EP1442999B1 - Dispositif batteur pneumatique - Google Patents

Dispositif batteur pneumatique Download PDF

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Publication number
EP1442999B1
EP1442999B1 EP04405024A EP04405024A EP1442999B1 EP 1442999 B1 EP1442999 B1 EP 1442999B1 EP 04405024 A EP04405024 A EP 04405024A EP 04405024 A EP04405024 A EP 04405024A EP 1442999 B1 EP1442999 B1 EP 1442999B1
Authority
EP
European Patent Office
Prior art keywords
piston
chamber
percussion piston
air
housing
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 - Lifetime
Application number
EP04405024A
Other languages
German (de)
English (en)
Other versions
EP1442999A1 (fr
Inventor
Thomas Kopp
Martin Deller
Werner Lenherr
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.)
Findeva AG
Original Assignee
Findeva 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 Findeva AG filed Critical Findeva AG
Publication of EP1442999A1 publication Critical patent/EP1442999A1/fr
Application granted granted Critical
Publication of EP1442999B1 publication Critical patent/EP1442999B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/64—Large containers characterised by means facilitating filling or emptying preventing bridge formation
    • B65D88/66—Large containers characterised by means facilitating filling or emptying preventing bridge formation using vibrating or knocking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
    • B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses

Definitions

  • the invention relates to a pneumatically operated knocker, for example, for the tapping of container walls, with a housing in which a percussion piston is mounted, which is movable with compressed air against the retroactive force of a spring against an upper wall of the housing, which spring arranged in an upper chamber is, which has a vent hole and with at least one air passage through which a arranged below the percussion piston lower chamber is vented when the percussion piston has performed a predetermined stroke.
  • DE 25 49 551 A discloses a pneumatically operated knocker, which is provided in particular for the tapping of dust-like material from container walls.
  • This has a cylinder tube in which a percussion piston is mounted.
  • the cylinder tube is closed at one end with a lid and at another end with a baffle plate.
  • the percussion piston is lifted against the retroactive force of the spring and moved after the conversion of a valve against the baffle plate.
  • the inventors have set themselves the task of creating a pneumatically operated knocker of the type mentioned, which is less expensive to produce and easier to install.
  • the knocker should still be reliable.
  • a pneumatically operated knocker of the type mentioned in that a control element is arranged in the percussion piston, which releases the said air duct for quick exhaust of the lower chamber at a predetermined stroke of the percussion piston and this closes when returning the percussion piston in the lower stroke position again , wherein the air channel is arranged in the percussion piston.
  • a particularly simple and compact design results when, according to an embodiment of the invention, the air duct for quick exhaust of the lower chamber is arranged in the piston. On the outside arranged air line can be dispensed with in this case.
  • a pressure chamber is arranged above the control piston and the control piston can be brought into a closed position, in which the pressure chamber is connected to a pressure line.
  • the venting of the pressure chamber is carried out according to an embodiment of the invention by a vent hole in the piston housing.
  • a vent hole in the piston housing.
  • a plurality of such vent holes are provided, each except one vent hole are all closed.
  • the vent holes are in different lifting heights and thus correspond to different impact forces. By closing or opening a vent hole so that the impact can be changed in a simple manner and thus adapted to the particular requirements.
  • the spring which loads the percussion piston, does not have to be replaced.
  • a knocker 1 shows a knocker 1, which has a cylindrical housing 2, which at one end with a cover 3 and at the other End is provided with a baffle plate 25 made of plastic for damping.
  • the baffle plate 25 rests against a connecting flange 11, which is screwed to a container wall 22, which is merely indicated here.
  • the connecting flange 11 is screwed to the housing 2.
  • a vent hole 6 is arranged, to which preferably a muffler 10 is connected.
  • This vent hole 6 is connected to an upper chamber 18 in which a coil spring 8 or another suitable spring element is arranged.
  • the spring 8 is supported at one end on the cover 3 and at the other end on a percussion piston 5.
  • the cover 3 is preferably screwed onto the housing 2.
  • the percussion piston 5 is shown in the impact position, in which this rests on the baffle plate 25.
  • a circumferential annular space 7 At the front end of the piston 5 is a circumferential annular space 7, which is connected via a radial connection opening 12 of the housing 2 with a compressed air line 17.
  • a second branch line 13 leads to a further connection opening 23 which, as can be seen, runs radially in the housing 2 at a distance from the baffle plate 25.
  • This connection opening 23 is connected via a passage 24 of the percussion piston 5 with a space 20 within a control piston 4, which forms a control.
  • This control piston 4 is mounted axially displaceably limited in a bore 26 of a first piston part 5a and sealed with sealing rings 27 relative to the bore 26.
  • Front side sealing elements 21 seal in Figure 1, the control piston 4 relative to a wall 28 of the percussion piston 5 from.
  • a passage 9 is arranged, which is closed by the control piston 4 in FIG.
  • the control piston 4 can also be replaced by another control element, for example a membrane.
  • the control piston 4 is characterized by special durability.
  • the percussion piston 5 consists of a first piston part 5a and a second piston part 5b. These two piston parts 5a and 5b are firmly connected. Opposite an inner side 29 of the housing 2, the percussion piston 5 is sealed by means of sealing grooves 19. In the percussion piston 5 extends axially at least one ventilation duct 16, which is connected at one end to the upper chamber 18 and at the other end with an annular space 30. The space 30 is closed according to Figure 1 by the control piston 4 with respect to the passage 9.
  • the percussion piston 5 can be raised against the retroactive force of the spring 8 of the baffle plate 25 by 34 compressed air is introduced into the lower chamber 7 via the first branch line.
  • compressed air is simultaneously introduced into the space 20 via the second branch line 13, the connection bore 23 and via the passage 24.
  • the throttle valve 14 is now adjusted so that in this case the compressed air flows into the chamber 7 slower than in the chamber 20.
  • this pressure in the chamber 20 is greater than in the chamber 7 and thus the valve 14 is closed.
  • the pressure in the chamber 7 is selected so that the percussion piston 5 is raised against the retroactive force of the spring 8.
  • the passage 9 remains closed.
  • the pressure in the chamber 20 is maintained until the passage 24 is an open one Vent hole 15b is reached, which radially penetrates the wall 2.
  • the pressure in the chamber 20 thus falls to the ambient pressure.
  • the increased pressure in the chamber 7 is maintained, so that the control piston 4 is lifted immediately from the wall 28.
  • the passage 9 is connected to the air duct 16 when the control piston 4 is lifted off. Are in the percussion piston 5 more such air channels 16 present, all air ducts 16 are connected to the passage 9.
  • the lower chamber 7 is thus connected via the passage 9, the at least one air duct 16 and the vent hole 6 with ambient air.
  • venting bore 15b is closed and the bore 15a is opened by removing a closure element 33, for example an Allen screw.
  • the vent holes 15c and 15d remain closed. Should the impact, however, be reduced, the vent hole 15c or 15d is opened and the corresponding other vent hole 15a and 15b closed.
  • four vent holes 15a to 15d are provided. Of course, more or less vent holes can be provided. These are arranged as shown approximately in the middle height of the housing 2.
  • Dékbar is also a version with a continuously adjustable vent. It is essential here that the spring 8 does not have to be changed, as was usual.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Nozzles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Claims (8)

  1. Dispositif batteur pneumatique, par exemple pour frapper des parois de récipients (22), comprenant un boîtier (2), dans lequel est monté un piston frappeur (5) qui peut être déplacé par de l'air comprimé à l'encontre de la force de rappel d'un ressort (8) contre une paroi supérieure (3) du boîtier (2), lequel ressort (8) est disposé dans une chambre supérieure (18) qui possède un alésage de désaérage (6) et avec au moins un conduit d'air (16) par lequel une chambre (7) disposée sous le piston frappeur (5) est désaérée lorsque le piston frappeur (5) parcourt une course prédéterminée, caractérisé en ce que dans le piston frappeur (5) est disposé un élément de commande (4) qui, pour le désaérage rapide de la chambre inférieure (7) en cas de course prédéterminée du piston frappeur (5) libère ledit conduit d'air (16) et le referme à nouveau lors du rappel du piston frappeur (5) dans une position de frappe inférieure, le conduit d'air (16) étant disposé dans le piston frappeur.
  2. Dispositif batteur selon la revendication 1,
    caractérisé en ce que l'élément de commande (4) est réalisé sous la forme d'un piston de commande.
  3. Dispositif batteur selon la revendication 1 ou 2, caractérisé en ce qu'au-dessus du piston de commande (4) est disposé un espace de pression (20) et le piston de commande (4) peut être amené dans une position de fermeture dans laquelle un passage (9) entre ladite chambre inférieure (7) et une chambre (30) du piston frappeur (5) est fermé.
  4. Dispositif batteur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le boîtier (2) présente une ouverture de raccordement (12) qui relie ladite chambre inférieure (7) à une conduite de pression (17).
  5. Dispositif batteur selon la revendication 4, caractérisé en ce que le boîtier (2) présente une autre ouverture de raccordement (23) qui relie une conduite de branchement (13) de la conduite d'air sous pression (17) à une chambre (20) du piston de commande (4).
  6. Dispositif batteur selon la revendication 5, caractérisé en ce que l'on prévoit une soupape d'étranglement (14) avec laquelle l'accumulation de pression dans la chambre inférieure (7) peut être ajustée.
  7. Dispositif batteur selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'on prévoit plusieurs alésages de désaérage (15a à 15d), qui peuvent être reliés à une chambre de pression (20) du piston de commande (4) à différentes hauteurs de course.
  8. Dispositif batteur selon l'une quelconque des revendications 2 à 8, caractérisé en ce que le piston de commande (4) présente du côté frontal un moyen d'étanchéité (21) qui s'applique dans une position de fermeture contre une paroi (28) du piston frappeur (5) et qui ferme ainsi un passage (9).
EP04405024A 2003-01-28 2004-01-12 Dispositif batteur pneumatique Expired - Lifetime EP1442999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1172003 2003-01-28
CH1172003 2003-01-28

Publications (2)

Publication Number Publication Date
EP1442999A1 EP1442999A1 (fr) 2004-08-04
EP1442999B1 true EP1442999B1 (fr) 2006-03-29

Family

ID=32601914

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405024A Expired - Lifetime EP1442999B1 (fr) 2003-01-28 2004-01-12 Dispositif batteur pneumatique

Country Status (5)

Country Link
EP (1) EP1442999B1 (fr)
AT (1) ATE321709T1 (fr)
DE (1) DE502004000403D1 (fr)
DK (1) DK1442999T3 (fr)
ES (1) ES2259437T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731271A1 (fr) * 2005-06-09 2006-12-13 Netter Gmbh Dispositif batteur pneumatique ainsi que procédé de fonctionnement d'un dispositif batteur pneumatique
CN104724411A (zh) * 2015-03-29 2015-06-24 浙江东立绿源科技股份有限公司 一种用于饲料生产的振打料斗
EP4117832B1 (fr) 2019-03-12 2024-05-15 Moba Group B.V. Procédé et appareil pour nettoyer un empilement d'objets

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861548A (en) * 1957-02-20 1958-11-25 Burgess Vibrator
US3253514A (en) * 1964-02-06 1966-05-31 Axel H Peterson Valve control for vibrator and like apparatus operating on elastic fluid
DE1703061C3 (de) * 1968-03-27 1974-02-14 Fried. Krupp Gmbh, 4300 Essen Hydraulisch betriebener Schubkolbenmotor
DE2549551C3 (de) 1975-11-05 1979-05-03 Fa. Jean Netter, 6200 Wiesbaden Pneumatisch arbeitender Klopfer
DE3819112A1 (de) 1988-06-04 1989-12-14 Netter Gmbh Klopfer mit selbststeuerung
US5683230A (en) * 1993-03-25 1997-11-04 Karppinen; Reijo Pressure medium driven device performing linear motion

Also Published As

Publication number Publication date
ATE321709T1 (de) 2006-04-15
DE502004000403D1 (de) 2006-05-18
ES2259437T3 (es) 2006-10-01
EP1442999A1 (fr) 2004-08-04
DK1442999T3 (da) 2006-08-07

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