CN204817910U - Push rod mechanism subassembly on mould - Google Patents

Abstract

The utility model provides a push rod mechanism subassembly on mould which characterized in that includes: the ejector pin, it sets up above the magnet of roof down, the ejecting portion in upper end of ejector pin is " T " type, the lower extreme of ejector pin extends to down the roof to, be equipped with " T " type portion's complex " T " the die cavity with the ejector pin on the mould, the beneficial effects of the utility model reside in that the utility model discloses can reduce ejector pin, the roof preparation degree of difficulty, the assembly is simple and easy, the convenient change, preparation and maintenance cost is reduced.

Description

A kind of mould upper ejector pin mechanism assembly

Technical field

The invention belongs to machine casting field, be specifically related to a kind of mould upper ejector pin mechanism assembly.

Background technology

Under traditional moulds, the design of (along gravity direction lower end) bar forms closed loop in core ejection mechanism, and push rod is comparatively elongated.Give making, assembling like this, safeguard and bring very big inconvenience.

Manufacture difficulty is large: wherein push rod needs round steel to make, and itself and bottom top board are fastenedly connected.The corresponding mounting hole position needs higher dimensional precision and positional precision.

Assembling difficulty is large: because push rod required precision is high, during assembling, pincers worker operates careless slightly scratch push rod.Need repeatedly to repair and grind push rod until without clamping stagnation.

Replacing difficulty is large: changing push rod needs careful operation to change equally, and needs mould bottom assembly to take apart and could change.

Summary of the invention

The present invention is directed to the deficiencies in the prior art, propose a kind of mould upper ejector pin mechanism assembly, the present invention can reduce push rod, top board manufacture difficulty; Assemble simple and easy, be convenient for changing; Reduce and make and maintenance cost.

In order to solve above technical problem, the invention provides following technical scheme:

A kind of mould upper ejector pin mechanism assembly, comprising:

Push rod, it is arranged on above the magnet of lower roof plate, and the upper end ejection part of described push rod is T-shape, and the lower end of described push rod extends to lower roof plate, and mould is provided with the T-shape chamber coordinated with the T-shape portion of push rod;

Lower roof plate, described lower roof plate arranges groove in the corresponding position of push rod lower end, is provided with magnet in groove.

Further, described mould is cold-box.

Beneficial effect of the present invention is:

1) push rod, top board manufacture difficulty is reduced

2) simple and easy assembling, to be convenient for changing;

3) making, maintenance cost is reduced.

Accompanying drawing explanation

Fig. 1 is that prior art and compare device of the present invention scheme.

In figure: 1, closed loop dimensional fits, 2, upper T-shape push rod, 3, open loop dimensional fits, 4, magnet.

Detailed description of the invention

Below in conjunction with Figure of description, the specific embodiment of the present invention is described,

Composition graphs 1, a kind of mould upper ejector pin mechanism assembly, comprising:

Push rod, it is arranged on above the magnet of lower roof plate, and the upper end ejection part of described push rod is T-shape, and the lower end of described push rod extends to lower roof plate, and mould is provided with the T-shape chamber coordinated with the T-shape portion of push rod;

Lower roof plate, described lower roof plate arranges groove in the corresponding position of push rod lower end, is provided with magnet in groove.

Further, described mould is cold-box.

In concrete use procedure, when assembling, push rod is assembled from the top down, push rod lower end is stretched in the T-shape chamber of mould, extend downward top board, and the lower end of push rod is contacted with the magnet on top board, meanwhile, the T-shape ejection part of push rod upper end matches with the T-shape chamber of mould.When changing, with top board by push rod jack-up, and take out from the T-shape chamber of mould.

Technical scheme of the present invention, just push rod connected mode changes to contact connection by buckle connection, and closed loop dimensional fits is changed to open loop.Reduce parts and make precision.Recycling push rod self gravitation and strong magnets by push rod return, thus efficiently solve the making of push rod difficulty, difficult assembling, the difficult problem changed.

Above a kind of mould upper ejector pin mechanism assembly that the application provides is described in detail, apply embodiment herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.

Claims (2)

1. a mould upper ejector pin mechanism assembly, is characterized in that, comprising:

Push rod, it is arranged on above the magnet of lower roof plate, and the upper end ejection part of described push rod is T-shape, and the lower end of described push rod extends to lower roof plate, and mould is provided with the T-shape chamber coordinated with the T-shape portion of push rod;

Lower roof plate, described lower roof plate arranges groove in the corresponding position of push rod lower end, is provided with magnet in groove.

2. mould upper ejector pin mechanism assembly according to claim 1, is characterized in that, described mould is cold-box.