摘要:
A method and apparatus is provided for separating two or more annular members such as bead assemblies or bead and apex assemblies. First, a flexible member is inserted into the annulus of the annular members. Next, the flexible member is inflated until the outer surface of the flexible member contacts the inner diameter of the annular member. Then the flexible member is axially expanded until the annular members are separated. Then the flexible member is deflated so that the annular members can be removed.
摘要:
A method of forming a tire apex and bead assembly is disclosed. The method and apparatus includes mounting a bead in a rotatable bead holder, rotating the bead and bead holder and extruding one or more passes of a continuous strip of elastomeric material onto the outer surface of the bead, and shaping the one or more passes of elastomeric material between two opposed rotating rollers.
摘要:
A method and apparatus is provided for separating two or more annular members such as bead assemblies or bead and apex assemblies. First, a flexible member is inserted into the annulus of the annular members. Next, the flexible member is inflated until the outer surface of the flexible member contacts the inner diameter of the annular member. Then the flexible member is axially expanded until the annular members are separated. Then the flexible member is deflated so that the annular members can be removed.
摘要:
Changing the contour of a recess (12) in a body of solid material to a revised contour wherein a pattern (24) is made having the revised contour and this pattern is placed in the recess with a curable plastic material (31). After the curable plastic material is hardened, the pattern is removed providing the revised contour (30) of the recess. The body of solid material can be a flow channel block.
摘要:
An extrusion apparatus for extruding visco-elastic materials includes an extruder head for preliminary shaping of a visco-elastic melt and a splice bar die assembly for final shaping of the visco-elastic melt. Both the extruder head and the die assembly have flow channels that include low elongational flow zones where elongational flow is reduced and controlled, thereby reducing and controlling the resulting shrinkage of the extrudate. Extrudate shrinkage can also be reduced and controlled by controlling the die swell of the visco-elastic melt by rotating the roller at a selected roller speed less than the melt speed.
摘要:
A segmented tire core structure may include a segmented tire core and a segmented tire core removal system. The segmented tire core removal system may include a first wheel that is rotatable to cause a first section of the segmented tire core to move away from an inner surface of the cured tire and a second wheel that is rotatable to cause a second section of the segmented tire core to move away from an inner surface of the cured tire.
摘要:
A strip of sheet material is wound on a spool by a driving belt wrapped around spaced rollers of a surface winder which urge the sheet material into contact with the spool, rotating the spool, and at the same time, applying the sheet material to the spool, with layers of the material being separated by a liner wrapped around the spool as the sheet material is being applied.
摘要:
A hybrid liner (40) and system for using a hybrid liner includes a first portion (42) being made of one material and a second portion (44) being made of a separate material. The two materials have a different propensity for sticking to the unvulcanized rubber component (20) as well as a different cost. The invention concerns using the less sticky, more expensive liner in the areas of the liner roll where sticking is more likely to occur and using the less expensive material where liner to rubber adhesion is less of a problem.
摘要:
An apparatus forms an elastomeric strip. The apparatus includes a roller and an adjustable surface. The roller has a cylindrical surface. The roller rotates at a predetermined angular velocity. The adjustable surface confronts the cylindrical surface and has a first stationary position relative to the cylindrical surface such that the apparatus forms an elastomeric strip having a first thickness. The adjustable surface is adjustably pivotable relative to the cylindrical surface such that the adjustable surface moves to a second stationary position for forming an elastomeric strip having a second thickness.
摘要:
An apparatus forms an elastomeric strip. The apparatus includes a roller and an adjustable surface. The roller has a cylindrical surface. The roller rotates at a predetermined angular velocity. The adjustable surface confronts the cylindrical surface and has a first stationary position relative to the cylindrical surface such that the apparatus forms an elastomeric strip having a first thickness. The adjustable surface is adjustably pivotable relative to the cylindrical surface such that the adjustable surface moves to a second stationary position for forming an elastomeric strip having a second thickness.