A kind of low-pressure glue-injection machine
The utility model relates to low-pressure glue-injection/injection molding arts, and in particular to a kind of low-pressure glue-injection machine.
Low-pressure injection molding machine and the control of adhesive supplier pressure currently on the market is that a kind of passively control is the hot melt in pipeline
Glue, which rises to certain pressure and opens overflow spool and flow back into glue cylinder by melten gel, carrys out dropping force, and another kind is to fill a single-acting cylinder
Overflow spool is withstood, by manually adjusting pressure control injection pressure, air pressure is adjusted too high, and the power for withstanding spool is bigger, in pipeline
Pressure is just bigger, otherwise becomes smaller.It is this control pressure method pressure oscillation it is larger, can not presetting injection pressure it is specific
Value, is unable to satisfy the injecting glue requirement of high-end product.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of low-pressure glue-injection machine, solves existing low pressure
Glue-injection machine/injection molding machine cannot accurately control injection pressure, be unable to satisfy high-end product injecting glue/injection molding demand and ask
The utility model technical solution used for the above purpose is:
A kind of low-pressure glue-injection machine comprising pedestal and the upper cover set on pedestal top, in upper cover be equipped with glue filling device, institute
Glue filling device is stated including melting glue component, in melting glue component bottom equipped with colloidal sol circulation jig, is infused in being equipped in colloidal sol circulation jig
Glue channel；The glue pump assembly being connected to glue injection channel is equipped in colloidal sol circulation jig front；It is equipped with and note in glue pump assembly side
The servo-electric cylinder component of glue channel connection；It is equipped with injecting glue connector in colloidal sol circulation jig side, is set at injecting glue connector
There is pressure sensor；The colloidal sol circulation jig is fixed on pedestal.
The glue component that melts includes glue cylinder, is coated with insulating layer in glue cylinder, is equipped with multiple heating tubes in glue cylinder bottom portion；In
Glue cylinder interior edge is uniformly provided with multiple thermally conductive sheets, is equipped with colloidal sol among glue cylinder interior and exports.
It is equipped with colloidal sol entrance at the top of the colloidal sol circulation jig, in colloidal sol circulation jig front, the corresponding glue pump assembly
Equipped with pumping hole, in pumping hole side, the corresponding servo-electric cylinder component is equipped with servo-electric cylinder component connector.
The glue pump assembly includes sequentially connected glue pump, shaft coupling and decelerating motor, wherein glue pumps one end and pumped by glue
Backing plate is fixed on the colloidal sol circulation jig, and the corresponding pumping hole setting, the decelerating motor are fixed by decelerating motor
Frame is fixed on pedestal.
The servo-electric cylinder component includes spill valve and the servo electric jar that connect with spill valve, described to overflow
Flowing valve module includes valve seat, spool, floating junction；Wherein, the valve seat corresponds to the servo-electric cylinder component connector setting,
And valve seat one end is located in servo-electric cylinder component connector；The valve seat other end is sequentially connected spool, floating junction and watches
Electric cylinder is taken, multiple dead axles are uniformly provided with around the spill valve；The servo-electric cylinder component is fixed by valve pad plate
In on colloidal sol circulation jig.
In the upper cover upper end, the corresponding glue cylinder is equipped with feeding device, which includes being set to upper cover upper end,
The feeding cover that one end and upper cover are connected by a hinge is equipped with laser material position sensor, the laser material position sensor in feeding cover
It by laser material position sensor stand, is fixed on feeding cover, and in corresponding to the laser material position sensor on feeding cover, is equipped with
Sizing material monitoring material position mouth.
A kind of low-pressure glue-injection method comprising following steps:
(1) glue component is melted in setting；
(2) in melt glue component bottom setting colloidal sol circulate jig, in colloidal sol circulation jig in be equipped with glue injection channel；
(3) the glue pump assembly being connected to glue injection channel is set in colloidal sol circulation jig front；
(4) the servo-electric cylinder component being connected to glue injection channel is set in glue pump assembly side, and in servo electric jar group
Part and colloidal sol circulation jig connecting pin, are equipped with spill valve；
(5) injecting glue connector is set in colloidal sol circulation jig side, pressure sensor is set at injecting glue connector；
(6) PLC control system is set, it is described to melt glue component, glue pump assembly, servo-electric cylinder component and pressure sensor,
It is mutually communicated with PLC control system；
(7) injecting glue parameter is inputted to PLC control system, is then put into sizing material in glue component to melting, PLC control system issues
Melt glue signal, control melts glue component and carries out melting glue, so that sizing material is melted into colloidal sol, colloidal sol is flowed into colloidal sol by melting glue component bottom
It circulates in jig, PLC control system controls the work of glue pump assembly, and colloidal sol passes through glue injection channel stream under the action of glue pump assembly
To injecting glue connector, and by pressure sensor real-time monitoring injection pressure, by injection pressure Real-time Feedback to PLC control system,
Injecting glue operation is just carried out after the pressure in glue injection channel reaches injection pressure；
(8) when the pressure in glue injection channel is more than injection pressure, PLC control system controls servo-electric cylinder component work
Make, open spill valve, colloidal sol is allowed to flow back, reduces the pressure in glue injection channel；When the pressure in glue injection channel returns to note
When glue laminated power, PLC control system controls servo electric jar component operation, closes spill valve, pressure stabilizing is carried out, to realize
Rapid pressure adjusting.
The PLC control system is equipped with touch screen, can input injecting glue parameter by touch screen.
The beneficial effects of the utility model are:
1. the utility model removes the cylinder on conventional outflow valve, using electric cylinder connection servo motor with overflow valve group
The mode of part connection, cooperates the movement of pressure sensor active control spool to realize high-precision pressure injecting glue.
2. install high temperature resistant additional, the viscous pressure sensor of height can pressure in real-time display system.
3. installing laser material position sensor on glue cylinder additional realizes low material position alarm, the melten gel time is saved.
4. can be controlled by PLC program, real-time pressure feedback, Linear Control guarantees the stability of injection pressure.
5. controlling with conventional pressure compared to biggest advantage is: simultaneously setup pressure value can be inputted on the touchscreen, and can be deposited
Store up multi-group data, next time production similar products when call data can, greatly save adjusting machine time.
Detailed description of the invention
Fig. 1 is utility model works schematic illustration；
Fig. 2 is the utility model low-pressure glue-injection machine overall structure diagram；
Fig. 3 is Fig. 2 schematic diagram of internal structure；
Fig. 4 is Fig. 2 configuration schematic diagram；
Fig. 5 is the utility model glue cylinder structure schematic diagram；
Fig. 6 is the utility model colloidal sol circulation jig structure schematic diagram.
In figure: 1. pedestal, 2. upper cover, 3. colloidal sol circulation 4. injecting glue connector of jig
5. 8. heating tube of pressure sensor 6. glue cylinder, 7. insulating layer, 9. thermally conductive sheet
10. colloidal sol exports 11. colloidal sol entrance, 12. pumping hole
13. 14. glue of servo-electric cylinder component connector pumps 15. shaft couplings
16. 17. glue of decelerating motor pumps 18. decelerating motor fixed frame of backing plate
19. 20. spool of valve seat, 21. floating junction, 22. servo electric jar
23. 24. valve pad plate of dead axle, 25. hinge, 26. feeding cover
27. 28. laser material position sensor stand of laser material position sensor
29. sizing material monitoring material position mouth 30. stores up 31. overflow valve accommodating cavity of glue portion
32. 33. second channel of first passage, 34. handle, 35. quartz glass
36. quartz glass fixes 37. threeway of lid.
Embodiment: including pedestal 1 and upper cover 2 set on 1 top of pedestal the present embodiment provides it referring to Fig. 1 to Fig. 6, in
Glue filling device is equipped in upper cover 2, the glue filling device includes melting glue component, it is equipped with colloidal sol circulation jig 3 in melting glue component bottom,
In colloidal sol circulation jig 3 in be equipped with glue injection channel；The glue pump group being connected to glue injection channel is equipped in colloidal sol circulation 3 front of jig
Part；The servo-electric cylinder component being connected to glue injection channel is equipped in glue pump assembly side；Note is equipped in colloidal sol circulation jig side
Glue connection interface 4 is equipped with pressure sensor 5 at injecting glue connector 4；The colloidal sol circulation jig 3 is fixed on pedestal 1.
The glue component that melts includes glue cylinder 6, is coated with insulating layer 7 in glue cylinder 6, is equipped with multiple heating in 6 bottom of glue cylinder
Pipe 8；In 6 internal edge of glue cylinder, multiple thermally conductive sheets 9 are uniformly provided with, 6 bosom of glue cylinder is equipped with colloidal sol outlet 10.
It is equipped with colloidal sol entrance 11 at the top of the colloidal sol circulation jig 3, in colloidal sol circulation 3 front of jig, the corresponding glue pump
Component is equipped with pumping hole 12, and in 12 side of pumping hole, the corresponding servo-electric cylinder component is equipped with servo-electric cylinder component connector 13.
The glue pump assembly includes sequentially connected glue pump 14, shaft coupling 15 and decelerating motor 16, wherein glue pumps 14 one end
It pumps backing plate 17 by glue to be fixed on the colloidal sol circulation jig 3, and the corresponding pumping hole 12 is arranged, the decelerating motor 16 is logical
Decelerating motor fixed frame 18 is crossed to be fixed on pedestal 1.
The servo-electric cylinder component includes spill valve and the servo electric jar connecting with spill valve 22, described
Spill valve includes valve seat 19, spool 20, floating junction 21；Wherein, the corresponding servo-electric cylinder component of the valve seat 19
Connector 13 is arranged, and 19 one end of valve seat is located in servo-electric cylinder component connector 13；The valve seat other end is sequentially connected
Spool 20, floating junction 21 and servo electric jar 22 are uniformly provided with multiple dead axles 23 around the spill valve；The servo
Electronic cylinder component is fixed on the colloidal sol by valve pad plate 24 and circulates on jig 3.
In 2 upper end of upper cover, the corresponding glue cylinder 6 is equipped with feeding device, which includes being set in upper cover 2
End, one end pass through the feeding cover 26 that hinge 25 is connect with upper cover 2, are equipped with laser material position sensor 27 in feeding cover 26, this swashs
Light level sensor 27 is fixed on feeding cover 26 by laser material position sensor stand 28, and in corresponding to institute on feeding cover 26
Laser material position sensor 27 is stated, sizing material monitoring material position mouth 29 is equipped with.
The colloidal sol circulation jig 3 further includes the storage glue portion 30 being connected to the colloidal sol entrance 11, with the servo-electric
The overflow valve accommodating cavity 31 that cylinder component connector 13 is connected to.
The glue injection channel includes being connected to the storage glue portion 30 and the first passage 32 of overflow valve accommodating cavity 31 and being connected to institute
State the second channel 33 of overflow valve accommodating cavity 31, injecting glue connector 4 and pumping hole 12, and second channel by glue injection cavities 34 with it is described
Injecting glue connector 4 is connected.
The first passage 32 is L-shaped structure, and second channel 33 is " π " type structure.
The utility model by first passage design " L " type, can preferably realize pressure buffer, can effectively avoid due to
Pressure is excessive, and causes to make colloidal sol stop the impact in storage glue portion 30.Second channel is designed as " π " type structure, can be made molten
Glue accumulates more colloidal sols in colloidal sol channel, so as to realize quick pressure maintaining and pressurization.
It is additionally provided with handle 34 on the feeding cover 26, is equipped with quartz glass 35 and quartz glass in sizing material monitoring material position mouth 29
Fixed lid 36.Threeway 37 is equipped in the injecting glue connector 4.
The above, the only preferable possible embodiments of the utility model, not to limit to the patent of the utility model
Range, thus it is all with the variation of equivalent structure made by the utility model description, it is all contained in the protection of the utility model