JP2005137320A - Rotary drum type secondary tea rolling dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary drum type secondary tea rolling dryer sufficiently performing rolling action on tea leaves without changing a relative rotational speed ratio of a rolling handle to a drum. <P>SOLUTION: This rotary drum type secondary tea rolling dryer has a drum 1 formed in an almost cylindrical shape so as to hold tea leaves and rotatable around the axis, a rotatable rotary axis 2 extended to the axial direction of the drum 1, a plurality of rolling handles 3 set in the longitudinal direction of the rotary axis 2, rotatable with the rotation of the rotary axis 2 in the drum 1 and scratching up while applying rolling action to the tea leaves in the drum 1, and a gas heating device 4 sending hot air to the axial direction in the drum 1 and drying the tea leaves. The rolling handles 3 adjacent to each other are attached one by one to the rotary axis 2 at 60 degree angle in the rolling dryer which rotates and turns the drum 1 and the rolling handles 3 at a relative speed of given ratio. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rotary barrel type intermediate bobbin machine that exerts a squeezing action on tea leaves in the barrel while rotating and rotating the barrel and the hand at a predetermined relative speed.

  A general rotating torso-type center bobbin machine has a barrel formed into a substantially cylindrical shape capable of accommodating tea leaves, a girder that has a squeezing action on the tea leaves in the drum, and the trunk and the gutter in the same direction. It is mainly composed of a rotating shaft that rotates and rotates at a relative speed, and a furnace that sends hot air into the barrel, and the barrel has an inlet that feeds tea leaves and an outlet that drops downward. Is formed. However, a plurality of the hooks attached to the rotation shaft are attached to the longitudinal direction of the rotation shaft, and the adjacent ones are sequentially attached at an angle shifted by 90 degrees (for example, Patent Document 1). reference).

According to the above-described conventional rotary barrel type intermediate boring machine, due to the relative speed difference between the barrel and the girder, the girder squeezes the tea leaf near the bottom of the drum to a predetermined height, Therefore, it was possible to shape the needles while reducing the moisture content. Normally, the surface close to the torso bottom of each hand is formed in a helical shape, and the direction in which the tea leaves are scraped is opposite to the direction of hot air flow, and the tea leaves in the torso are unevenly distributed by the hot air flow It was configured not to.
JP-A-63-254948

  However, according to the above-described conventional rotary barrel type intermediate boring machine, the adjacent hooks are sequentially attached at an angle shifted by 90 degrees, so that there is a possibility that the squeezing action cannot be sufficiently exerted on the tea leaves. There was a risk that the quality would deteriorate. That is, it takes a predetermined time for the tea leaves picked up by one hand to be swallowed by other adjacent hands, and the tea leaves cannot be sufficiently swallowed within the set time. There was a fear. Such a problem seems to be solved, for example, by increasing the relative rotation speed with respect to the torso's torso, but considering the quality of the tea leaves, the relative torsional speed between the toe and the torso is approximately a ratio of 2 to 1. Is known to be most preferable, and there is also a circumstance that it is not desired to change the rotation speed ratio.

  The present invention has been made in view of such circumstances, and is a rotary barrel type centering machine capable of sufficiently performing a squeezing action on tea leaves without changing the relative rotational speed ratio between the hand and the trunk. Is to provide.

  The invention according to claim 1 is formed in a substantially cylindrical shape capable of accommodating tea leaves, and can be rotated around its axis, and can be rotated in the axial direction of the cylinder. A plurality of hands attached in the longitudinal direction and capable of rotating in accordance with the rotation of the rotary shaft in the barrel, and a scissor scooping up while exerting a squeezing action on the tea leaves in the barrel, and an axial direction in the barrel In a rotary barrel type centering machine that includes a heating and drying means for drying tea leaves by feeding hot air into the barrel and rotating and rotating the barrel and the hand at a relative speed of a predetermined ratio, The hand is sequentially attached to the rotating shaft at an angle of less than 90 degrees.

  According to a second aspect of the present invention, in the rotary trunk type intermediate boring machine according to the first aspect, the mounting angle of the adjacent rower is a predetermined angle within a range of about 45 degrees to 75 degrees. .

  According to a third aspect of the present invention, in the rotary drum type intermediate boring machine according to the first or second aspect, the rotating shaft is formed of a round bar having a circular cross section, and a base end of the hand of the hand is provided on a peripheral wall of the round bar. It is characterized by being fitted and fixed.

  According to the first aspect of the present invention, the adjacent grips are sequentially attached to the rotation shaft at an angle of less than 90 degrees, so that it is possible to grind the tea leaves without changing the relative rotational speed ratio between the grips and the trunk. Can be sufficiently performed.

  According to the second aspect of the present invention, the angle of attachment of the adjacent hand is set to a predetermined angle within a range of about 45 degrees to 75 degrees, so that the relative rotation speed ratio between the hand and the torso is changed. In addition, it is possible to sufficiently perform the squeezing action on the tea leaves, and to suppress the occurrence of foliage due to the excessive squeezing action.

  According to the invention of claim 3, since the base end of the hand is fitted and fixed to the peripheral wall of the round bar, the hand is attached to the rotary shaft as compared with the rotary shaft having a rectangular cross section. Can be easily performed at an arbitrary angle.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The rotary barrel type centering machine according to the present embodiment is installed in a tea factory and is used for squeezing tea leaves and drying them while shaping them. As shown in FIG. A base 7, a barrel 1 rotatable on the base 7, a rotary shaft 2 extending in the axial direction in the barrel 1, a plurality of claws 3 attached to the rotary shaft 2, a barrel 1 is mainly composed of a gas furnace 4 (heating and drying means) for sending hot air into 1, a fan 5 attached in the vicinity of the right end of the body 1 in the figure, and a cyclone 6.

  The trunk | drum 1 is formed in a cylindrical shape, and can accommodate a tea leaf inside, and can be rotated on the rotating shaft 2 as an axis | shaft. The barrel 1 is formed with an inlet (not shown) for introducing tea leaves into the interior and an outlet 1a (see FIG. 2) for dropping the processed tea leaves downward from the inlet. After a predetermined amount of tea leaves has been thrown in, it rotates for a set time, and when the desired squeezing action and drying are finished, it is dropped downward from the discharge port 1a, for example, a vibrating conveyor disposed below (Not shown) can be transferred to the next process. In addition, the door (not shown) which can be opened and closed is attached to the discharge port 1a, and it is possible to open the door and drop the tea leaf from the discharge port 1a only when discharging the tea leaf after processing.

  The rotary shaft 2 extends in the axial direction in the body 1 and is rotatable, and is supported by bearings x, y, z, and the like disposed on the base 7. As shown in FIG. 2, the rotary shaft 2 is formed of a round bar having a circular cross section, and can be driven to rotate by a drive source such as a motor (not shown). The rotary shaft 2 is provided with a plurality of claws 3 in the longitudinal direction thereof, and is configured such that the plural claws 3 are rotated with the rotation of the rotary shaft 2.

  As shown in FIG. 4, each hand 3 includes a bar-like hand pillar 8, a fitting member 9 that is formed on the base end side of the hand pillar 8 and is fitted to the rotary shaft 2, and the hand pillar The rotary shaft 2 is inserted into a hole 9a formed in the fitting member 9 so that the rotary shaft 2 and the handle 3 are connected to each other. It is configured as follows. More specifically, the fitting member 9 is formed with a pair of insertion portions 9b and 9c through which the column 8 is inserted, in addition to the hole 9a through which the rotary shaft 2 is inserted. A male threaded portion 8a is formed at the base end of the screw.

  Then, by tightening the tightening nut 10 and bringing the insertion portions 9b and 9c of the fitting member 9 close to each other, the inner diameter of the hole 9a is reduced, and the rotary shaft 2 can be held by the inner peripheral surface of the hole 9a. ing. Thereby, since the handle 3 is fixed to the rotating shaft 2, it is easy to arbitrarily set an attachment angle of the handle 3 with respect to the rotating shaft 2. Further, the attachment angle with respect to the rotation axis of the rower can be arbitrarily set as compared with a case where the cross-section of the rotation shaft is attached to a rectangular shape.

  Further, when the handle 3 is attached to the rotary shaft 2, the surface of the spatula portion 11 is set so as to be separated from the inner peripheral surface near the bottom surface of the barrel 1 by a minute dimension. The tea leaves are allowed to have a squeezing action on the inner peripheral surface. Further, the surface of the spatula portion 11 is formed in a helical shape, and when the tea leaves that have given the squeaking action are scraped upward, It is set to go to the left in FIG. Thereby, the tea leaves are not unevenly distributed in the body 1 by the hot air sent from the gas furnace 4. That is, the wind force (shown by the white arrow in FIG. 3) caused by the hot air exerted on the tea leaves and the scraping force (shown by the black arrows in the figure) by the hand 3 are balanced, and the tea leaves are unevenly distributed. Is suppressed.

  On the other hand, the trunk 1 and the grip 3 (that is, the rotating shaft 2) are set to rotate and rotate in the same direction (right rotation in FIG. 2) at a relative speed of a predetermined ratio (for example, 1 to 2). In addition, the squeezing action on the tea leaves by the hand 3 is exerted by the relative speed. In the present embodiment, a drive source such as a motor for rotating the barrel 1 and a drive source such as a motor for rotating the handle 3 (that is, the rotating shaft 2) are disposed separately. The body 1 and the hand 3 may be rotated and rotated by the same drive source through a clutch or the like.

  The gas furnace 4 is disposed in the vicinity of the left end of the body 1 and is disposed in communication with the interior of the body 1 through the duct D. Hot air generated in the gas furnace 4 is introduced into the body 1. It has become so. The hot air is configured to circulate from the left end to the right end in the body 1 shown in FIG. That is, since the air in the cylinder 1 can be sucked by the rotation of the fan 5, the hot air of the gas furnace 4 flows from the left end of the cylinder 1 to the right end.

  The hot air sucked by the fan 5 is introduced into the cyclone 6 from the introduction port 6c of the cyclone 6, and only air is discharged from the upper exhaust port 6a, while the fan is discharged from the discharge pipe 6b extending at the lower part. The tea leaves and the like sucked by the suction force of 5 are discharged to the lower part of the base 7 (the part where the vibration conveyor and the like are disposed). The fan 5 is rotatable around the rotation shaft 2 and is configured to be able to rotate at a speed different from the rotation speed or the rotation speed of the body 1 and the handle 3.

  Here, as shown in FIG. 2, the rotary barrel type intermediate bodice machine according to the present embodiment is sequentially arranged on the rotary shaft 2 at an angle α (60 degrees in the present embodiment) where the adjacent hand 3 is smaller than 90 degrees. It is attached. Specifically, in the same figure, a vertically upwardly extending hand is set as 3a, and a position shifted by 60 degrees to the left (position adjacent to the longitudinal direction of the rotating shaft 2) is 3b, and so on. As shown in FIG. 3, the attachment positions a to n (14 locations) are set in order from the right side of the rotating shaft 2. Then, the hand 3a is attached to the rotary shaft 2 at the position a, the hand 3b is attached to the position b, and the hand 3f is attached to the position f.

  Further, the position of g on the rotating shaft 2 is a vertically upward-facing hand (separated from 3a but referred to as 3a for convenience. Hereinafter, the same but the same phase is denoted by the same reference numeral. In this order, the grips 3b to 3f are attached to the position 1 on the rotary shaft 2 in order. Note that the claws 3a and 3b are attached to the remaining positions m and n. Accordingly, one grip is attached to each position of the rotary shaft 2, and a plurality of (14) grips are attached in the longitudinal direction of the rotary shaft 2, and the mounting angle between adjacent grips 3 is 60 degrees. A phase difference is generated one by one.

Next, the operation of the rotary trunk type intermediate machine having the above configuration will be described.
After putting a predetermined amount of tea leaves into the barrel 1 from the slot, by rotating the barrel 1 and the rotating shaft 2 at a relative speed of a predetermined ratio (about 1 to 2), the hand 3 is moved inside the barrel 1. Rotate. The tea leaves in the barrel 1 are agitated in the radial direction of the barrel 1 by the rotation of the barrel 1, and are squeezed by the gripper 3 to be shaped into needles. The tea leaves that have been squeezed are scraped upward by the further rotation of the hand 3 and are stirred, for example, toward the adjacent hand 3 but the adjacent hands 3 have a phase of 60 degrees. Since it is attached to hold, it will have a squeezing action immediately after it is scraped.

  Therefore, a sufficient squeezing action can be exerted on the tea leaves being processed, and better shaping can be performed. Further, the tea leaves that have been scraped are dried by hot air from the gas furnace 4, the water content is reduced, and the tea leaves are closer to product tea. However, in the present embodiment, the adjacent claws 3 are attached with a phase difference of 60 degrees, but if they are sequentially attached at an angle smaller than 90 degrees, they are swollen compared to the conventional one. The action can be performed more sufficiently.

  However, if the mounting angle of the adjacent handle 3 is extremely small, an excessive squeezing action is imparted to the tea leaves, and the tea leaves are not shredded and broken into pieces (such as foliage). End up. The quality of the product tea may deteriorate if such a leaf is contained in a large amount in the product tea. Therefore, it is preferable that the attachment angle of the adjacent handle 3 is a predetermined angle within a range of approximately 45 to 75 degrees. If the adjacent hand is attached at an angle within such a range, the squeezing action can be sufficiently performed while suppressing the occurrence of a large amount of foliage.

  Light powder such as powdered tea or mixed leaves floating in the barrel 1 is introduced into the cyclone 6 by the suction force of the fan 5 when it is picked up by the hand 3, and the base 7 is connected via the discharge pipe 6b. On the other hand, when the set time elapses after the tea leaves are introduced, the door closing the outlet 1a is opened while the rotational speed of the barrel 1 is lowered, and the processed tea leaves fall from the outlet 1a. After the fall of the tea leaves, the door is closed again and the discharge port 1a is closed, and then the next tea leaf is introduced from the input port. In addition, in this embodiment, although what was discharged | emitted from the discharge pipe 6b is comprised so that the tea leaf which fell from the discharge port 1a may be mixed, what was discharged | emitted from the discharge pipe 6b is accommodated in another position. You may make it sort.

  As described above, according to the rotary trunk type intermediate boring machine of the present embodiment, the adjacent hand 3 is attached to the rotary shaft 2 at an angle smaller than 90 degrees (specifically, 60 degrees). The tea leaves picked up by the hand can be immediately squeezed by the adjacent hand, and compared to the case where the adjacent hand 3 is attached at 90 degrees as in the conventional case, the tea leaves are more fully squeezed. It can be performed. Further, by setting the attachment angle of the adjacent rower to a predetermined angle within a range of about 45 degrees to 75 degrees, it is possible to sufficiently perform the swallowing action while suppressing the occurrence of foliage and the like.

  Although the present embodiment has been described above, the present invention is not limited to this, and for example, a hand other than 14 (including both when there are fewer or more than 14) is attached to the rotating shaft 2. You may do it. Of course, even in such a case, it is necessary that adjacent claws are sequentially attached to the rotary shaft at an angle smaller than 90 degrees, and preferably a predetermined angle within a range from 45 degrees to 75 degrees. In addition, the attachment structure of each handle 3 to the rotary shaft 2 is not limited to that of the present embodiment, and various attachment methods (for example, fixing the base end of the handle 3 to the rotary shaft 2 by welding, etc.) are adopted. Can do. Furthermore, instead of the gas furnace 4, other heating and drying means that can send hot air into the barrel 1 may be used.

  As long as the torso and the hand are rotated and rotated at a relative speed of a predetermined ratio to squeeze and dry the tea leaves, and the adjacent hand has the above mounting angle, the external shape, etc. It can be applied to other types of intermediate machines.

FIG. 2 is a schematic front view showing a partially broken rotary trunk type intermediate machine according to an embodiment of the present invention. Schematic diagram showing the inside of the cylinder and the state of attachment of the rower in the same rotary torso Schematic diagram showing the mounting position of the rotary shaft and the rower disposed in the drum in the same rotary torso type Schematic diagram showing a rower in the same rotary torso

Explanation of symbols

1 Body 2 Rotating shaft 3 Hand 4 Gas furnace (heating and drying means)
5 Fan 6 Cyclone 7 Base 8 Rail hand 9 Fitting member 10 Clamping nut 11 Spatula

Claims (3)

A barrel that is formed in a substantially cylindrical shape that can accommodate tea leaves, and that can rotate around its axis;
A rotating shaft that extends in the axial direction of the barrel and is rotatable;
A plurality of hands attached in the longitudinal direction of the rotating shaft and capable of rotating in accordance with the rotation of the rotating shaft in the barrel,
A heating and drying means for sending hot air in the axial direction in the body to dry the tea leaves;
A rotating torso type centering machine that rotates and rotates the barrel and the hand at a predetermined relative speed,
The rotary barrel type intermediate boring machine characterized in that the adjacent hooks are sequentially attached to the rotary shaft at an angle smaller than 90 degrees.   2. The rotary trunk type intermediate boring machine according to claim 1, wherein an attachment angle of adjacent rowers is a predetermined angle within a range of about 45 degrees to 75 degrees.   3. The rotating drum according to claim 1, wherein the rotating shaft is formed of a round bar having a circular cross section, and a base end of the handle is fitted and fixed to a peripheral wall of the round bar. A mold-centering machine.

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