MX2012003968A - Vacuum drive assembly. - Google Patents

Vacuum drive assembly.

Info

Publication number
MX2012003968A
MX2012003968A MX2012003968A MX2012003968A MX2012003968A MX 2012003968 A MX2012003968 A MX 2012003968A MX 2012003968 A MX2012003968 A MX 2012003968A MX 2012003968 A MX2012003968 A MX 2012003968A MX 2012003968 A MX2012003968 A MX 2012003968A
Authority
MX
Mexico
Prior art keywords
band
gallery
teeth
opening
pair
Prior art date
Application number
MX2012003968A
Other languages
Spanish (es)
Inventor
Alfred Alexander Taylor
Original Assignee
Tna Australia Pty Ltd
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
Priority claimed from AU2011901397A external-priority patent/AU2011901397A0/en
Application filed by Tna Australia Pty Ltd filed Critical Tna Australia Pty Ltd
Publication of MX2012003968A publication Critical patent/MX2012003968A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/2027—Suction retaining means
    • B65G21/2036—Suction retaining means for retaining the load on the load-carrying surface
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/2014—Tube advancing means
    • B65B9/2028—Rollers or belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/2027—Suction retaining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/20—Belt drives
    • B65H2403/21—Timing belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/31—Suction box; Suction chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/40—Movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/512—Starting; Stopping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/191—Bags, sachets and pouches or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Belt Conveyors (AREA)
  • Vacuum Packaging (AREA)

Abstract

A drive assembly (10) to drive packaging film for delivery to a packaging machine. The assembly (10) includes an elongated endless flexible belt (11) with a plurality of teeth (16) that are used to drive the belt (11). The teeth (16) are arranged in rows along the longitudinal edges of the belt (11). Between the rows of teeth (16) is a row of apertures (23) that communicates with a gallery (20).

Description

VACUUM DRIVE UNIT TECHNICAL FIELD The present invention relates to vacuum drive units and more particularly, but not exclusively, to vacuum drive units, used to move the tubular bag material to a packaging machine.
BACKGROUND OF THE INVENTION In the United States Patent 4663917 a packaging machine is described. The packaging machine receives the tubular bag material in which the product will be supplied; The packaging machine then transversely seals and transversally cuts the tubular bag material to provide product bags. The tubular bag material is moved to the packaging machine by a vacuum drive unit (film drive unit). Vacuum band drive units (film drive units) are described in United States Patents 7472528 and 4910943.
The film drive units include a gallery beyond which a band is driven. Vacuum is applied to the openings in the band so 52-783-12 that the packaging film moves in contact with the web in order to be fastened to the web. Accordingly, as the web is driven, the tubular bag material moves along with the web to be delivered to the packaging machine.
A disadvantage of the known film drive units is that as the belts wear out, the air leaks into the galleries, thus reducing the vacuum applied to the openings in the belt. This has the disadvantage that the packaging film is not firmly attached, with the result that bags can not be formed correctly by the packaging machine.
OBJECT OF THE INVENTION The object of the present invention is to overcome or substantially solve at least one of the above disadvantages.
SUMMARY OF THE INVENTION Hereby a vacuum drive unit is described which includes: a gallery to which reduced air pressure is to be applied, the gallery has at least one opening; an endless band coupled with the gallery so that it can move past the gallery in one direction 52-783-12 default; the band has a longitudinally extending inner surface and an outer longitudinally extending surface between which openings extend; the openings are located at points spaced longitudinally along the band and will align with the opening of the gallery so that the reduced air pressure is applied to the openings of the band when they are aligned with the opening of the gallery; a plurality of driving teeth located at spaced apart positions along the inner surface to be coupled by a driving toothed wheel serving to drive the band in said direction; the protuberances are arranged in a pair of parallel rows, each of the rows extending longitudinally with respect to the band but are transversely spaced apart so that the openings of the band are located between the rows; and where the gallery has a pair of elongated guide protrusions, located between the teeth and coupled with the interior surface to help connect the inner surface with the gallery in a sealed manner; the teeth are also coupled with the protuberances so that the band is guided in its passage through the gallery.
Preferably, the opening of the gallery is a slot extending in said direction. 52-783-12 Preferably, the driving teeth are arranged in pairs, each pair consisting of one tooth from each of the rows; the teeth of each pair align transversely with an opening of the band located between them.
BRIEF DESCRIPTION OF THE DRAWINGS A preferred form of the present invention will now be described by way of example, with reference to the accompanying drawings, wherein: Figure 1 is an exploded isometric schematic view of the parts of a vacuum drive strip and a vacuum gallery; Figure 2 is an exploded isometric schematic view of the portion of the band of Figure 1; Figure 3 is a schematic view in lateral elevation of the gallery and the band of Figure 1 with drive gears; Figure 4 is a schematic view in sectional side elevation of the gallery and the band as shown in Figure 3, with a section cut along the line 4-4; Y Figure 5 is an enlarged schematic view of a portion of the gallery and the band as shown in Figure 4. 52-783-12 DETAILED DESCRIPTION OF THE PREFERRED MODALITY A vacuum drive unit 10 is schematically depicted in the accompanying drawings. Typically, the unit 10 would drive the packaging film that will be delivered to a packaging machine. As a particular example, two units 10 could be provided, wherein the units 10 are located on opposite sides of the tubular bag material that is supplied to the packaging machine.
The unit 10 includes an elongated endless flexible band 11. The band 11 includes a longitudinally extending body 12 and has an outer longitudinal surface 13 and an inner surface 14 extending longitudinally. Extending between the surfaces 13 and 14 is a plurality of band openings 15.
Extending inwardly from the surface 14 is a plurality of drive teeth 16. The teeth 16 are arranged in a pair of rows 17 extending longitudinally of the web and transversely spaced so that they are adjacent to the portions of edge of the band 11. The teeth 16 are arranged in pairs aligned transversely across the band so that an opening 15 is located between them. 52-783-12 The band 11 is driven in a predetermined direction 18 by a pair of drive gears (rollers) 19. Each of the drive gears 19 has a plurality of teeth that engage the teeth 16 in order to drive the band 11 at address 18.
Coupled with the band 11 is a gallery 20. The gallery 20 includes a closed chamber 21 which by means of a conduit 22 is connected to an air pump that reduces the air pressure in the chamber 21.
The gallery 20 also has a longitudinally extending slot (opening) 23 in the direction 18. The opening 23 is positioned so as to communicate with a selected number of the openings 15 which align with the opening 23.
Located on both sides of the opening 23 are guide protrusions 24 extending longitudinally. The guide protuberances 24 are located between the rows 17 to slidably engage the inner surfaces 25 of the teeth 16 to guide the band 17 in its movement beyond the gallery 20.
Each of the protuberances 24 has a sealing surface 26 that extends longitudinally and generally flat and is coupled in a 52-783-12 slidable to the inner face 14 of the band 11 for sealingly connecting the gallery 20 to the band 11. In this regard, it should be noted that the opening 23 is closed at its end ends.
An advantage of the preferred embodiment described above is that the surfaces 26 engage the surface 14 so that a reduced air pressure is applied to the openings 15. This arrangement is more tolerant to wear of the surfaces 26 and 14. Additionally, the band is pushed against the gallery, making contact with it, as a result of the reduced air pressure on the inner surface 14. 52-783-12

Claims (4)

1. A vacuum drive unit that includes: a gallery to which reduced air pressure is to be applied, the gallery has at least one opening; an endless band coupled with the gallery so that the band can move beyond the gallery in a predetermined direction; the band has a longitudinally extending inner surface and an outer longitudinally extending surface, between which openings extend; the openings are located at points spaced longitudinally along the band and will be aligned with the opening of the gallery so as to apply the reduced air pressure to the openings of the band aligned with the opening of the gallery; a plurality of driving teeth located at spaced apart positions along the inner surface to be coupled by a driving toothed wheel serving to drive the band in said direction; the protrusions are arranged in a pair of parallel rows, each of the rows extends longitudinally with respect to the band, but is transversely spaced apart so that the openings of the band are located between the rows; and where the gallery has a pair of guide protuberances 52-783-12 elongated located between the teeth and coupled with the inner surface to help the inner surface connect in a sealed manner with the gallery; the teeth are also attached to the protuberances so that the band is guided in its passage through the gallery.
2. The unit according to claim 1, wherein the opening of the gallery is a slot extending in said direction.
3. The unit according to claim 1, wherein the driving teeth are arranged in pairs; each pair consists of one tooth from each row; the teeth of each pair are aligned transversely with an opening of the band located between them.
4. The unit according to claim 2, wherein the driving teeth are arranged in pairs; each pair consists of one tooth from each row; the teeth of each pair are aligned transversely with an opening of the band located between them. 52-783-12
MX2012003968A 2011-04-13 2012-04-02 Vacuum drive assembly. MX2012003968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU2011901397A AU2011901397A0 (en) 2011-04-13 A vacuum drive assembly

Publications (1)

Publication Number Publication Date
MX2012003968A true MX2012003968A (en) 2012-10-26

Family

ID=46177082

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2012003968A MX2012003968A (en) 2011-04-13 2012-04-02 Vacuum drive assembly.

Country Status (7)

Country Link
US (1) US20120261455A1 (en)
JP (1) JP2012218944A (en)
AU (1) AU2012201595A1 (en)
DE (1) DE102012005553A1 (en)
GB (1) GB2490026A (en)
IT (1) ITMI20120575A1 (en)
MX (1) MX2012003968A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103387065A (en) * 2013-07-30 2013-11-13 新乡东方工业科技有限公司 Synchronous belt for positioning and conveying articles
AU2014227559B2 (en) * 2013-11-19 2018-02-08 Tna Australia Pty Limited A film drive assembly for a packaging machine
AU2014227558B2 (en) 2013-11-19 2018-02-08 Tna Australia Pty Limited Sealing jaws for a packaging machine
GB2534824A (en) 2013-12-05 2016-08-03 Procter & Gamble Apparatus and method for conveying absorbent articles
DE112014005552T5 (en) * 2013-12-05 2016-09-29 The Procter & Gamble Company Apparatus and method for conveying absorbent articles
ES2658113B8 (en) 2016-08-15 2019-07-25 Tna Australia Pty Ltd Packaging set
CN110065679A (en) * 2018-01-23 2019-07-30 淮北市极创信息科技有限责任公司 A kind of snack food moisture-proof packaging structure

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US491043A (en) 1893-01-31 Window
US3425610A (en) * 1966-06-29 1969-02-04 Koppers Co Inc Vacuum device for advancing a continuous web
US3198517A (en) * 1962-11-14 1965-08-03 Pitney Bowes Inc Document handling means
US4136505A (en) * 1977-11-11 1979-01-30 Package Machinery Company Tubeless vertical form, fill and seal packaging machine with improved feed means
US4288965A (en) * 1979-08-27 1981-09-15 Hayssen Manufacturing Company Form-fill-seal packaging method and apparatus
DE3113634A1 (en) * 1981-04-04 1982-10-21 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR PRODUCING BAG PACKS
US4532753A (en) * 1983-02-18 1985-08-06 Hayssen Manufacturing Company Method of and apparatus for forming, filling and sealing packages
US4663917A (en) 1984-06-20 1987-05-12 Taylor Alfred A Packaging apparatus
US4840012A (en) * 1987-12-10 1989-06-20 Zip-Pak Incorporated Zippered film feed
US5125217A (en) * 1990-07-31 1992-06-30 Ishida Scales Mfg. Co. Ltd. Apparatus for pulling bag-making material for form-fill-seal packaging machine
GB2416341B (en) 2004-07-21 2007-08-29 Tna Australia Pty Ltd A vacuum belt assembly to drive tubular bag material

Also Published As

Publication number Publication date
GB2490026A (en) 2012-10-17
ITMI20120575A1 (en) 2012-10-14
DE102012005553A1 (en) 2012-10-18
GB201206301D0 (en) 2012-05-23
AU2012201595A1 (en) 2012-11-01
JP2012218944A (en) 2012-11-12
US20120261455A1 (en) 2012-10-18

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