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Plasticizing unit and injection molding machine

A technology of injection molding machine and plasticizing screw, which is applied in the field of injection molding machines, can solve impossible problems, and achieve the effects of reducing inertia, high transmission ratio, and reducing mass

Active Publication Date: 2020-07-28
ENGEL AUSTRIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these non-homogeneous plasticizing units have the disadvantage that, without a gear mechanism, it is not possible to transmit the rotational movement of the shaft of the motor of the first drive relative to the rotational movement of the plasticizing screw.

Method used

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  • Plasticizing unit and injection molding machine
  • Plasticizing unit and injection molding machine
  • Plasticizing unit and injection molding machine

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Embodiment Construction

[0021] figure 1 Shows a schematic sectional view of a plasticizing unit 1 with a plasticizing cylinder 2 (not shown in this figure for the sake of clarity), along which axis A of the plasticizing cylinder 2 a single plasticizing screw 3 can be The plasticizing cylinder 2 is mounted displaceably and rotatably about the axis A of the plasticizing cylinder 2 by means of a first drive. In order to rotate the plasticizing screw 3 around the axis A of the plasticizing cylinder 2, a first drive device is provided, which has a shaft 5 drivable by a motor 4, the rotational movement of which can be converted into a motion of the plasticizing screw 3 via a transmission mechanism. Turning motion. In this exemplary embodiment, the gear is designed in the form of a bevel spur gear.

[0022] According to the invention, the shaft 5 of the first drive forms an acute angle α (here approximately 30°) with the axis A of the plasticizing cylinder 2 . The central axis of the shaft 5 and the axis...

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Abstract

The invention relates to a plasticizing unit (1) for an injection molding machine, with at least one plasticizing cylinder (2) in which a unique plasticizing screw (3) is displaceable along an axis (A) of the plasticizing cylinder (2) and rotatable about the axis (A) of the plasticizing cylinder by a first drive device (2) is mounted, wherein the first drive device, for rotating the plasticizing screw (3) around the axis (A) of the plasticizing cylinder (2), has a shaft (5) which can be driven by a motor (4); and a transmission mechanism is provided through which a rotary movement of the shaft(5) can be converted into a rotary movement of the plasticizing screw (3), the shaft (5) of the first drive device and the axis (A) of the plasticizing cylinder (2) form an acute angle ([alpha]).

Description

technical field [0001] The invention relates to a plasticizing unit having the features according to the preamble of claim 1 and to an injection molding machine having such a plasticizing unit. Background technique [0002] In plasticizing units of the same type, the space available for the first drive is extremely limited. In order to transmit the rotational movement of the shaft of the motor of the first drive to the plasticizing screw, a transmission mechanism is used in plasticizing units of the same type, which increases the rotational and translational mass to be driven. Non-identical plasticizing units are also known in which the shaft of the motor of the first drive is arranged in direct drive coaxially with the plasticizing screw, which reduces the defines the rotational and translational masses to be driven. However, these non-homogeneous plasticizing units have the disadvantage that, without a transmission, it is not possible to transmit the rotational movement ...

Claims

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Application Information

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IPC IPC(8): B29C45/50
CPCB29C45/5008B29C2045/504B29C2045/5056
Inventor C·巴尔卡F·佩恩科普夫
Owner ENGEL AUSTRIA
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