A coffee roaster

Abstract

The application discloses a coffee roaster, which comprises a main machine, a cooling frame fixedly arranged on one side of the main machine, a partition plate fixedly arranged in the cooling frame, a plurality of air holes formed in the partition plate, a discharging groove formed in the partition plate, a notch formed in one side of the cooling frame, a discharging frame fixedly arranged in the notch, a cover plate movably and clippably arranged on the discharging groove, the discharging frame being located below the discharging groove, a cylinder movably and penetratively arranged at the center of the partition plate, and a grabbing assembly arranged on one side of the cylinder and capable of grabbing and throwing coffee beans. The coffee roaster can grab and pour out the coffee beans by the cooperation of the moving rod, the fixing block, the moving plate and the rotating plate, and can further enhance the heat dissipation effect of the coffee beans.

Description

Technical Field

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

[0002] A coffee roaster is a device used to roast coffee beans. It causes a chemical reaction in the coffee beans by heating them, thereby changing their flavor and aroma. After roasting, the beans are still very hot. In order to prevent the roasted coffee beans from continuing to undergo the roasting chemical reaction due to the temperature after they come out of the drum, the roasted coffee beans need to be placed on a cooling tray and stirred while hot air is drawn out for cooling treatment. The temperature of the coffee beans will gradually decrease, thereby fixing their flavor and aroma.

[0003] During the cooling process, a stirring rod is usually used to accelerate the cooling of coffee beans. This is because the stirring rod helps the coffee beans dissipate heat more evenly, avoiding localized overheating or undercooling. At the same time, the stirring rod also helps keep the coffee beans loose during cooling, preventing them from clumping or sticking together. Although the rotation of the stirring rod in the cooling pan can cause the coffee beans to turn over, allowing the beans that are piled up and located in the inner part to turn to the surface for better heat dissipation, the coffee beans will still clump together, resulting in a small contact area with the air surface and thus low cooling efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a coffee roaster to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coffee roaster, comprising a main unit, a cooling frame fixedly disposed on one side of the main unit, a partition fixedly disposed inside the cooling frame, a plurality of ventilation holes being provided on the partition, a feeding trough being provided on the partition, a slot being provided on one side of the cooling frame, a feeding frame being fixedly disposed inside the slot, a cover plate being movably snapped onto the feeding trough, the feeding frame being located below the feeding trough, a cylinder being movably inserted through the center of the partition, and a gripping component being provided on one side of the cylinder for gripping and scattering coffee beans.

[0006] As a further aspect of the present invention: the gripping component includes a fixed plate, a movable rod is movably disposed through the center of the fixed plate, a fixed block is fixedly disposed on the side of the movable rod away from the fixed plate, rotating plates are axially symmetrically disposed on both sides of the fixed block, a movable plate is rotatably connected to the side of the rotating plate away from the fixed block, the top of the movable plate is slidably connected to the fixed plate, and a gripping frame is movably connected to the bottom of the movable plate, with multiple gaps opened on the outer side of the gripping frame.

[0007] As a further embodiment of the present invention: a fixed rod is movably disposed through the center of the cylinder, the bottom of the fixed rod is fixedly connected to the cooling frame, a first bevel gear is fixedly sleeved on the outside of the fixed rod, rotating rods are axially symmetrically disposed on both sides of the cylinder, a plurality of stirring rods are fixedly disposed on the outside of the rotating rods, the end of the rotating rod away from the stirring rod is located inside the cylinder and a second bevel gear is fixedly disposed at the end, the second bevel gear meshes with the first bevel gear for transmission.

[0008] As a further embodiment of the present invention: vertical grooves are symmetrically provided on both sides of the cylinder, a movable block is slidably embedded in the vertical groove, a connecting rod is fixedly provided on the side of the movable block away from the cylinder, the other end of the connecting rod is fixedly connected to the fixed plate, and a return spring is fixedly provided between the bottom of the movable block and the bottom of the vertical groove.

[0009] As a further embodiment of the present invention: a fixed frame is fixedly provided at the bottom of the movable plate, a movable rod is rotatably provided between the fixed frames, two positioning plates are fixedly sleeved on the outside of the movable rod, and the end of the positioning plate away from the movable rod is fixedly connected to the gripping frame.

[0010] As a further embodiment of the present invention: one end of the movable rod movably passes through one side of the fixed frame and a swing plate is fixedly provided at the end; both of the two positioning plates are fixedly provided with torsion springs between them and the fixed frame on opposite sides; and the movable rod is movably disposed inside the torsion springs.

[0011] As a further embodiment of the present invention: a stop bar is axially and symmetrically fixed on the outer side of the cylinder, and the stop bar is in movable contact with the swing plate.

[0012] As a further embodiment of the present invention: a positioning spring is fixedly provided between the fixing block and the fixing plate, the positioning spring is movably sleeved on the outside of the moving rod, and limit plates are axially symmetrically provided on both sides of the cylinder, the limit plates being movably abutting against the fixing block.

[0013] As a further aspect of the present invention, the height of the limiting plate is lower than the height of the stop bar.

[0014] As a further embodiment of the present invention: a cylinder is fixedly provided at the top of the fixed rod, a curved groove is provided on the outer side of the cylinder, and limit rods are axially symmetrically fitted on both sides of the curved groove, and the two limit rods are respectively fixedly connected to the movable blocks on both sides on the side away from the curved groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] (1) The gripping frame grips and pours out coffee beans by means of the cooperation of components such as moving rod, fixed block, moving plate and rotating plate, which can further enhance the heat dissipation effect on coffee beans;

[0017] (2) The meshing relationship between the second bevel gear and the first bevel gear enables the rotating rod to rotate on its own axis during the revolution, which improves the stirring and heat dissipation effect of coffee beans;

[0018] (3) The rotation of the movable rod drives the gripping frame to rotate, which makes it easier for all the coffee beans in the gripping frame to roll out, so that more coffee beans can come into contact with the air and enhance the cooling effect.

[0019] (4) During the process of grabbing and releasing coffee beans, the cylinder is also constantly rotating, so the area of ​​coffee beans grabbed is different, thus ensuring the uniformity of heat dissipation of coffee beans. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the partition structure in this invention.

[0022] Figure 3 This is a schematic diagram of the slot structure in this invention.

[0023] Figure 4 This is a schematic diagram of the cylinder structure in this invention.

[0024] Figure 5 for Figure 4 Enlarged diagram of part A in the middle.

[0025] Figure 6 This is a schematic diagram of the internal structure of the cooling frame in this invention.

[0026] Figure 7 for Figure 6 Enlarged schematic diagram of part B in the middle.

[0027] Figure 8 This is a schematic diagram of the internal structure of the cylinder in this invention.

[0028] Figure 9 This is a schematic diagram of the state when the grabbing frame is at its highest point in this invention.

[0029] Figure 10 for Figure 9 Enlarged diagram of section C.

[0030] In the diagram: 1. Main unit; 2. Feeding frame; 3. Cover plate; 4. Cooling frame; 41. Groove; 5. Partition plate; 51. Ventilation hole; 52. Feeding trough; 6. Cylinder; 61. Vertical groove; 7. Gripping assembly; 71. Fixing plate; 72. Moving rod; 73. Fixing block; 74. Rotating plate; 75. Moving plate; 76. Gripping frame; 77. Gap; 8. Fixing rod; 9. First bevel gear; 10. Rotating rod; 11. Stirring rod; 12. Second bevel gear; 13. Moving block; 14. Connecting rod; 15. Return spring; 16. Fixing frame; 17. Movable rod; 18. Positioning plate; 19. Swinging plate; 20. Torsion spring; 21. Stop bar; 22. Positioning spring; 23. Limiting plate; 24. Cylinder; 241. Curved chute; 25. Limiting rod. Detailed Implementation

[0031] Please see Figures 1-10 In this embodiment of the invention, a coffee roaster includes a main unit 1. A cooling frame 4 is fixedly installed on one side of the main unit 1. A partition 5 is fixedly installed inside the cooling frame 4. The partition 5 has multiple ventilation holes 51 and a feeding trough 52. A slot 41 is opened on one side of the cooling frame 4. A feeding frame 2 is fixedly installed inside the slot 41. A cover plate 3 is movably engaged with the feeding trough 52. The feeding frame 2 is located below the feeding trough 52. The partition 5 has a centrally movable passage. A cylindrical tube 6 is installed, and a gripping component 7 is provided on one side of the cylindrical tube 6 to grab and throw coffee beans. The main unit 1 is used to roast the coffee beans. The roasted coffee beans are poured onto the partition 5 of the cooling frame 4. The partition 5 has multiple ventilation holes 51, which can expel the heat generated by the coffee beans more quickly and accelerate the cooling efficiency of the coffee beans. In addition to the natural cooling of the coffee beans, an exhaust fan can be installed on one side of the cooling frame 4 to quickly remove the heat generated by the coffee beans, so that the cooling frame 4... The surrounding temperature decreases, which helps to increase the cooling speed of the coffee beans. In addition, the gripping component 7 can be used to reach into the pile of coffee beans, grab some of them, and then lift them into the air. The gripping effect of the gripping component 7 on the coffee beans is released, and the coffee beans fall back onto the partition 5 of the cooling frame 4. This increases the contact area between the coffee beans and the air, promoting heat dissipation. When the coffee beans are thrown into the air, they come into full contact with the surrounding air, allowing heat to be transferred to the air more quickly, thereby accelerating the cooling process. In addition, this method can also prevent coffee beans from piling up in the cooling tray, reducing the possibility of local overheating or undercooling, and helping to maintain uniform cooling of the coffee beans. Repeatedly using the gripping component 7 to grab and release the coffee beans can shorten the cooling time of the coffee beans. After all the coffee beans have cooled down, the cover plate 3 is opened, and the coffee beans on the partition 5 are pushed into the feeding trough 52 and discharged through the feeding frame 2 set in the trough opening 41. The cylinder 6 provides support for the gripping component 7.

[0032] See Figures 4-7 As shown, in this embodiment, preferably, the gripping component 7 includes a fixed plate 71, a movable rod 72 is movably disposed through the center of the fixed plate 71, a fixed block 73 is fixedly disposed on the side of the movable rod 72 away from the fixed plate 71, rotating plates 74 are axially symmetrically disposed on both sides of the fixed block 73, a movable plate 75 is rotatably connected to the side of the rotating plate 74 away from the fixed block 73, the top of the movable plate 75 is slidably connected to the fixed plate 71, and a gripping frame 76 is rotatably connected to the bottom of the movable plate 75. Multiple slits 77 are provided on the outer side of the gripping frame 76; the gripping frame 76 is initially positioned above the coffee bean. The fixed plate 71 moves downward, causing the moving rod 72, fixed block 73, rotating plate 74, moving plate 75, and gripping frame 76 to move downward synchronously. When the gripping frame 76 contacts the coffee bean surface, it is horizontal and has no tilt angle. Multiple gaps 77 are provided on the outer side of the gripping frame 76 to allow it to penetrate deeper into the accumulated coffee beans more easily and effortlessly. The gaps 77 reduce resistance during the movement of the gripping frame 76. After the gripping frame 76 penetrates deep into the coffee beans, the moving rod 72 moves upward along the fixed plate 71. Moving the movable lever 72 upwards causes the fixed block 73 to move upwards. The upward movement of the fixed block 73 causes the rotating plate 74 to rotate, which in turn causes the movable plates 75 on both sides to move closer together along the fixed plate 71. This closer movement of the movable plates 75 causes the gripping frames 76 to move closer together deep within the coffee beans. The gripping frames 76 then move laterally inside the coffee beans, allowing more coffee beans to be gripped. Afterwards, the fixed plate 71 is moved upwards until the gripping frames 76 are above the coffee beans, and then the movable lever 72 is moved downwards. The downward movement of the movable lever 72 causes the fixed block 73 to move downwards, which in turn causes the rotating plate 74 to move closer together. 4. The reverse rotation causes the two moving plates 75 to move away from each other, and the two gripping frames 76 also move away from each other. The coffee beans in the gripping frames 76 move upward so that they can fully contact the surrounding air, allowing heat to be transferred to the air more quickly, thereby accelerating the cooling process. Since the gripping frames 76 are movably connected to the bottom of the moving plates 75, the gripping frames 76 can rotate relative to the moving plates 75. Rotating the gripping frames 76 at a certain angle makes it easier to pour out the coffee beans in the gripping frames 76. This allows more coffee beans to contact the air during a single gripping process, further ensuring cooling efficiency.

[0033] See Figure 5 and Figure 8As shown, in this embodiment, preferably, a fixed rod 8 is movably disposed through the center of the cylinder 6. The bottom of the fixed rod 8 is fixedly connected to the cooling frame 4. A first bevel gear 9 is fixedly sleeved on the outside of the fixed rod 8. Rotating rods 10 are axially symmetrically arranged on both sides of the cylinder 6. Multiple stirring rods 11 are fixedly disposed on the outside of the rotating rods 10. The end of the rotating rod 10 away from the stirring rods 11 is located inside the cylinder 6 and a second bevel gear 12 is fixedly disposed at its end. The second bevel gear 12 meshes with the first bevel gear 9 for transmission. When the roasted coffee beans are poured onto the partition 5, the motor of the cylinder 6 is started, and the cylinder 6 rotates around the fixed rod 8. The rotation of the cylinder 6 drives the rotating rods 10. Rotating rod 10 and stirring rod 11 rotate synchronously within the cooling frame 4. The rotation of rotating rod 10 and stirring rod 11 within the cooling frame 4 can stir the coffee beans, loosening them and releasing some heat. Furthermore, during the rotation of rotating rod 10, the second bevel gear 12 will rotate around the first bevel gear 9. The second bevel gear 12 will also rotate on its own axis during its revolution, thereby causing rotating rod 10 to rotate on its own axis. The rotation of rotating rod 10, which in turn causes stirring rod 11 to rotate, can further enhance the stirring effect on the coffee beans and accelerate the release of heat. In this step, the meshing relationship between the second bevel gear 12 and the first bevel gear 9 enables rotating rod 10 to rotate on its own axis during its revolution, resulting in a better stirring and heat dissipation effect on the coffee beans.

[0034] See Figure 6 and Figure 7 As shown, in this embodiment, preferably, vertical grooves 61 are symmetrically provided on both sides of the cylinder 6. A moving block 13 is slidably embedded in the vertical groove 61. A connecting rod 14 is fixedly provided on the side of the moving block 13 away from the cylinder 6. The other end of the connecting rod 14 is fixedly connected to the fixed plate 71. A return spring 15 is fixedly provided between the bottom of the moving block 13 and the bottom of the vertical groove 61. When it is necessary to insert the gripping frame 76 into the coffee bean, the moving block 13 moves downward along the vertical groove 61. The downward movement of the moving block 13 will drive the connecting rod 14 and the fixed plate 71 to descend synchronously. During this process, the return spring 15 will be compressed. The downward movement of the fixed plate 71 will eventually drive the gripping frame 76 into the coffee bean to grip it.

[0035] See Figures 7-10As shown, in this embodiment, preferably, a fixed frame 16 is fixedly installed at the bottom of the movable plate 75, and a movable rod 17 is rotatably installed between the fixed frames 16. Two positioning plates 18 are fixedly sleeved on the outer side of the movable rod 17, and the end of the positioning plate 18 away from the movable rod 17 is fixedly connected to the gripping frame 76. When the gripping frame 76 moves downward until it contacts the surface of the coffee bean, the positioning plate 18 is in a vertically downward state, and the gripping frame 76 is also in a vertically downward state. Then, the gripping frame 76 enters the depth of the coffee bean and loads a portion of the coffee bean into the gripping frame 76. Then, the moving block 13 moves upward along the vertical groove 61. The movement causes the gripping frame 76 to move above the coffee beans. At this time, rotating the movable rod 17 will cause the positioning plate 18 to rotate, thereby causing the two gripping frames 76 to rotate in a direction facing each other. The rotation of the gripping frames 76 causes the coffee beans inside the gripping frames 76 to flow out and fall back onto the partition 5 from a height. This process allows the coffee beans to have full contact with the air. The fixing frame 16 provides support for the movable rod 17. In this step, the rotation of the gripping frames 76 caused by the rotation of the movable rod 17 makes it easier for all the coffee beans inside the gripping frames 76 to roll out, allowing more coffee beans to come into contact with the air and enhancing the cooling effect.

[0036] See Figures 9-10 As shown, in this embodiment, preferably, one end of the movable rod 17 movably passes through one side of the fixed frame 16 and the end is fixedly provided with a swing plate 19. Both positioning plates 18, on opposite sides, are fixedly provided with torsion springs 20 between themselves and the fixed frame 16. The movable rod 17 is movably disposed inside the torsion springs 20. When the gripping frame 76 moves from deep within the coffee bean to a higher position and eventually moves above the coffee bean, it will cause the swing plate 19 to move upwards. When the gripping frame 76 moves above the coffee bean, the swing plate 19 rotates. The rotation of 9 will cause the movable rod 17 to rotate. During this process, the torsion spring 20 will store torsion energy and the gripping frame 76 will rotate to pour out the coffee beans inside. After all the coffee beans in the gripping frame 76 have been poured out, the force applied to the swing plate 19 to make it rotate is removed. Under the force of the torsion spring 20 returning to its original state, the movable rod 17, the swing plate 19 and the gripping frame 76 will rotate back to their initial positions, so that the gripping frame 76 becomes vertical again. This will make it easier for the gripping frame 76 to continue to descend and grab coffee beans.

[0037] See Figures 9-10As shown, in this embodiment, preferably, a stop bar 21 is axially symmetrically fixed on the outer side of the cylinder 6, and the stop bar 21 is in movable contact with the swing plate 19. When the grabbing frame 76 moves from the depth of the coffee bean to a higher position and finally moves above the coffee bean, the swing plate 19 will contact the stop bar 21, causing the swing plate 19 to rotate. The rotation of the swing bar will eventually drive the grabbing frame 76 to rotate, thereby pouring out the coffee bean. After all the coffee beans in the grabbing frame 76 have been poured out, it will move downward again into the depth of the coffee bean. As the swing plate 19 moves downward, it will gradually lose contact with the stop bar 21. Under the action of the torsion spring 20, it will drive the grabbing frame 76 to rotate back to the initial state, which is convenient for subsequent grabbing of coffee beans.

[0038] See Figure 5 , Figure 7 and Figure 9 As shown, in this embodiment, preferably, a positioning spring 22 is fixedly provided between the fixing block 73 and the fixing plate 71. The positioning spring 22 is movably sleeved on the outside of the moving rod 72. Limiting plates 23 are axially symmetrically provided on both sides of the cylinder 6, and the limiting plates 23 are movably abutting against the fixing block 73. When the gripping frame 76 moves downward, the fixing plate 71 and the fixing block 73 also move downward. When the gripping frame 76 moves to the depth of the coffee bean, the fixing block 73 will abut against the limiting plate 23 during the descent, thereby making the fixing block 73... 3. Moving upwards causes the moving rod 72 to move upwards. During this process, the positioning spring 22 will be compressed. The upward movement of the moving rod 72 will eventually cause the two gripping frames 76 to move closer to each other until they abut against each other, allowing more coffee beans to be gripped. Subsequently, the fixing plate 71, the fixing block 73, and the gripping frames 76 move upwards. During the upward movement of the fixing block 73, due to the loss of the abutment of the limiting plate 23, the moving rod 72 and the fixing block 73 will move downwards under the action of the positioning spring 22, causing the two gripping frames 76 to move away from each other.

[0039] See Figure 7 As shown, in this embodiment, preferably, the height of the limiting plate 23 is lower than the height of the stop bar 21. When the gripping frame 76 is at its highest point, the stop bar 21 is in contact with the swing plate 19, and the gripping frame 76 is in an inclined state. Then, as the gripping frame 76 moves downward, the swing plate 19 first disengages from the stop bar 21. Under the action of the torsion spring 20, the gripping frame 76 is no longer inclined. Then, it continues to move downward until the gripping frame 76 enters the coffee bean. After that, the limiting plate 23 abuts against the fixing block 73, causing the gripping frame 76 to move laterally inside the coffee bean, thereby gripping more coffee beans. Then, as the gripping frame 76 moves upward, the limiting plate 23 first disengages from the fixing block 73, causing the two gripping frames 76 to move away from each other. Then, the swing plate 19 abuts against the stop bar 21, causing the gripping frame 76 to rotate and pour out the coffee beans. This avoids collisions during the rotation of the gripping frame 76.

[0040] See Figures 6-8 As shown, in this embodiment, preferably, a cylinder 24 is fixedly installed on the top of the fixed rod 8. A curved groove 241 is opened on the outer side of the cylinder 24. Limiting rods 25 are axially symmetrically fitted on both sides of the curved groove 241. The two limiting rods 25 are respectively fixedly connected to the moving blocks 13 on both sides on the side away from the curved groove 241. When the cylinder 6 rotates around the fixed rod 8, it will drive the limiting rods 25 to rotate around the curved groove 241 opened on the cylinder 24, thereby realizing the reciprocating movement of the moving blocks 13 on both sides in the vertical groove 61. Finally, the grabbing frame 76 moves up and down to grab and release coffee beans. Since the cylinder 6 is also rotating during the grabbing and releasing of coffee beans, the area of ​​the grabbed coffee beans is different, which can better ensure the uniformity of heat dissipation of coffee beans.

[0041] The working principle of this invention is as follows: The main unit 1 roasts coffee beans. The roasted coffee beans are poured onto the partition 5 of the cooling frame 4. The partition 5 has multiple ventilation holes 51, which can expel the heat emitted by the coffee beans more quickly and accelerate the cooling efficiency. The motor of the cylinder 6 is started, and the cylinder 6 rotates around the fixed rod 8. The rotation of the cylinder 6 will drive the rotating rod 10 and the stirring rod 11 to rotate synchronously. The rotation of the rotating rod 10 and the stirring rod 11 in the cooling frame 4 can stir the coffee beans, making the coffee beans loose and expelling some of the heat. In addition, during the rotation of the rotating rod 10, the second bevel gear 12 will rotate around the first bevel gear 9. The second bevel gear 12 will also rotate on its own axis during the revolution, thus driving the rotation. The rotation of rod 10 drives the rotation of stirring rod 11, further enhancing the stirring effect on coffee beans and accelerating heat dissipation. Simultaneously, the rotation of cylinder 6 around fixed rod 8 causes limiting rod 25 to rotate around the curved groove 241 of cylinder 24, thus enabling the moving blocks 13 on both sides to move up and down within the vertical groove 61. When the gripping frame 76 is at its highest point, the stop rod 21 is in contact with the swing plate 19, and the gripping frame 76 is tilted. When the gripping frame 76 moves downwards, the fixed plate 71 and fixed block 73 also move downwards. When the gripping frame 76 reaches the depth of the coffee beans, the fixed block 73, during its descent, contacts the limiting plate 23, causing the fixed block 73 to move upwards, thereby driving the moving rod 72. As the moving rod 72 moves upward, the positioning spring 22 compresses, causing the fixed block 73 to move upward. The upward movement of the fixed block 73 causes the rotating plate 74 to rotate, which in turn causes the moving plates 75 on both sides to move closer together along the fixed plate 71. This closer movement of the moving plates 75 causes the gripping frames 76 to move closer together deep within the coffee bean, allowing more coffee beans to be gripped. Subsequently, the fixed plate 71, fixed block 73, and gripping frames 76 move upward. During this upward movement, the fixed block 73 loses the contact of the limiting plate 23, and under the action of the positioning spring 22, it causes the moving rod 72 and fixed block 73 to move downward. This causes the fixed block 73 to move downwards, which in turn causes the rotating plate 74 to rotate in the opposite direction, thus moving the two moving plates 75 away from each other. The two gripping frames 76 also move away from each other. The coffee beans in the gripping frames 76 move upwards, allowing them to fully contact the surrounding air and enabling heat to be transferred to the air more quickly, thereby accelerating the cooling process. Subsequently, during the upward movement, the swing plate 19 will abut against the stop bar 21, causing the swing plate 19 to rotate. The rotation of the swing bar will eventually cause the gripping frames 76 to rotate, thus pouring out the coffee beans. During this process, the torsion spring 20 will torsionally store energy. After all the coffee beans in the gripping frames 76 have been poured out, it will move downwards again to go deeper into the coffee bean area. As the swing plate 19 moves downwards, it will gradually lose contact with the stop bar 21.The torsion spring 20 will cause the gripping frame 76 to rotate back to its initial state, facilitating subsequent gripping of coffee beans.

Claims

1. A coffee roaster, comprising a main unit (1), characterized in that, A cooling frame (4) is fixedly installed on one side of the main unit (1). A partition (5) is fixedly installed inside the cooling frame (4). Multiple ventilation holes (51) are provided on the partition (5). A feeding trough (52) is provided on the partition (5). A slot (41) is provided on one side of the cooling frame (4). A feeding frame (2) is fixedly installed inside the slot (41). A cover plate (3) is movably snapped onto the feeding trough (52). The feeding frame (2) is located below the feeding trough (52). A cylinder (6) is movably inserted through the center of the partition (5). A gripping component (7) capable of grabbing and throwing coffee beans is provided on one side of the cylinder (6). The gripping component (7) includes a fixing plate (71). A movable rod (72) is provided through the center of the cylinder (6). A fixed block (73) is fixedly provided on the side of the movable rod (72) away from the fixed plate (71). Rotating plates (74) are axially symmetrically arranged on both sides of the fixed block (73). A movable plate (75) is rotatably connected on the side of the rotating plate (74) away from the fixed block (73). The top of the movable plate (75) is slidably connected to the fixed plate (71). A gripping frame (76) is movably connected to the bottom of the movable plate (75). Multiple gaps (77) are opened on the outer side of the gripping frame (76). A fixed rod (8) is provided through the center of the cylinder (6). The bottom of the fixed rod (8) is fixedly connected to the cooling frame (4). A fixed sleeve is fixedly fitted on the outer side of the fixed rod (8). A first bevel gear (9) is provided. Rotating rods (10) are axially symmetrically arranged on both sides of the cylinder (6). Multiple stirring rods (11) are fixedly arranged on the outer side of the rotating rods (10). The end of the rotating rod (10) away from the stirring rods (11) is located inside the cylinder (6) and the end is fixedly arranged with a second bevel gear (12). The second bevel gear (12) meshes with the first bevel gear (9). Vertical grooves (61) are axially symmetrically opened on both sides of the cylinder (6). Moving blocks (13) are slidably embedded in the vertical grooves (61). A connecting rod (14) is fixedly arranged on the side of the moving block (13) away from the cylinder (6). The other end of the connecting rod (14) is fixedly connected to the fixed plate (71). The moving block (13) is fixedly connected with the cylinder (6) on the side away from the cylinder (6). 3) A return spring (15) is fixedly installed between the bottom of the bottom and the bottom of the vertical groove (61). A fixed frame (16) is fixedly installed at the bottom of the movable plate (75). A movable rod (17) is rotatably installed between the fixed frames (16). Two positioning plates (18) are fixedly sleeved on the outside of the movable rod (17). The end of the positioning plate (18) away from the movable rod (17) is fixedly connected to the gripping frame (76). One end of the movable rod (17) movably passes through one side of the fixed frame (16) and a swing plate (19) is fixedly installed at the end. A torsion spring (20) is fixedly installed between the two positioning plates (18) and the fixed frame (16) on the side away from each other. The movable rod (17) is movably installed inside the torsion spring (20).A stop bar (21) is axially symmetrically fixed on the outer side of the cylinder (6). The stop bar (21) movably abuts against the swing plate (19). A cylinder (24) is fixedly fixed on the top of the fixed rod (8). A curved groove (241) is opened on the outer side of the cylinder (24). Limiting rods (25) are axially symmetrically fitted on both sides of the curved groove (241). The two limiting rods (25) are fixedly connected to the moving blocks (13) on both sides respectively on the side away from the curved groove (241).

2. The coffee roaster according to claim 1, characterized in that, A positioning spring (22) is fixedly provided between the fixed block (73) and the fixed plate (71). The positioning spring (22) is movably sleeved on the outside of the moving rod (72). Limiting plates (23) are axially symmetrically provided on both sides of the cylinder (6). The limiting plates (23) are movably abutted against the fixed block (73).

3. A coffee roaster according to claim 2, characterized in that, The height of the limiting plate (23) is lower than the height of the stop bar (21).

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