JPS5732921A - Automatic regulation of specific gravity of foamed synthetic resin particle - Google Patents
Automatic regulation of specific gravity of foamed synthetic resin particleInfo
- Publication number
- JPS5732921A JPS5732921A JP10765380A JP10765380A JPS5732921A JP S5732921 A JPS5732921 A JP S5732921A JP 10765380 A JP10765380 A JP 10765380A JP 10765380 A JP10765380 A JP 10765380A JP S5732921 A JPS5732921 A JP S5732921A
- Authority
- JP
- Japan
- Prior art keywords
- specific gravity
- resin particle
- steam
- synthetic resin
- foamed synthetic
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3461—Making or treating expandable particles
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
PURPOSE:To regulate automatically the preforming magnification and the specific gravity of the following raw resin particle by sampling the resin particle prefoamed by steam at discharge, measuring the specific gravity and regulating the steam flow corresponding to the deviation from the set value. CONSTITUTION:A part of the resin particle of which prefoaming has finished by a prefoaming machine 1 is sampled by a sampler 11 at a certain interval and its weight is weighed by a weighing apparatus 21, compared to the set value by a deviation detector 41. An automatic controller of specific gravity 42 is regulated by the pulse signal outputted from the deviation detector 41, the opening of the flow adjusting valve 6 of a steam supply pipe 7 is regulated and the steam flow supplied in a foaming bath 2 of the prefoaming machine 1 is adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10765380A JPS5732921A (en) | 1980-08-07 | 1980-08-07 | Automatic regulation of specific gravity of foamed synthetic resin particle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10765380A JPS5732921A (en) | 1980-08-07 | 1980-08-07 | Automatic regulation of specific gravity of foamed synthetic resin particle |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5732921A true JPS5732921A (en) | 1982-02-22 |
JPH0126324B2 JPH0126324B2 (en) | 1989-05-23 |
Family
ID=14464630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10765380A Granted JPS5732921A (en) | 1980-08-07 | 1980-08-07 | Automatic regulation of specific gravity of foamed synthetic resin particle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5732921A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57168163A (en) * | 1981-04-10 | 1982-10-16 | Japan Synthetic Rubber Co Ltd | Carier for immunoserological inspection reagent |
CN111169017A (en) * | 2020-01-17 | 2020-05-19 | 南京师范大学 | Continuous-to-separate feeding and discharging system for photocuring 3D printing |
-
1980
- 1980-08-07 JP JP10765380A patent/JPS5732921A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57168163A (en) * | 1981-04-10 | 1982-10-16 | Japan Synthetic Rubber Co Ltd | Carier for immunoserological inspection reagent |
JPH0157687B2 (en) * | 1981-04-10 | 1989-12-07 | Japan Synthetic Rubber Co Ltd | |
CN111169017A (en) * | 2020-01-17 | 2020-05-19 | 南京师范大学 | Continuous-to-separate feeding and discharging system for photocuring 3D printing |
CN111169017B (en) * | 2020-01-17 | 2021-11-26 | 南京师范大学 | Continuous-to-separate feeding and discharging system for photocuring 3D printing |
Also Published As
Publication number | Publication date |
---|---|
JPH0126324B2 (en) | 1989-05-23 |
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