TW469216B - Method for injection-molding disk-shaped information supports - Google Patents

Method for injection-molding disk-shaped information supports Download PDF

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Publication number
TW469216B
TW469216B TW89100561A TW89100561A TW469216B TW 469216 B TW469216 B TW 469216B TW 89100561 A TW89100561 A TW 89100561A TW 89100561 A TW89100561 A TW 89100561A TW 469216 B TW469216 B TW 469216B
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TW
Taiwan
Prior art keywords
mold
data carrier
data
patent application
scope
Prior art date
Application number
TW89100561A
Other languages
Chinese (zh)
Inventor
Martin Eichlseder
Original Assignee
Krauss Maffei Kunststofftech
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Publication of TW469216B publication Critical patent/TW469216B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/263Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/263Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • B29C2045/2665Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs using vacuum means for holding the disc on one of the mould walls during opening of the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/43Removing or ejecting moulded articles using fluid under pressure

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention relates to a method for producing a disk-shaped information support in an injection molding machine. According to stated method, the information support is injected into a mould cavity and a vacuum is maintained in the channels leading to the mould surface of a mould half at least during the part of the cooling period in which the essentially solidified information support shrinks.

Description

Λ 6 92 1 b 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明(l) 本發明_於—絲㈣料利範圍第 1項所定義之 1出成形片«料_之方法H種實減方法之裝 置。 在製造片較贼_,在市場上其是以Λ 6 92 1 b Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (l) The present invention _ Yu-Silk ㈣ material profit scope defined in item 1 of a forming sheet «material_ method H Device for a subtraction method. It ’s a thief in making films, it ’s in the market

CD 或 DVD 、稱存在’是利㈣麵在資料載_其中—面打印 =的凹槽(凹孔)或細槽或是打印出凹槽與細槽,其包含 資料在$塾襯面,又稱印模,其通常是由含有錄電鐘 層《凹孔幾何所構成’安置在射出成形模子的兩個片狀模 面中的一個模面上。 〃,此在-製造完成之資料紐之資料面上含有有凹孔 區及播凹孔區,則者是陷孔後者的平面。因為在雷射光掃 到一個凹孔變成平面的變化時才可以讀到資料,所以要想 精確感測資料載體的資料面時,重要的是,凹孔的侧壁一 定要猜確成形,而在脫模過程中尤其不能被傷及。 、塾觀面f的凹孔幾何會咬人職料載體的資料面中, 而增加後者脫模的困難β此外,資料載體的材料受冷收縮 時會單方面的在咬合中生成應力也是不好的。 例如由DE 38 39 536 ΑΙ中可知,為了方便脫模在模 /、打開時,在貪料載體的一面或兩面將壓縮空氣灌入到模 面與資料»©之間。這樣很可齡gj為黏著狀況的不同 而在資料載體的兩個面上不同的區域中發生不均勾的脱 離’而在未脫離的區域產生過大的咬合應力。而在這些存 餘區域脫模時,可能引起凹孔側壁全部或部份受到損壞, 其便會在資料載體上產生所謂的雲朵的訊號。同樣的道理, 本紙張尺度剌中®國家標準(CNS)A4規格⑵0 X 297公釐) -4- ---------裝·-------訂--I I -----繞, (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 五、發明說明(2.) 凹孔侧壁受損亦會降低資料載體的資料品質β 因此本發明之任務為防止資料載體中凹孔的侧壁在脫 模過程中受到損傷。 此任務將根據申請專利範園第丨項所述之方法來解 決,而附屬之申請專利範圍則是本發明的有利實施方式。 本發明係立基於以下的認知,那就是在開始冷卻時就 在模面施加恰當低壓’以確保資料載體在因冷卻而收縮時, 資料載體之圍起模内空間之兩面模面中會是在沒有施加低 塵的一面先行脫模。 在利的是將設有墊襯面的模面施加低壓,當材料在冷 卻收縮時,在施加低壓邊的另一邊注入整縮空氣更能有助 於那一邊的完全脫模。 本發明的有利實施方法是使資料載體的一面,較佳為 使其之鏡面脫模,而其資料面藉由導入低壓而固定不動, 這時在資料載體的邊緣區域上根據在模面墊襯面施加低壓 的比例施以恰當的力而脫模,則可得到一可調整之步進之 分離線。這樣一來,就可確保沒有任何部份的面會在不受 控制的情況下進行脫模。 有利的是設置模環扣住片狀資料載體的外圍區域,而 以模環來對資料載體施力,以利後者能在沿一個環形線上 發生均勻的脫模,而這個環形線徑向的向内移動直到資料 載體完全脫模為止。 有利的是將本發明之方法應用在製造一邊是鏡面而另 一邊是資料面之片狀資料載體上。低壓最好是施加在資科 * 297公釐) -------------裝--------訂---------镍 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 4 6 92 1 Β Α7 ____________Β7__ 五、發明說明(3-) 面上。 本發明之方法自然也可以應用在製造雙邊都是資料面 的片狀資料載體上。此類資料載體可以例如是由兩張鏡面 向外的片狀的資料載體黏貼在一起而製成,也就是說一片 狀資料載體共有四個内置之資料面。原則上也可以使四個 以上的資料面做在一片狀資料載體之内。 本發明之實施形式可以下列圖式來作說明。圖式為: 圖一顯示一封閉之射出成形模的部份圖,其在一圖式中 顯示射出之資料載體在冷卻後及在冷卻前的形狀, 圖二顯示一封閉之’填滿待熔物質之射出成形模的部份 圖, 圖三顯示圖二之射出成形模在部份開啟的位置,包含一 個從模面剛脫離之片狀資料載體, 圖四顯示圖三之具有正在脫模之資料載體之射出成形 模,以及 圖五顯示一具有已完成射出之及部份成形之資料載體之 射出成形模。 在圖一中的部份斷面圖中顯示出一射出成形機之射出 模2的第一半邊模!。此半邊模丨之模面3是做成拋光面 的5是為鏡面。半邊模1設置在另一半邊模4的對面,後 者擁有一由電鍍層製成的墊襯面5,其表面則是依凹孔幾 1成形。半邊模4是藉套筒組件6及7來定位,而在該套 洵組件間又設有一管道8以聯結低壓機组(未圖示出)β由 兩個半邊模1及4所形成的模内空間9中則填滿了資料載 本紙張尺度適用中國國家標準(CNS)A4規格⑽χ 297公爱) --------I-------I----訂-----I---線 (請先閱讀背面之注意事項再填寫本頁) 46 921 6 Α7 Β7 經濟部智慧財產局員工消費合作社印紫 五、發明說明(4·) 體10。 在圖一中所示之資料載體10的狀態是,在下方的熔化 物質尚未冷卻’而還沒變硬的資料載體10的熔化物質則搭 靠在光如鏡面的模面3上。圖一的上方區域的資料載體 的熔化物質則已經相當程度的冷卻了,也變硬了,而由於 溶化物質的冷縮效應S ’其已經脫離了模面3 〇資料載體 的脫離面在這裡稱為鏡面11。資料載體10的另外一面就 是資料面12 ’在其上受到塾觀面5作為負模的作用印刻出 了凹孔幾何。凹處,也就是凹孔13被晝得特別大,以利能 在圖式中被看得更清楚。資料面12上沒有凹孔13的表面 區域稱為平面Η。當使用雷射光(未圖示出)來感測一個製 造完成之資料載體10之資料面12時,由凹孔13轉換成平 面14時’ 一個資料單元就得以被識別。為了要使這項轉換 能夠被雷射光清晰的辨識,重要的是凹孔13的側面15能 夠被精密的成形出來,並且在後來脫模過程中也不會被塾 襯面5所傷及。 圖二至圖五是以射出成形模的半邊的部份剖面圖來說 明片狀資料載體10在脫模過程中的經過情形。 圖二顯示一封閉中的射出'成形模,其模内空間是由第 一半邊模1、第爾半邊模4及模環16所包圍出來。模環16 是以可推移的方式設置在第一半邊模1内。模内空間一直 包含到鑄入管17中都是被熔化物質所填滿。在鑄入管π 與第一半邊模1之間設有一壓縮空氣管道18。第二半邊模 4上裝有墊襯面5(印模),且其設置在套筒組件6及7上面, 麥紙浪尺度遇用τ國國家標準(CNS)A4規格(21ϋ χ挪公爱> -7- - - ----( ----I I I I ^---------^ (請先閱讀背面之注意事項再填寫本頁) A7 B7 五、發明說明(5·) 而在跡錢組件之間又設❹支騎低錢組之管道 8,此外’在套肢件7中還設有—錄出桿2〇。 在圖三中的狀況是第一半邊模i已經後退,而模環16 乃停駐在第爾半邊模4上,而以其後緣1δ縣著由溶化物 質硬化而成的資料載體1〇的外圍β在圖三中,半邊模!後 退之如,資料載體10已經先自模面3脫離了,其中資料載 體10的資料面I2藉由管道8中注人之錄而吸附在塾觀 面5上,另一方面資料載體1〇受熔化物質體積收縮,加上 壓縮空氣管遒18送來的壓縮空氣在模面3與資料載體1〇 之間的作用’造成資料載體10脫離模面3。 到圖四中的狀況時,壓縮空氣管道18中的壓縮空氣已 停止輸入,且模環16也已後退’但此時低壓仍然維持作用。 由於已變硬之片狀資料載體10的外圍是被後緣19所環繞 住’因此其會由外而内的自墊襯面5脫離。該低壓會—直 維持作用到資料載體1〇完全從墊襯面5脫離為止。 到圖五中的狀況時,資料載體10已經完全脫離第二半 邊模4,且其可以在切除中央鑄入孔中的轉部後(未圖示出) 由射出模中取出。 --------------裝--------訂--------- ί請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印盤 ‘磁尺度顧t ® g家縣(CNS)A4規格⑵〇 ^ 297公釐) 經濟部智慧財彦局員工消費合作社印製 4 6 92 1 6 五、發明說明(6.) 1 半邊模 2 射出模 3 模面 4 半邊模 5 蟄襯面 6 套筒組件 7 套筒組件 8 管道 9 模内空間 10資料載體 11鏡面 12資料面 13 凹孔 14平面 15侧面 16模環 17鋳入管 18壓縮空氣管道 19後緣 20推出桿 A7 C/ B7 元件符號說明 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4规格(210 X 297公蹵) -8-1 -CD or DVD, said to exist 'is the surface of the surface containing the grooves (recessed holes) or fine grooves printed on the data, or printed grooves and grooves, which contain data on the $ 塾 lining surface, and It is called a stamp, which is usually composed of a recording clock layer "concave hole geometry" and is placed on one of the two sheet die surfaces of the injection molding mold. Alas, there are recessed hole areas and recessed hole areas on the data surface of the -manufactured data button. The latter is the plane of the latter. Because the data can be read only when the laser light scans a concave hole into a flat surface, it is important to accurately sense the side wall of the concave hole when the data surface of the data carrier is accurately sensed. In particular, it cannot be injured during demolding. The geometry of the recessed holes on the plane f will bite into the data plane of the material carrier, which increases the difficulty of demoulding the latter β. In addition, the material of the data carrier will unilaterally generate stress during occlusion when it is cold-shrinked. of. For example, it is known from DE 38 39 536 A1 that, for ease of demolding, when the mold is opened, the compressed air is poured between the mold surface and the material »© on one or both sides of the carrier. In this way, the age gj is different due to different adhesion conditions, and uneven disengagement occurs in different areas on the two sides of the data carrier, and excessive occlusal stress is generated in the undetached area. When the remaining areas are demolded, the sidewalls of the recesses may be damaged in whole or in part, which will generate so-called cloud signals on the data carrier. For the same reason, this paper standard (Chinese Standard (CNS) A4 Specification (0 X 297 mm)) -4- --------- Installation · ------- Order --II- --- Wound, (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (2.) Damage to the side wall of the recessed hole will also reduce the data quality of the data carrier β Therefore, the task of the present invention is to prevent the side wall of the recessed hole in the data carrier from being damaged during the demolding process. This task will be solved according to the method described in item 丨 of the patent application park, and the scope of the attached patent application is an advantageous embodiment of the present invention. The present invention is based on the recognition that the appropriate low pressure is applied to the mold surface at the beginning of cooling to ensure that when the data carrier contracts due to cooling, the two mold surfaces of the data carrier surrounding the mold space will be in the The side where the low dust is not applied is demolded first. It is advantageous to apply a low pressure to the die surface provided with the padding surface. When the material shrinks under cooling, injecting condensed air on the other side of the low pressure side can help complete the demolding of that side. An advantageous implementation method of the present invention is to demold one side of the data carrier, preferably its mirror surface, and the data side is fixed by introducing a low pressure. At this time, the edge area of the data carrier is based on the pad surface of the mold surface. Applying the proportion of low pressure and applying the appropriate force to demould, a stepping line with adjustable step can be obtained. This ensures that no part of the surface is demolded uncontrolled. It is advantageous to set a mold ring to fasten the peripheral area of the sheet-shaped data carrier, and use the mold ring to apply force to the data carrier, so that the latter can be uniformly demolded along a circular line, and the circular line is directed radially Move inside until the data carrier is completely demolded. It is advantageous to apply the method of the present invention to the manufacture of a sheet-shaped data carrier having a mirror surface on one side and a data surface on the other. Low pressure is best applied to the asset department * 297 mm) --------------------------------- Order ----- Nickel (Please read first Note on the back, please fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 6 92 1 Β Α7 ____________ Β7__ 5. The description of the invention (3-). The method of the present invention can naturally also be applied to the manufacture of a sheet-shaped data carrier having both data sides. Such a data carrier can be made, for example, by sticking two pieces of mirror-shaped data carriers outwards together, that is, a sheet-shaped data carrier has four built-in data faces. In principle, it is also possible to make more than four data planes in one piece of data carrier. The embodiments of the present invention can be described by the following drawings. The diagram is: Figure 1 shows a partial view of a closed injection molding die, which shows the shape of the injected data carrier after cooling and before cooling in a diagram, Figure 2 shows a closed 'filled to be melted' Partial view of the material injection molding die, Figure 3 shows the injection molding die of Figure 2 in a partially opened position, which contains a sheet-shaped data carrier just detached from the mold surface, and Figure 4 shows that An injection molding die for a data carrier, and FIG. 5 shows an injection molding die with a completed and partially formed data carrier. The first half mold of the injection mold 2 of an injection molding machine is shown in a partial sectional view in FIG. 1! . The mold surface 3 of this half-edge mold is a polished surface and 5 is a mirror surface. The half mold 1 is disposed opposite to the other half mold 4, and the latter has a pad surface 5 made of an electroplated layer, and its surface is formed according to the recess hole table 1. The half mold 4 is positioned by the sleeve assemblies 6 and 7, and a pipe 8 is provided between the sleeve assemblies to connect the low-pressure unit (not shown). The mold formed by the two half molds 1 and 4 The inner space 9 is filled with data. The paper size is applicable to the Chinese National Standard (CNS) A4 specification ⑽χ 297 public love. -------- I ------- I ---- Order- ---- I --- line (please read the notes on the back before filling this page) 46 921 6 Α7 Β7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The state of the data carrier 10 shown in Fig. 1 is that the molten substance of the data carrier 10 which has not cooled down yet has hardened, but rests on the mold surface 3 which is light like a mirror. The melting material of the data carrier in the upper area of Figure 1 has been cooled to a considerable extent and also hardened, and due to the cold shrinkage effect S of the melted material, it has separated from the mold surface. The separation surface of the data carrier is referred to here为 Mirror surface 11. The other side of the data carrier 10 is the data plane 12 ', on which the viewing surface 5 acts as a negative mold, and the recessed hole geometry is imprinted. The recesses, that is, the recesses 13 are particularly large in the day, so that they can be seen more clearly in the diagram. The surface area of the data surface 12 without the recessed holes 13 is referred to as a flat surface. When laser light (not shown) is used to sense the data surface 12 of a completed data carrier 10, when a cavity 13 is converted into a flat surface 14, a data unit is identified. In order for this conversion to be clearly identified by the laser light, it is important that the side surface 15 of the recessed hole 13 can be precisely formed, and it will not be damaged by the lining surface 5 during the subsequent demolding process. Figures 2 to 5 are partial cross-sectional views of the half of the injection molding die to illustrate the passage of the sheet-shaped data carrier 10 during the demolding process. Fig. 2 shows an injection molding mold in a closed state, and the inner space of the injection mold is surrounded by the first half mold 1, the first mold half 4 and the mold ring 16. The mold ring 16 is disposed in the first half mold 1 in a movable manner. The space in the mold, which is contained up to the casting tube 17, is filled with molten material. A compressed air pipe 18 is provided between the casting pipe π and the first half mold 1. The second half mold 4 is provided with a pad surface 5 (imprint), and it is arranged on the sleeve components 6 and 7. The wheat paper scale meets the national standard (CNS) A4 specification (21ϋ > -7------- (---- IIII ^ --------- ^ (Please read the notes on the back before filling out this page) A7 B7 V. Description of the invention (5 · ) There is also a pipe 8 for supporting the low-money group between the track-money components. In addition, there is also a set-out lever 20 in the limb piece 7. The situation in Figure 3 is the first half-mould. i has retreated, and the die ring 16 is stopped on the dier half die 4, and the trailing edge 1δ is the periphery β of the data carrier 10 hardened by the dissolved material. In Figure 3, the half die! For example, the data carrier 10 has been detached from the mold surface 3, in which the data surface I2 of the data carrier 10 is adsorbed on the observation surface 5 by the injection of the person in the pipe 8, and on the other hand, the data carrier 10 is affected by the molten material Volume shrinkage, coupled with the role of compressed air sent from compressed air tube 遒 18 between die surface 3 and data carrier 10, causes data carrier 10 to detach from die surface 3. When the situation shown in Figure 4, the compressed air tube The compressed air in 18 has stopped being input, and the die ring 16 has also retreated 'but the low pressure is still maintained at this time. Since the periphery of the hardened sheet-shaped data carrier 10 is surrounded by the trailing edge 19', it will be affected by The outer side is detached from the pad surface 5. The low pressure will be maintained until the data carrier 10 is completely detached from the pad surface 5. By the situation in FIG. 5, the data carrier 10 has completely separated from the second half mold. 4, and it can be taken out from the injection mold after cutting the turning part in the central casting hole (not shown). -Order --------- ί Please read the precautions on the back before filling out this page) Employees' Cooperative Cooperative Printing Plate of the Intellectual Property Bureau of the Ministry of Economic Affairs, “Magnetic Scale Gut® gjia County (CNS) A4 Specification” 〇 ^ 297 mm) Printed by the Consumer Finance Cooperative of the Wisdom Finance and Economics Bureau of the Ministry of Economic Affairs 4 6 92 1 6 V. Description of the invention (6.) 1 Half mold 2 Injection mold 3 Mold surface 4 Half mold 5 蛰 Lining surface 6 Sleeve assembly 7 Sleeve assembly 8 Pipe 9 In-mold space 10 Data carrier 11 Mirror 12 Data surface 13 Recessed hole 14 Plane 15 Side 16 Die ring 17 Piping tube 18 Compressed air pipe 19 Trailing edge 20 push-out lever A7 C / B7 component symbol description (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 (210 X 297 cm) -8-1-

Claims (1)

4 6 92 1 b4 6 92 1 b 申請專利範圍 差89100561號專利案申請春利範岡條正太 經濟部智慧射產局員工消費合作社印製 1·種射出成形片狀資料載體之方法,該片狀資料載體是 具有-為鏡面及-為資料面,或是其為二㈣為資料面 之片狀資料載體’其係利用一射出成形機將溶化物質射 入到由兩個半邊模組成的射出模的模内空間,在射出之 後的一段冷卻時間之後將射出模打開,而在自模面上分 離有鏡面與資料面或有兩個資料面的資料載體時,利用 通過半邊模體的管道將壓縮空氣引至模面,其特徵為, 至少在一部份的冷卻時間内,也就是當已經大致硬化了 的資料載體(10)在因冷卻而收縮時,在半邊模(4)中 的多支管道(8)内維持低壓狀態。 2.根據申請專利範圍第1項所述之方法,其特徵為,在資 料載體(10)受低壓作用面的另外一邊的面的全面上施 加低壓,以使資料载體(丨〇)自半邊模(19)上的模面 (3)上脫離》 3·根據申請專利範圍第1項所述之方法,其特徵為,在具 有鏡面及資料面之資料載體(1〇)上,將低壓持續作用 在資料載體(10)之資料面(12)的模面(墊襯面(5)) 上。 4·根據申請專利範圍第丨項所述之方法,其特徵為,片狀 資科載體(10)的外圍是受一個可以在射出模打開的運 動方向上運動的模環(16)所夾持,其可以使資料載體 (1〇)在低壓作用面的另一邊的面完全脫離以後,其之 X 297公釐) -9- ------------- . -------訂-------I--線 (請先閱讀背面之注意事項再填寫本頁) 8888 ABCD 469216 六、申請專利範圍 受低壓作用面會由外而内徑向的逐步脫離。 5. 根據申請專利範圍第1項所述之方法,其特徵為,至少 有在半邊模(4)中通往模面的多支管道(8)是聯結到 低壓機组。 6. 根據申請專利範圍第1項所述之方法,其特徵為,多支 管道(8)是在印製資料載體(10)的資料面(12)的墊 襯面(5)中呈放射狀設置。 7. 根據申請專利範圍第1項所述之方法,其特徵為,在模 内空間的外圍區域,是由一個可以在半邊模(1)内作移 動運動的模環(16)來作邊界的,其負貴資料載體(10) 的後緣(19)的成型。 -------------裝.-------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作杜印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -10-The scope of the patent application is 89100561, and the patent application for Chunli Fangangjo, the Ministry of Economic Affairs, the Intellectual Property Bureau of the Ministry of Economic Affairs, and the employee consumer cooperative prints a type of injection-molded sheet-shaped data carrier. The sheet-shaped data carrier has-for mirror surfaces and-for The data plane, or a sheet-shaped data carrier with two data planes, is used to inject a molten substance into the mold space of an injection mold composed of two half-edge molds using an injection molding machine. After a period of cooling time, the injection mold is opened, and when the mirror surface and the data surface or the data carrier with two data surfaces are separated from the mold surface, the compressed air is guided to the mold surface through a pipe passing through the half mold body. At least for a part of the cooling time, that is, when the hardened data carrier (10) shrinks due to cooling, the low pressure state is maintained in the multiple pipes (8) in the half-mould (4). 2. The method according to item 1 of the scope of patent application, characterized in that a low pressure is applied to the entire surface of the other side of the data carrier (10) subjected to the low pressure, so that the data carrier (丨 〇) is halfway Disengagement from the die surface (3) on the die (19) "3. According to the method described in item 1 of the scope of the patent application, characterized in that the low pressure is continuously maintained on the data carrier (10) having a mirror surface and a data surface Acts on the die surface (pad surface (5)) of the data surface (12) of the data carrier (10). 4. The method according to item 丨 of the patent application scope, characterized in that the periphery of the sheet-shaped asset carrier (10) is held by a mold ring (16) that can move in the direction of movement of the injection mold opening , Which can make the data carrier (10) completely detach from the other side of the low-pressure active surface, its X 297 mm) -9- -------------. --- ---- Order ------- I--line (please read the precautions on the back before filling this page) 8888 ABCD 469216 6. The scope of the patent application will be gradually reduced from the outside to the inside in the radial direction. Break away. 5. The method according to item 1 of the scope of patent application, characterized in that at least a plurality of pipes (8) leading to the mold surface in the half-side mold (4) are connected to the low-pressure unit. 6. The method according to item 1 of the scope of patent application, characterized in that the plurality of pipes (8) are radial in the pad surface (5) of the data surface (12) of the printed data carrier (10) Settings. 7. The method according to item 1 of the scope of patent application, characterized in that the peripheral area of the mold space is bounded by a mold ring (16) that can move in the half mold (1). , The formation of the trailing edge (19) of the expensive data carrier (10). ------------- Install .------- Order --------- Line (Please read the precautions on the back before filling this page) Intellectual Property of the Ministry of Economic Affairs Bureau's consumer cooperation Du printed paper size applicable to China National Standard (CNS) A4 (210 X 297 mm) -10-
TW89100561A 1998-12-05 2000-01-14 Method for injection-molding disk-shaped information supports TW469216B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998156218 DE19856218A1 (en) 1998-12-05 1998-12-05 Process for the injection molding of disc-shaped information carriers

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TW469216B true TW469216B (en) 2001-12-21

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Publication number Priority date Publication date Assignee Title
US4449916A (en) * 1980-11-20 1984-05-22 Matsushita Electric Industrial Co., Ltd. Device for manufacturing information recording mediums
JPH0671739B2 (en) * 1987-12-19 1994-09-14 パイオニア株式会社 Information recording disk substrate injection molding machine
JPH0278036A (en) * 1988-09-13 1990-03-19 Ricoh Co Ltd Optical disk
JPH0493208A (en) * 1990-08-10 1992-03-26 Canon Inc Mold release method of flat molded product
US5244606A (en) * 1992-06-08 1993-09-14 Galic Maus Ventures Faster cycling method and apparatus for optical disk removal from injection mold
JPH07156212A (en) * 1993-12-10 1995-06-20 Ricoh Co Ltd Mold and molding method
JP3310823B2 (en) * 1995-07-05 2002-08-05 松下電器産業株式会社 Foam plastic volume reduction device
JP3387727B2 (en) * 1996-04-11 2003-03-17 株式会社名機製作所 Disk forming die and disk forming method

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