JPS6273920U - - Google Patents

Info

Publication number
JPS6273920U
JPS6273920U JP16627185U JP16627185U JPS6273920U JP S6273920 U JPS6273920 U JP S6273920U JP 16627185 U JP16627185 U JP 16627185U JP 16627185 U JP16627185 U JP 16627185U JP S6273920 U JPS6273920 U JP S6273920U
Authority
JP
Japan
Prior art keywords
cylinder
sheet
press device
forming machine
sub
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.)
Pending
Application number
JP16627185U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16627185U priority Critical patent/JPS6273920U/ja
Publication of JPS6273920U publication Critical patent/JPS6273920U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Press Drives And Press Lines (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図はこの考案の実施例を示すものであり、第１
図および第２図は順次作動工程を示す概略構造断
面図、第３図はプレス移動速度の変化を示す実験
グラフ図である。 １……上型、２……下型、３……油圧シリンダ
ー、３０……主シリンダー、３１……ピストン、
３４……ピストンロツド、３５……副シリンダー
、３６……固定ロツド、３７……通油路、３８…
…空気抜き孔、４……電磁比例制御弁、５……シ
ーケンス弁、６……油タンク、７……プレフイル
弁。 The figure shows an example of this invention.
2 and 2 are schematic structural cross-sectional views showing sequential operation steps, and FIG. 3 is an experimental graph showing changes in press movement speed. 1...Upper mold, 2...Lower mold, 3...Hydraulic cylinder, 30...Main cylinder, 31...Piston,
34...Piston rod, 35...Sub-cylinder, 36...Fixed rod, 37...Oil passage, 38...
...Air vent hole, 4...Solenoid proportional control valve, 5...Sequence valve, 6...Oil tank, 7...Prefill valve.

Claims (1)

【実用新案登録請求の範囲】 １ 加熱軟化した熱可塑性樹脂シートに対して、
雌雄一対の成形型を挾圧プレスして、シート成形
品を製造するシート成形機において、成形型をプ
レス作動させる油圧シリンダーとして、主シリン
ダーのピストンロツド内に副シリンダーを形成し
、主シリンダーに固定された固定ロツドに、副シ
リンダーを摺動自在に挿通してあり、固定ロツド
から副シリンダー内に、作動油を送給可能に構成
したことを特徴とするシート成形機のプレス装置
。 ２ シート成形機が、雌雄一対の成形型を上下に
配置した縦型の成形機である上記実用新案登録請
求の範囲第１項記載のシート成形機のプレス装置
。 ３ 油圧シリンダーの主シリンダーのうち、ピス
トンの後方空間に、加圧用の油圧配管とは別系統
で、作動油を供給する、負圧防止機構を設けてい
る上記実用新案登録請求の範囲第１項記載のシー
ト成形機のプレス装置。 ４ 負圧防止機構が、ピストンの後方空間に配管
連結した油タンクである上記実用新案登録請求の
範囲第３項記載のシート成形機のプレス装置。 ５ 副シリンダーの先端に空気抜き孔を形成して
いる上記実用新案登録請求の範囲第１項記載のシ
ート成形機のプレス装置。[Scope of claims for utility model registration] 1. Regarding heat-softened thermoplastic resin sheet,
In a sheet forming machine that produces sheet molded products by clamping and pressing a pair of male and female molds, a sub-cylinder is formed within the piston rod of the main cylinder and is fixed to the main cylinder as a hydraulic cylinder that presses the molds. A press device for a sheet forming machine, characterized in that a sub-cylinder is slidably inserted into a fixed rod, and hydraulic oil can be fed from the fixed rod into the sub-cylinder. 2. The press device for a sheet molding machine according to claim 1, wherein the sheet molding machine is a vertical molding machine in which a pair of male and female molds are arranged above and below. 3. Claim 1 of the above-mentioned utility model registration claim, which is provided with a negative pressure prevention mechanism that supplies hydraulic oil to the rear space of the piston in the main cylinder of the hydraulic cylinder in a separate system from the hydraulic piping for pressurization. The press device of the sheet forming machine described. 4. The press device for a sheet forming machine according to claim 3, wherein the negative pressure prevention mechanism is an oil tank piped to the rear space of the piston. 5. The press device for a sheet forming machine according to claim 1 of the above-mentioned utility model registration, wherein an air vent hole is formed at the tip of the sub-cylinder.
JP16627185U 1985-10-29 1985-10-29 Pending JPS6273920U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16627185U JPS6273920U (en) 1985-10-29 1985-10-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16627185U JPS6273920U (en) 1985-10-29 1985-10-29

Publications (1)

Publication Number Publication Date
JPS6273920U true JPS6273920U (en) 1987-05-12

Family

ID=31097085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16627185U Pending JPS6273920U (en) 1985-10-29 1985-10-29

Country Status (1)

Country Link
JP (1) JPS6273920U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007806A1 (en) * 2008-07-18 2010-01-21 東洋製罐株式会社 Compression molding apparatus, and synthetic resin container manufacturing method
JP2021007956A (en) * 2019-06-28 2021-01-28 株式会社デンソー Press molding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010007806A1 (en) * 2008-07-18 2010-01-21 東洋製罐株式会社 Compression molding apparatus, and synthetic resin container manufacturing method
JP5482653B2 (en) * 2008-07-18 2014-05-07 東洋製罐株式会社 Compression molding apparatus and method for manufacturing synthetic resin container
JP2021007956A (en) * 2019-06-28 2021-01-28 株式会社デンソー Press molding machine

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