An automatic coffee machine

Abstract

The application relates to the field of coffee machines, in particular to a full-automatic coffee machine which comprises a wallboard, the front end of the wallboard is provided with a brewing device, the bottom of the brewing device is fixedly connected with a cylinder one, the output end of the cylinder one is fixedly connected with a filter piston through the brewing device, a material pushing assembly is installed on the outer side of the brewing device, a powder residue tank is arranged on the right side of the brewing device, a fixing frame is fixedly connected to the left side of the front end of the wallboard, a cylinder two is fixedly connected in the fixing frame, a pressing piston is fixedly connected to the output end of the cylinder two, a slot is arranged in the wallboard, a water pump is fixedly connected to the rear end of the wallboard, hot water pipes are fixedly connected to the two sides of the water pump, a supporting seat is fixedly connected to the right side of the front end of the wallboard, and a sliding groove is arranged in the top of the supporting seat. The powder residue can be automatically cleaned through the material pushing assembly, manual contact with the powder residue is not needed, cleaning is not complicated, the powder residue can be prevented from scattering and polluting the equipment, and the equipment is kept clean.

Description

Technical Field

[0001] This invention relates to the field of coffee machine technology, specifically to a fully automatic coffee machine. Background Technology

[0002] Coffee is a beverage made by grinding coffee beans into powder and then brewing it. With the improvement of living standards, coffee machines have been widely used in homes, offices, restaurants, and other settings.

[0003] Currently, conventional coffee making requires manual operation of multiple steps such as grinding beans, adding coffee grounds, and cleaning up residue. The process is fragmented, inefficient, and provides a poor experience. Furthermore, cleaning up coffee grounds is tedious, and some equipment requires manual assistance. The level of automation is insufficient, and coffee grounds are easily scattered during the feeding process, making cleaning difficult. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a fully automatic coffee machine that solves the problems of fragmented coffee-making processes, low efficiency, poor experience, and cumbersome coffee grounds cleaning.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A fully automatic coffee machine includes a wall panel, a brewer is provided at the front end of the wall panel, a cylinder is fixedly connected to the bottom of the brewer, a filter piston is fixedly connected to the output end of the cylinder through the brewer, a feeding assembly is installed on the upper outer side of the brewer, a powder and residue box is provided on the right side of the brewer, a fixing frame is fixedly connected to the left front end of the wall panel, a cylinder is fixedly connected inside the fixing frame, a pressing piston is fixedly connected to the output end of the cylinder, a slot is provided through the wall panel, a water pump is fixedly connected to the rear end of the wall panel, hot water pipes are fixedly connected to both sides of the water pump, a support base is fixedly connected to the right front end of the wall panel, a sliding groove is provided on the top of the support base, a coffee grinder is provided on the top of the support base, a powder outlet is fixedly connected to the outer side of the coffee grinder, a powder guide plate is provided below the powder outlet, a mounting base is fixedly connected to the front end of the wall panel, and support pillars are fixedly connected to the four corners of the bottom of the brewer, with the support pillars located outside the cylinder.

[0006] Preferably, the feeding assembly includes a top plate, which is fixedly connected to the outside of the brewer, and the top of the brewer is flush with the top of the top plate. A connecting frame is fixedly connected to the left side of the top plate, and an electric push rod is fixedly connected to the top of the connecting frame. A feeding plate is fixedly connected to the output end of the electric push rod. Baffles are fixedly connected to both sides of the top of the top plate, and the baffles are located on both sides of the feeding plate. A guide plate is fixedly connected to the right side of the top plate, and the guide plate is located above the powder and slag box.

[0007] Preferably, the bottom of the brewer is connected to a liquid outlet pipe that extends through and is fixedly connected thereto, and a control valve is installed on the outside of the liquid outlet pipe.

[0008] Preferably, the hot water pipe at the front end passes through the slot, and the end end passes through and is fixedly connected to the downward piston.

[0009] Preferably, the powder guide plate is fixedly connected to the coffee grinder, and the powder guide plate is located on the outer side above the brewer.

[0010] Preferably, the bottom of the coffee grinder is fixedly connected to a slider, and the slider is disposed in a groove.

[0011] Preferably, an electric push rod two is fixedly connected to the inner side of the mounting base, and the output end of the electric push rod two is fixedly connected to the coffee grinder.

[0012] Preferably, a controller is fixedly connected to the front end of the wall panel, and the controller is located on the right side of the support base.

[0013] Working principle: During operation, the electric push rod 2 can push the coffee grinder, which moves horizontally along the slide groove of the support base via the bottom slider, adjusting the position of the powder outlet and the powder guide plate to ensure that the coffee powder is accurately guided into the brewer and avoids spillage. When the end of the powder guide plate moves above the brewer, the coffee grinder is started by the controller to grind the coffee. The ground coffee powder is discharged through the powder outlet and falls into the powder guide plate that is fixedly connected to it, and finally delivered to the brewer.

[0014] After the coffee powder is fed into the brewer, the electric push rod two drives the coffee grinder and the powder guide plate to reset. At the same time, cylinder two starts, pushing the lower piston downward to evenly pressurize the coffee powder in the brewer. Simultaneously, the water pump at the rear of the wall panel starts, delivering hot water through the hot water pipes on both sides. The front hot water pipe passes through the slot in the wall panel, and the end passes through and connects to the lower piston. The hot water is injected into the brewer through the lower piston, where it is fully mixed and extracted with the pressurized coffee powder. At the same time, the coffee liquid flows out through the filter piston. After extraction, the control valve on the liquid outlet pipe at the bottom of the brewer is opened, and the finished coffee flows out through the liquid outlet pipe, completing the brewing process.

[0015] After brewing, cylinder two drives the lower piston to reset and rise. At the same time, cylinder one at the bottom of the brewer is activated, pushing the filter piston at its output end upward to push the coffee grounds in the brewer to the brewer opening (the top plate is fixed to the outside of the brewer and the top is flush with it). Then the feeding assembly is activated, and the electric push rod one on the connecting frame pushes the feeding plate. Under the limiting action of the baffles on both sides of the top plate, the coffee grounds are smoothly pushed to the guide plate on the right side of the top plate. The coffee grounds slide down the guide plate into the coffee grounds box below, completing the automatic cleaning of the coffee grounds.

[0016] This invention provides a fully automatic coffee machine. It has the following beneficial effects: This invention relates to a coffee grinder that features a flexible movement via an electric push rod, slider, and chute, allowing for precise adjustment of the coffee powder dispensing position. A guide plate precisely guides the powder, preventing spillage and waste while ensuring even distribution to the brewer. The feed assembly automatically cleans up coffee grounds, eliminating the need for manual contact and reducing cleaning hassles. It also prevents grounds from contaminating the equipment, keeping it clean. A controller links all components, automating the entire process from grinding and feeding to pressurizing, brewing, and grounds cleaning. No manual assistance is required; simply issuing a command completes the coffee preparation. Suitable for home, office, and other scenarios, this invention significantly enhances ease of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the brewing device of the present invention; Figure 3 This is a side perspective view of the present invention.

[0018] The components are as follows: 1. Wall panel; 2. Brewer; 3. Cylinder 1; 4. Filter piston; 5. Liquid outlet pipe; 6. Control valve; 7. Top plate; 8. Baffle; 9. Connecting frame; 10. Electric push rod 1; 11. Push plate; 12. Guide plate; 13. Powder and residue box; 14. Cylinder 2; 15. Downward piston; 16. Hot water pipe; 17. Slot; 18. Fixing frame; 19. Support base; 20. Slide; 21. Coffee grinder; 22. Powder outlet; 23. Powder guide plate; 24. Slider; 25. Mounting base; 26. Electric push rod 2; 27. Controller; 28. Water pump; 29. ​​Support column. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0020] like Figure 1-3As shown, this embodiment of the invention provides a fully automatic coffee machine, including a wall panel 1. A brewer 2 is disposed at the front end of the wall panel 1. A cylinder 3 is fixedly connected to the bottom of the brewer 2. A filter piston 4 is fixedly connected to the output end of the cylinder 3 through the brewer 2. A feeding assembly is installed on the upper outer side of the brewer 2. A powder / ground box 13 is disposed on the right side of the brewer 2. A fixing frame 18 is fixedly connected to the left side of the front end of the wall panel 1. A cylinder 14 is fixedly connected inside the fixing frame 18. A pressing piston 15 is fixedly connected to the output end of the cylinder 14. A through-hole opening is provided inside the wall panel 1. The wall panel 1 has a groove 17. A water pump 28 is fixedly connected to the rear end of the wall panel 1. Hot water pipes 16 are fixedly connected to both sides of the water pump 28. A support base 19 is fixedly connected to the front right side of the wall panel 1. A sliding groove 20 is opened on the top of the support base 19. A coffee grinder 21 is installed on the top of the support base 19. A powder outlet 22 is fixedly connected to the outside of the coffee grinder 21. A powder guide plate 23 is installed below the powder outlet 22. A mounting base 25 is fixedly connected to the front end of the wall panel 1. A support column 29 is fixedly connected to the four corners of the bottom of the brewer 2. The support column 29 is located outside the cylinder 3.

[0021] Specifically, wall panel 1 is die-cast from 304 stainless steel with a thickness of 3mm-5mm, possessing excellent rust resistance and structural strength, capable of withstanding vibrations generated during the operation of the internal cylinder. A cylindrical brewing vessel 2 (typically with an inner diameter of 50mm-60mm and a volume of approximately 150ml) is located slightly below the left front end of wall panel 1. Each of the four corners of the brewing vessel 2 is fixedly connected to a 100mm high support column 29 using stainless steel bolts. A cylinder 3 (a thin-type SDA20-50 cylinder with a stroke of 50mm) is fixedly connected to the bottom of the brewing vessel 2. The output end of cylinder 3 extends through the bottom of the brewing vessel 2 and is fixedly connected to a filter piston 4. The surface of the filter piston 4 is equipped with multiple layers of stainless steel filter screens (the outermost layer has a filtration precision of 80-100 mesh, i.e., a pore size of 0.15mm-0.18mm, ensuring that the extracted coffee liquid is smooth and free of residue), and the outer ring of the piston is equipped with a food-grade silicone O-ring to ensure that the internal pressure during brewing is not less than 9 Bar (the standard pressure for espresso).

[0022] An L-shaped support base 19 is welded to the front right side of wall panel 1. A horizontal groove 20 is formed on the top of the support base 19. A slider 24 slides within the groove 20, and a coffee grinder 21 (with a built-in high-carbon steel conical burr, speed 400-600 rpm, and adjustable coarseness) is fixedly mounted on top of the slider 24. A powder outlet 22 is fixedly connected to the outside of the coffee grinder 21, facing the brewer. A powder guide plate 23 is integrally formed below the powder outlet 22. The powder guide plate 23 has a "V" shaped cross-section and a Teflon non-stick coating to prevent static electricity from attracting coffee powder.

[0023] An inverted L-shaped bracket 18 is fixedly connected to the upper left front of wall panel 1 by screws. A cylinder 14 (e.g., model MAL32-100, providing greater downward pressure) is vertically fixed inside the bracket 18. A disc-shaped downward piston 15 is fixedly connected to the output end of cylinder 14. The diameter of the downward piston 15 is fitted with the inner diameter of the brewer 2 (the clearance is controlled within 0.1mm). Its bottom is a flat powder-pressing surface with a built-in shower-style water distribution mesh (evenly distributed with dozens of micro-holes, approximately 0.8mm in diameter). A vertical slot 17 is cut through the wall panel 1. A water pump 28 (preferably a ULKA electromagnetic water pump, with a maximum output pressure of 15 Bar and a flow rate of approximately 650cc / min) is fixedly installed at the rear end of wall panel 1. High-temperature and high-pressure resistant Teflon hot water pipes 16 are fixedly connected to both sides of the water pump 28. The rear hot water pipe 16 is connected to an external hot water tank.

[0024] The feeding assembly includes a top plate 7, which is fixedly connected to the outside of the brewer 2, and the top of the brewer 2 is flush with the top of the top plate 7. A connecting frame 9 is fixedly connected to the left side of the top plate 7, and an electric push rod 10 is fixedly connected to the top of the connecting frame 9. A feeding plate 11 is fixedly connected to the output end of the electric push rod 10. Baffles 8 are fixedly connected to both sides of the top of the top plate 7, and the baffles 8 are located on both sides of the feeding plate 11. A guide plate 12 is fixedly connected to the right side of the top plate 7, and the guide plate 12 is located above the powder and slag box 13.

[0025] Specifically, the feeding assembly includes a top plate 7 horizontally fixed to the outside of the brewer 2, with the top edge of the brewer 2 completely flush with the surface of the top plate 7, forming a seamless sliding platform. A connecting frame 9 is fixedly connected to the left side of the top plate 7, and an electric push rod 10 is horizontally fixedly connected to the top of the connecting frame 9. A scraper-shaped feeding plate 11 (made of wear-resistant POM polyoxymethylene) is connected to the output end of the electric push rod 10, and the lower edge of the feeding plate 11 is tightly fitted to the top plate 7. Baffles 8 are vertically fixedly connected to both sides of the top of the top plate 7, and the distance between the two baffles 8 is the same as the width of the feeding plate 11. A guide plate 12 is fixedly fixedly connected diagonally downward to the right side of the top plate 7, and a large-capacity powder and residue box 13 (capacity of about 1.5L, which can hold 20-30 powder and residue cakes) is correspondingly set on the right side of the brewer 2.

[0026] The bottom of the brewer 2 is connected to a liquid outlet pipe 5, and a control valve 6 is installed on the outside of the liquid outlet pipe 5.

[0027] Specifically, the bottom of the brewer 2 is also connected to a liquid outlet pipe 5, and an electromagnetic control valve 6 (24V DC food-grade electromagnetic valve) is installed on the outside of the liquid outlet pipe 5 to precisely control the timing of the coffee liquid flow.

[0028] The front hot water pipe 16 passes through the slot 17, and its end extends through and is fixedly connected to the downward piston 15.

[0029] Specifically, the hot water pipe 16 at the front end passes through the slot 17, and its end moves with the rise and fall of the lower piston 15, and passes through and connects to the water distribution mesh chamber inside the lower piston 15, so as to facilitate the injection of hot water into the brewer 2.

[0030] The powder guide plate 23 is fixedly connected to the coffee grinder 21, and the powder guide plate 23 is located on the outer side above the brewer 2.

[0031] Specifically, when the electric push rod 26 extends, the end of the powder guide plate 23 is positioned directly above the brewer 2, achieving a precise zero-distance connection between grinding beans and discharging powder.

[0032] A slider 24 is fixedly connected to the bottom of the coffee grinder 21, and the slider 24 is set in the slide groove 20.

[0033] Specifically, the slider 24 can guide and limit the coffee grinder 21.

[0034] An electric push rod 26 is fixedly connected to the inside of the mounting base 25, and the output end of the electric push rod 26 is fixedly connected to the coffee grinder 21.

[0035] Specifically, to achieve automatic displacement of the coffee grinder, a mounting base 25 is fixedly connected to the front end of the wall panel 1, and an electric push rod 26 (a miniature linear motor with a thrust of approximately 200N and a stroke of 150mm) is horizontally fixedly connected to the inner side of the mounting base 25. The output end of the electric push rod 26 is fixedly connected to the outer casing of the coffee grinder 21.

[0036] A controller 27 is fixedly connected to the front end of the wall panel 1, and the controller 27 is located on the right side of the support base 19.

[0037] Specifically, a core controller 27 (preferably a PLC control board with a built-in STM32 microprocessor) is installed at the front end of the wall panel 1. The controller 27 is electrically connected to the solenoid valves on cylinder 1 3 and cylinder 2 14, the water pump 28, the control valve 6, the electric push rod 1 10, the electric push rod 2 26, and the coffee grinder 21 to achieve millisecond-level timing control of the entire process.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic coffee machine, comprising a wall panel (1), characterized in that: A brewing device (2) is provided at the front end of the wall panel (1). A cylinder (3) is fixedly connected to the bottom of the brewing device (2). A filter piston (4) is fixedly connected through the output end of the cylinder (3) through the brewing device (2). A pusher assembly is installed on the upper outer side of the brewing device (2). A powder and slag box (13) is provided on the right side of the brewing device (2). A fixing frame (18) is fixedly connected to the left side of the front end of the wall panel (1). A cylinder (14) is fixedly connected inside the fixing frame (18). A pressing piston (15) is fixedly connected to the output end of the cylinder (14). A slot (17) is provided through the wall panel (1). The rear end of the wall panel (1) is fixedly connected to the cylinder. A water pump (28) is fixedly connected to the wall panel (1), and hot water pipes (16) are fixedly connected to both sides of the water pump (28). A support base (19) is fixedly connected to the right side of the front end of the wall panel (1). A sliding groove (20) is opened on the top of the support base (19). A coffee grinder (21) is set on the top of the support base (19). A powder outlet (22) is fixedly connected to the outside of the coffee grinder (21). A powder guide plate (23) is set below the powder outlet (22). An installation base (25) is fixedly connected to the front end of the wall panel (1). A support column (29) is fixedly connected to the four corners of the bottom of the brewer (2), and the support column (29) is set outside the cylinder (3).

2. The fully automatic coffee machine according to claim 1, characterized in that: The feeding assembly includes a top plate (7), which is fixedly connected to the outside of the brewer (2), and the top of the brewer (2) is flush with the top of the top plate (7). A connecting frame (9) is fixedly connected to the left side of the top plate (7), and an electric push rod (10) is fixedly connected to the top of the connecting frame (9). A feeding plate (11) is fixedly connected to the output end of the electric push rod (10). Baffles (8) are fixedly connected to both sides of the top of the top plate (7), and the baffles (8) are located on both sides of the feeding plate (11). A guide plate (12) is fixedly connected to the right side of the top plate (7), and the guide plate (12) is located above the powder and slag box (13).

3. The fully automatic coffee machine according to claim 1, characterized in that: The bottom of the brewer (2) is connected to a liquid outlet pipe (5), and a control valve (6) is installed on the outside of the liquid outlet pipe (5).

4. A fully automatic coffee machine according to claim 1, characterized in that: The hot water pipe (16) at the front end passes through the slot (17), and its end extends through and is fixedly connected to the downward piston (15).

5. A fully automatic coffee machine according to claim 1, characterized in that: The powder guide plate (23) is fixedly connected to the coffee grinder (21), and the powder guide plate (23) is located on the outer side above the brewer (2).

6. A fully automatic coffee machine according to claim 1, characterized in that: The bottom of the coffee grinder (21) is fixedly connected to a slider (24), and the slider (24) is set in the groove (20).

7. A fully automatic coffee machine according to claim 1, characterized in that: The inner side of the mounting base (25) is fixedly connected to an electric push rod two (26), and the output end of the electric push rod two (26) is fixedly connected to the coffee grinder (21).

8. A fully automatic coffee machine according to claim 1, characterized in that: The front end of the wall panel (1) is fixedly connected to a controller (27), and the controller (27) is located on the right side of the support base (19).

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