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Toggle Linkage Closure Unit For An Injection Moulding Machine

A technology of injection molding machines and toggle levers, applied in the field of toggle lever clamping units, can solve problems such as difficulty in execution, and achieve the effect of shortened cycle time and fast driving movement

Active Publication Date: 2018-02-09
KRAUSSMAFFEI HIGHPERFORMANCE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It remains to be ignored that during its movement into the open position of the clamping unit, the main lever folds strongly in the direction of the center axis, so that the actual execution may become difficult

Method used

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  • Toggle Linkage Closure Unit For An Injection Moulding Machine
  • Toggle Linkage Closure Unit For An Injection Moulding Machine
  • Toggle Linkage Closure Unit For An Injection Moulding Machine

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] The next step should be to refer to figure 1 , The first embodiment of the present invention will be described in the case of 2 and 3. exist figure 1 , The toggle clamping unit shown in 2 and 3 is configured as a 5-point toggle clamping unit and includes a machine tool 9 on which a fixed clamping plate 8, a movable clamping plate 6 and a support plate 7 are arranged. The mold halves 16 a and 16 b of the injection mold are fastened to the two clamping plates 6 and 8 . To absorb the closing force, the support plate 7 and the fixed clamping plate 8 and the column 15 are connected to each other. The movable clamping plate 6 is mounted movably on a column 15 or on the machine tool 9 . This is known and therefore needs no further illustration and description. Between the movable clamping plate 6 and the support plate 7 , above and below the central machine longitudinal axis A, respectively, a pair of main rods 1 , 2 and 1 ′, 2 ′ are arranged. Each pair has a first point ...

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PUM

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Abstract

The invention relates to a toggle linkage closure unit for an injection moulding machine, comprising a stationary platen (8), a movable platen (6), a support plate (7) and a toggle linkage (4) arranged between the support plate (7) and the movable platen (6). A cross head (5) that is in operative connection with the toggle linkage (4) is moved by means of an electric drive (10). According to the invention, in addition to the electric drive (10), at least one hydraulic drive having a piston-cylinder system (11) is provided, the piston-cylinder system being in operative connection with the crosshead (5). The length (LZ) of the cylinder (11a) and the length (LS) of the piston rod (11b) are designed and aligned in relation to one another in such a way that the hydraulic drive can follow the travel path (S) of the cross head (5) during the travel of the movable platen (6) between an open position of the closure unit, in which the toggle linkage (4) is folded, and the closed position, in which the toggle linkage (4) is in a predeterminable extended position and closing force is built up.

Description

technical field [0001] The invention relates to a toggle clamping unit for an injection molding machine according to the preamble of claim 1 . Background technique [0002] The toggle clamping unit generally includes a fixed clamping plate, a movable clamping plate and a support plate. A toggle mechanism is arranged between the support plate and the movable clamping plate, which can be actuated by means of a drive. The toggle mechanism consists of a plurality of rods which are hingedly connected to one another and which are connected via hinges to the support plate and the movable clamping plate. In order to be able to manipulate the toggle mechanism between the folded position of the lever and the unfolded position of the lever (also referred to as the extended position or the dead point position of the toggle mechanism), the drive unit is connected with a crosshead or a plate that fulfills a similar function. An operative connection, which is operatively connected on its...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/68B29C45/17B29C45/64
CPCB29C45/681B29C45/683B29C2045/1792B29C2045/648B29C2945/76692B29C45/1744B29C45/5008B29C45/661B29C2045/7673B29C2045/824
Inventor A.安格斯特M.富克斯M.豪扎曼M.豪特勒D.燕妮M.吕蒂A.梅克勒M.迈尔M.诺茨R.施维特
Owner KRAUSSMAFFEI HIGHPERFORMANCE AG