Coffee bean grinding device and grinding method thereof

Abstract

The invention relates to the technical field of coffee grinding, in particular to a coffee bean grinding device and a grinding method.The coffee bean grinding device comprises a coffee machine body, a second motor is arranged in the coffee machine body, a grinding rod for grinding coffee beans is fixed to the output end of the second motor, and a grinding disc matched with the grinding rod is arranged outside the grinding rod; a protective cylinder is arranged in the side cover, a cutting device for cutting coffee beans is arranged in the protective cylinder, and a first motor for driving the cutting device to move is further arranged on the top of the coffee machine body. Through cooperation of the first motor, the cutting device, the transmission shaft, the storage bowl, the cutting bowl, the transmission mechanism and other structures, crushed coffee beans are subjected to subsequent grinding, the grinding time of the coffee beans is shortened, the working time of the grinding disc and the grinding rod can be shortened, the temperature of the grinding disc and the grinding rod is kept at the normal temperature, and therefore the fragrance of coffee is improved, and the coffee quality is improved. Oxidation of grease in the coffee beans is weakened, and the taste of the coffee during eating is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee grinding, and in particular to a coffee bean grinding device and a grinding method thereof. Background Art

[0002] Coffee machines, which are used to brew coffee quickly, are now a household device in many families. There are semi-automatic coffee machines, which rely on manual operations to grind, press, load, brew, and manually remove residues; there are also fully automatic coffee machines. People have applied electronic technology to coffee machines to achieve automatic control of the entire coffee brewing process, including preheating, cleaning, grinding, pressing, brewing, and draining, creating fully automatic coffee machines.

[0003] Although the existing coffee bean grinding device can transfer the heat on the grinding disk to the fins, diffuse it through the fins and discharge it outward through the heat dissipation holes, it takes a long grinding time to grind the whole coffee beans, which will also increase the temperature of the grinding disk and reduce the aroma of the coffee. The high temperature will accelerate the oxidation of the oil in the coffee beans and reduce the taste of the coffee when consumed. Therefore, we propose a coffee bean grinding device and a grinding method thereof. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a coffee bean grinding device and a grinding method thereof.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A coffee bean grinding device, comprising:

[0007] The coffee machine body has a feeding bin fixed on the top of both sides of the coffee machine body for people to put coffee beans, two openable and closable side covers are arranged on both sides of the coffee machine body, and a second motor is arranged inside the coffee machine body, a grinding rod for grinding coffee beans is fixed on the output end of the second motor, and a grinding disc matched with the grinding rod is arranged outside the grinding rod;

[0008] A protective cylinder is disposed inside the side cover, a cutting device for cutting coffee beans is disposed inside the protective cylinder, and a first motor for driving the cutting device to move is also disposed on the top of the coffee machine body;

[0009] The cutting device includes a transmission shaft, a transmission rod and a cutting bowl. The top of the transmission shaft is fixed to the output shaft of the first motor, the top of the transmission rod is fixed to the top of the inner wall of the coffee machine body, and the bottom of the transmission shaft is provided with a shaking mechanism after passing through the transmission rod. The bottom of the shaking mechanism is provided with a storage bowl for intermittent feeding of coffee beans, the middle part of the storage bowl is recessed inward to form a storage groove, the middle part of the cutting bowl is recessed inward to form a cutting groove, and the bottom of the cutting bowl is provided with a cutting plate for dividing the coffee beans, and the top of the storage groove is provided with a plurality of discharge ports of different sizes. , a plurality of discharge ports are evenly arranged at the top of the storage tank, and are arranged from top to bottom in descending order according to the diameter of the discharge ports; the output shaft of the first motor penetrates the coffee machine body and is fixed to the top of the transmission shaft; a positioning ring is arranged in the middle of the transmission rod; a positioning hole matched with the transmission shaft is arranged in the middle of the positioning ring; a cutting bowl is arranged inside the cutting groove, and a gap is arranged between the bottom of the cutting bowl and the bottom of the cutting groove; the transmission shaft is driven to rotate by the output shaft of the first motor, so that the transmission shaft drives the transmission mechanism to drive the storage bowl to rotate;

[0010] A reversible cutting board is provided at the bottom of the material storage bowl, a plurality of slitting knives for slicing coffee beans are provided on the top of the cutting board, and a plurality of steel cones for splitting the coffee beans are provided at the bottom of the cutting board, two fixing rods are provided at the top of the cutting bowl, opposite ends of the two fixing rods are fixed to the inner wall of the protective tube, and both ends of the cutting bowl are fixed to the two fixing rods, a cross-section is provided at the bottom of the cutting bowl, a through groove matched with the cutting board is provided on the cross-section, a blade of the slitting knife contacts the bottom of the material storage bowl, and the cutting board is rotatably installed in the through groove, the slitting knife and the steel cone are switched by flipping the cutting board, so that the coffee beans inside the material storage bowl fall onto the surface of the cutting board, and the coffee beans are squeezed and cut by the rotating material storage bowl to cut the coffee beans into small pieces.

[0011] As a preferred technical solution of the present invention, the transmission mechanism includes a rotating rod rotatably mounted at the bottom of the transmission rod, two support frames are fixed at both ends of the rotating rod, a gear lever is arranged on the top of the two support frames, a movable pull rod is arranged on the gear lever, the pull rod is movably connected to the bottom of the gear lever, a rocking lever is arranged in the middle of the rotating rod, a retractable extension rod is arranged inside the rocking lever, two pulleys are arranged below the extension rod, a sliding rod is arranged between the two pulleys, and the two ends of the sliding rod are extended to the outside of the two pulleys and then fixed to the top of the storage tank, A mounting ring is fixed in the middle of the rotating rod, the top of the rocking rod is fixed to the mounting ring, the bottom of the rocking rod is provided with a rectangular groove matched with the extension rod, a first spring is provided between the extension rod and the rectangular groove, two rotatable connecting rings are provided in the middle of the two pulleys, the bottom of the extension rod is extended to the outside of the rocking rod and is fixed to one of the connecting rings, a connecting rod is provided between the two pulleys, and a circular groove matched with the sliding rod is provided in the middle of the two pulleys, and the pulleys can move along the outer wall of the sliding rod through the cooperation between the sliding rod and the pulley.

[0012] As a preferred technical solution of the present invention, a base plate is fixed to the bottom of the transmission shaft, a lifting plate is provided on the outer wall of the pull rod, two threaded sleeves are fixed on the side facing each other of the base plate and the lifting plate, a bidirectional threaded rod is screwed between the two threaded sleeves, threaded holes matching the bidirectional threaded rod are provided on the side facing each other of the two threaded sleeves, and symmetrical threads are provided at both ends of the bidirectional threaded rod, and an adjusting button for people to grasp is fixed in the middle of the bidirectional threaded rod, a limiting hole matching the gear rod is provided at the bottom of the pull rod, and the bidirectional threaded rod is driven to rotate by rotating the adjusting button, so that the bidirectional threaded rod is matched with the threaded hole of the threaded sleeve, the spacing between the base plate and the lifting plate is adjusted, and the spacing between the pull rod and the transmission shaft is adjusted.

[0013] As a preferred technical solution of the present invention, an outer ring is fixed to the lower half of the outer wall of the cutting bowl, and two limiting sleeves are symmetrically fixed to the bottom of the outer ring. Two retractable telescopic rods are arranged at the bottom of the two limiting sleeves, and a liftable spacer plate is fixed to the bottom of the two telescopic rods. A socket matched with the grinding rod is arranged in the middle of the spacer plate, and a locking groove matched with the telescopic rod is arranged at the bottom of the limiting sleeve, and a second spring is arranged in the locking groove, and the free end of the second spring is fixed to the top of the telescopic rod.

[0014] As a preferred technical solution of the present invention, an adjusting rod is fixed to the outer wall of the cutting plate, and a movable reversing sleeve is provided after the end of the adjusting rod away from the cutting plate passes through the protective tube, two locking rods are symmetrically fixed to the outer wall of the reversing sleeve, and a clamping plate is also fixed to the outer wall of the protective tube, and a locking groove matched with the locking rod is provided on the clamping plate, a wedge block is provided at the end of the adjusting rod away from the cutting plate, and a wedge groove matched with the wedge block is provided on the inner wall of the reversing sleeve, and prompt words are respectively provided at the ends of the two locking rods away from the reversing sleeve, and the prompt words correspond to the slitting knife and the steel cone.

[0015] As a preferred technical solution of the present invention, a material stop ring is fixed on the top of the grinding disc, and a mounting groove matched with the material spacer disc is arranged in the middle of the material stop ring, and baffles are symmetrically fixed on the upper half of the grinding rod, and two clamping grooves are arranged on the side of the two baffles away from the grinding rod, and a protrusion matched with the clamping groove is arranged in the middle of the material spacer disc, and the protrusion is arranged on the inner wall of the socket, and the material spacer disc is installed in the mounting groove, the height of the clamping groove is greater than the height of the protrusion, the middle of the material spacer disc is recessed downward to form an inclined surface, and a plurality of material discharge grooves are arranged on the material spacer disc.

[0016] As a preferred technical solution of the present invention, two material receiving frames are further provided inside the side cover, and two buckles are provided on the opposite sides of the two material receiving frames, and two arc-shaped dustproof rings are provided on the opposite sides of the two buckles, and the tops of the two dustproof rings extend to the outside of the material receiving frame and contact with the bottom of the grinding rod, the tops of the two buckles are chamfered, and the outer walls of the two material receiving frames are provided with handles for people to take and place, and the chamfers of the buckles facilitate the ground coffee to enter the interior of the material receiving frame.

[0017] A coffee bean grinding method comprising the following steps:

[0018] S1. Open the side cover, push the material storage bowl to move, so that the material storage bowl turns around the axis of the fixed rod, push the cutting board to turn over, and make the slitting knife or steel cone of the cutting board contact with the bottom of the cutting bowl;

[0019] S2, after the coffee beans to be ground are placed in the feeding bin, the coffee beans enter the storage bowl, and the output shaft of the first motor drives the transmission shaft to rotate, so that the transmission shaft drives the storage bowl to rotate through the shaking mechanism, so that the coffee beans enter the cutting bowl through the discharge port of the storage bowl, and fall onto the top of the cutting board, and the coffee beans are cut by the cooperation of the storage bowl and the cutting board to form coffee bean fragments;

[0020] S3, after the cut coffee bean pieces pass through the spacer plate and enter the interior of the baffle ring, the output shaft of the first motor drives the grinding rod to rotate, so that the grinding rod cooperates with the grinding disc to grind the coffee bean pieces into powder, namely, coffee powder;

[0021] S4. After the coffee powder enters the two receiving frames, pull the handle to separate the two receiving frames, and take the two receiving frames out of the side covers to complete the grinding of the coffee beans.

[0022] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0023] 1. Through the cooperation of the first motor, the cutting device, the transmission shaft, the material storage bowl, the cutting bowl and the transmission mechanism, the coffee beans in the material storage bowl enter the cutting bowl through the discharge port and then fall onto the top of the cutting plate, so that the material storage bowl pushes the coffee beans to contact the slitting knife or the steel cone to crush the coffee beans, and the crushed coffee bean fragments are subsequently ground, which can not only make the coffee beans ground more delicately and shorten the grinding time of the coffee beans, but also shorten the working time of the grinding disc and the grinding rod, so that the temperature of the grinding disc and the grinding rod is maintained at normal temperature, thereby improving the aroma of the coffee, reducing the oxidation of the oil in the coffee beans, and improving the taste of the coffee when consumed.

[0024] 2. By rotating the adjusting knob, the adjusting knob drives the bidirectional threaded rod to rotate, so that the bidirectional threaded rod cooperates with the threaded hole of the threaded sleeve, and the threaded sleeve moves along the outer wall of the bidirectional threaded rod, so that the threaded sleeve pushes the lifting plate to move, and the lifting plate drives the pull rod to move, and the distance between the pull rod and the transmission shaft is adjusted to become larger or smaller, so that the movement trajectory of the pull rod becomes larger or smaller, and the angular velocity of the gear lever driven by the pull rod becomes larger or smaller, thereby not only can coffee beans of different sizes in the storage bowl be discharged through different discharge ports, which is convenient for the separation of coffee beans, but also the contact area between the storage bowl and the cutting plate can be increased, and the work efficiency of coffee bean crushing can be further improved.

[0025] 3. Pull the reversing sleeve to drive the locking rod to move, so that the locking rod moves to the outside of the locking groove of the card plate, rotate the locking rod, so that the locking rod drives the adjusting rod to rotate through the wedge block, so that the adjusting rod drives the cutting plate to rotate, and adjust the slitting knife or steel cone on the cutting plate to move to the bottom of the storage bowl, so that coffee beans of different sizes or types can be crushed.

[0026] 4. The inclined surface on the dividing plate can make the coffee bean fragments fall quickly into the inside of the retaining ring, and when the coffee bean fragments on the dividing plate fall onto the dividing plate, the impact force of the falling coffee bean fragments pushes the dividing plate to move downward, so that the dividing plate drives the telescopic rod to move downward, and the telescopic rod drives the second spring to deform. The second spring releases the elastic force, so that the second spring drives the dividing plate to move up and down through the telescopic rod, thereby shaking off the coffee bean fragments on the dividing plate to prevent the coffee bean fragments from accumulating. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0028] Figure 2 This is the second structural schematic diagram of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the protection tube of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the cutting device of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the material storage bowl of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the cutting bowl of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the transmission rod of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the pull rod of the present invention;

[0035] Fig. 9 It is a schematic diagram of the structure of the outer ring of the present invention;

[0036] Fig.10 It is a structural schematic diagram of the limiting sleeve of the present invention;

[0037] Fig.11 It is a structural schematic diagram of the material receiving frame of the present invention;

[0038] Fig.12 It is a structural schematic diagram of the cutting plate of the present invention;

[0039] Fig.13 It is a structural schematic diagram of the rocking arm of the present invention;

[0040] Fig.14 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0041] Among them: 1. coffee machine body; 2. feeding bin; 3. side cover; 4. material blocking ring; 5. protective tube; 6. first motor; 7. cutting device; 8. material receiving frame; 9. second motor; 10. grinding disc; 11. grinding rod; 12. dustproof ring; 13. baffle; 14. buckle; 701. transmission shaft; 702. transmission rod; 703. rotating rod; 704. swing rod; 705. pulley; 706. slide rod; 707. storage bowl; 70 8. Cutting bowl; 709. Fixed rod; 710. Spacer plate; 711. Gear rod; 712. Support frame; 713. Pull rod; 714. Bottom plate; 715. Bidirectional threaded rod; 716. Threaded sleeve; 717. Lifting plate; 718. Outer ring; 719. Limit sleeve; 720. Telescopic rod; 721. Extension rod; 722. Cutting plate; 723. Adjustment rod; 724. Reversing sleeve; 725. Lock rod; 726. Card plate. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0043] Embodiment: The present invention provides as Figure 1 and Figure 3 A coffee bean grinding device and a grinding method thereof are shown, comprising:

[0044] A coffee machine body 1 is provided, and a feeding bin 2 for conveniently feeding coffee beans is fixed on the top of both sides of the coffee machine body 1, and two openable and closable side covers 3 are arranged on both sides of the coffee machine body 1, and a second motor 9 is arranged inside the coffee machine body 1, and a grinding rod 11 for grinding coffee beans is fixed at the output end of the second motor 9, and a grinding disc 10 adapted thereto is arranged on the outside of the grinding rod 11.

[0045] As can be seen from the above, when in use, after the coffee to be ground is placed into the feeding bin 2, the coffee beans in the feeding bin 2 flow into the grinding disc 10, and the grinding rod 11 is driven to rotate through the output end of the second motor 9, so that the grinding rod 11 cooperates with the grinding disc 10 to grind the coffee beans.

[0046] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.11 , Fig.12 and Fig.13 As shown, a protective cylinder 5 is disposed inside the side cover 3, a cutting device 7 for cutting coffee beans is disposed inside the protective cylinder 5, and a first motor 6 for driving the cutting device 7 to move is also disposed on the top of the coffee machine body 1;

[0047] The cutting device 7 includes a transmission shaft 701, a transmission rod 702 and a cutting bowl 708. The top of the transmission shaft 701 is fixed to the output shaft of the first motor 6, the top of the transmission rod 702 is fixed to the top of the inner wall of the coffee machine body 1, and the bottom of the transmission shaft 701 passes through the transmission rod 702 and is provided with a shaking mechanism. The bottom of the shaking mechanism is provided with a storage bowl 707 for intermittent feeding of coffee beans. The middle part of the storage bowl 707 is recessed inward to form a storage groove, and the middle part of the cutting bowl 708 is recessed inward to form a cutting groove, and the bottom of the cutting bowl 708 is provided with a cutting plate 722 for dividing the coffee beans, and the top of the storage groove is provided with some There are several discharge ports of different sizes, which are evenly arranged at the top of the storage tank and arranged from top to bottom in descending order according to the diameter of the discharge ports. The output shaft of the first motor 6 passes through the coffee machine body 1 and is fixed to the top of the transmission shaft 701. A positioning ring is provided in the middle of the transmission rod 702, and a positioning hole matched with the transmission shaft 701 is provided in the middle of the positioning ring. The cutting bowl 708 is provided inside the cutting groove and a gap is provided between the bottom of the cutting bowl 708 and the bottom of the cutting groove. The transmission shaft 701 is driven to rotate by the output shaft of the first motor 6, so that the transmission shaft 701 drives the transmission mechanism to drive the storage bowl 707 to rotate.

[0048] A reversible cutting plate 722 is provided at the bottom of the material storage bowl 707, and a plurality of slitting knives for slicing coffee beans are provided on the top of the cutting plate 722, and a plurality of steel cones for splitting coffee beans are provided at the bottom of the cutting plate 722. Two fixing rods 709 are provided at the top of the cutting bowl 708, and the opposite ends of the two fixing rods 709 are fixed to the inner wall of the protective tube 5, and the two ends of the cutting bowl 708 are fixed to the two fixing rods 709. A cross-section is provided at the bottom of the cutting bowl 708, and a through groove matched with the cutting plate 722 is provided on the cross-section. The blade of the slitting knife contacts the bottom of the material storage bowl 707, and the cutting plate 722 is rotatably installed in the through groove. The slitting knife and the steel cone are switched by flipping the cutting plate 722, so that the coffee beans inside the material storage bowl 707 fall onto the surface of the cutting plate 722, and the coffee beans are squeezed and cut by the rotating material storage bowl 707 to cut the coffee beans into small pieces.

[0049] The transmission mechanism includes a rotating rod 703 rotatably mounted at the bottom of the transmission rod 702, two support frames 712 are fixed at both ends of the rotating rod 703, a gear rod 711 is arranged on the top of the two support frames 712, a movable pull rod 713 is arranged on the gear rod 711, the pull rod 713 is movably connected to the bottom of the gear rod 711, a rocking rod 704 is arranged in the middle of the rotating rod 703, a retractable extension rod 721 is arranged inside the rocking rod 704, two pulleys 705 are arranged below the extension rod 721, a sliding rod 706 is arranged between the two pulleys 705, and the two ends of the sliding rod 706 are extended to the outside of the two pulleys 705 and then fixed to the top of the storage tank. A mounting ring is fixed in the middle of the rotating rod 703, the top of the rocking rod 704 is fixed to the mounting ring, the bottom of the rocking rod 704 is provided with a rectangular groove matched with the extension rod 721, a first spring is provided between the extension rod 721 and the rectangular groove, two rotatable connecting rings are provided in the middle of the two pulleys 705, the bottom of the extension rod 721 extends to the outside of the rocking rod 704 and is fixed to one of the connecting rings, a connecting rod is provided between the two pulleys 705, and a circular groove matched with the sliding rod 706 is provided in the middle of the two pulleys 705, and the sliding rod 706 cooperates with the pulley 705 so that the pulley 705 can move along the outer wall of the sliding rod 706.

[0050] Two material receiving frames 8 are also arranged inside the side cover 3. Two buckles 14 are arranged on the opposite sides of the two material receiving frames 8. Two arc-shaped dustproof rings 12 are arranged on the opposite sides of the two buckles 14. The tops of the two dustproof rings 12 extend to the outside of the material receiving frame 8 and contact with the bottom of the grinding rod 11. The tops of the two buckles 14 are chamfered, and the outer walls of the two material receiving frames 8 are provided with handles for people to take and put. The chamfers of the buckles 14 facilitate the ground coffee to enter the inside of the material receiving frame 8.

[0051] By adopting the above technical solution:

[0052] When in use, after the coffee beans in the feeding bin 2 enter the storage bowl 707, the output shaft of the first motor 6 drives the transmission shaft 701 to rotate, and the transmission shaft 701 drives the pull rod 713 to rotate, so that the pull rod 713 rotates around the axis of the transmission shaft 701 and moves along the outer wall of the gear rod 711, so that the gear rod 711 drives the rotating rod 703 to rotate through the support frame 712, so that the rotating rod 703 drives the rotating rod 703 to drive the mounting ring to rotate, so that the mounting ring drives the rocking rod 704 to rotate, so that the rocking rod 704 drives the extension rod 721 to rotate, so that the extension rod 721 drives the two pulleys 705 to move, so that the two pulleys 705 move along the sliding rod 712. 06, and the outer wall of the material storage bowl 707 moves, and the elastic force released by the first spring pushes the extension rod 721 to move, so that the extension rod 721 pushes the sliding rod 706 to move through the pulley 705, and the sliding rod 706 drives the material storage bowl 707 to rotate around the axis of the fixed rod 709, so that the coffee beans in the material storage bowl 707 enter the interior of the cutting bowl 708 through the discharge port and then fall into the top of the cutting plate 722, so that the material storage bowl 707 pushes the coffee beans to contact the cutting knife or the steel cone, and the coffee beans are crushed, and the crushed coffee bean fragments are subsequently ground, which can not only make the coffee beans ground more delicate, but also shorten the working time of the grinding disc 10 and the grinding rod 11.

[0053] Secondly, refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a bottom plate 714 is fixed to the bottom of the transmission shaft 701, and a lifting plate 717 is sleeved on the outer wall of the pull rod 713. Two threaded sleeves 716 are fixed on the side facing the bottom plate 714 and the lifting plate 717, and a bidirectional threaded rod 715 is screwed between the two threaded sleeves 716. Threaded holes matching the bidirectional threaded rod 715 are provided on the side facing the two threaded sleeves 716, and symmetrical threads are provided at both ends of the bidirectional threaded rod 715, and an adjusting button for people to grasp is fixed in the middle of the bidirectional threaded rod 715, and a limiting hole matching the gear rod 711 is provided at the bottom of the pull rod 713. By rotating the adjusting button, the bidirectional threaded rod 715 is driven to rotate, so that the bidirectional threaded rod 715 is matched with the threaded hole of the threaded sleeve 716, and the distance between the bottom plate 714 and the lifting plate 717 is adjusted, and the distance between the pull rod 713 and the transmission shaft 701 is adjusted.

[0054] By adopting the above technical solution:

[0055] When in use, rotate the adjusting knob to make the adjusting knob drive the bidirectional threaded rod 715 to rotate, so that the bidirectional threaded rod 715 cooperates with the threaded hole of the threaded sleeve 716, and the threaded sleeve 716 moves along the outer wall of the bidirectional threaded rod 715, so that the threaded sleeve 716 pushes the lifting plate 717 to move, and the lifting plate 717 drives the pull rod 713 to move, and the distance between the adjustment pull rod 713 and the transmission shaft 701 becomes larger or smaller, so that the movement trajectory of the pull rod 713 becomes larger or smaller, and the angular velocity of the gear rod 711 driven by the pull rod 713 becomes larger or smaller, so that not only can coffee beans of different sizes in the storage bowl 707 be discharged through different discharge ports, which is convenient for the separation of coffee beans, but also the contact area between the storage bowl 707 and the cutting plate 722 can be increased, and the working efficiency of the coffee bean crushing can be further improved.

[0056] Again, reference Figure 6 , Fig.12 and Fig.14 As shown, an adjusting rod 723 is fixed to the outer wall of the cutting plate 722, and a movable reversing sleeve 724 is provided after the adjusting rod 723 passes through the protective tube 5 at one end away from the cutting plate 722, and two locking rods 725 are symmetrically fixed to the outer wall of the reversing sleeve 724, and a clamping plate 726 is also fixed to the outer wall of the protective tube 5, and a locking groove matched with the locking rod 725 is provided on the clamping plate 726, a wedge block is provided at the end of the adjusting rod 723 away from the cutting plate 722, and a wedge groove matched with the wedge block is provided on the inner wall of the reversing sleeve 724, and prompt words are respectively provided at the ends of the two locking rods 725 away from the reversing sleeve 724, and the prompt words correspond to the slitting knife and the steel cone.

[0057] By adopting the above technical solution:

[0058] When in use, pull the reversing sleeve 724 so that the reversing sleeve 724 drives the locking rod 725 to move, so that the locking rod 725 moves to the outside of the locking groove of the clamping plate 726, and rotate the locking rod 725 so that the locking rod 725 drives the adjusting rod 723 to rotate through the wedge block, so that the adjusting rod 723 drives the cutting plate 722 to rotate, and the slitting knife or steel cone on the cutting plate 722 is adjusted to move to the bottom of the storage bowl 707, so that coffee beans of different sizes or types can be crushed.

[0059] Finally, reference Figure 5 , Figure 6 , Fig. 9 and Fig.10As shown, an outer ring 718 is fixed to the lower half of the outer wall of the cutting bowl 708, and two limiting sleeves 719 are symmetrically fixed to the bottom of the outer ring 718. Two retractable telescopic rods 720 are arranged at the bottom of the two limiting sleeves 719, and a liftable spacer plate 710 is fixed to the bottom of the two telescopic rods 720. A socket matched with the grinding rod 11 is arranged in the middle of the spacer plate 710, and a locking groove matched with the telescopic rod 720 is arranged at the bottom of the limiting sleeve 719, and a second spring is arranged in the locking groove, and the free end of the second spring is fixed to the top of the telescopic rod 720.

[0060] A material blocking ring 4 is fixed on the top of the grinding disc 10, and a mounting groove matched with the material spacing disc 710 is arranged in the middle of the material blocking ring 4. Baffles 13 are symmetrically fixed to the upper half of the grinding rod 11, and two clamping grooves are arranged on the side of the two baffles 13 away from the grinding rod 11. A protrusion matched with the clamping groove is arranged in the middle of the material spacing disc 710, and the protrusion is arranged on the inner wall of the socket. The material spacing disc 710 is installed in the mounting groove, and the height of the clamping groove is greater than the height of the protrusion. The middle of the material spacing disc 710 is recessed downward to form an inclined surface, and a plurality of material discharge grooves are arranged on the material spacing disc 710.

[0061] By adopting the above technical solution:

[0062] During use, when coffee bean fragments fall onto the partition plate 710, the inclined surface on the partition plate 710 can make the coffee bean fragments quickly fall into the inside of the retaining ring 4, and when the coffee bean fragments on the partition plate 710 fall onto the partition plate 710, the impact force of the coffee bean fragments when falling pushes the partition plate 710 to move downward, so that the partition plate 710 drives the telescopic rod 720 to move downward, and the telescopic rod 720 drives the second spring to deform, and the second spring releases the elastic force, so that the second spring drives the partition plate 710 to move up and down through the telescopic rod 720, so that the coffee bean fragments on the partition plate 710 can be shaken off, and the coffee bean fragments on the partition plate 710 are prevented from accumulating.

[0063] In addition, according to Figure 1-Figure 14 As shown, the present invention also provides a grinding method of a coffee bean grinding device, comprising the following steps:

[0064] S1, open the side cover 3, push the material storage bowl 707 to move, so that the material storage bowl 707 turns around the axis of the fixed rod 709, push the cutting plate 722 to turn over, so that the slitting knife or steel cone of the adjusting cutting plate 722 contacts the bottom of the cutting bowl 708;

[0065] S2, after the coffee beans to be ground are placed in the feeding bin 2, the coffee beans enter the storage bowl 707, and the transmission shaft 701 is driven to rotate by the output shaft of the first motor 6, so that the transmission shaft 701 drives the storage bowl 707 to rotate through the shaking mechanism, so that the coffee beans enter the cutting bowl 708 through the discharge port of the storage bowl 707, and fall onto the top of the cutting plate 722, and the coffee beans are cut by the cooperation of the storage bowl 707 and the cutting plate 722 to form coffee bean fragments;

[0066] S3, after the cut coffee bean fragments pass through the spacer plate 710 and enter the interior of the blocking ring 4, the grinding rod 11 is driven to rotate by the output shaft of the first motor 6, so that the grinding rod 11 cooperates with the grinding disc 10 to grind the coffee bean fragments into powder, that is, coffee powder;

[0067] S4. After the coffee powder enters the two receiving frames 8, the handle is pulled to separate the two receiving frames 8, and the two receiving frames 8 are taken out of the side cover 3 to complete the grinding of the coffee beans.

[0068] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A coffee bean grinding device, characterized in that: include: A coffee machine body (1), wherein a feeding bin (2) is fixed at the top of both sides of the coffee machine body (1) for people to put coffee beans, two side covers (3) that can be opened and closed are arranged on both sides of the coffee machine body (1), and a second motor (9) is arranged inside the coffee machine body (1), a grinding rod (11) for grinding coffee beans is fixed at the output end of the second motor (9), and a grinding disc (10) adapted thereto is arranged outside the grinding rod (11); A protective cylinder (5) is arranged inside the side cover (3), a cutting device (7) for cutting coffee beans is arranged inside the protective cylinder (5), and a first motor (6) for driving the cutting device (7) is also arranged on the top of the coffee machine body (1); The cutting device (7) comprises a transmission shaft (701), a transmission rod (702) and a cutting bowl (708); the top of the transmission shaft (701) is fixed to the output shaft of the first motor (6); the top of the transmission rod (702) is fixed to the top of the inner wall of the coffee machine body (1); the bottom of the transmission shaft (701) passes through the transmission rod (702) and is provided with a shaking mechanism; the bottom of the shaking mechanism is provided with a storage bowl (707) for intermittently feeding coffee beans; the middle part of the storage bowl (707) is recessed inwards to form a storage groove; the middle part of the cutting bowl (708) is recessed inwards to form a cutting groove; and the bottom of the cutting bowl (708) is provided with a cutting plate (722) for dividing the coffee beans; A reversible cutting plate (722) is arranged at the bottom of the material storage bowl (707), a plurality of cutting knives for slicing coffee beans are arranged at the top of the cutting plate (722), and a plurality of rigid cones for splitting coffee beans are arranged at the bottom of the cutting plate (722). Two fixing rods (709) are arranged at the top of the material cutting bowl (708), and opposite ends of the two fixing rods (709) are fixed to the inner wall of the protective tube (5), and both ends of the material cutting bowl (708) are fixed to the two fixing rods (709).

2. A coffee bean grinding device according to claim 1, characterized in that: The transmission mechanism comprises a rotating rod (703) rotatably mounted at the bottom of a transmission rod (702), two support frames (712) being fixed at both ends of the rotating rod (703), a shift rod (711) being arranged at the top of the two support frames (712), a movable pull rod (713) being arranged on the shift rod (711), the pull rod (713) being movably connected to the bottom of the shift rod (711), a rocking rod (704) being arranged at the middle of the rotating rod (703), a retractable extension rod (721) being arranged inside the rocking rod (704), two pulleys (705) being arranged below the extension rod (721), a sliding rod (706) being arranged between the two pulleys (705), and the two ends of the sliding rod (706) being extended to the outside of the two pulleys (705) and then fixed to the top of the storage tank.

3. A coffee bean grinding device according to claim 2, characterized in that: A bottom plate (714) is fixed to the bottom of the transmission shaft (701), a lifting plate (717) is sleeved on the outer wall of the pull rod (713), two threaded sleeves (716) are fixed on the side facing each other of the bottom plate (714) and the lifting plate (717), and a bidirectional threaded rod (715) is screwed between the two threaded sleeves (716).

4. The coffee bean grinding device according to claim 3, characterized in that: An outer ring (718) is fixed to the lower half of the outer wall of the cutting bowl (708), and two limiting sleeves (719) are symmetrically fixed to the bottom of the outer ring (718). Two retractable telescopic rods (720) are arranged at the bottom of the two limiting sleeves (719), and a liftable material separation plate (710) is fixed to the bottom of the two retractable rods (720).

5. The coffee bean grinding device according to claim 4, characterized in that: An adjusting rod (723) is fixed to the outer wall of the cutting plate (722); an end of the adjusting rod (723) away from the cutting plate (722) passes through the protective tube (5) and is provided with a movable reversing sleeve (724); two locking rods (725) are symmetrically fixed to the outer wall of the reversing sleeve (724); a clamping plate (726) is also fixed to the outer wall of the protective tube (5); and a locking groove matched with the locking rod (725) is provided on the clamping plate (726).

6. The coffee bean grinding device according to claim 5, characterized in that: A material blocking ring (4) is fixed on the top of the grinding disc (10), a mounting groove matched with the material spacer disc (710) is arranged in the middle of the material blocking ring (4), baffles (13) are symmetrically fixed to the upper half of the grinding rod (11), two slots are arranged on the side of the two baffles (13) away from the grinding rod (11), and a protrusion matched with the slot is arranged in the middle of the material spacer disc (710).

7. The coffee bean grinding device according to claim 6, characterized in that: Two material receiving frames (8) are also arranged inside the side cover (3), and two buckles (14) are arranged on the opposite sides of the two material receiving frames (8). Two arc-shaped dustproof rings (12) are arranged on the opposite sides of the two buckles (14), and the tops of the two dustproof rings (12) extend to the outside of the material receiving frames (8) and then contact the bottom of the grinding rod (11).

8. The grinding method of a coffee bean grinding device according to claim 7, characterized in that: The following steps are involved: S1, open the side cover (3), push the material storage bowl (707) to move, so that the material storage bowl (707) turns around the axis of the fixed rod (709), push the cutting plate (722) to turn, and make the cutting knife or steel cone of the adjusting cutting plate (722) contact the bottom of the cutting bowl (708); S2, after the coffee beans to be ground are placed in the feeding bin (2), the coffee beans are allowed to enter the material storage bowl (707), and the transmission shaft (701) is driven to rotate by the output shaft of the first motor (6), so that the transmission shaft (701) drives the material storage bowl (707) to rotate through the shaking mechanism, so that the coffee beans enter the cutting bowl (708) through the discharge port of the material storage bowl (707), and then fall onto the top of the cutting plate (722), and the coffee beans are cut by the cooperation of the material storage bowl (707) and the cutting plate (722) to form coffee bean fragments; S3, after the cut coffee bean fragments pass through the spacer plate (710) and enter the interior of the blocking ring (4), the grinding rod (11) is driven to rotate by the output shaft of the first motor (6), so that the grinding rod (11) and the grinding disc (10) cooperate to grind the coffee bean fragments into powder, that is, coffee powder; S4. After the coffee powder enters the two receiving frames (8), the handle is pulled to separate the two receiving frames (8), and the two receiving frames (8) are taken out of the side cover (3), thereby completing the grinding of the coffee beans.

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