TWI699167B - Roasting cylinder of coffee bean roasting machine - Google Patents

Abstract

A roasting cylinder of a coffee bean roasting machine, comprising a cylinder body, an end plate and a plurality of baffles, the end plate is combined with one end of the cylinder body; the end plate has a plurality of through holes, and the through holes communicate with the cylinder Inside and outside the body, each of the through holes is elongated and extends along the radial direction of the end plate; and the deflector is connected to the end plate, and the deflectors are respectively located on one side of the through holes, by The flow is guided by the deflector to accelerate the gas flow in the roasting cylinder of the coffee bean roaster.

Description

Roasting cylinder of coffee bean roasting machine

The invention relates to a roasting drum of a coffee bean roasting machine; in particular, it refers to a roasting drum with a deflector.

It is known that coffee bean roasters are used to roast green coffee beans. Since green coffee beans produce a lot of coffee crumbs during the roasting process, the coffee bean roasters are usually equipped with an exhaust device to The coffee bean crumbs are discharged, and the exhaust device of the coffee bean roaster also has the function of adjusting the roasting temperature by controlling the airflow.

The conventional coffee bean roasting machine usually includes a roasting drum, a heating device, a driving device, and an exhaust device. The roasting drum is used for accommodating green coffee beans, and the heating device is arranged under the roasting drum for The green coffee beans are heated, the driving device is used to drive the roasting drum to rotate, so that the green coffee beans in the roasting drum are evenly heated, and the exhaust device, such as an exhaust fan, is used to exhaust the air inside the coffee bean roaster.

Although the aforementioned coffee bean roasting machine can achieve the purpose of roasting green coffee beans, it still has its shortcomings. For example, the coffee bean roasting machine only uses an exhaust fan to exhaust the air, which inevitably has the disadvantage of not being able to quickly divert the air. Therefore, the exhaust device must be improved.

In view of this, the object of the present invention is to provide a roasting drum of a coffee bean roasting machine, which can accelerate the flow of airflow.

In order to achieve the above object, the present invention provides a roasting cylinder for a coffee bean roasting machine, which includes a cylinder, an end plate, and a plurality of baffles, the end plate is coupled to one end of the cylinder; wherein, the end plate There are a plurality of through holes, the through holes communicate with the inside and outside of the cylinder, each through hole is elongated and extends along the radial direction of the end plate; and the baffles are connected to the end plate, and The baffles are respectively located on one side of the through holes.

The effect of the present invention is to accelerate the flow of gas in the roasting cylinder of the coffee bean roaster through the diversion of the deflector.

〔this invention〕

1: Coffee bean roasting machine

10: Baking drum

100: cylinder

102: end plate

102a: surface

110: Through hole

110a: first long side

110b: second long side

112: deflector

112a: Long side

112b: diversion surface

114: card slot

116: protruding piece

118: first through hole

120: second through hole

122: first guide vane

124: second guide vane

126: Center Point

20: heating device

30: Drive

40: Exhaust device

D1: first distance

D2: second distance

θ: Angle

Fig. 1 is a perspective view of a roasting cylinder of a coffee bean roasting machine according to a first preferred embodiment of the present invention.

Figure 2 is an exploded view of the baking drum of the first preferred embodiment.

Fig. 3 is a perspective view of the baking drum in another direction of the first preferred embodiment.

Figure 4 is a front view of the end plate of the first preferred embodiment.

Fig. 5 is a schematic partial cross-sectional view of 5-5 in Fig. 1.

Fig. 6 is a schematic cross-sectional view of the coffee bean roasting machine of the first preferred embodiment.

Fig. 7 is a schematic diagram, revealing that the rotation of the baking drum drives the baffle to guide the airflow.

Fig. 8 is a perspective view of a roasting cylinder of a coffee bean roasting machine according to a second preferred embodiment of the present invention.

In order to explain the present invention more clearly, a few preferred embodiments are listed in detail in conjunction with the drawings as follows. Please refer to FIGS. 1 to 5 for a baking cylinder 10 according to a first preferred embodiment of the present invention, which includes a cylinder body 100 and an end plate 102, and the end plate 102 is coupled to one end of the cylinder body 100. Wherein, the end plate 102 has a plurality of through holes 110 and a plurality of guide fins 112, and these through The holes 110 communicate with the inside and the outside of the cylinder 100, and each of the through holes 110 is elongated and extends along the radial direction of the end plate 102; the guide fins 112 are connected to the end plate 102, and the guides The sheets 112 are respectively located on one side of the through holes 110, so that gas can flow between the inside and outside of the cylinder 100 through the through holes 110.

In this embodiment, the end plate 102 is a circular plate, the cylinder 100 is a circular cylinder, and one end edge of the cylinder 100 has a plurality of grooves 114, and the end plate 102 has a plurality of The protrusions 116 are matched with the grooves 114, so the protrusions 116 of the end plate 102 can be engaged with the grooves 114 of the barrel 100, which has the effect of facilitating positioning. The end plate 102 is fixedly connected to the cylinder 100, for example, by welding. However, in other embodiments, it is not excluded that the end plate is detachably coupled to the barrel.

The end plate 102 and the guide fins 112 are integrally formed. In this way, the guide fin 112 can be firmly connected to the end plate 102 and is not easily separated from the end plate 102. In this embodiment, the end plate 102 and the guide plates 112 The flow sheet 112 is a plate body stamped and formed, and the end plate 102 and the guide sheets 112 do not need to be processed or connected or provided with additional connecting parts. In other embodiments, the end plate 102 and the guide sheets 112 The flow sheet 112 may also be connected by welding, or the flow guide sheet 112 may be fixed to the end plate 102 by a connecting member, and is not limited to the above-mentioned body shape.

As shown in FIG. 4, the periphery of each through hole 110 has a first long side and a second long side 110b opposite to each other, each of the guide vanes 112 is elongated and has two opposite long sides 112a, and each guide One of the long sides 112 a of the sheet 112 is connected to the first long side 110 a of the periphery of each through hole 110, and the long axis of each guide vane 112 is parallel to the long axis of each through hole 110. In this embodiment, the through hole 110 and the deflector 112 are both rectangular. In practice, it is not excluded that the through hole 110 and the deflector 112 have different shapes. For example, a semicircular deflector is combined with One side of the oval through hole, etc.

It is worth mentioning that the through holes 110 include a plurality of first through holes 118 and a plurality of second through holes 120, each of the first through holes 118 is located between the two second through holes 120, and each of the first through holes 118 The length of a through hole 118 is greater than the length of each of the second through holes 120, the guide vanes 112 include a plurality of first guide vanes 122 and a plurality of second guide vanes 124, each of the first guide vanes 122 The length of each is greater than the length of each of the second guide vanes 124, each of the first guide vanes 122 is coupled to the periphery of each of the first through holes 118, and each of the second guide vanes 124 is coupled to each of the second through holes The periphery of the end plate 120 and the through holes 110 are respectively arranged in different radial directions of the end plate 102. The end plate 102 has a central point 126, the shortest distance between each of the first through holes 118 and the central point 126 is a first distance D1, and the shortest distance between each of the second through holes 120 and the central point 126 is a second distance D2 , The length of the first distance D1 is less than the second distance D2, because each of the first through holes 118 and each of the second through holes 120 are staggered with each other at different distances from the center point 126, so they can be placed on the end plate 102 Providing a plurality of through holes 110 has the effect of effectively using the area of the end plate 102.

Please refer to FIG. 5, the end plate 102 has a surface 102a, the short axis of each guide vane 112 extends along one side of the surface 102a, and each guide vane 112 has a guide surface 112b facing each Through hole 110, the projection surface of baffle 112 on surface 102 a of end plate 102 covers part of through hole 110. An angle θ is formed between each guide surface 112b and the surface 102a, and the angle θ is between 35 and 55 degrees. The surface 102 a of the end plate 102 faces the inside of the cylinder 100, and the baffles 112 are located inside the cylinder 100.

Please refer to FIG. 6 again for a schematic diagram of the coffee bean roasting machine 1 having the above roasting drum 10. The coffee bean roasting machine 1 further includes a heating device 20, a driving device 30 and an exhaust device 40. The roasting drum 10 is used for containing Green coffee beans are placed and connected to the driving device 30. The heating device 20 is arranged under the roasting drum 10 to generate flames to heat the green coffee beans. The driving device 30 is used to drive the roasting drum 10 to rotate and roast Green coffee beans in tube 10 Evenly heated, the exhaust device 40 is used to exhaust the gas inside the coffee bean roasting machine 1, so when the roasting drum 10 contains green coffee beans, the driving device 30 drives the roasting drum 10 to rotate, so that the inside of the roasting drum 10 The raw coffee beans can be evenly heated.

At the same time, when the baking cylinder 10 rotates about the axis, the gas in the cylinder 100 is disturbed by the plurality of baffles 112 arranged on one side of the through hole 110 of the cylinder 100, so that the airflow is shown in FIG. The inside of the 100 is discharged to the outside through the through holes 110, and then the coffee bean roasting machine 1 is discharged from the exhaust device 40. Thereby, it is possible to accelerate the air flow to be discharged from the inside of the cylinder 100 through the through holes 110.

Please refer to FIG. 8 for a roasting drum 10 of a coffee bean roasting machine according to a second preferred embodiment of the present invention. The roasting drum 10 has substantially the same structure as the first preferred embodiment, except for the surface of the end plate 102 102a is opposite to the inside of the cylinder 100, and the baffles 112 are located outside the cylinder 100. It can also achieve the purpose of guiding the air flow when rotating, for example, the external air flow can be introduced into the cylinder 100.

In summary, the roasting drum of the coffee bean roasting machine of the present invention can effectively accelerate the flow of gas in the roasting drum of the coffee bean roasting machine through the diversion of the baffle.

The above are only the preferred and feasible embodiments of the present invention. Any equivalent changes made by applying the specification of the present invention and the scope of the patent application should be included in the patent scope of the present invention.

1: Coffee bean roasting machine

10: Baking drum

100: cylinder

102: end plate

110: Through hole

110a: first long side

110b: second long side

112: deflector

112a: Long side

112b: diversion surface

114: card slot

116: protruding piece

118: first through hole

120: second through hole

122: first guide vane

124: second guide vane

126: Center Point

Claims (10)

A roasting drum of a coffee bean roasting machine includes a drum body; and an end plate combined with one end of the drum body. The roasting drum is driven to rotate by a driving device; it is characterized in that the end plate has a plurality of through holes, The through holes communicate with the inside and the outside of the cylinder, and each through hole is elongated and extends along the radial direction of the end plate; and a plurality of baffles are connected to the end plate, and the baffles are respectively Located on one side of the through holes, wherein when the baking drum rotates, the baffles disturb and guide the air flow through the through holes. The roasting cylinder of the coffee bean roasting machine according to claim 1, wherein the end plate and the baffles are integrally formed. The roasting cylinder of a coffee bean roasting machine according to claim 2, wherein the periphery of each of the through holes has two opposite first and second long sides, and each of the guide vanes is long and has two opposite long sides , One of the long sides of each of the guide vanes is connected to the first long side of the periphery of each of the through holes. The roasting cylinder of a coffee bean roasting machine according to claim 3, wherein the end plate has a surface, the short axis of each guide vane extends along one side of the surface, and each guide vane has a guide surface Facing each of the through holes, each of the diversion surfaces forms an angle with the surface, and the angle is between 35 and 55 degrees. The roasting cylinder of the coffee bean roasting machine according to claim 4, wherein the surface of the end plate faces the inside of the cylinder, and the baffles are located inside the cylinder. The roasting cylinder of the coffee bean roasting machine according to claim 4, wherein the surface of the end plate faces away from the inside of the cylinder, and the baffles are located outside the cylinder. The roasting cylinder of a coffee bean roasting machine according to claim 3, wherein the through holes include a plurality of first through holes and a plurality of second through holes, and each of the first through holes is located at two of the second through holes And the length of each of the first through holes is greater than the length of each of the second through holes; the guide vanes include a plurality of first guide vanes and a plurality of second guide vanes, each of the first guide vanes The length of the sheet is greater than the length of each of the second guide vanes, each of the first guide vanes is coupled to the periphery of each of the first through holes, and each of the second guide vanes is coupled to the periphery of each of the second through holes. According to claim 7, the roasting cylinder of a coffee bean roasting machine, wherein the through holes are respectively arranged on different radial directions of the end plate. The roasting cylinder of a coffee bean roasting machine according to claim 7, wherein the end plate has a center point, the shortest distance between each of the first through holes and the center point is the first distance, and each of the second through holes and the center point The shortest distance of is the second distance, and the length of the first distance is less than the second distance. The roasting cylinder of the coffee bean roasting machine according to claim 1, wherein each of the guide vanes is elongated, and the long axis of each guide vane is parallel to the long axis of each through hole.

Images