MXPA97000361A - An impregnated and dented cutting strip for a car folding box - Google Patents

Abstract

The present invention relates to a toothed cutting strip for a cardboard, wherein the strip comprises paper or cardboard impregnated with formaldehyde

Description

AN IMPREGNATED CUTTED CUTTING STRIP FOR A FOLDING CARTON BOX The invention relates to a cut-in stripe strip for a folding cardboard box, to the use of a material in the formation of the strip and to a method and apparatus for applying a cutting strip to a folding cardboard box. It is known to apply a metal cutting strip for a folding carton box used for an adhesion film, so that the adhesion film that is removed from the carton can be cut using the metal cutting strip. The cutting strip can be applied by a machine, for example the Faustel D 17 Edger. In the machine, the metal sheet that comes from a roll is advanced passing between driven rollers. The blade enters a guide comprising a shallow groove. The guide is angled down, at its end, and directs the blade between a block and a lower die. A superior die can move to cut the blade. The upper die also includes pins that pass through the block and the lower die to pierce the blade before it is cut. This piercing action creates teeth that extend downward, around each perforation. When the superior die has cut a P1039 / 97MX - pulls from the sheet, the strip is held on the die by suction action and is carried to the mold of the cardboard box, where the pressure on the upper side forces the teeth into the mold. pattern of the cardboard box to mechanically fix the metal strip to the cardboard box. The known method is relatively slow and the metal strip flattens the dice relatively quickly, so they must be sharpened again. According to one aspect of the invention there is provided a method for applying a cutting strip to a pattern of a folding cardboard box, comprising advancing a substrate consisting of a sheet of cutting strip material, having adhesive sides on the same and a release sheet placed on the adhesive, remove or remove the release sheet in front of a cutter, cut the cutting strip material to form a strip using the cutter and make the side that carries the adhesive on the strip get in contact with the pattern of the folding cardboard box. In this form, the substrate material need not be metallic, but may be of any desired suitable material which may, for example, be cut more easily than metal. The piercing step of the known method is not required. By omitting P1039 / 97MX this step and the possibility of using material that can be cut easily means that productivity can be increased considerably by the method of the invention. Preferably, the release sheet is removed just in front of the cutter. This avoids the possibility that the side carrying the adhesive, in the cutting strip material, accumulates dust or debris or adheres to the machine before it is cut and applied to the folding box pattern. The substrate can be advanced in any suitable manner and, in a preferred embodiment, the substrate is advanced by pulling the part of the release sheet that has been removed from the cutting strip material. Preferably, a light evaporation oil is applied to the cutting strip material, before the cutting step. This has a lubricating effect on the cutting operation. According to another aspect of the invention there is provided an apparatus for carrying out the method of the first aspect of the invention. According to a further aspect of the invention there is provided a Faustel D17 Edger machine having an extension in the lower wall of the feeding material guide groove, the extension extends the wall P1039 / 9-7MX and provides a release edge in a position adjacent to the path of the cutting die. The typical Faustel D17 Edger machine has a guide groove that ends too far from the path of the cutting die, to avoid adhesion problems if the edge of the lower wall of the guide groove is used to remove the release sheet. The use of an extension allows a strip strip material with a release sheet to be used effectively. Preferably, a means is provided for applying a high evaporation oil to the feed material before it enters the machine. According to another aspect of the invention there is provided an apparatus for cutting and applying a cutting strip to a pattern for folding cardboard box, from a substrate comprising a sheet of a cutting strip material having adhesive on one of the sides thereof and a release sheet on the adhesive, the apparatus comprises a means for advancing a substrate sheet, a cutter and an edge facing the cutter and a means for removing the release sheet from the edge. Preferably, the edge is immediately in front of the cutter.

P1039 / 97MX The advancing means and the withdrawal means may be different but, preferably, the advancing means comprises the withdrawal means. The removal means may comprise a pair of rollers. The apparatus can be any suitable apparatus and can be the Faustel D17 Edger, for example. In this case, the removal means and the advancing means preferably comprise the feed rollers of the machine. The apparatus of preference further includes a means for applying a high evaporation oil to a cutting strip material. The cutting strip material may be of any suitable type and may comprise any impregnated paper or impregnated paperboard and / or may comprise a mixture of acrylic resin and urea formaldehyde with a structural filler, such as paper or paperboard. This gives sufficient stiffness to be used as well as to provide sharp and sufficiently strong teeth on the edge from which it can be cut. According to a further aspect of the invention there is provided a cut-in stripping strip for a folding cardboard box, the strip comprising a paperboard or impregnated paper. Preferably, the strip comprises an impregnated paper. Paper or cardboard can be impregnated with P1039 / 97MX resin. The paper or paperboard can be impregnated with one of the acrylic resin or the urea formaldehyde or preferably with both. Other resins that can be degradable can also be used. The strip preferably has adhesive on one side thereof and may have a release sheet on the adhesive. The cutting strip is preferably recyclable together with the box that can be made of cardboard or corrugated cardboard. The impregnation can add from 42.5 to 67.5% by weight of the additional material. According to another aspect of the invention there is provided a cut-out stripe for a folding cardboard box pattern, the cutting strip comprises a mixture of acrylic resin and urea formaldehyde with a structural filler, for example paper or cardboard. The strip can comprise 60 to 70% by weight of structural filler. From another aspect, the invention provides the use of a material comprising a mixture of acrylic resin and urea formaldehyde with a structural charge, such as paper or cardboard, in the formation of a cutting strip for a pattern of a cardboard box folding.

I P1039 / 97 X From another aspect, the invention provides the use of a material comprising a cardboard or impregnated paper, in the formation of a cutting strip for a folding cardboard box pattern. The material can comprise not less than 65% paper. The material can have a thickness between 0.2 and 0.5 mm preferably between 0.25 to 0.4 mm. The strip may be capable of bending without breaking on a rod with a diameter of 20 mm. According to still another aspect of the invention, a cutting strip for a folding cardboard box pattern is provided, the strip has a thickness of 0.2 to 0.5 mm and is capable of bending without breaking, when passing over a rod of a diameter of 20 mm. The combination of strength and flexibility is particularly important and advantageous. The strip can have a thickness less than 0.4 mm and can be bent without breaking when passing over a rod with diameters of 12.5 mm. The strip preferably complies with the Impact Test, Indentation BS 6222 1988. Additionally or alternatively, the strip can comply with the Scratch Test BS 6222 1988, 3.0 N. Also, additionally or alternatively, the strip can meet with the BS 6250 Union Test Part 3 Grade 4.

P1039 / 97MX The strip can be provided with adhesive on one side thereof and has a release sheet on the adhesive. An embodiment of the invention will now be described by way of example and with reference to the accompanying drawing, which is a schematic lateral elevation of the apparatus of the embodiment. Apparatus 10 is an adapted Faustel D17 Edger machine. The apparatus 10 comprises an upper die and a lower die 12, 14, a block 16, a guide plate 18 and an extension plate 20. A roll 22 of a substrate sheet material 24 is provided. The substrate sheet material 24 comprises a strip strip material 26 that is completely coated with adhesive on one side, the adhesive is covered by a release paper 28. The cut strip material 26 can be a mixture of paper, acrylic resin and urea formaldehyde with other degradable resins. The material may include paper, as a structural filler, in an amount of about 65%. The appropriate material is the 700 SNS reference material available from Armabord Limited in a thickness of 0.3 to 0.35 mm. (As an alternative you have 700 INS materials, 300 SNS and 300 INS). The block 16 and the guide plate 18 define a shallow horizontal groove 30 therebetween. At P1039 / 97MX - front edge 32 of the guide plate 18, the lower surface 34 of the block 16 is angled downwards and then continues horizontally towards its front face 36.

The extension plate 32 is connected to the underside of the guide plate 18 and extends forwardly adjacently on the front face 36 of the block 16. The lower die 14 is stationary and is fixed below the guide plate 18 and the extension 20, to leave a slot 38 t, between them. The upper die 12 moves vertically and moves beyond the front face 36 of the block 16 and the end of the extension plate 20 to cut against the lower die 14. The upper die 12 includes a row of perforations (not shown) which are connected to a suction pump (not shown). The upper and lower dies 12, 14 have notched cutting surfaces. (4) An application surface 39 is provided under the upper die 12. A channel 40 is provided in front of the entrance of the slot 30. The channel 40 includes a plush applicator pad 42 that communicates with the interior of the channel. contains a light evaporation oil such as Esso Bayol 35. The parallel drive rollers 44, 45 are also provided in front of the slot 30. The roller Upper P1039 / 97MX 44 is arranged to be driven clockwise, and lower roller 45 is positioned to be driven in the opposite direction. During use, the substrate sheet 24 is removed from the roll 22 and passed under the applicator pad 42 and into the slot 30. At the front edge 46 of the extension plate 20, the release paper 28 is it withdraws from the cutting strip material 26 and is folded around the front edge 46 and again through the slot 38. The release paper 28 is then wound, clockwise, onto the upper drive roller 44. and, in the opposite direction, on the lower roller 45. The excess cutting strip material 26 is removed by cutting. When the machine is in operation, the drive rollers 44, 45 will rotate through a predetermined angle to pull the release paper 28. As the strip material 26 is sufficiently rigid in relation to the adhesive force provided by the adhesive between the release paper 28 and the cutting strip material 26, the cut strip material will be separated from the release paper 28 at the front edge 46 of the extension plate 40, so that a portion of the strip material cut 26 projects from slot 38, and its lower face carries the adhesive. The superior die P1039 / 97MX "* ~~ * 2 is driven downward and cuts the cutting strip material 26 projecting against the lower die 14. The cutting strip is held on the upper die 12 by suction of the suction pump and is taken down to a white piece for a foldable carton that waits on the surface 29, to which it will be fixed by contact by means of the adhesive of its lower surface.When retracting the upper die 12, the rollers of JLmpulsion 44 rotate through of an additional angle to cause another section of the cutting strip material to extend, from slot 38, for cutting and applied to another white piece of cardboard Light evaporating oil from channel 40 lubricates the cutting action of dice 12, 14. The components that have been added, compared to a standard Faustel D17 Edger machine, are , - ^ the extension plate 20 and the channel 40. The drive rollers 44, 45 would normally receive the sheet metal feedstock from a roll 22 which will be driven by the rollers 44, 45, towards the interior of the slot 30. The Faustel D17 Edger machine also includes pins that are mounted together with the upper die 12 and extend through the perforations in the block 16 and the lower die 14, to pierce the metal material re it is cut and apply to a P1039 / 97MX folding cardboard box pattern. These pins are removed in the adapted machine. While a particular cutting material has been described, other alternative materials that are intended to be covered by this application will be apparent to those skilled in the art. In particular, the strip can be formed from any suitable rail made of recyclable material, coated on one side and in turn covered by a release paper. The strip can be of any width, length and thickness that allows it to be cut effectively. The strength of the strip can be controlled to pass one or more of the following tests: a) Indentation Test BS 6222 - without surface damage 1988 Impact b) Scratch Test BS 6222 1988 - 3.0 Newtons c) Flexibility (width) - One 19 mm strip should 0.35 mm bend over a 12.5 mm rod but break over, a 9.5 mm rod. 0.4 and 0.45 mm - Must be bent on a 20.0 mm rod b) Binding test BS 6250 - Grade 4. Part 3 P1039 / 97MX In this way the material allows enough phylum on the teeth to penetrate the film to be cut. The strip can receive an impression on it.

P1039 / 97MX

Claims (44)

1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, the content of the following CLAIMS is claimed as property; 1. A cut-in stripsheet for a pattern of a foldable carton, the strip comprises a paperboard or impregnated paper.
2. 2. A cutting strip according to claim 1, wherein the paper or paperboard is impregnated with resin.
3. 3. A cutting strip according to claim 2, wherein the paper or board is impregnated with acrylic resin.
4. 4. A cutting strip according to claim 1, 2 or 3, wherein the paper or paperboard is impregnated with urea formaldehyde.
5. A cutting strip according to any one of the preceding claims, wherein the paper or paperboard is impregnated with at least one biodegradable resin.
6. 6. A cutting strip according to any of the preceding claims, wherein the impregnation adds from 42.5 to 67.5% by weight of additional material.
7. 7. A cutting strip according to any of the preceding claims, wherein the strip comprises impregnated paper. P1039 / 97MX '""'
8. 8. A cut-in strip for a folding cardboard box pattern, the cutting strip comprises a mixture of acrylic resin and urea formaldehyde with a structural filler.
9. 9. A cutting strip or the use of a material according to claim 8, wherein the mixture further comprises at least one biodegradable resin.
10. 10. A cutting strip according to the claims < 8 or 9, wherein the strip comprises 60 to 70% by weight of a structural filler.
11. 11. A cutting strip according to claims 8, 9 or 10, wherein the structural load is paper.
12. 12. The use of a material comprising a paper or cardboard impregnated in the formation of a cutting strip for a pattern of a folding cardboard box.
13. 13. The use of a material according to claim 12, wherein the paper or board is impregnated with resin.
14. 14. The use of a material according to claim 13, wherein the paper or cardboard is impregnated with acrylic resin.
15. 15. The use of a material according to claims 12, 13 or 14, wherein the paper or paperboard is impregnated with urea formaldehyde. P1039 / 97MX
16. 16. The use of a material according to any of claims 12 to 15, wherein the paper or paperboard is impregnated with at least one biodegradable resin.
17. 17. The use of a material according to any of claims 12 to 16, wherein the impregnation adds 42.5 to 67.5% by weight of an additional material.
18. 18. The use of a material according to any of claims 12 to 17, wherein the strip comprises ^ impregnated paper.
19. 19. The use of a material, comprising a mixture of acrylic resin and urea formaldehyde with a structural filler, in the formation of a cutting strip for a folding cardboard box pattern.
20. The use of a material according to claim 19, wherein the mixture further comprises at least one biodegradable resin. (
21. 21) The use of a material according to claim 19 or 20, wherein the strip "comprises 60 to 70% by weight of a structural filler
22. 22. The use of a material according to claims 10, 20 or 21, wherein the structural load is paper
23. 23. A cutting strip according to any of claims 1 to 11, wherein the strip has a thickness of between 0.2 to 0.5 mm. P1039 / 97MX * "~
24. 24. A cutting strip according to claim 23, wherein the strip is capable of bending without breaking on a rod of 20 mm in diameter
25. 25. A cutting strip for a folding cardboard box pattern , the strip has a thickness of 0.2 to 0.5 mm and is capable of bending without breaking on a rod of 20 mm in diameter
26. 26. A cutting strip according to claims 23, 24 or 25, wherein the strip It has a thickness of less than 0.4 mm and can be bent without breaking on a 12.5 mm diameter rod
27. 27. A cutting strip for a folding cardboard box pattern according to any of claims 23 to 26, wherein the strip complies with the Indentation Test BS 6222 1988 of Impact
28. 28. A cutting strip for a folding cardboard box pattern according to any of claims 23 to 27, wherein the strip complies with the Scraping Test. BS 6222 1988 3.0 N.
29. 29. A cutting strip for a folding cardboard box pattern according to any of claims 23 to 28, wherein the strip complies with the BS Bonding Test 6250 Part 3 Grade 4.
30. 30. A cutting strip according to any of claims 1 to 11 and 23 to 29, wherein the strip has P1039 / 97MX • adhesive on one side of it and has a release sheet on the adhesive.
31. 31. A method for applying a cutting strip to a folding cardboard box pattern, comprising: advancing a substrate comprising a sheet of cutting strip material having adhesive on one side thereof and a release sheet on the adhesive; remove the release sheet when in front of a cutter; Cut the cutting strip material to form a strip with the cutter, and put the side that carries the adhesive in contact with the pattern for a folding cardboard box.
32. 32. A method according to claim 31, wherein the release sheet is removed when it is in front of the cutter.
33. 33. A method according to claims 31 or 32, wherein the substrate is advanced by pulling the part of the release sheet that has been removed from the cutting strip material.
34. 34. A method according to claims 31, 32 or 33, wherein a light evaporation oil is applied to the cutting strip material, before the cutting step.
35. 35. An apparatus for carrying out the method according to claims 31 to 34.
36. 36. A Faustel D17 Edger machine having an extension on the lower wall of the guide groove of P1039 / 97MX, the extension extends into the bottom wall and provides an edge to remove the release blade, in a position adjacent to the path of the cutting die.
37. 37. A machine according to claim 36 wherein a means for applying a high evaporation oil to the feed material is provided, before it enters the machine.
38. 38. An apparatus for cutting and applying a cutting strip to a pattern for a folding cardboard box, from a substrate, comprising a sheet of cutting strip material having adhesive on one side thereof and a sheet of release on the adhesive, the apparatus comprises: means for advancing a substrate sheet, a cutter, an edge facing the cutter and a means for removing a release sheet away from the edge.
39. 39. An apparatus according to claim 38, wherein the edge is immediately opposite the cutter.
40. 40. An apparatus according to claim 38 or 39, wherein the advancing means comprises means for removing the release sheet.
41. 41. An apparatus according to claims 38, 39 or 40, wherein the means for removing the release sheet comprises a pair of rollers. P1039 / 97MX
42. 42. An apparatus according to claims 38 to 41, wherein the apparatus is the Faustel D17 Edger machine.
43. 43. An apparatus according to claim 42, wherein the means for removing the release sheet and the advancing means are comprised by the feed rollers of the machine.
44. 44. An apparatus according to any of claims 38 to 43, wherein the apparatus includes -in addition means for applying a high evaporation oil to a cutting strip material. P1039 / 97MX