EP3215324A1 - Air guide plate for leading away an edge strip of a material web, method for leading away an edge strip of the material web, and use of the air guide plate and of the method - Google Patents
Air guide plate for leading away an edge strip of a material web, method for leading away an edge strip of the material web, and use of the air guide plate and of the methodInfo
- Publication number
- EP3215324A1 EP3215324A1 EP15775459.9A EP15775459A EP3215324A1 EP 3215324 A1 EP3215324 A1 EP 3215324A1 EP 15775459 A EP15775459 A EP 15775459A EP 3215324 A1 EP3215324 A1 EP 3215324A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- edge strip
- edge
- material web
- air guide
- guide plate
- 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.)
- Granted
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
- B26D7/1854—Means for removing cut-out material or waste by non mechanical means by air under pressure
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/006—Cutting the edges of the paper-web
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
-
- 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
- B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
- B26D2007/0068—Trimming and removing web edges
Definitions
- Air baffle for discharging an edge strip of a material web, method for removing an edge strip of the material web and use of the air baffle and the method.
- the present invention relates to an air guide plate for removing an edge strip of a running, flat material web, a method for removing an edge strip of the material web and the use of the air baffle and the method for discharging an edge strip.
- an edge strip is usually separated from the material web on both sides. This separation takes place, for example, to obtain an exact width of the material web to produce well-defined edges of the material web in order to achieve uniform properties and conditions across the width of the material web or the cross profile and to ensure a quiet machine operation for production-technical reasons. So that the edge strips separated from the continuous, flat material web do not run along with the finished material web and, if necessary, are wound up with the manufactured finished product, the edge strips are usually cut off and removed continuously.
- compressed air-pressurized nozzle (s), so-called knock-down nozzle (s) are used in the prior art as a tee.
- discharged edge strips are treated as valuable raw material and returned to the production process.
- Discharge devices for removal Edge strips of a continuous, flat material web, in particular of tissue, paper, cardboard, cardboard, foil or textile are known in the art. As discharge devices, for example (discharge) funnels with or without baffle are known. In addition, vacuum devices and compressed air devices, in particular blowing nozzles and fans are additionally used to guide the edge strip.
- WO 2013/127008 describes a method and a device for handling edge strips of a paper web.
- An edge strip separated from the rest of the paper web is guided with an air nozzle into a discharge device, the edge strip optionally being cut off from the air nozzle, in particular severed and further discharged into a pulper, in particular a pulper.
- edge-strip conveying systems include vacuum systems, transport fan systems and injector systems.
- Known baffles and methods for removing an edge strip of a running, flat material web are still in need of improvement and often have the disadvantage that when removing an insufficient separation between separated edge strips and the web takes place, so that the edge strip is again arranged on the web and with the Material web is carried.
- the prior art air baffles and methods for discharging an edge strip do not sufficiently and reliably stabilize the edge strip to ensure good guidance of the edge strip.
- the known baffles and methods for discharging are not easy, fast and reproducibly adjustable to different edge strip widths, production speeds of the webs and basis weights of the edge strip.
- known discharge devices and methods due to lack of and / or inaccurate Adjustments energy, especially energy unneeded compressed air systems, wasted.
- the present invention is therefore based on the object, an improved air baffle and an improved method for removing a running, flat web of material, in particular from tissue, paper, cardboard, cardboard, foil or textile to provide, in which the aforementioned disadvantages are avoided.
- the air guide plate and the method for removing a material web a reliable and reproducible removal of an edge strip at all surface weights and production speeds of the material web is to be enabled and a rearranging of the edge strip to the material web prevented.
- the air baffle should be easy, fast and reproducible adjustable. In particular, production losses or variations in the quality of the produced material web, which can be attributed to the air baffle and the process, should be avoided as far as possible.
- the air guide plate according to the invention for discharging an edge strip of a continuous, flat material web, in particular of tissue, paper, cardboard, foil or textile has at least one air intake gap between the one or more discharge nozzles and the at least one edge strip outlet plate in relation to known air guide plates ,
- the invention therefore relates to an air baffle for discharging an edge strip of a continuous, flat material web, in particular of tissue, paper, cardboard, film or textile with an edge strip surface having an edge strip length in the machine longitudinal direction and an edge strip width in the machine transverse direction, a marginal edge outer edge which in the cross-machine direction terminates a side edge of the continuous, flat material web towards the outside and an edge strip inner edge, which is arranged in the direction of the center of the running, flat material web, comprising arranged in the direction of a longitudinal axis of at least one edge strip inlet plate, one or more Ausblasdü - se (n) and at least one edge strip outlet plate, wherein the one or more outlet nozzle (s) between the at
- Another object of the invention is a method for removing an edge strip of a continuous, flat web of material comprising the following steps: a) providing at least one edge strip of a running, flat material web, in particular of tissue, paper, cardboard, cardboard, foil or textile an edge strip surface having an edge strip length in the machine longitudinal direction and an edge strip width in the cross-machine direction, a marginal edge outer edge which terminates in the cross-machine direction a side edge of the running, flat material web to the outside and a marginal inner edge, which in the direction of the center of the current, planar
- Another object of the invention is the use of the air baffle in a machine for producing flat webs, in particular selected from a tissue machine, a paper machine, a board machine, a corrugated base paper machine, a coater, a laminating machine, a coating machine, a film machine, a textile machine, a sliver machine and combinations thereof.
- Another object of the invention is the use of the method for removing a marginal strip of a continuous, flat web in the production of a flat material web in particular selected from the production of paper, cardboard, corrugated cardboard, cardboard, graphic papers, packaging papers, tissue papers, especially tissue , laminated paper, films, textile webs, fibrous webs and combinations thereof.
- continuous motion is understood to be production speed, in particular a manufactured web of tissue, paper, cardboard, paperboard, laminated paper, films and combinations thereof.
- a manufactured web of tissue, paper, cardboard, paperboard, laminated paper, films and combinations thereof In the context of the present invention is understood by flat a flat surface, which in relation to their length in the machine direction and to your Width in the cross machine direction in each case based on the manufacturing machine, has a minimum thickness. For example, the thicknesses are determined according to EN ISO 12625-3: 2014 in the range of 50 ⁇ to 1000 ⁇ .
- material web is understood to be a flat web produced on a web production machine.
- material web is understood to mean a manufactured sheet of tissue, paper, cardboard, paperboard, laminated paper, film and combinations thereof.
- the term "air intake gap” is understood to mean an opening through which ambient air can pass, in particular can be sucked in, understood.
- an air intake nip may be selected from a slot, a hole, a nozzle, and combinations thereof.
- the at least one breather nozzle is at an included angle or the plurality of breather nozzles at one or more included angles to the airfoil outer edge are in the range of 0 ° to 45 °, preferably in the range of 5 to 20 ° arranged and point in the direction of the air guide plate outer edge.
- a fluid flow in particular a compressed air flow, acted upon blowing nozzle (s) is arranged.
- an axis of rotation is arranged in the region of the edge strip inlet plate in the cross-machine direction, about which the air baffle plate is pivotably arranged.
- the air baffle is arranged so pivotable about the axis of rotation in the cross-machine direction that an edge strip entering the air baffle at an angle in the range of ⁇ to 2 ⁇ , preferably in the range of ⁇ to 3 / 2 ⁇ based on the incoming edge strip is diverted.
- At least one blade element is arranged at the edge strip outlet side of the at least one edge strip outlet plate, which forms a shear gap with an oppositely arranged counter blade when the guide plate is pivoted.
- a knife element is selected from an edge, a point, a blade, a blade, a point, a perforation, a corrugation, and combinations thereof.
- a counterknife is understood to mean a knife which is arranged such that one or more counterknives with one or more knife elements form a shearing device for severing the edge strip of the material web.
- a counter knife is selected from an edge, a point, a blade, a blade, a point, a perforation, a corrugation, and combinations thereof.
- the severing means the division of a web of a marginal strip in the direction of the edge strip width in the machine transverse direction.
- the at least one discharge nozzle acted upon by the fluid flow flows at an included angle or the applied multiple discharge nozzles flow in one or more enclosed angles to the air guide sheet outer edge in the region from 0 ° to 45 °, preferably in the range of 5 to 20 °.
- the one or more ejection nozzle (s) in the region of the edge strip is acted upon by the fluid flow over the edge strip width or narrower than the edge strip width.
- the removal in step d) of the edge strip provided in step a) is introduced into at least one removal device with a pivoting movement of the at least one air guide plate provided in step b) ,
- the pivoting movement of the at least one air baffle provided in step b) is carried out with a swivel device selected from an electric swivel device. direction, a pneumatic pivoting device, a hydraulic pivoting device and combinations thereof.
- an electric swivel device is understood to mean an electrically operated swiveling device.
- a pneumatic swivel device is understood to mean a pneumatically operated swivel device.
- a hydraulic swivel device is understood to mean a hydraulically operated swivel device.
- the pivoting movement of the at least one air guide plate provided in step b) is at an angle in the range of ⁇ to 2 ⁇ , preferably in the range of ⁇ to 3 / 2 ⁇ , based on the incoming edge strip performed.
- the edge strip is severed during the pivoting movement by a shearing stress between at least one edge strip outlet plate arranged at least one knife element and an oppositely disposed counter knife.
- FIG. 1 shows schematically a cross section of the air baffle according to an embodiment of the invention
- FIG. 2 schematically shows a section of a plan view of the air guide plate according to an embodiment of the invention with a material web arranged above the air guide plate,
- Fig. 3 shows schematically a cross section of a pivotable baffle plate according to an embodiment of the invention according to Figure 1 with different angular positions of the baffle.
- an embodiment of an air baffle 1 according to the invention is shown schematically as a cross section along the machine longitudinal direction MD.
- the air baffle 1 comprises an edge strip inlet plate 6, one or more breather nozzle (s) 71, 72, 73, 74, 75, an air intake gap 10 and a marginal strip outlet plate 8.
- the edge strip inlet plate 6, the one or more Ausblasdü - se (n) 71, 72, 73, 74, 75, the air inlet gap 10 and the edge strip outlet plate 8 are arranged along a longitudinal axis L.
- the transverse profile of the air baffle 1 may be similar to a wing transverse profile.
- An incoming edge strip 2 is passed over the marginal strip inlet plate 6, by a fluid flow S, which flows from the one or more Ausblasdüse (s) 71, 72, 73, 74, 75 flows passed to the air inlet gap 10 and in Direction of the edge strip Auslaufblechs 8 out.
- the air baffle 1 has a rotation axis D about which it is pivotable. In the illustrated position, the air guide plate 1 is pivoted into a discharge device 13. A pivot radius of the air guide plate 1 is shown as a dashed line.
- the edge strip 2 is guided by the air guide plate 1 in the discharge device 13 in a direction of travel V.
- a counter blade 12 is disposed on the discharge device 13. When swinging the air deflector 1, a shear gap is formed in opposite of the blade member 1 1 and the counter blade 12, in which the edge strip 2 is severed. From the discharge device 13, the edge strip 2 is passed into a pulper 14.
- FIG. 2 schematically shows a section of a plan view of the air guide plate 1 according to an embodiment of the invention with a material web 3 arranged above the air guide plate 1. From the material web 3, the edge strip 2 was separated.
- the edge strip 2 has an edge strip width B in the cross-machine direction CD, a marginal edge outer edge 4, an edge strip inner edge 5 and is guided in the direction of travel V.
- the marginal edge-outer edge 4 closes in the cross-machine direction CD a side edge of the current, flat material web 3 to the outside.
- the edge strip inner edge 5 is arranged in the direction of the center of the running, flat material web 3.
- the edge strip 2 is arranged such that it enters via the edge strip inlet plate 6 of the air baffle 1, via the outlet nozzle (s) 71, 72, 73, 74, 75, the air inlet gap 10 and the edge strip outlet plate 8 is passed.
- the edge strip inlet plate 6, the Ausblasdüse (s) 71, 72, 73, 74, 75, the air inlet gap 10 and the edge strip outlet plate 8 are arranged in the longitudinal direction axis L.
- the air guide plate 1 has an air guide plate outer edge 9, which is arranged on the side facing away from the center of the material web 3 side.
- the exhaust nozzle (s) 71, 72, 73, 74, 75 point in the direction of the air guide sheet outer edge 9 and are at an included angle a, which lies between the at least one of the respective exhaust nozzle (s) 71, 72, 73, 74, 75 and the air guide sheet outer edge 9 forms, arranged.
- FIG. 3 schematically shows a cross section of the air baffle 1 along the machine longitudinal direction MD according to an embodiment of the invention according to FIG. 1 with different angular positions of the air baffle 1.
- the edge strip inlet plate 6, the outlet nozzle (s) 71, 72, 73, 74, 75, the air intake gap 10 and the edge strip outlet plate 8 are arranged along the longitudinal extension axis L.
- the air guide plate 1 is arranged pivotably about the axis of rotation D and can be pivoted, for example, from a position of the air guide plate 1 shown in dashed lines into a position of the air guide plate 1 shown by solid lines.
- the direction of the longitudinal extension axis L is different in the position shown by dashed lines to the position of the air guide plate 1 shown in solid lines.
- the knife element 1 1 is shown as an optional embodiment.
- the edge strip 2 When pivoting the air guide plate 1 from the dashed line in the position shown with sougezoge- ner line the edge strip 2 is guided through the air guide plate 1 on the counter knife 12, wherein the edge strip 2 is severed.
- the edge- Strip 2 is removed in the position shown in solid lines of the air baffle 1 in the direction of travel V in the discharge device.
- MD machine longitudinal direction
- V direction of movement of the flat material web
- the air guide plate according to the invention was tested as a fixed and pivotable air baffle.
- the air baffle was installed below the material web, in particular a paper web.
- the air baffle had between one and ten exhaust nozzles and the air intake gap between the exhaust nozzles and the edge strip exhaust plate had a length in the direction of the longitudinal axis in the range of 0.2 to 5 mm.
- the exhaust nozzles were aligned in the direction of the outer edge of the air guide plate and arranged at an included angle of 0 ° to 45 °, preferably from 5 to 20 ° to the air guide sheet outer edge.
- the edge strip was introduced from the air baffle in a discharge funnel or a discharge channel.
- nozzles such as so-called Vits nozzles were arranged in part experiments.
- pressure-knocked-down knock-down nozzles were also tested as a separator for the edge strip for knocking off the edge strip.
- the surfaces of the air baffle according to the invention were provided with a non-stick coating, in particular a TerraDry GT3 / CT3 from Voith Paper Onsite Services, Workshop, Parhalahti, Finland.
- the non-stick coating was made of polytetrafluoroethylene, in particular Teflon.
- the inventive air baffle made of plastic, such as PE-UHMW was prepared with or without glass ball additive.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
- Paper (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014222550 | 2014-11-05 | ||
PCT/EP2015/073324 WO2016071071A1 (en) | 2014-11-05 | 2015-10-09 | Air guide plate for leading away an edge strip of a material web, method for leading away an edge strip of the material web, and use of the air guide plate and of the method |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3215324A1 true EP3215324A1 (en) | 2017-09-13 |
EP3215324B1 EP3215324B1 (en) | 2018-11-21 |
Family
ID=54256756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15775459.9A Not-in-force EP3215324B1 (en) | 2014-11-05 | 2015-10-09 | Air guide plate for leading away an edge strip of a material web, method for leading away an edge strip of the material web, and use of the air guide plate and of the method |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3215324B1 (en) |
CN (1) | CN107073736B (en) |
CA (1) | CA2966775C (en) |
WO (1) | WO2016071071A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111874715B (en) * | 2020-07-04 | 2022-07-19 | 东莞市全泰纸品有限公司 | Corrugated board production line |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI124385B (en) * | 2007-08-10 | 2014-08-15 | Valmet Technologies Inc | Edge cutting and removal arrangement |
DE102007042025B4 (en) * | 2007-09-05 | 2018-12-20 | Windmöller & Hölscher Kg | Device and method for guiding a material web |
WO2010098044A1 (en) * | 2009-02-26 | 2010-09-02 | コニカミノルタオプト株式会社 | Method for producing optical film, optical film, polarizer, and liquid crystal display apparatus |
FI125148B (en) * | 2011-06-07 | 2015-06-15 | Valmet Technologies Inc | Tip pulling device and cutting device for a feed tip for a fiber web machine |
US9217225B2 (en) | 2012-02-28 | 2015-12-22 | Paprima Industries Inc. | Paper manufacturing |
-
2015
- 2015-10-09 CA CA2966775A patent/CA2966775C/en not_active Expired - Fee Related
- 2015-10-09 WO PCT/EP2015/073324 patent/WO2016071071A1/en active Application Filing
- 2015-10-09 EP EP15775459.9A patent/EP3215324B1/en not_active Not-in-force
- 2015-10-09 CN CN201580056754.1A patent/CN107073736B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2016071071A1 (en) | 2016-05-12 |
EP3215324B1 (en) | 2018-11-21 |
CA2966775C (en) | 2018-11-06 |
CN107073736A (en) | 2017-08-18 |
CA2966775A1 (en) | 2016-05-12 |
CN107073736B (en) | 2019-09-13 |
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