DE3344746C1 - Process and device for producing right parallelepipedal foam bodies from plastics particles - Google Patents
Process and device for producing right parallelepipedal foam bodies from plastics particlesInfo
- Publication number
- DE3344746C1 DE3344746C1 DE3344746A DE3344746A DE3344746C1 DE 3344746 C1 DE3344746 C1 DE 3344746C1 DE 3344746 A DE3344746 A DE 3344746A DE 3344746 A DE3344746 A DE 3344746A DE 3344746 C1 DE3344746 C1 DE 3344746C1
- Authority
- DE
- Germany
- Prior art keywords
- steam
- water vapor
- partial streams
- side surfaces
- bed
- 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.)
- Expired
Links
- 239000002245 particle Substances 0.000 title claims abstract description 15
- 239000006260 foam Substances 0.000 title claims abstract description 11
- 239000004033 plastic Substances 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract 11
- 230000007935 neutral effect Effects 0.000 claims abstract description 10
- 239000004794 expanded polystyrene Substances 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000010025 steaming Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 229920002223 polystyrene Polymers 0.000 claims 2
- 239000004793 Polystyrene Substances 0.000 claims 1
- 230000006866 deterioration Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 238000009991 scouring Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 241000554155 Andes Species 0.000 description 1
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
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- 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
- B29C44/3415—Heating or cooling
- B29C44/3426—Heating by introducing steam in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
Abstract
Description
den Dampfkammern befindliche Luft in die Schüttung gedrückt wird. Auf diese Weise wird der Dampfanteil in der Schüttung und damit die Wärmeleitung erhöht, so daß die Bedampfungs- und Abkühlzeiten wesentlich kürzer ausfallen. Zweckmäßigerweise verbindet das genannte Luftauslaßventil in Offenstellung dem Dampfverteiler mit der Entlüftung.the air located in the steam chambers is pressed into the bed. In this way, the proportion of steam in the bed and thus the heat conduction increased, so that the steaming and cooling times are significant be shorter. Appropriately, said air outlet valve connects to the steam distributor in the open position with the vent.
Im folgenden wird die Erfindung anhand einer Zeichnung erläutert Es zeigt in schematischer Darstellung F i g. 1 einen Querschnitt einer Vorrichtung undThe invention is explained below with reference to a drawing. It shows in a schematic representation F i g. 1 shows a cross section of a device and
Fig.2 eine Seitenansicht der Vorrichtung gemäß Fig. 1.FIG. 2 shows a side view of the device according to FIG. 1.
Die Vorrichtung dient zur Herstellung quaderförmiger Schaumstoffkörper aus mit Hilfe von Wasserdampf bläh- und versinterbaren Kunststoffteilchen, insbesondere vorgeschäumten Polystyrolteilchen. In ihrem grundsätzlichen Aufbau besteht die Vorrichtung aus einem quaderförmigen Formkasten 1 mit jeweils als Dampfkammer 2 ausgebildeten Formkastenwänden. Die einen quaderförmigen Hohlraum 3 begrenzenden Innenwandungen 4 der Formkastenwände sind perforiert ausgeführt. Die an zwei einander gegenüberliegenden, nämlich den vertikalen Längsseitenflächen liegenden Außenwandungen 5 weisen dagegen mehrere Dampfeinlaßöffnungen 6 in einer Reihe auf, die an einem Dampfverteiler 7 angeschlossen sind. Die an den beiden anderen, einander gegenüberliegenden Längsseitenflächen liegenden Außenwandungen 8 weisen entsprechend Entlüftungsöffnungen 9 auf, die an eine Entlüftung 10 angeschlossen sind. Die im einzelnen nicht dargestellten Stirnwandungen können in derselben Weise ausgebildet und an den Dampfverteiler 7 oder die Entlüftung 10 angeschlossen sein. Im Hohlraum 3 wird jedenfalls eine Schüttung der Kunststoffteilchen quaderförmig gehalten und von den beiden vertikalen Längsseitenflächen her stets gleichzeitig bedampft.The device is used to produce cuboid foam bodies with the aid of steam Expandable and sinterable plastic particles, in particular pre-expanded polystyrene particles. In your Basic structure, the device consists of a cuboid molding box 1 with each as Steam chamber 2 formed molding box walls. The delimiting a cuboid cavity 3 Inner walls 4 of the molding box walls are perforated. The two opposite, namely, the vertical longitudinal side surfaces lying outer walls 5, however, have several Steam inlet openings 6 in a row which are connected to a steam distributor 7. The Andes the other two outer walls 8 lying opposite one another, longitudinal side surfaces, have correspondingly Vent openings 9 which are connected to a vent 10. Not in detail end walls shown can be formed in the same way and to the steam distributor 7 or the Vent 10 be connected. In any case, a bed of plastic particles is cuboid in cavity 3 held and always steamed simultaneously from the two vertical long side surfaces.
Die Dampfeinlaßöffnungen 6 und auch die Entlüftungsöffnungen 9 sind mit einstellbaren VentilkörpernThe steam inlet openings 6 and also the ventilation openings 9 are provided with adjustable valve bodies
11 versehen, die in der jeweils zugeordneten Dampfkammer 2 angeordnet sind. Nicht dargestellt ist, daß die Ventilkörper 11 mit an eine gemeinsame Steuereinrichtung angeschlossenen Stelltrieben versehen sind. In F i g. 1 erkennt man jedoch wiederum, daß der Dampfverteiler 7 im Bereich seines Endabschnittes mit einem Luftauslaßventil 12 versehen ist, das in Offenstellung den Dampfverteiler 7 mit der Entlüftung 10 verbindet.11, which are arranged in the respective associated steam chamber 2. It is not shown that the Valve body 11 are provided with actuators connected to a common control device. In F i g. 1 can be seen again, however, that the steam distributor 7 in the region of its end portion with a Air outlet valve 12 is provided, which connects the steam distributor 7 to the vent 10 in the open position.
Nach Einfüllen der Kunststoff teilchen werden die Ventilkörper 11 in den Dampfeinlaßöffnungen 6 in Schließstellung gebracht und wird das LuftauslaßventilAfter filling the plastic particles, the valve body 11 in the steam inlet openings 6 in Brought closed position and is the air outlet valve
12 geöffnet Anschließend wird ein Hauptdampfventil12 opened A main steam valve is then opened
13 geöffnet, so daß die Luft im Dampfverteiler 7 durch Wasserdampf verdrängt bzw. über die Entlüftung 10 abgeführt wird. Anschließend wird das Luftauslaßventil 12 geschlossen und werden die Dampfeinlaßöffnungen 6 durch gleich weites Verstellen der Ventilkörper 11 geöffnet; das Verhältnis der beiden zugeführten Wasserdampfteilströme ist dann gleich 1, und die neutrale Zone 14, in der die beiden Wasserdampfteilströme aufeinanderstoßen, liegt dann etwa im Zentrum der Schüttung. Die Luft bzw. der Dampf in den Dampfkammern 2 und eo der Schüttung kann durch die Entlüftungsöffnungen 9 entweichen. Anschließend, d. h. bevor die Kunststoffteilchen eine geschlossene Struktur bilden, die den weiteren Dampfeintritt verhindert, wird das Verhältnis der beiden Wasserdampfteilströme durch entsprechendes Verstellen der Ventilkörper 11 in den Dampfeinlaßöffnungen 6 kontinuierlich und periodisch so verändert, daß die neutrale Zone 14 mehrfach über die gesamte13 opened so that the air in the steam distributor 7 is displaced by water vapor or via the vent 10 is discharged. Then the air outlet valve 12 is closed and the steam inlet openings 6 become by adjusting the valve body 11 to the same extent; the ratio of the two partial streams of steam supplied is then equal to 1, and the neutral zone 14, in which the two water vapor partial flows meet, then lies approximately in the center of the bed. The air or the steam in the steam chambers 2 and eo the bed can escape through the ventilation openings 9. Subsequently, d. H. before the plastic particles form a closed structure that prevents further entry of steam, the ratio of the two partial streams of steam by adjusting the valve body 11 in the steam inlet openings accordingly 6 continuously and periodically changed so that the neutral zone 14 several times over the entire
BAD ORIGINAL Breite der Schüttung hin- und hergeführt wird, wie es in F i g. 1 schema tisch angedeutet ist. Bezieht man insoweit die Ventilkörper 11 in den Entlüftungsöffnungen 9 ein, kann die neutrale Zone 14 auch in andere Richtungen bewegt werden.BAD ORIGINAL Width of the bed is reciprocated as it is in F i g. 1 is schematically indicated. If one includes the valve body 11 in the ventilation openings 9, the neutral zone 14 can also be moved in other directions.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
COPYCOPY
- Leerseite -- blank page -
BAD ORIGINAL COPYBAD ORIGINAL COPY
Claims (6)
aufeinanderstoßen, über die gesamte Breite der Der Erfindung liegt die Aufgabe zugrunde, anzuge-Schüttung hin-und hergeführt wird. 30 ben, wie man im Rahmen der gattungsgemäßen Maß-4. The method according to any one of claims 1 to 3, non-uniformity of the foam structure remains - characterized in that the ratio of the two 25 albeit in a different distribution - because the effect of the supplied water vapor partial streams is changed in one of the two successive steam parts such scope that the neutral streams, based on the two associated Randbe zone, in which the two water vapor partial streams rich in the bed, is not identical.
collide, over the entire width of the The invention is based on the object of adding the bed is guided back and forth. 30 ben how one within the scope of the generic measure
Dampfkammer ausgebildeten Formkastenwänden, Die Erfindung nutzt hierbei die Erkenntnis, daß eine deren den Hohlraum für die Schüttung begrenzende Vergleichmäßigung der Schaumstruktur nur bei gleich-Innenwandungen perforiert sind und deren an zwei, zeitiger Bedampfung der Schüttung von zwei gegenaneinander gegenüberliegenden Längsseitenflächen 40 überliegenden Seiten her, d. h. mit neutraler Zone, mögliegende Außenwandungen an einen Dampfverteilcr lieh ist, diese neutrale Zone aber nicht während der angeschlossene Dampfeinlaßöffnungen und deren gesamten Bedampfung örtlich fixiert bleiben darf, sonan den beiden anderen, einander gegenüberliegen- dem in der Schüttung hin- und herwandern muß. in den Längsseitenflächen liegende Außenwandungen vorrichtungsmäßiger Hinsicht läßt sich dieses Wandern Entlüftungsöffnungen aufweisen, dadurch gekenn- 45 ganz einfach durch entsprechende Betätigung bzw. Einzeichnet, daß zumindest die Dampfeinlaßöffnungen stellung der Ventilkörper in den Dampfeinlaßöffnungen (6) mit in der jeweils zugeordneten Dampfkammer erreichen.6. Device for performing the method in terms of the characteristics of the patent according to one of claims 1 to 5, consisting of 35 claim 1 and in terms of the device of a cuboid molding box, each as the characteristic of claim 6.
The invention makes use of the knowledge that their equalization of the foam structure, which delimits the cavity for the bed, is only perforated in the case of the same inner walls and their two, simultaneous steaming of the bed from two mutually opposite longitudinal side surfaces 40, ie with a neutral zone, possible outer walls on a steam distributor, but this neutral zone must not remain fixed in place during the connected steam inlet openings and their entire steaming, but must move to and fro in the bulk of the other two opposite one another. In terms of the device, outer walls lying in the longitudinal side surfaces can have ventilation openings, characterized by the fact that at least the steam inlet openings reach the position of the valve bodies in the steam inlet openings (6) in the respective associated steam chamber.
trieben versehen sind. Im Rahmen der bekannten Maßnahmen muß am Be-7. Apparatus according to claim 6, characterized in that the valve bodies (11) are identified by claims 2 to 5 and that the valve bodies (11) are connected to the latter with a control device connected in particular to a common control device is of particular importance
drives are provided. As part of the known measures, the
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3344746A DE3344746C1 (en) | 1983-12-10 | 1983-12-10 | Process and device for producing right parallelepipedal foam bodies from plastics particles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3344746A DE3344746C1 (en) | 1983-12-10 | 1983-12-10 | Process and device for producing right parallelepipedal foam bodies from plastics particles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3344746C1 true DE3344746C1 (en) | 1985-01-10 |
Family
ID=6216620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3344746A Expired DE3344746C1 (en) | 1983-12-10 | 1983-12-10 | Process and device for producing right parallelepipedal foam bodies from plastics particles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3344746C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103802260A (en) * | 2014-01-14 | 2014-05-21 | 兰州迅美漆业科技有限公司 | Thermal insulation material heating and foaming box |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3304329A1 (en) * | 1982-02-11 | 1983-08-11 | Basf Ag, 6700 Ludwigshafen | Process for producing foam blocks |
-
1983
- 1983-12-10 DE DE3344746A patent/DE3344746C1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3304329A1 (en) * | 1982-02-11 | 1983-08-11 | Basf Ag, 6700 Ludwigshafen | Process for producing foam blocks |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103802260A (en) * | 2014-01-14 | 2014-05-21 | 兰州迅美漆业科技有限公司 | Thermal insulation material heating and foaming box |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of patent without earlier publication of application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MUENCHOW UND HUEHNE OHG, 4100 DUISBURG, DE |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: MUENCHOW UND HUEHNE OHG, 4220 DINSLAKEN, DE |
|
8327 | Change in the person/name/address of the patent owner |
Owner name: COMMERZBANK AG, 60311 FRANKFURT, DE |
|
8339 | Ceased/non-payment of the annual fee |