摘要:
The present invention provides an apparatus and system for mixing castable polyurethanes for dispensing into a golf ball mold for application to a golf ball sub-assembly. The apparatus comprises a mixing block for merging together at least two polyurethane components, then a temperature control chamber to remove excess heat that is produced by the exothermic reaction resulting from the mixing of the urethane components. The mixing of the components is by passing the components through a tortuous mixing path created by a disposable static mixer element. The mixed components are dispensed into the golf ball mold by a multiple lead nozzle assembly.
摘要:
A nozzle for an injection molding machine is disclosed. The nozzle includes a nozzle body, an inner nozzle, and an outer nozzle. The nozzle defines two independent flow paths therethrough. The nozzle can simultaneously discharge two materials. A method of using the nozzle and a resulting golf ball product are also disclosed.
摘要:
A method for reliably forming golf balls using solid cores is described. The method includes using a freezing apparatus to freeze a core. The core may be frozen at any desired temperature, for any desired duration. The time and duration may be chosen in order to achieve a desired size or effective modulus. When a core is sufficiently frozen, it may be placed in a molding apparatus. In order to minimize condensation or frost that may form on a frozen core, a dehumidifying method or apparatus may be included and a layer is preferably molded around the core soon after it is removed from the freezing apparatus.
摘要:
The present invention is directed to multi-layer golf balls having at least three core layers, at least one cover layer, and at least one intermediate layer between the core and the cover layer that acts as a vapor barrier. Advantageously, the at least three core layers have a hardness gradient that increases toward the at least one intermediate vapor barrier layer.
摘要:
A golf ball mold having a non-planar parting surface that is formed a computerized modeling system such as CAD or CAE in combination with a CNC machine tool. The mold is comprised of hemispherical upper and lower mold halves being removably mated along the non-planar parting line that is distinct from the position corresponding to an equator line of the spherical cavity. Each mold half having an interior cavity detail for creating a pattern of dimples on the cover of the golf ball, wherein at least one dimple lies across an equator of the ball and the parting line passes around and between interdigitated dimples without intersecting them, therein creating a “seamless” golf ball. The non-planar surface of the upper mold half comprising at least three true sprues for venting of air and excess material; and at least three false sprues for the placement of tabs on the cover for use in aligning the golf ball as it is spun in a buffing machine.
摘要:
A method of forming a water vapor barrier layer to a core of a golf ball is provided. The method includes placing the core of the golf ball into a vapor barrier composition, withdrawing the lifting device, and spinning and optionally oscillating the core within the composition for a time sufficient for the composition to form a layer on the core. The present invention also provides an apparatus that can be used to form a water vapor barrier layer on the core.
摘要:
A nozzle for an injection molding machine is disclosed. The nozzle includes a nozzle body, an inner nozzle, and an outer nozzle. The nozzle defines two independent flow paths therethrough. The nozzle can simultaneously discharge two materials. A method of using the nozzle and a resulting golf ball product are also disclosed.
摘要:
An improved mold frame for making a fast thermal response mold is disclosed. The mold frame has a plurality of rows with each row having a plurality of cavities. The mold frame is constructed of two half-molds, each half-mold containing an upper and lower plate vacuum brazed together to form flow channels that allow thermal mediums to pass in close proximity to the cavity. Without any direct contact between the flow mediums and the cavities the necessity for O-rings is eliminated. Without O-rings the compression molding of thermoplastic materials may be at temperatures greater than 300° F.
摘要:
A method for making a multilayer golf ball including a solid center having a center hardness, a plurality of laminates cut into a plurality of shapes formed around the center to create an inner ball, and a cover formed around the inner ball, wherein the plurality of layers can include at least a first layer having a hardness greater than the center hardness and a second layer having a hardness greater than the first layer hardness, and optionally a third layer disposed between the first and the second layers having a hardness greater than the first layer hardness.
摘要:
A multilayer golf ball including a solid center having a center hardness, a plurality of laminates cut into a plurality of shapes formed around the center to create an inner ball, and a cover formed around the inner ball, wherein the plurality of layers can include at least a first layer having a hardness greater than the center hardness and a second layer having a hardness greater than the first layer hardness, and optionally a third layer disposed between the first and the second layers having a hardness greater than the first layer hardness.