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EP0498777A1 - Method for forming containers of undulated cardboard - Google Patents

Method for forming containers of undulated cardboard Download PDF

Info

Publication number
EP0498777A1
EP0498777A1 EP92830048A EP92830048A EP0498777A1 EP 0498777 A1 EP0498777 A1 EP 0498777A1 EP 92830048 A EP92830048 A EP 92830048A EP 92830048 A EP92830048 A EP 92830048A EP 0498777 A1 EP0498777 A1 EP 0498777A1
Authority
EP
European Patent Office
Prior art keywords
cardboard
mould
strip
sheet
punching
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Withdrawn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
EP92830048A
Other languages
German (de)
English (en)
French (fr)
Inventor
Massimo Marchesini
Massimo Armetti
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
Publication of EP0498777A1 publication Critical patent/EP0498777A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/247—Making webs in which the channel of each corrugation is transverse to the web feed by reciprocating members

Definitions

  • the present invention relates to the technical field concerning the formation of containers of undulated cardboard which are designed to hold products such as vials, bottles and the like.
  • Such containers are generally constituted by a sheet of cardboard, suitably undulated.
  • the surface opposite to that in which the recesses are made, is usually applied to a base also made of cardboard.
  • the base of cardboard usually has a couple of folding winglets hinged along the opposite sides and designed to close frontally the seats housing the products.
  • a method is used according to which a strip of cardboard is fed to at least one moulding device basically constituted by a chain assembly operated in an annular path and equipped with equidistant profiling transverse elements.
  • the profiling elements have a shape suited to define the profile of the recesses to be formed.
  • the strip of cardboard enters the forming device in the zone where said chain assembly moves in an arc of circumference.
  • the profiling elements are consequently caused to diverge to the outside, and then they can be reset in parallelism, so that relative portions of the cardboard strip are taken and clamped between the forming elements.
  • profiling elements cooperate with complementary and counterrotating means in the strip outlet zone.
  • This further strip of cardboard unrolls from a relative reel and is previously sprinkled with a suitable adhesive in such a way as to form the cited base. Finally, single portions are cut from the strip, which constitute as many containers.
  • profiling elements employed allow to obtain recesses which have only one prefixed profile, so that it is not possible to produce containers for containing together products of different shapes, e.g. vials and bottles, as it is often required.
  • such profile has constant section, so that it is not possible to produce containers for products with section differentiated axially.
  • a further limit is constituted by the necessity of working only with strips of cardboard wound on a reel.
  • the object of the present invention is to propose a method that allows to form containers of undulated cardboard in a very versatile manner, particularly as regards shape and dimensions of the recesses for housing the products.
  • a further object of the present invention is to propose a method for forming containers of undulated cardboard that can be performed by means of a simple technical solution, surely functional and reliable.
  • the cited objects are obtained by means of a method for forming containers of undulated cardboard characterized by the fact of including: feeding of one sheet of cardboard to a mould equipped with punching means which cooperate with a correspondent die matrix, said punching means being operated singularly in a functionally interdependent manner, in transverse direction in respect of said sheet of cardboard; operating in sequence said punching means, in such a way to realize subsequent foldings on said sheet of cardboard, the foldings being shaped as the spaces of said die matrix and being designed to form a succession of recesses which constitute the housing seats for respective products; opening of said mould advancing in step the sheet of undulated cardboard.
  • the described method allows to form containers with undulated cardboard in an extremely versatile manner, starting either from a strip or from blanks of cardboard.
  • the section of the recesses made on the sheet of cardboard can be any, thus allowing to meet the most different needs.
  • This method allows also to provide the realization of recesses that have a different section along their axis.
  • the subject method allows to perform, in a very easy way, the change of the size of the containers.
  • 1 indicates the strip of cardboard designed to be shaped according to an undulated shape, to form the housing seats of the containers being realized.
  • the strip 1 unwinds from a reel 2, supported rotatingly by a horizontal axle.
  • the strip 1 is fed to a mould 3 equipped with a plurality of punching means 4 arranged in line, one at the side of another, along the direction of the feed of the strip.
  • the punching means 4 are held slidingly by a plate 5 of the mould and are designed to cooperate with a correspondent plurality of spaces 6 made on a die matrix 7 of the mould.
  • the punching elements 4 and the spaces 6 have transversal dimensions at least equal to the width of the strip and are shaped in a way to define respectively the internal and external surfaces of the recesses 8 designed to form the housing seats for the products.
  • the punching elements 4 can be operated singularly, in a functionally interdependent manner, and perpendicularly to the strip to be shaped.
  • the plate 5 and the die matrix 7 of the mould can be operated in a way to come nearer to the strip 1 or to move away from it.
  • the cardboard strip 1 can slide between the plate 5 and the die matrix 7.
  • a loop 1a is made in the cardboard strip, upstream of the mould 3, between two rolls 9, this loop being designed to act as a compensating element during the working phase of the punching elements 4.
  • the strip 1 is made to advance in step by a trailing element 10 equipped with a couple of clamping means 11 and 12 (indicated only schematically, since they are of known type) designed to clamp the same strip, downstream of the mould 3.
  • the clamping means 11 and 12 are shaped like the internal and external surfaces of the recesses 8 respectively, and clamp one of them (figure 1a).
  • the clamping means are moved away to the position 11a, 12a (arrows B), and then moved back to the position 11b, 12b (arrows C), in which they are ready for a following clamping phase (arrows D).
  • each recess 8 causes a correspondent portion of the strip 1 to be pulled from the loop 1a, which acts consequently as a compensating element.
  • each punching element is subsequentely operated in such a way that it does not interfere with the precedent punching element working phase.
  • the operating seuqence can start either from one or the other end of the mould; otherwise the operating sequence can start from the middle of the mould, and then proceede toward the opposite ends.
  • the strip 13 indicated by a broken line in fig. 1a, unwinds from a relative reel and is provided with a layer of adhesive, supplied by spreading means 14.
  • Figure 2 illustrates an operational variation of the described method, which provides forming the containers from precut blanks of cardboard 15, prearranged to desired dimensions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP92830048A 1991-02-08 1992-02-05 Method for forming containers of undulated cardboard Withdrawn EP0498777A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO910038A IT1245762B (it) 1991-02-08 1991-02-08 Metodo per formare contenitori di cartone ondulato.
ITBO910038 1991-02-08

Publications (1)

Publication Number Publication Date
EP0498777A1 true EP0498777A1 (en) 1992-08-12

Family

ID=11337240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830048A Withdrawn EP0498777A1 (en) 1991-02-08 1992-02-05 Method for forming containers of undulated cardboard

Country Status (3)

Country Link
EP (1) EP0498777A1 (it)
JP (1) JPH0557824A (it)
IT (1) IT1245762B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688370A5 (de) * 1995-01-30 1997-08-29 Alusuisse Lonza Services Ag Verfahren zur Herstellung einer zellenfoermigen Platte
CN115416373A (zh) * 2022-10-08 2022-12-02 灌云利民再生资源科技发展有限公司 一种高强度竖瓦楞纸板的连续生产系统

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB250767A (en) * 1925-05-02 1926-04-22 Frederick James Commin Improvements in means for corrugating roofing and like sheets
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2359650A (en) * 1942-11-21 1944-10-03 American Coach & Body Company Apparatus for bending metal
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
GB662421A (en) * 1949-08-12 1951-12-05 Packmat A G Olten Improvements in or relating to the manufacture of corrugated inserts for use, for example, as packing in boxes and the like
US3123125A (en) * 1964-03-03 Method and apparatus for feeding metal strips
US3511073A (en) * 1965-09-20 1970-05-12 Dro Eng Co Di Hydraulic die control structure
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
CH639337A5 (en) * 1979-07-25 1983-11-15 Owell Pack Ag Corrugating apparatus on a machine for the production of an unfoldable flat pack

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123125A (en) * 1964-03-03 Method and apparatus for feeding metal strips
GB250767A (en) * 1925-05-02 1926-04-22 Frederick James Commin Improvements in means for corrugating roofing and like sheets
GB454229A (en) * 1935-03-25 1936-09-25 Cyril Terence Delaney Improvements in or relating to the manufacture of radiators for internal combustion engines
US2510024A (en) * 1940-03-27 1950-05-30 Mayer Eugene Means for corrugating metal sheets
US2359650A (en) * 1942-11-21 1944-10-03 American Coach & Body Company Apparatus for bending metal
GB662421A (en) * 1949-08-12 1951-12-05 Packmat A G Olten Improvements in or relating to the manufacture of corrugated inserts for use, for example, as packing in boxes and the like
US3511073A (en) * 1965-09-20 1970-05-12 Dro Eng Co Di Hydraulic die control structure
US3748889A (en) * 1971-11-29 1973-07-31 Caterpillar Tractor Co Apparatus for deforming sheet material
CH639337A5 (en) * 1979-07-25 1983-11-15 Owell Pack Ag Corrugating apparatus on a machine for the production of an unfoldable flat pack

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688370A5 (de) * 1995-01-30 1997-08-29 Alusuisse Lonza Services Ag Verfahren zur Herstellung einer zellenfoermigen Platte
CN115416373A (zh) * 2022-10-08 2022-12-02 灌云利民再生资源科技发展有限公司 一种高强度竖瓦楞纸板的连续生产系统

Also Published As

Publication number Publication date
ITBO910038A0 (it) 1991-02-08
ITBO910038A1 (it) 1992-08-08
JPH0557824A (ja) 1993-03-09
IT1245762B (it) 1994-10-14

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