TWM521901U - Baking machine - Google Patents

Description

Roaster

The present invention provides a roaster, especially a device that provides roasting of coffee beans.

Referring to FIG. 1 , a known coffee bean roaster structure is constructed. The roaster 10 includes a casing 12 , a drum 14 and an air extracting device 16 . The casing 12 is internally formed with a heating chamber. The circular cavity of 122 has a cylindrical tubular wall 124 and a first end 璧 126 and a second end wall 128. The first end 璧 126 provides an output arrangement of a motor 18 spindle 182 and has an air inlet 121. The second end cymbal 128 has an opening 125, and the opening 125 is assembled with a roller mounting plate 13 and a slidable discharge door 15, and the roller mounting plate 13 has a feeding port 132, the feeding The inlet 132 is connected to a feed pipe 134, and the feed pipe 134 is connected to the air extracting device 16 by an air guiding pipe 136 to form an air flow passage, so that the air extracting device 16 can exhaust the casing 12, and further, the heating chamber 122 There is a heating element 127 for heating the heating chamber 122; the drum 14 is received in the heating chamber 122 of the housing 12, and has a shaft 142 erected on the roller mounting plate 13 and can be received by the motor 18 The spindle 182 is driven to rotate, and the drum 14 internally defines a baking chamber 144 for the coffee beans to be accommodated, and The drum 14 has a discharge outlet 146 and is disposed toward the discharge door 15 for discharging the roasted coffee beans. The air extracting device 16 includes a casing 162 and a blower 164 installed in the casing 162. And a filter 168 disposed in the casing 162 and before the exhaust fan 164 draws in the wind inlet end A partition 166 is disposed on the casing 162. The air outlet 161 is coupled to the air duct 136 to form an air flow passage with the casing 12. Thus, when the heating element 127 preheats the heating chamber 122 and the drum 14 to an appropriate temperature, the upper end cover 138 of the feeding tube 134 is opened, and the green coffee beans are poured into the drum 14 for baking, and the exhaust fan of the air extracting device 16 is activated. 164 is exhausted, and the air flow of the exhaust air flows from the air inlet 121 of the casing 12 to the heating chamber 122 and the baking chamber 144, through the feeding pipe 134 and the air guiding pipe 136 to the air blowing device 16, so that the coffee can be brewed during the baking process. The bean skin is collected by the air duct 136 and collected into the sieve 168 of the partition 166 in the casing 162, and the airflow of the air can quickly bring out the moisture released during the baking of the coffee and the coke smell produced during the baking. .

The above-mentioned conventional coffee bean roasting apparatus performs the baking of the coffee beans by the suction fan 164 in the baking apparatus, and directly performs the airing of the coffee beans in the heating chamber 122 and the baking chamber 144, however, when the casing 12 is used. When the outside air enters the heating chamber 122, the external low temperature air will quickly affect the baking temperature in the heating chamber 122 to lower its temperature, so that the heating element 127 must increase its heating power or the exhaust fan 164 will lower its rotation speed. The flow rate of the draft airflow is slowed to maintain a preferred coffee bean baking temperature. Thus, the above-described conventional structure is not convenient in controlling the baking temperature of the coffee beans.

Accordingly, the primary object of the present work is to provide a structural improvement of the roaster that provides for pre-lifting of the temperature before the outside air enters the heating chamber to maintain and easily control the baking temperature of the heating chamber.

The specific structure and technical means for achieving the above purpose or other effects include a casing, a drum and an air extracting device; a heating chamber is formed inside the casing, and the heating chamber has a connection with the outside of the casing. An intake pipe that is operable to rotate And is disposed in the heating chamber, and the inside of the drum defines a baking chamber for the workpiece to be accommodated, and the drum has a discharge outlet for discharging the processed workpiece, and the air blowing device and the housing have The air flow passage is connected, and the air extracting device comprises a box body and an air blower installed in the box body, and the air blower can exhaust the casing.

In a preferred embodiment, the air suction device is provided with an air outlet, and the air outlet is connected to the air flow passage through the air duct, so that the air blower can exhaust the housing and the heating chamber. .

In one embodiment, the housing has a cylindrical tubular wall and a first end wall and a second end wall, wherein the first end wall has a through hole communicating with the outside of the housing, and the intake duct is engaged The through hole has an opening, the opening has a roller mounting plate and a slidable discharge door; and the roller mounting plate has a feeding port, the feeding port is connected A feed pipe is connected to the air duct to form an air flow passage, so that the air blower can exhaust the casing.

In one embodiment, the roaster further includes a plenum disposed at the air inlet of the intake pipe, and the plenum has a vent communicating with the exterior.

The roaster further includes at least one electric heater for heating the heating chamber and the drum, the electric heater being disposed between the inner wall of the casing and the outer wall of the drum and adjacent to the intake pipe.

Preferably, the electric heater is a two-legged U-shaped electric heater, and the intake pipe is disposed between the two ends of the electric heater.

In one embodiment, the roaster further includes a control device that controls the heating temperature of the heater and the amount of wind of the extraction device.

10‧‧‧Baker

12‧‧‧ housing

121‧‧‧Air inlet

122‧‧‧heating room

124‧‧‧The wall

125‧‧‧ openings

126‧‧‧ first end

127‧‧‧ heating element

128‧‧‧second end wall

13‧‧‧Roll mounting plate

132‧‧‧ Feed inlet

134‧‧‧ Feeding tube

136‧‧‧air duct

138‧‧‧Upper cover

14‧‧‧Roller

142‧‧‧ shaft

144‧‧ ‧ baking room

146‧‧‧Discharge exit

15‧‧‧draw gate

16‧‧‧Exhaust device

161‧‧‧Air outlet

162‧‧‧ cabinet

164‧‧‧Exhaust fan

166‧‧ ‧ partition

168‧‧‧ filter

18‧‧‧Motor

182‧‧‧ mandrel

20‧‧‧Baker

21‧‧‧The wall

22‧‧‧ foot stand

23‧‧‧First end wall

232‧‧‧Perforation

24‧‧‧Shell

242‧‧‧Slot room

244‧‧‧port

25‧‧‧ second end wall

252‧‧‧ openings

26‧‧‧heating elements

262‧‧‧ feet

27‧‧‧Collection container

30‧‧ ‧ baking room

302‧‧‧Discharge exit

31‧‧‧ side wall

312‧‧‧ venting holes

32‧‧‧Roller

34‧‧‧ drive

342‧‧‧ mandrel

344‧‧‧ pin

36‧‧‧Center shaft

362‧‧‧ Connecting rod

364‧‧‧ first end

366‧‧‧ second end

368‧‧‧ Combination slot

38‧‧‧ Guide

41‧‧‧Baffle

42‧‧‧Exhaust device

44‧‧‧ cabinet

442‧‧‧draw

444‧‧‧ openings

446‧‧‧ Cover

46‧‧‧Exhaust fan

48‧‧‧ Filter

51‧‧‧Ammonia

52‧‧‧Control device

54‧‧‧Power switch

56‧‧‧temperature adjustment button

58‧‧‧Air volume adjustment button

62‧‧‧Intake pipe

64‧‧‧ pole

66‧‧‧ screws

68‧‧‧through hole

71‧‧‧Sampling port

72‧‧‧Roll mounting plate

73‧‧‧Sampling

74‧‧‧ Feed inlet

76‧‧‧ Feeding tube

762‧‧‧Upper cover

78‧‧‧Temperature Sensor

82‧‧‧Double gate

84‧‧‧Hands

90‧‧ ‧ gas collection room

92‧‧‧ vent

94‧‧‧Outer cover

96‧‧‧Open slot

Figure 1 is a schematic cross-sectional view showing a conventional coffee bean roaster.

Figure 2 is a perspective view of the creation.

Figure 3 is a perspective view of another angle of the creation.

Figure 4 is a partial exploded view of the creation.

Figure 5 is a perspective exploded view of the creation.

Fig. 6 is a partially cutaway perspective view of the drum of the present invention.

Figure 7 is a top view of the creation.

Figure 8 is a cross-sectional view taken along line 8-8 of Figure 7.

Figure 9 is a cross-sectional view taken along line 9-9 of Figure 7.

Other objects, advantages and features of the present invention will be apparent from the following description of the preferred embodiments illustrated herein.

The present invention can be implemented in a variety of different configurations in accordance with the above technical features. The preferred structural content of the present invention will be described below with reference to the accompanying drawings. Referring to Figures 2 through 9, there is shown an embodiment according to the present invention. Coffee bean roaster 20, the roaster 20 includes a tripod 22, a casing 24 mounted on the leg frame 22, and a hollow cylinder 32 mounted in the casing 24 for heating the drum 32 At least one heating element 26, an air extracting device 42, and a control device 52.

In this embodiment, the housing 24 is mounted on the stand 22, and the inside of the housing 24 forms a circular cavity of the heating chamber 28, and the heating chamber 28 has an intake pipe communicating with the outside of the housing 24. 62, and the bottom of the housing 24 has a slot chamber 242 extending downwardly, one end of the slot chamber 242 An open port 244 is provided to provide a receptacle for receiving a collection container 27 for receiving debris from the roasting of the coffee falling from the housing 24; the housing 24 further comprising a cylindrical shape a tubular wall 21 and a first end wall 23 and a second end wall 25, the tubular wall 21 being fixed to the groove formed on the inner surface opposite to the first end wall 23 and the second end wall 25, the first end The wall 23 is disposed between the wall 23 and the second end wall 25 and is locked and fixed by the screw 66 by the plurality of posts 64. The set of the intake pipe 62 is set in the embodiment of the present embodiment. The third end wall is disposed on the inner surface of the first end wall 23, and the first end wall 23 has a through hole 68 matched with the air inlet tube to rive and fix the air inlet tube 62 to the first end wall. At the surface of 23 inside.

As shown in FIG. 5 , the first end wall 23 further includes a through hole 232 , and the second end wall 25 has an opening 252 , and the opening 252 is assembled with a roller mounting plate 72 and a discharge door 82 . The discharge door 82 can be opened or closed under the control of a handle 84. The roller mounting plate 72 has a feed port 74. The feed port 74 is connected with a feed pipe 76. The feed pipe is connected. 76 basically has an upper end cover 762 for cover; and a temperature sensor 78 with a thermometer attached to the roller mounting plate 72 for detecting the internal temperature of the roller 32, and the roller mounting plate 72 is further A baking state is included in which a sampling port 71 is provided to provide a sampling cassette 73 to receive the contents of the observation drum 32.

As shown in Fig. 6, the drum 32 is placed in the heating chamber 28 of the casing 24, and an inner space between the inner wall of the casing 24 and the outer wall of the drum 32 is provided. Referring to Fig. 9, the inside of the drum 32 defines a A torrefaction chamber 30 accommodating coffee beans, the roasting chamber 30 having a discharge outlet 302 at one end and in communication with the feed port 74 such that coffee beans to be roasted can be placed into the drum 32 from the feed tube 76, The baking chamber 30 has a side end wall 31 at the opposite end of the discharge outlet 302, and the side end wall 31 has a plurality of venting holes 312 extending through the wall surface; the drum 32 can be rotated by a driving device 34. So that the coffee beans can be uniformly heated in the drum 32; in the embodiment, the drum 32 is provided There is a central shaft 36 and a plurality of guide plates 38. The central shaft 36 is coupled to the inner wall of the drum 32 by a plurality of connecting rods 362, and the central shaft 36 has a first end 364 (inner end) and a first The second end 366 is pivotally connected to the roller mounting plate 72, and the first end 364 is coupled to the driving device 34.

In the present embodiment, the driving device 34 is a motor, and the spindle 342 of the motor 34 extends through the through hole 232 of the first end wall 23, and the front end of the spindle 342 has a through the mandrel 342. a pin 344, and the first end 364 of the central shaft 36 of the roller 32 has a coupling groove 368 formed by a notch recessed toward the end of the first end 364; when the motor spindle 342 When the front end is coupled with the first end 364 of the shaft 36 of the drum 32, the pin 344 is correspondingly inserted into the coupling groove 368, so that the drum 32 can be rotated by the motor 34. The plurality of guide plates 38 disposed in the drum 32 extend substantially in an inclined manner, so that the roasted coffee beans in the drum 32 can be uniformly stirred by the guide plates 38 when the drum 32 rotates, and the guide plates 38 are also It helps to discharge the roasted coffee beans in the drum 32.

In the present embodiment, the heating element 26 is an electric heater, and the heating element 26 and the intake pipe 62 are disposed between the inner wall of the casing 24 and the outer wall of the drum 32. When the heating element 26 is energized The heating chamber 28 and the drum 32 can be heated to roast the green coffee beans.

The air extracting device 42 includes a box body 44, a blower 46 installed in the box body 44, and a partition plate that is disposed in the box body 44 and is exhausted to the wind end of the air blower 46. The air extracting device 42 is connected to the drum 32 by an air flow passage. In the embodiment, an air vent 442 is disposed on the casing 44. The air vent 422 passes through an air duct 43 and the air inlet 43 The tube 76 is in communication such that the blower 46 can draw the drum 32.

In this embodiment, the top end of the box 44 has an opening 444, and the opening 444 It is covered by a cover 446 in normal times.

The control device 52 includes a power switch 54, a temperature adjustment knob 56 that controls the heating temperature of the heating element 26, an air volume adjustment knob 58 that controls the wind of the exhaust fan 46, and an ammeter 51 that can indicate the power level of the heating element 26. In the present embodiment, the control device 52 and the driving device 34 are disposed in the casing 44 of the air extracting device 42, that is, the air extracting device 42 and the control device 52 are designed to share the same casing 44. The structure of the roaster 20 is simplified; in this embodiment, the power switch 54 includes a timer such that the roaster 20 is automatically powered off after a selected time to increase the use of the roaster 20 safety.

The coffee bean roaster 20 formed according to the present invention is implemented by first heating the heating chamber 28 and the drum 32 of the casing 24 to a suitable temperature by using the heating element 26 (the wall of the intake pipe 62 will also be heated). Then, the upper end cover 762 of the feed pipe 76 is opened to pour the green coffee beans into the drum 32 for baking, and the exhaust fan 46 of the air extracting device 42 is activated to perform the air suction (the arrow in FIG. 9 shows the flow direction of the exhaust air), so that the baking process is performed. The coffee bean skin can be pumped through the air duct 43 to the filter screen 48 of the partition 41 in the casing 44 of the air extracting device 42; and when the baking is completed, the discharge door 82 can be opened and the drum 32 can be baked. The finished coffee beans are discharged and collected.

According to the creation of the coffee bean roaster 20, the external air entering the heating chamber 28 of the casing 24 can be pre-elevated by the pipe of the intake pipe 62 by the arrangement of the intake pipe 62. The temperature difference between the temperature of the external air entering the interior of the heating chamber 28 and the temperature inside the heating chamber 28 is not excessively different. Thus, the temperature inside the heating chamber 28 does not decrease drastically, and the present invention can be performed without increasing the output power of the heating element 26. The effective control of the baking temperature of the coffee beans, especially the improvement of the efficacy, has achieved the intended design purpose and implementation effect.

In addition, the intake pipe 62 is preferably adjacent to the heating element 26, thereby heating the element The member 26 can quickly raise the temperature of the wall of the intake pipe 62; in addition, the heating element 26 is a U-shaped electric heater having a two-legged end 262, and the intake pipe 62 is preferably provided by the two legs. Between the ends 262, the heating element 26 can quickly raise the temperature of the wall of the intake pipe 62.

Further, the housing 24 further includes a plenum 90 having a vent 92 at the air inlet of the intake pipe 62. Referring to FIG. 9, the plenum 90 is adjacent to the housing 24, When the heating element 26 in the housing 24 is heated, the heat energy generated in the housing 24 will be transferred to the plenum 90 after the housing 24 is heated, so that the plenum 90 enters the intake duct 62. The external air may be preheated in the plenum 90; in a preferred embodiment disclosed in the drawings, the plenum 90 includes a first end wall 23 of the housing 24 An outer casing 94 is formed to cover the outer casing 94. The outer casing 94 has an opening 96 to form the vent 92. The outer casing 94 abuts the casing 44 of the air extracting device 42 to form the plenum 90.

It is to be noted that the discharge outlet 302 of the drum 32 is adjacent to the second end wall 25, and the side end wall 31 of the drum 32 has a distance β between the first end wall 23, see Fig. 9, the distance amount β The value is greater than the distance between the discharge outlet 302 and the second end wall 25, and the distance β is between about 0.5 and 1.5 times the spacing α between the inner wall of the casing 24 and the outer wall of the drum 32; The large and small difference of the flow path causes the gas in the heating chamber 28 to flow into the baking chamber 30 through the venting holes 312 of the heating chamber 28 through the side end wall 31, and the feeding of the tube mounting plate 72. The port 74, the feed pipe 76 and the air duct 43 are taken out.

In the foregoing specification, the present invention has been described only in terms of specific embodiments, and various changes or modifications can be made in the design features of the present invention. Therefore, obvious substitutions and modifications to those skilled in the art will still be incorporated in the scope of the patent claimed herein.

20‧‧‧Baker

21‧‧‧The wall

22‧‧‧ foot stand

23‧‧‧First end wall

232‧‧‧Perforation

24‧‧‧Shell

242‧‧‧Slot room

244‧‧‧port

25‧‧‧ second end wall

252‧‧‧ openings

26‧‧‧heating elements

262‧‧‧ feet

27‧‧‧Collection container

30‧‧ ‧ baking room

302‧‧‧Discharge exit

31‧‧‧ side wall

312‧‧‧ venting holes

32‧‧‧Roller

34‧‧‧ drive

342‧‧‧ mandrel

344‧‧‧ pin

36‧‧‧Center shaft

362‧‧‧ Connecting rod

364‧‧‧ first end

366‧‧‧ second end

368‧‧‧ Combination slot

38‧‧‧ Guide

41‧‧‧Baffle

42‧‧‧Exhaust device

44‧‧‧ cabinet

442‧‧‧draw

444‧‧‧ openings

446‧‧‧ Cover

46‧‧‧Exhaust fan

48‧‧‧ Filter

62‧‧‧Intake pipe

68‧‧‧through hole

72‧‧‧Roll mounting plate

74‧‧‧ Feed inlet

76‧‧‧ Feeding tube

762‧‧‧Upper cover

78‧‧‧Temperature Sensor

82‧‧‧Double gate

90‧‧ ‧ gas collection room

92‧‧‧ vent

94‧‧‧Outer cover

96‧‧‧Open slot

Claims (13)

A roaster comprising: a casing (24) having a heating chamber (28) formed therein, the heating chamber (28) having an intake pipe in communication with the exterior of the casing (24) (62); a drum (32) rotatably received in the heating chamber (28), the drum (32) internally defining a baking chamber (30) for receiving the workpiece, and the The drum (32) has a discharge outlet (302) for discharging the processed workpiece; and a suction device (42) having an air flow passage communication with the casing (24), and the air suction device ( 42) A case (44) and a blower (46) mounted in the case (44), the blower (46) can draw air from the case (24). The roaster according to claim 1, wherein the casing (24) has a cylindrical wall (21) and a first end wall (23), wherein the first end wall (23) There is a through hole (68) communicating with the outside of the casing (24), and the intake pipe (62) is engaged with the through hole (68). The roaster according to claim 2, wherein the housing (24) further comprises a second end wall (25), the second end wall (25) having an opening (252), the opening (252) A stacking door (82) having a roller mounting plate (72) and slidable by operation is assembled. The roaster according to claim 3, wherein the drum mounting plate (72) has a feed port (74), and the feed port (74) is connected to a feed pipe (76). The material pipe (76) is connected to the air guiding pipe (43) to form an air flow passage, so that an air flow passage is formed between the exhaust fan (46) and the casing (24). The roaster according to claim 1, wherein the roaster further comprises at least one heating element (26) disposed between the housing (24) and the drum (32) And adjacent to the intake pipe (62). The roaster according to claim 5, wherein the heating element (26) is a two-legged The U-shaped electric heater of the end (262) is disposed between the two ends (262) of the heating element (26). The roaster according to claim 12, wherein the roaster further comprises a control device (52), the control device (52) controls the operation of the exhaust fan (46) and the heating element (26) Heating temperature. The roaster according to claim 1, wherein the tank (44) further comprises a partition of the screen (48) between the exhaust fan (46) and the casing (24). (41). The roaster according to claim 1, wherein the roaster further comprises a motor (34) for driving the drum (32) to rotate, wherein the drum (32) is provided with a central shaft (36). The central shaft (36) has a first end (364), the first end (364) has a coupling groove (368), and the motor (34) has a spindle (342), the spindle (342) The front end has a pin (344) passing through the mandrel (342), the front end of the mandrel (342) is coupled to the first end (364) of the central shaft (36) of the drum (32), and the pin (344) correspondingly inserted into the coupling groove (368). The roaster according to claim 1, wherein the baking chamber (30) of the drum (32) has a side end wall (31), and the side end wall (31) is provided with a plurality of through the wall surface. Venting holes (312). The roaster according to claim 1, wherein the casing (24) further comprises a plenum (90) disposed at an air inlet of the intake pipe (62), and the plenum (90) has a vent (92) that communicates with the outside. The roaster according to claim 11, wherein the casing (24) has a cylindrical wall (21) and a first end wall (23), wherein the first end wall (23) Having a through hole (68) communicating with the exterior of the housing (24), and the intake tube (62) is engaged with the through hole (68), the plenum (90) including a first end wall ( 23) An outer cover body (94) extending, the outer cover body (94) extending adjacent to the case body (44), and the outer cover body (94) having an open groove (96) to form the air vent (92) . The roaster according to claim 2, wherein the inner wall of the casing (24) and the drum (32) The outer wall has a spacing (α), the baking chamber (30) of the drum (32) has a side end wall (31), and the side end wall (31) is provided with a plurality of venting holes (312) extending through the wall surface. The side end wall (31) and the first end wall (23) have a distance (β) between about 0.5 and 1.5 times the interval (α).