JPH081517A - Air blast apparatus - Google Patents
Air blast apparatusInfo
- Publication number
- JPH081517A JPH081517A JP14041394A JP14041394A JPH081517A JP H081517 A JPH081517 A JP H081517A JP 14041394 A JP14041394 A JP 14041394A JP 14041394 A JP14041394 A JP 14041394A JP H081517 A JPH081517 A JP H081517A
- Authority
- JP
- Japan
- Prior art keywords
- projection
- air blast
- hopper
- pressure
- jet
- 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
Links
Landscapes
- Cleaning In General (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、投射室内でエアブラス
トノズルから各種ワークへ投射材を噴射してバリ取り、
スケール落とし、塗膜剥離等を行なうエアブラスト装置
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to deburring by ejecting a projection material from an air blast nozzle onto various works in a projection chamber.
The present invention relates to an air blast device that removes scale, removes a coating film, and the like.
【0002】[0002]
【従来の技術】一般に、エアブラストノズルにより研掃
作業を行う投射室に投射材の回収装置を介して集塵装置
を接続させたエアブラスト装置のエアブラスト方式とし
ては重力投射式と加圧投射式がある。重力投射式のエア
ブラスト装置は図4に示すように、重力投射用エアブラ
ストノズル1のノズル本体2に形成した図示されない中
空部に圧縮空気供給管3と投射材供給用のホース4が連
結され、このホース4の一端は投射材Sを収容するホッ
パ5の底部開口6に二次空気を吸引可能に臨ませてあっ
て、圧縮空気供給管3に設けたバルブ7を開くと、圧縮
空気がノズル本体2の前記中空部へ噴出し、これにより
該中空部に生ずる負圧を利用してホッパ5内の投射材S
をホース4を介してノズル本体2内へ吸引し、その先端
より加速して投射室8内のワークへ噴射させて研掃を行
う。そして、研掃後の投射材及び除去されたバリや投射
材細片などの粉塵は、投射室8の底部に連結した回収管
9から例えばサイクロン型式などの回収装置へ搬送さ
れ、投射材Sは分離、回収されてホッパ5へ送られ、粉
塵は集塵装置へ導入されて分離除去される構成となって
いる。2. Description of the Related Art Generally, gravity blasting and pressure blasting are available as air blasting systems in which a dust collecting device is connected to a projection chamber for carrying out a blasting work with an air blast nozzle through a blasting material collecting device. There is a formula. As shown in FIG. 4, the gravity projection type air blast device has a compressed air supply pipe 3 and a hose 4 for supplying projection material connected to a hollow portion (not shown) formed in the nozzle body 2 of the gravity projection air blast nozzle 1. , One end of the hose 4 is made to face the bottom opening 6 of the hopper 5 for containing the shot material S so that the secondary air can be sucked, and when the valve 7 provided in the compressed air supply pipe 3 is opened, the compressed air is released. The shot material S in the hopper 5 is jetted out into the hollow portion of the nozzle body 2 and the negative pressure generated in the hollow portion is used.
Is sucked into the nozzle main body 2 through the hose 4, accelerated from the tip thereof, and jetted to the work in the projection chamber 8 to carry out polishing. Then, the blast material after blasting and dust such as burrs and blast material particles that have been removed are conveyed from a recovery pipe 9 connected to the bottom of the projection chamber 8 to a recovery device such as a cyclone type, and the blast material S is The dust is separated and collected and sent to the hopper 5, and the dust is introduced into the dust collector and separated and removed.
【0003】一方、加圧投射式のエアブラスト装置は図
5に示すように、加圧投射用エアブラストノズル10の
ノズル本体11に連結した投射材圧送用のホース12の
一端を加圧タンク13の下部に形成した混合室14の一
端に連結してこの混合室14の他端には圧縮空気管15
を連結し、途中の分岐管16の先端は上向きとされて山
形状の開閉弁17が昇降自在に嵌着させてあり、開閉弁
17は上昇時にその山形部が加圧タンク13の上部に形
成した投射材受部18の隔壁19の開口20に当接して
これを閉鎖するとともに分岐管16の上方に形成した排
気口22を開放し、一方、下降時は開口20の開放及び
排気口22の閉鎖が行われる。そして、投射材受部18
の上方には投射材Sのホッパ21が位置させてあって、
圧縮空気管15のバルブ23を開くと、圧縮空気が分岐
管16及び混合室14へ供給され、分岐管16へ入った
圧縮空気は開閉弁17の内部へ進入してこれを上昇さ
せ、開口20へ圧縮させてこれを閉鎖するとともに排気
口22を開放させる。この結果、ホッパ21内の投射材
Sの加圧タンク13内への流下は停止し、該加圧タンク
13内へは排気口22より圧縮空気が放出され、その内
圧と圧縮空気管15内との圧力均衡が保たれる。On the other hand, in the pressure projection type air blasting device, as shown in FIG. 5, one end of a hose 12 for feeding a projection material connected to a nozzle body 11 of a pressure projection air blast nozzle 10 is connected to a pressure tank 13. Is connected to one end of a mixing chamber 14 formed in the lower part of the
Is connected, and the tip of the branch pipe 16 on the way is directed upward, and a mountain-shaped on-off valve 17 is fitted so as to be able to move up and down. When the on-off valve 17 rises, its mountain portion is formed above the pressurizing tank 13. The projection material receiving portion 18 comes into contact with and closes the opening 20 of the partition wall 19 and opens the exhaust port 22 formed above the branch pipe 16. On the other hand, when descending, the opening 20 is opened and the exhaust port 22 is opened. Closure takes place. Then, the projection material receiving portion 18
The hopper 21 of the projection material S is located above the
When the valve 23 of the compressed air pipe 15 is opened, the compressed air is supplied to the branch pipe 16 and the mixing chamber 14, and the compressed air that has entered the branch pipe 16 enters the inside of the on-off valve 17 and raises it to open the opening 20. Then, the exhaust port 22 is opened. As a result, the flow of the shot material S in the hopper 21 into the pressurized tank 13 is stopped, and compressed air is discharged into the pressurized tank 13 through the exhaust port 22. The pressure balance of is maintained.
【0004】そして、加圧タンク13と混合室14との
接続部に設けた図示されない調整弁を開くと、加圧タン
ク13内の投射材Sは混合室14内へ流下して前記圧縮
空気管15からの圧縮空気と混合状態となり、ホース1
2を経てノズル本体11へ圧送されてその先端より投射
室8内のワークへ噴射されて研掃が行われ、研掃後の投
射材S及び発生粉塵は前記同様に処理される。しかし
て、加圧タンク13内の投射材Sが減少したら、バルブ
23を閉じて圧縮空気の供給を絶つと、開閉弁17が下
降して開口20が開放され、ホッパ21内の投射材Sが
投射材受部18を経て加圧タンク13内へ流下して補給
が行われ、補給が終了したらバルブ23を開いて開閉弁
17により開口20を閉鎖し、研掃作業を継続する構成
である。Then, when a regulating valve (not shown) provided at the connecting portion between the pressure tank 13 and the mixing chamber 14 is opened, the shot material S in the pressure tank 13 flows down into the mixing chamber 14 and the compressed air pipe. Hose 1 is mixed with the compressed air from 15.
2 is pressure-fed to the nozzle main body 11 and sprayed from the tip thereof to the work in the projection chamber 8 to perform blasting, and the blast material S and dust generated after blasting are treated in the same manner as described above. Then, when the blast material S in the pressurizing tank 13 decreases, when the valve 23 is closed to stop the supply of the compressed air, the opening / closing valve 17 descends to open the opening 20, and the blast material S in the hopper 21 is removed. Replenishment is performed by flowing down into the pressurized tank 13 via the projectile receiving portion 18, and when replenishment is completed, the valve 23 is opened and the opening / closing valve 17 closes the opening 20 to continue the scouring work.
【0005】このようにエアブラスト装置のエアブラス
ト方式としては以上のように重力投射式と加圧投射式が
あるが、後者の加圧投射式は投射材Sが高圧の圧縮空気
と共にノズル本体11まで圧送されて両者が一緒となっ
てその先端より加速されて噴出するので、重力投射式よ
りは強力な研掃が可能で研掃力が優れ研摩効率も高い
が、若干構造が複雑になってノズル摩耗も早く高価にな
るので、使用目的その他に応じて重力投射式と加圧投射
式とが適宜選択使用されている。As described above, as the air blast system of the air blast device, there are the gravity projection system and the pressure projection system as described above. In the latter pressure projection system, the blast material S is high pressure compressed air and the nozzle body 11 is used. Since they are pumped up to each other and jet together by accelerating from the tip, they are capable of stronger grinding and sweeping than the gravity projection type and have excellent grinding and sweeping power and high polishing efficiency, but the structure is slightly complicated. Since the nozzle wears quickly and becomes expensive, the gravity projection type and the pressure projection type are appropriately selected and used according to the purpose of use and the like.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、寸度、
形状、材質、研掃目的等の異なる多品種のワークの研掃
処理をせねばならぬ場合或いは試作、研究段階でワーク
に対する研掃条件を種々変更する必要がある混合等で
は、処理能力の違う重力投射式、加圧投射式のエアブラ
スト装置をそれぞれ設置して処理しているため、投射
室、回収装置、投射材用ホッパ(加圧タンク)及び集塵
装置を一組として構成されるエアブラスト装置を複数組
設置することとなり、広い設置面積を要するとともに設
備費が高くなるという課題がある。However, the size,
The processing capacity is different when it is necessary to perform the blasting treatment of various kinds of workpieces with different shapes, materials, blasting purposes, etc. Since the gravity blast type and the pressure blast type air blasting devices are installed and treated respectively, the air that is composed of the projection chamber, the collection device, the hopper (pressurization tank) for the projection material, and the dust collecting device as one set Since a plurality of sets of blast devices are installed, there is a problem that a large installation area is required and the equipment cost is increased.
【0007】[0007]
【課題を解決するための手段】前記のような課題を解決
した本発明のエアブラスト装置は、エアブラストノズル
により研掃作業を行う投射室に投射材の回収装置を介し
て集塵装置を接続させたエアブラスト装置において、前
記回収装置に回収投射材収納用のホッパを連設して該ホ
ッパの底部にはその下方に設置される加圧タンクの投射
材受部に排出端が臨む投射材排出用の導管を続かせて該
導管の中間部に管状接続部と投射材流路の開閉装置とを
順次設け、また、前記投射室には前記加圧タンクにホー
スを介して接続される加圧投射用エアブラストノズル
と、前記導管の分岐口にホースを介して接続される重力
投射用エアブラストノズルとを配置したことを特徴とす
るものである。In the air blasting device of the present invention which has solved the above-mentioned problems, a dust collecting device is connected to a projection chamber for performing a blasting work by an air blast nozzle via a projection material collecting device. In the air blasting device, the hopper for storing the recovered blast material is connected to the recovery device, and the blast material at the bottom of the hopper has the discharge end facing the blast material receiving portion of the pressure tank installed below the hopper. A pipe for discharge is continued, and a tubular connection part and an opening / closing device for the projection material flow path are sequentially provided in the middle part of the conduit, and the projection chamber is connected to the pressure tank via a hose. An air blast nozzle for pressure projection and an air blast nozzle for gravity projection connected to a branch port of the conduit via a hose are arranged.
【0008】[0008]
【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。なお、従来例と同一部分については、同一
図符号を付して説明を省略する。図1において、投射室
8の側方には縦方向として回収管9が配設され、この回
収管9の先端は回収装置24の筒体25の上部側へ回収
した投射材等を含む含塵気流を接線方向として供給可能
に接続され、筒体25の下部は全体が円錐形状で下端の
排出口26を回収装置24の下部に続かせた回収投射材
収納用のホッパ27の上部開口28に臨ませてあり、従
って、ホッパ27は回収装置24より送出される投射材
Sを収納可能となっている。Embodiments of the present invention will now be described in detail with reference to the drawings. The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. In FIG. 1, a collection pipe 9 is arranged in the vertical direction at the side of the projection chamber 8, and the tip of the collection pipe 9 is dust-containing containing the projection material collected to the upper side of the tubular body 25 of the collection device 24. The lower part of the tubular body 25 is conical in shape so that the air flow can be supplied in a tangential direction, and the discharge port 26 at the lower end is connected to the lower part of the recovery device 24 to the upper opening 28 of the hopper 27 for storing the recovered projection material. Therefore, the hopper 27 can accommodate the projection material S sent from the recovery device 24.
【0009】この回収投射材収納用のホッパ27は図2
に示すように、下部開口29を有しその下端には投射材
排出用として後記する開閉装置35を介して上部導管3
0aと下部導管30bに分割された導管30が取り付け
られて共通の投射材通路31を形成している。そして、
下部導管30bの排出端32は投射室8の側方に配設さ
れた加圧投射用の加圧タンク13の上部の投射材受部1
8へ位置させてあり、また、上部導管30aの一側には
管状接続部33がその先端を投射材通路31へ臨ませた
状態で設けてあり、この管状接続部33の他端は投射室
8内へ臨ませた重力投射用エアブラストノズル1のノズ
ル本体2を先端に連結したホース4の基端に接続してあ
る。また、管状接続部33の投射材流路31に臨ませた
端部には上部導管30aに保持された二次空気の吸引管
34の先端開口が位置させてあり、その他端開口は上部
導管30aの外部に位置させてあって図示されないプラ
グにより開閉自在としてある。The hopper 27 for storing the collected projection material is shown in FIG.
As shown in FIG. 3, the upper conduit 3 has a lower opening 29 and a lower end thereof through an opening / closing device 35 for discharging the projection material.
0a and the lower conduit 30b are attached to each other to form a common blast material passage 31. And
The discharge end 32 of the lower conduit 30b is located at the side of the projection chamber 8 and is a projection material receiving portion 1 above the pressure tank 13 for pressure projection.
8 and a tubular connecting portion 33 is provided on one side of the upper conduit 30a with its tip facing the projection material passage 31, and the other end of the tubular connecting portion 33 has the other end. Nozzle body 2 of gravity blasting air blast nozzle 1 facing inside 8 is connected to the base end of hose 4 connected to the tip. Further, a tip opening of a suction pipe 34 for the secondary air held in the upper conduit 30a is located at the end of the tubular connecting portion 33 facing the projection material flow path 31, and the other end opening is the upper conduit 30a. It is located outside and can be opened and closed by a plug (not shown).
【0010】また、この管状接続部33の下側にある上
部導管30aと下部導管30bの境界部には、投射材流
路3を開閉して投射材Sの流出・停止の切り換えを行う
開閉装置35が設けてある。これは導管30a下端に水
平状として嵌着固定した上部案内板36を有し、この上
部案内板36の下方には所定の隙間を設けて下部案内板
37がボルト等により平行に固定保持させてあり、この
下部案内板37には下部導管30bがその上端を挿入固
定した状態で上部導管30aと同心に保持させて導管3
0を形成している。また、上部案内板36と下部案内板
37との間に形成した前記隙間には、導管30の内径に
対応した大きさの孔部39を備えた開閉板38が摺動可
能に挿通させてある。そして、上部案内板36、下部案
内板37の開閉板38に対向する面にはそれぞれ弾性部
材等よりなるシール材40、40が設けられ、ている。
なお、図において41は開閉板38の把手、42、42
は下部案内板37の下面の所定の位置に取り付けた位置
決め用のストッパである。At the boundary between the upper conduit 30a and the lower conduit 30b on the lower side of the tubular connecting portion 33, the opening / closing device for opening / closing the blast material flow path 3 to switch outflow / stop of the blast material S. 35 is provided. This has an upper guide plate 36 horizontally fitted and fixed to the lower end of the conduit 30a, and a predetermined gap is provided below the upper guide plate 36 so that the lower guide plate 37 is fixed and held in parallel by bolts or the like. The lower guide plate 37 has a lower conduit 30b held concentrically with the upper conduit 30a with its upper end inserted and fixed.
0 is formed. An opening / closing plate 38 having a hole 39 having a size corresponding to the inner diameter of the conduit 30 is slidably inserted into the gap formed between the upper guide plate 36 and the lower guide plate 37. . Sealing members 40, 40 made of elastic members or the like are provided on the surfaces of the upper guide plate 36 and the lower guide plate 37 facing the opening / closing plate 38, respectively.
In the figure, 41 is a handle of the opening / closing plate 38, 42, 42
Is a positioning stopper attached to a predetermined position on the lower surface of the lower guide plate 37.
【0011】一方、前記した回収装置24の頂壁には出
口管43が立設してあり、該出口管43はダクト44を
経て集塵装置45の粉塵気流用入口部46へ接続されて
いる。なお、図において、47は排風機、48は投射室
8内に設置したワーク載置用ターンテーブル、49はホ
ッパ27の支脚、50は圧縮空気源へ連結された圧縮空
気の主管である。On the other hand, an outlet pipe 43 is erected on the top wall of the above-mentioned collecting device 24, and the outlet pipe 43 is connected to the dust airflow inlet portion 46 of the dust collecting device 45 via the duct 44. . In the drawing, 47 is an exhaust fan, 48 is a work placement turntable installed in the projection chamber 8, 49 is a support leg of the hopper 27, and 50 is a main pipe of compressed air connected to a compressed air source.
【0012】[0012]
【作用】次に、本実施例の作動を説明する。まず、重力
投射式のエアブラスト装置により研掃する場合は、開閉
装置35の開閉板38を把手41により図2の位置から
左側へ摺動させ、孔部39を図3の鎖線位置として投射
材流路31を閉鎖し、投射材Sの加圧タンク13側への
流出を停止の状態とするとともに吸引管34の外端を開
放させておく。次いで、ワークをターンテーブル48上
へ載置して集塵装置45を作動させるとともにバルブ7
を開くと、主管50、圧縮空気管3を経て圧縮空気が重
力投射用エアブラストノズル1のノズル本体2へ供給さ
れる。これにより前記同様にホッパ27内の投射材S
は、吸引管34よりの吸引気流と共に管状接続部33よ
り吸引され、ホース4を経て重力投射用エアブラストノ
ズル1のノズル本体2内へ進入し、加速されて先端より
噴出し、ワークの研掃が行われる。Next, the operation of this embodiment will be described. First, in the case of blasting with a gravity projection type air blast device, the opening / closing plate 38 of the opening / closing device 35 is slid to the left side from the position of FIG. 2 by the handle 41, and the hole 39 is set as the chain line position of FIG. The flow path 31 is closed to stop the flow of the shot material S to the pressure tank 13 side, and the outer end of the suction pipe 34 is opened. Next, the work is placed on the turntable 48 to operate the dust collecting device 45 and the valve 7
When is opened, compressed air is supplied to the nozzle body 2 of the gravity blast air blast nozzle 1 through the main pipe 50 and the compressed air pipe 3. As a result, similarly to the above, the projection material S in the hopper 27 is
Is sucked from the tubular connecting portion 33 together with the suction airflow from the suction pipe 34, enters the nozzle body 2 of the air blast nozzle 1 for gravity projection through the hose 4, and is accelerated and jetted from the tip to clean the workpiece. Is done.
【0013】そして、研掃後の投射材S及びバリ等の発
生粉塵は、集塵装置45の吸引作用により含塵気流とし
て回収管9より回収装置24の上部へ導入されて該筒体
25内を旋回下降する。この間に投射材Sは含塵気流中
より分離して落下し、排出口26及びホッパ27の上部
開口28、下部開口29を経て投射材流路31を通って
開閉板38上へ落下堆積し、これらは再び管状接続部3
3より吸引されて重力投射用エアブラストノズル1のノ
ズル本体2へ還流し、連続的に研掃作業が行われる。一
方、投射材Sを分離した含塵気流は出口管43より吸い
出されてダクト44、入口部46を経て集塵装置45中
へ導入され除塵される。このようにして研掃終了後は、
バルブ7を閉めてワークを取り出し、集塵装置45を停
止させる。The dust particles generated from the blast material S and burrs after the blasting are introduced into the upper part of the collecting device 24 from the collecting pipe 9 as a dust-containing air stream by the suction action of the dust collecting device 45, and then inside the cylindrical body 25. Turn down. During this time, the shot material S separates from the dust-containing air stream and falls, passes through the discharge port 26, the upper opening 28 and the lower opening 29 of the hopper 27, passes through the shot material flow path 31, and falls and accumulates on the opening / closing plate 38. These are again tubular connections 3
3 is sucked and returned to the nozzle body 2 of the gravity blasting air blast nozzle 1, and the scouring work is continuously performed. On the other hand, the dust-containing airflow from which the blast material S has been separated is sucked out from the outlet pipe 43, introduced into the dust collector 45 through the duct 44 and the inlet portion 46, and dust is removed. After finishing the cleaning in this way,
The valve 7 is closed, the work is taken out, and the dust collector 45 is stopped.
【0014】次に、加圧投射式のエアブラスト装置とし
て使用する場合は、吸引管34の外端をプラグにより閉
鎖するとともに開閉板38を図2の位置とし、孔部39
により上、下の投射材通路31を連通させて投射材Sを
流出の状態とする。次いで、集塵装置45を作動させた
のちバルブ23を開くと、圧縮空気が主管50、圧縮空
気管15より加圧タンク13の分岐管16及び混合室1
4へ流入する。この結果、前記同様にホース12を経て
投射材Sが圧縮空気により圧送され、加圧投射式エブラ
ストノズル10のノズル本体11より噴出してワークの
研掃が行われ、また、研掃後の投射材S及び発生粉塵も
前記同様に処理され、回収された投射材Sはホッパ27
の下部開口29から孔部39を経て投射材通路31中を
流下し、導管30bの排出端32より加圧タンク13の
投射材受部18へ放出され、前記同様にバルブ23の操
作によりこれら回収された投射材Sは加圧タンク13内
へ補給され、再使用される。Next, when using as a pressure projection type air blast device, the outer end of the suction tube 34 is closed by a plug, the opening / closing plate 38 is set to the position shown in FIG.
Thus, the upper and lower blast material passages 31 are communicated with each other to bring the blast material S into an outflow state. Next, after the dust collector 45 is operated and the valve 23 is opened, the compressed air flows from the main pipe 50, the compressed air pipe 15 to the branch pipe 16 of the pressurized tank 13 and the mixing chamber 1.
Inflow to 4. As a result, similarly to the above, the shot material S is pressure-fed by the compressed air through the hose 12, jetted from the nozzle body 11 of the pressure projection type blast nozzle 10, and the work is ground and cleaned. The blast material S and the generated dust are processed in the same manner as described above, and the blast material S collected is collected by the hopper 27.
From the lower opening 29 through the hole 39 into the blast material passage 31, is discharged from the discharge end 32 of the conduit 30b to the blast material receiving portion 18 of the pressure tank 13, and is recovered by operating the valve 23 as described above. The blasted material S thus prepared is replenished into the pressure tank 13 and reused.
【0015】今、このような重力投射式エアブラスト方
式と加圧投射式エアブラスト方式の両機能を兼ね備えた
本発明装置によりダイカスト用金型を再生処理する場合
として、先ずバルブ23を開いて加圧投射式エアブラス
トノズル10により金型表面に付着した不純物を迅速か
つ効率よく研掃除去し、その後バルブ23を閉じて開閉
装置35により投射材通路31を閉鎖して加圧タンク1
3への投射材Sの流下を停止としたうえバルブ7を開い
て重力投射式エアブラストノズル1による研掃に切り換
えたところ、加圧投射式エアブラストノズル10による
一通りの表面研掃された金型表面に対し、重力投射式エ
アブラストノズル1で投射強度を弱めて必要以上の金型
表面の研掃を避け損耗を防ぎながらエアブラストを行う
ことができ、極めて効果的且つ経済的に表面処理が行わ
れ、金型の優れた再生表面を容易に得ることができた。Now, as a case where the die casting die is reprocessed by the device of the present invention having both the functions of the gravity projection type air blast system and the pressure projection type air blast system, first, the valve 23 is opened to apply. Impurities adhering to the die surface are swiftly and efficiently removed by the pressure projection type air blast nozzle 10, and then the valve 23 is closed and the opening / closing device 35 closes the projection material passage 31 to pressurize the tank 1.
When the flow of the shot material S to the No. 3 was stopped and the valve 7 was opened to switch to the blasting by the gravity blast type air blast nozzle 1, the surface was swept by the pressure blast type air blast nozzle 10. Air blasting can be performed on the surface of the mold with the gravity projection type air blast nozzle 1 to reduce the projection strength and avoid unnecessary polishing of the surface of the mold to prevent wear, which is extremely effective and economical. After the treatment, an excellent regenerated surface of the mold could be easily obtained.
【0016】なお、前記した実施例では加圧タンク13
を1基だけ設けたものとしているが、同様な構造の加圧
タンクを上下に連設した二重室型の加圧タンクを使用す
れば投射材の補給は研掃作業を続けながら行うことがで
き、また、圧縮空気管15の両バルブの開閉作動間にイ
ンターロックを設けて重力投射作動と加圧投射作動の作
動間違いを生じないようにしておくと安全上より好まし
いものとなる。In the above embodiment, the pressure tank 13 is used.
It is assumed that only one unit is provided, but if a double-chamber type pressure tank in which pressure tanks of the same structure are connected vertically is used, the projection material can be replenished while continuing the scouring work. In addition, it is more preferable for safety to provide an interlock between the opening and closing operations of both valves of the compressed air pipe 15 so as to prevent a mistaken operation between the gravity projection operation and the pressure projection operation.
【0017】[0017]
【発明の効果】本発明は以上の説明より明らかなよう
に、簡単な操作を行うだけでエアブラスト方式を研掃程
度の異なる重力投射式と加圧投射式との切り換えができ
るので、扱うワークの種類の変更或いは試作研究等のた
めに投射強度の増減や処理程度の変更等を要する場合
に、これに対応できて極めて便利であり、しかも、両方
式のエアブラスト作業を行うための投射室や回収装置、
集塵装置は共有で一式で済むので、設置面積が少なくて
よいうえに切換機構は簡単で安価に製作でき、多品質、
多目的の研掃作業に好適であるなど多くの利点がある。
従って、本発明は従来のエアブラスト装置の問題点を解
決したものとして業界に寄与するところ極めて大きいも
のがある。As is apparent from the above description, the present invention can switch the air blast system between the gravity projection system and the pressure projection system, which differ in the degree of blasting, by performing a simple operation. When it is necessary to increase or decrease the projection intensity or change the processing level due to the change of the type or the trial production, it is very convenient to deal with this, and moreover, the projection chamber for performing both types of air blasting work. And recovery equipment,
Since the dust collector is shared and only one set is required, the installation area is small, and the switching mechanism is simple and inexpensive to manufacture, providing high quality,
There are many advantages such as being suitable for multipurpose cleaning work.
Therefore, the present invention contributes to the industry as a solution to the problems of the conventional air blasting apparatus, and is extremely large.
【図1】本発明の実施例を示す一部切欠正面図である。FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.
【図2】本発明の実施例における投射材流路の開閉装置
の一部切欠正面図である。FIG. 2 is a partially cutaway front view of the opening / closing device for the projection material flow path according to the embodiment of the present invention.
【図3】本発明の実施例における投射材流路の開閉装置
の横断平面図である。FIG. 3 is a cross-sectional plan view of an opening / closing device for a projection material flow path according to an embodiment of the present invention.
【図4】従来の重力投射式エアブラスト装置の一部切欠
正面図である。FIG. 4 is a partially cutaway front view of a conventional gravity projection type air blasting device.
【図5】従来の加圧投射式エアブラスト装置の一部切欠
正面図である。FIG. 5 is a partially cutaway front view of a conventional pressure projection type air blasting device.
1 重力投射用エアブラストノズルノズル 4 ホース 8 投射室 10 加圧投射用エアブラストノズル 12 ホース 13 加圧タンク 18 投射材受部 24 回収装置 27 回収投射材収納用のホッパ 30 導管 32 排出端 33 管状接続部 35 投射材流路の開閉装置 45 集塵装置 1 Air Blast Nozzle Nozzle for Gravity Projection 4 Hose 8 Projection Chamber 10 Air Blast Nozzle for Pressurizing Projection 12 Hose 13 Pressurized Tank 18 Projection Material Receiver 24 Recovery Device 27 Hopper for Collecting Recovery Projection Material 30 Conduit 32 Discharge End 33 Tubular Connection part 35 Opening / closing device for projection material flow path 45 Dust collector
Claims (1)
して集塵装置(45)を接続させたエアブラスト装置におい
て、前記回収装置(24)に回収投射材収納用のホッパ(27)
を連設して該ホッパ(27)の底部にはその下方に設置され
る加圧タンク(13)の投射材受部(18)に排出端(32)が臨む
投射材排出用の導管(30)を続かせて該導管(30)の中間部
に管状接続部(33)と投射材流路の開閉装置(35)とを順次
設け、また、前記投射室(8) には前記加圧タンク(13)に
ホース(12)を介して接続される加圧投射用エアブラスト
ノズル(10)と、前記導管(30)の管状接続部(33)にホース
(4) を介して接続される重力投射用エアブラストノズル
(1) とを配置したことを特徴とするエアブラスト装置。1. An air blasting device in which a dust collection device (45) is connected to a projection chamber (8) through a projection material recovery device (24), and the recovery device (24) is used for storing recovered projection materials. Hopper (27)
The hopper (27) is continuously connected to the bottom of the hopper (27), and the projection material receiving portion (18) of the pressurizing tank (13) installed below the hopper (27) has a discharge end (32) facing the discharge material (32). ) Are continuously provided with a tubular connection part (33) and an opening / closing device (35) for the projection material flow path in the middle part of the conduit (30), and the pressure tank is provided in the projection chamber (8). An air blast nozzle (10) for pressure projection connected to (13) via a hose (12), and a hose to the tubular connection part (33) of the conduit (30).
(4) Air blast nozzle for gravity projection connected via
(1) An air blasting device characterized in that and are arranged.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14041394A JP3429855B2 (en) | 1994-06-22 | 1994-06-22 | Air blast equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14041394A JP3429855B2 (en) | 1994-06-22 | 1994-06-22 | Air blast equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH081517A true JPH081517A (en) | 1996-01-09 |
JP3429855B2 JP3429855B2 (en) | 2003-07-28 |
Family
ID=15268157
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14041394A Expired - Fee Related JP3429855B2 (en) | 1994-06-22 | 1994-06-22 | Air blast equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3429855B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008018476A (en) * | 2006-07-11 | 2008-01-31 | Sintokogio Ltd | Shot treatment apparatus |
-
1994
- 1994-06-22 JP JP14041394A patent/JP3429855B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008018476A (en) * | 2006-07-11 | 2008-01-31 | Sintokogio Ltd | Shot treatment apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP3429855B2 (en) | 2003-07-28 |
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