| 摘要 |
1511263 Re-rolling rolled sheet material; winding webs CHROMALLOY AMERICAN CORP 1 May 1975 [10 May 1974] 18149/75 Headings B8M and B8R Sheet material 13a is unrolled from a supply roll 13 at a first station of an apparatus, advanced in a longitudinal direction and rerolled to form a roll 13d at a second station of the apparatus. The sheet is guided on to a support roller mechanism having three rollers 110, 111 and 112 by a guide roller 127 mounted on a pivoted arm 124. Shields 123 of the pivoted arm 124 assist in forming the initial roll 13d. The guide roller 127 is biased towards the roller mechanism so that it presses against one surface of the sheet, and as the roll 13d progressively becomes larger the arm 124, shields 123 and roller 127 progressively move away from the roller mechanism to assume the dashed line position (see Fig. 11) when the roller 127 presses against the other surface of the sheet material. Belts 12 trained around rollers 14, 15 translate the material towards the second station. The sheet material can be severed laterally by a rotating cutter blade 72 travelling along a lateral slot 71 relative to the longitudinal direction. The rollers 14, 15 are supported on a carriage 10 which is adjustable in lateral directions and is itself supported on an undercarriage 24. The carriage 10 pivots about an axis 42 when off-set rollers 45, 46, (47) and (48) Fig. 1 (not shown) are rotated by means of a handle 50 to control the unrolling direction of the material. Eject bars (55), operated by air-bags (57) Fig. 8 (not shown) can eject the supply roll 13 rearwardly when required. The material travels along a table 60 which has multiple ports 64 supplying pressurized gas or air for supporting the material. A pivoted arm 91 has a safety shield 90 to shield the blade 72 during a cutting operation and pivots, when actuated, to grip the material between its roller 103 and roller 104 to allow a meter (105) Fig. 1 (not shown) to register the material length. Actuator means 140 is used to rotate the arm 124 forwardly to dump the roll 13d. Air bags 152 and ejector arm 150 can eject the roll 13d. A control panel (175) Fig. 1 (not shown) controls the operation. The shields 123 may be made of polytetrafluoroethylene. The sheet materials include carpets, linoleum, paper, cardboard, rug cushioning materials, foam rubber, urethane foam, felt padding, textiles, canvas, roofing felt, burlap, plastics, leather, cork &c.
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