Abstract: An injection unit of injection machine operates to drive a time-belt pulley associated with a thrust bearing, a bevel ball-bearing, and a bearing nut to make a ball-bearing guiding screw move swiftly to in turn drive a movable plate to perform an injection stroke. The injection pressure transmitted backwards by a plasticized auger is sensed by a load bearer equipped with a pressure sensor something like a strain gauge. After an injection stroke, by means of another time-belt pulley and a shaft coupling, the plasticized auger is restored to its original position and ready for a next cyclic motion. During the cyclic injection process, the load bearer is in charge of sensing the pressure change and reckoning the back pressure in order to obtain the best injection quality.

Abstract: A color wheel comprises a motor, a plurality of filter segments and an obstructing plate. The motor has a rotating casing. Protruding from the center of an upper side of the rotating casing, there is a rotating shaft. One end of each fan-shaped filter segment is in contact with the rotating shaft, and one side of its lower surface has a formation of a glue area to be glued onto an upper side of the motor, forming a rear clearance from the upper side. The filter segments are joined to each other to become a ring shape surrounding the rotating shaft. A center hole of the ring-shaped obstructing plate is mounted on the rotating shaft, keeping a clearance from the filter segment. On the outside of the obstructing plate is a ring recess. The invention provides ways of heat insulation and radiation for the filter segments, to enhance product quality.

Abstract: An apparatus having a movable mold clamping seat for high temperature fluid injection molding includes a barrel supporting seat, a barrel, a injecting nozzle, a set of hydraulic cylinders, a static platen, a movable plate and a mold. The barrel supporting seat is jointed to a machine body. The barrel has one end fixed to the barrel supporting seat, and the injecting nozzle is fixed to the other end. The static platen is movable on the machine body. One end of each hydraulic cylinder is fixed to the barrel supporting seat, while the end of is fixed to the static platen. The center lines of the hydraulic cylinders are in the same plane as the center line of the barrel. By pulling the hydraulic cylinder, the injecting nozzle passes through a hole in the static platen to contact a sprue bushing for injecting a high temperature fluid into the mold.

Abstract: An automatic embossing device for plastic floor tile comprises a main frame, a pressing wheel module, a tape supply control wheel module, a position mark sensing module, a tape tension-balancing module, and a tape supply module. When the pressing process for plastic floor tile is performed, the rotation speed of the pressing wheel is first set. The rotation speed of the tape supply control wheel is then set. A zero-point position of rotation angle on the pressing wheel is randomly set. A computer is used to partition and determine a plurality of angle positions; The computer is used to compare the signal of the angle position to that of the position mark on the printed tape to obtain a time difference when the pressing process starts. A distance difference is obtained from the time difference. The computer is used to calculate out the speed compensation according to the rotation speed of the tape supply, control wheel and to adjust immediately the rotation speed of the tape supply control wheel.

Abstract: An injection molding apparatus has a barrel for conveying a molten substance, a screw, a first base for supporting the barrel, a power unit, a second base for supporting the power unit, links, a motor, a screw driver, a plurality of injection guide links, and an injection connecting plate. The first base is threadedly secured to the bed. The barrel has one end secured to the first base. The power unit is fixed on the second base. The links each have one end connected to the first base and the other end connected to the second base. The screw driver between the bases is moved under the guidance of the injection guide links. The injection guide links penetrate through the second base, having one end secured to the screw driver with the injection connecting plate provided in the second base. The injection connecting plate is pivotably secured to the power unit.

Abstract: An injection unit of injection machine operates to drive a time-belt pulley associated with a thrust bearing, a bevel ball-bearing, and a bearing nut to make a ball-bearing guiding screw move swiftly to in turn drive a movable plate to perform an injection stroke. The injection pressure transmitted backwards by a plasticized auger is sensed by a load bearer equipped with a pressure sensor something like a strain gauge. After an injection stroke, by means of another time-belt pulley and a shaft coupling, the plasticized auger is restored to its original position and ready for a next cyclic motion. During the cyclic injection process, the load bearer is in charge of sensing the pressure change and reckoning the back pressure in order to obtain the best injection quality.

Abstract: A clamping unit and method thereof, in which a servo-motor mounted on a rear platen is used for driving two ball screws with pre-load hydraulic cylinders so as to acuate the outward-bending toggle mechanism to provide mold-opening and mold-clamping functions; by using a limited space, a servo-motor mounted on the movable platen is used for driving a nut to turn so as to cause the screw and the ejector bar to be moved back and forth; finally, an electric motor on the rear, platen will drive a mold-adjusting mechanism, and a servo-motor mounted on the platen is also operated so as to complete the mold adjustment quickly and automatically.

Abstract: A screw rotating and advancing device for an injection molding machine, in which a movable pressure plate is provided with a servomotor to drive a ball screw in association with a ball nut provided at a rear fixing plate, so that the movable pressure plate homogeneously drives a screw shaft passing through a front fixing plate to perform the operations of injection, holding pressure, and measuring back-pressure; and accomplish a close-loop control of the pressure of molding material by using a force sensor. The other side of the movable pressure plate is provided with a servomotor to rotate the screw shaft, so that the rotational speed of the screw shaft can be precisely controlled. Furthermore, the present invention includes a pre-load system including at least two pre-loaded hydraulic cylinders, at least tow pistons and a communicating tube to balance the pressure difference between the prepressurized hydraulic cylinders.

Abstract: A clamping unit and method thereof, in which a servo-motor mounted on a rear platen is used for driving two ball screws with pre-load hydraulic cylinders so as to actuate the outward-bending toggle mechanism to provide mold-opening and mold-clamping functions; by using a limited space, a servo-motor mounted on the movable platen is used for driving a nut to turn so as to cause the screw and the ejector bar to be moved back and forth; finally, an electric motor on the rear platen will drive a mold-adjusting mechanism, and a servo-motor mounted on the platen is also operated so as to complete the mold adjustment quickly and automatically.