JP3171706U - Anti-clogging brush - Google Patents

Abstract

It is possible to prevent clogging of a sieve screen even when the sieve is driven with high vibration. A brush 1 includes a main body 11 formed of a rectangular plate member, and a protruding portion 12 formed to protrude from one surface of the main body 11, and the curved surface of the protruding portion 12 is supported when the frame body vibrates. The main body 11 swings while the point in contact with the mesh 23 moves, and the end of the main body 11 is brought into contact with the sieve mesh 22 to suppress clogging of the sieve mesh 22. [Selection] Figure 8

Description

  The present invention relates to a brush which is loaded on a sieve of a milling device and prevents clogging of the sieve screen.

  Conventionally, multi-stage sieving and sorting machines are used in flour mills and the like. This sorter is configured to vibrate with a driving device a vibrating body in which a plurality of frames in a vertical direction are accommodated in a frame attached with a sieve mesh, and the accommodated frame has meshes of different sizes. A sieve net is attached. The clogging prevention brush is loaded in each frame body in order to prevent clogging of the screen mesh.

  The frame is composed of a rectangular frame, and a screen is attached to one surface of the frame, and a crimp network is attached to the other surface, and the mesh is between the screen and the crimp network. A clogging prevention brush is loaded.

  The conventional structure of this brush has a configuration in which a hemispherical protrusion 52 is provided on one surface of a rectangular or triangular plate member 51, as shown in FIG. As shown in FIG. 10, the protrusion 52 comes into contact with the crimp net 62, and when the brush 5 moves on the crimp net 62 due to the vibration of the frame, the end of the plate member 51 of the brush 5 becomes the sieve net. It moves while making contact with the lower surface of 61, and the structure is such that the powder clogged with the mesh of the sieve mesh 61 is dropped by the movement while making contact. Such contact of the brush 5 is such that the plate member 51 of the brush 5 is inclined obliquely (imaginary line in FIG. 10) in the frame body, so that the end of the plate member 51 reaches the lower surface of the sieve mesh 61. Can be removed.

Japanese Utility Model Publication No. 03-70788

  However, the conventional brushes have the following problems.

  The vibration of the frame is applied by rotating the frame body around a position eccentric from the center along the plane of the sieve screen, and the vibration applied in the vertical direction is small. Here, if the rotation of the driving device is made faster, the brush 5 itself rotates like a frame around the projection 52, and the plate member 51 is moved relative to the sieve screen 61 as shown in FIG. It will be in a parallel state without inclining. For this reason, when the drive rotation for vibration is made faster, the brush 5 does not come into contact with the sieve screen 61, and a sufficient clogging prevention effect is not obtained.

  An object of the present invention is to provide a clogging preventing brush capable of preventing clogging of a sieve screen even when the sieve is driven with fast vibration.

  The above object is achieved by the following present invention.

(1) Provided on one side of the frame member and having a support net formed by braiding wire rods formed in corrugations vertically and horizontally and a sieve net provided on the other side, and vibrating the frame member A brush arranged between the sieve mesh and the support mesh of the sorting device for sieving the powder by
A plate-shaped main body, and a protrusion protruding in the direction of the support net on the surface of the main support net of the main body, the protrusion is a convex arc shape in vertical and horizontal cross-sectional shape, and the apex of the protrusion is A clogging preventing brush located at a predetermined distance from the center of gravity of the main body in plan view.

According to the first aspect of the present invention, the curved surface of the protrusion comes into contact with the support net, and the main body swings around the contact point. In the frame member, the main body of the brush is always maintained in an inclined state, and one end side of the main body is always in contact with the lower surface of the sieve mesh. Since the projecting portion comes into line contact with the support net at the tip side, the main body can always be tilted without rotating like a frame even if the rotational vibration of the frame body becomes faster. . In addition, every time the tilt direction of the main body changes or swings due to the rotation of the frame member, the edge of the main body exerts an action of hitting the screen from below. The clogging of the screen is suppressed by the action of hitting the screen by the edge of the main body.
In addition, since the protruding portion has a smooth curved surface, it is easy to move on the support net, and the edge of the brush can be brought into contact with the lower surface of the sieve net uniformly.

It is a schematic diagram of the sorter loaded with a plurality of frames into which the brush for preventing clogging of the present invention is loaded. It is the whole frame perspective view with which the brush for clogging prevention of the present invention is loaded. It is a whole perspective view of a support net. It is a front view of the brush for clogging prevention of this invention. It is a side view similarly. It is a bottom view similarly. It is a front view which shows the state of the brush for clogging prevention loaded in the frame. It is a side view which shows the state of the brush for clogging prevention loaded in the frame. It is a bottom view of the clogging preventing brush showing another embodiment. It is a side view similarly.

  The present invention for achieving the above object has the following configuration. FIG. 1 is a schematic view of a sorter 3 loaded with a plurality of frames 2 to which the brush 1 for preventing clogging of the present invention is loaded, and FIG. 2 is an overall perspective view of the frame 2.

  As shown in FIG. 1, the sorter 3 to which the present invention is used includes a storage unit 31 that stores the frame 2 in a plurality of stages in the vertical direction, and a drive device 32 that drives the storage unit 31 to vibrate. ing. The frame body 2 includes a frame member 21, a sieve mesh 22 stretched on one side of the frame member 21, and a support mesh 23 adjusted on the other surface, and is loaded into the sorter 3. The sieve mesh 22 of the frame 2 is configured so that the mesh of the sieve becomes finer from the top to the bottom.

  As shown in FIG. 3, the support network 23 of the frame body 2 is formed by weaving a wire rod formed in a corrugated shape with the same pitch into a longitudinal member 231 and a transverse member 232 vertically and horizontally. And the intersection part 230 of the vertical member 231 and the cross member 232 is comprised so that the peak part and trough part of each wire may cross | intersect.

  A clogging preventing brush 1 (hereinafter referred to as “brush”) is interposed between the support net 23 and the sieve net 22. 4 is a front view of the brush 1, FIG. 5 is a side view, and FIG. 6 is a bottom view.

  As shown in FIGS. 4 to 6, the brush 1 includes a main body 11 formed of a rectangular plate member, and a protruding portion 12 formed to protrude from the surface of the main body 11 on the support net 23 side. I have. The protrusion 12 has a curved surface that protrudes from the entire surface of the main body 11 and protrudes toward the apex. In other words, the protrusion is formed such that the vertical and horizontal cross-sectional contours are convex arcs. The convex arc shape of the cross-sectional contour is formed so that the curvature of the arc gradually increases from each end side (long side 111, short side 112) toward the apex P. And the vertex P of a protrusion part exists in the position away from the gravity center G of the said main body by predetermined distance e in planar view. As shown in FIG. 6, the positional relationship between the position of the center of gravity G and the vertex P is not limited to being located on a straight line along a direction parallel to the long side 111, but is a predetermined distance in another direction. It may be a distant position (for example, a direction along the diagonal direction of the main body 11 or a direction along the short side 112).

  The protruding portion 12 has a smooth inclination as a whole, and can smoothly move on the support net 23.

  In this embodiment, the protrusion 12 and the main body 11 are integrally formed of the same material. For example, it is made of synthetic resin and can be integrally formed by injection molding.

  7 and 8 are side views showing the state of the brush 1 loaded in the frame 2. In the configuration as described above, the brush 1 has the protrusion 12 in contact with the support net 23, the main body 11 swings while moving the contact point between the surface of the protrusion 12 and the support net 23, and the frame 2. In the inside, it always maintains in a slanting state, and is always in contact with one of the end sides (long side 111 or short side 112) of the main body 11 and the lower surface of the sieve mesh 22. Since the contact point between the projecting portion 12 and the support net 23 always changes, the brush 1 does not rotate like a frame even when the rotational vibration of the frame 2 becomes fast, and the main body 11 is always inclined. It can be made into the state which carried out. Further, every time the frame body 2 is swung by the rotation of the frame body 2 and the tilt direction is swung or changed in the same posture, any end side (long side 111 or short side 112) of the main body 11 is moved. The action of hitting the sieve screen 22 from below is exhibited. The clogging of the screen mesh 22 is suppressed by the action of hitting the screen mesh with the end of the main body 11.

  The protruding portion 12 may be formed separately from the main body 11 without being integrally formed, and may be fixed to the main body 11. The protruding portion 12 may be made of a material different from the main body 11, for example, metal or other synthetic resin. May be. The shape of the main body 11 is not limited to a rectangle, but may be a square, another polygon such as a triangle, or a circle.

DESCRIPTION OF SYMBOLS 1 Clogging prevention brush 11 Main body 111 Long side 112 Short side 12 Projection part 2 Frame body 21 Frame member 22 Sieve net 23 Support net 3 Sorting machine G Center of gravity P Vertex

Claims (1)

A supporting net formed on one side of the frame member and formed by corrugating wire rods formed in a corrugated shape and a sieve net provided on the other side, and by vibrating the frame member, A brush arranged between a sieve screen and a support screen of a screening device for screening a body,
A plate-shaped main body, and a protrusion protruding in the direction of the support net on the surface of the main support net of the main body, the protrusion is a convex arc shape in vertical and horizontal cross-sectional shape, and the apex of the protrusion is A clogging preventing brush located at a predetermined distance from the center of gravity of the main body in plan view.

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