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
  • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
  • B65B61/14—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for incorporating, or forming and incorporating, handles or suspension means in packages
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
  • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
  • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations

Definitions

• the invention concerns a method of severing adhesive strips and its object is to provide such a method which in comparison with the prior art, enables an improved ratio of unwinding rate to production rate and the use of supply rolls with strip material for several production units.
• the severing is effected from a supply strip, whose width is significantly greater than the width of the desired strip, by cuts forming side edges on the latter.
• the cuts are made at right angles to the side edges of the supply strip, as stated in claijn 7, each severed strip just requires an unwinding movement corresponding to the width of the strip, which is in most cases many times as small as its length. If the cuts are made obliquely with respect to the edges of the supply strip, the length of the cut strips will be greater than the width of the supply strip, and a correspondingly longer unwinding movement per cut strip is therefore required.
• the strips are to be used e.g. for sealing the lid of cans or the like, it is expedient that they have a non-adhesive end portion which can easily be gripped when the strip is to be torn off.
• Such an end portion can be provided in a simple manner by carrying out the method as stated in claim 2.
• the supply strip should preferably be subjected to such treatment as is stated in claim 3, so that the handles will get a non-adhesive central portion and two adhesive end portions in a known manner.
• Claims 4, 5 and 6 define three ways of effecting the stated treatment.
• a supply roll of finished handle material may also be used.
• a known machine for making handles is shown and described in the NO B 131 330.
• a paper strip whose width is equal to the length of the non-adhesive central portion of the handle is advanced in a direction perpen ⁇ dicular to an adhesive strip, which is conventionally advanced in the longitudinal direction of the cut strips.
• This operation thus requires two separate web advancing mechanisms and control means to ensure proper positioning of the two strips with respect to each other.
• fig. 1 is a schematic and perspective view of an apparatus for performing the method of the invention
• fig. 2 shows means for performing a special embodiment of the method of the invention
• fig. 3 shows a can with a sealing strip manufactured in this manner
• fig. 4 illustrates a known method of making carrier handles
• fig. 5 shows the making of carrier handles by the method of the invention
• figs. 6 and 7 are schematic and perspective views of devices for performing their respective embodiments of the method of the invention.
• figs. 8 and 9 show box-shaped packages with applied handles made by the apparatus shown in fig. 6 and in fig. 7 , respectively.
• the numeral 10 designates a supply roll of strip material 11, on whose underside a layer of adhesive is applied.
• the material is pulled off the supply roll by means of a motor driven pair of rollers 12, from which it runs over a tightening roller 13 and an additional
• O?*.PI roller 14 to an advancing assembly which, in the embodi ⁇ ment shown, consists of two sets of jaws which each comprise two pairs 15 and 16 and are disposed at their respective side edges of the web of material.
• One jaw pair in each set is stationary and the other is reciproc- able in the direction of the web, and the material is advanced in a known manner by alternate opening and closing of the pairs of jaws in reverse order.
• the material is advanced stepwise to a cutter consisting of a fixed upper knife 17 and a movable lower knife . 18. If the web of material is sufficiently rigid, the jaw assembly might perhaps be replaced by a pair of intermittently operating rollers.
• the tightening roller 13, which is movable up and down as indicated by a double arrow 19, provides for suitable tightening of the web and can control the velocity of the pull-off rollers 12 in a generally known manner.
• the width of the cut strip can be varied by changing the advancing step length of the web.
• Fig. 2 shows a part of an apparatus similar to the one shown in fig. 1 with a tightening roller 13 and a guide roller 14 for a web 11 of material, but the apparatus is here supplemented with a folder 20 which is placed at one side edge of the web and folds an edge strip
• Fig. 4 shows a carrier handle 27 consisting of a self- adhesive strip whose central portion is covered by a piece of paper 28.
• a carrier handle can, as indicated, be made in a known manner, as indicated, by cutting from a supply roll 29 of self-adhesive strip material on whose adhesive side pieces of paper 28 are placed in spaced relationship.
• Fig. 5 shows a corresponding carrier handle 27 made according to the invention by cutting from a supply roll 30 of self-adhesive strip material whose central eb is coated with a paper strip 31 on the adhesive side.
• the strip supply has a width equal to the length of the handle cut off.
• a supply roll of finished handle material said material can be made during feeding to the cutter, e.g. as shown in fig. 6 by means of an apparatus like the one shown in fig. 1 with a pair of pull-off rollers 12, a tightening roller 13, a guide roller 14 and a cutter 17, 18.
• a second supply roll 32 of a paper strip 31 which is advanced by the pull-off roller 12 on the adhesive underside of the strip 11 tq form a strip of handle material of the same type as the one shown in fig. 5.
• Fig. 8 shows a handle strip 27 applied to a box-shaped package 33 so as to form an arc over the package.
• FIG. 7 A further development of the apparatus of fig..6 is shown in fig. 7 and also has supply rolls 10 and 32 of an adhesive strip 11 and a paper strip 31, respectively, pull-off rollers 12 and a tightening roller 13.
• rollers 34 which each extend across about half the strip web 11 and which form such an angle with each " other that they affect the two web halves with a power component directed against the centre of the web to form a central fold 35, which increases in the feed direction, on the combined web of material here designated by 37.
• Two additional, inclined rollers 36 have the opposite effect and serve to stabilize the fold formed by the rollers 34 when the fold has reached a predetermined size.
• the two pairs of rollers 34 and 36 thus coact in forming a longitudinal central fold 38 on the web 37.
• the fold 38 is ironed against the web by a pressure roller 39, and if the web material is not of such a nature that the fold automatically remains in this position, it can be kept in it by means of an additional adhesive strip 40 of slight adhesiveness supplied from a supply roll 41.
• a handle 42 cut from the folded web of material 37 is shown as applied to a box-shaped package 43.
• the fold 38 causes the handle to flatly engage the top side of the package instead of forming an upwardly extending arc like in fig. 8. That the handle is thus kept close to the package diminishes the risk of damage under possible subsequent automatic handling of the parcel and facilitates the stacking of the parcels on pallets or in cartons.
• Webs for the making of handles may also be produced in other ways than by coating the central portion of an adhesive strip with a paper strip as described in the foregoing.
• a powdered or liquid material which neutralizes the adhesiveness may be applied by spraying.
• Another possi ⁇ bility is to apply the glue during the feeding of the strip from the supply roll to the cutter and just apply glue at the points where it is needed, viz. along the edges.
• Devices for application of glue and devices for spraying neutralizing powders or liquids are well-known and will not be described here.

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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• 1983
  • 1983-04-11 DK DK157983A patent/DK157983A/da not_active IP Right Cessation
• 1984
  • 1984-04-10 JP JP59501683A patent/JPS60501003A/ja active Pending
  • 1984-04-10 WO PCT/DK1984/000026 patent/WO1984004085A1/en not_active Application Discontinuation
  • 1984-04-10 AU AU28169/84A patent/AU2816984A/en not_active Abandoned
  • 1984-04-10 EP EP84901578A patent/EP0139708A1/de not_active Withdrawn
  • 1984-04-10 IT IT20464/84A patent/IT1175996B/it active

Non-Patent Citations (1)

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