JPH07136935A - Abrasive regulator in blasting device - Google Patents

Abrasive regulator in blasting device

Info

Publication number
JPH07136935A
JPH07136935A JP28950993A JP28950993A JPH07136935A JP H07136935 A JPH07136935 A JP H07136935A JP 28950993 A JP28950993 A JP 28950993A JP 28950993 A JP28950993 A JP 28950993A JP H07136935 A JPH07136935 A JP H07136935A
Authority
JP
Japan
Prior art keywords
abrasive
pipe
adjuster
port
air
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
JP28950993A
Other languages
Japanese (ja)
Other versions
JP2942124B2 (en
Inventor
Keiji Mase
恵二 間瀬
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.)
Fuji Manufacturing Co Ltd
Original Assignee
Fuji Manufacturing 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 Fuji Manufacturing Co Ltd filed Critical Fuji Manufacturing Co Ltd
Priority to JP28950993A priority Critical patent/JP2942124B2/en
Publication of JPH07136935A publication Critical patent/JPH07136935A/en
Application granted granted Critical
Publication of JP2942124B2 publication Critical patent/JP2942124B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To keep the height of the upper face of a fluidized abrasive layer inside a regulator main body constant so as to inject a stable injecting amount of abrasives from an injection nozzle. CONSTITUTION:Compressed air from the lower part passes through a porous body 47 so as to blow up fine powder abrasives 26 uniformly, and in a regulator main body 41, a lower fluidized abrasive layer and an upper air layer are formed. When a machining injection nozzle starts injecting, air is sucked and fed from an intake pipe 13 to a suction pipe 43 by means of a negative pressure, while the fluidized abrasives are sucked and fed from a suction port, 46 to the suction pipe 43 by means of a negative pressure. An injection amount and the height of the upper face Z of the abrasive layer are proportional to each other. A communicating port 16 in the lower end of a communicating pipe 15 is positioned at the preset height Hs for the required amount of the abrasives, while the lower end edge of a discharging pipe port, 12 is positioned at the same height or in the lower position. When the fluidized abrasive layer reaches the communicating port 16 and a discharging pipe 11 and clogs them, the air layer in the upper part of the regulator main body 41 serves as an air reservoir, and the abrasive layer is prevented from rising above the preset height Hs.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明は、ブラスト装置における
研磨材タンクの研磨材と空気の吸込量を調整する研磨材
調整器に関し、特に、研磨材タンク内の研磨材の安息角
が一定しないほどの微粉状態（以下、「微粉性質」とい
う）を有する研磨材を噴射するブラスト装置における研
磨材調整器に関する。なお、本発明の研磨材調整器を装
着するブラスト装置は、遠心式ではなく空気式であり、
空気式ブラスト装置には一般的に直圧式と吸込式があ
る。本発明の研磨材調整器は研磨材調整器内に圧縮空気
を吹き込んで微粉性質を有する研磨材を噴き上げて流動
状態の研磨材層を形成するものであるが、一般的な直圧
式、吸込式では流動状態の研磨材層を形成するために研
磨材調整器内に圧縮空気を吹き込まないので、本発明の
研磨材調整器を装着するブラスト装置は一般の直圧式、
吸込式とは若干異なる。しかし、本質的には異ならない
ので、本明細書においては、本発明の研磨材調整器を装
着するブラスト装置については一般の場合と同様に、直
圧式、吸込式と称する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an abrasive material regulator for adjusting the amount of air in the abrasive material tank and the amount of air suctioned in a blast machine, and more particularly to such an extent that the angle of repose of the abrasive material in the abrasive material tank is not constant. The present invention relates to an abrasive material adjuster in a blasting device for injecting an abrasive material having a fine powder state (hereinafter referred to as "fine powder property"). The blasting device equipped with the abrasive adjuster of the present invention is a pneumatic type, not a centrifugal type,
Pneumatic blasting devices are generally classified into direct pressure type and suction type. The abrasive material adjuster of the present invention is one in which compressed air is blown into the abrasive material adjuster to blow up an abrasive material having a fine powder property to form an abrasive material layer in a fluid state. Since compressed air is not blown into the abrasive material conditioner in order to form the abrasive material layer in a fluidized state, a blasting device equipped with the abrasive material conditioner of the present invention is a general direct pressure type,
Slightly different from the suction type. However, since there is no difference in nature, the blasting device equipped with the abrasive material adjuster of the present invention is referred to as a direct pressure type or a suction type in the same manner as in the general case.

【０００２】[0002]

【従来の技術】従来の研磨材調整器４０においては、図
５に示すような重力式ブラスト装置のサイクロン２３
（分級回収タンク）の下部に装着するもので、図６及び
図７にその詳細を示す。2. Description of the Related Art In a conventional polishing material conditioner 40, a cyclone 23 of a gravity type blasting device as shown in FIG.
It is attached to the bottom of the (classification collection tank), and its details are shown in FIGS. 6 and 7.

【０００３】〔図６の研磨材調整器４０の構成〕図６の
研磨材調整器４０は、次のように構成される。[Structure of Abrasive Material Adjuster 40 of FIG. 6] The abrasive material adjuster 40 of FIG. 6 is configured as follows.

【０００４】４１は調整器本体で、上縁に開口部４２を
備えた容器を成し、この開口部４２にサイクロン２３の
吐出口３５の下端縁が臨むように調整器本体４１をサイ
クロン２３に装着する。Reference numeral 41 denotes a regulator main body, which constitutes a container having an opening 42 at its upper edge, and the regulator main body 41 is attached to the cyclone 23 so that the lower end edge of the discharge port 35 of the cyclone 23 faces the opening 42. Mounting.

【０００５】４３はサクションパイプで、サクションパ
イプ４３の一端に混合流体吐出口５１が形成され、この
混合流体吐出口５１を調整器本体４１の内壁に設けた貫
通孔に連通させてサクションパイプ４３を調整器本体４
１の内壁に固定し、混合流体吐出口５１を管３４を介し
て噴射ノズル２２（図５）に連通する。Reference numeral 43 is a suction pipe, and a mixed fluid discharge port 51 is formed at one end of the suction pipe 43. The mixed fluid discharge port 51 is communicated with a through hole provided in the inner wall of the adjuster body 41 to form the suction pipe 43. Adjuster body 4
It is fixed to the inner wall of No. 1 and the mixed fluid discharge port 51 is connected to the injection nozzle 22 (FIG. 5) through the pipe 34.

【０００６】一方、サクションパイプ４３の他端は閉塞
され、この端面付近の壁面にサクションパイプ４３の内
部に連通する補助パイプ４４を立設し、補助パイプ４４
の上端の吸気口４５を調整器本体４１の開口部４２に臨
ませている。On the other hand, the other end of the suction pipe 43 is closed, and an auxiliary pipe 44 communicating with the inside of the suction pipe 43 is erected on the wall surface near this end face.
The intake port 45 at the upper end of the is exposed to the opening 42 of the adjuster body 41.

【０００７】さらに、前記補助パイプ４４を設けた位置
と前記混合流体吐出口５１との間にサクションパイプ４
３の内部と外壁面に連通する研磨材吸入口４６を設け
る。Further, the suction pipe 4 is provided between the position where the auxiliary pipe 44 is provided and the mixed fluid discharge port 51.
An abrasive material suction port 46 communicating with the inside and the outer wall surface of the nozzle 3 is provided.

【０００８】４７は多孔体で、砥石や焼結金属などのよ
うに通気性を有する。調整器本体４１の底面側を多孔体
４７で仕切り、この多孔体４７と調整器本体４１の底面
間に空気貯溜室４８を設け、この空気貯溜室４８に連通
する空気導入管４９を調整器本体４１の底面に設ける。Reference numeral 47 is a porous body having air permeability such as a grindstone or a sintered metal. The bottom surface side of the regulator body 41 is partitioned by a porous body 47, an air storage chamber 48 is provided between the porous body 47 and the bottom surface of the regulator body 41, and an air introduction pipe 49 communicating with the air storage chamber 48 is provided in the regulator body. It is provided on the bottom surface of 41.

【０００９】〔図６の研磨材調整器４０の作用〕図５に
おいて、コンプレッサなどの圧縮空気供給源から供給さ
れた圧縮空気が管３７を経て噴射ノズル２２から噴射さ
れると、サイクロン２３内の微粉性質を有する研磨材２
６が研磨材調整器４０を経て管３４を介して噴射ノズル
２２へ給送され、噴射ノズル２２より噴射され被加工物
を研磨し、その際に発生した粉塵及び研磨材２６は、キ
ャビネット２１の下部のホッパに落下し、直ちに除塵気
流に乗り、管３３を通過してキャビネット２１の上部に
あるサイクロン２３内へ送られる。[Operation of Abrasive Material Conditioner 40 of FIG. 6] In FIG. 5, when the compressed air supplied from the compressed air supply source such as the compressor is injected from the injection nozzle 22 through the pipe 37, Abrasive material 2 having fine powder properties
6 is fed to the jet nozzle 22 via the pipe 34 through the abrasive adjuster 40, and is jetted from the jet nozzle 22 to polish the workpiece, and the dust and the abrasive 26 generated at that time are stored in the cabinet 21. It falls into the hopper at the bottom, immediately catches the dust removal airflow, passes through the pipe 33, and is sent into the cyclone 23 at the top of the cabinet 21.

【００１０】なお、研磨に際して発生した粉塵は、ここ
で使用可能な研磨材２６と分級されて除塵気流に乗りダ
ストコレクタ２４へ送られ、このダストコレクタ２４の
底部に集積され、清浄な空気のみがダストコレクタ２４
の上部に設けられた排風機から大気中へ排出される。The dust generated during polishing is classified with the polishing material 26 that can be used here, is sent to the dust collector 24, is sent to the dust collector 24, and is accumulated at the bottom of the dust collector 24. Only clean air is collected. Dust collector 24
It is discharged into the atmosphere from the exhaust fan installed at the upper part of the.

【００１１】一方、調整器本体４１内の研磨材２６は流
動状態になる。コンプレッサなどの圧縮空気供給源から
供給された圧縮空気が図６に示すように管３２を経て空
気導入管４９から空気貯溜室４８内へ供給され、この空
気貯溜室４８内の圧縮空気が多孔体４７より均一な状態
で調整器本体４１内へ撹拌空気として噴き込まれること
により、この撹拌空気で調整器本体４１内の研磨材２６
が噴き上げられて流動状態になり、調整器本体４１内は
上方の空気の層（以下、「空気層」という）と下方の流
動状態の研磨材２６の層（以下、「研磨材層」という）
に分かれる。On the other hand, the abrasive 26 in the adjuster body 41 is in a fluid state. As shown in FIG. 6, compressed air supplied from a compressed air supply source such as a compressor is supplied from an air introduction pipe 49 into the air storage chamber 48 through a pipe 32, and the compressed air in the air storage chamber 48 is a porous body. By being blown into the adjuster body 41 in a more uniform state than 47 as agitating air, the agitating material 26 in the adjuster body 41 is agitated by the agitating air.
Is sprayed into a fluidized state, and the inside of the regulator body 41 is an upper air layer (hereinafter referred to as “air layer”) and a lower fluidized layer of the abrasive 26 (hereinafter referred to as “abrasive layer”).
Divided into

【００１２】さらに、図５において圧縮空気が噴射ノズ
ル２２から噴射されると、噴射ノズル２２と調整器本体
４１のサクションパイプ４３を連通する管３４及びサク
ションパイプ４３内が負圧になるので、サイクロン２３
内の空気がサイクロン２３下端の吐出口３５を経て調整
器本体４１内へ流入し調整器本体４１内の上部の空気が
補助パイプ４４の吸気口４５からサクションパイプ４３
内へ吸引され、一方、調整器本体４１内の流動状態の研
磨材層内の研磨材２６及び空気は研磨材吸入口４６を経
てサクションパイプ４３内へ吸い込まれ、サクションパ
イプ４３内で空気と研磨材２６の混合流体が形成され、
この混合流体は管３４を経て図５の噴射ノズル２２から
噴射される。Further, in FIG. 5, when compressed air is jetted from the jet nozzle 22, a negative pressure is generated in the pipe 34 and the suction pipe 43 which connect the jet nozzle 22 and the suction pipe 43 of the adjuster body 41, so that a cyclone is generated. 23
The air inside flows into the regulator body 41 through the discharge port 35 at the lower end of the cyclone 23, and the air above the regulator body 41 flows from the intake port 45 of the auxiliary pipe 44 to the suction pipe 43.
On the other hand, the polishing material 26 and air in the fluidized polishing material layer in the adjuster body 41 are sucked into the suction pipe 43 through the polishing material suction port 46, and are abraded with the air in the suction pipe 43. A mixed fluid of material 26 is formed,
This mixed fluid is jetted from the jet nozzle 22 of FIG.

【００１３】また、サイクロン２３内の研磨材２６は、
サイクロン２３内の空気が吐出口３５を経て調整器本体
４１内へ流入する気流に乗って、吐出口３５から少しづ
つ渦状に落下し調整器本体４１内へ供給される。The abrasive material 26 in the cyclone 23 is
The air in the cyclone 23 rides on the airflow flowing into the adjuster body 41 through the discharge port 35, and is gradually and spirally dropped from the discharge port 35 to be supplied into the adjuster body 41.

【００１４】〔図７の研磨材調整器４０の構成〕図７の
研磨材調整器４０は、次のように構成される。[Structure of Abrasive Material Adjuster 40 of FIG. 7] The abrasive material adjuster 40 of FIG. 7 is configured as follows.

【００１５】調整器本体４１、多孔体４７、空気貯溜室
４８等は、図６の研磨材調整器４０と同様である。The adjuster body 41, the porous body 47, the air storage chamber 48, etc. are the same as those of the abrasive adjuster 40 shown in FIG.

【００１６】４３ａはサクションパイプで、サクション
パイプ４３ａの壁面に研磨材吸入口４６を設け、一端の
混合流体吐出口５１が調整器本体４１の壁面の貫通孔か
ら管３４を介して噴射ノズル２２（図５）に連通してい
ることは図６の研磨材調整器４０と同様であるが、サク
ションパイプ４３ａの他端は調整器本体４１の壁面を通
過して調整器本体４１の外方に臨み、サクションパイプ
４３ａの他端に吸気口４５ａが形成されている。Reference numeral 43a is a suction pipe, and an abrasive material suction port 46 is provided on the wall surface of the suction pipe 43a, and the mixed fluid discharge port 51 at one end is provided from the through hole of the wall surface of the regulator body 41 through the pipe 34 to the injection nozzle 22 ( 5) is similar to the abrasive material adjuster 40 of FIG. 6, but the other end of the suction pipe 43a passes through the wall surface of the adjuster body 41 and faces the outside of the adjuster body 41. An intake port 45a is formed at the other end of the suction pipe 43a.

【００１７】〔図７の研磨材調整器４０の作用〕図５に
おいて圧縮空気が管３７を経て噴射ノズル２２から噴射
され、管３４及びサクションパイプ４３内が負圧になる
と、キャビネット２１内の空気がサクションパイプ４３
ａの吸気口４５ａから吸引され、サクションパイプ４３
ａ内で研磨材吸入口４６から吸入した研磨材２６と前記
空気との混合流体が形成され噴射ノズル２２へ送給され
噴射ノズル２２より噴射される。他は図６と同様であ
る。[Operation of Abrasive Material Adjuster 40 of FIG. 7] In FIG. 5, when compressed air is injected from the injection nozzle 22 through the pipe 37 and the inside of the pipe 34 and the suction pipe 43 becomes negative pressure, the air inside the cabinet 21 Is the suction pipe 43
a is sucked in through the intake port 45a, and the suction pipe 43
A mixed fluid of the abrasive 26 sucked from the abrasive suction port 46 and the air is formed in a, is fed to the jet nozzle 22, and is jetted from the jet nozzle 22. Others are the same as that of FIG.

【００１８】[0018]

【発明が解決しようとする課題】従来の研磨材調整器４
０にあっては、以下に示すような問題点があった。Conventional abrasive material adjuster 4
In 0, there were the following problems.

【００１９】（１）微粉性質を有する研磨材２６はキャ
ビネット２１や管３３の内壁面に付着し、この付着量が
増大すると、本体の振動などによりあるとき突然に下方
へ崩れ落ち、この現象がサイクロン２３への研磨材２６
の供給量に大きな変化を及ぼすためサイクロン２３から
調整器本体４１内へ落下する研磨材２６の量を大きく変
化させる。したがって、調整器本体４１内の研磨材層の
高さＨが大きく変動するので、研磨材２６からサクショ
ンパイプ４３（図６）又はサクションパイプ４３ａ（図
７）内に吸引される研磨材２６、すなわち噴射ノズル２
２の研磨材２６の噴射量が不安定になり、被加工物のブ
ラスト加工状件が一定にならないという問題点があっ
た。(1) The abrasive material 26 having a fine powder property adheres to the inner wall surfaces of the cabinet 21 and the pipe 33, and if the adhered amount increases, it may suddenly collapse downward due to vibration of the main body. This phenomenon occurs in a cyclone. Abrasive 26 to 23
Therefore, the amount of the abrasive 26 that falls from the cyclone 23 into the adjuster body 41 is changed significantly. Therefore, since the height H of the abrasive layer in the adjuster body 41 varies greatly, the abrasive 26 sucked from the abrasive 26 into the suction pipe 43 (FIG. 6) or the suction pipe 43a (FIG. 7), that is, Injection nozzle 2
There was a problem that the injection amount of the abrasive 26 of No. 2 became unstable and the blasting condition of the workpiece was not constant.

【００２０】（２）被加工物に噴射された研磨材２６
は、次第に摩耗して遂には粉塵或いは使用不能な研磨材
２６となってダストコレクタ２４へ集積され、ブラスト
装置内の研磨材２６の全体量が減少する。そこでサイク
ロン２３内に新しい研磨材２６を投入して補充すると、
サイクロン２３内の研磨材２６が急に増大し、このため
調整器本体４１内の研磨材２６の量が増大するので、上
記（１）項と同様の理由で、調整器本体４１内の研磨材
層の高さＨが増大し、ブラスト加工条件が不安定になる
という問題点があった。(2) Abrasive 26 sprayed on the workpiece
Are gradually worn away and eventually become dust or unusable abrasives 26, which are accumulated in the dust collector 24, and the total amount of the abrasives 26 in the blasting device is reduced. Therefore, if a new abrasive 26 is put into the cyclone 23 and replenished,
The abrasive material 26 in the cyclone 23 suddenly increases, which increases the amount of the abrasive material 26 in the adjuster body 41. For the same reason as in (1) above, the abrasive material 26 in the adjuster body 41 increases. There is a problem that the layer height H increases and the blasting condition becomes unstable.

【００２１】（３）サイクロン２３内の研磨材２６は、
図６の点線で示すように、吐出口３５から渦状に下方の
調整器本体４１内へ落下するので、図６に示すようなサ
クションパイプ４３の吸気口４５が調整器本体４１の開
口部４２に臨む研磨材調整器４０においては、吸気口４
５から空気を吸い込むとき、サイクロン２３の吐出口３
５から落下する研磨材２６を吸気口４５より直接吸引し
てしまうので、サクションパイプ４３内の研磨材２６の
量が不安定になり噴射ノズル２２の研磨材２６の噴射量
が不安定になるという問題点があった。(3) The abrasive 26 in the cyclone 23 is
As shown by the dotted line in FIG. 6, since it falls spirally from the discharge port 35 into the lower adjuster body 41, the intake port 45 of the suction pipe 43 as shown in FIG. In the facing abrasive material adjuster 40, the intake port 4
When inhaling air from 5, the discharge port 3 of the cyclone 23
Since the abrasive 26 falling from No. 5 is directly sucked from the intake port 45, the amount of the abrasive 26 in the suction pipe 43 becomes unstable and the injection amount of the abrasive 26 of the injection nozzle 22 becomes unstable. There was a problem.

【００２２】本発明は、叙上の問題点を解決するために
開発されたもので、調整器本体内の下部の空気貯溜室か
ら空気を噴き上げて微粉性質を有する研磨材を流動状態
の研磨材層に形成し、この研磨材層の上面の高さをサイ
クロン又は研磨材タンク内の研磨材の量の変化に影響を
受けることなく一定に保ち、安定した研磨材の噴射量を
噴射ノズルへ吐出する研磨材調整器を提供することを目
的としている。The present invention was developed in order to solve the above-mentioned problems, and the air is blown up from the lower air storage chamber in the main body of the regulator to make the abrasive having a fine powder property a fluid abrasive. Layer, and keep the height of the upper surface of this abrasive layer constant without being affected by changes in the amount of abrasive in the cyclone or abrasive tank, and discharge a stable amount of abrasive to the injection nozzle. It is an object of the present invention to provide an abrasive material adjuster that does.

【００２３】[0023]

【課題を解決するための手段】上記目的を解決するため
に、本発明のブラスト装置における研磨材調整器におい
ては、調整器本体４１の上縁に開口部４２を備え、この
開口部４２にサイクロン２３又は研磨材タンク２８の吐
出口３５の下端縁を臨ませる。そして、前記サイクロン
２３又は研磨材タンク２８内に微粉性質を有し且つ圧縮
空気流で噴き上げ可能な研磨材２６を投入する。また、
前記調整器本体４１の下部に、圧縮空気供給源に連通す
る空気貯溜室４８を通気性を有する多孔体４７を介して
設ける。さらに、前記調整器本体４１の内壁に、噴射ノ
ズルに連通する混合流体吐出口５１と研磨材吸入口４６
と吸気口４５を有するサクションパイプ４３を固定す
る。In order to solve the above-mentioned problems, the abrasive material adjuster in the blasting device of the present invention is provided with an opening 42 at the upper edge of the adjuster body 41, and the opening 42 is provided with a cyclone. 23 or the lower end edge of the discharge port 35 of the abrasive tank 28 is exposed. Then, the abrasive 26 having a fine powder property and capable of being blown up by the compressed air flow is put into the cyclone 23 or the abrasive tank 28. Also,
An air storage chamber 48 communicating with a compressed air supply source is provided below the regulator body 41 via a porous body 47 having air permeability. Further, on the inner wall of the adjuster body 41, the mixed fluid discharge port 51 and the abrasive suction port 46 communicating with the injection nozzle are provided.
And the suction pipe 43 having the intake port 45 is fixed.

【００２４】前記サイクロン２３又は研磨材タンク２８
内の上部の空気の層と調整器本体４１の内部とを連通管
１５又は１７を介して連通し、この連通管１５又は１７
の下端の連通口１６を調整器本体４１内の研磨材所望量
の設定高さＨｓに位置せしめる。The cyclone 23 or the abrasive tank 28
The upper air layer in the inside and the inside of the adjuster body 41 are communicated with each other via the communication pipe 15 or 17, and the communication pipe 15 or 17
The communication port 16 at the lower end of the is positioned at the set height Hs of the desired amount of abrasive in the adjuster body 41.

【００２５】一方、前記サイクロン２３又は研磨材タン
ク２８の吐出口３５に吐出管１１を連結して前記吐出口
３５の下端縁を調整器本体の開口部４２より下方に延長
して吐出管口１２を形成する。この吐出管口１２の下端
縁を連通管１５又は１７の連通口１６と同一の設定高さ
Ｈｓ以下に設けたものである。On the other hand, the discharge pipe 11 is connected to the discharge port 35 of the cyclone 23 or the abrasive tank 28, and the lower end edge of the discharge port 35 is extended below the opening 42 of the regulator main body to discharge the discharge pipe port 12. To form. The lower end edge of the discharge pipe port 12 is provided below the same set height Hs as the communication port 16 of the communication pipe 15 or 17.

【００２６】ちなみに、前述のサイクロン２３の吐出口
の下端に装着した研磨材調整器における研磨材吸入口４
６の位置から調整器本体４１内の研磨材層の上面Ｚまで
の高さをＨとすると、研磨材吸入口４６からサクション
パイプ４３内に吸引される研磨材２６の量、すなわちサ
クションパイプ４３の混合流体吐出口５１より噴射ノズ
ル２２へ吐出される研磨材２６の量は、Ｈの平方根に比
例するので、調整器本体４１内の研磨材層の高さＨはブ
ラスト加工条件を設定する上で非常に重要な要素であ
る。By the way, the abrasive material suction port 4 in the abrasive material adjuster mounted on the lower end of the discharge port of the cyclone 23 described above.
When the height from the position 6 to the upper surface Z of the abrasive layer in the adjuster body 41 is H, the amount of the abrasive 26 sucked into the suction pipe 43 from the abrasive inlet 46, that is, the suction pipe 43 Since the amount of the abrasive material 26 discharged from the mixed fluid discharge port 51 to the injection nozzle 22 is proportional to the square root of H, the height H of the abrasive material layer in the adjuster body 41 is important for setting the blasting conditions. This is a very important factor.

【００２７】これは、以下の実験から立証される。実験例 This is proved by the following experiments. Experimental example

【００２８】[0028]

【表１】 [Table 1]

【００２９】前記高さＨと噴射ノズル２２の研磨材噴射
量との比例関係は、表２及び図４に示す通りである。The proportional relationship between the height H and the amount of the abrasive material sprayed from the spray nozzle 22 is as shown in Table 2 and FIG.

【００３０】[0030]

【表２】 [Table 2]

【００３１】なお、研磨材吸入口４６から吸引される研
磨材２６の量と調整器本体４１内の研磨材層の高さＨと
の上述したような比例関係は、調整器本体４１内の研磨
材２６が空気貯溜室４８の撹拌空気で流動状態になって
いるときに成り立つものであり、調整器本体４１内の研
磨材２６が流動状態にならない一般の重力式のブラスト
装置に使用される研磨材調整器４０では、研磨材吸入口
４６から吸引される研磨材２６の量は高さＨに左右され
ず無関係であり、上述の比例関係は成立しない。The proportional relationship between the amount of the abrasive material 26 sucked from the abrasive material intake port 46 and the height H of the abrasive material layer in the adjuster body 41 is as described above. This is established when the material 26 is in a fluidized state by the agitated air in the air storage chamber 48, and the polishing material 26 in the adjuster body 41 is not in a fluidized state and is used in a general gravity type blasting device. In the material adjuster 40, the amount of the abrasive 26 sucked from the abrasive suction port 46 is irrelevant to the height H and is irrelevant, and the above-described proportional relationship is not established.

【００３２】また、前記連通管１５の下端の連通口１６
を調整器本体４１の側壁より調整器本体内に臨ませ、前
記連通口１６の端縁の頂点を調整器本体４１内の研磨材
所望量の設定高さＨｓに位置せしめることができる。Further, the communication port 16 at the lower end of the communication pipe 15
Can be made to face the inside of the adjuster body from the side wall of the adjuster body 41, and the apex of the end edge of the communication port 16 can be positioned at the set height Hs of the desired amount of abrasive in the adjuster body 41.

【００３３】さらに、前記連通管１７をサイクロン２３
又は研磨材タンク２８の壁面に上下方向に貫通し、この
連通管１７の上端をサイクロン２３又は研磨材タンク２
８内の上部の空気の層に臨ませ、且つ連通管１７の下端
の連通口１６を調整器本体４１内に臨ませ、前記連通口
１６の下端縁を調整器本体４１内の研磨材所望量の設定
高さＨｓに位置せしめることもできる。Further, the communication pipe 17 is connected to the cyclone 23.
Alternatively, the wall surface of the abrasive tank 28 is vertically penetrated, and the upper end of the communication pipe 17 is attached to the cyclone 23 or the abrasive tank 2
8 facing the upper air layer, and the communication port 16 at the lower end of the communication pipe 17 in the adjuster body 41, and the lower end edge of the communication port 16 in the adjuster body 41. It can be located at the set height Hs.

【００３４】また、前記サクションパイプ４３又は４３
ａの吸気口４５又は４５ａを吸気管１３を介してサイク
ロン２３又は研磨材タンク２８内の上部の空気の層内に
臨ませることができる。Further, the suction pipe 43 or 43
The intake port 45 or 45a of a can be exposed to the upper air layer in the cyclone 23 or the abrasive tank 28 via the intake pipe 13.

【００３５】また、前記サクションパイプ４３ａの混合
流体吐出口５１と反対方向の一端に吸気口４５ａを設
け、この吸気口４５を調整器本体４１の外方の外気に臨
ませることもできる。It is also possible to provide an intake port 45a at one end of the suction pipe 43a in the direction opposite to the mixed fluid discharge port 51, and expose the intake port 45 to the outside air outside the regulator body 41.

【００３６】[0036]

【作用】圧縮空気供給源より空気貯溜室４８内へ圧縮空
気を供給すると、この圧縮空気が多孔体４７を介して均
一な状態で調整器本体４１内へ研磨材２６の撹拌空気と
して吹き込まれ、調整器本体４１内の研磨材２６は流動
状態になり、上方に空気層と下方に流動状態の研磨材層
を形成する。When compressed air is supplied from the compressed air supply source into the air storage chamber 48, this compressed air is blown into the adjuster main body 41 as the agitating air of the polishing material 26 in a uniform state through the porous body 47, The abrasive 26 in the adjuster body 41 is in a fluidized state, forming an air layer above and a fluidized abrasive layer below.

【００３７】噴射ノズル２２へ圧縮空気が供給されて噴
射ノズル２２より噴射すると、サクションパイプ４３又
は４３ａ内が負圧になり、図１ではサイクロン２３又は
研磨材タンク２８内の空気が吸気管１３を介してサクシ
ョンパイプ４３内へ吸入され、図２では調整器本体４１
外の外気、例えばキャビネット２１内の空気が研磨材吸
入口４５ａよりサクションパイプ４３ａ内に吸入され
る。研磨材吸入口４６からサクションパイプ４３内へ吸
入される研磨材２６の量は、前述のように、研磨材吸入
口４６から流動状態の研磨材層の上面Ｚまでの高さＨと
比例関係にあり、Ｈの平方根に比例する一定量となる。When compressed air is supplied to the jet nozzle 22 and jetted from the jet nozzle 22, a negative pressure is created in the suction pipe 43 or 43a, and the air in the cyclone 23 or the abrasive tank 28 in FIG. 2 is sucked into the suction pipe 43 via the suction pipe 43, and in FIG.
The outside air, for example, the air in the cabinet 21 is sucked into the suction pipe 43a through the abrasive suction port 45a. As described above, the amount of the abrasive 26 sucked into the suction pipe 43 from the abrasive suction port 46 is proportional to the height H from the abrasive suction port 46 to the upper surface Z of the fluidized abrasive layer. There is a fixed amount proportional to the square root of H.

【００３８】なお、流動状態の研磨材２６内の撹拌空気
の一部は連通管１５又は１７を経てサイクロン２３又は
研磨材タンク２８へ流出するので、サイクロン２３内の
負圧と相俟ち連通管１５又は１７内は常時上昇気流が生
じている。Since part of the agitated air in the abrasive material 26 in a fluidized state flows out to the cyclone 23 or the abrasive material tank 28 through the communication pipe 15 or 17, the communication pipe is combined with the negative pressure in the cyclone 23. An ascending airflow is constantly generated in 15 or 17.

【００３９】一方、調整器本体４１内の研磨材２６は、
流動状態を形成する撹拌空気と共に研磨材吸入口４６か
らサクションパイプ４３内へ吸い込まれ、サクションパ
イプ４３内で研磨材吸入口４５からの空気と混合され混
合流体吐出口５１から管３４を経て噴射ノズル２２より
噴射される。On the other hand, the abrasive material 26 in the adjuster body 41 is
It is sucked into the suction pipe 43 from the abrasive suction port 46 together with the agitated air that forms a fluidized state, mixed with the air from the abrasive suction port 45 in the suction pipe 43, and mixed from the mixed fluid discharge port 51 through the pipe 34 to the injection nozzle. It is injected from 22.

【００４０】また、サイクロン２３又は研磨材タンク２
８内の研磨材２６は吐出管１１の吐出管口１２を通過し
て調整器本体４１内へ落下する。調整器本体４１内の研
磨材層の上面Ｚの位置が連通管１５又は１７の連通口１
６より下方に位置しているとき、調整器本体４１の上部
の空気層の空気は連通口１６から連通管１５又は１７を
経てサイクロン又は研磨材タンク２８内へ吸引され前記
空気層内が負圧になるため、調整器本体４１内の流動状
態の研磨材層の上面Ｚが上昇する。そして、流動状態の
研磨材層の上面Ｚが吐出管１１の吐出管口１２の下端縁
に達すると、吐出管口１２は流動状態の研磨材層の上面
Ｚで塞がれたと同様の状態になり、さらに、流動状態の
研磨材層の上面Ｚが連通管１５又は１７の連通口１６に
達すると、連通口１６が流動状態の研磨材層で閉塞され
るため、調整器本体４１の上部の空気層は密閉された状
態になる。しかも、空気貯溜室４８から噴き上げる撹拌
空気のため調整器本体４１の上部の空気層は正圧になる
ので、研磨材層の上面Ｚは連通管１５又は１７の連通口
１６の設定高さＨｓの位置より上昇しない。Cyclone 23 or abrasive tank 2
The abrasive 26 in 8 passes through the discharge pipe port 12 of the discharge pipe 11 and falls into the adjuster body 41. The position of the upper surface Z of the abrasive layer in the adjuster main body 41 is located at the communication port 1 of the communication pipe 15 or 17.
When located below 6, the air in the air layer above the regulator body 41 is sucked into the cyclone or abrasive tank 28 from the communication port 16 through the communication pipe 15 or 17, and the inside of the air layer is negatively pressurized. Therefore, the upper surface Z of the fluidized abrasive layer in the adjuster body 41 rises. Then, when the upper surface Z of the fluidized abrasive layer reaches the lower end edge of the ejection tube opening 12 of the ejection tube 11, the ejection tube opening 12 is in the same state as when it is blocked by the upper surface Z of the fluidized abrasive layer. Further, when the upper surface Z of the fluidized abrasive layer reaches the communication port 16 of the communication pipe 15 or 17, the communication port 16 is closed by the fluidized abrasive layer, so that the upper part of the regulator body 41 is The air layer becomes sealed. Moreover, since the air layer above the regulator body 41 has a positive pressure due to the stirring air blown out from the air storage chamber 48, the upper surface Z of the abrasive layer has the set height Hs of the communicating port 16 of the communicating pipe 15 or 17. Does not rise above the position.

【００４１】また、前記吐出管１１から余分の研磨材２
６が調整器本体４１に落下しても、流動状態の研磨材層
の上面Ｚ付近の研磨材２６が連通管１５又は１７内の上
昇気流に乗ってサイクロン２３又は研磨材タンク２８内
へ向けて再び流出するので、流動状態の研磨材層内の研
磨材２６の量も安定する。Further, an extra abrasive material 2 is discharged from the discharge pipe 11.
Even if 6 falls into the adjuster body 41, the abrasive material 26 near the upper surface Z of the abrasive material layer in a fluid state rides on the ascending air current in the communication pipe 15 or 17 and enters the cyclone 23 or the abrasive material tank 28. Since it flows out again, the amount of the abrasive 26 in the fluidized abrasive layer is also stabilized.

【００４２】従って、研磨材タンク２８の研磨材２６が
急に崩れて吐出管１１内に多量の研磨材２６が落下し吐
出管１１内に積み重なっても、あるいはサイクロン２３
内の研磨材２６の量が急増しても、調整器本体４１内の
研磨材２６の高さＨは研磨材所望量の設定高さＨｓに維
持されるので、噴射ノズル２２の研磨材噴射量が安定す
る。Therefore, even if the abrasive material 26 in the abrasive material tank 28 suddenly collapses and a large amount of the abrasive material 26 falls into the discharge pipe 11 and is piled up in the discharge pipe 11, or the cyclone 23.
Even if the amount of the abrasive material 26 in the inside of the adjuster body 41 rapidly increases, the height H of the abrasive material 26 in the adjuster body 41 is maintained at the set height Hs of the desired amount of the abrasive material. Is stable.

【００４３】[0043]

【実施例】実施例について図面を参照して説明する。EXAMPLES Examples will be described with reference to the drawings.

【００４４】〔研磨材調整器１０〕図１の研磨材調整器
１０の実施例について、図６の従来の研磨材調整器４０
と同様の部分は省略して説明する。[Abrasive Material Adjuster 10] As to the embodiment of the abrasive material adjuster 10 of FIG. 1, the conventional abrasive material adjuster 40 of FIG.
The description will be omitted by omitting the same portions as.

【００４５】調整器本体４１は、直径１８０mm、高さ２
８５mmの円筒形を成し、上下端縁にそれぞれ、上フラン
ジ５４、下フランジ５５を形成する。調整器本体４１の
上面に開口部４２を形成し、一方、調整器本体４１の下
面の開口を厚さ約１５mmの円盤状の多孔体４７で塞い
で、この多孔体４７の下面の外縁付近を厚さ約８mmのパ
ッキン５７を介して円筒容器状の調整器底板５６の底面
で押さえ、調整器底板５６の上部外周に形成したフラン
ジを調整器本体４１の下フランジ５５に突き合わせてボ
ルトで固定する。従って多孔体４７の下面と調整器底板
５６の底面との間にパッキン５７の厚さ８mmの間隔の空
気貯溜室４８が形成される。The adjuster body 41 has a diameter of 180 mm and a height of 2
It has a cylindrical shape of 85 mm, and an upper flange 54 and a lower flange 55 are formed at the upper and lower edges, respectively. An opening 42 is formed on the upper surface of the adjuster body 41, while the opening on the lower surface of the adjuster body 41 is closed by a disk-shaped porous body 47 having a thickness of about 15 mm, and the vicinity of the outer edge of the lower surface of the porous body 47 is closed. It is pressed by the bottom surface of the adjuster bottom plate 56 in the shape of a cylindrical container through a packing 57 having a thickness of about 8 mm, and the flange formed on the outer periphery of the upper part of the adjuster bottom plate 56 is butted against the lower flange 55 of the adjuster main body 41 and fixed with bolts. . Therefore, an air storage chamber 48 is formed between the lower surface of the porous body 47 and the bottom surface of the adjuster bottom plate 56 with the packing 57 having a thickness of 8 mm.

【００４６】調整器底板５６は底面に前記空気貯溜室４
８に連通する空気導入管４９を設け、空気導入管４９は
管３２を介して図示せざる圧縮空気供給源に連通する。
なお、パッキン５８は多孔体４７の上面外縁と調整器本
体４１の下フランジ５５の下面との間に装着されてい
る。The bottom plate of the regulator 56 is provided on the bottom surface of the air storage chamber 4.
8 is provided with an air introducing pipe 49, and the air introducing pipe 49 communicates with a compressed air supply source (not shown) through the pipe 32.
The packing 58 is mounted between the outer edge of the upper surface of the porous body 47 and the lower surface of the lower flange 55 of the adjuster body 41.

【００４７】一方、研磨材タンク２８の下端にはフラン
ジ３６が形成され、このフランジ３６面に臨む吐出口３
５に、該吐出口３５の大きさと同じかそれ以上の内径を
有する吐出管１１を溶接で連結し、前記吐出口３５を下
方に延長し、従って吐出管１１の下端に吐出管口１２を
形成する。On the other hand, a flange 36 is formed at the lower end of the abrasive tank 28, and the discharge port 3 facing the surface of the flange 36 is formed.
5, a discharge pipe 11 having an inner diameter equal to or larger than the size of the discharge port 35 is connected by welding, and the discharge port 35 is extended downward, so that the discharge pipe port 12 is formed at the lower end of the discharge pipe 11. To do.

【００４８】そして、前記調整器本体４１の上フランジ
５４を研磨材タンク２８のフランジ３６面に突き合わせ
てボルトで固定し、調整器本体４１の開口部４２内に研
磨材タンク２８の吐出管１１を挿入する。この場合、サ
クションパイプ４３の研磨材吸入口４６から調整器本体
４１内の研磨材層の上面Ｚまでの距離を高さＨで表し、
研磨材調整器１０の調整器本体４１内の研磨材所望量の
高さを設定高さＨｓで表すと、吐出管１１の吐出管口１
２の下端縁は設定高さＨｓの位置になるよう、予め設定
している。Then, the upper flange 54 of the adjuster main body 41 is butted against the surface of the flange 36 of the abrasive material tank 28 and fixed with a bolt, and the discharge pipe 11 of the abrasive material tank 28 is inserted into the opening 42 of the adjuster main body 41. insert. In this case, the distance from the abrasive inlet 46 of the suction pipe 43 to the upper surface Z of the abrasive layer in the adjuster body 41 is represented by a height H,
When the desired amount of abrasive in the adjuster body 41 of the abrasive adjuster 10 is represented by the set height Hs, the discharge pipe opening 1 of the discharge pipe 11 is
The lower edge of 2 is preset so as to be at the position of the set height Hs.

【００４９】なお、サクションパイプ４３内に吸入され
る研磨材２６の量、すなわちサクションパイプ４３の混
合流体吐出口５１から噴射ノズル２２へ吐出され、噴射
ノズル２２から噴射される研磨材噴射量はＨの平方根に
比例する。（高さＨとサクションパイプ４３内への研磨
材２６の吸入量との比例関係については、実施例の作用
の説明で詳しく述べる。） １３は吸気管で、吸気管１３の一端を研磨材タンク２８
の外壁面の上部に設けた貫通孔を介して研磨材タンク２
８内の上部の空気の層に連通し、吸気管１３の他端側を
調整器本体４１の外壁面から内部へ挿通して吸気管１３
の他端を補助パイプ４４の上端の吸気口４５に連通す
る。The amount of the abrasive 26 sucked into the suction pipe 43, that is, the amount of abrasive sprayed from the mixed fluid discharge port 51 of the suction pipe 43 to the jet nozzle 22 and jetted from the jet nozzle 22 is H. Proportional to the square root of. (The proportional relationship between the height H and the suction amount of the abrasive 26 into the suction pipe 43 will be described in detail in the description of the operation of the embodiment.) 13 is an intake pipe, and one end of the intake pipe 13 is an abrasive tank. 28
Of the abrasive material tank 2 through a through hole provided in the upper part of the outer wall surface of the
8 communicates with the upper air layer, and the other end of the intake pipe 13 is inserted from the outer wall surface of the adjuster body 41 into the inside thereof.
The other end of is connected to the intake port 45 at the upper end of the auxiliary pipe 44.

【００５０】１５は連通管で、その一端を研磨材タンク
２８の外壁面の上部に設けた貫通孔を介して研磨材タン
ク２８内の上部の空気の層に連通し、他端を調整器本体
４１の外壁面に設けた連通口１６を介して調整器本体４
１の内部に連通し、連通口１６の端縁の頂点の位置を研
磨材調整器１０の研磨材所望量の設定高さＨｓと同位置
に設けている。したがって、連通口１６の端縁の頂点は
吐出管１１の吐出管口１２の下端縁と水平方向で同位置
である。Reference numeral 15 is a communication pipe, one end of which is connected to an upper air layer in the abrasive tank 28 through a through hole provided in the upper portion of the outer wall of the abrasive tank 28, and the other end of which is the adjuster body. 41 through the communication port 16 provided on the outer wall surface of the adjuster body 4
1, and the position of the apex of the edge of the communication port 16 is provided at the same position as the set height Hs of the desired amount of abrasive of the abrasive adjuster 10. Therefore, the apex of the end edge of the communication port 16 is at the same position in the horizontal direction as the lower end edge of the discharge pipe port 12 of the discharge pipe 11.

【００５１】５３は研磨材吸入管で、ラッパ管状を成
し、このラッパ管を下向きに拡がる方向に向けてサクシ
ョンパイプ４３の壁面に設け、研磨材吸入口４６を介し
てサクションパイプ４３の内部に連通する。なお、本実
施例では研磨材吸入口４６の孔径は３mmである。Reference numeral 53 is an abrasive suction pipe, which is in the shape of a trumpet tube. The trumpet pipe is provided on the wall surface of the suction pipe 43 in the direction of expanding downward, and is introduced into the suction pipe 43 through the abrasive suction port 46. Communicate. In this embodiment, the diameter of the abrasive material suction port 46 is 3 mm.

【００５２】なお、研磨材２６は、微粉性質を示すもの
であり、本明細書において、微粉性質とは、研磨材タン
ク２８内の底部に集積した研磨材２６の安息角θが一定
にならないほどの微粉状態を示す性質をいう。この微粉
性質をさらに詳しく説明するために微粉性質を示さない
研磨材２６と通常の研磨材調整器について以下に説明す
る。The abrasive 26 has a fine powder property, and in the present specification, the fine powder property means that the repose angle θ of the abrasive 26 accumulated at the bottom of the abrasive tank 28 is not constant. Refers to the property of indicating a fine powder state. In order to explain this fine powder property in more detail, the abrasive 26 which does not exhibit the fine powder property and a normal abrasive adjuster will be described below.

【００５３】微粉性質を示さない一般の研磨材２６に
は、通常、図８に示すような研磨材調整器６０を用い
る。この研磨材調整器６０は本願の研磨材調整器１０の
ように調整器本体６１内へ撹拌空気を噴射しない。For the general abrasive 26 which does not show the property of fine powder, an abrasive adjuster 60 as shown in FIG. 8 is usually used. The abrasive material adjuster 60 does not inject agitation air into the adjuster body 61 unlike the abrasive material adjuster 10 of the present application.

【００５４】微粉性質を示さない一般的な研磨材２６
は、サクションパイプ６２に設けた吐出口６３からサク
ションパイプ６２内へ一定の速度で落下するにつれて、
研磨材タンク２８内の研磨材２６に図８に二点鎖線に示
すようなすり鉢状の穴ができ、このすり鉢状の穴は次第
に拡がっていく。一方、吐出口６３から落下した研磨材
２６はサクションパイプ６２内へ円錐体を成すように積
み上げられ、この円錐体の研磨材２６はサクションパイ
プ６２内を流れる空気流により噴射ノズルへ向けて吸引
される。このように微粉性質を示さない研磨材２６は前
記すり鉢状の穴と円錐体の傾斜角がほぼ一定の角度を成
し、この傾斜角を安息角θという。General abrasive 26 which does not exhibit fine powder properties
Is dropped from the discharge port 63 provided in the suction pipe 62 into the suction pipe 62 at a constant speed,
The abrasive 26 in the abrasive tank 28 has a mortar-shaped hole as shown by the chain double-dashed line in FIG. 8, and the mortar-shaped hole gradually expands. On the other hand, the abrasive material 26 dropped from the discharge port 63 is piled up in the suction pipe 62 so as to form a conical body, and the abrasive material 26 in the conical body is sucked toward the injection nozzle by the air flow flowing in the suction pipe 62. It As described above, in the polishing material 26 that does not exhibit the fine powder property, the mortar-shaped hole and the cone form a substantially constant inclination angle, and this inclination angle is referred to as a repose angle θ.

【００５５】しかし、微粉性質を示す研磨材２６は、通
常の研磨材調整器６０を用いると、微粉特有の相互の付
着力のために互いに吸着したり研磨材タンク２８の壁面
に付着するなどして安息角θが一定にならず、図９に示
すように研磨材タンク２８内の研磨材２６は吐出口６３
の直上方に穴が開いた状態になり、あるいは図１０に示
すように吐出口６３の上部に空洞６４を形成して研磨材
２６が落下しなくなることがある。However, when the ordinary abrasive adjuster 60 is used, the abrasives 26 exhibiting the property of fine powder are adsorbed to each other or adhere to the wall surface of the abrasive tank 28 due to the mutual adhesive force peculiar to the fine powder. Therefore, the angle of repose θ is not constant, and the abrasive 26 in the abrasive tank 28 is discharged from the discharge port 63 as shown in FIG.
There may be a case where a hole is opened immediately above, or a cavity 64 is formed in the upper portion of the discharge port 63 as shown in FIG.

【００５６】なお、研磨材２６が微粉性質を示す要因
は、研磨材２６の比重と粒径、及びタンク内の圧力に関
係するものと考えられる。すなわち、研磨材２６が微粉
性質を示すかどうかは、研磨材材質と研磨材粒径、及び
研磨材タンク２８内の圧力によって異なるのである。以
下に、タンク内の圧力が常圧のときの微粉性質を有する
研磨材２６の一例を示す。 （１）アランダム系の研磨材材質で、みかけ比重が２〜
３、研磨材粒径が約＃２４０以下の場合。It is considered that the factors showing the fine powder property of the abrasive 26 are related to the specific gravity and particle size of the abrasive 26 and the pressure in the tank. That is, whether or not the abrasive 26 has a fine powder property depends on the material of the abrasive, the particle size of the abrasive, and the pressure in the abrasive tank 28. Below, an example of the abrasive 26 having a fine powder property when the pressure in the tank is atmospheric pressure is shown. (1) An alundum type abrasive material with an apparent specific gravity of 2
3. When the abrasive particle size is about # 240 or less.

【００５７】（２）研磨材材質がスチールビーズで、み
かけ比重が４、研磨材粒径が約＃６００以下の場合。(2) When the abrasive material is steel beads, the apparent specific gravity is 4, and the abrasive particle size is about # 600 or less.

【００５８】しかし、研磨材タンク内の圧力が常圧以上
になると、微粉性質を示す研磨材２６の比重と粒径は変
化する。例えば、研磨材タンク内の圧力が５kg/cm2のと
き、アランダム系の研磨材材質では、研磨材粒径が＃１
５０でも微粉性質を示すが、スチールビーズの研磨材材
質では、研磨材粒径が＃３００で微粉性質を示さない。However, when the pressure in the abrasive tank exceeds the normal pressure, the specific gravity and particle size of the abrasive 26 exhibiting a fine powder property change. For example, when the pressure in the abrasive tank is 5 kg / cm 2 , the abrasive particle size is # 1 for alundum abrasive materials.
50 shows fine powder property, but the abrasive material of steel beads does not show fine powder property with abrasive particle size of # 300.

【００５９】なお、以上の研磨材調整器１０を装着した
ブラスト装置におけるブラスト加工条件を以下の表３に
示す。Table 3 below shows the blasting conditions in the blasting apparatus equipped with the above-described abrasive material adjuster 10.

【００６０】[0060]

【表３】 [Table 3]

【００６１】〔図１の研磨材調整器１０の作用〕以下、
特に研磨材調整器１０内の空気及び研磨材の流れについ
て説明する。[Operation of Abrasive Conditioner 10 of FIG. 1]
In particular, the flow of air and the abrasive in the abrasive adjuster 10 will be described.

【００６２】（空気及び研磨材の流れ） (1)図示せざる圧縮空気供給源より６kg/cm2の圧縮空気
が管３２を介して空気導入管４９から空気貯溜室４８内
へ供給される。(Flow of Air and Abrasive Material) (1) Compressed air of 6 kg / cm 2 is supplied from an unillustrated compressed air supply source through the pipe 32 into the air storage chamber 48 from the air introduction pipe 49.

【００６３】(2)空気貯溜室４８の圧縮空気は多孔体４
７より均一な状態で調整器本体４１内へ研磨材２６の撹
拌空気として噴き込まれる。(2) The compressed air in the air storage chamber 48 is the porous body 4
7 is blown into the adjuster body 41 in a more uniform state as agitating air for the abrasive 26.

【００６４】なお、調整器本体４１内へ噴き込まれる撹
拌空気の圧力は、多孔体４７を通過できる程度、例えば
０．５kg/cm2のような低圧でもよいが、多孔体４７の目
づまりを避けるために４〜６kg/cm2の圧力が好ましい。
本実施例では６kg/cm2である。The pressure of the stirring air blown into the regulator body 41 may be a low pressure such that it can pass through the porous body 47, for example, 0.5 kg / cm 2 , but the clogging of the porous body 47 is avoided. Therefore, a pressure of 4 to 6 kg / cm 2 is preferable.
In this embodiment, it is 6 kg / cm 2 .

【００６５】(3)今、吐出管口１２から研磨材２６が落
下して前記撹拌空気により調整器本体４１内の研磨材２
６が噴き上げられ流動状態になる。しかし、研磨材２６
は調整器本体４１内全体に流動状態になるのではなく、
図１に示すように調整器本体４１の上部に空気の層（空
気層）が形成され、下部に流動状態の研磨材２６の層
（研磨材層）が形成される。(3) Now, the abrasive material 26 drops from the discharge pipe port 12 and the agitated air causes the abrasive material 2 in the adjuster body 41 to be removed.
6 is blown up and becomes a fluid state. However, the abrasive 26
Does not flow into the entire regulator body 41,
As shown in FIG. 1, an air layer (air layer) is formed on the upper portion of the adjuster body 41, and a layer of the abrasive material 26 in a fluid state (abrasive material layer) is formed on the lower portion.

【００６６】なお、空気貯溜室４８から吹き込まれた撹
拌空気は流動状態の研磨材層内と調整器本体４１の上部
の空気層内に常に流動しており、流動状態の研磨材層内
の空気は、一部は研磨材２６と共に研磨材吸入口４６か
らサクションパイプ４３内へ流入し、残りは連通管１５
を経て研磨材タンク２８内へ流入する。さらに、サイク
ロン２３および研磨材タンク２８内が負圧であるので、
調整器本体４１内の空気は連通管１５を経て研磨材タン
ク２８へ流れる気流が生じている。The agitated air blown from the air storage chamber 48 is constantly flowing in the fluidized abrasive layer and the air layer above the adjuster body 41, and the air in the fluidized abrasive layer is constantly flowing. Partially flows into the suction pipe 43 through the abrasive suction port 46 together with the abrasive 26, and the rest flows into the communication pipe 15.
And then flows into the abrasive tank 28. Further, since the cyclone 23 and the abrasive tank 28 are under negative pressure,
The air in the adjuster body 41 is generated as an airflow that flows to the abrasive tank 28 via the communication pipe 15.

【００６７】(4)研磨材タンク２８の研磨材２６が引き
続き吐出管１１を経て調整器本体４１内へ落下する。さ
らに調整器本体４１内の上部に滞留していた空気層の空
気は連通管１５を経て研磨材タンク２８へ吸引されるた
め前記空気層内は負圧になり、流動状態の研磨材層の上
面Ｚの高さＨが図中調整器本体４１内の二点鎖線で示す
位置（Ｈ）から上昇する。そして、流動状態の研磨材層
の上面Ｚが吐出管１１の吐出管口１２の下端縁及び連通
管１５の連通口１６の端縁の頂点の位置つまり設定高さ
Ｈｓに達すると、吐出管口１２及び連通管１５が流動状
態の研磨材層で閉塞された状態になり調整器本体４１内
の上部の空気層の空気は逃げ場がなくなりかつ空気貯溜
室４８から噴き上げる撹拌空気により正圧になるため調
整器本体４１の上部すなわち、吐出管口１２の下端縁よ
り上方に空気溜りが形成された状態と同様になる。ま
た、吐出管１１内は流動状態の研磨材層の上面Ｚで閉塞
された状態になり、調整器本体４１の上部の空気溜りの
空気が吐出管１１を経て研磨材タンク２８内へ流入する
ことはない。(4) The abrasive 26 in the abrasive tank 28 continues to drop into the adjuster body 41 through the discharge pipe 11. Further, the air in the air layer staying in the upper part of the adjuster body 41 is sucked into the abrasive tank 28 through the communication pipe 15, so that the inside of the air layer becomes a negative pressure, and the upper surface of the abrasive layer in the fluidized state. The height H of Z rises from the position (H) shown by the chain double-dashed line in the regulator body 41 in the figure. When the upper surface Z of the fluidized abrasive layer reaches the lower end edge of the discharge pipe port 12 of the discharge pipe 11 and the apex of the end edge of the communication port 16 of the communication pipe 15, that is, the set height Hs, 12 and the communication pipe 15 are closed by the fluidized abrasive layer, and the air in the upper air layer in the adjuster body 41 has no escape and becomes a positive pressure by the agitated air spouting from the air storage chamber 48. This is the same as the state in which the air reservoir is formed above the adjuster body 41, that is, above the lower end edge of the discharge pipe port 12. In addition, the inside of the discharge pipe 11 is closed by the upper surface Z of the fluidized abrasive layer, and the air in the air pool above the regulator body 41 flows into the abrasive tank 28 through the discharge pipe 11. There is no.

【００６８】(5)一方、前述の従来技術の項において図
５のブラスト装置で説明したように、コンプレッサなど
の圧縮空気供給源から供給された５kg/cm2の圧縮空気
が、噴射ノズル２２より噴射されると、この噴射ノズル
２２に連通する管３４及びサクションパイプ４３内が負
圧になり、研磨材タンク２８の上部の空気が吸気管１３
を経て補助パイプ４４の吸気口４５からサクションパイ
プ４３内へ吸入され研磨材吸入口４６の位置を通過し混
合流体吐出口５１へ流れる。(5) On the other hand, as explained in the blasting device of FIG. 5 in the above-mentioned prior art, the compressed air of 5 kg / cm 2 supplied from the compressed air supply source such as the compressor is supplied from the injection nozzle 22. When jetted, the inside of the pipe 34 and the suction pipe 43 communicating with the jet nozzle 22 becomes negative pressure, and the air above the abrasive tank 28 sucks the suction pipe 13.
Through the suction port 45 of the auxiliary pipe 44, is sucked into the suction pipe 43, passes through the position of the abrasive suction port 46, and flows to the mixed fluid discharge port 51.

【００６９】(6)また、サクションパイプ４３内は負圧
になるので、調整器本体４１内の研磨材２６は研磨材層
内の空気と共に研磨材吸入管５３から研磨材吸入口４６
を経てサクションパイプ４３内へ吸入される。(6) Further, since the suction pipe 43 has a negative pressure, the polishing material 26 in the adjuster body 41 is moved from the polishing material suction pipe 53 to the polishing material suction port 46 together with the air in the polishing material layer.
Through the suction pipe 43.

【００７０】但し、研磨材吸入口４６からサクションパ
イプ４３へ流入する研磨材２６の量は、研磨材吸入口４
６の孔径がφ３と小さく形成されているので大量の研磨
材２６が急速にサクションパイプ４３内に吸入されるこ
とはなく、むしろ、研磨材２６が流動状態であるので、
いわば液体と同様の性質を有することになり、表２の実
験例に示すように、混合流体吐出口５１から研磨材層の
上面Ｚまでの高さＨが調整器本体４１内の研磨材２６を
押し出す圧力となり、結果としてＨの平方根に比例した
研磨材２６の一定量が研磨材吸入口４６からサクション
パイプ４３内へ流入することになる。However, the amount of the abrasive material 26 flowing into the suction pipe 43 from the abrasive material intake port 46 depends on the amount of the abrasive material intake port 4
Since the hole diameter of 6 is as small as φ3, a large amount of the abrasive 26 is not rapidly sucked into the suction pipe 43, but rather the abrasive 26 is in a fluid state.
In other words, it has a property similar to that of a liquid, and as shown in the experimental example of Table 2, the height H from the mixed fluid discharge port 51 to the upper surface Z of the abrasive layer causes the abrasive 26 in the adjuster body 41 to move. The pressure is pushed out, and as a result, a certain amount of the abrasive 26 proportional to the square root of H flows into the suction pipe 43 from the abrasive inlet 46.

【００７１】(7)サクションパイプ４３内で空気と研磨
材２６の混合流体が形成され、この混合流体が混合流体
吐出口５１を経て管３４を介して噴射ノズル２２から噴
射される。(7) A mixed fluid of air and the abrasive 26 is formed in the suction pipe 43, and the mixed fluid is jetted from the jet nozzle 22 through the mixed fluid discharge port 51 and the pipe 34.

【００７２】(8)調整器本体４１内の研磨材２６が減少
すると、高さＨが降下し連通管１５内が開放された状態
となる。しかし、研磨材タンク２８の研磨材２６が吐出
管１１を経て調整器本体４１内へ落下するので前記高さ
Ｈが再び上昇し、調整器本体４１内の上部の空気層の空
気は連通管１５を経て研磨材タンク２８へ流入する。そ
して、流動状態の研磨材層の上面Ｚが吐出管１１の吐出
管口１２の下端縁及び連通管１５の連通口１６の端縁の
頂点の位置つまり設定高さＨｓに達すると、吐出管口１
２及び連通管１５が流動状態の研磨材層で閉塞された状
態になり調整器本体４１内の上部の空気層の空気は逃げ
場がなくなり調整器本体４１内に空気溜りの状態となる
ため、流動状態の研磨材層の上面Ｚは上昇しない。(8) When the amount of the abrasive 26 in the adjuster main body 41 is reduced, the height H is lowered and the inside of the communication pipe 15 is opened. However, since the polishing material 26 of the polishing material tank 28 drops into the adjuster body 41 via the discharge pipe 11, the height H rises again, and the air in the upper air layer in the adjuster body 41 causes the communication pipe 15 to flow. And then flows into the abrasive tank 28. When the upper surface Z of the fluidized abrasive layer reaches the lower end edge of the discharge pipe port 12 of the discharge pipe 11 and the apex of the end edge of the communication port 16 of the communication pipe 15, that is, the set height Hs, 1
2 and the communication pipe 15 are blocked by the flowable abrasive layer, and the air in the upper air layer in the regulator body 41 has no escape and becomes an air trap in the regulator body 41. The upper surface Z of the abrasive layer in this state does not rise.

【００７３】なお、実際には、調整器本体４１内の研磨
材２６が減少しても、研磨材タンク２８内の研磨材２６
は吐出管１１から調整器本体４１内へ常に落下している
ので高さＨが急激に降下することはなく、むしろ、調整
器本体４１内の流動状態の研磨材層の上面Ｚが上昇しよ
うとする。しかし、調整器本体４１の上部の空気溜りの
ために上昇できず、流動状態の研磨材層の上面Ｚ付近の
研磨材２６は連通管１５内の気流に乗って上昇し、余分
の研磨材２６が研磨材タンク２８へ流入する。つまり、
吐出管１１から調整器本体４１内へ落下した余分の研磨
材２６は、連通管１５から再び研磨材タンク２８へ流入
し、調整器本体４１内の流動状態の研磨材層の上面Ｚ
は、設定高さＨｓより上昇せず、上記の動作を繰り返し
て設定高さＨｓ付近に位置する。In reality, even if the amount of the abrasive 26 in the adjuster main body 41 decreases, the abrasive 26 in the abrasive tank 28 will decrease.
Is constantly falling from the discharge pipe 11 into the adjuster body 41, the height H does not drop sharply, but rather, the upper surface Z of the fluidized abrasive layer in the adjuster body 41 tries to rise. To do. However, it cannot be lifted due to the air pool in the upper part of the adjuster body 41, and the polishing material 26 near the upper surface Z of the flowable polishing material layer rises along with the air flow in the communication pipe 15 and the excess polishing material 26 Flow into the abrasive tank 28. That is,
The excess abrasive 26 dropped from the discharge pipe 11 into the adjuster body 41 flows into the abrasive tank 28 again from the communication pipe 15, and the upper surface Z of the flowable abrasive layer in the adjuster body 41
Does not rise above the set height Hs and is positioned near the set height Hs by repeating the above operation.

【００７４】なお、本願の研磨材調整器１０が図５に示
すような重力式ブラスト装置のサイクロン２３の下端に
設けられた場合、たとえキャビネット２１内に付着した
研磨材２６が崩れ落ちてサイクロン２３内の研磨材２６
の量に急激な変化をもたらす事態が生じたとしても、上
記の理由で、本願の研磨材調整器１０は調整器本体４１
内の流動状態の研磨材層の上面Ｚが設定高さＨｓからほ
とんど変化しない。If the abrasive material adjuster 10 of the present application is provided at the lower end of the cyclone 23 of the gravity type blasting device as shown in FIG. 5, even if the abrasive material 26 adhered to the inside of the cabinet 21 collapses and falls inside the cyclone 23, Abrasive material 26
Even if a situation that causes a sudden change in the amount of
The upper surface Z of the fluidized abrasive layer in the inside hardly changes from the set height Hs.

【００７５】〔図２の研磨材調整器１０の実施例〕図１
と同様の部分は省略して、図２を参照して説明する。[Example of Abrasive Conditioner 10 of FIG. 2] FIG. 1
A description of the same parts as in FIG.

【００７６】サクションパイプ４３ａは、図１の補助パ
イプ４４を形成しておらず、図７と同様にサクションパ
イプ４３ａの他端に吸気口４５ａを形成し、吸気口４５
ａが調整器本体４１の壁面を通過して調整器本体４１の
外方に臨んでいる。The suction pipe 43a does not form the auxiliary pipe 44 of FIG. 1, but an intake port 45a is formed at the other end of the suction pipe 43a as in FIG.
a passes through the wall surface of the adjuster body 41 and faces the outside of the adjuster body 41.

【００７７】〔図２の研磨材調整器１０の作用〕空気及
び研磨材の流れは、ほとんど図１の実施例と同様であ
り、以下、各動作項目番号に対応し、異なる部分だけを
記載する。[Operation of Abrasive Material Adjuster 10 of FIG. 2] The flow of air and the abrasive material is almost the same as that of the embodiment of FIG. 1, and hereinafter, only different parts will be described corresponding to respective operation item numbers. .

【００７８】（空気及び研磨材の流れ）(1)〜(4)は、図
１の実施例と同様。(Flow of air and abrasive) (1) to (4) are the same as those in the embodiment of FIG.

【００７９】(5)コンプレッサなどの圧縮空気供給源か
ら供給された５kg/cm2の圧縮空気が、噴射ノズル２２よ
り噴射されると、この噴射ノズル２２に連通する管３４
及びサクションパイプ４３ａ内が負圧になり、調整器本
体４１の外方の空気が吸気口４５ａからサクションパイ
プ４３ａ内へ吸入され研磨材吸入口４６の位置を通過し
混合流体吐出口５１へ流れる。(5) When 5 kg / cm 2 of compressed air supplied from a compressed air supply source such as a compressor is jetted from the jet nozzle 22, a pipe 34 communicating with the jet nozzle 22 is provided.
Also, the inside of the suction pipe 43a becomes negative pressure, and the air outside the regulator body 41 is sucked into the suction pipe 43a from the suction port 45a, passes through the position of the abrasive suction port 46, and flows to the mixed fluid discharge port 51.

【００８０】(6)、(7)、(8)は、図１の実施例と同様。(6), (7) and (8) are the same as in the embodiment of FIG.

【００８１】〔図３の研磨材調整器１０の実施例〕図１
及び図２と同様の部分は省略して、図３を参照して説明
する。[Example of Abrasive Conditioner 10 of FIG. 3] FIG.
Also, description will be made with reference to FIG. 3, omitting the same parts as in FIG.

【００８２】サクションパイプ４３ａは、図１の補助パ
イプ４４を形成しておらず、図７と同様にサクションパ
イプ４３ａの他端に吸気口４５ａを形成し、吸気口４５
ａが調整器本体４１の壁面を通過して調整器本体４１の
外方に臨んでいるが、この吸気口４５ａは吸気管１４を
介して研磨材タンク２８内の上部の空気の層に連通す
る。The suction pipe 43a does not form the auxiliary pipe 44 of FIG. 1, but an intake port 45a is formed at the other end of the suction pipe 43a as in FIG.
Although a passes through the wall surface of the adjuster body 41 and faces the outside of the adjuster body 41, the intake port 45a communicates with the upper air layer in the abrasive tank 28 via the intake pipe 14. .

【００８３】１７は連通管で、研磨材タンク２８の壁面
及びフランジ３６を上下方向に貫通し、その上端が研磨
材タンク２８内の上部の空気の層に臨み、下端の連通口
１６は調整器本体４１の開口部４２を通過して調整器本
体４１内に臨んでおり、連通管１７の連通口１６の下端
縁は研磨材調整器１０の研磨材所望量の設定高さＨｓと
同位置に設けられ、吐出管１１の吐出管口１２の下端縁
と水平方向で同位置である。Reference numeral 17 denotes a communication pipe, which penetrates the wall surface of the abrasive tank 28 and the flange 36 in the vertical direction, the upper end thereof faces the upper air layer in the abrasive tank 28, and the communication port 16 at the lower end is a regulator. It passes through the opening 42 of the main body 41 and faces the inside of the adjuster main body 41, and the lower end edge of the communication port 16 of the communication pipe 17 is at the same position as the set height Hs of the desired amount of the abrasive of the abrasive adjuster 10. It is provided at the same position in the horizontal direction as the lower end edge of the discharge pipe port 12 of the discharge pipe 11.

【００８４】なお、連通管１７は、図３において上端側
が空気の流れを考慮して若干折曲げ形成されているが、
折曲げ形成しなくてもよく限定されない。The upper end of the communication pipe 17 is slightly bent in consideration of the air flow in FIG.
It does not need to be bent and is not limited.

【００８５】〔図３の研磨材調整器１０の作用〕空気及
び研磨材の流れは、ほとんど図１及び図２の実施例と同
様であり、以下、各動作項目番号に対応し、異なる部分
だけを記載する。[Operation of Abrasive Material Adjuster 10 in FIG. 3] The flow of air and the abrasive material is almost the same as in the embodiment of FIGS. 1 and 2, and hereinafter, only different portions corresponding to respective operation item numbers are shown. Enter.

【００８６】（空気及び研磨材の流れ）(1)、(2)は、図
１の実施例と同様。(Flow of Air and Abrasive Material) (1) and (2) are the same as in the embodiment of FIG.

【００８７】(3)流動状態の研磨材層内の空気は、一部
は研磨材２６と共に研磨材吸入口４６からサクションパ
イプ４３ａ内へ流入し、他は連通管１７を介して研磨材
タンク２８内へ流入する。他は図１の実施例と同様。(3) Part of the air in the fluidized abrasive layer flows into the suction pipe 43a from the abrasive inlet 46 together with the abrasive 26, and the other flows through the communication pipe 17 into the abrasive tank 28. Flows in. Others are the same as the embodiment of FIG.

【００８８】(4)研磨材タンク２８の研磨材２６が吐出
管１１を経て調整器本体４１内へ落下し流動状態の研磨
材層の上面Ｚの高さＨが上昇するにつれて、調整器本体
４１内の上部の空気層の空気が連通管１７を経て研磨材
タンク２８へ流入し、流動状態の研磨材層の上面Ｚが吐
出管口１２の下端縁及び連通管１７の下端縁の位置つま
り設定高さＨｓに達すると、この位置から上方の調整器
本体４１内の空気は図１の実施例と同様、空気溜りの状
態となる。他は図１の実施例と同様。(4) As the abrasive 26 in the abrasive tank 28 falls into the adjuster body 41 via the discharge pipe 11 and the height H of the upper surface Z of the abrasive material layer in a fluidized state rises, the adjuster body 41 The air in the upper air layer inside flows into the abrasive tank 28 through the communication pipe 17, and the upper surface Z of the abrasive layer in the fluid state is located at the lower end edge of the discharge pipe port 12 and the lower end edge of the communication pipe 17, that is, the setting. When the height Hs is reached, the air in the adjuster body 41 above this position is in the state of an air pool, as in the embodiment of FIG. Others are the same as the embodiment of FIG.

【００８９】(5)コンプレッサなどの圧縮空気供給源か
ら供給された５kg/cm2の圧縮空気が、噴射ノズル２２よ
り噴射されると、この噴射ノズル２２に連通する管３４
及びサクションパイプ４３ａ内が負圧になり、研磨材タ
ンク２８の上部の空気が吸気管１４を経て吸気口４５ａ
からサクションパイプ４３ａ内へ吸入される。(5) When 5 kg / cm 2 of compressed air supplied from a compressed air supply source such as a compressor is jetted from the jet nozzle 22, a pipe 34 communicating with the jet nozzle 22 is provided.
And the inside of the suction pipe 43a becomes a negative pressure, and the air above the abrasive tank 28 passes through the intake pipe 14 and the intake port 45a.
Is sucked into the suction pipe 43a.

【００９０】(6)、(7)は、図１の実施例と同様。(6) and (7) are the same as in the embodiment of FIG.

【００９１】(8)調整器本体４１内の研磨材２６が減少
すると、高さＨが降下するが、研磨材タンク２８の研磨
材２６が吐出管１１を経て調整器本体４１内へ落下す
る。と同時に、調整器本体４１内の上部の空気層の空気
は連通管１５を経て研磨材タンク２８へ吸い込まれ前記
空気層内が負圧になるので、流動状態の研磨材層の上面
Ｚが上昇して吐出管１１及び連通管１７の下端縁の位置
つまり設定高さＨｓに達し、吐出管口１２及び連通管１
５が流動状態の研磨材層の上面Ｚで閉塞され調整器本体
４１内の上部の空気は空気溜りの状態となるため、流動
状態の研磨材層の上面Ｚは上昇しない。(8) When the abrasive 26 in the adjuster body 41 decreases, the height H drops, but the abrasive 26 in the abrasive tank 28 drops into the adjuster body 41 through the discharge pipe 11. At the same time, the air in the upper air layer in the adjuster body 41 is sucked into the abrasive tank 28 via the communication pipe 15 and the inside of the air layer becomes a negative pressure, so that the upper surface Z of the abrasive layer in a fluid state rises. Then, the positions of the lower end edges of the discharge pipe 11 and the communication pipe 17, that is, the set height Hs are reached, and the discharge pipe port 12 and the communication pipe 1 are reached.
5 is closed by the upper surface Z of the fluidized abrasive layer, and the air in the upper part of the adjuster main body 41 is in the state of an air pool, so the upper surface Z of the fluidized abrasive layer does not rise.

【００９２】なお、吐出管１１から調整器本体４１内へ
落下した研磨材タンク２８内の研磨材２６は、図１の実
施例と同様に、流動状態の研磨材層内の空気が連通管１
７から研磨材タンク２８内へ流れる気流に乗って研磨材
タンク２８へ流出する。他は図１の実施例と同様。The abrasive 26 in the abrasive tank 28 dropped from the discharge pipe 11 into the adjuster body 41 is the same as in the embodiment of FIG.
The gas flows from 7 into the abrasive tank 28 and flows into the abrasive tank 28. Others are the same as the embodiment of FIG.

【００９３】なお、上述した図１〜図３の実施例におい
ては、吐出管１１の吐出管口１２の下端縁と連通管１５
の連通口１６の端縁の頂点又は連通管１７の下端縁の位
置が水平方向で同じ位置であるが、必ずしも、同じ位置
に限定されない。つまり、吐出管１１の吐出管口１２の
下端縁が連通管１５の連通口１６の端縁の頂点又は連通
管１７の下端縁の位置より水平方向で下方に位置してい
てもよく、この場合、設定高さＨｓは連通管１５の連通
口１６の端縁の頂点又は連通管１７の下端縁の位置とな
る。以下にその理由を説明する。In the embodiment shown in FIGS. 1 to 3 described above, the lower end edge of the discharge pipe port 12 of the discharge pipe 11 and the communication pipe 15 are connected.
The apex of the edge of the communication port 16 or the position of the lower edge of the communication pipe 17 is the same position in the horizontal direction, but is not necessarily limited to the same position. That is, the lower end edge of the discharge pipe port 12 of the discharge pipe 11 may be located below the apex of the end edge of the communication port 16 of the communication pipe 15 or the lower end edge of the communication pipe 17 in the horizontal direction. The set height Hs is the apex of the edge of the communication port 16 of the communication tube 15 or the position of the lower edge of the communication tube 17. The reason will be described below.

【００９４】（１）吐出管１１の吐出管口１２の下端縁
が連通管１５の連通口１６の端縁の頂点又は連通管１７
の下端縁の位置より水平方向で上方に位置する場合。(1) The lower end edge of the discharge pipe port 12 of the discharge pipe 11 is the apex of the end edge of the communication port 16 of the communication pipe 15 or the communication pipe 17.
When positioned horizontally above the bottom edge of the.

【００９５】調整器本体４１内の流動状態の研磨材層の
上面Ｚが上昇して連通口１６の端縁の頂点又は連通管１
７の下端縁の位置に達しても、流動状態の研磨材層の上
面Ｚが吐出管１１の吐出管口１２を塞いだ状態にならな
いので、調整器本体４１の上部の空気層は吐出管口１２
から吐出管１１を経て研磨材タンク２８内へ流出するこ
ともあり、この場合、連通口１６の端縁の頂点又は連通
管１７の下端縁の位置で空気溜りの状態にならないた
め、流動状態の研磨材層の上面Ｚは連通口１６の端縁の
頂点又は連通管１７の下端縁の位置で停止しない。しか
し、吐出管１１内が研磨材タンク２８内の微粉性質の研
磨材２６で塞がれた状態のときは、上部の空気層の空気
は吐出管口１２から吐出管１１を経て研磨材タンク２８
内へ流出しないので、連通口１６の端縁の頂点又は連通
管１７の下端縁の位置で空気溜りの状態になり、流動状
態の研磨材層の上面Ｚが連通口１６の端縁の頂点又は連
通管１７の下端縁の位置で停止する。The upper surface Z of the abrasive layer in the fluidized state in the adjuster body 41 rises to rise to the apex of the edge of the communication port 16 or the communication pipe 1.
Even when reaching the position of the lower end edge of 7, the upper surface Z of the abrasive layer in the fluidized state does not block the discharge pipe port 12 of the discharge pipe 11, so the air layer above the regulator body 41 is the discharge pipe port. 12
May flow out into the abrasive tank 28 through the discharge pipe 11, and in this case, the air is not accumulated at the apex of the end edge of the communication port 16 or the lower end edge of the communication pipe 17, so that the flow state of The upper surface Z of the abrasive layer does not stop at the apex of the edge of the communication port 16 or the lower edge of the communication tube 17. However, when the inside of the discharge pipe 11 is blocked by the fine powdery abrasive 26 in the abrasive tank 28, the air in the upper air layer passes from the outlet pipe opening 12 through the outlet pipe 11 to the abrasive tank 28.
Since it does not flow out into the inside, air is trapped at the apex of the edge of the communication port 16 or the position of the lower edge of the communication pipe 17, and the upper surface Z of the abrasive layer in the fluid state is apex of the edge of the communication port 16 or It stops at the position of the lower end edge of the communication pipe 17.

【００９６】したがって、流動状態の研磨材層の上面Ｚ
の高さＨが不安定となるので、好ましくない。Therefore, the upper surface Z of the fluidized abrasive layer Z
Since the height H becomes unstable, it is not preferable.

【００９７】（２）吐出管１１の吐出管口１２の下端縁
が連通管１５の連通口１６の端縁の頂点又は連通管１７
の下端縁の位置より水平方向で下方に位置する場合。(2) The lower end edge of the discharge pipe port 12 of the discharge pipe 11 is the apex of the end edge of the communication port 16 of the communication pipe 15 or the communication pipe 17.
When positioned horizontally below the bottom edge of the.

【００９８】調整器本体４１内の流動状態の研磨材層の
上面Ｚが上昇して吐出管口１２の下端縁に達しても、調
整器本体４１の上部の空気層は連通管１５又は連通管１
７より研磨材タンク２８へ流出するので、さらに上昇し
て連通口１６の端縁の頂点又は連通管１７の下端縁の位
置で停止し、流動状態の研磨材層の上面Ｚの高さＨが安
定する。Even if the upper surface Z of the fluidized abrasive layer in the adjuster main body 41 rises and reaches the lower end edge of the discharge pipe port 12, the air layer above the adjuster main body 41 has the communication pipe 15 or the communication pipe. 1
7 flows out into the abrasive material tank 28, and further rises and stops at the apex of the end of the communication port 16 or the position of the lower end edge of the communication pipe 17, and the height H of the upper surface Z of the abrasive material layer in the fluid state is Stabilize.

【００９９】なお、以上の実施例においては研磨材タン
ク２８の下端の吐出口に調整器本体４１を装着した研磨
材調整器１０について説明したが、本発明の研磨材調整
器１０は、従来例で示したようにサイクロン２３の吐出
口の下端に装着できることはもちろんである。In the above embodiments, the abrasive material adjuster 10 in which the adjuster main body 41 is attached to the discharge port at the lower end of the abrasive material tank 28 has been described, but the abrasive material adjuster 10 of the present invention is not limited to the conventional example. Needless to say, it can be attached to the lower end of the discharge port of the cyclone 23 as shown in FIG.

【０１００】また、以上の実施例においては、図１ない
し図３に示すようにサイクロン２３の下端に研磨材タン
ク２８を連通し、この研磨材タンク２８の下端に設けた
研磨材調整器１０について説明したが、本発明の研磨材
調整器１０は従来のいわゆる吸込式（重力式、サイホン
式等）、直圧式等のブラスト装置に装着でき、特に限定
されず、部材等の変更については装着する装置に応じて
適宜任意である。Further, in the above embodiments, as shown in FIGS. 1 to 3, the abrasive material tank 28 is connected to the lower end of the cyclone 23, and the abrasive material adjuster 10 provided at the lower end of the abrasive material tank 28. As described above, the abrasive material adjuster 10 of the present invention can be mounted on a conventional so-called suction type (gravity type, siphon type, etc.), direct pressure type blasting device, etc., and is not particularly limited, and it is mounted for changing members etc. It is optional depending on the device.

【０１０１】[0101]

【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を奏する。Since the present invention is constructed as described above, it has the following effects.

【０１０２】（１）サイクロン又は研磨材タンク内の上
部の空気の層と調整器本体内とを連通管を介して連通
し、該連通管の下端の連通口を調整器本体内の研磨材所
望量の高さに位置せしめると共に、前記サイクロン又は
研磨材タンクの吐出口に吐出管を連結して前記吐出口の
下端縁を調整器本体の開口部より下方に延長し、前記吐
出管の吐出口の下端縁を連通管の連通口と同一の高さ又
はこの高さより下方に設けたので、連通管の連通口の端
縁の頂点の位置以上の上部の空気層は空気溜りと同様の
状態になるため、調整器本体内の流動状態の研磨材層の
上面Ｚが連通口の端縁の頂点の位置以上に上昇せず、一
方、サイクロン又は研磨材タンクから調整器本体へ余分
に落下する研磨材は連通管内の上昇気流に乗って研磨材
タンクへ流出するので、サクションパイプの混合流体吐
出口から調整器本体内の流動状態の研磨材層の上面Ｚま
での高さは、常に連通管の連通口の端縁の頂点の位置の
設定高さに維持され、サクションパイプ内に吸入される
研磨材の量、すなわち噴射ノズルより噴射される研磨材
噴射量は一定に維持され安定する。(1) The upper air layer in the cyclone or the abrasive tank is communicated with the inside of the regulator main body through a communication pipe, and the communication port at the lower end of the communication pipe is used for the abrasive in the regulator main body. The discharge pipe of the discharge pipe is connected to the discharge port of the cyclone or the abrasive tank, and the lower end edge of the discharge port is extended below the opening of the main body of the regulator. Since the lower end edge of the communication pipe is provided at the same height as the communication port of the communication pipe or below this height, the air layer above the position of the apex of the edge of the communication port of the communication pipe is in the same state as the air pool. Therefore, the upper surface Z of the fluidized abrasive layer in the adjuster body does not rise above the position of the apex of the edge of the communication port, while excessively dropping from the cyclone or abrasive tank to the adjuster body. The material rides on the rising air flow in the communication pipe and flows out to the abrasive tank. The height from the mixed fluid discharge port of the suction pipe to the upper surface Z of the fluidized abrasive layer in the adjuster body is always maintained at the set height at the apex of the end of the communication port of the communication pipe, The amount of abrasive material sucked into the suction pipe, that is, the amount of abrasive material sprayed from the spray nozzle is maintained constant and stable.

【０１０３】（２）上記（１）項の理由で、サイクロン
だけでなく研磨材タンクの吐出口に装着しても研磨材噴
射量を安定可能な研磨材調整器を提供できた。(2) For the reason of the above item (1), it is possible to provide the abrasive material adjuster capable of stabilizing the abrasive material injection amount not only in the cyclone but also in the discharge port of the abrasive material tank.

【０１０４】（３）サクションパイプの吸気口を吸気管
を介してサイクロン又は研磨材タンク内の上部に連通し
たので、サクションパイプの吸気口が吐出管の吐出口か
ら落下する研磨材が吸気口より吸入されることはなく、
サクションパイプ内に吸入される研磨材の量は安定し、
研磨材噴射量は一定に維持され安定する。(3) Since the intake port of the suction pipe is communicated with the upper part of the cyclone or the polishing material tank through the intake pipe, the suction port of the suction pipe drops from the discharge port of the discharge pipe so that the polishing material falls from the intake port. Never inhaled,
The amount of abrasives sucked into the suction pipe is stable,
The amount of abrasive sprayed is maintained constant and stable.

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

【図１】本発明の実施例の研磨材調整器の縦断面図を示
す。FIG. 1 is a vertical sectional view of an abrasive material adjuster according to an embodiment of the present invention.

【図２】本発明の他の実施例の研磨材調整器の縦断面図
を示す。FIG. 2 is a vertical sectional view of an abrasive material conditioner according to another embodiment of the present invention.

【図３】本発明の他の実施例の研磨材調整器の縦断面図
を示す。FIG. 3 is a vertical sectional view of an abrasive material conditioner according to another embodiment of the present invention.

【図４】本発明の実施例の高さＨと研磨材噴射量の比例
関係図を示す。FIG. 4 is a diagram showing a proportional relationship between the height H and the amount of abrasive material sprayed according to the embodiment of the present invention.

【図５】重力式ブラスト装置の全体図を示す。FIG. 5 shows an overall view of a gravity blast device.

【図６】従来の実施例の研磨材調整器の縦断面図を示
す。FIG. 6 shows a vertical cross-sectional view of a conventional abrasive adjuster.

【図７】従来の他の実施例の研磨材調整器の縦断面図を
示す。FIG. 7 shows a vertical cross-sectional view of another conventional abrasive material adjuster.

【図８】微粉性質を示さない研磨材を収容したときの通
常の研磨材調整器の断面図を示す。FIG. 8 is a cross-sectional view of an ordinary abrasive material conditioner when accommodating an abrasive material that does not exhibit fine powder properties.

【図９】微粉性質を示す研磨材を収容したときの通常の
研磨材調整器の断面図を示す。FIG. 9 shows a cross-sectional view of an ordinary abrasive material conditioner when accommodating an abrasive material having a fine powder property.

【図１０】微粉性質を示す研磨材を収容したときの通常
の研磨材調整器の断面図を示す。FIG. 10 is a cross-sectional view of an ordinary abrasive material conditioner when accommodating an abrasive material having a fine powder property.

【符号の説明】[Explanation of symbols]

１０ 研磨材調整器 １１ 吐出管 １２ 吐出管口 １３ 吸気管 １４ 吸気管 １５ 連通管 １６ 連通口 １７ 連通管 ２１ キャビネット ２２ 噴射ノズル ２３ サイクロン ２４ ダストコレクタ ２５ 出入口 ２６ 研磨材 ２７ 粉塵 ２８ 研磨材タンク ３２ 管 ３３ 管 ３４ 管 ３５ 吐出口 ３６ フランジ ３７ 管 ４０ 研磨材調整器 ４１ 調整器本体 ４２ 開口部 ４３ サクションパイプ ４４ 補助パイプ ４５ 吸気口 ４６ 研磨材吸入口 ４７ 多孔体 ４８ 空気貯溜室 ４９ 空気導入管 ５１ 混合流体吐出口 ５３ 研磨材吸入管 ５４ 上フランジ ５５ 下フランジ ５６ 調整器底板 ５７ パッキン ５８ パッキン ６０ 研磨材調整器 ６１ 調整器本体 ６２ サクションパイプ ６３ 吐出口 ６４ 空洞 10 Abrasive Material Adjuster 11 Discharge Pipe 12 Discharge Pipe Port 13 Intake Pipe 14 Intake Pipe 15 Communication Pipe 16 Communication Port 17 Communication Pipe 21 Cabinet 22 Injection Nozzle 23 Cyclone 24 Dust Collector 25 Entry / Exit 26 Abrasive 27 Dust 28 Abrasive Tank 32 33 pipe 34 pipe 35 discharge port 36 flange 37 pipe 40 abrasive material adjuster 41 adjuster body 42 opening 43 suction pipe 44 auxiliary pipe 45 intake port 46 abrasive material intake port 47 porous body 48 air storage chamber 49 air introduction pipe 51 mixed Fluid discharge port 53 Abrasive suction pipe 54 Upper flange 55 Lower flange 56 Adjuster bottom plate 57 Packing 58 Packing 60 Abrasive adjuster 61 Adjuster body 62 Suction pipe 63 Discharge port 64 Cavity

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 調整器本体の上縁に開口部を備え、該開
口部にサイクロン又は研磨材タンクの吐出口の下端縁を
臨ませ、前記サイクロン又は研磨材タンク内に微粉性質
を有し且つ圧縮空気流で噴き上げ可能な研磨材を投入す
ると共に、前記調整器本体の下部に、圧縮空気供給源に
連通する空気貯溜室を通気性を有する多孔体を介して設
け、且つ噴射ノズルに連通する混合流体吐出口と研磨材
吸入口と吸気口を備えたサクションパイプを前記調整器
本体の内壁に固定した研磨材調整器において、 前記サイクロン又は研磨材タンク内の上部の空気の層と
調整器本体内とを連通管を介して連通し、該連通管の下
端の連通口を調整器本体内の研磨材所望量の高さに位置
せしめると共に、前記サイクロン又は研磨材タンクの吐
出口に吐出管を連結してこの吐出管口の下端縁を調整器
本体の開口部より下方に延長し、前記吐出管口の下端縁
を連通管の連通口と同一の高さ以下に設けたことを特徴
とするブラスト装置における研磨材調整器。1. A regulator main body is provided with an opening at an upper edge thereof, and a lower end edge of a discharge port of a cyclone or an abrasive tank is exposed to the opening, and the cyclone or the abrasive tank has a fine powder property. An abrasive material that can be blown up by a compressed air flow is introduced, and an air storage chamber that communicates with a compressed air supply source is provided below the adjuster body through a porous body having air permeability and communicates with an injection nozzle. An abrasive material adjuster in which a suction pipe having a mixed fluid discharge port, an abrasive material intake port, and an intake port is fixed to an inner wall of the adjuster body, wherein an air layer in an upper part of the cyclone or the abrasive material tank and the adjuster body The inside of the adjusting pipe is communicated with the inside of the adjusting pipe, and the communicating port at the lower end of the communicating pipe is positioned at the height of the desired amount of the abrasive in the adjuster body, and the discharge pipe is connected to the discharge port of the cyclone or the abrasive tank. Connect Polishing in a blasting device, characterized in that the lower end edge of the discharge pipe opening is extended below the opening of the adjuster body, and the lower end edge of the discharge pipe opening is provided at the same height or less as the communication pipe communication opening. Material adjuster. 【請求項２】 前記連通管の下端の連通口を調整器本体
の側壁より調整器本体内に臨ませ、前記連通口の端縁の
頂点を調整器本体内の研磨材所望量の高さに位置せしめ
た請求項１記載のブラスト装置における研磨材調整器。2. The communication port at the lower end of the communication pipe is made to face the inside of the adjuster body from the side wall of the adjuster body, and the apex of the end edge of the communication port is set to the desired height of the abrasive in the adjuster body. The abrasive adjuster in the blasting device according to claim 1, which is positioned. 【請求項３】 前記連通管をサイクロン又は研磨材タン
クの壁面に上下方向に貫通し、該連通管の上端をサイク
ロン又は研磨材タンク内の上部の空気の層に臨ませ、且
つ連通管の下端の連通口を調整器本体内に臨ませ、前記
連通口の下端縁を調整器本体内の研磨材所望量の高さに
位置せしめた請求項１記載のブラスト装置における研磨
材調整器。3. The communication pipe is vertically penetrated through the wall surface of the cyclone or the abrasive tank, the upper end of the communication pipe is made to face the upper air layer in the cyclone or the abrasive tank, and the lower end of the communication pipe. 2. The abrasive material adjuster in a blasting apparatus according to claim 1, wherein the communication port of the above is exposed to the inside of the adjuster body, and the lower end edge of the communication port is positioned at the height of the desired amount of abrasive material in the adjuster body. 【請求項４】 前記サクションパイプの吸気口を吸気管
を介してサイクロン又は研磨材タンク内の上部に連通し
た請求項１、２又は３記載のブラスト装置における研磨
材調整器。4. The abrasive material adjuster in a blast apparatus according to claim 1, 2 or 3, wherein an intake port of said suction pipe is connected to an upper part of a cyclone or an abrasive material tank through an intake pipe. 【請求項５】 前記サクションパイプの混合流体吐出口
と反対方向の一端に吸気口を設け、この吸気口を調整器
本体外の外気に臨ませた請求項１、２又は３記載のブラ
スト装置における研磨材調整器。5. The blast device according to claim 1, 2 or 3, wherein an intake port is provided at one end of the suction pipe in a direction opposite to the mixed fluid discharge port, and the intake port is exposed to the outside air outside the regulator main body. Abrasive adjuster.
JP28950993A 1993-11-18 1993-11-18 Abrasive material adjuster in blasting equipment Expired - Fee Related JP2942124B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28950993A JP2942124B2 (en) 1993-11-18 1993-11-18 Abrasive material adjuster in blasting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28950993A JP2942124B2 (en) 1993-11-18 1993-11-18 Abrasive material adjuster in blasting equipment

Publications (2)

Publication Number Publication Date
JPH07136935A true JPH07136935A (en) 1995-05-30
JP2942124B2 JP2942124B2 (en) 1999-08-30

Family

ID=17744192

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28950993A Expired - Fee Related JP2942124B2 (en) 1993-11-18 1993-11-18 Abrasive material adjuster in blasting equipment

Country Status (1)

Country Link
JP (1) JP2942124B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011506120A (en) * 2007-12-20 2011-03-03 サン−ゴベン・セントル・ドゥ・レシェルシェ・エ・デチュード・ユーロペアン Shot blast particles
JP2015517409A (en) * 2012-05-25 2015-06-22 テヒノフォント ギーサライヒルフスミッテル ゲゼルシャフト ミット ベシュレンクテル ハフツングＴｅｃｈｎｏｆｏｎｄ Ｇｉｅｓｓｅｒｅｉｈｉｌｆｓｍｉｔｔｅｌ ＧｍｂＨ Playback device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011506120A (en) * 2007-12-20 2011-03-03 サン−ゴベン・セントル・ドゥ・レシェルシェ・エ・デチュード・ユーロペアン Shot blast particles
JP2015517409A (en) * 2012-05-25 2015-06-22 テヒノフォント ギーサライヒルフスミッテル ゲゼルシャフト ミット ベシュレンクテル ハフツングＴｅｃｈｎｏｆｏｎｄ Ｇｉｅｓｓｅｒｅｉｈｉｌｆｓｍｉｔｔｅｌ ＧｍｂＨ Playback device

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