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Krauss-Maffei Kunststofftechnik GmbH Patents
Assignee:
Krauss-Maffei Kunststofftechnik GmbH
Address:
Munchen, DE
No. of patents:
62
Patents:


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Patent Number Title Of Patent Date Issued
7488167 Closing unit for an injection molding machine with stack mold February 10, 2009
A closing unit for an injection molding machine includes first and second platens, of which at least one is movable, and an intermediate plate disposed between the first and second platens. A molding tool is disposed between one of the first and second platens and the intermediate plate.
7484948 Injection molding machine with vertical plasticizing unit February 3, 2009
An injection molding machine includes a clamping unit constructed for support of at least two molding tools to provide at least two different cavities. A first plasticizing unit is provided for charging one of the cavities in one of the molding tools, and a second plasticizing unit is
7445743 Molding tool, and method of making plastic articles November 4, 2008
A mold portion of a molding tool for making plastic articles includes a base body defining a cavity surface and having formed therein at least one heating channel, and at least one cooling channel separated from the heating channel and having a cross section which is smaller than a cross
7445439 Clamping unit with double crank drive November 4, 2008
A clamping unit for an injection molding machine includes a fixed platen, a support platen, and a moving platen which is arranged between the fixed platen and the support platen for back and forth movement. An opening and closing mechanism constructed as crank drive having at least one c
7426843 Roll assembly for a pipe extrusion plant September 23, 2008
A roll assembly and a pipe extrusion plant for producing pipes with a variable diameter, includes an extruder, an adjustable calibration device, and a cooling device, whereby a pipe to be produced is guided at least in part during the production process. In order to be able to provid
7425123 Hydraulic mold clamping unit September 16, 2008
A hydraulic mold clamping unit, in particular for an injection molding machines or a press, includes a fixed lower platen and an upper plated which is moved by an open-close mechanism in a vertical direction. The open-close mechanism includes at least one hydraulic cylinder of a first
7399441 Clamping unit with a platen hydrostatically supported on a frame element July 15, 2008
A clamping unit, particularly for an injection molding machine, includes at least one moving platen which is moveably arranged on a frame element. At least one hydrostatic support is provided in an area between the platen and the frame element for facilitating back and forth displacement
7372220 Extrusion plant with synchronized drive units, and method of synchronization of drive units May 13, 2008
In a method for synchronizing drive units, a target value of the speed of each drive unit of a plurality of drive units speed is computed by determining the product of a maximum speed of the drive unit, a unit-dependent normalized ratio value of the drive unit, and a synchronization
7357630 Calibration device April 15, 2008
A calibration device for calibrating extruded continuous profiles, in particular tubes, includes a housing and a plurality of segment bodies which are received in the housing in a substantially in circular manner, with axially neighboring segment bodies partially overlapping in a cir
7314362 Horizontal injection molding machine with turning device January 1, 2008
A horizontal injection molding machine includes a machine bed defining a longitudinal axis and two mold platens supported on the machine bed for movement in a direction of the longitudinal axis, whereby each of the mold platens carries a half-mold. Further provided is a turning device
7306445 Mold closing device for an injection molding machine December 11, 2007
A mold closing device of an injection molding machine for producing plastic parts made of two or more plastic components includes a central mold carrier element which is arranged between two outer mold mounting plates and has two or four opposing mold mounting areas arranged in pairs
7293975 Calibration device November 13, 2007
A calibration device for calibrating extruded continuous profiles includes successively arranged segment rings comprised of individual segments whose internal surfaces jointly form a calibration opening. Successively axially arranged segments are assembled in the form of a segment block.
7270534 Operating system for an externally operated part of a closing unit September 18, 2007
The invention relates to an operating system for an externally operated part of a closing unit, in particular for a mold carrier of a closing unit. During operation, the entire closing unit (12) moves in a predefined first direction (D) and the externally operated part (18) can be mo
7195724 Method of controlling a compounder-type injection molding machine, and compounder-type injection March 27, 2007
In a method of controlling the feed amount of compounding materials for a compounder-type injection molding machine with a plasticizing unit, an injection unit, receiving plasticized material from the plasticizing unit, and a metering unit for supply of starting material into the pla
7186113 Rotary device for a horizontal injection molding machine March 6, 2007
A rotary device for a horizontal injection molding machine includes a base and a rotary table supported on the base for rotation about a vertical rotation axis upon operation of a drive. The drive includes a shaft extending downwards from the rotary table and projecting through the b
7186111 Hybrid injection unit, and injection molding machine with a hybrid injection unit March 6, 2007
A hybrid injection unit for an injection molding machine includes a plasticizing screw having a shaft and constructed for rotation and axial displacement. Operatively connected to the shaft is a first electric motor for rotating the plasticizing screw, and a second electric motor for
7182504 Drive apparatus for a multi-shaft extruder rotating in a same direction February 27, 2007
A drive apparatus for an extruder with at least two co-rotating extruder screws having driveshafts includes a housing and a drive motor which is received in the housing and including a stator and a rotor. The rotor is operatively connected to driveshafts of the extruder screws and has
7179074 Device for safeguarding an open position of the closing unit of an injection molding machine February 20, 2007
Injection molding machines must be provided with devices which ensure that the mold mounting plates when in open position cannot inadvertently close, wherein the conventional safety devices include a toothed locking bar disposed between two mold mounting plates and are provided with a
7172407 Injection unit for injection molding machines with continuously operating plasticizing unit February 6, 2007
An injection unit for an injection molding machine includes a plasticizing unit in the form of an extruder, a plunger-type injection device, which can be connected to the injection molding machine by an injection nozzle. The plunger-type injection device defines an injection space. The
7160102 Injection unit for injection molding machines with continuously operating plasticizing unit January 9, 2007
An injection unit for injection molding machines includes an extruder as plasticizing unit and a plunger-type injection molding device that can be coupled to the injection molding machine by an injection nozzle. The plunger-type injection molding machine has an injection plunger, wherein
7156650 Device for removing an injection molded substrate from an injection mold January 2, 2007
A device for removing an injection-molded substrate with attached sprue from an injection mold having half-molds, in particular a substrate for optical data carriers, includes a lever that can swing in and out of a position between the half-molds of the injection mold and is constructed
7134869 Rotary device for a horizontal injection molding machine November 14, 2006
A rotary device for a horizontal injection molding machine includes a base plate and a rotary table supported on the base plate for rotation about a vertical rotation axis upon operation of a drive. The drive includes a pivot pin extending downwards from the rotary table and projecting
7118372 Molding tool having a heating and cooling medium October 10, 2006
A mold portion of a molding tool for making plastic articles includes a base body defining a cavity surface and having formed therein at least one heating channel, and at least one cooling channel separated from the heating channel and having a cross section which is smaller than a cross
7118366 Protective device for an injection unit to guard against injury October 10, 2006
A protective device for an injection unit of an injection molding machine includes a protective plate which is disposed at an outlet port of a channel of an injection nozzle. The protective plate is moveable between a shielding position, in which the outlet port is covered, and an openin
7083321 Single screw extruder August 1, 2006
The invention relates to a single screw extruder comprising a barrier screw and a barrel in which the barrier screw is held in a manner that permits to rotate and comprising at least one feed zone longitudinal section and at least one melting zone longitudinal section (23). The extru
7066725 Injection molding machine with control system June 27, 2006
An injection molding machine includes a plurality of input and output units, a plurality of actuators, a plurality of sensors, and at least one computing unit, wherein a functional assignment of the input and output units, actuators and sensors is established via the computing unit and
7048533 Apparatus for making plastic articles having an embossed pattern May 23, 2006
In a method of making plastic articles with embossed pattern, a plastic material is injection-molded in a cavity of a clamping unit of an injection molding machine to form an injection-molded plastic article. A pattern is embossed from a foil strip onto a previously injection-molded
7033163 Backflow prevention device April 25, 2006
A backflow prevention device for an injection molding machine includes a screw tip having a tip end, a central body member connected to the tip end, a thrust ring at a rear end of the body member, and a mounting end for attachment to a plasticizing screw. A locking ring is arranged at a
7029263 Injection molding device with intermediate storage space April 18, 2006
An injection molding device includes a continuously operating extruder and a discontinuously operating injection unit receiving plastic material from the extruder. The extruder has an extruder barrel which includes a plasticizing zone and a discharge zone, whereby the discharge zone is
7018189 Mold closing device for an injection molding machine March 28, 2006
A mold closing device of an injection molding machine for producing plastic parts made of two or more plastic components includes a central mold carrier element which is arranged between two outer mold mounting plates and has two or four opposing mold mounting areas arranged in pairs
7014454 Metering device for an injection molding unit March 21, 2006
A metering device for an injection molding unit includes a base body having an antechamber in fluid communication with a feed channel for introduction of plastic material, and a metering chamber in fluid communication with a injection channel. The antechamber and the metering chamber
7011514 Apparatus for removing and/or placing a workpiece from or in an injection mold of an injection m March 14, 2006
Apparatus for removing and/or placing a workpiece from or into an injection mold of an injection molding machine includes a fixed platen and a moving platen which have attached thereon respective half-molds. A toothed rack is firmly connected to the fixed platen and engages with a dr
6997235 Plasticizing barrel lined on the inside with a coating, and method of making such a plasticizing February 14, 2006
A plasticizing barrel for a plastics processing machine includes a body having a hollow cylindrical configuration and defining an axis; and a coating formed on an inner wall surface of the body and including at least one groove extending in axial direction of the body. The coating, e
6991089 Cooling station for disk-shaped substrates January 31, 2006
A cooling station for data carrier disks, in particular for injection-molded substrates of optically readable data carriers, such as CD, CD-R, DVD, CD single, DVD single and the like, has at least three rotatable cooling spindles which are arranged in spaced-apart parallel relationsh
6971428 Device for vacuum-pressing of DVD substrates December 6, 2005
The invention relates to a device for vacuum-pressing of disk-shaped substrates, in particular DVD substrates into a finished DVD, wherein the device has a vacuum chamber with two substrate holders and an intermediate element that can be displaced inside the vacuum chamber; and wherein t
6957805 Gas charging unit of a polyurethane injection molding assembly October 25, 2005
A gas charging unit for adding gas to a liquid polyurethane component, in particular a filler-laden polyurethane component of a polyurethane injection molding unit, includes a mixing vessel having an inlet opening and receiving a liquid polyurethane component via the inlet opening. A
6926515 Injection molding machine with improved traction transmitting securing mechanism August 9, 2005
An injection molding machine includes a stationary platen, a movable platen constructed for movement relative to the stationary platen, at least one tie bar for tension-proof connection of the fixed and movable platens, and a traction transmitting securing device including a securing ele
6877977 Two-platen closing system for an injection molding machine April 12, 2005
In a two plate closing unit of an injection molding machine the stationary and the movable mold mounting plates are connected by columns, wherein the columns that traverse the fixed mold mounting plate are fixedly connected to a clamping cylinder in which the columns configured at their
6854968 Compounder-type injection molding machine February 15, 2005
In a compounder-type injection molding machine having an extruder for continuously producing a melt and at least one injection device is fluidly connected to the extruder to receive melt, a reservoir is provided which is in fluid communication with the extruder as well as with the inject
6851942 Platen clamping mechanism for an injection-molding machine February 8, 2005
To displace a moving mold mounting plate (3), a threaded spindle drive is inserted between the moving mold mounting plate (3) and a fixed mold mounting plate (16), whereby one end of each threaded spindle is mounted in the fixed mold mounting plate (16) and is configured as a piston (9)
6846170 Injection molding machine with at least one column having a surrounding jacket January 25, 2005
An injection molding machine includes a plasticizing unit and a closing unit which has at least one column which passes through and is moveable relative to a supporting element. A jacket at least partially surrounds the column at formation of an annular space and bears directly against t
6840757 Injection nozzle for mixing heads of reaction casting machines January 11, 2005
An injection nozzle for mixing heads of reaction molding machines is disclosed which comprises a housing in which a adjustment assembly is provided for slidably moving between two adjustable stops, wherein the adjustment assembly is configured as a control sleeve which includes a pre
6830448 Rotary device for a horizontal injection molding machine December 14, 2004
A rotary device (4) for a horizontal injection molding machine for rotating mold portions or molded articles, disposed between the mold mounting plates, about a vertical axis. The invention is further characterized in that the rotary device (40) is supported completely separated from the
6824381 Rotary device for a horizontal injection molding machine November 30, 2004
A rotary device for a horizontal injection molding machine is configured in the form of a module frame which includes a base plate and a turntable rotatably mounted on the base plate. Drives are provided to move the base plate in longitudinal direction and to rotate the turntable. A fixe
6786630 Screw for a plastics processing machine, and method of regenerating a screw September 7, 2004
A screw for a plastics processing machine includes a screw body made of a base material, which is no longer useful as a consequence of wear. A single-ply or multi-ply a buffer layer made of magnetically conductive metallic material is applied onto the crest of the screw body by means of
6763317 Safety feature for an injection molding machine July 13, 2004
In a method of safeguarding an injection molding machine against execution of a faulty operation, a movement state of a moveable component, e.g. a moveable mold mounting plate of an injection molding machine, is monitored as a drive for the component is activated. Upon detection of no mo
6755640 Plastics injection molding machine June 29, 2004
A plastics injection molding machine includes a heatable plasticizing cylinder having an inlet side for incoming plastic material and a machine drive, and an injection mold receiving the plastic material from the plasticizing cylinder for making an injection molded article. Acting be
6739857 Adjustable rotary device for a horizontal injection molding machine May 25, 2004
A rotary device for a horizontal injection molding machine is disposed between a movable mold mounting plate and a fixed mold mounting plate of the injection molding machine and includes a base plate and a turntable, which is supported on the base plate for rotation about a vertical
6705752 Single screw extruder March 16, 2004
The invention relates to a single screw extruder comprising a barrier screw and a barrel in which the barrier screw is held in a manner that permits to rotate and comprising at least one feed zone longitudinal section and at least one melting zone longitudinal section (23). The extruder
6648625 Apparatus for making molded articles of plastic material November 18, 2003
An apparatus for making molded articles of plastic material, in particular molded films of thermoplastic flakes, by using a slush molding process, includes a mold container having at least one interior space for receiving plastic material and a mold wall which can be heated and cooled in
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