CN209649309U - A kind of hydraulic device of Ioad-sensing control EPP molding machine - Google Patents
A kind of hydraulic device of Ioad-sensing control EPP molding machine Download PDFInfo
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- CN209649309U CN209649309U CN201821452250.9U CN201821452250U CN209649309U CN 209649309 U CN209649309 U CN 209649309U CN 201821452250 U CN201821452250 U CN 201821452250U CN 209649309 U CN209649309 U CN 209649309U
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Abstract
A kind of hydraulic device of Ioad-sensing control EPP molding machine, shaping machine main body is by rack, mould group, locking device, hydraulic mechanism, carry pressure tank and stripper apparatus composition, the hydraulic mechanism includes Variable plunger pump, pressure compensator, directional control valve and oil pump, the utility model uses the hydraulic device of Ioad-sensing control to existing EPP molding machine, allow to detect the load variation that press moulding mechanism is born, change output flow according to the different of load by Variable plunger pump, adjust power output and operating rate, so that complete machine can adapt to different loading conditions at work, when loading reduction, the pressure that Variable plunger pump exports oil liquid reduces, this reduces the consumption of the energy, Auto-matching needed for the device not only can guarantee the pressure of hydraulic pump and load, and the speed of load can be accurately controlled, make it effectively Power loss is reduced, improves efficiency, improve the advantages that stability, realizes rate of good quality rate and high production rate.
Description
Technical field
The utility model relates to EPP shaping machine fields, more specifically more particularly to a kind of Ioad-sensing control
The hydraulic device of EPP molding machine.
Background technique
EPP is the abbreviation of expanded polypropylene, is a kind of abbreviation of novel foamed plastic, EPP light specific gravity, elasticity is good, antidetonation
Resistance to compression, Recovery is high, absorbent properties are good, oil resistant, acidproof, alkaline-resisting, resistance to various chemical solvents, do not absorb water, insulate, it is heat-resisting (-
40~130 DEG C), it is non-toxic and tasteless, it 100% can be recycled and performance does not almost reduce, be real environmentally friendly foam
Plastics, EPP moulding process include prefoam, molding and drying etc., and molding is to mold the EPP bead after foaming in molding machine
At various EPP products of different shapes, molding machine includes fixed half and moving half, and cover half is fixed on the rack, and is provided with slot thereon,
There is convex body on dynamic model, dynamic model drives opposite cover half to move by press moulding mechanism, after dynamic model and cover half are combined, EPP bead
It is sprayed into through spray gun in the groove of cover half, under dynamic model pressing and heat effect, forms EPP foam plate.
And the press moulding mechanism of tradition EPP molding machine has the shortcomings that power loss height, low efficiency, stability are poor, is working
In the process, when encountering different operating conditions, press moulding mechanism cannot bear the variation adjustment power output and pressure of load according to press moulding mechanism
The operating rate of mould makes complete machine that cannot be made adjustment in time according to different loading conditions at work, causes Forming Quality poor,
The problems such as yields is low and productivity is low.
Utility model content
The utility model improves the prior art for disadvantages mentioned above, provides a kind of Ioad-sensing control EPP molding
The hydraulic device of machine, technical solution are as follows:
A kind of hydraulic device of Ioad-sensing control EPP molding machine, includes shaping machine main body, the shaping machine main body by
Rack, locking device, hydraulic mechanism, carries pressure tank and stripper apparatus composition at mould group, and the hydraulic mechanism includes variable piston
Pump, pressure compensator, directional control valve and oil pump, the Variable plunger pump connect pressure compensator, pressure compensator connection
Directional control valve, the Variable plunger pump are separately connected pressure compensator and directional control valve, the direction by load-sensitive valve
Control valve connects the both ends of oil pump by pipeline respectively, and one end of the oil compression rod of the oil pump connects mould group, the mould group it is another
Side is connected by spray gun carries pressure tank, and the top of the mould group is connected with vacuum pump by pipeline, and lower section is provided with locking device, should
Vacuum pump and locking device are all set in the outside of rack.
Further, the mould group includes dynamic model and cover half, and one end of the oil compression rod of the oil pump connects dynamic model, the dynamic model
Side be correspondingly arranged on cover half, the cover half is fixedly installed on the interior side of rack, and the side of the cover half passes through spray gun
Connection carries pressure tank, and top connects vacuum pump by pipeline.
The center of the cover half is equipped with stripper apparatus, and one end of the stripper apparatus, which is worn, is fixed on rack, and the other end is set
It is placed in the inner wall of cover half.
The locking device includes driver and locking bracket, and the driver connects locking bracket, the locking bracket
The movable lower section for being arranged in rack, the opening and the equivalent width after die combination mould of locking bracket, cover locking bracket can
Set on the two sides of mould group.
Compared with prior art, the utility model has the following beneficial effects: the utility model is negative to the use of existing EPP molding machine
The hydraulic device for carrying sensitive control allows to detect the load variation that press moulding mechanism is born, by Variable plunger pump according to negative
The different of load change output flow, power output and operating rate are adjusted, so that complete machine can adapt to different loads at work
Situation, and Ioad-sensing control is exactly so that Variable plunger pump is exported a ratio in the pressure feedback to Variable plunger pump that will be loaded
Load needs bigger pressure, and difference is set by the spring of pressure compensator, when loading reduction, Variable plunger pump output oil
The pressure of liquid reduces, and this reduces the consumption of the energy, which not only can guarantee automatic needed for the pressure and load of hydraulic pump
Matching, and can be accurately controlled the speed of load, it is made power loss to be effectively reduced, improve efficiency, improve stability etc.
Advantage realizes rate of good quality rate and high production rate.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described:
Fig. 1 is the structural schematic diagram of the utility model；
Include: shaping machine main body 10, rack 11, mould group 12, locking device 13, hydraulic mechanism 14, carry pressure tank 15, demoulding dress
Set 16, Variable plunger pump 17, pressure compensator 18, directional control valve 19, oil pump 20, load-sensitive valve 21, spray gun 22, vacuum
Pump 23, oil compression rod 24, dynamic model 25, cover half 26, driver 27, locking bracket 28.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, belongs to the protection scope of the utility model.
The utility model embodiment is described in further detail below in conjunction with attached drawing, as follows in detail:
A kind of hydraulic device of Ioad-sensing control EPP molding machine as shown in Figure 1, includes shaping machine main body 10, at
Type owner body 10 is made of rack 11, mould group 12, locking device 13, hydraulic mechanism 14, load pressure tank 15 and stripper apparatus 16, liquid
Press mechanism 14 includes Variable plunger pump 17, pressure compensator 18, directional control valve 19 and oil pump 20, and Variable plunger pump 17 connects
Pressure compensator 18, the pressure compensator 18 connect directional control valve 19, and Variable plunger pump 17 is distinguished by load-sensitive valve 21
Pressure compensator 18 and directional control valve 19 are connected, direction control valve 19 connects the both ends of oil pump 20, oil by pipeline respectively
One end of the oil compression rod 24 of pump 20 connects mould group 12, and the other side of the mould group 12 carries pressure tank 15, mould group by the connection of spray gun 22
12 top is connected with vacuum pump 23 by pipeline, and lower section is provided with locking device 13, and the vacuum pump 23 and locking device 13 are equal
It is set to the outside of rack 11.
Further, mould group 12 includes dynamic model 25 and cover half 26, and one end of the oil compression rod 24 of oil pump 20 connects dynamic model 25, should
The side of dynamic model 25 is correspondingly arranged on cover half 26, and cover half 26 is fixedly installed on the interior side of rack 11, and the side of cover half 26 is logical
It crosses the connection of spray gun 22 and carries pressure tank 15, top connects vacuum pump 23 by pipeline, and the center of cover half 26 is equipped with stripper apparatus 16, should
One end of stripper apparatus 16, which is worn, is fixed on rack 11, and the other end is set to the inner wall of cover half 26, and locking device 13 includes to drive
Dynamic device 27 and locking bracket 28, driver 27 connect locking bracket 28, and the locking bracket 28 is movable to be arranged under rack 11
Side, the equivalent width after opening and mould group 12 molding of locking bracket 28, makes locking bracket 28 that can be sheathed on the two of mould group 12
Side.
By taking working principle combination above structure as an example, when hydraulic device does not work, pressure compensator 18 can compared with
Standby mode is kept under low pressure, load-sensitive valve 21 cuts off the pressure signal made between oil pump 20 and Variable plunger pump 17,
This will cause Variable plunger pump 17 to be transferred to low pressure wait state automatically when hydraulic device does not work, when load-sensitive valve 21 works
When, pressure compensator 18 experiences the flow demand of hydraulic device and can according to flow demand offer in the variation of hydraulic device operating condition
The flow of tune, meanwhile, by pressure signal transmission to Variable plunger pump 17, Variable plunger pump 17 is made to start the pressure to hydraulic device
It responds, the flow demand of hydraulic device feeds back to Variable plunger pump 17 by signal road, load-sensitive valve 21, and in flow
Variable plunger pump 17 may be implemented under instruction condition to the servo antrol of load pressure；
And hydraulic device drives dynamic model 25, is combined together it with cover half 26, that is, molds, then the drive of locking device 13
Dynamic device 27 drives locking bracket 28 to lock mould group 12, vacuum pump 23 by the pipeline that is connect with cover half 26 to die cavity into
Row vacuumizes, and then EPP bead, which first contains pressure in load pressure tank 15, makes the air that certain pressure is filled in bead, then with compression sky
Gas is injected into die cavity through spray gun 22, is heated by heating device to mould group 12, and EPP bead is made further to expand simultaneously surface
It is fused to and forms together and under stress, cooling rear mold group 12 is using stabilization processes under certain temperature, 13 pine of locking device
Open, dynamic model 25 separates under the driving of hydraulic device with cover half 26, EPP foam plate by the stripper apparatus 16 of cover half 26 push into
Row separation, to obtain EPP finished product, the utility model uses the hydraulic device of Ioad-sensing control to existing EPP molding machine, makes
Its load variation that can detecte press moulding mechanism receiving changes output flow according to the different of load by Variable plunger pump 17,
Power output and operating rate are adjusted, so that complete machine can adapt to different loading conditions at work, and Ioad-sensing control is just
It is so that Variable plunger pump 17 is exported one in the pressure feedback to Variable plunger pump 17 that will be loaded and need bigger pressure than load
Power, difference is set by the spring of pressure compensator 18, and when loading reduction, the pressure that Variable plunger pump 17 exports oil liquid subtracts
It is small, this reduces the consumption of the energy, Auto-matching needed for which not only can guarantee the pressure of hydraulic pump and load, and
It can be accurately controlled the speed of load, make it that power loss be effectively reduced, improve efficiency, improve the advantages that stability, realized high
Yields and high production rate.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replace and deform, the scope of the utility model is limited by appended claims extremely equivalent.
Claims (4)
1. a kind of hydraulic device of Ioad-sensing control EPP molding machine includes shaping machine main body (10), it is characterised in that: institute
Shaping machine main body (10) is stated by rack (11), mould group (12), locking device (13), hydraulic mechanism (14), load pressure tank (15) and is taken off
Mold device (16) composition, the hydraulic mechanism (14) includes Variable plunger pump (17), pressure compensator (18), directional control valve
(19) and oil pump (20), the Variable plunger pump (17) connect pressure compensator (18), which connects direction
Control valve (19), the Variable plunger pump (17) are separately connected pressure compensator (18) and direction control by load-sensitive valve (21)
Valve (19) processed, direction control valve (19) pass through the both ends of pipeline connection oil pump (20), the oil compression rod of the oil pump (20) respectively
(24) one end connects mould group (12), and the other side of the mould group (12) carries pressure tank (15), the mould group by spray gun (22) connection
(12) top is connected with vacuum pump (23) by pipeline, and lower section is provided with locking device (13), the vacuum pump (23) and locking
Device (13) is all set in the outside of rack (11).
2. a kind of hydraulic device of Ioad-sensing control EPP molding machine according to claim 1, it is characterised in that: described
Mould group (12) includes dynamic model (25) and cover half (26), and one end of the oil compression rod (24) of the oil pump (20) connects dynamic model (25),
The side of the dynamic model (25) is correspondingly arranged on cover half (26), and the cover half (26) is fixedly installed on the interior side of rack (11),
The side of the cover half (26) carries pressure tank (15) by spray gun (22) connection, and top connects vacuum pump (23) by pipeline.
3. a kind of hydraulic device of Ioad-sensing control EPP molding machine according to claim 2, it is characterised in that: described
The center of cover half (26) is equipped with stripper apparatus (16), and one end of the stripper apparatus (16), which is worn, to be fixed on rack (11), another
End is set to the inner wall of cover half (26).
4. a kind of hydraulic device of Ioad-sensing control EPP molding machine according to claim 1, it is characterised in that: described
Locking device (13) includes driver (27) and locking bracket (28), and the driver (27) connects locking bracket (28), should
After the movable lower section for being arranged in rack (11) of locking bracket (28), the opening of locking bracket (28) and mould group (12) molding
Equivalent width makes locking bracket (28) that can be sheathed on the two sides of mould group (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452250.9U CN209649309U (en) | 2018-09-05 | 2018-09-05 | A kind of hydraulic device of Ioad-sensing control EPP molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452250.9U CN209649309U (en) | 2018-09-05 | 2018-09-05 | A kind of hydraulic device of Ioad-sensing control EPP molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209649309U true CN209649309U (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821452250.9U Active CN209649309U (en) | 2018-09-05 | 2018-09-05 | A kind of hydraulic device of Ioad-sensing control EPP molding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11686329B2 (en) | 2021-06-29 | 2023-06-27 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine fracturing apparatus |
-
2018
- 2018-09-05 CN CN201821452250.9U patent/CN209649309U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11686329B2 (en) | 2021-06-29 | 2023-06-27 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Turbine fracturing apparatus |
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