JP3024611U - Tea leaf crushing device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: When crushing tea leaves, small sized ones are sieved in advance from a mesh body, and tea leaves of a certain size or more are introduced into a crushing device and precisely cut into a desired size. It is possible to remove impurities and supply tea leaves smoothly while the device is in operation. SOLUTION: One or a plurality of rotatable cylindrical screen parts are continuously provided on the upstream side of a rotary tea leaf crushing device, and fine tea leaves are preliminarily sieved off by a mesh body of the continuous screen parts.
Only tea leaves of a certain size or more are guided to the pulverization processing device on the most downstream side, the raw material supply device is arranged on the most upstream side, and the residual foreign matter discharge hole is formed at the closed bottom.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention mainly relates to a tea leaf crushing apparatus which is provided when crushing various types of tea leaves into appropriate sizes according to their purposes.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, in the process of finishing tea leaves such as green tea, a so-called parallel sieving machine, a rotary sieving machine, and a cutting machine are used to sequentially pass the tea leaves to such a device to obtain the desired shape of the tea leaves. There was work to make the lengths uniform. In each of these devices, even if a certain amount of provisional results can be expected, it is extremely rough from the point of view of accuracy, and there are many variations in product dimensions, and the same process is repeated many times. Again, it was necessary to improve its accuracy.

In addition, recently, a screen portion of a hollow cylindrical body having a net body on the outer periphery and rotatably provided around a cylinder axis and having one end as a fixed bottom, and a strip shape arranged on the inner periphery of the cylinder. An apparatus for crushing tea leaves has also been developed and implemented, which consists of a cutting blade that rotates the cutting blade concentrically with the screen, and a shatterproof cover provided on the outside of the screen (Actual Kaihei 4-102650). issue). This device presses tea leaves against the inner wall of the screen part by the centrifugal force of the rotating screen part, so that the cutting blade part cuts as it is by the concentric rotating cutting part, or is sandwiched between the inner circumference of the screen part and the cutting blade part. This is to cut and release the cut tea leaves to the outside of the net by the centrifugal force accompanying the rotation of the screen part.In such a device, all the raw materials such as tea leaves are cut by the cutting blade. For this reason, there is a so-called defect that even tea leaves of a size that does not need to be cut become fine, and it is impossible to remove impurities such as fine stones and small metal pieces contained in uncut tea leaves, and it is forever in the screen section. As a result, the cutting blade is likely to be damaged, and since the method of feeding tea leaves to the screen is a feeding method using a screw conveyor, it depends on the size and material of the raw material. Clogging Te is occurred were those having a defect which can not be without the smoothly tea leaves supply.

[0004]

[Problems to be solved by the device]

 However, the tea leaf crushing and processing device proposed by the present invention was developed as a result of diligent research in view of the above-mentioned conventional defects, and from the raw materials in which tea leaves of different sizes are mixed, Only relatively large-sized tea leaves can be selectively crushed into a predetermined size in one operation, and there is almost no dimensional variation, and the desired purpose is achieved very efficiently. It is an object of the present invention to provide a tea leaf crushing and processing device that enables the above.

[0005]

[Means for Solving the Problems]

 In order to effectively achieve the above-mentioned object, the tea leaf crushing apparatus according to the present invention is provided with a mesh c on the outer circumference, and is a hollow cylinder that is rotatably provided laterally around the cylinder axis. The screen portion 7 of the body 8, the cutting blade portion 10a for rotating the band-shaped cutting blade 10 arranged on the inner circumference of the cylinder concentrically with the screen portion 7, and the shatterproof cover 19 provided outside the screen portion 7 In the tea leaf crushing and processing apparatus, the screen sections 5 and 6 made up of a single or a plurality of rotatable cylindrical bodies 8 are connected in series on the upstream side of the apparatus, and the screen sections 5 are connected in series. At the same time, fine tea leaves are sieved off by the nets a and b of 6 at the same time, and at the same time, only tea leaves of a certain size or more are guided to the pulverization processing device on the most downstream side to pulverize them, and the most upstream side is Consists of hopper 1, vibrating feeder 2, chute 3 and fixed bottom 3a It is characterized by a tea leaf crushing device provided with a material supply device, and a tea leaf crushing device which forms a residual foreign matter discharge hole 18 communicating with the outside at a closed bottom 8a of the downstream crushing device. To do.

[0006]

[Embodiment of device]

 In the tea leaf crushing device of the present invention, a screen portion of a hollow cylindrical body provided with a net body on the outer circumference and rotatably provided around the cylinder axis is provided, and a band-shaped member arranged on the inner circumference of the cylinder. A crushing and processing device for tea leaves, which mainly consists of a screen part and a cutting blade part for concentric rotation of the cutting blade, is mainly used, but one or more cylinders are provided in advance on the upstream side of the device to reach the device. The screen part consisting of the body is continuously extended and the fine mesh of the tea leaves is initially sieved off by the mesh of the connected screen parts, and only the tea leaves having a certain size or more are selected to the downstream side. It guides to the above-mentioned crushing processing device and crushes the tea leaves, and since the raw material supply device is installed on the uppermost stream side opposite to this, only the tea leaves of the size necessary for cutting Can be cut into pieces of appropriate size Becomes, those which do not require cutting is intended to be dropped accommodated through the mesh of the screen portion up to the said apparatus. Furthermore, the supply is smooth, and stones, metal particles, and other contaminants contained in tea leaves can be automatically discharged and removed by rotation.

[0007]

【Example】

 Next, an example of an embodiment related to the tea leaf crushing apparatus according to the present invention will be described in detail.

A schematic front view of a tea leaf crushing apparatus according to the present invention is shown in FIG. 1 is a hopper into which tea leaves are put, 2 is a vibrating feeder disposed below the hopper 1, 3 is a chute into which tea leaves are fed by a vibrating feeder 2, and the hopper 1, vibrating feeder 2 and chute 3 The tea leaf supply device, which is a raw material constituted by, is arranged so as to be located on the uppermost stream side opposite to the device for crushing tea leaves by the rotation action described later.

Reference numeral 8 is a cylindrical body formed by surrounding mesh bodies a, b, and c on the outer circumference. The cylindrical body 8 used in the present invention has a skeleton as shown in FIG. Rotatable screen portions 5, 6, 7 are formed by attaching a, b, c.

On the most downstream side of the cylindrical body 8, a screen portion 7 that is a hollow cylindrical body 8 that is provided with a mesh body c on the outer periphery and is horizontally installed so as to rotate around a cylindrical axis, and the screen portion 7 A rotary crushing and processing apparatus for tea leaves is provided, which comprises a band-shaped cutting blade 10 arranged on the inner circumference of the cylinder, and a cutting blade portion 10a that rotates concentrically with a screen portion.

The device for pulverizing and processing tea leaves by this rotary system is provided on the most downstream side opposite to the tea leaf supply device, and one or more rotatable cylindrical bodies 8 are provided on the upstream side of such a device. The screen portions 5 and 6 are continuously extended, and the fixed bottom 3a constituting the tea leaf supply device side is inserted at the most upstream end of the screen portion 5.

In the tea leaves thus fed from the supply device, fine tea leaves are preliminarily rotated by the nets a and b of the screen portions 5 and 6 in which the cylindrical bodies 8 are extended and connected. The powder is screened out by the centrifugal force that accompanies the process, and this screening process passes through one or more screen parts to guide only tea leaves of a certain size or more to the pulverization device on the most downstream side. In this part, when the tea leaves are appropriately cut into uniform size, the cut tea leaves are discharged to the outside by the centrifugal force due to the rotation through the mesh c formed on the outer periphery of the screen part 7 at the same time. Becomes

A closed bottom 8a is integrally formed at the end edge of the cylindrical body 8 in the pulverization device located on the most downstream side, and foreign matters such as stones and metal pieces are formed outside the closed bottom 8a. A residual foreign matter discharge hole 18 communicating with the outside for automatically discharging the object to the outside according to the rotational movement thereof is formed.

As a preferred embodiment, the following steps and structure are adopted. First, the raw material such as tea leaves charged into the hopper 1 is stably charged into the shoot 3 without being clogged by the vibrating feeder 2, and the longitudinal hollow cylinder 8 rotatably installed by the central shaft 22 is installed. It slides down inside. On the outer periphery of the cylindrical body 8, screens 5, 6 and 7 are formed by attaching mesh bodies a, b and c corresponding to a relatively small particle size in the raw material to be sieved. However, by dividing the nets a, b, and c into three compartments and using different nets having different mesh sizes, it is possible to collect tea leaves having different particle sizes at once. It is also possible to use a mesh body having the same diameter and mesh size.

At both edges of the screen portion, a closed bottom 8a is provided on the downstream side and a fixed bottom 3a is provided on the upstream side, and the screen portion 5 is provided with a screen portion 5 on the outermost periphery of the screen portion 5 by a bearing roller 4. It is supported. The screen portions 5, 6, 7 composed of such a cylindrical body 8 are rotatably supported by a motor 12 and a cylindrical body driving sprocket 11 about a central axis 22 thereof, and rotate concentrically with the screen portions 5, 6, 7. The cutting blade portion 10a including the cutting blade 10 is configured to rotate by the cutting blade driving motor 14, the cutting blade driving pool 13, and the cutting blade mounting shaft 9. In the figure, reference numerals 15, 16 and 17 denote respective bearings, 19 denotes a cover for preventing the crushed tea leaves from scattering, and 21 denotes a dust collecting exhaust port.

The screen portion of the cylindrical body 8 is given a constant angle by the inclination angle adjusting device 20 formed on the most upstream side, and the rotation of the screen causes the raw material to move to the most upstream screen portion. It is sifted by 5 and moves downstream, and then it is sifted by the next screen section 6 as well, and only the large-sized raw material on the screen moves to the further downstream screen section 7. By the rotating cutting blade 10 provided in the portion, the tea leaves are surely crushed into tea leaves of a certain size and without unevenness, so that the tea leaves that have passed through the mesh c of the screen portion 7 fall down and grow. The crushing will be completed.

Further, stones and small metal pieces that are difficult to cut are pushed toward the residual foreign matter discharge hole 18 and accumulated, and are discharged when the discharge hole 18 is positioned downward by rotation, and foreign matters and the like are received in the receiving box. Etc.

[0018]

[Effect of device]

 According to the tea leaf crushing apparatus of the present invention, small-sized tea leaves are successively sifted through the net before guiding the tea leaves to the crushing apparatus, and the remaining tea leaves of a certain size or larger are continuously guided to the crushing apparatus. It can be precisely cut into a desired size, and only the tea leaves necessary for cutting can be crushed. In addition, since impurities such as stones and small metal pieces contained in tea leaves can be carried out and removed during crushing, the cutting blade can be used for a long period of time without eye spillage, and the tea leaf supply device is separated from the crusher. Since it is configured in different parts, the phenomenon of clogging at the time of supply does not occur, and smooth tea supply can always be achieved.

[Brief description of drawings]

FIG. 1 is a schematic front view of an apparatus.

FIG. 2 is a partially cutaway perspective view of a cylindrical body.

[Explanation of symbols]

 1 Hopper 2 Vibration feeder 3 Chute 3a Fixed bottom 4 Bearing roller 5 Screen part 6 Screen part 7 Screen part 8 Cylindrical body 8a Closed bottom 9 Cutting blade mounting shaft 10 Cutting blade 10a Cutting blade part 11 Cylinder driving sprocket 12 Motor 13 Cutting Blade drive pulley 14 Cutting blade drive motor 15 Bearing 16 Bearing 17 Bearing 18 Residual foreign matter discharge hole 19 Cover 20 Tilt angle adjusting device 21 Dust collection exhaust port 22 Center axis a Net b b Net c c Net

Claims (2)

[Scope of utility model registration request] 1. A screen portion of a hollow cylindrical body, which is provided with a mesh body on its outer periphery and is rotatably provided laterally around a cylindrical axis,
In a tea leaf crushing device consisting of a cutting blade part that rotates a band-shaped cutting blade concentrically with the screen part arranged on the inner circumference of the cylinder, and a shatterproof cover provided outside the screen part,
On the upstream side of the device, a screen portion composed of a single or a plurality of rotatable cylinders is continuously provided, and at the same time fine tea leaves are sieved off by a mesh body of each continuously provided screen portion,
It is characterized in that only tea leaves of a certain size or more are guided to the pulverization processing device on the most downstream side and crushed, and a raw material supply device including a hopper, a vibration feeder and a chute is arranged on the most upstream side. Tea leaf crushing device. 2. The apparatus for crushing tea leaves according to claim 1, wherein a residual foreign matter discharge hole communicating with the outside is formed in the closed bottom of the downstream crushing apparatus.