WO1995033652A1 - Procede et appareil de separation des films de protection d'avec des etiquettes adhesives - Google Patents

Procede et appareil de separation des films de protection d'avec des etiquettes adhesives Download PDF

Info

Publication number
WO1995033652A1
WO1995033652A1 PCT/IT1995/000094 IT9500094W WO9533652A1 WO 1995033652 A1 WO1995033652 A1 WO 1995033652A1 IT 9500094 W IT9500094 W IT 9500094W WO 9533652 A1 WO9533652 A1 WO 9533652A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
scrap
film
sheet
line
Prior art date
Application number
PCT/IT1995/000094
Other languages
English (en)
Inventor
Bruno Losi
Original Assignee
Bruno Losi
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 Bruno Losi filed Critical Bruno Losi
Priority to EP95920213A priority Critical patent/EP0711238A1/fr
Priority to AU25747/95A priority patent/AU2574795A/en
Publication of WO1995033652A1 publication Critical patent/WO1995033652A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0006—Removing backing sheets

Definitions

  • the present invention relates to an method for the separation of scrap film from a dinked sheet of adhesive film on a support film, in particular for the production of adhesive labels.
  • the present invention relates furthermore to an apparatus for carrying out said method. Description of the prior art
  • labels exist in which the scrap film is removed manually by the - 2 - producer after dinking and a transparent adhesive film, known as application tape, having an adhesive strength that is inferior to the adhesive strength which the film exerts on the final application surface, is placed on the remaining adhesive film.
  • an apparatus described in patent application FI/91/A/000086 in the name of the same applicant, has been constructed for the automatic removal of the scrap film of dinked adhesive labels.
  • the described apparatus comprises two suction surfaces, at least one of which is cylindrical, which have relative rolling movement.
  • a template is present to block the suction of the portion corresponding to the form of the design or writing of the label.
  • the dinked sheet is passed between the two suction surfaces so that the writing or design coincide with the template. Therefore, as the sheet passes, the scrap film detaches from the silicone coated support film and adheres to the suction surface on which the template is present.
  • the silicone coated support film adheres to the other suction surface without the portions of adhesive film which constitute the design or writing of the label detaching from it. This is because the template prevents a force of detachment from working on the label.
  • a first object of the present invention is to provide a method for the separation of scrap film from a dinked sheet of adhesive film on a support film, in particular for the production of adhesive labels, which is able to overcome the above-mentioned inconveniences, allowing for automation of the scrap removal step during preparation of said labels.
  • a second object of the present invention it to provide an apparatus to carry out the above-mentioned method.
  • the support film carrying with it only the portions of adhesive film which constitute the design or writing of the label; removal of the scrap film from the suction surface.
  • the execution of a plurality of light punchings distributed on the portions of adhesive film which constitute the scrap film is carried out.
  • the second object is accomplished by the apparatus according to the invention the novel features of which are that, along at least one line of the suction surface, suction points are provided which are independent from the remaining part of the surface and that a body is provided which is mobile with respect to said surface and has a suction mouth suited to bring it into correspondence with said line.
  • Means for drawing the scrap film from the suction surface, means for drawing the sheet deprived of the scrap film from the mobile body, and command means of the suction in correspondence with said surface, said line and said mouth are advantageously provided.
  • the mobile body rollingly engages on said suction surface and is substantially cylindrical having a suction mouth extending along one of its generatrices.
  • gripping means of the support film are provided auxiliary to the suction force exercised by the mouth itself.
  • FIG. 1 shows a top plan view of a label prepared for scrap removal with the method according to the invention
  • figure 4 shows a simplified top plan view of the step of figure 3;
  • FIG. 5 shows a longitudinal sectional view of an example of a punching step during the dinking of the label from which the scrap is to be removed;
  • FIG. 6 shows a longitudinal sectional view of an example of a variation of embodiment of the steps of figures 2 and 3;
  • FIG. 7 shows a perspective view of an apparatus according to the present invention
  • FIG. 8 shows a lateral elevation view of the apparatus of figure 7 in two successive operative steps
  • - figures 10 and 11 show respectively a partial longitudinal sectional view and a partial transversal sectional view of the apparatus of figure 7 in correspondence with the suction mouth and detachment of the scrap from the silicone coated support;
  • figure 12 shows a perspective view of a bush forming the suction mouths of figures 10 and 11;
  • - figure 13 shows the auxiliary means for gripping the label according to a variation of the embodiment of the apparatus of figure 10.
  • an adhesive label forming a design or writing is obtained starting with a sheet 1 comprising a silicon coated support 2 on which is applied an adhesive film 3 which has been dinked according to a cut which separates it into two portions: label A and scrap 4.
  • a first step during the dinking, it is preferable to execute a plurality of light punchings 5 distributed on the portions of adhesive film 3 which make up scrap 4.
  • Said punching fulfils the purpose of allowing small quantities of air to penetrate between scrap 4 and support 2 in order to considerably reduce the suction cup effect which would be created in the case of their detachment since two opposing forces would be exercised in directions orthogonal to them.
  • the punchings are carried out on scrap 4 in proximity to the dinked lines in order to facilitate the entry of air at the time of detachment of support 2 and the portion of film 3 which forms scrap 4.
  • FIG. 5 An example of how to form punchings 5 directly during the dinking of sheet 1 is shown in figure 5.
  • the knife 6 of the hollow punch is flanked by a punch 6a which punches the sheet from the side of scrap 4 simultaneously to the cutting of adhesive film 3 by the knife 6 itself.
  • Punchings 5, besides being substantially in the form of a round point as shown in figure 1, can also be elongated to the form of a rectilinear or curvilinear segment.
  • Template 8 has, therefore, the function of closing suction holes 9 of surface 7 in an area having a form and position corresponding to the negative of scrap 4 (in this case letter A), when sheet 1 rests there.
  • Sheet 1 therefore, is placed on suction surface 7 with the nonadhesive side 3a of the film in contact with template 8 and scrap 4 to be removed coinciding with the negative 8a of template 8. In this way only scrap 4 is pulled away by suction surface 7, since template 8 has closed punchings 9 corresponding to the position and the form of the negative of scrap 4.
  • the detachment occurs, in fact, by applying opposing forces 12 and 13 (fig. 3) , in correspondence with line 10, respectively to support film 2 and the portion of adhesive - 8 - film 3 constituting scrap 4.
  • Force 12 can be exercised by a suction mouth 14 which produces a suction force 12a and is subjected to a force 12b having the same direction and pulling away from scrap 4 which adheres to surface 7 with adhesive face 3b turned in the opposite direction of surface 7.
  • Support 2 is dragged away by mouth 14 carrying with it only the portions of adhesive film 3 which constitute the design or writing of the labels, in this case the letter A.
  • template 8 coincides exactly with the negative 4a of scrap 4 or, in other words, the space left empty by the letter A which adheres to support 2.
  • support 2 with label A still adhering to it is placed aside in order to apply an application tape onto it which completes the preparation of the label making it ready for the user.
  • scrap 4 is removed from the suction surface to allow for scrap detachment from a subsequent dinked sheet.
  • An advantageous system for preparing template 8 is to completely dink a sheet 1 so that the cut extends also to silicon coated support 2 (e.g. dinking two superimposed sheets 1) . Then, removing silicone coated support 2 only in correspondence with the writing or design A, sheet 1 is placed with adhesive side 3b facing suction surface 7 and aligned with the position which sheet 1 must assume to have the scrap removed. Once writing or design A has adhered to surface 7, scrap 4, which was not able to adhere to it because of the presence of silicone coated support 2 having a form identical to it, is removed.
  • mouth 14 can be mounted on a cylinder 22 which rolls on sheet 1 and on which a further - 9 - template 4b, having a form identical to scrap 4, is applied.
  • template 4b presses against support 2 bending it in correspondence with the lines of the dinking on the side of the scrap and further facilitating the entry of air between the latter and support 2.
  • the method according to the invention can be automated since all the above- mentioned steps can be carried out by mechanical means.
  • the automatic scrap removal method carried out by means of the known apparatus described in the introduction according to the present invention it is possible to eliminate the inconveniences of having to exercise strong suction forces to overcome the strong adhesion between the silicone coated support and the adhesive film caused by the total absence of air between them and the loss of air to which the suction surfaces are subjected.
  • an apparatus 21 is suited to separate scraps 4 from a dinked sheet 1 of adhesive film on a support film 2, in particular for the production of adhesive labels.
  • Apparatus 21 comprises a flat suction surface on which a template 8 is applicable corresponding to the negative of scrap 4 (see figures 1 to 6) and, therefore, having a form and position coinciding with the writing or design of the label which, in this example, is the letter A.
  • a mobile cylindrical body 22 comprising a suction mouth 14 formed by a plurality of holes 14a located along one of its generatrices and communicating with a suction chamber 23.
  • Body 22 rollingly engages on surface 7, via sheet 1, through means which are not shown and can move from the starting position illustrated in figure 8 to the arrival position illustrated in figure 9.
  • mouth 14 is brought to coincide with line 10 which comprises independent suction points, or holes, 11 communicating with a suction chamber 24. Points 11 are therefore subject to an independent suction with respect to the rest of surface 7. From body 22, in correspondence with mouth 14, needles 25 protrude suited to engage in some of points 11 of surface 7.
  • Apparatus 1 further comprises, as illustrated in figures 7, 8 and 9, a base 19 and means for drawing scrap 4 from suction surface 7 constituted by a mobile plate 26 moving orthogonally to suction surface 7 on a vertical post 27 and suited to bring itself into contact with said surface.
  • means are provided for drawing sheet 1, with scrap 4 already removed, from mobile body 22 which comprise an arm 28 oscillating from a drawing position (fig. 8) to a releasing position (fig. 9) .
  • suction cups 29 are provided, and the other end of arm 28 is rotatingly connected to a support 30. The release of the sheets from which the scrap has been removed occurs on a collecting plane 31.
  • the suction in correspondence with surface 7 and mouth 14 occurs respectively through chambers 20 and 24 and through chamber 23.
  • the suction occurs by means of a first pump 32 and a second pump 33.
  • First pump 32 communicates through conduit 34 with chamber 20 located under suction plane 7 with the exception of points 11 located on line 10.
  • Second pump 33 communicates with chambers 23 and 24 respectively through conduits 35 and 36 and with suction cup 29 through a conduit 37.
  • Pumps 32 and 33 comprise valves for the partializing and inversion of the suction flow indicated respectively with 38 and 39 and acting in synchronism with the movement of mobile body 22 with respect to suction surface 7.
  • a valve 40 is also provided which is independent from valve 39 and suited to command the suction at suction cup 29 by pump 33 through conduit 37.
  • mobile body 22 moves into starting position pressing with mouth 14 against sheet 1 in order to facilitate the grip by suction and permit needles 25 to penetrate sheet 1 until they engage in corresponding points 11, so that they pass through both silicone coated support 2 and scrap 4.
  • Needles 25 have the function of bringing air between silicone coated support 2 and scrap 4 and of contributing to the grip of support 2 by suction mouth 14, due to the depression existing in chamber 23 which has been put in communication with pump 33 by means of valve 39.
  • chamber 24, located under points 11, is depressed for the same reason and, thus, a suction force is exerted on scrap 4 opposite to that acting on silicon coated support 2.
  • silicone coated support 2 detaches from scrap 4 in correspondence with line 10.
  • silicone coated support 2 adheres to it detaching itself more and more from scrap 4 and carrying with it the part of adhesive film 3 which constitutes the letter A, or the writing or design of the label.
  • the label in fact, thanks to the presence of template 8, is not forced to adhere to surface 7 by the depression created in chamber 20 by pump 32 with whose suction chamber it communicates by way of valve 38.
  • valves 38, 39 and 40 invert cutting off the suction of chambers 20, 23 and 24 while opening the suction of suction cups 29. Consequently, following the oscillation of arm 28, sheets 1, already having had the scrap removed, can be dropped onto collection plate 31. Contemporaneously, plate 26 lowers in the direction of arrow 45 until it touches scrap 4 which adheres to it since its adhesive side 3b is facing upward. As shown, the successively removed scraps 4 form a very compact pile adhering to plate 26, with the consequent considerable practical advantage of reducing the volume of scrap film per unit weight.
  • each of suction mouths 14 can be advantageously composed of a metallic bush 15 which engages sealed with body 22.
  • a cap 16 screws onto bush 15 and, by closing it, stops both a needle 25, which passes through it, and a pneumatically sealant O-ring 18.
  • the grip of the label on support 2 which must assure its detachment from scrap 4 is, therefore, obtained by the combination of the force of penetration of needles 25, both in support 2 and in scrap 4, and the suction of mouths 14.
  • the detachment is facilitated by the pneumatic seal provided by O-rings 18 and by the further air that has penetrated between support 2 and scrap 4 due to the punchings.
  • the other end 48 of flexible panel 47 is anchored by means of screws 50 to suction plane 7 in proximity to its end 7a (on the side of suction cups 29),opposing line 10 of the beginning of scrap removal.
  • Panel 47 can be used as a support for needles 51, which can be for example drawing pins, which punch, besides flexible panel 47 itself, also support 2 and scrap 4 in order to facilitate detachment by air penetration and eliminate the suction cup effect. Needles 51 can be easily positioned immediately after the application of template 8 on suction plane 7, before initiating the scrap removal. In fact, after body 22 has returned to its starting position, flexible panel 47 extends on plane 7 and template 8 remains visible since the flexible panel 47 is transparent. Needles 51 can, therefore, be placed in the critical points of the successive scrap to be removed, making sure they coincide with one of the holes 9 nearest to said points.
  • flexible panel 47 is composed of a known film called Lexan.
  • Sheet 1 which is to have the scrap removed from it with the apparatus according to the invention can be of any reasonable form or dimension. Therefore, in the majority of cases, suction surface 7 will be of a dimension greater than that of sheet 1. Thus, in order to allow for suction on the part of surface 7 itself, it is advantageous to seal its uncovered portions for example by means of adhesive sheets 17 or other equivalent means.
  • the apparatus according to the invention allows, therefore, for the automatic removal of the scrap film of sheet 1 with considerable speed and efficiency, thus allowing the production of adhesive labels of the above- mentioned type to increase to an industrial scale with a considerable reduction of costs.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Labeling Devices (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

Procédé et appareil correspondant servant à séparer les films de protection d'avec les étiquettes (1) de films adhésifs (3) placés sur une feuille de support (2). Ledit procédé consiste: à placer sur une surface d'aspiration (7) un gabarit (8) dont la forme (A) correspond au négatif du film de protection (4) à retirer, à placer la feuille (1) sur la surface d'aspiration (7), à presser la feuille (1) contre la surface d'aspiration (7) le long d'une ligne (10) proche du contour extérieur du film de protection, et à appliquer des forces opposées correspondant à ladite ligne à la fois à la feuille de support et au film adhésif, et enfin à écarter le support (2) du film de protection (4) adhérant à la surface. L'appareil présente un plan d'aspiration (7) muni d'une ligne de points d'aspiration (11) indépendants. Un corps mobile (22) roulant sur la surface (7) comporte une bouche d'aspiration (14) conçue pour venir en coïncidence avec ladite ligne (10).
PCT/IT1995/000094 1994-06-08 1995-06-05 Procede et appareil de separation des films de protection d'avec des etiquettes adhesives WO1995033652A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP95920213A EP0711238A1 (fr) 1994-06-08 1995-06-05 Procede et appareil de separation des films de protection d'avec des etiquettes adhesives
AU25747/95A AU2574795A (en) 1994-06-08 1995-06-05 Method and apparatus for the separation of scrap film from adhesive labels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITFI940112A IT1269107B (it) 1994-06-08 1994-06-08 Perfezionamenti ad un metodo e ad una apparecchiatura per la separazione degli sfridi da un foglio fustellato di film adesivo su pellicola di supporto, in particolare per la produzione di etichette adesive
ITFI94A000112 1994-06-08

Publications (1)

Publication Number Publication Date
WO1995033652A1 true WO1995033652A1 (fr) 1995-12-14

Family

ID=11350910

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1995/000094 WO1995033652A1 (fr) 1994-06-08 1995-06-05 Procede et appareil de separation des films de protection d'avec des etiquettes adhesives

Country Status (4)

Country Link
EP (1) EP0711238A1 (fr)
AU (1) AU2574795A (fr)
IT (1) IT1269107B (fr)
WO (1) WO1995033652A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074354A1 (fr) * 1999-07-26 2001-02-07 Byung Jun Song Dispositif permettant d'enlever les parties à décortiquer d'un matériau en feuille
US10464704B2 (en) * 2017-01-20 2019-11-05 Kabushiki Kaisha Toshiba Label peeling device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1294653B1 (it) 1997-09-11 1999-04-12 Carraro Spa Dispositivo meccanico per variare la fase fra albero motore ed un albero a camme di un motore a combustione interna

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594804A (en) * 1946-12-05 1952-04-29 Harold A Ringel Device for automatically stripping cutout box blanks from offal or waste
US3117499A (en) * 1960-01-07 1964-01-14 Golding William Frank Apparatus for separating waste and work in cut sheets
GB1572716A (en) * 1977-10-25 1980-07-30 British Ceramic Res Ass Apparatus for peeling a film or the like off a substrate
EP0269529A1 (fr) * 1986-10-23 1988-06-01 "Imcarvau" Machine pour l'application automatique de feuilles auto-collantes sur des articles
EP0468254A2 (fr) * 1990-07-21 1992-01-29 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de coupe transversale pour des bandes imprimées

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594804A (en) * 1946-12-05 1952-04-29 Harold A Ringel Device for automatically stripping cutout box blanks from offal or waste
US3117499A (en) * 1960-01-07 1964-01-14 Golding William Frank Apparatus for separating waste and work in cut sheets
GB1572716A (en) * 1977-10-25 1980-07-30 British Ceramic Res Ass Apparatus for peeling a film or the like off a substrate
EP0269529A1 (fr) * 1986-10-23 1988-06-01 "Imcarvau" Machine pour l'application automatique de feuilles auto-collantes sur des articles
EP0468254A2 (fr) * 1990-07-21 1992-01-29 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de coupe transversale pour des bandes imprimées

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1074354A1 (fr) * 1999-07-26 2001-02-07 Byung Jun Song Dispositif permettant d'enlever les parties à décortiquer d'un matériau en feuille
US10464704B2 (en) * 2017-01-20 2019-11-05 Kabushiki Kaisha Toshiba Label peeling device
US10766658B2 (en) 2017-01-20 2020-09-08 Kabushiki Kaisha Toshiba Label peeling device

Also Published As

Publication number Publication date
AU2574795A (en) 1996-01-04
ITFI940112A0 (it) 1994-06-08
ITFI940112A1 (it) 1995-12-08
IT1269107B (it) 1997-03-21
EP0711238A1 (fr) 1996-05-15

Similar Documents

Publication Publication Date Title
CN110370381A (zh) 用于制备手撕位无冲切刀痕产品的工艺及其模切设备
CN208867568U (zh) 一种弧形产品自动贴膜装置
WO1995033652A1 (fr) Procede et appareil de separation des films de protection d'avec des etiquettes adhesives
CN205735223U (zh) 可自动排除废料的模切机
CN208558564U (zh) 一种贴纸粘贴装置
US4271656A (en) Envelope processing machine
CN112009838B (zh) 一种立体金属标签贴签设备及其贴签方法
CN216175716U (zh) 一种冲压自动贴胶模具设备
CN212654663U (zh) 自动化撕膜装置
CN216233418U (zh) 一种自动化的片料剥料装置
IT9021836A1 (it) Metodo per fabbricare un foglio continuo di etichette.
CN211520105U (zh) 标签贴附装置以及标签打印贴附机
US3303979A (en) Method and device for removing pieces from sheet material
CN113985024A (zh) 新冠病毒s蛋白线性b细胞表位制备胶体金试纸加工设备
CN207565976U (zh) 一种用于电池行业的自动贴标机
US20010037852A1 (en) Process and device for punching thin films
CN216992183U (zh) 引流袋废边分离撕裂口装置
CN210940690U (zh) 一种薄膜材料冲切机
CN111845022B (zh) 一种试剂条大纸板撕膜方法及装置
CN211240318U (zh) 一种柔性线路板压合补强治具
CN216940976U (zh) 一种模切机夹持机构
JP2594613Y2 (ja) フイルムシート供給装置
CN211730438U (zh) 一种全自动穿橡皮筋机
CN214651932U (zh) 一种薄胶片抓胶传送机构
CN213474958U (zh) 一种双面胶贴胶装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 1995920213

Country of ref document: EP

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWP Wipo information: published in national office

Ref document number: 1995920213

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1995920213

Country of ref document: EP