TWI700126B

TWI700126B - Classification agency

Info

Publication number: TWI700126B
Application number: TW108108928A
Authority: TW
Inventors: 日比野一路; 水野武夫
Original assignee: 日商新東工業股份有限公司
Priority date: 2014-06-18
Filing date: 2015-06-17
Publication date: 2020-08-01
Also published as: CN110052970B; JP2019022942A; KR20170020322A; WO2015194478A1; TWI657863B; TW201927413A; JP6627952B2; CN106457516A; JP6439796B2; CN106457516B; JPWO2015194478A1; TW201607618A; CN110052970A

Abstract

本發明之噴射加工裝置具備：噴射加工用噴嘴，其將於噴嘴保持器內部抽吸之噴射材料與壓縮空氣混合並噴射；殼體，其收納有噴射加工用噴嘴；分級機構，其連接於殼體；抽吸機構，其連接於分級機構；及儲存進料斗，其貯存利用分級機構而分級之可再使用之噴射材料。又，儲存進料斗位於噴射加工用噴嘴之下方，因而進而設置用以將該儲存進料斗中所貯存之噴射材料移送至噴射加工用噴嘴之噴射材料移送機構，藉此可穩定地將噴射材料移送至噴射加工用噴嘴。The jet processing device of the present invention is provided with: a jet processing nozzle that mixes and jets the jet material sucked in the nozzle holder with compressed air; a housing containing the jet processing nozzle; and a classification mechanism connected to the housing The suction mechanism, which is connected to the grading mechanism, and the storage feed hopper, which stores the reusable spray material classified by the grading mechanism. In addition, the storage hopper is located below the nozzle for injection processing, so a spray material transfer mechanism for transferring the spray material stored in the storage hopper to the nozzle for spray processing is further provided, thereby stably transferring the spray material To the nozzle for jet processing.

Description

分級機構Classification agency

本發明係關於一種將壓縮空氣與噴射材料一併朝向被加工物噴射之乾式噴射加工裝置，尤其係關於一種抽吸式之噴射加工裝置及噴射加工方法。The present invention relates to a dry spray processing device that sprays compressed air and spray materials toward a workpiece, and more particularly to a suction type spray processing device and a spray processing method.

已知有一種噴射加工裝置，其於壓縮空氣中混合噴射材料，將該混合物作為氣固兩相流自噴嘴向被加工物噴射，藉此進行被加工物之表面處理(例如，毛邊及鏽垢之除去、端面之形狀之調整、表面粗糙度之調整、被加工物之花樣形成、薄膜層之除去等)。噴射加工裝置視使噴射材料與壓縮空氣混合之方式之不同，大致分為抽吸式及直壓式2種。抽吸式之噴射加工裝置係如下構成：利用藉由噴射至噴嘴內部之壓縮空氣而於噴嘴內部產生之抽吸力，於噴嘴內部將壓縮空氣與噴射材料混合(例如，專利文獻1)。該類型之噴射加工裝置無需如直壓式般之加壓罐，故而噴射加工裝置本身較為小型化。通常，噴射加工裝置於將包含所噴射之噴射材料之粉粒體回收並分級之後，僅將可再使用之噴射材料再次自噴嘴噴射。於抽吸式之噴射加工裝置中，必須利用噴嘴之抽吸力將已分級之噴射材料抽吸至噴嘴內部。因此，一般而言係如專利文獻1般，於殼體之上部配置分級裝置及貯存分級後之噴射材料之料斗，除抽吸力以外亦利用重力。 [先前技術文獻] [專利文獻] [專利文獻1]日本專利特開平04-087771號公報There is known a jet processing device, which mixes jet materials in compressed air, and jets the mixture as a gas-solid two-phase flow from a nozzle to the workpiece, thereby performing surface treatment of the workpiece (such as burrs and rust). Removal, adjustment of end face shape, adjustment of surface roughness, pattern formation of processed objects, removal of film layer, etc.). The jet processing equipment is roughly divided into two types: suction type and direct pressure type, depending on the method of mixing the jet material and compressed air. The suction type jet processing device is configured as follows: the compressed air and the jet material are mixed in the nozzle by the suction force generated in the nozzle by the compressed air jetted into the nozzle (for example, Patent Document 1). This type of jet processing device does not need a pressurized tank like the direct pressure type, so the jet processing device itself is relatively small. Generally, after the spray processing device recovers and classifies the powder and granular body containing the sprayed spray material, only the reusable spray material is sprayed from the nozzle again. In a suction jet processing device, the suction force of the nozzle must be used to suck the graded jet material into the nozzle. Therefore, in general, as in Patent Document 1, a classification device and a hopper for storing the classified spray material are arranged on the upper part of the casing, and gravity is used in addition to suction. [Prior Technical Literature] [Patent Literature] [Patent Document 1] Japanese Patent Laid-Open No. 04-087771

[發明所欲解決之問題] 先前之裝置因分級裝置及貯存分級後之噴射材料之料斗配置於上方，故裝置整體之尺寸變得大型。因此，於先前之裝置中，例如，與另一種噴射材料進行調換時之該等機器之清掃、該等機器發生故障之情形時之檢查作業等維護性不可謂良好。又，於先前之裝置中，有無法滿足將噴射加工裝置向工廠中配置時之設置空間之條件之虞。而且，於先前之裝置中，有妨礙工廠內之視野之虞。於本技術領域，期待一種小型化之抽吸式之噴射加工裝置及噴射加工方法。 [解決問題之技術手段] 本發明之一形態係具備將噴射材料與壓縮空氣一併噴射之噴射加工用噴嘴之噴射加工裝置。一形態之噴射加工裝置分別包含殼體、噴射加工用噴嘴、分級機構、抽吸機構、儲存進料斗(storage hopper)、及噴射材料移送機構。殼體於內部劃分形成作為封閉空間之噴射加工室。噴射加工用噴嘴收容於噴射加工室，將噴射材料與壓縮空氣一併噴射。分級機構連接於噴射加工室，於其內部對包含噴射材料之粉粒體進行分級。抽吸機構連接於分級機構，對分級機構之內部進行抽吸。儲存進料斗連接於分級機構，貯存藉由分級機構而分級之噴射材料。噴射材料移送機構設置於儲存進料斗，將儲存進料斗中所貯存之噴射材料移送至噴射加工用噴嘴。噴射加工用噴嘴具有：空氣噴嘴，其供給壓縮空氣；噴射噴嘴，其噴射噴射材料及壓縮空氣；及噴嘴保持器，其供空氣噴嘴及噴射噴嘴插嵌，具有連接於噴射材料移送機構之噴射材料抽吸口。而且，儲存進料斗配置於較噴射加工用噴嘴靠下方處。於本發明之一態樣中，因於與先前相比較低之位置配置分級機構，故噴射加工裝置整體變得小型化。但是，於貯存罐位於殼體之下部，即較噴射加工用噴嘴靠下方處之情形時，難以僅利用噴射加工用噴嘴之內部所產生之抽吸力穩定地將噴射材料移送至噴射加工用噴嘴。於本發明之一態樣中，設置有噴射材料移送機構，因此可將噴射材料穩定地移送至噴射加工用噴嘴。於一實施形態中，噴射加工裝置亦可進而具備基台。而且，殼體亦可以使上述噴射加工室與上述基台隔開而進行支持之方式配置於該基台。而且，分級機構及儲存進料斗亦可配置於上述殼體之內部且噴射加工室與基台之間。因於與先前相比較低之位置配置分級機構，故噴射加工裝置更小型化。於一實施形態中，噴射材料移送機構亦可利用藉由將壓縮空氣自空氣噴嘴供給至噴嘴保持器內而產生之抽吸力抽吸外氣，並利用該外氣之流動移送噴射材料。不另外設置用以移送噴射材料之動力源，便可穩定地將噴射材料移送至噴射加工用噴嘴。於一實施形態中，儲存進料斗亦可具有第1側面及與第1側面對向之第2側面。而且，噴射材料移送機構亦可具備：噴射材料取出管，其貫通第1側面，且後端配置於儲存進料斗之內部；及外氣導入管，其貫通與噴射材料取出管對向之第2側面之位置，且前端配置於儲存進料斗之內部。藉由簡單之構成便可將噴射材料移送至噴射加工用噴嘴。於一實施形態中，亦可為外氣導入管之前端***至噴射材料取出管，且該外氣導入管之外壁與該噴射材料取出管之內壁之間隙可進行調整之構成。藉由該構成，可任意地設定移送至噴射加工用噴嘴之噴射材料之量，故而可設定加工能力。於一實施形態中，亦可為外氣導入管之外徑大於噴射材料取出管之內徑，且於該外氣導入管之前端設置有以其外徑小於該噴射材料取出管之內徑之方式連續地縮徑之部位。可容易地調整外氣導入管之外壁與噴射材料取出管之內壁之間隙。於一實施形態中，上述分級機構亦可分別包含整流構件、分級構件、抽吸構件及投入構件。整流構件呈圓筒形狀，以軸線於水平方向上延伸之方式設置，且一端面藉由封閉板而封閉。分級構件係以相對於整流構件之軸線成直角之方式連接於該整流構件之另一端，且於內部具有對包含噴射材料之粉粒體進行分級之空間。抽吸構件呈圓筒形狀，貫通封閉板而配置於整流構件之內部，且與整流構件呈同心狀配置。投入構件係用以將包含噴射材料之粉粒體投入至上述分級機構之內部之構件，設置於上述整流構件之上述封閉板側。而且，抽吸構件與抽吸機構連接，投入構件係以噴射材料沿整流構件之內壁向分級構件移送之方式配置。藉由該構成，分級機構可較先前之旋風分離式分級機小型化，故而可使噴射加工裝置整體小型化。於一實施形態中，亦可為藉由整流構件之內壁面與位於整流構件之內部之抽吸構件之外壁面形成整流部，位於與整流部之端面對向之位置之分級構件之壁面相對於該端面平行，整流部之端面至位於與該端面對向之位置之分級構件之壁面之長度相對於整流部之長度之比例設定為1.25～1.75。於一形態中，於整流部，整流構件之直徑相對於抽吸構件之直徑之比例亦可設定為1.5～2.0。藉由設定為該範圍，可利用整流部良好地對包含噴射材料之粉粒體進行整流，故而可精度較佳地僅回收可再利用之噴射材料。藉由該等構成之噴射加工裝置而實施之噴射加工方法之一實施形態包含：抽吸步驟，其藉由抽吸機構對噴射加工室內進行抽吸；噴射步驟，其向空氣噴嘴供給壓縮空氣而將噴射材料自噴射噴嘴向被加工物噴射；使噴射材料碰撞而進行被加工物之研磨之步驟；及分級步驟，藉由分級機構自所噴射之包含噴射材料之粉粒體回收噴射材料。而且，分級步驟亦可包含如下步驟：藉由抽吸機構之作動，使分級機構內成為負壓並且於整流部產生一面回旋一面朝向分級構件之氣流；將包含噴射材料之粉粒體自投入構件投入至該分級機構內；使該粉粒體藉由氣流一面回旋一面朝向該分級構件前進；及使噴射材料自到達該分級構件之包含該噴射材料之粉粒體朝向該分級構件之底部下落並且自抽吸構件抽吸剩餘粉粒體。根據一實施形態，即便不使用如先前之噴射加工裝置般之縱長之風力分級機，亦可精度較佳地回收可再利用之噴射材料，故而即便進行複數個被加工物之噴射加工亦可進行加工程度之不均較少之噴射加工。 [發明之效果] 如以上所說明般，根據本發明之各種態樣及實施形態，提供一種較先前之噴射加工裝置小型化之噴射加工裝置、及使用該裝置之加工方法。[The problem to be solved by the invention] In the previous device, the grading device and the hopper for storing the sprayed materials after classification are arranged above, so the overall size of the device has become large. Therefore, in the previous device, for example, the cleaning of the machines when replacing with another spray material, the inspection work when the machines are broken down, and other maintenance are not good. In addition, in the previous device, there is a possibility that the condition of the installation space when the spray processing device is arranged in the factory cannot be satisfied. Moreover, in the previous device, there is a risk of obstructing the vision in the factory. In the technical field, a miniaturized suction type jet processing device and jet processing method are expected. [Technical means to solve the problem] One aspect of the present invention is a jet processing device provided with a jet processing nozzle for jetting a jet material and compressed air together. One form of spray processing device includes a housing, a nozzle for spray processing, a classification mechanism, a suction mechanism, a storage hopper, and a spray material transfer mechanism. The shell is divided into an injection processing chamber as a closed space. The nozzle for jet processing is housed in the jet processing chamber and jets the jet material and compressed air together. The grading mechanism is connected to the spray processing chamber, and classifies the powder and granule containing the spray material inside. The suction mechanism is connected to the grading mechanism and sucks the inside of the grading mechanism. The storage and feed hopper is connected to the classification mechanism, and stores the spray materials classified by the classification mechanism. The spray material transfer mechanism is arranged in the storage hopper, and transfers the spray material stored in the storage hopper to the nozzle for spray processing. The nozzle for jet processing has: an air nozzle, which supplies compressed air; a jet nozzle, which jets jet material and compressed air; and a nozzle holder, which inserts the air nozzle and jet nozzle and has jet material connected to the jet material transfer mechanism Suction port. Furthermore, the storage hopper is arranged below the nozzle for jet processing. In one aspect of the present invention, since the grading mechanism is arranged at a lower position than before, the entire spray processing device is miniaturized. However, when the storage tank is located at the lower part of the housing, that is, below the nozzle for spray processing, it is difficult to stably transfer the spray material to the nozzle for spray processing using only the suction force generated inside the nozzle for spray processing . In one aspect of the present invention, a spray material transfer mechanism is provided, so the spray material can be stably transferred to the nozzle for spray processing. In one embodiment, the jet processing apparatus may further include a base. In addition, the housing may be arranged on the base so as to partition the jet processing chamber from the base to support it. Moreover, the grading mechanism and the storage hopper can also be arranged inside the housing and between the injection processing chamber and the base. Since the grading mechanism is arranged at a lower position than before, the jet processing device is more compact. In one embodiment, the spray material transfer mechanism may also use the suction force generated by supplying compressed air from the air nozzle into the nozzle holder to suck the outside air, and transfer the spray material by the flow of the outside air. Without separately providing a power source for transferring the spray material, the spray material can be stably transferred to the nozzle for spray processing. In one embodiment, the storage hopper may have a first side surface and a second side surface opposite to the first side surface. Moreover, the injection material transfer mechanism may also include: an injection material extraction pipe which penetrates the first side surface and whose rear end is arranged inside the storage hopper; and an external air introduction pipe which penetrates the second injection material extraction pipe opposite to The side position, and the front end is arranged inside the storage hopper. With a simple structure, the spray material can be transferred to the spray nozzle. In one embodiment, the front end of the external air introduction pipe may be inserted into the ejection material extraction pipe, and the gap between the outer wall of the external air introduction pipe and the inner wall of the ejection material extraction pipe can be adjusted. With this structure, the amount of spray material transferred to the nozzle for spray processing can be arbitrarily set, so the processing capacity can be set. In one embodiment, the outer diameter of the outer air introduction pipe may be larger than the inner diameter of the ejection material extraction pipe, and the front end of the outer air introduction pipe is provided with an outer diameter smaller than the inner diameter of the ejection material extraction pipe The method continuously reduces the diameter of the part. The gap between the outer wall of the external air introduction pipe and the inner wall of the ejection material extraction pipe can be easily adjusted. In one embodiment, the aforementioned classification mechanism may also include a rectifying member, a classification member, a suction member, and an input member, respectively. The rectifying member has a cylindrical shape and is arranged in such a way that the axis extends in the horizontal direction, and one end surface is closed by a closing plate. The grading member is connected to the other end of the rectifying member at a right angle with respect to the axis of the rectifying member, and has a space for grading the powder and granule containing the spray material inside. The suction member has a cylindrical shape, penetrates the closing plate and is arranged inside the rectification member, and is arranged concentrically with the rectification member. The input member is a member for injecting powder and granular material containing spray material into the inside of the classification mechanism, and is provided on the side of the closing plate of the rectification member. Furthermore, the suction member is connected to the suction mechanism, and the input member is arranged in such a manner that the spray material is transferred to the classification member along the inner wall of the rectifying member. With this configuration, the classification mechanism can be downsized compared to the conventional cyclone separation type classifier, so the entire jet processing device can be downsized. In one embodiment, the rectifying part may be formed by the inner wall surface of the rectifying member and the outer wall surface of the suction member located inside the rectifying member, and the wall surface of the grading member located at the position facing the end face of the rectifying part is opposite Parallel to the end surface, the ratio of the length from the end surface of the rectifying portion to the wall surface of the grading member located at a position facing the end surface to the length of the rectifying portion is set to be 1.25 to 1.75. In one aspect, in the rectifying part, the ratio of the diameter of the rectifying member to the diameter of the suction member can also be set to 1.5-2.0. By setting it to this range, the powder or granule containing the spray material can be rectified well by the rectification part, so that only the reusable spray material can be recovered accurately. An embodiment of the jet processing method implemented by the jet processing device of these configurations includes: a suction step, which sucks the jet processing chamber by a suction mechanism; and an injection step, which supplies compressed air to an air nozzle. The spray material is sprayed from the spray nozzle to the workpiece; the spray material is collided to perform the grinding of the workpiece; and the classification step is to recover the spray material from the sprayed powder containing the spray material by the classification mechanism. Moreover, the classification step may also include the following steps: by the action of the suction mechanism, the inside of the classification mechanism becomes negative pressure and the rectifying part generates an air flow with one side swirling and the other side facing the classification member; Put into the classification mechanism; make the powder and granular body rotate side by side by the air flow and advance toward the classification member; and make the spray material fall toward the bottom of the classification member from the powder and granular body containing the spray material that reaches the classification member and The remaining powder and granules are sucked from the suction member. According to one embodiment, even if the longitudinal wind classifier like the conventional jet processing device is not used, the reusable jet material can be recovered accurately, so even if the jet processing of a plurality of workpieces is performed Perform jet processing with less uneven processing. [Effects of Invention] As described above, according to various aspects and embodiments of the present invention, a jet processing device that is smaller than the previous jet processing device and a processing method using the device are provided.

使用圖式對本實施形態之噴射加工裝置之一例進行說明。本發明並不限定於本實施形態，只要不脫離發明之範圍，則可加上變更、修正、改良。再者，以下之說明中之「上下左右之方向」只要不特別說明，則指圖中之方向。「上下」為圖中之Z方向，「左右」為圖中之X方向，深度方向為圖中之Y軸之正方向，近前方向為圖中之Y軸之負方向。於圖1及圖2中表示本實施形態之噴射加工裝置1。圖1係表示本實施形態之噴射加工裝置1之外觀之模式圖。圖1(A)為前視圖，圖1(B)為右側面圖，圖1(C)為後視圖。圖2係表示圖1(A)中之A-A剖面之模式圖。噴射加工裝置1例如具備噴射加工用噴嘴10、殼體20、分級機構30、抽吸機構40、儲存進料斗50、噴射材料移送機構60、及形成底面之基台70。噴射加工用噴嘴10係所謂之抽吸式。噴射加工用噴嘴10配置於下述噴射加工室R，與壓縮空氣一起噴射噴射材料。圖3係用以對圖2所示之噴射加工用噴嘴進行說明之模式圖(部分剖視圖)。如圖3所示，噴射加工用噴嘴10例如具備噴嘴保持器11、圓筒形狀之空氣噴嘴12、及圓筒形狀之噴射噴嘴13。噴嘴保持器11於其內部形成有將壓縮空氣與噴射材料混合之混合室11c。噴嘴保持器11具備連通於混合室11c之3個開口。例如，噴嘴保持器11具有噴射材料抽吸口11a、空氣噴嘴***口11d及噴射噴嘴***口11e。空氣噴嘴***口11d及噴射噴嘴***口11e之中心為同軸。噴射材料抽吸口11a係朝向與空氣噴嘴***口11d及噴射噴嘴***口11e所排列之方向交叉之方向而形成。噴射材料抽吸口11a係用以將噴射材料投入(抽吸)至噴嘴保持器11內部之開口。噴射材料抽吸口11a連通於噴嘴保持器11之內部所形成之路徑11b。路徑11b連通於混合室11c。空氣噴嘴12插嵌於空氣噴嘴***口11d(噴嘴保持器11之一端側(於圖3中為上端面側))而固定。噴射噴嘴13插嵌於噴射噴嘴***口11e(噴嘴保持器11之另一端側)而固定。空氣噴嘴12及噴射噴嘴13係以各者之橫截面之中心線大致位於同一條線上之方式配置。藉由噴嘴保持器11及噴射噴嘴13之內面，於噴嘴保持器11之內部，劃分形成混合室11c。空氣噴嘴12係用以向噴嘴保持器11內部噴射壓縮空氣之噴嘴。於壓縮空氣之路徑12a，具有用以使壓縮空氣之流速加速之加速部12b。空氣噴嘴12連接於未圖示之壓縮機。噴射噴嘴13係用以將已於混合室11c混合之壓縮空氣與噴射材料作為氣固兩相流自噴射口13a噴射之噴嘴。氣固兩相流之路徑係藉由自噴嘴保持器11側端面朝向前端連續地縮徑之加速部13c、及對已通過加速部13c之氣固兩相流之流動進行整流之整流部13d而形成。若藉由空氣噴嘴12向噴嘴內部噴射壓縮空氣，則於噴嘴保持器11之內部，即混合室11c產生抽吸力。因該抽吸力之大小視空氣噴嘴12之前端與噴射噴嘴13之內壁面之距離而改變，故以成為最佳抽吸力之方式於上下方向上對空氣噴嘴12進行調整，並藉由未圖示之螺栓等將空氣噴嘴12固定於噴嘴保持器11。自噴射材料抽吸口11a投入(抽吸)之噴射材料通過路徑11b，移送至混合室11c。到達混合室11c之噴射材料與壓縮空氣混合。混合之壓縮空氣與噴射材料通過路徑13b，自噴射口13a噴射。來自噴射噴嘴13之噴射壓力之調整係藉由配置於下述外框23之前面之壓力調整閥V而進行。壓力調整閥V設置於外部之空氣壓縮機(未圖示)至空氣噴嘴12之路徑。以於自噴射噴嘴13噴射時，連接於壓力調整閥V之壓力計之數值指向特定之壓力之方式，藉由壓力調整閥V調整壓縮空氣之壓力。再者，於該路徑之途中，進而設置有電磁閥E及連接於電磁閥E之腳踏開關(未圖示)，藉由該腳踏開關，可切換電磁閥E之ON、OFF，即壓縮空氣向空氣噴嘴12之供給之有無。殼體20如圖1及圖2所示，例如具備上部外殼21、下部外殼22、及固定於下部外殼22之外框23。殼體20於其內部劃分形成噴射加工室R。具體而言，於上部外殼21及下部外殼22之內部劃分形成噴射加工室R。上部外殼21例如呈底面開口之箱狀。開口之形狀例如為四邊形。上部外殼21係劃分形成噴射加工室R之構件之一。具體而言，上部外殼21具有分別相對於基台70平行地對向之頂面及底面、相對於底面垂直地立設之4個側面(分別平行地對向之左右側面、前面及背面)、以及以將頂面與前面及背面連接之方式設置之斜面。於上部外殼21之前面側之斜面，設置有可觀察噴射加工室R之內部之觀察窗(監視窗)21a。又，於上部外殼21之頂面設置有用以將外光擷取至噴射加工室R之內部之採光窗21b。觀察窗21a及採光窗21b例如係將由石英玻璃等所形成之具有可視性之板構件嵌入至窗框構件而形成。又，於上部外殼21之前面，設置有作業部21c。作業部21c係連通於噴射加工室R之開口。作業部21c兼具用以於對噴射加工室R內進行抽吸時擷取外氣之吸氣口、及用以於噴射加工時供作業人員將手放入至噴射加工室R內之開口部。於本實施形態中，於作業部21c，固定有設置有自中心部呈放射狀之複數根切口之橡膠板。下部外殼22例如呈上端面開口之倒圓錐梯形狀。下部外殼22係劃分形成噴射加工室R之構件之一。下部外殼22具有較上部外殼21之底面稍大之上端面，且為橫截面之面積朝向底面連續地縮小之形狀。於下部外殼22之上端，立設有嵌裝上部外殼21之下端之殼體22a。又，於下部外殼22之下端，連接有下述投入構件34，噴射加工室R與分級機構30經由投入構件34而連接。外框23例如呈上下端面開口之箱狀。開口之形狀例如為四邊形。外框23立設置於基台70。外框23之上端固定於下部外殼22之殼體22a。即，外框23使下部外殼22與基台70隔開而進行支持。外框23可以使下部外殼22相對於基台70成特定之高度之方式將該下部外殼22固定。於外框23之前面及背面之下部，分別設置有開口部(切口)23a、23b。外框23之前面側之開口部23a如下所述，可於對分級機構30、抽吸機構40、儲存進料斗50、或噴射材料移送機構60進行維護時，供作業人員接近該等構成要素而使用。外框23之背面側之開口部23b可進行藉由抽吸機構40而抽吸之空氣之排氣及抽吸機構40中所產生之熱之散熱。又，於外框23之背面，以上部外殼21之背面之下端與外框23(即下部外殼22)之背面之上端連接之方式設置有鉸鏈24。藉此，上部外殼21以可將其背面之下端作為中心而轉動之方式設置。更具體而言，上部外殼21可以鉸鏈24為中心而轉動。藉由上部外殼21之轉動，可於噴射加工裝置1之前面打開或關閉噴射加工室R。又，於外框23之前面設置有閂鎖25。藉由閂鎖25，固定上部外殼21與外框23(即下部外殼22)。於外框23之側面，設置有對上部外殼21已關閉之情況進行檢測之感測器S。於藉由該感測器S未檢測到上部外殼21已關閉之情形時，噴射加工裝置1不作動。即，無法於噴射加工室R打開之狀態下將噴射材料自噴射加工用噴嘴10噴射。因此，作業人員之安全性提高。於噴射加工室R，固定有於進行噴射加工時可載置工件之加工板26。於加工板26，設置有複數個開口，該複數個開口可供包含噴射材料之粉粒體朝向底部通過。分級機構30亦可以使縱型之旋風分離分級機位於噴射加工用噴嘴10之下部之方式配置，但於本實施形態中使用如圖4所示之構成之分級機構30。圖4係用以對圖2所示之分級機構30進行說明之模式圖。圖4(A)為側面圖，圖4(B)為表示圖4(A)中之A-A剖面之模式圖。如圖4所示，向本實施形態之分級機構30，自下部外殼22供給包含噴射材料之粉粒體。分級機構30例如具備兩端開口之圓筒狀之整流構件31、大致箱狀之分級構件32、圓筒狀之抽吸構件33及矩形筒狀之投入構件34。圓筒狀之整流構件31之軸線(中心軸)沿水平方向(X方向)延伸。整流構件31之一端面(於圖4(B)中為右側之端面)係藉由環狀之封閉板31a及下述抽吸構件33而封閉。於整流構件31之下端，連接有投入構件34。藉此，粉粒體經由投入構件34供給至整流構件31之內部。整流構件31之另一端(於圖4(B)中為左側之端面)連接於分級構件32之上部。藉此，整流構件31之內部與分級構件32之內部連通。箱狀之分級構件32具有上部及寬度較上部短小之下部，該上部自正面方向(Y軸之正方向)觀察呈縱長之四邊形，自側面方向(X方向)觀察呈圓形。更詳細而言，分級構件32之上部之自裝置側面方向(圖4(A)之視點(X方向))觀察之縱剖面為整流構件31之直徑以上之圓形。分級構件32以相對於整流構件31之軸線成直角之方式連接於該整流構件31之另一端。分級構件32之下部以間隔自上端朝向下端變窄之方式延伸。即，分級構件32之下部之橫截面之面積朝向下端連續地縮小。分級構件32之側面下端部開口。於分級構件32之底部固定有儲存進料斗50。圓筒形狀之抽吸構件33之軸線(中心軸)沿水平方向(X方向)延伸。抽吸構件33之外徑小於整流構件31之內徑。抽吸構件33配置於整流構件31之內部。抽吸構件33與整流構件31呈同心狀配置。從而，藉由整流構件31及抽吸構件33，形成雙重圓筒構造。抽吸構件33之一端部(於圖4(B)中為右側之端部)連接於環狀之封閉板31a之開口部。抽吸構件33之一端部連接於抽吸機構40。若使抽吸機構40作動，則由抽吸構件33對整流構件31及分級構件32之空間進行抽吸，因而外氣及包含噴射材料之粉粒體自投入構件34被抽吸至分級機構30內。被投入之外氣藉由來自抽吸構件33之抽吸力而朝向分級構件32。此處，如圖4(A)所示，投入構件34係以其下端面34a相對於整流構件31之圓周內壁面成為切線之方式設置。藉此，被抽吸之外氣以沿整流構件31之內壁朝向分級構件32之方式呈螺旋狀於整流構件31之內壁面及抽吸構件33之外壁面上所形成之流路(整流部31b)流動。包含噴射材料之粉粒體借勢於該氣流而朝向分級構件32移送。再者，投入構件34亦可以其上端面34b之延長假想線相對於抽吸構件33之圓周外壁面成為切線之方式設置。於該情形時，被抽吸之外氣亦於整流部31b以沿抽吸構件33之外壁朝向分級構件32之方式呈螺旋狀流動，包含噴射材料之粉粒體借勢於該氣流而移送。已通過整流部31b之包含噴射材料之粉粒體進而一面回旋一面繼續前進而到達分級構件32。然後，一面繼續回旋一面減速地進而繼續前進(圖4(B)中之箭頭「a」)。於減速時，作為較重粒子之可再使用之噴射材料藉由重力下落至分級構件32之底部，堆積於儲存進料斗50(同圖中之箭頭「b」)。另一方面，作為較輕粒子之不可再使用之噴射材料及噴射加工中所產生之切削粉(對該等進行統稱，以後記作「粉塵」)被抽吸構件33抽吸至抽吸機構40(同圖中之箭頭「c」)。此處，若整流部31b之長度或整流部31b之前端面(即，抽吸構件33之前端面，且圖4(B)中之左側剖面)至位於與該前端面對向之位置之分級構件32之壁面之長度過短，則分級效率降低。若整流部31b之長度超過必要程度地過短，則無法充分獲得供包含噴射材料之粉粒體回旋之力，故而於剛通過整流部31b之後便被自整流構件31之前端面抽吸。此時，可再利用之噴射材料亦被抽吸，故而分級效率降低。又，若整流部31b之前端面至位於與該前端面對向之位置之分級構件32之壁面之長度超過必要程度地過短，則噴射材料未得到充分減速，與壁面發生碰撞而反彈，到達抽吸構件33附近之可再利用之噴射材料被自抽吸構件33之前端面抽吸，故而分級效率降低。另一方面，若整流部31b之長度或整流部31b之前端面至位於與該前端面對向之位置之分級構件32之壁面之長度超過必要程度地過長，則分級機構30本身大型化。因此，為獲得良好之分級效率，且避免分級機構30超過必要程度地大型化，亦可於1.25～1.75之範圍內設定整流部31b之前端面至位於與該前端面對向之位置之分級構件32之壁面之長度L2相對於整流部31b之長度L1之比(L2/L1)。於整流部31b中，若整流構件31之直徑相對於抽吸構件33之直徑過小則整流部31b之空間會過窄而妨礙包含噴射材料之粉粒體之通過。其結果，於整流部31b中，包含噴射材料之粉粒體朝著分級構件32前進之速度變慢，於剛通過整流部31b之後便被自抽吸構件33之前端面抽吸。此時，可再利用之噴射材料亦被抽吸，故而分級效率降低。因此，必須以成為可供包含噴射材料之粉粒體良好地通過之大小之方式擴大整流構件31之直徑，但若過大則分級機構30大型化。又，若抽吸構件33之直徑過小則抽吸速度變得過慢，可再使用之噴射材料亦被抽吸，故而分級效率降低。於抽吸構件33之直徑過大之情形時，如上所述必須擴大整流構件31之直徑，故而分級機構30大型化。因此，為獲得良好之分級效率，且避免分級機構30超過必要程度地大型化，亦可於1.5～2.0之範圍內設定整流構件31之直徑D2相對於抽吸構件33之直徑D1之比(D2/D1)。若整流部31b中之風量過慢，則包含噴射材料之粉粒體之速度變得過慢，於剛通過整流部31b之後便會被自抽吸構件33之前端面抽吸。若風量過快，則包含噴射材料之粉粒體之速度變得過快，與分級構件32之壁面碰撞而反彈之包含噴射材料之粉粒體移動至抽吸構件33之前端附近。無論於哪種情形時，可再利用之噴射材料均會被抽吸，故而分級效率降低。因此，為獲得良好之分級效率，亦可以使整流部31b之前端之風量為2.1～3.6 m³ /min之方式進行調整。於本實施形態之分級機構30中，可將噴射加工中通常所使用之噴射材料良好地分級。噴射材料可列舉：鐵系及非鐵金屬系之珠狀物(shot)、切線狀物(cut wird)及粒狀物(grid)、陶瓷之粒子(例如，氧化鋁、碳化矽、鋯英石等)、玻璃之粒子、樹脂之粒子(例如，尼龍樹脂、三聚氰胺樹脂、尿素樹脂等)、植物種子之粒子(例如，核桃、桃子等)等。結合該等噴射材料之比重，適當選擇其粒子徑。例如，於比重為1.1～4.0之噴射材料(氧化鋁質之粒子、玻璃顆粒、尼龍、核桃等)之情形時，可自45～850 μm之範圍選擇粒子徑，於比重為7.2～7.9之噴射材料(鐵系之珠狀物等)之情形時可自45～500 μm之範圍選擇粒子徑。分級構件32並不限定於本實施形態之形狀，亦可設定為圓筒形狀或多角形之筒形狀。又，亦可如本實施形般，具有朝向下端連續地縮小橫截面之面積之部分。本實施形態之分級機構30較如縱型之旋風分離型分級機之先前之噴射加工裝置中所使用之分級機小型。因此，可使噴射加工裝置整體小型化。抽吸機構40具備：抽吸機構本體41，其係密閉之箱體；及抽吸力產生源42，其連接於抽吸機構本體41。抽吸機構本體41連接於分級機構30，於位於抽吸構件33與抽吸力產生源42之路徑之抽吸機構本體41內，配置有用以捕獲粉塵之過濾器(未圖示)。若使抽吸力產生源42作動，則分級機構30內之粉塵與空氣一併抽吸至抽吸機構本體41。被抽吸之粉塵於朝向抽吸力產生源42進而移送時，被過濾器捕獲，僅空氣移送至抽吸力產生源42。被捕獲之粉塵可藉由作業人員經由開口部23a接近設置於抽吸機構本體41之前面之開閉扉41a，打開開閉扉41a，卸下過濾器而回收。再者，抽吸力產生源42之作動之切換係藉由配置於外框23之前面之操作面板P之操作而進行。圖5係對圖2所示之儲存進料斗及噴射材料移送機構進行說明之模式圖。儲存進料斗50如圖5所示，上端固定於分級機構30之分級構件32之底部。儲存進料斗50係其內部之空間與分級機構30連通之箱狀。儲存進料斗50之底部設置有噴射材料排出構件51，於噴射材料排出構件51之下端設置有用以將儲存進料斗50內之噴射材料排出之開口。於該開口，嵌著有封閉栓52。本實施形態之封閉栓52呈由橡膠構成之圓錐梯形狀。於更換噴射加工中所使用之噴射材料時，只要卸下該封閉栓52將噴射材料取出，然後再次嵌著封閉栓52即可。為將貯存於儲存進料斗50之噴射材料移送至噴射加工用噴嘴10，於儲存進料斗50配置有噴射材料之噴射材料移送機構60。噴射材料移送機構60如圖5所示，具備圓管狀之噴射材料取出管61、圓管狀之外氣導入管安裝構件62及外氣導入管63。噴射材料取出管61係以其後端61a貫通儲存進料斗50之側壁50a(第1側面)(於圖5中為左側壁、Y軸之負方向)之方式固定。外氣導入管安裝構件62係以貫通儲存進料斗50之與噴射材料取出管61對向之側壁50b(第2側面)(於圖5中為右側壁、Y軸之正方向)之方式固定。外氣導入管63係插通於外氣導入管安裝構件62而固定。外氣導入管63係以其前端63a位於噴射材料取出管61之中之方式固定。噴射材料取出管61連接於噴射加工用噴嘴10之噴射材料抽吸口11a。藉由於噴射加工用噴嘴10之內部產生之抽吸力，於噴射材料取出管61內產生朝向該噴射加工用噴嘴10之氣流。此時，自外氣導入管63抽吸外氣。即，於外氣導入管63之前端形成外氣流噴射之狀態。藉由該氣流，於噴射材料取出管61之右端附近產生朝向噴射材料抽吸口11a之氣流。儲存進料斗50內之噴射材料借勢於該氣流，抽吸至噴射材料取出管61，並移送至噴射加工用噴嘴10。外氣導入管63只要至少其前端63a位於噴射材料取出管61之中即可。因此，外氣導入管63亦可設定為其外徑小於噴射材料取出管61之內徑之圓管。或者，外氣導入管63亦可設定為其外徑大於噴射材料取出管61之內徑，且設置有其前端63a以小於噴射材料取出管61之內徑之方式連續地縮徑之部位之形狀。於後者之構成中，藉由調整外氣導入管63之左右位置，可調整外氣導入管63之外壁與噴射材料取出管61之內壁之間隙。藉由變更該間隙之大小，可變更抽吸至噴射材料取出管61之噴射材料之量。若該間隙過寬，則無法穩定地將噴射材料抽吸至噴射材料取出管61，故而來自噴射加工用噴嘴10之噴射量不穩定。即無法進行穩定之噴射加工。又，若該間隙過窄，則阻礙噴射材料通過該間隙。藉由該間隙之調整，可調整移送至噴射加工用噴嘴10之噴射材料之量(噴射材料相對於壓縮空氣之混合比)，故而可藉由操作外氣導入管63，來調整噴射加工之能力。如上所述，分級機構30、抽吸機構40、儲存進料斗50與先前之噴射加工裝置相比較小型，故而可以內包於外框23之方式配置於基台70上。又，可藉由噴射材料移送機構60穩定地移送至噴射加工用噴嘴10，故而可進行穩定之噴射加工。其結果，形成小型化且可穩定地進行噴射加工之構成。又，於基台70，如圖1(A)所示，可固定有縱剖面呈コ字狀之加高基底71。於設置噴射加工裝置時，藉由加高基底71可容易地利用堆高機等移動該噴射加工裝置。 (噴射加工方法) 其次，對藉由本實施形態之噴射加工裝置1而實施之噴射加工方法進行說明。圖6係對圖1所示之噴射加工裝置之噴射加工方法進行說明之流程圖。如圖6所示，對操作面板P進行操作，使抽吸機構40作動，對噴射加工室R內進行抽吸(S10：抽吸步驟)。其次，解開閂鎖25，打開上部外殼21(S12)。其次，將特定量之噴射材料投入至噴射加工室R，經由分級機構30移送至儲存進料斗50(S14)。其後，關閉上部外殼21，藉由閂鎖25進行鎖定而將上部外殼21與下部外殼22固定(S16)。藉此，形成作為封閉空間之噴射加工室R。噴射加工室R因受到抽吸機構40抽吸故成為負壓，外氣自作業部21c流入至噴射加工室R內。作業人員戴上手套，自作業部21c將手***，握持噴射加工用噴嘴10。其次，使上述腳踏開關「ON」，將包含噴射材料之氣固兩相流自噴射口13a噴射。此時，操作配置於噴射加工裝置1之前面之壓力調整閥V，以使其成為特定之噴射壓力之方式利用配置於噴射加工裝置1之前面之壓力計一面確認一面調整，之後使上述腳踏開關「OFF」而停止噴射材料之噴射，將手拔出(S18)。其次，解開閂鎖25，打開上部外殼21(S20)，將工件(被加工物)載置於加工板26上(S22)。其後，關閉上部外殼21，藉由閂鎖25進行鎖定而將上部外殼21與下部外殼22固定(S24)。對操作面板P進行操作，作業人員自作業部21c將手***而握持噴射加工用噴嘴10及工件，之後使腳踏開關「ON」，將氣固兩相流自噴射口13a噴射(S26：噴射步驟)。然後，介隔手套，由作業人員親自將工件對著噴射口13a進行掃描，藉此進行工件之研磨(S28：研磨步驟)。此時，噴射加工室R內成為負壓，故而包含噴射材料之粉粒體(噴射材料及粉塵)不會自噴射加工室R漏出至外部。噴射加工之情況可自設置於前面側斜面之觀察窗21a進行觀察。又，於頂面設置有採光窗21b，故而即便於噴射加工室R內不設置投光機亦可觀察到噴射加工室R。於執行S26及S28之處理中，進行分級步驟。圖7係對圖1所示之噴射加工裝置之分級步驟進行說明之流程圖。自噴射口13a噴射之包含噴射材料之粉粒體藉由抽吸機構40之抽吸力而移送至分級機構30。於分級機構30中，分離成可再使用之噴射材料與粉塵。詳細而言，藉由抽吸機構40之抽吸力，分級機構30內成為負壓，又，於整流部31b產生一面回旋一面朝向分級構件32之氣流(S40)。首先，藉由該負壓，包含噴射材料之粉粒體自投入構件34投入至分級機構30內(S42)。到達整流部31b之包含噴射材料之粉粒體藉由整流部31b中所產生之氣流，一面回旋一面朝著分級構件32前進(S44)。然後，到達分級構件32之噴射材料中，重量較重之可再使用之噴射材料藉由重力而下落，貯存於位於下方之儲存進料斗50(S46)。移送至儲存進料斗50之可再使用之噴射材料藉由噴射材料移送機構60移送至噴射加工用噴嘴10，再次自噴射口13a噴射。另一方面，重量較輕之粉塵被抽吸至抽吸機構40，並被捕獲於抽吸機構本體41內之過濾器(S48)。至此完成圖7所示之流程圖。返回至圖6，於向工件噴射氣固兩相流特定之時間之後，使上述腳踏開關「OFF」，停止氣固兩相流之噴射，將手拔出。其後，解開閂鎖25，打開上部外殼21，回收工件(S30、S32)。除去附著於該工件之噴射材料及粉塵，圖6所示之一系列噴射加工完成。若捕獲於抽吸機構本體41內之過濾器之粉塵堆積有特定量而導致抽吸能力降低，則停止氣固兩相流之噴射及抽吸機構40之作動，之後作業人員經由外框23之開口部23a接近位於噴射加工裝置1之前面之開閉扉41a，打開開閉扉41a卸下過濾器，而進行過濾器之清掃。粉塵之堆積狀況亦可於抽吸機構本體41安裝差壓計，而藉由其值進行管理，亦可設定為於1日之作業結束之後，進行過濾器之清掃之程度之管理。於為變更噴射材料、或清掃噴射加工裝置1而必須將噴射材料自噴射加工裝置1排出之情形時，於上部外殼21及下部外殼22固定之狀態下，作業人員經由外框23之開口部23a接近封閉栓52，卸下封閉栓5，將儲存進料斗50內之噴射材料排出，然後再次將封閉栓52嵌著於噴射材料排出構件51之開口。然後，將噴射壓縮空氣之噴嘴(未圖示)自作業部21c***，進行因空氣流而附著於噴射加工室R內之噴射材料及粉塵之除去、以及噴射材料從利用上述腳踏開關自噴射加工用噴嘴10噴射之噴射材料之路徑之除去。藉由重複該作業，可將噴射加工裝置1內之噴射材料完全排出。其次，對檢驗本形態之噴射加工裝置1所得之結果進行說明。作為噴射材料，使用氧化鋁系之粒子(新東工業股份有限公司製造：AF24)，作為類粉塵，使用氧化鋁系之微粒子(新東工業股份有限公司製造：WA＃800)。將以98%噴射材料、2%類粉塵之方式稱重並混合所得之粉粒體作為初始之粉粒體，並收容於儲存進料斗50，之後使噴射加工裝置1作動10 min，噴射該粉粒體。於停止噴射加工裝置1之作動之後，將儲存進料斗50內之粉粒體回收。於利用網眼為0.500 mm之篩將回收之粉粒體分級之後，對大徑粒子及微粒子各者之重量進行測定，算出以下內容而進行評價。 (1)試驗後之大徑粒子之重量相對於初始之粉粒體之重量之比例 (2)試驗後之微粒子之重量相對於試驗後之粉粒體之總重量之比例評價標準如下所述。 ○・・・(1)為95%以上，且(2)未達1%。 △・・・(1)為95%以上，且(2)多於1%但未達5%。 ×・・・(1)未達95%，或(2)為5%以上。試驗係使整流部31b之前端面至位於與該前端面對向之位置之分級構件32之壁面之長度L2相對於整流部31b之長度L1之比(L2/L1)、及整流構件31之直徑D2相對於抽吸構件33之直徑D1之比(D2/D1)、以及整流部31b中之風量分別變化。將其結果記錄於表1中。 [表1]

整流部31b之前端面至位於與該前端面對向之位置之分級構件32之壁面之長度L2相對於整流部31b之長度L1之比(L2/L1)為1.25～1.75，整流構件31之直徑D2相對於抽吸構件33之直徑D1之比(D2/D1)為1.50～2.00，及整流部31b中之風量為2.1～3.6 m³ /min之情形均為「△」或「○」評價(實施例1～8)。L2/L1或D2/D1相對較低之實施例1及4為「△」評價，該評價表示雖然分級性能稍差但只要將條件最佳化便達到「○」評價之程度。因此，提示其可充分適用於噴射加工裝置。另一方面，風量不脫離2.1～3.6 m³ /min之情形均為「×」評價，判明分級性能較差(比較例1、2)。 [產業上之可利用性] 如上所述，可提供一種小型化且能穩定地進行噴射加工、操作性優異之噴射加工裝置及噴射加工方法。An example of the jet processing apparatus of this embodiment will be described using drawings. The present invention is not limited to this embodiment, and changes, corrections, and improvements can be added without departing from the scope of the invention. In addition, the "up, down, left, and right directions" in the following description refers to the directions in the figure unless otherwise specified. "Up and down" is the Z direction in the figure, "Left and Right" is the X direction in the figure, the depth direction is the positive direction of the Y axis in the figure, and the front direction is the negative direction of the Y axis in the figure. The jet processing apparatus 1 of this embodiment is shown in FIG.1 and FIG.2. FIG. 1 is a schematic diagram showing the appearance of the jet processing apparatus 1 of this embodiment. Fig. 1(A) is a front view, Fig. 1(B) is a right side view, and Fig. 1(C) is a rear view. Fig. 2 is a schematic diagram showing the AA section in Fig. 1(A). The jet processing apparatus 1 includes, for example, a jet processing nozzle 10, a housing 20, a classification mechanism 30, a suction mechanism 40, a storage hopper 50, a jet material transfer mechanism 60, and a base 70 forming a bottom surface. The nozzle 10 for jet processing is a so-called suction type. The jet processing nozzle 10 is arranged in the jet processing chamber R described below, and jets the jet material together with compressed air. Fig. 3 is a schematic diagram (partial cross-sectional view) for explaining the jet processing nozzle shown in Fig. 2. As shown in FIG. 3, the nozzle 10 for jet processing is equipped with the nozzle holder 11, the cylindrical air nozzle 12, and the cylindrical jet nozzle 13, for example. The nozzle holder 11 is formed with a mixing chamber 11c in which compressed air and spray material are mixed. The nozzle holder 11 has three openings communicating with the mixing chamber 11c. For example, the nozzle holder 11 has a spray material suction port 11a, an air nozzle insertion port 11d, and a spray nozzle insertion port 11e. The centers of the air nozzle insertion port 11d and the jet nozzle insertion port 11e are coaxial. The ejection material suction port 11a is formed to face a direction crossing the direction in which the air nozzle insertion port 11d and the ejection nozzle insertion port 11e are arranged. The ejection material suction port 11a is used to input (suction) ejection material to the opening inside the nozzle holder 11. The ejection material suction port 11 a communicates with a path 11 b formed inside the nozzle holder 11. The path 11b communicates with the mixing chamber 11c. The air nozzle 12 is inserted and fixed to the air nozzle insertion port 11d (one end side of the nozzle holder 11 (upper end surface side in FIG. 3)). The jet nozzle 13 is inserted into and fixed to the jet nozzle insertion port 11e (the other end side of the nozzle holder 11). The air nozzle 12 and the jet nozzle 13 are arranged in such a way that the center lines of the cross sections of each are substantially on the same line. The inner surface of the nozzle holder 11 and the spray nozzle 13 divides the inside of the nozzle holder 11 to form a mixing chamber 11c. The air nozzle 12 is a nozzle for injecting compressed air into the nozzle holder 11. The compressed air path 12a has an accelerating part 12b for accelerating the flow rate of the compressed air. The air nozzle 12 is connected to a compressor not shown. The spray nozzle 13 is a nozzle used to spray the compressed air and spray material mixed in the mixing chamber 11c as a gas-solid two-phase flow from the spray port 13a. The path of the gas-solid two-phase flow is formed by the accelerating part 13c that continuously reduces the diameter from the end face of the nozzle holder 11 toward the front end, and the rectifying part 13d that rectifies the flow of the gas-solid two-phase flow that has passed through the accelerating part 13c. form. If compressed air is injected into the nozzle by the air nozzle 12, a suction force is generated inside the nozzle holder 11, that is, the mixing chamber 11c. Since the magnitude of the suction force varies depending on the distance between the front end of the air nozzle 12 and the inner wall surface of the jet nozzle 13, the air nozzle 12 is adjusted in the up and down direction so as to achieve the best suction force, and by The bolts shown in the figure fix the air nozzle 12 to the nozzle holder 11. The spray material put in (suction) from the spray material suction port 11a passes through the path 11b and is transferred to the mixing chamber 11c. The spray material reaching the mixing chamber 11c is mixed with compressed air. The mixed compressed air and spray material pass through the path 13b and are sprayed from the spray port 13a. The adjustment of the injection pressure from the injection nozzle 13 is performed by a pressure adjustment valve V arranged on the front surface of the outer frame 23 described below. The pressure regulating valve V is installed in the path from the external air compressor (not shown) to the air nozzle 12. When spraying from the spray nozzle 13, the pressure of the pressure gauge connected to the pressure regulating valve V points to a specific pressure, and the pressure of the compressed air is regulated by the pressure regulating valve V. Furthermore, on the way of the path, a solenoid valve E and a foot switch (not shown) connected to the solenoid valve E are further provided. With the foot switch, the solenoid valve E can be switched on and off, that is, compression Whether air is supplied to the air nozzle 12 or not. As shown in FIGS. 1 and 2, the housing 20 includes, for example, an upper housing 21, a lower housing 22, and an outer frame 23 fixed to the lower housing 22. The casing 20 divides and forms a spray processing chamber R inside. Specifically, the injection processing chamber R is divided and formed inside the upper housing 21 and the lower housing 22. The upper housing 21 has, for example, a box shape with an open bottom surface. The shape of the opening is, for example, a quadrilateral. The upper housing 21 is one of the members that divide and form the injection processing chamber R. Specifically, the upper housing 21 has a top surface and a bottom surface that face each other in parallel with the base 70, and four side surfaces (left and right side faces, front and back faces that face each other in parallel) that are vertically erected with respect to the bottom surface. And the inclined plane which connects the top surface with the front and back. An observation window (monitoring window) 21a for observing the inside of the jet processing chamber R is provided on the inclined surface on the front side of the upper housing 21. In addition, a lighting window 21b is provided on the top surface of the upper housing 21 to capture external light to the inside of the jet processing chamber R. The observation window 21a and the daylighting window 21b are formed by, for example, inserting a visible plate member formed of quartz glass or the like into a window frame member. In addition, a working portion 21c is provided on the front surface of the upper casing 21. The working part 21c communicates with the opening of the jet processing chamber R. The working part 21c has both a suction port for extracting outside air when sucking in the jet processing chamber R, and an opening for the operator to put his hands into the jet processing chamber R during jet processing . In this embodiment, a rubber plate provided with a plurality of notches radially from the center is fixed to the working part 21c. The lower housing 22 has, for example, an inverted conical trapezoid with an open upper end surface. The lower housing 22 is one of the members that divide and form the injection processing chamber R. The lower housing 22 has an upper end surface slightly larger than the bottom surface of the upper housing 21, and has a shape in which the cross-sectional area continuously decreases toward the bottom surface. On the upper end of the lower housing 22, a housing 22a for inserting the lower end of the upper housing 21 is erected. In addition, to the lower end of the lower housing 22, an input member 34 described below is connected, and the injection processing chamber R and the classification mechanism 30 are connected via the input member 34. The outer frame 23 has, for example, a box shape with open upper and lower end surfaces. The shape of the opening is, for example, a quadrilateral. The outer frame 23 is erected on the base 70. The upper end of the outer frame 23 is fixed to the housing 22 a of the lower housing 22. That is, the outer frame 23 separates the lower housing 22 from the base 70 and supports it. The outer frame 23 can fix the lower housing 22 in such a way that the lower housing 22 has a specific height relative to the base 70. Openings (notches) 23a and 23b are provided on the front surface and the lower part of the back surface of the outer frame 23, respectively. The opening 23a on the front side of the outer frame 23 is as follows, and can be used for maintenance of the classification mechanism 30, the suction mechanism 40, the storage hopper 50, or the ejection material transfer mechanism 60 for the operator to access these components. use. The opening 23b on the back side of the outer frame 23 can exhaust the air sucked by the suction mechanism 40 and dissipate the heat generated in the suction mechanism 40. Furthermore, on the back of the outer frame 23, a hinge 24 is provided in such a way that the lower end of the back of the upper housing 21 is connected to the upper end of the back of the outer frame 23 (ie, the lower housing 22). Thereby, the upper housing 21 is installed so as to be rotatable with the lower end of the back surface as the center. More specifically, the upper housing 21 can rotate around the hinge 24. By the rotation of the upper housing 21, the spray processing chamber R can be opened or closed in front of the spray processing device 1. In addition, a latch 25 is provided on the front surface of the outer frame 23. The upper housing 21 and the outer frame 23 (ie, the lower housing 22) are fixed by the latch 25. On the side of the outer frame 23, a sensor S for detecting that the upper housing 21 has been closed is provided. When the sensor S does not detect that the upper casing 21 is closed, the jet processing device 1 does not operate. That is, the spray material cannot be sprayed from the nozzle 10 for spray processing with the spray processing chamber R opened. Therefore, the safety of the workers is improved. In the jet processing chamber R, a processing plate 26 that can place a workpiece during jet processing is fixed. The processing plate 26 is provided with a plurality of openings, and the plurality of openings can allow the powder and granules containing the spray material to pass toward the bottom. The classification mechanism 30 can also be arranged such that the vertical cyclone separation classifier is located under the nozzle 10 for jet processing. However, in this embodiment, the classification mechanism 30 having the configuration shown in FIG. 4 is used. FIG. 4 is a schematic diagram for explaining the classification mechanism 30 shown in FIG. 2. Fig. 4(A) is a side view, and Fig. 4(B) is a schematic view showing the AA cross section in Fig. 4(A). As shown in FIG. 4, to the classification mechanism 30 of this embodiment, the powder or granule containing the spray material is supplied from the lower casing 22. The classification mechanism 30 includes, for example, a cylindrical rectifying member 31 with open ends, a substantially box-shaped classification member 32, a cylindrical suction member 33, and a rectangular cylindrical input member 34. The axis (central axis) of the cylindrical rectifying member 31 extends in the horizontal direction (X direction). One end surface of the rectifying member 31 (the end surface on the right side in FIG. 4(B)) is closed by an annular closing plate 31a and a suction member 33 described below. An input member 34 is connected to the lower end of the rectifying member 31. Thereby, the powder or granular material is supplied to the inside of the rectifying member 31 via the input member 34. The other end of the rectifying member 31 (the end surface on the left side in FIG. 4(B)) is connected to the upper part of the grading member 32. Thereby, the inside of the rectifying member 31 communicates with the inside of the classifying member 32. The box-shaped grading member 32 has an upper part and a lower part whose width is shorter than that of the upper part. The upper part is a long quadrilateral when viewed from the front direction (positive direction of the Y-axis) and a circular shape when viewed from the side direction (X direction). In more detail, the longitudinal section of the upper part of the grading member 32 viewed from the side of the device (the viewing point (X direction) in FIG. 4(A)) is a circle with the diameter of the rectifying member 31 or more. The grading member 32 is connected to the other end of the rectifying member 31 at a right angle with respect to the axis of the rectifying member 31. The lower part of the classification member 32 extends so that the interval becomes narrower from the upper end toward the lower end. That is, the cross-sectional area of the lower part of the classification member 32 continuously decreases toward the lower end. The lower end of the side surface of the classification member 32 is open. A storage hopper 50 is fixed at the bottom of the classification member 32. The axis (central axis) of the cylindrical suction member 33 extends in the horizontal direction (X direction). The outer diameter of the suction member 33 is smaller than the inner diameter of the rectifying member 31. The suction member 33 is arranged inside the rectifying member 31. The suction member 33 and the rectifying member 31 are arranged concentrically. Thus, the rectifying member 31 and the suction member 33 form a double cylindrical structure. One end of the suction member 33 (the end on the right in FIG. 4(B)) is connected to the opening of the ring-shaped closing plate 31a. One end of the suction member 33 is connected to the suction mechanism 40. When the suction mechanism 40 is actuated, the space between the rectifying member 31 and the classification member 32 is sucked by the suction member 33, so that the outside air and the powder and granular material containing the injection material are sucked from the input member 34 to the classification mechanism 30 Inside. The injected external air is directed toward the classification member 32 by the suction force from the suction member 33. Here, as shown in FIG. 4(A), the input member 34 is installed so that its lower end surface 34a becomes a tangent to the circumferential inner wall surface of the rectifying member 31. Thereby, the sucked external air is spirally formed on the inner wall surface of the rectifying member 31 and the outer wall surface of the suction member 33 (rectifying part 31b) Flow. The powder or granule containing the spray material is transferred toward the classification member 32 by the air flow. Furthermore, the input member 34 may also be arranged in such a manner that the imaginary line of extension of the upper end surface 34b becomes a tangent line with respect to the circumferential outer wall surface of the suction member 33. In this case, the sucked external air also flows in a spiral shape at the rectifying portion 31b along the outer wall of the suction member 33 toward the grading member 32, and the powder and granule containing the spray material are transferred by the air flow. The powder or granular material containing the injection material that has passed through the rectifying portion 31b continues to advance while swirling and reaches the classification member 32. Then, while continuing to whirl, slow down and move on (arrow "a" in Figure 4(B)). When decelerating, the reusable spray material as heavier particles falls to the bottom of the classification member 32 by gravity, and is accumulated in the storage hopper 50 (arrow "b" in the same figure). On the other hand, the spray material that is not reusable as lighter particles and the cutting powder generated in the spray process (collectively referred to as "dust" hereinafter) are sucked by the suction member 33 to the suction mechanism 40 (Same as the arrow "c" in the figure). Here, if the length of the rectifying portion 31b or the front end surface of the rectifying portion 31b (ie, the front end surface of the suction member 33, and the left side cross-section in FIG. 4(B)) to the grading member 32 at a position facing the front end If the length of the wall is too short, the classification efficiency will be reduced. If the length of the rectifying portion 31b is too short than necessary, the powder or granule containing the spray material cannot be sufficiently circulated, so it is sucked from the front end surface of the rectifying member 31 immediately after passing through the rectifying portion 31b. At this time, the reusable spray material is also sucked, so the classification efficiency is reduced. In addition, if the length from the front end surface of the rectifying portion 31b to the wall surface of the classification member 32 at the position facing the front end is too short than necessary, the injection material is not sufficiently decelerated and collides with the wall surface and rebounds to reach the pump The reusable ejection material near the suction member 33 is sucked from the front end surface of the suction member 33, so the classification efficiency is reduced. On the other hand, if the length of the rectifying portion 31b or the length from the front end surface of the rectifying portion 31b to the wall surface of the classifying member 32 at a position facing the front end is too long, the classifying mechanism 30 itself will be enlarged. Therefore, in order to obtain good classification efficiency and prevent the classification mechanism 30 from becoming larger than necessary, it is also possible to set the front end surface of the rectifying portion 31b to the classification member 32 at a position facing the front end within the range of 1.25 to 1.75 The ratio of the length L2 of the wall surface to the length L1 of the rectifying portion 31b (L2/L1). In the rectifying part 31b, if the diameter of the rectifying member 31 is too small with respect to the diameter of the suction member 33, the space of the rectifying part 31b will be too narrow to prevent the passage of the powder and granule containing the injection material. As a result, in the rectifying part 31b, the speed at which the powder or granular body containing the injection material advances toward the classification member 32 becomes slow, and is sucked from the front end surface of the suction member 33 just after passing through the rectifying part 31b. At this time, the reusable spray material is also sucked, so the classification efficiency is reduced. Therefore, it is necessary to enlarge the diameter of the rectifying member 31 so that the powder or granule containing the injection material can pass through well, but if it is too large, the classification mechanism 30 will increase in size. Moreover, if the diameter of the suction member 33 is too small, the suction speed becomes too slow, and the reusable ejection material is also sucked, so the classification efficiency is reduced. In the case where the diameter of the suction member 33 is too large, the diameter of the rectifying member 31 must be enlarged as described above, so the classification mechanism 30 is enlarged. Therefore, in order to obtain good classification efficiency and prevent the classification mechanism 30 from becoming larger than necessary, the ratio of the diameter D2 of the rectifying member 31 to the diameter D1 of the suction member 33 (D2) can be set within the range of 1.5 to 2.0. /D1). If the air volume in the rectifying part 31b is too slow, the speed of the powder particles containing the spray material becomes too slow, and will be sucked from the front end surface of the suction member 33 just after passing through the rectifying part 31b. If the air volume is too fast, the speed of the particles containing the spray material becomes too fast, and the particles containing the spray material that collide with the wall surface of the classification member 32 and rebound move to the vicinity of the front end of the suction member 33. In either case, the reusable spray material will be sucked, so the classification efficiency is reduced. Therefore, in order to obtain a good classification efficiency, it is also possible to adjust the air volume at the front end of the rectifying portion 31b to be 2.1 to 3.6 m ³ /min. In the classification mechanism 30 of this embodiment, the spray material generally used in spray processing can be classified well. Injecting materials include: shots, cut wirds and grids of iron and non-ferrous metals, ceramic particles (for example, alumina, silicon carbide, zircon) Etc.), particles of glass, particles of resin (for example, nylon resin, melamine resin, urea resin, etc.), particles of plant seeds (for example, walnuts, peaches, etc.), etc. Combining the specific gravity of the spray materials, select the particle diameter appropriately. For example, in the case of injection materials with a specific gravity of 1.1 to 4.0 (alumina particles, glass particles, nylon, walnuts, etc.), the particle diameter can be selected from the range of 45 to 850 μm, and the specific gravity is 7.2 to 7.9. In the case of materials (iron-based beads, etc.), the particle diameter can be selected from the range of 45 to 500 μm. The classification member 32 is not limited to the shape of this embodiment, and may be set to a cylindrical shape or a polygonal cylindrical shape. In addition, as in this embodiment, it may have a portion that continuously reduces the cross-sectional area toward the lower end. The classifying mechanism 30 of this embodiment is smaller than the classifier used in the previous jet processing device like the vertical cyclone separation classifier. Therefore, the entire spray processing device can be miniaturized. The suction mechanism 40 includes a suction mechanism main body 41 which is a sealed box, and a suction force generating source 42 which is connected to the suction mechanism main body 41. The suction mechanism body 41 is connected to the classification mechanism 30, and a filter (not shown) for capturing dust is arranged in the suction mechanism body 41 in the path between the suction member 33 and the suction force generating source 42. If the suction force generating source 42 is activated, the dust and air in the classification mechanism 30 are sucked to the suction mechanism body 41 together. When the sucked dust is transferred toward the suction force generating source 42, it is captured by the filter, and only air is transferred to the suction force generating source 42. The trapped dust can be recovered by the operator approaching the opening and closing door 41a provided on the front surface of the suction mechanism body 41 through the opening 23a, opening the opening and closing door 41a, and removing the filter. Furthermore, the switching of the operation of the suction force generating source 42 is performed by the operation of the operation panel P arranged in front of the outer frame 23. Fig. 5 is a schematic diagram illustrating the storage hopper and the injection material transfer mechanism shown in Fig. 2. As shown in FIG. 5, the storage hopper 50 has an upper end fixed to the bottom of the classification member 32 of the classification mechanism 30. The storage feed hopper 50 is a box-shaped space in which the internal space is connected with the classification mechanism 30. The bottom of the storage hopper 50 is provided with a spray material discharge member 51, and the lower end of the spray material discharge member 51 is provided with an opening for discharging the spray material in the storage hopper 50. A closing plug 52 is embedded in the opening. The closure plug 52 of this embodiment has a cone trapezoidal shape made of rubber. When replacing the injection material used in the injection process, it is only necessary to remove the closing plug 52 to take out the injection material, and then insert the closing plug 52 again. In order to transfer the spray material stored in the storage hopper 50 to the nozzle 10 for spray processing, the storage hopper 50 is equipped with a spray material transfer mechanism 60 for the spray material. As shown in FIG. 5, the injection material transfer mechanism 60 is provided with a circular tubular injection material extraction pipe 61, a circular tubular outer air introduction pipe mounting member 62, and an outdoor air introduction pipe 63. The ejection material take-out pipe 61 is fixed so that its rear end 61a penetrates the side wall 50a (first side surface) of the storage hopper 50 (the left side wall in FIG. 5, the negative direction of the Y axis). The external air introduction pipe mounting member 62 is fixed so as to penetrate through the side wall 50b (second side surface) (the right side wall in FIG. 5, the positive direction of the Y axis) of the storage hopper 50 opposite to the injection material extraction pipe 61. The outside air introduction pipe 63 is inserted into the outside air introduction pipe mounting member 62 and fixed. The external air introduction pipe 63 is fixed in such a way that its front end 63a is located in the ejection material extraction pipe 61. The injection material taking-out pipe 61 is connected to the injection material suction port 11a of the nozzle 10 for injection processing. The suction force generated inside the nozzle 10 for jet processing generates an air flow toward the nozzle 10 for jet processing in the jet material extraction pipe 61. At this time, the outside air is sucked from the outside air introduction pipe 63. That is, a state where the outside air is sprayed is formed at the front end of the outside air introduction pipe 63. With this airflow, an airflow toward the ejection material suction port 11a is generated near the right end of the ejection material extraction pipe 61. The spray material stored in the hopper 50 is sucked to the spray material taking-out pipe 61 by the airflow, and transferred to the nozzle 10 for spray processing. The external air introduction pipe 63 only needs to have at least its front end 63 a located in the ejection material extraction pipe 61. Therefore, the outside air introduction pipe 63 can also be a round pipe with an outer diameter smaller than the inner diameter of the ejection material extraction pipe 61. Alternatively, the outside air introduction pipe 63 may be set to have an outer diameter larger than the inner diameter of the ejection material extraction pipe 61, and a shape where the front end 63a is continuously reduced in diameter so as to be smaller than the inner diameter of the ejection material extraction pipe 61 . In the latter configuration, by adjusting the left and right positions of the external air introduction pipe 63, the gap between the outer wall of the external air introduction pipe 63 and the inner wall of the ejection material extraction pipe 61 can be adjusted. By changing the size of the gap, the amount of spray material sucked to the spray material extraction pipe 61 can be changed. If the gap is too wide, the ejection material cannot be sucked into the ejection material extraction pipe 61 stably, so the ejection amount from the ejection processing nozzle 10 is unstable. That is, stable spray processing cannot be performed. In addition, if the gap is too narrow, the spray material is prevented from passing through the gap. By adjusting the gap, the amount of spray material (mixing ratio of spray material to compressed air) transferred to the nozzle 10 for spray processing can be adjusted. Therefore, the ability of spray processing can be adjusted by operating the outside air introduction pipe 63 . As described above, the grading mechanism 30, the suction mechanism 40, and the storage hopper 50 are smaller than the previous jet processing device, so they can be arranged on the base 70 in a manner of being enclosed in the outer frame 23. In addition, the spray material transfer mechanism 60 can be stably transferred to the nozzle 10 for spray processing, so stable spray processing can be performed. As a result, the structure is reduced in size and can be stably sprayed. In addition, to the base 70, as shown in FIG. 1(A), a raised base 71 having a U-shaped longitudinal section can be fixed. When installing the jet processing device, by raising the base 71, the jet processing device can be easily moved by a stacker or the like. (Blasting method) Next, the blasting method implemented by the blasting apparatus 1 of this embodiment is demonstrated. FIG. 6 is a flowchart illustrating the spray processing method of the spray processing device shown in FIG. 1. As shown in FIG. 6, the operation panel P is operated, the suction mechanism 40 is actuated, and the inside of the jet processing chamber R is suctioned (S10: suction step). Next, the latch 25 is released, and the upper casing 21 is opened (S12). Next, a specific amount of spray material is put into the spray processing chamber R, and is transferred to the storage hopper 50 via the classification mechanism 30 (S14). After that, the upper housing 21 is closed, and the upper housing 21 and the lower housing 22 are fixed by locking by the latch 25 (S16). Thereby, a blasting chamber R as a closed space is formed. The jet processing chamber R is sucked by the suction mechanism 40 and becomes negative pressure, and external air flows into the jet processing chamber R from the working part 21c. The worker puts on his gloves, inserts his hand from the working part 21c, and holds the nozzle 10 for jet processing. Next, the above-mentioned foot switch is turned "ON" to eject a gas-solid two-phase flow containing the ejection material from the ejection port 13a. At this time, the pressure regulating valve V arranged on the front face of the jet processing device 1 is operated to make it a specific jet pressure using the pressure gauge arranged on the front face of the jet processing device 1 while checking and adjusting, and then the above-mentioned foot pedal Switch "OFF" to stop the spraying of the spray material, and pull out the hand (S18). Next, the latch 25 is unlocked, the upper housing 21 is opened (S20), and the workpiece (object to be processed) is placed on the processing plate 26 (S22). After that, the upper housing 21 is closed, and the upper housing 21 and the lower housing 22 are fixed by locking by the latch 25 (S24). By operating the operation panel P, the operator inserts his hand from the working part 21c to hold the jet processing nozzle 10 and the workpiece, and then turns the foot switch "ON" to jet a gas-solid two-phase flow from the jet port 13a (S26: Spraying step). Then, through the gloves, the worker personally scans the workpiece against the ejection port 13a, thereby grinding the workpiece (S28: grinding step). At this time, the inside of the injection processing chamber R becomes a negative pressure, so the particles (injection material and dust) containing the injection material do not leak from the injection processing chamber R to the outside. The spray processing can be observed from the observation window 21a provided on the front side slope. In addition, since the lighting window 21b is provided on the top surface, the blasting chamber R can be observed even if a projector is not installed in the blasting chamber R. In the process of executing S26 and S28, a classification step is performed. Fig. 7 is a flow chart explaining the classification steps of the jet processing device shown in Fig. 1. The powder or granule containing the spray material sprayed from the spray port 13 a is transferred to the classification mechanism 30 by the suction force of the suction mechanism 40. In the classification mechanism 30, it is separated into reusable spray materials and dust. In detail, due to the suction force of the suction mechanism 40, the inside of the classification mechanism 30 becomes negative pressure, and an air flow that swirls and faces the classification member 32 is generated in the rectifying portion 31b (S40). First, by the negative pressure, the powder and granular material containing the injection material is injected from the input member 34 into the classification mechanism 30 (S42). The powder or granular material containing the spray material that has reached the rectifying portion 31b is swirled while advancing toward the classification member 32 by the airflow generated in the rectifying portion 31b (S44). Then, among the spray materials reaching the grading member 32, the reusable spray materials with heavier weight fall by gravity and are stored in the storage hopper 50 located below (S46). The reusable spray material transferred to the storage hopper 50 is transferred to the spray processing nozzle 10 by the spray material transfer mechanism 60, and is sprayed from the spray port 13a again. On the other hand, the lighter dust is sucked to the suction mechanism 40, and is captured by the filter in the suction mechanism body 41 (S48). This completes the flowchart shown in Figure 7. Returning to Fig. 6, after spraying the gas-solid two-phase flow to the workpiece for a certain period of time, turn the foot switch "OFF" to stop the gas-solid two-phase flow injection and pull out the hand. After that, the latch 25 is released, the upper casing 21 is opened, and the workpiece is recovered (S30, S32). The spray material and dust attached to the workpiece are removed, and a series of spray processing shown in Figure 6 is completed. If the dust trapped in the filter in the suction mechanism body 41 accumulates in a certain amount and the suction capacity is reduced, stop the gas-solid two-phase flow injection and the operation of the suction mechanism 40, and then the operator passes through the outer frame 23 The opening 23a is close to the opening and closing door 41a located in front of the jet processing device 1, and the opening and closing door 41a is opened to remove the filter, and to clean the filter. The accumulation of dust can also be installed on the suction mechanism body 41 and managed by its value. It can also be set to manage the degree of cleaning of the filter after the end of the day's work. When the spray material must be discharged from the spray processing device 1 in order to change the spray material or clean the spray processing device 1, the operator passes through the opening 23a of the outer frame 23 while the upper housing 21 and the lower housing 22 are fixed. Approaching the closure plug 52, remove the closure plug 5, discharge the spray material stored in the hopper 50, and then embed the closure plug 52 in the opening of the spray material discharge member 51 again. Then, a nozzle (not shown) for injecting compressed air is inserted from the working part 21c, and the ejection material and dust attached to the injection processing chamber R due to the air flow are removed, and the ejection material is self-injected from the foot switch. The path of the spray material sprayed by the processing nozzle 10 is removed. By repeating this operation, the spray material in the spray processing device 1 can be completely discharged. Next, the results obtained by testing the jet processing apparatus 1 of this form will be described. As the spray material, alumina-based particles (manufactured by Shinto Industry Co., Ltd.: AF24) were used, and as the dust-like particles, alumina-based fine particles (manufactured by Shinto Industrial Co., Ltd.: WA#800) were used. The powder and granules obtained by weighing and mixing 98% spray material and 2% dust as the initial powder and granules are stored in the storage hopper 50, and then the spray processing device 1 is operated for 10 minutes to spray the powder Mitochondria. After the operation of the jet processing device 1 is stopped, the powder and granules stored in the hopper 50 are recovered. After classifying the recovered powder and granules with a sieve with a mesh of 0.500 mm, the weight of each of the large-diameter particles and the fine particles was measured, and the following were calculated and evaluated. (1) The ratio of the weight of the large-diameter particles after the test to the weight of the initial powder and granules (2) The evaluation criteria of the ratio of the weight of the fine particles after the test to the total weight of the powder and granules after the test are as follows. ○・・・(1) is 95% or more, and (2) is less than 1%. △・・・(1) is more than 95%, and (2) is more than 1% but less than 5%. ×・・・(1) less than 95%, or (2) more than 5%. The test is to make the ratio (L2/L1) of the length L2 from the front end of the rectifying part 31b to the wall surface of the grading member 32 at a position facing the front end to the length L1 of the rectifying part 31b (L2/L1), and the diameter D2 of the rectifying member 31 The ratio (D2/D1) to the diameter D1 of the suction member 33 and the air volume in the rectifying portion 31b change respectively. Record the results in Table 1. [Table 1]

The ratio (L2/L1) of the length L2 from the front end surface of the rectifying portion 31b to the wall surface of the grading member 32 at the position facing the front end to the length L1 of the rectifying portion 31b is 1.25 to 1.75, and the diameter D2 of the rectifying member 31 When the ratio (D2/D1) of the diameter D1 to the suction member 33 is 1.50～2.00, and the air flow in the rectifying part 31b is 2.1～3.6 m ³ /min, the evaluation is "△" or "○" (implementation Examples 1-8). Examples 1 and 4, which have relatively low L2/L1 or D2/D1, are evaluated as "△", which indicates that although the classification performance is slightly poor, it reaches the level of "○" as long as the conditions are optimized. Therefore, it is suggested that it can be fully applied to the jet processing device. On the other hand, all cases where the air volume does not deviate from 2.1 to 3.6 m ³ /min are evaluated as "×", and it is found that the classification performance is poor (Comparative Examples 1 and 2). [Industrial Applicability] As described above, it is possible to provide a spray processing device and a spray processing method that are downsized, can perform spray processing stably, and have excellent operability.

1‧‧‧噴射加工裝置 10‧‧‧噴射加工用噴嘴 11‧‧‧噴嘴保持器 11a‧‧‧噴射材料抽吸口 11b‧‧‧路徑(噴射材料) 11c‧‧‧混合室 11d‧‧‧空氣噴嘴***口 11e‧‧‧噴射噴嘴***口 12‧‧‧空氣噴嘴 12a‧‧‧路徑(壓縮空氣) 12b‧‧‧加速部(壓縮空氣) 13‧‧‧噴射噴嘴 13a‧‧‧噴射口 13b‧‧‧路徑(氣固兩相流) 13c‧‧‧加速部 13d‧‧‧整流部(氣固兩相流) 20‧‧‧殼體 21‧‧‧上部外殼 21a‧‧‧觀察窗 21b‧‧‧採光窗 21c‧‧‧作業部 22‧‧‧下部外殼 22a‧‧‧殼體 23‧‧‧外框 23a‧‧‧開口部 23b‧‧‧開口部 24‧‧‧鉸鏈 25‧‧‧閂鎖 26‧‧‧加工板 30‧‧‧分級機構 31‧‧‧整流構件 31a‧‧‧封閉板 31b‧‧‧整流部 32‧‧‧分級構件 33‧‧‧抽吸構件 34‧‧‧投入構件 34a‧‧‧投入構件之下端面 34b‧‧‧投入構件之上端面 40‧‧‧抽吸機構 41‧‧‧抽吸機構本體 41a‧‧‧開閉扉 42‧‧‧抽吸力產生源 50‧‧‧儲存進料斗 50a‧‧‧側壁(第1側面) 50b‧‧‧側壁(第2 側面) 51‧‧‧噴射材料排出構件 52‧‧‧封閉栓 60‧‧‧噴射材料移送機構 61‧‧‧噴射材料取出管 61a‧‧‧噴射材料取出管之後端 62‧‧‧外氣導入管安裝構件 63‧‧‧外氣導入管 63a‧‧‧外氣導入管之前端 70‧‧‧基台 71‧‧‧加高基底 a‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 b‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 c‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 D1‧‧‧抽吸構件之直徑 D2‧‧‧整流構件之直徑 E‧‧‧電磁閥 L1‧‧‧整流部之長度 L2‧‧‧整流部之前端面至分級構件之壁面之長度 P‧‧‧操作面板 R‧‧‧噴射加工室 S‧‧‧感測器 S10‧‧‧步驟 S12‧‧‧步驟 S14‧‧‧步驟 S16‧‧‧步驟 S18‧‧‧步驟 S20‧‧‧步驟 S22‧‧‧步驟 S24‧‧‧步驟 S26‧‧‧步驟 S28‧‧‧步驟 S30‧‧‧步驟 S32‧‧‧步驟 S40‧‧‧步驟 S42‧‧‧步驟 S44‧‧‧步驟 S46‧‧‧步驟 S48‧‧‧步驟 V‧‧‧壓力調整閥 X‧‧‧方向 Y‧‧‧方向 Z‧‧‧方向1‧‧‧Jet processing device 10‧‧‧Nozzle for jet processing 11‧‧‧Nozzle holder 11a‧‧‧Injection material suction port 11b‧‧‧Path (Injection material) 11c‧‧‧Mixing Room 11d‧‧‧Air nozzle insertion port 11e‧‧‧Injection nozzle insertion port 12‧‧‧Air nozzle 12a‧‧‧path (compressed air) 12b‧‧‧Acceleration part (compressed air) 13‧‧‧Jet nozzle 13a‧‧‧Injection port 13b‧‧‧Path (gas-solid two-phase flow) 13c‧‧‧Acceleration Department 13d‧‧‧rectifier part (gas-solid two-phase flow) 20‧‧‧Shell 21‧‧‧Upper shell 21a‧‧‧Observation window 21b‧‧‧Daylighting window 21c‧‧‧ Operations Department 22‧‧‧Lower shell 22a‧‧‧Shell 23‧‧‧Frame 23a‧‧‧Opening 23b‧‧‧Opening 24‧‧‧Hinge 25‧‧‧Latch 26‧‧‧Processing board 30‧‧‧Grading agency 31‧‧‧Rectifying component 31a‧‧‧Closed plate 31b‧‧‧rectifier 32‧‧‧Grading component 33‧‧‧Suction component 34‧‧‧Injecting components 34a‧‧‧The lower end of the input member 34b‧‧‧The upper end surface of the input member 40‧‧‧Suction mechanism 41‧‧‧Suction mechanism body 41a‧‧‧Open and close 42‧‧‧Source of suction 50‧‧‧Storage hopper 50a‧‧‧ side wall (1st side) 50b‧‧‧ side wall (2nd side) 51‧‧‧Injected material discharge member 52‧‧‧Sealing bolt 60‧‧‧Blasting material transfer mechanism 61‧‧‧Spray material removal tube 61a‧‧‧The rear end of the ejection material removal tube 62‧‧‧Outer air inlet pipe installation component 63‧‧‧External air inlet pipe 63a‧‧‧Front end of external air introduction pipe 70‧‧‧Abutment 71‧‧‧Higher base a‧‧‧The flow of air flow, spray material and dust in the classification mechanism b‧‧‧The flow of airflow, spray material and dust in the classification mechanism c‧‧‧Air flow, spray material and dust flow in the classification mechanism D1‧‧‧The diameter of the suction member D2‧‧‧The diameter of the rectifying member E‧‧‧Solenoid valve L1‧‧‧The length of the rectifier L2‧‧‧The length from the front end of the rectifier to the wall of the grading member P‧‧‧operation panel R‧‧‧Jet processing room S‧‧‧Sensor S10‧‧‧Step S12‧‧‧Step S14‧‧‧Step S16‧‧‧Step S18‧‧‧Step S20‧‧‧Step S22‧‧‧Step S24‧‧‧Step S26‧‧‧Step S28‧‧‧Step S30‧‧‧Step S32‧‧‧Step S40‧‧‧Step S42‧‧‧Step S44‧‧‧Step S46‧‧‧Step S48‧‧‧Step V‧‧‧Pressure regulating valve X‧‧‧direction Y‧‧‧ direction Z‧‧‧ direction

圖1係表示本實施形態之噴射加工裝置之外觀之模式圖。圖1(A)為前視圖，圖1(B)為右側面圖，圖1(C)為後視圖。圖2係表示圖1(A)中之A-A剖面之模式圖。圖3係用以對圖2所示之噴射加工用噴嘴進行說明之模式圖(部分剖視圖)。圖4係用以對圖2所示之分級機構進行說明之模式圖。圖4(A)為側面圖，圖4(B)為表示圖4(A)中之A-A剖面之模式圖。圖5係對圖2所示之儲存進料斗及噴射材料移送機構進行說明之模式圖。圖6係對圖1所示之噴射加工裝置之噴射加工方法進行說明之流程圖。圖7係對圖1所示之噴射加工裝置之分級步驟進行說明之流程圖。Fig. 1 is a schematic diagram showing the appearance of the jet processing apparatus of this embodiment. Fig. 1(A) is a front view, Fig. 1(B) is a right side view, and Fig. 1(C) is a rear view. Fig. 2 is a schematic diagram showing the A-A section in Fig. 1(A). Fig. 3 is a schematic diagram (partial cross-sectional view) for explaining the jet processing nozzle shown in Fig. 2. Fig. 4 is a schematic diagram for explaining the classification mechanism shown in Fig. 2. Fig. 4(A) is a side view, and Fig. 4(B) is a schematic view showing the A-A section in Fig. 4(A). Fig. 5 is a schematic diagram illustrating the storage hopper and the injection material transfer mechanism shown in Fig. 2. FIG. 6 is a flowchart illustrating the spray processing method of the spray processing device shown in FIG. 1. Fig. 7 is a flow chart explaining the classification steps of the jet processing device shown in Fig. 1.

1‧‧‧噴射加工裝置 1‧‧‧Jet processing device

10‧‧‧噴射加工用噴嘴 10‧‧‧Nozzle for jet processing

21‧‧‧上部外殼 21‧‧‧Upper shell

21a‧‧‧觀察窗 21a‧‧‧Observation window

21b‧‧‧採光窗 21b‧‧‧Daylighting window

21c‧‧‧作業部 21c‧‧‧ Operations Department

22‧‧‧下部外殼 22‧‧‧Lower shell

22a‧‧‧殼體 22a‧‧‧Shell

23‧‧‧外框 23‧‧‧Frame

24‧‧‧鉸鏈 24‧‧‧Hinge

25‧‧‧閂鎖 25‧‧‧Latch

26‧‧‧加工板 26‧‧‧Processing board

30‧‧‧分級機構 30‧‧‧Grading agency

34‧‧‧投入構件 34‧‧‧Injecting components

50‧‧‧儲存進料斗 50‧‧‧Storage hopper

E‧‧‧電磁閥 E‧‧‧Solenoid valve

R‧‧‧噴射加工室 R‧‧‧Jet processing room

V‧‧‧壓力調整閥 V‧‧‧Pressure regulating valve

X‧‧‧方向 X‧‧‧direction

Y‧‧‧方向 Y‧‧‧ direction

Z‧‧‧方向 Z‧‧‧ direction

Claims

一種分級機構，其配備於噴射裝置，且具備：整流構件，其呈圓筒形狀，以軸線於水平方向上延伸之方式設置，且一端面藉由封閉板而封閉；分級構件，其係以相對於上述整流構件之軸線成直角之方式連接於該整流構件之另一端，且於內部具有對包含噴射材料之粉粒體進行分級之空間；圓筒形狀之抽吸構件，其前端貫通上述封閉板而配置於上述整流構件之內部，且與上述整流構件呈同心狀配置；及投入構件，其係用以將包含噴射材料之粉粒體投入至上述分級機構之內部之構件，且設置於上述整流構件之上述封閉板側；且上述抽吸構件之末端與抽吸機構連接，上述投入構件係以噴射材料沿上述整流構件之內壁向上述分級構件移送之方式配置。 A grading mechanism, which is equipped in an injection device, and is equipped with: a rectifying member, which is cylindrical in shape, is arranged in such a way that the axis extends in the horizontal direction, and one end surface is closed by a closing plate; the grading member is opposite to It is connected to the other end of the rectifying member at a right angle to the axis of the rectifying member, and has a space for grading the powder and granular material containing the injection material inside; a cylindrical suction member whose front end penetrates the closing plate And arranged inside the rectification member and arranged concentrically with the rectification member; and an input member, which is a member used to put the powder and granular substance containing the spray material into the interior of the classification mechanism, and is arranged in the rectification member And the end of the suction member is connected to the suction mechanism, and the input member is arranged in such a way that the spray material is transferred to the grading member along the inner wall of the rectifying member.

如請求項1之分級機構，其中藉由上述整流構件之內壁面與位於上述整流構件之內部之上述抽吸構件之外壁面形成有整流部，位於與上述整流部之端面對向之位置之上述分級構件之壁面相對於該端面平行，上述整流部之端面至位於與該端面對向之位置之上述分級構件之壁面之長度相對於上述整流部之長度之比例為1.25~1.75。 The grading mechanism of claim 1, wherein a rectifying part is formed by the inner wall surface of the rectifying member and the outer wall surface of the suction member located inside the rectifying member, and is located at a position facing the end face of the rectifying part The wall surface of the grading member is parallel to the end surface, and the ratio of the length from the end surface of the rectifying part to the wall surface of the grading member at a position facing the end surface to the length of the rectifying part is 1.25 to 1.75.

如請求項2之分級機構，其中於上述整流部，上述整流構件之直徑相對於上述抽吸構件之直徑之比例為1.5~2.0。 Such as the classification mechanism of claim 2, wherein in the rectification part, the ratio of the diameter of the rectification member to the diameter of the suction member is 1.5 to 2.0.