JPH09264776A - Weighing apparatus - Google Patents

Weighing apparatus

Info

Publication number
JPH09264776A
JPH09264776A JP8072641A JP7264196A JPH09264776A JP H09264776 A JPH09264776 A JP H09264776A JP 8072641 A JP8072641 A JP 8072641A JP 7264196 A JP7264196 A JP 7264196A JP H09264776 A JPH09264776 A JP H09264776A
Authority
JP
Japan
Prior art keywords
gate
pin
hopper
guide pin
guide
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.)
Granted
Application number
JP8072641A
Other languages
Japanese (ja)
Other versions
JP3629089B2 (en
Inventor
Takashi Kimura
隆 木村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ishida Co Ltd
Original Assignee
Ishida Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ishida Co Ltd filed Critical Ishida Co Ltd
Priority to JP07264196A priority Critical patent/JP3629089B2/en
Publication of JPH09264776A publication Critical patent/JPH09264776A/en
Application granted granted Critical
Publication of JP3629089B2 publication Critical patent/JP3629089B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce washing labor by driving a guide pin by a rotary drive source and providing a gate so that the relative moving direction of the guide pin within a guide groove becomes parallel to the opening and closing center axis of the gate. SOLUTION: When a rotary drive source is started to revolve a guide pin 7, an upper guide part 12 receives upward pressing force from the pin 7 during a period when the pin 7 is moved from the most falling position to the most rising position. By this constitution, a gate 2 provided at the same position is shaken in an open direction centering around a gate shaft 9. When the pin 7 reaches the most rising position, the gate 2 becomes a full open state. When the pin 7 present at the most rising position is revolved to the most falling position, a lower guide part 13 receives downward pressing force from the pin 7 and the gate 2 is shaken in a closing direction. When the pin 7 reaches the most falling position, the gate 2 is closed. Even if driving force is not applied to the pin 7, the gate 2 is not opened from the inside. Therefore, the gate 2 is not opened freely and toggle function can be imparted.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、組合せ計量等の計
量作業を行なう計量装置に関し、詳しくはこれに装備さ
れたホッパのゲート開閉機構に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weighing device for performing weighing work such as combination weighing, and more particularly to a gate opening / closing mechanism of a hopper equipped therein.

【0002】[0002]

【従来の技術】各種商品の自動計量に用いられる装置と
して、組合せ計量装置がある。この装置の多くは、図5
に示すように、図示しない機台上に配置された支持台
(40)の中央部に加振器(42)を介して分散テーブル
(41)を配置し、分散テーブル(41)の周囲に別の加振
器(44)を介して複数個の供給トラフ(43)を放射状に
配置すると共に、各トラフ(43)の先端部下方にこのト
ラフ(43)と同数のプールホッパ(45)及び計量ホッパ
(46)を上下に2段配置した構造である。
2. Description of the Related Art As a device used for automatic weighing of various products, there is a combination weighing device. Most of this equipment is shown in FIG.
As shown in Fig. 4, the dispersion table (41) is arranged in the center of the support table (40) arranged on the machine base (not shown) via the vibrator (42), and the dispersion table (41) is separated around the table. A plurality of supply troughs (43) are radially arranged via the shaker (44) of the same, and the same number of pool hoppers (45) and weighing are provided below the tip of each trough (43). It has a structure in which the hopper (46) is arranged in two stages, one above the other.

【0003】この装置における計量手順は以下の通りで
ある。すなわち、先ず分散テーブル(41)を加振器(4
2)で加振してテーブル(41)上の被計量物を各供給ト
ラフ(43)に分散流入させると共に、これを加振器(4
4)で加振してトラフ(43)の下流側に搬送し、各トラ
フ(43)の先端から落下した被計量物を上段の各プール
ホッパ(45)内に収納する。次いで、プールホッパ(4
5)を選択的に開いてその内部の計量物を下段の計量ホ
ッパ(46)に供給し、各計量ホッパ(46)に個別に設け
たロードセル(図示省略)でその重量を計量する。次に
各計量ホッパ(46)での計量値の組合せの中から合計重
量が目標値に等しいか、目標値に最も近い最適な組合せ
を選定し、選定された組合せに対応する計量ホッパ(4
6)を開いて被計量物を一斉に排出する。これを計量ホ
ッパ(46)の下方に配置した逆円錐状の集合シュート
(47)で集め、包装工程等の次工程に搬送する。
The weighing procedure in this device is as follows. That is, first, the dispersion table (41) is set to the shaker (4
2) It is vibrated in order to disperse the objects to be weighed on the table (41) into the supply troughs (43) in a distributed manner,
In 4), it is vibrated and conveyed to the downstream side of the trough (43), and the objects to be weighed dropped from the tip of each trough (43) are stored in each upper pool hopper (45). Then pool hopper (4
5) is selectively opened to supply the objects to be weighed therein to the weighing hopper (46) in the lower stage, and the weight is weighed by a load cell (not shown) individually provided in each weighing hopper (46). Next, from the combinations of weighing values in each weighing hopper (46), select the optimum combination whose total weight is equal to or closest to the target value, and select the weighing hopper (4
6) Open to discharge the objects to be weighed all at once. These are collected by an inverted cone-shaped collecting chute (47) arranged below the weighing hopper (46) and conveyed to the next step such as a packaging step.

【0004】図6は、上述したプールホッパ(45)及び
計量ホッパ(46)の一構造例である。同図(a)に示す
ように、これらのホッパ(45)(46)は、通常、角筒状
の本体(50)と、その側面に設けたゲート軸(51)(5
1)で回転可能に枢支されたゲート(52)(52)とで構
成される。両ゲート(52)は、ゲート軸(51)を中心と
して閉じ位置(a図)と開き位置(b図)との間を揺動
し、本体(50)の下部開口を閉塞・開放する。従来で
は、このようなゲート(52)の開閉運動を、エアシリン
ダ(54)の進退運動を複数のリンク材からなるリンク機
構(55)で揺動運動に変換して得ている。すなわち、開
き動作時には、エアシリンダ(54)のピストンロッドを
進出させ、駆動リンク(56)の押圧部(57)を押圧して
ゲート(52)を開き、閉じ動作時には、エアシリンダ
(54)のピストンロッドを退入させてその先端部を押圧
部(57)から離反させ、開き動作時に蓄勢したバネ(5
8)の弾性力を利用してゲート(52)を閉じるようにし
ている。
FIG. 6 is a structural example of the pool hopper (45) and the weighing hopper (46) described above. As shown in FIG. 3A, these hoppers (45) (46) are usually a rectangular tube-shaped main body (50) and a gate shaft (51) (5) provided on the side surface thereof.
It is composed of a gate (52) (52) that is rotatably supported in 1). Both gates (52) swing about a gate shaft (51) between a closed position (Fig. A) and an open position (Fig. B) to close / open a lower opening of the main body (50). Conventionally, such opening / closing movement of the gate (52) is obtained by converting the forward / backward movement of the air cylinder (54) into a swing movement by a link mechanism (55) composed of a plurality of link members. That is, during the opening operation, the piston rod of the air cylinder (54) is advanced to press the pressing portion (57) of the drive link (56) to open the gate (52), and during the closing operation, the air cylinder (54) of the air cylinder (54) is opened. The piston rod is retracted and its tip is separated from the pressing part (57), and the spring (5
The elastic force of 8) is used to close the gate (52).

【0005】[0005]

【発明が解決しようとする課題】ところで、この種の計
量装置では、被計量物が食品類である場合が多く、食品
衛生上、定期的な洗浄作業が欠かせない。そのため、従
来では、プールホッパや計量ホッパをフレームに引っ掛
けるようにして取付け、洗浄時にはこれらを簡単に取り
外し可能とし、個々のホッパ並びに装置本体を入念に洗
浄できるようにしている。
By the way, in this type of weighing device, the objects to be weighed are often foods, and regular cleaning work is essential for food hygiene. Therefore, conventionally, a pool hopper and a weighing hopper are hooked on a frame so that they can be easily removed at the time of cleaning, so that the individual hoppers and the apparatus main body can be carefully cleaned.

【0006】ところが、従来装置では、ホッパを取り外
す際にエアシリンダ(54)と、これに駆動される駆動リ
ンク(56)との間でホッパ側の機構と装置本体側の機構
とが分離される。そのため、取り外したホッパには多数
のリンク材やバネ(58)が付属し、これらが邪魔になる
ためにホッパの洗浄作業が行ないにくくなる欠点があっ
た。
However, in the conventional apparatus, when the hopper is removed, the mechanism on the hopper side and the mechanism on the apparatus body side are separated between the air cylinder (54) and the drive link (56) driven by the air cylinder (54). . Therefore, a large number of link materials and springs (58) are attached to the removed hopper, which has a drawback that it becomes difficult to clean the hopper because they interfere with each other.

【0007】また、ホッパを取り外すと、バネ(58)の
弾性力によりゲート(52)が閉じ状態に保持されるた
め、ゲート(52)の内面等を洗浄する際には、バネ(5
8)の弾性力に抗してゲート(52)を押し広げながら本
体(50)内に手を差し入れて洗浄しなければならず、作
業が面倒である。特に、ゲート(52)が全閉位置にある
とリンク中のトグル機構(59)がデッドポイントに達し
てセルフロックするため(図6(a)参照)、かかる洗
浄作業がより一層困難化する。すなわち、作業者は、バ
ネ(58)の弾性力に抗しながら押圧部(57)をホッパ側
に押圧してロックを解除し、この状態に保持したままホ
ッパ内に手を差し入れてゲート内面を洗浄するという極
めて煩雑な作業を必要とする。従って、ユーザーサイド
からの改善の要望も多かった。
When the hopper is removed, the elastic force of the spring (58) holds the gate (52) in a closed state. Therefore, when cleaning the inner surface of the gate (52) and the like, the spring (5
The work is troublesome because it is necessary to insert the hand into the main body (50) while pushing the gate (52) wide against the elastic force of 8) to wash it. Particularly, when the gate (52) is at the fully closed position, the toggle mechanism (59) in the link reaches a dead point and self-locks (see FIG. 6A), which makes the cleaning work even more difficult. That is, an operator pushes the pressing portion (57) toward the hopper side while releasing the lock while resisting the elastic force of the spring (58), and while keeping this state, inserts a hand into the hopper to hold the inner surface of the gate. It requires extremely complicated work of cleaning. Therefore, there were many requests from users for improvement.

【0008】そこで、本発明では、洗浄労力を軽減する
ことのできる計量装置の提供を目的とする。具体的に
は、洗浄時等において、ホッパを装置本体から取り外し
た際にも、ホッパにリンク機構やバネ等が付属せず、ま
た、取り外し状態ではゲートに弾性力等が作用せず、ゲ
ートがフリーとなって自由に動かすことのできる計量装
置の提供を目的とする。
Therefore, an object of the present invention is to provide a weighing device capable of reducing the cleaning labor. Specifically, even when the hopper is removed from the main body during cleaning, the hopper does not come with a link mechanism or a spring, and when the hopper is removed, elastic force does not act on the gate and The purpose is to provide a weighing device that is free and can be moved freely.

【0009】[0009]

【課題を解決するための手段】上記目的を達成するた
め、本発明では、ホッパ本体の下部開口を開閉するゲー
トを有するホッパが装備された計量装置において、案内
ピンと、この案内ピンと相対移動可能に係合する案内溝
のうちの何れか一方をゲートに設け、他方を、前記一方
がゲートの開閉中心軸に対して直交する方向に揺動する
ように回転駆動源の駆動軸に連結して、当該駆動軸の駆
動でゲートを開閉させるようにした。
In order to achieve the above object, according to the present invention, in a weighing device equipped with a hopper having a gate for opening and closing a lower opening of a hopper body, a guide pin and a relative movement of the guide pin are provided. One of the engaging guide grooves is provided in the gate, and the other is connected to the drive shaft of the rotary drive source so that the one swings in a direction orthogonal to the opening / closing center axis of the gate, The gate is opened and closed by driving the drive shaft.

【0010】このようにゲートの開き動作のみならず、
閉じ動作をも回転駆動源の駆動力で行なうようにすれ
ば、従来装置で必須であったバネが不要となる。その結
果、洗浄時においてホッパを装置本体から取り外すと、
ゲートが弾性力の作用しないフリー状態となるので、従
来洗浄しにくかったゲートやホッパ本体の内面等の洗浄
が容易に行なえるようになる。
In this way, not only the opening operation of the gate,
If the closing operation is also performed by the driving force of the rotary drive source, the spring, which is indispensable in the conventional device, becomes unnecessary. As a result, when the hopper is removed from the machine body during cleaning,
Since the gate is in a free state where no elastic force acts, it is possible to easily clean the inner surface of the gate and the hopper body, which has been difficult to clean conventionally.

【0011】案内ピンを回転駆動源で駆動すると共に、
案内溝を、当該溝内での案内ピンの相対移動方向がゲー
トの開閉中心軸と平行になるようにしてゲートに設け
る。この時には、案内ピンを公転運動させるとよい。
The guide pin is driven by a rotary drive source, and
The guide groove is provided in the gate such that the relative movement direction of the guide pin in the groove is parallel to the opening / closing center axis of the gate. At this time, it is advisable to orbit the guide pin.

【0012】また、案内溝を回転駆動源で駆動すると共
に、案内ピンを、その軸方向がゲートの開閉中心軸と平
行になるようにしてゲートに設ける。この時には、案内
溝を揺動運動させるとよい。
Further, the guide groove is driven by a rotary drive source, and the guide pin is provided on the gate such that its axial direction is parallel to the opening / closing center axis of the gate. At this time, it is preferable to swing the guide groove.

【0013】[0013]

【発明の実施の形態】以下、本発明にかかる計量装置の
実施形態を図1乃至図6及び図8に基づいて説明する。
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a weighing device according to the present invention will be described below with reference to FIGS. 1 to 6 and 8.

【0014】本発明では、ホッパ(1)の構成部品であ
るゲート(2)の開閉駆動源として、従来のエアシリン
ダの代わりにモータ等の回転駆動源(4:図3参照)を
使用する。回転駆動源(4)とホッパ(1)との間に
は、回転駆動源(4)の駆動力をゲート(2)の閉じ動
作及び開き動作に変換すべく、案内ピン(7)及び案内
溝(11)からなる変換機構(3)が設けられる。
In the present invention, a rotary drive source (4: see FIG. 3) such as a motor is used as an opening / closing drive source for the gate (2) which is a component of the hopper (1), instead of the conventional air cylinder. Between the rotary drive source (4) and the hopper (1), a guide pin (7) and a guide groove are provided in order to convert the driving force of the rotary drive source (4) into a closing operation and an opening operation of the gate (2). A conversion mechanism (3) consisting of (11) is provided.

【0015】回転駆動源(4)は、後述するように装置
本体側の静止部材に固定され、その出力軸には図1に示
すように、ホッパ(1)に向けて延びる駆動軸(5)が
連結されている。この駆動軸(5)には、これと直交す
る方向に延びる連結腕(6)の一端部が固定され、さら
に連結腕(6)の他端部に駆動軸(5)と平行に配置し
た案内ピン(7)が装着されている。回転駆動源(4)
を起動して駆動軸(5)を回転させると、案内ピン
(7)は駆動軸(5)を中心としてその周りを公転す
る。
The rotary drive source (4) is fixed to a stationary member on the apparatus main body side as described later, and its output shaft has a drive shaft (5) extending toward the hopper (1) as shown in FIG. Are connected. One end of a connecting arm (6) extending in a direction orthogonal to the drive shaft (5) is fixed to the drive shaft (5), and a guide arranged at the other end of the connecting arm (6) in parallel with the drive shaft (5). Pin (7) is fitted. Rotary drive source (4)
When the drive shaft (5) is rotated by activating, the guide pin (7) revolves around the drive shaft (5).

【0016】ゲート(2)の背面(ゲートの装置本体側
の面であって、案内ピン(7)と対向する面)には、案
内溝(11)が設けられる。この案内溝(11)は、ゲート
(2)の開閉中心軸(9:ゲート軸)の軸芯方向に沿っ
て上下に離隔配置したピン状の案内部(12)(13)間に
形成される。案内溝(11)に挿入した案内ピン(7)
は、案内部(12)(13)とその上下で係合し、且つ、ゲ
ート軸(9)の軸芯方向に沿ってスライド可能である。
両案内部(12)(13)は、ゲート(2)背面に装着した
一対のブラケット(14)によって支持されている。
A guide groove (11) is provided on the back surface of the gate (2) (the surface of the gate on the apparatus body side, which faces the guide pin (7)). The guide groove (11) is formed between pin-shaped guide portions (12) (13) vertically spaced apart from each other along the axial direction of the opening / closing center axis (9: gate axis) of the gate (2). . Guide pin (7) inserted in guide groove (11)
Are engaged with the guide portions (12) and (13) above and below and are slidable along the axial direction of the gate shaft (9).
Both guide parts (12) (13) are supported by a pair of brackets (14) mounted on the back surface of the gate (2).

【0017】案内溝(11)の幅寸法は、案内ピン(7)
が挿入可能となる寸法であればよく、案内ピン(7)の
直径以上であればよいが、より望ましくは案内ピン
(7)との間に隙間が形成されないよう当該直径と同一
寸法とする。また、案内部(12)(13)の長さは、案内
ピン(7)の公転運動がブラケット(14)によって阻害
されないよう、案内ピン(7)の公転直径以上に設定す
る。
The width of the guide groove (11) is determined by the guide pin (7).
Should have a size such that the guide pin (7) can be inserted, and may be equal to or larger than the diameter of the guide pin (7). Further, the lengths of the guide portions (12) (13) are set to be equal to or greater than the revolution diameter of the guide pin (7) so that the revolution movement of the guide pin (7) is not hindered by the bracket (14).

【0018】案内ピン(7)には、その公転中に常時双
方の案内部(12)(13)と接触できるよう十分な長さを
持たせる。具体的には、案内ピン(7)が何れの位置に
あっても、その先端部が、案内部(12)(13)の揺動軌
跡を越えてこれよりもホッパ(1)側に達する長さに設
定する。また、案内ピン(7)が案内溝(11)内をゲー
ト軸方向にスライドすると、ゲート(2)の開閉に伴っ
て案内ピン(7)が当該スライド方向と直交する方向に
も相対移動するので、かかる相対移動を許容できるよう
案内ピン(7)の先端部と、ゲート(2)の背面との間
にも十分な空間を確保しておく。
The guide pin (7) has a sufficient length so that it can always come into contact with both guide portions (12) and (13) during its revolution. Specifically, regardless of the position of the guide pin (7), the tip of the guide pin (7) extends beyond the swing locus of the guide parts (12) and (13) to reach the hopper (1) side. Set to Further, when the guide pin (7) slides in the guide groove (11) in the gate axial direction, the guide pin (7) also moves relatively in the direction orthogonal to the sliding direction as the gate (2) opens and closes. In order to allow such relative movement, a sufficient space is secured between the tip of the guide pin (7) and the back surface of the gate (2).

【0019】さらに、案内ピン(7)は、その公転運動
によって生じる押圧力が効率よくゲート(2)の開閉運
動に変換されるよう、その軸方向を、ゲート軸(9)と
上下の案内部(12)(13)とを結ぶ線に対してできるだ
け平行に近付けて配置するのが望ましい。
Further, the guide pin (7) has its axial direction in relation to the gate shaft (9) and the upper and lower guide portions so that the pressing force generated by the revolving motion is efficiently converted into the opening / closing motion of the gate (2). (12) It is desirable to place them as close as possible to the line connecting (13).

【0020】図4にホッパ(1)の取付け構造の一例を
示す。図示のように、ホッパ(1)の本体(15)には、
ゲート軸(9)の軸芯方向に離隔させて、一対の取付け
部材(20)が固定される(図面では一方の取付け部材の
みを図示している)。一方、装置本体側には、回転駆動
源(4)を支持する支持基体(21)がロードセル(22)
を介して装置本体の静止部材、例えば支持台(23)に釣
り下げ状態で取付けられている。支持基体(21)には、
両取付け部材(20)と同様にゲート軸(9)の軸芯方向
に離隔させた一対の係止部材(24)が固定されており、
この係止部材(24)の先端部には切欠き穴状の被係合部
(25)がそれぞれ形成されている。両取付け部材(20)
の側面には、上下に離隔させて突起状の係合部(26)
(27)が形成されており、このうちの上方の係合部(2
6)は、係止部材(24)の被係合部(25)に嵌め込ま
れ、下方の係合部(27)は係止部材(24)の下端面を係
止してホッパ(1)を所定の位置及び姿勢に位置決め保
持している。
FIG. 4 shows an example of a mounting structure for the hopper (1). As shown, the main body (15) of the hopper (1) is
The pair of mounting members (20) are fixed to be separated from each other in the axial direction of the gate shaft (9) (only one mounting member is shown in the drawing). On the other hand, on the apparatus main body side, a support base (21) for supporting the rotary drive source (4) is provided with a load cell (22).
It is attached in a hanging state to a stationary member of the apparatus body, for example, a support base (23) via. The supporting substrate (21) includes
A pair of locking members (24), which are separated in the axial direction of the gate shaft (9), are fixed in the same manner as the both mounting members (20),
A notched hole-shaped engaged portion (25) is formed at the tip of the locking member (24). Both mounting members (20)
On the side surface of the, the protrusion-like engaging part (26) that is separated vertically
(27) is formed, of which the upper engaging part (2
6) is fitted into the engaged portion (25) of the locking member (24), and the lower engaging portion (27) locks the lower end surface of the locking member (24) to lock the hopper (1). Positioned and held in a predetermined position and posture.

【0021】この取付け構造であれば、支持基体(2
1)、回転駆動源(4)、ホッパ(1)、取付け部材(2
0)及び係止部材(24)の全ての重さがロードセル(2
2)に負荷されるので、この重さと被計量物を投入した
後の全体の重さとを計測することにより、その差から被
計量物の重量を検知することができる。
With this mounting structure, the supporting base (2
1), rotary drive source (4), hopper (1), mounting member (2
0) and locking member (24) all weigh the load cell (2
Since the load is applied to 2), the weight of the object to be weighed can be detected from the difference between this weight and the total weight of the object to be weighed.

【0022】以上の構成において、回転駆動源(4)を
起動して案内ピン(7)を例えば時計回りに公転させる
と、先ず、案内ピン(7)が最下降位置(図3に実線及
び破線で示す)から最上昇位置(二点鎖線で示す)に移
動する間は、上方の案内部(12)が案内ピン(7)から
上向きの押圧力を受ける。これにより、閉じ位置(実線
で示す)にあるゲート(2)がゲート軸(9)を中心と
して開き方向に揺動する。これに伴い、案内部(12)
(13)で上下を拘束された案内ピン(7)が、案内溝
(11)内をその中心から、装置本体側から見て左側にス
ライドし、続いて逆方向にスライドして中心位置に戻
る。案内ピン(7)が最上昇位置に達すると、ゲート
(2)が全開状態(二点鎖線で示す)になる。
In the above structure, when the rotary drive source (4) is activated to orbit the guide pin (7) clockwise, for example, first, the guide pin (7) is at the lowest position (solid line and broken line in FIG. 3). The upper guide portion (12) receives an upward pressing force from the guide pin (7) during the movement from the position (indicated by) to the highest position (indicated by the chain double-dashed line). As a result, the gate (2) in the closed position (shown by the solid line) swings in the opening direction about the gate shaft (9). Along with this, the guide (12)
The guide pin (7), which is restrained from above and below by (13), slides in the guide groove (11) from its center to the left side when viewed from the device body side, and then slides in the opposite direction to return to the center position. . When the guide pin (7) reaches the maximum raised position, the gate (2) is in a fully opened state (shown by a chain double-dashed line).

【0023】次いで、回転駆動源を同方向に起動し、最
上昇位置にある案内ピン(7)を最下降位置まで公転さ
せると、下方の案内部(13)が案内ピン(7)から下向
きの押圧力を受け、ゲート(2)が閉じ方向に揺動す
る。この時、案内ピン(7)は、案内溝(11)の中心部
から右側にスライドし、やがて逆方向にスライドして中
心位置に戻る。案内ピン(7)が最下降位置に達する
と、ゲート(2)が完全に閉じる。この時、案内ピン
(7)が最下降位置、すなわちデッドポイントにあって
セルフロックされるので、仮に回転駆動源(4)を停止
し、案内ピン(7)に何らの駆動力を付与しなくても、
ゲート(2)をその内面側から押し開くことはできな
い。従って、ゲート(2)が被計量物の重みで勝手に開
くことはなく、何ら特別な機構を追加しなくてもトグル
機能を付与することができる。もちろんゲートが閉じた
後も回転駆動源(4)を全閉直前と同方向に駆動して回
転トルクを付与しても、同様のロック機能を付与するこ
とができる。
Next, when the rotary drive source is started in the same direction and the guide pin (7) at the highest position is revolved to the lowest position, the lower guide portion (13) moves downward from the guide pin (7). Upon receiving the pressing force, the gate (2) swings in the closing direction. At this time, the guide pin (7) slides to the right from the center of the guide groove (11) and then slides in the opposite direction to return to the center position. When the guide pin (7) reaches the lowest position, the gate (2) is completely closed. At this time, since the guide pin (7) is at the lowest position, that is, at the dead point and self-locks, the rotary drive source (4) is temporarily stopped and no drive force is applied to the guide pin (7). Even
The gate (2) cannot be pushed open from its inner surface. Therefore, the gate (2) does not open arbitrarily due to the weight of the object to be weighed, and the toggle function can be provided without adding any special mechanism. Of course, even after the gate is closed, the same lock function can be provided even if the rotary drive source (4) is driven in the same direction as immediately before the full closing to give the rotary torque.

【0024】回転駆動源(4)の起動及び停止は、その
出力軸の回転数や回転角をエンコーダ等のセンサで読み
取ることにより制御することができる。
Starting and stopping of the rotary drive source (4) can be controlled by reading the rotation speed and rotation angle of the output shaft with a sensor such as an encoder.

【0025】なお、ゲート(2)が完全に閉じる直前に
その閉じ速度を減じるよう回転駆動源(4)を制御すれ
ば、ゲート(2)がホッパ本体(15)と衝突することに
よって生じる騒音を緩和することができる。
If the rotary drive source (4) is controlled so as to reduce the closing speed of the gate (2) immediately before the gate (2) is completely closed, the noise generated by the collision of the gate (2) with the hopper body (15) is reduced. Can be relaxed.

【0026】以上の説明では、案内ピン(7)を時計回
りに公転させているが、反時計回りに公転させても全く
同様の機能が奏される。また、案内ピン(7)が最下降
位置から最上昇位置に至るまでの行程と最上昇位置から
最下降位置に戻るまでの行程とで互いに逆方向に公転さ
せてもよい。
In the above description, the guide pin (7) is revolved clockwise, but even if it is revolved counterclockwise, the same function is achieved. Further, the guide pin (7) may be revolved in the directions opposite to each other during the process from the lowest position to the highest position and the process from the highest position to the lowest position.

【0027】このように、本発明の構成であれば、リン
ク機構及びバネを用いることなくゲート(2)を開閉さ
せることができ、しかもトグル機能も特に専用の機構を
追加することなく簡単に付与できる。従って、取り外し
たホッパにはリンク機構やバネ等が付属せず、リンク機
構等に邪魔されることなく、能率よくホッパ(1)を洗
浄することができる。また、ホッパ(1)の軽量化も達
成される。
As described above, according to the structure of the present invention, the gate (2) can be opened and closed without using the link mechanism and the spring, and the toggle function can be easily provided without adding a special mechanism. it can. Therefore, the removed hopper is not provided with a link mechanism or a spring, and the hopper (1) can be efficiently washed without being hindered by the link mechanism or the like. Further, the weight saving of the hopper (1) is also achieved.

【0028】また、洗浄時において、ホッパ(1)を取
り外す際には、図4に示すようにホッパ(1)を上方に
引張っり、案内ピン(7)を案内部(12)(13)の間か
ら抜き取ると共に、上方の係合部(26)を被係合部(2
5)から脱出させればよい。従って、極めて簡単な作業
でホッパを分離することができる。この時、切欠き穴状
の被係合部(25)が案内ピン(7)の軸方向と平行に形
成されているので、案内ピン(7)の抜き取りと同時に
係合部(26)の抜き取りがなされ、上記分離作業も簡単
に行なうことができる。取り外し後のゲート(2)は、
図4に示すように、外力の負荷されないフリー状態であ
り、自由に動かすことができるので、従来装置では洗浄
しにくかったゲート(2)の内面(ホッパの内部に露出
した面)も簡単且つ確実に洗浄することができる。
When the hopper (1) is removed during cleaning, the hopper (1) is pulled upward as shown in FIG. 4 and the guide pin (7) is attached to the guide portions (12) and (13). The upper engaging part (26) is pulled out from the space, and the engaged part (2)
You can escape from 5). Therefore, the hopper can be separated by a very simple operation. At this time, since the notched hole-shaped engaged portion (25) is formed parallel to the axial direction of the guide pin (7), the guide pin (7) is pulled out and the engaging portion (26) is pulled out at the same time. Therefore, the above separating work can be easily performed. The gate (2) after removal is
As shown in Fig. 4, it is in a free state where no external force is applied and it can be moved freely, so the inner surface of the gate (2), which was difficult to wash in the conventional device (the surface exposed inside the hopper), is also simple and reliable. Can be washed.

【0029】図2に案内溝(11)の他の構成例を示す。
図示のように、断面略コ字型に屈曲形成した板材に長穴
を形成することによっても案内溝(11)を形成すること
ができる。
FIG. 2 shows another example of the structure of the guide groove (11).
As shown in the drawing, the guide groove (11) can also be formed by forming an elongated hole in a plate material that is bent and formed in a substantially U-shaped cross section.

【0030】以上の説明では、案内ピン(7)を駆動側
に配置し、案内溝(11)を被駆動側であるゲート(2)
に設けた場合を例示したが、これとは逆に案内ピン
(7)を被駆動側であるゲート(2)に設け、案内溝
(11)を駆動側に設けてもよい。図7は、その一例であ
り、ゲート(2)背面にゲート軸(9)方向と平行に案
内ピン(7)を配置すると共に、回転駆動源(図示省
略)によって揺動駆動される揺動部材(30)の揺動端部
に案内溝(11)に設けたものである。揺動部材(30)
は、回転駆動源の駆動軸の回転運動をカム機構(31)で
揺動運動に変換し、これを2つのリンク材(32)(33)
で伝達することにより、枢軸(34)を中心として揺動駆
動される。揺動部材(30)が揺動すると、案内溝(11)
に係合させた案内ピン(7)が揺動部材(30)から押圧
力を受け、ゲート(2)が実線位置と二点鎖線位置との
間で開閉運動を行なう。
In the above description, the guide pin (7) is arranged on the driving side and the guide groove (11) is on the driven side of the gate (2).
However, the guide pin (7) may be provided in the gate (2) which is the driven side and the guide groove (11) may be provided in the driving side. FIG. 7 is an example thereof, in which a guide pin (7) is arranged on the back surface of the gate (2) in parallel with the gate axis (9) direction, and is oscillated by a rotary drive source (not shown). The guide groove (11) is provided at the swinging end of the (30). Swing member (30)
Uses a cam mechanism (31) to convert the rotary motion of the drive shaft of the rotary drive source into a swing motion, which is converted into two link members (32) (33).
Is transmitted to drive the rocking motion around the pivot (34). When the rocking member (30) rocks, the guide groove (11)
The guide pin (7) engaged with is subjected to a pressing force from the swing member (30), and the gate (2) makes an opening / closing motion between the solid line position and the two-dot chain line position.

【0031】なお、図1乃至図4及び図7では、1つの
ゲート(2)を有する片開き式のホッパを図示している
が、図6に示すような2つのゲートを有する両開き式の
ホッパにも同様の構成が適用可能である。この場合に
は、一方のゲートに図1乃至図4に示す開閉機構を適用
し、他方のゲートを図6に示す連結リンク(60)を介し
て前記一方のゲートに連結すればよい。この他、2つの
ゲートのそれぞれに独立して上述の開閉機構を設置して
もよい。また、上述のゲート開閉機構は、図5に示す計
量装置のプールホッパ(45)及び計量ホッパ(46)の双
方に適用可能である。
Although FIGS. 1 to 4 and 7 show a single-opening type hopper having one gate (2), a double-opening type hopper having two gates as shown in FIG. The same configuration can also be applied to. In this case, the opening / closing mechanism shown in FIGS. 1 to 4 may be applied to one gate, and the other gate may be connected to the one gate through the connecting link (60) shown in FIG. In addition, the above-mentioned opening / closing mechanism may be independently installed in each of the two gates. Further, the gate opening / closing mechanism described above can be applied to both the pool hopper (45) and the weighing hopper (46) of the weighing device shown in FIG.

【0032】[0032]

【発明の効果】このように本発明によれば、リンク機構
及びバネを用いることなくゲートを開閉させることがで
き、トグル機能も特に専用の機構を追加することなく簡
単に付与できる。従って、洗浄時においても取り外した
ホッパにリンク機構やバネ等が付属せず、リンク機構等
に邪魔されることなく、能率よくホッパを洗浄すること
ができる。しかも取り外したホッパは、ゲートが外力の
負荷されないフリー状態であり、自由に動かすことがで
きるので、従来装置では洗浄しにくかったゲートの内面
も簡単且つ確実に洗浄できるようになる。また、ホッパ
の軽量化も達成され、さらに複雑なリンクやバネがない
ことからホッパ外観がすっきりし、塵埃等が付着しにく
くなって洗浄頻度が低減する。
As described above, according to the present invention, the gate can be opened and closed without using the link mechanism and the spring, and the toggle function can be easily given without adding a special mechanism. Therefore, even during cleaning, the removed hopper is not provided with a link mechanism, a spring, or the like, and the hopper can be efficiently cleaned without being disturbed by the link mechanism and the like. Moreover, since the gate of the removed hopper is in a free state in which no external force is applied and can be moved freely, the inner surface of the gate, which was difficult to clean in the conventional device, can be easily and surely cleaned. Further, the weight of the hopper is also reduced, and since there are no complicated links or springs, the appearance of the hopper is neat, the dust and the like are less likely to adhere, and the cleaning frequency is reduced.

【0033】また、モータ等の回転駆動源で駆動してゲ
ートを閉じるため、閉じた瞬間にゲートがホッパ本体と
衝突して生じる衝撃音を緩和することができる。すなわ
ち、従来品では、ゲートの閉じ力をバネの弾性力で得て
いるため、ゲートの閉じ速度を制御することができず、
慣性によりゲートが激しくホッパ本体に衝突して耳障り
な騒音を生じていたが、本発明では、回転駆動源でゲー
トを閉じているため、閉じる直前に閉じ速度が減少する
ように回転駆動源を電気的に制御することができ、容易
に騒音レベルの低下が図れる。
Further, since the gate is closed by being driven by a rotary drive source such as a motor, it is possible to mitigate the impact noise generated when the gate collides with the hopper body at the moment of closing. That is, in the conventional product, since the closing force of the gate is obtained by the elastic force of the spring, the closing speed of the gate cannot be controlled,
Although the gate violently collides with the hopper body due to inertia and causes annoying noise, in the present invention, since the gate is closed by the rotary drive source, the rotary drive source is electrically driven so that the closing speed is reduced immediately before the gate is closed. The noise level can be controlled easily and the noise level can be easily reduced.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明にかかる計量装置に装備されたゲート開
閉機構の斜視図である。
FIG. 1 is a perspective view of a gate opening / closing mechanism equipped in a weighing device according to the present invention.

【図2】案内溝の他の実施形態を示す斜視図である。FIG. 2 is a perspective view showing another embodiment of the guide groove.

【図3】図1に示すゲート開閉機構の側面図である。FIG. 3 is a side view of the gate opening / closing mechanism shown in FIG.

【図4】図1に示すゲート開閉機構の側面図である。FIG. 4 is a side view of the gate opening / closing mechanism shown in FIG.

【図5】一般的な計量装置の縦断面図である。FIG. 5 is a vertical cross-sectional view of a general weighing device.

【図6】従来のゲート開閉機構の側面図である。FIG. 6 is a side view of a conventional gate opening / closing mechanism.

【図7】変換機構の他の実施形態を示す側面図である。FIG. 7 is a side view showing another embodiment of the conversion mechanism.

【符号の説明】[Explanation of symbols]

1 ホッパ 2 ゲート 3 変換機構 4 回転駆動源 7 案内ピン 9 開閉中心軸(ゲート軸) 11 案内溝 15 ホッパ本体 1 Hopper 2 Gate 3 Conversion mechanism 4 Rotational drive source 7 Guide pin 9 Open / close center axis (gate axis) 11 Guide groove 15 Hopper body

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ホッパ本体の下部開口を開閉するゲート
を有するホッパが装備された計量装置において、 案内ピンと、この案内ピンと相対移動可能に係合する案
内溝のうちの何れか一方をゲートに設け、他方を、前記
一方がゲートの開閉中心軸に対して直交する方向に揺動
するように回転駆動源の駆動軸に連結して、当該駆動軸
の駆動でゲートを開閉させるようにしたことを特徴とす
る計量装置。
1. A weighing device equipped with a hopper having a gate that opens and closes a lower opening of a hopper main body, wherein a gate is provided with one of a guide pin and a guide groove that engages with the guide pin in a relatively movable manner. , The other is connected to the drive shaft of the rotary drive source so that the one swings in a direction orthogonal to the opening / closing center axis of the gate, and the gate is opened / closed by driving the drive shaft. Characteristic measuring device.
【請求項2】 案内ピンを回転駆動源で駆動すると共
に、案内溝を、当該溝内での案内ピンの相対移動方向が
ゲートの開閉中心軸と平行になるようにしてゲートに設
けたことを特徴とする請求項1記載の計量装置。
2. The guide pin is driven by a rotary drive source, and the guide groove is provided in the gate such that the relative movement direction of the guide pin in the groove is parallel to the opening / closing center axis of the gate. The weighing device according to claim 1, wherein the weighing device is a weighing device.
【請求項3】 案内溝を回転駆動源で駆動すると共に、
案内ピンを、その軸方向がゲートの開閉中心軸と平行に
なるようにしてゲートに設けたことを特徴とする請求項
1記載の計量装置。
3. The guide groove is driven by a rotary drive source, and
2. The weighing device according to claim 1, wherein the guide pin is provided on the gate such that its axial direction is parallel to the opening / closing center axis of the gate.
JP07264196A 1996-03-27 1996-03-27 Weighing device Expired - Fee Related JP3629089B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07264196A JP3629089B2 (en) 1996-03-27 1996-03-27 Weighing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07264196A JP3629089B2 (en) 1996-03-27 1996-03-27 Weighing device

Publications (2)

Publication Number Publication Date
JPH09264776A true JPH09264776A (en) 1997-10-07
JP3629089B2 JP3629089B2 (en) 2005-03-16

Family

ID=13495221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07264196A Expired - Fee Related JP3629089B2 (en) 1996-03-27 1996-03-27 Weighing device

Country Status (1)

Country Link
JP (1) JP3629089B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003014530A (en) * 2001-07-02 2003-01-15 Masatoshi Imanaka Hopper device and measuring device
JP2010038687A (en) * 2008-08-04 2010-02-18 Yamato Scale Co Ltd Combination balance and method for driving hopper gate in the combination balance
JP2011068483A (en) * 2009-09-28 2011-04-07 Kawata Mfg Co Ltd Loader hopper
JP2014182030A (en) * 2013-03-19 2014-09-29 Ishida Co Ltd Hopper device and combination weighing apparatus mounting the same
JP2016020248A (en) * 2014-07-14 2016-02-04 大和製衡株式会社 Hopper and combination balance equipped with hopper
JP2018048851A (en) * 2016-09-20 2018-03-29 株式会社イシダ Hopper, and combination weighing device
WO2020184632A1 (en) * 2019-03-13 2020-09-17 株式会社イシダ Combination weighing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5289205B2 (en) * 2009-06-24 2013-09-11 大和製衡株式会社 Weighing hopper gate opening and closing mechanism

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003014530A (en) * 2001-07-02 2003-01-15 Masatoshi Imanaka Hopper device and measuring device
JP4643063B2 (en) * 2001-07-02 2011-03-02 正俊 今中 Hopper device and weighing device
JP2010038687A (en) * 2008-08-04 2010-02-18 Yamato Scale Co Ltd Combination balance and method for driving hopper gate in the combination balance
JP2011068483A (en) * 2009-09-28 2011-04-07 Kawata Mfg Co Ltd Loader hopper
JP2014182030A (en) * 2013-03-19 2014-09-29 Ishida Co Ltd Hopper device and combination weighing apparatus mounting the same
JP2016020248A (en) * 2014-07-14 2016-02-04 大和製衡株式会社 Hopper and combination balance equipped with hopper
JP2018048851A (en) * 2016-09-20 2018-03-29 株式会社イシダ Hopper, and combination weighing device
WO2018056182A1 (en) * 2016-09-20 2018-03-29 株式会社イシダ Hopper and combination weighing device
US10782180B2 (en) 2016-09-20 2020-09-22 Ishida Co., Ltd. Hopper and combination weighing device
WO2020184632A1 (en) * 2019-03-13 2020-09-17 株式会社イシダ Combination weighing device
JP6777357B1 (en) * 2019-03-13 2020-10-28 株式会社イシダ Combination weighing device
CN112204361A (en) * 2019-03-13 2021-01-08 株式会社石田 Combined metering device
US11333546B2 (en) 2019-03-13 2022-05-17 Ishida Co., Ltd. Combination weighing apparatus with improved hopper attachment workability
CN112204361B (en) * 2019-03-13 2023-07-14 株式会社石田 Combined metering device

Also Published As

Publication number Publication date
JP3629089B2 (en) 2005-03-16

Similar Documents

Publication Publication Date Title
US4476601A (en) Washing apparatus
US4561510A (en) Dispersing supply apparatus in automatic weighing system
JPH07503067A (en) Automatic particle size analyzer using stacked sieves
JPH09264776A (en) Weighing apparatus
EP0852328B1 (en) Measuring instrument improving fittability and removability of hopper
GB2128173A (en) Gate driving device
CN215923228U (en) Automatic unloader of mechanism sand proportioning bins
KR970010001B1 (en) Apparatus for weighing softened solid
JP4149114B2 (en) Combination weighing device
JPH09159517A (en) Weighting device
US6386391B2 (en) Metering machine for pasta
US2016204A (en) Potato sorting and weighing machine
US4062108A (en) Stick insertion apparatus
JPH0380550B2 (en)
JP4592218B2 (en) Weighing hopper
JPH0514853U (en) Work discharge mechanism
CN220350120U (en) Packing plant is used in maize preforming production
JP2001272267A (en) Combined metering apparatus
CN213293466U (en) Flexible high-speed rotating feeding mechanism
CN218968155U (en) Clamping assembly and automatic clamping equipment
JP5634719B2 (en) Hoppers and weighing equipment
SU1175659A2 (en) Rotary automatic feeding machine
JP2525916Y2 (en) Weighing device
JP2003095201A (en) High-speed cutting out apparatus
JP4482746B2 (en) Bean degranulator

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20041125

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20041206

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20041210

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20071217

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101217

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20101217

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111217

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111217

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121217

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees