JP2000354830A - Sifter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sifter which sifts compost, cultured soil, earth, and others efficiently without being clogged. SOLUTION: A cylindrical net body 1 with both ends 1a, 1b opened is installed to be slanted, an agitation blade rotary shaft 5 is made to penetrate on the centerline of the net body 1. Numbers of agitation blades 7 are fitted to the rotary shaft 5, the tip of each blade 7 is made to contact or approach the inner surface of the net body 1, and the rotary shaft 5 is rotated by a driving means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sieving machine, and more particularly, to adjusting the particle size of compost, cultivated soil, soil, etc. (hereinafter referred to as "compost, etc.") as well as stone, synthetic, etc. from compost. The present invention relates to a sieving machine for sieving compost or the like in order to remove foreign substances such as resin chips and wood chips.

[0002]

2. Description of the Related Art Such a sieving machine is configured such that a cylindrical net arranged in an inclined state is rotated about its central axis as a center of rotation, or a cylindrical net is vibrated in a horizontal direction. Is already known.

[0003]

However, in the above-mentioned conventional sieving machine, there is a problem that the cylindrical mesh body is liable to be clogged particularly when sieving compost or the like having a high water content. When the cylindrical net is clogged, the clogging must be eliminated by cleaning the cylindrical net, but this cleaning is a troublesome operation requiring a great deal of labor. The present invention has been made to solve the above-mentioned problems in the conventional sieving machine.

[0004]

In order to solve the above problems, the present invention provides the following sieving machine.

(1) A cylindrical mesh body having both ends opened is disposed in an inclined state, and a stirring blade rotating shaft penetrates the center line of the cylindrical mesh body. Wherein the tip of each stirring blade is brought into contact with or close to the inner surface of the cylindrical mesh, and the rotation shaft of the stirring blade is rotated by driving means (claim 1).

(2) The cylindrical mesh body is rotated by a driving means in a direction opposite to a rotation direction of the stirring blade rotating shaft about a center line thereof as a rotation center (claim 2).

[0007]

In the sieving machine according to the first aspect, when the rotating shaft of the stirring blade is rotated by the driving means, the stirring blade attached to the rotating shaft of the stirring blade rotates the stirring blade. It rotates with its tip in contact with or close to the inner surface of the cylindrical mesh.

[0008] When sieving compost or the like, compost or the like is introduced into the cylindrical mesh from the open end on the high side of the cylindrical mesh arranged in an inclined state. The compost and the like charged into the cylindrical mesh are pressed by the mesh of the cylindrical mesh by a rotating stirring blade with the tip in contact with or close to the inner surface of the cylindrical mesh, and are pushed out of the mesh from the mesh. At this time, only compost and the like having a certain grain size or less pass through the mesh, and stones, synthetic resin pieces, wood pieces, and other foreign substances exceeding a certain grain size do not pass through the mesh from the lower open end of the cylindrical mesh. Fall. That is, the particle size of the compost or the like is adjusted, and foreign matters such as stones, synthetic resin pieces, and wood chips exceeding a certain particle size are removed from the compost or the like.

[0009] The stirring blade is rotated with its tip in contact with or close to the inner surface of the cylindrical mesh, and the compost and the like is pressed by the mesh of the cylindrical mesh by the stirring blade. Clogging is less likely to occur, and compost and the like are reliably extruded from the mesh of the cylindrical mesh. Even if the cylindrical mesh is clogged, if the stirring blade is rotated without putting compost into the cylindrical mesh, the compost attached to the mesh of the cylindrical mesh can be removed by the stirring blade. Since it is scraped out of the reticulated mesh, clogging of the cylindrical mesh is eliminated.

[0010] In the sieving machine according to the second aspect, since the cylindrical net itself also rotates, the compost or the like is more effectively turned upside down in the cylindrical net,
Stirred. The higher the rotation speed of the cylindrical mesh, the faster the compost or the like passes through the cylindrical mesh. Since the cylindrical mesh rotates in the direction opposite to the rotation direction of the stirring blade rotating shaft, the speed of the relative movement between the cylindrical mesh and the stirring blade is increased, and the sieving efficiency is improved. The sieving machine of claim 2 is preferably used particularly in the case of compost having a low water content.

[0011]

Next, embodiments of the present invention will be described with reference to the accompanying drawings. The reference numeral 1 indicates a cylindrical net. The cylindrical net 1 has both ends 1a and 1b open. The cylindrical net 1 is supported by the support frame 3 in an inclined state.
The stirring blade rotating shaft 5 is made to penetrate the center line of the cylindrical mesh body 1. Reference numerals 6a and 6b denote bearings of the stirring blade rotating shaft 5. A number of stirring blades 7 are attached to the stirring blade rotation shaft 5. As shown in FIG. 3 as an example, the stirring blade 7 has an arm 9 protruding from the rotation shaft 5 of the stirring blade, and the stirring plate 11 is attached to the arm 9.
Shall be attached. In FIG. 4, the stirring plate 11 is attached to the arm 9 so that the angle can be adjusted. The tip of each stirring blade 7 is always in contact with or close to the inner surface of the cylindrical mesh body 1. The stirring blade rotating shaft 5 is rotated by the driving means 13. As shown in FIG. 2 as an example, the drive means 13 has a sprocket 15 attached to one end of the stirring blade rotating shaft 5, and a motor 17 disposed near the stirring blade rotating shaft 5.
The sprocket 21 is attached to the output shaft 19 of the above, and the chain 23 is wound around the sprocket 15 of the stirring blade rotating shaft 5 and the sprocket 21 of the motor 17.

In the illustrated case, the cylindrical net 1 is rotated about the center line of the cylindrical net 1 by a driving means 25 in a direction opposite to the rotation direction of the stirring blade rotary shaft 5. Reference numeral 27 in FIGS. 1 and 3 denotes a support roller that rotatably supports the cylindrical mesh body 1 around its center line as a center of rotation. As shown in FIG. 2 as an example, the driving means 25 attaches a sprocket 29 to one end 1a of the cylindrical mesh 1, and attaches a sprocket 35 to an output shaft 33 of a motor 31 disposed near the cylindrical mesh 1. A chain 37 is wound around a sprocket 29 of the cylindrical net 1 and a sprocket 35 of the motor 31.

[0013]

[Effect of the Invention] The sieving machine according to the first aspect of the present invention is provided with a stirring blade that rotates in a state where the tip is in contact with or close to the inner surface of the cylindrical net, in the cylindrical net. Therefore, the compost or the like put into the cylindrical mesh is pressed by the mesh of the cylindrical mesh by the stirring blade, and is pushed out of the cylindrical mesh from the mesh. Therefore, the sieving operation of compost or the like can be performed efficiently.

The stirring blade rotates with its tip in contact with or close to the inner surface of the cylindrical mesh, and the compost or the like is pressed by the mesh of the cylindrical mesh by the stirring blade. Clogging is less likely to occur, and compost and the like are reliably extruded from the mesh of the cylindrical mesh. Even if the cylindrical mesh is clogged, if the stirring blade is rotated without putting compost into the cylindrical mesh, the compost attached to the mesh of the cylindrical mesh can be removed by the stirring blade. Since it is scraped out of the reticulated mesh, clogging of the cylindrical mesh is eliminated.

According to a second aspect of the present invention, in the second aspect of the present invention, the compost or the like is more effectively turned upside down in the cylindrical mesh because the cylindrical mesh itself also rotates.
Stirred. The higher the rotation speed of the cylindrical mesh, the faster the compost or the like passes through the cylindrical mesh. Since the cylindrical mesh rotates in the direction opposite to the rotation direction of the stirring blade rotating shaft, the speed of the relative movement between the cylindrical mesh and the stirring blade is increased, and the sieving efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a sieving machine according to the present invention.

FIG. 2 is a plan view schematically showing the sieving machine.

FIG. 3 is a sectional view of a cylindrical net.

FIG. 4 is a plan view of a stirring blade.

[Explanation of symbols]

 Reference Signs List 1 cylindrical net 1a end 1b end 3 support frame 5 stirring blade rotating shaft 6a bearing 6b bearing 7 stirring blade 9 arm 11 stirring plate 13 drive means 15 sprocket 17 motor 19 output shaft 21 sprocket 23 chain 25 drive means 27 support roller 29 Sprocket 31 motor 33 output shaft 35 sprocket 37 chain

Claims (2)

[Claims] 1. A cylindrical mesh body having both ends opened is disposed in an inclined state, and a stirring blade rotating shaft is passed through a center line of the cylindrical mesh body, and a large number of stirring blades are provided on the stirring blade rotating shaft. Attach, the tip of each stirring blade contact or close to the inner surface of the cylindrical mesh,
A sieving machine characterized in that a stirring blade rotating shaft is rotated by a driving means. 2. The sieving method according to claim 1, wherein said cylindrical mesh body is rotated by a driving means in a direction opposite to a rotation direction of said rotating shaft of said stirring blade with its center line as a center of rotation. Machine.