EP2295152B1 - Dispositif de compression - Google Patents

Dispositif de compression Download PDF

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Publication number
EP2295152B1
EP2295152B1 EP10173372.3A EP10173372A EP2295152B1 EP 2295152 B1 EP2295152 B1 EP 2295152B1 EP 10173372 A EP10173372 A EP 10173372A EP 2295152 B1 EP2295152 B1 EP 2295152B1
Authority
EP
European Patent Office
Prior art keywords
piston rod
stripping
housing
stripping element
edge
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.)
Active
Application number
EP10173372.3A
Other languages
German (de)
English (en)
Other versions
EP2295152A2 (fr
EP2295152A3 (fr
Inventor
Rainer Strobel-Schmidt
Peter Ostermeier
Christian Hefele
Hans Peter Lederle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP2295152A2 publication Critical patent/EP2295152A2/fr
Publication of EP2295152A3 publication Critical patent/EP2295152A3/fr
Application granted granted Critical
Publication of EP2295152B1 publication Critical patent/EP2295152B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05C17/0052—Accessories therefor
    • 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
    • B05C17/00553—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 means allowing the stock of material to consist of at least two different components
    • 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
    • B05C17/01—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 manually mechanically or electrically actuated piston or the like
    • B05C17/0116—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 manually mechanically or electrically actuated piston or the like characterised by the piston driving means
    • B05C17/012—Stepwise advancing mechanism, e.g. pawl and ratchets
    • B05C17/0123—Lever actuated
    • B05C17/0126—Lever actuated comprising an element, e.g. an arc compensating element, articulated at one end on the lever and at the other end on the piston rod driving means, e.g. a pawl
    • 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 squeezing device for mass-containing container, referred to in the preamble of claim 1. Art.
  • Containers include, for example cartridges with one or more receiving spaces for one or more components of the mass to be applied, the direct or z.
  • B. in foil bags are provided in the receiving spaces of the cartridge.
  • the term "container” also includes foil bags filled with one or more components of the mass to be delivered, which are inserted into a separate receiving body or arranged on the ejection device.
  • a feed mechanism acts on the at least one piston rod, so that it is advanced over a predetermined amount.
  • a pressure piston arranged on the piston rod acts on the mass located in the container, so that with each advance of the piston rod, a corresponding quantity of the mass is discharged through an outlet opening.
  • the squeezing device is mechanically, for. B. via an actuating lever, electrically or by means of a fluid such. B. compressed air or hydraulic oil operated.
  • a squeezing device for mass-containing container which has a relation to the receiving space displaceable piston rod and a squeezing device, which comprises a feed mechanism for the advancement of the piston rod,
  • a disadvantage of the known solution is that adhering to the piston rod contaminants, eg. As mortar residues, when advancing the piston rod or retracting the same can get into the feed mechanism. These Contamination or soiling can damage the feed mechanism or even destroy it. This reduces the life of the squeezing device.
  • a generic Auspressvortechnische for mass-containing container with a receiving space for the container, with at least one displaceable relative to the receiving space piston rod and with a squeezing device which comprises a feed mechanism for advancing the at least one piston rod, wherein at least one scraper element with at least one of the at least one piston rod is provided facing away from the scraper edge is DE 198 45 685 A1 known.
  • the US 5,191,672 A discloses a cleaning device for a shaft with a thread.
  • the object of the invention is to provide a squeezing device for mass-containing container, which does not have the aforementioned disadvantages and has a higher serviceability in comparison with the known squeezing.
  • An inventive squeezing device is characterized in that the at least one piston rod is provided on at least one side with a toothing and the toothing facing portion of the at least one wiping edge of the at least one stripping element is provided with a recess.
  • the at least one stripping element is advantageously made of a metal or plastic with sufficient material properties for this application.
  • the preferably sharp-edged scraping edge of at least a stripping element is advantageously arranged at a small distance from the at least one piston rod, so that the stripping edge does not bear permanently on the corresponding piston rod. This prevents undesirable abrasion on the piston rod. Since the now better protected feed mechanism is subjected to a lower wear compared to the feed mechanisms of conventional Auspressvorraumen, the life of the inventive extrusion press increases significantly.
  • the at least one stripping element is advantageously a separate element, which is provided in addition to the other elements and parts of the extrusion device.
  • the feed mechanism comprises drive means which cooperate with the piston rod and which can be actuated by mechanical, electrical or fluidic means.
  • the drive means comprises a clamping block as a feed element, which can be actuated for a feed of the at least one piston rod via a lever device.
  • the drive means comprises a drive wheel, for.
  • a friction wheel or a gear the z for a feed of the at least one piston rod on the press-out. B. is displaceable by means of a motor in rotation. If the drive wheel is driven by a motor, Advantageously, a transmission, such as a planetary gear, provided in the drive train between the engine and the drive wheel.
  • the wiping edge of the at least one wiping element extends over a majority of the cross-sectional circumference of the at least one piston rod, whereby a large amount of adhering to the at least one piston rod contaminants during advancement or retraction of the at least one piston rod is removed.
  • the wiper edge of the at least one wiper element completely surrounds the cross-sectional circumference of the at least one piston rod.
  • z. B. rectangular cross section surrounds the wiping edge of the at least one stripping element on at least two, advantageously on at least three sides of the piston rod cross-section.
  • the scraping edges is formed in a piston rod with a polygonal cross section, for example by a U-shaped, open to an edge of the stripping element recess or by a circumferentially closed, polygonal recess, which is advantageously similar to the configuration of the polygonal cross section of the at least one piston rod in the stripping ,
  • the at least one piston rod is provided on at least one side with a toothing and the toothing facing the wiping edge of the at least one stripping element is provided with a recess.
  • a toothing with elevations or depressions or a perforation in the piston rod in which engage the drive means of the feed mechanism, burrs.
  • a housing for receiving at least a portion of the feed mechanism comprising at least one housing wall with a passage opening for the at least one piston rod, and wherein the at least one stripping element is provided in the at least one housing wall.
  • the at least one stripping element penetration of contaminants in the housing and thus in the feed mechanism of the ejection device can be prevented in an advantageous manner and the at least one stripping element can be easily arranged on the extrusion device.
  • the at least one stripping element can be provided directly at or spaced from the at least one housing wall.
  • the housing has at least two mutually opposite housing walls which delimit a receiving space for at least part of the feed mechanism, each of the housing walls each having a passage opening for the at least one piston rod.
  • the receiving space for the feed mechanism is limited on both sides with respect to the longitudinal extent of the at least one piston rod.
  • the at least one stripping element is advantageously provided in accordance with the expected largest accumulation of dirt on the squeezing device.
  • the at least one stripping element is provided on the side of the at least one housing wall facing away from the advancing mechanism, whereby contaminants adhering to the at least one piston rod during advancement or retraction thereof are removed outside the receiving space or outside the feed mechanism.
  • the at least one stripping element is provided on the feed mechanism side facing the at least one housing wall, which are removed at the at least one piston rod adhering contaminants during advancement or retraction thereof within the receiving space or adjacent to the feed mechanism.
  • At least two stripping elements are provided for the at least one piston rod, whereby contaminants adhering to the at least one piston rod during advancement or retraction thereof are removed from the at least one piston rod at at least two mutually spaced locations ,
  • At least one outlet opening is provided on the housing for removing contaminants from the housing.
  • contaminants such. As mortar residues, can be easily removed from this and then can no longer damage the feed mechanism.
  • a perforated piston rod are also in the perforations dirt, which in the penetration of elements of the drive means, for. As the teeth of a gear, are pushed out of these. If the contaminants removed from the at least one piston rod or pushed out of it remain in the receiving space of the housing, they could damage the feed mechanism and / or hinder the extrusion process.
  • a receiving space for receiving the removed or expelled contaminants is provided within the housing, which is, if necessary, emptied.
  • the in the FIGS. 1 to 3 illustrated squeezing device 11 for mass-containing container has a receiving space 12 for the container, a relative to the receiving space 12 displaceable piston rod 13 and a mechanically actuated squeezing device 16.
  • a pressure piston 14 is provided for acting on the container.
  • the squeezing device 11 further comprises a housing 17 with two housing walls 18 and 19 opposite one another, which delimit a receiving space 20 for at least part of a feed mechanism 21 of the squeezing device 16.
  • Each of the housing walls 18 and 19 each has a passage opening 22 or 23 for the piston rod 13.
  • a scraper element 26 is provided with a scraper edge 27 which extends over a majority of the cross-sectional circumference of the piston rod 13.
  • the wiping edge 27 is advantageously formed sharp-edged. In this embodiment, stripping edge extends over an angular range of about 270 °.
  • a plurality of outlet openings 24 for removing impurities from the housing 17 are provided on the housing 17.
  • a piston rod 33 designed as a perforated rack is shown with a rectangular cross section and a stripping element 36 with a stripping edge 37, which surrounds the cross section of the piston rod 33 on three sides.
  • the wiping edge 37 is formed by a U-shaped, open to a side edge recess in the stripping element 36.
  • FIGS. 5 and 6 is shown in section the squeezing device 41, the two piston rods 43 and a housing 47 having two opposite housing walls 48 and 49 has.
  • the housing walls 48 and 49 define a receiving space 50 for a part of the feed mechanism 51 of the ejection device 46 and each have two passage openings 52 and 53 for the piston rods 43. Further, a plurality of outlet openings 54 for removing impurities from the housing 47 are provided on the housing 47.
  • a scraper 61 is provided on the housing wall 48.
  • a further stripping element 66 can also be provided on the side of the housing wall 48 facing the receiving space 50 or the advancing mechanism 51, which is shown here in dashed lines and, for example, the same as the stripping element 61 arranged on the outside.
  • the stripping element 61 and / or 66 is arranged adjacent to the passage openings 52 for the piston rods 43.
  • the stripping element 61 and / or 66 is arranged here directly on the housing wall 48, but may also be arranged at a distance therefrom.
  • the piston rods 43 have z. B. on their sides facing each other a toothing 44.
  • the toothing 44 facing portion of the advantageous sharp-edged Abstreifkanten 62 is provided with a recess 63 each.
  • a scraper 71 is provided on the housing wall 48, which is advantageously the same as the scraper 61 formed on the Gescoüsewand 48.
  • a stripping element 76 may also be provided on the side of the housing wall 49 facing the receiving space 50 or the advancing mechanism 51, which is shown here in dashed lines and, for example, the same as the scraper element 71 arranged on the outside or the scraper element 66 arranged on the inside ,
  • the stripping element 71 and / or 76 is arranged adjacent to the passage openings 53 for the piston rods 43.
  • the stripping element 71 and / or 76 is here arranged directly on the housing wall 49, but may also be arranged at a distance from it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Cleaning In General (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Coating Apparatus (AREA)
  • Reciprocating Pumps (AREA)

Claims (7)

  1. Dispositif d'extraction par pression (11) pour un conteneur contenant des composés ayant une chambre de réception (12) pour le conteneur, comportant au moins une tige de piston (13 ; 43) mobile par rapport à la chambre de réception (12) et des moyens d'extraction par pression (16 ; 46) incluant un mécanisme d'avance (21 ; 51) pour faire avancer la au moins une tige de piston (13 ; 33 ; 43), dans lequel au moins un élément racleur (26 ; 36 ; 61, 66, 71, 76) est prévu avec au moins un bord racleur (27 ; 37 ; 62) dirigé vers la au moins une tige de piston (13 ; 33 ; 43),
    caractérisé en ce que
    ladite au moins une tige de piston (43) est munie d'une denture (44) sur au moins un côté, et la partie dirigée vers la denture (44) dudit au moins un bord racleur (62) dudit au moins un élément racleur (61) est munie d'un évidement (63).
  2. Dispositif d'extraction par pression selon la revendication 1, caractérisé en ce que le bord racleur par pression (27 ; 37 ; 62) dudit au moins un élément racleur (26 ; 36 ; 61, 66, 71, 76) s'étend au-dessus d'une grande partie de la circonférence de section transversale de ladite au moins une tige de piston (13 ; 33 ; 43).
  3. Dispositif d'extraction par pression selon la revendication 1 ou 2, caractérisé en ce qu'un boîtier (47) est prévu pour recevoir au moins une partie du mécanisme d'avance (51), dans lequel le boîtier (47) inclut au moins une paroi de boîtier (48, 49) avec une ouverture traversante (52, 53) pour ladite au moins une tige de piston (43), et dans lequel ledit au moins un élément racleur (61, 66, 71, 76) est prévu pour ladite au moins une paroi de boîtier (48, 49).
  4. Dispositif d'extraction par pression selon la revendication 3, caractérisé en ce que ledit au moins élément racleur (61, 71) est prévu sur le côté de ladite au moins une paroi de boîtier (48, 49) opposé au mécanisme d'avance (51).
  5. Dispositif d'extraction par pression selon la revendication 3 ou 4, caractérisé en ce que ledit au moins un élément racleur (66, 76) est prévu sur le côté de ladite au moins une paroi de boîtier (48, 49) dirigé vers le mécanisme d'avance (51).
  6. Dispositif d'extraction par pression selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins deux éléments racleurs (61, 66, 71, 76) sont respectivement munis d'au moins un bord racleur dirigé vers ladite au moins une tige de piston (43) pour ladite au moins une tige de piston (43).
  7. Dispositif d'extraction par pression selon l'une des revendications 3 à 6, caractérisé en ce qu'au moins une ouverture de sortie (24 ; 54) est prévue sur le boîtier (17 ; 47) pour retirer des contaminants du boîtier (17 ; 47) .
EP10173372.3A 2009-09-09 2010-08-19 Dispositif de compression Active EP2295152B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910040695 DE102009040695A1 (de) 2009-09-09 2009-09-09 Auspressvorrichtung

Publications (3)

Publication Number Publication Date
EP2295152A2 EP2295152A2 (fr) 2011-03-16
EP2295152A3 EP2295152A3 (fr) 2012-12-12
EP2295152B1 true EP2295152B1 (fr) 2016-10-19

Family

ID=43302109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10173372.3A Active EP2295152B1 (fr) 2009-09-09 2010-08-19 Dispositif de compression

Country Status (7)

Country Link
US (1) US8881955B2 (fr)
EP (1) EP2295152B1 (fr)
CN (1) CN102020060B (fr)
CA (1) CA2714263C (fr)
DE (1) DE102009040695A1 (fr)
ES (1) ES2611471T3 (fr)
MX (1) MX2010009525A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011004971A1 (de) * 2011-03-02 2012-09-06 Hilti Aktiengesellschaft Auspressgerät
CN111871726B (zh) * 2020-08-14 2021-12-24 威海创意游艇有限公司 一种pvc粘黏胶水定量挤出系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1375781A (en) * 1920-06-08 1921-04-26 Long George R De Nut
US1946931A (en) * 1932-10-07 1934-02-13 Look L Chong Self-cleaning device for adjustment screws
US2793538A (en) * 1955-12-16 1957-05-28 Beaver Prec Products Inc Wiper for screw threads
US4264021A (en) * 1978-02-08 1981-04-28 Davis George B Jun Hand held electric caulking gun
US4461407A (en) 1981-04-10 1984-07-24 Danny Finnegan Automatic pressure release mechanism for caulk gun
US4923096A (en) * 1989-01-09 1990-05-08 Mark L. Anderson Dripless automatic syringe for dispensing fluids
US5191672A (en) * 1991-08-19 1993-03-09 Rockwell International Corporation Cleaning device for a threaded shaft
US5295614A (en) * 1992-12-22 1994-03-22 Chang Peter J Y Double reduction gear for dispensing gun
DE19845685A1 (de) * 1998-10-05 2000-04-13 Henkel Kgaa Kartuschenpistole

Also Published As

Publication number Publication date
CA2714263A1 (fr) 2011-03-09
EP2295152A2 (fr) 2011-03-16
US8881955B2 (en) 2014-11-11
US20110056997A1 (en) 2011-03-10
CN102020060B (zh) 2015-02-25
MX2010009525A (es) 2011-03-17
CA2714263C (fr) 2017-02-28
DE102009040695A1 (de) 2011-03-10
EP2295152A3 (fr) 2012-12-12
CN102020060A (zh) 2011-04-20
ES2611471T3 (es) 2017-05-09

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