EP0223216B2 - Sackfüllmaschine - Google Patents

Sackfüllmaschine Download PDF

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Publication number
EP0223216B2
EP0223216B2 EP86115872A EP86115872A EP0223216B2 EP 0223216 B2 EP0223216 B2 EP 0223216B2 EP 86115872 A EP86115872 A EP 86115872A EP 86115872 A EP86115872 A EP 86115872A EP 0223216 B2 EP0223216 B2 EP 0223216B2
Authority
EP
European Patent Office
Prior art keywords
filling
filling pipe
section
filling tube
filling machine
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
EP86115872A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0223216B1 (de
EP0223216A1 (de
Inventor
Joachim Dr.-Ing. Spiess
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.)
Natronag Gesellschaft fuer Verpackungssysteme mbH
Original Assignee
Natronag Gesellschaft fuer Verpackungssysteme mbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6286044&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0223216(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Natronag Gesellschaft fuer Verpackungssysteme mbH filed Critical Natronag Gesellschaft fuer Verpackungssysteme mbH
Priority to AT86115872T priority Critical patent/ATE42246T1/de
Publication of EP0223216A1 publication Critical patent/EP0223216A1/de
Publication of EP0223216B1 publication Critical patent/EP0223216B1/de
Application granted granted Critical
Publication of EP0223216B2 publication Critical patent/EP0223216B2/de
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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/18—Methods of, or means for, filling the material into the containers or receptacles for filling valve-bags

Definitions

  • the invention relates to a filling machine with a device for the pneumatic conveying of the filling material from a storage container provided with an inclined bottom through a rigid, fixedly connected to a weighing device, inclined filling tube, the internal cross section of which is substantially greater in width than height, into a filling tube slide-on valve bag.
  • Filling machines have been known for many years and are used in particular for filling bags with dusty goods. Pneumatic conveying has proven itself in practice. Disadvantages accepted are that the filling tube is not completely emptied at the end of the filling process of a sack, which is controlled by a balance. Since the filling tube is regularly included in the weighing, because the sack to be filled hangs on the filling tube and therefore cannot be weighed independently of the filling tube, this results in an inaccuracy in the weighing process, which leads to the precaution that a little more filling material is regularly added to the weighing tube Sack must be filled as intended. Since a round valve of a valve sack is regularly plugged onto the filling pipes, the filling pipes also have a round inner cross section, which is available for conveying the filling material.
  • a similar filling machine in which the filling tube forms an angle of less than 10 ° with the horizontal, can be found in the company brochure "Description and commissioning E 90 of the HAVER valve bag packing machine type: 540 (LBa) and 545 (LB)" from the company Haver & Boecker known. From DE-U-1 833.573 it is also known to design the inner cross-section of a filling tube oval, the width being substantially greater than the height of the inner cross-section.
  • the invention has for its object to improve a filling machine of the type mentioned so that an improved emptying of the filling tube is achieved at the end of the filling process.
  • the filling tube includes an angle of about 20 ° to 35 ° with the horizontal and that the angle of inclination of the filling tube corresponds to the angle of inclination of the bottom of the storage container.
  • a rectangular, semicircular or elliptical cross-section can be considered as cross-sectional shapes in the filling tube according to the invention.
  • the filling tube has the greatest width at its bottom, which is the case with filling tubes with a rectangular or semicircular cross section.
  • the preferred embodiment is a fill tube with a rectangular cross section.
  • the ratio of width and height of the inner cross section of the filling tube is preferably about 2: 1.
  • this filling tube led to a reduction in the deposit of 30% compared to a filling tube with a round inner cross section.
  • the filling pipe can be constructed with two shells.
  • the space between the two shells can be used to remove the compressed air escaping from the sack.
  • the bottom of the filling pipe can be designed as a ventilation floor. In this way, a type of fluidized bed can be created with which any remaining amount remaining in the filling pipe can be discharged completely.
  • the air supply lines can also be accommodated in the space between the two shells. The previously common, heavily dust-producing blow-out devices with mostly unsatisfactory residual emptying of the filling tube can thus be dispensed with.
  • the outer wall is formed by an inflation hose which automatically forms the required round outer wall when it is inflated with compressed air or the like.
  • the filling machine shown in Figure 1 has a support frame 1 to which a bag chair 2 is attached as part of a weighing device.
  • a filling tube 3 is connected to the arrangement movable with the bag chair 2. Via a rubber piece 4 effecting a decoupling of the weight of the filling tube 3 from the support frame 1, the filling tube 3 continues to a storage cylinder 5, into which the continuation of the filling tube 3 opens.
  • the filling tube 3 is inclined obliquely downwards, its inclination roughly corresponding to the inclination of a bottom 6 of the storage cylinder 5.
  • a plurality of compressed air chambers 7 are arranged below the bottom 6 and are supplied individually with compressed air hoses 8. The pressure in the compressed air lines 8 can be adjusted via the adjusting regulator 9.
  • a shut-off device 10 At the upper end of the storage cylinder 5 there is a shut-off device 10 with which the storage cylinder 5 can be separated from a supply line 11 from a storage bunker (not shown).
  • FIG. 2 and 3 clarify the structure of the filling tube 3 with the devices attached to it.
  • the filling tube 3 is attached at an angle of approximately 20 ° to the horizontal, pointing obliquely downward on the outer wall of the storage cylinder 5 and opens into the latter with a through opening 14 which has exactly the cross section of the filling tube 3.
  • the filling tube has rectangular inner walls 15, the width of its inner cross section being approximately twice as large as the height.
  • the inner wall 15 of the filling tube 3, which forms the bottom, which is horizontal in cross section, is aligned with the bottom 6 of the supply cylinder 5. Below the bottom 6, the associated compressed air chamber 7 is indicated in FIG.
  • the front end of the filling tube 3 has the rectangular inner cross section, which is illustrated in FIG. 2a with a section along the line AB in FIG. 2.
  • a protective plate 16 is attached on the bottom inner wall of the filling tube 3, in which two ventilation lines 17 are guided. These vent lines 17 serve to discharge the conveyed air pumped into the sack with the filling material from the sack.
  • the outer wall of the filling tube 3 has two annularly formed and spaced apart grooves 18, between which a chamber 19 is formed. In the grooves 18 two ends of an inflation hose 20 are fixed in a ring-shaped manner, which spans the chamber 19.
  • a compressed air supply line 21 opens into the chamber 19, through which the compressed air required to inflate the inflation hose 20 is pumped into the chamber 19.
  • the part of the filling tube 3 described so far is connected to the weighing device via the mounting bracket 12. It is followed by the soft rubber piece 4 towards the supply cylinder 5, with which the front part of the filling pipe 3 is decoupled in weight from the remaining part of the filling pipe 3.
  • the part of the rubber piece 4 pointing towards the supply cylinder 5 is fastened to the support frame 1 of the filling machine. It is continued by a further piece of rubber 21 which merges into a fixed line piece 22 attached to the outer wall of the supply cylinder 5.
  • the rubber pieces 4, 21 and the line piece 22 all have the rectangular inner cross section shown in FIG. 2a, so that a smooth flow channel with a rectangular inner cross section is formed for the filling pipe 3.
  • the rubber piece 21 can be partially or completely compressed by means of two pressure pistons 23. Due to the partial compression of the rubber piece 21, the quantity of the product passed through the filling tube 3 is reduced in quantity, that is to say a so-called fine flow is formed. In a known manner, the fine flow serves for the residual filling of the sack largely filled with a coarse flow. By completely compressing the rubber piece 21, the flow is completely interrupted and the filling of the sack is ended.
  • the front part of the filling pipe connected to the weighing device is usually emptied with a blast of compressed air.
  • This emptying is problematic since the blast of compressed air leads to an abrupt increase in the pressure in the sack, which poses a risk of bursting and in the rest of the filling material is dusted by minor leaks.
  • the emptying of the filling pipe is further improved by the fact that the bottom of the filling pipe 3 is at least partially constructed as a sieve, under which a compressed air line 25 ends (cf. FIG. 2a).
  • a compressed air line 25 ends cf. FIG. 2a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP86115872A 1985-11-15 1986-11-14 Sackfüllmaschine Expired - Lifetime EP0223216B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115872T ATE42246T1 (de) 1985-11-15 1986-11-14 Sackfuellmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540506 DE3540506A1 (de) 1985-11-15 1985-11-15 Sackfuellmaschine
DE3540506 1985-11-15

Publications (3)

Publication Number Publication Date
EP0223216A1 EP0223216A1 (de) 1987-05-27
EP0223216B1 EP0223216B1 (de) 1989-04-19
EP0223216B2 true EP0223216B2 (de) 1992-05-13

Family

ID=6286044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115872A Expired - Lifetime EP0223216B2 (de) 1985-11-15 1986-11-14 Sackfüllmaschine

Country Status (5)

Country Link
EP (1) EP0223216B2 (es)
AT (1) ATE42246T1 (es)
DE (2) DE3540506A1 (es)
ES (1) ES2008850B3 (es)
NO (1) NO864551L (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4100658C2 (de) * 1991-01-11 1995-01-05 Haver & Boecker Verfahren und Maschine zum Einbringen von fließfähigem Füllgut in Behältnisse
DE4239658C2 (de) * 1992-11-26 1995-10-19 Haver & Boecker Verfahren zum Füllen von Ventilsäcken mittels einer Füllmaschine
DE10258246A1 (de) * 2002-12-13 2004-07-15 Haver & Boecker Verfahren und Füllmaschine zum Füllen von Ventilsäcken
EP3398859B1 (de) * 2017-05-04 2019-09-25 BEUMER Group GmbH & Co. KG Füllrohr zum füllen von ventilsäcken

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8221267U1 (de) * 1982-10-28 Haver & Boecker, 4740 Oelde Doppelwandiger Füllstutzen mit einem mittigen Füllkanal
DE614909C (de) * 1935-06-21 Carl Haver & Ed Boecker Fa Elastisches Fuellrohr fuer Ventilsaecke
US1197877A (en) * 1913-01-10 1916-09-12 Automatic Weighing Machine Company Bag-filling apparatus.
US2879970A (en) * 1954-05-20 1959-03-31 Edric W Vredenburg Weighing mechanism
FR1439188A (fr) * 1965-04-07 1966-05-20 Perfectionnement aux bacs des machines à ensacher
DE2717948C2 (de) * 1977-04-22 1982-10-07 Erwin Behn Verpackungsbedarf Gmbh, 4150 Krefeld Ventilsackfüllvorrichtung für flugfähiges Füllgut

Also Published As

Publication number Publication date
DE3540506A1 (de) 1987-05-21
EP0223216B1 (de) 1989-04-19
DE3540506C2 (es) 1987-10-15
ATE42246T1 (de) 1989-05-15
DE3662863D1 (en) 1989-05-24
ES2008850B3 (es) 1989-08-16
EP0223216A1 (de) 1987-05-27
NO864551L (no) 1987-05-18
NO864551D0 (no) 1986-11-14

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