An injection molding method that includes: (a) fitting an injection molding machine with an injection mold defining one or more molding cavities, with at least one mold plate provided with one or more channels for circulation of a tempering medium, (b) providing a feed of plastic material, (c) heating the molding cavities by circulating through the channels a first tempering medium, (d) injecting plastic material into the closed heated mold to fill the molding cavities, (e) cooling the molding cavities of the filled closed injection mold until at least partly solidifying the molded plastic parts by circulating through the channels a second tempering medium, (f) opening the injection mold by parting the injector plate from the ejector plate, (g) ejecting the at least partly solidified molded plastic parts by actuation of ejector pins of the ejector plate, and (h) repeating the cycle of steps (c)-(g).

A display unit displays a display screen including information on injection molding, and the display screen displays an actual result information display field that displays actual result information on power consumption measured at a time of performing the injection molding and a comparative information display field that displays comparative information on power consumption of the injection molding to be compared with the actual result information on the power consumption in the same display form as a display form of the actual result information display field together.

The three-dimensional geometry of an attachment is measured before work is started. A maximum dimension of a take-out head 60 in the X direction, a maximum dimension of the take-out head 60 in the Y direction, and a maximum dimension of the take-out head 60 in the Z direction are measured on the basis of an image of the take-out head 60 captured by at least imaging devices C11 and C12 before the take-out head 60 starts work with the take-out head 60 being mounted to an elevating frame 59B of an apparatus 5 for taking out a molded product, as an orthogonal three-axis robot.

A method of estimating a normal vector to an attachment mounted to an approach frame of an apparatus for taking out a molded product and a normal vector to a die mounted to a molding machine is provided. A normal vector to a take-out head is estimated through computation using a coordinate/depth determination section and a normal vector computation section on the basis of depth data or coordinate data on three mounting members. Three or more extending portions are specified from the image, the extending portions being each a part of a fixed die or a movable die or a part of a surrounding component and extending in a direction that coincides with the open direction for the dies. A normal vector to the die is estimated through computation on the basis of the depth data or coordinate data on the specified extending portions.

An air ejector of a resin molding device includes air passages, air outlets through which air is injected, movable valves biased by bias members to close the air outlets, accommodation spaces in which the movable valves are movably contained, an air supply path through which air is supplied from an air supply source, and a pressure sensor to detect air pressure. After completing the mold removal, the air is supplied via the air supply path to the air passages at an air pressure smaller than the bias force of the bias members, and the air pressure is detected by the pressure sensor.

Non-time dependent calculated variables based on measured strain are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure strain at the mold cavity or at another location within the injection molding system, and then calculate at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced.

Non-time dependent measured variables are used to effectively determine an optimal hold profile for an expanding crosslinking polymer part in a mold cavity. A system and/or approach may first inject molten expanding crosslinking polymer into a mold cavity, then measure at least one non-time dependent variable during an injection molding cycle. Next, the system and/or method commences a hold profile for the part, and upon completing the hold profile, the part is ejected from the mold cavity, whereupon a cure profile is commenced.

A remote control system to remotely control a take-out robot of an injection molding machine on a production site through network includes an injection molding machine to produce and convey injection molded products through the take-out robot. A remote controller transmits and receives the operation data of the take-out robot and the information data on the injection molding to and from the injection molding machine through the wireless internet. The remote controller remotely controls the injection molding machine based on the utilized operation data and information data. A control pendent connected to the injection molding machine remotely controls the take-out robot, performs three-dimensional graphic simulation for the previous operations before operating the take-out robot and for loading motions of the injection molded products, and stores and outputs the three-dimensional graphic images of the injection molded products, based on a previously stored remote control access program.

The invention relates to a device for handling and/or transporting workpieces (5), in particular for removal of injection-molded items from an injection-molding machine, wherein a handling robot (4) having a programmable control and regulating unit (10) is provided that comprises a gripper (6) having at least one suction nozzle (7) for grasping of the workpiece (5) or fixating it by suction. In the gripper (6) of the handling robot (4) a distance-measuring device (8) for detection of the distance (a.sub.1+a.sub.2) from the gripper (6) to a reference point or a reference surface (9), for example to the mold tool half (2), which is preferably movable, with the workpiece (5), is provided. The measured value of the distance-measuring device (8) is fed into the control and regulation unit (10). The distance-measuring device (8) can be a light-transit time measuring device, in particular a time-of-flight (TOF) sensor.

An acceleration distance for acceleration at a set acceleration rate, required for an ejection start position passing speed in an ejection start position, is obtained, and a position behind the ejection start position by the acceleration distance is set as an advance start position of an ejector. Thus, an ejector plate can start to move at an optimal speed.