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Electric split nut opening/closing apparatus for mould equipment

A closed device, separate technology, applied in the direction of transmission, mechanical equipment, belt/chain/gear, etc., can solve problems such as poor response and uncertain motion

Inactive Publication Date: 2002-10-16
U MHI PLATECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this type of opening / closing device has the advantage of simple structure due to the two split nuts being opened and closed by one cylinder 53, but due to the use of the cylinder and the connecting rod 53 and half of the cylinder The movement of the 58 is less certain and has the disadvantage of poor response

Method used

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  • Electric split nut opening/closing apparatus for mould equipment
  • Electric split nut opening/closing apparatus for mould equipment
  • Electric split nut opening/closing apparatus for mould equipment

Examples

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no. 1 example

[0043] will refer to figure 1 A first embodiment of the electric split nut opening / closing device according to the present invention is described up to FIG. 4 .

[0044] figure 1 is a partially cutaway side view of an injection molding machine clamping apparatus on which such an electric split nut opening / closing device is mounted, figure 2 yes figure 1 A front view of the device, where the device is viewed from the left, image 3 is a perspective view of the guide box, and Figures 4(a), 4(a1), 4(a2), 4(b) and 4(b1) illustrate the construction and operational details of the electric split nut opening / closing device view.

[0045] exist figure 1 with figure 2 , reference numeral 60 designates the base of the mold clamping device. A fixed platen 61 is fixed at one end of the base body 60 .

[0046] The movable platen 62 is slidably disposed on the base 60 while facing the fixed platen 61 . The fixed mold 63 is attached to the fixed platen 61 , and the movable mold...

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Abstract

The present invention discloses an electric split nut opening / closing device, wherein a motor is driven and the half moves linearly while the movement is clearly restricted, whereby two left and right tie rods can be opened and closed simultaneously by one device . In this electric split nut opening / closing device, the tip threaded portion of the tie rod whose one end is fixed to either one of the fixed platen and the movable platen and whose other end protrudes through the other platen is connected to the other end. Split nuts on the platen engage to connect the fixed platen to the movable platen, whereby a clamping force is generated between the platens by imparting a pulling force to the tie rods, a pair of split nuts The left half and the right half are slidably supported to fix the tie rod therebetween, and the left half and the right half of the two sets of split nuts are simultaneously approached and separated from each other by a common driving device, thereby fixing the tie rod.

Description

technical field [0001] The present invention relates to a split nut opening / closing device for tie bars, which is used in mold clamping apparatuses of injection molding machines, presses and the like. More particularly, the present invention relates to an electric split nut opening / closing device in mold clamping equipment, which has a simple structure and quicker response. Background technique [0002] Conventionally, in clamping equipment for injection molding machines, the movable platen is attached to the movable platen by using a small-diameter, large-stroke cylinder to bring it close to a fixed platen that is generally fixed to the base of the equipment. The molds on the platen and the fixed platen are in contact with each other, by which the molds are closed. At the same time, a two-piece nut (split nut) engages and connects to the top threaded portion of each of the four tie rods secured to one platen and protruding from the other platen, A cy...

Claims

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Application Information

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IPC IPC(8): F16H21/22B29C45/66B29C45/67B29C45/68F16H25/20
CPCB29C45/6707B29C45/68
Inventor 藤田三郎
Owner U MHI PLATECH CO LTD
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