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AssigneeKrauss-Maffei Aktiengesellschaft
InventorWalter Wohlrab
Estimating the term…
A mold closing device for an injection molding machine has four tension members (17, 19) which interconnect the fixed mold closing plate (3) and the support plate (5) of the closing drive (7) in a tension-resistant manner are not formed as straight rods but have a L-shaped configuration, with each tension member (17, 19) being connected at an upper connection point (21, 25) to one plate (5, 3) and at a lower connection point (23, 27) to another pate (3, 5). The upper edge (33) of the tension members (17, 19) is positioned at a lower level than the closing pressure axis (11) in order to ensure a free access to the space between the mold clamping plates. The tension members (17, 19) are of exactly same shape and dimension so as to extend by the same amount when being subject to the closing pressure in order to maintain parallel disposition of the fixed clamping plate (3) and the support plate (5).
A mold closing device for a plastics molding machine, comprising a machine frame (1), two fixed plates (3, 5) supported by the machine frame (1) and facing each other in parallel relationship at a distance therebetween, at least one moveable mold clamping plate (13) moveably guided in the frame (1), at least one closing drive (7) supported on one of the fixed plates (5) and capable of applying a closing force to the moveable mold clamping plate (13) wherein the force is directed parallel to a closing force axis (11) in the direction of the other fixed plate (3), and four tension members (17, 19) having identical shapes and dimensions and rigidly interconnecting the two fixed plates (3, 5) and absorbing a reaction force exerted by the closing drive on the two fixed plates, wherein the fixed plates (3, 5) are connected to the tension members (17, 19) at two upper attack points (21, 25) and two lower attack points (23, 29) which are located above and below, respectively, of the horizontal plane extending through the closing force axis (11), characterized in that each tension member (17, 19) is interconnected with one of the fixed plates (3, 5) at an upper attack point (21, 25) and with the other fixed plate (5, 3) at a lower attack point (23, 29).
Dependencies are inferred from the claim text.