WO2006128578A1 - Druckluftpistole - Google Patents
Druckluftpistole Download PDFInfo
- Publication number
- WO2006128578A1 WO2006128578A1 PCT/EP2006/004600 EP2006004600W WO2006128578A1 WO 2006128578 A1 WO2006128578 A1 WO 2006128578A1 EP 2006004600 W EP2006004600 W EP 2006004600W WO 2006128578 A1 WO2006128578 A1 WO 2006128578A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cartridge
- piston
- compressed air
- receiving space
- pressure
- Prior art date
Links
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
- B05C17/015—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 with pneumatically or hydraulically actuated piston or the like
Definitions
- the invention relates to a compressed air gun for ejecting pasty to viscous material, having the features of the preamble of claim 1.
- a pasty material in this sense, for example, a sealant, such as is used in motor vehicle crafts.
- a pasty material may also be a sealant processed in the construction industry, a lubricating grease, a surface coating or the like.
- Characteristic of a compressed air gun of the type in question is first that the processed, pasty to viscous material is in a Kartu- see that can be inserted as L agerware present in the open to the outer housing of the compressed air gun or inserted.
- the cartridge to be used usually has an outlet tip or another outlet device on a front end side. At the opposite end face is located in the cylinder jacket forming sleeve of the cartridge a cartridge piston. This is in the cylinder jacket of the cartridge in the direction of the exit tip o. The like. Advance. To achieve this, a pressurization takes place from a compressed air connection.
- the compressed air connection itself is connected, for example, to the compressed air network of a gas station or motor vehicle repair workshop. A usual network pressure is there at some bar.
- the known compressed air pistol for ejecting pasty to viscous material, from which the invention proceeds, has a receiving chamber enclosed in a pressure-tight manner when the cartridge is inserted, into which the compressed-air connection opens (US Pat. No. 4,174,068 A).
- the outer housing is connected to a handle and the compressed air connection is connected via a arranged in the handle valve assembly with an external, also located on the handle compressed air inlet (compressed air connection to a compressed air network).
- the valve arrangement can be actuated and the network pressure of the compressed air network, which is permanently present during operation at the compressed air inlet, can be minimized. dert or reduced transferred into the receiving space of the outer housing.
- the pressurization of the receiving space causes the cartridge piston in the cartridge to be advanced towards the exit tip, thus expelling the material in the cartridge from the exit tip.
- a secondary compressed air space is still provided, which allows a compressed air admixture to already leaked from the exit tip material via a secondary air nozzle.
- a similar construction is also known from other prior art (DE 41 37 801 Al). For these aspects reference may be made to the cited references, the disclosure content of which complements the disclosure of the present patent application.
- the pressure in the receiving space acts directly on the cartridge piston.
- the cartridge piston itself is the element which seals the receiving space with respect to the interior of the cartridge with the pasty or viscous material therein. At higher pressure in the receiving space, it may happen that the cartridge piston shows a leak. The compressed air entering the material affects the uniformity of the ejection of this material. This can lead to application damage.
- This intermediate piston which is guided sealed even in the receiving space and se- on the other hand pushes the cartridge piston in the cylinder jacket of the cartridge in front of him.
- This intermediate piston can also be designed as a telescopic piston (DE 41 37 801 Al).
- the effective area on which the pressure acts in the receiving space of the outer housing about the size of the surface of the cartridge piston itself.
- the intermediate piston is regularly only slightly larger than the cartridge piston.
- the output pressure that can be generated at the cartridge piston is systematically limited.
- the normal compressed air network usually only supplies a pressure of a few bar at the place of use.
- an upper pressure limit also results from the tightness requirements.
- the teaching of the present invention is therefore based on the problem of increasing the pressure acting on the cartridge discharge pressure at a compressed air gun of the type in question, without increasing the working pressure of the compressed air gun itself significantly.
- the additional piston in the compressed air cylinder outside of the actual working space the additional power piston connected to the primary driven cartridge, so to speak, connected in series, which also acts on the cartridge piston.
- the discharge pressure generated in the cartridge is substantially increased, for example doubled, at the same working pressure. Even pasty materials with high relative viscosity can then be processed quickly from the cartridge.
- FIG. 1 is a schematic representation of a first embodiment of a compressed air gun according to the invention
- FIG. 2 shows a fragmentary, schematic representation of a modified embodiment of the compressed air gun of FIG. 1, shown in the region of the handle with a valve arrangement, FIG.
- FIG. 3 a fragmentary, also schematic representation of a modified embodiment of the embodiment of FIG. 1, shown in the region of the cartridge piston.
- Such a compressed air gun is used to eject pasty to viscous material from an exit tip of a disposable material package.
- This material may be viscous adhesives, sealants, lubricants, fillers, or the like. It is essential that the ejection of pasty to viscous material by means of compressed air from a compressed air network or from another source of compressed air.
- the illustrated compressed air gun initially has an outer housing 1 which can be revealed on at least one side.
- the outer housing 1 is in the illustrated embodiment approximately cylindrically configured and on a front end wall 2 apparently.
- the end wall 2 is designed here as a screw-on end wall cover, for example. However, there are also outer cases, which are apparently on the side.
- a pressure-tight receiving space 3 for a cartridge containing the material to be ejected 4 is formed in the outer housing 1.
- a handle 5 is connected on the outer housing 1 .
- a compressed air connection 6 for the receiving space.
- the cartridge to be used 6 is inserted in the receiving space 3 of the outer housing 1.
- This cartridge 4 has an outlet end 8 on a front end 7.
- the exit tip consists of an outlet nozzle directly on the end face 7 of the cartridge 4 and a plastic tip plugged there.
- outlet nozzle which are connected to another conveyor.
- the cartridge 4 On the opposite end face 9, the cartridge 4 has a cartridge piston 10. This is in the cartridge 4, namely in the cylinder jacket 1 1 of the cartridge 4, sliding in the direction of the exit tip 8 vorschiebbar, so that from the exit tip 8, the material contained in the cartridge 4 is ejected. This is done with inserted cartridge 4 by pressurizing the receiving space 3.
- the receiving space 3 is sealed at the end wall 2 of the outer housing 1 passing through the exit tip 8, through an annular seal 12, at the front end side 7 of the cartridge 4 below axial pressure sealingly applied.
- This is one of the sealing options at this point, in the prior art here is a radial seal instead of an axial seal provided (US 4, 174.068 A).
- an additional air cylinder 13 is arranged with a slidingly displaceable therein piston 14, that the thrust piston 14 in the air cylinder 13 on the side remote from the receiving space 3 side connected to the compressed air connection 6 or connectable thrust chamber 15 forms, and that the thrust piston 14 on the cartridge 4 to side facing a power transmission element 16, in particular in the form of a piston rod, which enters via a pressure-tight passage 17 into the receiving space 3 and comes into force-bearing with inserted cartridge 4 on the cartridge piston 10.
- the thrust chamber 15 can be acted upon with increased pressure, wherein on the thrust chamber 15 opposite side of the thrust piston 14, a lower pressure, in particular ambient pressure prevails.
- the compressed air cylinder 13 is here provided with an air outlet opening 18.
- the data P 0 and Pi represent the pressure of the ambient atmosphere and the network pressure of the compressed air connection 6. The pressure difference is in most cases a few bar.
- the arrows shown in FIG. 1 show the flow path of the compressed air when pressurized and the direction of action of the pressure with respect to the individual pistons 10; 14th
- the illustrated and preferred embodiment shows that the thrust piston 14 on the opposite side of the thrust chamber 15 in the compressed air cylinder 13 forms a freewheeling chamber 19, which communicates via at least one air exchange opening 18 with the ambient atmosphere.
- the freewheeling chamber 19 is thus movement space for the thrust piston 14, without having its own pneumatic function. Overall, this ensures a closed to the outside, compact design. 5
- FIG. 1 shows a particularly interesting and preferred embodiment of a pneumatic gun according to the invention.
- the construction is made such that the pressure in the receiving space 3 acts directly on the cartridge piston 10 and yet a power transmission from the power transmission element 16 is ensured on the cartridge piston 10.
- the force transmission element 16 comes to rest, leaving at least a substantial part of the area of the cartridge piston 10 free.
- Through openings in the ejector 20 allow the compressed air in the receiving space 3 acts directly on the surface of the cartridge piston 10.
- Fig. 3 shows a variant of this, which is characterized in that the force transmission element 16 comes to cover under cover at least a substantial part of the surface of the cartridge piston 10 at this.
- the squeezer 20 i. w. over the entire surface of the cartridge piston 10 and transmits the
- the illustrated embodiment does not show in any of the variants a possibility that provides the power transmission element 16 with the squeezer 20. Namely, it can be provided that the power transmission element 16 at the cartridge piston 10 associated end is guided sealed even in the cylinder jacket 1 1 of the cartridge 4. This can be realized, for example, by a sealed guide of the ejector 20 in the cylinder jacket 1 1. This additional measure prevents the illustrated in the general part of the description leak on the cartridge piston 10 shows.
- the illustrated embodiment also shows in any of the variants a possibility that has already been mentioned in the prior art.
- the compressed air connection 6 is shown as if it were not controllable. Normally, however, this will be solved differently. Normally, it will be provided that the compressed-air connection 6 is connected to an external compressed-air inlet 22 via a valve arrangement 21, which is preferably arranged in the handle 5.
- the valve assembly 21 is actuated regularly via a manual lever or a corresponding button 23.
- the valve arrangement 21 may also comprise pressure reducers, safety valves or the like, which may also be adjustable. Reference may also be made to the introductory state of the art (DE 41 37 801 A1), the disclosure content of which is additionally included.
- Fig. 2 shows a modified embodiment, for which applies that the thrust chamber 15 is connected separately from the receiving space 3 to the compressed air connection 6 and to the valve assembly 21.
- the thrust piston 14 is only connected in terms of drive technology when a material is actually processed whose consistency or its required or desired operating speed requires a higher ejection pressure in the cartridge 4.
- the thrust chamber 15 can be connected optionally to the working pressure, possibly to a reduced pressure, or to the ambient atmosphere.
- the embodiment shown in Fig. 1 and in Fig. 3 has a different construction, which also represents an interesting variant.
- the thrust chamber 15 is pneumatically connected to the receiving space 3. This can be done by a kind of bypass line from the receiving space 3 to the thrust chamber 15 be realized.
- the illustrated and preferred embodiment is characterized in this respect by a particularly expedient construction, which is namely characterized in that the thrust chamber 15 is pneumatically connected via a pressure line 24 in the power transmission element 16, in particular in the KoI- rod, with the receiving space 3.
- a particularly elegant solution In the embodiment shown in FIG. 1, the entry into the pressure line 24 at the bottom of the ejector 20 is because the squeezer 20 itself is slightly spaced from the cartridge piston 10.
- a lateral inlet opening for the pressure line 24 is provided in the force transmission element 16 forming piston rod.
- the handle 5 is removable from the outer housing 1. This is a measure known from the prior art, which makes it possible to use alternative drive systems. This is a kind of modular system realized.
- the outer housing 1 is cylindrical and on the end wall 2 is apparent. It has already been pointed out that the end wall 2 can be designed as a screw-on lid, for example.
- the jacket of the air cylinder 13 is made in one piece with the jacket of the outer housing 1.
- the jacket could be designed as a one-piece molded plastic molding. This would have in the middle wall, which forms the rear end wall of the outer housing 1, the bushing 17 and would each be sealingly closed at the end walls by appropriate cover.
- the illustrated and preferred embodiment further shows a special construction which serves to equalize the pressure on the cylinder jacket 1 1 of the cartridge 4.
- the cartridge 4 can be designed with a thinner cylinder jacket 11 or a cylinder jacket 11 made of a less resistant material, possibly even of cardboard. regardless of which one can generate a high pressure inside the cartridge 4, which does not lead to a bursting of the cartridge 4.
- this is also provided here that when inserted cartridge 4 between the cylinder jacket 1 1 of the cartridge 4 and the jacket 25 of the outer housing 1, an annular space 26 remains in which the pressure prevails in the receiving space 3 , If the intermediate piston described above as a variant is provided, then one must make a corresponding detour line for this pressure equalization.
- FIG. 1 Another interesting construction is realized in the receiving space 3 of the pneumatic gun shown in Fig. 1. It is envisaged that in the receiving space 3 at the opposite end of the end wall 2, a support 27 for the rear end face 9 of the inserted cartridge 4, in particular in the form of a rippenför- mig trained or pierced support sleeve is provided. By this support 27, the cartridge 4 can be properly positioned and clamped with respect to the front end wall 2 of the outer housing 1, so that the axial seal 12 is on the end wall 2 under the necessary sealing pressure to achieve the working pressure in the receiving space 3 can defined.
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- Coating Apparatus (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials For Medical Uses (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE502006002826T DE502006002826D1 (de) | 2005-06-03 | 2006-05-16 | Druckluftpistole |
EP06753637A EP1885508B1 (de) | 2005-06-03 | 2006-05-16 | Druckluftpistole |
AU2006254407A AU2006254407B2 (en) | 2005-06-03 | 2006-05-16 | Compressed-air gun |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202005008831.5 | 2005-06-03 | ||
DE202005008831U DE202005008831U1 (de) | 2005-06-03 | 2005-06-03 | Druckluftpistole |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006128578A1 true WO2006128578A1 (de) | 2006-12-07 |
Family
ID=36754330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2006/004600 WO2006128578A1 (de) | 2005-06-03 | 2006-05-16 | Druckluftpistole |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1885508B1 (de) |
AT (1) | ATE422400T1 (de) |
AU (1) | AU2006254407B2 (de) |
DE (2) | DE202005008831U1 (de) |
WO (1) | WO2006128578A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009007116A1 (de) | 2009-02-02 | 2010-08-05 | Henkel Ag & Co. Kgaa | Behälter mit Ventil |
DE102009011178A1 (de) | 2009-03-04 | 2010-09-16 | Henkel Ag & Co. Kgaa | Reparaturdüse |
DE102008047234B4 (de) | 2008-09-12 | 2018-12-06 | Henkel Ag & Co. Kgaa | Reparaturdüse und Reparatursystem |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2696542T3 (es) | 2009-02-06 | 2019-01-16 | Tecres Spa | Unidad de suministro para un mezclador de compuestos bifásicos |
FR2998200B1 (fr) * | 2012-11-21 | 2014-11-28 | Alexis Albin | Dispositif de depose de colle |
DE102013207021A1 (de) | 2013-04-18 | 2014-10-23 | Henkel Ag & Co. Kgaa | Adapter für eine Ausgabevorrichtung |
FR3069466B1 (fr) * | 2017-07-27 | 2020-09-18 | Supratec | Dispositif de distribution d'un produit visqueux |
DE102017214835B4 (de) * | 2017-08-24 | 2021-11-04 | BSH Hausgeräte GmbH | Druckkopf und Verfahren zur Extrusion von Druckmasse aus einer Nahrungsmittel-Kartusche |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057521A (en) * | 1960-09-06 | 1962-10-09 | Herman E Ballard | Heavy-grease dispenser |
US4174068A (en) | 1978-11-07 | 1979-11-13 | Rudolph Robert L | Gun having disposable cartridge |
DE9212015U1 (de) * | 1991-11-16 | 1992-11-26 | Deutsche Tecalemit Gmbh, 4800 Bielefeld | Druckluftpistole zum Auftragen von pastösem Material |
EP0537550A1 (de) * | 1991-10-16 | 1993-04-21 | DEUTSCHE TECALEMIT GmbH | Druckluftpistole zum Auftragen von pastösem Material |
DE4137801A1 (de) | 1991-11-16 | 1993-05-19 | Tecalemit Gmbh Deutsche | Druckluftpistole zum auftragen von pastoesem material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8028881U1 (de) * | 1980-10-30 | 1981-04-02 | Roland, Otto, 8752 Kleinostheim | Dichtungspistole mit doppelkolben |
DE59100594D1 (de) * | 1990-04-10 | 1993-12-23 | Wilhelm A Keller | Austraggerät zur Bedienung von Doppelkartuschen. |
US5181636A (en) * | 1990-12-14 | 1993-01-26 | Milbar Corporation | Incremental dispensing device |
DE4315761A1 (de) * | 1993-05-11 | 1994-11-17 | Jonsdorf Maschbau Gmbh | Vorrichtung zum Beleimen von Löchern |
DE29519348U1 (de) * | 1995-12-06 | 1996-02-15 | Ritter, Ralf, 86836 Untermeitingen | Pneumatische Kartuschenauspreßvorrichtung |
-
2005
- 2005-06-03 DE DE202005008831U patent/DE202005008831U1/de not_active Expired - Lifetime
-
2006
- 2006-05-16 DE DE502006002826T patent/DE502006002826D1/de active Active
- 2006-05-16 WO PCT/EP2006/004600 patent/WO2006128578A1/de active Application Filing
- 2006-05-16 AU AU2006254407A patent/AU2006254407B2/en active Active
- 2006-05-16 AT AT06753637T patent/ATE422400T1/de active
- 2006-05-16 EP EP06753637A patent/EP1885508B1/de active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057521A (en) * | 1960-09-06 | 1962-10-09 | Herman E Ballard | Heavy-grease dispenser |
US4174068A (en) | 1978-11-07 | 1979-11-13 | Rudolph Robert L | Gun having disposable cartridge |
EP0537550A1 (de) * | 1991-10-16 | 1993-04-21 | DEUTSCHE TECALEMIT GmbH | Druckluftpistole zum Auftragen von pastösem Material |
DE9212015U1 (de) * | 1991-11-16 | 1992-11-26 | Deutsche Tecalemit Gmbh, 4800 Bielefeld | Druckluftpistole zum Auftragen von pastösem Material |
DE4137801A1 (de) | 1991-11-16 | 1993-05-19 | Tecalemit Gmbh Deutsche | Druckluftpistole zum auftragen von pastoesem material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008047234B4 (de) | 2008-09-12 | 2018-12-06 | Henkel Ag & Co. Kgaa | Reparaturdüse und Reparatursystem |
DE102009007116A1 (de) | 2009-02-02 | 2010-08-05 | Henkel Ag & Co. Kgaa | Behälter mit Ventil |
DE102009011178A1 (de) | 2009-03-04 | 2010-09-16 | Henkel Ag & Co. Kgaa | Reparaturdüse |
Also Published As
Publication number | Publication date |
---|---|
AU2006254407B2 (en) | 2010-05-27 |
EP1885508A1 (de) | 2008-02-13 |
ATE422400T1 (de) | 2009-02-15 |
DE202005008831U1 (de) | 2006-10-12 |
DE502006002826D1 (de) | 2009-03-26 |
AU2006254407A1 (en) | 2006-12-07 |
EP1885508B1 (de) | 2009-02-11 |
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