JP3694307B2 - Transport device - Google Patents

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JP3694307B2
JP3694307B2 JP2004169657A JP2004169657A JP3694307B2 JP 3694307 B2 JP3694307 B2 JP 3694307B2 JP 2004169657 A JP2004169657 A JP 2004169657A JP 2004169657 A JP2004169657 A JP 2004169657A JP 3694307 B2 JP3694307 B2 JP 3694307B2
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trough
weighed
small
shutter
weighing
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JP2004250236A (en
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敏雄 林
衛吾 大久保
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マイクロシステム株式会社
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Description

本発明は、振動トラフを振動させてそのトラフ上の被計量物を計量バケットに搬送する搬送装置に関する。   The present invention relates to a conveying device that vibrates a vibrating trough and conveys an object to be weighed on the trough to a weighing bucket.

従来の搬送装置の構成例を図８に示す。
この搬送装置１００は、被計量物が投入されるホッパー１０１と、このホッパー１０１からの被計量物の流出量を調整するシャッター１０２と、このシャッター１０２から流出した被計量物を受入れる小量トラフ１０３と、この小量トラフ１０３から落下する被計量物を受入れる大量トラフ１０４と、大小量トラフ１０３,１０４に振動を与える大小量用フィーダー１０５,１０６とから構成され、搬送された被計量物は計量バケット１０７に落下するようになっている。 A configuration example of a conventional transport device is shown in FIG.
The transport apparatus 100 includes a hopper 101 into which an object to be weighed is charged, a shutter 102 that adjusts the outflow amount of the object to be weighed from the hopper 101, and a small amount trough 103 that receives the object to be weighed out from the shutter 102. And a large-volume trough 104 for receiving an object to be weighed from the small-volume trough 103, and large- and small-volume feeders 105 and 106 that vibrate the large- and small-volume troughs 103 and 104. It falls into the bucket 107.

この搬送装置１００の動作を図９を参照しつつ説明する。
図９は、それぞれ横軸に測定重量を、縦軸に振幅を取ったもので、測定重量の計測終盤に近づくに従い、それぞれの振幅が小さくされ、最初に大量トラフ１０４の振動が停止され、次に小量トラフ１０３の振動が停止されることが示されている。
即ち、前記ポッパー１０１から前記シャッター１０２を介して、粉末状の被計量物が小量トラフ１０３に供給されており、計量開始（図９の測定重量 ０）と共に大小トラフ１０４,１０３が振動し、小量トラフ１０３の被計量物が大量トラフ１０４、次いで前記計量バケット１０７に、順次、落下する。
計量終盤に、前記大量トラフ１０４の振動が停止（図９の測定重量 Ａ点）され、小量トラフ１０３のみが振動して、その小フィーダー部１０３Ａより、小量の被計量物が前記計量バケット１０７に落下して、計量の精度を出すようにしている。 The operation of the transport apparatus 100 will be described with reference to FIG.
FIG. 9 shows the measured weight on the horizontal axis and the amplitude on the vertical axis. As the end of measurement of the measured weight is approached, each amplitude is decreased, and the mass trough 104 is first stopped. It is shown that the vibration of the small amount trough 103 is stopped.
That is, a powder-like object to be weighed is supplied from the popper 101 through the shutter 102 to the small amount trough 103, and the large and small troughs 104 and 103 vibrate when the measurement is started (measured weight 0 in FIG. 9). The objects to be weighed in the small-volume trough 103 sequentially fall into the large-volume trough 104 and then into the weighing bucket 107.
At the end of the measurement, the vibration of the mass trough 104 is stopped (measured weight point A in FIG. 9), and only the small amount trough 103 is vibrated. It falls on 107 and the accuracy of measurement is taken out.

しかし、前記大量トラフ１０４の振動が停止したＡ点以後にも、小量トラフ１０３が振動していることから、被計量物が小量トラフ１０３の搬出部１０３Ｂから大量トラフ１０４に落下して、大量トラフ１０４上に粉末層の山（Ｂ部分）ができてしまい、次回の計量に影響を与える場合があった。
即ち、大量トラフ１０４からの被計量物が増大し、次回の計量時に、Ａ点以前に設定重量を超えてしまうような場合である。
計量値が計量毎に異なる場合、例えば５０ｇ計量後に１ｇを計量する場合、前記Ｂ部分の存在の影響は極めて大きなものになっていた。 However, since the small amount trough 103 vibrates after the point A where the vibration of the large amount trough 104 stops, the object to be weighed falls from the carry-out part 103B of the small amount trough 103 to the large amount trough 104, In some cases, a pile (B portion) of the powder layer is formed on the mass trough 104, which affects the next measurement.
That is, this is a case where the objects to be weighed from the mass trough 104 increase and exceed the set weight before point A at the next weighing.
When the measurement value differs for each measurement, for example, when 1 g is measured after weighing 50 g, the influence of the existence of the B portion is extremely large.

かかる問題点を解消する方法として、次のような技術が知られている。
特許文献１では、その図１に示されているように、トラフ１４の先端にストッパー４８が取付けられ、搬出端部の開閉を行い、被計量物が余分に供給ホッパ６に供給されることを防止している。 As a method for solving this problem, the following techniques are known.
In Patent Document 1, as shown in FIG. 1, a stopper 48 is attached to the tip of the trough 14, the unloading end is opened and closed, and an object to be weighed is supplied to the supply hopper 6 in excess. It is preventing.

特開平８−１８８２１８号公報（第６頁９欄 段落００４６、図１）JP-A-8-188218 (page 6, column 9, paragraph 0046, FIG. 1)

しかし、電気的に制御するストッパーを設ければ、部品点数が多くなるばかりりでなく、電気的な制御の設定、管理、維持も必要になり、それだけコスト高となる。   However, if an electrically controlled stopper is provided, not only will the number of parts increase, but it will also be necessary to set, manage and maintain electrical control, resulting in higher costs.

そこで本発明は、上記事情に鑑みなされたもので、簡単な構造で、電気的な制御の設定、管理、維持を不要とするような、擬似シャッターを備えた搬送装置を提供することを目的とする。   Accordingly, the present invention has been made in view of the above circumstances, and an object thereof is to provide a transport device including a pseudo shutter that has a simple structure and does not require setting, management, and maintenance of electrical control. To do.

上記目的を達成するため、本発明に係る搬送装置は、振動トラフを振動させてそのトラフ上の被計量物を計量バケットに搬送する搬送装置において、前記振動トラフの先端に形成され、且つ、前記計量バケットの上方に臨まされる擬似シャッターと、前記振動トラフの搬出部の端部から前記計量バケットに臨まされる小フィーダー部とを備え、前記擬似シャッターの高さは、測定重量の計量終盤での前記振動トラフの振幅と前記振動トラフ上の被計量物の層厚さの合算値と略同一値にした搬送装置であって、測定重量の計測終盤に近づくに従い、振動トラフの振幅が小さくなり、計量終盤で、被計量物が前記擬似シャッターを飛び越すことができず、前記計量バケットに落下し難くさせると共に、引続き振動する振動トラフの小フィーダー部より、被計量物が前記計量バケットに落下し続けて計量の精度が出されることを特徴とする搬送装置とした(請求項１の発明)。
また前記擬似シャッターの高さを調整可能にしたことを特徴とする搬送装置とした(請求項２の発明)。 In order to achieve the above object, a conveying device according to the present invention is a conveying device that vibrates a vibrating trough and conveys an object to be weighed on the trough to a weighing bucket, and is formed at the tip of the vibrating trough, and A pseudo shutter facing above the weighing bucket, and a small feeder portion facing the weighing bucket from an end of the unloading portion of the vibration trough, and the height of the pseudo shutter is at the end of the measurement weight measurement The vibration trough has a substantially the same value as the sum of the amplitude of the vibration trough and the layer thickness of the object to be weighed on the vibration trough. The small feeder part of the vibration trough that makes it difficult for the object to be weighed to jump over the pseudo shutter at the end of the weighing, makes it difficult to fall into the weighing bucket, and continues to vibrate Ri, and a conveying device, characterized in that the objects to be weighed weighing accuracy is issued continues to fall into the weighing bucket (invention of claim 1).
In addition, the conveying device is characterized in that the height of the pseudo shutter can be adjusted (invention of claim 2).

前記擬似シャッターは振動トラフの搬出部から直立或いは傾斜上に立設させたもので、例えば搬出部を上方に折曲げたり、搬出部に板状部材を固定したり、接着したりして構成される。よって、極めて簡単な構成となっている。
また、擬似シャッターの高さの高低により、小量トラフから大量トラフに落下する被計量物の量が異なることから、計量時間の調整などが可能となる。
また、従来の小量トラフのように小フィーダー部を中央に取付ける場合に比べ、小量トラフの製造コスト、ひいては搬送措置のコストを下げこときができる。 The pseudo shutter is erected upright or inclined from the carry-out portion of the vibration trough, and is configured, for example, by bending the carry-out portion upward, fixing a plate-like member to the carry-out portion, or bonding them. The Therefore, the configuration is extremely simple.
In addition, since the amount of the object to be weighed that falls from the small amount trough to the large amount trough varies depending on the height of the pseudo shutter, it is possible to adjust the measurement time.
In addition, the manufacturing cost of the small-volume trough, and hence the cost of the transporting measures, can be reduced compared to the case where the small feeder portion is attached to the center as in the conventional small-volume trough.

以上の各発明について、図面を参照しつつ、その構成を詳細に説明する。
図１は第１実施形態に係る搬送装置の斜視図、図２(イ)〜(ハ)は同装置の小量トラフの平面図、側面図、及び図２(イ)のＡ−Ａ断面図である。
なお、前述の図８、図９及び後述の各図において、同一の符号が示すものは同一の構成を示すものである。 About each above invention, the structure is demonstrated in detail, referring drawings.
FIG. 1 is a perspective view of a conveying apparatus according to the first embodiment, FIGS. 2A to 2C are a plan view, a side view, and a cross-sectional view taken along line AA in FIG. It is.
In addition, in FIG. 8, FIG. 9 mentioned above and each figure mentioned later, what is shown with the same code | symbol shows the same structure.

第１実施形態に係る搬送装置１は、図８に示した搬送装置と同様に、ホッパー１０１、シャッター１０２、大量トラフ１０４、大小量用フィーダー１０５、１０６を備えているが、小量トラフ２は前記小量トラフ１０３と異なり、擬似シャッター３を取付けると共に、小フィーダー部２０を小量トラフ２の搬出部２１の一端に寄せて構成されている。
前記ホッパー１０１から供給される被計量物は、前記シャッター１０２によりその供給量が制御され、前記小量トラフ２の供給部２２上に、所定厚さを備えた被計量物の層が形成される。 The transport apparatus 1 according to the first embodiment includes a hopper 101, a shutter 102, a large-volume trough 104, and large- and small-volume feeders 105 and 106, as in the transport apparatus illustrated in FIG. Unlike the small amount trough 103, the pseudo shutter 3 is attached and the small feeder portion 20 is arranged near one end of the carry-out portion 21 of the small amount trough 2.
The supply amount of the object to be weighed supplied from the hopper 101 is controlled by the shutter 102, and a layer of the object to be weighed having a predetermined thickness is formed on the supply unit 22 of the small amount trough 2. .

前記大小量用フィーダー１０５、１０６は、前記大量トラフ１０４、小量トラフ２を略上下方向に振動させる駆動手段として、例えば電磁石を振動源とする加振装置が取付けられている。   The large and small amount feeders 105 and 106 are mounted with a vibration device using, for example, an electromagnet as a vibration source as a driving means for vibrating the large amount trough 104 and the small amount trough 2 substantially vertically.

前記小量トラフ２の搬出部２１の左右の何れか一端には、小フィーダー部２０が取付けられ、前記バケット１０７に臨まされている。このような構成により、擬似シャッター３を取付けた小量トラフ２の製作コストを低減させることができるが、小フィーダー部２０を小量トラフ２の中央に取付けて、その左右に前記擬似シャッター３を配置してもよい。   A small feeder portion 20 is attached to one of the left and right ends of the carry-out portion 21 of the small amount trough 2 and faces the bucket 107. With such a configuration, the manufacturing cost of the small amount trough 2 to which the pseudo shutter 3 is attached can be reduced, but the small feeder portion 20 is attached to the center of the small amount trough 2 and the pseudo shutter 3 is mounted on the left and right sides thereof. You may arrange.

前記擬似シャッター３は、大量トラフ１０４の振動が停止され、被計量物の搬送が停止されたときに、小量トラフ２から大量トラフ１０４に被計量物が供給されないようにするもので、小量トラフ２の搬出部２１を供給部２２の底面から上方に折り込んで構成されている。   The pseudo-shutter 3 prevents the weighing object from being supplied from the small-volume trough 2 to the large-volume trough 104 when the vibration of the large-volume trough 104 is stopped and the conveyance of the weighing object is stopped. The unloading portion 21 of the trough 2 is configured to be folded upward from the bottom surface of the supply portion 22.

前記擬似シャッター３の高さは、大量トラフ１０４の停止時以降に、振動している小量トラフ２から被計量物が飛び越さないような高さであればよい。   The height of the pseudo shutter 3 may be such that the object to be weighed does not jump from the vibrating small amount trough 2 after the mass trough 104 is stopped.

前記擬似シャッター３の高さの具体的な決定方法を図３〜図５に基づいて説明する。
図３は、前記シャッター１０２により、前記小量トラフ２の供給部２２上に、所定厚さａの被計量物４の層が形成された状態を模式的に示した前記小量トラフ２の断面である。ここで「Ｘ」が、求める前記擬似シャッター３の高さを示している。
図４は、横軸に時間を取り、縦軸に振幅を取って、時間の経過と共に、大小トラフ１０４、２の変化する振幅をグラフ化したもので、「２Ｇ」は、前記小量トラフ２の場合を、「１０４Ｇ」は、前記大量トラフ１０４の場合をそれぞれ示している。
ここで振幅値「ｂ」は、前記大量トラフ１０４がその振動を停止した時点（Ｔｘ）の前記小量トラフ２の振幅を示している。 A specific method for determining the height of the pseudo shutter 3 will be described with reference to FIGS.
FIG. 3 is a cross-sectional view of the small amount trough 2 schematically showing a state in which a layer of the object 4 to be weighed having a predetermined thickness a is formed on the supply portion 22 of the small amount trough 2 by the shutter 102. It is. Here, “X” indicates the height of the pseudo shutter 3 to be obtained.
FIG. 4 is a graph in which time is plotted on the horizontal axis and amplitude is plotted on the vertical axis, and the amplitudes of the large and small troughs 104 and 2 change over time. “2G” is the small trough 2. In this case, “104G” indicates the case of the mass trough 104.
Here, the amplitude value “b” indicates the amplitude of the small-volume trough 2 at the time (Tx) when the mass trough 104 stops its vibration.

計量終盤においては、前記大量トラフ１０４の振動が停止（Ｔｘ）し、前記小量トラフ２の振動が続けられるが、Ｔｘの時点の前記小量トラフ２の振幅ｂと前記被計量物４の層厚さａとの合算値に相当する高さであれば、前記被計量物４は、擬似シャッター３を飛び越え難くなる。
よって、図５に示したように、決定されるべき擬似シャッター３の高さＸ＝ａ+ｂで求められた値と略同一であればよいことになる。 At the end of the measurement, the vibration of the mass trough 104 stops (Tx) and the vibration of the small trough 2 continues, but the amplitude b of the small trough 2 at the time of Tx and the layer of the object 4 to be weighed If the height is equivalent to the total value with the thickness a, the object 4 is difficult to jump over the pseudo shutter 3.
Therefore, as shown in FIG. 5, it is sufficient if it is substantially the same as the value obtained by the height X = a + b of the pseudo shutter 3 to be determined.

次に上記構成の搬送装置１の動作例を説明する。
前記搬送装置１００と同様に動作する計量開始から計量終盤までは前記小量トラフ２の振幅は振幅ｂより大きいので、被計量物４は、前記擬似シャッター３を超えて前記大量トラフ１０４に落下する。
計量終盤で、前記大量トラフ１０４上の被計量物４が、前記計量バケット１０７に落下し終えると共に、大量トラフ１０４の振動が停止する（Ｔｘの時点）と、前記小量トラフ２の被計量物４は、前記擬似シャッター３を飛び越すことができず、前記大量トラフ１０４に落下し難くなる。
一方、引続き振動する前記小量トラフ２の小フィーダー部２０により被計量物４が、計量バケット１０７に落下し続け、計量の精度が出される。 Next, an example of the operation of the transport apparatus 1 having the above configuration will be described.
Since the amplitude of the small trough 2 is larger than the amplitude b from the start of measurement to the end of measurement, which operates in the same manner as the transport device 100, the object to be weighed 4 falls over the pseudo shutter 3 and onto the large trough 104. .
When the weighing object 4 on the mass trough 104 finishes dropping into the weighing bucket 107 and the mass trough 104 stops oscillating (at time Tx) at the end of weighing, the weighing object of the small mass trough 2 is stopped. 4 cannot jump over the pseudo-shutter 3 and is difficult to fall into the mass trough 104.
On the other hand, the object to be weighed 4 continues to drop into the weighing bucket 107 by the small feeder portion 20 of the small-volume trough 2 that continues to vibrate, and the accuracy of weighing is obtained.

よって、上記搬送装置１によれば、
（１） 前記Ｔｘの時点では、大量トラフ１０４上には、殆ど被計量物４が残らなくなり、次回の計量に影響を及ぼすことがない。
（２） 同一の計量値の繰り返し測定の場合のみならず、計量毎に計量値が著しく異なる場合であっても、前回の計量時の被計量物４が大量トラフ１０４に残らないので、精度よい計量が可能になる。例えば、５０ｇ計量後に、１ｇを計量する場合である。
（３） 前記擬似シャッター３は、小量トラフ２の搬出部２１を折り曲げるだけであるので、簡単な構成で、その製作、清掃等の管理、維持が容易である。
（４） 従来のように、小フィーダー部を小量トラフの中央に取付けると、それぞれ左右に擬似シャッターを設ける必要があり、製作コストが上昇するが、前記小量トラフ２の小フィーダー部２０は端に寄せられているので、小量トラフの製作コストを低減させることができる。 Therefore, according to the transfer device 1,
(1) At the time point Tx, the to-be-measured object 4 hardly remains on the mass trough 104 and does not affect the next measurement.
(2) Not only in the case of repeated measurement of the same measurement value, but also in the case where the measurement value is significantly different for each measurement, since the object 4 to be weighed at the previous measurement does not remain in the mass trough 104, the accuracy is high. Weighing becomes possible. For example, 1 g is measured after weighing 50 g.
(3) Since the pseudo shutter 3 only bends the carry-out portion 21 of the small-volume trough 2, it is easy to manage and maintain such as production and cleaning with a simple configuration.
(4) If the small feeder portion is attached to the center of the small amount trough as in the prior art, it is necessary to provide pseudo shutters on the left and right, respectively, which increases the manufacturing cost, but the small feeder portion 20 of the small amount trough 2 is Since it is brought close to the end, the manufacturing cost of a small amount of trough can be reduced.

次に、第２実施形態の構成例を図６に基づいて説明する。
この実施形態が、第１実施形態と異なる点は、前記擬似シャッター３の高さを調整可能にした点である。
この高さ調整機能付きシャッター３Ａは、シャッター３の正面又は裏面に、スライド板５をスライド自在に固着できるようにしたもので、そのスライド板５或いはシャッター３側に、上下方向にネジ固定用の長孔等が形成されている。
よって、前記シャッター１０２の流出量の調整、各大小量トラフ２、１０４の振幅強さの調整に伴う、擬似シャッター３Ａの高さの微調整が可能である。
その他、前記高さＸより、若干高くすれば、計量時間の増大になるが、より計量精度が高まる。
このことは、前記Ｔｘの時点より、若干前の時点Ｔｘ´の小量トラフ２の振幅ｂ´と前記被計量物４の層厚さａとの合算値を、擬似シャッター３の高さに決定してもよいことを意味する。
なお、高さＸより、逆に若干低くすれば、計量時間の短縮になる。 Next, a configuration example of the second embodiment will be described with reference to FIG.
This embodiment is different from the first embodiment in that the height of the pseudo shutter 3 can be adjusted.
This shutter 3A with a height adjusting function is configured such that a slide plate 5 can be slidably fixed to the front or back surface of the shutter 3, and is used for fixing screws in the vertical direction on the slide plate 5 or the shutter 3 side. A long hole or the like is formed.
Therefore, the height of the pseudo shutter 3A can be finely adjusted in accordance with the adjustment of the outflow amount of the shutter 102 and the adjustment of the amplitude strength of the large and small amount troughs 2 and 104.
In addition, if the height is slightly higher than the height X, the measurement time increases, but the measurement accuracy increases.
This is because the sum of the amplitude b ′ of the small amount trough 2 at the time Tx ′ slightly before the time Tx and the layer thickness a of the object 4 is determined as the height of the pseudo shutter 3. It means you may do it.
If the height X is slightly lower, the measuring time is shortened.

その他、板状のシャッター３の低部と搬出部２１の底面とをヒンジ結合し、シャッター３の傾斜角度を調整して、高さを調整するようにしてもよい。   In addition, the lower part of the plate-like shutter 3 and the bottom surface of the carry-out part 21 may be hinged to adjust the inclination angle of the shutter 3 to adjust the height.

次に、別例に係る実施形態を説明する。
上記各実施形態における小量トラフ２の先端、即ち、前記擬似シャッター３、３Ａを前記大量トラフ１０４の先端の上方まで延ばし、前記擬似シャッター３を前記バケット１０７の上方に臨ませて前記擬似シャッター３Ｂを形成し、前記大量トラフ１０４を除去して、搬送装置を構成してもよい（図７参照）。
即ち、この実施形態は、小量トラフ２と大量トラフ１０４を共通化して振動トラフ２Ａとし、上述の図４の大量トラフ１０４振動停止時点（Ｔｘ）を想定して、この時点のトラフ２Ａの振幅ｂを基準に、前記擬似シャッター３Ｂの高さを決定すればよい。
その他の構成は、上記各実施形態と同一であって、同一の作用効果を奏するほか、搬送装置の製造コスト、維持管理コスト等の削減が可能になる。 Next, an embodiment according to another example will be described.
The tip of the small amount trough 2 in each of the above embodiments, that is, the pseudo shutter 3, 3 A is extended above the tip of the mass trough 104, and the pseudo shutter 3 is faced above the bucket 107 so as to face the pseudo shutter 3 B. May be formed, and the mass trough 104 may be removed to constitute a conveying device (see FIG. 7).
That is, in this embodiment, the small trough 2 and the large trough 104 are made into a vibration trough 2A, and the large trough 104 vibration stop time (Tx) in FIG. 4 is assumed, and the amplitude of the trough 2A at this time is assumed. What is necessary is just to determine the height of the said pseudo shutter 3B on the basis of b.
Other configurations are the same as those of the above-described embodiments. In addition to achieving the same operational effects, it is possible to reduce the manufacturing cost and maintenance cost of the transfer device.

第１実施形態に係る搬送装置の斜視図、The perspective view of the conveying apparatus which concerns on 1st Embodiment, (イ)〜(ハ) 同搬送装置の小量トラフの平面図、側面図、Ａ-Ａ線断面図、(A) to (c) A plan view, a side view, a cross-sectional view taken along line AA of the small-volume trough of the transport device, 同装置の擬似シャッターの高さを決定する際に説明図、Explanatory drawing when determining the height of the pseudo shutter of the device, 同装置の擬似シャッターの高さを決定する際に説明図、Explanatory drawing when determining the height of the pseudo shutter of the device, 同装置の擬似シャッターの高さを決定する際に説明図、Explanatory drawing when determining the height of the pseudo shutter of the device, 第２実施形態の小量トラフの説明図、Explanatory drawing of the small amount trough of 2nd Embodiment, (イ)〜(ハ) 別例に係る搬送装置の小量トラフの平面図、側面図、Ａ−Ａ線断面図、(A) to (C) A plan view, a side view, a cross-sectional view taken along line AA of a small-volume trough of a transport apparatus according to another example 従来の搬送装置の斜視図、A perspective view of a conventional transport device, 従来の搬送装置の説明図。Explanatory drawing of the conventional conveying apparatus.

符号の説明Explanation of symbols

１ １００ 搬送装置 １０１ ホッパー
１０２ シャッター ２ ２Ａ １０３ 小量トラフ
１０４ 大量トラフ １０５、１０６ 大小量用フィーダー
１０７ 計量バケット
２０ 小フィーダー部 ２１ 搬出部
２２ 供給部
３ ３Ａ ３Ｂ 擬似シャッター ４ 被計量物
５ スライド板 DESCRIPTION OF SYMBOLS 1 100 Conveyance apparatus 101 Hopper 102 Shutter 2 2A 103 Small amount trough 104 Large amount trough 105,106 Feeder for large and small amounts 107 Weighing bucket 20 Small feeder part 21 Unloading part 22 Supply part 3 3A 3B Pseudo shutter 4 Object to be measured 5 Slide plate

Claims (2)

振動トラフを振動させてそのトラフ上の被計量物を計量バケットに搬送する搬送装置において、In a conveying device that vibrates a vibrating trough and conveys an object to be weighed on the trough to a weighing bucket,
前記振動トラフの先端に形成され、且つ、前記計量バケットの上方に臨まされる擬似シャッターと、  A pseudo shutter formed at the tip of the vibration trough and facing above the weighing bucket;
前記振動トラフの搬出部の端部から前記計量バケットに臨まされる小フィーダー部とを備え、  A small feeder portion facing the weighing bucket from an end portion of the carrying-out portion of the vibration trough,
前記擬似シャッターの高さは、測定重量の計量終盤での前記振動トラフの振幅と前記振動トラフ上の被計量物の層厚さの合算値と略同一値にした搬送装置であって、  The height of the pseudo shutter is a conveying device that is substantially the same value as the sum of the amplitude of the vibration trough at the end of measurement of the measured weight and the layer thickness of the object to be weighed on the vibration trough,
測定重量の計測終盤に近づくに従い、振動トラフの振幅が小さくなり、  As you approach the end of the measurement weight measurement, the vibration trough amplitude decreases,
計量終盤で、被計量物が前記擬似シャッターを飛び越すことができず、前記計量バケットに落下し難くさせると共に、  At the end of the weighing, the object to be weighed cannot jump over the pseudo shutter, making it difficult to fall into the weighing bucket,
引続き振動する振動トラフの小フィーダー部より、被計量物が前記計量バケットに落下し続けて計量の精度が出されることを特徴とする搬送装置。  A conveying apparatus characterized in that weighing accuracy is obtained by continuously dropping an object to be weighed into the weighing bucket from a small feeder portion of a vibrating trough that continuously vibrates. 前記擬似シャッターの高さを調整可能にしたことを特徴とする請求項１に記載の搬送装置。   The transport apparatus according to claim 1, wherein a height of the pseudo shutter is adjustable.
JP2004169657A 2004-06-08 2004-06-08 Transport device Expired - Fee Related JP3694307B2 (en)

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