JP2006167850A - Shot blast method and device - Google Patents
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Abstract
Description
本発明は、ショットブラスト方法及び装置に関する。 The present invention relates to a shot blasting method and apparatus.
従来、ワークへ投射材を投射するショットブラスト装置としては、例えば、バッチ式の回転ドラム型ショットブラスト装置が公知にされている（例えば、特許文献１参照）。 Conventionally, as a shot blasting apparatus for projecting a projection material onto a workpiece, for example, a batch-type rotary drum type shot blasting apparatus has been publicly known (see, for example, Patent Document 1).
しかし、特許文献１のような装置では、回転ドラム内で複数のワークを攪拌・転倒させながらバッチ式で投射処理するため、ワークの割れ、欠け、打痕による不良がさけられないという問題がある。これを解決するには、ワークを１個ずつ投射処理することが考えられる。しかし、この場合においてもワークが鋳造品であると次のような問題がある。鋳造品は中子を有し、該中子は該鋳造品の穴部に詰まっている。ここに投射した場合、最初、中子は少し崩れて排出されるが、これに伴い、中子で隠れていた鋳造品の穴部が現れてくる。そうすると該穴部の中に投射材が中子表面を覆うように滞留し、該滞留する投射材と常時投射される投射材とが干渉するため、中子除去及び該穴部内の研掃が効率よくできない。この問題を解決するには、前記常時投射の単位時間当りの投射量を少なくすることが考えられるが、これでは投射処理時間が長くかかってしまう。また該常時投射の単位時間当りの投射量を多くすると前記穴部の中に滞留する投射材と常時投射される投射材との干渉が、よりひどくなってしまう。 However, in the apparatus as disclosed in Patent Document 1, since a plurality of workpieces are agitated and overturned in a rotating drum and projected by a batch method, there is a problem that defects due to cracks, chips, and dents on the workpieces cannot be avoided. . In order to solve this, it is conceivable to perform projection processing for each workpiece. However, even in this case, there are the following problems when the workpiece is a cast product. The cast product has a core, and the core is clogged in the hole of the cast product. When projecting here, the core is broken and discharged at first, but with this, a hole of the casting that has been hidden by the core appears. Then, the projection material stays in the hole so as to cover the core surface, and the staying projection material interferes with the constantly projected projection material. Therefore, the removal of the core and the cleaning in the hole are efficient. I can't do it well. In order to solve this problem, it is conceivable to reduce the projection amount per unit time of the regular projection, but this takes a long projection processing time. Further, when the projection amount per unit time of the constant projection is increased, the interference between the projection material staying in the hole and the projection material constantly projected becomes more serious.
本発明は、上記の問題に鑑みて成されたもので、中子を有する鋳造品のワークの割れ、欠け、打痕による不良を防止することができると共に、中子の除去及び該中子の排出に伴って現れる鋳造品の穴部内の研掃を効率よく短時間で行うことができるショットブラスト方法及び装置を提供することを目的とする。 The present invention has been made in view of the above problems, and can prevent defects due to cracks, chips, and dents in a workpiece having a core, as well as removal of the core and the core. It is an object of the present invention to provide a shot blasting method and apparatus capable of efficiently and quickly performing polishing in a hole portion of a cast product that appears with discharge.
上記の目的を達成するために本発明におけるショットブラスト方法は、キャビネットの内部に形成された投射室内において、中子を有する鋳造品の１個のワークを自転させながら該自転する前記ワークに投射材を投射することにより、前記ワークを１個ずつ投射処理するショットブラスト方法であって、前記ワークに投射材を投射する工程が、前記ワークに投射材を連続投射する第１工程と、前記ワークに投射材を間欠投射する第２工程と、前記ワークに投射材を連続投射する第３工程と、を有することを特徴とする。 In order to achieve the above object, the shot blasting method according to the present invention includes a projection material applied to the rotating workpiece while rotating one workpiece of a cast product having a core in a projection chamber formed inside the cabinet. Is a shot blasting method for projecting the workpieces one by one, and the step of projecting the projection material onto the workpiece includes a first step of projecting the projection material onto the workpiece and the workpiece. It has the 2nd process of intermittently projecting a projection material, and the 3rd process of projecting a projection material continuously on the work.
また本発明におけるショットブラスト方法は、前記連続投射する第１工程及び第３工程より前記間欠投射する第２工程の方の投射量を少なくしたことを特徴とする。 The shot blasting method according to the present invention is characterized in that the amount of projection in the second step of intermittent projection is smaller than that of the first step and third step of continuous projection.
また上記の目的を達成するために本発明におけるショットブラスト装置は、中子を有する鋳造品のワークを１個ずつ投射処理するショットブラスト装置であって、キャビネットの内部に形成され、前記ワークへの投射材の投射がなされる投射室と、１個の前記ワークが載置されると共に前記投射室内で自転可能にされたワーク受け治具と、前記投射室内において前記ワーク受け治具に載置された状態で自転する前記ワークへ投射材を連続投射及び間欠投射する投射手段と、を具備することを特徴とする。 In order to achieve the above object, a shot blasting apparatus according to the present invention is a shot blasting apparatus that projects one by one a workpiece of a cast product having a core, and is formed inside a cabinet. A projection chamber in which a projection material is projected, a workpiece receiving jig on which one of the workpieces is placed and capable of rotating in the projection chamber, and a workpiece receiving jig placed in the projection chamber. Projecting means for continuously projecting and intermittently projecting the projection material onto the workpiece that rotates in a state of rotation.
なお本発明においてショットブラスト装置とは、ワークへ投射材を投射するもののことをいい、ショットピーニング装置等も含まれる。 In the present invention, the shot blasting device refers to a device that projects a projection material onto a workpiece, and includes a shot peening device and the like.
本発明は、キャビネットの内部に形成された投射室内において、中子を有する鋳造品の１個のワークを自転させながら該自転する前記ワークに投射材を投射することにより、前記ワークを１個ずつ投射処理するショットブラスト方法であって、前記ワークに投射材を投射する工程が、前記ワークに投射材を連続投射する第１工程と、前記ワークに投射材を間欠投射する第２工程と、前記ワークに投射材を連続投射する第３工程と、を有するようにしたから、中子を有する鋳造品のワークの割れ、欠け、打痕による不良を防止することができると共に、中子の除去及び該中子の排出に伴って現れる鋳造品の穴部内の研掃を効率よく短時間で行うことができる等種々の効果がある。 In the projection chamber formed inside the cabinet, the present invention projects the projecting material onto the rotating workpiece while rotating one workpiece of a cast product having a core, thereby moving the workpieces one by one. A shot blasting method for performing projection processing, wherein the step of projecting a projection material onto the workpiece includes a first step of continuously projecting the projection material onto the workpiece, a second step of intermittently projecting the projection material onto the workpiece, And the third step of continuously projecting the projecting material onto the workpiece, so that it is possible to prevent defects due to cracks, chips, and dents in the workpiece of the casting having the core, and to remove the core and There are various effects, such as the ability to efficiently polish the hole in the hole of the casting that appears as the core is discharged.
以下、本発明の実施の形態を図面に基づいて詳しく説明する。図１において、箱状のキャビネット１内における下位部には、公転板２が配設されており、該公転板２上には複数の仕切り部材３、３（図２参照）が固定されている。なお該公転板２及び仕切り部材３、３は公転軸４を中心にしてモータ５で回転されるようになっている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, a revolving plate 2 is disposed at a lower portion in the box-shaped cabinet 1, and a plurality of partition members 3 and 3 (see FIG. 2) are fixed on the revolving plate 2. . The revolution plate 2 and the partition members 3 and 3 are rotated by a motor 5 around the revolution shaft 4.
また前記仕切り部材３、３によって前記キャビネット１の内部には、ワークＷの搬入を行う搬入室６と、ワークＷへの投射材（例えば、鋼球ショット）の投射がなされる投射室７と、ワークＷの搬出を行う搬出室８と、が形成されるようになっている（図２参照）。なお本実施形態においてワークＷは中子を有する鋳造品で、具体的にいうと自動車部品のデフキャリアである。 Moreover, the inside of the cabinet 1 by the partition members 3 and 3 is a carry-in chamber 6 for carrying in the workpiece W, and a projection chamber 7 in which a projection material (for example, a steel ball shot) is projected onto the workpiece W, An unloading chamber 8 for unloading the workpiece W is formed (see FIG. 2). In the present embodiment, the workpiece W is a cast product having a core, specifically, a differential carrier for automobile parts.
そして、該搬入室６、投射室７及び搬出室８内には各々、ワーク受け治具９が配設されており、該ワーク受け治具９の中央下部には自転軸１０が固定されている。そして、該自転軸１０は前記公転板２の下方に配設された自転板１１に連結されており、該自転板１１は前記投射室７において図示されない駆動手段（例えば、モータ）で回転されるようになっている。 A work receiving jig 9 is provided in each of the carry-in chamber 6, the projection chamber 7, and the carry-out chamber 8, and a rotation shaft 10 is fixed to the lower center of the work receiving jig 9. . The rotation shaft 10 is connected to a rotation plate 11 disposed below the revolving plate 2, and the rotation plate 11 is rotated in the projection chamber 7 by a driving means (for example, a motor) not shown. It is like that.
また図３に示すように、前記キャビネット１の下部には、前記投射室７から落下する投射材を回収して水平方向に搬送する第１投射材搬送手段としてのスクリューコンベア１２が水平に配置されて連通連結されており、該スクリューコンベア１２の先端には、該スクリューコンベア１２で搬送されてきた投射材を上方に搬送する第２投射材搬送手段としてのバケットエレベータ１３が連結されている。なお該バケットエレベータ１３は垂直に配置され、下位部が前記スクリューコンベア１２に連通されている。また前記投射室７の側壁の上位部及び下位部には、投射手段としての遠心投射機１４ａ、１４ｂが装着されている。 As shown in FIG. 3, a screw conveyor 12 serving as a first projection material conveying unit that horizontally collects the projection material falling from the projection chamber 7 and conveys the projection material in a horizontal direction is horizontally disposed in the lower portion of the cabinet 1. A bucket elevator 13 is connected to the tip of the screw conveyor 12 as a second projection material conveying means for conveying the projection material conveyed by the screw conveyor 12 upward. The bucket elevator 13 is arranged vertically, and the lower part communicates with the screw conveyor 12. Further, centrifugal projectors 14a and 14b as projection means are mounted on the upper and lower portions of the side wall of the projection chamber 7.
また前記バケットエレベータ１３の上位部にはシュート１５（図１参照）を介して第３投射材搬送手段としてのスクリューコンベア１６が水平に配置されて連通連結されており、架台１７上には箱体１８が設置されている。そして、該箱体１８の上位内部にはロータリースクリーン（回転式の篩）１９が配設されており、該箱体１８の下位内部は風選式の投射材セパレータ２０（図１参照）になっている。なお前記スクリューコンベア１６の先端は前記ロータリースクリーン１９の内部まで伸びている。 Further, a screw conveyor 16 as a third projection material conveying means is horizontally arranged and connected to the upper part of the bucket elevator 13 via a chute 15 (see FIG. 1). 18 is installed. A rotary screen (rotary sieve) 19 is disposed in the upper part of the box 18, and the lower part of the box 18 is a wind-selective projection material separator 20 (see FIG. 1). ing. The tip of the screw conveyor 16 extends to the inside of the rotary screen 19.
また前記箱体１８の下部には投射材タンク２１及び異物排出シュート２２が連通連結されており、前記ロータリースクリーン１９の先端から排出された大きめの異物（例えば、鋳バリ）は該異物排出シュート２２を通って装置の外に排出される。また前記投射材タンク２１の下部には投射材通路を開閉する開閉ゲート２３、２４が連結されている。そして、図示されない導入管を介して、該開閉ゲート２３は前記上位部の遠心投射機１４ａに、該開閉ゲート２４は前記下位部の遠心投射機１４ｂに連結されている。 A projecting material tank 21 and a foreign matter discharge chute 22 are connected to the lower portion of the box 18, and a large foreign matter (for example, cast burr) discharged from the tip of the rotary screen 19 is connected to the foreign matter discharge chute 22. And is discharged out of the device. Opening and closing gates 23 and 24 for opening and closing the projection material passage are connected to the lower portion of the projection material tank 21. The open / close gate 23 is connected to the upper centrifugal projector 14a, and the open / close gate 24 is connected to the lower centrifugal projector 14b through an introduction pipe (not shown).
なお前記開閉ゲート２３、２４には各々、ゲート開閉シリンダ２３ａ、２４ａが付属されており、該開閉ゲート２３、２４は該ゲート開閉シリンダ２３ａ、２４ａにより開閉作動される。該ゲート開閉シリンダ２３ａ、２４ａは本実施形態では２段エアシリンダであり、ゲート開閉位置としては、全開、全閉、全開と全閉の途中位置の３種類がある。なお本実施形態では前記全開と全閉の途中位置のことを「半開」と呼ぶ。 The open / close gates 23 and 24 are provided with gate open / close cylinders 23a and 24a, respectively. The open / close gates 23 and 24 are opened and closed by the gate open / close cylinders 23a and 24a. The gate opening / closing cylinders 23a and 24a are two-stage air cylinders in the present embodiment, and there are three types of gate opening / closing positions: fully open, fully closed, fully open and fully closed. In the present embodiment, the halfway position between the full open and the full close is referred to as “half open”.
このように構成されたものの作動について説明する。まず、搬入室６内のワーク受け治具９に１個のワークＷを載置する。そして、モータ５が作動し、公転板２及び仕切り部材３、３が公転軸４を中心にして１２０度回転され、ワーク受け治具９に載置された状態の該ワークＷが投射室７内に移動される。次に、投射室７において、前記図示されない駆動手段が作動し、自転板１１を介して自転軸１０が回転される。これにより、投射室７内のワーク受け治具９は自転軸１０を中心にして自転する。 The operation of the apparatus configured as described above will be described. First, one workpiece W is placed on the workpiece receiving jig 9 in the carry-in chamber 6. Then, the motor 5 is actuated so that the revolving plate 2 and the partition members 3 and 3 are rotated 120 degrees about the revolving shaft 4, and the work W placed on the work receiving jig 9 is placed in the projection chamber 7. Moved to. Next, in the projection chamber 7, the driving means (not shown) is operated, and the rotation shaft 10 is rotated via the rotation plate 11. Thereby, the workpiece receiving jig 9 in the projection chamber 7 rotates about the rotation axis 10.
次に、前記遠心投射機１４ａ、１４ｂの作動により、該ワーク受け治具９に載置された状態で自転軸１０を中心にして自転するワークＷへ投射材が投射される。ここでは第１〜第３の三つの工程を経るようになっており、以下、この点について詳述する。まず、第１工程では、開閉ゲート２３、２４を全開にした状態でワークＷに投射材を連続投射する。なお本発明において連続投射とは、ワークへの投射を連続して行い、該投射状態を持続することをいう。この第１工程により、ワークＷ及び中子（図示せず）に予備的に衝撃を与え、中子を崩壊しやすくする。なお該第１工程では、連続投射時間は６秒、投射量は２５０ｋｇ／ｍｉｎにされている。 Next, by the operation of the centrifugal projectors 14 a and 14 b, the projection material is projected onto the workpiece W that rotates around the rotation shaft 10 while being placed on the workpiece receiving jig 9. Here, the first to third steps are performed, and this point will be described in detail below. First, in a 1st process, a projection material is continuously projected on the workpiece | work W in the state which opened and closed the gates 23 and 24 fully. In the present invention, continuous projection means that projection onto a workpiece is continuously performed and the projection state is maintained. By this first step, the workpiece W and the core (not shown) are preliminarily impacted to facilitate the collapse of the core. In the first step, the continuous projection time is 6 seconds and the projection amount is 250 kg / min.
次に、第２工程では、開閉ゲート２３、２４の半開−全閉を繰り返し、ワークＷに投射材を間欠投射する。なお本発明において間欠投射とは、投射−投射停止を繰り返し、ワークへの投射を間欠的に行うことをいう。この第２工程では、所定時間毎に投射を一時停止することにより、中子の排出に伴って現れる鋳造品の穴部の中に滞留する投射材と常時投射される投射材との干渉を防止し、該一時停止時に、該穴部の中に滞留する投射材、及び崩れた中子を排出する。このため、中子の除去及び該穴部内の研掃を効率よく短時間で行うことができる。なお該第２工程の実施形態をさらに詳しく説明すると、「開閉ゲート２３、２４半開で２秒投射」−「開閉ゲート２３、２４全閉で１秒投射停止」を６回繰り返す。この際、投射量は５０ｋｇ／ｍｉｎにされている。 Next, in the second step, the open / close gates 23 and 24 are repeatedly half-opened and fully closed, and the projection material is intermittently projected onto the workpiece W. In the present invention, intermittent projection means that projection-projection stop is repeated and projection onto the workpiece is performed intermittently. In this second step, the projection is temporarily stopped every predetermined time, thereby preventing interference between the projection material staying in the hole of the cast product that appears with the discharge of the core and the projection material constantly projected. At the time of the temporary stop, the projection material staying in the hole and the broken core are discharged. For this reason, the removal of the core and the cleaning in the hole can be efficiently performed in a short time. The embodiment of the second step will be described in more detail. The “opening / closing gate 23, 24 half-open projection for 2 seconds”-“opening / closing gate 23, 24 fully closed for 1 second projection stop” is repeated 6 times. At this time, the projection amount is set to 50 kg / min.
次に、第３工程では、開閉ゲート２３、２４を全開にした状態でワークＷに投射材を連続投射する。この第３工程により、ワークＷの最終的な仕上げ研掃を行う。なお該第３工程では、連続投射時間は６秒、投射量は２５０ｋｇ／ｍｉｎにされている。 Next, in the third step, the projection material is continuously projected onto the workpiece W with the open / close gates 23 and 24 fully opened. In this third step, the final finishing of the workpiece W is performed. In the third step, the continuous projection time is 6 seconds and the projection amount is 250 kg / min.
ワークＷへの投射材の投射は、このようにして行われるが、この間に搬入室６内の空のワーク受け治具９に次のワークＷを１個載置する。また投射室７から落下する投射材は前記スクリューコンベア１２で回収され、前記バケットエレベータ１３に搬送される。そして、該バケットエレベータ１３で上方に搬送されてシュート１５を介して前記スクリューコンベア１６に投入される。そして、該投入された投射材は該スクリューコンベア１６により、回転中の前記ロータリースクリーン１９の内部に搬送される。 While the projection material is projected onto the workpiece W in this way, one next workpiece W is placed on the empty workpiece receiving jig 9 in the carry-in chamber 6 during this time. Further, the projection material falling from the projection chamber 7 is collected by the screw conveyor 12 and conveyed to the bucket elevator 13. Then, it is transported upward by the bucket elevator 13 and put into the screw conveyor 16 through a chute 15. The thrown projection material is conveyed by the screw conveyor 16 into the rotating rotary screen 19.
そして、該ロータリースクリーン１９の回転により、投射材はロータリースクリーン１９の網目（図示せず）を通って前記投射材セパレータ２０に落下する。なお鋳バリ等の大きめの異物は該ロータリースクリーン１９の先端から排出され、異物排出シュート２２を通って装置の外に排出される。そして、前記投射材セパレータ２０で投射材から不純物（例えば、微粉や砂）が分離され、該不純物が分離された投射材は投射材タンク２１に落下して循環使用される。 Then, due to the rotation of the rotary screen 19, the projection material falls through the mesh (not shown) of the rotary screen 19 to the projection material separator 20. Large foreign matters such as cast burrs are discharged from the tip of the rotary screen 19 and are discharged out of the apparatus through the foreign matter discharge chute 22. Then, impurities (for example, fine powder and sand) are separated from the projection material by the projection material separator 20, and the projection material from which the impurities are separated falls into the projection material tank 21 and is circulated for use.
また前記第３工程終了後、開閉ゲート２３、２４が全閉にされる。その後、前記図示されない駆動手段の作動が停止され、ワーク受け治具９及びワークＷの自転が停止される。そして、モータ５が作動し、公転板２及び仕切り部材３、３が公転軸４を中心にして１２０度回転される。これにより、投射処理済みのワークＷがワーク受け治具９に載置された状態で投射室７内から搬出室８内に移動され、次に投射処理するワークＷがワーク受け治具９に載置された状態で搬入室６内から投射室７内に移動される。 After the third step, the open / close gates 23 and 24 are fully closed. Thereafter, the operation of the driving means (not shown) is stopped, and the rotation of the workpiece receiving jig 9 and the workpiece W is stopped. Then, the motor 5 is operated, and the revolving plate 2 and the partition members 3 and 3 are rotated 120 degrees around the revolving shaft 4. Thus, the workpiece W that has been subjected to the projection processing is moved from the inside of the projection chamber 7 into the carry-out chamber 8 in a state where the workpiece W is placed on the workpiece receiving jig 9, and the workpiece W to be projected next is placed on the workpiece receiving jig 9. In the placed state, it is moved from the carry-in chamber 6 into the projection chamber 7.
そして、該投射室７内に移動されたワークＷは、上述と同様の作動により投射処理される。また、この間に、搬出室８内の投射処理済みのワークＷは該搬出室８内のワーク受け治具９から搬出され、搬入室６内の空のワーク受け治具９には次のワークＷが１個載置される。そして、上述の作動を繰り返すことにより、多数のワークＷを順次、１個ずつ投射処理していく。 Then, the workpiece W moved into the projection chamber 7 is projected by the same operation as described above. During this time, the projection-processed workpiece W in the unloading chamber 8 is unloaded from the workpiece receiving jig 9 in the unloading chamber 8, and the empty workpiece receiving jig 9 in the loading chamber 6 receives the next workpiece W. Is mounted. Then, by repeating the above-described operation, a number of workpieces W are sequentially projected one by one.
なお本発明において前記第１〜第３工程は同じ投射量でもよいが、上述した実施形態で示したように、前記連続投射する第１工程及び第３工程より前記間欠投射する第２工程の方の投射量を少なくすると、中子の排出に伴って現れる鋳造品の穴部の中における投射材の滞留が、より発生しにくくなるため好ましい。なお前記連続投射する第１工程及び第３工程より前記間欠投射する第２工程の方の投射量を少なくするには、上述したように、前記連続投射する第１工程及び第３工程における投射の際には開閉ゲート２３、２４を全開にし、前記間欠投射する第２工程における投射の際には開閉ゲート２３、２４を半開にすればよい。 In the present invention, the first to third steps may have the same projection amount, but as shown in the above-described embodiment, the first step for continuous projection and the second step for intermittent projection from the third step. It is preferable to reduce the amount of projection because the retention of the projection material in the hole of the cast product that appears as the core is discharged is less likely to occur. In order to reduce the projection amount of the second step of intermittent projection than the first step and third step of continuous projection, as described above, the projection of the first step and third step of continuous projection is performed. At this time, the open / close gates 23 and 24 may be fully opened, and the open / close gates 23 and 24 may be half open at the time of projection in the second step of intermittent projection.
また本発明の実施形態では、ゲート開閉シリンダ２３ａ、２４ａとして２段エアシリンダを用いたが、これに限定されるものではなく、この他に例えば、ピストンロッドが所望の位置で停止可能な電動シリンダを用いるようにしてもよい。 In the embodiment of the present invention, the two-stage air cylinder is used as the gate opening / closing cylinders 23a, 24a. However, the present invention is not limited to this. For example, an electric cylinder in which a piston rod can be stopped at a desired position. May be used.
１ キャビネット
７ 投射室
９ ワーク受け治具
１４ａ １４ｂ 投射手段
Ｗ ワーク
1 cabinet 7 projection chamber 9 work receiving jig 14a 14b projection means W work
Claims (3)
A shot blasting device for projecting a workpiece of a cast product having a core one by one, a projection chamber formed inside a cabinet and projecting a projection material onto the workpiece, and the one workpiece A workpiece receiving jig that is placed and capable of rotating in the projection chamber, and continuously projecting and intermittently projecting the projection material onto the workpiece that rotates in a state of being placed on the workpiece receiving jig in the projection chamber. A shot blasting apparatus comprising: a projecting unit;
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004362580A JP2006167850A (en) | 2004-12-15 | 2004-12-15 | Shot blast method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2004362580A JP2006167850A (en) | 2004-12-15 | 2004-12-15 | Shot blast method and device |
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| Publication Number | Publication Date |
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| JP2006167850A true JP2006167850A (en) | 2006-06-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119759A (en) * | 2006-11-08 | 2008-05-29 | Sinto Brator Co Ltd | Shot blasting device and shot blasting method |
| JP2008200810A (en) * | 2007-02-21 | 2008-09-04 | Sintokogio Ltd | Method and apparatus for shot blasting workpiece having groove |
| WO2009001639A1 (en) * | 2007-06-22 | 2008-12-31 | Sintokogio, Ltd. | Shot-treating apparatus |
| CN102126186A (en) * | 2011-01-06 | 2011-07-20 | 满城县永红铸造机械有限公司 | Incline barrel-type shot-blasting machine |
| CN102371545A (en) * | 2011-11-02 | 2012-03-14 | 无锡富岛精工有限公司 | Die shot blast machine |
| CN102990515A (en) * | 2011-09-09 | 2013-03-27 | 上海中国弹簧制造有限公司 | Stress shot-blasting machine |
-
2004
- 2004-12-15 JP JP2004362580A patent/JP2006167850A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008119759A (en) * | 2006-11-08 | 2008-05-29 | Sinto Brator Co Ltd | Shot blasting device and shot blasting method |
| JP2008200810A (en) * | 2007-02-21 | 2008-09-04 | Sintokogio Ltd | Method and apparatus for shot blasting workpiece having groove |
| WO2009001639A1 (en) * | 2007-06-22 | 2008-12-31 | Sintokogio, Ltd. | Shot-treating apparatus |
| JPWO2009001639A1 (en) * | 2007-06-22 | 2010-08-26 | 新東工業株式会社 | Shot processing device |
| CN102126186A (en) * | 2011-01-06 | 2011-07-20 | 满城县永红铸造机械有限公司 | Incline barrel-type shot-blasting machine |
| CN102990515A (en) * | 2011-09-09 | 2013-03-27 | 上海中国弹簧制造有限公司 | Stress shot-blasting machine |
| CN102371545A (en) * | 2011-11-02 | 2012-03-14 | 无锡富岛精工有限公司 | Die shot blast machine |
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