WO2003002442A1 - A method of removing a cover sheet adhering to a plate, an apparatus for performing the method, and use of both the method and the apparatus - Google Patents
A method of removing a cover sheet adhering to a plate, an apparatus for performing the method, and use of both the method and the apparatus Download PDFInfo
- Publication number
- WO2003002442A1 WO2003002442A1 PCT/DK2002/000408 DK0200408W WO03002442A1 WO 2003002442 A1 WO2003002442 A1 WO 2003002442A1 DK 0200408 W DK0200408 W DK 0200408W WO 03002442 A1 WO03002442 A1 WO 03002442A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- cover sheet
- area
- sheet
- pressure element
- Prior art date
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
- B65H39/00—Associating, collating, or gathering articles or webs
- B65H39/14—Associating sheets with 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
- B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
- B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/445—Moving, forwarding, guiding material stream of articles separated from each other
- B65H2301/4451—Moving, forwarding, guiding material stream of articles separated from each other forming a stream or streams of separated articles
- B65H2301/44514—Separating superposed articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/50—Surface of the elements in contact with the forwarded or guided material
- B65H2404/53—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties
- B65H2404/539—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other
- B65H2404/5391—Surface of the elements in contact with the forwarded or guided material with particular mechanical, physical properties other adhesive properties
Definitions
- the invention relates to a method of removing a cover sheet adhering to a plate and in the rim area/areas of the plate.
- the invention also relates to an apparatus for performing the method, and use of both the method and the apparatus.
- the invention relates to a work station.
- the object of the present invention is to provide a method and an apparatus which solve the above-mentioned problems, it being thus possible to perform automated removal of cover sheet in the rim areas on plates, which must be covered by such a sheet in general.
- the plate which must thus have removed its sheet in the rim areas, is transported via an expedient transport device to the apparatus, where at least a sensor, preferably a photocell, records the front edge of the plate/pane.
- a pressure element preferably in the form of a rotatable roll/drum around which an adhesive tape is placed with the adhesive side facing toward the plate, is caused to engage in the rim area and substantially corresponding to the width which is to be removed.
- the tape will now adhere to the cover sheet itself and with an adhesive force which exceeds the adhesion which exists between the cover sheet and the plate.
- the first area will typically comprise an additional pressure roll placed after the tape pressure roll has applied tape.
- the additional pressure roll serves to press the tape firmly against the sheet and therefore typically has a face of attack which is 1-1.5 mm closer to the pane.
- a cutting instrument e.g. in the form of a knife whose cutting edge faces toward the direction of movement of the plate and the adhesive tape, will separate the lifted sheet from the remaining sheet, and then the adhesive tape with sheet disappears on a second instrument, e.g. in the form of a roll on which the adhesive with sheet is wound.
- the second instrument may also be configured as a vacuum machine if desirable.
- the cutting instrument and the additional pressure roll has interposed between them a flat metal member across which the tape runs before separation of the rim sheet takes place.
- the structure may also be configured such that the plate/pane is stationary, while the pressure element itself is moved relative to the plate.
- the actual instrument for separating the rim area may be formed as a knife with the cutting edge facing toward the direction of movement, and with the tip penetrating the lifted sheet, but, of course, it may also be configured in another manner, e.g. as a circular saw having a direction of rotation in or against the direction of movement.
- this separation device may be configured in another way than as a knife, e.g. a laser may be used which operates in a wavelength expedient relative to the plastics.
- 4 stations will be active at the same time, viz. 2 corresponding to the lower rim side of the pane and on the front and rear sides and 2 upper ones corresponding to the upper rim side of the pane and on the front and rear sides.
- the activation of the apparatus takes place at the proper location.
- the activation may be such that it takes place on both of the two long sides at the same time and on the upper side as well as on the lower side of the plate.
- a corresponding cutting-away of sheet will typically take place on the two short sides, as the instruments (in the form of pressure elements and knife/separation instruments), which are to be moved now, will have a direction of movement perpendicular to the long sides.
- the instruments in the form of pressure elements and knife/separation instruments
- the invention also relates to an apparatus as defined in claim 8, which provides the advantages mentioned above.
- This apparatus is arranged such that the transport device may e.g. be rolls, which partly have their point of attack on the edge of the plate, as the plate may be placed edgeways, and partly roll perpendicularly to these to ensure that the plate does not tip, fol- lowing which the pressure element will be activated as soon as the front edge of the plate reaches the area of activity.
- the adhesive tape is thus caused to engage the rim areas on preferably both the upper and the lower rim area and preferably on both sides of the plate, and then the cutting instrument is subsequently caused to engage corresponding to exactly the area at which the desired width of the separated cover sheet is achieved.
- Claims 9-11 define additional expedient embodiments, including, as stated in claim 11 , a sensor which detects the front edge of the plate.
- the invention is particularly useful for plates as stated in claim 12 and for plates as stated in claim 13.
- fig. 1 shows a detail view of the construction area where the pressure element exerts its pressure on the rim area of the plate
- fig. 2 shows a plate with cover sheet removed in the entire rim area
- fig. 3 shows an example of the apparatus according to the invention
- fig. 4 shows a detail view of the construction area where the pressure element exerts its pressure on the rim area of the pane, and where the knife arrangement is different from that shown in fig. 1 ,
- fig. 5 shows a work station for performing total delamination in the rim area.
- Fig. 3 shows a work station for removal of sheet on the longitudinal sides of a plate 1 , said plate 1 being in this case a transparent pane which is covered with a cover sheet 2 on the upper as well as the lower face. Adhesion between cover sheet and plate takes place by means of an adhesive or by static electricity.
- the plate is advanced via a transport device 12 to the apparatus where the rim area of the plate is exposed.
- the apparatus com- prises a roll of tape/adhesive 15 spaced from the actual area where the process is carried out. From there, the adhesive tape/strip 15 is moved with the adhesive side facing toward the plate 1 across a pressure element 4 which is configured as a rotatable wheel.
- the adhesive sheet is passed on to another roll, the so-called second element 11 , which is likewise config- ured as a drum around which the used tape with cut sheet is wound.
- the second element 11 is positioned relatively to the pressure element 4 such that the second element 11 is disposed after the pressure element has performed its function, and that the outer periphery of the second element is spaced from where the pressure element is active. If this is not the case, the adhesive tape 5 would not have a pull direction away from the plate.
- the construction comprises a cutting/separating instrument 8, which may be constructed in various ways, and which, in this case, is con- structed as a rotating saw cutter and so that the cutting edge contacts the cover sheet after the pressure element 4 has performed its function on the plate.
- a cutting/separating instrument 8 which may be constructed in various ways, and which, in this case, is con- structed as a rotating saw cutter and so that the cutting edge contacts the cover sheet after the pressure element 4 has performed its function on the plate.
- the station is constructed such that it is configured symmetrically around the surface extent of the feed direction of the plate, so that delamination of the longitudinal rim area 3 takes place on the upper part of the plate as well as on the lower part of the plate.
- FIG. 1 This shows a detail view of the area of function, and where a plate 1 with a cover sheet 2 is transported to the area of activity of the apparatus according to the invention with its front edge 13 at a vertical level, and where a first sensor, which is illustrated in figure 3, detects the beginning of the front edge.
- the same sensor 9 can thus also detect the rear edge of the plate so that the length of the plate is calculated. This is of importance when the plate is to be delaminated later, as far as the two width sides in the rim area are concerned.
- the pressure elements 4 After the sensor has recorded the front edge, activation of the pressure elements 4 will take place, said pressure elements being here configured as rolls optionally coated on their outer periphery with a friction-increasing means and having a width which at least corresponds to the width of the adhesive strip/tape 5.
- This adhesive tape is fed from an adhesive roll 15 which is spaced from the actual area of action. The adhesive tape faces inwards toward the pressure element 4 with its non-adhesive side, and with its adhesive side it thus faces toward the plate 1 which passes into the area of action of the pressure element.
- first area 6 a pressure impact is applied to the plate in the rim area, as the adhesive tape/strip 5 is pressed against the rim area in a predetermined width corresponding to the width of the tape or smaller. Support rolls 14 ahead of the area of activity ensure that the plate has the correct position and does not deviate from the plane which is vertical in this case. In a subsequent area, the tape will extend level with the face of the plate to thereby increase the adhesion between the adhesive tape and the cover sheet 2 itself.
- the so-called second area 7 is then reached, in which second area 7 the tape with the adhered sheet is removed, said tape being wound on to a roll/wheel, so-called second element 11 , in such a manner that the tape forms an angle of preferably between 30 and 90° with the horizontal plane of the plate.
- a cutting/separating instrument 8 is ar- ranged in the vertex of the angle itself and in the second area, and where in figure 1 a stationary knife is shown, which substantially corresponds to a razor blade in shape, and with its tip penetrates the cover sheet loosened from the plate so that this cover sheet removed in the rim area and adhering to the tape is now wound on to the second element.
- the knife structure may also be shaped differently, as is shown in figure 4, using a knife 8 which is a rotating saw blade.
- the cutting edge will be active in the area after the first area and referred to as the so-called second area.
- figure 1 shows an arrangement where the plate is oriented vertically with its face, while in the arrangement of figure 4 a case is shown where the plate is oriented horizontally with its face. It is observed that some of the rolls are driven by means of drive belts 16.
- Figure 2 shows an example of a plate 1 covered with a cover sheet 2, and where cover sheet is removed in the rim area 3.
- This plate is also suitable for being inserted e.g. into the opening in a gate, as the actual face visible in the gate is still protected by a cover sheet, while the sides to be inserted into the recess in the opening are exposed.
- Figure 5 shows a work station where delamination of the entire rim area on plates is carried out, and where this takes place in an automated manner.
- a plate will be transported into the first station 17, with the face oriented vertically. Delamination of the two rim areas now takes place, corresponding to the longitudinal direction of the plate on the front side as well as the rear side. Subsequently, the plate is moved to a second substation 18, in which, instead of the plates being moved for delamination of their rim areas in the width direction, the pressure element is moved so that it performs a vertical movement in the rim areas.
- the first plate has its cover sheet removed vertically down along its front edge.
- the first roll is then moved to a waiting position, and then the next plate is moved to the area of activity, and the rear edge of the first roll is now moved to the front edge of the second roll.
- a strip is now moved down, as described before, and in this case it will be the pressure element 4 which moves, and in this process a suitable rim area on the rear edge of the first roll is removed, corresponding to the width thereof, and also on the front edge of the second roll. In the second area there will thus be 2 cutting instruments activated relatively to their respective plates.
- the first roll is now removed, as the cover sheet has been removed from it in its entire area, and the second roll is moved to a waiting position, following which the third plate is moved to the area of activity for the pressure element 4, and the second roll is moved to the front edge of the third roll, so that the rear edge of the second roll adjoins it.
- the process is now re- peated, so that the rim areas of the front edge of the third roll and of the rear edge of the second roll, corresponding to their width, are now exposed by means of a single strip and the two mentioned cutting instruments.
- the process is thus automated, as delamination of two rim areas may be performed by a single run.
- the apparatus and the method may be used for transparent plates having a cover sheet as well as for non-transparent sheets having a cover sheet.
- the plates may be made of metal, glass or plastics, the essential point being that these are protected on their plane faces by a sheet suitable for the purpose, which adheres to the plates either by an adhesive itself or by static electricity.
- the adhesive effect between the cover sheet and the adhesive tape 5 is greater than the adhesive effect between the cover sheet and the underlying plate.
- a typical work station may thus be constructed as follows:
- the pane is inserted into the machine so that the photocells, which are arranged in the inlet, scan:
- the four tape stations are closed around the plastics pane in that the two stations, which are provided on the front side of the plastics plate, are moved toward the plastics plate by means of compressed air.
- the plastics pane is now secured between the four tape stations, and the entire pressure from the four tape stations is transferred through the inlet roll which is arranged on each of the four tape stations.
- the pane After the pane has been advanced about 100 mm in the tape station, the pane reaches the next roll (tape applicator roll). This roll, too, is driven, but is not arranged on the same line as the inlet roll.
- This tape applicator roll is positioned 1-1.5 m further inwards in the direction of the thickness of the pane. (This means that focus and pressure are removed from the inlet roll and to this tape applicator roll.)
- This roll is mounted a further 1-1.5 m ahead of the tape applicator roll. This means that we again have a new focus point, as the focus point is removed from the tape applicator roll and to this pressure roll, and we ensure thereby that the tape is additionally pressed firmly on to the pane to ensure the contact between tape and sheet on the pane.
- This pressure roll is a non- driven roll.
- the face of this steel plate is arranged at an angle of 3-4° relative to the face of the pane and such that the end around which the tape and the sheet is to be pulled off, is 0.5-1 mm from touching the pane.
- the sheet is to be broken to prevent the sheet from being removed from the entire plastics pane, but only from an area of about 20 mm from the boundaries of the pane.
- the tape with the now adhered part of the sheet about 20 mm is fed via a plurality of rolls (to ensure uniform tension in the sheet across the inclined face on the steel plate) to a collection roll for used tape.
- a driven discharge roll After a further 100 mm there is a driven discharge roll. This roll is disposed at the same plane as the pressure roll. The discharge roll, together with the inlet roll, is to ensure that the speed of the pane through the entire process remains the same.
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesive Tapes (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10296951T DE10296951B4 (en) | 2001-06-27 | 2002-06-18 | Method for removing a cover layer edge and associated device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK200101003A DK174276B1 (en) | 2001-06-27 | 2001-06-27 | A method of removing a cover film adhering to a plate, apparatus for carrying out the method and a workstation comprising the apparatus |
DKPA200101003 | 2001-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003002442A1 true WO2003002442A1 (en) | 2003-01-09 |
Family
ID=8160589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2002/000408 WO2003002442A1 (en) | 2001-06-27 | 2002-06-18 | A method of removing a cover sheet adhering to a plate, an apparatus for performing the method, and use of both the method and the apparatus |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE10296951B4 (en) |
DK (1) | DK174276B1 (en) |
WO (1) | WO2003002442A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2906527A1 (en) * | 2006-10-03 | 2008-04-04 | Tiflex Sa Ets | Film portion removal device for support i.e. license plate, has rollers controlling plate, pressure units applying adhesive tape on support, and traction rollers that remove tape and are placed facing each other in tape drive direction |
CN104609241A (en) * | 2015-01-08 | 2015-05-13 | 中国科学院生物物理研究所 | Ultrathin section collector |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022134515A1 (en) * | 2022-12-22 | 2024-06-27 | Advanced Engineering Industrie Automation GmbH | Device and method for removing protective films from plate-shaped objects |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1161448A1 (en) * | 1983-12-23 | 1985-06-15 | Предприятие П/Я А-7438 | Device for removing protective films from sheet blanks |
JPH10139271A (en) * | 1996-11-07 | 1998-05-26 | Somar Corp | Method and device for film exfoliation |
JPH11322186A (en) * | 1998-05-11 | 1999-11-24 | Suzuki Co Ltd | Type stripping device |
JP2000203759A (en) * | 1999-01-13 | 2000-07-25 | Tokuyama Corp | Film peeling device |
JP2000296968A (en) * | 1999-04-12 | 2000-10-24 | Toppan Printing Co Ltd | Plate protection film peeling device |
JP2000351188A (en) * | 1999-06-11 | 2000-12-19 | Hitachi Techno Eng Co Ltd | Film releasing and cutting method and film sticking method |
-
2001
- 2001-06-27 DK DK200101003A patent/DK174276B1/en not_active IP Right Cessation
-
2002
- 2002-06-18 WO PCT/DK2002/000408 patent/WO2003002442A1/en not_active Application Discontinuation
- 2002-06-18 DE DE10296951T patent/DE10296951B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1161448A1 (en) * | 1983-12-23 | 1985-06-15 | Предприятие П/Я А-7438 | Device for removing protective films from sheet blanks |
JPH10139271A (en) * | 1996-11-07 | 1998-05-26 | Somar Corp | Method and device for film exfoliation |
JPH11322186A (en) * | 1998-05-11 | 1999-11-24 | Suzuki Co Ltd | Type stripping device |
JP2000203759A (en) * | 1999-01-13 | 2000-07-25 | Tokuyama Corp | Film peeling device |
JP2000296968A (en) * | 1999-04-12 | 2000-10-24 | Toppan Printing Co Ltd | Plate protection film peeling device |
JP2000351188A (en) * | 1999-06-11 | 2000-12-19 | Hitachi Techno Eng Co Ltd | Film releasing and cutting method and film sticking method |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2906527A1 (en) * | 2006-10-03 | 2008-04-04 | Tiflex Sa Ets | Film portion removal device for support i.e. license plate, has rollers controlling plate, pressure units applying adhesive tape on support, and traction rollers that remove tape and are placed facing each other in tape drive direction |
EP1908718A1 (en) * | 2006-10-03 | 2008-04-09 | Etablissements Tiflex | Device for peeling off a film |
CN104609241A (en) * | 2015-01-08 | 2015-05-13 | 中国科学院生物物理研究所 | Ultrathin section collector |
CN104609241B (en) * | 2015-01-08 | 2017-03-15 | 中国科学院生物物理研究所 | Ultra-thin section collector |
Also Published As
Publication number | Publication date |
---|---|
DK200101003A (en) | 2002-11-04 |
DE10296951T5 (en) | 2004-07-08 |
DK174276B1 (en) | 2002-11-04 |
DE10296951B4 (en) | 2005-11-24 |
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