EP4622903A1 - Vorrichtung zum abwickeln einer materialbahn von mehreren materialbahnrollen - Google Patents
Vorrichtung zum abwickeln einer materialbahn von mehreren materialbahnrollenInfo
- Publication number
- EP4622903A1 EP4622903A1 EP23810320.4A EP23810320A EP4622903A1 EP 4622903 A1 EP4622903 A1 EP 4622903A1 EP 23810320 A EP23810320 A EP 23810320A EP 4622903 A1 EP4622903 A1 EP 4622903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- material web
- pivot
- vertical
- shaft
- web roll
- 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.)
- Pending
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
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
- B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
- B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
- B65H16/10—Arrangements for effecting positive rotation of web roll
- B65H16/106—Arrangements for effecting positive rotation of web roll in which power is applied to web roll
-
- 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
- B65H2301/41—Winding, unwinding
- B65H2301/413—Supporting web roll
- B65H2301/4135—Movable supporting means
- B65H2301/41358—Movable supporting means moving on an arc of a circle, i.e. pivoting supporting means
-
- 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
- B65H2404/40—Shafts, cylinders, drums, spindles
- B65H2404/43—Rider roll construction
- B65H2404/433—Rider roll construction involving at least one rider roller following a spindle moved on a path, e.g. arcuate or circular path
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/191—Bags, sachets and pouches or the like
Definitions
- the invention relates to a device for unwinding a material web from one or more material web rolls.
- another material web roll can be fed into the device.
- the beginning of the material web must be connected to the end of the material web roll that is currently being unwound.
- the first material web roll must be removed from the unwinding point, which is also referred to as the main storage point, and the other Material web roll is placed in the position of the first material web roll at the unwinding point.
- the other material web roll forms the first material web roll, so that after an unwinding time the change described can take place again.
- the previously first material web roll then forms the second material web roll.
- Such devices which enable a continuous unwinding of a material web, especially from several rolls of material web, take up a lot of space. In applications where several devices are required within a machine, a particularly large amount of space is therefore required.
- the object of the present invention is therefore to propose a generic device which is compact and thus space-saving.
- the device according to the invention for unwinding a material web from several material web rolls is equipped
- the verticals of the first pivot bearings, the second pivot bearings and the third pivot bearings are arranged in an arrangement range which lies between the vertical of the main bearing point and the vertical of the line of the surface of the second drive shaft which is furthest away from the vertical of the main bearing point when the latter occupies the maximum intended horizontal distance from the vertical of the main bearing point.
- a machine frame is initially provided, which can be designed in particular as a frame.
- a rectangular frame made of tubes can be the basis for further features of the invention, which are described below.
- Features described below, i.e. functional elements of the invention, can be directly connected to the machine frame in a fixed or movable manner, or can be arranged indirectly on it via further intermediate components.
- the frame lies in a plane to which reference is made as the horizontal. As a rule, this horizontal is the same as the horizontal relative to the force normal of the gravitational force of the earth. The horizontal is therefore arranged perpendicular to the force normal.
- a first shaft which can also be referred to as a support shaft, is provided for supporting the first roll of material web.
- This shaft can be rotatably mounted in the main bearing point for unwinding, which is arranged on or in the machine frame.
- the main bearing point or some of its components are fixed to the machine frame, i.e. arranged immovably.
- the main bearing point can comprise two support surfaces, which are preferably spaced apart from one another in the axial direction of the shaft, so that the shaft can be placed with its ends on the support surfaces.
- the support surfaces can be surrounded by a pair of supports, with the supports of the pair of supports also being spaced apart from one another. This arrangement just described makes it possible to unwind the material web from the roll of material web.
- the line or plane that is arranged orthogonal to the horizontal and runs through the shaft placed in the main bearing point is referred to below as the vertical of the main bearing point.
- each end of the drive shaft is mounted in a swivel arm of a first Swivel arm pairs can be mounted, the first ends of which are pivotally mounted with first pivot bearings in the machine frame and the second ends of which are designed to receive the shaft of the first material web roll and/or to support the shaft of a second material web roll.
- the secondary storage location can be provided with a lower load-bearing capacity than the main storage location, which means that the secondary storage location can be constructed cost-effectively.
- a new roll of material can be fed to the device by depositing it in the secondary storage location and keeping it ready. After the material has been unwound from the first roll of material, the new second roll of material can then be fed to the main storage location so that the unwinding process can then be continued.
- the line or plane that is orthogonal to the horizontal and runs through the second pivot bearings is referred to below as the vertical of the second pivot bearings.
- a second drive shaft is provided to drive the material web roll, which is located on the secondary bearing point, which in turn acts on the outer circumference of the material web roll stored on the secondary bearing point and transmits the driving force to it.
- the second drive shaft can in turn apply the driving force to the material web roll directly, i.e. via direct contact or indirectly via other elements that transmit the driving force.
- the line or plane that is arranged orthogonally to the horizontal and runs through the second drive shaft is referred to below as the vertical of the second drive shaft.
- a third pair of swivel arms is provided.
- the swivel arms are pivotally mounted in the machine frame using third swivel bearings.
- One end of the second drive shaft can be mounted in each swivel arm of this pair of swivel arms.
- the line or plane that is arranged orthogonally to the horizontal and runs through the second swivel bearings is referred to below as the vertical of the second swivel bearings.
- the swivel arms of the second pair of swivel arms are also swiveled by actuators, which can be designed as piston-cylinder units.
- the pressing force of the drive shaft on the material web roll can be kept constant or essentially constant even as its circumference decreases.
- the verticals of the first pivot bearings, the second pivot bearings and the third pivot bearings are arranged in an arrangement area which lies between the vertical of the main bearing point and the vertical of the second drive shaft when the latter occupies the maximum intended horizontal distance from the vertical of the main bearing point, or between the vertical of the main bearing point and the vertical of the line of the surface of the second drive shaft which is furthest away from the vertical of the main bearing point, when the latter occupies the maximum intended horizontal distance from the vertical of the main bearing point.
- This arrangement makes it possible to set up the entire device for unwinding a material web with as little space as possible in the transport direction of the material web.
- a short installation length is particularly important in this transport direction, given the number of similar devices that must be provided when producing a multi-layer tube for bags and sacks.
- the second pivot bearings and/or the third pivot bearings are arranged closer to the vertical of the main bearing point than the first pivot bearings.
- the verticals of the pivot bearings mentioned are decisive in relation to the term "closer”.
- the pivot bearings for the first drive shaft are the furthest away from the main bearing point compared to the other pivot bearings mentioned.
- the pivot arms of the first pair of pivot arms are arranged further away than the pivot arms of the second and third pair of pivot arms. In this case, it is possible for the first pivot arms to be movable past the other pivot arms.
- the first pair of pivot arms can be movable over a larger pivot range in which the first drive shaft can drive the first roll of material web with good effect.
- the pivot bearings of the second and third pivot arm pairs are aligned with each other.
- the verticals of the second and third pivot bearings lie on a common plane.
- a storage device is provided on which the shaft of the first and/or the second material web roll can be deposited at a deposit point.
- the storage device comprises vertical supports for supporting rails on which the shaft of the material web roll can roll, wherein the vertical supports are arranged further away from the vertical of the main bearing point than the vertical of the first pivot bearing.
- the vertical of the first pivot bearing is further away from the vertical of the main bearing point than the vertical of the second and/or the vertical of the third pivot bearing, this means that all pivot bearings are arranged between the vertical of the main bearing point and the vertical of the storage device, whereby the structural length of the device can be shortened even further.
- the first pair of swivel arms and/or the second pair of swivel arms and/or the third pair of swivel arms can be swiveled by means of at least one swivel arm drive, with at least one of the swivel arm drives being pivotably mounted on a swivel arm with its first end and being rotatably mounted in the machine frame via a pivot bearing with its second end, with the vertical of the pivot bearing being arranged in the arrangement area.
- the swivel bearings of the device therefore do not require any additional installation space, so that the device is designed to save space.
- a fourth pair of swivel arms is provided, the first ends of which are pivotally mounted in the machine frame by means of fourth swivel bearings and the second ends of which carry a feed roller and/or a separating knife, the verticals of the fourth swivel bearings in the This means that even if another pair of swivel arms is provided, the installation space remains limited, so that despite additional functional elements, the arrangement area does not have to be enlarged, so that the installation space can remain small.
- the verticals of the fourth pivot bearings are arranged closer to the vertical of the main bearing point than the verticals of the first, second and/or third pivot bearings.
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022212401.4A DE102022212401A1 (de) | 2022-11-21 | 2022-11-21 | Vorrichtung zum Abwickeln einer Materialbahn von mehreren Materialbahnrollen |
| PCT/EP2023/082495 WO2024110439A1 (de) | 2022-11-21 | 2023-11-21 | Vorrichtung zum abwickeln einer materialbahn von mehreren materialbahnrollen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4622903A1 true EP4622903A1 (de) | 2025-10-01 |
Family
ID=88923783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23810320.4A Pending EP4622903A1 (de) | 2022-11-21 | 2023-11-21 | Vorrichtung zum abwickeln einer materialbahn von mehreren materialbahnrollen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4622903A1 (de) |
| CN (1) | CN120548292A (de) |
| DE (1) | DE102022212401A1 (de) |
| WO (1) | WO2024110439A1 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820837B2 (en) * | 2002-12-20 | 2004-11-23 | Kimberly-Clark Worldwide, Inc. | Unwind system with flying-splice roll changing |
| DE102013109427B4 (de) * | 2013-08-30 | 2019-12-19 | PSA Technology S.à.r.l. | Vorrichtung zum automatischen Abwickeln von bahnförmigen Materialien und Verfahren zum Betreiben einer derartigen Vorrichtung |
-
2022
- 2022-11-21 DE DE102022212401.4A patent/DE102022212401A1/de active Pending
-
2023
- 2023-11-21 CN CN202380091703.7A patent/CN120548292A/zh active Pending
- 2023-11-21 WO PCT/EP2023/082495 patent/WO2024110439A1/de not_active Ceased
- 2023-11-21 EP EP23810320.4A patent/EP4622903A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024110439A1 (de) | 2024-05-30 |
| DE102022212401A1 (de) | 2024-05-23 |
| CN120548292A (zh) | 2025-08-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
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| 17P | Request for examination filed |
Effective date: 20250623 |
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| AK | Designated contracting states |
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| DAX | Request for extension of the european patent (deleted) | ||
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WINDMOELLER & HOELSCHER SE & CO. KG |