JPH044036U - - Google Patents
Info
- Publication number
- JPH044036U JPH044036U JP4267290U JP4267290U JPH044036U JP H044036 U JPH044036 U JP H044036U JP 4267290 U JP4267290 U JP 4267290U JP 4267290 U JP4267290 U JP 4267290U JP H044036 U JPH044036 U JP H044036U
- Authority
- JP
- Japan
- Prior art keywords
- foaming tank
- foaming
- resin particles
- thermoplastic resin
- piping
- 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
- 238000005187 foaming Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 5
- 229920005992 thermoplastic resin Polymers 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 4
- 238000003756 stirring Methods 0.000 claims 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
第１図は本考案に係る発泡性熱可塑性樹脂粒子
の予備発泡装置を説明するための説明図である。
第２図乃至第８図はいずれも本考案に用いられる
流出抵抗手段の他の実施例を説明するための図で
あり、第２図は配管の長さを可変にした例を示す
要部断面図、第３図は曲がり管を用いた例を示す
要部説明図、第４図はオリフイス板を用いた例を
示す断面図、第５図は複数のオリフイス板を用い
た例を示す側面図、第６図は邪魔板を用いた例を
示す断面図、第７図は複数の邪魔板を用いた例を
示す側面断面図、第８図は抵抗体を用いた例を示
す断面図である。第９図は従来の常圧発泡槽を示
す説明図であり、第１０図は従来の加圧発泡槽を
示す説明図である。
１０……発泡槽、１２……マンホール扉、１８
……給気配管、２０，２２，２６，３０，３６，
４０……排気配管、｛２４……配管、２８……曲
がり管、３２……オリフイス板、３４……邪魔板
、３８……抵抗体｝（流出抵抗手段）。
FIG. 1 is an explanatory diagram for explaining a pre-foaming device for expandable thermoplastic resin particles according to the present invention.
2 to 8 are views for explaining other embodiments of the outflow resistance means used in the present invention, and FIG. 2 is a cross-sectional view of the main part showing an example in which the length of the piping is variable. Figure 3 is an explanatory view of the main parts showing an example using a bent pipe, Figure 4 is a sectional view showing an example using an orifice plate, and Figure 5 is a side view showing an example using multiple orifice plates. , FIG. 6 is a sectional view showing an example using a baffle plate, FIG. 7 is a side sectional view showing an example using a plurality of baffle plates, and FIG. 8 is a sectional view showing an example using a resistor. . FIG. 9 is an explanatory diagram showing a conventional normal pressure foaming tank, and FIG. 10 is an explanatory diagram showing a conventional pressure foaming tank. 10... Foam tank, 12... Manhole door, 18
...Air supply piping, 20, 22, 26, 30, 36,
40... Exhaust piping, {24... Piping, 28... Bent pipe, 32... Orifice plate, 34... Baffle plate, 38... Resistor} (Outflow resistance means).
Claims (1)
泡槽内に加熱媒体を吹き込む給気配管と、該発泡
槽内に吹き込まれた加熱媒体を排出する排気配管
とを備え、該発泡槽内に収納された所定量の発泡
性熱可塑性樹脂粒子を攪拌しつつ該発泡槽内に加
熱媒体を吹き込み、当該樹脂粒子を加熱膨張させ
て予備発泡させる予備発泡装置において、前記排
気配管を介して前記発泡槽を常時大気に開放させ
るとともに、排出気体に流出抵抗を生じさせる流
出抵抗手段を該排気配管に設け、該発泡槽内が正
圧に保たれるようにしたことを特徴とする発泡性
熱可塑性樹脂粒子の予備発泡装置。 (2) 前記流出抵抗手段として前記排気配管にお
ける配管抵抗又はオリフイス板、邪魔板若しくは
抵抗体などを用いたことを特徴とする発泡性熱可
塑性樹脂粒子の予備発泡装置。[Claims for Utility Model Registration] (1) A closed foaming tank equipped with a stirring device, an air supply pipe for blowing a heating medium into the foaming tank, and a system for discharging the heating medium blown into the foaming tank. and an exhaust pipe, and a heating medium is blown into the foaming tank while stirring a predetermined amount of foamable thermoplastic resin particles stored in the foaming tank, thereby heating and expanding the resin particles to pre-foam them. In the apparatus, the foaming tank is always opened to the atmosphere through the exhaust piping, and the exhaust piping is provided with an outflow resistance means for creating outflow resistance to the exhaust gas, so that the inside of the foaming tank is maintained at a positive pressure. A pre-foaming device for expandable thermoplastic resin particles, characterized in that: (2) A pre-foaming device for expandable thermoplastic resin particles, characterized in that a piping resistance in the exhaust piping, an orifice plate, a baffle plate, a resistor, or the like is used as the outflow resistance means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042672U JPH0616905Y2 (en) | 1990-04-22 | 1990-04-22 | Pre-expansion device for expandable thermoplastic resin particles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042672U JPH0616905Y2 (en) | 1990-04-22 | 1990-04-22 | Pre-expansion device for expandable thermoplastic resin particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044036U true JPH044036U (en) | 1992-01-14 |
| JPH0616905Y2 JPH0616905Y2 (en) | 1994-05-02 |
Family
ID=31554420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990042672U Expired - Lifetime JPH0616905Y2 (en) | 1990-04-22 | 1990-04-22 | Pre-expansion device for expandable thermoplastic resin particles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616905Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642459A (en) * | 1979-09-14 | 1981-04-20 | Iwatsu Electric Co Ltd | Push-button dialing circuit |
-
1990
- 1990-04-22 JP JP1990042672U patent/JPH0616905Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642459A (en) * | 1979-09-14 | 1981-04-20 | Iwatsu Electric Co Ltd | Push-button dialing circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0616905Y2 (en) | 1994-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3897899A (en) | Plastic foam cup and method for producing it | |
| JPH044036U (en) | ||
| JPS634909A (en) | Prefoaming of thermoplastic resin particle | |
| US3285795A (en) | Heat curable plastic sheets and laminates | |
| US3809735A (en) | Method of moulding heat-expandable thermoplastic polymeric resinous granules involving enhanced distribution of the hot gaseous medium in the mold cavity | |
| JPS5887668U (en) | side sill structure | |
| JPS632154Y2 (en) | ||
| JPS59120428A (en) | Method and device for extrusion-molding tubular foamed polymer sheet | |
| JPH0413029U (en) | ||
| JPH06156052A (en) | Duct structure for low noise air conditioning | |
| JPH018894Y2 (en) | ||
| JP2652732B2 (en) | Blow molding method | |
| JPS58121258U (en) | vehicle seat | |
| JPS5820776B2 (en) | Dannetsu Seiyoukino Seizouhou | |
| JPS6233917U (en) | ||
| JPH02112155U (en) | ||
| JPH073209Y2 (en) | Insulation frame material to prevent condensation in air conditioning equipment | |
| JPS6144507Y2 (en) | ||
| CN207936446U (en) | A kind of noise eliminating equipment | |
| JPH037146Y2 (en) | ||
| JPS56136330A (en) | Production of heat-insulating duct | |
| JPH0373214U (en) | ||
| JPS644489Y2 (en) | ||
| JP2000272521A (en) | Lightweight steering wheel by beads molding | |
| JPH0224715U (en) |