Systems, devices, and methods are described for extruding materials. In certain embodiments, one or more hollow billets are loaded onto an elongate mandrel bar and transported along the mandrel bar to a rotating die. The billets are transported through fluid clamps, which engage the mandrel bar and provide cooling fluid to the mandrel bar tip, and through mandrel grips, which engage the mandrel bar and prevent the mandrel bar from rotating. One or more press-rams advance the billets through a centering insert and into the rotating die. A quench assembly is provided at an extrusion end of the extrusion press to quench the extruded material. A programmable logic controller may be provided to control, at least in part, operations of the extrusion press system.

A mold changing apparatus comprises a conveyance unit includes a driving force for positioning the mold in addition to loading and unloading a mold into and from the injection molding machine, and a fluid pressure cylinder to assist acceleration and deceleration of the mold in cooperation with the conveying unit.

An imprinting apparatus includes a first conveyer unit, a flexible imprinting mold film and a driving roller set. The first conveyer is adapted to convey a workpiece to a working region of the imprinting apparatus. The flexible imprinting mold film has imprinting segments. At least one of the imprinting segments is located in the working region. The workpiece is adapted to be imprinted in the working region through the corresponding imprinting segment. The flexible imprinting mold film is partially rolled around the driving roller set, the imprinting segment located in the working region is expanded from the driving roller set, and the driving roller set is adapted to drive the flexible imprinting mold film, such that at least another one of the imprinting segments rolled around the driving roller set is expanded from the driving roller set and moved to the working region. Besides, an imprinting method is also provided.

An assembly system includes a feeding mechanism adapted to feed a heat shrinkable tube, a cutting mechanism, a clamping mechanism, a robot, and a vision system. The cutting mechanism is adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube fed by the feeding mechanism. The clamping mechanism is adapted to clamp the heat shrinkable tube during cutting the heat shrinkable tube with the cutting mechanism. The robot is adapted to grip the section of heat shrinkable tube cut off from the heat shrinkable tube. The vision system is adapted to guide the robot to sleeve the section of heat shrinkable tube onto a wire of an electrical device.

A rotary tablet press having a rotatably driven rotor and a die plate with a plurality of die bores. A plurality of upper and lower punches are configured to produce tablets in the plurality of die bores. The tablets are monitored for one or more characteristics and are sorted by an ejection apparatus according to the one or more characteristics into a reject channel and a satisfactory channel.

In one aspect, a seal case is provided for a roller bearing assembly having a central axis. The seal case includes an annular first end section including a rim configured to engage an outer ring, an intermediate section including a radial wall extending inwardly from the first end section and an axial wall extending axially away from the radial wall and the first end section, and an annular second end section extending radially inward from the axial wall of the intermediate section. The seal case further includes an insert of the first end section made of a first material. The first end section and the radial wall of the intermediate section include a second material joined to the insert. The first material of the insert may be selected to provide improved durability and/or to resist expansion and contraction of the first end section caused by changes in temperature.

In one aspect, a seal case is provided for a roller bearing assembly having a central axis. The seal case includes an annular first end section including a rim configured to engage an outer ring, an intermediate section including a radial wall extending inwardly from the first end section and an axial wall extending axially away from the radial wall and the first end section, and an annular second end section extending radially inward from the axial wall of the intermediate section. The seal case further includes an insert of the first end section made of a first material. The first end section and the radial wall of the intermediate section include a second material joined to the insert. The first material of the insert may be selected to provide improved durability and/or to resist expansion and contraction of the first end section caused by changes in temperature.

The disclosure relates to method and system for managing production of molded polymer or polyurethane products. In the various embodiments, a plurality of autonomous mobile platforms (AMPs) are interchangeably engageable with mold-carrying trolleys to provide self-propelled trolleys. Each self-propelled trolley is advanced through production station(s) and curing station to complete a production cycle. Between production cycles, the trolley may be diverted away for non-production task, e.g. mold replacement, without delaying subsequent or other trolleys. During curing, an AMP may be disengaged from a trolley and redeployed to other trolleys.

Automated system and method wherein the color of each core is detected and distinguished before the core is covered, and any core having a non-conforming core color is rejected and released/removed/eliminated from further processing.

An additive feeder system is presented which is operable for use in a plastic injection molding machine including an injection component and a clamping component. The additive feeder system includes a feeder control unit, a feeder supply mechanism and feeder dosage control mechanism. The additive feeder system is operable to provide a specific dosage of the additive materiel in real-time for mixing with the raw material to achieve desired product characteristics. The additive feeder system may be applied to injection molding and extrusion, such as molding processes, plastic molding processes, blow molding, compression molding, extrusion molding, injection molding and laminating, and comprising additive feeders, for example for color mixing and nutrient supplements.