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Draw hook-type two-stage ejection die mechanism

A two-stage ejection, mold mechanism technology, applied in the field of metal die-casting mold and plastic injection mold

Inactive Publication Date: 2011-04-20
牟维军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The action of this mechanism is firm and reliable, the pressure transmission is very good, the adjustment and installation are convenient, it overcomes the problem of poor product quality in one launch, greatly improves the production efficiency and saves the production cost

Method used

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  • Draw hook-type two-stage ejection die mechanism
  • Draw hook-type two-stage ejection die mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Shown in the figure is the hook-type secondary ejection mold mechanism, its working principle: the primary push plate 15 and the secondary push plate 13 of the mold ejection mechanism are connected into one body through two pairs of pull hooks 34, when the two-stage push plate starts to push out Synchronous action, the push rod 10 of the first-stage push plate pushes the fixed plate 6 and the large-area push block 5, the product is separated from the die 4 and loosened from the core 26, and the first-stage push is completed. When drag hook 34 hits wedge 32 and rotates to make the first and second-level push pedals unhook, the first-level push pedal stops moving, and the second-level push pedal continues to move forward, and push rod 23 drives push tube 8 to push the product out of the mold completely. Reset rod 3 is arranged on the secondary push-out mechanism, and the primary push plate is reset together when it resets. Above-mentioned action repeats movement back and ...

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Abstract

A draw hook-type two-stage ejection die mechanism comprises a support plate, screws, an extension spring, a draw hook, cylindrical pins, wedges, a sprue bush, a guide pillar, a guide sleeve, a core, a push rod, a reset rod, a cushion block, a backing plate, a moving template, stop nails, stop pins, a one-stage spread plate, a fixed plate, a two-stage push plate, a support plate, push blocks, an ejector sleeve, a fixed template, a female die, etc. (the connection mode is shown in specification figures). The mechanism utilizes the draw hook to perform the die opening for a certain distance and then to grab a push plate, realizing the first pushing. The second pushing is completed by a partial movable die ejecting mechanism. Meanwhile, when the first pushing is performed, the deformation and the damage of products are effectively prevented by employing the mechanism. The ejection force can be dispersed by the mechanism, and the products can be demoulded successfully. The mechanism is characterized in that the pressure force transmission is fine, the motion is very safe, and maintenance and regulation is very convenient.

Description

technical field [0001] The invention relates to a metal die-casting mold and a plastic injection mold, and is a mold mechanism that adopts a pull hook type to push out products in two stages. Background technique [0002] Before the product is removed from the mold, there is a process of ejecting from the molded part of the mold. The mechanism that makes the plastic part escape from the molded part is called the ejection mechanism. At present, most of the products in the mold manufacturing industry are released in one action, but some products are released in one time, which is prone to deformation or even damage. Therefore, a second push must be used for this type of product to disperse the demoulding force so that the product can be demoulded smoothly. This mechanism that completes the demoulding of a product by two push-out actions is called a secondary push-out mechanism. In the mold manufacturing industry, the two-level push-out mechanism currently used is: A, single ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22B29C45/26B29C45/40
Inventor 牟维军
Owner 牟维军
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