EP1442999A1 - Pneumatisch arbeitender Klopfer - Google Patents
Pneumatisch arbeitender Klopfer Download PDFInfo
- Publication number
- EP1442999A1 EP1442999A1 EP04405024A EP04405024A EP1442999A1 EP 1442999 A1 EP1442999 A1 EP 1442999A1 EP 04405024 A EP04405024 A EP 04405024A EP 04405024 A EP04405024 A EP 04405024A EP 1442999 A1 EP1442999 A1 EP 1442999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- chamber
- percussion piston
- percussion
- knocker
- 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
Images
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 pneumatic knocker, for example for tapping container walls, with a Housing in which a percussion piston is mounted, with Compressed air against the retroactive force of a spring against one Upper wall of the housing is movable, which spring in an upper Chamber is arranged, which has a vent hole and with at least one air duct through which one under the piston arranged lower chamber is vented when the percussion piston has performed a predetermined stroke.
- Pneumatic knockers of the type mentioned have been around for a long time known.
- DE 25 49 551 A discloses one pneumatically working knocker, especially for knocking of dusty material provided by container walls is.
- This has a cylinder tube in which a percussion piston is stored.
- the cylinder tube is at one end with one Cover and closed at another end with a baffle plate.
- the percussion piston is against the retroactive force the spring raised and after changing a valve against the baffle moves.
- Another pneumatic knocker of this type is from the EP 0 345 484 has become known. This is in a side wall of the housing a control hole is provided. This control hole is connected to a 3/2-way air valve via a control line. This valve is also with a connection hole in the Valve wall connected. This is supposed to be an automatic clock control the piston strokes without mechanical interaction with the piston Parts may be possible.
- the disadvantage of this knocker however, the comparatively complex manufacture and Assembly.
- the inventors set themselves the task of pneumatically to create working knockers of the type mentioned, the more cost-effective is manufacturable and easier to assemble.
- the knocker should still be reliable.
- the task is for a pneumatic knocker mentioned type solved in that a control element in the percussion piston is arranged, for quick ventilation of the lower Chamber at a predetermined stroke of the percussion piston Air channel releases and this when returning the percussion piston closes in the lower striking position.
- a pressure chamber is arranged in 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. By venting the Pressure chamber can then lift the control piston and the air duct be released for quick ventilation. Bleeding the Pressure space takes place according to a development of the invention through a vent hole in the piston housing. Preferably several such vent holes are provided, each except for one vent hole, all are closed. The vent holes are in different lifting heights and correspond thus different clout forces. By closing or opening a vent hole can Power changed in a simple way and thus to the respective Requirements are adjusted. The feather that the Percussion piston loaded, does not have to be replaced here.
- FIG 1 shows a knocker 1, which is a cylindrical housing 2 has a lid 3 at one end and the other End with a baffle plate 25 made of plastic for damping is provided.
- the baffle plate 25 lies on a connecting flange 11, the one with a container wall only indicated here 22 is screwed.
- the connecting flange 11 is screwed to the housing 2.
- Vent hole 6 In the cover 3, which forms an upper wall of the housing 2, there is one Vent hole 6 is arranged, preferably a silencer 10 is connected. This vent hole 6 is with an upper chamber 18 in which a coil spring 8 or another suitable spring element is arranged. The spring 8 is at one end on cover 3 and at the other end on one Percussion piston 5 supported.
- the lid 3 is preferably on the Screwed on housing 2.
- FIG. 1 shows the percussion piston 5 in the percussion position, in which it rests on the baffle plate 25.
- a circumferential annular Room 7 At the front end of the piston 5 is a circumferential annular Room 7, which has a radial connection opening 12 of the Housing 2 is connected to a compressed air line 17. through a throttle valve 14, the pressure build-up and thus the Interval time can be set in a first branch line 34.
- a second branch line 13 leads to a further connection opening 23, as can be seen at a distance from the flapper 25 extends radially in the housing 2.
- This connection opening 23 is with a through a passage 24 of the percussion piston 5 Space 20 connected within a control piston 4, which is a control element forms.
- This control piston 4 is in a bore 26 of a first piston part 5a axially displaceably supported and sealed with sealing rings 27 with respect to the bore 26. Sealing elements 21 arranged on the front seal in 1 shows the control piston 4 against a wall 28 of the Percussion piston 5. A passage 9 is in the center of the wall 28 arranged, which is closed in Figure 1 by the control piston 4.
- the control piston 4 can also be controlled by another control element, for example, a membrane can be replaced.
- the control piston 4 however, it is characterized by its particular 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 inside 29 of the housing 2 is the percussion piston 5 by means of sealing grooves 19 sealed. At least one axially runs in the percussion piston 5 Ventilation duct 16, which at one end with the upper chamber 18 and is connected at the other end to an annular space 30. According to FIG. 1, the space 30 is opposed by the control piston 4 the passage 9 closed.
- the percussion piston 5 can act against the retroactive force of the spring 8 be lifted from the baffle plate 25 by the first Branch line 34 compressed air introduced into the lower chamber 7 becomes.
- the connection bore 23 and via the passage 24 compressed air in initiated the room 20 via the second branch line 13, the connection bore 23 and via the passage 24 compressed air in initiated the room 20.
- the throttle valve 14 is now set so that the compressed air enters chamber 7 more slowly than flows into the chamber 20. This creates this pressure in the chamber 20 larger than in chamber 7 and thus valve 14 closed. This ensures that the control piston 4 abuts the wall 28 and the passage 9 is closed remains.
- the pressure in the chamber 7 is chosen so that the Percussion piston 5 raised against the retroactive force of the spring 8 becomes.
- the passage 9 remains closed.
- the passage 9 is when the control piston is lifted off 4 connected to the air duct 16.
- the air duct 16 Are in the percussion piston 5 several such air channels 16 are present, so are all Air channels 16 connected to the passage 9.
- the lower chamber 7 is thus via the passage 9, the at least one air duct 16 and connected via the ventilation hole 6 with ambient air.
- vent hole 15b is closed and the bore 15a by removing a closure member 33, for example an Allen screw opened.
- the vent holes 15c and 15d remain closed. Should the blow power, however, will be reduced, so the vent hole Opened 15c or 15d and the corresponding other Vent hole 15a or 15b closed.
- four vent holes 15a to 15d are provided. Of course, more or less ventilation holes can also be made be provided. These are about as shown arranged in the middle of the housing 2. It is also conceivable a version with an infinitely adjustable ventilation opening. It is important here that the spring 8 is not changed must be, as was usual.
- the percussion piston 5 is located in the one shown in FIG Position, so in the lower chamber 7 and in the chamber 20th a pressure built up.
- the percussion piston 5 is thus automatic raised again, the passage 9 being closed by the control piston 4 is held.
- the stroke cycle mentioned above begins thus again and is repeated automatically until the pressure is interrupted in the compressed air line 17.
- the percussion piston 5 then returns to the position shown in Figure 1.
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)
Abstract
Description
- Figur 1
- schematisch ein Schnitt durch einen erfindungsgemässen Klopfer und
- Figur 2
- ein Schnitt durch den Klopfer gemäss Figur 1, wobei der Schlagkolben angehoben ist.
Claims (9)
- Pneumatisch arbeitender Klopfer, beispielsweise für das Abklopfen von Behälterwandungen (22), mit einem Gehäuse (2), in dem ein Schlagkolben (5) gelagert ist, der mit Druckluft gegen die rückwirkende Kraft einer Feder (8) gegen eine Oberwand (3) des Gehäuses (2) bewegbar ist, welche Feder (8) in einer oberen Kammer (18) angeordnet ist, die eine Entlüftungsbohrung (6) besitzt und mit wenigstens einem Luftkanal (16), durch den eine unter dem Schlagkolben (5) angeordnete Kammer (7) entlüftet wird, wenn der Schlagkolben (5) einen vorbestimmten Hub ausführt, dadurch gekennzeichnet, dass im Schlagkolben (5) ein Steuerelement (4) angeordnet ist, das zur Schnellentlüftung der unteren Kammer (7) bei einem vorbestimmten Hub des Schlagkolbens (5) den genannten Luftkanal (16) freigibt und diesen bei der Rückführung des Schlagkolbens (5) in eine untere Schlagposition wieder schliesst.
- Klopfer nach Anspruch 1, dadurch gekennzeichnet, dass das Steuerelement (4) als Steuerkolben ausgebildet ist.
- Klopfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Luftkanal (16) im Schlagkolben (5) angeordnet ist.
- Klopfer nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass über dem Steuerkolben (4) ein Druckraum (20) angeordnet ist und der Steuerkolben (4) in eine Schliessstellung bringbar ist, in welchem ein Durchgang (9) zwischen der genannten un teren Kammer (7) und einer Kammer (30) des Schlagkolbens (5) verschlossen ist.
- Klopfer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Gehäuse (2) eine Anschlussöffnung (12) aufweist, welche die genannte untere Kammer (7) mit einer Druckleitung (17) verbindet.
- Klopfer nach Anspruch 5, dadurch gekennzeichnet, dass das Gehäuse (2) eine weitere Anschlussöffnung (23) aufweist, welche eine Zweigleitung (13) der Druckluftleitung (17) mit einer Kammer (20) des Steuerkolbens (4) verbindet.
- Klopfer nach Anspruch 6, dadurch gekennzeichnet, dass ein Drosselventil (14) vorgesehen ist, mit welchem der Druckaufbau in der unteren Kammer (7) einstellbar ist.
- Klopfer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass mehrere Entlüftungsbohrungen (15a bis 15d) vorgesehen sind, die in unterschiedlichen Hubhöhen mit einer Druckkammer (20) des Steuerkolbens (4) verbindbar sind.
- Klopfer nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass der Steuerkolben (4) stirnseitig ein Dichtungsmittel (21) aufweist, das in einer Schliessstellung an einer Wandung (28) des Schlagkolbens (5) anliegt und damit ein Durchgang (9) verschlossen wird.
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 true EP1442999A1 (de) | 2004-08-04 |
EP1442999B1 EP1442999B1 (de) | 2006-03-29 |
Family
ID=32601914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04405024A Expired - Lifetime EP1442999B1 (de) | 2003-01-28 | 2004-01-12 | Pneumatisch arbeitender Klopfer |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1442999B1 (de) |
AT (1) | ATE321709T1 (de) |
DE (1) | DE502004000403D1 (de) |
DK (1) | DK1442999T3 (de) |
ES (1) | ES2259437T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1731271A1 (de) * | 2005-06-09 | 2006-12-13 | Netter Gmbh | Pneumatisch arbeitender Klopfer sowie Verfahren zum Betreiben eines pneumatisch arbeitenden Klopfers |
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 |
WO2020185076A1 (en) | 2019-03-12 | 2020-09-17 | Moba Group B.V. | Method and apparatus for cleaning a stack of objects |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861548A (en) * | 1957-02-20 | 1958-11-25 | Burgess | Vibrator |
FR1433406A (fr) * | 1964-02-06 | 1966-04-01 | Appareil vibrateur à soupapes de commande | |
DE1703061A1 (de) * | 1968-03-27 | 1972-04-13 | Krupp Gmbh | Hydraulisch betriebener Linearmotor |
DE2549551A1 (de) | 1975-11-05 | 1977-05-18 | Netter Fa J | Pneumatisch arbeitender klopfer |
EP0345484A2 (de) | 1988-06-04 | 1989-12-13 | Netter Gmbh | Klopfer mit Selbststeuerung |
US5683230A (en) * | 1993-03-25 | 1997-11-04 | Karppinen; Reijo | Pressure medium driven device performing linear motion |
-
2004
- 2004-01-12 EP EP04405024A patent/EP1442999B1/de not_active Expired - Lifetime
- 2004-01-12 ES ES04405024T patent/ES2259437T3/es not_active Expired - Lifetime
- 2004-01-12 AT AT04405024T patent/ATE321709T1/de not_active IP Right Cessation
- 2004-01-12 DK DK04405024T patent/DK1442999T3/da active
- 2004-01-12 DE DE502004000403T patent/DE502004000403D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861548A (en) * | 1957-02-20 | 1958-11-25 | Burgess | Vibrator |
FR1433406A (fr) * | 1964-02-06 | 1966-04-01 | Appareil vibrateur à soupapes de commande | |
DE1703061A1 (de) * | 1968-03-27 | 1972-04-13 | Krupp Gmbh | Hydraulisch betriebener Linearmotor |
DE2549551A1 (de) | 1975-11-05 | 1977-05-18 | Netter Fa J | Pneumatisch arbeitender klopfer |
EP0345484A2 (de) | 1988-06-04 | 1989-12-13 | Netter Gmbh | Klopfer mit Selbststeuerung |
US5683230A (en) * | 1993-03-25 | 1997-11-04 | Karppinen; Reijo | Pressure medium driven device performing linear motion |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1731271A1 (de) * | 2005-06-09 | 2006-12-13 | Netter Gmbh | Pneumatisch arbeitender Klopfer sowie Verfahren zum Betreiben eines pneumatisch arbeitenden Klopfers |
EP1731272A2 (de) * | 2005-06-09 | 2006-12-13 | Netter Gmbh | Pneumatisch arbeitender Klopfer sowie Verfahren zum Betreiben eines pneumatisch arbeitenden Klopfers |
EP1731272A3 (de) * | 2005-06-09 | 2007-11-14 | Netter Gmbh | Pneumatisch arbeitender Klopfer sowie Verfahren zum Betreiben eines pneumatisch arbeitenden Klopfers |
US7607490B2 (en) | 2005-06-09 | 2009-10-27 | Netter Gmbh | Pneumatic impact tool and method |
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 |
WO2020185076A1 (en) | 2019-03-12 | 2020-09-17 | Moba Group B.V. | Method and apparatus for cleaning a stack of objects |
Also Published As
Publication number | Publication date |
---|---|
DE502004000403D1 (de) | 2006-05-18 |
DK1442999T3 (da) | 2006-08-07 |
ES2259437T3 (es) | 2006-10-01 |
EP1442999B1 (de) | 2006-03-29 |
ATE321709T1 (de) | 2006-04-15 |
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