JPH01127720U - - Google Patents
Info
- Publication number
- JPH01127720U JPH01127720U JP2137688U JP2137688U JPH01127720U JP H01127720 U JPH01127720 U JP H01127720U JP 2137688 U JP2137688 U JP 2137688U JP 2137688 U JP2137688 U JP 2137688U JP H01127720 U JPH01127720 U JP H01127720U
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- mold
- injection molding
- disk
- outer periphery
- 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
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
Landscapes
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
第１図は本考案に係る射出成形装置の一実施例
を示す断面図、第２図はコンパクトデイスク等を
射出成形するための一般的な射出成形装置の金型
の断面図、第３図は外周側に凸部が形成されたデ
イスクを示す側断面図、第４図は第３図に示すデ
イスクを射出成形する従来の射出成形装置の金型
の断面図、第５図は歪んだスタンパを示す断面図
である。
１５，１６……金型、１５ｂ，１６ｂ……凹部
、１５ｃ，１６ｃ……溝、１７……スタンパ、１
７ｂ……凹部、１８，１９……センタホルダ、２
３……吸引装置。
Fig. 1 is a sectional view showing an embodiment of an injection molding apparatus according to the present invention, Fig. 2 is a sectional view of a mold of a general injection molding apparatus for injection molding compact disks, etc. 4 is a sectional side view showing a disk with a convex portion formed on the outer periphery; FIG. 4 is a sectional view of a mold of a conventional injection molding apparatus for injection molding the disk shown in FIG. 3; and FIG. FIG. 15, 16... Mold, 15b, 16b... Recess, 15c, 16c... Groove, 17... Stamper, 1
7b... recess, 18, 19... center holder, 2
3...Suction device.
Claims (1)
射出成形装置であつて、 上記デイスクにおける凸部を形成するための凹
部が外周側に形成された信号面形成用のスタンパ
と、 このスタンパに形成された凹部と相対係合する
凹部を有し、これらの凹部の相対嵌合によつてこ
のスタンパの外周が規制されるとともに、このス
タンパの中心部をセンタホルダによつて保持する
金型と、 この金型の表面とスタンパの表面との間を負圧
にする吸引装置とを備え、 この吸引装置によつて上記スタンパの全面を金
型に対して密着固定するようにしたことを特徴と
する射出成形装置。[Claims for Utility Model Registration] An injection molding device for molding a disk having a convex portion formed on the outer periphery thereof, which is for forming a signal surface in which a concave portion for forming the convex portion of the disk is formed on the outer periphery side. a stamper, and a recess that relatively engages with the recess formed in the stamper, and the outer circumference of the stamper is regulated by the relative engagement of these recesses, and the center of the stamper is connected to the center holder. a mold to be held by the stamper; and a suction device that applies negative pressure between the surface of the mold and the surface of the stamper, and the entire surface of the stamper is tightly fixed to the mold by the suction device. An injection molding device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137688U JPH01127720U (en) | 1988-02-19 | 1988-02-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2137688U JPH01127720U (en) | 1988-02-19 | 1988-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127720U true JPH01127720U (en) | 1989-08-31 |
Family
ID=31238565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2137688U Pending JPH01127720U (en) | 1988-02-19 | 1988-02-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127720U (en) |
-
1988
- 1988-02-19 JP JP2137688U patent/JPH01127720U/ja active Pending