JPS5933108A - Method of releasing synthetic resin molded item - Google Patents
Method of releasing synthetic resin molded itemInfo
- Publication number
- JPS5933108A JPS5933108A JP14436782A JP14436782A JPS5933108A JP S5933108 A JPS5933108 A JP S5933108A JP 14436782 A JP14436782 A JP 14436782A JP 14436782 A JP14436782 A JP 14436782A JP S5933108 A JPS5933108 A JP S5933108A
- Authority
- JP
- Japan
- Prior art keywords
- compressed air
- mold
- liner
- bowl
- 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.)
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
- B29C33/46—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles using fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は熱硬化性樹脂に或ば、熱可塑性樹脂成形品の
離型方法の改良に関する。 ・。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to thermosetting resins, and more particularly, to an improvement in a mold release method for thermoplastic resin molded articles.・.
−従来、おわんやコツプの様に底面の一部に通称ナンダ
ニガ、レトと呼ばれる逆テーパー□部を有する
巳、成形品は鯖型で製作されていた６−−■・□
、１： じかし４．・・割′型テ製
作する□と金型の合・わせ伺にバ □：−リができく−
どｉ除、夫１作業が必、、要、であ、づ傭□・。
。-Conventionally, like a bowl or cup, a part of the bottom has a reverse tapered □ part commonly known as Nandaniga or Reto.
Snake, the molded product was made in the shape of a mackerel 6--■・□
, 1: Direct 4.・・Make the split mold □ and the mold together.
Except, my husband needs to do some work.
.
−前述１６ レフ’、ν・取□：′□６は手作業で行う
ので大（へ）１．ｔ 、 、、、１しで、あ、や
、６よ；、・１１１ｇ’ ｌ ：；Ｉｌ、ミ”ｉ”ｔＫ
ＩＭＩ’−ｑ”、４ 、あ、、９、・、ッ’４’：：
：１．０．．．：’、・１．１．、・、・１．・、、４
．．４．２ｇ、！、ワ、、ｉ。- Previous 16 ref', ν・tori□:'□6 is done by hand, so it is large (to) 1. t , ,,, 1, ah, ya, 6;, ・111g'l:;
IMI'-q", 4, ah, 9,...'4'::
:1.0. ．． ．． :',・1.1. ,・・・1.・、、４
．． ．． 4.2g! ,wa,,i.
、１．：、シ・１す、年、 −’：１Ｉ４１ｆは
１似、・：出：晟形等牽し、成形索子 ■後
に鎮１卿曹ｌｕｌ痺１岬、叫１ら・古血等で押、して抜
型より離 １型さｆ′４ｔｈ′ｌ！１Ｊｉ
（、行わ□れる様にな・つてきた（実開 １
：□、０．＋ １９−”？ ”’ｌ ＠）。、−：とこ
ろが１．この方法はパリの出ない□成形品を製作できる
反面、成形直後の未硬化状態の成形品をつき棒で押して
無理に離型させる為、成；し品底部の破損や変形が、□
生じやすく、又、つき棒による押し跡が残る等問題点が
、あった。, 1. :, shi・1su, year, -':1I41f is similar to 1,・:out: Seikata etc., molded rope ■Later, Chin 1 Lord Cao lul para 1 Misaki, shout 1 et al., old blood etc. , and then remove it from the cutting die.1 die f'4th'l! 1 Ji
(, it has become like being done □ (actual development 1)
:□, 0. + 19-”?”’l @). , -: However, 1. Although this method can produce a molded product without any flakes, since the molded product in an uncured state immediately after molding is pushed with a push rod to forcefully release the mold, damage or deformation of the bottom of the finished product may occur.
There were other problems, such as easily occurring and leaving marks from the push rod.
そこで、発明者Ｇ才これ等の欠点を除去する為に ：。Therefore, in order to eliminate these drawbacks, inventor G.
特願昭３２７ｇ０Ｏ４ｌＩ挙を提案した。A special patent application was proposed in 1983.
前記□発明は゛前述ｉ羨点をすべて解決でき１及力セ′
：□抜型と定盤間に装置する：リング状の弾性材がすぐ
に損傷してしまう欠坐があ、ヤ、ことが判明した。
−この発明は、」二連９抜型今侠用しておわんやコツ
プの様な逆テーパ一部を備えた成形品を製作する場合：
□、盛形品の破損は勿論のこと、変形やつき。The □ invention described above can solve all of the above-mentioned disadvantages.
:□Installation between the cutting die and the surface plate: It was discovered that there was a chipping that caused the ring-shaped elastic material to be easily damaged.
- This invention can be used to produce a molded product with a reverse taper part, such as a bowl or cup, using the double 9-cutting die:
□, the molded product may not only be damaged but also deformed.
俸の跡が残らず、無理なく、１．、、シかも、能率よく
離型でき１．リング状の弾性材が、歪要で、従って、弾
性材の交換が不要な連続的な：稼働可能な離型方法を提
供するものである。 、：・□
以下、一実施例を図面につき詳述すると、／は一例とし
ておわんを示し、２は逆テーパー状の成形品の底脚部を
示している。1. No trace of salary left and without any difficulty. ,, It may be possible to release the mold efficiently.1. The ring-shaped elastic material provides a continuous demolding method that does not require strain and therefore does not require replacement of the elastic material. , :・□ Hereinafter, one embodiment will be described in detail with reference to the drawings. / indicates a bowl as an example, and 2 indicates a bottom leg of a reversely tapered molded product.
この榴の成形品は第２図に示す様な金型３で圧制成形、
時には射出成形される。This molded product is pressure molded using a mold 3 as shown in Figure 2.
Sometimes injection molded.
即ち、金型３は抜型グと上下型Ｓ、乙及び定盤７とによ
って構成されている。That is, the mold 3 is composed of a cutting die, upper and lower dies S, O, and a surface plate 7.
抜型ゲの下端中央部には突部ざを下段し、定盤、
・７の、、中央部」；方には前記突部に対応する四部７
が設けられ、突部ｇと四部り間にはドーナツ状の間隙ン
Ｏが形成されている。There is a protrusion at the center of the lower end of the cutting die, and a surface plate,
・On the central part of 7, there are four parts 7 corresponding to the protrusions.
is provided, and a donut-shaped gap O is formed between the protrusion g and the four parts.
又、前記定盤には圧縮空気送入孔／／が殺けら、れ、該
圧縮空気送入孔の先端１ま定盤プの表面と抜型グの突部
ざ下面及び下型乙との間の間隙１０に開口している。Further, the surface plate has a compressed air inlet hole, and the tip 1 of the compressed air inlet hole is between the surface of the surface plate and the bottom surface of the protrusion of the cutting die and the lower die. It opens into the gap 10.
７．２は金型３に設けられたキャビティ〜／３は抜型グ
を定盤７に固定させる為の堡止具１．ｌ ／、、、 ？
は抜型ゲの下方に周設した係止具／３の先端が係合する
横溝である。・□ 、
上述の金型３を使用して成形品、を製作する：には定盤
７」二に装置された抜型グと下型乙のキャビティ／、７
に熱硬化性樹脂、或は、熱可塑性樹脂を適量入れて上型
Ｓをセットし、この状態で加熱と同時に加圧する。7.2 is a cavity provided in the mold 3~/3 is a barrier for fixing the cutting die to the surface plate 71. l/,,,?
is a horizontal groove into which the tip of the locking tool /3 provided around the lower part of the cutting die ridge engages.・□ , Manufacture a molded product using the mold 3 described above: The cavity of the cutting mold G and the lower mold B installed on the surface plate 7'' is 7.
An appropriate amount of thermosetting resin or thermoplastic resin is put into the mold, an upper mold S is set therein, and in this state, heating and pressure are applied at the same time.
その際、第２図に示す如く抜型ｌは全体的に下方に押圧
され、係止具／３の先端は抜型ｌの横溝／１１辺に密接
状態になると共に、間隙１０は密閉状態となる。At this time, as shown in FIG. 2, the entire cutting die 1 is pressed downward, the tip of the locking tool 3 comes into close contact with the lateral groove 11 side of the cutting die 1, and the gap 10 is sealed.
成形完了直後に抑圧状態を解き１．上型Ｓを抜型１
グ及び下、型乙がら離型させ、次に〜定盤７
に設けた圧縮空気送入孔／／に圧縮空気を圧送する。Immediately after molding is completed, the suppressed state is released.1. Remove upper die S from die 1
7. Release the mold from the bottom, and then ~ surface plate 7.
Compressed air is fed under pressure to the compressed air inlet hole provided in the.
そうすると、定盤７の表面、七抜型・ｌの下面及び下型
乙の間隙１０に圧縮空気：が供給され、圧縮空気の押圧
によって横溝／グの下辺が係止具／３の、″鞘°″を棺
７４′□“゛”１げ６謁３１１参照）。 ・・
、：。Then, compressed air is supplied to the surface of the surface plate 7, the lower surface of the cutting die L, and the gap 10 of the lower die B, and the pressure of the compressed air causes the lower side of the horizontal groove/g to ``Coffin 74'□``゛''1ge6 Audience 311).・・・
, :.
その際、図面から明らがな如く抜型１１１と下型乙の逆
テーパー状のおわんの底脚部を成形する金型の接合面は
ぞれてそこに隙間１５が形成される。At this time, as is not clear from the drawings, the joining surfaces of the cutting die 111 and the lower mold B, which forms the bottom leg of the inverted tapered bowl, separate, and a gap 15 is formed there.
従って、抜型ｌを押上げた圧縮空気は上記隙間／３゛を
：通・つて下型乙とおわんの底面間、に充満し、、次第
におわんの底部を押圧する。。Therefore, the compressed air that has pushed up the cutting die L passes through the above-mentioned gap /3゜, fills the space between the lower die B and the bottom of the bowl, and gradually presses the bottom of the bowl. .
その時、おわんの底脚部２外周面は抜型≠の底：
脚部成形角部に係止状態となっているが、おわ
んが未硬化状態である為と、抜型ｌと下型６間に隊ｎ４
ｉ／、！；が形成された為、圧縮“空気でお・わんの底
面を押圧すると、おわんの底部下端が隙間／Ｓの方：□
に容易に逃げ、離型が円滑に行われるばか
りが、おわんに無理な力が作用しないので、変形する等
の事態が全く生じない。At that time, the outer circumferential surface of the bottom leg 2 of the bowl is the bottom of the cutting die ≠:
It is locked to the corner of the leg molding, but this is because the bowl is not yet cured, and there is a gap between the cutting die L and the lower die 6.
i/,! ; was formed, so when you press the bottom of the bowl with compressed air, the lower end of the bottom of the bowl will be in the gap/S: □
Not only does it release easily and release the mold smoothly, but since no excessive force is applied to the bowl, no deformation or the like occurs at all.
この発明の離型方法は上述の様なものであってこの方法
によると、おわんやコツプの如く底部に逆テーパー状の
底脚部を有する成形品を圧縮空気で無理なく円滑に成形
でき、従来の如く成形品の底部の破損や変形翫つき棒の
跡が全く生じない。・又、リング状の弾性材が不要であ
るから一弾性材の交換の為に運転を中断する必要がなく
、連続して稼働できる。The mold release method of the present invention is as described above, and according to this method, molded products having an inversely tapered bottom leg, such as a bowl or a cup, can be molded easily and smoothly using compressed air, and can be easily molded using compressed air. There is no damage to the bottom of the molded product or any traces of deformed rods.・Also, since a ring-shaped elastic member is not required, there is no need to interrupt operation to replace one elastic member, and continuous operation is possible.
なお、圧縮空気の送入はタイマーにより成形作業と連動
する様にすれば成形が能率よく行える。Note that molding can be carried out efficiently if the supply of compressed air is linked to the molding operation using a timer.
又、上記実施例ではおわんやコツプについて説明したが
、・逆テーパー状の部分を有する機械部品等も同様にし
て成形できる。Further, in the above embodiment, a bowl or a cup was explained, but machine parts having a reversely tapered portion can also be molded in the same manner.
第７図は成形品の一例としておわんを示す斜面
１図、第２図は金型の中央部縦断面図、第３図は同平
面図、第を図は離型時の状態を示す中央部給断面図であ
る。
／・・・・成形品、２・・・・・・成形品の底脚部、３
・・・・・・金型、グ・・・・抜型、５・・・・・・上
型、乙・・・・下型、７・・・・・定盤、ｇ・・・・・
突部、り・・・・・・凹部、１０・・・ ′ □・
・間隙、／／・・・圧縮空気送入孔、／２・・・・・・
ギャビテイ、／３・・・・・係止具、／ｌｌ・・・・・
・横溝、１５・・・・・隙間。Figure 7 shows a slope showing a bowl as an example of a molded product.
1 and 2 are longitudinal cross-sectional views of the center of the mold, FIG. 3 is a plan view thereof, and FIG. /... Molded product, 2... Bottom leg of the molded product, 3
...Mold, G...Cutting die, 5...Upper die, Otsu...Lower die, 7...Surface plate, G...
Protrusion, ri... recess, 10...' □・
・Gap, //...compressed air inlet, /2...
Gabity, /3...Locking tool, /ll...
・Horizontal groove, 15...Gap.
Claims (1)
形する金型３はζ・抜型←：と：上下型ｊｊ□１チ及び
定盤りとから構成され、前記抜型にＧシ突部ｋを下段し
、定盤７には前記朶蔀に対応す、弗凹部り１□・１
−：・ １ を形成して両者間に下＝ナラ状り間隙／ρを形、串。 ／ｅｉ！ｌ！７゜。９８１１．９□、、６ｏ１．、τ：
’ｌ’７：噸・■させ、又、前記間隙に開口する圧 １１１に ：：７：：ττ：二÷：：二７１：＝）１．：’：：１
．り・・１１・、・、、□１．。 をぞらせて底脚部成形部間に隙間／・汐を生じさ１せこ
の隙間に未硬化状態の成形品底脚部が、逃げて・離型が
円滑に行える様にしたことを特徴とする合成樹脂成形品
の離型方法。 、・[Claims] A mold 3 for molding a synthetic resin molded product having an inverted tapered bottom leg is composed of a ζ cutting die ←: and: an upper and lower die jj□1 and a surface plate, The cutting die is provided with a G protrusion k at the bottom, and the surface plate 7 is provided with a recessed part 1□・1 corresponding to the above-mentioned lip.
−：・ 1 is formed and a hollow gap /ρ is formed between the two. /ei! l! 7°. 9811.9□,,6o1. , τ:
'l'7: 噸・■, and the pressure 111 opened in the gap::7::ττ:2÷::271:=)1. :'::1
．． ri・・１１・・・、□１． . A gap is created between the molded parts of the bottom leg, allowing the bottom leg of the uncured molded product to escape into this gap and release the mold smoothly. A method for releasing synthetic resin molded products. ,・
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14436782A JPS5933108A (en) | 1982-08-19 | 1982-08-19 | Method of releasing synthetic resin molded item |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14436782A JPS5933108A (en) | 1982-08-19 | 1982-08-19 | Method of releasing synthetic resin molded item |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5933108A true JPS5933108A (en) | 1984-02-22 |
| JPS6412207B2 JPS6412207B2 (en) | 1989-02-28 |
Family
ID=15360460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14436782A Granted JPS5933108A (en) | 1982-08-19 | 1982-08-19 | Method of releasing synthetic resin molded item |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5933108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030034847A (en) * | 2001-10-29 | 2003-05-09 | 엘지전선 주식회사 | Premolded sleeve mold for extra high voltage cable joint |
-
1982
- 1982-08-19 JP JP14436782A patent/JPS5933108A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030034847A (en) * | 2001-10-29 | 2003-05-09 | 엘지전선 주식회사 | Premolded sleeve mold for extra high voltage cable joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6412207B2 (en) | 1989-02-28 |
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