CN201268078Y

CN201268078Y - Compressed air demoulding system of thin wall deep cavity mould

Info

Publication number: CN201268078Y
Application number: CNU200820131668XU
Authority: CN
Inventors: 俞建江
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-02
Filing date: 2008-08-02
Publication date: 2009-07-08
Anticipated expiration: 2018-08-02

Abstract

The utility model provides a compressed air demold system of a thin-wall deep-cavity mold, comprising an air source (1), an air channel (2), an air pin (3), an air port (4), an air nozzle (41), a quick connector (5), a static mold (6) and a moveable mold (7). In the utility model, air blowing points are arranged on different parts of the mold, and in the pneumatic demold technology, the injection products are detached from the moveable mold core under the effect of an air cushion and the ejecting effect of the compressed air, so that the defects of the prior art that the prior hydraulic ejecting method takes much more labor, time, material and energy, has high cost and lower efficiency are overcome; the pneumatic ejecting technology substitutes for the hydraulic ejecting method in the prior art, thus simplifying the mold structure, realizing the target of labor saving, time saving, material saving, energy saving, low cost and high efficiency of the injection mold manufacturing and the injection technic of the thin-wall deep-cavity injection products.

Description

The compressed-air ejection system of the dark chamber of thin-walled class mould

Technical field

The utility model relates to a kind of dismoulding system of injection mold, specifically is meant the compressed-air ejection system of the dark chamber of a kind of thin-walled class mould that is applied in the dark chamber of injection mo(u)lding thin-walled class plastic member product.

Background technology

In the injection moulding industry, there is the plastic products structure of considerable part to have the dark chamber of thin-walled characteristics, the mould of prior art design is to rely on hydraulic ram (push rod) ejecting mechanism to realize the plastic member product demoulding, consult Fig. 2, promptly, form ejecting mechanism by the mould pin 01 of mould, top board 02, jacking block (stripper plate) 03 etc., utilize hydraulic injection molding machine powered mould dynamic model top board 02 to move forward, top board 02 drives the jacking block 03 direct goods that promote and moves, and reaches the purpose that plastic member product 08 breaks away from dynamic mould core 71; In order to eject core to goods fully, generally require the degree of depth of the height of mould pin, to satisfy the needs of ejection stroke greater than goods.Because parts such as the mould pin of ejecting mechanism, top board need consume a large amount of steel, so total material of mould and processing cost height just; Ejecting mechanism mould foot section has increased the total height of mould, and the mould total height is high more, the impulse stroke that die sinking, mold closing need is long more, just need the injection machine of big specification (large-tonnage clamp force) to come supporting injection moulding, cause inferior injection cycle long (time-consuming), the cost height, low in economic efficiency of big, the every mould of Shooting Technique energy consumption of plastic member product.For these reasons, prior art exist take a lot of work, time-consuming, expense material, power consumption, cost height, inefficient deficiency.

Summary of the invention

The deficiency that the utility model exists at above-mentioned prior art, employing is arranged the air blowing point at the mould different parts, make plastic member product break away from the Pneumatic demould technical scheme of dynamic mould core by compressed-air actuated air cushion thrusting action, the compressed-air ejection system of the dark chamber of a kind of thin-walled class mould is provided, be intended to hydraulic pressure pushing method with this alternative prior art, simplify mould structure, make the injection mold manufacturing and the Shooting Technique of the dark chamber of thin-walled class plastic member product reach the saving of labor, save time, material-saving, energy-conservation, cost is low, efficient is high purpose.

The purpose of this utility model is achieved in that the compressed-air ejection system of the dark chamber of a kind of thin-walled class mould comprises source of the gas, air flue, the gas tip, gas port, valve, snap joint, quiet mould, dynamic model, wherein: described source of the gas is for to be made of air compressor machine, air accumulator, multichannel independence magnetic valve and gas pipeline, electric control unit, and can stablize provides 0.5～0.8Mpa compressed-air actuated system; Described air flue is to be arranged on the how logical of quiet mould, dynamic model inside and air-channel system independently; The described gas tip is the core that is arranged on the die cavity chamber wall of quiet mould and dynamic model along on the quiet dynamic model folding axis direction wall, links to each other with many airways separately, and its plug is by pneumatic unlatching, the compressed air outlet parts that automatically reset and seal during no air pressure; Described gas port is some uniform the be arranged on core of dynamic model and communicating with many airways of core mold insert junction surface sidewall, and gap length is less than the flute profile slit of 0.1mm; Described valve is located at the jet hole on the dynamic model die joint for what communicate with separated air flue; Described snap joint is to be arranged on quiet mould, the dynamic model Side wall, the compressed air that communicates with the air flue parts of plugging into; Described quiet mould is in the mould, is installed in during work on the static working face of injection machine, plugs into injection port, and is motionless during the folding mould, the part of carrying goods mould form; Described dynamic model is in the mould, be installed in during work on the injection machine motion working face, during the folding mould after before motion, the part of carrying goods model core.

Operation principle:

Matched moulds, injection moulding, pressurize are finished until cooling; The compressed air that source of the gas 1 provides is subjected to each way solenoid valve control (manually or automatically, magnetic valve is controlled by the injection machine computer controller), enters in the mould separately air flue through each road snap joint successively; Die sinking simultaneously, quiet mould gas tip magnetic valve is opened, and compressed air backs down the plug of the gas tip that is located at die cavity and blows, and the dynamic model band the plastic member product die sinking and retreated and pull out cast gate material with fixed attention, under the acting in conjunction of compressed air and package power (frictional force of goods and core), plastic member product separates with die cavity; Die sinking is finished, dynamic model gas tip magnetic valve is opened, compressed air backs down the plug of the gas tip that is located at the dynamic model top and blows, and promotes plastic member product and separates forward, simultaneously, compressed air enters between the Side wall and plastic member product of core by gas port, and form the auxiliary plastic member product disengaging of air cushion layer generation lubricating effect core, and to delay time after several seconds, dynamic model valve magnetic valve is opened, compressed air is blown forward by the valve that is located at the dynamic model die joint, and powerful air-flow promotes plastic member product and finally comes off.

The utility model adopts above-mentioned Pneumatic demould technical scheme to substitute the hydraulic pressure pushing method of prior art, simplified mould structure, made the injection mold manufacturing and the Shooting Technique of the dark chamber of thin-walled class plastic member product reach the saving of labor, save time, material-saving, energy-conservation, cost is low, efficient is high purpose.

Description of drawings

Fig. 1 is the schematic diagram of the compressed-air ejection system of the dark chamber of thin-walled of the present utility model class mould;

Fig. 2 is the schematic diagram of the hydraulic mandril ejecting mechanism mould of prior art;

Below in conjunction with the embodiment in the accompanying drawing the utility model is described in further detail, but should not be construed as any restriction of the present utility model.

Among the figure: source of the gas 1, air flue 2, the gas tip 3, gas port 4, valve 41, snap joint 5, quiet mould 6, die cavity 61, dynamic model 7, core 71, core mold insert 72, base plate 73, plastic member product 8, mould pin 01, top board 02, jacking block (stripper plate) 03, computer controller 04, dynamic model gas tip magnetic valve 05, dynamic model valve magnetic valve 06, quiet mould gas tip magnetic valve 07.

The specific embodiment

Consult Fig. 1, the compressed-air ejection system of the dark chamber of thin-walled of the present utility model class mould comprises source of the gas 1, air flue 2, the gas tip 3, gas port 4, valve 41, snap joint 5, quiet mould 6, dynamic model 7, wherein: described source of the gas 1 is for to be made of air compressor machine, air accumulator, multichannel independence magnetic valve and gas pipeline, electric control unit, and can stablize provides 0.5～0.8Mpa compressed-air actuated system; Described air flue 2 is for being arranged on the how logical of quiet mould 6, dynamic model 7 inside and air-channel system independently; The described gas tip 3 for the core 71 of the die cavity 61 chamber walls that are arranged on quiet mould 6 and dynamic model 7 along on the quiet dynamic model folding axis direction wall, link to each other with many airways 2 separately, its plug leans on pneumatic unlatching, the compressed air outlet parts that automatically reset and seal during no air pressure; Described gas port 4 is some uniform the be arranged on core 71 of dynamic model 7 and communicating with many airways 2 of core mold insert 72 junction surface Side walls, and gap length is less than the flute profile slit of 0.1mm; Described valve 41 is located at the jet hole on dynamic model 7 die joints for what communicate with separated air flue 2; Described snap joint 5 is for to be arranged on quiet mould 6, dynamic model 7 sidewalls, the compressed air that communicates with air flue 2 parts of plugging into;

Described quiet mould 6 is in the mould, is installed in during work on the static working face of injection machine, plugs into injection port, and is motionless during the folding mould, the part of carrying goods mould form 61; Described dynamic model 7 is in the mould, be installed in during work on the injection machine motion working face, during the folding mould after before motion, the part of carrying goods model core 71.

Operation principle:

Matched moulds, injection moulding, pressurize are finished until cooling; The compressed air that source of the gas 1 provides is subjected to each way solenoid valve control (manually or automatically, each magnetic valve is controlled by injection machine computer controller 04), enters in the mould separately air flue 2 through each road snap joint 5 successively; Die sinking simultaneously, quiet mould gas tip magnetic valve 07 is opened, compressed air backs down the plug of the gas tip 3 that is located at die cavity 61 and blows, dynamic model 7 is being with plastic member product 8 die sinkings to retreat and pull out cast gate material with fixed attention, under the acting in conjunction of compressed air and package power (frictional force of goods and core), plastic member product 8 separates with die cavity 61; Die sinking is finished, dynamic model gas tip magnetic valve 05 is opened, compressed air backs down the plug of the gas tip 3 that is located at dynamic model 7 tops and blows, promoting plastic member product 8 separates forward, simultaneously, compressed air enters between the sidewall and plastic member product 8 of core 71 by gas port 4, and the formation air cushion layer produces the auxiliary plastic member product 8 disengaging cores 71 of lubricating effect, delay time after several seconds, dynamic model valve magnetic valve 06 is opened, compressed air is blown forward by the valve 41 that is located at dynamic model 7 die joints, and powerful air-flow promotes plastic member product 8 and finally comes off.

Claims

1, the compressed-air ejection system of the dark chamber of thin-walled class mould comprises source of the gas (1), air flue (2), the gas tip (3), gas port (4), valve (41), snap joint (5), quiet mould (6), dynamic model (7), it is characterized in that: described source of the gas (1) is for to be made of air compressor machine, air accumulator, multichannel independence magnetic valve and gas pipeline, electric control unit, and can stablize provides 0.5～0.8Mpa compressed-air actuated system; Described air flue (2) is for being arranged on inner how logical of quiet mould (6), dynamic model (7) and air-channel system independently; The described gas tip (3) is for being arranged on die cavity (61) the chamber wall of quiet mould (6) and the core (71) of dynamic model (7), along on the quiet dynamic model folding axis direction wall, link to each other with many airways (2) separately, its plug is by pneumatic unlatching, the compressed air outlet parts that automatically reset and seal during no air pressure; Described gas port (4) is some uniform the be arranged on core (71) of dynamic model (7) and communicating with many airways (2) of core mold insert (72) junction surface sidewall, and gap length is less than the flute profile slit of 0.1mm; Described valve (41) is located at the jet hole on dynamic model (7) die joint for what communicate with separated air flue (2); Described snap joint (5) is for to be arranged on quiet mould (6), dynamic model (7) sidewall, the compressed air that communicates with air flue (2) parts of plugging into; Described quiet mould (6) is in the mould, is installed in during work on the static working face of injection machine, plugs into injection port, and is motionless during the folding mould, the part of carrying goods mould forms (61); Described dynamic model (7) is in the mould, be installed in during work on the injection machine motion working face, during the folding mould after before the motion, the carrying goods model cores (71) part.

2, the compressed-air ejection system of the dark chamber of thin-walled according to claim 1 class mould, it is characterized in that: described working procedure is, die sinking simultaneously, quiet mould gas tip magnetic valve (07) is opened, compressed air backs down the plug of the gas tip (3) that is located at die cavity (61) and blows, and plastic member product (8) separates with die cavity (61); Die sinking is finished, dynamic model gas tip magnetic valve (05) is opened, compressed air backs down the plug of the gas tip (3) that is located at dynamic model (7) top and blows, promoting plastic member product (8) separates forward, simultaneously, compressed air enters between the sidewall and plastic member product (8) of core 71 by gas port (4), and the formation air cushion layer produces auxiliary plastic member product (8) disengaging of lubricating effect core (71), delay time after several seconds, dynamic model valve magnetic valve (06) is opened, compressed air is blown forward by the valve (41) that is located at dynamic model (7) die joint, and powerful air-flow promotes plastic member product (8) and finally comes off.