CN101559642A - Novel injection device for injection molding machine - Google Patents
Novel injection device for injection molding machine Download PDFInfo
- Publication number
- CN101559642A CN101559642A CNA2009100397462A CN200910039746A CN101559642A CN 101559642 A CN101559642 A CN 101559642A CN A2009100397462 A CNA2009100397462 A CN A2009100397462A CN 200910039746 A CN200910039746 A CN 200910039746A CN 101559642 A CN101559642 A CN 101559642A
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a novel injection device for an injection molding machine, comprising a hollow stator and a columnar rotor, wherein, the hollow stator is provided with a cylinder inner cavity; and the columnar rotor is arranged in the inner cavity of the stator and is eccentric to the stator. The rotator is driven by a driving device and can positively and reversely turn within the range of 0-180 degrees; a blade is arranged in a through hole at the radial section of the rotor, wherein, the two ends of the blade slide on the periphery of the inner cavity wall of the stator all the time when the blade turns with the rotor and slides in the through hole; the shortest distance from the vertical axis of the rotor to the inner cavity wall of the stator is equal to the radius of the rotator; the inner cavity of the stator is divided into two spaces by the external surface of the rotor and the blade, wherein, one space is a material-filling space; the stator surface at which the material-filling space is arranged is respectively provided with a charge hole for receiving molten plastic and a discharge hole which is connected with the charge hole of a mould; and when the volume of the material-filling space changes from large to small, the discharge hole is communicated with the mould and is not communicated with the charge port, when the volume of the material-filling space changes from small to large, the charge hole opens and works. The invention has simple structure, low manufacture and maintenance cost and wide application range.
Description
[technical field]
The present invention relates to a kind of injection machine, refer in particular to the injection device that in the injection machine plastic cement of molten condition is expelled to die for molding.
[background technology]
In existing full-automatic injection mold, the process that plastic cement is expelled to mould mainly adopts following dual mode: 1), be to drive injection screw with ball screw to come injecting glue, it is by the driven by motor feed screw nut ball screw to be moved back and forth, thereby realize the continuous injection moulding process of circulation, but the cost height of screw mandrel, bring maintenance cost also high, and single screw mandrel can't realize that high thrust drives, must use a plurality of motors to drive a plurality of screw mandrel synchronization actions simultaneously, and the Synchronization Control more complicated of many motors multifibres bar, this will certainly increase use cost greatly, and this structure is difficult in industry be used widely; 2), injection work is finished in the reciprocating motion of adopting crankshaft-link rod to drive injection screw, its maintenance cost is lower, but because the movement locus of curved bar could produce bigger injection force greatly, this can increase the volume of injection device greatly, thereby can improve its production cost.
[summary of the invention]
The objective of the invention is to be to overcome the deficiencies in the prior art, a kind of simple in structure, production and maintenance cost is low, injection force the is big novel injection device that is used for injection machine are provided.
In order to solve the technical problem of above-mentioned existence, the present invention adopts following technical proposals:
A kind of novel injection device that is used for injection machine, it includes hollow stator with cylindrical cavity, place this bore of stator and with the cylindrical rotors of stator off-centre, described rotor is driven by drive unit and can positive and negative rotation in 0-180 degree scope; In the radial section through hole of described rotor, be provided with blade, described blade follow rotor rotation and in this through hole, slide in its two ends slide on the internal chamber wall periphery at stator all the time; The vertical axis of described rotor equals the radius of rotor to the beeline of bore of stator wall; Described bore of stator is separated into two spaces by this rotor outer surface and blade, and one of them space is the charge space, has charging aperture that receives molten plastic respectively and the discharging opening that is connected with the die feeding mouth on the stator surface at this place, charge space; Described charge spatial volume from large to small the time described discharging opening communicate with mould and described charging aperture is obstructed, described charging aperture is opened work when described charge spatial volume is changed from small to big.
To the above-mentioned improvement project that is used for the novel injection device of injection machine, described discharging opening is located at the narrower side in this charge space.
Compared with prior art, 1), the present invention mainly includes stator, rotor and blade the invention has the beneficial effects as follows:, on stator, be provided with charging aperture and discharging opening, in use, at first the plastic cement from the charging aperture transporting molten enters in the charge space, seals the backflow that prevents material when injecting at charging aperture after charging is finished; Follow the direction quick rotation that drive unit work drive rotor and blade narrow down gradually toward the charge spatial volume, along with dwindling of charge spatial volume, so melten gel is wherein injected die for molding, produced required product by discharging opening; Last drive unit is worked in the other direction rotor and blade is resetted, at this moment the charge spatial volume is changed from small to big, finish shot process, carry out injection work so circularly, simple in structure, production of the present invention as can be seen and maintenance cost are low, the power of motor of choosing suitable drive mechanism according to desired injection force size gets final product, the complete like this briquetting pressure needs that can satisfy different product, and it is applied widely.
The present invention is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
[description of drawings]
Fig. 1 is the stereogram of the embodiment of the invention;
Fig. 2 is the assembling schematic diagram of the embodiment of the invention;
Fig. 3 is the structural representation of the embodiment of the invention;
Fig. 4 is the upward view of the embodiment of the invention.
[specific embodiment]
The present invention is a kind of novel injection device that is used for injection machine, it includes hollow stator 1 with cylindrical cavity 11, place this stator 1 inner chamber 11 and with the cylindrical rotors 2 of stator 1 off-centre, described rotor 2 drives back positive and negative rotation in 0-180 degree scope by drive unit (not drawing among the figure), load onto end cap (not drawing among the figure) at the stator two ends inner chamber is closed, the axle head of two ends of rotor can drive rotation by the drive unit that is located at outside the stator after end cap stretches out like this; In the radial section through hole 21 of described rotor 2, be provided with blade 3, described blade 3 follow that rotor 2 rotates and in this through hole 21, slide in its two ends slide on the internal chamber wall periphery at stator 1 all the time; The vertical axis A of described rotor 2 equals the radius of rotor 2 to the beeline of stator 1 internal chamber wall, and a part of outer surface of rotor is contacted with internal chamber wall all the time, thereby can prevent that when rotating melten gel spills into that other is local and slattern; Described stator 1 inner chamber 11 is separated into two space D by these rotor 2 outer surfaces and blade 3, one of them space is charge space D1, has charging aperture 12 that can receive molten plastic and the discharging opening 13 that is connected with the die feeding mouth on stator 1 surface at this D1 place, charge space; Described charge space D1 volume from large to small the time described discharging opening 13 communicate with mould and described charging aperture is obstructed, the described charging aperture work of opening comes charging when described charge spatial volume is changed from small to big, thereby is that the injection moulding of next circulation replenishes sizing material.The present invention in use, at first the plastic cement from charging aperture 12 transporting moltens enters in the D1 of charge space, seals the backflow that prevents at when injection material at charging aperture after charging is finished; Follow the direction quick rotation that drive unit work drive rotor 2 and blade 3 narrow down gradually toward the charge spatial volume, along with dwindling of charge spatial volume, so melten gel is wherein injected die for molding, produced required product by discharging opening 13; Last drive unit is worked in the other direction rotor and blade is resetted, and at this moment the charge spatial volume is changed from small to big, and finishes shot process, carries out charging, injection moulding and the work that resets so circularly.Simple in structure, production of the present invention and maintenance cost are low, and the power of motor of choosing suitable drive mechanism according to desired injection force size gets final product, the complete like this briquetting pressure needs that can satisfy different product, and it is applied widely.
Described discharging opening 13 generally is provided in a side of the narrower side of this charge space D1, can increase the pressure of injection like this.
The device that similar check valve and so on can be set on discharging opening 13 and charging aperture 12 is controlled discharging opening respectively can only discharging and charging aperture can only charging.
Claims (2)
1, a kind of novel injection device that is used for injection machine, it is characterized in that: include have cylindrical cavity (11) hollow stator (1), place this stator (1) inner chamber (11) and with the eccentric cylindrical rotors (2) of this stator (1), described rotor (2) is driven by drive unit and can positive and negative rotation in 0-180 degree scope; In the radial section through hole (21) of described rotor (2), be provided with blade (3), described blade (3) follow that rotor (2) rotates and in this through hole (21) in the slip its two ends on the internal chamber wall periphery of stator (1), slide all the time; The vertical axis (A) of described rotor (2) equals the radius of rotor (2) to the beeline of stator (1) internal chamber wall; Described stator (1) inner chamber is separated into two spaces (D) by this rotor (2) outer surface and blade (3), one of them space is charge space (D1), has charging aperture (12) that receives molten plastic respectively and the discharging opening (13) that is connected with the die feeding mouth on stator (1) surface at this place, charge space (D1); Described charge space (D1) volume from large to small the time described discharging opening (13) communicate with mould and described charging aperture (12) is obstructed, described charging aperture (12) was opened work when volume changed from small to big in described charge space (D1).
2, a kind of novel injection device that is used for injection machine according to claim 1 is characterized in that: described discharging opening (13) is located at the narrower side in this charge space (D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100397462A CN101559642A (en) | 2009-05-19 | 2009-05-19 | Novel injection device for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100397462A CN101559642A (en) | 2009-05-19 | 2009-05-19 | Novel injection device for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101559642A true CN101559642A (en) | 2009-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100397462A Pending CN101559642A (en) | 2009-05-19 | 2009-05-19 | Novel injection device for injection molding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN101559642A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837414A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Method and device for stabilizing melt extrusion of blade extruder |
| CN102837415A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Exhaust method for blade extruder and exhaust type blade extruder |
| WO2015172751A1 (en) * | 2014-05-15 | 2015-11-19 | 华南理工大学 | Plasticizing delivery method and device using eccentric rotor and having pulsed volume deformation |
-
2009
- 2009-05-19 CN CNA2009100397462A patent/CN101559642A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837414A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Method and device for stabilizing melt extrusion of blade extruder |
| CN102837415A (en) * | 2012-09-22 | 2012-12-26 | 广州华新科实业有限公司 | Exhaust method for blade extruder and exhaust type blade extruder |
| CN102837414B (en) * | 2012-09-22 | 2015-03-11 | 广州华新科实业有限公司 | Method and device for stabilizing melt extrusion of blade extruder |
| WO2015172751A1 (en) * | 2014-05-15 | 2015-11-19 | 华南理工大学 | Plasticizing delivery method and device using eccentric rotor and having pulsed volume deformation |
| RU2682637C2 (en) * | 2014-05-15 | 2019-03-19 | Саус Чайна Юниверсити Оф Текнолоджи | Method and device for plasticization and feed with pulsed volumetric deformation using eccentric rotor |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091021 |