CN202241877U - Injection molding machine using general valve - Google Patents
Injection molding machine using general valve Download PDFInfo
- Publication number
- CN202241877U CN202241877U CN2011203300071U CN201120330007U CN202241877U CN 202241877 U CN202241877 U CN 202241877U CN 2011203300071 U CN2011203300071 U CN 2011203300071U CN 201120330007 U CN201120330007 U CN 201120330007U CN 202241877 U CN202241877 U CN 202241877U
- Authority
- CN
- China
- Prior art keywords
- valve
- control valve
- directional control
- solenoid directional
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to an injection molding machine using a general valve. The injection molding machine comprises a valve seat, wherein four working ports are arranged at the front side of the valve seat, and an oil inlet and an oil outlet are arranged at the left side of the valve seat; a first overlapping hydraulic control valve and a second overlapping hydraulic control valve are arranged at the center of the upper surface of the valve seat side by side; the first overlapping hydraulic control valve is provided with a first electromagnetic directional valve and the second overlapping hydraulic control valve is provided with a second electromagnetic directional valve; a fourth electromagnetic directional valve is arranged on a bulge at one end of the valve seat and a third electromagnetic directional valve which is connected with the fourth electromagnetic directional valve in parallel is arranged at the other end of the valve seat; and the fourth electromagnetic directional valve and the third electromagnetic directional valve are connected in parallel and then are connected to an oil cylinder through a pipe type throttling valve. According to the utility model, the movement speed of an executive element can be increased, and electrodeless speed adjustment and accurate second-grade speed control are realized.
Description
Technical field
The utility model belongs to the injection machine technical field, particularly relates to a kind of injection machine that adopts valve for general use.
Background technology
It generally all is to adopt hydraulic proportional technology, double pump fuel feeding, accumulator, mechanical system, electro-hydraulic proportional control technology, servomotor, external Hydraulic Station control etc. all can improve the production cycle of product that present injection machine improves, but all will increase hydraulic proportional element, duplex pump or pumping plant, electric hydraulic control valve etc. usually; Cost is higher relatively; Common middle-size and small-size mould enterprise all is unwilling, and investment increases production cost too greatly on equipment, and is therefore, as shown in Figure 1; On the basis of original injection machine; Present most injection machine all is to adopt to change screw slenderness ratio, perhaps increases manipulator, special cooling device; Improve the production efficiency of injection machine, but cost is high especially; Also have patent to relate to the two step velocitys adjustment that realizes injection machine neutron oil circuit with special reversal valve, but the manufacturing cost of special reversal valve is also than higher.
Summary of the invention
The utility model technical problem to be solved provides a kind of injection machine that adopts valve for general use, improves the movement velocity of executive component, realizes stepless time adjustment and accurate secondary speed controlling.
The utility model solves the technical scheme that its technical problem adopted: a kind of injection machine that adopts valve for general use is provided, comprises valve seat, described valve seat front side is provided with four actuator ports, and the left side is provided with oil-in and oil-in; Center above the described valve seat is furnished with the first stack pilot operated valve device and the second stack pilot operated valve device side by side; Is furnished with first solenoid directional control valve above the described first stack pilot operated valve device; Is furnished with second solenoid directional control valve above the described second stack pilot operated valve device; Be furnished with the 4th solenoid directional control valve above the convexity of the end above the described valve seat, the other end above the described valve seat is furnished with the 3rd solenoid directional control valve that is connected side by side with the 4th solenoid directional control valve; Described the 4th solenoid directional control valve is connected after the tubular type choke valve is connected to oil cylinder with the 3rd solenoid directional control valve side by side.
The oil-in of described the 4th solenoid directional control valve and the 3rd solenoid directional control valve is connected with the hydraulic pressure delivery side of pump respectively; The A1 mouth of described the 4th solenoid directional control valve is connected with the A2 mouth of the 3rd solenoid directional control valve and ejects oil cylinder after the tubular type choke valve is connected to; The B1 mouth of described the 4th solenoid directional control valve is connected with the B2 mouth of the 3rd solenoid directional control valve, and the oil return opening of the 4th solenoid directional control valve and the 3rd solenoid directional control valve is connected with fuel tank respectively.
Beneficial effect
The utility model relates to a kind of injection machine that adopts valve for general use, through the reversal valve and the tubular type choke valve of ingenious configure generic, improves the movement velocity of executive component, realizes stepless time adjustment and accurate secondary speed controlling; This oil circuit can be used on the hydraulic pressure neutron; Can be used on also that injection machine ejects oil cylinder and seat moves in the speed adjustment of oil cylinder; In implementation process, need not increase extra electrical equipment; As long as the electric control loop at the standard injection machine increases by two IO points, can use IO point subsequent use in the standardization program, need not to increase cost.
Description of drawings
Fig. 1 is existing valve board structure sketch map.
Fig. 2 is the utility model valve board structure sketch map.
Fig. 3 is the scheme of installation of newly-increased valve for general use.
Fig. 4 is the hydraulic scheme of newly-increased valve for general use.
Fig. 5 ejects speed curve diagram for oil cylinder.
1. the 4th solenoid directional control valve; 2. first solenoid directional control valve; First the stack pilot operated valve device; 4. second solenoid directional control valve; Second the stack pilot operated valve device; 6. the 3rd solenoid directional control valve; 7. tubular type choke valve; 8. actuator port; 9. oil return opening; 10. oil-in.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
To shown in Figure 4, the utility model is a kind of injection machine that adopts valve for general use, comprises valve seat 11 like Fig. 2, and described valve seat 11 front sides are provided with four actuator ports 8, and the left side is provided with oil-in 10 and oil-in 9; Center above the described valve seat 11 is furnished with the first stack pilot operated valve device 3 and the second stack pilot operated valve device 5 side by side; Is furnished with first solenoid directional control valve 2 above the described first stack pilot operated valve device 3; Is furnished with second solenoid directional control valve 4 above the described second stack pilot operated valve device 5; Be furnished with the 4th solenoid directional control valve 1 above the convexity of the end above the described valve seat 11, the other end above the described valve seat 11 is furnished with the 3rd solenoid directional control valve 6 that is connected side by side with the 4th solenoid directional control valve 1; Described the 4th solenoid directional control valve 1 is connected after tubular type choke valve 7 is connected to oil cylinder with the 3rd solenoid directional control valve 6 side by side; The oil-in 10 of described the 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 is connected with the hydraulic pressure delivery side of pump respectively; The A1 mouth of described the 4th solenoid directional control valve 1 is connected with the A2 mouth of the 3rd solenoid directional control valve 6 and ejects oil cylinder after tubular type choke valve 7 is connected to; The B1 mouth of described the 4th solenoid directional control valve 1 is connected with the B2 mouth of the 3rd solenoid directional control valve 6, and the oil return opening 9 of the 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 is connected with fuel tank respectively.
Choose under the situation that the 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 work simultaneously, the restriction flow area has increased by 2 times, and the flow through oil circuit has also increased.When adopting the 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 to work simultaneously; After product leaves mould; The 3rd solenoid directional control valve 6 oil circuits are started working, and the flow that its flow can be much larger than separately time with the 4th solenoid directional control valve 1 time is obviously accelerated thereby push pedal is ejected with the speed of backhaul; The quality of product also is guaranteed, and the push pedal working time before and after improving is more as shown in table 1.
Test parameter:
Pump control main line flow: 261L/min; Eject cylinder tube diameter: D=100mm; Eject diameter of piston rod: d=45mm; The 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 specifications: DG4V-5-31C-J-MUH6-20 (Vickers, 10 latus rectums), tubular type choke valve 7 specifications: AL-G20-31.5BZ-80.It is as shown in table 1 that actual measurement ejects speed data.
Table 1 actual measurement ejects speed data relatively: (two groups eject oil cylinder)
| Eject | Move back on the top | The valve maximum stream flow | |
| The 4th solenoid directional control valve 1 | 0.11m/s | 0.13m/s | 100L/min |
| The 4th solenoid directional control valve 1 and the 3rd solenoid |
0.23m/s | 0.27m/s | 198L/min |
| Speed increasing ratio | 2.01 | 2.1 | 1.98 |
Tubular type choke valve 7 is as inlet throttle speed regulating control valve, and control ejects oil cylinder, and to eject rate curve as shown in Figure 5.
Through setting the 4th solenoid directional control valve 1 and the 3rd solenoid directional control valve 6 opening time separately and the openings of sizes of tubular type choke valve 7, make ejecting mechanism obtain stepless time adjustment and accurate secondary speed controlling.
Production application with the box mould specifies the utility model below.
Injection machine is selected the HTF1000W2 of Hai Tian for use; Box is of a size of 500X360X280, box quality 965 grams.The matched moulds guiding mechanism of this mould adopts the form of guide pillar guiding, and 4 of side core-pullings are arranged, and adopts loose core of oil cylinder mechanism.
Flow size in the oil circuit mainly realizes through scalable valve port flow area, controls the movement velocity of executing agency through the size of flow.
The restriction form approaches the thin-walled hole more, by thin-walled hole, fluid force Xue Zhi formula is:
In the formula:
Cd-is by the coefficient of restriction shape and the decision of fluid character
The cross-sectional flow area of A0-restriction
The forward and backward pressure reduction of Δ P-choke valve
The density of ρ-hydraulic oil
From following formula, can know, when the flow area of restriction increases,, thereby improve the movement velocity of executing agency, realize stepless time adjustment through the size of regulating the choke valve opening through the also corresponding increase of the flow of oil circuit.
According to above principle, consider that simultaneously the box mould ejects product for the cover half side, it is slow that the speed that ejects when product opens mould is wanted, in case speed just can be accelerated after product left mould, the speed of push pedal backhaul also can be accelerated, and is as shown in table 2.
Push pedal working time contrast before and after table 2 is implemented
| Ejection cycle S | Return interval S | The total cycle S of moulding | |
| Do not implement | 5 | 4 | 50 |
| After the |
4 | 3 | 48 |
| The time decreasing ratio | 20％ | 25％ | 4％ |
Claims (2)
1. an injection machine that adopts valve for general use comprises valve seat (11), and described valve seat (11) front side is provided with four actuator ports (8), and the left side is provided with oil-in (10) and oil return opening (9); Center above the described valve seat (11) is furnished with the first stack pilot operated valve device (3) and the second stack pilot operated valve device (5) side by side; Is furnished with first solenoid directional control valve (2) above the described first stack pilot operated valve device (3); Is furnished with second solenoid directional control valve (4) above the described second stack pilot operated valve device (5); Be furnished with the 4th solenoid directional control valve (1) above the convexity of the end above the described valve seat (11), it is characterized in that, the other end above the described valve seat (11) is furnished with the 3rd solenoid directional control valve (6) that is connected side by side with the 4th solenoid directional control valve (1); Described the 4th solenoid directional control valve (1) is connected after tubular type choke valve (7) is connected to oil cylinder with the 3rd solenoid directional control valve (6) side by side.
2. a kind of injection machine that adopts valve for general use according to claim 1 is characterized in that, the oil-in (10) of described the 4th solenoid directional control valve (1) and the 3rd solenoid directional control valve (6) is connected with the hydraulic pressure delivery side of pump respectively; (A1) mouth of described the 4th solenoid directional control valve (1) is connected with (A2) mouth of the 3rd solenoid directional control valve (6) and ejects oil cylinder after tubular type choke valve (7) is connected to; (B1) mouth of described the 4th solenoid directional control valve (1) is connected with (B2) of the 3rd solenoid directional control valve (6) mouthful, and the oil return opening (9) of the 4th solenoid directional control valve (1) and the 3rd solenoid directional control valve (6) is connected with fuel tank respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203300071U CN202241877U (en) | 2011-09-05 | 2011-09-05 | Injection molding machine using general valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203300071U CN202241877U (en) | 2011-09-05 | 2011-09-05 | Injection molding machine using general valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202241877U true CN202241877U (en) | 2012-05-30 |
Family
ID=46103170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203300071U Expired - Fee Related CN202241877U (en) | 2011-09-05 | 2011-09-05 | Injection molding machine using general valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202241877U (en) |
-
2011
- 2011-09-05 CN CN2011203300071U patent/CN202241877U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101758607B (en) | Quick mould opening/closing control structure and control method of toggle type injection molding machine | |
| CN105443837B (en) | A kind of solenoid-operated proportional flow valve | |
| CN106593837B (en) | Hydraulic planger pump Variable Control structure and its control method | |
| CN108035926B (en) | A kind of application method of multi-cylinder linkage hydraulic system of hydraulic machine | |
| CN202241877U (en) | Injection molding machine using general valve | |
| CN201361927Y (en) | Pressure adjusting and speed adjusting circuit for pressure-flow composite proportion in concrete block machine | |
| CN203176069U (en) | Flexible unloading hydraulic system | |
| CN202579386U (en) | Speed-limiting hydraulic lock | |
| CN203342759U (en) | Full-automatic stepless speed change type linear depressurization device | |
| CN203081878U (en) | Hydraulic control system and engineering machine | |
| CN203516093U (en) | Pressure and flow control valve of steering oil pump | |
| CN101157123A (en) | Controlling method of pressing morphism rapid braking of die casting machine | |
| CN102966615A (en) | Servo hydraulic control system with automatically adjustable punching stroke and speed of punch press | |
| CN202900815U (en) | Servo hydraulic control system capable of adjusting punching stroke and punching speed of punch automatically | |
| CN201761046U (en) | Improved type injection molding machine | |
| CN203485408U (en) | Mould opening-demoulding linkage mechanism of injection mould machine | |
| CN208410662U (en) | A kind of neutron quick pressure releasing oil circuit applied to injection molding machine | |
| CN208918940U (en) | A kind of punching press machine hydraulic system | |
| CN218477086U (en) | Mould opening and closing hydraulic system of injection molding machine | |
| CN206189498U (en) | Excavator is valve rod for main control valve | |
| CN203488455U (en) | Solenoid valve-controlled opening and closing linkage mechanism | |
| CN221054043U (en) | Hydraulic buffer valve group | |
| CN200989468Y (en) | Stepless output runner structure for flow-proportioning valve | |
| CN209223153U (en) | A kind of oil piping system of die casting machine quick clamping | |
| CN201650910U (en) | Hydraulic pressure difference control valve |
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 |
Granted publication date: 20120530 Termination date: 20150905 |
|
| EXPY | Termination of patent right or utility model |