JPS6222749B2 - - Google Patents
Info
- Publication number
- JPS6222749B2 JPS6222749B2 JP53095551A JP9555178A JPS6222749B2 JP S6222749 B2 JPS6222749 B2 JP S6222749B2 JP 53095551 A JP53095551 A JP 53095551A JP 9555178 A JP9555178 A JP 9555178A JP S6222749 B2 JPS6222749 B2 JP S6222749B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- resin film
- grinding wheel
- rotary
- release sheet
- 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.)
- Expired
Links
- 239000011347 resin Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 239000012778 molding material Substances 0.000 claims 2
- 239000000758 substrate Substances 0.000 description 6
- 239000006061 abrasive grain Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】
本発明は表面に樹脂フイルムを貼着せしめてな
る研削又は切断用回転砥石盤の製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a rotary grindstone for grinding or cutting, which has a resin film adhered to its surface.
研削又は切断用として使用されている砥石盤
（以下これを単に回転砥石盤と称す）において
は、その回転砥石盤の強度、あるいは耐久性を向
上せしめるために回転砥石盤の中心部、あるい
は、その表裏部に補強用メツシユを埋設せしめた
ものが公知であるが、かかるメツシユ入り回転砥
石盤、特に表裏部にメツシユを入れた回転砥石盤
においてはその使用時にメツシユが剥離しやすく
補強体として役目が弱められると共に、そのメツ
シユの剥離に伴なつて砥粒が脱落しやすくその回
転砥石盤の寿命を縮めることは勿論のこと、その
砥粒が飛散して作業者に危険を及ぼす等の不都合
があつた。 In a grinding wheel used for grinding or cutting (hereinafter simply referred to as a rotating grinding wheel), in order to improve the strength or durability of the rotating grinding wheel, the central part of the rotating grinding wheel or its A rotary grindstone with reinforcing mesh embedded in the front and back is known, but in such a rotary grindstone with mesh, especially in a rotary grindstone with mesh in the front and back, the mesh easily peels off during use, and does not serve as a reinforcing body. In addition to weakening, the abrasive grains tend to fall off as the mesh peels off, shortening the life of the rotating grinding wheel, and there are other inconveniences such as the abrasive grains scattering and posing a danger to workers. Ta.
本発明はかかる不都合を解消すると共に回転砥
石盤の表面をカラー化（着色）せしめる商品価値
を高め、更には金型を汚損することなく上記回転
砥石盤を生産することができるようにした回転砥
石盤の製造方法を提供するものである。 The present invention is a rotary whetstone that eliminates such inconveniences, increases the commercial value of the rotary whetstone by coloring the surface thereof, and further enables the production of the rotary whetstone without staining the mold. The present invention provides a method for manufacturing a board.
即ち本発明を具体的に述べれば、回転砥石盤の
加圧成形時に、その回転砥石盤の表裏両面にビニ
ール、ポリエチレンの如き樹脂フイルムを添着し
て前記欠点、不都合を解消すると共に、その樹脂
フイルムに着色したもの、あるいは文字、模様等
を施したものを使用することで、商品価値の高い
回転砥石盤を生産することができるものである。 Specifically, the present invention is to solve the above-mentioned drawbacks and inconveniences by attaching a resin film such as vinyl or polyethylene to both the front and back surfaces of the rotary whetstone when the rotary whetstone is press-formed. By using colored or decorated with letters, patterns, etc., it is possible to produce rotary grindstones with high commercial value.
以下に本発明の製法に使用する装置を図面に示
す実施例に基いて詳細に説明する。 The apparatus used in the manufacturing method of the present invention will be explained in detail below based on embodiments shown in the drawings.
Ａは平面円形状の雌型であり、Ｂはその雌型Ａ
に対設される雄型である。今、この雌型Ａの構造
について述べると、１は平面円形状の基板であつ
て、この基板１の周囲には断面Ｌ状の切欠溝２が
形成されてをり、更にこの基板１の中心部には穴
３が穿設されている。４は前記Ｌ状切欠溝２内に
嵌合されるように形成されている環状の枠体で、
この枠体４の適所には垂直方向の軸５が固定され
ており、更にこの軸５の下端部は前記切欠溝２の
水平部に穿設した透孔６内に遊挿されている。７
はＬ状切欠溝２と環状の枠体４との間に介装さ
れ、かつ軸５によつて支持されているスプリング
で、このスプリングの弾力作用で枠体４が押し上
げられ枠体４の上面と、基板１の上面との間に凹
部８を形成している。９は前記穴３内に遊嵌され
ている駒で、この駒９と穴３底部との間にはスプ
リング１０が介装され、該スプリング１０の弾力
により駒９の上面が環状の枠体４の上面と略一致
するように保持されている。１１は基板１と枠体
４とによつて形成されている凹部８の底部に敷設
せしめた離型シートであるが、この離型シートは
例えばグラスフアイバーによつて織成又は編成せ
しめてなるグラスフアイバーネツトにフツソ樹脂
を含浸被覆せしめたものが有利であつて、この離
型シート１１は下述する樹脂フイルムと加熱され
た金型との剥離を容易ならしめるために設けたも
のである。以上が雌型Ａの構造であるが、この雌
型Ａと対設する雄型Ｂの押圧面にも前記離型シー
ト１１と同様に形成された離型シート１１′が添
設されているものである。 A is a female type with a planar circular shape, and B is the female type A.
It is a male type installed opposite to. Now, to describe the structure of this female mold A, numeral 1 is a planar circular substrate, a cutout groove 2 having an L-shaped cross section is formed around the substrate 1, and a notch groove 2 having an L-shaped cross section is formed at the center of the substrate 1. A hole 3 is bored in the part. 4 is an annular frame body formed to be fitted into the L-shaped notch groove 2;
A vertical shaft 5 is fixed at a proper position on the frame 4, and the lower end of the shaft 5 is loosely inserted into a through hole 6 formed in the horizontal portion of the notched groove 2. 7
is a spring that is interposed between the L-shaped notch groove 2 and the annular frame 4 and supported by the shaft 5, and the elastic action of this spring pushes up the frame 4 and pushes the upper surface of the frame 4. A recess 8 is formed between the upper surface of the substrate 1 and the upper surface of the substrate 1. Reference numeral 9 designates a piece that is loosely fitted into the hole 3. A spring 10 is interposed between the piece 9 and the bottom of the hole 3, and the elasticity of the spring 10 causes the upper surface of the piece 9 to move into the annular frame 4. It is held so that it approximately coincides with the top surface of. Reference numeral 11 denotes a release sheet laid on the bottom of the recess 8 formed by the substrate 1 and the frame 4, and this release sheet is made of, for example, glass woven or knitted from glass fibers. It is advantageous to have a fibernet impregnated and coated with a fused resin, and the release sheet 11 is provided to facilitate the separation of the resin film and the heated mold described below. The above is the structure of the female mold A, and a mold release sheet 11' formed in the same manner as the mold release sheet 11 is attached to the pressing surface of the male mold B opposite to the female mold A. It is.
以上が雌型と雄型との構造であるが次にその双
方の型を使用しての回転砥石盤の製造方法ついて
述べる。 The structures of the female mold and the male mold have been described above, and next, a method for manufacturing a rotary grindstone using both molds will be described.
先ず上記雌型Ａの凹部８内、即ち離型シート１
１の上面にポリエチレン又はビニール等よりなる
樹脂フイルム１２を敷設し、次いでその樹脂フイ
ルム１２の上に砥石盤の補強体となるでき補強用
ネツト１３を敷設する。更にこの補強用ネツト１
３の上には砥石盤の成形原料１４即ち砥粒、硬化
剤等を配合せしめてなる公知の成形原料を充填
し、次いでその成形原料の上には前記補強用ネツ
ト１３と同様の補強用ネツト１３′を敷設し、更
にそのネツト１３′上には前記樹脂フイルム１２
と同様の樹脂フイルム１２′を敷設する。そこで
雄型Ｂを降下せしめ、前記雌型内に入れた各材料
を加熱加圧することによつて前記原料は偏平化さ
れると共に、その偏平化原料の表裏には補強用ネ
ツト１３，１３′及び樹脂フイルム１２，１２′が
熱溶着されるものである。 First, inside the recess 8 of the female mold A, that is, the release sheet 1
A resin film 12 made of polyethylene, vinyl, or the like is laid on the upper surface of the grinding wheel 1, and then a reinforcing net 13, which serves as a reinforcing body for the grinding wheel, is laid on the resin film 12. Furthermore, this reinforcing net 1
3 is filled with a forming material 14 for a grindstone, that is, a known forming material mixed with abrasive grains, a hardening agent, etc., and then a reinforcing net similar to the reinforcing net 13 is placed on top of the forming material. 13', and the resin film 12 is placed on the net 13'.
A resin film 12' similar to the above is laid down. Then, the male die B is lowered and the materials placed in the female die are heated and pressurized to flatten the raw materials, and reinforcing nets 13, 13' and The resin films 12, 12' are thermally welded.
尚離型シート１１，１１′の作用によつて樹脂
フイルム１２，１２′が金型の押圧面に付着され
ることはない。即ち補強用ネツトを有する回転砥
石盤の表裏に樹脂フイルムが貼着された回転砥石
盤が得られることで、該回転砥石盤の使用時にお
いて補強用ネツト１３，１３′の剥離あるいは砥
粒の脱落が防止されると共に、その樹脂フイルム
に適宜の着色を施すか、あるいは文字、模様を施
すことによつて美観と、商品価値の高められた回
転砥石盤を提供することができる。 Furthermore, due to the action of the release sheets 11, 11', the resin films 12, 12' are not adhered to the pressing surface of the mold. That is, by obtaining a rotary grinding wheel having a reinforcing net with a resin film affixed to the front and back sides of the rotary grinding wheel, peeling of the reinforcing nets 13, 13' or falling off of the abrasive grains can be prevented when the rotary grinding wheel is used. It is possible to provide a rotary grindstone with an improved aesthetic appearance and commercial value by appropriately coloring the resin film, or by adding letters or patterns to the resin film.
更に回転砥石盤の成型時において金型の押圧面
には砥粒等の原料が直に付着されないので原料の
充填による金型の汚損、あるいは損傷が効果的に
防止される等その実益は大なるものがある。 Furthermore, since raw materials such as abrasive grains are not directly attached to the pressing surface of the mold during molding with a rotary grindstone, the mold is effectively prevented from being contaminated or damaged due to filling with raw materials, which has great benefits. There is something.
図面は本発明よりなる回転砥石盤を製造するた
めの装置を示した断面図である。
Ａ……雌型、Ｂ……雄型、１……基板、２……
切欠溝、３……穴、４……枠体、５……軸、６…
…透孔、７……スプリング、８……凹部、９……
駒、１０……スプリング、１１，１１′……離型
シート、１２，１２′……樹脂フイルム、１３，
１３′……補強用ネツト、１４……成形原料。
The drawing is a sectional view showing an apparatus for manufacturing a rotary grindstone according to the present invention. A... Female type, B... Male type, 1... Board, 2...
Notch groove, 3... hole, 4... frame, 5... shaft, 6...
...Through hole, 7...Spring, 8...Recess, 9...
Piece, 10... Spring, 11, 11'... Release sheet, 12, 12'... Resin film, 13,
13'... Reinforcing net, 14... Molding raw material.
Claims (1)
樹脂フイルムの溶着を防ぐための離型シートを敷
設し、その上に樹脂フイルムを載置し、更に補強
用ネツトを順次敷設し、その上に成形原料を充填
し、更にその上に前記とは逆に補強用ネツト、樹
脂フイルム及びその離型シートを順次重合載置
し、しかる後金型をプレスした後、前記金型を砥
石盤成形物より外し、更に該砥石盤成形物の圧面
より離型シートを剥離し、回転砥石盤の表裏面に
樹脂フイルムを貼着せしめ得るようにしたことを
特徴とする回転砥石盤の製造方法。1. When pressure forming a rotary grindstone, first lay a release sheet on the mold to prevent the resin film from adhering, place the resin film on top of it, and then sequentially lay reinforcing nets. A molding raw material is filled on top of the molding material, and a reinforcing net, a resin film, and a mold release sheet are sequentially polymerized and placed on top of the molding material in reverse order, and after pressing the mold, the mold is placed on a grindstone. A method for manufacturing a rotary grinding wheel, characterized in that the grinding wheel is removed from the molded product, a release sheet is peeled off from the pressure surface of the molded product, and a resin film is attached to the front and back surfaces of the rotary grinding wheel. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9555178A JPS5524835A (en) | 1978-08-05 | 1978-08-05 | Method of producing rotary grinding disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9555178A JPS5524835A (en) | 1978-08-05 | 1978-08-05 | Method of producing rotary grinding disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5524835A JPS5524835A (en) | 1980-02-22 |
| JPS6222749B2 true JPS6222749B2 (en) | 1987-05-19 |
Family
ID=14140705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9555178A Granted JPS5524835A (en) | 1978-08-05 | 1978-08-05 | Method of producing rotary grinding disc |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5524835A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516098B2 (en) * | 1987-10-30 | 1993-03-03 | Sankyo Seiki Seisakusho Kk |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6210058Y2 (en) * | 1978-08-25 | 1987-03-09 | ||
| JPS5813789U (en) * | 1981-07-16 | 1983-01-28 | ソニー株式会社 | Video signal processing device |
| JPS58186571A (en) * | 1982-04-23 | 1983-10-31 | Mitsubishi Gas Chem Co Inc | Method of manufacturing auxiliary material for polishing |
| JPS6199463U (en) * | 1984-12-03 | 1986-06-25 | ||
| JP2001315063A (en) * | 2000-05-10 | 2001-11-13 | Nitto Boseki Co Ltd | Rotary grinding wheel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110490A (en) * | 1974-07-15 | 1976-01-27 | Mitsuaki Soga | ITASO CHINUKIGATA |
| JPS5122185A (en) * | 1974-08-19 | 1976-02-21 | Nihon Valqua Kogyo Kk | Setsudantoishino seizohoho |
| JPS5127027A (en) * | 1974-08-30 | 1976-03-06 | Tokyo Shibaura Electric Co |
-
1978
- 1978-08-05 JP JP9555178A patent/JPS5524835A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5110490A (en) * | 1974-07-15 | 1976-01-27 | Mitsuaki Soga | ITASO CHINUKIGATA |
| JPS5122185A (en) * | 1974-08-19 | 1976-02-21 | Nihon Valqua Kogyo Kk | Setsudantoishino seizohoho |
| JPS5127027A (en) * | 1974-08-30 | 1976-03-06 | Tokyo Shibaura Electric Co |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0516098B2 (en) * | 1987-10-30 | 1993-03-03 | Sankyo Seiki Seisakusho Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5524835A (en) | 1980-02-22 |
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