Method for unwinding a bobbin of a coiled sheet and kit to unwind a sheet of material wound in a bobbin
A roll and sheet technology, applied in the direction of winding strip, application, thin material processing, etc., can solve the problem of stickiness of the sheet roll, and achieve the effect of reducing mechanical force, improving productivity, and high unwinding speed
Active Publication Date: 2020-01-03
PHILIP MORRIS PROD SA
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Following storage of homogenized tobacco material in a controlled temperature cold room, problems with stickiness in rolls of homogenized tobacco material sheets may arise when the storage time exceeds one or two days
Method used
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Embodiment Construction
[0067] first reference figure 1 and figure 2 , wherein an apparatus for unwinding a sheet of material 13 wound in a reel according to a comparative example is shown and denoted by reference numeral 10 .
[0068]The device 10 is adapted to unwind a bobbin 12 .
[0069] By way of example, the roll 12 may be a roll of homogenized tobacco material. However, the invention is applicable to all industries where the manufacturing process involves the unwinding of rolls with sticky and fragile sheets, such as the paper industry or industries using polymeric sheets rolled in rolls.
[0070] figure 1 and figure 2 The illustrated mandrel 12 has a circular, eg cylindrical, shape. However, the invention works well with reels even when the reels do not have a round shape.
[0071] The device 10 includes a roll holder 20 in which the roll 12 is placed.
[0072] The roll holder 20 holds the roll 12 . Preferably, the center of the roll holder 20 coincides with the center 17 of the rol...
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Abstract
The present invention relates to a method for unwinding a bobbin (12) of a coiled sheet (13), the method comprising the steps of: providing a bobbin of a coiled sheet, the bobbin having a first rotation axis (17) and comprising a free portion (14) of the sheet unwound from the bobbin, the free portion (14) defining a contact line (16) as a line separating the free portion and the remaining of thecoiled sheet (13); providing a roller (30) having a second rotation axis substantially parallel to the first rotation axis (17); putting the roller (30) in contact with the bobbin (12) at the contactline (16); unwinding the sheet from the bobbin (12) pulling the sheet in an unwinding direction such that an angle between the free portion of the sheet and a radius of the bobbin at the contact lineis comprised between about 110 degrees and about 150 degrees or between about 200 degrees and about 300 degrees; and while unwinding the sheet from the bobbin keeping the roller in contact with the outer surface of the bobbin. The present invention also relates to a kit to unwind a sheet of material wound in a bobbin.
Description
technical field [0001] The invention relates to a method for unwinding a roll of crimped sheet material and a kit for unwinding a sheet of material wound in a roll. In particular embodiments, methods and kits involve unwinding a sheet of homogenized tobacco material wound in a drum. Background technique [0002] Unwinding a roll of material can be a difficulty when the material rolled into a roll is both sticky, so considerable force is required to unwind it, and brittle, so it may tear easily task. Such materials are eg homogenized tobacco sheets, obtainable eg by casting sheets of homogenized tobacco material. Homogenized tobacco sheet is difficult to unwind when rolled in a roll due to its compactness, sensitivity to heat, and low tensile strength, all of which prevent, for example, simple increases applied to the sheet to unwind the roll force. [0003] In the current manufacturing process of homogenized tobacco material, the roll is placed in a rotating shaft by an ...
Claims
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IPC IPC(8): B65H16/10A24B3/14A24C5/20
CPCA24B3/14A24C5/20B65H16/103B65H2301/415185B65H2511/166B65H2513/11B65H2601/25B65H2801/54B65H2511/14B65H2220/02B65H2220/01A24F40/70A24B15/12
Inventor Y·克里普费尔M·佩里雅凯
Owner PHILIP MORRIS PROD SA