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Mold clamping system

A technology of mold clamping device and mold clamping mechanism, which is applied in the field of mold clamping device, can solve problems such as rotational vibration, unretained ends, heavy burden on nut parts, etc., and achieve the effect of stable maintenance

Inactive Publication Date: 2008-12-17
MEIKI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the mold opening and closing mechanism of Patent Document 2, although the drive shaft (screw portion) is inserted into the nut member of the connecting plate, the end portion is not held.
Therefore, the drive shaft (screw part) is likely to cause rotational vibration, and the load on the connecting part of the nut member, the drive shaft and the servo motor is also heavy.

Method used

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  • Mold clamping system
  • Mold clamping system
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Embodiment Construction

[0031] Refer to Figure 1~ Figure 4 The mold clamping device of the present invention will be described. FIG. 1 is a front view of a mold clamping device according to this embodiment. figure 2 It is the figure which looked at the movable plate from the arrow A direction in FIG. 1. image 3 It is an enlarged cross-sectional view of the bearing part of the ball screw in the pressure receiving plate, showing the state other than the mold clamping state. Figure 4 It is an enlarged cross-sectional view of the bearing part of the ball screw in the pressure receiving plate, showing the state at the time of mold clamping.

[0032] As shown in FIG. 1 , a mold clamping device 11 according to the present embodiment is used for mold clamping of an injection molding machine 12 and is arranged on a base plate 13 together with an injection device 14 . The mold clamping device 11 is composed of a fixed platen 16 as a first plate, a pressure receiving platen 20 as a second plate, and a mov...

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Abstract

The aim of the invention is to provide a mold closing device capable of stably maintaining a ball screw of a mold opening and closing mechanism or stably moving a movable plate during opening and closing the mold. In the mold closing device (11), the mold opening and closing mechanism (28) is disposed independently to a mold closing mechanism (23) which comprises: a motor (29) for arbitrarily driving the ball screw (32) or a ball screw nut (34) to rotate; the ball screw (32) incapable of axially moving relatively to a fist plate (16); the ball screw nut (34) capable of freely moving relatively to the ball screw (32); the movable plate (18) for receiving the ball screw nut (34); and a bearing part (33) disposed on a second plate (20) for enabling the end part (32a) or the part adjacent to the end part of the ball screw (32) to freely move along the axial direction.

Description

technical field [0001] The present invention relates to a mold clamping device used in injection molding or press equipment, and more particularly to a mold clamping device in which a mold opening and closing mechanism including a ball screw, a ball screw nut, and an electric motor is arranged independently of the mold clamping mechanism . Background technique [0002] As a mold clamping device in which a mold opening and closing mechanism including a ball screw, a ball screw nut, and a motor is arranged independently of the mold clamping mechanism, the mold clamping devices described in Patent Document 1 and Patent Document 2 are known. In the die opening and closing mechanism of Patent Document 1, the ball screw is fixedly arranged on the base plate, the ball screw nut is mounted on the movable die plate, and the ball screw nut and the movable die plate are moved along Die opening and closing direction movement. However, in Patent Document 1, the ball screw nut can only ...

Claims

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Application Information

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IPC IPC(8): B29C33/26
Inventor 神野镇绪塚本淳
Owner MEIKI