A coffee machine powder container movement structure
By designing the coffee maker's coffee powder cartridge movement structure, the problem of uneven coffee powder density in fully automatic coffee machines has been solved, achieving the formation of coffee powder with uniform density and uniform extraction, thus improving the taste of coffee and the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2026-04-03
AI Technical Summary
In existing fully automatic coffee machines, the density of the coffee puck formed during the tamping process is uneven, which affects the coffee extraction effect and taste.
Design a coffee machine powder receiving cylinder movement structure. Through the cooperation of the powder receiving cylinder assembly, the fixing assembly and the tamping cylinder assembly, the movement of the powder receiving cylinder assembly is controlled by the lead screw assembly, so that it moves along the connecting rod fixing axis to the bottom of the tamping cylinder assembly, realizing the vertical coaxial concentric extrusion of coffee powder to form a cylindrical powder cake with uniform density. The design of the slider and the flip cover realizes the effective discharge of the powder cake.
To ensure the coffee puck has a smooth surface and uniform density, improve the extraction effect and taste of the coffee liquid, and guarantee the practicality and advancement of the device.
Smart Images

Figure CN117582117B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of coffee machine technology, and in particular to a moving structure for a coffee machine powder receiving hopper. Background Technology
[0002] Coffee, a beverage made from roasted and ground coffee beans, is increasingly popular around the world. The resulting "coffee culture" permeates every aspect of life. Whether at home, in the office, or at various social occasions, people are enjoying coffee, which has gradually become associated with fashion, modern life, work, and leisure.
[0003] With the rapid development of society and people's ever-increasing material needs, fully automatic coffee machines have emerged. The workflow of a fully automatic coffee machine includes grinding, extraction, and tamping. Grinding is the process of grinding coffee beans into powder. Extraction is the process of adding water to the ground coffee powder and then filtering and brewing it to obtain coffee liquid. Tamping is the process of extruding the coffee powder into a cake shape, which makes it easier for the fully automatic coffee machine to handle the coffee powder.
[0004] Existing fully automatic coffee machines, due to limitations in materials and space, mostly use a method of pressing coffee powder at an angle to create a coffee puck during the tamping step.
[0005] However, some shortcomings still exist in actual use:
[0006] 1. During the extrusion of coffee powder, the coffee powder first falls into a tilted container. After being subjected to external pressure, it forms a pouch. However, while in the tilted container, the coffee powder will flow to the tilted side due to gravity, thus forming a pouch with an uneven surface and unbalanced weight.
[0007] 2. An unbalanced coffee puck will also have an uneven density. However, the goal in making coffee is to make the water flow as evenly as possible across the entire puck. If there are areas of uneven density in the puck, the water will flow at different speeds in each area, resulting in uneven extraction of the entire puck and affecting the taste of the coffee.
[0008] In view of this, the present invention proposes a coffee machine powder receiving cylinder movement structure to solve the above problems. Summary of the Invention
[0009] This invention provides a moving structure for a coffee machine powder receiving cylinder, which solves the problem of irregular shape and uneven density of the extruded powder cake.
[0010] This invention specifically relates to a moving structure for a coffee machine's powder container, comprising a housing.
[0011] The chamber is equipped with a bean grinding assembly, a powder pressing cylinder assembly is provided on one side of the bean grinding assembly, a powder receiving cylinder assembly is provided below the powder pressing cylinder assembly, a connecting rod fixed shaft moving track is provided between the powder pressing cylinder assembly and the powder receiving cylinder assembly, a fixing assembly is snapped to one side of the powder receiving cylinder assembly, and a lead screw assembly is connected to the fixing assembly.
[0012] The coffee grinding assembly is used to feed coffee powder into the coffee powder receiving cylinder assembly;
[0013] Preferably, the lead screw assembly drives the fixing assembly to move, and the fixing assembly drives the powder receiving cylinder assembly to move upward along the connecting rod fixed shaft motion track to below the powder tamping cylinder assembly and engage with the powder tamping cylinder assembly. The powder tamping cylinder assembly applies downward force, cooperating with the powder receiving cylinder assembly to extrude the coffee powder into a uniformly dense powder cake.
[0014] Preferably, a partition is placed inside the box body, which divides the box body into two parts. The grinding assembly, the pressing cylinder assembly, and the receiving cylinder assembly are arranged on one side of the partition, and the lead screw assembly is arranged on the other side of the partition. The lead screw assembly is connected to a motor, and the fixed shaft motion track is fixedly arranged on one side of the partition.
[0015] Preferably, the powder receiving assembly includes a powder cylinder, a coffee liquid chamber is provided below the powder cylinder, a coffee liquid chamber pipe is provided on the side wall of the coffee liquid chamber, and a powder cylinder filter screen is provided between the powder cylinder and the coffee liquid chamber.
[0016] Preferably, a first slider is bolted to one side of the powder cylinder, a slider spring is provided between the first slider and the powder cylinder, a pressure plate is provided below the first slider, and an inclined surface is provided on the surface of the first slider. A hinge shaft is elastically connected to the other side of the powder cylinder, and a flip cover is provided below the pressure plate and the coffee liquid cavity. One end of the hinge shaft is fixed inside the flip cover.
[0017] Preferably, a powder cylinder cover is connected to the side of the powder cylinder, and a buckle is inserted into each side of the powder cylinder cover. One end of a pressing spring is fixedly connected to the inner side of the two sets of buckles, and the other end of the pressing spring is fixed inside the powder cylinder cover.
[0018] Preferably, the fixing component is disposed between the powder receiving cylinder assembly and the partition. The fixing component includes a base, and a connecting rod is disposed between the base and the partition. A connecting rod fixing shaft is disposed on the connecting rod for connecting the base and the moving track of the connecting rod fixing shaft. Two sets of base buckles are disposed on the side of the base away from the partition. The two sets of buckles are connected to each other, and the fixing component and the powder receiving cylinder assembly are separated by pressing the two sets of buckles.
[0019] Preferably, the powder pressing cylinder assembly includes a water pipe and a powder pressing cylinder filter screen, and the water pipe is connected to an external water source.
[0020] Preferably, a side plate is provided on the other side of the powder receiving cylinder assembly, a second slider is provided on the side plate, a second slider spring is provided inside the second slider, the second slider is rhomboid in shape and has an inclined surface.
[0021] Preferably, when the powder receiving cylinder assembly moves downward, the first slider and the second slider collide. Under the interaction of the inclined surfaces of the first slider and the second slider, the first slider pops out. The popped-out first slider hits the hinge shaft, and the hinge shaft rotates, causing the flip cover to rotate and open.
[0022] Preferably, a side plate protrusion is fixedly connected to one side of the partition, and the side plate protrusion is located directly below the powder pressing cylinder assembly shown. A powder residue box is provided below the side plate protrusion. After the flip cover is rotated open, the powder receiving cylinder assembly and the powder pressing cylinder assembly cooperate to push the powder cake into the powder residue box.
[0023] The overall work of this invention is divided into three stages:
[0024] The first stage is the coffee grounds receiving stage, where the grinding component transfers the coffee grounds through the grounds channel to the coffee grounds container of the coffee grounds receiving component;
[0025] The second stage is tamping. Under the indirect drive of the lead screw assembly, the receiving cylinder assembly moves along the fixed axis of the connecting rod to the bottom of the tamping cylinder assembly and engages with it. At this time, the receiving cylinder assembly and the tamping cylinder assembly are coaxial and concentric in the vertical direction. The position of the tamping cylinder assembly remains unchanged. During the upward movement of the receiving cylinder assembly, part of the tamping cylinder assembly enters the cylinder and applies downward pressure to the coffee powder in the cylinder. The two work together to tamp the coffee powder in the cylinder into a cylindrical cake with uniform density.
[0026] The third stage is the powder feeding process. Driven by the lead screw assembly, the powder receiving cylinder assembly moves linearly downward along the connecting rod fixed shaft motion track and separates from the tamping cylinder assembly. During the downward movement of the powder receiving cylinder assembly, the first slider and the second slider collide. Under the interaction of the inclined surfaces of the first slider and the second slider, the first slider pops out, causing the connected flip cover to open. After the flip cover opens, the powder receiving cylinder assembly, driven by the lead screw assembly, moves linearly upward along the connecting rod fixed shaft motion track to the bottom of the tamping cylinder assembly. During this process, the tamping cylinder part enters the powder cylinder and applies downward pressure to the coffee powder in the powder cylinder. However, at this time, the powder powder has no support plate and is squeezed out from the powder cylinder filter screen, falling into the powder residue box below.
[0027] Compared with the prior art, the advantages of the present invention are as follows:
[0028] 1. This invention sets up a powder receiving cylinder assembly, a fixing assembly, and a pressing cylinder assembly that cooperate with each other. The powder receiving cylinder assembly, which is locked onto the fixing assembly, moves by a screw assembly. The powder receiving cylinder assembly moves along the connecting rod fixing shaft track to the bottom of the pressing cylinder assembly and engages with it. At this time, the pressing cylinder assembly and the powder receiving cylinder assembly are coaxial and concentric in the vertical direction. The powder receiving cylinder assembly and the pressing cylinder assembly cooperate with each other to compress and obtain a cylindrical powder cake with a flat surface and uniform density.
[0029] 2. This invention, through the cooperation between the powder receiving cylinder assembly, the fixing assembly, and the second slider, ensures that when the powder receiving cylinder assembly moves away from the powder pressing cylinder assembly along the connecting rod fixing shaft, the first slider and the second slider collide. Since both sliders have inclined surfaces, the two inclined surfaces interact with each other, causing the two sliders to deform and drive the flip cover connected to the first slider to rotate and open, thereby revealing a channel through which the brewed powder cake can be discharged into the powder residue box, ensuring the practicality of the device.
[0030] 3. This invention obtains a cylindrical coffee cake with a smooth surface and uniform density by extruding coffee powder vertically. After water is introduced, it can flow evenly over the entire coffee cake. The flow rate of water is also the same in areas of coffee cake with the same density, so the extraction degree of the entire coffee cake is the same, which can completely extract the coffee factors in the coffee cake, improve the taste of coffee liquid, and ensure the advancement of the device. Attached Figure Description
[0031] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.
[0032] Figure 1 This is a view of the powder receiving positions of each component in an embodiment of the present invention;
[0033] Figure 2 This is a cross-sectional view of the powder receiving positions of each component in an embodiment of the present invention;
[0034] Figure 3 This is a view of the powder pressing positions of each component in an embodiment of the present invention;
[0035] Figure 4 This is a cross-sectional view of the powder pressing positions of each component in an embodiment of the present invention;
[0036] Figure 5 This is a schematic diagram of the opening of the powder receiving cylinder assembly cover in an embodiment of the present invention;
[0037] Figure 6 This is another schematic diagram of opening the flip cover of the powder receiving cylinder assembly in an embodiment of the present invention;
[0038] Figure 7 This is a schematic diagram of the side plate in an embodiment of the present invention;
[0039] Figure 8 This is a schematic diagram of the flip cover of the powder receiving cylinder assembly in an embodiment of the present invention;
[0040] Figure 9 This is another schematic diagram of the closing powder receiving cylinder assembly flip cover in an embodiment of the present invention;
[0041] Figure 10 This is a schematic diagram of the fixing component in an embodiment of the present invention;
[0042] Figure 11 This is a schematic diagram of the powder receiving cylinder assembly in an embodiment of the present invention;
[0043] Figure 12 This is a cross-sectional view of the powder receiving cylinder assembly in an embodiment of the present invention;
[0044] Figure 13 This is another cross-sectional view of the powder receiving cylinder assembly in an embodiment of the present invention;
[0045] Figure 14 This is a schematic diagram of the overall structure of the powder receiving cylinder assembly in an embodiment of the present invention;
[0046] Figure 15 This is a comparison diagram of the powder pressing position and the powder receiving position of the powder receiving cylinder assembly in an embodiment of the present invention;
[0047] Figure 16 This is a schematic diagram of the powder pushing position of the powder receiving cylinder assembly in an embodiment of the present invention;
[0048] Figure 17 This is a schematic diagram of the linkage assembly and motor in an embodiment of the present invention.
[0049] Figure label:
[0050] 1. Coffee cartridge assembly; 11. Coffee cartridge; 12. Coffee liquid chamber; 13. Coffee liquid chamber pipe; 14. Coffee cartridge filter; 15. First slider; 16. Slider spring; 17. Pressure plate; 18. Hinge shaft; 19. Flip cover; 110. Coffee cartridge cover; 111. Buckle; 112. Pressing spring;
[0051] 2. Coffee grinder assembly;
[0052] 3. Powder pressing cylinder assembly; 31. Water pipe;
[0053] 4. Fixing components; 41. Base; 42. Connecting rod; 43. Connecting rod fixing shaft; 44. Base clip;
[0054] 5. Side plate; 51. Second slider; 52. Side plate protrusion;
[0055] 6. Electric motor;
[0056] 7. Connecting rod fixed axis motion track;
[0057] 8. Powder residue box;
[0058] 9. Lead screw assembly;
[0059] 10. Partition;
[0060] 11. Box body. Detailed Implementation
[0061] The invention will now be further described with reference to the accompanying drawings.
[0062] Example 1
[0063] Figure 1-9 This is a schematic diagram of the working process of receiving, pressing and pushing powder in an embodiment of the present invention, including a powder receiving cylinder assembly 1, a grinding assembly 2, a pressing cylinder assembly 3 and a fixing assembly 4.
[0064] One of the moving structures for a coffee machine powder container 11 includes a housing 11:
[0065] The housing 11 is equipped with a bean grinding assembly 2. A powder pressing cylinder assembly 3 is provided on one side of the bean grinding assembly 2. A powder receiving cylinder assembly 1 is provided below the powder pressing cylinder assembly 3. A connecting rod fixed shaft moving track 7 is provided between the powder pressing cylinder assembly 3 and the powder receiving cylinder assembly 1. A fixing assembly 4 is connected to one side of the powder receiving cylinder assembly 1 by a buckle 111. The fixing assembly 4 is connected to a lead screw assembly 9.
[0066] The coffee grinding assembly 2 is used to feed coffee powder into the coffee powder receiving hopper assembly 1;
[0067] The lead screw assembly 9 drives the fixing assembly 4 to move, and at the same time drives the powder receiving cylinder assembly 1 connected to the fixing assembly 4 to move upward along the connecting rod fixing shaft movement track 7, moving to below the tamping cylinder assembly 3 and engaging with the tamping cylinder assembly 3. The tamping cylinder assembly 3 applies downward force, cooperating with the powder receiving cylinder assembly 1 to extrude coffee powder into a uniformly dense powder cake.
[0068] Preferably, a partition 10 is placed inside the housing 11, which divides the housing 11 into two parts. The grinding assembly 2, the pressing cylinder assembly 3, and the receiving cylinder assembly 1 are arranged on one side of the partition 10, and the lead screw assembly 9 is arranged on the other side of the partition 10. The lead screw assembly 9 is connected to a motor 6, and the fixed shaft motion track is fixedly arranged on one side of the partition 10.
[0069] It is worth noting that the overall work of this invention is divided into three stages:
[0070] The first stage is the receiving of coffee powder. The grinding component 2 transfers the coffee powder through the powder channel to the powder container 11 of the receiving container component 1.
[0071] The second stage is tamping. Under the indirect drive of the lead screw assembly 9, the receiving cylinder assembly 1 moves along the connecting rod fixed shaft motion track 7 to the bottom of the tamping cylinder assembly 3 and engages with it. At this time, the receiving cylinder assembly 1 and the tamping cylinder assembly 3 are coaxial and concentric in the vertical direction. The position of the tamping cylinder assembly 3 remains unchanged. During the upward movement of the receiving cylinder assembly 1, part of the structure of the tamping cylinder assembly 3 enters the powder cylinder 11 and applies downward pressure to the coffee powder in the powder cylinder 11. The two work together to tamp the coffee powder in the powder cylinder 11 into a cylindrical powder cake with uniform density.
[0072] The third stage is the pushing of coffee powder. Under the drive of the lead screw assembly 9, the coffee powder receiving cylinder assembly 1 moves straight down along the connecting rod fixed shaft motion track 7 and separates from the tamping cylinder assembly 3. During the downward movement of the coffee powder receiving cylinder assembly 1, the first slider 15 and the second slider 51 collide. Under the interaction of the inclined surfaces of the first slider 15 and the second slider 51, the first slider 15 pops out, causing the connected flip cover 19 to open. After the flip cover 19 is opened, the coffee powder receiving cylinder assembly 1 moves straight up along the connecting rod fixed shaft motion track 7 under the drive of the lead screw assembly 9 until it reaches below the tamping cylinder assembly 3. During this process, part of the structure of the tamping cylinder 11 enters the coffee powder cylinder 11 and applies downward pressure to the coffee powder cake in the coffee powder cylinder 11. However, at this time, the coffee powder cake has no support plate and is squeezed out from the coffee powder filter screen 14 and falls into the powder residue box 8 below.
[0073] Example 2
[0074] Figure 1-2 The powder receiving position view in the embodiment of the present invention includes a powder receiving cylinder assembly 1, a grinding assembly 2, and a powder pressing cylinder assembly 3.
[0075] The housing 11 contains a bean grinding assembly 2, a powder pressing cylinder assembly 3 is located on one side of the bean grinding assembly 2, a powder receiving cylinder assembly 1 is located below the powder pressing cylinder assembly 3, a connecting rod fixed shaft moving track 7 is provided between the powder pressing cylinder assembly 3 and the powder receiving cylinder assembly 1, a fixing assembly 4 is connected to one side of the powder receiving cylinder assembly 1 by a buckle 111, and the fixing assembly 4 is connected to a lead screw assembly 9;
[0076] The coffee grinding assembly 2 is used to feed coffee powder into the coffee powder receiving container assembly 1.
[0077] It is worth noting that the grinding component 2 is an existing structure. There is a powder channel connecting the grinding component 2 and the powder receiving container component 1. After the user puts coffee beans into the grinding component 2, the grinding component 2 grinds the coffee beans into coffee powder and transfers the coffee powder to the powder receiving container component 1 through the powder channel.
[0078] Example 3
[0079] Figure 3-4The following is a view of the powder pressing positions of the components in the embodiments of the present invention, including the powder receiving cylinder assembly 1, the powder pressing cylinder assembly 3, and the fixing assembly 4.
[0080] The lead screw assembly 9 drives the fixed assembly 4 to move, and at the same time drives the powder receiving cylinder assembly 1 connected to the fixed assembly 4 to move upward along the connecting rod fixed shaft movement track 7, moving to below the tamping cylinder assembly 3 and engaging with the tamping cylinder assembly 3. The tamping cylinder assembly 3 applies downward force, cooperating with the powder receiving cylinder assembly 1 to extrude coffee powder into a uniformly dense powder cake.
[0081] Preferably, the powder receiving assembly 1 includes a powder cylinder 11, a coffee liquid cavity 12 is provided below the powder cylinder 11, a coffee liquid cavity pipe 13 is provided on the side wall of the coffee liquid cavity 12, and a powder cylinder filter screen 14 is provided between the powder cylinder 11 and the coffee liquid cavity 12.
[0082] Preferably, the powder pressing cylinder assembly 3 includes a water pipe 31 and a powder pressing cylinder filter screen 14, and the water pipe 31 is connected to an external water source.
[0083] It is worth noting that, driven by the lead screw assembly 9, the coffee receiving cylinder assembly 1 moves upward along the connecting rod fixed shaft motion track 7 until it engages with the tamping cylinder assembly 3. Part of the tamping cylinder assembly 3 enters the coffee cylinder 11, tamping the coffee powder into a cake. At this point, the coffee receiving cylinder assembly 1 contacts and activates a microswitch in the device. Water at a certain temperature is introduced into the tamping cylinder assembly 3 through the water pipe 31. The warm water passes through the filter screen on the tamping cylinder assembly 3, and under the pressure of the water pump, it penetrates the coffee cake and simultaneously passes through the coffee cylinder filter screen 14 on the receiving cylinder 11. The resulting coffee liquid flows into the external coffee cup through the coffee liquid cavity pipe 13.
[0084] It should be added that water pipe 31 needs to be connected to a suitable external water source. The temperature is not required and can be changed according to the specific situation.
[0085] Example 4
[0086] Figure 5-9 The schematic diagram of the powder pushing structure of each component in the embodiment of the present invention includes a powder receiving cylinder assembly 1, a lead screw assembly 9, a powder pressing cylinder assembly 3, and a fixing assembly 4.
[0087] Preferably, the powder receiving cylinder assembly 1 includes a powder cylinder 11, a coffee liquid cavity 12 is provided below the powder cylinder 11, a coffee liquid cavity pipe 13 is provided on the side wall of the coffee liquid cavity 12, and a powder cylinder filter screen 14 is provided between the powder cylinder 11 and the coffee liquid cavity 12.
[0088] Preferably, a first slider 15 is bolted to one side of the powder cylinder 11, a slider spring 16 is provided between the first slider 15 and the powder cylinder 11, a pressure plate 17 is provided below the first slider 15, and an inclined surface is provided on the surface of the first slider 15. A hinge shaft is elastically connected to the other side of the powder cylinder 11, and a flip cover 19 is provided below the pressure plate 17 and the coffee liquid cavity 12. One end of the hinge shaft 18 is fixed inside the flip cover 19.
[0089] Preferably, a powder cylinder cover 110 is connected to the side of the powder cylinder 11, and a buckle 111 is inserted into each side of the powder cylinder cover 110. One end of a pressing spring 112 is fixedly connected to the inner side of the two sets of buckles 111, and the other end of the pressing spring 112 is fixed inside the powder cylinder cover 110.
[0090] Preferably, the fixing component 4 is disposed between the powder receiving cylinder assembly 1 and the partition plate 10. The fixing component 4 includes a base 41, and a connecting rod 42 is disposed between the base 41 and the partition plate 10. A connecting rod fixing shaft 43 is disposed on the connecting rod 42 for connecting the base 41 and the moving track 7 of the connecting rod fixing shaft. Two sets of base buckles 44 are disposed on the side of the base 41 away from the partition plate 10. The two sets of buckles 111 are connected to the two sets of base buckles 44. The fixing component 4 and the powder receiving cylinder assembly 1 are separated by pressing the two sets of buckles 111.
[0091] Preferably, a side plate 5 is provided on the other side of the powder receiving cylinder assembly 1, and a second slider 51 is provided on the side plate 5. A second slider 51 spring 16 is provided inside the second slider 51. The second slider 51 is rhomboid in shape and has an inclined surface.
[0092] Preferably, when the powder receiving cylinder assembly 1 moves downward, the first slider 15 collides with the second slider 51. Under the interaction of the inclined surfaces of the first slider 15 and the second slider 51, the first slider 15 pops out. The popped-out first slider 15 impacts the hinge shaft, and the hinge shaft rotates, causing the flip cover 19 to rotate and open.
[0093] Preferably, a side plate protrusion 52 is fixedly connected to one side of the partition 10. The side plate protrusion 52 is located directly below the powder pressing cylinder assembly 3 shown. A powder residue box 8 is provided below the side plate protrusion 52. After the flip cover 19 is rotated open, the powder receiving cylinder assembly 1 and the powder pressing cylinder assembly 3 cooperate to push the powder cake into the powder residue box 8.
[0094] It is worth noting that, driven by the lead screw assembly 9, the powder receiving cylinder assembly 1 moves linearly downward along the connecting rod fixed shaft motion track 7 and separates from the powder pressing cylinder assembly 3. During the downward movement of the powder receiving cylinder assembly 1, the first slider 15 and the second slider 51 collide. Under the interaction of the inclined surfaces of the first slider 15 and the second slider 51, the first slider 15 pops out, causing the connected flip cover 19 to open. At this time, the powder receiving cylinder 11 touches the second micro switch and transmits an electrical signal to the control panel.
[0095] After the flip cover 19 is opened, the coffee powder receiving cylinder assembly 1 moves linearly upward along the connecting rod fixed shaft motion track 7 under the drive of the lead screw assembly 9 to the bottom of the tamping cylinder assembly 3. During this process, part of the tamping cylinder 11 enters the coffee powder cylinder 11 and applies downward pressure to the coffee powder cake in the coffee powder cylinder 11. However, at this time, the coffee powder cake does not have a support plate, and the coffee powder cake is squeezed out from the coffee powder filter screen 14 and falls into the powder residue box 8 below.
[0096] Example 5
[0097] Figure 1-17 A fully automatic coffee machine with a coffee powder container 11 motion structure is provided.
[0098] The fully automatic coffee machine includes a coffee powder container 11 moving structure, which includes a housing 11.
[0099] The housing 11 is equipped with a bean grinding assembly 2. A powder pressing cylinder assembly 3 is provided on one side of the bean grinding assembly 2. A powder receiving cylinder assembly 1 is provided below the powder pressing cylinder assembly 3. A connecting rod fixed shaft moving track 7 is provided between the powder pressing cylinder assembly 3 and the powder receiving cylinder assembly 1. A fixing assembly 4 is connected to one side of the powder receiving cylinder assembly 1 by a buckle 111. The fixing assembly 4 is connected to a lead screw assembly 9.
[0100] The coffee grinding assembly 2 is used to feed coffee powder into the coffee powder receiving hopper assembly 1;
[0101] The lead screw assembly 9 drives the fixing assembly 4 to move, and at the same time drives the powder receiving cylinder assembly 1 connected to the fixing assembly 4 to move upward along the connecting rod fixing shaft movement track 7, moving to below the tamping cylinder assembly 3 and engaging with the tamping cylinder assembly 3. The tamping cylinder assembly 3 applies downward force, cooperating with the powder receiving cylinder assembly 1 to extrude coffee powder into a uniformly dense powder cake.
[0102] Preferably, a partition 10 is placed inside the housing 11, which divides the housing 11 into two parts. The grinding assembly 2, the pressing cylinder assembly 3, and the receiving cylinder assembly 1 are arranged on one side of the partition 10, and the lead screw assembly 9 is arranged on the other side of the partition 10. The lead screw assembly 9 is connected to a motor 6, and the fixed shaft motion track is fixedly arranged on one side of the partition 10.
[0103] Preferably, the powder receiving assembly 1 includes a powder cylinder 11, a coffee liquid cavity 12 is provided below the powder cylinder 11, a coffee liquid cavity pipe 13 is provided on the side wall of the coffee liquid cavity 12, and a powder cylinder filter screen 14 is provided between the powder cylinder 11 and the coffee liquid cavity 12.
[0104] Preferably, a first slider 15 is bolted to one side of the powder cylinder 11, a slider spring 16 is provided between the first slider 15 and the powder cylinder 11, a pressure plate 17 is provided below the first slider 15, and an inclined surface is provided on the surface of the first slider 15. A hinge shaft is elastically connected to the other side of the powder cylinder 11, and a flip cover 19 is provided below the pressure plate 17 and the coffee liquid cavity 12. One end of the hinge shaft 18 is fixed inside the flip cover 19.
[0105] Preferably, a powder cylinder cover 110 is connected to the side of the powder cylinder 11, and a buckle 111 is inserted into each side of the powder cylinder cover 110. One end of a pressing spring 112 is fixedly connected to the inner side of the two sets of buckles 111, and the other end of the pressing spring 112 is fixed inside the powder cylinder cover 110.
[0106] Preferably, the fixing component 4 is disposed between the powder receiving cylinder assembly 1 and the partition plate 10. The fixing component 4 includes a base 41, and a connecting rod 42 is disposed between the base 41 and the partition plate 10. A connecting rod fixing shaft 43 is disposed on the connecting rod 42 for connecting the base 41 and the moving track 7 of the connecting rod fixing shaft. Two sets of base buckles 44 are disposed on the side of the base 41 away from the partition plate 10. The two sets of buckles 111 are connected to the two sets of base buckles 44. The fixing component 4 and the powder receiving cylinder assembly 1 are separated by pressing the two sets of buckles 111.
[0107] Preferably, the powder pressing cylinder assembly 3 includes a water pipe 31 and a powder pressing cylinder filter screen 14, and the water pipe 31 is connected to an external water source.
[0108] Preferably, a side plate 5 is provided on the other side of the powder receiving cylinder assembly 1, and a second slider 51 is provided on the side plate 5. A second slider 51 spring 16 is provided inside the second slider 51. The second slider 51 is rhomboid in shape and has an inclined surface.
[0109] Preferably, when the powder receiving cylinder assembly 1 moves downward, the first slider 15 collides with the second slider 51. Under the interaction of the inclined surfaces of the first slider 15 and the second slider 51, the first slider 15 pops out. The popped-out first slider 15 impacts the hinge shaft, and the hinge shaft rotates, causing the flip cover 19 to rotate and open.
[0110] Preferably, a side plate protrusion 52 is fixedly connected to one side of the partition 10. The side plate protrusion 52 is located directly below the powder pressing cylinder assembly 3 shown. A powder residue box 8 is provided below the side plate protrusion 52. After the flip cover 19 is rotated open, the powder receiving cylinder assembly 1 and the powder pressing cylinder assembly 3 cooperate to push the powder cake into the powder residue box 8.
[0111] The operation of a fully automatic coffee machine consists of three stages:
[0112] The first stage is receiving the coffee powder. The operator puts the coffee beans into the grinding component 2, and the grinding component 2 grinds the coffee beans into coffee powder, which is then transferred to the powder container 11 of the powder receiving component 1 through the powder channel.
[0113] The second stage is tamping. Under the indirect drive of the lead screw assembly 9, the receiving cylinder assembly 1 moves along the connecting rod fixed shaft motion track 7 to the bottom of the tamping cylinder assembly 3 and engages with it. At this time, the receiving cylinder assembly 1 and the tamping cylinder assembly 3 are coaxial and concentric in the vertical direction. The position of the tamping cylinder assembly 3 remains unchanged. During the upward movement of the receiving cylinder assembly 1, part of the structure of the tamping cylinder assembly 3 enters the powder cylinder 11 and applies downward pressure to the coffee powder in the powder cylinder 11. The two work together to tamp the coffee powder in the powder cylinder 11 into a cylindrical powder cake with uniform density.
[0114] The third stage is the pushing of coffee powder. Under the drive of the lead screw assembly 9, the coffee powder receiving cylinder assembly 1 moves straight down along the connecting rod fixed shaft motion track 7 and separates from the tamping cylinder assembly 3. During the downward movement of the coffee powder receiving cylinder assembly 1, the first slider 15 and the second slider 51 collide. Under the interaction of the inclined surfaces of the first slider 15 and the second slider 51, the first slider 15 pops out, causing the connected flip cover 19 to open. After the flip cover 19 is opened, the coffee powder receiving cylinder assembly 1 moves straight up along the connecting rod fixed shaft motion track 7 under the drive of the lead screw assembly 9 until it reaches below the tamping cylinder assembly 3. During this process, part of the structure of the tamping cylinder 11 enters the coffee powder cylinder 11 and applies downward pressure to the coffee powder cake in the coffee powder cylinder 11. However, at this time, the coffee powder cake has no support plate and is squeezed out from the coffee powder filter screen 14 and falls into the powder residue box 8 below.
[0115] It is worth noting that the powder receiving hopper assembly 1, the lead screw assembly 9, the powder tamping hopper assembly 3, and the fixing assembly 4 are all electrically connected to the control panel of the fully automatic coffee machine.
[0116] The fully automatic coffee machine is equipped with several micro switches. Specifically, when the powder container assembly 1 moves and contacts the micro switch, it transmits an electrical signal to the coffee machine's control unit. The control unit then controls each component based on the transmitted electrical signal.
[0117] The first microswitch is set when the coffee powder receiving cylinder assembly 1 and the tamping cylinder assembly 3 are engaged to tamp the coffee powder into a cake. When the coffee powder receiving cylinder assembly 1 touches the first microswitch for the first time, the first microswitch transmits an electrical signal to the control panel of the fully automatic coffee machine, and the control panel transmits the electrical signal to each component.
[0118] The second micro switch is set when the powder is pushed down. The powder receiving cylinder assembly 1 moves downward until the first slider 15 and the second slider 51 collide, causing the flip cover 19 to open. At this time, the powder receiving cylinder assembly 1 touches the second micro switch for the first time.
[0119] After the flip cover 19 is opened, the powder cartridge assembly 1 moves upward until it touches the first micro switch for the second time. Then, the powder cartridge assembly 1 starts to move downward until it touches the second micro switch for the second time, thus completing the return of the powder cartridge assembly 1 to its original position.
[0120] It is worth noting that during the process of the powder receiving cylinder assembly 1 touching the second micro switch for the second time, the flip cover 19 touches the side plate protrusion 52, and the flip cover 19 returns to its original position under the pressure of the side plate protrusion 52.
[0121] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A coffee machine powder container moving structure, comprising a housing, characterized in that: The chamber is equipped with a bean grinding assembly, a powder pressing cylinder assembly is provided on one side of the bean grinding assembly, a powder receiving cylinder assembly is provided below the powder pressing cylinder assembly, a connecting rod fixed shaft moving track is provided between the powder pressing cylinder assembly and the powder receiving cylinder assembly, a fixing assembly is snapped to one side of the powder receiving cylinder assembly, and a lead screw assembly is connected to the fixing assembly. The coffee grinding assembly is used to feed coffee powder into the coffee powder receiving cylinder assembly; The lead screw assembly drives the fixed assembly to move, and at the same time drives the powder receiving cylinder assembly connected to the fixed assembly to move upward along the connecting rod fixed shaft movement track. The powder receiving cylinder assembly moves to below the powder pressing cylinder assembly and engages with the powder pressing cylinder assembly. The powder pressing cylinder assembly applies downward force and cooperates with the powder receiving cylinder assembly to extrude coffee powder into a uniformly dense powder cake. The powder receiving assembly includes a powder cylinder, a coffee liquid cavity is provided below the powder cylinder, a first slider is bolted to one side of the powder cylinder, a slider spring is provided between the first slider and the powder cylinder, a pressure plate is provided below the first slider, an inclined surface is provided on the surface of the first slider, a hinge shaft is elastically connected to the other side of the powder cylinder, a flip cover is provided below the pressure plate and the coffee liquid cavity, and one end of the hinge shaft is fixed inside the flip cover; A side plate is provided on the other side of the powder receiving cylinder assembly, and a second slider is provided on the side plate. A second slider spring is provided inside the second slider. The second slider is rhomboid in shape and has an inclined surface on its surface. When the powder receiving cylinder assembly moves downward, the first slider and the second slider collide. Under the interaction of the inclined surfaces of the first slider and the second slider, the first slider pops out. The popped-out first slider hits the hinge shaft, and the hinge shaft rotates, causing the flip cover to rotate and open.
2. The coffee machine powder receiving hopper moving structure according to claim 1, characterized in that, The box body is equipped with a partition that divides the box body into two parts. The grinding assembly, the pressing cylinder assembly, and the receiving cylinder assembly are located on one side of the partition, and the lead screw assembly is located on the other side of the partition. The lead screw assembly is connected to a motor, and the fixed shaft motion track is fixedly located on one side of the partition.
3. The coffee machine powder receiving hopper moving structure according to claim 2, characterized in that, The side wall of the coffee liquid container is provided with a coffee liquid container pipe, and a powder container filter screen is provided between the powder container and the coffee liquid container.
4. The coffee machine powder receiving hopper moving structure according to claim 3, characterized in that, The powder cylinder is connected to a powder cylinder cover on its side. Each side of the powder cylinder cover is fitted with a buckle. One end of a pressing spring is fixedly connected to the inside of each of the two sets of buckles. The other end of the pressing spring is fixed to the inner surface of the powder cylinder cover.
5. The coffee machine powder receiving hopper moving structure according to claim 3, characterized in that, The fixing component is disposed between the powder receiving cylinder assembly and the partition. The fixing component includes a base, and a connecting rod is disposed between the base and the partition. A connecting rod fixing shaft is disposed on the connecting rod for connecting the base and the moving track of the connecting rod fixing shaft. Two sets of base buckles are disposed on the side of the base away from the partition. The two sets of buckles are connected to each other. The fixing component and the powder receiving cylinder assembly are separated by pressing the two sets of buckles.
6. The coffee machine powder receiving hopper moving structure according to claim 1, characterized in that, The powder pressing cylinder assembly includes a water pipe and a powder pressing cylinder filter screen, and the water pipe is connected to an external water source.
7. The coffee machine powder receiving hopper moving structure according to claim 2, characterized in that, A side plate protrusion is fixedly connected to one side of the partition. The side plate protrusion is located directly below the powder pressing cylinder assembly shown. A powder residue box is located below the side plate protrusion. After the flip cover is rotated open, the powder receiving cylinder assembly moves upward. During the upward movement, the powder receiving cylinder assembly and the powder pressing cylinder assembly cooperate to push the powder cake into the powder residue box.
Citation Information
Patent Citations
Brewing unit and brewing method of coffee machine
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