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Clamping unit

A technology of mold clamping and hydraulic unit, which is applied in fluid pressure actuators, servo motors, mechanical equipment, etc., and can solve problems such as high equipment technology and adjustment technology costs, and insufficient

Active Publication Date: 2016-06-01
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] These requirements can only be met insufficiently with conventional injection molding machines or require particularly high equipment and adjustment engineering expenditures

Method used

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Experimental program
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Embodiment Construction

[0028] attached figure 1 A circuit diagram of a hydraulic pressure plate 1 of an injection molding machine with a two-platen-clamping unit with a hybrid drive, which does not have to be the hydraulic drive of the machine, is shown in a strongly simplified manner. This clamping unit has a movable template 2 and a fixed template 4, and these templates are usually connected to each other by four tie rods 6, and the attached figure 1 Only a schematic diagram of one of the tie rods is drawn in . A fast driving device makes the movable template 2 move relative to the fixed template 4 fixed on the frame, which can be realized by using electric or hydraulic or other fast driving devices, which are not shown in the accompanying drawings. The fast drive unit. The pressing plate 1 is in a static state during the process of locking the mould. Depending on the configuration, the tie rods 6 can move together with the movable platen 2 or can be fastened to the fixed platen 4 - for the pri...

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PUM

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Abstract

Closing unit for an injection molding-die casting, a blow molding machine or a press, preferably for a two-plate machine, comprises a fixed tool clamping plate (4), a movable tool clamping plate (2), which are movable relative to one another using an electric or hydraulic drive for opening and closing a tool, and at least one hydraulically operated holding cylinder (8) for applying a closing force. A pressure medium is displaceable via a hydraulic unit (20) in both the directions between a pressure chamber (18) and the holding cylinder. Closing unit for an injection molding-die casting, a blow molding machine or a press, preferably for a two-plate machine, comprises a fixed tool clamping plate (4), a movable tool clamping plate (2), which are movable relative to one another using an electric or hydraulic drive for opening and closing a tool, and at least one hydraulically operated holding cylinder (8) for applying a closing force. A pressure medium is displaceable via a hydraulic unit (20) in both the directions between a pressure chamber (18) acting in the closing direction and the holding cylinder acting in the opening direction.

Description

technical field [0001] The invention relates to a mold clamping unit according to the preamble of claim 1 . Background technique [0002] Such clamping units can be used in die-casting machines, especially in injection molding machines, presses, rubber machines or similar machines. WO 96 / 16786 A1 discloses a fully hydraulic injection molding machine with a double-platen clamping unit, in which a certain platen and a moving platen are provided, on which a mold half is respectively tensioned. Fast mold opening and closing movements are carried out electrically or by means of fast hydraulic cylinders, in this known solution a very high locking is applied by means of a pressure plate consisting of one or more hydraulic cylinders with relatively large cross-sections force or closing force, where the quick cylinder is locked when force is applied by the platen. This fully hydraulic machine with a two-platen clamping unit is especially suitable for injection molding machines with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/67F15B11/08
CPCB29C45/68B22D17/266
Inventor E·黑费勒K·米勒H·弗斯特林U·多恩D-W·赫罗尔德
Owner ROBERT BOSCH GMBH