Abstract: An angled-outward toggle clamping type vertical injection molding machine is provided, in which a stationary platen is provided on a frame and a toggle mechanism is provided below the stationary platen. A coupling seat pivotally connected with the toggle arms of the toggle mechanism is fixed with tie bars which extend over above the stationary platen to assemble with the movable platen. An upper die and a lower die are respectively assembled to the movable platen and the stationary platen. When the toggle mechanism drives to open or clamp the dies, the clamping force of the dies can be increased and the action force of the toggle arms in their centered position is dispersed at two sides of the stationary platen so as to protect the stationary platen from deforming or damaging.

Abstract: A double color injection machine with a shaft and a disc is revealed. The double color injection machine includes a main body with a shaft and a disc. The disc is arranged with a slotted hole while the main body is disposed with an axial hole for being assembled with a shaft sleeve. The shaft sleeve is inserted through the axial hole to be mounted to the slotted hole of the disc. A first bearing is mounted in the slotted hole and is corresponding to the shaft sleeve. A servo motor is used to drive the shaft to rotate. Thereby by the shaft sleeve on the shaft corresponding to the first bearing of the disc, the shaft is not rotated with the rotation of the disc. When the servomotor drives the shaft to rotate, the disc is not rotated. At the same time, fast and precise positioning is attained.

Abstract: A double color injection machine with a shaft and a disc is revealed. The double color injection machine includes a main body with a shaft and a disc. The disc is arranged with a slotted hole while the main body is disposed with an axial hole for being assembled with a shaft sleeve. The shaft sleeve is inserted through the axial hole to be mounted to the slotted hole of the disc. A first bearing is mounted in the slotted hole and is corresponding to the shaft sleeve. A servo motor is used to drive the shaft to rotate. Thereby by the shaft sleeve on the shaft corresponding to the first bearing of the disc, the shaft is not rotated with the rotation of the disc. When the servomotor drives the shaft to rotate, the disc is not rotated. At the same time, fast and precise positioning is attained.

Abstract: An injection drive apparatus for injection molding machines is revealed. Liquid material is fed into a mold smoothly by a material feeding screw of a material feeding mechanism. Then a reaction force is generated to push the material feeding screw when the material feeding hole is nearly full of the material. Thus the material feeding screw and the slide mechanism assembled therewith are pushed to move backward. Later the injection mechanism is driven by the slide mechanism to move and act on the drive screw. Thus the slide mechanism threaded with the drive screw is driven to push the material feeding screw moving forward and squeezing the material for injection molding. Therefore, the load of the motor is reduced dramatically and the yield rate of the products produced by injection molding is increased due to the two-stage action-feeding of the material and squeezing of the material for injection.

Abstract: A molding machine includes a bed, a stationary and a moving mold holding plates, an adjustment plate, two tie bars, and a mechanism for driving the moving mold holding plate; both the mold holding plates are arranged on the bed for holding female and male parts of a mold respectively; the adjustment plate is positioned on the bed; the moving mold holding plate is connected to the tie bars so as to be moved along the tie bars when the driving mechanism is actuated; the tie bars pass through all of the plates in such a position as to intersect a diagonal line of each of the plates; to install the mold, male and female parts of the mold can be passed through space next to adjacent vertical and horizontal sides of the holding plates, which don't have a tie bar intervening between them to interfere with installation.

Abstract: An injection molding machine includes a threaded rod, a shaft coupling, and a stopping slab; the shaft coupling is connected at a first end to an oil hydraulic motor; the threaded rod is inserted in an axial hole in the second end of the shaft coupling; the shaft coupling has a hollow detainment portion adjacent to the axial hole; the stopping slab is secured on the second end of the shaft coupling, and has a receiving hole, and a groove adjacent to the receiving hole; the groove is faced with only a portion of the hollow detainment portion, and in turn an opening of the hollow detainment portion is partly covered and blocked by the stopping slab; the threaded rod has a wedging protrusion thereon, which is loosely confined in the detainment portion; therefore, the wedging protrusion can be relocated between blocked and unblocked sections of the hollow detainment portion.

Abstract: A mold closing device of a molding machine includes a stationary closing plate, a stationary mold-holder plate, columns secured to the stationary closing plate and the stationary mold-holder plate, a movable mold-holder plate between the stationary mold-holder plate and the closing plate, a control ring next to the movable mold-holder plate, a toggle mechanism positioned between and connected to the closing plate and the movable mold-holder plate, hydraulic cylinders, and linear sliding rail mechanisms; the hydraulic cylinders are fitted to the control ring for the control ring to make the movable mold-holder plate carry out mold closing/opening operation; the linear sliding rail mechanisms bear the weight of the control ring and the movable mold-holder plate with the movable mold-holder plat and the control ring being off the columns; the linear sliding rail mechanisms will guide the control ring and the movable mold-holder plate in operation.

Abstract: A toggle mechanism of an injection molding machine consists of upper and lower toggle assemblies, which are pivoted to a fixed tail support at a first end, and a movable mold support of an injection molding machine at a second end; each of the toggle assemblies has two toggles pivoted together, each of which has pivotal holes on two ends; pivotal rods are passed through corresponding pivotal holes of the toggles to pivot the toggles together; pivotal rods are used to pivot the toggle assemblies to the fixed tail support and the movable mold support; each pivotal rod has oil holes in radial and axial directions; the oil holes communicate with the pivotal holes of the toggles, and each toggle has an internal oil passage communicating with its pivotal holes; lubricating oil will circulate in the toggle mechanism after conduits and filtering barrels are connected to the pivotal rods.

Abstract: A toggle mechanism of an injection molding machine consists of upper and lower toggle assemblies, which are pivoted to a fixed tail support at a first end, and a movable mold support of an injection molding machine at a second end; each of the toggle assemblies has two toggles pivoted together, each of which has pivotal holes on two ends; pivotal rods are passed through corresponding pivotal holes of the toggles to pivot the toggles together; pivotal rods are used to pivot the toggle assemblies to the fixed tail support and the movable mold support; each pivotal rod has oil holes in radial and axial directions; the oil holes communicate with the pivotal holes of the toggles, and each toggle has an internal oil passage communicating with its pivotal holes; lubricating oil will circulate in the toggle mechanism after conduits and filtering barrels are connected to the pivotal rods.

Abstract: A device includes a sliding base, supporting posts, and hydraulic oil; the sliding base has cavities, an oil passage communicating with the cavities, and oil seals secured around respective cavities, and it is movable along a guide rail secured on a bed of an injection molding machine; the supporting posts each have a room on a lower end, and are inserted in respective cavities such that the rooms communicate with the cavities; the posts touch and prop a movable wall of the molding machine at upper ends, which wall is supported by and movable along guide rods, and has bushings around the guide rods; the hydraulic oil is injected into the sliding base and the posts until the axes of each bushing and the corresponding guide rod are aligned; thus, alignment of the axes of each bushing and the corresponding guide rod will be maintained when the movable wall is moving.

Abstract: An adjusting seat of an injection molding machine has a split-flow hydraulic pump secured thereon; the split-flow hydraulic pump is equipped with several oil input/output conduit sets; several hydraulic motors are secured on the adjusting seat and connected to respective ones of the oil input/output conduit sets of the split-flow hydraulic pump; each of the hydraulic motors has a toothed disk on an output portion thereof; the injection molding machine further has several gears, which are positioned around tie rods of the molding machine, and engage the toothed disks respectively; each of the toothed disks has a sub gear joined thereto while a chain is positioned over and engaged with the sub gears.

Abstract: An adjusting seat of an injection molding machine has a split-flow hydraulic pump secured thereon; the split-flow hydraulic pump is equipped with several oil input/output conduit sets; several hydraulic motors are secured on the adjusting seat and connected to respective ones of the oil input/output conduit sets of the split-flow hydraulic pump; each of the hydraulic motors has a toothed disk on an output portion thereof; the injection molding machine further has several gears, which are positioned around tie rods of the molding machine, and engage the toothed disks respectively; each of the toothed disks has a sub gear joined thereto while a chain is positioned over and engaged with the sub gears.

Abstract: A device includes a sliding base, supporting posts, and hydraulic oil; the sliding base has cavities, an oil passage communicating with the cavities, and oil seals secured around respective cavities, and it is movable along a guide rail secured on a bed of an injection molding machine; the supporting posts each have a room on a lower end, and are inserted in respective cavities such that the rooms communicate with the cavities; the posts touch and prop a movable wall of the molding machine at upper ends, which wall is supported by and movable along guide rods, and has bushings around the guide rods; the hydraulic oil is injected into the sliding base and the posts until the axes of each bushing and the corresponding guide rod are aligned; thus, alignment of the axes of each bushing and the corresponding guide rod will be maintained when the movable wall is moving.

Abstract: A control mechanism includes two hydraulic cylinders, a valve connected to the cylinders, and an actuating unit for the valve; racks are joined to power output rods of the cylinders, facing each other, and engaging a gear secured on a rotary disk; the valve includes a body, and a rod made to stick out from the body at outward end by a spring; the rod can reduce an oil passage of the body after it is displaced further into the body, and the rod can block the oil passage substantially at an end of its displacement further into the body; the actuating unit is movable with one of the power rod, and has two sloping boards thereon such that the rod will be displaced further into the body when the actuating unit moves with the power rod, and when the sloping boards slide over the outward end of the rod of the valve.

Abstract: A toggle joint of an injection molding machine includes several spaced stationary arm members, a movable arm member, a pivotal rod, and bushings fitted in the movable arm member; the pivotal rod has oil passages therein, and it is connected to the stationary arm members and passed through the bushings such that the movable arm member pivots on the pivotal rod; each of the bushings has oil passages on an inner side, and two annular grooves on the inner side, which are on two sides of the oil passages; leak-prevention rings are respectively fitted on the annular grooves of the bushings for preventing leakage of lubricating oil when the oil is supplied between the bushings and the pivotal rod from the pivotal rod.

Abstract: A control mechanism includes two hydraulic cylinders, a valve connected to the cylinders, and an actuating unit for the valve; racks are joined to power output rods of the cylinders, facing each other, and engaging a gear secured on a rotary disk; the valve includes a body, and a rod made to stick out from the body at outward end by a spring; the rod can reduce an oil passage of the body after it is displaced further into the body, and the rod can block the oil passage substantially at an end of its displacement further into the body; the actuating unit is movable with one of the power rod, and has two sloping boards thereon such that the rod will be displaced further into the body when the actuating unit moves with the power rod, and when the sloping boards slide over the outward end of the rod of the valve.

Abstract: An injection molding machine includes a stationary wall for a first mold part to be secured thereto, a movable wall for a second mold part to be secured thereto, and oil cylinders for displacing the movable wall relative to the stationary wall with; the oil cylinders are secured to one side of the stationary wall at tube portions with output rods thereof being projected from the other side of the stationary wall and connected to the movable wall to replace conventional guiding rods; each oil cylinder has a piston, and a subsidiary rod having substantially the same diameter as the output rods; each piston has first and second sides; the output rods are connected to the first sides of the pistons; the subsidiary rods are connected to the second sides of the pistons and can pass through caps of the cylinder tube portions; thus, both sides of each piston have the same area.

Abstract: A method of controlling an ejection molding process of an ejection molding machine includes the action of setting an automatic process, which is done right after the action of setting function/time, and by means of which those motions are set that are to be performed between completion of the mold-opening action and completion of the mold-closing action by means of choosing among prepared options provided for setting each motion according to the nature of the mold used on the injection molding machine as well as the form of the products to be made with the machine and the mold.

Abstract: A mold holder of an injection molding machine includes a base, several clamping blocks, and nuts. The base has cylindrical channels extending inwards from a lateral edge thereof, and trenches formed on an upper side; the elongated trenches are above, and in communication with, respective cylindrical channels. Each of the nuts has a cylindrical shape and a screw hole on a curved side thereof; the cylindrical nuts are fitted in the cylindrical channels, and bolts are tightly connected to other common nuts, the clamping blocks, and the cylindrical nuts so that a mold can be held on the base with the clamping blocks being pressed against it.

Abstract: A mold locking device for a molding machine has a toggle assembly, and a transmission member. The toggle assembly has first toggle arms pivoted to a bearing disc of the molding machine, connecting arms pivoted to a movable mold base, second arms pivoted to both the first arms and the connecting arms, and has third arms pivoted to both the second arms and a co-moving disc movable between the bearing disc and the movable mold base. The transmission member has a power source, a connecting member and an elongated screw. The connecting member connects the power source and a nut turnably fitted on the co-moving disc; the screw is passed through the nut for permitting the nut to turn relative to, and move along, the screw. The screw is further connected to the movable mold base such that the movable mold base can be moved between a mold opening position and a closing position by the toggle assembly and the power source.