Abstract: A forging machine includes a support having two sidewalls, and two track plates attached respectively to the sidewalls. A slide body of a die assembly is mounted slidably inside the support between the sidewalls. Two first rolling devices are respectively mounted on the track plates near the front of the support to contact the slide body. Two second rolling devices are mounted respectively on the sidewalls above the track plates and near the rear of the support to contact the slide body. Due to the first and second rolling devices contacting the slide body near the front and rear of the support, the slide body can slide stably in the support without positional deviation.

Abstract: An adjusting device for adjusting the length of a blank for a forging machine is provided. The device includes a cutter mounted on a support; an adjustment seat disposed movably on the support; a stop member fixed to the adjustment seat to stop and abut against an end of a rod-shaped material; a drive unit mounted on the support to move the adjustment seat so as to change the position of the stop member for adjustment of the length of the blank; and at least one fluid pressure-operated fixing unit associated with the adjustment seat. The fixing unit immobilizes the adjustment seat by abutting against the support when the fixing unit is pressurized, or permits the adjustment seat to move when the fixing unit is de-pressurized.

Abstract: A forming machine includes a first transmission mechanism connected to a cutting mechanism and a conveying clamp mechanism, a drive mechanism for driving the first transmission mechanism; and a second transmission mechanism driven by the drive mechanism for driving a feeding mechanism. The second transmission mechanism includes a driven wheel driven by the drive mechanism, a first swing member connected to the feeding mechanism and confronting the driven wheel, an eccentric pin projecting axially from the driven wheel and connected slidably to the first swing member. The eccentric pin slides relative to the first swing member while rotating along with the driven wheel so that the first swing member is swung to and fro in a cycle motion and completes one cycle for each revolution of the eccentric pin.

Abstract: A workpiece holding clamp mechanism includes first and second clamp arms associated with respective clamp jaws. The first clamp arm is mounted on a transmission shaft, and has a sleeve part sleeved onto the transmission shaft, a first prong extending axially from the sleeve part and having a shaft receiving recess, a second prong extending axially from the sleeve part and spaced apart transversely from the transmission shaft, and a connection part bridging the first and second prongs. The first and second prongs cooperate with the sleeve part and the connection part to confine a receiving space which is aligned with a key groove of the transmission shaft into which a key is inserted. The connection part reduces an incidence of crack formation due to stresses in the first clamp arm.

Abstract: A forging machine includes a machine bed, a driving unit driven by a driving source to activate a feeding unit, a sliding seat unit, and a forging unit. The machine bed includes left and right sidewalls. The driving unit is disposed at an inner side of the left sidewall. The sliding seat unit is disposed at an outer side of the right sidewalls, and includes a sliding plate unit that can reciprocate forwardly and rearwardly to activate a cutting unit and a holding unit. The sliding plate unit is guided by a guiding roller mechanism such that the sliding plate unit moves smoothly.

Abstract: A forging machine includes a housing unit fixed on a machine bed and having opposite first and second side portions. A workpiece-holding mechanism and a cutting mechanism are disposed on the first side portion of the housing unit, and are driven by a first driving device which is activated by a second driving device that drives a holder-opening mechanism disposed on the second side portion of the housing unit. An outer shield is disposed to cover the housing unit. A platform is disposed outside the outer shield, and is adjacent to the holder-opening mechanism such that a technician can stand thereon to monitor the forging operation. The workpiece-holding mechanism has a plurality of holders that do not move between a forging module and the platform.

Abstract: A feeding mechanism for a forging machine includes a roller unit consisting of a pair of feeding rollers. Two rotating shafts are connected respectively and fixedly to the feeding rollers at an end portion, and to outer and inner driven gears at the other end portion. The inner and outer driven gears mesh with each other. A driving gear meshes with the inner driven gear, and rotates reciprocally within a predetermined angular range. The driving gear and the outer driven gear are sector gears. Each of the inner and outer driven gears is mounted on the corresponding rotating shaft by means of a unidirectional bearing so as to convert reciprocal rotation of the driving gear into intermittent unidirectional rotation of each of the rollers. Each of the rollers is provided with a braking member, which includes a circumferentially extending brake plate that presses against an outer periphery of the corresponding roller.

Abstract: A screwhead forming apparatus includes an operating mechanism driven to reciprocate, a male die driven by the operating mechanism to reciprocate and having a die cavity of a predetermined shape, a stationary female die, and a punch rod driven by the operating mechanism to impel the blank into the die cavity of the male die so as to forge an elongated blank. A compression spring assembly consists of a plurality of spring units which are disposed between the operating mechanism and the male die and which have different spring forces so that the spring assembly creates a successively increasing spring force to bias the male die to press against the female die after the male die is brought to contact the female die by the operating mechanism during movement of the punch rod relative to the female die. The spring units are compressed completely just before the blank is moved entirely into the die cavity of the male die so as to prevent removal of the male die from the female die.

Abstract: A workpiece ejecting mechanism for a forging apparatus includes a rod passage formed in a machine bed, and a workpiece pushing rod and a driving rod which are received slidably in the rod passage. An air passage is formed in the machine bed and is communicated fluidly with the rod passage so as to fill the rod passage with compressed air via the air passage, thereby biasing the pushing rod to move away from the driving rod until a front shoulder of the pushing rod contacts a front blocking unit, and thereby biasing the driving rod to move away from the pushing rod until a rear shoulder of the driving rod contacts a rear blocking unit.

Abstract: An apparatus for recovering oil from used lubricant includes a centrifugal separation unit having a centrifugal tank for receiving and separating used lubricant and a scraping unit having blades provided in the tank for scraping contaminant from the inner side of the wall of the tank. A synchronizing mechanism is provided for simultaneously rotating the tank and the blades at different rates to cause the blades to scrape the contaminant.