CN204054552U - Two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop - Google Patents
Two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop Download PDFInfo
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- CN204054552U CN204054552U CN201420484026.3U CN201420484026U CN204054552U CN 204054552 U CN204054552 U CN 204054552U CN 201420484026 U CN201420484026 U CN 201420484026U CN 204054552 U CN204054552 U CN 204054552U
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- locked mode
- directional control
- control valve
- way directional
- hydraulic cylinder
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Abstract
The utility model discloses two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop, comprise locked mode hydraulic cylinder, pressurizing hydraulic cylinder, two position three way directional control valve, locked mode oil circuit bi-bit bi-pass reversal valve and locked mode oil circuit check valve, it is characterized in that: described pressure oil pipe is connected with the on the pressure side hydraulic fluid port P of three position four-way directional control valve by first branch's pressure oil pipe, and on the upside of the right-hand member of three position four-way directional control valve, hydraulic fluid port A is connected with the hydraulic fluid port of the large tank rodless cavity of pressurizing hydraulic cylinder; On the upside of the left end of three position four-way directional control valve, hydraulic fluid port B is communicated with the rod chamber of the small oil tank of pressurizing hydraulic cylinder by being communicated with oil pipe, meanwhile, on the upside of the left end of three position four-way directional control valve, hydraulic fluid port B is also communicated with the rodless cavity of the small oil tank of pressurizing hydraulic cylinder by second point of branch oil pipe.This loop, structure simplifies, easily operate, have normal pressure locked mode and high-voltage lock mould two functions, can realize locked mode, slow down again the damping of shocks in mould contact surface, reach the steady requirement of locked mode process initial stage by normal pressure locked mode.
Description
Technical field
The utility model relates to a kind of improvement of hydraulic high-pressure locked loop of injection machine, specifically a kind of two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop.
Background technology
Injection machine is the capital equipment realizing injection mo(u)lding, and hydraulic high-pressure locked loop is the key loop system of injection machine, and it ensure that the locking of mould effectively.At present, the hydraulic high-pressure locked loop used in two-plate injection machine, although there is multiple report, " two-template large-space fully hydraulic locking injection machine " and CN10258047A disclosed " die-locking oil path system of large-scale two-plate injection machine " disclosed in China Patent Publication No. CN101758605A, its structure includes locked mode hydraulic cylinder, pressurizing hydraulic cylinder, locked mode reversal valve, locked mode inserted valve, main, secondary reversal valve, check valve, main, secondary safety overflow valve and release inserted valve and the oil pipe be communicated with thereof, locked mode hydraulic cylinder is provided with 2-4, the locked mode reversal valve corresponding with it and time safety overflow valve also establish 2-4, a mouth of locked mode inserted valve exports with first of main reversing valve and is connected, another mouthful communicates with the rod chamber of four locked mode reversal valve P mouths and pressurizing hydraulic cylinder, four locked mode hydraulic cylinders are controlled by four locked mode reversal valves respectively, all check valve is established below four locked mode reversal valves, four locked mode hydraulic cylinder die sinking chambeies connect time safety overflow valve respectively, and the Mode-Locking Cavity of four locked mode hydraulic cylinders is connected with the A mouth of four check valves respectively, the B mouth intercommunication of four check valves, and communicate with the P mouth of main safety overflow valve and the oil-in of release inserted valve.This hydraulic high-pressure clamping apparatus, is applicable to the feature of two-plate injection machine structure, has the advantage that moving component inertia is little, fast response time, driving force are large.But also have the following disadvantages: one is complex structure, and operational sequence is loaded down with trivial details, action response speed is difficult to improve; Two is because locked mode cylinder diameter is usually subject to size restriction, and cause clamp force not enough, in order to improve clamp force, current method is exactly improve the oil liquid pressure of hydraulic system, this adds increased power consumption; Three is the functions without normal pressure locked mode; Four when being high-voltage lock moulds, and it is poor that power match is difficult to adjustment, shock resistance and process stability; Five is due to complex structure, and under discrete component fault rate certain condition, whole system reliability reduces.
Known by retrieving, have not yet to see and can realize locked mode, slow down again the impact in mould contact surface by normal pressure locked mode, reach the report in two plate hydraulic injection molding machine normal pressures that the locked mode process initial stage steadily requires, supercharging, high-voltage lock mould loop.
Utility model content
The purpose of this utility model is that providing a kind of not only has the advantage that moving component inertia is little, fast response time, driving force are large; and structure simplifies, easily operates, is swift in motion, has normal pressure locked mode and high-voltage lock mould two functions simultaneously; locked mode can be realized; slow down again the impact in mould contact surface by normal pressure locked mode, reach two plate hydraulic injection molding machine normal pressures that the locked mode process initial stage steadily requires, supercharging, high-voltage lock mould loop.
In order to reach above object, the technical scheme that the utility model adopts is: this two plates hydraulic injection molding machine normal pressure, supercharging, high-voltage lock mould loop, comprise locked mode hydraulic cylinder, pressurizing hydraulic cylinder, two position three way directional control valve, locked mode oil circuit bi-bit bi-pass reversal valve and locked mode oil circuit check valve, four in parallel of locked mode hydraulic cylinder, the oil inlet P of two position three way directional control valve connects with the pressure oil pipe being connected hydraulic oil pumping plant, and the upside hydraulic fluid port A of two position three way directional control valve is communicated with the rodless cavity of four locked mode hydraulic cylinders by corresponding oil pipe simultaneously; The hydraulic fluid port adapter of the small oil tank end of pressurizing hydraulic cylinder is communicated with the rod chamber of four locked mode hydraulic cylinders with locked mode oil circuit check valve by locked mode oil circuit bi-bit bi-pass reversal valve successively simultaneously, it is characterized in that: described pressure oil pipe is connected with the on the pressure side hydraulic fluid port P of three position four-way directional control valve by first branch's pressure oil pipe, and on the upside of the right-hand member of three position four-way directional control valve, hydraulic fluid port A is connected with the hydraulic fluid port of the large tank rodless cavity of pressurizing hydraulic cylinder; On the upside of the left end of three position four-way directional control valve, hydraulic fluid port B is communicated with the rod chamber of the small oil tank of pressurizing hydraulic cylinder by being communicated with oil pipe, simultaneously, on the upside of the left end of three position four-way directional control valve, hydraulic fluid port B is also communicated with the rodless cavity of the small oil tank of pressurizing hydraulic cylinder by second point of branch oil pipe, and the second point of branch oil pipe be connected between three position four-way directional control valve with pressurizing hydraulic cylinder is provided with normal pressure check valve; The pipeline of locked mode oil circuit check valve to a four locked mode hydraulic cylinder rod chamber is communicated with the unidirectional valve pocket P1 hydraulic fluid port of die sinking oil circuit bi-bit bi-pass reversal valve by the 3rd point of branch oil pipe, the return line of the unidirectional valve pocket of die sinking oil circuit bi-bit bi-pass reversal valve is provided with speed regulation throttle valve.
The utility model is also implemented by following measure: the oil return opening of the oil return inlet T of described two position three way directional control valve, the oil return inlet T of three position four-way directional control valve and speed regulation throttle valve all accesses in same fuel tank.
Described locked mode hydraulic cylinder, pressurizing hydraulic cylinder, two position three way directional control valve, locked mode oil circuit bi-bit bi-pass reversal valve, locked mode oil circuit check valve, three position four-way directional control valve, die sinking oil circuit bi-bit bi-pass reversal valve, speed regulation throttle valve and normal pressure check valve thereof are known accessory, therefore seldom state.
The beneficial effects of the utility model are: this two plates hydraulic injection molding machine normal pressure, supercharging, high-voltage lock mould loop; not only there is the advantage that moving component inertia is little, fast response time, driving force are large; and structure simplifies, easily operates, has normal pressure locked mode and high-voltage lock mould two functions simultaneously; locked mode can be realized; slow down again the damping of shocks in mould contact surface by normal pressure locked mode, reach the steady requirement of locked mode process initial stage.
Accompanying drawing explanation
Fig. 1 is Standard schematic front view of the present utility model.
In figure: 1, locked mode hydraulic cylinder; 2, pressurizing hydraulic cylinder; 3, two position three way directional control valve; 4, locked mode oil circuit bi-bit bi-pass reversal valve; 5, locked mode oil circuit check valve; 6, pressure oil pipe; 7, three position four-way directional control valve; 8, normal pressure check valve; 9, die sinking oil circuit bi-bit bi-pass reversal valve; 10, speed regulation throttle valve; 11, first branch's pressure oil pipe; 12, oil pipe is communicated with; 13, second point of branch oil pipe; 14, the 3rd point of branch oil pipe; 15, fuel tank.
Detailed description of the invention
The utility model is made with reference to Fig. 1.This two plates hydraulic injection molding machine normal pressure, supercharging, high-voltage lock mould loop, comprise locked mode hydraulic cylinder 1, pressurizing hydraulic cylinder 2, two position three way directional control valve 3, locked mode oil circuit bi-bit bi-pass reversal valve 4 and locked mode oil circuit check valve 5, four in parallel of locked mode hydraulic cylinder 1, the oil inlet P of two position three way directional control valve 3 connects with the pressure oil pipe 6 being connected hydraulic oil pumping plant, and the upside hydraulic fluid port A of two position three way directional control valve 3 is communicated with the rodless cavity of four locked mode hydraulic cylinders 1 by corresponding oil pipe simultaneously; The hydraulic fluid port adapter of the small oil tank end of pressurizing hydraulic cylinder 2 is communicated with the rod chamber of four locked mode hydraulic cylinders 1 with locked mode oil circuit check valve 5 by locked mode oil circuit bi-bit bi-pass reversal valve 4 successively simultaneously, it is characterized in that: described pressure oil pipe 6 is connected with the on the pressure side hydraulic fluid port P of three position four-way directional control valve 7 by first branch's pressure oil pipe 11, and on the upside of the right-hand member of three position four-way directional control valve 7, hydraulic fluid port A is connected with the hydraulic fluid port of the large tank rodless cavity of pressurizing hydraulic cylinder 2; On the upside of the left end of three position four-way directional control valve 7, hydraulic fluid port B is communicated with the rod chamber of the small oil tank of pressurizing hydraulic cylinder 2 by being communicated with oil pipe 12, simultaneously, on the upside of the left end of three position four-way directional control valve 7, hydraulic fluid port B is also communicated with the rodless cavity of the small oil tank of pressurizing hydraulic cylinder 2 by second point of branch oil pipe 13, and the second point of branch oil pipe 13 be connected between three position four-way directional control valve 7 with pressurizing hydraulic cylinder 2 is provided with normal pressure check valve 8; The pipeline of locked mode oil circuit check valve 5 to four locked mode hydraulic cylinder 1 rod chambers is communicated with the unidirectional valve pocket P1 hydraulic fluid port of die sinking oil circuit bi-bit bi-pass reversal valve 9 by the 3rd point of branch oil pipe 14, the return line of the unidirectional valve pocket of die sinking oil circuit bi-bit bi-pass reversal valve 9 is provided with speed regulation throttle valve 10.
As improvement of the present utility model: the oil return opening of the oil return inlet T of described two position three way directional control valve 3, the oil return inlet T of three position four-way directional control valve 7 and speed regulation throttle valve 10 all accesses in same fuel tank 15.
Described locked mode hydraulic cylinder 1, pressurizing hydraulic cylinder 2, two position three way directional control valve 3, locked mode oil circuit bi-bit bi-pass reversal valve 4, locked mode oil circuit check valve 5, three position four-way directional control valve 7, die sinking oil circuit bi-bit bi-pass reversal valve 9, speed regulation throttle valve 10 and normal pressure check valve 8 thereof are known accessory, therefore seldom state.
The stroke of described locked mode hydraulic cylinder 1 is shorter; generally be equal to or less than two times of injection machine pull bar comb shape separation; so in locked mode process; the fluid volume total amount of demand is very little; other hydraulic pressure executive item on high-voltage lock mould loop and injection machine shares a hydraulic power unit; do not need separately to be equipped with high pressure pumping station, pressurizing hydraulic cylinder does not need to arrange service tank simultaneously, saves device fabrication expense and operating cost.
When using the utility model, the injection machine course of work is locked mode after first matched moulds, at the end of matched moulds, the left side electromagnet of three position four-way directional control valve 7 obtains electric cut-in operation state, the pressure oil liquid that hydraulic power unit provides inputs the pressure entrance P of three position four-way directional control valve 7 by first point of branch oil pipe 11 of pressure oil pipe 6, again by entering in the rod chamber of the large tank of pressurizing hydraulic cylinder 2 at three position four-way directional control valve 7 normal pressure side oil-out B, oil pipe 12, promoting piston and moving to right, for supercharging is ready; Meanwhile, fluid injects in the small oil tank rodless cavity of pressurizing hydraulic cylinder 2 by second point of branch oil pipe 13 on connection oil pipe 12 and normal pressure check valve 8 thereof again, also promotes piston and moves to right, and common is that supercharging is ready; After the piston of pressurizing hydraulic cylinder 2 moves to extreme right position stopping, normal pressure fluid in the small oil tank rodless cavity of pressurizing hydraulic cylinder 2 is inputted in the rod chamber of four locked mode hydraulic cylinders 1 by locked mode oil circuit bi-bit bi-pass reversal valve 4 and locked mode oil circuit check valve 5 more simultaneously, promote locked mode hydraulic cylinder 1 piston to move, realize normal pressure locked mode process.After normal pressure locked mode process terminates, the high-pressure side magnetic valve of three position four-way directional control valve 7 obtains electric, the right position cut-in operation state of three position four-way directional control valve 7, high-voltage lock mould starts, the pressure oil liquid that hydraulic power unit provides inputs the on the pressure side hydraulic fluid port P of three position four-way directional control valve 7 by first branch's pressure oil pipe 11 of pressure oil pipe 6, and enter in the large tank rodless cavity of pressurizing hydraulic cylinder 2 by hydraulic fluid port A on the upside of the right-hand member of three position four-way directional control valve 7, promotion piston moves to left, because the area ratio of the large and small piston of pressurizing hydraulic cylinder 2 is greater than 1, so realize pressurization; Meanwhile, the hydraulic oil in the small oil tank of pressurizing hydraulic cylinder 2 is by locked mode oil circuit bi-bit bi-pass reversal valve 4 and locked mode oil circuit check valve 5 thereof, and chamber asked by the bar that has simultaneously entering four locked mode hydraulic cylinders 1, realizes high-voltage lock mould process.In injection machine high-pressure mold locking phase, normal pressure check valve 8 is in closed condition.The described high pressure of pressurizing hydraulic cylinder 2 determines with the ratio of the pressure ratio of normal pressure by the large and small piston area of hydraulic pressure booster cylinder 2.
Injection machine completes injection when needing die sinking, three position four-way directional control valve 7 is in meta, die sinking oil circuit bi-bit bi-pass reversal valve 9, locked mode oil circuit bi-bit bi-pass reversal valve 4 and two position three way directional control valve 3 electromagnet energized action, four locked mode hydraulic cylinder 1 rodless cavities enter hydraulic oil, piston rod in four locked mode hydraulic cylinders 1 stretches out simultaneously, and the fluid of rod chamber is passed back in fuel tank 15 by die sinking oil circuit bi-bit bi-pass reversal valve 9 and speed regulation throttle valve 10.Due to the throttle grverning effect of speed regulation throttle valve 10, have the pressure first discharging locked mode hydraulic cylinder 1 rod chamber, alleviate impact and noise that high-voltage lock mould cavity pressure discharges suddenly generation, the setting of speed regulation throttle valve 10 can require to determine according to injection machine operation stability.Described normal pressure locked mode and high-voltage lock mould are respectively used to locked mode initial stage and high-voltage lock mould packing stage; When locked mode hydraulic cylinder 1 die sinking campaign, discharge the high pressure chest pressure of four locked mode hydraulic cylinders 1 simultaneously.
Claims (2)
1. two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop, comprise locked mode hydraulic cylinder (1), pressurizing hydraulic cylinder (2), two position three way directional control valve (3), locked mode oil circuit bi-bit bi-pass reversal valve (4) and locked mode oil circuit check valve (5), four in parallel of locked mode hydraulic cylinder (1), the oil inlet P of two position three way directional control valve (3) connects with the pressure oil pipe (6) being connected hydraulic oil pumping plant, and the upside hydraulic fluid port A of two position three way directional control valve (3) is communicated with the rodless cavity of four locked mode hydraulic cylinders (1) by corresponding oil pipe simultaneously; The hydraulic fluid port adapter of the small oil tank end of pressurizing hydraulic cylinder (2) is communicated with the rod chamber of four locked mode hydraulic cylinders (1) with locked mode oil circuit check valve (5) by locked mode oil circuit bi-bit bi-pass reversal valve (4) successively simultaneously, it is characterized in that: described pressure oil pipe (6) is connected with the on the pressure side hydraulic fluid port P of three position four-way directional control valve (7) by first branch's pressure oil pipe (11), and on the upside of the right-hand member of three position four-way directional control valve (7), hydraulic fluid port A is connected with the hydraulic fluid port of the large tank rodless cavity of pressurizing hydraulic cylinder (2); On the upside of the left end of three position four-way directional control valve (7), hydraulic fluid port B is communicated with the rod chamber of the small oil tank of pressurizing hydraulic cylinder (2) by being communicated with oil pipe (12), simultaneously, on the upside of the left end of three position four-way directional control valve (7), hydraulic fluid port B is also communicated with the rodless cavity of the small oil tank of pressurizing hydraulic cylinder (2) by second point of branch oil pipe (13), and the second point of branch oil pipe (13) be connected between three position four-way directional control valve (7) with pressurizing hydraulic cylinder (2) is provided with normal pressure check valve (8); The pipeline of locked mode oil circuit check valve (5) to four locked mode hydraulic cylinder (1) rod chambers is communicated with the unidirectional valve pocket P1 hydraulic fluid port of die sinking oil circuit bi-bit bi-pass reversal valve (9) by the 3rd point of branch oil pipe (14), the return line of the unidirectional valve pocket of die sinking oil circuit bi-bit bi-pass reversal valve (9) is provided with speed regulation throttle valve (10).
2. two plate hydraulic injection molding machine normal pressures according to claim 1, supercharging, high-voltage lock mould loop, is characterized in that: the oil return opening of the oil return inlet T of described two position three way directional control valve (3), the oil return inlet T of three position four-way directional control valve (7) and speed regulation throttle valve (10) all accesses in same fuel tank (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484026.3U CN204054552U (en) | 2014-08-27 | 2014-08-27 | Two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484026.3U CN204054552U (en) | 2014-08-27 | 2014-08-27 | Two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop |
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| Publication Number | Publication Date |
|---|---|
| CN204054552U true CN204054552U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484026.3U Expired - Fee Related CN204054552U (en) | 2014-08-27 | 2014-08-27 | Two plate hydraulic injection molding machine normal pressures, supercharging, high-voltage lock mould loop |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175507A (en) * | 2014-08-27 | 2014-12-03 | 山东胜岳精密机械有限公司 | Normal-pressure, pressurizing and high-pressure die locking loop of two-plate hydraulic injection molding machine |
| CN109838424A (en) * | 2017-11-27 | 2019-06-04 | 江苏华澳橡胶机械有限公司 | A kind of high-precision locked mode pressure hydraulic control circuit and control method |
| CN115071082A (en) * | 2022-04-29 | 2022-09-20 | 宁波长飞亚塑料机械制造有限公司 | Micro-mold opening system for realizing correlation injection molding machine and control method thereof |
-
2014
- 2014-08-27 CN CN201420484026.3U patent/CN204054552U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175507A (en) * | 2014-08-27 | 2014-12-03 | 山东胜岳精密机械有限公司 | Normal-pressure, pressurizing and high-pressure die locking loop of two-plate hydraulic injection molding machine |
| CN109838424A (en) * | 2017-11-27 | 2019-06-04 | 江苏华澳橡胶机械有限公司 | A kind of high-precision locked mode pressure hydraulic control circuit and control method |
| CN115071082A (en) * | 2022-04-29 | 2022-09-20 | 宁波长飞亚塑料机械制造有限公司 | Micro-mold opening system for realizing correlation injection molding machine and control method thereof |
| CN115071082B (en) * | 2022-04-29 | 2023-09-19 | 宁波长飞亚塑料机械制造有限公司 | Micro-die opening system for realizing correlation injection molding machine and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20160827 |