TW202337334A - Coffee bean fluidized bed roasting device including an air inlet seat, a blower wheel assembly, an air inlet funnel and a bean discharging cover - Google Patents
Coffee bean fluidized bed roasting device including an air inlet seat, a blower wheel assembly, an air inlet funnel and a bean discharging cover Download PDFInfo
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- 235000010627 Phaseolus vulgaris Nutrition 0.000 title claims abstract description 84
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- 241000533293 Sesbania emerus Species 0.000 title claims abstract description 30
- 238000007599 discharging Methods 0.000 title abstract 8
- 230000008878 coupling Effects 0.000 claims abstract description 19
- 238000010168 coupling process Methods 0.000 claims abstract description 19
- 238000005859 coupling reaction Methods 0.000 claims abstract description 19
- 238000007667 floating Methods 0.000 claims description 20
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- 230000007246 mechanism Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 244000013123 dwarf bean Species 0.000 description 1
- 235000021331 green beans Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/083—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting with stirring, vibrating or grinding devices
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
- A23N12/12—Auxiliary devices for roasting machines
- A23N12/125—Accessories or details
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Abstract
Description
本發明係涉及一種烘焙裝置,尤指一種用熱風對咖啡豆進行吹拂之烘焙裝置。The present invention relates to a roasting device, in particular to a roasting device that uses hot air to blow coffee beans.
現代人對於飲用咖啡的風味日趨講究,而決定咖啡風味的主要因素之一在於運用烘豆機對生豆的烘焙方式,現有技術的烘豆機例如TW M612536之浮風式烘豆機之風壓增益機構,其包含一烘焙筒與一熱源機構,烘焙筒包含一底座與一筒體,底座頂側設有一盛豆件,盛豆件上貫穿有複數熱風口,熱源機構連接底座,提供熱風輸入底座,風壓增益機構為一擋板,其設置於盛豆件下方位於熱源機構連接底座位置之一側,熱風由熱源機構吹入,經由風壓增益機構的導引產生迴旋流動,並自熱風口吹動盛豆件上之豆子,使熱風口吹出之熱風令全部之豆子均可飄浮、翻動而均勻受熱。Modern people are becoming more and more particular about the flavor of coffee, and one of the main factors that determines the flavor of coffee is the roasting method of green beans using a roaster. The wind pressure of existing roasters such as the TW M612536 floating air roaster The gain mechanism includes a baking cylinder and a heat source mechanism. The baking cylinder includes a base and a cylinder. There is a bean holding part on the top side of the base. The bean holding part is penetrated by a plurality of hot air outlets. The heat source mechanism is connected to the base to provide hot air input. The base, the wind pressure gain mechanism is a baffle, which is arranged below the bean holding part on one side of the position where the heat source mechanism is connected to the base. The hot air is blown in by the heat source mechanism, and is guided by the wind pressure gain mechanism to generate a swirling flow, and from the hot air Blow the beans on the bean container with your mouth, so that the hot air blown from the hot air outlet can make all the beans float, flip and be heated evenly.
然而,前述之烘豆機因為其導入之熱風於底座流動時,為自然進氣的方式移動,故在迴旋流動的過程中,因為熱風首先會撞擊擋板,再加上流動路徑的增加,進而增進了熱風流動時的摩擦阻力,使得整體熱風動力減少而降低了熱風口吹出的風量,故還是會產生豆子的浮力不足及受熱不均之現象;因此,現有技術的烘豆機,其整體構造存在有如前述的問題及缺點,實有待加以改良。However, the aforementioned roaster moves in a natural air intake manner when the hot air it introduces flows through the base. Therefore, during the swirling flow process, the hot air will first hit the baffle. In addition, the flow path increases, and then The frictional resistance during the flow of hot air is increased, which reduces the overall hot air power and reduces the air volume blown out of the hot air outlet. Therefore, the beans will still have insufficient buoyancy and uneven heating. Therefore, the overall structure of the prior art roasting machine There are problems and shortcomings as mentioned above, which need to be improved.
有鑒於現有技術的不足,本發明提供一種咖啡豆浮風烘焙裝置,其藉由於進風座設置風輪組件,且於進風漏斗貫穿有出風口,達到可吹出加壓且具渦流熱風之目的。In view of the shortcomings of the existing technology, the present invention provides a coffee bean floating air roasting device, which achieves the purpose of blowing out pressurized and vortex hot air by providing a wind wheel assembly on the air inlet seat and an air outlet running through the air inlet funnel. .
為達上述之發明目的,本發明所採用的技術手段為設計一種咖啡豆浮風烘焙裝置,其包含: 一進風座,其包含一導風腔及一下豆基座,該導風腔具有一底面及一環壁面且圍繞形成有一內部空間及與該內部空間連通的一進風孔及一上結合孔,該進風孔位於該導風腔的該環壁面,該上結合孔位於該導風腔的上方,該下豆基座為一中空柱狀體且內部形成有一支撐部及複數下豆通道,該支撐部貫穿有一通孔,該通孔與各該下豆通道朝向該下豆基座的二端延伸,該下豆基座穿設固定於該導風腔的該底面,該通孔及各該下豆通道與該導風腔相連通; 一風輪組件,其可轉動地套設於該下豆基座; 一進風漏斗,其相對的二端分別為一進風部及一下結合部,該進風部貫穿有複數出風口,各該出風口形成複數組間隔排列,該下結合部圍繞形成有一結合口,該進風漏斗穿設於該進風座的該上結合孔並固定於該上結合孔周緣; 一下豆蓋,其包含一蓋體及一支柱,該支柱穿設於該通孔且一端固設於該蓋體,該蓋體蓋設於該下豆基座; 一下豆連桿組件,其設置於該導風腔的下方,該下豆連桿組件的一端連接於該支柱的另一端。 In order to achieve the above-mentioned object of the invention, the technical means adopted in the present invention is to design a coffee bean floating air roasting device, which includes: An air inlet seat, which includes an air guide cavity and a lower bean base. The air guide cavity has a bottom surface and an annular wall surface and is surrounded by an internal space and an air inlet hole and an upper combination hole connected to the internal space. The air inlet hole is located on the annular wall surface of the air guide cavity, the upper coupling hole is located above the air guide cavity, the lower bean base is a hollow columnar body with a support portion and a plurality of lower bean channels formed inside. The support part runs through a through hole, and the through hole and each of the lower bean channels extend toward the two ends of the lower bean base. The lower bean base is penetrated and fixed on the bottom surface of the air guide cavity. The through hole and each of the lower bean channels The lower bean channel is connected with the air guide cavity; A wind wheel assembly, which is rotatably mounted on the lower bean base; An air inlet funnel, with two opposite ends respectively being an air inlet part and a lower joint part. The air inlet part is penetrated by a plurality of air outlets, and each of the air outlets forms a plurality of groups arranged at intervals. The lower joint part is surrounded by a combination port. , the air inlet funnel is passed through the upper combination hole of the air inlet seat and fixed to the periphery of the upper combination hole; A lower bean cover, which includes a cover body and a pillar, the pillar is passed through the through hole and one end is fixed on the cover body, and the cover body is mounted on the lower bean base; A lower bean connecting rod assembly is arranged below the air guide cavity, and one end of the lower bean connecting rod assembly is connected to the other end of the pillar.
進一步而言,所述之咖啡豆浮風烘焙裝置,其中該風輪組件包含一風輪本體、一結合環、一軸承及複數鎖固件,該風輪本體的一側面貫穿有複數固定孔,該結合環為一環形體,其一側面貫穿有複數螺孔,該軸承套設固定於該下豆基座並位在該底面,該風輪本體藉由各該鎖固件穿設於該固定孔並鎖固於該螺孔,該結合環的內環面套設固定於該軸承的外環面。Furthermore, in the coffee bean floating air roasting device, the wind wheel assembly includes a wind wheel body, a coupling ring, a bearing and a plurality of locking parts, and a plurality of fixing holes are penetrated through one side of the wind wheel body, and the The coupling ring is an annular body with a plurality of screw holes penetrating through one side of it. The bearing sleeve is fixed on the lower bean base and is located on the bottom surface. The wind wheel body is penetrated through the fixing holes and locked by each locking piece. Fixed in the screw hole, the inner ring surface of the coupling ring is sleeved and fixed on the outer ring surface of the bearing.
進一步而言,所述之咖啡豆浮風烘焙裝置,其中該進風部為中空環形錐面,各該組的各該出風口排列形成一弧狀,各該出風口分布的範圍大於該進風部環形錐面之面積的一半。Furthermore, in the coffee bean floating air roasting device, the air inlet is a hollow annular conical surface, the air outlets of each group are arranged in an arc shape, and the distribution range of each air outlet is larger than the air inlet. Half the area of the circular cone.
進一步而言,所述之咖啡豆浮風烘焙裝置,其進一步包含一溫度感測棒,該溫度感測棒固設於該蓋體且鄰近於該進風漏斗的一側面。Furthermore, the coffee bean floating air roasting device further includes a temperature sensing rod, which is fixed on the cover and adjacent to one side of the air inlet funnel.
進一步而言,所述之咖啡豆浮風烘焙裝置,其中該下豆連桿組件包含一固定架、一驅動裝置、一連接桿及一導引桿,該固定架的一端設置於該導風腔,該驅動裝置具有一驅動軸,該驅動裝置設置於該固定架的另一端,該連接桿的一端固設於該驅動軸,該導引桿貫穿有一長孔,該長孔沿該導引桿的二端延伸,該連接桿的另一端連接位於該導引桿的該長孔,該導引桿的一端固設於該支柱的另一端。Furthermore, in the coffee bean floating air roasting device, the lower bean link assembly includes a fixed frame, a driving device, a connecting rod and a guide rod, and one end of the fixed frame is arranged in the air guide cavity. , the driving device has a driving shaft, the driving device is arranged at the other end of the fixed frame, one end of the connecting rod is fixed on the driving shaft, the guide rod passes through a long hole, and the long hole runs along the guide rod Two ends of the connecting rod extend, the other end of the connecting rod is connected to the long hole located on the guide rod, and one end of the guide rod is fixed on the other end of the pillar.
進一步而言,所述之咖啡豆浮風烘焙裝置,其進一步包含一上墊圈,該上結合孔的內周緣環繞凸設有一上結合部,該上墊圈設置於該上結合部,該進風漏斗以其該進風部的外周壁抵靠於該上墊圈。Furthermore, the coffee bean floating air roasting device further includes an upper gasket, an upper coupling portion is protruding around the inner periphery of the upper coupling hole, the upper gasket is disposed on the upper coupling portion, and the air inlet funnel The outer peripheral wall of the air inlet portion is against the upper gasket.
進一步而言,所述之咖啡豆浮風烘焙裝置,其中該進風部為漸縮狀的環形錐面,各組的各該出風口排列形成一S型,各該出風口分布的範圍大於該進風部環形錐面之面積的一半Furthermore, in the coffee bean floating air roasting device, the air inlet is a tapered annular conical surface, the air outlets of each group are arranged to form an S shape, and the distribution range of each air outlet is larger than the Half the area of the annular conical surface of the air inlet
本發明的優點在於,藉由熱空氣導入導風腔內,導入之熱空氣經由撞擊風輪本體的葉片使風輪本體旋轉並產生渦輪增壓效果,而咖啡生豆因為從底部被熱空氣吹拂,因此達到均勻烘焙之功效,相較於現有技術以純自然進氣加熱之方式,具有較佳之懸浮效果,增進烘豆效率,且外部輸入熱空氣之輸送裝置不需額外增加功率,可達到省電之功效。The advantage of the present invention is that by introducing hot air into the air guide cavity, the introduced hot air makes the rotor rotate by hitting the blades of the rotor body and generates a turbocharging effect, while the green coffee beans are blown by the hot air from the bottom. Therefore, the effect of uniform roasting is achieved. Compared with the existing technology of pure natural air intake heating, it has a better suspension effect and improves the efficiency of roasting beans. Moreover, the external hot air input conveyor does not require additional power, which can save electricity. The effect.
以下配合圖式以及本發明之較佳實施例,進一步闡述本發明為達成預定發明目的所採取的技術手段。The technical means adopted by the present invention to achieve the intended invention purpose will be further described below with reference to the drawings and preferred embodiments of the present invention.
請參閱圖1及圖3所示,本發明之咖啡豆浮風烘焙裝置,其包含一進風座10、一風輪組件20、一進風漏斗30、一下豆蓋40及一下豆連桿組件50。Please refer to Figures 1 and 3. The coffee bean floating air roasting device of the present invention includes an
請參閱圖3及圖4所示,進風座10包含一導風腔11及一下豆基座12,導風腔11具有一底面111及一環壁面112且圍繞形成有一內部空間及與內部空間連通的一進風孔113及一上結合孔114,進風孔113位於導風腔11的環壁面112所延伸而出的管體的開口位置,進風孔113的出口方向朝向導風腔11內的一側邊,上結合孔114的內周緣環繞凸設有一上結合部115,但不以此為限,導風腔11之形式可依使用者需求作改變。Please refer to Figures 3 and 4. The
下豆基座12為一中空柱狀體且內部形成有一支撐部121及複數下豆通道122,支撐部121成形於中空柱狀體內且貫穿有一通孔123,通孔123朝向下豆基座12的二端延伸,支撐部121將中空柱狀體內分隔成相對的兩下豆通道122,各下豆通道122朝向下豆基座12的二端延伸,但不以此為限,支撐部121及下豆通道122之形式可依使用者需求作改變,下豆基座12穿設固定於導風腔11的底面111,通孔123及各下豆通道122與導風腔11的內部空間相連通。The
風輪組件20包含一風輪本體21、一結合環22及一軸承23,風輪本體21具有複數葉片,其為現有技術之制式元件,其細部構造不再贅述,風輪本體21的一側面貫穿有複數固定孔211,結合環22為一環形體,其一側面貫穿有複數螺孔,軸承23套設固定於下豆基座12並位在底面111,風輪本體21藉由複數鎖固件穿設於每一固定孔211並鎖固於結合環22的每一螺孔,結合環22的內環面套設固定於軸承23的外環面,風輪本體21藉由軸承23可相對於下豆基座12轉動,但不以此為限,風輪組件20的形式可依使用者需求作改變。The
請參閱圖3至圖5所示,進風漏斗30相對的二端分別為一進風部31及一下結合部32,進風部31為中空環形錐面且貫穿有複數出風口311,各出風口311成組間隔排列,前述之成組所指為各出風口311排列形成一弧狀之型態為一組,在本實施例中,各出風口311分布的範圍約略大於進風部31環形錐面之面積的一半,但不以此為限,各出風口311之形式可依使用者需求作改變,在其他實施例中,每組的各出風口311亦可排列為S型(圖式中未示);下結合部32圍繞形成有一結合口321,結合口321與各出風口311相連通,進風漏斗30穿設固定於進風座10的上結合孔114,在較佳之實施例中,進一步包含一上墊圈33及一下墊圈34,上墊圈33設置於進風座10的上結合部115,進風漏斗30以其進風部31的外周壁抵靠於上墊圈33並固定於上結合部115,下墊圈34設置於下豆基座12的支撐部121的上方,進風漏斗30以其下結合部32抵靠於下墊圈34,其固定方式為現有技術故不再贅述,但不以此為限,亦可不設置上墊圈33及下墊圈34。Please refer to Figures 3 to 5. The two opposite ends of the
下豆蓋40包含一蓋體41、一支柱42及一溫度感測棒43,蓋體41蓋設於下豆基座12的一端,支柱42穿設於通孔123且一端固設於蓋體41,溫度感測棒43固設於蓋體41鄰近於進風漏斗30的一側面,且溫度感測棒43電性連接外部溫度顯示裝置(圖式中未示),溫度感測棒43為現有技術之制式元件,其細部構造不再贅述。The
請參閱圖2及圖4所示,下豆連桿組件50包含一固定架51、一驅動裝置52、一連接桿53及一導引桿54,固定架51的一端設置於導風腔11,驅動裝置52為馬達且具有一驅動軸521,其設置於固定架51的另一端,連接桿53的一端固設於驅動裝置52的驅動軸521,導引桿54貫穿有一長孔541,長孔541沿導引桿54的二端延伸,連接桿53的另一端連接位於導引桿54的長孔541且可沿長孔541位移,導引桿54的一端固設於支柱42的另一端。Please refer to Figures 2 and 4. The lower
請參閱圖3及圖5所示,本發明使用時,可配合具有一置豆管60之烘豆機台(圖式中未示)組設使用,置豆管60為一中空管體且一端直立固定於進風座10,另一端連接一排風設備(圖式中未示),但不以此為限,亦可不設置置豆管60而直接使用,進風管的一端連接導風腔11的進風孔113相連通,進風管的另一端連接一熱風設備(圖式中未示);使用者將欲烘培之咖啡生豆倒入置豆管60中,使得咖啡生豆堆疊於進風漏斗30上,再利用熱風設備將熱空氣經由進風管導入導風腔11內,導入之熱空氣經由撞擊風輪本體21的葉片使風輪本體21旋轉並產生渦輪增壓效果,使得熱空氣旋轉而上,從各出風口311吹出再經由排風設備排出,而咖啡生豆因為從底部被熱空氣吹拂,因此產生浮力於置豆管60中浮動達到均勻烘焙之功效,相較於現有技術以純自然進氣加熱之烘豆機,具有較佳之懸浮效果,增進烘豆效率,且外部輸入熱空氣之輸送裝置不需額外增加功率,可達到省電之功效,烘焙完成之咖啡熟豆可經由下豆連桿組件50的驅動裝置52驅動連接桿53及導引桿54,將支柱42往上抵頂使得下豆蓋40往上位移開啟下豆通道122,咖啡熟豆即可經由下豆通道122排出至外部。Please refer to Figures 3 and 5. When the present invention is used, it can be used in combination with a roasting machine (not shown in the figures) having a
前述過程中,當每組出風口311排列為S型時,所吹出的熱空氣可產生渦漩效應,更可提升咖啡生豆的懸浮效果。During the aforementioned process, when each group of
以上所述僅是本創作之較佳實施例而已,並非對本創作做任何形式上的限制,雖然本創作已以較佳實施例揭露如上,然而並非用以限定本創作,任何所屬技術領域中具有通常知識者,在不脫離本創作技術方案的範圍內,當可利用上述揭示的技術內容作出些許更動或修飾作為等同變化的等效實施例,但凡是未脫離本創作技術方案的內容,依據本創作的技術實質對以上實施例所做的任何簡單修改、等同變化與修飾,均仍屬於本創作技術方案的範圍內。The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed above in terms of preferred embodiments, it is not intended to limit the present invention. Any technical field that has A person with ordinary knowledge, without departing from the scope of the technical solution of this invention, can use the technical content disclosed above to make some changes or modifications as equivalent embodiments of equivalent changes. However, any content that does not deviate from the technical solution of this invention shall be based on this invention Technical Essence of Creation Any simple modifications, equivalent changes, and modifications made to the above embodiments still fall within the scope of the technical solution of this creation.
10:進風座 11:導風腔 111:底面 112:環壁面 113:進風孔 114:上結合孔 115:上結合部 12:下豆基座 121:支撐部 122:下豆通道 123:通孔 20:風輪組件 21:風輪本體 211:固定孔 22:結合環 23:軸承 30:進風漏斗 31:進風部 311:出風口 32:下結合部 321:結合口 33:上墊圈 34:下墊圈 40:下豆蓋 41:蓋體 42:支柱 43:溫度感測棒 50:下豆連桿組件 51:固定架 52:驅動裝置 521:驅動軸 53:連接桿 54:導引桿 541:長孔 60:置豆管 10: Air inlet seat 11: Air guide cavity 111: Bottom surface 112: Ring wall surface 113:Air inlet 114: Upper binding hole 115: Upper joint 12:Bean placing base 121: Support part 122: Bean dropping channel 123:Through hole 20:Wind wheel assembly 21:Wind wheel body 211:Fixing hole 22: binding ring 23:Bearing 30:Air inlet funnel 31: Air inlet part 311:Air outlet 32: Lower joint 321:Combining port 33: Upper gasket 34:Lower gasket 40: Put on the bean cover 41: Cover 42:Pillar 43: Temperature sensing rod 50: Lower bean connecting rod assembly 51:fixed frame 52:Driving device 521: Drive shaft 53:Connecting rod 54:Guide rod 541: long hole 60:Place bean tube
圖1係本發明之立體外觀圖。 圖2係本發明之另一角度立體外觀圖。 圖3係本發明之分解圖。 圖4係本發明之另一角度分解圖。 圖5係本發明之剖面圖。 Figure 1 is a three-dimensional appearance view of the present invention. Figure 2 is a three-dimensional appearance view of the present invention from another angle. Figure 3 is an exploded view of the present invention. Figure 4 is an exploded view from another angle of the present invention. Figure 5 is a cross-sectional view of the present invention.
10:進風座 10: Air inlet seat
112:環壁面 112: Ring wall surface
113:進風孔 113:Air inlet
114:上結合孔 114: Upper binding hole
30:進風漏斗 30:Air inlet funnel
31:進風部 31: Air inlet part
311:出風口 311:Air outlet
40:下豆蓋 40: Put on the bean cover
41:蓋體 41: Cover
42:支柱 42:Pillar
43:溫度感測棒 43: Temperature sensing rod
50:下豆連桿組件 50: Lower bean connecting rod assembly
51:固定架 51:fixed frame
52:驅動裝置 52:Driving device
53:連接桿 53:Connecting rod
54:導引桿 54:Guide rod
541:長孔 541: long hole
Claims (10)
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CN202210497678.XA CN116849373A (en) | 2022-03-28 | 2022-05-09 | Coffee bean air-floating baking device |
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TW111111749A TWI820654B (en) | 2022-03-28 | 2022-03-28 | Coffee bean floating air roasting device |
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US5564331A (en) * | 1994-11-03 | 1996-10-15 | Imex Corporation Ltd. | Apparatus for roasting coffee beans |
KR100264356B1 (en) * | 1998-02-12 | 2000-08-16 | 송유진 | A coffee bean roaster |
CN210143789U (en) * | 2019-04-19 | 2020-03-17 | 陈华 | Coffee bean roasting machine |
CN110959879A (en) * | 2019-10-14 | 2020-04-07 | 陈羡 | Household bean drying machine |
CN211910467U (en) * | 2020-02-24 | 2020-11-13 | 金文� | Roasting equipment for coffee beans |
TWM612536U (en) * | 2020-12-01 | 2021-06-01 | 李繼民 | Air pressure gain mechanism of air-floating type bean roaster |
TWM629578U (en) * | 2022-03-28 | 2022-07-11 | 智易能系統股份有限公司 | Coffee bean floating air roasting device |
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