GB2480865A - Controlling the distribution of vacuum across the width of a suction roller - Google Patents

Controlling the distribution of vacuum across the width of a suction roller Download PDF

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Publication number
GB2480865A
GB2480865A GB201009364A GB201009364A GB2480865A GB 2480865 A GB2480865 A GB 2480865A GB 201009364 A GB201009364 A GB 201009364A GB 201009364 A GB201009364 A GB 201009364A GB 2480865 A GB2480865 A GB 2480865A
Authority
GB
United Kingdom
Prior art keywords
roller
width
flow
chamber
vacuum
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.)
Withdrawn
Application number
GB201009364A
Other versions
GB201009364D0 (en
Inventor
Nickolas Dibb
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB201009364A priority Critical patent/GB2480865A/en
Publication of GB201009364D0 publication Critical patent/GB201009364D0/en
Publication of GB2480865A publication Critical patent/GB2480865A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/12—Advancing webs by suction roller
    • 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
    • B65H5/226—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction rollers
    • 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
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/362—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum transversally to the transport direction, e.g. according to the width of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/525—Cost of application or use, e.g. energy, consumable

Abstract

A rotatable suction roller includes a main chamber divided into chamber sections by thin discs, a number of small holes in the roller outer surface and an a pair of tubes within the roller, coaxial with one another and with the outer surface, the inner tube being fixed relative to the roller and the flow tube (fig. 9) being a close rotating fit within the inner tube to allow different sets of holes in the inner and flow tubes to be lined up and hence selectively apply the low pressure to different ones of the chamber section to allow the roller to be used with different width of material, allowing chamber sections to be closed off when not required. The flow tube may be rotated by a selector gate and locked by a bolt. The roller may be used for feeding sheet material such as paper, foil and plastic film by the operator. This system minimises any wasted energy by only drawing air through the chamber sections along the roller length that are required for the width of material in use.

Description

Page 1
Field:
The invention would be used in the foowing industries: Packaging (food and general) Converting Laminating
Background of the Invention:
This invention relates to VAF (Variable Axial Flow) Vacuum roller. I was approached by a client, to produce a variation on an existing vacuum roller that allows various web lengths to be used. The VAF will allow the manufacturer to optimise vacuum efficiency and improve reliability of the vacuum source motor and fifter systems.
Statement of the Invention:
When a selector adjusts the internal parts, varied sections are either opened or closed to allow various lengths of film to be produced without wasting energy.
Advantages of the Invention: Compared with standard vacuum rollers the VAF saves energy and will increase the service ife of the suction pump and will be using only the absolute minimum energy required to produce films that are ess than the full width of the roller face. Another advantage with this system over a standard vacuum roller is that airborne particles are not pulled through the system via open areas on the roller face.
Introduction to drawings:
An example of the invention will now be described by referring to the accompanying drawings.
Fig 1.
Shows a standard vacuum ro'ler (half section view) with air flowing out of the main chamber (1) a'ong its full length, this means that the energy is wasted if a film is produced that is any length but the full width of the roller.
Fig 2.
Page 2 Shows the invention (half section view) with varied chamber sections that aow sections to be opened or closed as required by the operator. The airfbw is aowed to be varied between the full roer width, or centre section only, and or, steps between.
Fig 3.
Shows the invention (selector end with main body removed). When the s&ector cover sleeve (2) is positioned (as shown position 4) the holes in the guide flow tube (3) line up with holes in the inner tube (Fig 6) aUowing air to pass through on'y the chamber sections required for the current operation of the roUer.
Fig 4.
Shows the invention (selector end detail). The Fig shows the selector gate (4) with selector cover sleeve positioned at No 4 thus allowing air to pass through all 7 chambers.
Fig 5.
Shows the invention (flow end with main body removed -flow tube). This allows the air to be guided through the inner tube (Fig 6) via the selector gate\cover sleeve.
Fig 6.
Shows the invention (flow end with main body removed -inner tube). This allows the air to flow from the chamber sections and to be opened and closed via the flow tube.
Fig 7.
Shows the invention (flow end with main body removed and a section of the flow end shaft\inner tube and flow tube) Fig 8.
Shows the invention (with the main body\flow end shaft removed -with the inner shaft\flow tube and the guide pin (5) in view) Fig 9.
Shows the invention (with the flow tube and guide pin in view)
Description
Like a conventional vacuum roller (Fig 1) the invention allows air to be sucked through small holes on the roller main body. This chamber area is partitioned off on the VAF roller by means of thin discs (Fig 6/6a) that are pre-positioned to suit the customer requirements and fixed in position by welding to the inner tube. The vacuum flow can be Page 3 thrected by the means of a rotatable flow tube (Ag 9) made from a non stick material (RT.F.E) which is encbsed within a smooth bored inner tube (Fig 6) thus aowing a dose sliding fit between flow tube and inner tube. The flow tube has 1 open end and I end dosed off by means off a plug (Fig 2/7) that is attached to a guide pin (Fig 9/5). A series of holes are drilled along the flow tube length, these correspond with holes dril'ed in the inner tube to line up or close off ports as required by selection. This is governed by a selector gate (Fig 414a), which can be engaged via a selector cover sleeve (Fig 3/2) and guide pin (Fig 915). When rotated and locked into position by a bolt (Fig 3/6) the vacuum flow can be altered from a single chamber to mufti chambers a'ong its ength. Air is puUed through the system via a vacuum pump, and a flexib'e hose connected to a rotatable coupling attached to the open end of VAF vacuum ro'ler as a conventional vacuum ro'ler.
GB201009364A 2010-06-04 2010-06-04 Controlling the distribution of vacuum across the width of a suction roller Withdrawn GB2480865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201009364A GB2480865A (en) 2010-06-04 2010-06-04 Controlling the distribution of vacuum across the width of a suction roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201009364A GB2480865A (en) 2010-06-04 2010-06-04 Controlling the distribution of vacuum across the width of a suction roller

Publications (2)

Publication Number Publication Date
GB201009364D0 GB201009364D0 (en) 2010-07-21
GB2480865A true GB2480865A (en) 2011-12-07

Family

ID=42471155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201009364A Withdrawn GB2480865A (en) 2010-06-04 2010-06-04 Controlling the distribution of vacuum across the width of a suction roller

Country Status (1)

Country Link
GB (1) GB2480865A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581419A (en) * 1977-12-01 1980-12-10 Ibm Sheet transport apparatus
US5974684A (en) * 1997-02-05 1999-11-02 Voith Sulzer Papiermaschinen Gmbh Suction device
US6209867B1 (en) * 1999-08-18 2001-04-03 Hewlett-Packard Sliding valve vacuum holddown
DE10012743A1 (en) * 2000-03-16 2001-09-27 Ditzel Gmbh Transport roller for narrow strips of paper in cigarette making machine has rows of holes in its outer surface , rotatable perforated tubes beneath surface having different rows of perforations which can be connected with holes in surface
EP1415941A1 (en) * 2002-10-31 2004-05-06 M T C - Macchine Trasformazione Carta S.r.l. Method for activating the suction holes of rollers for paper converting machines and rollers for carrying out this method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1581419A (en) * 1977-12-01 1980-12-10 Ibm Sheet transport apparatus
US5974684A (en) * 1997-02-05 1999-11-02 Voith Sulzer Papiermaschinen Gmbh Suction device
US6209867B1 (en) * 1999-08-18 2001-04-03 Hewlett-Packard Sliding valve vacuum holddown
DE10012743A1 (en) * 2000-03-16 2001-09-27 Ditzel Gmbh Transport roller for narrow strips of paper in cigarette making machine has rows of holes in its outer surface , rotatable perforated tubes beneath surface having different rows of perforations which can be connected with holes in surface
EP1415941A1 (en) * 2002-10-31 2004-05-06 M T C - Macchine Trasformazione Carta S.r.l. Method for activating the suction holes of rollers for paper converting machines and rollers for carrying out this method

Also Published As

Publication number Publication date
GB201009364D0 (en) 2010-07-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)