CN201621116U - Multi-system hydraulic circuit for servo motor - Google Patents
Multi-system hydraulic circuit for servo motor Download PDFInfo
- Publication number
- CN201621116U CN201621116U CN 200920201824 CN200920201824U CN201621116U CN 201621116 U CN201621116 U CN 201621116U CN 200920201824 CN200920201824 CN 200920201824 CN 200920201824 U CN200920201824 U CN 200920201824U CN 201621116 U CN201621116 U CN 201621116U
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- hydraulic circuit
- oil
- directional control
- valve
- control valve
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a multi-system hydraulic circuit for a servo motor, which comprises a preformed hydraulic circuit, a mold opening hydraulic circuit and an ejection hydraulic circuit. Three-position four-way reversing valves are respectively arranged in the three circuits; a servo motor in the preformed hydraulic circuit is connected with an oil pump; the oil pump is respectively connected with a plug-in valve and the three-position four-way reversing valves; an electromagnet is arranged on the plug-in valve; the plug-in valve is connected with a hydraulic motor; electromagnets are arranged on the three-position four-way reversing valves; the three-position four-way reversing valves are connected with an injection oil cylinder; servo motors in the mold opening hydraulic circuit and the ejection hydraulic circuit are connected with the oil pump; the oil pump is respectively connected with a plug-in type hydraulic control one-way valve and the three-position four-way reversing valves; the electromagnets are arranged on the three-position four-way reversing valves; the three-position four-way reversing valves are connected with a mold opening oil cylinder; an electromagnet is arranged on the plug-in type hydraulic control one-way valve; and the plug-in type hydraulic control one-way valve is connected with the three-position four-way reversing valve in the preformed hydraulic circuit. The utility model effectively shortens the forming period of products and improves the production efficiency.
Description
Technical field
The utility model relates to a kind of oil hydraulic circuit, is specifically related to a kind of actuating motor multisystem oil hydraulic circuit, is applicable to that a plurality of synchronous servo motors drive the plastic-injection moulding machine of oil pump.
Background technique
Conventional plastic-injection moulding machine actuation cycle is as shown below:
In whole actuation cycle process, the load and the speed of system have nothing in common with each other, and adopt the oil hydraulic circuit of high performance synchronous driven by servomotor oil pump, and the output power of actuating motor can change with the variation of load, can effectively save the energy.But development along with the plastic-injection moulding machine of actuating motor control, for the speed production cycle, enhance productivity, injection machine requires a plurality of actions to carry out synchronously sometimes, needing this moment a plurality of synchronous servo motors to drive oil pump simultaneously realizes, but conventional hydraulic control system all is to control in order, can not satisfy the requirement of synchronization motion.
The model utility content
Technical problem to be solved in the utility model is to overcome deficiency of the prior art and a kind of product molding cycle time of effectively shortening, the actuating motor multisystem oil hydraulic circuit of enhancing productivity are provided.
The technical scheme in the invention for solving the above technical problem is: this actuating motor multisystem oil hydraulic circuit, comprise the preformed oil hydraulic circuit, die sinking oil hydraulic circuit and ejecting hydraulic circuit, described preformed oil hydraulic circuit, include actuating motor in die sinking oil hydraulic circuit and the ejecting hydraulic circuit, oil pump, pressure transducer, pressure gauge, relief valve and oil purifier, also be provided with air-strainer in the whole actuating motor multisystem oil hydraulic circuit, liquid level liquid thermometer and oil cooler, its characteristics are: described preformed oil hydraulic circuit, also be provided with three position four-way directional control valve in die sinking oil hydraulic circuit and the ejecting hydraulic circuit respectively, actuating motor is connected with oil pump in the preformed oil hydraulic circuit, oil pump is connected with cartridge valve and three position four-way directional control valve respectively, cartridge valve is provided with electromagnet, cartridge valve is connected with oil hydraulic motor, three position four-way directional control valve is provided with electromagnet, and three position four-way directional control valve is connected with injection cylinder; Actuating motor is connected with oil pump in the die sinking oil hydraulic circuit, oil pump is connected with three position four-way directional control valve with the plug-in type Pilot operated check valve respectively, three position four-way directional control valve is provided with electromagnet, three position four-way directional control valve is connected with the die sinking oil cylinder, the plug-in type Pilot operated check valve is provided with electromagnet, and the plug-in type Pilot operated check valve is connected with three position four-way directional control valve in the preformed oil hydraulic circuit; Actuating motor in the ejecting hydraulic circuit is connected with oil pump, oil pump is connected with three position four-way directional control valve with the plug-in type Pilot operated check valve respectively, three position four-way directional control valve is provided with electromagnet, three position four-way directional control valve with eject oil cylinder and be connected, the plug-in type Pilot operated check valve is provided with electromagnet, and the plug-in type Pilot operated check valve is connected with three position four-way directional control valve in the preformed oil hydraulic circuit.
The utility model is applied in the oil hydraulic circuit of a plurality of synchronous servo motors driving oil pumps, can realize that injection machine partly moves and carry out synchronously, guaranteeing under the energy-conservation situation, with the plastic-injection moulding machine of a plurality of driven by servomotor oil pumps of routine to comparing, can effectively shorten product molding cycle time, enhance productivity.Adopt the effect of three position four-way directional control valve: when the two ends electromagnet all cut off the power supply, spool mediated, and P, A, each oil pocket of B, T are not connected.When electromagnet S1 gets electricly, the suction-combining force of electromagnet armature and magnetic core promotes spool and is moved to the left, and P and A are communicated, and B and T communicate, and P3 fluid enters and ejects oil cylinder CY1 rodless cavity, and the oil cylinder piston bar moves right, and oil cylinder is done and ejected action.After the electromagnet outage, the effect of the limit Returnning spring that keeps left can make spool get back to the meta position, the sealing of four oil pockets, oil cylinder stop motion.When electromagnet S2 gets electricly, the suction-combining force of electromagnet armature and magnetic core promotes spool and moves right, and P and B are communicated with, and A and T are communicated with, and P3 fluid enters and ejects oil cylinder CY1 rod chamber, and the oil cylinder piston bar is moved to the left, and oil cylinder is done the top deactuate and done.After the electromagnet outage, get back to initial meta function at the effect lower valve core of spring force.Die sinking in like manner, matched moulds, injection, injection seat retreat four actions respectively by S3, S4, S5, S6 control.When doing action of injection, P1, P2, P3 loop are converged together through V3 and are entered injection cylinder CY3, because each hydraulic fluid port disconnects during the meta of three position four-way directional control valve, V1, V2 disconnect, and CY1, CY2 oil cylinder position are constant, not influenced by other actions.
The utility model can allow the preformed oil hydraulic circuit realize the preformed action separately, allows the die sinking oil hydraulic circuit realize the die sinking action separately simultaneously, and ejecting hydraulic circuit realizes ejecting action simultaneously separately.Compare with routine, whole actuation cycle of the present utility model also can be achieved as follows the actuation cycle shown in the figure except that the everything order that can realize conventional actuation cycle:
The fluid in three loops does not disturb mutually, and flow pressure has nothing in common with each other, and this system's partable, and preformed oil hydraulic circuit, die sinking oil hydraulic circuit and ejecting hydraulic circuit can merge when the action of injection working stage of high flow capacity, realizes working at high speed.Because action the time is carried out, effectively shorten product molding cycle time, enhance productivity.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Embodiment
In conjunction with Fig. 1, the enforcement of the utility model multi-servomotor energy-saving hydraulic circuit is further described: actuating motor EM1, EM2, EM3, oil pump PUMP1, PUMP2, PUMP3, plug-in type Pilot operated check valve V49, V50, pressure gauge V39, relief valve (safety valve) V47, V48, V52, pressure transducer V53, V54, V55, three position four-way directional control valve V1, V2, V3, cartridge valve V6, oil purifier V35, air-strainer V36, liquid level liquid thermometer V37, oil cooler V38.
The utility model comprises preformed oil hydraulic circuit I, die sinking oil hydraulic circuit II and ejecting hydraulic circuit III, oil pump PUMP1 among the preformed oil hydraulic circuit I is connected with actuating motor EM1, oil pump PUMP1 oil inlet end is provided with oil purifier V35, and the setting of oil pump PUMP1 oil outlet end is respectively arranged with pressure transducer V53, pressure gauge V39 and relief valve V52.Oil pump oil pump PUMP1 is connected with cartridge valve V6 and three position four-way directional control valve V3 respectively, cartridge valve V6 is provided with electromagnet S11, cartridge valve V6 is connected with oil hydraulic motor M, and three position four-way directional control valve V3 is provided with electromagnet S5, S6, and three position four-way directional control valve V3 is connected with injection cylinder CY3.
Oil pump PUMP2 among the die sinking oil hydraulic circuit II is connected with actuating motor EM2, and oil pump PUMP2 oil inlet end is provided with oil purifier V35, and the setting of oil pump PUMP2 oil outlet end is respectively arranged with pressure transducer V54, pressure gauge V39 and relief valve V48.Oil pump PUMP2 is connected with three position four-way directional control valve V2 with plug-in type Pilot operated check valve V50 respectively, three position four-way directional control valve V2 is provided with electromagnet S3, S4, three position four-way directional control valve V2 is connected with die sinking oil cylinder CY2, plug-in type Pilot operated check valve V50 is provided with electromagnet S50, and plug-in type Pilot operated check valve V50 is connected with three position four-way directional control valve V3 among the preformed oil hydraulic circuit I.
Oil pump PUMP3 among the ejecting hydraulic circuit III is connected with actuating motor EM3, and oil pump PUMP3 oil inlet end is provided with oil purifier V35, and the setting of oil pump PUMP3 oil outlet end is respectively arranged with pressure transducer V55, pressure gauge V39 and relief valve V47.Oil pump PUMP3 is connected with three position four-way directional control valve V1 with plug-in type Pilot operated check valve V49 respectively, three position four-way directional control valve V1 is provided with electromagnet S1, S2, three position four-way directional control valve V1 with eject oil cylinder CY1 and be connected, plug-in type Pilot operated check valve V49 is provided with electromagnet S49, and plug-in type Pilot operated check valve V49 is connected with three position four-way directional control valve V3 among the preformed oil hydraulic circuit I.
Also be provided with air-strainer V36, liquid level liquid thermometer V37 and oil cooler V38 in the whole actuating motor multisystem oil hydraulic circuit, its Placement is conventional the connection.
In the The injection moulding machine preforms stage, drive oil pump PUMP1 to hydraulic injection molding machine system fuel feeding by actuating motor EM1, electromagnet S11 gets, cartridge valve V6 lifts, to the circulation of A chamber, the fluid among the oil pump PUMP1 enters oil hydraulic motor M to hydraulic oil from the B chamber, makes oil hydraulic motor M rotation carry out the preformed action.
Simultaneously because the controlled oil pressure of plug-in type Pilot operated check valve V50 spool is lived, and spool is closed, A chamber, B chamber are obstructed, and oil pump PUMP2 fluid can be walked an other loop.Electromagnet S4 gets electricly as this moment, and fluid among the oil pump PUMP2 enters die sinking oil cylinder CY2 through three position four-way directional control valve V2, realizes the die sinking action.
Simultaneously because the controlled oil pressure of plug-in type Pilot operated check valve V49 spool is lived, and spool is closed, A chamber, B chamber are obstructed, and oil pump PUMP3 fluid can be walked an other loop.As doing simultaneously and eject action this moment, then electromagnet S1 gets electricly, and the fluid among the oil pump PUMP3 enters through three position four-way directional control valve V1 and ejects oil cylinder CY1, realizes ejecting action.
The speed of each action is by the rotational speed regulation control to each actuating motor EM1, EM2, EM3, pressure is controlled by each pressure transducer V53, V54, V55 feedback, because fluid does not disturb mutually, flow pressure is different, action can be carried out simultaneously, effectively shorten product molding cycle time, enhance productivity.
When doing action of injection, electromagnet S49, S50 get, plug-in type Pilot operated check valve V49, V50 spool lift, circulate to the B chamber in the A chamber, preformed oil hydraulic circuit I, die sinking oil hydraulic circuit II and ejecting hydraulic circuit III can converge together at this moment, it is electric to allow electromagnet S6 get simultaneously, and fluid enters injection cylinder CY3 through three position four-way directional control valve V3 together, realizes high speed injection.
Claims (1)
1. actuating motor multisystem oil hydraulic circuit, comprise the preformed oil hydraulic circuit, die sinking oil hydraulic circuit and ejecting hydraulic circuit, described preformed oil hydraulic circuit, include actuating motor in die sinking oil hydraulic circuit and the ejecting hydraulic circuit, oil pump, pressure transducer, pressure gauge, relief valve and oil purifier, also be provided with air-strainer in the whole actuating motor multisystem oil hydraulic circuit, liquid level liquid thermometer and oil cooler, it is characterized in that: described preformed oil hydraulic circuit, also be provided with three position four-way directional control valve in die sinking oil hydraulic circuit and the ejecting hydraulic circuit respectively, actuating motor is connected with oil pump in the described preformed oil hydraulic circuit, oil pump is connected with cartridge valve and three position four-way directional control valve respectively, cartridge valve is provided with electromagnet, cartridge valve is connected with oil hydraulic motor, three position four-way directional control valve is provided with electromagnet, and three position four-way directional control valve is connected with injection cylinder; Actuating motor is connected with oil pump in the die sinking oil hydraulic circuit, oil pump is connected with three position four-way directional control valve with the plug-in type Pilot operated check valve respectively, three position four-way directional control valve is provided with electromagnet, three position four-way directional control valve is connected with the die sinking oil cylinder, the plug-in type Pilot operated check valve is provided with electromagnet, and the plug-in type Pilot operated check valve is connected with three position four-way directional control valve in the preformed oil hydraulic circuit; Actuating motor in the ejecting hydraulic circuit is connected with oil pump, oil pump is connected with three position four-way directional control valve with the plug-in type Pilot operated check valve respectively, three position four-way directional control valve is provided with electromagnet, three position four-way directional control valve with eject oil cylinder and be connected, the plug-in type Pilot operated check valve is provided with electromagnet, and the plug-in type Pilot operated check valve is connected with three position four-way directional control valve in the preformed oil hydraulic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920201824 CN201621116U (en) | 2009-12-07 | 2009-12-07 | Multi-system hydraulic circuit for servo motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920201824 CN201621116U (en) | 2009-12-07 | 2009-12-07 | Multi-system hydraulic circuit for servo motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621116U true CN201621116U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920201824 Expired - Lifetime CN201621116U (en) | 2009-12-07 | 2009-12-07 | Multi-system hydraulic circuit for servo motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN201621116U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582054A (en) * | 2011-01-12 | 2012-07-18 | 广州博创机械有限公司 | Power system of large-sized servo injection molding machine |
| CN103287998A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Anchor windlass pump station control system |
| CN104154064A (en) * | 2014-08-06 | 2014-11-19 | 昆明理工大学 | Hydraulic control loop achieving cyclic loading |
| CN109366915A (en) * | 2018-09-13 | 2019-02-22 | 格力电器（郑州）有限公司 | Oil way conversion device and oil way conversion method |
| CN112709730A (en) * | 2021-01-06 | 2021-04-27 | 武汉船用机械有限责任公司 | Closed hydraulic control system of slewing mechanism and application method thereof |
-
2009
- 2009-12-07 CN CN 200920201824 patent/CN201621116U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582054A (en) * | 2011-01-12 | 2012-07-18 | 广州博创机械有限公司 | Power system of large-sized servo injection molding machine |
| CN103287998A (en) * | 2013-05-31 | 2013-09-11 | 武汉船用机械有限责任公司 | Anchor windlass pump station control system |
| CN103287998B (en) * | 2013-05-31 | 2016-04-13 | 武汉船用机械有限责任公司 | A kind of anchor winch pumping station controlling system |
| CN104154064A (en) * | 2014-08-06 | 2014-11-19 | 昆明理工大学 | Hydraulic control loop achieving cyclic loading |
| CN109366915A (en) * | 2018-09-13 | 2019-02-22 | 格力电器（郑州）有限公司 | Oil way conversion device and oil way conversion method |
| CN109366915B (en) * | 2018-09-13 | 2021-01-15 | 格力电器（郑州）有限公司 | Oil way conversion device and oil way conversion method |
| CN112709730A (en) * | 2021-01-06 | 2021-04-27 | 武汉船用机械有限责任公司 | Closed hydraulic control system of slewing mechanism and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20160307 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |