JP2013180376A - Protection mechanism for observation window - Google Patents

Protection mechanism for observation window Download PDF

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JP2013180376A
JP2013180376A JP2012046148A JP2012046148A JP2013180376A JP 2013180376 A JP2013180376 A JP 2013180376A JP 2012046148 A JP2012046148 A JP 2012046148A JP 2012046148 A JP2012046148 A JP 2012046148A JP 2013180376 A JP2013180376 A JP 2013180376A
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observation window
viewing window
blower
lower edge
protection mechanism
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JP2012046148A
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JP5453474B2 (en
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Kenji Ikebe
健二 池辺
Shigeharu Fujimoto
重春 藤元
Toshiro Ichihara
敏朗 市原
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide an observation window protection mechanism capable of maintaining transparency for a long period of time, while being less likely to cause collision of a projection agent, etc.SOLUTION: A projection agent ejected from a nozzle collides with the surface of a workpiece and a portion thereof is reflected to scatter toward an observation window 8, when removing the coating, etc., on the surface of the workpiece 3 by using nozzles 4 or 5. Then, the projection agent is captured by an air curtain ejected from a lower edge part of the observation window 8 and directed upward, when approaching the observation window 8, so as to go up through without colliding against the observation window 8.

Description

本発明は、サンドブラスト装置等に設けられる覗き窓の保護機構に関する。   The present invention relates to a viewing window protection mechanism provided in a sandblasting apparatus or the like.

特許文献１には電線の表面の絶縁皮膜を除去するためのサンドブラスト装置が開示されている。このサンドブラスト装置は円筒状の回転部材を固定部材間に回転可能に設け、この回転部材の円周方向の所定個所に複数の覗き窓を形成し、円筒部材内で行われる電線の絶縁皮膜の除去状況を外側から観測できるようにしている。   Patent Document 1 discloses a sandblasting device for removing an insulating film on the surface of an electric wire. This sandblasting device is provided with a cylindrical rotating member rotatably between fixed members, and a plurality of viewing windows are formed at predetermined locations in the circumferential direction of the rotating member, and the insulation film of the electric wire is removed in the cylindrical member. The situation can be observed from the outside.

また空間内の空気を強制的に滞留させる送風機として、特許文献２に開示されるものが知られている。この送風機はパーティションパネルの上端部にライン状に空気循環手段を設け、カーテン状に上方に空気を噴き出すようにしている。   Moreover, what is disclosed by patent document 2 is known as an air blower which forcibly retains the air in space. This blower is provided with air circulation means in a line shape at the upper end of the partition panel so as to blow out air upward in a curtain shape.

特開平４−１６３４３号公報JP-A-4-16343 特開２０００−１５７３９２号公報JP 2000-157392 A

図３は従来のサンドブラスト装置の覗き窓の問題点を説明した図であり、ノズルから噴出した粒子（投射剤）がワークに当たった後に反射して、覗き窓に当たり、徐々に覗き窓の透明度が失われてしまう。このため、３日に１度の割合で交換しなければならず、作業が面倒でコスト的にも無駄が生じている。   FIG. 3 is a diagram for explaining the problems of the viewing window of the conventional sandblasting device. The particles (projection agent) ejected from the nozzle are reflected after hitting the work, hit the viewing window, and the transparency of the viewing window gradually increases. It will be lost. For this reason, it must be replaced once every three days, which is cumbersome and wasteful in terms of cost.

そこで、特許文献２の送風機を用いて粒子が覗き窓に当たらないようにすることが考えられるが、送風機の方向によっては却って内部の空気の流れを乱し、早期に覗き窓の透明度を失うことになる。   Therefore, it is conceivable to prevent the particles from hitting the viewing window using the blower of Patent Document 2, but depending on the direction of the blower, the flow of air inside may be disturbed and the transparency of the viewing window may be lost early. become.

また、覗き窓を投射剤等から保護する場合には、投射剤が当たり易い箇所が存在し、この位置は個々の装置によって微妙に異なる。したがって、単に送風機を配置しても覗き窓の透明度を長期に亘って維持することは困難である。   Moreover, when protecting a viewing window from a propellant etc., the location which a propellant is easy to hit exists, and this position changes delicately with each apparatus. Therefore, it is difficult to maintain the transparency of the observation window over a long period even if the blower is simply arranged.

上記課題を解決するため本発明に係る覗き窓の保護機構は、覗き窓は密閉された空間を形成するボックスの一部に形成され、この空間内で覗き窓の下縁部の近傍に下縁部に沿ってライン状の送風装置を配置し、更にこの送風装置は下縁部に沿って複数の送風ユニットから構成され、各送風ユニットは個別に風量及び噴出角度が調整可能とされた構成とした。   In order to solve the above-mentioned problems, the protection mechanism for the viewing window according to the present invention is such that the viewing window is formed in a part of a box that forms a sealed space, and the lower edge in the vicinity of the lower edge of the viewing window in this space. A line-shaped air blower is arranged along the section, and the air blower is composed of a plurality of air blow units along the lower edge, and each air blow unit is individually adjustable in air volume and jet angle. did.

前記覗き窓としては、サンドブラスト装置の覗き窓に限らず、加熱炉、塗装チャンバー、工作機械などが考えられる。   The viewing window is not limited to the viewing window of a sandblasting apparatus, but may be a heating furnace, a coating chamber, a machine tool, or the like.

本発明に係る覗き窓の保護機構によれば、覗き窓に投射剤などの粒子が衝突することを効果的に防止することができるので、例えばサンドブラスト装置覗き窓に適用することで、交換の頻度が大幅に改善される。 According to the observation mechanism for the observation window according to the present invention, it is possible to effectively prevent particles such as a propellant from colliding with the observation window. Is greatly improved.

本発明に係るサンドブラスト機の断面図Sectional view of sandblasting machine according to the present invention 本発明に係るサンドブラスト機の要部の斜視図The perspective view of the principal part of the sandblasting machine which concerns on this invention 従来のサンドブラスト機の問題点を説明した図Diagram explaining problems of conventional sandblasting machine

以下に本発明の実施例を添付図面に基づいて説明する。実施例では本発明をサンドブラスト装置に適用した例を示したが、これに限定されるものではない。
サンドブラスト装置はボックス１にて作業空間が画成され、この作業空間の中心部にテーブル２が設けられ、このテーブル２上にワーク３がセットされている。 Embodiments of the present invention will be described below with reference to the accompanying drawings. In the embodiment, an example in which the present invention is applied to a sandblasting apparatus is shown, but the present invention is not limited to this.
In the sandblasting apparatus, a work space is defined by a box 1, a table 2 is provided at the center of the work space, and a work 3 is set on the table 2.

また、ボックス１の天井部からは投射剤を噴出するノズル４,５が垂下している。ボックス１の底部にはホッパー６を設けている。この実施例では作業の種類に応じて使い分けるために、２本のノズルを作業空間内に臨ませている。   In addition, nozzles 4 and 5 for ejecting the propellant are suspended from the ceiling of the box 1. A hopper 6 is provided at the bottom of the box 1. In this embodiment, two nozzles face the work space in order to use them according to the type of work.

更に、ボックス１の前面には作業者の手を挿入するための挿入部７が設けられ、この挿入部７よりも上方の傾斜面には覗き窓８を設け、この覗き窓８の下縁部に沿ってライン状の送風装置９を配置している。また、ボックス１内の奥、つまり前記挿入部７と反対側となる部分には、ガイド板１０，１１を配置することもある。   Further, an insertion portion 7 for inserting an operator's hand is provided on the front surface of the box 1, and a viewing window 8 is provided on an inclined surface above the insertion portion 7, and a lower edge portion of the viewing window 8. A line-shaped air blower 9 is disposed along the line. In addition, guide plates 10 and 11 may be disposed in the inner part of the box 1, that is, on the part opposite to the insertion portion 7.

前記送風装置９は覗き窓８の下縁部に沿って複数の送風ユニット１２…から構成され、各送風ユニット１２は中空ヘッド１３および配管１４を備え、中空ヘッド１３の上面には複数の噴出穴１５が一列に形成されている。また各配管１４には図示しないオンオフバルブ或いは流量調整バルブが設けられ、且つ中空ヘッド１３および配管１４は個々に交換可能とされている。   The blower 9 is composed of a plurality of blower units 12 along the lower edge of the viewing window 8, and each blower unit 12 includes a hollow head 13 and a pipe 14, and a plurality of ejection holes are formed on the upper surface of the hollow head 13. 15 are formed in a line. Each pipe 14 is provided with an on / off valve or a flow rate adjusting valve (not shown), and the hollow head 13 and the pipe 14 can be individually replaced.

以上において、ノズル４または５を用いてワーク３の表面の皮膜等を除去しようとすると、ノズルから噴出した投射剤はワーク表面に衝突し、その一部は反射して覗き窓８に向かって飛散する。そして覗き窓８に投射剤が近付くと、覗き窓８の下縁部から噴出して上方に向うエアカーテンに補足され上方に覗き窓８に衝突せずに上方に抜ける。   In the above, when the coating film or the like on the surface of the work 3 is removed using the nozzle 4 or 5, the projecting agent ejected from the nozzle collides with the work surface, and a part of it is reflected and scattered toward the viewing window 8. To do. When the propellant approaches the viewing window 8, it is ejected from the lower edge of the viewing window 8 and is supplemented by the upwardly facing air curtain, and then comes upward without colliding with the viewing window 8.

上方に向かったエアの流れは、ボックスの壁に当たり、方向が変化し、全体として空気の流れが下向きになり、最終的にはホッパー６内に流れ込み、ワーク３から飛散した投射剤はホッパー６に捕捉され、新たな材料になる。ガイド板１０、１１を設けた場合は１０，１１に当たり効率よく流れる。   The upward air flow hits the wall of the box, the direction changes, and the air flow becomes downward as a whole, finally flows into the hopper 6, and the propellant scattered from the workpiece 3 enters the hopper 6. It is captured and becomes a new material. When the guide plates 10 and 11 are provided, the guide plates 10 and 11 are efficiently flowed.

送風装置９を配置する個所としては覗き窓８の上縁部、側縁部に沿った箇所が考えられるが、上縁部に設けると、ボックス１内の気流の流れに反し、側縁部に設けると、却って乱流を生じ、場所的には覗き窓８の下縁部に沿った部分が最適であることが、検証の結果、判明した。   Although the location along the upper edge part and side edge part of the observation window 8 can be considered as the place where the blower device 9 is disposed, if it is provided on the upper edge part, it is against the flow of the air current in the box 1 and on the side edge part. As a result of the verification, it was found that, if provided, a turbulent flow is generated, and the portion along the lower edge of the observation window 8 is optimal in terms of location.

本発明は、サンドブラスト装置、加熱炉、塗装ブースなど覗き窓を有する装置に適用することができる。   The present invention can be applied to an apparatus having a viewing window such as a sandblasting apparatus, a heating furnace, and a painting booth.

１…ボックス、２…テーブル、３…ワーク、４、５…ノズル、６…ホッパー、７…挿入部、８…覗き窓、９…送風装置、１０、１１…ガイド板、１２…送風ユニット、１３…ヘッド、１４…配管、１５…噴出穴。   DESCRIPTION OF SYMBOLS 1 ... Box, 2 ... Table, 3 ... Work, 4, 5 ... Nozzle, 6 ... Hopper, 7 ... Insertion part, 8 ... Viewing window, 9 ... Blower, 10, 11 ... Guide plate, 12 ... Blower unit, 13 ... head, 14 ... piping, 15 ... jet hole.

Claims (2)

密閉された空間を形成するボックスの一部に当該空間内を観察するための覗き窓が形成され、前記空間内で覗き窓の下縁部の近傍に下縁部に沿ってライン状の送風装置が配置され、この送風装置は下縁部に沿って複数の送風ユニットから構成され、各送風ユニットは個別に風量及び噴出角度が調整可能とされていることを特徴とする覗き窓の保護機構。 A viewing window for observing the inside of the space is formed in a part of the box forming the sealed space, and a line-shaped air blower along the lower edge in the vicinity of the lower edge of the viewing window in the space. , And the blower device is composed of a plurality of blower units along the lower edge, and each blower unit can individually adjust the air volume and the jetting angle. 請求項１に記載の保護機構において、前記覗き窓はサンドブラスト装置の覗き窓であることを特徴とする覗き窓の保護機構。
2. The protection mechanism according to claim 1, wherein the viewing window is a viewing window of a sandblasting apparatus.
JP2012046148A 2012-03-02 2012-03-02 Viewing window protection mechanism Active JP5453474B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722499A (en) * 2014-01-03 2014-04-16 昆山开信机械制造有限公司 Working door and shot peening equipment with same
CN107584324A (en) * 2017-07-19 2018-01-16 安徽宏远机械制造有限公司 A kind of Novel numerical control machine
EP3517244A1 (en) 2018-01-26 2019-07-31 Finnblast Oy Abrasive blasting cabinet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106363537B (en) * 2016-11-08 2018-05-29 浙江工业大学 A kind of temperature control abrasive Flow class joint prosthesis part curved surface turbulent flow processing unit (plant) and its method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103722499A (en) * 2014-01-03 2014-04-16 昆山开信机械制造有限公司 Working door and shot peening equipment with same
CN107584324A (en) * 2017-07-19 2018-01-16 安徽宏远机械制造有限公司 A kind of Novel numerical control machine
EP3517244A1 (en) 2018-01-26 2019-07-31 Finnblast Oy Abrasive blasting cabinet

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