EP1601578A2 - Gleichsinnige platinenaufladung - Google Patents
Gleichsinnige platinenaufladungInfo
- Publication number
- EP1601578A2 EP1601578A2 EP03795948A EP03795948A EP1601578A2 EP 1601578 A2 EP1601578 A2 EP 1601578A2 EP 03795948 A EP03795948 A EP 03795948A EP 03795948 A EP03795948 A EP 03795948A EP 1601578 A2 EP1601578 A2 EP 1601578A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- boards
- separating
- board
- stack
- circuit
- 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- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
-
- 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
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
- B65B7/2807—Feeding closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/18—Separating articles from piles using electrostatic force
-
- 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
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/513—Modifying electric properties
- B65H2301/5132—Bringing electrostatic charge
Definitions
- the invention relates to a method for separating boards from a stack of boards and a device for separating boards from a stack of boards with means for receiving a stack of boards and means for separating the boards.
- Blanks in the sense of the present invention are mostly used as lids for containers, for example containers for dairy products.
- the boards usually consist of a flexible carrier on which a heat-sealable coating is applied on the side facing the interior of the container. On the side facing away from the container interior, various prints, including information about the contents of the cup, are applied.
- An aluminum foil or a composite such as e.g. Aluminum / polyester, aluminum / polyamide, paper / polyester or even pure plastics such as polyester, polypropylene or composites thereof.
- the heat-sealable coating of the boards is usually not electrically conductive.
- Such boards are produced by applying the heat-sealable coating on one side of the flexible carrier and after applying one on the other side of the carrier Pre-varnish the above-mentioned print is applied.
- the boards are then punched out of the material which has hitherto generally been in the form of a strip and are stacked. When unstacking the stack of boards, the problem arises with completely smooth boards that the lids cannot be individually removed from the stack in a reproducible manner, since they stick to one another.
- a correspondingly rough surface can be achieved, for example, by embossing the flexible carrier with a structure or else by applying a coating with a sufficient surface roughness.
- the present invention is based on the object of providing a method for separating boards from a stack of boards and a device for separating boards from a stack of boards with means for receiving a stack of boards and means for separating the boards provide which enables a safe and fast separation of boards from a board stack with low manufacturing costs of the boards.
- circuit boards made of aluminum foil coated on both sides or with a carrier made of a paper-plastic laminate only partial areas of the circuit boards are polarized by displacement polarization with the same sign. However, a repulsive electric field also forms between these superposed regions of the circuit boards which are polarized in the same direction.
- the separation can be further improved by only at least partially using partial regions of a first circuit board to be separated in the circuit board stack and a second circuit board in the circuit board stack below the first circuit board Charge of the same sign can be charged or polarized.
- an electrical field counteracting the adhesive forces is formed between the first and the second board, on the other hand, an attractive electrostatic field is generated between the individual boards by the influence and polarization of the boards below the second board in the board stack.
- the second board is therefore held on the board stack with an additional force, so that simultaneous lifting of two boards from the board stack is effectively prevented.
- the boards are preferably charged or polarized before stacking in boards, so that the boards can be stacked already loaded.
- the charging or polarization of the boards can be easily integrated into the manufacturing process of the boards by charging or polarizing the boards after punching them out of a material web.
- the process of charging or polarizing can be further simplified.
- the boards are preferably charged or polarized within the punching device in order to prevent the material web from being discharged until the punching process.
- a particularly simple possibility of charging or polarizing the circuit boards is achieved by charging or polarizing the circuit boards by applying a high-voltage electrode.
- the object derived and shown above for a device is achieved in that means are provided for charging or polarizing partial regions of the boards arranged one above the other in the board stack with electrical charge of the same sign.
- a repulsive electric field is generated, as already described, which counteracts the adhesive forces between the boards.
- the device according to the invention thus ensures safe and rapid separation of boards which have no spacers or a special aluminum foil as a carrier, so that manufacturing costs, for example for applying the spacers, can be saved.
- means for charging or polarizing only parts of a first circuit board to be separated which are arranged one above the other are provided in the circuit board stack and a second circuit board arranged in the circuit board stack below the first circuit board and which carry out the implementation of the method according to the invention for separating boards from a board stack according to a first advantageous embodiment.
- An advantageous integration of the manufacture of blanks in the separation process of the blanks can be ensured by providing a stacking device for stacking the blanks and a punching device for punching the blanks out of a material web, the means for charging the blanks between the punching device and the stacking device or in the punching device.
- the circuit boards can be charged or polarized in a particularly simple manner by contact with the high-voltage electrode.
- the repulsive electrostatic forces can be maintained between the boards for the duration of a singling cycle if means are provided to prevent the boards from being discharged.
- means for preventing the circuit boards from being discharged are also provided for separating the circuit boards, so that on the one hand, when the devices for separating the circuit boards contact the corresponding circuit board, the circuit board is prevented from being discharged and, on the other hand, it guarantees the same charging or polarization during the process of separation can be.
- the single figure shows in a sectional view three boards 1, 2 and 3 of a board stack, which are arranged in a receptacle, not shown, for board stack.
- the boards 1, 2, 3 are each constructed from a carrier 4 and an electrically non-conductive, heat-sealable coating 5.
- the boards 1, 2 and 3 shown have a aluminum material, for example an aluminum foil, as the carrier 4.
- circuit board 1 If the circuit board 1 is now charged with a negative electrical charge 6, for example by an electrical contact (not shown) that is at a negative electrical potential, for example a high-voltage electrode, displacement polarization in the electrically non-conductive coating 5 forms positive surface charges 7 at the boundary layer to the carrier 4 and negative surface charge 8 at the interface to the circuit board 2. If the circuit board 2 is now brought to a negative electrical potential, likewise via an electrical contact (not shown), corresponding negative surface charges 9 form at the boundary layer with the circuit board 1. As a result, a repulsive electric field 10 is created between the circuit board 1 and the circuit board 2.
- a negative electrical charge 6 for example by an electrical contact (not shown) that is at a negative electrical potential, for example a high-voltage electrode
- this repelling electrical field 10 counteracts the attractive adhesive forces between the two boards 1 and 2, so that a separation of the board 1 from the board stack is made considerably easier.
- the simplified separation makes it possible to dispense with the use of spacers and a special aluminum foil as a support for the boards, so that the manufacturing costs for the boards can be reduced.
- the separating means (not shown), for example a vacuum gripper, can preferably be brought to the same electrical potential as the circuit board 1, so that discharge of the circuit board 1 during the separation is prevented. This also applies to the accommodation of a stack of boards, not shown, which, for example made of an electrically non-conductive material, prevents discharging of boards 2 and 3 in the board stack.
- circuit boards 1, 2, 3 consisting of an aluminum foil coated on both sides or with a carrier 4 made of a paper-plastic laminate are used, however, in comparison to circuit boards 1, 2, 3 with a carrier 4 an aluminum material, by means of displacement polarization in electrically non-conductive circuit boards 1, 2, 3, a charge distribution dependent on the geometry of the electrical contacts used for the polarization is generated and partial regions of the circuit boards 1, 2, 3 arranged one above the other are polarized with electrical charge of the same sign.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Machine Translation (AREA)
- Packaging Frangible Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002160712 DE10260712B3 (de) | 2002-12-23 | 2002-12-23 | Verfahren und Vorrichtung zur Vereinzelung von Platinen |
| DE10260712 | 2002-12-23 | ||
| PCT/EP2003/014698 WO2004058577A2 (de) | 2002-12-23 | 2003-12-20 | Gleichsinnige platinenaufladung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1601578A2 true EP1601578A2 (de) | 2005-12-07 |
Family
ID=32667537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03795948A Withdrawn EP1601578A2 (de) | 2002-12-23 | 2003-12-20 | Gleichsinnige platinenaufladung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1601578A2 (de) |
| AU (1) | AU2003298226A1 (de) |
| DE (1) | DE10260712B3 (de) |
| WO (1) | WO2004058577A2 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193870B (zh) * | 2020-09-27 | 2022-10-28 | 重庆三创印刷有限公司 | 一种具有防卡纸功能的印刷装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1716602A (en) * | 1927-09-07 | 1929-06-11 | Continental Can Co | Method of and means for separating metal sheets |
| DE813016C (de) * | 1946-09-04 | 1951-09-06 | Philips Nv | Transportvorrichtung fuer Papier und aehnliche Stoffe |
| DE3508514A1 (de) * | 1985-03-09 | 1986-09-11 | E.C.H. Will (Gmbh & Co), 2000 Hamburg | Verfahren und vorrichtung zum stabilisieren von papierstapeln |
| DK225988A (da) * | 1988-04-26 | 1989-10-27 | Anders Andersen | Maskine til stabling eller afstabling af flade genstande som f.eks. laag til konservesdaaser |
| IT1278159B1 (it) * | 1995-01-17 | 1997-11-17 | Gd Spa | Metodo per il convogliamento di materiale in foglio |
| BR9707548A (pt) * | 1996-12-17 | 1999-07-27 | Teich Ag | Elemento de embalagem de superficie áspera |
| ATE207030T1 (de) * | 1997-04-16 | 2001-11-15 | Ferag Ag | Zusammensetzung zur behandlung von oberflächen von flächigen gegenständen zum erzeugen von vorbestimmten trennstellen in einer anzahl von mindestens teilweise aufeinanderliegenden, derartigen gegenständen |
| DE19825777A1 (de) * | 1998-06-10 | 1999-12-16 | Rainer Schroepfer | Verfahren zur Herstellung einer Verschlußplatine |
-
2002
- 2002-12-23 DE DE2002160712 patent/DE10260712B3/de not_active Expired - Fee Related
-
2003
- 2003-12-20 WO PCT/EP2003/014698 patent/WO2004058577A2/de not_active Ceased
- 2003-12-20 AU AU2003298226A patent/AU2003298226A1/en not_active Abandoned
- 2003-12-20 EP EP03795948A patent/EP1601578A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004058577A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004058577A3 (de) | 2009-03-26 |
| AU2003298226A8 (en) | 2009-04-23 |
| AU2003298226A1 (en) | 2004-07-22 |
| WO2004058577A2 (de) | 2004-07-15 |
| DE10260712B3 (de) | 2004-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20050513 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCAN TECHNOLOGY & MANAGEMENT AG |
|
| PUAK | Availability of information related to the publication of the international search report |
Free format text: ORIGINAL CODE: 0009015 |
|
| RTI1 | Title (correction) |
Free format text: METHOD AND DEVICE FOR UNSTACKING A FOIL FROM A STACK |
|
| 17Q | First examination report despatched |
Effective date: 20090525 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20091006 |