JPH04122575A - Dust-proof cover opening part shielding plate for high speed grinding wheel cutting machine and exhaust method for high speed grinding wheel cutting machine - Google Patents
Dust-proof cover opening part shielding plate for high speed grinding wheel cutting machine and exhaust method for high speed grinding wheel cutting machineInfo
- Publication number
- JPH04122575A JPH04122575A JP23975790A JP23975790A JPH04122575A JP H04122575 A JPH04122575 A JP H04122575A JP 23975790 A JP23975790 A JP 23975790A JP 23975790 A JP23975790 A JP 23975790A JP H04122575 A JPH04122575 A JP H04122575A
- Authority
- JP
- Japan
- Prior art keywords
- cutting machine
- shielding plate
- speed
- grinding wheel
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000000428 dust Substances 0.000 claims abstract description 13
- 230000003028 elevating effect Effects 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は被切断物を切断したときに発生する粉塵を局所
排気装置により排気する際に使用する高速砥石切断機防
塵カバー開口部遮蔽板、および該遮蔽板を使用した高速
砥石切断機の排気方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a high-speed grindstone cutting machine dustproof cover opening shielding plate used for exhausting dust generated when cutting an object by a local exhaust device; The present invention also relates to an exhaust method for a high-speed grindstone cutting machine using the shielding plate.
［従来の技術］
鋼管等の鋼材を切断するための高速砥石切断機において
は、切断時に発生する粉塵を回収するなめ、第２図に示
すように高速砥石切断機２１を覆うように防塵カバー２
２、−次集塵のためのエアープール２３、二次集塵のた
めのバッグフィルター２４、排風機２５およびこれらを
連結するダクト２６および２７からなる局所排気装置を
設け、空気を清浄にして排気するようにしている。[Prior Art] In a high-speed grindstone cutting machine for cutting steel materials such as steel pipes, a dustproof cover 2 is provided to cover the high-speed grindstone cutting machine 21 as shown in FIG. 2 in order to collect dust generated during cutting.
2. A local exhaust system consisting of an air pool 23 for secondary dust collection, a bag filter 24 for secondary dust collection, an exhaust fan 25, and ducts 26 and 27 connecting these is provided to purify and exhaust the air. I try to do that.
上記した防塵カバー２２の一側面には、第３図（ａ）の
ように高速砥石切断機２１の砥石の回転軸２１ａが昇降
可能なように第一の開口部２８が設けられるとともに、
この−側面から第３図（ｃ）に示す他の側面にがけて、
長尺切断物を切断するための第２の開口部２９および第
３の開口部３０が設けられている。なお、第３図（ｂ）
に示す防塵カバー２２の高速砥石切断機２１正面に対す
る面には開口部はない。A first opening 28 is provided on one side of the dustproof cover 22, as shown in FIG. 3(a), so that the rotating shaft 21a of the grindstone of the high-speed grindstone cutting machine 21 can be moved up and down.
From this side to the other side shown in Figure 3(c),
A second opening 29 and a third opening 30 are provided for cutting long pieces. In addition, Fig. 3(b)
There is no opening on the surface of the dustproof cover 22 shown in FIG.
［発明が解決しようとする課題］
従来の高速砥石切断機に設けた防塵カバーには、上述し
たような大きな開口部があるため集塵に必要な法定制御
風速（開口部における最小風速）を得るためには、風速
ｖ ｃ（ｍ 、／ ５ｅｃ）が風量Ｑ（ｒｒ／園ｉｎ）
と次式のような関係にあるため、風量Ｑを大きくしなけ
ればならず、排風機の容量を大きくしなければならない
という問題点がある。[Problem to be solved by the invention] Since the dustproof cover provided on a conventional high-speed grindstone cutting machine has a large opening as described above, it is difficult to obtain the legally controlled wind speed (minimum wind speed at the opening) required for dust collection. Therefore, the wind speed v c (m, / 5ec) is the air volume Q (rr/in)
Since there is a relationship as shown in the following equation, there is a problem that the air volume Q must be increased and the capacity of the exhaust fan must be increased.
ＶＣ＝Ｑ／’６０Ａ
ただし、Ａ：開口部総面積（ｍ２）
特に、高速砥石切断機の砥石回転軸昇降のための開口部
は、開口部全体の３５％にもなり、この開口部が排風機
の容量を大きくしなければならない要因となっていた。VC=Q/'60A However, A: Total opening area (m2) In particular, the opening for raising and lowering the grinding wheel rotating shaft of a high-speed grinding wheel cutting machine accounts for 35% of the entire opening, and this opening This caused the need to increase the capacity of the wind turbine.
この発明は、従来技術の上記のような問題点を解消し、
排風機の容量を大きくしなくても粉塵の排気ができる高
速研石切断機開口部の遮蔽板、およびこの遮蔽板を使用
した高速砥石切断機の排気方法を提供することを目的と
している。This invention solves the above-mentioned problems of the prior art,
The purpose of the present invention is to provide a shielding plate for an opening of a high-speed grindstone cutting machine, which allows dust to be exhausted without increasing the capacity of an exhaust fan, and an exhaust method for a high-speed grindstone cutting machine using this shielding plate.
［課題を解決するための手段］
この発明に係る高速砥石切断機防塵カバー開口部遮蔽板
は、高速砥石切断機を覆う防塵カバーに設けた高速砥石
切断機の砥石回転軸昇降のための開口部を覆う高速砥石
切断機防塵カバー開口部遮蔽板であって、高速砥石切断
機を覆う防塵カバーに設けた回転支軸（１）と、回転支
軸（１）に回転可能に軸支された遮蔽板本体（２）と、
遮蔽板本体（２）の回転支軸（１）よりも上の部分に設
けた支持部材（３）と、前記防塵カバーに設けた支持部
材（４）および遮蔽板本体（２）が回転支軸（１）を中
心として上向きに回転して、その上縁部が常に高速砥石
切断機の砥石回転軸に接触するよう支持部材（３）と支
持部材（４）との間に付勢して設けたバネ（５）とから
構成される高速砥石切断機防塵カバー開口部遮蔽板であ
る。[Means for Solving the Problems] A high-speed grindstone cutting machine dustproof cover opening shielding plate according to the present invention is an opening for raising and lowering the grindstone rotating shaft of the high-speed grindstone cutting machine, which is provided in a dustproof cover that covers the high-speed grindstone cutting machine. A high-speed grindstone cutting machine dust-proof cover opening shielding plate that covers the high-speed grindstone cutting machine, the shielding plate is rotatably supported on the rotation spindle (1) provided on the dust-proof cover that covers the high-speed grindstone cutter, and the rotation spindle (1). The board body (2),
A support member (3) provided above the rotation support shaft (1) of the shielding plate main body (2), a support member (4) provided on the dustproof cover, and the shielding plate main body (2) are connected to the rotation support shaft. (1) rotates upward and is biased between the support member (3) and the support member (4) so that its upper edge is always in contact with the grindstone rotating shaft of the high-speed grindstone cutting machine. This is a high-speed grindstone cutting machine dustproof cover opening shielding plate composed of a spring (5).
また、この発明に係る高速砥石切断機の排気方法は、被
切断物を切断したときに発生する粉塵を局所排気装置に
より排気する高速砥石切断機の排気方法において、局所
排気装置の高速砥石切断機を覆う防塵カバーに設けた高
速砥石切断機の砥石回転軸昇降のための開口部に、上記
の遮蔽板を設け、砥石回転軸昇降にともない該回転軸の
占める部分を除いて前記遮蔽板により遮蔽しながら排気
する高速砥石切断機の排気方法である。Further, in the exhaust method for a high-speed grindstone cutting machine according to the present invention, in the exhaust method for a high-speed grindstone cutting machine in which dust generated when cutting an object to be cut is exhausted by a local exhaust device, the high-speed grindstone cutting machine uses a local exhaust device. The above-mentioned shielding plate is provided in the opening for raising and lowering the whetstone rotating shaft of the high-speed whetstone cutting machine, which is provided in the dust-proof cover that covers the This is a method of exhausting a high-speed grindstone cutting machine.
［作用コ
この発明に係る高速砥石切断機防塵カバー開口部遮蔽板
は、高速砥石切断機を覆う防塵カバーに設けた高速砥石
切断機の砥石回転軸昇降のための開口部を覆う高速砥石
切断機防塵カバー開口部遮蔽板であって、高速砥石切断
機を覆う防塵カバーに設けた回転支軸（１）と、回転支
軸（１）に回転可能に軸支された遮蔽板本体（２）と、
遮蔽板本体（２）の回転支軸（１）よりも上の部分に設
けた支持部材（３）と、前記防塵カバーに設けた支持部
材（４）および遮蔽板本体（２）が回転支軸（１）を中
心として上向きに回転して、その上縁部が常に高速砥石
切断機の砥石回転軸に接触するよう支持部材（３）と支
持部材（４）との間に付勢して設けたバネ（５）とから
構成される。この発明に係る高速砥石切断機防塵カバー
開口部遮蔽板は、上記のように構成されているので、高
速砥石切断機の砥石回転軸が上昇するにしたがって、砥
石回転軸昇降用開口部を遮蔽する。なお、砥石回転軸が
下降するときには、砥石回転軸のカバーにあらかじめ砥
石回転軸昇降のための開口部を覆うカバーを固着してお
けばよい。[Operation] The high-speed whetstone cutting machine dustproof cover opening shielding plate according to the present invention covers the opening for raising and lowering the whetstone rotating shaft of the high-speed whetstone cutting machine, which is provided in the dustproof cover that covers the high-speed whetstone cutting machine. The dustproof cover opening shielding plate includes a rotary shaft (1) provided on the dustproof cover that covers a high-speed grindstone cutting machine, and a shielding plate main body (2) rotatably supported on the rotary shaft (1). ,
A support member (3) provided above the rotation support shaft (1) of the shielding plate main body (2), a support member (4) provided on the dustproof cover, and the shielding plate main body (2) are connected to the rotation support shaft. (1) rotates upward and is biased between the support member (3) and the support member (4) so that its upper edge is always in contact with the grindstone rotating shaft of the high-speed grindstone cutting machine. and a spring (5). Since the high-speed grindstone cutting machine dustproof cover opening shielding plate according to the present invention is configured as described above, as the grindstone rotation axis of the high-speed grindstone cutting machine rises, the opening for raising and lowering the grindstone rotation shaft is shielded. . Note that when the grindstone rotation shaft is lowered, a cover that covers the opening for raising and lowering the grindstone rotation shaft may be fixed in advance to the cover of the grindstone rotation shaft.
また、この発明に係る高速砥石切断機の排気方法は、被
切断物を切断したときに発生する粉塵を局所排気装置に
より排気する高速砥石切断機の排気方法において、局所
排気装置の高速砥石切断機を覆うカバーに設けた高速砥
石切断機の砥石回転軸昇降のための開口部に前記遮蔽板
を設け、砥石回転軸昇降にともない該回転軸の占める部
分を除いて遮蔽板により開口部を遮蔽しながら排気する
ようにしている。このようにして排気しているので、高
速砥石切断機を覆うカバーに設けた開口部の切断時の面
積が小さくなり、排風量が少なくても法定の制御風速を
えることができ、容量の小さい排風機で排気することが
できる。Further, in the exhaust method for a high-speed grindstone cutting machine according to the present invention, in the exhaust method for a high-speed grindstone cutting machine in which dust generated when cutting an object to be cut is exhausted by a local exhaust device, the high-speed grindstone cutting machine uses a local exhaust device. The shielding plate is provided in an opening for raising and lowering the whetstone rotating shaft of a high-speed whetstone cutting machine, which is provided in a cover that covers the machine, and as the whetstone rotating shaft moves up and down, the opening is covered by the shielding plate except for the part occupied by the rotating shaft. I try to exhaust the air while doing so. By exhausting the air in this way, the area of the opening provided in the cover that covers the high-speed grindstone cutting machine during cutting is reduced, and even if the exhaust air volume is small, the legal control air speed can be achieved, and the capacity is small. It can be exhausted using an exhaust fan.
［実施例］
この発明の１実施例の高速砥石切断機防塵カバー開口部
遮蔽板を、第１図により説明する。この発明の１実施例
の高速砥石切断機防塵カバー開口部遮蔽板は、高速砥石
切断機を覆う防塵カバー２２に設けた回転支軸１と、回
転支軸１に回転可能に軸支された遮蔽板本体２と、遮蔽
板本体２の回転支軸１よりも上の部分に設けた支持部材
３と、前記防塵カバー２２に設けた支持部材４および遮
蔽板本体２が回転支軸１を中心として上向きに回転して
、その上縁部２ａが常に高速砥石切断機の砥石回転軸２
１ａに接触するよう支持部材３と支持部材４との間に付
勢して設けたバネ５とから構成されている。[Embodiment] A high-speed grindstone cutting machine dustproof cover opening shielding plate according to an embodiment of the present invention will be described with reference to FIG. A high-speed grindstone cutting machine dustproof cover opening shielding plate according to an embodiment of the present invention includes a rotary shaft 1 provided on a dustproof cover 22 covering the high-speed grindstone cutting machine, and a shield rotatably supported on the rotary shaft 1. The plate main body 2, the support member 3 provided above the rotation support shaft 1 of the shield plate main body 2, the support member 4 provided on the dustproof cover 22, and the shield plate main body 2 are rotated around the rotation support shaft 1. It rotates upward, and its upper edge 2a is always aligned with the grindstone rotating shaft 2 of the high-speed grindstone cutting machine.
It is composed of a spring 5 biased between the support member 3 and the support member 4 so as to contact the support member 1a.
次に、上記高速砥石切断機防塵カバー開口部遮蔽板を使
用した、本発明の１実施例の高速砥石切断機の排気方法
を、第１図により説明する。第１図に示すように、本発
明の１実施例の高速砥石切断機の排気方法においては、
高速砥石切断機の砥石回転軸２１ａの昇降用開口部２８
に上述したような遮蔽板を設け、切断により発生した粉
塵を排気するようにしているので、高速砥石切断機の砥
石回転軸２１ａが上昇しても、昇降用開口部２８が遮蔽
板本体２により遮蔽されるので、開口部が大きくならず
、排風量を増やして法定制御風速を確保する必要はない
、したがって、容量の小さい排風機で操業できるか、逆
に容量の大きい排風機で排風量を落として操業でき、排
気にともなう費用を低減することができる。なお、高速
砥石切断機の砥石回転軸２１ａが下降するときには、高
速砥石切断機の砥石回転軸２１ａのカバー１１に固着し
た開口遮蔽カバー１２により、開口部２８を遮蔽するよ
うにしているので、上昇時、下降時にかかわらず、開口
部２８は遮蔽されている。Next, an exhaust method for a high-speed grindstone cutting machine according to an embodiment of the present invention using the above-mentioned high-speed grindstone cutting machine dustproof cover opening shielding plate will be explained with reference to FIG. As shown in FIG. 1, in the exhaust method for a high-speed grindstone cutting machine according to one embodiment of the present invention,
Opening 28 for lifting and lowering the grindstone rotating shaft 21a of a high-speed grindstone cutting machine
Since the above-mentioned shielding plate is provided to exhaust the dust generated during cutting, even if the grinding wheel rotating shaft 21a of the high-speed grinding wheel cutting machine rises, the opening 28 for lifting and lowering is prevented by the shielding plate main body 2. Since it is shielded, the opening is not large and there is no need to increase the exhaust air volume to ensure the legally controlled wind speed.Therefore, it is possible to operate with a small capacity exhaust fan, or conversely to increase the exhaust volume with a large capacity exhaust fan. It can be operated by dropping it down, reducing costs associated with exhaust emissions. Note that when the grindstone rotating shaft 21a of the high-speed grindstone cutting machine descends, the opening 28 is shielded by the opening shielding cover 12 fixed to the cover 11 of the grindstone rotating shaft 21a of the high-speed grindstone cutting machine. The opening 28 is shielded regardless of whether the vehicle is moving or descending.
［発明の効果］
本発明により、高速砥石切断機において発生する粉塵の
排気処理が安価にできる。[Effects of the Invention] According to the present invention, dust generated in a high-speed grindstone cutting machine can be exhausted at low cost.
第１図は本発明の１実施例の高速砥石切断機の排気方法
に使用する遮蔽板の構造を示す説明図、第２図は高速砥
石切断機に設けた局所排気装置の説明図、第３図は高速
砥石切断機に設けた防塵力回転支軸、
つ
遮蔽板本体、
遮蔽板本
体に殿けた支持部材、
防塵カバーに設けた支
持部材、
バネ。FIG. 1 is an explanatory diagram showing the structure of a shielding plate used in the exhaust method for a high-speed grindstone cutting machine according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a local exhaust system provided in the high-speed grindstone cutting machine, and FIG. The figure shows the dust-proof rotary shaft installed on a high-speed grindstone cutting machine, the shield plate body, the support member attached to the shield plate body, the support member installed on the dust-proof cover, and the spring.
Claims (2)
石切断機の砥石回転軸昇降のための開口部を覆う高速砥
石切断機防塵カバー開口部遮蔽板であつて、高速砥石切
断機を覆う防塵カバーに設けた回転支軸（１）と、回転
支軸（１）に回転可能に軸支された遮蔽板本体（２）と
、遮蔽板本体（２）の回転支軸（１）よりも上の部分に
設けた支持部材（３）と、前記防塵カバーに設けた支持
部材（４）および遮蔽板本体（２）が回転支軸（１）を
中心として上向きに回転して、その上縁部が常に高速砥
石切断機の砥石回転軸に接触するよう支持部材（３）と
支持部材（４）との間に付勢して設けたバネ（５）とか
ら構成されることを特徴とする高速砥石切断機防塵カバ
ー開口部遮蔽板。(1) A high-speed whetstone cutting machine dustproof cover opening shielding plate that covers the opening for raising and lowering the whetstone rotating shaft of the high-speed whetstone cutting machine, which is provided in the dustproof cover that covers the high-speed whetstone cutting machine, and covers the high-speed whetstone cutting machine. The rotation support shaft (1) provided on the dustproof cover, the shielding plate main body (2) rotatably supported on the rotation support shaft (1), and the rotation support shaft (1) of the shielding plate main body (2). The support member (3) provided on the upper part, the support member (4) provided on the dustproof cover, and the shielding plate main body (2) rotate upward around the rotation support shaft (1), and the upper edge thereof The support member (3) and the spring (5) are biased between the support member (4) so that the part always contacts the grindstone rotating shaft of the high-speed grindstone cutting machine. High-speed grindstone cutting machine dustproof cover opening shielding plate.
気装置により排気する高速砥石切断機の排気方法におい
て、局所排気装置の高速砥石切断機を覆う防塵カバーに
設けた高速砥石切断機の砥石回転軸昇降のための開口部
に、請求項１の遮蔽板を設け、砥石回転軸昇降にともな
い該回転軸の占める部分を除いて前記遮蔽板により遮蔽
しながら排気することを特徴とする高速砥石切断機の排
気方法。(2) In an exhaust method for a high-speed grindstone cutter that uses a local exhaust system to exhaust the dust generated when cutting the object to be cut, the high-speed grindstone cutter is equipped with a dustproof cover that covers the high-speed grindstone cutter of the local exhaust system. A high-speed vehicle characterized in that a shielding plate according to claim 1 is provided in an opening for raising and lowering the whetstone rotating shaft, and as the whetstone rotating shaft goes up and down, exhaust is carried out while excluding a portion occupied by the rotary shaft while being shielded by the shielding plate. Exhaust method for grindstone cutting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23975790A JPH04122575A (en) | 1990-09-10 | 1990-09-10 | Dust-proof cover opening part shielding plate for high speed grinding wheel cutting machine and exhaust method for high speed grinding wheel cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23975790A JPH04122575A (en) | 1990-09-10 | 1990-09-10 | Dust-proof cover opening part shielding plate for high speed grinding wheel cutting machine and exhaust method for high speed grinding wheel cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04122575A true JPH04122575A (en) | 1992-04-23 |
Family
ID=17049472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23975790A Pending JPH04122575A (en) | 1990-09-10 | 1990-09-10 | Dust-proof cover opening part shielding plate for high speed grinding wheel cutting machine and exhaust method for high speed grinding wheel cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04122575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002226A (en) * | 2013-12-16 | 2014-08-27 | 桐乡波力科技复材用品有限公司 | Automatic grinding machine for hockey sticks |
-
1990
- 1990-09-10 JP JP23975790A patent/JPH04122575A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002226A (en) * | 2013-12-16 | 2014-08-27 | 桐乡波力科技复材用品有限公司 | Automatic grinding machine for hockey sticks |
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