An injection mold assembly for manufacturing multiple-component articles includes opposed first and second mold halves mounted for movement in reciprocal directions along an axis of reciprocation between an open position and a closed position. A stripper plate is mounted between the first and second mold halves for reciprocation between a retracted position and an extended position when the first and second mold halves are in the open position thereof. Mold cores in one of a plurality of mold core assemblies are carried by the first mold half, and each mold core is mounted for rotation between a first position and a second position about an axis of rotation for the respective mold core assembly. The stripper plate accommodates rotation of the mold cores between the first and second positions while the stripper plate is in the retracted position.

A movable mold includes a movable mold main body and a gear piece attached to the movable mold main body so as to relatively movable, and having a cavity formation space for forming a cavity. In the gear piece, a piece-side coolant flow path includes an annular flow path surrounding the cavity formation space, a piece-side supply flow path introducing coolant into the annular flow path, and a piece-side discharge flow path introducing the coolant from the annular flow path. The piece-side coolant flow path is connected to a movable mold main body-side supply flow path of the movable mold main body and a movable mold main body-side discharge flow path of the movable mold main body and the coolant flows therein under negative pressure generated by a coolant circulation device, so the inside of the cavity can be cooled effectively.

A lacrosse head pocket and a related method of manufacture are provided. The pocket can be a molded pocket including individual molded strings, combined strings, shooting strings and support rails extending around a perimeter of the pocket. Certain pocket elements can include transition parts to smoothly transition components having different cross sections. The pocket can include a pre-formed ball channel and hole units having broadsides for connection to a head or other component. The pocket can be attached to a pocket frame, and optionally constructed from a mesh or other synthetic material that is tensioned with the pocket frame. A mold and related molding method are also provided.

A process and assembly for producing a two stage injection molded article encapsulating an oriented glass strand mat substrate. A rotary press is incorporated into the injection mold assembly and which enables repetitive repositioning of an intermediate injection molded article into a second mold defining cavity for second stage molding and simultaneous with first stage molding of a subsequent glass strand composite positioned within the first mold cavity.

A rotary mold type injection molding machine and a method for exchanging mold members of a rotary mold type injection molding machine are provided which enable relatively easy mold member exchange in a short time. The rotary mold type injection molding machine includes a fixed platen, a movable platen which is opened and closed in a horizontal direction with respect to the fixed platen, and a rotary table to which mold members are mounted and which is rotatably provided on one of the fixed platen and the movable platen. A mold-member moving mechanism which horizontally moves the mold member upon mold member exchange is provided on the rotary table.

A lacrosse head pocket and a related method of manufacture are provided. The pocket can be a molded pocket including individual molded strings, combined strings, shooting strings and support rails extending around a perimeter of the pocket. Certain pocket elements can include transition parts to smoothly transition components having different cross sections. The pocket can include a pre-formed ball channel and hole units having broadsides for connection to a head or other component. The pocket can be attached to a pocket frame, and optionally constructed from a mesh or other synthetic material that is tensioned with the pocket frame. A mold and related molding method are also provided.

A rotary-shaft type turntable positioning device of an injection molding machine includes a first encoder and a second encoder installed at a servomotor of a positioning device and a speed reducer respectively, so that after the injection molding machine finishes an injection molding, the servomotor is used to drive the driving shaft and link the output shaft to drive the driving wheel to rotate a rotary shaft, while rotating and positioning a turntable. During rotation, signals of the first encoder and the second encoder are sensed to adjust the position, so as to control the turntable to be rotated to a precise position.

A method for producing a part by molding with an embedded 2D barcode defined in the surface of the part and the embedded 2D barcode subsequently being readable using a light source and a camera, the method including providing a mold with an array of individual areas of optical anisotropic surface structures, where at least a number of the individual optical anisotropic structures forms a two-dimensional barcode or data matrix; making a replica of the mold, the replica including the array having the property that the directional reflection coefficient of the individual areas of optical anisotropic surface structures is depending on the illumination angle and detection angle in a way that is not rotational symmetric around the axis normal to the surface of the replica, the array being readable by illumination and detection of reflection intensity of the illumination source under a non-normal angle to the surface of the replica.

An injection mold assembly for manufacturing multiple-component articles includes opposed first and second mold halves mounted for movement in reciprocal directions along an axis of reciprocation between an open position and a closed position. A stripper plate is mounted between the first and second mold halves for reciprocation between a retracted position and an extended position when the first and second mold halves are in the open position thereof. Mold cores in one of a plurality of mold core assemblies are carried by the first mold half, and each mold core is mounted for rotation between a first position and a second position about an axis of rotation for the respective mold core assembly. The stripper plate accommodates rotation of the mold cores between the first and second positions while the stripper plate is in the retracted position.

An injection mold including at least one first mold portion, at least a second mold portion positioned facing the first mold portion, the first portion or the second portion of the mold being configured to be axially movable relative to respectively the second portion or the first mold portion between at least an opening position of the injection mold and a closing position of the injection mold, at least one first workstation called injection station, and at least a second workstation called insert laying station and/or an ejection station. An injection method implemented by the injection mold.