "outer", "vertical", "horizontal", "top", "bottom", etc. are only based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0044] like Figures 1 to 6 As shown, the present invention provides a capsule beverage machine for making milk coffee beverages, including a machine base 1, a brewing chamber 2, a brewing head 3, a brewing cup 4, a water inlet needle 5, a lead-out needle 6, a liquid supply mechanism and a control panel (not shown in the figure). The control panel is arranged in the machine base 1, the brewing chamber 2 is arranged on the machine base 1, a milk coffee capsule is placed in the brewing cup 4, one end of the brewing head 3 is connected to the liquid supply mechanism, and the other end provides water to the milk coffee capsule 8, the water inlet needle 5 and the lead-out needle 6 are arranged on the brewing head 3, the brewing cup 4 can make a reciprocating motion relative to the brewing head 3, and the liquid supply mechanism includes a water tank 71, a boiler 72 and a water pump 73,

[0045] The milk coffee capsule includes a capsule body 81 and a diaphragm 82 sealed with the capsule body 81. The capsule body 81 includes a side wall 811 and a bottom wall 812. The water in the water tank 71 enters the boiler 72 for heating under the action of the water pump 73. After the water inlet needle 5 and the lead-out needle 6 penetrate the diaphragm 82, the water in the boiler 72 is introduced into the milk coffee capsule 8 by the water inlet needle 5 under the action of the water pump 73. After the water and the beverage powder in the milk coffee capsule 8 are mixed with each other, the milk coffee capsule is led out through the lead-out needle 6.

[0046] Specifically, the milk coffee capsule 8 of the present invention also includes a partition 83 through which water can pass. The partition 83 is arranged in the capsule body 81 and divides the inner cavity of the capsule body 81 into a first cavity 84 and a second cavity 85. The first cavity 84 and the second cavity 85 are both provided with beverage powder. The beverage powder in the first cavity 84 is milk powder or milk powder, and the beverage powder in the second cavity 85 is coffee powder. By setting the partition, the capsule body is divided into a first cavity and a second cavity, and the first cavity is filled with milk powder, and the second cavity is filled with coffee powder. In this way, when making milk coffee, only one operation is required, and there is no need to operate twice, thereby reducing the operating steps, simplifying user operation, improving humanization, and simplifying the production. Secondly, one capsule can produce milk coffee drinks without increasing packaging materials, which is environmentally friendly and reduces production and processing costs, thereby reducing user consumption costs.

[0047] Specifically, the method for preparing a milk coffee beverage by the capsule beverage machine of the present invention comprises:

[0048] (1) The customer puts the milk coffee capsule 8 into the capsule beverage machine and presses the start button, and the beverage machine starts working;

[0049] (2) Emulsification step: the water inlet needle 5 pierces the milk coffee capsule, and the lead-out needle 6 extends into the first cavity 84. The control panel controls the liquid supply mechanism to inject V1 ml of water into the milk coffee capsule through the water inlet needle 5 at a flow rate of S1 ml / s. The water enters the first cavity 84 and contacts and dissolves the milk powder to form milk liquid; wherein 10 ml / s≤S1≤15 ml / s, 5 ml≤V1≤200 ml;

[0050] (3) Extraction step: the control panel controls the liquid supply mechanism to inject V2 ml of water into the milk coffee capsule through the water inlet needle 5 at a flow rate of S2 ml / s. The water enters the second cavity 85 and fully infiltrates the coffee powder to form coffee liquid; wherein 1 ml / s≤S2≤10 ml / s, 5 ml≤V2≤200 ml;

[0051] (4) Mixing step: the control panel controls the liquid supply mechanism to inject V3 ml of water into the milk coffee capsule through the water inlet needle 5 at a flow rate of S3 ml / s. The coffee liquid formed in the extraction step flows to the first cavity 84 through the partition 83 under the pressure of the continuously injected water and is fully mixed with the milk liquid to form a milk coffee drink; wherein 10 ml / s≤S3≤15 ml / s, 5 ml≤V3≤200 ml;

[0052] (5) Beverage discharge step: draw the prepared milk coffee beverage out of the milk coffee capsule through the draw-out needle.

[0053] The advantage of the above-mentioned method for preparing milk coffee beverage is that, by adopting the structure of the above-mentioned milk coffee capsule, the method for preparing milk coffee beverage includes an emulsification step, an extraction step and a mixing step, so that the milk powder is first emulsified, dissolved and brewed, and then the coffee powder is extracted and filtered, and finally the milk liquid and the coffee liquid are mixed to form the milk coffee beverage. Compared with the existing preparation method, in this method, the milk liquid and the coffee liquid are fully mixed, and the milk liquid will not float on the surface of the coffee liquid, which not only improves the taste of the milk coffee beverage, but also makes the color and appearance of the milk coffee beverage good, thereby improving the attractiveness of the milk coffee beverage; in addition, since the protein content of the milk powder is relatively high and it is not easy to dissolve, in order to improve the dissolution rate, in the emulsification step, the The control board controls the liquid supply mechanism to inject V1ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S1ml / s, which not only ensures the brewing effect, but also ensures the taste and concentration of the brewed milk; secondly, in the extraction step, the control board controls the liquid supply mechanism to inject V2ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S2ml / s, which not only ensures the extraction efficiency, but also ensures the taste and concentration of the extracted coffee liquid; and, in the mixing step, the control board controls the liquid supply mechanism to inject V3ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S3ml / s, which not only ensures that the milk and coffee liquid are fully mixed, but also mixes quickly, thereby improving the brewing efficiency of the milk coffee drink.

[0054] The following describes in detail the method for making milk coffee in combination with the structure of a specific capsule beverage machine.

[0055] Embodiment 1:

[0056] As a capsule beverage machine for making milk coffee beverages according to the invention, Figure 1 As shown, it includes a machine base 1, a brewing chamber 2, a brewing head 3, a brewing cup 4, a water inlet needle 5, a water outlet needle 6, a liquid supply mechanism and a control panel (not shown in the figure). The brewing chamber 2 and the control panel are arranged in the machine base 1, and the brewing head 3 is arranged at one end of the brewing chamber 2. The brewing cup 4 can make a reciprocating motion relative to the brewing head 3 in the brewing chamber. One end of the brewing head 3 is connected to the liquid supply mechanism, and the other end provides water to the milk coffee capsule 8. In this embodiment, the water inlet needle 5 and the lead-out needle 6 are arranged on the same side of the brewing head 3 and are arranged horizontally, that is, the central axes of the water inlet needle and the lead-out needle are both arranged horizontally, which can also be understood as being arranged in a horizontal direction. When the milk coffee capsule is located in the brewing cup, the milk coffee capsule is correspondingly arranged horizontally. The horizontal arrangement here refers to the horizontal arrangement of the central axis of the milk coffee capsule, which can also be understood as being arranged horizontally, and can also be understood as the milk coffee capsule being placed horizontally. When water is mixed and extracted with milk powder and coffee powder in the milk coffee capsule to form a milk coffee drink, since the milk coffee capsule is placed horizontally, the milk coffee drink flows to the side of the lead-out needle under the action of its own gravity, which facilitates the discharge of the milk coffee drink from the milk coffee capsule.

[0057] The liquid supply mechanism includes a water tank 71, a boiler 72 and a water pump 73. The water in the water tank 71 enters the boiler 72 for heating under the action of the water pump 73. Under the action of the driving mechanism, the milk coffee capsule 8 placed in the brewing cup 4 moves in the brewing chamber 2 until it moves to the brewing head 3 to prepare the beverage. After the water inlet needle 5 and the lead-out needle 6 penetrate the diaphragm 82, the water in the boiler 72 is introduced into the milk coffee capsule 8 by the water inlet needle 5 under the action of the water pump 73. After the water and the beverage powder in the milk coffee capsule 8 are mixed with each other, the milk coffee capsule is led out through the lead-out needle 6.

[0058] In this embodiment, the milk coffee capsule includes a capsule body 81 and a diaphragm 82 sealed with the capsule body 81, the capsule body 81 includes a side wall 811 and a bottom wall 812, and the milk coffee capsule is also provided with a partition 83 through which water can pass, the partition 83 is arranged in the capsule body 81 and divides the inner cavity of the capsule body 81 into a first cavity 84 and a second cavity 85, the first cavity 84 and the second cavity 85 are distributed up and down, and the first cavity 84 and the second cavity 85 are both provided with beverage powder, the beverage powder in the first cavity 84 is milk powder, and the beverage powder in the second cavity The beverage powder in 85 is coffee powder, and the separator 83 includes a filter bracket 831 and a filter paper 832 fixed by the filter bracket. The filter bracket 831 is provided with a middle ring 833 extending to the diaphragm, and a water inlet channel is provided in the middle ring 833, and a gap is provided between the upper end of the middle ring 833 and the diaphragm 82. A diverter plate 834 is provided in the middle ring 833, and a diverter hole 835 connecting the first cavity 84 and the second cavity 82 is provided on the diverter plate 834. The speed at which water enters the first cavity 84 from the gap is greater than the speed at which water enters the second cavity 85 from the diverter hole 835.

[0059] The advantage of such a configuration is that by distributing the first cavity and the second cavity up and down, the milk powder and the coffee powder are respectively arranged in independent cavities, which not only avoids the two beverage powders from mixing together for a long time to affect the taste of the beverage, but also prolongs the shelf life of the beverage powder and makes the produced milk coffee beverage more delicious; at the same time, by setting a middle ring, and a water inlet channel is provided in the middle ring and a gap is provided between the upper end of the middle ring and the diaphragm, a diverter plate is provided in the middle ring, and a diverter hole connecting the first cavity and the second cavity is provided on the diverter plate, so that water flows according to a predetermined channel, and the emulsification, extraction and mixing are more complete, so that the produced milk coffee beverage is more delicious and beautiful in color, thereby improving the user's appetite.

[0060] The method for preparing the milk coffee beverage in this embodiment is as follows: Figure 5 The internal state of the milk coffee capsule when it is brewed is shown in the figure. The direction of the arrow indicates the direction of liquid flow. The specific process is as follows:

[0061] (1) The customer puts the milk coffee capsule 8 into the capsule beverage machine and presses the start button, and the beverage machine starts working;

[0062] (2) Emulsification step: the water inlet needle 5 pierces the diaphragm 82 of the milk coffee capsule 8 to be inserted into the middle ring 833, and the lead-out needle 6 simultaneously pierces the diaphragm 82 of the milk coffee capsule 8 and extends into the first cavity 84. The control board controls the liquid supply mechanism to inject 55 ml of water into the milk coffee capsule 8 through the water inlet needle 5 at a flow rate of 13 ml / s, so that the water forms a large pressure in the gap between the upper end of the middle ring 833 and the diaphragm 82. The diverter plate 834 will produce a certain barrier to the water flow and form a back-splash effect on the water, so that the water flow first quickly ejects from the gap between the upper end of the middle ring 833 and the diaphragm 82, and forms a vortex in the first cavity 84. Driven by the vortex, the milk powder is fully mixed with the water and dissolved to form milk liquid;

[0063] (3) Extraction step: The control panel controls the liquid supply mechanism to inject 88 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of 4 ml / s. The water enters the second cavity 85 from the diversion hole 835 and fully soaks the coffee powder to form coffee liquid.

[0064] (4) Mixing step: The control panel controls the liquid supply mechanism to inject 32 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of 13 ml / s. The coffee liquid formed in the extraction step is filtered through the filter paper 832 under the pressure of the continuously injected water and flows into the first cavity 84, and then is fully mixed with the milk to form a milk coffee drink;

[0065] (5) Beverage discharge step: draw the prepared milk coffee beverage out of the milk coffee capsule through the draw-out needle.

[0066] The advantage of the above-mentioned method for preparing milk coffee beverage is that by setting the milk coffee making method to include an emulsification step, an extraction step and a mixing step, the milk powder is first emulsified and brewed, the coffee powder is extracted and filtered, and finally the milk liquid and the coffee liquid are mixed to form a milk coffee beverage. Compared with the existing preparation method, in this method, the milk liquid and the coffee liquid are fully mixed, and the milk liquid will not float on the surface of the coffee liquid, which not only improves the taste of the milk coffee beverage, but also the color and appearance of the milk coffee beverage are good, thereby enhancing the attractiveness of the milk coffee beverage.

[0067] In the emulsification step of the above method, at this water flow speed and water volume, the water can form a large pressure in the gap between the upper end of the middle ring 833 and the diaphragm 82, and the speed at which the water enters the first cavity 84 from the gap is greater than the speed at which the water enters the second cavity 85 from the diverter hole 835. In this way, during the emulsification step, the diverter plate 834 will produce a certain obstruction to the water flow and form a back-splashing effect on the water, so that the water flow first quickly ejects from the gap between the upper end of the middle ring and the diaphragm 82, and forms a vortex in the first cavity 84. Driven by the vortex, the milk powder is fully mixed with the water and dissolved, which not only ensures the concentration of the milk after mixing, but also improves the dissolution rate of the milk powder, avoids the waste of milk powder, but also improves the mixing efficiency and shortens the preparation time of the beverage.

[0068] In the extraction step of the above method, at this water flow rate and water volume, it can effectively ensure that the coffee powder is fully extracted and not over-extracted, thereby ensuring that the extracted coffee liquid is not too bitter, thereby improving the taste of the extracted coffee liquid.

[0069] In the mixing step of the above method, at this water flow rate and water volume, it can be ensured that the milk liquid and the coffee liquid are fully mixed, and the mixing is fast, thereby improving the preparation efficiency of the milk coffee drink.

[0070] More specifically, in the emulsification step, the control panel controls the water pump to work at 80%-100% of the rated power, specifically 100%. After 55 ml of water is injected, the water pump stops working for 5 seconds. Since the water pump is working at full power at this time, the water flow speed is fast, so that the water flow can better form a vortex in the first cavity, improve the dissolution rate of the milk powder, and at the same time play a micro-pressure emulsification effect, and improve the smoothness of the taste of the formed milk. Of course, the water pump can also work at 80%, 85%, 90%, 95%, 96%, 98% and other rated powers, depending on the specific situation.

[0071] In the extraction step, the control panel controls the water pump to work at 10%-80% of the rated power, specifically 31%, and injects 88ml of water into the second chamber. In this step, extraction is performed at a relatively low power and the water flow rate is relatively slow. Due to the existence of pressure, the newly entered water presses out and completely replaces the original water that soaks the coffee powder, so that the coffee powder can be fully extracted and the extraction efficiency is high. Of course, the water pump can also work at a rated power of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, etc., depending on the specific situation.

[0072] In the mixing step, the control panel controls the water pump to work at 20%-100% of the rated power, specifically 100%, and continuously injects 32ml of water into the capsule. In this step, the water pump works at full power, and the water flow speed is accelerated, so that the coffee liquid quickly passes through the filter paper and mixes with the milk liquid, so that the milk liquid and the coffee liquid mix with each other and form a vortex, so that the milk liquid and the coffee liquid are fully mixed, which not only improves the taste of the milk coffee drink, but also has high mixing efficiency. Of course, the water pump can also work at a rated power of 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, etc., depending on the specific situation.

[0073] Understandable, such as Figure 3 , 4As shown, the filter bracket 831 is also provided with a surrounding wall 836 located on the outer periphery of the middle ring 833 and extending toward the diaphragm 82, and ribs 837 are provided inside the surrounding wall 836. There are a plurality of ribs 837 and they are evenly distributed on the inner surface of the surrounding wall 836. In this way, during the emulsification step and the mixing step, the milk can generate better vortex under the action of the surrounding wall and the ribs, which not only makes the milk mixed better in the emulsification step, but also makes the milk and coffee liquid mix more fully in the mixing step, thereby better improving the taste of the milk coffee drink.

[0074] It can be understood that S1 can also be 10ml / s, 11ml / s, 12ml / s, 14ml / s, 15ml / s, etc.; S2 can also be 1ml / s, 2ml / s, 3ml / s, 5ml / s, 6ml / s, 7ml / s, 8ml / s, 9ml / s, 10ml / s, etc.; S3 can also be 10ml / s, 11ml / s, 12ml / s, 14ml / s, 15ml / s, etc., as long as S2<S3≤S1 is satisfied, and the final decision depends on the specific situation.

[0075] It can be understood that V1, V2 and V3 can also be 5ml, 10ml, 15ml, 20ml, 30ml, 40ml, 50ml, 60ml, 70ml, 80ml, 90ml, 100ml, 110ml, 120ml, 130ml, 140ml, 150ml, 160ml, 170ml, 180ml, 190ml, 200ml, etc., as long as V2<V3<V1, and the final decision will depend on the specific situation.

[0076] It is understandable that the filter paper may also be other filter elements, such as a filter mesh, etc.

[0077] Embodiment 2:

[0078] The difference between this embodiment and the first embodiment is that the extraction steps are different, that is, the extraction steps include a segmented extraction process.

[0079] In this embodiment, the extraction step includes a segmented extraction process: the liquid supply mechanism injects a certain amount of water and then stops for a period of time, and then continues to inject water, and this cycle is repeated N times, N≥2, and the interval time between each extraction process in the segmented extraction process is T, 0.1s≤T≤5s.

[0080] Specifically, S2 is 4 ml / s, V2 is 88 ml, N=11 times, T=2s, and this setting means that 88 ml of water is injected into the second cavity 84 11 times, 8 ml is injected each time, and the interval between each injection is 2s. The rest of the structure of the milk coffee capsule, the structure of the capsule beverage machine and its effects of this embodiment are consistent with those of the first embodiment, and will not be described one by one here.

[0081] The advantage of this arrangement is that, by arranging a segmented extraction process in the extraction step, this can prevent continuous water injection from causing excessive pressure in the second cavity to cause the capsule to rupture, thereby ensuring the normal use of the capsule; at the same time, the interval time in each extraction process is T, 0.1s≤T≤5s, and the segmented extraction process is repeated N times, and N≥2, so that the coffee powder can be fully extracted without being over-extracted, ensuring that the extracted coffee liquid tastes good, and also ensuring the pressure balance inside the milk coffee capsule, avoiding the cup from exploding, and improving safety during use.

[0082] It can be understood that N can also be 2 times, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, 12 times, 13 times, 15 times, etc., depending on the specific circumstances.

[0083] It can be understood that T can also be 0.1s, 0.2s, 0.5s, 0.6s, 0.8s, 1s, 1.5s, 2s, 2.5s, 3s, 3.5s, 4s, 5s, etc., depending on the specific situation.

[0084] Embodiment three:

[0085] The difference between this embodiment and the first and second embodiments is that the liquid supply mechanism further includes an air pump, and the mixing step includes a blowing process.

[0086] In this embodiment, the liquid supply mechanism includes an air pump. Specifically, the air pump is arranged in the machine base and connected to the water inlet needle through a pipeline. The air pump is electrically connected to the control board and is controlled by the control board. The mixing step also includes a blowing process: the control board controls the air pump to blow air, and the gas enters the second cavity through the water inlet needle and pushes the coffee liquid through the partition to mix with the milk liquid in the first cavity.

[0087] Specifically, the air flow velocity during the blowing process is S4, 10ml / s≤S4≤30ml / s, specifically, S4 is 12.5m / s, and the air is blown by the air pump, and the gas quickly passes through the diverter plate of the middle ring into the second cavity 85, and forms a certain pressure in the second cavity 85, pushing the water absorbed by the coffee powder to quickly pass through the filter paper 832 and mix with the milk in the first cavity 84, which not only promotes the mixing of coffee liquid and milk, but also can squeeze out the water absorbed by the coffee powder, improve the concentration of the coffee liquid, and speed up the discharge efficiency of the milk coffee drink, saving the time of making the drink. When S4 is less than 10ml / s, the air flow velocity is too small, and the blending effect of the coffee liquid and the milk is weak; when S4 is greater than 30 ml / s, the air flow velocity is too large, and the pressure inside the second cavity is too large, which will cause the filter paper to rupture and cause the coffee powder in the second cavity to enter the first cavity, affecting the taste of the milk coffee drink. The rest of the structure of the milk coffee capsule, the structure of the capsule beverage machine and its effects of this embodiment are consistent with those of the first and second embodiments, and will not be described in detail here.

[0088] More specifically, the control panel controls the air pump to work at 10%-100% of the rated power, specifically 50%, and the working time is 8 seconds, so that the air pump works within a reasonable rated power range, which not only ensures that the air pump can discharge the beverage well, but also does not generate a large pressure, and ensures the normal operation of the capsule. Of course, the air pump can also work at 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% of the rated power, and the working time can also be 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 9 seconds, 10 seconds, etc., depending on the specific situation.

[0089] The blowing process in this embodiment is preset by the program, so that automatic blowing can be achieved, and the production of milk coffee drinks can be done with one button. Of course, a blowing button can also be set separately, and the blowing process can be achieved by manually pressing the blowing button, so that blowing or not blowing can be selected according to the user's habits.

[0090] It can be understood that S4 can also be 10ml / s, 12ml / s, 14ml / s, 15ml / s, 16ml / s, 18ml / s, 20ml / s, 22ml / s, 24ml / s, 25ml / s, 26ml / s, 28ml / s, 30ml / s, etc., depending on the specific situation.

[0091] Embodiment 4:

[0092] The difference between this embodiment and the first, second and third embodiments is that the structure of the milk coffee capsule is different, specifically, the separators provided in the milk coffee capsule are different.

[0093] In this embodiment, specifically, Figure 6As shown, the milk coffee capsule includes a capsule body 81 and a diaphragm 82, the capsule body 81 includes a side wall 811 and a bottom wall 812, the inner cavity of the capsule body is provided with a partition 83, the partition 83 includes a cylinder 838, the cylinder 838 is arranged at the center of the capsule body 81, the inner wall of the cylinder 838, the bottom wall 812 of the capsule body 81 and the diaphragm 82 together form a first cavity 84, the outer peripheral wall of the cylinder 838, the side wall 811 of the capsule body 81, the bottom wall 812 of the capsule body 81 and the diaphragm 82 together form a second cavity 85, the second cavity 85 is arranged around the outer periphery of the first cavity 84, and a gap is provided between the upper end of the cylinder 838 and the diaphragm 82. The water inlet needle and the outlet needle are located on the same side. During the emulsification step, the water inlet needle pierces the capsule membrane to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. After the first cavity is filled with milk liquid and continuously injected water, the milk liquid and continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the membrane, and soak the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity. The rest of the structure of the milk coffee capsule, the structure of the capsule beverage machine and its effects of this embodiment are consistent with those of embodiments one, two and three, and will not be repeated here.

[0094] The advantage of this embodiment is that it ensures that water can enter the first cavity and the second cavity, and the water flows regularly and circulates in the first cavity and the second cavity, which not only speeds up the preparation and extraction of milk powder and coffee powder, improves the efficiency of beverage preparation, but also ensures the preparation effect of the beverage, and the flow path of water in the capsule is orderly, and the flow path of water and milk powder or coffee powder after forming milk liquid or coffee liquid is also orderly, so water and milk liquid or coffee liquid circulate regularly in the capsule, effectively realizing the full mixing or extraction of water and milk powder or coffee powder, and having a good dissolution or extraction effect.

[0095] It can be understood that the capsule of this embodiment can adopt the following structure: a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body, the water inlet needle and the outlet needle are located on the same side, and during the emulsification step, the water inlet needle pierces the membrane of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid, and after the first cavity is filled with milk liquid and continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the lower end of the cylinder and the bottom wall of the capsule body, and infiltrate the coffee powder in the second cavity to form coffee liquid, and the coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee beverage, which is discharged through the outlet needle inserted into the first cavity.

[0096] It can be understood that the capsule of this embodiment can also adopt the following structure: a gap is provided between the upper end of the cylinder and the diaphragm, and a gap is also provided between the lower end of the body and the bottom wall of the capsule body, and the water inlet needle and the lead-out needle are located on both sides. During the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. After the first cavity is filled with milk liquid and continuously injected water, the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows into the first cavity from the gap between the lower end of the cylinder and the bottom of the capsule body and mixes with the milk to form a milk coffee drink, which is discharged through the lead-out needle inserted into the first cavity.

[0097] Of course, it can be understood that the method for making milk coffee drinks of the present invention can also be applied to the following capsule drinks (not shown in the figure), the capsule drink machine includes a machine base, a brewing chamber and a control panel arranged in the machine base, a brewing head, a liquid supply mechanism, a linkage mechanism, a handle and a brewing cup for accommodating milk coffee capsules. The brewing head is arranged in the brewing chamber, and the brewing head is connected to the handle through a linkage mechanism. The brewing cup is inserted into the brewing chamber from one side of the machine base, the liquid supply mechanism is electrically connected to the control panel, the liquid supply mechanism provides water to the brewing head, and the brewing cup that has been inserted and the brewing head that has moved to the bottom form a brewing chamber. A water inlet needle is provided on the brewing head, and the brewing cup includes an inner cup and an outer cup. The inner cup is provided with a cavity for accommodating milk coffee capsules, and a lead-out needle is provided at the bottom of the cavity. The milk coffee drink formed by brewing in the milk coffee capsule flows out of the milk coffee capsule from the lead-out needle. When using the vertical capsule beverage machine to prepare beverages, the central axis of the capsule is arranged vertically, that is, the capsule is placed vertically, so that the beverage can be prepared. Since the structure of the capsule beverage machine is already an existing structure, it will not be described in detail here.

[0098] In addition, the above two capsule beverage machines are both equipped with a control panel, and the user selects the appropriate function through the control panel. Specifically, the control panel includes 3 buttons, corresponding to the brewing function, extraction function and mixing function respectively. In this way, the capsule beverage machine can not only brew ordinary capsules, such as milk powder capsules and soy powder capsules when the brewing function is used, coffee capsules can be prepared when the extraction function is used, and milk coffee capsules can be prepared when the mixing function is used.

[0099] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. A method for making a milk coffee drink using a capsule beverage machine, the capsule beverage machine comprising a machine base, a brewing chamber and a control panel arranged in the machine base, a brewing head, a water inlet needle arranged on the brewing head, a water outlet needle, a liquid supply mechanism for providing liquid to the brewing head, and a brewing cup for accommodating a milk coffee capsule, the milk coffee capsule comprising a capsule body and a diaphragm sealed with the capsule body, the capsule body comprising a bottom wall and a side wall, characterized in that: The milk coffee capsule also includes a partition through which liquid can flow, the partition is arranged in the capsule body and divides the inner cavity of the capsule body into a first cavity and a second cavity, the first cavity and the second cavity are both provided with beverage powder, the beverage powder in the first cavity is milk powder, and the beverage powder in the second cavity is coffee powder. The method for making a milk coffee beverage by a capsule beverage machine includes: Emulsification step: the water inlet needle pierces the milk coffee capsule, and the lead-out needle extends into the first cavity. The control panel controls the liquid supply mechanism to inject V1 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S1 ml / s. The water enters the first cavity and contacts and dissolves the milk powder to form milk liquid. Extraction step: the control panel controls the liquid supply mechanism to inject V2ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S2ml / s. The water enters the second cavity and fully soaks the coffee powder to form coffee liquid. Mixing step: the control panel controls the liquid supply mechanism to inject V3 ml of water into the milk coffee capsule through the water inlet needle at a flow rate of S3 ml / s. The coffee liquid formed in the extraction step flows to the first cavity through the partition under the pressure of the continuously injected water and is fully mixed with the milk liquid to form a milk coffee drink; Beverage discharge step: draw out the prepared milk coffee beverage from the milk coffee capsule through the drawing out needle; The 1ml / s≤S2<S3≤S1≤15ml / s, and the 5ml≤V2<V3<V1≤200ml.

2. The method according to claim 1, characterized in that The first cavity and the second cavity are distributed up and down, and the separator includes a filter bracket and filter paper fixed by the filter bracket. The filter bracket is provided with a middle ring extending to the diaphragm, a water inlet channel is provided in the middle ring, and a gap is provided between the upper end of the middle ring and the diaphragm, a diverter plate is provided in the middle ring, and a diverter hole connecting the first cavity and the second cavity is provided on the diverter plate.

3. The method according to claim 2, characterized in that The water inlet needle and the lead-out needle are located on the same side. During the emulsification step, the water inlet needle pierces the membrane of the milk coffee capsule to be inserted into the middle ring, and the speed at which water enters the first cavity from the gap is greater than the speed at which water enters the second cavity from the diversion hole, so that the injected water first fills the water inlet channel at the upper end of the middle ring, and then is injected into the first cavity from the gap between the upper end and the membrane, and forms a vortex in the first cavity. Driven by the vortex, the milk powder is fully mixed with the water and dissolved.

4. The method according to claim 3, characterized in that After the emulsification step is completed and milk has been formed in the first cavity, water continues to be injected into the first cavity. If the flow rate of the continuously injected water is lower than the flow rate of the water in the emulsification step, the injected water enters the second cavity through the diversion hole to fully wet the coffee powder in the second cavity and form coffee liquid. The coffee liquid passes through the filter paper under the pressure of the continuously injected water and mixes with the milk in the first cavity to finally form a milk coffee drink.

5. The method according to claim 1, characterized in that The partition comprises a cylinder, which is arranged at the center of the capsule body; the inner wall of the cylinder, the bottom wall of the capsule body and the diaphragm together form a first cavity; the outer peripheral wall of the cylinder, the side wall of the capsule body, the bottom wall of the capsule body and the diaphragm together form a second cavity; the second cavity is arranged around the periphery of the first cavity, and a gap is provided between the upper end of the cylinder and the diaphragm; or, a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body; or, a gap is provided between the upper end of the cylinder and the diaphragm, and a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body.

6. The method according to claim 5, characterized in that A gap is provided between the upper end of the cylinder and the diaphragm, and the water inlet needle and the outlet needle are located on the same side. During the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. Water is continuously injected, and the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity. Alternatively, a gap is provided between the lower end of the barrel and the bottom wall of the capsule body, and the water inlet needle and the outlet needle are located on the same side. During the emulsification step, the water inlet needle pierces the capsule membrane to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid. Water is continuously injected, and the milk liquid and the continuously injected water enter the second cavity from the gap between the lower end of the barrel and the bottom wall of the capsule body, and infiltrate the coffee powder in the second cavity to form coffee liquid. The coffee liquid flows back into the first cavity and mixes with the milk liquid to form a milk coffee drink, which is discharged through the outlet needle inserted into the first cavity. Alternatively, a gap is provided between the upper end of the cylinder and the diaphragm, a gap is provided between the lower end of the cylinder and the bottom wall of the capsule body, the water inlet needle and the lead-out needle are located on both sides, and during the emulsification step, the water inlet needle pierces the diaphragm of the capsule to be inserted into the first cavity, and dissolves the milk powder in the first cavity to form milk liquid, and continuously injects water, the milk liquid and the continuously injected water enter the second cavity from the gap between the upper end of the cylinder and the diaphragm, and infiltrate the coffee powder in the second cavity to form coffee liquid, the coffee liquid flows into the first cavity from the gap between the lower end of the cylinder and the bottom of the capsule body and mixes with the milk liquid to form a milk coffee drink, and the milk coffee drink is discharged through the lead-out needle inserted into the first cavity.

7. The method according to any one of claims 1 to 6, characterized in that: The central axes of the water inlet needle, the outlet needle and the milk coffee capsule are all arranged horizontally.

8. The method according to any one of claims 1 to 6, characterized in that: The extraction step includes a segmented extraction process: the liquid supply mechanism injects a certain amount of water, stops for a period of time, and then continues to inject water, and repeats this cycle N times, N≥2, and the interval time between each extraction process in the segmented extraction process is T, 0.1s≤T≤5s.

9. The method according to any one of claims 1 to 6, characterized in that: The mixing step also includes a blowing process: the control panel controls the liquid supply mechanism to blow air, and the gas enters the second cavity through the water inlet needle and pushes the coffee liquid through the partition to mix with the milk liquid in the first cavity.

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