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Hydraulic pressurizing mold locking device for split mold

A mold clamping device and flap closing technology, which is applied in the field of metal plastic processing, can solve the problems of affecting product precision and low mold rigidity, and achieve the effect of increasing mold opening space, large mold clamping stiffness, and avoiding impact

Active Publication Date: 2021-08-27
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the low mold rigidity caused by the small clamping force in the prior art, which affects the product precision, and consider the technical problem of reducing production costs, the present invention proposes a hydraulic pressurized mold clamping device for flap-closing molds

Method used

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  • Hydraulic pressurizing mold locking device for split mold
  • Hydraulic pressurizing mold locking device for split mold

Examples

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Embodiment 1

[0033] The specific structure of one of the embodiments of the present invention is described in detail below in conjunction with the accompanying drawings: as figure 1 As shown, this embodiment takes two flap-closing modules to form a flap-closing die as an example:

[0034] A hydraulic pressurized mold clamping device for flap-closing moulds, comprising a frame, a mold-closing mechanism arranged on the frame for driving the flap-closing module for mold-closing, and a booster connected between the mold-closing mechanism and the flap-closing module Locking mechanism; the frame is composed of crossbeam 2 and sidebeam 5 fixedly connected, and the inside of sidebeam 5 is symmetrically provided with two sets of sidebeam shoulders k and pin holes m; the mold clamping mechanism is fixed on the crossbeam 2 The left and right symmetrical main hydraulic cylinders 1;

[0035] The booster locking mechanism includes a booster mechanism and a restraint mechanism, and the booster mechanism...

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Abstract

The invention discloses a hydraulic pressurizing mold locking device for a split mold. The device comprises a frame, a mold closing mechanism and a pressurizing and locking mechanism, the pressurizing and locking mechanism comprises a pressurizing mechanism and a restraining mechanism used for restraining movement of the pressurizing mechanism, the pressurizing mechanism comprises a pressurizing sliding block with a pressurizing cavity inside, a small-diameter pressure cylinder and a large-diameter pressurizing cylinder are sequentially arranged in the pressurizing cavity in the mold closing direction, a pressure piston is arranged in the pressure cylinder in a sliding fit mode, a pressurizing piston is arranged in the pressurizing cylinder in a sliding fit mode, the mold closing mechanism drives the pressurizing sliding block to move to a preset position, the position of the pressurizing sliding block is locked through the restraining mechanism, the power output end of the mold closing mechanism drives the pressure piston to move in the pressurizing cavity, pressure is transmitted through a pressure transmitting medium to enable the pressurizing piston to act, and large mold closing force is applied to the split mold. According to the scheme, the pressurizing mechanism is driven by the mold closing mechanism, the mold opening and closing stroke is large, the mold opening space of the mold is increased, and technological operation is facilitated.

Description

technical field [0001] The invention relates to the technical field of metal plastic processing, in particular to a hydraulic pressurized mold clamping device for flap-closing moulds. Background technique [0002] At present, for parts with lateral groove structures such as automobile hubs, two or more flap-closing modules need to be used to form a flap-closing die during plastic forming. When forming, the concave mold flaps should be closed first, and after forming, the concave mold flaps should be laterally divided, and then the parts can be ejected and demoulded. [0003] The requirements of this process for the mold are: 1) The closing and parting action of the flap-closing module should be rapid to improve production efficiency; 2) When the flap-closing module is closed, there must be sufficient clamping rigidity to prevent the mold from being deformed during the forming process. The lateral expansion force causes the mold to expand outward, causing defects such as ell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02B21C31/00
CPCB21C25/02B21C31/00
Inventor 杨茜杨永顺虞跨海
Owner HENAN UNIV OF SCI & TECH
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