JPS5621838A - Plastic molding device - Google Patents
Plastic molding deviceInfo
- Publication number
- JPS5621838A JPS5621838A JP9610679A JP9610679A JPS5621838A JP S5621838 A JPS5621838 A JP S5621838A JP 9610679 A JP9610679 A JP 9610679A JP 9610679 A JP9610679 A JP 9610679A JP S5621838 A JPS5621838 A JP S5621838A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- head
- temperature
- imbedded
- sleeve
- 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
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/586—Injection or transfer plungers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To prevent from backflow of molten molding material in such a manner as adjusts gap size between a sleeve and a plunger, by a method wherein heaters are imbedded in a sleeve seperately from a cylinder, and in a plunger separately from a screw, and their respective temperatures are controlled individually. CONSTITUTION:For example, a plunger head 3, 3 cartridge heaters 1, and a head 3 are imbedded. The heads 1 are connected to a heater power source 9, and separately from said connection, a temperature sensor 2 to a temperature set controller 10. This enables the head 3 to maintain a constant temperature, or a constant heat expansion amount when it is positioned at the outside during the period of waiting for molding operation and also when positioned at the inside of the mold during the period of resin-pushing operation. An external diameter of the plunger head 3 is varied by controlling the temperature at a necessary time. EFFECT:To enable the reduction in slide resistance, the improvement of endurance, the increase in yield, and the reduction in installation cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9610679A JPS5621838A (en) | 1979-07-30 | 1979-07-30 | Plastic molding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9610679A JPS5621838A (en) | 1979-07-30 | 1979-07-30 | Plastic molding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5621838A true JPS5621838A (en) | 1981-02-28 |
Family
ID=14156129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9610679A Pending JPS5621838A (en) | 1979-07-30 | 1979-07-30 | Plastic molding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5621838A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02127423U (en) * | 1989-03-31 | 1990-10-19 | ||
JPH0821530A (en) * | 1994-07-07 | 1996-01-23 | Inoue Seisakusho:Kk | Pressurizing extruding device |
CN105856531A (en) * | 2016-03-31 | 2016-08-17 | 界首市华盛塑料机械有限公司 | Energy-saving extrusion screw special for modification of reworked plastic |
-
1979
- 1979-07-30 JP JP9610679A patent/JPS5621838A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02127423U (en) * | 1989-03-31 | 1990-10-19 | ||
JPH0821530A (en) * | 1994-07-07 | 1996-01-23 | Inoue Seisakusho:Kk | Pressurizing extruding device |
CN105856531A (en) * | 2016-03-31 | 2016-08-17 | 界首市华盛塑料机械有限公司 | Energy-saving extrusion screw special for modification of reworked plastic |
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