JPS584614Y2 - vibrating sieve - Google Patents

Description

【考案の詳細な説明】 本考案は篩網上に送給される粉粒体に篩網面を離れて投
げ出されるような運動をさせて篩分は作業を行う振動篩
における篩網の目詰りを除去するようにした振動篩に関
するものである。[Detailed description of the invention] This invention solves the problem of clogging of the sieve screen in a vibrating sieve in which the sieve material is removed by moving the powder and granules fed onto the sieve screen so that they are thrown away from the sieve screen surface. This invention relates to a vibrating sieve designed to remove.

一般に、振動篩は基礎に設置される基台上に篩網を張設
した篩枠を弾性支持し、該篩枠に振動発生装置よりの振
動を加えながら篩網上に被処理物である粉粒体を供給し
て、粉粒体に篩網を離れて投げ出される連動を繰返し与
えて移動させながら分級や異物除去等の篩分は作業を行
うものであるが、篩分は作業の進むにつれて篩網の網目
に粉粒体が詰って捕捉されていわゆる目詰りが発生し、
このような篩網の目詰りは篩分は能力を低下させて粉粒
体の処理能力を減少させるものであるから、振動篩にお
いては篩網叩き用の球体を収容する多孔板製の保持室を
篩網の下部側に面して篩枠に取付は保持させ、該篩枠の
振動により球体に保持室の底面を離れて投げ出される運
動を与えて篩網の下面に下方より衝突させて篩網を叩く
ことにより目詰りした粉粒体を除去するようにしている
が、粉粒体は篩網の網目を上方より下方へ通過する途＋
′１ｃｚ−いて粒子寸法が網目より犬な部分があって通
過不能となって網目に詰るものであるから、篩網の下面
に上方へ向う叩き作用を与えることによりさらに強く詰
るような傾向を生じて目詰りを助長することになり、十
分な目詰りの除去が行われない欠点がある。In general, a vibrating sieve elastically supports a sieve frame with a sieve screen stretched over a base set on the foundation, and while applying vibration from a vibration generator to the sieve frame, the material to be processed, ie, the powder, is placed on the sieve screen. Sieving operations such as classification and foreign matter removal are carried out by feeding granules and repeatedly moving them so that they are thrown out of the sieve screen. Powder and granules get stuck in the mesh of the sieve screen and become trapped, causing so-called clogging.
Since such clogging of the sieve screen reduces the sieve capacity and reduces the processing capacity of powder and granular materials, in vibrating sieves, a holding chamber made of a perforated plate that accommodates the balls for beating the sieve screen is used. The sphere is attached to and held in a sieve frame facing the lower side of the sieve screen, and the vibration of the sieve frame gives the sphere a motion that leaves the bottom of the holding chamber and is thrown out, causing it to collide with the bottom surface of the sieve screen from below, thereby removing the sieve. The clogged powder and granules are removed by hitting the screen, but as the powder passes through the sieve mesh from the top to the bottom,
Since there are parts of the sieve with particle sizes larger than the mesh that prevent them from passing through and clog the mesh, applying an upward beating action to the bottom surface of the sieve screen creates a tendency for the particles to become even more clogged. This has the disadvantage that clogging is not removed sufficiently.

本考案は以上の欠点のない振動篩を目的と１て完成され
たもので、以下、図示の実施例について詳細に説明する
。The present invention was completed with the aim of providing a vibrating sieve that does not have the above-mentioned drawbacks, and the illustrated embodiments will be described in detail below.

１は外周部上方に受座２を水平状に突設した基台で、そ
の上方には、中央部を高く形成させた底部を有する筒状
秘体３が前記の受座２に支持される複数個のコイルばね
等の弾性部材４により弾性支持されて設けられており、
該筒状枠体３の下部側方には篩下産物と逐る粉粒体を排
出する排出導管５が取付けられているとと□もに底部下
面の中央部には振動発生装置６が設装置されており、振
動発生装置６の主体となるモータ７の上下に突出される
回転軸８には所定の位ね角をもって不平衡重錘９がそれ
ぞれ取付けられている。Reference numeral 1 denotes a base with a catch 2 horizontally protruding above the outer periphery, and above the base, a cylindrical secret body 3 having a bottom with a high central part is supported by the catch 2. It is provided and elastically supported by a plurality of elastic members 4 such as coil springs,
A discharge conduit 5 for discharging the sieved product and the powder and granules is attached to the lower side of the cylindrical frame 3, and a vibration generator 6 is attached to the center of the lower surface of the bottom. An unbalanced weight 9 is attached at a predetermined tilt angle to a rotary shaft 8 projecting upward and downward of a motor 7, which is the main body of the vibration generator 6.

１０は筒状枠体３の上方にボルトその他により固着され
る餉状の篩枠中、その内側下方には円形の篩網１１がそ
の外周部を篩枠１０の内周面に沿わせて張設されており
、該篩網１１は篩枠１０の内側より水平状に突設される
鍔部１２にリング状の押え部材１３を介してボルト等の
締付部材１４により固定保持され、さらに篩枠１０の鍔
部１２上には、合成繊維紐あるいは細いピアノ線のよう
な屈曲性または可撓性のある細条１５の一端がその基端
に形成されるリング状その他の形状の取付部１６をもっ
て略等間隔に適当数前記の締付部材１４により係止され
ており、各細条１５の先端にはゴム等よりなる目詰り防
止用の球体１７がそれぞれ取付けられて篩網１１上に適
数個の球体１７が載置された状態とされ、各球体１７は
その篩網１１上における運動範囲を細条１５の長さを半
径とする区域内に規制されることによりそれぞれ片寄る
ことなく篩網１１上に分散されるようになっており、従
って、振動発生装置６のモータ７を駆動させることによ
り、弾性部材４により弾性支持されている筒状枠体３は
モータ７の回転軸８と共に回転する上下の不平衡重錘９
により不平衡荷重を受けて水平および垂直方向の振動の
合成運動である三次元の振動を行い、これにより筒状枠
体３上に固着されている篩枠１０も同様な三次元の振動
を行って篩網１１上へ送給された粉粒体および細条１５
の先端に取付けられて前記篩網１１上に分散されている
球体１７に篩網１１面を離れて投げ出され、再び篩網１
１面上へ落下する運動を繰返し与えるような構成とされ
ている。Reference numeral 10 denotes a hook-shaped sieve frame fixed to the upper part of the cylindrical frame 3 by bolts or the like, and a circular sieve screen 11 is stretched on the inside lower side thereof with its outer periphery along the inner circumferential surface of the sieve frame 10. The sieve screen 11 is fixed and held by a tightening member 14 such as a bolt through a ring-shaped holding member 13 to a flange 12 that projects horizontally from the inside of the sieve frame 10. On the flange 12 of the frame 10 is a ring-shaped or other shaped attachment part 16 having one end of a bendable or flexible strip 15 such as a synthetic fiber string or thin piano wire formed at its base end. A suitable number of the above-mentioned tightening members 14 are held at approximately equal intervals, and a ball 17 made of rubber or the like for preventing clogging is attached to the tip of each strip 15 and placed on the sieve screen 11. Several spheres 17 are placed on the screen, and each sphere 17 has a range of movement on the sieve screen 11 within an area whose radius is the length of the strip 15, so that each sphere 17 can sieve without shifting. Therefore, by driving the motor 7 of the vibration generator 6, the cylindrical frame 3, which is elastically supported by the elastic member 4, is moved together with the rotating shaft 8 of the motor 7. Rotating vertically unbalanced weight 9
Under the unbalanced load, the sieve frame 10 fixed on the cylindrical frame 3 also undergoes a similar three-dimensional vibration. Powder and granules and strips 15 fed onto the sieve screen 11
The spheres 17 attached to the tip of the sieve screen 11 are thrown away from the sieve screen 11 surface, and are thrown out from the sieve screen 11 again.
The structure is such that it repeatedly gives the motion of falling onto one surface.

なお、１８は篩土産物となる。Note that 18 is a sieve souvenir.

粉粒体を排出可能に篩枠１０の下部側方に設けられる排
出導管、１９は篩枠１０の上部開口部に取付けられる蓋
体、２０は蓋体１９に形成される粉粒体の供給口である
。A discharge conduit provided at the lower side of the sieve frame 10 to enable discharge of powder and granules, 19 a lid body attached to the upper opening of the sieve frame 10, and 20 a supply port for the powder and granules formed in the lid body 19. It is.

このように構成されたものは、振動発生装置６のモータ
７を駆動して筒状枠体３および篩枠１０を三次元運動さ
せながら被処理物である粉粒体を供給口２０から篩網１
１の中央部へ送給すると、粉粒体は篩枠１０による篩網
１１の三次元運動により篩網１１面を離れて投げ出され
、再び篩網１１面へ落下する運動を繰返し受けながら篩
網１１の中央部から周辺側へ放射状に広がって移動し、
この間に篩網１１の網目の大きさに規制されて粉粒体の
篩分けが行われて該粉粒体中の細粒分は篩網１１を通過
して筒状枠体３の底部上へ落下し、その後筒状枠体３の
内周面側へ移動して篩下産物として排出導管５より外部
へ排出され、また、粗粒分は篩網１１を通過することな
く篩枠１０の内周面側へ移動して篩土産物として排出導
管１８より外部へ排出されて篩分は作業が行われ、これ
と同時に篩網１１には供給された粉粒体中の一部の粒子
が網目に詰ることにより目詰りが発生するが、篩網１１
上には適数個の球体１７が前記の篩網１１の三次元運動
につれて篩網１１面を離れて投げ出され、再び篩網１１
面上へ落下する運動を繰返しなから細条１５の長さに規
制されてその長さを半径とする区域内を互に片寄ること
なく分散移動しており、これにより篩網１１に対して球
体１７による上方よりの叩き作用が連続的に且つ、片寄
ることなく略均等に加えられて篩網１１の全面に下方へ
向う衝撃的な作用が与えられ、篩網１１の網目に詰った
粒子は慣性によう該網目中を抜は出し可能側である上方
へ飛び出す形となって網目より脱出して篩網１１の目詰
りは全面的に除去される。In this structure, the motor 7 of the vibration generator 6 is driven to move the cylindrical frame 3 and the sieve frame 10 three-dimensionally, and the powder and granular material to be treated is passed through the sieve screen from the supply port 20. 1
When the powder and granules are fed to the center of the sieve 1, the sieve frame 10 causes the sieve screen 11 to move in three dimensions, leaving the surface of the sieve screen 11 and being thrown out, and falling onto the screen 11 surface again. 11 spreads radially from the center to the periphery,
During this time, the powder and granules are sieved according to the mesh size of the sieve screen 11, and the fine particles in the powder and granules pass through the sieve screen 11 and onto the bottom of the cylindrical frame 3. The particles fall and then move toward the inner peripheral surface of the cylindrical frame 3 and are discharged to the outside from the discharge pipe 5 as unsieved products, while the coarse particles do not pass through the sieve screen 11 and are discharged inside the sieve frame 10. It moves to the peripheral surface side and is discharged to the outside through the discharge conduit 18 as a sieving souvenir, and the sieving work is performed, and at the same time, some of the particles in the powder and granular material supplied to the sieve screen 11 are transferred to the sieve screen 11. Although clogging occurs due to clogging, the sieve screen 11
An appropriate number of spheres 17 are thrown out from the surface of the sieve 11 as the sieve 11 moves in three dimensions, and are thrown out from the sieve 11 again.
Since the movement of falling onto the surface is repeated, the spheres are regulated by the length of the strips 15 and move in a distributed manner within an area whose radius is the length of the strips. The hitting action from above by the screen 17 is applied continuously and almost uniformly without shifting, giving a downward impacting action to the entire surface of the screen 11, and the particles clogging the mesh of the screen 11 are inertia The sieve screen 11 is completely freed from clogging by jumping out of the screen upwards, which is the side where it can be pulled out.

なお、筒状枠体３と篩枠１０は一体構造としてもよく、
また、目的に応じて篩枠１０は複数個積み重ねる構成と
することもでき、さらに細条１５の取付部１６は篩枠１
０の周壁に直接係止させるようにしてもよい。Note that the cylindrical frame 3 and the sieve frame 10 may have an integral structure,
Further, depending on the purpose, a plurality of sieve frames 10 can be stacked, and the attachment portions 16 of the strips 15 can be attached to the sieve frame 1.
It may be directly locked to the peripheral wall of 0.

以上の実施例による説明によって明らかなように、本考
案によれば、篩網は細条により行動範囲を規制された球
体により上方より叩かれるので目詰りした粒子、は網目
より抜は出し可能側である上方へ飛び出す形となって無
理なく簡単に目詰りが除去され゛るうえに球体は篩網上
を片寄ることなく分散移動されて篩網全面にむらなく叩
き作用が与えられて目詰りが完全に除去されるもので、
構造も簡単で安価に提供できる利点と相俟ち実用的価値
のきわめて犬なものである。As is clear from the explanation of the above embodiments, according to the present invention, the sieve screen is struck from above by a sphere whose movement range is regulated by stripes, so that the clogged particles can be pulled out from the screen. The spheres pop out upwards, allowing the clogging to be removed easily and effortlessly.In addition, the spheres are dispersed and moved over the sieve screen, giving an even beating action to the entire surface of the sieve screen, thereby removing the clogging. It will be completely removed,
Combined with the advantages of simple structure and low cost, it is of great practical value.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は一部切欠
正面図、第２図は同じく一部切欠平面図である。 １０・・・・・・篩枠、１１・・・・・・篩網、１５・
・・・・・細条、１７・・・・・・球体。The drawings show an embodiment of the present invention, and FIG. 1 is a partially cutaway front view, and FIG. 2 is a partially cutaway plan view. 10... Sieve frame, 11... Sieve screen, 15.
...Stripes, 17...Spheres.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 振動可能な篩枠１０に篩網１１を張設するとともに適当
数の細条１５の一端を連結して該細条１５の他端には篩
網１１上に載置される球体１７を取付けたことを特徴と
する振動篩。A sieve screen 11 was stretched over a vibrating sieve frame 10, one end of an appropriate number of strips 15 was connected, and a sphere 17 to be placed on the sieve screen 11 was attached to the other end of the strip 15. A vibrating sieve characterized by: