TWI657863B - Jet processing device and jet processing method - Google Patents
Jet processing device and jet processing method Download PDFInfo
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- TWI657863B TWI657863B TW104119617A TW104119617A TWI657863B TW I657863 B TWI657863 B TW I657863B TW 104119617 A TW104119617 A TW 104119617A TW 104119617 A TW104119617 A TW 104119617A TW I657863 B TWI657863 B TW I657863B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
- B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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 spray processing device of the present invention includes: a spray processing nozzle that mixes and sprays a spray material sucked into the nozzle holder with compressed air; a housing that houses the spray processing nozzle; a classification mechanism that is connected to the casing A suction mechanism, which is connected to the classification mechanism; and a storage hopper, which stores reusable spray material classified by the classification mechanism. The storage hopper is located below the spray processing nozzle, so a spray material transfer mechanism is provided to transfer the spray material stored in the storage hopper to the spray processing nozzle, thereby stably transferring the spray material. To the nozzle for jet processing.
Description
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-type jet processing device that sprays compressed air and a spray material together toward a workpiece, and particularly relates to a suction-type jet processing device and a jet 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。 A jet processing device is known which mixes spray materials in compressed air and sprays the mixture as a gas-solid two-phase flow from a nozzle toward a workpiece, thereby performing surface treatment of the workpiece (e.g., burrs and rust). (Removal, adjustment of the shape of the end surface, adjustment of the surface roughness, pattern formation of the workpiece, removal of the thin film layer, etc.). The jet processing device is roughly classified into a suction type and a direct pressure type depending on the method of mixing the jet material with the compressed air.
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。 The suction-type jet processing device is configured to mix the compressed air and the spray material inside the nozzle using a suction force generated inside the nozzle by the compressed air sprayed into the nozzle (for example, Patent Document 1). This type of spray processing device does not require a pressure tank such as a direct pressure type, so the spray processing device itself is relatively small.
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。 Generally, after the spray processing device recovers and classifies the powder and granules containing the sprayed spray material, it only sprays the reusable spray material from the nozzle again. In the suction-type spray processing device, the classified spray material must be sucked into the nozzle by the suction force of the nozzle. Therefore, in general, as in Patent Document 1, a grading device is arranged on the upper part of the casing and a hopper storing the classified sprayed material, and gravity is used in addition to the suction force.
[專利文獻1]日本專利特開平04-087771號公報 [Patent Document 1] Japanese Patent Laid-Open No. 04-087771
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。 In the previous device, because the classifying device and the hopper storing the classified sprayed material are arranged above, the overall size of the device becomes large. Therefore, in the previous device, for example, the maintenance of such machines when cleaning them with another spraying material, and the inspection operations in the case of failure of these machines are not good. In addition, in the conventional devices, there is a possibility that the conditions for the installation space when the spray processing device is placed in a factory cannot be satisfied. In addition, in the previous installation, there is a fear that the visibility in the factory may be hindered. In this technical field, a miniaturized suction type jet processing apparatus and jet processing method are expected.
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。 One aspect of the present invention is a spray processing apparatus including a spray processing nozzle that sprays a spray material and compressed air together. One form of the jet processing device includes a casing, a jet processing nozzle, a classification mechanism, a suction mechanism, a storage hopper, and a jet material transfer mechanism. The casing is divided inside to form a spray processing chamber as a closed space. The spray processing nozzle is housed in a spray processing chamber, and sprays a spray material together with compressed air. The classification mechanism is connected to the spray processing chamber, and classifies the powder and granules containing the spray material inside. The suction mechanism is connected to the classification mechanism, and sucks the inside of the classification mechanism. The storage feed hopper is connected to the classification mechanism, and stores the spray material classified by the classification mechanism. The spray material transfer mechanism is provided in the storage feed hopper, and transfers the spray material stored in the storage feed hopper to the spray processing nozzle. The jet processing nozzle includes: an air nozzle that supplies compressed air; a jet nozzle that jets spray material and compressed air; and a nozzle holder that inserts the air nozzle and the jet nozzle and has a jet material that is connected to a jet material transfer mechanism Suction port. The storage hopper is disposed below the nozzle for spray processing.
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。 In one aspect of the present invention, since the classification mechanism is arranged at a lower position than before, the entire size of the jet processing apparatus is reduced. However, when the storage tank is located at the lower part of the housing, that is, lower than the nozzle for spray processing, it is difficult to use the suction force generated inside the nozzle for spray processing to stably transfer the spray material to the nozzle for spray processing. . In one aspect of the present invention, since a spray material transfer mechanism is provided, the spray material can be stably transferred to the spray processing nozzle.
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。 In one embodiment, the jet processing apparatus may further include a base. Furthermore, the housing may be disposed on the base so that the jet processing chamber is separated from the base and supported. In addition, the classification mechanism and the storage hopper can also be arranged inside the casing and between the jet processing chamber and the abutment. Since the classification mechanism is arranged at a lower position than before, the size of the jet processing apparatus is further reduced.
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。 In one embodiment, the ejection 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 external air, and use the flow of the external air to transfer the ejection material. It is possible to stably transfer the spray material to the spray processing nozzle without separately providing a power source for transferring the spray material.
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。 In one embodiment, the storage hopper may have a first side surface and a second side surface facing the first side surface. In addition, the ejection material transfer mechanism may include a ejection material extraction tube that penetrates the first side and the rear end of the ejection material removal tube is disposed inside the storage hopper; and an external air introduction tube that penetrates the second opposite to the ejection material extraction tube. 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 processing nozzle.
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。 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 may be adjusted. With this configuration, the amount of spray material to be transferred to the spray processing nozzle can be arbitrarily set, and therefore the processing capacity can be set.
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。 In one embodiment, the outer diameter of the outside air introduction pipe may be larger than that of the ejection material. The inner diameter of the tube is provided at the front end of the external air introduction tube with a portion that is continuously reduced in diameter so that its outer diameter is smaller than the inner diameter of the ejection material extraction tube. The gap between the outer wall of the outer air introduction pipe and the inner wall of the ejection material extraction pipe can be easily adjusted.
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。 In one embodiment, the classification mechanism may include a rectifying member, a classification member, a suction member, and an input member. The rectifying member has a cylindrical shape, and is provided in such a manner 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 to the axis of the rectifying member, and has a space for grading the powder and granules containing the spray material inside. The suction member has a cylindrical shape, is disposed inside the rectifying member through the closed plate, and is arranged concentrically with the rectifying member. The input member is a member for inputting the powder and granules including the spray material into the classification mechanism, and is provided on the closed plate side of the rectification member. In addition, the suction member is connected to the suction mechanism, and the input member is arranged so that the sprayed material is transferred to the classification member along the inner wall of the flow regulating member. With this configuration, the classifying mechanism can be miniaturized as compared with the conventional cyclone-type classifier, so that the entire jet processing apparatus can be miniaturized.
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。 In one embodiment, the rectifying portion 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. Parallel to the end surface, the ratio of the length of the end surface of the rectifying portion to the wall surface of the classification member located at a position opposite to the end surface relative to the length of the rectifying portion is set to 1.25 to 1.75. In one form, in the rectifying section, the ratio of the diameter of the rectifying member to the diameter of the suction member may be set to 1.5 to 2.0. By setting it as this range, the rectifying part can be used to well rectify the powder and granules containing the spray material, so that only the recyclable spray material can be recovered with better accuracy.
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。 One embodiment of the jet processing method implemented by the jet processing apparatus configured as described above includes a suction step that sucks a jet processing chamber by a suction mechanism, and a jet step that supplies compressed air to an air nozzle, and The step of spraying the spray material from the spray nozzle toward the workpiece; the step of grinding the workpiece by colliding the spray material; and the classification step In step, the spray material is recovered from the sprayed powder particles containing the spray material by a classification mechanism. In addition, the classification step may include the following steps: by the action of the suction mechanism, making the inside of the classification mechanism into a negative pressure and generating an airflow that swirls and faces the classification member at the rectification part; Into the classifying mechanism; causing the powder and granules to advance toward the classifying member while swirling while flowing; and causing the spray material to fall from the powder and granules containing the spraying material that reached the classifying member toward the bottom of the classifying member and The remaining powder particles are sucked from the suction member. According to an embodiment, the reusable spray material can be recovered with high accuracy even without using a longitudinal wind classifier like the previous spray processing device. Therefore, it is possible to perform spray processing of a plurality of workpieces. Jet processing with less unevenness in processing is performed.
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。 As described above, according to various aspects and embodiments of the present invention, there is provided an injection processing apparatus which is smaller in size than the previous injection processing apparatus and a processing method using the same.
1‧‧‧噴射加工裝置 1‧‧‧jet processing equipment
10‧‧‧噴射加工用噴嘴 10‧‧‧ Nozzle for Jet Processing
11‧‧‧噴嘴保持器 11‧‧‧ Nozzle holder
11a‧‧‧噴射材料抽吸口 11a‧‧‧jet material suction port
11b‧‧‧路徑(噴射材料) 11b‧‧‧path (jet material)
11c‧‧‧混合室 11c‧‧‧ mixing room
11d‧‧‧空氣噴嘴***口 11d‧‧‧Air nozzle insertion port
11e‧‧‧噴射噴嘴***口 11e‧‧‧jet nozzle insertion port
12‧‧‧空氣噴嘴 12‧‧‧air nozzle
12a‧‧‧路徑(壓縮空氣) 12a‧‧‧path (compressed air)
12b‧‧‧加速部(壓縮空氣) 12b‧‧‧Acceleration section (compressed air)
13‧‧‧噴射噴嘴 13‧‧‧jet nozzle
13a‧‧‧噴射口 13a‧‧‧jet port
13b‧‧‧路徑(氣固兩相流) 13b‧‧‧path (gas-solid two-phase flow)
13c‧‧‧加速部 13c‧‧‧Acceleration Department
13d‧‧‧整流部(氣固兩相流) 13d‧‧‧rectification section (gas-solid two-phase flow)
20‧‧‧殼體 20‧‧‧shell
21‧‧‧上部外殼 21‧‧‧upper shell
21a‧‧‧觀察窗 21a‧‧‧observation window
21b‧‧‧採光窗 21b‧‧‧lighting window
21c‧‧‧作業部 21c‧‧‧Operation Department
22‧‧‧下部外殼 22‧‧‧lower shell
22a‧‧‧殼體 22a‧‧‧shell
23‧‧‧外框 23‧‧‧Frame
23a‧‧‧開口部 23a‧‧‧ opening
23b‧‧‧開口部 23b‧‧‧ opening
24‧‧‧鉸鏈 24‧‧‧ Hinge
25‧‧‧閂鎖 25‧‧‧ Latch
26‧‧‧加工板 26‧‧‧Processing board
30‧‧‧分級機構 30‧‧‧Classification Agency
31‧‧‧整流構件 31‧‧‧Rectifying component
31a‧‧‧封閉板 31a‧‧‧closed plate
31b‧‧‧整流部 31b‧‧‧Rectification Department
32‧‧‧分級構件 32‧‧‧hierarchical components
33‧‧‧抽吸構件 33‧‧‧Suction member
34‧‧‧投入構件 34‧‧‧ Input components
34a‧‧‧投入構件之下端面 34a‧‧‧End face of input member
34b‧‧‧投入構件之上端面 34b‧‧‧ Upper end face of input member
40‧‧‧抽吸機構 40‧‧‧Suction mechanism
41‧‧‧抽吸機構本體 41‧‧‧Suction mechanism body
41a‧‧‧開閉扉 41a‧‧‧Open and close 扉
42‧‧‧抽吸力產生源 42‧‧‧ suction source
50‧‧‧儲存進料斗 50‧‧‧Storage Feed Hopper
50a‧‧‧側壁(第1側面) 50a‧‧‧ sidewall (1st side)
50b‧‧‧側壁(第2側面) 50b‧‧‧ sidewall (second side)
51‧‧‧噴射材料排出構件 51‧‧‧jet material discharge member
52‧‧‧封閉栓 52‧‧‧ Closure plug
60‧‧‧噴射材料移送機構 60‧‧‧jet material transfer mechanism
61‧‧‧噴射材料取出管 61‧‧‧jet material take-out tube
61a‧‧‧噴射材料取出管之後端 61a‧‧‧ Rear end of ejection material take-out tube
62‧‧‧外氣導入管安裝構件 62‧‧‧Mounting member for outside air introduction pipe
63‧‧‧外氣導入管 63‧‧‧External air introduction pipe
63a‧‧‧外氣導入管之前端 63a‧‧‧ Front end of outside air introduction pipe
70‧‧‧基台 70‧‧‧ abutment
71‧‧‧加高基底 71‧‧‧ Raise the base
a‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 a‧‧‧ Flow of airflow, spray material and dust in the classification mechanism
b‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 b‧‧‧ Flow of airflow, spray material and dust in the classification mechanism
c‧‧‧分級機構內之氣流、噴射材料及粉塵之流動 c‧‧‧ Flow of airflow, spray material and dust in the classification mechanism
D1‧‧‧抽吸構件之直徑 D1‧‧‧diameter of suction member
D2‧‧‧整流構件之直徑 D2‧‧‧ diameter of rectifying element
E‧‧‧電磁閥 E‧‧‧Solenoid valve
L1‧‧‧整流部之長度 L1‧‧‧ length of rectifier
L2‧‧‧整流部之前端面至分級構件之壁面之長度 L2‧‧‧The length from the front end of the rectifying section to the wall surface of the classification member
P‧‧‧操作面板 P‧‧‧ operation panel
R‧‧‧噴射加工室 R‧‧‧jet processing room
S‧‧‧感測器 S‧‧‧Sensor
S10‧‧‧步驟 S10‧‧‧step
S12‧‧‧步驟 S12‧‧‧step
S14‧‧‧步驟 S14‧‧‧step
S16‧‧‧步驟 S16‧‧‧step
S18‧‧‧步驟 S18‧‧‧step
S20‧‧‧步驟 S20‧‧‧step
S22‧‧‧步驟 S22‧‧‧step
S24‧‧‧步驟 S24‧‧‧step
S26‧‧‧步驟 S26‧‧‧step
S28‧‧‧步驟 S28‧‧‧step
S30‧‧‧步驟 S30‧‧‧step
S32‧‧‧步驟 S32‧‧‧step
S40‧‧‧步驟 S40‧‧‧step
S42‧‧‧步驟 S42‧‧‧step
S44‧‧‧步驟 S44‧‧‧step
S46‧‧‧步驟 S46‧‧‧step
S48‧‧‧步驟 S48‧‧‧step
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
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。 FIG. 1 is a schematic diagram showing the appearance of a spray processing apparatus according to 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.
圖2係表示圖1(A)中之A-A剖面之模式圖。 Fig. 2 is a schematic view showing the A-A section in Fig. 1 (A).
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)。 FIG. 3 is a schematic diagram (partial cross-sectional view) for explaining the jet processing nozzle shown in FIG. 2.
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。 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).
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。 FIG. 5 is a schematic diagram illustrating a storage hopper and a spray material transfer mechanism shown in FIG. 2.
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。 FIG. 6 is a flowchart illustrating a jet processing method of the jet processing apparatus shown in FIG. 1.
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. 7 is a flowchart illustrating the classification steps of the jet processing apparatus shown in FIG. 1.
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。 An example of the spray processing apparatus of this embodiment is demonstrated using drawings. The present invention is not limited to this embodiment, and changes, modifications, and improvements can be added as long as they do not depart from the scope of the invention. In addition, in the following description, "the direction of up, down, left and right" means the direction in the drawing 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 near direction is the negative direction of the Y axis in the figure.
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。 The spray 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 spray processing apparatus 1 according to 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 view showing the A-A section in Fig. 1 (A). The jet processing apparatus 1 includes, for example, a jet processing nozzle 10, a housing 20, a classifying mechanism 30, a suction mechanism 40, a storage hopper 50, a spray material transfer mechanism 60, and a base 70 forming a bottom surface.
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。 The jet processing nozzle 10 is a so-called suction type. The spray processing nozzle 10 is disposed in a spray processing chamber R described below, and sprays a spray 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 jet processing nozzle 10 includes, for example, a nozzle holder 11, a cylindrical air nozzle 12, and a cylindrical spray nozzle 13. The nozzle holder 11 is formed therein with a mixing chamber 11c for mixing compressed air and a spray material. The nozzle holder 11 includes three openings communicating with the mixing chamber 11c. For example, the nozzle holder 11 includes 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 injection nozzle insertion port 11e are coaxial. The spray material suction port 11a is formed in a direction crossing the direction in which the air nozzle insertion port 11d and the spray nozzle insertion port 11e are aligned. The ejection material suction port 11a is used to insert (suction) the ejection material into the opening of the nozzle holder 11. mouth. 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 into and fixed to the air nozzle insertion opening 11d (one end side of the nozzle holder 11 (upper end surface side in FIG. 3)). The injection nozzle 13 is inserted into and fixed to the injection nozzle insertion opening 11e (the other end side of the nozzle holder 11). The air nozzles 12 and the spray nozzles 13 are arranged so that the center lines of the cross sections of each of them are located on the same line. A mixing chamber 11c is formed by dividing the inner surfaces of the nozzle holder 11 and the injection nozzle 13 inside the nozzle holder 11.
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。 The air nozzle 12 is a nozzle for injecting compressed air into the nozzle holder 11. The compressed air path 12a includes an acceleration portion 12b for accelerating the flow rate of the compressed air. The air nozzle 12 is connected to a compressor (not shown).
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。 The injection nozzle 13 is a nozzle for ejecting the compressed air and the injection material mixed in the mixing chamber 11c from the injection port 13a as a gas-solid two-phase flow. The path of the gas-solid two-phase flow is formed by an acceleration portion 13c that continuously reduces the diameter from the end face of the nozzle holder 11 toward the front end, and a rectifying portion 13d that rectifies the flow of the gas-solid two-phase flow that has passed through the acceleration portion 13c form.
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。 When compressed air is sprayed into the interior of the nozzle by the air nozzle 12, a suction force is generated inside the nozzle holder 11, that is, the mixing chamber 11c. Because 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 spray nozzle 13, the air nozzle 12 is adjusted in the vertical direction in a manner to become the optimal suction force, The illustrated bolts and the like fix the air nozzle 12 to the nozzle holder 11. The ejection material injected (suctioned) from the ejection material suction port 11a passes through the path 11b and is transferred to the mixing chamber 11c. The sprayed material reaching the mixing chamber 11c is mixed with compressed air. The mixed compressed air and the ejection material are ejected from the ejection port 13a through the path 13b.
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。 The adjustment of the injection pressure from the injection nozzle 13 is performed by a pressure adjustment valve V disposed in front of the outer frame 23 described below. The pressure adjustment valve V is provided in a path from an external air compressor (not shown) to the air nozzle 12. When the value from the pressure gauge connected to the pressure adjustment valve V points to a specific pressure when spraying from the injection nozzle 13, the pressure adjustment valve V adjusts the pressure of the compressed air. 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 ON and OFF of the solenoid valve E can be switched, that is, compressed. Whether or not air is supplied to the air nozzle 12.
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。 As shown in FIGS. 1 and 2, the case 20 includes, for example, an upper case 21, a lower case 22, and an outer frame 23 fixed to the lower case 22. The casing 20 is divided into a spray processing chamber R inside. Specifically, a spray processing chamber R is formed inside the upper casing 21 and the lower casing 22.
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。 The upper case 21 has, for example, a box shape with an open bottom surface. The shape of the opening is, for example, a quadrangle. The upper casing 21 is one of the members that divides the spray processing chamber R. Specifically, the upper casing 21 has four top surfaces and bottom surfaces that are opposed to the base 70 in parallel, and four side surfaces (left and right side surfaces, front and back, which are aligned in parallel), And an inclined surface provided to connect the top surface to the front and back surfaces. An observation window (monitoring window) 21a for observing the inside of the injection processing chamber R is provided on the inclined surface on the front side of the upper casing 21. A lighting window 21b is provided on the top surface of the upper casing 21 for capturing external light to the inside of the spray processing chamber R. The observation window 21a and the lighting window 21b are formed, for example, by inserting a plate member having visibility formed of quartz glass or the like into a window frame member. A working portion 21c is provided on the front surface of the upper case 21. The working portion 21c is an opening that communicates with the spray processing chamber R. The operation section 21c has both an air inlet for extracting outside air when sucking the inside of the injection processing room R, and an opening for an operator to put his hand into the injection processing room R during the injection processing. . In this embodiment, a rubber plate provided with a plurality of cutouts radiating from a central portion is fixed to the working portion 21c.
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。 The lower case 22 has, for example, an inverted conical ladder shape whose upper end surface is opened. The lower case 22 is one of the members that divides the spray processing chamber R. The lower casing 22 has an upper end surface slightly larger than the bottom surface of the upper casing 21 and has a shape in which the cross-sectional area is continuously reduced toward the bottom surface. At the upper end of the lower casing 22, a housing 22a is inserted to fit the lower end of the upper casing 21. Further, to the lower end of the lower casing 22, an input member 34 described below is connected, and the injection processing chamber R and The classification mechanism 30 is connected via an input member 34.
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。 The outer frame 23 has, for example, a box shape whose upper and lower end surfaces are opened. The shape of the opening is, for example, a quadrangle. The outer frame 23 is erected on the base 70. The upper end of the outer frame 23 is fixed to the case 22 a of the lower case 22. That is, the outer frame 23 supports and separates the lower case 22 from the base 70. The outer frame 23 can fix the lower case 22 to a specific height relative to the base 70. Openings (notches) 23a and 23b are respectively provided on the front surface and the lower portion of the back surface of the outer frame 23. The opening 23a on the front side of the outer frame 23 is as described below. When the classification mechanism 30, the suction mechanism 40, the storage hopper 50, or the spray material transfer mechanism 60 is maintained, the operator can access these components and use. The opening portion 23 b on the back side of the outer frame 23 can exhaust the air sucked by the suction mechanism 40 and the heat generated by the heat generated in the suction mechanism 40.
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)。 A hinge 24 is provided on the back of the outer frame 23 so that the lower end of the back of the upper case 21 is connected to the upper end of the back of the outer frame 23 (ie, the lower case 22). Thereby, the upper case 21 is provided so that the lower end of the back surface may be rotated as a center. More specifically, the upper casing 21 can be rotated around the hinge 24. By the rotation of the upper casing 21, the spray processing chamber R can be opened or closed in front of the spray processing apparatus 1. A latch 25 is provided in front of the outer frame 23. The upper case 21 and the outer frame 23 (that is, the lower case 22) are fixed by the latch 25.
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。 On the side of the outer frame 23, a sensor S is provided to detect when the upper casing 21 has been closed. When it is not detected that the upper case 21 has been closed by the sensor S, the injection processing apparatus 1 does not operate. That is, the spray material cannot be sprayed from the spray processing nozzle 10 with the spray processing chamber R opened. Therefore, the safety of workers is improved.
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。 A processing board 26 on which the workpiece can be placed during the spray processing is fixed in the spray processing chamber R. The processing board 26 is provided with a plurality of openings, and the plurality of openings can pass the powder and granules including the spray material toward the bottom.
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。 The classification mechanism 30 may also place the vertical cyclone separation classifier in the spray processing sprayer. The lower part of the mouth 10 is arranged, but in this embodiment, a grading mechanism 30 configured as 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 A-A section in Fig. 4 (A). As shown in FIG. 4, the classification mechanism 30 according to the present embodiment is supplied with powder and granules including a spray material from the lower casing 22. The classification mechanism 30 includes, for example, a cylindrical rectifying member 31 having both ends open, a substantially box-like grading member 32, a cylindrical suction member 33, and a rectangular cylindrical input member 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。 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 right end surface in FIG. 4 (B)) is closed by a ring-shaped closing plate 31 a and a suction member 33 described below. An input member 34 is connected to a lower end of the rectifying member 31. Thereby, the powder and granules are supplied to the inside of the rectifying member 31 via the input member 34. The other end of the rectifying member 31 (the left end face in FIG. 4 (B)) is connected to the upper portion of the classification member 32. Thereby, the inside of the rectifying member 31 and the inside of the classification member 32 are communicated.
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。 The box-shaped grading member 32 has an upper portion and a lower portion that is shorter in width than the upper portion. The upper portion is a vertically long quadrangle when viewed from the front direction (the positive direction of the Y axis) and circular when viewed from the side direction (the X direction). More specifically, the longitudinal section of the upper part of the classification member 32 as viewed from the device side direction (view point (X direction) in FIG. 4 (A)) is a circle having a diameter equal to or larger than the diameter of the flow regulating member 31. The classification 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 space | interval narrows from an upper end toward a lower end. That is, the area of the cross section of the lower part of the classification member 32 is continuously reduced toward the lower end. The lower end portion of the side surface of the classification member 32 is opened. A storage hopper 50 is fixed to the bottom of the classification member 32.
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。 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 disposed inside the rectifying member 31. The suction member 33 and the rectifying member 31 are arranged concentrically. Accordingly, the double-cylindrical structure is formed by the rectifying member 31 and the suction member 33. One end of the suction member 33 The part (the right end part in FIG. 4 (B)) is connected to the opening part of the ring-shaped closing plate 31a. One end portion of the suction member 33 is connected to the suction mechanism 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。 When the suction mechanism 40 is actuated, the space of the rectifying member 31 and the classification member 32 is sucked by the suction member 33, so that the outside air and powder particles including the spray material are sucked to the classification mechanism 30 from the input member 34. 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 provided such that the lower end surface 34a thereof is tangent to the circumferential inner wall surface of the rectifying member 31. Thereby, the flow path formed by the sucked external air spirally on the inner wall surface of the rectifying member 31 and the outer wall surface of the suction member 33 is spiraled along the inner wall of the rectifying member 31 toward the classification member 32 (rectifying portion 31b) Flow. The powder and granules including the spray material are moved toward the classification member 32 by the air flow. In addition, the input member 34 may be provided in such a manner that the extended imaginary line of the upper end surface 34 b thereof is tangent to the circumferential outer wall surface of the suction member 33. In this case, the sucked foreign air also flows spirally in the rectifying portion 31b along the outer wall of the suction member 33 toward the classification member 32, and the powder particles including the spray material are transferred by the airflow.
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」)。 The powder and granules including the spray material that have passed through the rectifying portion 31 b continue to advance while rotating and reach the classification member 32. Then, while continuing to devolve, it continues to decelerate and then continues to move forward (arrow "a" in Fig. 4 (B)). During deceleration, the reusable spray material, which is a heavier particle, drops to the bottom of the classification member 32 by gravity, and accumulates in the storage hopper 50 (the arrow "b" in the figure). On the other hand, the non-reusable spray material as lighter particles and the cutting powder (collectively referred to as "dust" hereinafter) generated during the spray processing are sucked by the suction member 33 to the suction mechanism 40 (The same arrow "c" in the figure).
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)。 Here, if the length of the rectifying portion 31b or the front end surface of the rectifying portion 31b (that is, the front end surface of the suction member 33 and the left cross section in FIG. 4 (B)) to the classification member 32 located at a position facing the front end If the length of the wall surface is too short, the classification efficiency is reduced. If the length of the rectifying portion 31b is too short beyond the necessary degree, the force for turning the powder and granules containing the spray material cannot be sufficiently obtained. Therefore, immediately after passing through the rectifying portion 31b, it is removed from the front end face of the rectifying member 31. Suction. 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 located at a position facing the front end is too short than necessary, the sprayed material will not be sufficiently decelerated and will collide with the wall surface to rebound and reach the pumping position. The reusable spray material near the suction member 33 is sucked from the end face before the suction member 33, so that 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 classification member 32 located at a position facing the front end is excessively longer than necessary, the classification mechanism 30 itself becomes large. Therefore, in order to obtain good classification efficiency and to avoid the size of the classification mechanism 30 becoming larger than necessary, the front end surface of the rectifying section 31b to the classification member 32 located at a position facing the front end can be set within the range of 1.25 to 1.75. The ratio (L2 / L1) of the length L2 of the wall surface to the length L1 of the rectifying portion 31b.
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)。 In the rectifying section 31b, if the diameter of the rectifying member 31 is too small compared to the diameter of the suction member 33, the space of the rectifying section 31b will be too narrow to prevent the passage of the powder and particles including the ejection material. As a result, in the rectifying section 31b, the speed at which the powder and granules including the ejection material advance toward the classification member 32 becomes slow, and after passing through the rectifying section 31b, it is sucked from the front end face of the suction member 33. At this time, the reusable spray material is also sucked, so the classification efficiency is reduced. Therefore, it is necessary to increase the diameter of the rectifying member 31 so that the powder and granules including the spray material can pass well, but if the diameter is too large, the classifying mechanism 30 becomes large. In addition, if the diameter of the suction member 33 is too small, the suction speed becomes too slow, and the reusable spray material is also sucked, so the classification efficiency is reduced. When the diameter of the suction member 33 is too large, as described above, the diameter of the rectifying member 31 must be enlarged, so that the classification mechanism 30 becomes large. Therefore, in order to obtain good classification efficiency, and to avoid the classification mechanism 30 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).
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2.1~3.6m3/min之方式進行調整。 If the air volume in the rectifying portion 31 b is too slow, the velocity of the powder and particles including the ejection material becomes too slow, and after passing through the rectifying portion 31 b, it will be sucked from the front end face of the suction member 33. If the air volume is too fast, the speed of the powder and granules including the spray material becomes too fast, and the powder and granules including the spray material colliding with the wall surface of the classification member 32 and rebounding move to the vicinity of the front end of the suction member 33. In either case, the reusable spray material is sucked, so the classification efficiency is reduced. Therefore, in order to obtain good classification efficiency, the air volume at the front end of the rectifying section 31b can also be adjusted in a manner of 2.1 to 3.6 m 3 / min.
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45~850μm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45~500μm之範圍選擇粒子徑。 In the classifying mechanism 30 of this embodiment, the spraying material generally used in spray processing can be classified well. Examples of the spray material include ferrous and non-ferrous metal based shots, cut wirds and grids, and 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, walnut, peach, etc.), and the like. According to the specific gravity of these spray materials, the particle diameter is appropriately selected. For example, in the case of a spray material with a specific gravity of 1.1 to 4.0 (alumina particles, glass particles, nylon, walnut, etc.), the particle diameter can be selected from a range of 45 to 850 μm, and the spray material with a specific gravity of 7.2 to 7.9 In the case of (iron-based beads), the particle diameter can be selected from a range of 45 to 500 μm.
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。 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. Moreover, like this embodiment, it may have a part which continuously reduces the cross-sectional area toward the lower end.
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。 The classifying mechanism 30 of this embodiment is smaller than the classifier used in the previous jet processing apparatus such as a vertical cyclone-type classifier. Therefore, the size of the entire spray processing apparatus can be reduced.
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。 The suction mechanism 40 includes a suction mechanism body 41 which is a closed box and a suction force generation source 42 which is connected to the suction mechanism body 41. The suction mechanism body 41 is connected to the classification mechanism 30, and a filter (not shown) for capturing dust is disposed in the suction mechanism body 41 located on the path of the suction member 33 and the suction force generation source 42. When the suction force generation source 42 is actuated, the dust and air in the classification mechanism 30 are sucked to the suction mechanism body 41 together. Be The suctioned dust is captured by the filter when it is transferred toward the suction force generation source 42 and only air is transferred to the suction force generation source 42. The captured dust can be recovered by the operator by accessing the opening / closing 扉 41a provided in front of the suction mechanism body 41 through the opening 23a, opening the opening / closing 扉 41a, and removing the filter. In addition, the operation of the suction force generation source 42 is switched by the operation of the operation panel P disposed in front of the outer frame 23.
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。 FIG. 5 is a schematic diagram illustrating a storage hopper and a spray material transfer mechanism shown in FIG. 2. As shown in FIG. 5, the storage feed hopper 50 has an upper end fixed to the bottom of the classification member 32 of the classification mechanism 30. The storage hopper 50 has a box shape in which the internal space communicates with the classification mechanism 30. A spray material discharge member 51 is provided at the bottom of the storage hopper 50, and an opening for discharging the spray material in the storage hopper 50 is provided at the lower end of the spray material discharge member 51. A closing bolt 52 is embedded in the opening. The closing plug 52 of this embodiment has a conical ladder shape made of rubber. When replacing the spraying material used in the spraying process, it is only necessary to remove the closing plug 52 to take out the spraying material, and then insert the closing plug 52 again.
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。 In order to transfer the spray material stored in the storage hopper 50 to the spray processing nozzle 10, the storage material hopper 50 is provided with the spray material transfer mechanism 60 of the spray material. As shown in FIG. 5, the ejection material transfer mechanism 60 includes a circular tube-shaped ejection material take-out tube 61, a circular tube-shaped external air introduction tube mounting member 62, and an external air introduction tube 63. The spray material take-out pipe 61 is fixed so that its rear end 61a penetrates the side wall 50a (first side) of the storage hopper 50 (the left side wall and the negative direction of the Y axis in FIG. 5). The outside air introduction pipe mounting member 62 is fixed so as to penetrate the side wall 50b (second side surface) of the storage hopper 50 opposite to the ejection material extraction pipe 61 (the right side wall and the positive direction of the Y axis in FIG. 5). The outside air introduction pipe 63 is inserted into the outside air introduction pipe mounting member 62 and fixed.
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。 The outside air introduction pipe 63 is fixed such that the front end 63 a thereof is located in the ejection material extraction pipe 61. The spray material extraction pipe 61 is connected to a spray material suction port 11 a of the spray processing nozzle 10. Due to the suction force generated inside the spray processing nozzle 10, an air flow is generated in the spray material extraction pipe 61 toward the spray processing nozzle 10. At this time, from the outside air introduction pipe 63 suction outside air. That is, a state in which an external air flow is sprayed is formed at the front end of the external 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 sprayed material in the storage hopper 50 is sucked into the sprayed material take-out pipe 61 by this air flow, and is transferred to the spray processing nozzle 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。 The outside air introduction pipe 63 only needs to be located at least at the front end 63a of the outside air introduction pipe 61. Therefore, the external air introduction pipe 63 may be a circular pipe having 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 a shape where the outer diameter thereof is larger than the inner diameter of the ejection material take-out pipe 61, and the shape of the portion where the front end 63a is continuously reduced in diameter is smaller than the inner diameter of the ejection material take-out pipe 61 . In the latter configuration, the gap between the outer wall of the outer air introduction pipe 63 and the inner wall of the ejection material extraction pipe 61 can be adjusted by adjusting the left and right positions of the outer air introduction pipe 63. By changing the size of the gap, the amount of ejection material sucked into the ejection material extraction pipe 61 can be changed. If the gap is too wide, the ejection material cannot be sucked to the ejection material take-out pipe 61 stably, so the ejection amount from the injection processing nozzle 10 becomes unstable. That is, stable jet processing cannot be performed. If the gap is too narrow, the ejection material is prevented from passing through the gap. By adjusting the gap, the amount of spray material (mixing ratio of the spray material to the compressed air) transferred to the spray processing nozzle 10 can be adjusted. Therefore, the capability of the spray processing can be adjusted by operating the external air introduction pipe 63 .
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。 As described above, the classifying mechanism 30, the suction mechanism 40, and the storage hopper 50 are smaller than the previous jet processing apparatus, and thus can be arranged on the base 70 in a manner of being enclosed in the outer frame 23. In addition, since it can be stably transferred to the spray processing nozzle 10 by the spray material transfer mechanism 60, stable spray processing can be performed. As a result, it is possible to reduce the size and configure the spray processing stably.
又，於基台70，如圖1(A)所示，可固定有縱剖面呈字狀之加高基底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。 In addition, as shown in FIG. 1 (A), the base 70 can be fixed with a longitudinal section showing 字 状 的 高 底 71。 The raised base 71. When the jet processing apparatus is installed, the jet processing apparatus can be easily moved by a stacker or the like by raising the base 71.
(噴射加工方法) (Jet processing method)
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。 Next, a spray processing method performed by the spray processing apparatus 1 according to this embodiment will be described. FIG. 6 is a flowchart illustrating a jet processing method of the jet processing apparatus shown in FIG. 1.
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。 As shown in FIG. 6, the operation panel P is operated, the suction mechanism 40 is operated, and the inside of the injection processing chamber R is suctioned (S10: suction step). Next, the latch 25 is released, and the upper case 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). Thereafter, the upper case 21 is closed and locked by the latch 25 to fix the upper case 21 and the lower case 22 (S16). Thereby, the spray processing chamber R which is a closed space is formed. The injection processing chamber R becomes a negative pressure by being sucked by the suction mechanism 40, and the outside air flows into the injection processing chamber R from the operation section 21c.
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)。 The worker puts on a glove, inserts his hand from the work section 21c, and holds the jet processing nozzle 10. Next, the above-mentioned foot switch is turned "ON", and a gas-solid two-phase flow including a spray material is sprayed from the spray port 13a. At this time, the pressure adjustment valve V disposed on the front surface of the injection processing device 1 is operated so as to have a specific injection pressure. The pressure adjustment valve V disposed on the front surface of the injection processing device 1 is used to confirm and adjust the pressure, and then the pedal is adjusted. Switch "OFF" to stop the ejection of the ejection material and pull out the hand (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)。 Next, the latch 25 is released, the upper casing 21 is opened (S20), and a workpiece (object to be processed) is placed on the processing plate 26 (S22). Thereafter, the upper case 21 is closed, and the upper case 21 and the lower case 22 are fixed by locking by the latch 25 (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。 To operate the operation panel P, the operator inserts his hand from the operation section 21c to hold the jet processing nozzle 10 and the workpiece, and then turns the foot switch "ON" to inject the gas-solid two-phase flow from the injection port 13a (S26: Spraying step). Then, the worker grinds the workpiece by scanning the workpiece against the ejection port 13a with the glove interposed (S28: grinding step). At this time, the inside of the spray processing chamber R becomes a negative pressure, so that the powdery particles (the spray material and the dust) including the spray material will not leak from the spray processing chamber R to the outside.
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。 The state of the spray processing can be observed from an observation window 21a provided on the front side inclined surface. Moreover, since the lighting window 21b is provided in the top surface, even if a light projector is not provided in the spray processing room R, the spray processing room R can be observed.
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。 In performing the processing of S26 and S28, a classification step is performed. FIG. 7 is a flowchart illustrating the classification steps of the jet processing apparatus shown in FIG. 1. The powder and granules containing the spray material sprayed from the spray port 13 a are 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 material and dust. In detail, the suction force of the suction mechanism 40 causes a negative pressure in the classification mechanism 30, and an air flow is generated in the rectifying portion 31b while rotating toward the classification member 32 (S40). First, by this negative pressure, powder and granules including a spray material are injected into the classification mechanism 30 from the input member 34 (S42). The powder and granules including the spray material that have reached the rectifying section 31b advance toward the classification member 32 while swirling by the airflow generated in the rectifying section 31b (S44). Then, among the sprayed materials reaching the classification member 32, the heavy reusable sprayed material is dropped by gravity and 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 sprayed again from the spray port 13a. On the other hand, the lighter-weight dust is sucked into the suction mechanism 40 and captured in a filter in the suction mechanism body 41 (S48). This completes the flowchart shown in FIG. 7.
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。 Returning to FIG. 6, after the gas-solid two-phase flow is sprayed to the workpiece for a specific time, the above-mentioned foot switch is turned “OFF” to stop the gas-solid two-phase flow injection, and the hand is pulled out. Thereafter, the latch 25 is released, the upper casing 21 is opened, and the workpiece is recovered (S30, S32). After removing the spray material and dust attached to the workpiece, a series of spray processing shown in FIG. 6 is completed.
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。 If a certain amount of dust is trapped in the filter trapped in the suction mechanism body 41 and the suction capacity is reduced, the gas-solid two-phase flow injection and suction mechanism 40 are stopped, and then the operator passes the outer frame 23 The opening 23a approaches the opening / closing 扉 41a located in front of the jet processing apparatus 1, and the opening / closing 扉 41a is opened to remove the filter and clean the filter. The accumulation of dust can also be installed in the suction mechanism body 41 with a differential pressure gauge, It can also be set to manage the degree of cleaning of the filter after the operation on the 1st.
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。 When it is necessary to discharge the spray material from the spray processing device 1 in order to change the spray material or clean the spray processing device 1, the worker passes through the opening 23 a of the outer frame 23 with the upper casing 21 and the lower casing 22 fixed. Approach the closing plug 52, remove the closing plug 5, discharge the ejected material in the storage hopper 50, and then insert the closing plug 52 into the opening of the ejected material discharge member 51 again. Then, a nozzle (not shown) for injecting compressed air is inserted from the operation section 21c to remove the spray material and dust attached to the spray processing chamber R by the air flow, and the spray material is self-injected from the above-mentioned foot switch. Removal of the path of the spray material sprayed from the processing nozzle 10. By repeating this operation, the ejected material in the ejection processing apparatus 1 can be completely discharged.
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。 Next, the results obtained by inspecting the jet processing apparatus 1 of this embodiment will be described.
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10min，噴射該粉粒體。 As the spray material, alumina-based particles (manufactured by Shindong Industries Co., Ltd .: AF24) were used, and as a dust-like type, alumina-based particles (manufactured by Shindong Industries Co., Ltd .: WA # 800) were used. The powder and granules obtained by weighing and mixing 98% spray material and 2% dust are used as the initial powder and granules, and are stored in the storage hopper 50, and then the spray processing device 1 is operated for 10 minutes to spray the powder. body.
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0.500mm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。 After the operation of the jet processing apparatus 1 is stopped, the powder and granules stored in the hopper 50 are recovered. After the recovered powder and granules were classified with a sieve having a mesh size of 0.500 mm, the weight of each of the large-diameter particles and the fine particles was measured, and the following contents were calculated and evaluated.
(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 (1) The ratio of the weight of the large diameter particles after the test to the weight of the initial powder and granules
(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 (2) The ratio of the weight of the fine particles after the test to the total weight of the powder and granules after the test
評價標準如下所述。 The evaluation criteria are as follows.
○‧‧‧(1)為95%以上，且(2)未達1%。 ○ ‧‧‧ (1) is over 95%, and (2) is less than 1%.
△‧‧‧(1)為95%以上，且(2)多於1%但未達5%。 △ ‧‧‧ (1) is more than 95%, and (2) is more than 1% but less than 5%.
×‧‧‧(1)未達95%，或(2)為5%以上。 × ‧‧‧ (1) less than 95%, or (2) more than 5%.
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。 The test is a ratio (L2 / L1) of the length L2 of the front end face of the rectifying section 31b to the wall surface of the classification member 32 located at a position facing the front end to the length L1 of the rectifying section 31b, and the diameter D2 of the rectifying member 31. The ratio (D2 / D1) with respect to the diameter D1 of the suction member 33 and the air volume in the rectifying section 31b are changed, respectively. The results are recorded in Table 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2.1~3.6m3/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2.1~3.6m3/min之情形均為「×」評價，判明分級性能較差(比較例1、2)。 The ratio L2 (L2 / L1) of the length L2 from the front end surface of the rectifying portion 31b to the wall surface of the classification member 32 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 The ratio (D2 / D1) with respect to the diameter D1 of the suction member 33 is 1.50 to 2.00, and the case where the air volume in the rectifying section 31b is 2.1 to 3.6 m 3 / min is evaluated as "△" or "○" (implementation Examples 1 ~ 8). Examples 1 and 4 in which L2 / L1 or D2 / D1 are relatively low are "△" evaluations, which indicate that although the classification performance is slightly inferior, as long as the conditions are optimized, the "○" evaluation is achieved. Therefore, it is suggested that it can be fully applied to a jet processing apparatus. On the other hand, the cases where the air volume does not deviate from 2.1 to 3.6 m 3 / min are all evaluated by “×”, and it is found that the classification performance is poor (Comparative Examples 1, 2).
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。 As described above, it is possible to provide a miniaturized and stable jet processing and operation. Jet processing device and jet processing method with excellent properties.
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| JPH02284868A (en) * | 1989-02-16 | 1990-11-22 | Leif E Stern | Device for separating blasting dust from blasting agent |
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