Method for aiding barrate cutting section and supporting material for covering cut
A drum, notch technology, applied in the field of cutting section for auxiliary drum and supporting material covering the notch
Inactive Publication Date: 2008-11-05
THE GOODYEAR TIRE & RUBBER CO
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Problems solved by technology
However, this approach requires complex controllers for controlling the individual negative pressure pumps in order to achieve economics of operation and the ability to create an attractive attachment surface that can be rapidly adapted to have Concrete flat sheets of flat sheets of different sized surface areas
Method used
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[0036] An auxiliary drum supply basically consists of a perforated hollow cylinder (drum) whose diameter is significantly larger than that of a tire building drum. The drum is rotatable about its axis. The cylindrical part of the drum is perforated (with many holes), the perforated part accounts for 50% to 80% of its cylindrical surface and preferably accounts for about 66%, and the ends of the drum are sealed against air flow, except through The air pump draws air from the drum in addition to the air flow created inside the drum. Air enters the drum through the perforated surface as the pressure inside is reduced relative to the outside air pressure. The terms "drum", "measuring drum" and "auxiliary drum" supply are considered synonymous herein, unless the term "drum" refers specifically to an element or component of an auxiliary drum supply.
[0037] FIG. 1A is a schematic oblique view of a perforated portion 104 of a cylindrical drum 102 of an auxiliary drum supply device...
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The present invention relates to cutting sections of aiding barrate (100, 200, 300). Said aiding barrate having columnar outer surfaces (202, 306) comprises cuts (204, 224, 330) extending from one end of columnar outer surfaces ti the other end, a hilar plate (322) with size and shape similar to that of the cuts, and a on-off mechanism for opening and closing said hilar plate. Said on-off mechanism for selectively opening and closing the hilar plate comprises a slightness pole (324) with its one end for supporting the hilar plate and the other end pivotablely connected to one fixing portion (point) of the barrate, a spring (326) extending between inner surface of the hilar plate and the other fixing portion of the barrate, and an expandable inflation tube (328) displaced between the pole and tother fixing portion of the barrate. The present invention also provides a method of supporting material for covering cut of aiding barrate, through which the cut is opened during a cutting and closed when the cutting is stopped. When the material has been cut, the hilar plate is closed to prevent the cutting end of the material coming down to the cut, wherein the cutting end of the material is supported to ensure that the material is transferred reliably to the tyre forming barrate.
Description
[0001] Cross References to Related Applications [0002] This application is related to a U.S. patent application entitled FALSE DRUM WITH A VARIABLE AREA VACUUM-SURFACE, Attorney Docket No. DN 2001169 USA, filed on the same date as this. technical field [0003] The present invention relates to methods and apparatus for use in the preparation of materials for the manufacture of pneumatic tires. In particular, the present invention relates to the cutting section of a "false drum" server where tire building material (such as elastomeric sheet) is held before being transferred onto a tire building drum. The drum supply is cut at the same time. Background technique [0004] It is known that in the manufacture of vehicle tires, for example for automobiles, the manufacture of a so-called carcass is first accomplished by sequentially assembling several different components. In other words, the different carcass types included in a production range can be distinguished from each ...
Claims
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IPC IPC(8): B29D30/30B65H19/22B65H5/12B29D30/06B29D30/08B29D30/24
CPCB29D2030/4493B29D2030/241B29D2030/4468B29D30/0606
Inventor M·-L·B·J·卡瓦洛蒂J·K·雷德塞斯
Owner THE GOODYEAR TIRE & RUBBER CO