JPH0150472B2 - - Google Patents
Info
- Publication number
- JPH0150472B2 JPH0150472B2 JP58195069A JP19506983A JPH0150472B2 JP H0150472 B2 JPH0150472 B2 JP H0150472B2 JP 58195069 A JP58195069 A JP 58195069A JP 19506983 A JP19506983 A JP 19506983A JP H0150472 B2 JPH0150472 B2 JP H0150472B2
- Authority
- JP
- Japan
- Prior art keywords
- sieve member
- sieve
- granules
- cover plate
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Combined Means For Separation Of Solids (AREA)
Description
本発明は振動選別機に係り、特に柱状の粒状体
をその直径および長さ別に選別可能にした振動選
別機に関する。
合成樹脂や金属等のペレツト、あるいは米、
麦、豆などの穀類、その他の粒状をなす各種農産
物等を粒度別に分級、選別する選別手段として振
動選別機が用いられている。この振動選別機は、
篩部材と、これを振動させる振動モータとで構成
され、通常、粒状体を移送する移送シユートの途
中に配設されている。
ところで、この種の振動選別機においては、球
形または球形に近い粒状体の分級、選別は比較的
容易であるが、円柱や角柱など柱状体について
は、特にその長さ別に選別することが困難であ
る。これは、篩部材の振動により柱状の粒状体が
起立してそのまま篩部材の目孔を通過するためで
あり、このため粒状体を例えば自動計量機にて計
量する際などに、比較的長い粒状体が計量機内で
目詰まりを起こし、正確な計量ができなくなると
いつた不都合を生じていた。
このような不都合に対処するため、振動選別機
の振幅ないし振動数を小さくして粒状体の起立を
抑制する対策が考えられるが、振幅ないし振動数
を小さくすることは振動選別機の処理能力を大幅
に低下させることになり、従来の問題点の本質的
な解決にはならない。
本発明はこのような事情に鑑みて提案されたも
ので、その目的とするところは、振動選別機の処
理能力を低下させることなく柱状の粒状体をその
直径および長さ別に選別可能な振動選別機を提供
することにあり、その要旨は、振動する篩部材に
よつて粒状体を粒度別に選別する振動選別機にお
いて、篩部材の上方に、該篩部材に対して所定の
間隔を保持して平行に複数の覆板を設け、これら
覆板の粒状体の移送方向に沿つて互いに間隔を置
いて配設し、各覆板間に粒状体を導入するための
導入口を設けるとともに、篩部材に、上記導入口
に面して、該導入口より広い巾をもつ閉塞面部を
形成し、篩部材と共に覆板に振動させ、該覆板と
閉塞面部とによつて、篩部材の目孔径より小径で
所定の長さより長い粒状体が篩部材上で起立して
目孔を通過することを阻止するように構成したこ
とを特徴とする振動選別機にある。
以下に本発明の一実施例を図面に基づいて説明
する。第１図および第２図に示すように、振動選
別機１は薄形の箱状をなすケース２を有し、この
ケース２全体を振動モータ３にて振動させて粒状
体の選別を行なうようになつている。上記ケース
２の一端部上面には、粒状体をケース２内に装入
するための装入口４が形成され、またケース２の
他端部には、直径および長さ別に分級、選別され
た柱状の粒状体を排出するための３つの排出口５
〜７が形成されている。なお、ケース２はその上
板部２ａが開放されたものであつてもよい。
ケース２の内部には、第１図に示すようにケー
ス２内を水平方向に横断した篩部材８，９が上下
二段に配設されている。これら篩部材８，９は、
例えば篩網や孔あき板によつて構成してよいが、
本実施例では第３図に示すように上段の篩部材８
に孔あき板を採用し、下段の篩部材９に篩網を採
用する。篩部材８，９は、上段の篩部材８の目孔
径が下段の篩部材９の目孔径よりもやや大きくさ
れており、篩部材８の排出端は排出口５と接続さ
れ、篩部材９の排出端は排出口６と接続されてい
る。そして所望の直径および長さを有する粒状体
は排出口６から排出され、それよりも大きな直径
ないし長さを有する粒状体は排出口５から排出さ
れるようになつている。また排出口７はケース２
の底板２ａに開口しており、所望の直径ないし長
さに満たない粒状体がこの排出口７から排出され
るようになつている。
上記篩部材８の上方には、第１図〜第３図に示
すように篩部材８と所定の間隙を隔てて平行をな
す覆板１０がケース２の長手方向に沿つて複数枚
（図示例では５枚）配設されている。これら覆板
１０は互いに所定の間隔を隔てて配設されてお
り、各覆板１０の左右両側にそれぞれ導入口１１
が形成されている。そして粒状体がこの導入口１
１から篩部材８上に導入されるようになつてい
る。一方、上記篩部材８には各導入口１１に臨む
位置に閉塞面部１２が形成され、導入口１１から
導入された粒状体はこの閉塞面部１２上に落下す
るように構成されている。また篩部材８には、各
覆板１０の下方に位置する部分のみに、選別する
粒状体１４が通過する複数の目孔１８が形成され
ている。
なお導入口１１ないし閉塞面部１２の長さは比
較的長い方が好ましいが、振動選別機１全体の長
さが長くなり過ぎないように、導入口１１ないし
閉塞面部１２の長さを、篩部材８上で振動してい
る粒状体の振幅の５〜20倍程度とするのがよい。
また、篩部材８，９の篩部１３の長さも長い程良
いが、振動選別機１全体の長さが長くなり過ぎな
いように各篩部１３の篩効率が95％以上（導入口
１１から入つた粒状体が篩部１３の部分を通過す
る間に粒状体の95％以上が落下）になるような長
さにするのが望ましい。
次に、上記篩部材８と覆板１０の相対的な位置
関係を第４図に基づきさらに詳しく説明する。ま
ず第４図に示す如く、篩部材８の篩部１３の目孔
径をａ、選別する粒状体１４の基準長さをｂ、同
じく基準直径をｃ、篩部材８と覆板１０との間隙
をｄ、閉塞面部１２に対する導入口１１の縁部１
５の投影点１６から閉塞面部１２の縁部１７まで
の距離をｅ、とすると、
ｄ≦bc／ａ ……(1)
なる関係がともに成立するように篩部材８と覆板
１０が配設されている。
なお上式の具体的意義については、次に述べる
振動選別装置１の作動説明にて明らかにする。
振動選別装置１は上述の如く構成されてなり、
装入口４からケース２内に装入された粒状体１４
は、振動モータ３によつて振動されつつ第１図で
矢印ｆ方向に除々に移送される。そして、粒状体
１４はこの移送過程において篩部材８，９にて分
級、選別され、選別された粒状体１４は３つの排
出口５〜７からそれぞれ排出される。
この際、篩部材８の上方には覆板１０が配設さ
れているので、篩部材８上の粒状体１４ａが振動
モータ３の振動によつて第４図に示す如く矢印ｇ
方向に回動して起立しようとしても、粒状体１４
ａの上端部Ｈが覆板１０の下面に当接して第４図
に示す状態以上に起立することがない。このとき
の粒状体１４ａの最大傾斜角度は、前述の式(1)に
て誘導される間隙ｄにて決定されるものであり、
間隙ｄが狭いほど粒状体１４ａの傾斜角度を小さ
くすることができる。しかし、間隙ｄがあまり狭
くなると、篩部材８上における粒状体１４の移送
量が減少して振動選別機１の処理能力を低下させ
る。このため、好ましくは間隙ｄを許容最大幅：
bc／ａとしておくのがよい。第４図は間隙ｄ＝
bc／ａとした場合の実施例を示したものであつて、
同図より明らかな如く、粒状体１４ａの傾斜角度
が最大となつたときでも、粒状体１４ａの下端部
Ｌが篩部１３の目孔１８の周縁部と当接するの
で、粒状体１４ａが目孔１８を通過することがな
い。なお、実際には篩部材８に厚みｔがあるの
で、間隙ｄをbc／ａよりもやや広くしても、粒
状体１４ａが目孔１８を通過することはないが、
各部の寸法誤差等を考慮すると、式(1)によりｄの
大きさを決定するのが最も現実的であり合理的で
ある。なお覆板１０をネジなどの適当な手段によ
り上下に移動できるようにすることにより間隙ｄ
を調節することができ、篩目を通過する粒状体の
最大長を自由に調節することができる。
次に、覆板１０上を移送されてきた粒状体１４
ｂが第４図に示す如く導入口１１から篩部材８の
目孔１８に向かつて直接落下するときの状態に関
して説明する。この場合、覆板１０と閉塞面部１
２とが重なり合つている長さは距離ｅであつて、
このｅの大きさは前述の式(2)にて誘導される。こ
のｅの大きさは、あまり大きくしても意味がない
ので、好ましくは許容最小値：ｂ√１−（）
2−ａとしておくのがよい。第４図は距離ｅ＝√
１−（ｃ／ａ）2−ａとした場合の実施例を示した
ものであつて、同図より明らかな如く、粒状体１
４ｂの傾斜角度が最大となつたときでも、粒状体
１４ｂの下端部Ｌが篩部１３の最も端に形成され
た目孔１８の周縁部と当接するので、粒状体１４
ｂが目孔１８を通過することがない。なお、実際
には篩部材８に厚みｔがあるので、距離ｅを式(2)
による許容最小値よりもやや小さくしても、粒状
体１４ｂが目孔１８を通過することはない。しか
し、各部の寸法誤差等を考慮すると、前述の式(1)
と同様に式(2)によりｅの大きさを決定するのが最
も現実的であり合理的である。
一方、長さｂ以下で直径ｃ以下の粒状体は、第
３図に示す如く篩部材８の篩部１３を通過して下
段の篩部材９上に落下し、篩部材９の目孔よりも
小さな粒状体は、さらに篩部材９を通過してケー
ス２の底面２ａに落下する。この結果、長さｂ以
上で直径ｃ以上の粒状体と直径ａ以上の粒状体は
排出口５から排出され、長さｂ以下で直径ｃ以下
の粒状体であつて篩部材９の目孔径以上の直径を
有する粒状体は排出口６から排出され、その他の
細かい粒状体は排出口７から排出される。従つて
第４図に示す諸寸法ａ，ｂ，ｅ等の値を適宜決定
することにより、所望の長さおよび直径を有する
粒状体を排出口６から得ることができる。
なお、粒状体に混じつてケース２内に装入され
た塊状物やヒトデ形状をなす異物は、適当な振動
があればこの振動作用と粒状体の押上げ作用とに
よつて覆板１０を乗越えて移送される。従つて篩
部材８と覆板１０との間に上記異物が詰まるおそ
れはなく、長時間の連続運転が可能である。
本発明に係る振動選別機１は各種粒状体の分
級、選別に使用可能であり、例えば合成樹脂類や
金属等のペレツト、あるいは米、麦、豆類などの
穀類、その他の粒状をなす各種農産物等を粒度別
に分級、選別することが可能であり、特に合成樹
脂のペレツトの分級、選別に最適である。本願出
願人らは、この分級、選別効果を確認するため
に、下表に示す諸寸法にて構成された振動選別機
１を用いて、直径2.5mm、長さ３mmのABS樹脂製
ペレツトの連続分級、選別試験を１ケ月間にわた
つて行なつた。その結果、排出口６より得られた
ペレツトの中には15mm以上の長さの棒状ペレツト
は全く含まれていなかつた。
The present invention relates to a vibration sorter, and more particularly to a vibration sorter capable of sorting columnar granules according to their diameter and length. Pellet of synthetic resin or metal, or rice,
A vibration sorter is used as a sorting means for classifying and sorting grains such as wheat and beans, and other granular agricultural products according to particle size. This vibration sorter is
It consists of a sieve member and a vibration motor that vibrates the sieve member, and is usually placed in the middle of a transfer chute that transfers granular materials. By the way, with this type of vibration sorter, it is relatively easy to classify and sort spherical or near-spherical granules, but it is difficult to sort columnar objects such as cylinders and square columns, especially by their length. be. This is because column-shaped granules stand up due to the vibration of the sieve member and pass through the holes in the sieve member.For this reason, when weighing granules with an automatic weighing machine, for example, relatively long granules are This caused inconveniences such as the body clogging the weighing machine and making accurate weighing impossible. In order to deal with this inconvenience, it is possible to reduce the amplitude or frequency of the vibration sorter to suppress the standing up of granules, but reducing the amplitude or frequency reduces the processing capacity of the vibration sorter. This results in a significant decrease in the amount of electricity, and does not essentially solve the conventional problems. The present invention was proposed in view of the above circumstances, and its purpose is to provide a vibration sorting system that can sort columnar granules according to their diameter and length without reducing the throughput of the vibration sorter. The gist of the machine is to provide a vibration sorting machine that sorts granular materials according to particle size using a vibrating sieve member, in which a predetermined interval is maintained above the sieve member with respect to the sieve member. A plurality of cover plates are provided in parallel, these cover plates are arranged at intervals from each other along the direction in which the granules are transported, and an inlet for introducing the granules is provided between each cover plate, and a sieve member is provided. Then, a closed surface portion facing the inlet port and having a width wider than the inlet port is vibrated on the cover plate together with the sieve member, and the cover plate and the closed surface portion cause the hole diameter to be larger than the pore diameter of the sieve member. A vibration sorting machine is characterized in that it is configured to prevent particles having a small diameter and longer than a predetermined length from standing up on a sieve member and passing through the holes. An embodiment of the present invention will be described below based on the drawings. As shown in FIGS. 1 and 2, the vibration sorter 1 has a thin box-shaped case 2, and the entire case 2 is vibrated by a vibration motor 3 to sort out granular materials. It's getting old. A charging port 4 for charging the granular material into the case 2 is formed on the upper surface of one end of the case 2, and a columnar shape classified and sorted according to diameter and length is formed on the other end of the case 2. Three outlets 5 for discharging the granules
~7 are formed. Note that the case 2 may have an open upper plate portion 2a. Inside the case 2, as shown in FIG. 1, sieve members 8 and 9 are arranged in two stages, upper and lower, which horizontally cross the inside of the case 2. These sieve members 8 and 9 are
For example, it may be composed of a sieve screen or a perforated plate, but
In this embodiment, as shown in FIG.
A perforated plate is used for the sieve member 9, and a sieve screen is used for the sieve member 9 at the lower stage. In the sieve members 8 and 9, the pore diameter of the upper sieve member 8 is slightly larger than that of the lower sieve member 9, and the discharge end of the sieve member 8 is connected to the discharge port 5. The discharge end is connected to the discharge port 6. The granules having a desired diameter and length are discharged from the discharge port 6, and the granules having a larger diameter or length are discharged from the discharge port 5. Also, the discharge port 7 is in case 2.
The outlet 7 is opened in the bottom plate 2a of the outlet 7, and granules having a diameter or length less than the desired length are discharged from the outlet 7. Above the sieve member 8, as shown in FIGS. 1 to 3, a plurality of cover plates 10 are arranged along the longitudinal direction of the case 2 and are parallel to the sieve member 8 with a predetermined gap between them. 5 sheets) are arranged. These cover plates 10 are arranged at a predetermined interval from each other, and inlet ports 11 are provided on both left and right sides of each cover plate 10.
is formed. The granular material is introduced into this inlet port 1.
1 onto the sieve member 8. On the other hand, the sieve member 8 is formed with a closed surface portion 12 at a position facing each inlet 11, and the granules introduced from the inlet 11 are configured to fall onto the closed surface portion 12. Further, in the sieve member 8, a plurality of holes 18 through which the granular material 14 to be sorted passes is formed only in the portion located below each cover plate 10. Although it is preferable that the length of the inlet 11 or the closed surface part 12 is relatively long, the length of the inlet 11 or the closed face part 12 is determined by adjusting the length of the inlet 11 or the closed surface part 12 so that the overall length of the vibration sorter 1 does not become too long. It is preferable that the amplitude be about 5 to 20 times the amplitude of the granular material vibrating on 8.
In addition, the longer the length of the sieve parts 13 of the sieve members 8 and 9, the better, but in order to prevent the overall length of the vibration sorter 1 from becoming too long, the sieving efficiency of each sieve part 13 should be 95% or more (from the inlet 11 It is desirable that the length is such that at least 95% of the granules fall while the granules are passing through the sieve section 13. Next, the relative positional relationship between the sieve member 8 and the cover plate 10 will be explained in more detail based on FIG. 4. First, as shown in FIG. 4, the pore diameter of the sieve part 13 of the sieve member 8 is a, the standard length of the granular material 14 to be sorted is b, the standard diameter is c, and the gap between the sieve member 8 and the cover plate 10 is d, edge 1 of the inlet 11 relative to the closed surface portion 12
If the distance from the projection point 16 of No. 5 to the edge 17 of the closed surface section 12 is e, then d≦bc/a...(1) The sieve member 8 and the cover plate 10 are arranged so that the following relationship holds true. The specific significance of the above equation will be clarified in the operation explanation of the vibration sorting device 1 described below. The vibration sorting device 1 is configured as described above,
Granular material 14 charged into case 2 from charging port 4
is gradually transferred in the direction of arrow f in FIG. 1 while being vibrated by the vibration motor 3. During this transfer process, the granules 14 are classified and sorted by the sieve members 8 and 9, and the sorted granules 14 are discharged from the three discharge ports 5 to 7, respectively. At this time, since the cover plate 10 is disposed above the sieve member 8, the granules 14a on the sieve member 8 are moved by the arrow g as shown in FIG.
Even if you try to stand up by rotating in the direction, the granules 14
The upper end H of the cover plate 10 does not come into contact with the lower surface of the cover plate 10 and stand up any higher than the state shown in FIG. 4. The maximum inclination angle of the granular material 14a at this time is determined by the gap d induced by the above formula (1),
The narrower the gap d, the smaller the inclination angle of the granules 14a. However, if the gap d becomes too narrow, the amount of granular material 14 transferred on the sieve member 8 decreases, reducing the throughput of the vibration sorter 1. For this reason, preferably the gap d is the maximum allowable width:
It is better to set it as bc/a. Figure 4 shows the gap d=
This figure shows an example in which bc/a. Since it comes into contact with the peripheral edge of the eye hole 18, the granular material 14a does not pass through the eye hole 18. In addition, since the sieve member 8 actually has a thickness t, even if the gap d is slightly wider than bc/a, the granular material 14a will not pass through the eye holes 18.
Considering the dimensional errors of each part, it is most practical and rational to determine the size of d using equation (1). Note that the gap d can be reduced by making the cover plate 10 movable up and down using a suitable means such as screws.
can be adjusted, and the maximum length of the granules passing through the sieve can be freely adjusted. Next, the granules 14 transferred on the cover plate 10
A description will be given of the state in which the liquid b drops directly from the inlet 11 toward the holes 18 of the sieve member 8 as shown in FIG. In this case, the cover plate 10 and the closing surface part 1
The length of the overlap between 2 and 2 is the distance e,
The magnitude of this e is derived from the above-mentioned equation (2). There is no point in increasing the size of e too much, so preferably the minimum allowable value is: b√1-()
It is better to leave it as 2 -a. Figure 4 shows distance e=√
1-(c/a) 2 -a, and as is clear from the figure, the granules 1
Even when the inclination angle of the granules 14b reaches the maximum, the lower end L of the granules 14b comes into contact with the peripheral edge of the opening 18 formed at the end of the sieve part 13.
b does not pass through the eye hole 18. In addition, since the sieve member 8 actually has a thickness t, the distance e can be calculated using equation (2).
Even if the diameter is slightly smaller than the minimum allowable value, the granules 14b will not pass through the holes 18. However, considering the dimensional errors of each part, the above formula (1)
Similarly, it is most practical and rational to determine the size of e using equation (2). On the other hand, granules having a length of less than b and a diameter of less than c pass through the sieve part 13 of the sieve member 8 and fall onto the lower sieve member 9, as shown in FIG. The small particles further pass through the sieve member 9 and fall onto the bottom surface 2a of the case 2. As a result, granules with a length b or more and a diameter c or more and granules with a diameter a or more are discharged from the discharge port 5, and granules with a length b or less and a diameter c or more and which are larger than or equal to the hole diameter of the sieve member 9. The granules having a diameter of 1 are discharged from the outlet 6, and the other fine granules are discharged from the outlet 7. Therefore, by appropriately determining the values of dimensions a, b, e, etc. shown in FIG. 4, granules having a desired length and diameter can be obtained from the outlet 6. Note that if there is appropriate vibration, the lumps and starfish-shaped foreign objects mixed with the granules and charged into the case 2 will be able to overcome the cover plate 10 by the vibration action and the pushing up action of the granules. will be transferred. Therefore, there is no fear that the above-mentioned foreign matter gets stuck between the sieve member 8 and the cover plate 10, and continuous operation for a long time is possible. The vibration sorter 1 according to the present invention can be used to classify and sort various granular materials, such as pellets of synthetic resins and metals, grains such as rice, wheat, and beans, and various other granular agricultural products. It is possible to classify and sort according to particle size, and is especially suitable for classifying and sorting synthetic resin pellets. In order to confirm this classification and sorting effect, the applicants of this application used a vibration sorter 1 configured with the dimensions shown in the table below to continuously collect ABS resin pellets with a diameter of 2.5 mm and a length of 3 mm. Classification and sorting tests were conducted over a period of one month. As a result, the pellets obtained from the discharge port 6 did not contain any rod-shaped pellets with a length of 15 mm or more.
【表】
以上、本発明の一実施例につき説明したが、本
発明は上記実施例に限定されることなく種々の変
形が可能である。例えば上記実施例では篩部材
８，９を平面状に構成したが、円筒状に構成する
ことも可能である。また篩部材９を省略してもよ
い。
本発明は上述の如く、篩部材の上方に、該篩部
材に対して所定の間隔を保持して平行に複数の覆
板を設け、これら覆板を粒状体の移送方向に沿つ
て互いに間隔を置いて配設し、各覆板の間に粒状
体を導入するための導入口を設けるとともに、篩
部材に、上記導入口に面して、該導入口より広い
巾をもつ閉塞面部を形成した振動選別機であるか
ら、振動選別機の振幅ないし振動数を大きくして
も、上記篩部材上で粒状体が起立して上記篩部材
の目孔を通過することがない。すなわち、粒状体
が起立しようとするとその上端部が上記覆板の下
面と当接するので、粒状体が所定の角度以上に起
立することがなく、従つて上記篩部材の目孔径よ
りも細い粒状体であつても、一定の長さ以上のも
のについては上記目孔を通過することを防止でき
る。また各導入口より導入された粒状体は、それ
ぞれ篩部材の閉塞面部を経て移送方向側に位置す
る目孔を通過して選別されるので、複数の篩を並
設したのと同様の作用効果を奏する。この結果、
振動選別機の処理能力を低下させることなく柱状
の粒状体をその直径および長さ別に選別すること
が可能となる。[Table] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment and can be modified in various ways. For example, in the above embodiment, the sieve members 8 and 9 are configured in a planar shape, but they may also be configured in a cylindrical shape. Moreover, the sieve member 9 may be omitted. As described above, in the present invention, a plurality of cover plates are provided above a sieve member in parallel with each other at a predetermined distance from the sieve member, and these cover plates are spaced apart from each other along the transport direction of the granular material. A vibration sorting device is provided with an inlet for introducing the granular material between each cover plate, and a sieve member is formed with a closed surface portion facing the inlet and having a width wider than the inlet. Even if the amplitude or frequency of the vibration sorter is increased, the granules will not stand up on the sieve member and pass through the holes of the sieve member. That is, when the granules try to stand up, their upper ends come into contact with the lower surface of the cover plate, so the granules do not stand up beyond a predetermined angle, and therefore the granules are finer than the pore diameter of the sieve member. Even if the length is longer than a certain length, it can be prevented from passing through the holes. In addition, the granules introduced from each inlet are sorted by passing through the closed surface of the sieve member and the holes located on the transfer direction side, so the same effect and effect as when multiple sieves are installed side by side is obtained. play. As a result,
It becomes possible to sort columnar granules according to their diameter and length without reducing the throughput of the vibration sorter.
図面は本考案の一実施例を示したものであつ
て、第１図は振動選別機の縦断面図、第２図は第
１図の―線矢視断面図、第３図は篩部材と覆
板の縦断面図、第４図は覆板による粒状体の起立
阻止作用を説明するための断面図である。
１……振動選別機、２……ケース、３……振動
モータ、４……装入口、５〜７……排出口、８，
９……篩部材、１０……覆板、１１……導入口、
１２……閉塞面部、１３……篩部、１４……粒状
体、１５……導入口の縁部、１６……閉塞面部に
対する導入口の縁部の投影点、１７……閉塞面部
の縁部、１８……篩部材８の目孔。
The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of a vibration sorter, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is a sieve member and a sieve member. FIG. 4 is a longitudinal cross-sectional view of the cover plate, and is a cross-sectional view for explaining the effect of the cover plate in preventing the granules from rising. 1...Vibration sorter, 2...Case, 3...Vibration motor, 4...Charging port, 5-7...Discharge port, 8,
9... Sieve member, 10... Covering plate, 11... Inlet port,
DESCRIPTION OF SYMBOLS 12... Obstructed surface part, 13... Sieve part, 14... Granular material, 15... Edge of inlet, 16... Projection point of the edge of inlet port with respect to the obstructed surface part, 17... Edge of obstructed surface part. , 18... Eye holes of the sieve member 8.
Claims (1)
別する振動選別機において、篩部材の上方に、該
篩部材に対して所定の間隔を保持して平行に複数
の覆板を設け、これら覆板を粒状体の移送方向に
沿つて互いに間隔を置いて配設し、各覆板間に粒
状体を導入するための導入口を設けるとともに、
篩部材に、上記導入口に面して、該導入口より広
い巾をもつ閉塞面部を形成し、篩部材と共に覆板
を振動させ該覆板と閉塞面部とによつて、篩部材
の目孔径より小径で、所定の長さより長い粒状体
が篩部材上で起立してその目孔を通過するのを阻
止するように構成したことを特徴とする振動選別
機。 ２ 篩部材の目孔径をａ、選別する粒状体の基準
長さをｂ、選別する粒状体の基準直径をｃ、篩部
材と覆板との間隙をｄとするとき、 ｄ≦bc／ａ なる関係が成立するように構成したことを特徴と
する特許請求の範囲第１項記載の振動選別機。 ３ 閉塞面部に対する導入口の縁部の投影点から
上 記閉塞面部の縁部までの距離をｅとするとき、な
る関係が成立するように構成したことを特徴とす
る特許請求の範囲第２項記載の振動選別機。[Claims] 1. In a vibrating sorter that sorts granular materials according to particle size using a vibrating sieve member, a plurality of covers are provided above the sieve member in parallel with each other at a predetermined distance from the sieve member. Provided are plates, these cover plates are arranged at intervals from each other along the transport direction of the granule, and an inlet for introducing the granule is provided between each cover plate, and
A closed surface portion facing the introduction port and having a width wider than the introduction port is formed on the sieve member, and the cover plate is vibrated together with the sieve member, and the pore diameter of the sieve member is adjusted by the cover plate and the closed surface portion. A vibration sorting machine characterized by being configured to prevent granular materials having a smaller diameter and longer than a predetermined length from standing up on a sieve member and passing through the pores of the sieve member. 2 When the pore diameter of the sieve member is a, the reference length of the granular material to be sorted is b, the reference diameter of the granular material to be sorted is c, and the gap between the sieve member and the cover plate is d, d≦bc/a. The vibration sorting machine according to claim 1, characterized in that the vibration sorting machine is configured such that a relationship is established. 3 Above the projection point of the edge of the inlet on the closed surface The vibration sorting machine according to claim 2, characterized in that the vibration sorting machine is constructed so that the following relationship holds true when the distance to the edge of the closed surface portion is e.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19506983A JPS6087882A (en) | 1983-10-18 | 1983-10-18 | Vibration sorter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19506983A JPS6087882A (en) | 1983-10-18 | 1983-10-18 | Vibration sorter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6087882A JPS6087882A (en) | 1985-05-17 |
| JPH0150472B2 true JPH0150472B2 (en) | 1989-10-30 |
Family
ID=16335034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19506983A Granted JPS6087882A (en) | 1983-10-18 | 1983-10-18 | Vibration sorter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087882A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61138516U (en) * | 1985-02-15 | 1986-08-28 | ||
| JP2646213B2 (en) * | 1987-09-29 | 1997-08-27 | 電気化学工業株式会社 | Multi-stage sieving device |
| JPH08177899A (en) * | 1994-12-27 | 1996-07-12 | Komatsu Ltd | Brake device for hydraulic motor |
| JP5803224B2 (en) * | 2011-04-06 | 2015-11-04 | 三菱レイヨン株式会社 | Vibrating sieve machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555826Y2 (en) * | 1977-10-26 | 1980-12-24 |
-
1983
- 1983-10-18 JP JP19506983A patent/JPS6087882A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6087882A (en) | 1985-05-17 |
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