CN208578806U - A kind of hydraulic system can be shortened interior high-pressure molding process cycle - Google Patents

Abstract

A kind of hydraulic system can be shortened interior high-pressure molding process cycle, it include: left and right horizontal oil cylinder, water pressurized cylinder, pressurized cylinder booster oil pump, pressurized cylinder small pump, oil or water delivery pipe, electric controller, add the super-pressure accumulator of a compressed gas accumulation of energy, the high-pressure water chamber of super-pressure accumulator is separately connected the high pressure water inlet on pressurized cylinder and material port block head, has high service solenoid valve on the water-supply-pipe between super-pressure accumulator and material port block head；Separately there is molded part inner cavity pressure relief drain mouth on material block head, pressure relief drain pipe is connected on pressure relief drain mouth, pressure relief drain Guan Shangyou pressure relief drain solenoid valve, the good effect of the utility model is, in the period that the boost process of shaped high tension water is overlapped to material sealing, the pressure relief drain pipe and drain valve that separately set spray the release mode let out, moment release, make the interior high-pressure molding process cycle used time 30% -50% fewer than original technique, production efficiency can be significantly improved, reduce the manufacturing cost of product.

Description

A kind of hydraulic system can be shortened interior high-pressure molding process cycle

Technical field

The utility model belongs to mechanical production devices field.More particularly to the pressure system of interior high-pressure molding.

Background technique

In the prior art, hydraulic system used in interior high-pressure molding is as shown in Figure 1, comprising: is directed toward the water at material both ends Flat hydraulic cylinder, by the pressurized cylinder of low pressure oil pocket and high-pressure water chamber, pressure oil pump, small pump, liquid transmission pipeline, electric controller.Before The work step for the hydraulic system stated is: material is put into pattern, horizontal hydraulic cylinder feed, and material block head is moved to designated position The port at material both ends is sealed, oil pocket oiling of the starting oil pump to pressurized cylinder is pressurized the water cavity of pressurized cylinder, the high pressure water of formation Material is injected, material compression shape becomes product.The decompression of pressurized cylinder oil pocket oil extraction later, pressurized cylinder piston retreat, partial high pressure water Backtracking high-pressure water chamber, hydraulic pressure decline, and release in molded part, left and right horizontal hydraulic cylinder retracts original position, take out molded part, place Next material repeats interior high-pressure molding process.During previous process, the high-voltage end of pressurized cylinder from initial 0MPa gradually The high pressure of setting is boosted to, then reversely gradually release is depressured to 0MPa from high pressure, needs about 30-45 seconds time-consuming.Existing interior high pressure Moulding process, hence it is evident that there are the pressure waiting time, the shortening of limit product process cycle and the raising of production efficiency.

Utility model content

The purpose of the utility model is to provide a kind of hydraulic systems that can be shortened interior high-pressure molding process cycle, are used for interior height The manufacture of molded product overcomes high-pressure molding compression system above shortcomings in the prior art.

The hydraulic system of the utility model includes: left and right horizontal oil cylinder, the interior shaped high tension water for blocking material both ends port Pressurized cylinder, pressurized cylinder booster oil pump, pressurized cylinder small pump, oil and water delivery pipe, electric controller, electric controller therein include: Control chip, cross cylinder displacement sensor, cross cylinder rod chamber pressure sensor, cross cylinder rodless cavity pressure sensing Device, cross cylinder fuel feeding proportional flow solenoid valve, pressurized cylinder oil pump promote the displacement sensor of low-pressure end, proportional flow electromagnetism Valve, rod chamber pressure sensor, rodless cavity pressure sensor, improvements introduced is: it is former to add a job identical as pressurized cylinder The super-pressure accumulator of reason is filled with accumulation of energy gas in super-pressure accumulator low-pressure end (rodless cavity) or is packed into accumulation of energy air bag, superelevation The high-voltage end of accumulator is pressed to connect the high pressure water inlet on pressurized cylinder and material port block head with water-supply-pipe respectively, super-pressure stores There can be high service solenoid valve on water-supply-pipe between device and material port block head；Separately have in molded part on material block head Chamber pressure relief drain mouth connects pressure relief drain pipe, pressure relief drain Guan Shangyou pressure relief drain solenoid valve, high service on pressure relief drain mouth Solenoid valve and pressure relief drain solenoid valve access electric controller.

The optimization structure of the utility model includes:

Pressure sensor and high-pressure manometer are installed before the valve of high service solenoid valve and pressure relief drain solenoid valve.

High pressure check (non-return) valve is installed in the high-voltage power supply entrance side of high pressure accumulator high-voltage end, and an external physics superpressure is automatic Pressure relief valve shares a pressure gauge and pressure sensor with high service valve.

Inflation/drain tap and an external pressure gauge and displacement sensor are connected in super-pressure accumulator low-pressure end tail portion

The low-pressure end and high-voltage end inner chamber of cylinder block sectional area of super-pressure accumulator are than preferred 16:1

The working principle of the utility model is: high service valve closing state, starts while starting left and right horizontal oil cylinder Pressurized cylinder injects pressure (hydraulic) water to the water cavity of super-pressure accumulator, and the pressure (hydraulic) water volume of injection super-pressure accumulator is pressed during increasing Gas in contracting super-pressure accumulator air cavity carries out accumulation of energy, and when cross cylinder is fed in place, super-pressure accumulator completes accumulation of energy, surpasses High pressure accumulator high pressure chest is included in the high pressure water of molding dosage, while the closure of material port is completed in cross cylinder feed in place, High service valve is opened, and water, pressure imbalance in super-pressure accumulator, gas compressed instantaneously expand, high pressure water quickly squeezed Enter material inner cavity, completes interior high-pressure molding.After molding, high service valve is closed, and is opened pressure relief drain valve, is instantaneously unloaded in molded part Pressure, takes out molded part, and release simultaneously, completes pressurized cylinder moisturizing.Repeat next technical process.

The good effect of the utility model is to be different from the compressible physical property of liquid using gas, pass through compression The approach of gas energy storage overlapped the boost process of shaped high tension water in the period that material seals, the pressure relief drain pipe separately set And drain valve sprays the release mode let out, energy moment release drastically reduces the release used time.It is crossed and element by the boosting of high pressure water The synchronization of material capping processes and the dual change of hydraulic speed-raising, shorten dramatically interior high-pressure molding process cycle.Through pilot production Detection, the process cycle of the utility model is only 15-30 seconds, the used time 30% -50% fewer than original technique, can significantly improve life Efficiency is produced, the manufacturing cost of product is reduced.

Detailed description of the invention

Fig. 1 is interior high-pressure molding hydraulic system principle figure in the prior art.

Fig. 2 is high-pressure molding hydraulic system principle figure in the utility model.

Fig. 3 is super-pressure accumulator structure schematic diagram in the utility model.

Specific embodiment

Refering to Fig. 2, Fig. 3, the hydraulic system of the utility model includes: to be directed toward the horizontal oil in left and right two of material port position Cylinder 1, interior shaped high tension water pressurized cylinder 2, pressurized cylinder booster oil pump (not shown), pressurized cylinder small pump (not shown), high pressure water are defeated Send pipe 3, control chip (not shown), cross cylinder displacement sensor (not shown), cross cylinder rod chamber pressure sensor (not Draw), cross cylinder rodless cavity pressure sensor (not shown), cross cylinder fuel feeding proportional flow solenoid valve (not shown), increase Cylinder pressure oil pump promotes the displacement sensor (not shown) of low-pressure end, proportional flow solenoid valve (not shown), rod chamber pressure sensing Device (not shown), rodless cavity pressure sensor (not shown), improvements introduced is: adding the super-pressure of a compressed gas accumulation of energy Accumulator 4, super-pressure accumulator include the low-pressure end 4-1 on the coaxial line surrounded by cylinder body and the high-voltage end 4-2 containing high pressure water Composition, wherein the inner chamber of cylinder block sectional area ratio of the low-pressure end 4-1 and high-voltage end 4-2 of super-pressure accumulator are 16:1.In low-pressure end 4-1 rodless cavity is packed into the accumulation of energy air bag 5 for being filled with nitrogen.The high-voltage end 4-2 of super-pressure accumulator is protruded by cylinder body and dynamic low-pressure end The piston rod of cylinder body surrounds, and high-voltage end water-supply-pipe 3 is separately connected the interior shaped high tension on pressurized cylinder and material port block head Water inlet has high service solenoid valve 6 on the high pressure water transport pipe between super-pressure accumulator 4 and material port block head 7.In element Separately there is molded part internal pressure pressure relief drain mouth on material block head 7, connect pressure relief drain pipe 8 on pressure relief drain mouth, on pressure relief drain pipe There is pressure relief drain solenoid valve 9.Pressure sensor and height are installed before the valve of high service solenoid valve 6 and pressure relief drain solenoid valve 9 Pressure pressure table (not shown).High pressure check (non-return) valve 10, and external one are installed in the high-voltage power supply entrance side of high pressure accumulator high-voltage end Physics superpressure releasing pressure automatically valve (not shown) shares a pressure gauge and pressure sensor (not shown) with high service valve. Inflation/drain tap and an external pressure gauge are connected in super-pressure accumulator low-pressure end tail portion and displacement sensor (is not drawn Out).

Claims (5)

1. a kind of hydraulic system that can be shortened interior high-pressure molding process cycle, comprising: block the left and right horizontal of material both ends port Oil cylinder, interior shaped high tension water pressurized cylinder, pressurized cylinder booster oil pump, pressurized cylinder small pump, oil and water delivery pipe, electric controller, In electric controller include: control chip, cross cylinder displacement sensor, cross cylinder rod chamber pressure sensor, horizontal oil Cylinder rodless cavity pressure sensor, cross cylinder fuel feeding proportional flow solenoid valve, pressurized cylinder oil pump promote the displacement sensing of low-pressure end Device, proportional flow solenoid valve, rod chamber pressure sensor, rodless cavity pressure sensor, it is characterized in that: adding one and pressurized cylinder The super-pressure accumulator of identical working principle is filled with accumulation of energy gas in the rodless cavity of super-pressure accumulator low-pressure end or is packed into accumulation of energy Air bag, the high-voltage end of super-pressure accumulator respectively with water-supply-pipe connect the high pressure water on pressurized cylinder and material port block head into Mouthful, there is high service solenoid valve on the water-supply-pipe between super-pressure accumulator and material port block head；On material block head Separately there is molded part inner cavity pressure relief drain mouth, pressure relief drain pipe, pressure relief drain Guan Shangyou pressure relief drain electricity are connected on pressure relief drain mouth Magnet valve, high service solenoid valve and pressure relief drain solenoid valve access electric controller.

2. a kind of hydraulic system that can be shortened interior high-pressure molding process cycle according to claim 1, it is characterized in that: in height Pressure sensor and high-pressure manometer are installed before pressing the valve of water supply electromagnetic valve and pressure relief drain solenoid valve.

3. a kind of hydraulic system that can be shortened interior high-pressure molding process cycle according to claim 1, it is characterized in that in height Press the high-voltage power supply entrance side of accumulator high-voltage end that high pressure check (non-return) valve, and external physics superpressure releasing pressure automatically valve are installed, with High service valve shares a pressure gauge and pressure sensor.

4. a kind of hydraulic system that can be shortened interior high-pressure molding process cycle according to claim 1, it is characterized in that super High pressure accumulator low-pressure end tail portion is connected to inflation/drain tap and an external pressure gauge and displacement sensor.

5. a kind of hydraulic system that can be shortened interior high-pressure molding process cycle according to claim 1, it is characterized in that: superelevation The inner chamber of cylinder block sectional area ratio of the low-pressure end and high-voltage end of pressing accumulator is 16:1.