JPS5896528A - Blow molder - Google Patents
Blow molderInfo
- Publication number
- JPS5896528A JPS5896528A JP56194881A JP19488181A JPS5896528A JP S5896528 A JPS5896528 A JP S5896528A JP 56194881 A JP56194881 A JP 56194881A JP 19488181 A JP19488181 A JP 19488181A JP S5896528 A JPS5896528 A JP S5896528A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- flat
- parison
- mandrel
- shape
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06905—Using combined techniques for making the preform
- B29C49/0691—Using combined techniques for making the preform using sheet like material, e.g. sheet blow-moulding from joined sheets
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は偏平形状の製品を、歩留りを向上させて成形す
るためのプロー成形装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blow molding apparatus for molding flat products with improved yield.
近年、ソーラ温水器の集熱板やパレット等のような偏平
形状を有するグラスチックプロー成形品が多く見受けら
れるが、従来、この種成形品を成形する場合には、第１
図及び第２図に示す如きリングプランジャ式ヘッドのプ
ロー成形装置が使用されている。In recent years, many glass blow-molded products with flat shapes, such as heat collecting plates and pallets for solar water heaters, have been seen, but conventionally, when molding these types of products, the first
A blow molding apparatus having a ring plunger type head as shown in FIGS. 1 and 2 is used.
しかしながら、斯かる従来装置の場合、（１） 金型
（ａ）の上端をノズル（ｈ）の下端に近付けると、パリ
ソン（ｃ）がピンチされる前にノズｐｖ（ｂ）から切離
れ落下してしまうので、金型（α）の上端とノズル（勾
の下面との間隔Ｓはノズル（ｈｌの口径りのＡ以上あけ
る必要があった。However, in the case of such a conventional device, (1) when the upper end of the mold (a) is brought close to the lower end of the nozzle (h), the parison (c) separates from the nozzle PV (b) and falls before being pinched. Therefore, the distance S between the upper end of the mold (α) and the lower surface of the nozzle (inclination) had to be at least A of the diameter of the nozzle (hl).
（Ｉｆ） パリソン（ｃ）が大径の場合、ピンチした
後のパリソン（Ｃ）の下端が湾曲してしまうので、その
部分りを見込んで長くする必要があった。(If) If the parison (c) has a large diameter, the lower end of the parison (C) will be curved after being pinched, so it was necessary to make it longer to allow for that part.
（ＩＩＤ リングプランジャ一式ヘッドで偏平形状に
する場合周方向均一押出し速度で偏平形状を得るのが困
難であった。(IID When forming a flat shape with a ring plunger set head, it was difficult to obtain a flat shape at a uniform extrusion speed in the circumferential direction.
等の問題点を有しておシ、従って歩留りの向上、製品品
質の向−トが要望されてい友。Therefore, there is a demand for improvement in yield and product quality.
本発明は斯かる実情に鑑みなしたもので、中空偏平形状
としたパリソンヘッド本体の下端に同様な形状としたノ
ズルを取付けると共に、前記本体内に、幅方向に至る仕
切り板を適宜数配設して該仕切り板の外側部に溶融樹脂
の蓄積室を夫々平板状に形成し、該各蓄積室内に、蓄積
室内に流入蓄積した溶融樹脂を前記ノズル内へ送り込む
ための平板型プランジャを摺動可能に設け、且つ前記ノ
ズル内に、２枚のシート状パリソンを形成するためのマ
ンドレルを配設したことを特徴とし、更に前記ノズル内
に偏平環状パーリソンを形成するためのマンドレルを配
設したことを特徴とするものである。The present invention was developed in view of the above circumstances, and a nozzle having a similar shape is attached to the lower end of a parison head body having a hollow flat shape, and an appropriate number of partition plates extending in the width direction are arranged within the body. Accumulating chambers for molten resin are formed in the shape of a flat plate on the outside of the partition plate, and a flat plunger is slid into each accumulating chamber for feeding the molten resin that has flowed into and accumulated in the accumulating chamber into the nozzle. and a mandrel for forming two sheet-like parisons is disposed within the nozzle, and further a mandrel for forming a flat annular parison is disposed within the nozzle. It is characterized by:
以下、本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
第３図及び第４図に示す如く、中空の偏平形状に形成し
たパリソンヘッド本体（１）の下端に、該ヘッド本体（
１）の中空部と同様な開口を有するノズル（２）を取付
けると共に、ヘッド本体（１）の上方に設置したパリソ
ンコントロールシリンダ（３）に連結せるマンドレル軸
（４）の下端に、前記ノズル（２）内に配してノズル（
２）との間でシート状の通路（５〕を形成するようノズ
ル（２）の開口の幅方向（第５図における左右方向）に
至るマンドレル（６）全取付け、前記パリソンコントロ
ールシリンダ（３）の操作によりマンドレル軸（４）を
介しマンドレル（６）を昇降させて前記流−（５）下端
の出口スリット（７）の幅を調整し得るよう構成する。As shown in FIGS. 3 and 4, the head body (1) is attached to the lower end of the parison head body (1) formed into a hollow flat shape.
A nozzle (2) having the same opening as the hollow part of (1) is attached, and the nozzle (2) is attached to the lower end of a mandrel shaft (4) connected to a parison control cylinder (3) installed above the head body (1). 2) Place the nozzle inside (
2), the mandrel (6) extending in the width direction (horizontal direction in FIG. 5) of the opening of the nozzle (2) is completely installed so as to form a sheet-like passage (5) between the parison control cylinder (3) and the parison control cylinder (3). The width of the outlet slit (7) at the lower end of the flow (5) can be adjusted by raising and lowering the mandrel (6) via the mandrel shaft (4).
又、前記ヘッド本体（１）内には、該ヘッド本体（１）
内空空部の幅方向に伸びる平板形状の仕切り壁（８）
（８）をマンドレル軸（４）を挾むようマンドレル（６
）上に立設して、該各仕切り壁（８）とヘッド本体（１
）内壁との間に樹脂の蓄積室αυ（至）を形成し、該蓄
積室αＧ（至）内に、ヘッド本体（１）上方に設置した
射出シリンダ（９） （９）と連結せる平板プランジャ
００００を上下方向摺動可能に挿入する。Further, inside the head body (1), the head body (1)
A flat plate-shaped partition wall (8) extending in the width direction of the inner cavity
(8) so that the mandrel shaft (4) is sandwiched between the mandrels (6).
) on top of each partition wall (8) and the head body (1).
) A flat plate plunger that forms a resin accumulation chamber αυ (to) between the inner wall and is connected to an injection cylinder (9) (9) installed in the storage chamber αG (to) above the head body (1). 0000 is inserted so that it can be slid in the vertical direction.
上記プランジャα１は、第５図にも示す如く、その外側
面に、ヘッド本体（１）の上側部に設けた樹脂人口００
と連通ずるよう上下方向に伸びる所要長さの縦溝Ｏａと
該縦溝Ｏカの下端に連通ずる幅方向（横方向）の分配溝
（至）とを刻設してあシ、且つ該分配溝（至）より下部
に位置する外側面部を、ヘッド本体（１）内壁との間に
絞り間隙α→を形成するよう分配溝（至）の上部に位置
する外側面より薄肉状に段差■）形成しである。As shown in FIG.
A vertical groove Oa of a required length extending in the vertical direction so as to communicate with the vertical groove Oa, and a distribution groove (end) in the width direction (horizontal direction) communicating with the lower end of the vertical groove Oa being carved therein; The outer surface located below the groove (to) is thinner than the outer surface located above the distribution groove (to) so as to form a narrowing gap α → with the inner wall of the head body (1). It is formed.
同、第４図中（ト）はプランジャαＯの摺動時のガイド
キー、Ｑ７）は金型である。In the same figure, (g) in FIG. 4 is a guide key when the plunger αO slides, and Q7) is a mold.
次に作動について説明する。Next, the operation will be explained.
射出シリンダ（９）の操作により各プランジャαＱを所
要量上昇させて各プランジャαＱの下部に所定の蓄積室
（至）（至）を形成した状態において、押出し機（図示
せず）から溶融樹脂を押出すと、該樹脂は、ヘッド本体
（１）内に入って各プランジャ００の縦溝Ｏノを通り更
に幅方向の分配溝（至）内に流れる。賞、入口００の上
部にはガイドキー（ト）が設けであるため樹脂はヘッド
本体（１）の上方へ押出されることはない。With each plunger αQ raised by the required amount by operating the injection cylinder (9) to form a predetermined accumulation chamber (to) at the bottom of each plunger αQ, molten resin is pumped from an extruder (not shown). When extruded, the resin enters the head body (1), passes through the longitudinal groove O of each plunger 00, and further flows into the distribution groove (to) in the width direction. Since a guide key (g) is provided above the entrance 00, the resin will not be pushed out above the head body (1).
各プランジャαＱの分配溝（至）内に流れた樹脂は更に
押されて各プランジャαＱ下部の蓄積室（至）に流れ込
むが、この際、各プランジャＯＧの分配溝（至）より下
部に位置する外側面部とヘッド本体（１）内壁との間に
絞り間隙α→が形成しであるので、樹脂はこの絞り間隙
α→を通過する時に流量が調整され、幅方向均一な流量
で各蓄積室（至）内に貯蔵される。The resin that has flowed into the distribution groove (to) of each plunger αQ is further pushed and flows into the accumulation chamber (to) at the bottom of each plunger αQ, but at this time, the resin is located below the distribution groove (to) of each plunger OG. Since a throttle gap α→ is formed between the outer surface part and the inner wall of the head body (1), the flow rate of the resin is adjusted when passing through this throttle gap α→, and the flow rate is uniform in the width direction of each accumulation chamber ( to).
各蓄積室（至）内の樹脂が必要な量に達したら、各射出
シリンダ（９）を操作して各プランジャαＯを下降させ
る。各プランジャ（ＩＧが下降すると、その圧力により
各蓄積室（至）内の樹脂は強制的にマイドレル（６）と
ノズル（２）との間の通路（５）を通り、各出口スリッ
ト（７）よりシード状パリソンとして押出される。When the resin in each storage chamber reaches the required amount, each injection cylinder (9) is operated to lower each plunger αO. When each plunger (IG) descends, its pressure forces the resin in each accumulation chamber (to) through the passage (5) between Mydrel (6) and the nozzle (2), and through each outlet slit (7). It is extruded as a seed parison.
しかして、押出された２枚のシート状パリソンを、金型
αηでその両端を併せるように挾み、プロー成形を行う
。この場合、パリソンがシート状に押出されることから
、金型αηの上端をノズル（２）の下端に近付けてもパ
リソンは切離れて落下する虞れがなく、又下端の湾曲も
防止できる。Then, the two extruded sheet-like parisons are sandwiched between molds αη so that both ends thereof are brought together, and blow molding is performed. In this case, since the parison is extruded in the form of a sheet, even if the upper end of the mold αη is brought close to the lower end of the nozzle (2), there is no risk that the parison will separate and fall, and the lower end can also be prevented from curving.
このようにしてプロー成形することにより、周方向均一
な高精度の偏平形状製品を得ることができる。By blow molding in this manner, a highly accurate flat-shaped product that is uniform in the circumferential direction can be obtained.
第６図及び第７図に示すものは本発明の他の実施例であ
り、前記実施例におけるノズル（２）とマンドレル（６
）との間のシート状通路（５ンを、第８図（Ａ）（Ｂ）
（Ｃ）に示すようにマンドレル（６）の幅方向端部を
順次上部より下部へ削り取って行くことにより断面変化
させ、合流通路（５α）及び偏平環状通路（Ｉｓｂ）を
形成したものである。What is shown in FIG. 6 and FIG. 7 is another embodiment of the present invention, in which the nozzle (2) and the mandrel (6) in the above embodiment are shown.
) and the sheet-like passage (5 mm) in Figure 8
As shown in (C), the cross section of the mandrel (6) is changed by scraping the ends of the mandrel (6) sequentially from the top to the bottom to form a merging passage (5α) and a flat annular passage (Isb).
前記第３図及び第４図に示した実施例では２枚のシート
状パリソンを金型αηでピンチするため、金型ａηの全
周にパリができて後加工が必要となる場合があるが、斯
かる方式とした場合には、通路（５）内に流し込まれた
樹脂が合流通路（枦）、偏平環状通路（５ｂ）と通過し
て出口スリット（７）から押出されるまでに偏平環状に
一体化形成することができる。従って金型ａηでピンチ
しても両側にはパリが発生せず、歩留りを更に向上させ
ることができる。In the embodiment shown in FIGS. 3 and 4, two sheet-like parisons are pinched together by the mold αη, so parison may be formed around the entire circumference of the mold aη, which may require post-processing. In the case of such a method, the resin poured into the passageway (5) passes through the confluence passageway (shape) and the flat annular passageway (5b), and before being extruded from the outlet slit (7), the resin flows through the flat annular passageway (5b). It can be formed integrally with the Therefore, even if the mold aη is pinched, no flash will occur on both sides, and the yield can be further improved.
第９図は本発明の更に他の実施例であり、前記第７図に
示した実施例において、ノズル（２）の開口面に幅方向
に沿うチョークパー（ト）（ト）を対向して埋設し、該
各チョークバー（至）をノズル（２）に螺着せしめた調
整ボルトα呻に連結して各チョークバー（至）が偏平環
状通路（５ｈ）内に出入し得るよう構成し、一方ノズル
（２）の下端開口縁に切込み溝輪を幅方向に設けて可撓
部（２α）を形成し、該可撓部（２ａ）に接して可撓部
（２α）を撓ませ得る調整ボルト（ハ）をノズル（２）
に螺着せしめたものである。Fig. 9 shows still another embodiment of the present invention, in which choke parts (t) (t) (t) are arranged opposite to the opening surface of the nozzle (2) along the width direction in the embodiment shown in Fig. 7. embedded, and each choke bar (to) is connected to an adjustment bolt α screwed onto the nozzle (2), so that each choke bar (to) can move in and out of the flat annular passage (5h), On the other hand, a cut groove ring is provided in the width direction on the lower opening edge of the nozzle (2) to form a flexible portion (2α), and adjustment is made so that the flexible portion (2α) can be bent in contact with the flexible portion (2a). Insert the bolt (c) into the nozzle (2)
It is screwed on.
斯かる方式とした場合には、調整ボルトＱ呻を操作して
各チョークバー（至）を偏平環状通路（５旬内に出入さ
せることによシ、樹脂の流量を調整でき、又調整ボルト
（２）を操作して各可撓部（２α）を撓ませることによ
り出口スリット（７）の幅を調整でき、これらの調整に
よって、より高品質の製品を得ることができる。又これ
らの調整機構を第３図及び第４図に示した実施例に対し
て採用することも勿論可能である。If such a method is used, the flow rate of the resin can be adjusted by operating the adjustment bolts Q and moving each choke bar into and out of the flat annular passage. By operating 2) and bending each flexible portion (2α), the width of the exit slit (7) can be adjusted, and by these adjustments, a product of higher quality can be obtained.Also, these adjustment mechanisms Of course, it is also possible to apply this to the embodiments shown in FIGS. 3 and 4.
第１０図に示すものは本発明の更に別の実施例であり、
前記第９図に示した実施例において、各プラン４ジヤ（
１１）の外側部に、ヘッド本体（１）の底部との間□に
シート状通路■を形成↑るよう他あ仕切９壁（８α）（
８α）を配設して該各仕切勺壁（８α）をヘッド本体（
１）の上部に固着し、且っ該各仕切り壁（８ａ）とヘッ
ド本体（１３内壁との間に他の蓄−室（１５ａ） （１
５α）を設けると共に、該各蓄積室（ｌＳα）内にヘッ
ド本体（１）の上方に設置した他の射出シリンダ（９α
）（９α）と連結せるプランジャα（ＩＱＯと同様な他
のプランジャ（１０α）（ｌＯα）を摺動可能に挿入し
たものである。伺（１１α）は他の樹脂の入口である。What is shown in FIG. 10 is yet another embodiment of the present invention,
In the embodiment shown in FIG. 9, each plan has four gears (
11), the other partition 9 wall (8α) (
8α) and connect each partition wall (8α) to the head body (
1), and between each partition wall (8a) and the inner wall of the head body (13), another storage chamber (15a) (1
5α), and another injection cylinder (9α) installed above the head body (1) in each storage chamber (lSα).
) (9α) and another plunger (10α) (lOα) similar to IQO is slidably inserted therein. The opening (11α) is an inlet for another resin.
斯かる方式、の場合には、片側のプランジャａ０にて蓄
積室（至）かＪら押出された樹脂と、同側のプランジャ
（１０α）にて蓄積室（１５α）から押出され通路（イ
）を通過′した樹脂″とを通路（５）にて一旦合流させ
て２層のシート状とし、更にこの２層シート状樹脂と他
側からの２層シート状樹脂とを合流通路・（５α）にて
合流させ、偏平環状通路（５ｂ）を通し出口スリット（
７ンより２層の偏平環状パリソンを押出すことができる
。又同様に５層、４層と多層に亘る多層プロー成形が可
能であり、高範囲の製品を得ることができる。In the case of such a method, the resin is pushed out from the accumulation chamber (15α) by the plunger a0 on one side, and the resin is pushed out from the accumulation chamber (15α) by the plunger (10α) on the same side, and the resin is pushed out from the passageway (a). The resin that has passed through is once merged in the passage (5) to form a two-layer sheet, and then this two-layer sheet resin and the two-layer sheet resin from the other side are combined in the convergence passage (5α). and pass through the flat annular passageway (5b) to the outlet slit (
A two-layer oblate annular parison can be extruded from a 7-mm tube. Similarly, multi-layer blow molding including 5 layers and 4 layers is possible, and a wide range of products can be obtained.
冑、本発明は前記実施例にのみ限定されるものではなく
、本発明の要旨を逸脱しない限り種々変更を加え得るこ
とは勿論である。However, it goes without saying that the present invention is not limited to the embodiments described above, and that various changes can be made without departing from the gist of the present invention.
以上のように本発明によれば、
（１）押出されたパリソンをシート状や偏平環状とする
ことができるので、金型をノズルに近付けてピンチして
もパリソンが切離れることかなく、従って使用樹脂の無
駄をなくせる。As described above, according to the present invention, (1) the extruded parison can be made into a sheet shape or a flat ring shape, so even if the mold is brought close to the nozzle and pinched, the parison will not separate; Eliminates waste of resin used.
（１１）大型の成形品の場合でも、金型でピンチしり後
パリソン下端が湾曲しないので、歩留りが向上する。(11) Even in the case of large molded products, the lower end of the parison does not curve after pinching with the mold, so the yield is improved.
１１ｉ＋ ノズルに移動可能なチョークバーを設けれ
ば、パリソンの肉厚を任意に変化させることができ、偏
平形状の成形品だけでなくその他の容器類等にも適用し
得る。11i+ If a movable choke bar is provided on the nozzle, the thickness of the parison can be changed arbitrarily, and it can be applied not only to flat shaped molded products but also to other containers.
等の優れた効果を奏し得る。It can produce excellent effects such as
第１図は従来装置の正面図、第２図は第１図の切断側面
図、第３図は本発明の装置の正面図、第４図は第６図の
切断側面図、第５図はプランジャの説明図、第６図は本
発明の装置の他の実施例を示す切断正面図（第７図の■
方向矢視図）、第７図は第６図の切断側面図、第８図（
〜Ｑ３１ （Ｃ）は第６図の夫々へ方向、Ｂ方向、Ｃ方
向矢視図、第９図は本発明の装置の更に他の実施例を示
す切断側面図、第１０図は本発明の装置の更に別の実施
例を示す切断側面図である。
（１）・・・パリソンヘッド本体、（２）・・・ノズル
、（６）・・・マンドレル、（７）・・・出口スリット
、（８）・・・仕切り壁、（至）・・・蓄積室。
特許出願人
石川島播磨重工業株式会社
特許出願人代理人FIG. 1 is a front view of the conventional device, FIG. 2 is a cutaway side view of FIG. 1, FIG. 3 is a front view of the device of the present invention, FIG. 4 is a cutaway side view of FIG. 6, and FIG. An explanatory diagram of the plunger, and FIG. 6 is a cutaway front view showing another embodiment of the device of the present invention (
7 is a cutaway side view of FIG. 6, and FIG.
~Q31 (C) is a view in the direction, direction B, and direction C of FIG. 6, respectively, FIG. 9 is a cutaway side view showing still another embodiment of the device of the present invention, and FIG. FIG. 7 is a cutaway side view showing yet another embodiment of the device. (1)... Parison head body, (2)... Nozzle, (6)... Mandrel, (7)... Exit slit, (8)... Partition wall, (to)... Accumulation chamber. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant agent
Claims (1)
様な形状としたノズルを取付けると共に、前記本体内に
、幅方向に至る仕切り板を適宜数配設して該仕切り板の
外側部に溶融樹脂の蓄積室を夫々平板状に形成し、該各
蓄積室内に、蓄積室内に流入蓄積した溶融樹脂を前記ノ
ズル内へ送り込むための平板型プランジャを摺動可能に
設け、且つ前記ノズル内に、マンドレルを該マンドレル
とノズル内壁との間で２つのンート状スリットを形成す
るよう配設し、該各スリットから押出されるパリソンを
２枚のシート状にし得るよう構成したことを特徴とする
プロー成形装置。 ２）中空偏平形状としたパリソンヘッド本体の下端に同
様な形状としたノズルを取付けると共に、前記本体内に
、幅方向に至る仕切り板を適宜数配設して該仕切り板の
外側部に溶融樹脂の蓄積室を夫々平板状に形成し、該各
蓄積室内に、蓄積室内に流入蓄積した溶融樹脂を前記ノ
ズル内へ送り込むための平板型プランジャを摺動可能に
設け、且つ前記ノズル内に、マンドレルを該マンドレル
の下端外周とノズル内壁との間で偏平環状スリットを形
成するよう配設し、該スリットから押出されるパリソン
を一体の偏平環状にし得るよう構成したことを特徴とす
るプロー成形装置。[Claims] 1) A nozzle having a similar shape is attached to the lower end of a parison head body having a hollow flat shape, and an appropriate number of partition plates extending in the width direction are disposed within the body, and the partition plate Accumulating chambers for molten resin are each formed in the shape of a flat plate on the outer side of the accumulating chamber, and a flat plunger for feeding the molten resin that has flowed and accumulated in the accumulating chamber into the nozzle is slidably provided in each accumulating chamber, and A mandrel is disposed within the nozzle so as to form two slits in the form of a slit between the mandrel and the inner wall of the nozzle, and the parison extruded from each slit can be formed into two sheets. Characteristic blow molding equipment. 2) Attach a nozzle with a similar shape to the lower end of the parison head body, which has a hollow flat shape, and arrange an appropriate number of partition plates extending in the width direction inside the body, and apply molten resin to the outside of the partition plates. Each of the accumulation chambers is formed into a flat plate shape, and a flat plunger is slidably provided in each accumulation chamber for feeding the molten resin that has flowed and accumulated in the accumulation chamber into the nozzle, and a mandrel is provided in the nozzle. A blow molding device characterized in that the mandrel is arranged to form a flat annular slit between the outer periphery of the lower end of the mandrel and the inner wall of the nozzle, and the parison extruded from the slit can be formed into an integral flat annular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56194881A JPS5896528A (en) | 1981-12-03 | 1981-12-03 | Blow molder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56194881A JPS5896528A (en) | 1981-12-03 | 1981-12-03 | Blow molder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5896528A true JPS5896528A (en) | 1983-06-08 |
| JPS6338285B2 JPS6338285B2 (en) | 1988-07-29 |
Family
ID=16331866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56194881A Granted JPS5896528A (en) | 1981-12-03 | 1981-12-03 | Blow molder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5896528A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273421A (en) * | 1990-05-29 | 1993-12-28 | Ube Industries, Ltd. | Injection type molding machine for producing hollow double wall type plastic articles |
| US5281126A (en) * | 1992-02-25 | 1994-01-25 | Ube Industries, Ltd. | Blow molding die |
| US6033204A (en) * | 1992-04-20 | 2000-03-07 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Flat blow molding machine, flat blow method and products of flat blow molding |
| WO2009003662A2 (en) * | 2007-06-29 | 2009-01-08 | Feuerherm, Harald | Method for producing blow-moulded hollow bodies |
| EP3858580A1 (en) * | 2020-01-31 | 2021-08-04 | Uwe Rost und Jörg Neumann GbR | Mould for manufacturing plastic preforms and tool assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52108541U (en) * | 1976-02-13 | 1977-08-18 | ||
| JPS53102374A (en) * | 1977-01-22 | 1978-09-06 | Teraoka Shoichi | Blow molding method by countercurrently extruded sheet |
-
1981
- 1981-12-03 JP JP56194881A patent/JPS5896528A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52108541U (en) * | 1976-02-13 | 1977-08-18 | ||
| JPS53102374A (en) * | 1977-01-22 | 1978-09-06 | Teraoka Shoichi | Blow molding method by countercurrently extruded sheet |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273421A (en) * | 1990-05-29 | 1993-12-28 | Ube Industries, Ltd. | Injection type molding machine for producing hollow double wall type plastic articles |
| US5281126A (en) * | 1992-02-25 | 1994-01-25 | Ube Industries, Ltd. | Blow molding die |
| US6033204A (en) * | 1992-04-20 | 2000-03-07 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Flat blow molding machine, flat blow method and products of flat blow molding |
| WO2009003662A2 (en) * | 2007-06-29 | 2009-01-08 | Feuerherm, Harald | Method for producing blow-moulded hollow bodies |
| WO2009003662A3 (en) * | 2007-06-29 | 2009-03-19 | Feuerherm Harald | Method for producing blow-moulded hollow bodies |
| EP3858580A1 (en) * | 2020-01-31 | 2021-08-04 | Uwe Rost und Jörg Neumann GbR | Mould for manufacturing plastic preforms and tool assembly |
| DE102020102528A1 (en) | 2020-01-31 | 2021-08-05 | Uwe Rost und Jörg Neumann GbR (vertretungsberechtigte Gesellschafter: Uwe Rost, 53842 Troisdorf und Jörg Neumann, 53842 Troisdorf) | MOLDING TOOL FOR MANUFACTURING PLASTIC PREFORMS AND TOOL ARRANGEMENT |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6338285B2 (en) | 1988-07-29 |
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