CN102642271A - 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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- CN102642271A CN102642271A CN2011104147815A CN201110414781A CN102642271A CN 102642271 A CN102642271 A CN 102642271A CN 2011104147815 A CN2011104147815 A CN 2011104147815A CN 201110414781 A CN201110414781 A CN 201110414781A CN 102642271 A CN102642271 A CN 102642271A
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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
Can know a kind of nozzle contact device by Chinese patent document CN 2717659Y, injecting assembly is installed on the guiding slide, slide through one be installed on the linear drive apparatus below it lead screw gear drive.So injecting assembly can be realized advancing on the linear drive apparatus that the leading screw tumbler is formed, backward movement.When injecting assembly advanced and contacts with mould, motor continues to drive the leading screw rotation made screw realize seesawing, and makes the advance and retreat camber of spring produce spring force.This spring force is passed to injecting assembly through connector, leading screw, and the nozzle and the mould that make the barrel front end of injecting assembly install produce a contact force, to avoid producing leakage between nozzle and the mould gate.Nozzle touch force can be adjusted through elastic constant and camber of spring stroke.The shortcoming of this nozzle contact device is that this contact force is imported fixing injection mold half module and fixed form into, is an asymmetric power for fixed form.Therefore can cause bigger bending moment, it will cause fixed form and the inclination that is fixed on the injection mold above it, can influence the production of goods, more may cause the fracture damage of pull bar, template.Simultaneously can the output nozzle and the skew of the angle of axis output of cast gate, cause nozzle to combine with cast gate is tight, cause the leakage of injection raw material to take place.
Can know that by Japanese documentation JP 9-277306A this nozzle contact device has solved the bending moment problem that asymmetric power produces.This device is centrosymmetric two ball-screws that are provided with in the both sides of injecting unit with nozzle, and motor realizes that through the screw rotation of two ball-screws of band driven in synchronism synchronously the screw mandrel of ball-screw is realized advancing, backward movement.And two screw mandrels are separately fixed on the fixed form, realize motion and the output nozzle touch force of injecting assembly with respect to fixed form like this.But the shortcoming of this nozzle contact device is: the lubricated oil filler of ball-screw is on screw, and screw rotates now, and therefore lubricated will be a cumbersome problem, even possibly adopt manually lubricated because of realizing self-lubricate; Another shortcoming, screw mandrel are used to realize seesawing comparatively speaking, interfere restriction to producing on the frame for movement like this, and possibly have potential safety hazard; Shortcoming also, screw mandrel directly lead with the screw engagement in motion process, and do not have other guide functions mechanically.Therefore may be owing to processing, installation etc. former thereby to cause two leading screws be uneven, can cause the asymmetric of power like this, even serious meeting causes two leading screws transmission not parallel and kill.
Summary of the invention
The present invention provides injection machine mariages thick stick diagonal angle symmetry directional nozzle contact device in view of the above problems; Can avoid bending moment is imported into the phenomenon of fixed form or injecting assembly, guaranteeing through guider simultaneously can be owing to processing, installation equal error cause two leading screws unparalleled phenomenon to occur.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Injection machine mariages thick stick diagonal angle symmetry directional nozzle contact device; Symmetric position is installed the lead screw transmission assembly respectively at the diagonal angle of a barrel fixed part; Leading screw is fixed on the barrel fixed part after making up with bearing; On the leading screw screw mandrel, synchronous pulley is installed, drive motors is installed on the barrel fixed part, and motor drives two belt wheels simultaneously through synchronous band; One inner core is installed on the leading screw screw, and screw mandrel passes this inner core, and side is equipped with a urceolus outer tube, in the end of urceolus the slide-and-guide cover is installed; Connect through a connecting rod and be fixed on the mould fixed form after the telescopic spring parts are connected again at the other end of inner core, the telescopic spring component movement is compressed spring generation nozzle touch force.
Said connecting rod is connected with the telescopic spring parts through hinge, and the rotation while that the hinge connection can prevent inner core is the center of adjusted nozzle and mould fixed form in the horizontal direction.
Said telescopic spring parts comprise fixed head, spring and Connection Block, and connecting rod and Connection Block are fixed, and spring is arranged between fixed head and the Connection Block, and fixed head is fixed on the mould fixed form, and Connection Block motion compresses spring produces nozzle touch force.
Motor drives the screw mandrel rotation through belt wheel; Because hinged effect; Therefore the motion before and after screw can carry out realizes seesawing of inner core, and inner core can parallelly carry out rectilinear motion with the barrel center line through the guide effect of urceolus terminal guide cover; Therefore and the end of inner core fixes on the mould fixed form through hinges fixing, can realize that nozzle relatively and the relative motion of mold fixed plate and produce nozzle touch force.
Distribute because this nozzle touch force is symmetrical diagonal angle, therefore do not have the phenomenon of bending moment being imported into fixed form.
Description of drawings
Fig. 1 for injection member of the present invention etc. axle construction figure.
Fig. 2 is the vertical view of injection member of the present invention.
Fig. 3 is motor of the present invention, belt wheel and is with the driven in synchronism cutaway view synchronously.
Fig. 4 is nozzle contact lead screw transmission assembly cutaway view (nozzle advance contact condition).
Fig. 5 is nozzle contact lead screw transmission assembly cutaway view (nozzle fallback state).
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are described.
In Fig. 1, the 1st, the mould fixed form, the 3rd, the barrel fixed form, 3,4,5 and other parts such as pull bar constitute injection members.In barrel fixed form 3 center fixed the barrel assembly is arranged.2A and 2B are that the nozzle that the diagonal angle symmetry is fixed on the same shape on the barrel fixed form contacts the lead screw transmission assembly.
In Fig. 3; 6A is respectively to be connected nozzle to contact the synchronous pulley on the screw mandrel in the lead screw transmission assembly with 6B; The 7th, synchronous belt is fixed with electrical machine belt pulley 8 on the axle of motor 9, through synchronous band driven in common synchronous pulley 6A and 6B; The rotation of motor is passed to screw mandrel, realize the rectilinear motion of screw through the characteristic of leading screw.
In Fig. 4 and Fig. 5, bearing 10 is fixed on the barrel fixed form 3 with fixed cover 11, and the outside of fixed cover 11 is fixed with a urceolus 15 through nut 12.On screw 13, be fixed with an inner core 16 through nut 14.In the end of urceolus 15 fairlead 18 is installed, this fairlead and inner core 16 closely cooperate can be so that inner core carries out accurate rectilinear motion.
In Fig. 5, the end of inner core 16 is through nut 19 fixed connecting rods 20, and connecting rod 20 is connected through the hinge on Connection Block 22.
Said fixing plate 23, spring 21 and Connection Block 22 are fixed on the mould fixed form 1 through bolt 24, and Connection Block 22 can produce nozzle touch force by motion compresses spring 21.
In schematic structure, when motor is delivered to rotation on the screw mandrel, screw mandrel and screw are screw-threaded engagement; So just can make screw carry out the motion of front and back; When screw when the belt wheel direction is moved, nozzle is to mould fixed form direction motion, when nozzle contacts with mould; Motor continuation output rotation makes screw continue motion, and after compressing the certain amount of spring the motor band-type brake is locked.So just continue to keep nozzle touch force.Owing to be the fixing lead screw transmission assembly in symmetrical diagonal angle, the nozzle touch force that therefore produces respectively also is symmetrical diagonal angle.So just guarantee can not import bending moment into the mould fixed form.When screw when the mould fixed form moves, nozzle is just away from the mould direction.
Claims (4)
1. injection machine mariages thick stick diagonal angle symmetry directional nozzle contact device; It is characterized in that: symmetric position is installed the lead screw transmission assembly respectively at the diagonal angle of a barrel fixed part; Leading screw is fixed on the barrel fixed part after making up with bearing; On the leading screw screw mandrel, synchronous pulley is installed, drive motors is installed on the barrel fixed part, and motor drives two belt wheels simultaneously through synchronous band; One inner core is installed on the leading screw screw, and screw mandrel passes this inner core, and side is equipped with a urceolus outer tube, in the end of urceolus the slide-and-guide cover is installed; Connect through a connecting rod and be fixed on the mould fixed form after the telescopic spring parts are connected again at the other end of inner core, the telescopic spring component movement is compressed spring generation nozzle touch force.
2. injection machine mariages thick stick as claimed in claim 1 diagonal angle symmetry directional nozzle contact device, it is characterized in that: said connecting rod is connected with the telescopic spring parts through hinge.
3. according to claim 1 or claim 2 injection machine mariages thick stick diagonal angle symmetry directional nozzle contact device; It is characterized in that: said telescopic spring parts comprise fixed head, spring and Connection Block; Connecting rod and Connection Block are fixed; Spring is arranged between fixed head and the Connection Block, and fixed head is fixed on the mould fixed form, and Connection Block motion compresses spring produces nozzle touch force.
4. injection machine mariages thick stick as claimed in claim 3 diagonal angle symmetry directional nozzle contact device, it is characterized in that: said fixed head, spring and Connection Block are through being bolted to the 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 true CN102642271A (en) | 2012-08-22 |
| CN102642271B CN102642271B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (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 (8)
| 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 |
| JP2000094488A (en) * | 1998-09-22 | 2000-04-04 | Daiwa Kasei Ind Co Ltd | Motorized injection molding device |
| JP2000263604A (en) * | 1999-03-18 | 2000-09-26 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| US20020164395A1 (en) * | 2001-05-07 | 2002-11-07 | Akira Yoshinaga | Electric direct-acting die clamping unit of an injection molding machine |
| US20020176908A1 (en) * | 2001-05-22 | 2002-11-28 | Akira Yoshinaga | Electric direct-acting die clamping unit of an injection molding machine |
| JP2006315343A (en) * | 2005-05-13 | 2006-11-24 | Niigata Machine Techno Co Ltd | Driving apparatus for injection molding machine |
| 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 |
-
2011
- 2011-12-13 CN CN201110414781.5A patent/CN102642271B/en active Active
Patent Citations (8)
| 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 |
| JP2000094488A (en) * | 1998-09-22 | 2000-04-04 | Daiwa Kasei Ind Co Ltd | Motorized injection molding device |
| JP2000263604A (en) * | 1999-03-18 | 2000-09-26 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| US20020164395A1 (en) * | 2001-05-07 | 2002-11-07 | Akira Yoshinaga | Electric direct-acting die clamping unit of an injection molding machine |
| US20020176908A1 (en) * | 2001-05-22 | 2002-11-28 | Akira Yoshinaga | Electric direct-acting die clamping unit of an injection molding machine |
| JP2006315343A (en) * | 2005-05-13 | 2006-11-24 | Niigata Machine Techno Co Ltd | Driving apparatus for injection molding machine |
| 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 |
Cited By (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 |
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| CN102642271B (en) | 2017-01-25 |
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