DE2531322B1 - AS EXPRESSION PISTON FOR TOUGH PLASTIC MASSES A BOTTOM SEAL MADE OF ELASTIC MATERIAL FOR A HOLLOW CYLINDER EXTRUDED CONTAINER - Google Patents
AS EXPRESSION PISTON FOR TOUGH PLASTIC MASSES A BOTTOM SEAL MADE OF ELASTIC MATERIAL FOR A HOLLOW CYLINDER EXTRUDED CONTAINERInfo
- Publication number
- DE2531322B1 DE2531322B1 DE2531322A DE2531322A DE2531322B1 DE 2531322 B1 DE2531322 B1 DE 2531322B1 DE 2531322 A DE2531322 A DE 2531322A DE 2531322 A DE2531322 A DE 2531322A DE 2531322 B1 DE2531322 B1 DE 2531322B1
- Authority
- DE
- Germany
- Prior art keywords
- wall
- container
- extrusion container
- hollow piston
- bottom seal
- 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
- 239000013013 elastic material Substances 0.000 title claims description 9
- 238000001125 extrusion Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 238000009423 ventilation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
- B05C17/00579—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container comprising means for allowing entrapped air to escape to the atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00576—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes characterised by the construction of a piston as pressure exerting means, or of the co-operating container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/76—Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Closures For Containers (AREA)
Description
Die Führung des Bodenverschlusses an der Innenwand des Strangpreßbehälters ist luftdurchlässig, so daß die Luft ganz nach außen entweichen kann. Durch die reibschlüssige Anlage der Scheitel der koaxialen Ringe ergibt sich eine Vorspannung der Schraubengänge gegenüber der Innenwand des Strangpreßbehälters und damit ein verhältnismäßig hoher spezifischer Druck der Scheitel der Schraubengänge auf die Innenwand des Strangpreßbehälters. Dadurch werden die gegebenenfalls an der Innenwand des Strangpreßbehälters noch anhaftenden Reste der zähplastischen Masse einwandfrei abgestreift. Am Ende des Einsetzvorgangs und auch bei der Verwendung des Bodenverschlusses als Ausdrückkolben am Gebrauchsort kann die plastische Masse um ein geringes, jedoch ausreichendes Maß in den Zwischenräumen zwischen den koaxialen Ringen über die Aussparungen aufsteigen und daher die vollständige Abdichtung gewährleisten. Der freieThe guide of the bottom closure on the inner wall of the extrusion container is air-permeable, so that the air can escape completely to the outside. Through the frictional engagement of the apex of the coaxial rings results in a preload the screw threads opposite the inner wall of the extrusion container and thus a relatively high specific pressure of the crests of the screw threads on the Inner wall of the extrusion container. This will, if necessary, on the inner wall of the extrusion container still adhering residues of the viscoplastic mass perfectly stripped. At the end of the insertion process and also when using the bottom seal As an ejection piston at the place of use, the plastic mass can be reduced by a small amount, however sufficient measure in the spaces between the coaxial rings over the recesses rise and therefore ensure complete sealing. The free one
Querschnitt zwischen den Ringen und den Aussparungen und/oder der Druck zum Einsetzen oder Ausdrükken können je nach der Viskosität der plastischen Masse gewählt werden, um das Maß des Aufsteigens in den Zwischenräumen und Aussparungen und damit die Dichtwirkung zu bestimmen. Querschnitt und Anzahl der koaxialen Ringe und der zueinander versetzten Aussparungen können jederzeit so gewählt werden, daß infolge des geringen freien Querschnitts zwischen den Ringen und des daraus resultierenden Wide: standes die zähplastische Masse sicher daran gehindert wird, alle Zwischenräume und Aussparungen zu durchsteigen. Es hat sich gezeigt, daß die erforderlichen Losbrechkräfte für den so gebildeten Ausdrückkolben sehr gering sind.Cross section between the rings and the recesses and / or the Pressure for insertion or removal can vary depending on the viscosity of the plastic Measures are chosen to be the amount of ascent in the gaps and recesses and thus to determine the sealing effect. Cross-section and number of coaxial rings and the mutually offset recesses can be chosen at any time so that due to the small free cross-section between the rings and the resulting Wide: the viscoplastic mass stands securely from all gaps and to climb through recesses. It has been shown that the required breakaway forces are very low for the ejector piston formed in this way.
Die Dichtwirkung einerseits sowie die Durchlaß- oder Aufsteigwirkung andererseits kann nach einer Ausführungsform der Erfindung dadurch variiert und beeinflußt werden, daß die koaxialen Ringe in Umfangsrichtung wellen- oder zickzackförmig ausgebildet sind. The sealing effect on the one hand as well as the passage or ascending effect on the other hand, according to one embodiment of the invention, this can vary and be influenced that the coaxial rings are wavy or zigzag in the circumferential direction are trained.
Hierdurch läßt sich der Durchlaßwiderstand zwischen den koaxialen Ringen sicher beeinflussen und wählen, wobei die Anzahl und die Querschnittsfläche der jeweiligen Aussparungen entsprechend bemessen werden können In weiterer Ausbildung der Erfindung sind die Aussparungen zweckmäßig in Scheiteln der wellen-oder zickzackförmigen Ringe angeordnet.This allows the forward resistance between the coaxial Rings safely influence and choose, taking the number and cross-sectional area the respective recesses can be dimensioned accordingly In further training According to the invention, the recesses are expediently in the vertices of the wave-shaped or zigzag-shaped ones Rings arranged.
Die Erfindung wird anhand zweier Ausführungsbeispiele erläutert, die in der Zeichnung dargestellt sind. Es zeigen: F i g. 1 in Seitenansicht einen als Ausdrückkolben dienenden Bodenverschluß nach der Erfindung, F i g. 2 die Draufsicht auf den Bodenverschluß nach Fig. 1, F i g. 3 den Bodenverschluß nach F i g. 1 in vergrößertem Maßstab, Fig. 4 eine F i g. 1 entsprechende Ansicht einer zweiten Ausführungsform eines Bodenverschlusses nach der Erfindung, F i g. 5 die Draufsicht auf den Bodenverschluß nach Fig.4, F i g. 6 den Bodenverschluß nach F i g. 4 in vergrößertem Maßstab. The invention is explained using two exemplary embodiments, which are shown in the drawing. It shows: F i g. 1 in side view serving as a plunger bottom closure according to the invention, F i g. 2 the top view on the bottom closure according to FIG. 1, F i g. 3 the bottom seal according to FIG. 1 in enlarged scale, FIG. 4 a FIG. 1 corresponding view of a second embodiment a bottom closure according to the invention, FIG. 5 the top view of the bottom closure according to Figure 4, F i g. 6 the bottom seal according to FIG. 4 on an enlarged scale.
In der Zeichnung ist der den erfindungsgemäßen Bodenverschluß aufnehmende Strangpreßbehälter bzw. In the drawing is the receiving the bottom closure according to the invention Extrusion container or
die Kartusche zur Vereinfachung nicht dargestellt.the cartridge is not shown for the sake of simplicity.
Der in F i g. I und 4 dargestellte, als Ausdrückkolben dienende Bodenverschluß 11 bzw. 21 besteht aus elastischem Werkstoff, insbesondere aus elastischem Kunststoff. Der Bodenverschluß 11 bzw. 21 weist jeweils einen zum Vorratsraum des zu verschließenden Strangpreßbehälers für eine zähplastische Masse konvex, nämlich kegelförmig ausgewölbten Verschlußteller 14 bzw. 24 sowie einen sich in Richtung auf die Einfüllöffnung des nicht dargestellten Strangpreßbehälters erstreckenden Hohlkolbenabschnitt 12 bzw. 22 auf. The in F i g. I and 4 shown, serving as an ejector piston 11 or 21 is made of elastic material, in particular of elastic plastic. The bottom closure 11 or 21 each has one to the storage space of the to be closed Extruded container for a viscoplastic mass convex, namely convex conically Closure plate 14 and 24 and one in the direction of the filling opening of the not shown extrusion container extending hollow piston section 12 or 22 on.
An seinem zum Verschlußteller 4 gerichteten Ende ist der Hohlkolbenabschnitt 12 bzw. 22 mit Dichtungsmit- teln für die plastische Masse versehen, wie in jeweils unterschiedlicher Ausführung die Ausführungsbeispiele zeigen.At its end facing the closure plate 4 is the hollow piston section 12 or 22 with sealing for the plastic mass, as in each case different execution show the embodiments.
Es sind die Dichtungsmittel bei dem Ausführungsbeispiel nach F i g. 1 bis Fig. 3 als mehrere in Kolbenlängsrichtung hintereinander und auf der Außenwand des Hohlkolbenabschnitts 12 verlaufende, aus dessen elastischem Werkstoff geformte koaxiale Ringe 13 ausgebildet, deren Scheitel sich reibschlüssig an der Innenwand des nicht dargestellten Strangpreßbehälters anlegen. Zwischen den koaxialen Ringen 13 sind somit umlaufende Zwischenräume 15 gebildet. Diese umlaufenden Zwischenräume 15 sind bei dem Ausführungsbeispiel über jeweils drei auf dem Umfang verteilt angeordnete Aussparungen 16 in den koaxialen Ringen 13 miteinander sowie mit dem anschließenden Ringraum zwischen dem Hohlkolbenabschnitt 12 und der Innenwand des nicht dargestellten Strangpreßbehälters verbunden. Es sind dabei die Aussparungen 16 der einzelnen koaxialen Ringe 13 in Umfangsrichtung gegeneinander versetzt, wie insbesondere F i g. 3 zeigt. There are the sealing means in the embodiment according to F i G. 1 to 3 as several in the piston longitudinal direction one behind the other and on the outer wall of the hollow piston section 12, formed from the elastic material thereof formed coaxial rings 13, the apex of which is frictionally engaged on the inner wall of the extrusion container, not shown, create. Between the coaxial rings 13 circumferential spaces 15 are thus formed. These circumferential spaces 15 are in the embodiment over three arranged distributed on the circumference Recesses 16 in the coaxial rings 13 with each other and with the subsequent Annular space between the hollow piston section 12 and the inner wall of the not shown Extrusion connected. There are the recesses 16 of the individual coaxial Rings 13 offset from one another in the circumferential direction, as in particular FIG. 3 shows.
Somit kann die beim Einsetzen des Ausdrückkolbens vor der eingefüllten plastischen Masse liegende Luft durch die Aussparungen 16 und die Zwischenräume 15 entweichen, und es kann in jeweils gewünschtem Ausmaß beim Ende des Einsetzvorgangs und bei späterer Betätigung des Ausdrückkolbens die plastische Masse in gewünschtem Ausmaß durch die Aussparungen 16 in die ringförmigen Zwischenräume 15 aufsteigen, wobei durch die Versetzung der Aussparungen 16 und deren Anzahl sowie Durchlaßquerschnitt der jeweils gewünschte Widerstand bemessen werden kann.Thus, when inserting the ejector piston before the filled plastic mass lying air through the recesses 16 and the spaces 15 escape, and it can in each case desired extent at the end of the insertion process and when the ejector piston is operated later, the plastic mass is as desired Extent ascend through the recesses 16 into the annular spaces 15, whereby by the offset of the recesses 16 and their number and passage cross-section the resistance desired in each case can be measured.
Beim Ausführungsbeispiel nach F i g. 4 und 6 sind ebenfalls als Dichtungsmittel mehrere in Kolbenlängsrichtung hintereinander und auf der Außenwand des Hohlkolbenabschnitts 22 verlaufende, aus dessen elastischem Werkstoff geformte koaxiale Ringe 23 vorgesehen. Diese koaxialen Ringe sind jedoch wellen-oder zickzackförmig ausgebildet, wie F i g. 4 und F i g. 6 beispielsweise zeigen. Es werden dadurch mäanderförmige Zwischenräume 25 zwischen den koaxialen Ringen 23 gebildet. Bei dem Ausführungsbeispiel nach F i g. 4 bis 6 sind ferner in Scheiteln der koaxialen Ringe 23 auf dem Umfang gegeneinander versetzt Aussparungen 26 vorgesehen, die die gleiche Wirkung wie die Aussparungen 16 im erstgeschilderten Ausführungsbeispiel haben. In the embodiment according to FIG. 4 and 6 are also used as sealants several in the longitudinal direction of the piston one behind the other and on the outer wall of the hollow piston section 22 extending coaxial rings 23 formed from the elastic material thereof are provided. However, these coaxial rings are wave-shaped or zigzag-shaped, as in F. i g. 4 and FIG. 6 show for example. This creates meandering spaces 25 formed between the coaxial rings 23. In the embodiment according to F i g. 4 to 6 are also in vertices of the coaxial rings 23 on the circumference against one another offset recesses 26 are provided, which have the same effect as the recesses 16 in the first-described embodiment.
Auch bei diesem Ausführungsbeispiel werden jeweils drei auf dem Umfang verteilte Aussparungen 26 als Durchlässe vorgesehen. Es kann aber die Anordnung und die Zahl der Aussparungen auch unterschiedlich in den einzelnen koaxialen Ringen 23 bzw. 13 vorgesehen werden, um den jeweils gewünschten Durchtrittswiderstand für die zähplastische Masse vorzugeben. Auch hier ist eine weitere Variation durch die Bemessung und Anzahl der koaxialen Ringe 23 sowie deren Wellen-oder Zickzackgestalt und Abstände möglich.In this embodiment, too, there are three on the circumference distributed recesses 26 provided as passages. But it can be the arrangement and the number of recesses also varies in the individual coaxial rings 23 or 13 are provided in order to achieve the desired flow resistance for to specify the viscoplastic mass. Again, there is another variation by the Dimensioning and number of the coaxial rings 23 and their wave or zigzag shape and distances possible.
Claims (3)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752531322 DE2531322C2 (en) | 1975-07-12 | Bottom closure made of elastic material and serving as an ejection piston for viscoplastic masses for a hollow cylindrical extrusion container | |
CH1067175A CH598070A5 (en) | 1974-09-04 | 1975-08-15 | |
GB3469175A GB1475430A (en) | 1974-09-04 | 1975-08-20 | Piston head for sealing and expelling plastic material from an extrusion press container |
FR7526019A FR2283829A1 (en) | 1974-09-04 | 1975-08-22 | ELASTIC MATERIAL SHUTTER SERVING AS A PLASTIC EJECTION PISTON FOR A CYLINDRICAL EXTRUDER CONTAINER |
IT69179/75A IT1047153B (en) | 1974-09-04 | 1975-09-01 | CLOSING DEVICE FOR A CABLE CYLINDER DIRECT EXTRUSION CONTAINER |
NLAANVRAGE7510379,A NL170257C (en) | 1974-09-04 | 1975-09-03 | CLOSING DEVICE WHICH MAY SERVICE AS A PRESSURE PISTON FOR A PLASTIC MASS IN A HOLLOW CYLINDRICAL STRING PRESS HOLDER. |
DK395475A DK152913C (en) | 1974-09-04 | 1975-09-03 | BOTTLES OF ELASTIC MATERIAL FOR A HOLY CYLINDRIC STRESS PRESSURE CONTAINER USING AS EXPRESSION STAMP FOR PLASTIC MASSES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742442354 DE2442354C3 (en) | 1974-09-04 | Bottom closure made of elastic material and serving as an ejection piston for viscoplastic masses for a hollow cylindrical extrusion container | |
DE19752531322 DE2531322C2 (en) | 1975-07-12 | Bottom closure made of elastic material and serving as an ejection piston for viscoplastic masses for a hollow cylindrical extrusion container |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2531322B1 true DE2531322B1 (en) | 1977-01-13 |
DE2531322C2 DE2531322C2 (en) | 1977-09-01 |
Family
ID=
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9311227U1 (en) * | 1993-07-27 | 1993-09-16 | Alcan Deutschland GmbH, 37075 Göttingen | Ejection piston for a hollow cylindrical storage container made of aluminum with a lid-side closure part with a discharge opening for heavily diffusing substances |
DE9319019U1 (en) * | 1993-12-11 | 1994-01-27 | Upat Gmbh & Co, 79312 Emmendingen | Discharge cartridge |
WO1999036188A1 (en) * | 1998-01-15 | 1999-07-22 | Eugen Prestele | Deaerating device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9311227U1 (en) * | 1993-07-27 | 1993-09-16 | Alcan Deutschland GmbH, 37075 Göttingen | Ejection piston for a hollow cylindrical storage container made of aluminum with a lid-side closure part with a discharge opening for heavily diffusing substances |
DE9319019U1 (en) * | 1993-12-11 | 1994-01-27 | Upat Gmbh & Co, 79312 Emmendingen | Discharge cartridge |
WO1999036188A1 (en) * | 1998-01-15 | 1999-07-22 | Eugen Prestele | Deaerating device |
Also Published As
Publication number | Publication date |
---|---|
DK152913C (en) | 1988-12-05 |
GB1475430A (en) | 1977-06-01 |
FR2283829A1 (en) | 1976-04-02 |
NL170257C (en) | 1982-10-18 |
DK395475A (en) | 1976-03-05 |
FR2283829B1 (en) | 1981-01-02 |
NL170257B (en) | 1982-05-17 |
DK152913B (en) | 1988-05-30 |
NL7510379A (en) | 1976-03-08 |
IT1047153B (en) | 1980-09-10 |
CH598070A5 (en) | 1978-04-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8340 | Patent of addition ceased/non-payment of fee of main patent |