CN101804687A - One cylinder type hybrid injection unit - Google Patents

One cylinder type hybrid injection unit Download PDF

Info

Publication number
CN101804687A
CN101804687A CN201010114330A CN201010114330A CN101804687A CN 101804687 A CN101804687 A CN 101804687A CN 201010114330 A CN201010114330 A CN 201010114330A CN 201010114330 A CN201010114330 A CN 201010114330A CN 101804687 A CN101804687 A CN 101804687A
Authority
CN
China
Prior art keywords
screw rod
cylinder type
injection unit
type hybrid
motor
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.)
Pending
Application number
CN201010114330A
Other languages
Chinese (zh)
Inventor
张炳根
柳盛喆
禹淙元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LS Mtron Ltd
Original Assignee
LS Mtron Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LS Mtron Ltd filed Critical LS Mtron Ltd
Publication of CN101804687A publication Critical patent/CN101804687A/en
Pending legal-status Critical Current

Links

Images

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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/53—Means for plasticising or homogenising the moulding material or forcing it into the mould using injection ram or piston
    • B29C45/531—Drive means therefor
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding

Abstract

The present invention proposes a kind of one cylinder type hybrid injection unit, proposed more specifically that a kind of screw rod and motor interconnect and the one cylinder type hybrid injection unit of the power transmission shaft that do not need to add, thereby realized simple injecting unit structure.This one cylinder type hybrid injection unit comprises: cylindrical shell, and it has the space of ccontaining synthetic resin raw material via hopper injection; Screw rod, it is set to reach forward and moves backward and rotation in the axial direction in cylindrical shell; Motor, it is directly passed to screw rod along the axial setting of screw rod and with rotary power; Piston, it is connected to an end of screw rod, moves point-blank to make screw rod by oil pressure; And thrust bearing, it has fuel feeding and flow into zone wherein and thrust passed to piston.

Description

One cylinder type hybrid injection unit
Technical field
The present invention relates to a kind of one cylinder type hybrid injection unit, relate more specifically to that a kind of screw rod and motor interconnect and the one cylinder type hybrid injection unit of the power transmission shaft that do not need to add, realized the injecting unit of simple structure thus.
Background technology
Usually, the major function of the injecting unit of injection forming equipment is plasticizing and injection.Plasticizing process makes the synthetic resin raw material be fed in the screw rod via hopper, and the screw rod rotation makes the raw material fusing to utilize frictional energy.Injection is to make plasticizing institute raw material melted be expelled to process in the mold cavity via the outlet of cylindrical shell.
For injecting unit, single casing and two-cylinder type are arranged.In the single casing injecting unit, on single axle, carry out plasticizing process and injection process simultaneously; In the two-cylinder type injecting unit, on different axles, carry out plasticizing process and injection process.
Recently, as injecting unit, developed hybrid injection unit and only substituted injecting unit based on hydraulic pressure with fluid pressure type and DYN dynamic advantage.
In this hybrid injection unit, implement plasticizing in electronic mode, implement injection with hydraulic way.In addition, usually by implementing structural scheme with the hydraulic motor that uses in motor and the deceleration device replacement liquid pressure type injecting unit.
Fig. 1 is the cutaway view that the existing single casing injecting unit that discloses in No. 5173312 United States Patent (USP) is shown.
With reference to Fig. 1, existing single casing injecting unit comprises screw rod 22, quill (quill) 28, quill insert 32, motor 36, injection ram 40, cylinder 42 and thrust bearing 44 and 50.
In conventional device, the rotary power of motor 36 is passed to quill insert 32, the interior side engagement of the spline of quill insert 32 and quill 28, and rotary power is passed to the screw rod 22 that is connected with quill 28 subsequently.
When the injection hydraulic oil, injection ram 40 allows quill 28 to move point-blank, thereby the screw rod 22 that engages with quill 28 is moved point-blank.
The linear thrust of the rotary power of motor 36 and injection ram 40 is delivered to quill 28 simultaneously.Although quill 28 is rotated motion and two kinds of motions of rectilinear motion, thrust bearing 44 and 50 assists quill 28 suitably to move in the relative position of maintainance set tubular axis 28 in cylinder 42.
In above-mentioned existing single casing injecting unit, the rotary power of motor 36 is not directly delivered to screw rod 22, but power transmission shaft (as quill 28 and quill insert 32) is connected between motor 36 and the screw rod 22.Therefore, when the size of injecting unit increased, it is complicated that mechanical connection becomes, and the cost of manufacture process also can increase.
In addition, although thrust bearing 44 and 50 is used to allow quill 28 to keep its relative position in cylinder 42 and suitably moves, the frictional force that acts on thrust bearing 44 and 50 places causes the rotary power transmission loss of motor 36.
Therefore, need a kind of injection operation precision injecting unit very high, simple in structure and cheap for manufacturing cost.
Summary of the invention
Technical problem
The present invention proposes a kind of in injection operation screw rod and motor interconnect and the one cylinder type hybrid injection unit of the power transmission shaft that do not need to add has been realized simple injecting unit structure thus.
Technical scheme
On the one hand, a kind of one cylinder type hybrid injection unit that comprises following parts has been proposed: cylindrical shell, it has the space of ccontaining synthetic resin raw material via hopper injection; Screw rod, it is set to reach forward and moves backward and rotation in the axial direction in cylindrical shell; Motor, it is directly passed to screw rod along the axial setting of screw rod and with rotary power; Piston, it is connected to an end of screw rod, moves point-blank to make screw rod by oil pressure; And thrust bearing, it has fuel feeding and flow into zone wherein and thrust passed to piston.
Thrust bearing can comprise first capping and second capping that is used to prevent the oil leakage.
One cylinder type hybrid injection unit also can comprise the hydraulic means that is used for oil is expelled to thrust bearing.
One cylinder type hybrid injection unit also can comprise coupling, and this coupling is set to the rotor of motor and has spline along week in it, and screw rod has spline at the one end along its periphery, makes the splined engagement of this spline and shaft coupling.
Beneficial effect
In one cylinder type hybrid injection unit, screw rod and motor along the axial setting of piston so that designs simplification, thereby reduce length, size and the manufacturing cost of injecting unit.
In addition, in one cylinder type hybrid injection unit, the rotary power of motor is directly transferred to screw rod, and without additional power transmission shaft, thereby makes the transmission of power minimization of loss of motor.
Description of drawings
By following detailed description with the accompanying drawing, above-mentioned aspect, feature and the advantage with other of disclosed exemplary embodiment will become obviously, wherein:
Fig. 1 is the cutaway view that shows existing one cylinder type hybrid injection unit; And
Fig. 2 and Fig. 3 show the cutaway view of one cylinder type hybrid injection unit according to an embodiment of the invention.
The specific embodiment
To these exemplary embodiments be described more fully hereinafter with reference to the accompanying drawing that shows exemplary embodiment now.Yet the present invention can realize by multiple different form, and should not be regarded as being confined to exemplary embodiment given herein.On the contrary, provide these exemplary embodiments, make the present invention become comprehensive and complete, and scope of the present invention is fully conveyed to those skilled in the art.In specification, with omitting the details of well-known characteristic and technology, to avoid unnecessarily making present embodiment become unclear.
Term is only in order to describe specific embodiment as used herein, but not is intended to limit the present invention.As used herein, singulative " ", " one " and " being somebody's turn to do " are intended to also comprise plural form, unless that this paper points out clearly is really not so.In addition, the restriction of quantity is not represented in term " ", " one 's " etc. use, and there is at least one mentioned things in expression.It should also be understood that, term " has " when using in specification, when " comprising " and/or " comprising ", illustrate to have described feature, zone, integral body, step, operation, element and/or parts, do not exist or additional one or more other feature, zone, integral body, step, operation, element and/or their combination but do not get rid of.
Unless otherwise defined, all as used herein terms (comprising technical term and scientific terminology) have the implication identical with the implication of those of ordinary skill in the art's common sense.It is also understood that such as the term that in common dictionary, defines and to be interpreted as having the implication that conforms in the implication with in the context of the present invention of correlation technique with them; And will can not be interpreted as Utopian or too formal meaning, unless so limit especially at this.
In the accompanying drawings, the identical Reference numeral in the accompanying drawing is represented components identical.For the sake of clarity, shape, size and zone etc. in the scalable accompanying drawing.
Hereinafter, describe one cylinder type hybrid injection unit with reference to the accompanying drawings in detail according to exemplary embodiment.
Fig. 2 and Fig. 3 are for being illustrated in plasticizing and the injection process cutaway view according to the one cylinder type hybrid injection unit of embodiment respectively.
With reference to Fig. 2, comprise cylindrical shell (barrel) 110, screw rod 120, motor 130, piston 140 and thrust bearing 150 according to the one cylinder type hybrid injection unit of embodiment.
Cylindrical shell 110 is provided with the hopper (not shown) and is positioned at the injection housing 160 of one side, and the synthetic resin raw material is introduced in the cylindrical shell 110 via hopper (hopper).The synthetic resin raw material of being introduced is melted by the running of screw rod 120, and the outlet 112 that forms via the end at cylindrical shell 110 is discharged in the mould.
According to this embodiment, the synthetic resin raw material fusing of introducing in order to make can optionally be provided with the heater (not shown) and supply with heat at the wall surface of cylindrical shell 110.
Screw rod 120 is arranged in the cylindrical shell 110, and the periphery of screw rod is provided with protuberance 122 vertically.Protuberance 122 forms continuously with spiral-shaped, and with the contacting in interior week of cylindrical shell 110.
When screw rod 120 rotations, be introduced in synthetic resin raw material and protuberance 122 frictions in the cylindrical shell 110, and move to the end of cylindrical shell 110.The synthetic resin raw material is melted by the heat energy that frictional energy and heater provided that friction produced with protuberance 122.
Motor 130 is along the axial setting of screw rod 120, rotary power is passed to screw rod 120.Motor 130 can be hydraulic or power type.Under the situation of power type motor, the advantage that have that energy consumption reduces, repeatability excellence and noise reduces.
Coupling 132 is connected to the rotor of motor 130, and the rotary power of motor 130 is passed to coupling 132.Spline (spline) 134 is provided with along coupling 132 in interior week.In addition, screw rod 120 is provided with spline (spline) 124 at the place, end that is connected to piston 140 along periphery, and spline 124 engages with the spline 134 of coupling 132.Therefore, the rotary power of motor 130 is delivered to screw rod 120 via coupling 132, thereby makes screw rod 120 rotations.At this, different with correlation technique, the rotary power of motor 130 is via additional power transmission shaft transmission, but is directly transferred to screw rod 120, and the energy slippages that causes because of bearing etc. is minimized.
Piston 140 is connected to the end of screw rod 120, and comprises piston rod 142 and piston head 144.At this, the periphery of piston head 144 is set to the periphery greater than piston rod 142.
Thrust bearing (thrust housing) 150 is provided with grease chamber 156, and hydraulic oil flow in this grease chamber.When oil was introduced in grease chamber 156, thrust was passed to piston 140.Thrust bearing 150 comprises first capping (packing cover), 152 and second capping 154, and described first capping 152 and second capping 154 are separately positioned on front side and rear side on the direction that piston 140 straight lines move.
The oil that first capping 152 and second capping 154 are set to prevent to flow in the thrust bearing 150 leaks.The rear side of second capping, 154 sealing thrust bearings 150; First capping 152 is provided with an opening, moves point-blank to allow piston rod 142.
Piston rod 142 can via the opening of first capping 152 towards or move away from thrust bearing 150.Yet, because the periphery of piston head 144 is greater than the opening of first capping 152, so piston head 144 can not move to stretch out from thrust bearing 150.
Hereinafter, the operational circumstances that description is had the cylinder type hybrid injection unit of above-mentioned structure.
The operation of injecting unit comprises: plasticizing operation is liquid by making screw rod 120 rotations with the solid melting synthetic resin; And injection operation, under high pressure with the fusing resin injection in mould.Fig. 2 shows the plasticizing operation, and Fig. 3 shows injection operation.
Calculating when being injected into the amount of the synthetic resin in the mould, the synthetic resin of the amount that is calculated is injected via the hopper (not shown).The synthetic resin raw material is expelled in the hopper continuously, so that be moved to the end of cylindrical shell 110, thereby the synthetic resin raw material accumulates in the end of cylindrical shell 110 continuously.
The synthetic resin raw material that gathers is along the axial applied thrust of screw rod 120, and therefore, screw rod 120 moves backward along the direction of arrow shown in Figure 2.In addition, the piston 140 with the engaged at end of screw rod 120 moves backward with screw rod.
Because screw rod 120 engages with the coupling 132 that is connected to motor 130 by spline 124 and spline 134, thus screw rod 120 can in mobile backward, rotate continuously, thereby carry out the fusion process of synthetic resin.In the time will being injected into an amount of synthetic resin in the mould and being transformed into molten condition by the heat of the rotary power of screw rod 120 and heater, plasticizing process is finished.
When plasticizing operation was finished, the synthetic resin that begins to carry out to accumulate in cylindrical shell 110 ends was expelled to the injection operation in the mould.Under the state that piston 140 moves in thrust bearing 150 in plasticizing process backward, when hydraulic oil was introduced in the thrust bearing 150 via the hydraulic means (not shown), piston 140 moved forward.Subsequently, the thrust of piston 140 moves screw rod 120 in cylindrical shell 110, and the synthetic resin that accumulates in the fusion of cylindrical shell 110 ends is injected in the mould.
Although illustrated and described exemplary embodiment, it will be appreciated by those skilled in the art that under the situation of the principle and scope of the present invention that do not break away from claims and limited, can carry out modification on various forms and the details to the present invention.
In addition, can carry out various modifications under the situation that not break away from essential scope of the present invention according to of the present invention being taught in, to adapt to specific situation or material.Therefore, the present invention will be not limited to as being used to implement the specific one exemplary embodiment that preferred forms of the present invention is described, and the present invention will comprise all embodiment that fall in the appended claims scope.

Claims (5)

1. one cylinder type hybrid injection unit comprises:
Cylindrical shell has the space of ccontaining synthetic resin raw material via hopper injection;
Screw rod is set to forward and moves backward and rotation in the axial direction in cylindrical shell;
Motor is directly passed to described screw rod along the axial setting of described screw rod and with rotary power;
Piston is connected to an end of described screw rod, moves point-blank to make described screw rod by oil pressure; And
Thrust bearing has fuel feeding and flow into zone wherein and thrust passed to described piston.
2. one cylinder type hybrid injection unit according to claim 1, wherein said thrust bearing comprise first capping and second capping that is used to prevent the oil leakage.
3. one cylinder type hybrid injection unit according to claim 1 also comprises the hydraulic means that is used for oil is expelled to described thrust bearing.
4. one cylinder type hybrid injection unit according to claim 1, wherein said motor are electro-motor.
5. one cylinder type hybrid injection unit according to claim 1 also comprises coupling, described coupling be set to described motor rotor and along described coupling interior week have spline,
Wherein screw rod has spline at the one end along the periphery of screw rod, makes the splined engagement of spline and described coupling of described screw rod.
CN201010114330A 2009-02-16 2010-02-20 One cylinder type hybrid injection unit Pending CN101804687A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0012457 2009-02-16
KR1020090012457A KR101115257B1 (en) 2009-02-16 2009-02-16 One cylinder type hybrid injection unit

Publications (1)

Publication Number Publication Date
CN101804687A true CN101804687A (en) 2010-08-18

Family

ID=42606715

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010114330A Pending CN101804687A (en) 2009-02-16 2010-02-20 One cylinder type hybrid injection unit

Country Status (2)

Country Link
KR (1) KR101115257B1 (en)
CN (1) CN101804687A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1094037A (en) * 1964-03-12 1967-12-06 Zdarske Strojirny A Slevarny Plasticizing and injection unit for injection moulding machines for thermoplastic materials
US3808953A (en) * 1971-09-15 1974-05-07 Krauss Maffei Ag Means for moving the screws of injection units in injection molding machines
JP2000313038A (en) * 1999-04-30 2000-11-14 Ge Toshiba Silicones Co Ltd Injection molding apparatus and method
US6394780B1 (en) * 1998-07-14 2002-05-28 Karl Hehl Injection molding unit for an injection molding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3595387B2 (en) * 1995-09-13 2004-12-02 三菱重工業株式会社 Injection molding machine
JP2004167978A (en) 2002-11-22 2004-06-17 Toshiba Mach Co Ltd Operation method for injection apparatus in injection molding machine
KR100550233B1 (en) * 2004-03-27 2006-02-08 엘에스전선 주식회사 Two-Cylinder Type Hybrid Injection Unit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1094037A (en) * 1964-03-12 1967-12-06 Zdarske Strojirny A Slevarny Plasticizing and injection unit for injection moulding machines for thermoplastic materials
US3808953A (en) * 1971-09-15 1974-05-07 Krauss Maffei Ag Means for moving the screws of injection units in injection molding machines
US6394780B1 (en) * 1998-07-14 2002-05-28 Karl Hehl Injection molding unit for an injection molding machine
JP2000313038A (en) * 1999-04-30 2000-11-14 Ge Toshiba Silicones Co Ltd Injection molding apparatus and method

Also Published As

Publication number Publication date
KR20100093326A (en) 2010-08-25
KR101115257B1 (en) 2012-02-15

Similar Documents

Publication Publication Date Title
EP1102669B2 (en) Two-stage electric injection unit and method for supplying plastic melt to an injection mold cavity
US7316553B2 (en) Drive assembly for rotating and translating a shaft
EP1733863B1 (en) Injection molding apparatus
US5863567A (en) Two-stage electric injection unit for a molding machine
CN1980783A (en) Injection moulding machine
KR20090007311A (en) Apparatus for plastifying pellets, in particular plastics pellets, and injection-moulding or extrusion system equipped with this apparatus
JP6281999B1 (en) Injection molding machine
US6068810A (en) Injection molding machine
JP2010031965A (en) Rotation-linear motion converting mechanism, and injection device using the mechanism and injection molding machine using the device
CN101804687A (en) One cylinder type hybrid injection unit
JP5144822B1 (en) Injection device
US6200127B1 (en) Bi-directional check ring for a two-stage injection unit
CN103770292A (en) Injection device of injection molding machine
CN101417494B (en) Plastic foam injection forming device
CN215434866U (en) Explosion type high-speed injection molding machine
JP6113636B2 (en) Injection molding machine
CN113290796A (en) Explosion type high-speed injection molding machine
US5173312A (en) Injection unit for plastic injection molding machine
CN107627568B (en) Synchronous plasticizing metering injection molding method and equipment based on eccentric rotor
CN110315724B (en) Injection molding machine
CN212021576U (en) Injection mechanism of injection molding machine
CN201304703Y (en) Injection molding device for expandable plastic
JP2008254233A (en) Injection molding machine and method for driving this machine
CN208084815U (en) Injection molding machine thrust holder structure
CN116118097A (en) Uninterrupted rotary feeding hydraulic injection molding machine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20100818