EP2279144A1 - Rollen- oder pufferspeicher für ein bahnförmiges flachmaterial - Google Patents
Rollen- oder pufferspeicher für ein bahnförmiges flachmaterialInfo
- Publication number
- EP2279144A1 EP2279144A1 EP09749562A EP09749562A EP2279144A1 EP 2279144 A1 EP2279144 A1 EP 2279144A1 EP 09749562 A EP09749562 A EP 09749562A EP 09749562 A EP09749562 A EP 09749562A EP 2279144 A1 EP2279144 A1 EP 2279144A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- store according
- roller
- cylinder
- buffer store
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
- B65H20/34—Arrangements for accumulating surplus web by making loops with rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running 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
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/52—Auxiliary process performed during handling process for starting
- B65H2301/522—Threading web into machine
Definitions
- the invention relates to a roller or buffer storage according to the preamble of claim 1.
- Roller buffer storage for sheet-like flat materials in particular for sheet-like packaging materials or films are known and used in systems for processing the sheet, for example in packaging systems to maintain a predetermined web tension by caching each a variable length of the sheet.
- Such buffer memory then comprise at least two roller registers having, for example, a plurality of parallel and spaced apart rollers which are freely rotatably mounted in the roller registers and over which the sheet is guided to form a plurality of loops.
- the roller registers are arranged to be movable relative to each other, i.
- a roller register is fixedly provided and the other roller register is movable, for example pivotable, at least in an axial direction radially to the axis of rotation of the rollers.
- At least one ele- ment acting as a spring is provided, which in the case of known buffer memories i.a. is formed by at least one piston-cylinder assembly (pneumatic cylinder) having at least one cylinder space, which is acted upon by the working pressure of a compressible fluid in the form of compressed air, so that the piston-cylinder arrangement acts as a gas or pneumatic spring.
- piston-cylinder assembly pneumatic cylinder
- the object of the invention is to show a roller or buffer memory, which avoids this disadvantage and has a much improved reliability.
- a roller or buffer storage is designed according to claim 1.
- the peculiarity of the buffer memory according to the invention is that in a first state of a first control valve assembly, ie during normal operation, the at least one cylinder space of the at least one piston-cylinder arrangement is connected to a device for providing the working pressure, the first control valve arrangement in the case of Machine downtime and / or a fault is switchable to a second state in which it not only breaks the connection of the at least one cylinder chamber to the means for providing the working pressure, but also locks the present in the at least one cylinder chamber volume of the fluid or pressure medium there.
- a relief valve which is preferably also connected to the first control valve assembly and which is designed so that it opens at a pressure above the residual pressure and causes the discharge, for example by venting to the atmosphere, blocks at a pressure which is equal to or less than the predetermined residual pressure.
- the residual pressure causes only a slight tension of the flat material, which is sufficient for maintaining a proper course of the flat material through the buffer.
- the relief valve which is for example a set to the residual pressure safety valve is also achieved that at a rupture of the sheet-like sheet material and thereby occurring relief of the movable roller register, a slight movement of this roller register is effected by acting as a gas or pneumatic spring piston-cylinder arrangement, the way this movement and the force exerted by the piston-cylinder arrangement force are extremely low, and in particular because of the expansion of the caged in the cylinder chamber and the pressure medium accompanying further reduction of the pressure below the residual pressure.
- Fig. 1 in a simplified functional representation of a roller or buffer storage according to the invention for a sheet-like sheet with associated pneumatic and control;
- Fig. 2 in a simplified functional representation of the two roller registers of the buffer memory of Figure 1 together with the stretched between these roller registers flat material.
- 1 is a roller or buffer memory for latching a length of a guided through this buffer memory 1 sheet-like sheet material 2.
- the latter is for example a packaging material or a packaging film.
- the buffer memory 1 is then, for example, part of a system for packaging objects and arranged in advance in this system in the feed or conveying direction A of the sheet 2 of a packaging machine.
- the buffer memory 1 consists essentially of two roller registers 3 and 4, of which the roller register 3 fixed and the roles register 4 relative to the roller register 3 is movable.
- the roller register 4 is provided on a swing frame 5, which is hinged via a hinge 6 to a frame member 7 of the buffer memory 1, pivotable about an axis parallel to the surface sides of the guided through the buffer memory 1 flat sheet 2 and perpendicular to Longitudinal extent of this material or perpendicular to the running and conveying direction A.
- a pneumatic cylinder 8 For tensioning the sheet 2 between the roller registers 3 and 4 by pivoting the pivot arm 5 about the axis of the joint 6 (arrow B), a pneumatic cylinder 8 is provided, which between a radially Axis of the joint 6 oriented boom 5.1 of the swing frame 5 and a frame member 9 of the buffer memory 1 acts.
- the pneumatic cylinder 8 is articulated with its piston rod 8.1 on the boom 5.1 and with its cylinder 8.2 on the frame element 9.
- the pneumatic cylinder 8 acts in the sense of pivoting the swing frame 5 from the initial position shown in the figure 1 in the direction of arrow B about the axis of the hinge 6 upwards.
- a compressible fluid or pressure medium e.g. with compressed air
- Each roller register 3 and 4 consists of a plurality of rollers 11 and 12, which are freely rotatably mounted on bearing elements at both ends, in such a way that the rollers
- rollers 11 and 12 are oriented with their axes parallel to each other and parallel to the axis of the joint 6, the rollers 11 of the roller register 3 and also the rollers 12 of the roller register 4 are each spaced from each other. Furthermore, the rollers 11 and 12 on the roller registers 3 and 4 or to the local bearing elements 13 are arranged so that in the starting position of the swing frame 5 in the longitudinal direction of the sheet 2 in each case a roller 12 with a roller 11 alternates and the rollers 12 of the Roller register 4 are located at a level below the rollers 11 of the roller register 3.
- the rollers 11 and 12 are each barrel-like adapted to the width of the sheet-like sheet 2.
- the bearing elements for the rollers 12 of the movable roller register 4 or for axes of these rollers are formed in the illustrated embodiment of extension 5.2.1 two arms 5.2, the rollers 12 are provided offset between them in an axial direction to the drawing plane of Figure 1 against each other and which form the roles of reg ister 4 having part of the swing frame 5.
- the bearing elements for the rollers 11 are designated by 13.
- the cylinder chamber 10 of the pneumatic cylinder 8 is acted upon by the working pressure of the compressible fluid (eg compressed air) in the order of 2 to 3 bar, so that the swivel arm 5 is pivoted out of its initial position and the web-shaped flat material is stretched between the roller registers 3 and 4 is guided.
- the compressible fluid eg compressed air
- the pneumatic cylinder 8 thus acts as a gas spring which biases the swing frame 5 in the direction of the arrow B.
- the stored in the buffer memory 1 each length of the sheet 2 is changed by pivoting the swing frame 5 by this gas spring or against the action of this gas spring.
- a protection device 15 Before commissioning the system or the buffer memory 1 and in particular before acting on the cylinder chamber 10 with the working pressure by suitable, for example pneumatic locking devices is locked.
- a peculiarity of the buffer memory 1 is that at a machine standstill, for example, when switching off the plant for processing the sheet 2, in a disturbance, especially in a tearing of the sheet-like sheet 2, with a change of this material, etc., the pressure medium locked in the cylinder chamber 10 and then the pressure of this pressure medium in the cylinder chamber 10 is lowered to a residual pressure, which is well below the working pressure, but still sufficient to keep the swing frame 5 against its own weight in a pivot position, the pivotal position of the swing frame 5 before corresponds to the machine downtime or the fault and in which the guided through the roller register 3 and 4 flat material is still somewhat stretched, ie For example, it is still so tense that the flat material between the rollers 11 and 12 is still flat or substantially flat.
- This control of the buffer memory 1 and the pneumatic cylinder 8 has considerable advantages, in particular with regard to a decisive improvement in reliability and a simplified handling of the buffer memory 1.
- By locking the pressure medium in the cylinder chamber 10 and by lowering the pressure there in a machine downtime or at a disturbance to the much smaller residual pressure is initially undesirable and also the risk of serious injury conditional rocking of the swing frame 5 in the event of tearing or removal of the sheet-like sheet prevented.
- the residual pressure is preferably also adjusted so that when a rupture of the sheet material and thereby taking place relief of the swing arm 5 and enlargement of the cylinder chamber 10, the residual pressure is lowered even further, for example to a value of 0.5 bar.
- the pivotal position which then occupies the swing frame 5 due to its own weight, then differs only slightly from the pivot position, the pivoting Frame 5 had taken before the tearing of the sheet-like sheet 2, a high speed of the swing frame 5 is thus effectively prevented.
- the swing frame 5 manually in Direction to its lower starting position to press down, for example, for threading the sheet 2.
- a control device 16 For controlling the pneumatic cylinder 8, a control device 16 is provided which has in series in a cylinder or space 10 with a source of the pressure medium (e.g.
- a check valve 21 which is arranged parallel to the throttle 20 and opens for a flow from the cylinder chamber 10 and blocks for a flow in the opposite direction, whereby the flow is passed through the throttle.
- control valve 18 By appropriate control of the control valve 18 then there is also the possibility, with the safety guard 15, the cylinder chamber 10 via the check valve 21, the control valve 19 and an open via the control valve 18 vent line 22 or via a provided in this vent line throttle / check valve combination 23rd and deaerate a vent filter 24 to pivot the swing frame 5, for example, for introducing or threading a new web of sheet 2 in the lower starting position or the web of the sheet 2 in the area of the buffer memory 1 completely relieve or the buffer memory 1 from effective to remove the plant.
- control valve 19 In a machine standstill or a fault or before opening the protection device 15, the control valve 19 is switched so that it disconnects the connection to the control valve 18 and the cylinder chamber 10 connects substantially via the check valve 21 with a relief or safety valve 25, which relieving or bleeding the cylinder chamber 10 to the residual pressure. acts, on which the safety valve 25 is set, for example, to the residual pressure of about 1 bar.
- control valve 19 can be actuated pneumatically, for example.
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810024367 DE102008024367A1 (de) | 2008-05-20 | 2008-05-20 | Rollen- oder Pufferspeicher für ein bahnförmiges Flachmaterial |
| PCT/EP2009/003345 WO2009141072A1 (de) | 2008-05-20 | 2009-05-12 | Rollen- oder pufferspeicher für ein bahnförmiges flachmaterial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2279144A1 true EP2279144A1 (de) | 2011-02-02 |
| EP2279144B1 EP2279144B1 (de) | 2015-09-02 |
Family
ID=40934202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09749562.6A Active EP2279144B1 (de) | 2008-05-20 | 2009-05-12 | Rollen- oder pufferspeicher für ein bahnförmiges flachmaterial |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8973801B2 (de) |
| EP (1) | EP2279144B1 (de) |
| DE (1) | DE102008024367A1 (de) |
| WO (1) | WO2009141072A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5622549B2 (ja) | 2010-12-10 | 2014-11-12 | 株式会社リブドゥコーポレーション | 吸収性物品の製造システム |
| KR101529177B1 (ko) * | 2013-07-29 | 2015-06-16 | 주식회사 코엠 | 전기 이중층 커패시터용 도전판 권취 시스템과 도전판권취롤 제조방법 |
| RU2675990C1 (ru) | 2013-12-20 | 2018-12-25 | Тетра Лаваль Холдингз Энд Файнэнс С.А. | Устройство для управления натяжением полотна в движущемся полотне материала |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3006571A (en) * | 1958-06-23 | 1961-10-31 | Miehle Goss Dexter Inc | Web tensioning system |
| DE1248724B (de) * | 1959-02-13 | |||
| US3414208A (en) * | 1966-09-02 | 1968-12-03 | Jr Richard A Butler | Apparatus for controlling the unwinding of web |
| CH465539A (de) * | 1966-11-22 | 1968-11-30 | Benninger Ag Maschf | Vorrichtung zur Aufrechterhaltung einer vorbestimmten Spannung in einer über Walzen geführten Gewebe- oder Kettbahn |
| US3743153A (en) * | 1970-12-21 | 1973-07-03 | Eastman Kodak Co | Apparatus and method for handling a web |
| US3722769A (en) * | 1971-02-11 | 1973-03-27 | Western Gear Corp | Tension control system |
| US3813052A (en) * | 1973-04-13 | 1974-05-28 | Arcata Graphics | Web tension control system |
| US3891158A (en) * | 1973-07-13 | 1975-06-24 | Du Pont | Method and apparatus for splicing a standby web to a running web |
| DE2411482C3 (de) * | 1974-03-11 | 1981-08-06 | Maschinenfabrik Goebel Gmbh, 6100 Darmstadt | Einrichtung zum Aufrechterhalten einer Spannung in einer Bahn aus Papier, Folie o.dgl. |
| US4325519A (en) * | 1980-09-29 | 1982-04-20 | Reynolds Metals Company | Sheet material dispensing mechanism |
| DE3410470A1 (de) * | 1984-03-22 | 1985-10-03 | Focke & Co, 2810 Verden | Vorrichtung zum transport von verpackungsmaterial-bahnen |
| DD244105A1 (de) * | 1985-12-13 | 1987-03-25 | Hank Dietrich Dr Ing | Sicherheitsvorrichtung zum steuern einer rollenrotationsdruckmaschine |
| US4798353A (en) * | 1987-02-05 | 1989-01-17 | Printpack, Inc. | Web slitting system and slack inducing apparatus and method useful therein |
| DE3743763C1 (de) * | 1987-07-10 | 1989-06-01 | Bwg Bergwerk Walzwerk | Bandbehandlungsanlage fuer Metall-,Kunststoff-,Papierbaender oder dergleichen |
| DE3731350C3 (de) * | 1987-09-18 | 1996-04-25 | Kleinewefers Ramisch Gmbh | Vorrichtung zum Behandeln einer endlosen Ware |
| JPH02300053A (ja) * | 1989-05-12 | 1990-12-12 | Tokyo Kikai Seisakusho Ltd | 印刷紙張力制御装置 |
| US5826774A (en) * | 1996-05-30 | 1998-10-27 | Axis Usa, Inc. | Wire tensioner for dynamo-electric machine coil winder |
| JP2819283B2 (ja) * | 1996-12-24 | 1998-10-30 | 株式会社東京機械製作所 | 連続紙走行張力制御装置 |
| US6216934B1 (en) * | 1998-09-14 | 2001-04-17 | Timothy J. Searles | Festoon protection method and system |
| JP2981221B1 (ja) * | 1998-11-25 | 1999-11-22 | 株式会社東京機械製作所 | 輪転機のウェブ紙張力制御装置 |
-
2008
- 2008-05-20 DE DE200810024367 patent/DE102008024367A1/de not_active Withdrawn
-
2009
- 2009-05-12 US US12/993,340 patent/US8973801B2/en active Active
- 2009-05-12 EP EP09749562.6A patent/EP2279144B1/de active Active
- 2009-05-12 WO PCT/EP2009/003345 patent/WO2009141072A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009141072A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009141072A1 (de) | 2009-11-26 |
| US20110062206A1 (en) | 2011-03-17 |
| EP2279144B1 (de) | 2015-09-02 |
| DE102008024367A1 (de) | 2009-12-03 |
| US8973801B2 (en) | 2015-03-10 |
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