JP4534251B2 - Rotating drum type shot blasting equipment - Google Patents
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- JP4534251B2 JP4534251B2 JP2005109914A JP2005109914A JP4534251B2 JP 4534251 B2 JP4534251 B2 JP 4534251B2 JP 2005109914 A JP2005109914 A JP 2005109914A JP 2005109914 A JP2005109914 A JP 2005109914A JP 4534251 B2 JP4534251 B2 JP 4534251B2
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Description
本発明は、回転ドラム型ショットブラスト装置の改良に関する。 The present invention relates to an improvement of a rotary drum type shot blasting apparatus.
従来、この種の装置の一つとして、傾動可能に設けられた傾動フレームと、この傾動フレーム内に回転可能に設けられ有底円筒状を成す製品収納用の回転ドラムと、この回転ドラムの一端開口部を開閉可能でありかつ回転ドラム内に向けてショットを投射するショット投射装置を装着した開閉扉と、で構成されたものがある。
しかし、このように構成された従来の回転ドラム型ショットブラスト装置では、回転ドラムを開閉扉に対して回転可能にすべく回転ドラムの一端と開閉扉との間に若干の隙間を設けており、そのため、投射されたショットがその隙間から外に飛び出すなどの問題があった。 However, in the conventional rotary drum type shot blasting apparatus configured as described above, a slight gap is provided between one end of the rotary drum and the open / close door so that the rotary drum can be rotated with respect to the open / close door. Therefore, there is a problem that the projected shot jumps out from the gap.
本発明は、上記の事情に鑑みてなされたもので、その目的は、回転ドラムの一端と開閉扉との間の隙間からショットが飛び出すのを防止できるようにした回転ドラム型ショットブラスト装置を提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a rotating drum type shot blasting device capable of preventing shots from jumping out from a gap between one end of the rotating drum and the open / close door. There is to do.
上記の目的を達成するため、本発明における回転ドラム型ショットブラスト装置は、製品をバッチ的にショットブラストする装置であって、斜め上向きにして傾動可能に配設された箱状のキャビネットと、このキャビネット内に一端開口部をキャビネットの開口部と対向させて垂直面内で回転可能に設けられ有底円筒状を成すとともに胴部にショットが通過可能な孔を多数有する製品収納用の回転ドラムと、前記キャビネットおよび前記回転ドラムの各開口部を開閉可能でありかつこれらの開口部の閉鎖時に前記回転ドラム内に向けてショットを投射可能なショット投射装置を装着した開閉扉と、前記キャビネットの開口部と前記開閉扉とに設けられこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記キャビネットおよび前記回転ドラムの各開口部と前記開閉扉との間の隙間を閉鎖可能なラビリンス機構と、前記開閉扉の内面に装着されこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記開閉扉と前記ラビリンス機構との間の隙間を閉鎖可能でかつ弾性を有する環状のシール部材と、を具備したことを特徴とする。 In order to achieve the above object, a rotating drum type shot blasting apparatus according to the present invention is an apparatus for batch blasting products, and is a box-shaped cabinet that is tilted upward and can be tilted. A rotating drum for product storage having a plurality of holes through which a shot is allowed to pass in a body portion, which is provided in a cabinet so as to be rotatable in a vertical plane with one end opening facing the opening of the cabinet. An opening / closing door equipped with a shot projection device capable of opening and closing each opening of the cabinet and the rotating drum and projecting a shot into the rotating drum when the opening is closed, and an opening of the cabinet When the opening and closing doors close the openings of the cabinet and the rotary drum, the cabinet And a labyrinth mechanism capable of closing a gap between the opening of each of the rotating drum and the rotary drum and the opening / closing door, and the opening / closing door mounted on the inner surface of the opening / closing door closes the opening of the cabinet and the rotating drum. And an annular sealing member that can close a gap between the open / close door and the labyrinth mechanism and has elasticity.
このように構成されたものは、回転ドラムの一端開口部から飛び出したショットが外部に飛散するのを、ラビリンス機構およびシール部材によって阻止されることとなる。 In such a configuration, the labyrinth mechanism and the seal member prevent the shot that has jumped out from the one end opening of the rotating drum from scattering to the outside.
以上の説明からも明らかなように本発明は、製品をバッチ的にショットブラストする装置であって、斜め上向きにして傾動可能に配設された箱状のキャビネットと、このキャビネット内に一端開口部をキャビネットの開口部と対向させて垂直面内で回転可能に設けられ有底円筒状を成すとともに胴部にショットが通過可能な孔を多数有する製品収納用の回転ドラムと、前記キャビネットおよび前記回転ドラムの各開口部を開閉可能でありかつこれらの開口部の閉鎖時に前記回転ドラム内に向けてショットを投射可能なショット投射装置を装着した開閉扉と、前記キャビネットの開口部と前記開閉扉とに設けられこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記キャビネットおよび前記回転ドラムの各開口部と前記開閉扉との間の隙間を閉鎖可能なラビリンス機構と、前記開閉扉の内面に装着されこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記開閉扉と前記ラビリンス機構との間の隙間を閉鎖可能でかつ弾性を有する環状のシール部材と、を具備したから、回転ドラムの一端開口部から飛び出したショットが外部に飛散するのを適確に防止することができるなどの優れた実用的効果を奏する。 As is clear from the above description, the present invention is a device for batch blasting products, and is a box-shaped cabinet disposed obliquely upward and tiltable upward, and one end opening in the cabinet. A rotating drum for storing a product having a cylindrical shape with a bottom and a hole that allows a shot to pass through the trunk, and the cabinet and the rotation. Opening and closing doors equipped with a shot projection device capable of opening and closing each opening of the drum and projecting a shot into the rotating drum when these openings are closed, the opening of the cabinet and the opening and closing door Provided when the opening and closing door closes each opening of the cabinet and the rotating drum, and each opening of the cabinet and the rotating drum, A labyrinth mechanism capable of closing a gap between the opening and closing door, and the opening and closing door and the labyrinth mechanism mounted on the inner surface of the opening and closing door when the opening and closing door closes each opening of the cabinet and the rotating drum. An annular sealing member that can close the gap between the rotating drum and the elastic member, so that it is possible to appropriately prevent the shot that has jumped out from the opening at one end of the rotating drum from being scattered outside. Has excellent practical effects.
以下、発明を適用した回転ドラム型ショットブラスト装置の最良の形態について図１〜図３に基づき詳細に説明する。本回転ドラム型ショットブラスト装置は、図１に示すように、斜め上向きにして傾動可能に配設された箱状のキャビネット1と、このキャビネット1内に一端開口部をキャビネット1の開口部と対向させて垂直面内で回転可能に設けられ有底円筒状を成すとともに胴部にショットが通過可能な孔を多数有する製品収納用の回転ドラム5と、前記キャビネット1および前記回転ドラム5の各開口部を開閉可能でありかつこれらの開口部の閉鎖時に前記回転ドラム5内に向けてショットを投射可能なショット投射装置21を装着した開閉扉8と、前記キャビネット1の開口部と前記開閉扉8とに設けられこの開閉扉8が前記キャビネット1および前記回転ドラム5の各開口部を閉じた時、前記キャビネット1および前記回転ドラム5の各開口部と前記開閉扉8との間の隙間を閉鎖可能なラビリンス機構22と、前記開閉扉8の内面に装着されこの開閉扉8が前記キャビネット1および前記回転ドラム5の各開口部を閉じた時、前記開閉扉8と前記ラビリンス機構22との間の隙間を閉鎖可能でかつ弾性を有する環状のシール部材23と、で構成してある。 Hereinafter, the best mode of a rotary drum type shot blasting apparatus to which the invention is applied will be described in detail with reference to FIGS. As shown in FIG. 1, the rotary drum type shot blasting apparatus has a box-shaped cabinet 1 disposed obliquely upward and tiltable upward, and one end opening is opposed to the opening of the cabinet 1 in the cabinet 1. A rotating drum 5 for product storage having a bottomed cylindrical shape that is rotatably provided in a vertical plane and has a number of holes through which a shot can pass, and each opening of the cabinet 1 and the rotating drum 5 Open / close door 8 equipped with a shot projection device 21 capable of projecting a shot into the rotary drum 5 when these openings are closed, and the opening of the cabinet 1 and the open / close door 8 When the opening / closing door 8 is provided in the cabinet 1 and each opening of the rotating drum 5 is closed, a gap between each opening of the cabinet 1 and the rotating drum 5 and the opening / closing door 8 is provided. A labyrinth mechanism 22 that can be closed, and is attached to the inner surface of the opening / closing door 8, and when the opening / closing door 8 closes each opening of the cabinet 1 and the rotary drum 5, the opening / closing door 8 and the labyrinth mechanism 22 And an annular seal member 23 that can close the gap between them and has elasticity.
そして、前記キャビネット1は機台4に１対の支持軸２・２および軸受３・３を介して傾動自在に設置してある。また、前記回転ドラム５は、前記キャビネット1内に装着された２組の受けローラユニット６・６と、前記キャビネット1に装着された支持軸ユニット７とにより回転可能に保持して装着してある。 The cabinet 1 is installed on the machine base 4 in a tiltable manner via a pair of support shafts 2 and 2 and bearings 3 and 3. The rotating drum 5 is rotatably held by two sets of receiving roller units 6 and 6 mounted in the cabinet 1 and a support shaft unit 7 mounted in the cabinet 1. .
また、前記開閉扉８の上部および下部には、２対の第１・第２アーム１０・１０および１８・１８の一端が、２対の継手ピン９・９および１７・１７をそれぞれ介してそれぞれ上下回動自在に装着してあり、これら２対の第１・第２アーム１０・１０・１８・１８のうち１対の第１アーム１０・１０の他端は、前記キャビネット1の上部に１対の軸受１２・１２を介して装着された１対の支持軸１１・１１に固着してあり、また、１対の第２アーム１８・１８の他端は前記１対の支持軸２・２にそれぞれ固着してある。また、前記支持軸１１の一側部には前記キャビネット1の上部に装着された減速機付モータ１４の出力軸が鎖車１３・１５およびローラチェーン１６を介して連結してある。 Further, at the upper and lower portions of the opening / closing door 8, two ends of the first and second arms 10, 10 and 18, 18 are respectively connected via two pairs of joint pins 9, 9 and 17, 17 respectively. The other end of the pair of first arms 10 and 10 out of the two pairs of first and second arms 10, 10, 18, and 18 is 1 above the cabinet 1. The pair of support shafts 11 and 11 are fixed to the pair of support shafts 11 and 11 and the other ends of the pair of second arms 18 and 18 are connected to the pair of support shafts 2 and 2. Are fixed to each. An output shaft of a motor 14 with a speed reducer mounted on the upper portion of the cabinet 1 is connected to one side of the support shaft 11 via chain wheels 13 and 15 and a roller chain 16.
これにより、前記開閉扉８は、前記減速機付モータ１４の正逆駆動による前記支持軸１１の正逆回転により、二点鎖線で図示するように旋回移動して前記キャビネット1および前記回転ドラム5の各開口部を開閉するようになっている。 As a result, the opening / closing door 8 pivots as shown by a two-dot chain line by forward / reverse rotation of the support shaft 11 by forward / reverse driving of the motor 14 with a speed reducer, thereby causing the cabinet 1 and the rotating drum 5 to rotate. Each opening is opened and closed.
また、前記ラビリンス機構２２は、図２および図３に示すように、前記キャビネット1の開口部の内面に装着され円筒状を成すとともに前記開閉扉8が前記キャビネット1および前記回転ドラム5の各開口部を閉じた時に前記シール部材２３を所要寸法圧縮可能な長さを有する第１遮蔽部材24と、この第１遮蔽部材24の内面に固着され前記回転ドラム5付近まで内側へ張り出すフランジ状を成す環状の第２遮蔽部材２５と、前記開閉扉8の内面に装着され直径が前記第２遮蔽部材２５の内径より長くかつ第２遮蔽部材２５の近くまで延びる円筒部を有するキャップ状の第３遮蔽部材２６とで構成してある。そして、前記ラビリンス機構22は、前記開閉扉8が前記キャビネット1および前記回転ドラム5の各開口部を閉じた時に、前記第１遮蔽部材24が前記シール部材２３を５〜８０％まで圧縮可能であり、また前記第２遮蔽部材と第３遮蔽部材の円筒部との間の隙間寸法が、前記ショット投射装置21から投射されるショットの最大径の３〜５倍までになっている。 2 and 3, the labyrinth mechanism 22 is mounted on the inner surface of the opening of the cabinet 1 to form a cylindrical shape, and the opening / closing door 8 is provided in each opening of the cabinet 1 and the rotating drum 5. A first shielding member 24 having a length capable of compressing the required size of the seal member 23 when the portion is closed, and a flange shape fixed to the inner surface of the first shielding member 24 and projecting inward to the vicinity of the rotary drum 5. A ring-shaped second shielding member 25, and a cap-shaped third member having a cylindrical portion that is attached to the inner surface of the opening / closing door 8 and has a diameter that is longer than the inner diameter of the second shielding member 25 and extends close to the second shielding member 25. The shielding member 26 is used. The labyrinth mechanism 22 allows the first shielding member 24 to compress the seal member 23 to 5 to 80% when the opening / closing door 8 closes the openings of the cabinet 1 and the rotary drum 5. In addition, the size of the gap between the second shielding member and the cylindrical portion of the third shielding member is 3 to 5 times the maximum diameter of the shot projected from the shot projection device 21.
また、前記開閉扉8が前記キャビネット1および前記回転ドラム5の各開口部を閉じる時、前記キャビネット1の開口部付近の外面に設けられたストッパ２０に当接して、前記ラビリンス機構22の第３遮蔽部材２６は、回転ドラム５の一端部とで若干の隙間を形成し、前記回転ドラム５の回転を可能にしている。 Further, when the opening / closing door 8 closes each opening of the cabinet 1 and the rotating drum 5, it comes into contact with a stopper 20 provided on the outer surface in the vicinity of the opening of the cabinet 1 and the third of the labyrinth mechanism 22. The shielding member 26 forms a slight gap with one end of the rotating drum 5 to enable the rotating drum 5 to rotate.
また、図３に示すように、前記第2遮蔽部材２5の下端には第２遮蔽部材２5と前記第３遮蔽部材２6の円筒部との間を通過したショットが通過可能な小径の孔２７が透設してあって、前記第２遮蔽部材２5と前記第３遮蔽部材２6の円筒部との間を通過したショットは、前記孔２７を通って前記キャビネット1内に流入するようになっている。 As shown in FIG. 3, a small-diameter hole 27 through which a shot passing between the second shielding member 25 and the cylindrical portion of the third shielding member 26 can pass is provided at the lower end of the second shielding member 25. The shot that is transparently passed between the cylindrical portion of the second shielding member 25 and the third shielding member 26 flows into the cabinet 1 through the hole 27. .
このように構成したものは、回転ドラム５に製品を装入し、減速機付モータ１４の正駆動して開閉扉8によりキャビネット1および回転ドラム5の各開口部を閉じた後、回転ドラム５を回転させながらショット投射装置２１からショットを投射すると、回転ドラム５の一端開口部から飛び出したショットは、ラビリンス機構２２およびシール部材２３により外部への飛散を阻止されることとなる。 In this configuration, the product is inserted into the rotary drum 5, the motor 14 with a speed reducer is positively driven, and the opening and closing door 8 closes each opening of the cabinet 1 and the rotary drum 5, and then the rotary drum 5. When the shot is projected from the shot projecting device 21 while rotating the shot, the shot that has jumped out from the one end opening of the rotary drum 5 is prevented from being scattered outside by the labyrinth mechanism 22 and the seal member 23.
５ 回転ドラム
８ 開閉扉
２１ ショット投射装置
２２ ラビリンス機構
5 Rotating drum 8 Open / close door 21 Shot projection device 22 Labyrinth mechanism
Claims (4)
斜め上向きにして傾動可能に配設された箱状のキャビネットと、
このキャビネット内に一端開口部をキャビネットの開口部と対向させて垂直面内で回転可能に設けられ有底円筒状を成すとともに胴部にショットが通過可能な孔を多数有する製品収納用の回転ドラムと、
前記キャビネットおよび前記回転ドラムの各開口部を開閉可能でありかつこれらの開口部の閉鎖時に前記回転ドラム内に向けてショットを投射可能なショット投射装置を装着した開閉扉と、
前記キャビネットの開口部と前記開閉扉とに設けられこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記キャビネットおよび前記回転ドラムの各開口部と前記開閉扉との間の隙間を閉鎖可能なラビリンス機構と、
前記開閉扉の内面に装着されこの開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記開閉扉と前記ラビリンス機構との間の隙間を閉鎖可能でかつ弾性を有する環状のシール部材と、
を具備したことを特徴とする回転ドラム型ショットブラスト装置。 A device for batch blasting products,
A box-shaped cabinet disposed obliquely upward and tiltable;
A rotating drum for storing a product having an opening at one end facing the opening of the cabinet in the cabinet so as to be rotatable in a vertical plane and having a bottomed cylindrical shape and having a number of holes through which the shot can pass in the body. When,
An opening / closing door equipped with a shot projection device capable of opening and closing each opening of the cabinet and the rotating drum and projecting a shot toward the rotating drum when these openings are closed;
Provided in the opening of the cabinet and the opening / closing door, when the opening / closing door closes the opening of the cabinet and the rotating drum, between the opening of the cabinet and the rotating drum and the opening / closing door. A labyrinth mechanism that can close the gap;
An annular seal that is mounted on the inner surface of the door and closes the gap between the door and the labyrinth mechanism when the door closes the opening of the cabinet and the rotating drum, and has elasticity. Members,
A rotary drum type shot blasting apparatus characterized by comprising:
前記ラビリンス機構は、前記キャビネットの開口部の内面に装着され円筒状を成し、かつ前記開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時に前記シール部材を所要寸法圧縮可能な長さを有する第１遮蔽部材と、この第１遮蔽部材の内面に固着され前記回転ドラム付近まで内側へ張り出すフランジ状を成す環状の第２遮蔽部材と、前記開閉扉の内面に装着され外形寸法が前記第２遮蔽部材の内径より長くかつ第２遮蔽部材の近くまで延びる筒部を有するキャップ状の第３遮蔽部材とで構成したことを特徴とする回転ドラム型ショットブラスト装置。 In the rotary drum type shot blasting device according to claim 1,
The labyrinth mechanism is attached to the inner surface of the opening of the cabinet to form a cylinder, and the opening and closing door closes each opening of the cabinet and the rotating drum so that the seal member can be compressed to a required size. A first shielding member having a thickness, a second annular shielding member which is fixed to the inner surface of the first shielding member and has a flange shape projecting inward to the vicinity of the rotary drum, and an outer dimension attached to the inner surface of the door And a cap-shaped third shielding member having a cylindrical portion that is longer than the inner diameter of the second shielding member and extends to the vicinity of the second shielding member.
前記ラビリンス機構は、前記開閉扉が前記キャビネットおよび前記回転ドラムの各開口部を閉じた時、前記第１遮蔽部材が前記シール部材を５〜８０％まで圧縮可能であり、また前記第２遮蔽部材と第３遮蔽部材の筒部との間の隙間寸法を、投射されるショットの最大径の３〜５倍までにしたことを特徴とする回転ドラム型ショットブラスト装置。 In the rotary drum type shot blasting device according to claim 1 or 2,
The labyrinth mechanism is configured such that when the opening and closing door closes each opening of the cabinet and the rotating drum, the first shielding member can compress the sealing member to 5 to 80%, and the second shielding member The rotary drum type shot blasting apparatus, wherein the gap between the first shielding member and the cylindrical portion of the third shielding member is 3 to 5 times the maximum diameter of the shot to be projected.
前記第2遮蔽部材の下端に、第２遮蔽部材と前記第３遮蔽部材の筒部との間を通過したショットが通過可能な小径の孔を透設したことを特徴とする回転ドラム型ショットブラスト装置。
In the rotating drum type shot blasting device according to any one of claims 1 to 3,
A rotating drum type shot blast characterized in that a small-diameter hole through which a shot that has passed between the second shielding member and the cylindrical portion of the third shielding member can pass is provided at the lower end of the second shielding member. apparatus.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005109914A JP4534251B2 (en) | 2005-04-06 | 2005-04-06 | Rotating drum type shot blasting equipment |
| CNB2006800113022A CN100515681C (en) | 2005-04-06 | 2006-04-06 | Shotblasting apparatus |
| US11/887,736 US7766725B2 (en) | 2005-04-06 | 2006-04-06 | Shot-blasting machine |
| BRPI0607636-0A BRPI0607636B1 (en) | 2005-04-06 | 2006-04-06 | WORK PARTS CLEANING FRAGMENT LAUNCH MACHINE |
| EP06731285A EP1870206B1 (en) | 2005-04-06 | 2006-04-06 | Shot-blasting machine |
| PCT/JP2006/307337 WO2006109674A1 (en) | 2005-04-06 | 2006-04-06 | Shotblasting apparatus |
| AT06731285T ATE547205T1 (en) | 2005-04-06 | 2006-04-06 | BLASTING DEVICE |
| PL06731285T PL1870206T3 (en) | 2005-04-06 | 2006-04-06 | Shot-blasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005109914A JP4534251B2 (en) | 2005-04-06 | 2005-04-06 | Rotating drum type shot blasting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006289518A JP2006289518A (en) | 2006-10-26 |
| JP4534251B2 true JP4534251B2 (en) | 2010-09-01 |
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| JP2005109914A Active JP4534251B2 (en) | 2005-04-06 | 2005-04-06 | Rotating drum type shot blasting equipment |
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| CN (1) | CN100515681C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5321978B2 (en) * | 2009-10-07 | 2013-10-23 | 新東工業株式会社 | Continuous conveyor type shot peening apparatus and shot peening method |
| JP5344304B2 (en) * | 2009-10-07 | 2013-11-20 | 新東工業株式会社 | Trough swinging type shot blasting apparatus and trough swinging type shot blasting method |
| JP2011110642A (en) * | 2009-11-26 | 2011-06-09 | Sintokogio Ltd | Rotary drum type grinding/polishing/cleaning facility |
| 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 |
| JP6451661B2 (en) * | 2016-02-19 | 2019-01-16 | 株式会社ダイフク | Conveyor equipment |
| CN105690275A (en) * | 2016-04-19 | 2016-06-22 | 山东开泰抛丸机械股份有限公司 | Crawler type shot blasting device |
| CN111730505B (en) * | 2020-05-26 | 2021-11-19 | 盐城市大丰区海达机械有限公司 | Discharging mechanism of shot blasting machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584356U (en) * | 1981-06-29 | 1983-01-12 | 新東工業株式会社 | Rotating drum type cleaning room door |
| JPH0478434B2 (en) * | 1987-05-22 | 1992-12-11 | Sintokogio Ltd | |
| JPH0531672A (en) * | 1991-07-19 | 1993-02-09 | Sintokogio Ltd | Continuous shot blasting device |
| JPH0569325A (en) * | 1991-09-09 | 1993-03-23 | Nippon Sangyo Kikai Hanbai Kk | Shot blasting device |
| JPH07266232A (en) * | 1994-03-29 | 1995-10-17 | Kaneko Agricult Mach Co Ltd | Soundproofing device for use in drum type shotblast |
| JPH08126959A (en) * | 1994-10-28 | 1996-05-21 | Sintokogio Ltd | Rotating drum type shot blasting device |
-
2005
- 2005-04-06 JP JP2005109914A patent/JP4534251B2/en active Active
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2006
- 2006-04-06 CN CNB2006800113022A patent/CN100515681C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584356U (en) * | 1981-06-29 | 1983-01-12 | 新東工業株式会社 | Rotating drum type cleaning room door |
| JPH0478434B2 (en) * | 1987-05-22 | 1992-12-11 | Sintokogio Ltd | |
| JPH0531672A (en) * | 1991-07-19 | 1993-02-09 | Sintokogio Ltd | Continuous shot blasting device |
| JPH0569325A (en) * | 1991-09-09 | 1993-03-23 | Nippon Sangyo Kikai Hanbai Kk | Shot blasting device |
| JPH07266232A (en) * | 1994-03-29 | 1995-10-17 | Kaneko Agricult Mach Co Ltd | Soundproofing device for use in drum type shotblast |
| JPH08126959A (en) * | 1994-10-28 | 1996-05-21 | Sintokogio Ltd | Rotating drum type shot blasting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006289518A (en) | 2006-10-26 |
| CN101155666A (en) | 2008-04-02 |
| CN100515681C (en) | 2009-07-22 |
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