CN105538626A - Injection molding machine micro mould opening system and oil way control method thereof - Google Patents

Injection molding machine micro mould opening system and oil way control method thereof Download PDF

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Publication number
CN105538626A
CN105538626A CN201610050097.6A CN201610050097A CN105538626A CN 105538626 A CN105538626 A CN 105538626A CN 201610050097 A CN201610050097 A CN 201610050097A CN 105538626 A CN105538626 A CN 105538626A
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China
Prior art keywords
valve
oil
crack
locking
fuel tank
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Granted
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CN201610050097.6A
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Chinese (zh)
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CN105538626B (en
Inventor
阮剑波
高世权
郑海伟
胡安驰
方钱
周东海
钱梁儿
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Haitian Plastics Machinery Group
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Haitian Plastics Machinery Group
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Priority to CN201610050097.6A priority Critical patent/CN105538626B/en
Publication of CN105538626A publication Critical patent/CN105538626A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/67—Mould opening, closing or clamping devices hydraulic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors

Abstract

The invention provides an injection molding machine micro mould opening system and belongs to the technical field of hydraulic transmission, aiming at solving the problem of the existing injection molding machines that a mould opening effect is non-ideal. The injection molding machine micro mould opening system comprises an oil tank used for storing oil, an oil inlet line communicating with the oil tank and used for delivering oil, multiple mould locking oil cylinders which respectively communicate with the oil inlet line and the oil tank, and micro opening units in one-to-one correspondence with the mould locking oil cylinders, wherein the micro opening units communicate with the oil inlet line and drive the corresponding mould locking oil cylinders to carry out micro mould opening. The injection molding machine micro mould system and the oil way control method have the advantages of being reasonable in design and high in mould opening precision.

Description

A kind of crack modular system of injection machine and oil circuit control method thereof
Technical field
The invention belongs to hydraulic transmission technology field, relate to the crack modular system of a kind of injection machine and oil circuit control method thereof.
Background technology
Expanded material also claims blowing agent, refer to and can produce at material internal gasifier the material that bubble makes it to become the foaming of porous mass, as manufactured foamed plastics, foam rubber, foamed resin, foamed product etc., expanded material can be divided into chemical blowing material, physical foaming material and surfactant three major types.
Expanded material has the performances such as density is low, quality is light, intensity is high, can carry out in addition cushioning, shock-absorbing, insulation etc., be widely used in the industries such as electronics, track traffic, Aero-Space, building energy conservation.
The product made due to expanded material generally passes through mold injection molding, when carrying out product injection mo(u)lding, because expanded material there will be a large amount of trickle foam, add overall volume, and the mold cavity volume for shaped article after common mould matched moulds immobilizes, foaming material shaped requirement cannot be met.
Therefore, need to design a kind of system still can carrying out die sinking again after mould matched moulds, but the precision controlling of die sinking again of the prior art is poor, die sinking effect is undesirable, is unfavorable for the production of product.
In sum, for solving the structural deficiency of existing injection machine, need the crack modular system of a kind of injection machine reasonable in design, that die sinking precision is high of design.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the crack modular system of a kind of injection machine reasonable in design, that die sinking precision is high.
Object of the present invention realizes by following technical proposal: the crack modular system of a kind of injection machine, comprising:
Fuel tank, for storing fluid;
Oil-feed oil circuit, with fuel tank UNICOM and for delivering oil;
Mode-locking oil cylinder, be set to multiple and each Mode-locking oil cylinder respectively with oil-feed oil circuit, fuel tank UNICOM;
Crack unit, with Mode-locking oil cylinder one_to_one corresponding, described crack unit also drives corresponding Mode-locking oil cylinder to carry out crack mould with oil-feed oil circuit UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, each crack unit includes the auxiliary cylinder of mutual UNICOM, servo valve and auxiliary cylinder are connected with corresponding Mode-locking oil cylinder, described servo valve respectively with oil-feed oil circuit, fuel tank UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, described Mode-locking oil cylinder there is a locking piston bar and locking piston bar by Mode-locking oil cylinder shared oil sap cavity and without oil pocket, each fluid chamber respectively with oil-feed oil circuit, fuel tank UNICOM.
In the above-mentioned crack modular system of a kind of injection machine; described auxiliary cylinder has an auxiliary piston rod and auxiliary cylinder is divided into rod chamber and rodless cavity by auxiliary piston rod; described auxiliary piston rod part stretches into and corresponding to be connected with locking piston bar without oil pocket, described servo valve respectively with corresponding rod chamber, rodless cavity UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, described rod chamber is by the first overflow valve and fuel tank UNICOM, and described rodless cavity is by the second overflow valve and fuel tank UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, each fluid chamber by the first inserted valve and oil-feed oil circuit UNICOM, and is connected with solenoid directional control valve on the first inserted valve, and described solenoid directional control valve is by shuttle valve and the first inserted valve UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, each fluid chamber by the second inserted valve and fuel tank UNICOM, and is connected with the second Solenoid ball valve, described second Solenoid ball valve, the second inserted valve and fuel tank three UNICOM on the second inserted valve.
In the above-mentioned crack modular system of a kind of injection machine, between fluid chamber and fuel tank, be provided with the first Solenoid ball valve, and the first Solenoid ball valve respectively with fuel tank, each fluid chamber UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, between fluid chamber and fuel tank, be also provided with the 3rd overflow valve, and the 3rd overflow valve respectively with fuel tank, each fluid chamber UNICOM.
In the above-mentioned crack modular system of a kind of injection machine, Mode-locking oil cylinder is provided with pressure sensor and pressure sensor and each fluid chamber UNICOM, pressure sensor is also connected with Pressure gauge.
An oil circuit control method for the crack modular system of injection machine, concrete steps are as follows:
Closing solenoid directional control valve makes the first inserted valve be in opening, open each servo valve side oil circuit, fluid enters each fluid chamber and promotes corresponding locking piston bar move inward through oil-feed oil circuit, the first inserted valve successively, locking piston bar drives corresponding auxiliary piston rod to move together, and the fluid in rodless cavity flows back to fuel tank by corresponding servo valve;
Opening solenoid directional control valve makes the first inserted valve be in closed condition, and drive servo valve to get back to meta, now each oil circuit is in packing state, and both locking piston bar and auxiliary piston rod position remains unchanged;
Open each servo valve opposite side oil circuit, opening the second Solenoid ball valve makes the second inserted valve be in opening, fluid enters corresponding rodless cavity through oil-feed oil circuit, each servo valve and promotes corresponding auxiliary piston rod outwards movement successively, auxiliary piston rod drives corresponding locking piston bar to move together, fluid in rod chamber flows back to fuel tank by corresponding servo valve, and the fluid in each fluid chamber flows back to fuel tank through the second inserted valve;
Closing the second Solenoid ball valve makes the second inserted valve be in closed condition, and drive servo valve to get back to meta, now each oil circuit is in packing state, and both locking piston bar and auxiliary piston rod position remains unchanged.
The step of each fluid chamber being carried out to pressure release is also comprised between step 2 and step 3:
Open the first Solenoid ball valve, each fluid chamber first Solenoid ball valve carries out pressure release.
Compared with prior art, the present invention is reasonable in design, adopts the setting of crack unit, auxiliary cylinder is particularly adopted to drive the structural design of Mode-locking oil cylinder, the injection moulding quality of expanded material product can be significantly improved, reduce the substandard products in injection moulding process, reach good injection moulding effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
In figure, 10, fuel tank; 20, oil-feed oil circuit; 30, Mode-locking oil cylinder; 31, fluid chamber; 32, without oil pocket; 33, locking piston bar; 40, auxiliary cylinder; 41, rod chamber; 42, rodless cavity; 43, auxiliary piston rod; 50, servo valve; 61, the first inserted valve; 62, the second inserted valve; 71, the first Solenoid ball valve; 72, the second Solenoid ball valve; 73, solenoid directional control valve; 74, shuttle valve; 81, the first overflow valve; 82, the second overflow valve; 83, the 3rd overflow valve; 91, pressure sensor; 92, Pressure gauge.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, the crack modular system of this injection machine comprises:
Fuel tank 10, for storing fluid;
Oil-feed oil circuit 20, with fuel tank 10 UNICOM and for delivering oil;
Mode-locking oil cylinder 30, be set to multiple and each Mode-locking oil cylinder 30 respectively with oil-feed oil circuit 20, fuel tank 10 UNICOM;
Crack unit, with Mode-locking oil cylinder 30 one_to_one corresponding, crack unit also drives corresponding Mode-locking oil cylinder 30 to carry out crack mould with oil-feed oil circuit 20 UNICOM.
The product made due to expanded material is when carrying out product injection mo(u)lding, expanded material there will be a large amount of trickle foam, add the volume of integral product, and the mold cavity volume for shaped article after common mould matched moulds immobilizes, foaming material shaped requirement cannot be met.
Therefore, need to design a kind of system still can carrying out die sinking again after mould matched moulds, but the precision controlling of die sinking again of the prior art is poor, die sinking effect is undesirable, often causes the Quality Down of product, is unfavorable for the production of product.
For this reason, the present invention devises the crack modular system of a kind of injection machine for injection foaming material, by the setting of crack unit, accurately controls the crack degree of Mode-locking oil cylinder 30, thus carry out crack in guarantee that the quality of product is unaffected, reach desirable die sinking precision.
Preferably, each crack unit includes the auxiliary cylinder 40 of mutual UNICOM, servo valve 50 and auxiliary cylinder 40 are connected with corresponding Mode-locking oil cylinder 30, servo valve 50 respectively with oil-feed oil circuit 20, fuel tank 10 UNICOM.
Particularly, drive the structural design of Mode-locking oil cylinder 30 to carry out crack die worker's work to Mode-locking oil cylinder 30 by auxiliary cylinder 40, adopt servo valve 50 to control the fluid flowing of auxiliary cylinder 40 simultaneously, guarantee crack mould everything goes well with your work to carry out.
Wherein, servo valve 50 is high frequency sound servo valves, responds fast, highly sensitive, can oil pressure in oil circuit control, particularly when carrying out crack mould, servo valve 50 can according to the degree of oil pressure cntrol die sinking, thus accurately control crack mould, ensure produce the quality of product.
Preferably, Mode-locking oil cylinder 30 there is a locking piston bar 33 and locking piston bar 33 by Mode-locking oil cylinder 30 shared oil sap cavity 31 and without oil pocket 32, each fluid chamber 31 respectively with oil-feed oil circuit 20, fuel tank 10 UNICOM.
Further preferably; auxiliary cylinder 40 has an auxiliary piston rod 43 and auxiliary cylinder 40 is divided into rod chamber 41 and rodless cavity 42 by auxiliary piston rod 43; auxiliary piston rod 43 part stretches into and corresponding to be connected with locking piston bar 33 without oil pocket 32, servo valve 50 respectively with corresponding rod chamber 41, rodless cavity 42 UNICOM.
More specifically, the auxiliary piston rod 43 of auxiliary cylinder 40 is directly connected with locking piston bar 33, fluid by when driving auxiliary cylinder 40 to work by auxiliary piston rod 43 directly drive Mode-locking oil cylinder 30 action together; Otherwise locking piston bar 33 can drive auxiliary cylinder 40 action together equally when fluid drives Mode-locking oil cylinder 30 action.
Wherein fluid chamber 31, rod chamber 41 and rodless cavity 42 all have fluid to flow in the course of the work, and do not have fluid to flow in the course of the work without oil pocket 32, only have air carrying out compressing and discharging.
The rod chamber 41 of auxiliary cylinder 40, rodless cavity 42 respectively with servo valve 50 UNICOM, when carrying out high-voltage lock mould, the fluid in rodless cavity 42 flows back to fuel tank 10 through servo valve 50, and when carrying out crack mould, the fluid in rod chamber 41 flows back to fuel tank 10 through servo valve 50.
Preferably, rod chamber 41 is by the first overflow valve 81 and fuel tank 10 UNICOM, and rodless cavity 42 is by the second overflow valve 82 and fuel tank 10 UNICOM.
The setting of the first overflow valve 81 be cause to prevent servo valve 50 from damaging when crack mould auxiliary cylinder 40 cannot draining phenomenon occur, when the oil pressure of rod chamber 41 reaches the opening pressure of the first overflow valve 81, the fluid in rod chamber 41 can flow back to fuel tank 10 through the first overflow valve 81; Similarly, the setting of the second overflow valve 82 be cause to prevent servo valve 50 from damaging when high-voltage lock mould auxiliary cylinder 40 cannot draining phenomenon occur, when the oil pressure of rodless cavity 42 reaches the opening pressure of the second overflow valve 82, the fluid in rodless cavity 42 can flow back to fuel tank 10 through the second overflow valve 82.First overflow valve 81, second overflow valve 82 can both be protected auxiliary cylinder 40.
Preferably, each fluid chamber 31 by the first inserted valve 61 and oil-feed oil circuit 20 UNICOM, and is connected with solenoid directional control valve 73 on the first inserted valve 61, and solenoid directional control valve 73 is by shuttle valve 74 and the first inserted valve 61 UNICOM.
When carrying out high-voltage lock mould, fluid enters each fluid chamber 31 through oil-feed oil circuit 20, first inserted valve 61, solenoid directional control valve 73 and shuttle valve 74 cooperating, control the open and close of the first inserted valve 61, wherein the setting of shuttle valve 74 is that conveniently a part of fluid controls the open and close of the first inserted valve 61 as control oil.
In the present embodiment, first inserted valve 61 also with fuel tank 10 UNICOM, when controlling oil when solenoid directional control valve 73, shuttle valve 74 enter the first inserted valve 61 (solenoid directional control valve 73 is in opening), controlling oil generation pressure and the first inserted valve 61 is closed; Otherwise, when solenoid directional control valve 73 cuts out, control oil and cannot enter the first inserted valve 61 through solenoid directional control valve 73, shuttle valve 74, the control oil being originally positioned at the first inserted valve 61 directly flows back to fuel tank 10 through solenoid directional control valve 73, and now the first inserted valve 61 is in opening.
Further preferably, each fluid chamber 31 by the second inserted valve 62 and fuel tank 10 UNICOM, and is connected with the second Solenoid ball valve 72, second Solenoid ball valve 72, second inserted valve 62 and fuel tank 10 three UNICOM on the second inserted valve 62.
Second Solenoid ball valve 72 is for controlling the open and close of the second inserted valve 62, and when carrying out crack mould, the fluid in each fluid chamber 31 flows back to fuel tank 10 through the second inserted valve 62, while oil return, also carry out certain pressure leak process.
Preferably, between fluid chamber 31 and fuel tank 10, be provided with the first Solenoid ball valve 71, and the first Solenoid ball valve 71 respectively with fuel tank 10, each fluid chamber 31 UNICOM.The setting of the first Solenoid ball valve 71 is to carry out pressure release to fluid chamber 31 before mould crack after high-voltage lock mould, if do not carry out pressure release, the pressure in fluid chamber 31 is too high, and auxiliary cylinder 40 cannot promote locking piston bar 33 action, just cannot carry out crack die worker's work.
Preferably, between fluid chamber 31 and fuel tank 10, be also provided with the 3rd overflow valve 83, and the 3rd overflow valve 83 respectively with fuel tank 10, each fluid chamber 31 UNICOM.The setting of the 3rd overflow valve 83 is consistent with the effect of the first overflow valve 81, second overflow valve 82, can protect Mode-locking oil cylinder 30, when each fluid chamber 31 cannot draining time, by the 3rd overflow valve 83 draining to fuel tank 10.
Further preferably, Mode-locking oil cylinder 30 is provided with pressure sensor 91 and pressure sensor 91 and each fluid chamber 31 UNICOM, pressure sensor 91 is also connected with Pressure gauge 92.The setting of pressure sensor 91 and Pressure gauge 92, can carry out detecting to the pressure of Mode-locking oil cylinder 30 and observe, convenient operation person controls the related work processes such as crack mould.
Present invention also offers the oil circuit control method of the crack modular system of a kind of injection machine, concrete steps are as follows:
The first step: close solenoid directional control valve 73 and make the first inserted valve 61 be in opening, open each servo valve 50 side oil circuit, fluid enters each fluid chamber 31 through oil-feed oil circuit 20, first inserted valve 61 and promotes corresponding locking piston bar 33 successively and moves inward, locking piston bar 33 drives corresponding auxiliary piston rod 43 to move together, and the fluid in rodless cavity 42 flows back to fuel tank 10 by corresponding servo valve 50;
Now; injection machine is in high-voltage lock mould state; particularly; fluid enters the first inserted valve 61 through oil-feed oil circuit 20 and then enters each fluid chamber 31; promote the corresponding related auxiliary piston rod 43 of locking piston bar 33 to move inward; thus the fluid in rodless cavity 42 is flowed back to fuel tank 10 through the servo valve 50 of correspondence, complete high-voltage lock mould work.
Second step: open solenoid directional control valve 73 and make the first inserted valve 61 be in closed condition, drive servo valve 50 to get back to meta, now each oil circuit is in packing state, and both locking piston bar 33 and auxiliary piston rod 43 position remains unchanged;
First inserted valve 61 is in closed condition, and meta got back to by servo valve 50, and in each oil circuit, fluid no longer flows, and maintains high-voltage lock mould state herein.
Before carrying out third step, also need to carry out pressure release to each fluid chamber 31, to carry out crack die worker's work smoothly.Particularly, open the first Solenoid ball valve 71, pressure release is carried out through the first Solenoid ball valve 71 in each fluid chamber 31.
3rd step: open each servo valve 50 opposite side oil circuit, opening the second Solenoid ball valve 72 makes the second inserted valve 62 be in opening, fluid enters corresponding rodless cavity 42 through oil-feed oil circuit 20, each servo valve 50 and promotes corresponding auxiliary piston rod 43 outwards movement successively, auxiliary piston rod 43 drives corresponding locking piston bar 33 to move together, fluid in rod chamber 41 flows back to fuel tank 10 by corresponding servo valve 50, and the fluid in each fluid chamber 31 flows back to fuel tank 10 through the second inserted valve 62;
Now, injection machine is in micro-die opening state, particularly, fluid enters each servo valve 50 through oil-feed oil circuit 20, and then enter the auxiliary piston rod 43 outwards movement that corresponding rodless cavity 42 promotes correspondence, open the second inserted valve 62 so that the fluid in each fluid chamber 31 flows back to fuel tank 10 through the second inserted valve 62, the fluid in rod chamber 41 then flows back to fuel tank 10 by corresponding servo valve 50, completes crack die worker and does.
4th step: close the second Solenoid ball valve 72 and make the second inserted valve 62 be in closed condition, drive servo valve 50 to get back to meta, now each oil circuit is in packing state, and both locking piston bar 33 and auxiliary piston rod 43 position remains unchanged.
Second inserted valve 62 is in closed condition, and meta got back to by servo valve 50, and in each oil circuit, fluid no longer flows, and maintains micro-die opening state herein.
It is worth mentioning that; during crack mould, the stroke of auxiliary piston rod 43 and locking piston bar 33 can be controlled by servo valve 50; when the pressure that pressure sensor 91 detects or Pressure gauge 92 shows fluid chamber 31 acquires a certain degree; servo valve 50 can control auxiliary piston rod 43 and locking piston bar 33 slowly movement, until stop.
The present invention is reasonable in design, adopts the setting of crack unit, can carry out high-precision crack die worker and do, can significantly improve the injection moulding quality of expanded material product, reach good injection moulding effect, be worth widely using.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (10)

1. the crack modular system of injection machine, is characterized in that, comprising:
Fuel tank, for storing fluid;
Oil-feed oil circuit, with fuel tank UNICOM and for delivering oil;
Mode-locking oil cylinder, be set to multiple and each Mode-locking oil cylinder respectively with oil-feed oil circuit, fuel tank UNICOM;
Crack unit, with Mode-locking oil cylinder one_to_one corresponding, described crack unit also drives corresponding Mode-locking oil cylinder to carry out crack mould with oil-feed oil circuit UNICOM.
2. the crack modular system of a kind of injection machine according to claim 1, it is characterized in that, each crack unit includes the auxiliary cylinder of mutual UNICOM, servo valve and auxiliary cylinder are connected with corresponding Mode-locking oil cylinder, described servo valve respectively with oil-feed oil circuit, fuel tank UNICOM.
3. the crack modular system of a kind of injection machine according to claim 2, is characterized in that, described Mode-locking oil cylinder there is a locking piston bar and locking piston bar by Mode-locking oil cylinder shared oil sap cavity and without oil pocket, each fluid chamber respectively with oil-feed oil circuit, fuel tank UNICOM.
4. the crack modular system of a kind of injection machine according to claim 3; it is characterized in that; described auxiliary cylinder has an auxiliary piston rod and auxiliary cylinder is divided into rod chamber and rodless cavity by auxiliary piston rod; described auxiliary piston rod part stretches into and corresponding to be connected with locking piston bar without oil pocket, described servo valve respectively with corresponding rod chamber, rodless cavity UNICOM.
5. the crack modular system of a kind of injection machine according to claim 3 or 4, it is characterized in that, each fluid chamber by the first inserted valve and oil-feed oil circuit UNICOM, and is connected with solenoid directional control valve on the first inserted valve, and described solenoid directional control valve is by shuttle valve and the first inserted valve UNICOM.
6. the crack modular system of a kind of injection machine according to claim 3 or 4, it is characterized in that, each fluid chamber by the second inserted valve and fuel tank UNICOM, and is connected with the second Solenoid ball valve, described second Solenoid ball valve, the second inserted valve and fuel tank three UNICOM on the second inserted valve.
7. the crack modular system of a kind of injection machine according to claim 3 or 4, is characterized in that, be provided with the first Solenoid ball valve between fluid chamber and fuel tank, and the first Solenoid ball valve respectively with fuel tank, each fluid chamber UNICOM.
8. the crack modular system of a kind of injection machine according to claim 3 or 4, is characterized in that, Mode-locking oil cylinder is provided with pressure sensor and pressure sensor and each fluid chamber UNICOM, pressure sensor is also connected with Pressure gauge.
9. an oil circuit control method for the crack modular system of injection machine, is characterized in that, comprise step:
Closing solenoid directional control valve makes the first inserted valve be in opening, open each servo valve side oil circuit, fluid enters each fluid chamber and promotes corresponding locking piston bar move inward through oil-feed oil circuit, the first inserted valve successively, locking piston bar drives corresponding auxiliary piston rod to move together, and the fluid in rodless cavity flows back to fuel tank by corresponding servo valve;
Opening solenoid directional control valve makes the first inserted valve be in closed condition, and drive servo valve to get back to meta, now each oil circuit is in packing state, and both locking piston bar and auxiliary piston rod position remains unchanged;
Open each servo valve opposite side oil circuit, opening the second Solenoid ball valve makes the second inserted valve be in opening, fluid enters corresponding rodless cavity through oil-feed oil circuit, each servo valve and promotes corresponding auxiliary piston rod outwards movement successively, auxiliary piston rod drives corresponding locking piston bar to move together, fluid in rod chamber flows back to fuel tank by corresponding servo valve, and the fluid in each fluid chamber flows back to fuel tank through the second inserted valve;
Closing the second Solenoid ball valve makes the second inserted valve be in closed condition, and drive servo valve to get back to meta, now each oil circuit is in packing state, and both locking piston bar and auxiliary piston rod position remains unchanged.
10. the oil circuit control method of the crack modular system of a kind of injection machine according to claim 9, is characterized in that, also comprises the step of each fluid chamber being carried out to pressure release between step 2 and step 3:
Open the first Solenoid ball valve, each fluid chamber first Solenoid ball valve carries out pressure release.
CN201610050097.6A 2016-01-25 2016-01-25 A kind of crack modular system of injection machine and its oil circuit control method Active CN105538626B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108058353A (en) * 2018-01-19 2018-05-22 欧任伍 A kind of two trigger locked mode control systems and its oil circuit control method
CN109278337A (en) * 2018-10-09 2019-01-29 合肥合锻智能制造股份有限公司 A kind of nuclear fuel pre-compaction forming hydraulic press

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317087Y (en) * 2008-12-25 2009-09-30 蔡业 Fully hydraulic locking injection molding machine with big distance between two molding boards
CN101758607A (en) * 2009-12-18 2010-06-30 东华机械有限公司 Quick mould opening/closing control structure and control method of toggle type injection molding machine
CN204622516U (en) * 2015-05-22 2015-09-09 常州大思世成机电科技有限公司 A kind of injection machine rapid mould-moving oil circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201317087Y (en) * 2008-12-25 2009-09-30 蔡业 Fully hydraulic locking injection molding machine with big distance between two molding boards
CN101758607A (en) * 2009-12-18 2010-06-30 东华机械有限公司 Quick mould opening/closing control structure and control method of toggle type injection molding machine
CN204622516U (en) * 2015-05-22 2015-09-09 常州大思世成机电科技有限公司 A kind of injection machine rapid mould-moving oil circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108058353A (en) * 2018-01-19 2018-05-22 欧任伍 A kind of two trigger locked mode control systems and its oil circuit control method
CN109278337A (en) * 2018-10-09 2019-01-29 合肥合锻智能制造股份有限公司 A kind of nuclear fuel pre-compaction forming hydraulic press
CN109278337B (en) * 2018-10-09 2020-11-10 合肥合锻智能制造股份有限公司 Nuclear fuel pre-pressing forming hydraulic machine

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