JPH05285987A - Outer periphery holding structure of disk molding stamper - Google Patents
Outer periphery holding structure of disk molding stamperInfo
- Publication number
- JPH05285987A JPH05285987A JP8734892A JP8734892A JPH05285987A JP H05285987 A JPH05285987 A JP H05285987A JP 8734892 A JP8734892 A JP 8734892A JP 8734892 A JP8734892 A JP 8734892A JP H05285987 A JPH05285987 A JP H05285987A
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- ring member
- side mold
- mold plate
- fixed
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
- B29C45/2632—Stampers; Mountings thereof
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、ビデオディスクやオ
ーディオディスク等の円盤状記録媒体としてのディスク
の成形に関し、詳しくは、ディスクに情報トラック面と
してのピットパターンを転写するための母材であるスタ
ンパの外周部保持構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to molding of a disc as a disc-shaped recording medium such as a video disc or an audio disc, and more particularly to a base material for transferring a pit pattern as an information track surface onto the disc. The present invention relates to a structure for holding an outer peripheral portion of a stamper.
【０００２】[0002]
【従来の技術】この種のディスク成形においては、ピッ
トパターンが形成されたスタンパが金型の固定側型板と
可動側型板とのいずれか一方、または双方に取り付けら
れるが、型板に対するスタンパの取付は、内周部を内周
押え部材で押えるとともに外周部を外周押え部材で保持
する構成となっている。2. Description of the Related Art In this type of disk molding, a stamper having a pit pattern is attached to either or both of a fixed-side mold plate and a movable-side mold plate of a mold. The inner peripheral portion is held by the inner peripheral pressing member and the outer peripheral portion is held by the outer peripheral pressing member.
【０００３】外周押え部材は、型板間にキャビティの外
周域を密閉する状態に設けられるリング部材と、このリ
ング部材の内周に一体に形成されるスタンパ保持部とか
ら構成され、リング部材は一方の型板にボルトで着脱自
在に取り付けられるようになっている。The outer peripheral pressing member is composed of a ring member provided so as to seal the outer peripheral region of the cavity between the mold plates, and a stamper holding portion integrally formed on the inner periphery of the ring member. It is designed to be detachably attached to one template with bolts.
【０００４】[0004]
【発明が解決しようとする課題】ところで、上述のよう
な従来構成によれば、スタンパを交換する場合、ボルト
を外してからリング部材を手で持ちながら取り外し、別
のスタンパを内周押え部材で型板に取り付けた後、再び
リング部材をボルト固定しなければならないが、リング
部材はかなりの重量物であるために労力を要し、また、
床面に落として損傷する危険があるために注意を払う必
要があるなど、交換作業における面倒さ、煩雑さを来し
ていた。By the way, according to the above-mentioned conventional structure, when the stamper is replaced, the bolt is removed and then the ring member is removed while being held by hand, and another stamper is attached by the inner peripheral pressing member. After attaching to the template, the ring member must be bolted again, but it is laborious because the ring member is a considerable weight, and
Since there is a risk of dropping the floor and damaging it, it is necessary to pay attention to it, which is troublesome and complicated in the replacement work.
【０００５】そこで、この発明は、労力を要することな
く簡単な操作で容易且つ安全にスタンパ交換ができ、交
換作業の能率向上を図れるスタンパの外周部保持構造の
提供＊その目的とする。Therefore, the present invention provides a structure for holding an outer peripheral portion of a stamper, which enables easy and safe replacement of the stamper by a simple operation without requiring labor and improves efficiency of the replacement work.
【０００６】[0006]
【課題を解決するための手段】この発明は、上記目的を
達成すべく創案されたもので、その特徴は、金型の固定
側型板と可動側型板との間にキャビティ外周域を密閉す
る状態に設けられいずれか一方の型板に取り付けられる
リング部材と、このリング部材の内周に一体に形成され
るスタンパ保持部と、上記リング部材を固定側型板と可
動側型板とのいずれかに任意に取付変換可能な取付変換
部材とが備えられている構成にある。The present invention was devised to achieve the above-mentioned object, and is characterized in that a cavity outer peripheral region is sealed between a fixed mold plate and a movable mold plate of a mold. Of a ring member provided in a state of being attached to one of the template plates, a stamper holding portion integrally formed on the inner circumference of the ring member, and the ring member as a fixed-side template and a movable-side template. In any one of them, a mounting conversion member capable of arbitrary mounting conversion is provided.
【０００７】また、この発明によれば、上記取付変換部
材が固定側型板と可動側型板とのいずれか一方に挿通さ
れてリング部材に螺合される複数の通しボルトから成る
構成とすることができる。Further, according to the present invention, the attachment conversion member is constituted by a plurality of through bolts which are inserted into either the fixed side mold plate or the movable side mold plate and screwed into the ring member. be able to.
【０００８】[0008]
【作用】この発明によれば、スタンパを交換する場合、
型閉じ状態で取付変換部材によってリング部材が他方の
型板に取り付けられ、この状態で型開きがなされる。型
開き状態でスタンパが交換された後、型閉状態で取付変
換部材が操作され、リング部材がスタンパを有する型板
に取付変換される。According to the present invention, when the stamper is replaced,
The ring member is attached to the other mold plate by the attachment conversion member in the mold closed state, and the mold is opened in this state. After the stamper is replaced in the mold open state, the mounting conversion member is operated in the mold closed state, and the ring member is mounted and converted to the mold plate having the stamper.
【０００９】また、この発明によれば、型閉じ状態でリ
ング部材に螺合されている複数の通しボルトが順次外さ
れて他方の型板に挿通された後、リング部材の他側に螺
合される。全部の通しボルトの取付直しが終了するとリ
ング部材は他方の型板に固定された状態となり、かかる
状態で型開きがなされてスタンパが交換され、交換後型
閉じ状態で全ての通しボルトが元の型板に挿通されてリ
ング部材に螺合される。According to the present invention, the plurality of through bolts screwed to the ring member in the mold closed state are sequentially removed and inserted into the other mold plate, and then screwed to the other side of the ring member. To be done. When all the through bolts have been reattached, the ring member is fixed to the other mold plate, the mold is opened in this state and the stamper is replaced, and after replacement, all the through bolts are returned to their original positions. It is inserted into the template and screwed onto the ring member.
【００１０】[0010]
【実施例】図１乃至図３はこの発明の一実施例を示す。
金型２には、固定側型板４と可動側型板６とが備えられ
ており、ダイプレートを介することなくタイバー機能を
兼ねる２本のガイドロッド８で直接に支持されて開閉さ
れるようになっている。ガイドロッド８は、例えば型締
シリンダ（図示しない）のロッドを直接使用することが
でき、固定側型板４にベアリング部材１０で円滑摺動可
能に保持することができる。固定側型板４に形成された
ノズル案内孔４ａにノズル１２が挿入されて射出がなさ
れるようになっている。1 to 3 show an embodiment of the present invention.
The mold 2 is provided with a fixed-side mold plate 4 and a movable-side mold plate 6 so that the mold 2 can be directly supported and opened / closed by two guide rods 8 also having a tie bar function without using a die plate. It has become. The guide rod 8 can directly use, for example, a rod of a mold clamping cylinder (not shown), and can be held by the bearing member 10 on the fixed-side mold plate 4 so as to be slidable smoothly. The nozzle 12 is inserted into the nozzle guide hole 4a formed in the fixed-side mold plate 4 for injection.
【００１１】固定側型板４の中央部にはスプルブシュ１
４が取り付けられており、型対向面にはキャビティの構
成要素の一方をなす固定側鏡面部１６がスプルブシュ１
４に嵌合されるとともに外周部をボルト１７で固定され
て取り付けられている。固定側鏡面部１６には転写母材
としてのスタンパＳが取り付けられるようになってお
り、スタンパＳは、内周押え部材（図示しない）と外周
押え部材１８とで保持されるようになっている。The sprue bush 1 is provided at the center of the fixed-side template 4.
4 is attached, and a fixed side mirror surface portion 16 forming one of the components of the cavity is provided on the mold facing surface of the sprue bush 1.
4 is attached and the outer peripheral portion is fixed by a bolt 17 and attached. A stamper S as a transfer base material is attached to the fixed-side mirror surface portion 16, and the stamper S is held by an inner peripheral pressing member (not shown) and an outer peripheral pressing member 18. ..
【００１２】外周押え部材１８は、型間のスペーサを兼
ねるとともにキャビティの外周域を密閉するリング部材
２０と、このリング部材２０の内周に一体に形成される
スタンパ保持部２２とから構成されている。また、リン
グ部材２０の両側にはねじ孔２０ａが形成されており、
固定側型板４又は可動側型板６を貫通する取付変換部材
としての通しボルト２４で人力による保持操作を要する
ことなく固定側型板４と可動側型板６とのいずれかに任
意に取付変換できるようになっている。The outer peripheral pressing member 18 is composed of a ring member 20 which also serves as a spacer between the molds and seals the outer peripheral region of the cavity, and a stamper holding portion 22 which is integrally formed on the inner periphery of the ring member 20. There is. Further, screw holes 20a are formed on both sides of the ring member 20,
The fixed side template 4 or the movable side template 6 can be arbitrarily attached to either the fixed side template 4 or the movable side template 6 without the need for a holding operation by human power with a through bolt 24 as an attachment conversion member penetrating the fixed side template 4 or the movable side template 6. It can be converted.
【００１３】一方、可動側型板６の中央部にはゲートカ
ット部材２６が取り付けられており、型対向面にはキャ
ビティの構成要素の他方をなす可動側鏡面部２８が取付
けられている。ゲートカット部材２６は、可動側型板６
に固定されるシリンダ部材３０と、スプルエジェクタピ
ンを有するとともにシリンダ部材３０内に進退動可能に
設けられるカットピン３４とから構成されている。On the other hand, a gate cut member 26 is attached to the central portion of the movable side mold plate 6, and a movable side mirror surface portion 28 which is the other component of the cavity is attached to the mold facing surface. The gate cut member 26 is a movable side mold plate 6
And a cut pin 34 that has a sprue ejector pin and is movably provided in the cylinder member 30.
【００１４】可動側鏡面部２８は固定側鏡面部１６と同
様にシリンダ部材３０に嵌合されており、外周部をボル
ト２９で固定されている。The movable side mirror surface portion 28 is fitted to the cylinder member 30 similarly to the fixed side mirror surface portion 16, and the outer peripheral portion is fixed by bolts 29.
【００１５】次にスタンパ交換時の通しボルト２４によ
るリング部材２０の取付変換動作を説明する。型閉じの
状態で各通しボルト２４を順次取り外し、可動側型板６
の挿通孔６ａを介してリング部材２０の他側に螺合させ
る。各通しボルト２４を全て可動側型板６に取付けた状
態で型開きすると、図２及び図３に示すように、リング
部材２０は固定側型板４から可動側型板６へ取付変換さ
れる。Next, the mounting and converting operation of the ring member 20 by the through bolt 24 at the time of replacing the stamper will be described. With the mold closed, the through bolts 24 are sequentially removed, and the movable mold plate 6 is removed.
It is screwed to the other side of the ring member 20 through the insertion hole 6a. When the through bolts 24 are all attached to the movable side mold plate 6 and the mold is opened, the ring member 20 is converted from the fixed side mold plate 4 to the movable side mold plate 6 as shown in FIGS. 2 and 3. ..
【００１６】この状態でスタンパＳを固定側鏡面部１６
に密着させて内周押え部材で取り付け、この後、型閉じ
状態で各通しボルト２４を上記と同様の手順で固定側型
板４に取付け直すと、図１の状態と同様に外周押え部材
１８でスタンパＳの外周部が保持された状態となる。In this state, the stamper S is attached to the fixed side mirror surface portion 16
When the through bolts 24 are reattached to the fixed-side mold plate 4 in the mold closed state by the same procedure as described above, the outer peripheral pressing member 18 is attached to the outer peripheral pressing member 18 in the same manner as in FIG. Then, the outer peripheral portion of the stamper S is held.
【００１７】以上の構成によれば、通しボルト２４を移
し変えるという簡単な操作で、重量物である外周押え部
材１８を保持することなく容易にスタンパ交換状態を得
ることができ、よって作業能率の向上を図ることができ
るとともに、床面等に落下させる心配が全く無いので安
全性の向上を図ることができる。According to the above construction, the stamper exchange state can be easily obtained without holding the outer peripheral pressing member 18, which is a heavy object, by a simple operation of moving the through bolt 24, so that the work efficiency can be improved. In addition to being able to improve the safety, it is possible to improve the safety because there is no fear of dropping the floor or the like.
【００１８】なお、上記例では取付変換部材として通し
ボルト２４を例示したが、これに限られるものではな
く、例えばリング部材２０と各型板との間に係合による
ロック部材を設けて任意に着脱する構成とすることがで
きるなど、適宜に設計変更できるものである。In the above example, the through bolt 24 is shown as an example of the attachment conversion member, but the present invention is not limited to this. For example, a lock member by engagement may be provided between the ring member 20 and each template to arbitrarily set the bolt. The design can be changed as appropriate such that it can be attached and detached.
【００１９】[0019]
【発明の効果】この発明によれば、取付変換部材の操作
で、重量物であるリング部材を手で保持することなく容
易にスタンパ交換状態を得ることができ、よって作業能
率の向上を図ることができるとともに、床面等に落下さ
せる心配が全く無いのでリング部材の損傷事故の防止並
びに安全性の向上を図ることができる。According to the present invention, by operating the attachment conversion member, the stamper exchange state can be easily obtained without holding the ring member, which is a heavy object, by hand, thus improving the work efficiency. In addition, since there is no fear of dropping it on the floor surface or the like, it is possible to prevent damage accidents of the ring member and improve safety.
【図１】この発明に係るディスク成形用スタンパの外周
部保持構造の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of an outer peripheral portion holding structure of a disk molding stamper according to the present invention.
【図２】リング部材を取付変換して型開きした状態を示
す断面図である。FIG. 2 is a cross-sectional view showing a state in which a ring member is attached and converted to open the mold.
【図３】図２の要部拡大図である。FIG. 3 is an enlarged view of a main part of FIG.
２ 金型 ４ 固定側型板 ６ 可動側型板 ２０ リング部材 ２２ スタンパ保持部 ２４ 通しボルト（取付変換部材） 2 Mold 4 Fixed-side mold plate 6 Movable-side mold plate 20 Ring member 22 Stamper holding part 24 Through bolt (mounting conversion member)
Claims (2)
ャビティ外周域を密閉する状態に設けられいずれか一方
の型板に取り付けられるリング部材と、このリング部材
の内周に一体に形成されるスタンパ保持部と、上記リン
グ部材を固定側型板と可動側型板とのいずれかに任意に
取付変換可能な取付変換部材とが備えられているディス
ク成形用スタンパの外周部保持構造。1. A ring member which is provided between a fixed side mold plate and a movable side mold plate of a mold so as to seal an outer peripheral region of a cavity and is attached to one of the mold plates, and an inner circumference of the ring member. The outer periphery of the stamper for forming a disk, which includes a stamper holding portion integrally formed on the disk, and an attachment conversion member capable of arbitrarily attaching and converting the ring member to either the fixed-side mold plate or the movable-side mold plate. Part holding structure.
板とのいずれか一方に挿通されてリング部材に螺合され
る複数の通しボルトから成る請求項１記載のディスク成
形用スタンパの外周部保持構造。2. The disk molding stamper according to claim 1, wherein the attachment conversion member is composed of a plurality of through bolts which are inserted into one of the fixed-side mold plate and the movable-side mold plate and screwed into the ring member. Perimeter holding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4087348A JPH0729339B2 (en) | 1992-04-08 | 1992-04-08 | Disk mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4087348A JPH0729339B2 (en) | 1992-04-08 | 1992-04-08 | Disk mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05285987A true JPH05285987A (en) | 1993-11-02 |
| JPH0729339B2 JPH0729339B2 (en) | 1995-04-05 |
Family
ID=13912376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4087348A Expired - Lifetime JPH0729339B2 (en) | 1992-04-08 | 1992-04-08 | Disk mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729339B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0872325A1 (en) * | 1997-04-17 | 1998-10-21 | Sony DADC Austria AG | Stamper holder for automatic change-over |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110421A (en) * | 1984-06-26 | 1986-01-17 | Matsushita Electric Ind Co Ltd | Molding die for optical disc |
| JPS63303713A (en) * | 1987-06-05 | 1988-12-12 | Canon Inc | Mold for injection of optical disk |
-
1992
- 1992-04-08 JP JP4087348A patent/JPH0729339B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110421A (en) * | 1984-06-26 | 1986-01-17 | Matsushita Electric Ind Co Ltd | Molding die for optical disc |
| JPS63303713A (en) * | 1987-06-05 | 1988-12-12 | Canon Inc | Mold for injection of optical disk |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0872325A1 (en) * | 1997-04-17 | 1998-10-21 | Sony DADC Austria AG | Stamper holder for automatic change-over |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729339B2 (en) | 1995-04-05 |
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