JPS6342099Y2 - - Google Patents
Info
- Publication number
- JPS6342099Y2 JPS6342099Y2 JP1984036343U JP3634384U JPS6342099Y2 JP S6342099 Y2 JPS6342099 Y2 JP S6342099Y2 JP 1984036343 U JP1984036343 U JP 1984036343U JP 3634384 U JP3634384 U JP 3634384U JP S6342099 Y2 JPS6342099 Y2 JP S6342099Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutter blade
- cutting
- glass tube
- cutting edge
- end surface
- 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
- 238000005520 cutting process Methods 0.000 claims description 32
- 239000011521 glass Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は新規な電球用ガラス管の切断用カツタ
ー刃に関する。詳しくは、電球のガラス球となる
部分をガラス管を切断して形成する際のガラス管
切断用のカツター刃の改良に関するもので、切断
時におけるカツター刃の圧力がガラス管の切断端
面に加わることがないようにして、これによつ
て、ガラス管の切断端面に“ビリ”と称される微
細な傷が生じるのを防止した新規な電球用ガラス
管の切断用カツター刃を提供しようとするもので
ある。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a novel cutter blade for cutting glass tubes for light bulbs. In detail, this article relates to an improvement in the cutter blade used to cut the glass tube to form the part that will become the glass bulb of the light bulb. To provide a novel cutter blade for cutting glass tubes for light bulbs, which prevents minute scratches called "burrs" from occurring on the cut end surface of the glass tube. It is.
背景技術とその問題点
電球を製造する場合、ガラス球の材料となるガ
ラス管を所定の長さに切断する工程がある。そし
て、その工程には、第１図に示すサーマルシヨツ
ク法と称される方法がある。BACKGROUND ART AND PROBLEMS When manufacturing a light bulb, there is a step of cutting a glass tube, which is the material of a glass bulb, into a predetermined length. There is a method called the thermal shock method shown in FIG. 1 in this process.
これは、材料となるガラス管ａを用意し（第１
図Ａ）、このガラス管ａの切断予定箇所をバーナ
ーｂによつて加熱して（第１図Ｂ）、当該部分に
歪を持たせ、当該部分に冷却されたカツター刃ｃ
の刃先ｄを押し当てる（第１図Ｃ）ことにより、
サーマルシヨツクを起し、当該部分で切断するも
のである。 This is done by preparing a glass tube a as a material (the first
Figure A), heat the part of the glass tube a to be cut with a burner b (Figure 1B) to give distortion to the part, and then cool the cutter blade c to the part.
By pressing the cutting edge d of (Fig. 1C),
It creates a thermal shock and cuts at the relevant part.
ところが、このような方式によると、ガラス管
ａの切断端面ｅに“ビリ”と称する微細な傷ｆ，
ｆ，……が生じるという問題がある。これは、カ
ツター刃ｃの刃先ｄの両面d1，d2が共にカツター
刃の移動方向（図面に矢印Ａで示す方向）に対し
て等しい角度で傾斜されている（面d1とd2とが成
す角度が約120度角）ので、カツター刃ｃが矢印
Ａで示す方向に移動されるに従つて、ガラス管ａ
の切断端面ｅにこれを押し上げる方向への圧力が
加わり（第２図にｇで示す量だけ切断端面ｅが押
し上げられる。）、この圧力によつて、いわゆる
“ビリ”ｆ，ｆ，……が生じる。そして、このよ
うな“ビリ”と称される微細な傷が生じると、こ
の後各種の熱加工が施される関係から、この切断
端面ｅ及びこれに近接した箇所の強度が著しく損
なわれ、電球の品質が著しく低下するという問題
がある。 However, according to such a method, minute scratches f, called "burrs", are formed on the cut end surface e of the glass tube a.
There is a problem that f, . . . arises. This is because both surfaces d 1 and d 2 of the cutting edge d of the cutter blade c are inclined at the same angle with respect to the moving direction of the cutter blade (the direction indicated by arrow A in the drawing) (the surfaces d 1 and d 2 is approximately 120 degrees), so as cutter blade c is moved in the direction shown by arrow A,
Pressure is applied to the cut end surface e in the direction of pushing it up (the cut end surface e is pushed up by the amount indicated by g in Fig. 2), and this pressure causes so-called "burrs" f, f,... arise. If such minute scratches, called "bills," occur, the strength of the cut end surface e and the parts close to it will be significantly impaired due to the various heat treatments that will be applied to the light bulb. There is a problem in that the quality of the product deteriorates significantly.
考案の目的
そこで、本考案は、電球のガラス球となる部分
をガラス管を切断して形成する際に、カツター刃
の圧力がガラス管の切断端面に加わることがない
ようにして、これによつて、ガラス管の切断端面
に“ビリ”と称される微細な傷が生じるのを防止
した新規な電球用ガラス管の切断用カツター刃を
提供することを目的とする。Purpose of the invention Therefore, the present invention aims to prevent the pressure of the cutter blade from being applied to the cut end surface of the glass tube when cutting the glass tube to form the part that will become the glass bulb of the light bulb. It is therefore an object of the present invention to provide a novel cutter blade for cutting glass tubes for light bulbs, which prevents minute scratches called "burrs" from occurring on the cut end surface of the glass tube.
考案の概要
本考案電球用ガラス管の切断用カツター刃は、
上記した目的を達成するために、円盤体の周面部
に刃先が形成され、該刃先は上下面の一方の面が
円盤体の軸線に対して略垂直な平面とされ他方の
面が傾斜面とされることによつて形成されたこと
を特徴とする。Summary of the invention The cutter blade for cutting glass tubes for light bulbs is
In order to achieve the above-mentioned purpose, a cutting edge is formed on the peripheral surface of the disk, one of the upper and lower surfaces of the cutting edge is a plane substantially perpendicular to the axis of the disk, and the other surface is an inclined surface. It is characterized by being formed by
実施例
以下に、本考案電球用ガラス管の切断用カツタ
ー刃の詳細を図示した実施例に従つて説明する。Embodiments The details of the cutter blade for cutting glass tubes for light bulbs according to the present invention will be described below with reference to illustrated embodiments.
１が本考案を実施した電球用ガラス管の切断用
カツター刃である。 1 is a cutter blade for cutting glass tubes for light bulbs in which the present invention is implemented.
カツター刃１は全体として略円盤状を為してお
り、該円盤体２の周面部が刃先３とされている。
円盤体２の中心にはこれを厚み方向に貫通した貫
通孔４が形成されており、該貫通孔４にて図示し
ないスピンドルに取着される。 The cutter blade 1 has a substantially disk shape as a whole, and the peripheral surface of the disk body 2 is a cutting edge 3.
A through hole 4 is formed in the center of the disc body 2, passing through it in the thickness direction, and the disc body 2 is attached to a spindle (not shown) through the through hole 4.
刃先３の肉厚は他の部分に比して薄肉とされて
おり、前記貫通孔４の軸線に対して垂直な平面５
とこの平面の下側にある傾斜面６とによつて構成
されている。従つて、このカツター刃１の刃先３
の上面はカツター刃１の送り方向と平行な平面と
されている。尚、平面５と傾斜面６との為す角度
は、この実施例では、約60度角とされている。 The wall thickness of the cutting edge 3 is thinner than other parts, and the wall thickness of the cutting edge 3 is thinner than that of other parts, and the wall thickness of the cutting edge 3 is made thinner than other parts.
and an inclined surface 6 below this plane. Therefore, the cutting edge 3 of this cutter blade 1
The upper surface of the cutter blade 1 is a plane parallel to the feeding direction of the cutter blade 1. In this embodiment, the angle formed by the plane 5 and the inclined surface 6 is about 60 degrees.
上記の如きカツター刃１によつて、上記したサ
ーマルシヨツクを利用したガラス管の切断を行な
うと、第５図に示すように、カツター刃１を矢印
Ｂで示す方向へ移動させてガラス管７に圧力を加
えても、ガラス管７の切断端面８に接触するの
は、カツター刃１の刃先３のうち平面５の方であ
るので、ガラス管７の切断端面８を上方へ押し上
げようとする圧力が加わることがなく、従つて、
ガラス管７の切断端面８にいわゆる“ビリ”と称
される微細な傷が生ずるのを防止することができ
る。 When cutting a glass tube using the thermal shock described above with the cutter blade 1 as described above, as shown in FIG. Even if pressure is applied, it is the flat surface 5 of the cutting edge 3 of the cutter blade 1 that comes into contact with the cut end surface 8 of the glass tube 7, so the pressure tends to push the cut end surface 8 of the glass tube 7 upward. is not added, therefore,
It is possible to prevent minute scratches, so-called "burrs", from occurring on the cut end surface 8 of the glass tube 7.
考案の効果
以上に記載したところから明らかなとおり、本
考案電球用ガラス管の切断用カツター刃は、円盤
体の周面部に刃先が形成され、該刃先は上下面の
一方の面が円盤体の軸線に対して略垂直な平面と
され他方の面が傾斜面とされることによつて形成
されたことを特徴とする。Effects of the invention As is clear from the above description, the cutter blade for cutting glass tubes for light bulbs of the present invention has a cutting edge formed on the peripheral surface of the disc body, and one of the upper and lower surfaces of the cutting edge is formed on the peripheral surface of the disc body. It is characterized by being formed by having one plane substantially perpendicular to the axis and the other plane being an inclined plane.
従つて、ガラス管の切断端面にはカツター刃の
刃先のうち平面とされた方の面が当接することに
なり、これによつて、切断時におけるカツター刃
の圧力がガラス管の切断端面に加わることがない
ようにして、ガラス管の切断端面に“ビリ”と称
される微細な傷が生ずるのを防止することができ
る。 Therefore, the flat surface of the cutting edge of the cutter blade comes into contact with the cut end surface of the glass tube, and as a result, the pressure of the cutter blade during cutting is applied to the cut end surface of the glass tube. By doing so, it is possible to prevent minute scratches called "burrs" from occurring on the cut end surface of the glass tube.
第１図はサーマルシヨツクを利用したガラス管
の切断方法をＡからＣへと順を追つて示す側面
図、第２図は切断時の詳細を示す拡大側面図、第
３図乃至第５図は本考案電球用ガラス管の切断用
カツター刃の実施の一例を示すもので、第３図は
側面図、第４図は斜視図、第５図は切断時の詳細
を示す側面図である。
符号の説明、１……電球用ガラス管の切断用カ
ツター刃、２……円盤体、３……刃先、５……平
面、６……傾斜面。
Figure 1 is a side view showing the method of cutting a glass tube using a thermal shock in order from A to C, Figure 2 is an enlarged side view showing the details of cutting, and Figures 3 to 5 are An example of the cutter blade for cutting glass tubes for light bulbs according to the present invention is shown, with FIG. 3 being a side view, FIG. 4 being a perspective view, and FIG. 5 being a side view showing details during cutting. Explanation of the symbols: 1...Cutter blade for cutting glass tubes for light bulbs, 2...Disc body, 3...Blade tip, 5...Flat surface, 6...Slanted surface.
Claims (1)
下面の一方の面が円盤体の軸線に対して略垂直な
平面とされ他方の面が傾斜面とされることによつ
て形成されたことを特徴とする電球用ガラス管の
切断用カツター刃。 A cutting edge is formed on the circumferential surface of the disk, and the cutting edge is formed by having one of the upper and lower surfaces being a plane substantially perpendicular to the axis of the disk and the other surface being an inclined surface. A cutter blade for cutting glass tubes for light bulbs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3634384U JPS60147634U (en) | 1984-03-14 | 1984-03-14 | Cutter blade for cutting glass tubes for light bulbs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3634384U JPS60147634U (en) | 1984-03-14 | 1984-03-14 | Cutter blade for cutting glass tubes for light bulbs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60147634U JPS60147634U (en) | 1985-10-01 |
| JPS6342099Y2 true JPS6342099Y2 (en) | 1988-11-04 |
Family
ID=30541430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3634384U Granted JPS60147634U (en) | 1984-03-14 | 1984-03-14 | Cutter blade for cutting glass tubes for light bulbs |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60147634U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2641870A (en) * | 1950-12-06 | 1953-06-16 | Eisler Charles | Continuous tube crack-off machine |
-
1984
- 1984-03-14 JP JP3634384U patent/JPS60147634U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2641870A (en) * | 1950-12-06 | 1953-06-16 | Eisler Charles | Continuous tube crack-off machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60147634U (en) | 1985-10-01 |
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