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Novel hydraulic expansion device

A tensioner and tensioning technology, applied in the field of new hydraulic tensioners, can solve the problems of reducing the strength of the tie rod, complex control mechanism, tooth wear, etc., to improve production efficiency, reduce the cost of the whole machine, and increase the area of ​​tensile stress big effect

Inactive Publication Date: 2013-05-08
叶廷璧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before the engagement device with ring teeth and the clamping rod are engaged, the teeth must be aligned, which not only takes time to align the teeth, but also requires a complex control mechanism to achieve accurate alignment. Repeated engagement will cause the engagement device to lock and lock. The mechanical wear of the teeth on the mold tie rod, the teeth on the mold clamping tie rod will reduce the strength of the tie rod

Method used

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  • Novel hydraulic expansion device
  • Novel hydraulic expansion device

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Embodiment Construction

[0011] like figure 1 , figure 2 As shown, a new type of hydraulic tensioner, it includes cylinder body (1), cylinder piston body (2), expansion inclined block (3), clamping rod (4), in the cylinder body (1) One side of the cavity is provided with an inner cone surface structure, and the expansion slanting block (3) has an outer cone surface structure and can cooperate with the inner cone surface structure of the oil cylinder body (1), and the oil cylinder piston body (2) Installed on the other side of the inner cavity of the oil cylinder body (1) and can move back and forth in the oil cylinder body (1), the expansion inclined block (3) and the oil cylinder piston body (2) are provided with a locking connection, through This snap-in connection enables the cylinder piston body (2) to drive the expansion slant block (3) to move back and forth in the oil cylinder body (1). There is a space for the expansion slanting block (3) to move in the radial direction of the oil cylinder ...

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Abstract

The invention discloses a novel hydraulic expansion device which comprises an oil cylinder body, an oil cylinder piston body, an expansion inclined block and a mold locking pull rod. According to a conical surface theory, by hydraulic thrust, the expansion inclined block expands to be more and more tight in the matching conical surface, and holding force is produced by elastic deformation between an inner arc surface of the expansion inclined block and an outer arc surface of a mold locking pull rod, so that tooth-free holding is realized, and the mold locking pull rod is locked.

Description

Technical field [0001] The invention relates to a novel hydraulic tensioner in the hydraulic clamping part of injection molding machinery and die-casting molding machinery. Background technique [0002] The traditional hydraulic mold clamping mechanism that requires the locking device to first embrace and hold the clamping rod tightly can realize high-pressure mold clamping. The alveolar embraces and locks the tooth and the alveolar, so that the engaging device and the clamping rod reach a locked state. Before the engagement device with ring teeth and the clamping rod are engaged, the teeth must be aligned, which not only takes time to align the teeth, but also requires a complex control mechanism to achieve accurate alignment. Repeated engagement will cause the engagement device to lock and lock. The mechanical wear of the teeth on the mold tie rod, and the turning teeth on the mold clamping tie rod will reduce the strength of the tie rod. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/68B22D17/26
Inventor 叶廷璧
Owner 叶廷璧