CN102642271B - Double screw diagonally symmetric guide nozzle contact device of injection molding machine - Google Patents
Double screw diagonally symmetric guide nozzle contact device of injection molding machine Download PDFInfo
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- CN102642271B CN102642271B CN201110414781.5A CN201110414781A CN102642271B CN 102642271 B CN102642271 B CN 102642271B CN 201110414781 A CN201110414781 A CN 201110414781A CN 102642271 B CN102642271 B CN 102642271B
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- screw
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- barrel
- contact device
- nozzle contact
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Abstract
The invention provides a double screw diagonally symmetric guide nozzle contact device of an injection molding machine. The device is characterized in that lead screw drive components are respectively installed in the diagonally symmetric positions of a charging barrel fixing part; lead screws are fixed on the charging barrel fixing part after being assembled with bearings; synchronous pulleys are installed on the lead screw rods; a drive motor is installed on the charging barrel fixing part and simultaneously drives the two pulleys by a synchronous belt; an inner barrel is installed on lead screw nuts; the screw rods pass through the inner barrel; an outer barrel is installed outside the inner barrel; a sliding guide sleeve is installed at the end of the outer barrel; spring extension parts are fixed on a mold fixing template after being connected with the other end of the inner barrel by a connecting rod; and the spring extension parts move to compress springs to generate nozzle contact forces.
Description
Technical field
The present invention relates to a kind of nozzle contact device of injection machine.
Background technology
Understand that a kind of nozzle contacts device by Chinese patent literature cn 2717659y, injecting assembly is arranged on a guiding and slides
On seat, the lead screw gear that slide is installed on the linear drive apparatus below it by drives.Therefore injecting assembly is permissible
Advance, backward movement are realized on the linear drive apparatus of leading screw tumbler composition.Connect when injecting assembly advance and with mould
When tactile, motor continues to drive leading screw rotation to make screw realize moving forward and backward, and makes advance and retreat camber of spring produce spring force.Should
Spring force is transferred to injecting assembly by connector, leading screw so that the nozzle of barrel front end installation of injecting assembly and mould produce
A raw contact force, is revealed with avoiding producing between nozzle and mould gate.Nozzle touch force can pass through elastic constant and spring
Deformation stroke is adjusted.The shortcoming that this nozzle contacts device is, the injection mold half module of the incoming fixation of this contact force and solid
Solid plate, is an asymmetric power for fixed form.Therefore the larger bending moment of ratio can be caused, it will cause
Fixed form and the inclination being fixed on the injection mold above it, can affect the production of product, more likely can lead to pull bar, template
Fracture damage.Simultaneously can output nozzle and cast gate one angle of axis output skew, lead to nozzle tight with cast gate
Close combination, leads to the leakage of injection raw material to occur.
Understand that this nozzle contacts device and solves the bending that asymmetric power produces by Japanese documentation jp 9-277306a
Moment problem.This device passes through same in two ball-screws of the symmetrical setting centered on nozzle in the both sides of injecting unit, motor
Walk with the synchronous screw rotation driving two ball-screws, the screw mandrel to realize ball-screw realizes advance, backward movement.And two
Individual screw mandrel is separately fixed on fixed form, is achieved in injecting assembly with respect to the motion of fixed form and output nozzle connects
Touch.But the shortcoming that this nozzle contacts device is: the lubrication oil filler of ball-screw is on screw, and present screw does
Rotary motion, therefore lubricating will be a cumbersome problem in some instances it may even be possible to adopt because realizing self-lubricate manually
Lubrication；Another shortcoming, screw mandrel, comparatively for realizing moving forward and backward, so interferes limit to producing in frame for movement
System, and there may be potential safety hazard；Also one shortcoming, screw mandrel directly engages guiding with screw, without it in motion process
His guide function mechanically.It is uneven for therefore two leading screws may being thus resulted in because processing, installation etc. are former, so
The asymmetric of power can be led to, or even serious meeting leads to two leading screws to transmit not parallel and kill.
Content of the invention
The present invention provides injection machine double lead-screw diagonally symmetrical directional nozzle contact device in view of the above problems, it can be avoided that
By the phenomenon of incoming for bending moment fixed form or injecting assembly, guaranteed by guider will not be due to processing, installation simultaneously
Equal error and lead to two leading screws that unparalleled phenomenon occurs.
The technical scheme that present invention solution above-mentioned technical problem is adopted is:
Injection machine double lead-screw diagonally symmetrical directional nozzle contact device, in the diagonal symmetric position of a barrel fixed component
It is respectively mounted lead screw transmission assembly, leading screw, by being fixed on after being combined with bearing in barrel fixed component, is pacified on leading screw screw mandrel
Equipped with synchronous pulley, motor is arranged in barrel fixed component, and motor simultaneously drives two belt wheels by Timing Belt；In silk
One inner core is provided with thick stick screw, screw mandrel passes through this inner core, side is provided with an outer tube outer tube, is provided with the end of outer tube
Slide-and-guide set；It is fixed on mould again after the other end of inner core is connected and is connected with telescopic spring part by a connecting rod to fix
In template, telescopic spring part motion compresses spring produces nozzle touch force.
Described connecting rod is connected with telescopic spring part by hinge, and chain connection can prevent the rotation of inner core may be used simultaneously
To adjust the center of nozzle and mould fixed form in the horizontal direction.
Described telescopic spring part includes fixed plate, spring and connecting seat, and connecting rod is fixed with connecting seat, and spring is arranged on
Between fixed plate and connecting seat, fixed plate is fixed on mould fixed form, and connecting seat motion compresses spring produces nozzle contact
Power.
Motor is rotated by belt wheel drive screw, due to hinged effect, the motion before and after therefore screw can be carried out
To realize moving forward and backward of inner core, the guide effect that inner core is covered by outer tube terminal guide, can parallel carry out with barrel center line
Linear motion, and the end of inner core is fixed on mould fixed form by hinge, therefore can realize nozzle with respect to and mould
The relative motion of fixed plate simultaneously produces nozzle touch force.
Because this nozzle touch force is symmetrically diagonal distribution, therefore there is not showing incoming for bending moment fixed form
As.
Brief description
Fig. 1 is the equiaxial structure chart of injection member of the present invention.
Fig. 2 is the top view of injection member of the present invention.
Fig. 3 is that motor, belt wheel and the Timing Belt of the present invention synchronously drive sectional view.
Fig. 4 is nozzle contact lead screw transmission assemble cross-section (nozzle advance contact condition).
Fig. 5 is nozzle contact lead screw transmission assemble cross-section (nozzle fallback state).
Specific embodiment
With reference to the accompanying drawings embodiments of the invention are illustrated.
In FIG, 1 is mould fixed form, and 3 is barrel fixed form, and the other parts such as 3,4,5 and pull bar constitute injection
Part.It is fixed with barrel assembly in the middle of barrel fixed form 3.2a and 2b is diagonally symmetrically to be fixed on barrel fixed form
The nozzle contact lead screw transmission assembly of same shape.
In figure 3,6a with 6b is attached to the synchronous pulley that nozzle contacts on screw mandrel in lead screw transmission assembly respectively, and 7 are
Synchronous belt, the axle of motor 9 is fixed with electrical machine belt pulley 8, jointly drives synchronous pulley 6a and 6b by Timing Belt, by motor
Rotation passes to screw mandrel, realizes the linear motion of screw by the characteristic of leading screw.
In figures 4 and 5, bearing 10 and fixed cover 11 are fixed on barrel fixed form 3, and the outside of fixed cover 11 is passed through
Nut 12 is fixed with an outer tube 15.Screw 13 is fixed with an inner core 16 by nut 14.It is provided with the end of outer tube 15
Fairlead 18, this fairlead is fitted close so that inner core is accurately moved along a straight line with inner core 16.
In Figure 5, nut 19 fixed connecting rod 20 is passed through in the end of inner core 16, and connecting rod 20 is connected through the hinge and is connecting
On seat 22.
Above-mentioned fixed plate 23, spring 21 and connecting seat 22 are fixed on mould fixed form 1 by bolt 24, connecting seat 22
Nozzle touch force can be produced with motion compresses spring 21.
In schematic structure, when rotation is delivered on screw mandrel motor, screw mandrel is that screw thread engages with screw, thus permissible
Motion before and after making screw carry out, when screw moves to belt wheel direction, nozzle moves to mould fixed form direction, works as nozzle
During with contacting dies, motor continues to output rotation makes screw continue motion, and after compression spring a certain amount locks motor internal contracting brake
Fixed.Thus persistently keep nozzle touch force.Due to being the lead screw transmission assembly symmetrically diagonally fixed, the spray therefore producing respectively
Mouth contact force is also symmetrically diagonal.So ensuring that will not be by incoming for bending moment mould fixed form.When screw is to mould
During fixed form motion, nozzle is far away from mould direction.
Claims (4)
1. injection machine double lead-screw diagonally symmetrical directional nozzle contact device it is characterised in that: right in a barrel fixed component
Angle symmetric position is respectively mounted lead screw transmission assembly, leading screw by being fixed on after combining with bearing in barrel fixed component, in silk
Synchronous pulley is provided with thick stick screw mandrel, motor is arranged in barrel fixed component, and motor simultaneously drives two by Timing Belt
Individual belt wheel；One inner core is provided with screw-nut, screw mandrel passes through this inner core, side is provided with an outer tube, in outer tube outer tube
End slide-and-guide set is installed；It is solid again after the other end of inner core is connected and is connected with telescopic spring part by a connecting rod
It is scheduled on mould fixed form, telescopic spring part motion compresses spring produces nozzle touch force.
2. injection machine double lead-screw as claimed in claim 1 diagonally symmetrical directional nozzle contact device it is characterised in that: described company
Extension bar is connected with telescopic spring part by hinge.
3. injection machine double lead-screw as claimed in claim 1 or 2 diagonally symmetrical directional nozzle contact device it is characterised in that: institute
State telescopic spring part and include fixed plate, spring and connecting seat, connecting rod is fixed with connecting seat, spring is arranged on fixed plate and company
Between joint chair, fixed plate is fixed on mould fixed form, and connecting seat motion compresses spring produces nozzle touch force.
4. injection machine double lead-screw as claimed in claim 3 diagonally symmetrical directional nozzle contact device it is characterised in that: described solid
Fixed board, spring and connecting seat are bolted on mould fixed form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414781.5A CN102642271B (en) | 2011-12-13 | 2011-12-13 | Double screw diagonally symmetric guide nozzle contact device of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110414781.5A CN102642271B (en) | 2011-12-13 | 2011-12-13 | Double screw diagonally symmetric guide nozzle contact device of injection molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102642271A CN102642271A (en) | 2012-08-22 |
| CN102642271B true CN102642271B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110414781.5A Active CN102642271B (en) | 2011-12-13 | 2011-12-13 | Double screw diagonally symmetric guide nozzle contact device of injection molding machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273615A (en) * | 2013-05-08 | 2013-09-04 | 宁波海洲机械有限公司 | Oil-electric composite injection molding machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203141748U (en) * | 2011-12-13 | 2013-08-21 | 宁波长飞亚塑料机械制造有限公司 | Double-screw rod diagonal symmetrical directing nozzle contact device of injection molding machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06134808A (en) * | 1992-10-26 | 1994-05-17 | Sumitomo Jukikai Plast Mach Kk | Plasticizing travel device in motor-driven injection molding machine |
| JPH09277306A (en) * | 1996-04-19 | 1997-10-28 | Toyo Mach & Metal Co Ltd | Nozzle touch mechanism of injection molding machine |
| JP3351512B2 (en) * | 1998-09-22 | 2002-11-25 | 大和化成工業株式会社 | Electric injection molding equipment |
| JP2000263604A (en) * | 1999-03-18 | 2000-09-26 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| JP4571336B2 (en) * | 2001-05-07 | 2010-10-27 | 東芝機械株式会社 | Electric direct pressure mold clamping device for injection molding machine |
| JP4146623B2 (en) * | 2001-05-22 | 2008-09-10 | 東芝機械株式会社 | Direct pressure electric mold clamping device for injection molding machine |
| JP4626870B2 (en) * | 2005-05-13 | 2011-02-09 | 株式会社ニイガタマシンテクノ | Drive unit for injection molding machine |
-
2011
- 2011-12-13 CN CN201110414781.5A patent/CN102642271B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203141748U (en) * | 2011-12-13 | 2013-08-21 | 宁波长飞亚塑料机械制造有限公司 | Double-screw rod diagonal symmetrical directing nozzle contact device of injection molding machine |
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| Publication number | Publication date |
|---|---|
| CN102642271A (en) | 2012-08-22 |
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