CN2895023Y - Pressure maintaining device - Google Patents

Abstract

The utility model is a pressure maintaining device, in particular to a replacing device for replacing the feeding screw and maintaining pressure for the injection mold during injection molding, which comprises pressure maintaining tank with a pressure maintaining piston; a pressure maintaining piston rod, one end of which is joined with the pressure maintaining piston, while the other end of which is provided with a rod end seat and a recess sag that is larger than a semi-sphere; a rod end joint seat, one end of which is provided with a universal joint that is coupled with the recess in a rotating form, while the other end of which is coupled with a cut-off rod connecting rod with a pivot rotated; a cut-off rod connecting rod, the other end of which is connected with a pressure maintaining rod through a rotating axis, while the external end of which is connected with the cut-off rod of the injection machine. The utility model can replace the feeding screw to maintain pressure for the injection mold after injection.

Description

Pressurizer

Technical field

The utility model is a kind of pressurizer, refers to a kind of alternative feeds screw rod when ejection formation especially and is the replacement device that penetrates mould pressurize action.

Background technology

Plastics penetrate in work finding more, and be one of important industry, trace it to its cause, be that it can see through the effect that mould molding reaches a large amount of productions and quality homogeneous, so, emission technology and mould development are also ripe day by day because of dealer's continuous effort, and even to this day, plastics penetrate and also become one of main forming method.

Penetrate operation normally by ejaculator, and as shown in Figure 1, ejection formation is by a feed worm A, its end tool one material mouth B, when charging, the ejaculation mouth that screw rod A will shoot material and deliver to front end forward, and this is simultaneously, mould is matched moulds, penetrating mouth will shoot material from the charging aperture injection of mould, and it is motionless that feed worm A keeps, that is push against keeping the jetting mold pressure inside, can be evenly and be attached in the die cavity in a down-to-earth manner and be typing so that shoot material.

After moulding, then feed worm A begins rotary feeding and retreats, and gets back to the feed entrance point preparation, then readvances, so repeatedly operation.

Will be appreciated that its operation of this mode is no doubt smooth, and the space of improvement is then arranged only in time, in fact, with feed worm A is that shooting material typing of pressurize and making is then return again and is charging once more, causes naturally and procrastinates, and its reason is, to the pressurize of penetrating, must not carry out by feed worm A, so, when pressure maintaining period, feed worm A then can effectively shorten the time in each operation cycle if can prepare for the charging of returning simultaneously.

The utility model content

The purpose of this utility model is for overcoming above-mentioned disappearance, reduces the injection molding stand-by period, improves the operating efficiency of ejaculator, and discloses " pressurizer " of the present utility model.

For achieving the above object, solution of the present utility model provides a kind of pressurizer, is ejecting end one side of being located at ejaculator, and it comprises:

One pressurize cylinder, its tool one pressurize piston;

One pressurize piston rod, the one end is linked to the pressurize piston, and other holds then tool one rod end seat, and tool one is greater than the recessed depression of the seat of hemisphere;

One rod end plinth, one end tool one are coupled to the recessed universal joint of seat rotationally, and end then borrows a pivot to be linked to a check rod connecting rod pivotly in addition;

One check rod connecting rod, it is held in addition and borrows a rotating shaft to be linked to guarantor's compressing rod, and the outboard end place then is linked to the check rod of ejaculator;

Make and penetrate the alternative feed worm in back for penetrating the pressurize of back mould.

Described pressurizer, pressurize cylinder wherein is an oil hydraulic cylinder.

Described pressurizer, pressurize cylinder wherein are to exert pressure when penetrating.

Enforcement of the present utility model can be assisted or alternative pressurize mode, makes tradition and known feed worm A exempt pressurize and this time is used for gets the raw materials ready, and the shortening of penetrating duty cycle is had greatest benefiting, and be ejecting device unprecedented one big good structure.

Description of drawings

Schematic diagram when Fig. 1 implements for the utility model;

Schematic diagram when Fig. 2 does not exert pressure for the utility model pressurizer;

Schematic diagram when Fig. 3 exerts pressure for the utility model pressurizer.

The specific embodiment

As shown in the figure, basically, pressurizer of the present utility model is a side of being located at the ejecting end of ejaculator, and it comprises that a pressurize cylinder 1, one pressurize piston rod 2, one rod end plinths 3, one check rod connecting rods 4 form.

Wherein, pressurize cylinder 1 is to be the cylinder body with the piston motion, so, the pressurize piston 11 that tool can move back and forth in it, this pressurize cylinder 1 can be oil hydraulic cylinder or pneumatic cylinder, and this is known skill, so do not intend giving unnecessary details.

Pressurize piston rod 2 is to be strip, the one end is fixedly connected in aforesaid pressurize piston 11, and other holds then tool one rod end seat 21, these rod end seat 21 front ends then tool greater than hemispheric seat recessed 22, so pressurize piston rod 2 can move and is reciprocating motion along with aforesaid pressurize piston 11.

Rod end plinth 3 be for link aforementioned pressurize piston rod 2 and after chat between the check rod connecting rod 4, the one end is the universal joint 31 of tool one sphere then, the check rod connecting rod of chatting after in addition end then is linked to pivotly with a pivot 32 4.

Check rod connecting rod 4 is to be the body of rod, before address, the one end is to be linked to rod end plinth 3 pivotly with rotating shaft 41, other holds then tool one to pivot and is linked to pressurize material pipe 42, and the end links the end of check rod 43, so, check rod connecting rod 4 can move in knock-off joint seat 3 mutually to pivoting, and can make and push away before the check rod 43 or retreat, and then make a material mouthful B be pressurize or release of pressure when reality is implemented, must add and put check ring C and prevent the guide pillar D that the check ring is deviate from.

Please consult accompanying drawing again, the utility model is when implementing, after then feed worm A advances and makes injection material inject die orifice behind the matched moulds via material mouthful B, then the pressurize piston 11 of pressurizer of the present utility model is pushed forward, and make rod end plinth 3 drive to rod end plinth 3 pivotly because of the rotation of universal joint 31, and it further pushes check rod 43 forward and push against, to carry out pressurize, and this simultaneously, then feed worm A can return and get the raw materials ready, after treating default molding time, then pressurize piston 11 is return, and check rod 43 is retreated, and then can be the demoulding and take out finished product, when matched moulds once more, then feed worm A has got the raw materials ready and has advanced to the position that shoots material, and soon shoots material, and after the utility model pressurizer " catcher " pressurize, soon retreat again and get the raw materials ready, so can save the meaningless time that feed worm A participates in pressurize, and then increase work efficiency and output.

The utility model those disclosed herein are a kind of of preferred embodiment, and claim protection category of the present utility model is not all taken off in Ju Bu change or modification and come from technological thought of the present utility model and be easy to the person of knowing by inference by the people who has the knack of this skill such as.

Claims (2)

1. a pressurizer is ejecting end one side of being located at ejaculator, it is characterized in that, comprising:

One pressurize cylinder, its tool one pressurize piston;

One pressurize piston rod, the one end is linked to the pressurize piston, and other holds then tool one rod end seat, and tool one is greater than the recessed depression of the seat of hemisphere;

One rod end plinth, one end tool one are coupled to the recessed universal joint of seat rotationally, and end then borrows a pivot to be linked to a check rod connecting rod pivotly in addition;

One check rod connecting rod, it is held in addition and borrows a rotating shaft to be linked to guarantor's compressing rod, and the outboard end place then is linked to the check rod of ejaculator;

Make and penetrate the alternative feed worm in back for penetrating the pressurize of back mould.

2. pressurizer as claimed in claim 1 is characterized in that, pressurize cylinder wherein is an oil hydraulic cylinder.