JPH0450134B2 - - Google Patents
Info
- Publication number
- JPH0450134B2 JPH0450134B2 JP17181883A JP17181883A JPH0450134B2 JP H0450134 B2 JPH0450134 B2 JP H0450134B2 JP 17181883 A JP17181883 A JP 17181883A JP 17181883 A JP17181883 A JP 17181883A JP H0450134 B2 JPH0450134 B2 JP H0450134B2
- Authority
- JP
- Japan
- Prior art keywords
- polymer
- spinneret
- section
- discharge hole
- manufacturing
- 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
- 229920000642 polymer Polymers 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 238000009760 electrical discharge machining Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims 1
- 230000002950 deficient Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Punching Or Piercing (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Description
【発明の詳細な説明】
本発明は、異形紡糸口金の製造方法の改良に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the method of manufacturing a profiled spinneret.
従来、第１図に示す如くポリマー導入孔１に連
なる断面等角放射形、例えばＹ形のポリマー吐出
孔２を有する異形紡糸口金３を製造するには、口
金板３ａにポリマー導入孔１を穿設した後、第２
図に示す如く、切削による製作上止むなく各辺４
ａの基端挟角部４ｂにＲの付いた断面Ｙ形の放電
電極４による放電加工にてポリマー導入孔１の底
に断面Ｙ形のポリマー吐出孔２を穿設している。 Conventionally, in order to manufacture an irregularly shaped spinneret 3 having a polymer discharge hole 2 of a conformal radial shape, for example a Y-shape in cross section, connected to a polymer introduction hole 1 as shown in FIG. After setting the second
As shown in the figure, each side 4 is unavoidably manufactured by cutting.
A polymer discharge hole 2 having a Y-shaped cross section is bored at the bottom of the polymer introduction hole 1 by electrical discharge machining using a discharge electrode 4 having a Y-shaped cross section and having an R on the base end angle portion 4 b of the polymer inlet 1 .
そのポリマー吐出孔は第３図に示す如く各辺２
ａの基端挟角部２ｂにＲの付いた不良なポリマー
吐出孔２′となる。この為、従来はこの不良なポ
リマー吐出孔２′を直す為にリーマ加工により鎖
線に示す如く整形しているが、リーマ加工による
取り代５が大きいので加工に時間がかかり、また
各辺２ａの基端挟角部２ｂの内面に第４図に示す
如く薄片状のばり６が生じる。このばり６が生じ
たままのポリマー吐出孔２″より紡糸すると、糸
に傷が付くので、ばり６を取り除かなければなら
ないが、ばり６を取り除くことは極めて困難であ
る。 The polymer discharge holes are 2 on each side as shown in Figure 3.
This results in a defective polymer discharge hole 2' with a rounded base end narrow angle portion 2b. For this reason, conventionally, in order to correct this defective polymer discharge hole 2', it is reamed to shape it as shown by the chain line. As shown in FIG. 4, a flaky burr 6 is formed on the inner surface of the proximal narrow angle portion 2b. If the yarn is spun through the polymer discharge hole 2'' with the burrs 6 still formed, the yarn will be damaged, so the burrs 6 must be removed, but removing the burrs 6 is extremely difficult.
本発明は斯かる問題を解消すべくなされたもの
であり、ポリマー吐出孔の仕上げ整形に時間がか
からず、またばりが生じないようにした異形紡糸
口金の製造方法を提供せんとするものである。 The present invention has been made in order to solve such problems, and aims to provide a method for manufacturing an irregularly shaped spinneret in which finishing shaping of the polymer discharge hole does not take much time and does not cause burrs. be.
以下本発明による異形紡糸口金の製造方法の一
実施例を図によつて説明すると、第５図ａに示す
如く口金板３ａにポリマー導入孔１を穿設した
後、第６図に示す如く断面Ｙ形の各辺４ａの基端
挟角部４ｂにくぼみ７を設けた放電電極４′を用
いて第５図ｂに示す如くポリマー導入孔１の底に
放電加工にてポリマー吐出孔２を穿設し、然る後
ポリマー吐出孔２の断面Ｙ形の各辺２ａの基端挟
角部２ｂの内面に形成された突出部８を仕上げ整
形して第５図ｃに示す如く除去して異形紡糸口金
３′を得る。 Hereinafter, an embodiment of the method for manufacturing a deformed spinneret according to the present invention will be described with reference to the drawings. After forming a polymer introduction hole 1 in a spinneret plate 3a as shown in FIG. 5a, a cross-section as shown in FIG. Using a discharge electrode 4' having a recess 7 in the proximal corner 4b of each side 4a of the Y shape, a polymer discharge hole 2 is bored at the bottom of the polymer introduction hole 1 by electrical discharge machining, as shown in FIG. 5b. After that, the protrusions 8 formed on the inner surface of the proximal corner portion 2b of each side 2a of the Y-shaped cross section of the polymer discharge hole 2 are finished and shaped, and removed as shown in FIG. A spinneret 3' is obtained.
尚上記実施例は断面Ｙ形のポリマー吐出孔２を
有する異形紡糸口金３′を製造する場合であるが、
これに限るものではなく第７図ａに示す如く断面
Ｘ形のポリマー吐出孔１０、第７図ｂに示す如く
断面星型のポリマー吐出孔１１等を有する異形紡
糸口金を製造する場合もある。要はポリマー吐出
孔が断面等角放射形であれば良いものである。こ
れに応じてポリマー吐出孔を穿設する放電電極
は、断面Ｘ形、断面星形等の断面等角放射形とな
るものである。 In addition, although the above embodiment is a case of manufacturing an irregularly shaped spinneret 3' having a polymer discharge hole 2 having a Y-shaped cross section,
However, the present invention is not limited to this, and a spinneret having an irregular shape may be manufactured having a polymer discharge hole 10 having an X-shaped cross section as shown in FIG. 7a, a polymer discharge hole 11 having a star-shaped cross section as shown in FIG. 7b, and the like. In short, it is sufficient that the polymer discharge holes have a conformal radial cross section. Accordingly, the discharge electrode in which the polymer discharge holes are formed has a cross section of a conformal radial shape, such as an X-shaped cross section or a star-shaped cross section.
また本発明の製造方法に於いて用いる断面等角
放射形の放電電極の各辺の基端挟角部のくぼみ７
は第６図の如き角形に限るものではなく、第８図
ａに示す如く三角のくぼみ７′或いは第８図ｂに
示す如く半円のくぼみ７″であつても良いもので
ある。 In addition, the recesses 7 at the narrow angle portions of the proximal end of each side of the discharge electrode having an equiangular radial cross section used in the manufacturing method of the present invention.
is not limited to a square shape as shown in FIG. 6, but may be a triangular depression 7' as shown in FIG. 8a or a semicircular depression 7'' as shown in FIG. 8b.
本発明の異形紡糸口金の製造方法は、上記の説
明で判るように断面等角放射形の各辺の基端挟角
部にくぼみを設けた放電電極による放電加工によ
り、断面等角放射形で各辺の基端挟角部内面に突
出部を有するポリマー吐出孔を穿設するので、あ
とは突出部だけを仕上げ整形して除去するだけで
あるから加工による取り代が極めて小さい。従つ
て従来のように仕上げ整形に時間がかからず、異
形紡糸口金の製造能率が向上する。また、小さい
取り代での仕上げ整形されたポリマー吐出孔の各
辺の基端挟角部内面には、加工歪が少なくばりが
生じることが無いので、紡糸される糸に傷の付か
ない品質良好な異形紡糸口金を得ることができる
等の効果がある。 As can be seen from the above explanation, the method for manufacturing the irregularly shaped spinneret of the present invention is to produce a spinneret with a uniform radial cross section by electrical discharge machining using a discharge electrode that has a concave corner at the proximal end of each side with a uniform radial cross section. Since a polymer discharge hole having a protrusion is formed on the inner surface of the proximal end corner part of each side, only the protrusion needs to be finished and removed, so the machining allowance is extremely small. Therefore, the finishing shaping does not take as much time as in the prior art, and the production efficiency of irregularly shaped spinnerets is improved. In addition, the inner surface of the proximal corner part of each side of the polymer discharge hole, which has been finished and shaped with a small machining allowance, has little processing distortion and no burrs, so the quality is good with no damage to the spun yarn. There are effects such as being able to obtain a spinneret with a unique shape.
第１図は異形紡糸口金の要部縦断面図、第２図
は第１図の異形紡糸口金のポリマー吐出孔を穿設
する為の放電電極を示す如く斜視図、第３図は第
２図の放電電極による放電加工により得られたポ
リマー吐出孔を示す横断面図、第４図はそのポリ
マー吐出孔の各辺の基端挟角内面にばりが生じた
状態を示す横断面図、第５図ａ，ｂ，ｃは本発明
による異形紡糸口金の製造方法の工程を示す平面
図、第６図は本発明の製造方法に於いて用いに放
電電極の斜視図、第７図ａ，ｂは異形紡糸口金の
ポリマー吐出孔の断面形状の他の例を示す図、第
８図ａ，ｂは本発明の製造方法に於いて用いる放
電電極の他の例を示す斜視図である。
１……ポリマー導入孔、２……ポリマー吐出
孔、２ａ……ポリマー吐出孔の各辺、２ｂ……各
辺の基端挟角部、３′……本発明の製造方法によ
り得られた異形紡糸口金、３ａ……口金板、４′
……放電電極、４ａ……放電電極の各辺、４ｂ…
…各辺の基端挟角部、７，７′，７″……くぼみ、
８……突出部、１０，１１……ポリマー吐出孔。
Fig. 1 is a vertical cross-sectional view of the main part of the irregularly shaped spinneret, Fig. 2 is a perspective view showing the discharge electrode for forming the polymer discharge hole of the irregularly shaped spinneret of Fig. 1, and Fig. 3 is the same as that of Fig. 2. FIG. 4 is a cross-sectional view showing a polymer discharge hole obtained by electrical discharge machining using a discharge electrode; FIG. Figures a, b, and c are plan views showing the steps of the manufacturing method of a irregularly shaped spinneret according to the present invention, Figure 6 is a perspective view of a discharge electrode used in the manufacturing method of the present invention, and Figures 7a and b are Figures 8a and 8b are perspective views showing other examples of the discharge electrode used in the manufacturing method of the present invention. 1...Polymer introduction hole, 2...Polymer discharge hole, 2a...Each side of the polymer discharge hole, 2b...Proximal narrow angle portion of each side, 3'...Deformed shape obtained by the manufacturing method of the present invention Spinneret, 3a... Spinneret plate, 4'
...discharge electrode, 4a...each side of the discharge electrode, 4b...
...base end angle part of each side, 7, 7', 7''...indentation,
8... Projection, 10, 11... Polymer discharge hole.
Claims (1)
リマー吐出孔を有する異形紡糸口金を製造するに
於いて、口金板にポリマー導入孔を穿設後、断面
等角放射形の各辺の基端挟角部にくぼみを設けた
放電電極による放電加工にてポリマー吐出孔を穿
設し、然る後ポリマー吐出孔の断面等角放射形の
各辺の基端挟角部内面に形成された突出部を仕上
げ整形して除去することを特徴とする異形紡糸口
金の製造方法。1. When manufacturing a modified spinneret having a polymer discharge hole with an equiangular radial cross section connected to the polymer introduction hole, after drilling the polymer introduction hole in the spinneret plate, the proximal end of each side of the equiangular radial cross section is A polymer discharge hole is drilled by electrical discharge machining using a discharge electrode with a recessed corner, and then a protrusion is formed on the inner surface of the proximal corner of each side of the polymer discharge hole with an equiangular radial cross section. A method for manufacturing a deformed spinneret, characterized by finishing and removing the spinneret.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17181883A JPS6067034A (en) | 1983-09-17 | 1983-09-17 | Method of manufacturing spinneret having peculiar shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17181883A JPS6067034A (en) | 1983-09-17 | 1983-09-17 | Method of manufacturing spinneret having peculiar shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067034A JPS6067034A (en) | 1985-04-17 |
| JPH0450134B2 true JPH0450134B2 (en) | 1992-08-13 |
Family
ID=15930299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17181883A Granted JPS6067034A (en) | 1983-09-17 | 1983-09-17 | Method of manufacturing spinneret having peculiar shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067034A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458638B (en) * | 2014-08-28 | 2019-05-10 | 无锡格瑞斯精密机械有限公司 | A kind of top rod mold processing technology |
-
1983
- 1983-09-17 JP JP17181883A patent/JPS6067034A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067034A (en) | 1985-04-17 |
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