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A mold clamping device of a two-platen direct pressure injection molding machine

A mold clamping device and direct pressure technology, applied in the field of mold clamping structure, can solve problems such as large difference in pressure boost and pressure release history, increase in piston rod fracture accidents, unstable movement, etc., and achieve machine outer covering parts reduction and weight reduction Lightweight, high precision clamping effect

Active Publication Date: 2016-03-30
GUANGDONG BLOOMACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the different structures of the three oil cylinders and the other oil cylinder, there is a big difference in the pressure boost and pressure relief history during the mold opening and closing process, and there are disadvantages of uneven force and unstable action, which increases the risk of piston rod fracture accidents

Method used

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  • A mold clamping device of a two-platen direct pressure injection molding machine
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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 , figure 2 As shown, a mold clamping device 100 of a two-platen direct pressure injection molding machine of the present invention includes a movable platen 101 , a fixed platen 102 , a mold moving cylinder 103 , a first clamping cylinder 104 and a second clamping cylinder 105 .

[0026] There are two mold-moving cylinders 103 , which are respectively arranged on the periphery of the fixed template 102 and are symmetrical to the center of the fixed template 102 . The mold-moving cylinders 103 are connected with the movable template 101 and drive the movable template 101 .

[0027]There are two first mold clamping cylinders 104, which are symmetrically arranged at two opposite corners of the fixed platen 102, respectively. The first clamping cylinder 104 is provided with a first piston 106 and a first piston ...

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Abstract

The invention relates to the technical field of mould closing structures. The technical problem to be solved is to provide a mould closing apparatus of a two-plate vertical compression type injection molding machine, which is simple and reasonable in structure, is improved in strength and rigidity, uniform in stress, stable and reliable in use, and wider in use adaptability. The mould closing apparatus comprises a movable mould plate and a fixed mould plate, two mould moving oil cylinders, two first mould locking oil cylinders and two second mould locking oil cylinders, wherein the four mould locking oil cylinders adopt single-piston rod structures and are symmetrically arranged relative to the fixed mould plate, and the two first mould locking oil cylinders are internal-circulation oil cylinders. The inside of each mould locking oil cylinder is divided into a rodless cavity and a rod cavity by a piston, the four rod cavities are communicated through connecting pipes, and diameters of the piston rods of the mould locking oil cylinders are 0.52-0.72 times of the diameters of the pistons. The sum of the stroke volumes of the four rod cavities can be equal to the sum of the stroke volumes of the two rodless cavities, the mould closing apparatus is capable of realizing actual internal circulation, thereby being low in energy consumption and short in pressing rising time, having multiple use modes during actual using, and being suitable for multiple mould closing machines.

Description

technical field [0001] The invention relates to the technical field of mold clamping structures, and more specifically, relates to a mold clamping device of a two-platen direct pressure injection molding machine with wide adaptability. Background technique [0002] In the prior art, the internal circulation two-platen direct pressure injection molding machine has the advantages of excellent clamping performance, high efficiency, and energy saving. Its special clamping structure and excellent motion characteristics are especially suitable for injection molding of precision special products, which fully embodies the Injection molding machines are developing towards the theme of precision, energy saving and high efficiency. The working process of the mold clamping device of the inner circulation two-platen direct pressure injection molding machine is as follows: when moving the mold, the mold moving cylinder drives the movable platen to move to the fixed platen, and at the same...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/67B22D17/26
CPCB29C45/67
Inventor 李建军王建
Owner GUANGDONG BLOOMACHINE
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