JP5917818B2 - Sorting device - Google Patents

Sorting device Download PDF

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JP5917818B2
JP5917818B2 JP2011068096A JP2011068096A JP5917818B2 JP 5917818 B2 JP5917818 B2 JP 5917818B2 JP 2011068096 A JP2011068096 A JP 2011068096A JP 2011068096 A JP2011068096 A JP 2011068096A JP 5917818 B2 JP5917818 B2 JP 5917818B2
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cleaning
cover
sorting
workpiece
movable part
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JP2012201465A (en
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伊藤　達哉
達哉 伊藤
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Anritsu Infivis Co Ltd
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Description

本発明は、搬送手段により搬送されるワークを選別手段により押し出して選別する選別装置に係り、安全上、カバーに覆われた搬送手段の搬送部や選別手段の選別ゲート駆動部といった可動部位の清掃が安全且つ容易となる選別装置に関する。   The present invention relates to a sorting apparatus that pushes out and sorts a workpiece conveyed by a conveying unit by a sorting unit, and for safety, cleaning of movable parts such as a conveying unit of the conveying unit covered by a cover and a sorting gate driving unit of the sorting unit. Relates to a sorting device that is safe and easy.

食品などの生産ラインでは、ワークを検査装置で検査し、例えば、良品と判定されたワークは後段の装置へと搬送し、不良品と判定されたワークは生産ラインから一旦排除するようにしている。従来、ワークを良品と不良品などに振り分ける様々な選別装置があるが、その中に、搬送されるワークを選別ゲートで押し出して選別するプッシュ式の選別装置がある。   In a production line for food, etc., a workpiece is inspected by an inspection device. For example, a workpiece determined to be non-defective is transported to a subsequent device, and a workpiece determined to be defective is temporarily removed from the production line. . Conventionally, there are various sorting devices that sort workpieces into non-defective products and defective products. Among them, there is a push type sorting device that pushes and sorts a workpiece to be conveyed by a sorting gate.

例えば下記特許文献１には、図６に示すように、ワークＷを搬送するコンベア１１０の一方の側部側に配置され、コンベア１１０上に搬入されたワークＷをこのコンベア１１０の他方の側部側へ押し出す押出手段１００のことが開示されている。この押出手段１００は、エアシリンダ１０１と、エアシリンダ１０１のシリンダ軸１０２の先端に取り付けられた平板状の押し板１０３とを備えている。この押出手段１００は、押し板１０３をコンベア１１０の一方の側部側から他方の側部側へとワークＷの搬送路を横切るように略水平に移動させて、コンベア１１０上に搬入され、搬送方向Ｙに搬送されるワークＷを押し出して搬送方向Ｙと異なる方向、ここでは、搬送方向Ｙと略直交する方向Ｙ’に配置された他の搬送体１２０に排出する。   For example, in Patent Document 1 below, as shown in FIG. 6, the work W that is disposed on one side of the conveyor 110 that conveys the work W and is loaded onto the conveyor 110 is placed on the other side of the conveyor 110. The extrusion means 100 for extruding to the side is disclosed. The pushing means 100 includes an air cylinder 101 and a flat push plate 103 attached to the tip of the cylinder shaft 102 of the air cylinder 101. The pushing means 100 moves the push plate 103 from one side of the conveyor 110 to the other side of the conveyor 110 substantially horizontally so as to cross the conveyance path of the workpiece W, and is carried onto the conveyor 110 for conveyance. The workpiece W transported in the direction Y is extruded and discharged to another transport body 120 arranged in a direction different from the transport direction Y, here, a direction Y ′ substantially orthogonal to the transport direction Y.

特開平９−２８６５１７号公報JP-A-9-286517

ところで、図６に示すような押出手段１００には、押し板１０３を駆動するための部位、すなわち、エアシリンダ１０１とシリンダ軸１０２のような可動部位がある。また、コンベア１１０には、循環駆動されるベルトやローラなどの可動部位がある。これらの可動部位は汚れやすいため、可動部位の清掃は小まめに行いたいという要望があった。   Incidentally, the pushing means 100 as shown in FIG. 6 has a portion for driving the push plate 103, that is, a movable portion such as the air cylinder 101 and the cylinder shaft 102. Further, the conveyor 110 has movable parts such as a belt and a roller that are driven to circulate. Since these movable parts are easily contaminated, there has been a demand for cleaning the movable parts on a small basis.

しかしながら、可動部位は、各部が動作する危険部位でもあるため、清掃時には安全に十分注意が必要であった。また通常は、図６に二点鎖線で示したように、例えば押出手段１００であれば、可動部位（エアシリンダ１０１）の周囲はカバー１０４に覆われているため、清掃するためにはこのカバー１０４を取り外すなどの作業が必要となり、実際には清掃がやりにくいという問題があった。   However, since the movable part is also a dangerous part in which each part operates, careful attention must be paid to safety during cleaning. In general, as shown by a two-dot chain line in FIG. 6, for example, in the case of the extrusion means 100, the periphery of the movable part (air cylinder 101) is covered with the cover 104. There is a problem that it is difficult to perform cleaning, such as removing 104.

そこで本発明は、このような状況に鑑みてなされたもので、搬送手段や選別手段のそれぞれの可動部位を清掃するときに、安全性及び清掃容易性を共に向上させた選別装置を提供することを目的としている。   Accordingly, the present invention has been made in view of such a situation, and provides a sorting device that improves both safety and ease of cleaning when cleaning each movable part of the transport means and the sorting means. It is an object.

次に、上記の課題を解決するための手段を、実施の形態に対応する図面を参照して説明する。
本発明に係る請求項１記載の選別装置は、循環駆動される搬送部４でワークＷを所定の搬送方向Ｙに搬送する搬送手段２，３２と、
前記搬送手段に搬送される前記ワークを押すように選別ゲート１７を駆動する駆動部１８を有し、前記選別ゲートで前記ワークを前記搬送手段から押し出して選別する選別手段１０とを備えた選別装置１において、
前記搬送手段または前記選別手段の露出する可動部位４，１８，３４にはカバー８，１９，３３が設けられており、該カバーに、その内部の前記可動部位を視認するための視認部２１となる透明な洗浄用窓２３と、該可動部位を洗浄するための洗浄部２２となる洗浄穴２４と、前記洗浄穴の周縁部に設けられたベローズ部２５を介して洗浄用ホース２７を前記カバーの内部に連通させる短管状のホース取付部２６と、を設けたことを特徴としている。 Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The sorting apparatus according to the first aspect of the present invention includes a transport unit 2, 32 that transports the workpiece W in a predetermined transport direction Y by the transport unit 4 that is circulated and driven.
A sorting apparatus including a driving unit 18 that drives a sorting gate 17 so as to push the workpiece conveyed to the conveying unit, and a sorting unit 10 that pushes and sorts the workpiece from the conveying unit by the sorting gate. In 1,
Wherein the movable portion 4,18,34 exposing the conveying means or said selection means and cover 8,19,33 is provided on the cover, the visible part 21 for viewing the movable portion of the interior The cleaning hose 27 is covered through a transparent cleaning window 23 , a cleaning hole 24 serving as a cleaning part 22 for cleaning the movable part, and a bellows part 25 provided at a peripheral part of the cleaning hole. And a short tubular hose attachment portion 26 communicating with the inside of the inside .

本発明に係る請求項１記載の選別装置によれば、安全性を確保するために可動部位に設けられているカバーに視認部と洗浄部とを設けたことにより、清掃作業者は、視認部からカバー内部の可動部位を見ながら洗浄部からこの可動部位を清掃することができる。したがって、清掃作業者は、カバーの外から可動部位を清掃することができるようになり、可動部位に手などを近接させなくてもこの部位の清掃が可能となる。これにより、安全性が向上する。また、清掃時にカバーを取り外すなどの煩雑な作業を行わなくてもよいため、可動部位の清掃容易性が向上する。さらに、視認部に透明な洗浄用窓を採用したことでカバーの内と外は確実に隔離され、可動部位に誤って手などを入れることがなくなるため、安全性が更に向上する。また、洗浄穴の周縁部に設けられたベローズ部を介して洗浄用ホースをカバー内部に連通させるホース取付部を備えているため、洗浄用ホースから注入される洗浄水の向きを自在に変更可能となり清掃容易性が向上する。 According to the sorting apparatus according to claim 1 of the present invention, the cleaning operator is provided with the visual recognition unit and the cleaning unit on the cover provided in the movable part in order to ensure safety. The movable part can be cleaned from the cleaning part while viewing the movable part inside the cover. Therefore, the cleaning operator can clean the movable part from the outside of the cover, and the part can be cleaned without bringing a hand or the like close to the movable part. Thereby, safety is improved. Moreover, since it is not necessary to perform complicated work such as removing the cover during cleaning, the ease of cleaning the movable part is improved. In addition, by adopting a transparent cleaning window in the visual recognition part, the inside and outside of the cover are reliably isolated, and there is no possibility of accidentally putting a hand or the like into the movable part, further improving safety. In addition, it has a hose attachment that allows the cleaning hose to communicate with the inside of the cover via the bellows provided at the periphery of the cleaning hole, so the direction of the cleaning water injected from the cleaning hose can be changed freely It becomes easier to clean.

本発明の実施の形態（選別装置）の全体構成を示す斜視図である。It is a perspective view which shows the whole structure of embodiment (sorting apparatus) of this invention. （ａ）同実施の形態における搬送手段に設けられた視認部及び洗浄部を示す側面図である。（ｂ）同正面図である。(A) It is a side view which shows the visual recognition part and the washing | cleaning part which were provided in the conveying means in the embodiment. (B) It is the same front view. 同実施の形態における選別手段に設けられた視認部及び洗浄部を示す平面図である。It is a top view which shows the visual recognition part and the washing | cleaning part which were provided in the selection means in the embodiment. （ａ），（ｂ）同実施の形態における視認部及び洗浄部の構成及び清掃時の動作を示す説明図（正面図）である。(A), (b) It is explanatory drawing (front view) which shows the structure of the visual recognition part and washing | cleaning part in the same embodiment, and the operation | movement at the time of cleaning. 同実施の形態における搬送手段に設けられた視認部及び洗浄部の他の例を示す側面図である。It is a side view which shows the other example of the visual recognition part provided in the conveyance means in the same embodiment, and a washing | cleaning part. 従来の選別装置における押出手段を示す平面図である。It is a top view which shows the extrusion means in the conventional sorting apparatus.

以下、本発明の実施の形態を図面を参照して具体的に説明する。
この実施の形態（選別装置１）は、図１に示すように、前段コンベアから送られてきて、搬送手段としてのベルトコンベア２に搬送される食品などのワークＷを、選別手段１０の選別ゲート１７で搬送方向Ｙと異なる選別方向Ｙ’（この実施の形態では、搬送方向Ｙと直交する方向）に押して移動させ、このワークＷの搬送部となる搬送ベルト４の搬送面から外に押し出す装置である。 Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIG. 1, this embodiment (sorting device 1) is configured to sort a work W such as food, which is sent from a preceding conveyor and conveyed to a belt conveyor 2 as a conveying means, into a sorting gate of the sorting means 10. 17 is a device that pushes and moves in a sorting direction Y ′ (in this embodiment, a direction orthogonal to the transport direction Y) different from the transport direction Y, and pushes it out from the transport surface of the transport belt 4 serving as a transport unit for the workpiece W. It is.

図１に示すように、搬送手段としてのベルトコンベア２は、一対のローラ３，３と、これらローラ３，３の間に掛け回された無端状の搬送ベルト４とを備えている。一対のローラ３，３のいずれか一方（図１に示す例では、搬送方向Ｙの下流側に配置されたローラ）は駆動モータ５に接続された主動ローラとなり、他方は従動ローラとなる。ベルトコンベア２は、脚部６で支持された基台７上に取り付けられている。   As shown in FIG. 1, the belt conveyor 2 as a conveying means includes a pair of rollers 3 and 3, and an endless conveying belt 4 wound around these rollers 3 and 3. One of the pair of rollers 3 and 3 (in the example shown in FIG. 1, a roller disposed on the downstream side in the transport direction Y) is a main driving roller connected to the drive motor 5, and the other is a driven roller. The belt conveyor 2 is mounted on a base 7 supported by leg portions 6.

図２に示すように、ベルトコンベア２の循環駆動される搬送ベルト４下側ではフリーの状態であり、露出させると手を挟み易い危険な可動部位であるため、安全上、ベルトコンベア２の両方の側部には、搬送ベルト４の下側やローラ３などを覆うように板状のカバー８，８が設けられている。したがって、搬送ベルト４はその上面、すなわち、搬送面だけを外部に露出させ、露出させると危険な可動部位は、外部から手などが入り込めないようにカバー８で覆われている。また、カバー８には、後述する清掃作業部２０が設けられている。   As shown in FIG. 2, the belt conveyor 2 is circulated and driven under the conveyor belt 4, which is in a free state. If exposed, it is a dangerous movable part that easily catches hands. Plate-like covers 8 and 8 are provided on the side of the cover so as to cover the lower side of the conveyor belt 4 and the roller 3. Therefore, the upper surface of the transport belt 4, that is, only the transport surface, is exposed to the outside, and a movable part that is dangerous when exposed is covered with a cover 8 so that a hand or the like cannot enter from the outside. Further, the cover 8 is provided with a cleaning work unit 20 described later.

また、ベルトコンベア２の一方の側部には、選別手段１０が配置されている。選別手段１０は、脚部１１で支持された基台１２上に取り付けられている。選別手段１０は、いわゆるプッシャー選別機であり、搬送ベルト４の搬送面上のワークＷを選別方向Ｙ’に移動させてこの搬送面の外に押し出すものである。   A sorting means 10 is disposed on one side of the belt conveyor 2. The sorting means 10 is attached on the base 12 supported by the legs 11. The sorting means 10 is a so-called pusher sorter, and moves the workpiece W on the transport surface of the transport belt 4 in the sorting direction Y ′ and pushes it out of the transport surface.

図１，３に示すように、基台１２上には、搬送方向Ｙと直交する向きでシリンダ１３が固定されている。シリンダ１３は伸縮自在のロッド１４を備えており、ロッド１４の先端は待機時の位置（引き込み位置）において、搬送ベルト４の一方の側部よりも僅かに外側に位置している。このようなシリンダ１３としては、油圧又は空圧の駆動シリンダでもよいし、電気で作動するソレノイドでもよく、要するにワークＷを押すために必要な力を有してロッド１４を自在に往復動作させるものであればよい。   As shown in FIGS. 1 and 3, a cylinder 13 is fixed on the base 12 in a direction orthogonal to the transport direction Y. The cylinder 13 includes a telescopic rod 14, and the tip of the rod 14 is positioned slightly outside the one side of the conveyor belt 4 at the standby position (retracted position). Such a cylinder 13 may be a hydraulic or pneumatic drive cylinder or an electrically operated solenoid. In short, the cylinder 14 is capable of freely reciprocating the rod 14 with a force necessary to push the workpiece W. If it is.

基台１２の上面において、平面視でシリンダ１３を中心とする対称な二つの位置であり、シリンダ１３の搬送ベルト４に近い各位置には、案内部材１５，１５がそれぞれ固定されている。案内部材１５は、丸棒状のガイド部材１６をその軸方向に往復自在に直動するように案内するものであり、その案内方向はシリンダ１３のロッド１４が往復動作する方向と同一である。   On the upper surface of the base 12, there are two symmetrical positions around the cylinder 13 in plan view, and guide members 15 and 15 are fixed at positions near the conveying belt 4 of the cylinder 13, respectively. The guide member 15 guides the round bar-shaped guide member 16 so as to linearly reciprocate in the axial direction, and the guide direction is the same as the direction in which the rod 14 of the cylinder 13 reciprocates.

シリンダ１３はロッド１４を直動させ、案内部材１５はガイド部材１６が直動するようにこのガイド部材１６を導く。これらのシリンダ１３、ロッド１４、案内部材１５、ガイド部材１６は選別ゲート１７を駆動する選別ゲート駆動部１８を構成し、この中のロッド１４とガイド部材１６が、露出していると手などを挟み易い危険な可動部位となる。選別ゲート１７は、シリンダ１３のロッド１４の先端に固定されている。選別デート１７は、シリンダ１３の軸方向と直交する方向（搬送方向Ｙ）に長い略直方体状の部材であり、その中央部の後面側においてロッド１４に連結されている。さらに、選別ゲート１７の前面は、待機時の位置（引き込み位置）において、搬送ベルト４の一方の側端縁に略一致した位置に配置されている。そして、この位置で搬送されるワークＷを待ち、ベルトコンベア２にワークＷが搬送されてきたら、所定のタイミングで駆動されたシリンダ１３によって搬送ベルト４の搬送面上に移動し、搬送ベルト４の他方の側部の位置（押し出し位置）まで移動してワークＷを搬送ベルト４から外に押し出す。なお、このとき、選別ゲート１７の下端面と搬送ベルト４の搬送面との間には、ワークＷや作業者の手指などを巻き込まない程度に搬送ベルト４との過剰な摩擦や干渉を避けることができるほどの僅かな隙間が設けられている。そして、押し出し動作後、シリンダ１３は逆方向に移動し、選別ゲート１７はもとの待機時の位置に戻る。   The cylinder 13 moves the rod 14 linearly, and the guide member 15 guides the guide member 16 so that the guide member 16 moves linearly. These cylinder 13, rod 14, guide member 15, and guide member 16 constitute a sorting gate drive unit 18 that drives the sorting gate 17. If the rod 14 and the guide member 16 are exposed, a hand or the like is used. It becomes a dangerous movable part that is easily pinched. The sorting gate 17 is fixed to the tip of the rod 14 of the cylinder 13. The sorting date 17 is a substantially rectangular parallelepiped member that is long in the direction orthogonal to the axial direction of the cylinder 13 (conveying direction Y), and is connected to the rod 14 on the rear surface side of the central portion thereof. Further, the front surface of the sorting gate 17 is disposed at a position substantially coincident with one side edge of the conveyor belt 4 at a standby position (retracted position). Then, after waiting for the workpiece W conveyed at this position, when the workpiece W is conveyed to the belt conveyor 2, it is moved onto the conveying surface of the conveying belt 4 by the cylinder 13 driven at a predetermined timing. The workpiece W is moved to the position of the other side (pushing position) and the work W is pushed out of the conveyor belt 4. At this time, excessive friction and interference with the transport belt 4 should be avoided between the lower end surface of the sorting gate 17 and the transport surface of the transport belt 4 to the extent that the work W or the fingers of the operator are not involved. A slight gap is provided so that After the pushing operation, the cylinder 13 moves in the reverse direction, and the sorting gate 17 returns to the original standby position.

基台１２の上面には、選別ゲート駆動部１８のうちの可動部位を覆うように略矩形箱状のカバー１９が取り付けられている。カバー１９は、選別ゲート１７が配置される前面と基台１２上に配置される下面が開放されている。カバー１９の前面は選別ゲート１７の後面で覆われ、下面は基台１２の上面で被覆されている。したがって、可動部位は外部から見えないようにカバー１９に覆われることになる。このカバー１９の両側面及び後面には、後述する清掃作業部３０が設けられている。   A substantially rectangular box-shaped cover 19 is attached to the upper surface of the base 12 so as to cover the movable part of the sorting gate driving unit 18. The cover 19 has an open front surface on which the sorting gate 17 is disposed and a lower surface disposed on the base 12. The front surface of the cover 19 is covered with the rear surface of the sorting gate 17, and the lower surface is covered with the upper surface of the base 12. Therefore, the movable part is covered with the cover 19 so as not to be visible from the outside. On both side surfaces and the rear surface of the cover 19, a cleaning operation unit 30 described later is provided.

ここから、図２〜４を参照して本発明の要旨である上述した各カバー８，１９に設けられた清掃作業部２０（２０ａ，２０ｂ）の構成及び動作について説明する。
図２に示すように、搬送手段としてのベルトコンベア２のカバー８には、前述した清掃作業部２０（２０ａ）が設けられている。清掃作業部２０ａは、清掃作業者がカバー８の内部に配置された可動部位となる搬送部（搬送ベルト４やローラ３）を視認するための視認部２１（２１ａ）と、清掃作業者が搬送ベルト４を清掃するための洗浄部２２（２２ａ）とを備えている。視認部２１ａは、アクリルなどからなる透明な矩形の洗浄用窓２３（２３ａ）からなる。また、洗浄部２２ａは、洗浄用窓２３ａにおいて、搬送ベルト４やローラ３に対し、洗浄水を注入して到達できるような位置に設けられた二つの小径の洗浄穴２４（２４ａ）からなる。 From here, with reference to FIGS. 2-4, the structure and operation | movement of the cleaning operation | work part 20 (20a, 20b) provided in each cover 8 and 19 which are the summary of this invention are demonstrated.
As shown in FIG. 2, the cleaning unit 20 (20 a) described above is provided on the cover 8 of the belt conveyor 2 as a conveying unit. The cleaning operation unit 20a includes a visual recognition unit 21 (21a) that allows the cleaning operator to visually recognize a conveyance unit (conveyance belt 4 and roller 3) that is a movable part disposed inside the cover 8, and the cleaning operator conveys the cleaning unit 20a. A cleaning section 22 (22a) for cleaning the belt 4 is provided. The visual recognition part 21a includes a transparent rectangular cleaning window 23 (23a) made of acrylic or the like. The cleaning unit 22a is composed of two small-diameter cleaning holes 24 (24a) provided in the cleaning window 23a so as to be able to reach the conveying belt 4 and the roller 3 by injecting cleaning water.

図２，４に示すように、カバー８に設けられた洗浄部２２ａとなる小径の洗浄穴２４ａには、その穴２４ａの周縁部にベローズ部２５が設けられている。さらに、ベローズ部２５には、このベローズ部２５を介して洗浄用ホース２７をカバー８の内部に連通させる短管状のホース取付部２６が設けられている。   As shown in FIGS. 2 and 4, a small diameter cleaning hole 24 a serving as a cleaning portion 22 a provided in the cover 8 is provided with a bellows portion 25 at the peripheral portion of the hole 24 a. Further, the bellows portion 25 is provided with a short tubular hose attachment portion 26 that allows the cleaning hose 27 to communicate with the inside of the cover 8 via the bellows portion 25.

図４に示すように、洗浄穴２４ａにホース取付部２６から取り付けられた洗浄用ホース２７は、ベローズ部２５の伸縮により、同図（ａ）に示すように下に向けたり、同図（ｂ）に示すように上に向けたり、角度を自在に可変することができる。   As shown in FIG. 4, the cleaning hose 27 attached to the cleaning hole 24 a from the hose attachment portion 26 may be directed downward as shown in FIG. As shown in (3), it can be turned up and the angle can be changed freely.

図３に示すように、選別手段１０のカバー１９の両側面及び後面には、それぞれ前述した清掃作業部２０（２０ｂ）が設けられている。清掃作業部２０ｂは、清掃作業者がカバー１９の内部に配置された可動部位となる選別ゲート駆動部１８を視認するための視認部２１（２１ｂ）と、清掃作業者が選別ゲート駆動部１８を清掃するための洗浄部２２（２２ｂ）とを備えている。視認部２１ｂは、アクリルなどからなる透明な矩形の洗浄用窓２３（２３ｂ）からなる。また、洗浄部２２ｂは、洗浄用窓２３ｂにおいて、選別ゲート駆動部１８のロッド１４、ガイド部材１６に対し、洗浄水を注入して到達できるような位置に設けられた小径の洗浄穴２４（２４ｂ）からなる。   As shown in FIG. 3, the above-described cleaning operation portions 20 (20 b) are provided on both side surfaces and the rear surface of the cover 19 of the sorting unit 10. The cleaning operation unit 20b includes a visual recognition unit 21 (21b) for allowing the cleaning operator to visually recognize the selection gate driving unit 18 that is a movable part disposed inside the cover 19, and the cleaning operator to select the selection gate driving unit 18. And a cleaning unit 22 (22b) for cleaning. The visual recognition part 21b is composed of a transparent rectangular cleaning window 23 (23b) made of acrylic or the like. Further, the cleaning unit 22b has a small-diameter cleaning hole 24 (24b) provided at a position where the cleaning water can be reached by injecting the cleaning water into the rod 14 and the guide member 16 of the sorting gate driving unit 18 in the cleaning window 23b. ).

図３，４に示すように、カバー１９に設けられた洗浄部２２ｂとなる小径の洗浄穴２４ｂには、その穴２４ｂの周縁部にベローズ部２５が設けられている。さらに、ベローズ部２５には、このベローズ部２５を介して洗浄用ホース２７をカバー１９の内部に連通させる短管状のホース取付部２６が設けられている。   As shown in FIGS. 3 and 4, a small diameter cleaning hole 24 b serving as a cleaning part 22 b provided in the cover 19 is provided with a bellows part 25 at the periphery of the hole 24 b. Further, the bellows portion 25 is provided with a short tubular hose attachment portion 26 that allows the cleaning hose 27 to communicate with the inside of the cover 19 via the bellows portion 25.

図４に示すように、洗浄穴２４ｂにホース取付部２６から取り付けられた洗浄用ホース２７は、ベローズ部２５の伸縮により、同図（ａ）に示すように下に向けたり、同図（ｂ）に示すように上に向けたり、角度を自在に可変することができる。これにより、洗浄用ホース２７から注入される洗浄水の向きを自在に変更可能となる。この結果、清掃の自由度が上がり、清掃容易性が向上する。   As shown in FIG. 4, the cleaning hose 27 attached to the cleaning hole 24 b from the hose attachment portion 26 may be directed downward as shown in FIG. As shown in (3), it can be turned up and the angle can be changed freely. Thereby, the direction of the cleaning water injected from the cleaning hose 27 can be freely changed. As a result, the degree of freedom in cleaning is increased and the ease of cleaning is improved.

上述した実施の形態によれば、安全性を確保するためにベルトコンベア２の搬送ベルト４やローラ３、選別手段１０の選別ゲート駆動部１８のうちのロッド１４とガイド部材１６といった可動部位に設けられているカバー８，１９に視認部２１ａ，２１ｂと洗浄部２２ａ，２２ｂとを設けたことにより、清掃作業者は、視認部２１ａ，２１ｂからカバー８，１９内部の上述した可動部位４，１８を見ながら洗浄部２２ａ，２２ｂからこれらの可動部位４，１８を清掃することができる。したがって、清掃作業者は、カバー８，１９の外から可動部位４，１８を清掃することができるようになり、可動部位４，１８に手などを近接させなくてもこの部位４，１８の清掃が可能となる。これにより、安全性が向上する。また、清掃時にカバー８，１９を取り外すなどの煩雑な作業を行わなくてもよいため、可動部位４，１９の清掃容易性が向上する。   According to the above-described embodiment, in order to ensure safety, the movable belt 4 and the roller 3 of the belt conveyor 2 and the rod 14 and the guide member 16 of the sorting gate driving unit 18 of the sorting means 10 are provided at movable parts. By providing the visible portions 21a and 21b and the cleaning portions 22a and 22b on the covers 8 and 19, the cleaning operator can move the movable portions 4 and 18 inside the covers 8 and 19 from the visible portions 21a and 21b. These movable parts 4 and 18 can be cleaned from the cleaning parts 22a and 22b while viewing the screen. Therefore, the cleaning operator can clean the movable parts 4 and 18 from the outside of the covers 8 and 19, and the parts 4 and 18 can be cleaned without bringing a hand or the like close to the movable parts 4 and 18. Is possible. Thereby, safety is improved. Moreover, since it is not necessary to perform a complicated operation such as removing the covers 8 and 19 during cleaning, the ease of cleaning the movable parts 4 and 19 is improved.

また、簡素な構造でありながらも、ベルトコンベア２の搬送ベルト４やローラ３、選別手段１０の選別ゲート駆動部１８のうちのロッド１４とガイド部材１６における清掃時の安全性と清掃容易性が共に向上する。さらに、洗浄用窓２３ａ，２３ｂがあることでカバー８、１９の内と外は確実に隔離され、上述した可動部位４，１８に誤って手などを入れることがなくなるため、安全性が更に向上する。   Moreover, although it is a simple structure, the safety | security at the time of the cleaning in the conveyance belt 4 and the roller 3 of the belt conveyor 2, and the rod 14 and the guide member 16 of the selection gate drive part 18 of the selection means 10 at the time of cleaning are easy. Both improve. Further, the presence of the cleaning windows 23a and 23b ensures that the inside and outside of the covers 8 and 19 are securely separated, and the above-mentioned movable parts 4 and 18 are not accidentally put in hands, thereby further improving safety. To do.

なお、図５は上述した実施の形態の他の例を示している。この例は、ベルトコンベア３２の搬送ベルトに、ワークＷが重量物のときにこのワークＷの搬送に適した硬質樹脂からなるベルト片が連結ピンで湾曲可能に連結された搬送ベルト（いわゆるプラベルト）３４を用いた場合である。また、図５において、上述した実施の形態と同一又は同等の箇所には同一の符号を付し、その説明は省略する。   FIG. 5 shows another example of the above-described embodiment. In this example, a conveyor belt (so-called plastic belt) in which a belt piece made of a hard resin suitable for conveying the workpiece W is connected to the conveyor belt of the belt conveyor 32 so as to be bent by a coupling pin when the workpiece W is heavy. 34 is used. In FIG. 5, the same or equivalent portions as those in the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

図５に示すように、ベルトコンベア３２のカバー３３には、清掃作業部２０（２０ｃ）が設けられている。清掃作業部２０ｃは、清掃作業者がカバー３３の内部に配置された可動部位となる搬送部としてのプラベルト３４やローラ３を視認するための視認部２１（２１ｃ）と、清掃作業者がプラベルト３４やローラ３を清掃するための洗浄部２２（２２ｃ）とを備えている。この例では、プラベルト３４がその特性から循環するために弛みが必要であるため、広い範囲で可動部位と干渉しないということを利用して、カバー３３に、視認部２１ｃと洗浄部２２ｃを機能的に兼用させた大径の洗浄穴２４（２４ｃ）が可動部位から離れた位置に設けられている。これにより、上述した実施の形態と同様に、清掃作業者は、洗浄穴２４ｃからカバー３３内部の可動部位３４を見ながら洗浄穴２４ｃからこの可動部位３４を清掃可能になるという効果が得られる。この結果、簡素な構造で安全性と清掃容易性が共に向上する。   As shown in FIG. 5, the cleaning unit 20 (20 c) is provided on the cover 33 of the belt conveyor 32. The cleaning operation unit 20 c includes a visual recognition unit 21 (21 c) for visually recognizing the plastic belt 34 and the roller 3 as a conveyance unit that is a movable part disposed inside the cover 33, and the cleaning operator performs the plastic belt 34. And a cleaning section 22 (22c) for cleaning the roller 3. In this example, since the plastic belt 34 circulates due to its characteristics, the slack is necessary, so that the visual recognition portion 21c and the cleaning portion 22c are functionally attached to the cover 33 by utilizing that the movable portion does not interfere with a wide range. A large-diameter cleaning hole 24 (24c), which is also used for the above, is provided at a position away from the movable part. As a result, as in the above-described embodiment, the cleaning operator can clean the movable part 34 from the cleaning hole 24c while looking at the movable part 34 inside the cover 33 from the cleaning hole 24c. As a result, both safety and ease of cleaning are improved with a simple structure.

１…選別装置
２，３２…搬送手段としてのベルトコンベア
４，３４…搬送部となる搬送ベルト
８，１９，３３…カバー
１０…選別手段
１７…選別ゲート
１８…選別ゲート駆動部
２１（２１ａ，２１ｂ，２１ｃ）…視認部
２２（２２ａ，２２ｂ，２２ｃ）…洗浄部
２３（２３ａ，２３ｂ，２３ｃ）…洗浄用窓
２４（２４ａ，２４ｂ，２４ｃ）…洗浄穴
２５…ベローズ部
２６…ホース取付部
２７…洗浄用ホース
Ｗ…ワーク
Ｙ…搬送方向 DESCRIPTION OF SYMBOLS 1 ... Sorting device 2, 32 ... Belt conveyor as a transport means 4, 34 ... Conveying belt 8, 19, 33 ... Cover serving as a transport section 10 ... Sorting means 17 ... Sorting gate 18 ... Sorting gate drive section 21 (21a, 21b) , 21c) ... visual recognition part 22 (22a, 22b, 22c) ... cleaning part 23 (23a, 23b, 23c) ... cleaning window 24 (24a, 24b, 24c) ... cleaning hole 25 ... bellows part 26 ... hose attachment part 27 ... Hose for cleaning W ... Workpiece Y ... Transfer direction

Claims (1)

循環駆動される搬送部（４）でワーク（Ｗ）を所定の搬送方向（Ｙ）に搬送する搬送手段（２，３２）と、
前記搬送手段に搬送される前記ワークを押すように選別ゲート（１７）を駆動する駆動部（１８）を有し、前記選別ゲートで前記ワークを前記搬送手段から押し出して選別する選別手段（１０）とを備えた選別装置（１）において、
前記搬送手段または前記選別手段の露出する可動部位（４，１８，３４）にはカバー（８，１９，３３）が設けられており、該カバーに、その内部の前記可動部位を視認するための視認部（２１）となる透明な洗浄用窓（２３）と、該可動部位を洗浄するための洗浄部（２２）となる洗浄穴（２４）と、前記洗浄穴の周縁部に設けられたベローズ部（２５）を介して洗浄用ホース（２７）を前記カバーの内部に連通させる短管状のホース取付部（２６）と、を設けたことを特徴とする選別装置。 A transport means (2, 32) for transporting the workpiece (W) in a predetermined transport direction (Y) by the transport section (4) driven in circulation;
A selection means (10) having a drive unit (18) for driving a selection gate (17) so as to push the workpiece conveyed to the conveyance means, and for sorting the workpiece by pushing out the workpiece from the conveyance means by the selection gate. In a sorting device (1) comprising:
A cover (8, 19, 33) is provided on the movable part (4, 18, 34) exposed by the conveying means or the sorting means, and the movable part (4, 18, 33) is provided on the cover for visually recognizing the movable part inside the cover. A transparent cleaning window (23) that becomes a visual recognition part (21), a cleaning hole (24) that becomes a cleaning part (22) for cleaning the movable part, and a bellows provided at the peripheral part of the cleaning hole A sorting apparatus comprising: a short tubular hose attachment portion (26) for communicating a cleaning hose (27) with the inside of the cover via a portion (25).
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