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
Links
- 238000000465 moulding Methods 0.000 claims 3
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 230000002265 prevention Effects 0.000 claims 2
- 239000003921 oil Substances 0.000 claims 1
- 229920005992 thermoplastic resin Polymers 0.000 claims 1
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)
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.
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)
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 |
-
1985
- 1985-10-29 JP JP16627185U patent/JPS6273920U/ja active Pending
Cited By (3)
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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