JPH0483733U - - Google Patents
Info
- Publication number
- JPH0483733U JPH0483733U JP1990129738U JP12973890U JPH0483733U JP H0483733 U JPH0483733 U JP H0483733U JP 1990129738 U JP1990129738 U JP 1990129738U JP 12973890 U JP12973890 U JP 12973890U JP H0483733 U JPH0483733 U JP H0483733U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- extrusion
- shoe
- molding machine
- extrusion 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.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92019—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/924—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/926—Flow or feed rate
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
第１図は実施の一例の回路図、第２図は押出成
形機の押出ダイス部分の略示断面図、第３図は第
２図中−線位置における背圧シユーの断面図
、第４図は別の実施例たる背圧シユーの第３図と
同様の断面図、第５図は本考案に係る背圧制御装
置を用いた場合の押出し成形の１サイクル中の押
出しシリンダー内の圧力変化を示す線図、第６図
は背圧を作用させない場合の押出し成形の１サイ
クル中の押出シリンダー内の圧力変化を示す線図
、第７図は従来の背圧装置を用いた場合の連続押
出成形工程中の押出シリンダー内の圧力変化を示
す線図、第８図は、第７図に示すもののうちの押
出し成形の１サイクルにおける押出シリンダー内
の圧力変化を示す線図である。 １……押出成形機、２……押出ダイス、３……
出口部、５……固定シユー、７……可動シユー、
８……流体圧シリンダー装置、９……プランジヤ
ー、１２……成形品、１８……流体流量制御弁、
１９……制御回路、２０……押出シリンダー、２
１……検出器、２２……Ａ／Ｄ変換器、２３……
演算器（ＣＰＵ）、２４……Ｄ／Ａ変換器、２５
……増幅器、Ｏ−Ｏ……中心軸線。
形機の押出ダイス部分の略示断面図、第３図は第
２図中−線位置における背圧シユーの断面図
、第４図は別の実施例たる背圧シユーの第３図と
同様の断面図、第５図は本考案に係る背圧制御装
置を用いた場合の押出し成形の１サイクル中の押
出しシリンダー内の圧力変化を示す線図、第６図
は背圧を作用させない場合の押出し成形の１サイ
クル中の押出シリンダー内の圧力変化を示す線図
、第７図は従来の背圧装置を用いた場合の連続押
出成形工程中の押出シリンダー内の圧力変化を示
す線図、第８図は、第７図に示すもののうちの押
出し成形の１サイクルにおける押出シリンダー内
の圧力変化を示す線図である。 １……押出成形機、２……押出ダイス、３……
出口部、５……固定シユー、７……可動シユー、
８……流体圧シリンダー装置、９……プランジヤ
ー、１２……成形品、１８……流体流量制御弁、
１９……制御回路、２０……押出シリンダー、２
１……検出器、２２……Ａ／Ｄ変換器、２３……
演算器（ＣＰＵ）、２４……Ｄ／Ａ変換器、２５
……増幅器、Ｏ−Ｏ……中心軸線。
Claims (1)
- 合成樹脂の押出成形機の押出ダイスの出口部に
、ダイスの中心軸線に沿つて２分割された背圧シ
ユーが直結されており、該背圧シユーの一方は機
台側に固定された固定シユーとされ、他方は流体
圧シリンダー装置のプランジヤーに結合された可
動シユーとされ、固定シユーに対し、半径方向に
接離可能に組み付けられていると共に、前記流体
圧シリンダー装置の流体流量制御弁の制御回路に
は、前記押出成形機の押出シリンダー内の合成樹
脂の圧力の検出器と、該検出器の検出値と、予め
入力されている設定圧力とを比較演算して、前記
固定シユーと可動シユーとの間の挟圧力を、前記
押出シリンダー内を前記設定圧力に維持するのに
必要な圧力とするために必要な流体制御信号を出
力する演算器とが組み込まれている押出成形機の
背圧制御装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990129738U JPH0483733U (ja) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990129738U JPH0483733U (ja) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0483733U true JPH0483733U (ja) | 1992-07-21 |
Family
ID=31877127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990129738U Pending JPH0483733U (ja) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0483733U (ja) |
-
1990
- 1990-11-30 JP JP1990129738U patent/JPH0483733U/ja active Pending