JPS6159209B2 - - Google Patents
Info
- Publication number
- JPS6159209B2 JPS6159209B2 JP6143082A JP6143082A JPS6159209B2 JP S6159209 B2 JPS6159209 B2 JP S6159209B2 JP 6143082 A JP6143082 A JP 6143082A JP 6143082 A JP6143082 A JP 6143082A JP S6159209 B2 JPS6159209 B2 JP S6159209B2
- Authority
- JP
- Japan
- Prior art keywords
- disk
- center
- disc
- mold
- molding
- 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 26
- 229920005989 resin Polymers 0.000 claims description 26
- 238000000465 moulding Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/42—Removing or ejecting moulded articles using means movable from outside the mould between mould parts, e.g. robots
- B29C45/4225—Take-off members or carriers for the moulded articles, e.g. grippers
-
- 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
- B29C45/1759—Removing sprues from sprue-channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は音声レコードやビデオデイスク等の円
盤状記録媒体（以下デイスクと呼ぶ）の成形装置
に関するもので、デイスク成形時に、成形された
デイスクの中心孔部に残る不要残留樹脂とデイス
クとを同時に取り出すよう構成したものである。
デイスクの成形時にデイスクの中心孔部に残る不
要残留樹脂は一部硬化されているため、次のデイ
スク成形に先立つて、この不要残留樹脂を取り除
くことが必要である。また、当然のことながら成
形されたデイスクもデイスクの記録面に触れない
ように取出す必要がある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding device for disc-shaped recording media (hereinafter referred to as discs) such as audio records and video discs. The structure is such that the resin and the disk can be taken out at the same time.
Since the unnecessary residual resin remaining in the center hole of the disk during disk molding is partially cured, it is necessary to remove this unnecessary residual resin before the next disk molding. Naturally, it is also necessary to take out the molded disk without touching the recording surface of the disk.
従来の成形装置において、このデイスクと不要
残留樹脂を取り出す構成として次のような構成が
取られている。 In the conventional molding apparatus, the following structure is adopted as a structure for removing the disk and unnecessary residual resin.
(イ) 金型面よりデイスクを取出した後に、センタ
ー金具内の残留樹脂を少量だけ射出あるいは押
出して、取出しアームで挾み取る方法がある
が、材料の使用量が増え不経済である。(a) After taking out the disk from the mold surface, there is a method of injecting or extruding a small amount of the residual resin in the center metal fitting and picking it up with a take-out arm, but this method increases the amount of material used and is uneconomical.
また、少量の材料を正確な量で出す事は大変
不安定になり、毎回のデイスク材射出量及び押
出量が変動する問題がある。 In addition, dispensing a small amount of material in an accurate amount becomes very unstable, and there is a problem in that the amount of disk material injected and the amount of extrusion varies each time.
(ロ) デイスク中心部に残留不要樹脂を付けたまま
同一品として取出し、成形装置外部にて打抜等
別手段にてデイスク中心孔を作る方法もある
が、高品質、高精密デイスクには不向で、複雑
にして高価な装置となる。(b) There is also a method of taking out the disc as the same product with unnecessary residual resin attached to the center of the disc and making the disc center hole by other means such as punching outside the molding machine, but this method is not suitable for high-quality, high-precision discs. This results in complicated and expensive equipment.
(ハ) それぞれ専用のデイスク取出しアームと中心
孔部残留樹脂取出しアームを用いてそれぞれ取
出す方法もあるが、複雑になると共に、金型面
上に不要な装置を接近させる事はビデイオデイ
スクの様に、高品質、高精密成形を要するデイ
スクには、防塵上も良くない。(c) There is also a method of taking out each disc using a dedicated disk take-out arm and a center hole residual resin take-out arm, but this is complicated and requires unnecessary equipment to be brought close to the mold surface, similar to a video disk. In addition, it is not good for dustproofing for disks that require high-quality, high-precision molding.
上記問題点にからみ以下本発明の一実施例を図
と共に説明する。第１図は本発明のデイスク取出
し装置を含む成形装置の正面図で、２４は下部固
定盤、１７は上部固定盤で、この両者はダイバー
２３，２３′で連結されており、このダイバー２
３，２３′に摺動自在に挿通して設けられた可動
盤１８は、下部固定盤２４内にあるラム１９とシ
リンダー２０からなる対向型締機構により、下部
固定盤２４と上部固定盤１７の間を上下動する様
になつている。デイスク成形用下金型２は可動盤
１８に固定され、デイスク成形用上金型１は上部
固定盤１７に固定されている。これらの金型１，
２は加熱冷却機能を備え型締機構と図示しないが
油圧制御回路からなる駆動手段により、第１図の
様に、両金型間隔が開いた状態で、デイスク取出
しアーム１２が両金型間に入つている位置と、第
３図Ａのデイスク材料供給位置と、第３図Ｂに示
される両金型が圧接された型締位置の三位置に制
御される。当然、第３図Ｂ時には、デイスク取出
しアーム１２は旋回および上下駆動機構２６の駆
動で金型間の外部に位置している。フロー押え機
構２１，２１′は下金型２の外周部なる位置で可
動盤上に取付られて、本機構２１，２１′にエア
ー等を供給する事でフロー押え先端が下金型２面
のスタンパー３の外周部を押える位置と第３図Ｆ
の様上方位置の二位置に動く。シリンダー１８
は、可動盤１８の内部に埋設されており、下金型
センター金具６の中央部に摺動可能に設けられ、
先端に係合突部７ａを有するピン７を上下摺動す
る。５，６なる両センター金具は、両金型表面に
スタンパー３，３′を固着し、金型裏面より止矢
２５，２５′でそれぞれ固定されている。 In consideration of the above problems, one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a molding apparatus including a disk ejecting device of the present invention, 24 is a lower fixed plate, 17 is an upper fixed plate, and both are connected by divers 23 and 23'.
3 and 23', the movable platen 18 is slidably inserted into the lower fixed platen 24 and the upper fixed platen 17 by an opposing mold clamping mechanism consisting of a ram 19 and a cylinder 20 in the lower fixed platen 24. It seems to move up and down between the two. The lower disk molding mold 2 is fixed to a movable platen 18, and the upper disk molding mold 1 is fixed to an upper fixed platen 17. These molds 1,
Reference numeral 2 has a heating and cooling function, and a driving means consisting of a mold clamping mechanism and a hydraulic control circuit (not shown) allows the disk take-out arm 12 to be moved between the two molds with the gap between the two molds being wide, as shown in FIG. The disk material supply position shown in FIG. 3A, and the mold clamping position where both molds are pressed together as shown in FIG. 3B are controlled. Naturally, at the time of FIG. 3B, the disk take-out arm 12 is located outside between the molds due to the rotation and driving of the vertical drive mechanism 26. The flow presser mechanisms 21 and 21' are mounted on the movable platen at the outer periphery of the lower mold 2, and by supplying air etc. to the mechanisms 21 and 21', the tip of the flow presser is placed on the lower mold 2 surface. Position to press the outer periphery of stamper 3 and Fig. 3 F
It moves to two positions, such as the upper position. cylinder 18
is embedded inside the movable platen 18 and is slidably provided in the center of the lower mold center fitting 6,
A pin 7 having an engaging protrusion 7a at its tip is slid up and down. Both center metal fittings 5 and 6 have stampers 3 and 3' fixed to the surfaces of both molds, and are fixed from the back surface of the mold with bolts 25 and 25', respectively.
第２図は本発明に使用されるデイスク取出アー
ム１２の先端拡大断面図である。１３はデイスク
用吸盤、１４は固定ホルダー、１５は可動ホルダ
ーでホルダー摺動シリンダー１６に連結され、こ
のシリンダー１６にエアー等を供給し前後に摺動
する構造である。又この両ホルダーで物を挾み込
み圧接する面はすべらない様微小な凸凹加工がし
てある。デイスク用吸盤１３には真空源が接続さ
れ、デイスクを吸着、離反する両機能をもつてい
る。デイスク取出アーム１２は旋回上下駆動部２
６で図示していないが他からの制御信号と動力源
で旋回および上下動し、旋回運動より第３図Ｃの
様に両金型１，２間に位置する位置と両金型間の
外部に位置する位置とを取り得るとともに上下駆
動により第３図Ｃ位置と第３図Ｄ位置の上下二位
置に制御される。 FIG. 2 is an enlarged sectional view of the tip of the disk ejecting arm 12 used in the present invention. 13 is a suction cup for a disc, 14 is a fixed holder, and 15 is a movable holder connected to a holder sliding cylinder 16, which is configured to slide back and forth by supplying air or the like to this cylinder 16. Also, the surfaces of both holders that hold and press objects are machined with minute irregularities to prevent them from slipping. A vacuum source is connected to the disc suction cup 13, which has the functions of both attracting and releasing the disc. The disk take-out arm 12 is a rotating vertical drive unit 2
6, which is not shown in the figure, rotates and moves up and down using a control signal from another source and a power source, and due to the rotating movement, as shown in Figure 3C, the position between the two molds 1 and 2 and the outside between the two molds. It can be controlled to two positions, the C position in FIG. 3 and the D position in FIG. 3, by vertical driving.
次に第３図を中心にして動作を説明する。 Next, the operation will be explained with reference to FIG.
第３図Ａは、成形樹脂の射出状態を示すもの
で、上部固定盤１７上に設けられた成形材料供給
装置２２の射出ノズル９より成形樹脂４が上セン
ター金具５を介して両金型１，２間に所定量だけ
射出される。 FIG. 3A shows the injection state of the molding resin, in which the molding resin 4 is passed from the injection nozzle 9 of the molding material supply device 22 provided on the upper fixed platen 17 to both molds 1 through the upper center fitting 5. , a predetermined amount is injected between the two.
この状態ではピン７の先端は下センター金具６
の中心部に設けられた円柱状の凸部６ａの先端部
と一致している。 In this state, the tip of the pin 7 is connected to the lower center metal fitting 6.
It coincides with the tip of the cylindrical protrusion 6a provided at the center of the cylindrical projection 6a.
第３図Ｂは、第３図Ａの状態から前記ラム１９
とシリンダー２０からなる型締機構により上金型
１と下金型２が圧接された型締位置を示すもの
で、加熱冷却機能を備えた両金型は加熱状態から
冷却状態になり、成形樹脂４は硬化し、デイスク
１０が成形され、同時に、デイスク中心孔も下金
型センター金具６の先端の凸型部６ａと上センタ
ー金具５の凹部５ａとの係合により成形される。
この時両金型センター金具間の凸部と凹部の深部
に中心孔残留樹脂なる半硬化の高品質ビデイオデ
イスク等には不適当な不宛定樹脂４ａが残る。
又、この状態の時材料４が型締されて冷却硬化し
たデイスク１０は外周部にフローを出し、２１な
るフロー押え機構の先端部にくい込み保持された
状態である。 FIG. 3B shows the state of the ram 19 in FIG. 3A.
This shows the mold clamping position where the upper mold 1 and the lower mold 2 are pressed together by the mold clamping mechanism consisting of the cylinder 20 and the cylinder 20. Both molds equipped with heating and cooling functions change from the heating state to the cooling state, and the molding resin 4 is hardened to form the disk 10, and at the same time, the disk center hole is also formed by engagement between the convex portion 6a at the tip of the lower mold center fitting 6 and the recessed portion 5a of the upper center fitting 5.
At this time, the resin 4a remaining in the center hole, which is unsuitable for a semi-cured high quality video disc, remains in the deep part of the convex part and the concave part between the center fittings of both molds.
Further, in this state, the disk 10, in which the material 4 is mold-clamped and cooled and hardened, releases a flow to the outer periphery, and is held by being wedged into the tip of the flow holding mechanism 21.
第３図Ｃは前記型開機構により上金型１と下金
型２が最も開きデイスク取出位置を示すもので、
この時デイスク１０のフロー外周部は２１のフロ
ー押え機構の先端部で強制的に押えられて保持さ
れて、デイスク１０は下金型２側に残る。又、こ
の時ピン７での先端の係合突起７ａに係合されて
中心孔部残留半硬化樹脂４ａが上金型センター金
具５の下面凹型部５ａの円錐状頂点の材料供給孔
の最細部より引き切られて下金型センター金具６
の凸型部上に残る。 FIG. 3C shows the disk removal position when the upper mold 1 and lower mold 2 are fully opened by the mold opening mechanism.
At this time, the flow outer periphery of the disk 10 is forcibly pressed and held by the tip of the flow holding mechanism 21, and the disk 10 remains on the lower mold 2 side. Also, at this time, the semi-cured resin 4a remaining in the center hole is engaged with the engagement protrusion 7a at the tip of the pin 7, and the semi-cured resin 4a remains at the lowest part of the material supply hole at the conical apex of the lower surface concave portion 5a of the upper mold center fitting 5. The lower mold center metal fitting 6 is pulled off.
It remains on the convex part of.
そして、デイスク取出アーム１２は前記旋回上
下駆動部２６により金型外部より両金型間のデイ
スク中心部上の位置に駆動される。第３図Ｄは第
３図Ｃの状態からデイスク１０の吸着の為、デイ
スク取出しアーム１２がデイスク１０の中心部で
記録面以外の中心孔近傍部分をデイスク用吸盤１
３が接する位置まで前記旋回上下駆動部２６によ
り下げられ、デイスク用吸盤１３に接続されてい
る吸込口２７に真空源を接続し、デイスク１０を
吸着する状態を示している。この時、同時に下金
型センター金具６の凸型部６ａ上にあり、ピン７
に絡係合保持されている中心孔部残留樹脂４ａ
を、前記シリンダー８でピン７を押上げる事でデ
イスク取出アーム１２の中心部にある固定ホルダ
ー１４と可動ホルダー１５間に、中心孔部残留樹
脂４ａの先端が入つた位置まで押上げられ、次に
第３図Ｅの様に可動ホルダー１５が前進して、ピ
ン７上の中心孔部残留樹脂４ａは可動ホルダー１
５の先端部で押されて固定ホルダー１４側に移動
し、両ホルダー１４，１５先端間に挾み込まれ
る。 Then, the disk take-out arm 12 is driven from outside the mold to a position above the center of the disk between the two molds by the rotating vertical drive section 26. In FIG. 3D, in order to suction the disk 10 from the state shown in FIG.
The vacuum source is connected to the suction port 27 connected to the disk suction cup 13, and the disk 10 is sucked. At this time, the pin 7 is on the convex part 6a of the lower mold center fitting 6 at the same time.
The residual resin 4a in the center hole is held entwined with the
By pushing up the pin 7 with the cylinder 8, the tip of the center hole residual resin 4a is pushed up between the fixed holder 14 and the movable holder 15 in the center of the disk ejecting arm 12, and then The movable holder 15 moves forward as shown in FIG.
5 and moves toward the fixed holder 14, and is inserted between the ends of both holders 14 and 15.
この時中心孔部残留樹脂４２はピン７上を横移
動する事でピン７の係合突起部７ａで保持されて
いたのがはずれてしまう。 At this time, the resin 42 remaining in the center hole moves laterally on the pin 7, so that the resin 42 held by the engagement protrusion 7a of the pin 7 comes off.
次に、ピン７が当初の最下位置にもどつた状態
を第３図Ｅは図示している。この状態ではデイス
ク取出アーム１２はデイスク１０を吸着し、中心
孔部残留樹脂４ａを挾み込みこれらの両者を同時
に保持している。次にデイスク取出アーム１２
は、前記第３図Ｃと同様の金型間の上位置に旋回
上下駆動部２６により押上げられ、第３図Ｆ位置
となる。同時にフロー押え機構２１，２１′の先
端が、デイスク１０外周フローに食い込んだまま
動き、デイスク１０を持上げ、剥す動作をする。
次工程でデイスク取出しアーム１２は金型外部に
旋回し、スタート位置にもどり、一連の動作を続
ける。以上の様に、上金型センター金具５の上部
より、ノズル９を通して材料供給する成形装置で
説明したが、外部にて予備成形されたデイスク材
なる樹脂を金型間中心部に、別なる手段で入れて
成形する方法でも同様の効果はある。 Next, FIG. 3E shows the state in which the pin 7 has returned to its original lowermost position. In this state, the disk take-out arm 12 attracts the disk 10, pinches the resin 4a remaining in the center hole, and holds both of them at the same time. Next, the disk eject arm 12
is pushed up by the swing vertical drive unit 26 to the upper position between the molds similar to that shown in FIG. 3C, and becomes the position F in FIG. 3. At the same time, the tips of the flow holding mechanisms 21, 21' move while biting into the flow around the outer circumference of the disk 10, lifting the disk 10 and peeling it off.
In the next step, the disk take-out arm 12 pivots to the outside of the mold, returns to the starting position, and continues the series of operations. As described above, although the molding apparatus has been described in which material is supplied from the upper part of the upper mold center fitting 5 through the nozzle 9, another method is used to supply the resin, which is a disk material preformed externally, to the center between the molds. A similar effect can be obtained by inserting and molding.
以上のように本発明によると、デイスクと中心
孔部残留樹脂の両者を同時に一本の構造の取出ア
ームで金型外に取り出すことが出き、装置の簡素
化及びプレスサイクルも短縮出きる。 As described above, according to the present invention, both the disk and the resin remaining in the center hole can be simultaneously taken out of the mold using a single take-out arm, and the apparatus can be simplified and the press cycle can be shortened.
また、中心孔径の比較的大きなビデイオデイス
ク等で、デイスクと中心孔を同時成形する時に
は、中心孔部の残留半硬化樹脂量も多く、この残
留樹脂を１枚のデイスク成形ごとに確実にデイス
クと同時に取出す事が出来、大中心孔径を有する
ビデイオデイスクには特に効果的である。 In addition, when molding the disc and the center hole at the same time for a video disc with a relatively large center hole diameter, there is a large amount of residual semi-cured resin in the center hole, and this residual resin can be reliably removed from the disk each time one disc is molded. It can be taken out at the same time, and is particularly effective for video discs with a large central hole diameter.
さらに、デイスク中心孔部の残留樹脂を取り出
す他の方法に比べ、デイスク記録面上に何ら触れ
ることが無く、デイスクと同時に取出す為、品質
上、防塵上からも良いものである。 Furthermore, compared to other methods for removing the residual resin from the center hole of the disk, this method does not touch the recording surface of the disk and is removed at the same time as the disk, so it is better in terms of quality and dust prevention.
第１図は本発明の一実施例における円盤状記録
媒体の成形装置の一部切欠側面図、第２図は同要
部の一部切欠側面図、第３図Ａ，Ｂ，Ｃ，Ｄ，
Ｅ，Ｆはそれぞれ同要部の異なる動作状態を示す
側断面図である。
１……上金型、２……下金型、３……スタンパ
ー、４……デイスク材料、５……上金型センター
金具、６……下金型センター金具、７……Ｚ型ピ
ン、８……シリンダー、９……ノズル、１０……
デイスク、１１……中心孔部残留樹脂、１２……
デイスク取出アーム、１３……デイスク用吸盤、
１４……固定ホルダー、１５……可動ホルダー、
１６……ホルダー用シリンダー、１７……上部固
定盤、１８……可動盤、１９……ラム、２０……
シリンダー、２１……フロー押え機構、２２……
材料供給機構、２３……タイバー、２４……下部
固定盤、２５……止め矢、２６……旋回上下駆動
部、２７……吸込口。
FIG. 1 is a partially cutaway side view of a disk-shaped recording medium forming apparatus according to an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the same essential parts, and FIGS. 3A, B, C, D,
E and F are side sectional views showing different operating states of the same essential parts, respectively. 1... Upper mold, 2... Lower mold, 3... Stamper, 4... Disk material, 5... Upper mold center fitting, 6... Lower mold center fitting, 7... Z-type pin, 8...Cylinder, 9...Nozzle, 10...
Disc, 11... Center hole residual resin, 12...
Disk ejection arm, 13... Disc suction cup,
14... fixed holder, 15... movable holder,
16... Holder cylinder, 17... Upper fixed plate, 18... Movable plate, 19... Ram, 20...
Cylinder, 21...Flow presser mechanism, 22...
Material supply mechanism, 23... tie bar, 24... lower fixed plate, 25... stop arrow, 26... swinging vertical drive unit, 27... suction port.
Claims (1)
れた一対の金型の一方に固定された中心孔成形用
センター金具と、前記一対の金型間で成形された
円盤状記録媒体を前記中心孔成形用金具の設けら
れた金型上に保持する第１の保持手段と、成形時
に円盤状記録媒体の中心部に生じる残留樹脂を前
記中心孔成形用センター金具側に保持する第２の
保持手段と、前記一対の金型間の第１の位置と前
記一対の金型間外の第２の位置との間を移動可能
であるとともに前記第１の位置において前記金型
上の円盤状記録媒体に近接離反する方向に移動可
能な取出しアームと、その取出しアームにそれぞ
れ設けられた前記円盤状記録媒体を吸引保持する
第３の保持手段と、前記残留樹脂を前記第２保持
手段より離反せしめて保持する第４の保持手段と
を有することを特徴とする円盤状記録媒体の成形
装置。1. A mold clamping device, a center hole molding center fitting fixed to one of a pair of molds attached to the mold clamping device, and a disc-shaped recording medium molded between the pair of molds into the center hole. A first holding means for holding on a mold provided with a molding fitting; and a second holding means for holding residual resin generated at the center of the disc-shaped recording medium during molding on the side of the center hole molding center fitting. and a disc-shaped recording medium that is movable between a first position between the pair of molds and a second position outside the pair of molds, and is on the mold at the first position. a take-out arm movable in a direction toward and away from the take-out arm; third holding means provided on each take-out arm for sucking and holding the disk-shaped recording medium; and a third holding means for separating the residual resin from the second holding means. 1. A molding device for a disc-shaped recording medium, comprising a fourth holding means for holding the disc-shaped recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6143082A JPS58177326A (en) | 1982-04-12 | 1982-04-12 | Apparatus for molding disklike recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6143082A JPS58177326A (en) | 1982-04-12 | 1982-04-12 | Apparatus for molding disklike recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58177326A JPS58177326A (en) | 1983-10-18 |
| JPS6159209B2 true JPS6159209B2 (en) | 1986-12-15 |
Family
ID=13170839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6143082A Granted JPS58177326A (en) | 1982-04-12 | 1982-04-12 | Apparatus for molding disklike recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58177326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262934A (en) * | 2018-09-04 | 2019-01-25 | 安徽森德自动化工业股份有限公司 | A kind of hot press for plastic tableware |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239776A1 (en) * | 1992-11-26 | 1994-06-01 | Polygram Record Service Gmbh | Injection or injection compression machine for prodn. of information=carrying discs - has two or more adjacent tools each supplied with polymer from separate injection units |
| US5391332A (en) * | 1993-12-21 | 1995-02-21 | Wea Manufacturing Inc. | Method of removing stuck sprue |
| US5798127A (en) * | 1995-09-15 | 1998-08-25 | The Goodyear Tire & Rubber Company | Injection molding of a tire component |
| TWI449618B (en) * | 2012-09-04 | 2014-08-21 | Briview Corp | Release assisting apparatus |
| CN111016053B (en) * | 2019-12-31 | 2022-02-22 | 诺博橡胶制品有限公司 | Rubber shock-absorbing part forming device and forming method and production machine group with device |
-
1982
- 1982-04-12 JP JP6143082A patent/JPS58177326A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262934A (en) * | 2018-09-04 | 2019-01-25 | 安徽森德自动化工业股份有限公司 | A kind of hot press for plastic tableware |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58177326A (en) | 1983-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4372741A (en) | Hot sprue valve assembly for an injection molding machine | |
| US4466934A (en) | Hot sprue valve assembly for an injection molding machine | |
| JPS6159209B2 (en) | ||
| EP0729405B1 (en) | Optical disk removal from injection mold | |
| JP2901837B2 (en) | Vertical injection molding machine | |
| JP3222830B2 (en) | Gate cutting device and gate cutting method for disk molding device | |
| JP3517770B2 (en) | Disc molding method | |
| JPH11268048A (en) | Air blowing method of die for molding disk and die | |
| JPS59230731A (en) | Injection molding apparatus for thin disc opened at center thereof | |
| JPS6131219A (en) | Cleaning structure of disk mold | |
| JP3473149B2 (en) | Method of manufacturing resin disk substrate | |
| JPS6345293B2 (en) | ||
| JP2772336B2 (en) | Injection molding equipment | |
| JP2553623B2 (en) | Disc release method | |
| JP3326039B2 (en) | Continuous molding equipment for resin molded products | |
| JPS58193121A (en) | Molding device for disk recording medium | |
| JP2000052383A (en) | Molded product release method for injection holding machine | |
| JP3346805B2 (en) | Disc molding die | |
| JPH04128020A (en) | Molding method of molding and its mold | |
| JP2000263591A (en) | Injection molding machine | |
| KR0125144Y1 (en) | Ejecting apparatus for injection molding articles | |
| JPS62198422A (en) | Injection molder for disk | |
| JPH07156218A (en) | Mold for optical disk substrate and molding method | |
| JP2003011181A (en) | Mold assembly | |
| JP2003211513A (en) | Injection molding machine |