CN101979236B - Electric pull rod-adjustable mould clamping mechanism - Google Patents
Electric pull rod-adjustable mould clamping mechanism Download PDFInfo
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- CN101979236B CN101979236B CN201010549396.7A CN201010549396A CN101979236B CN 101979236 B CN101979236 B CN 101979236B CN 201010549396 A CN201010549396 A CN 201010549396A CN 101979236 B CN101979236 B CN 101979236B
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- oil cylinder
- reductor
- rod
- clamping mechanism
- lead screw
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- 230000007246 mechanism Effects 0.000 title claims abstract description 53
- 239000007787 solid Substances 0.000 claims abstract description 16
- 210000004907 gland Anatomy 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 36
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000009415 formwork Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000007698 birth defect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Electric pull rod-adjustable mould clamping mechanism, comprise ejecting mechanism, contracting brake mechanism, moving platen, pull bar, solid plate, high-voltage lock mould oil cylinder, rapid mould-moving oil cylinder, ejecting mechanism is arranged on moving platen, rapid mould-moving oil cylinder movement moving platen; Contracting brake mechanism is arranged on moving platen, and contracting brake mechanism is by its band-type brake nut obvolvent pull bar; Electric adjustable drag link mechanism is also set, it comprises: reductor, servomotor, reductor connect end cap, lead screw pair leading screw, lead screw pair screw, pull-rod nut, servomotor connects reductor, reductor is fixed on reductor link and covers, reductor connects end cap and is fixed on Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder protecgulum is fixed on solid plate, and servomotor is connected with lead screw pair leading screw, and lead screw pair leading screw is supporting with the lead screw pair screw being fixed on rod head.
Description
Technical field
The present invention relates to a kind of injection machine parts, particularly a kind of clamping of injection machine.
Background technology
In current domestic injection (mo(u)lding) machine industry, in the highest flight, its construction profile is illustrated in fig. 1 shown below link-type mold closing mechanism, and the defect of its structure is the machine to certain tonnage, and its opening stroke is by the restriction of structure, and stroke can not be excessive.And for the goods of some dark lumen pores, this kind of machine just can not meet the requirement of goods, and the structure of connecting rod machine is also more complicated, and when the tonnage of machine is larger, the length of machine and weight are all larger, cost also just improves accordingly.
And industrially developed country is as Germany, the U.S., Japan, the large size plastic jetting-moulding device overwhelming majority adopts two-plate injection machine, and as shown in Figure 2, compared with traditional elbow rod type die joining device, two-plate locked mode parts have following advantages to structure principle chart:
1. shifting formwork stroke is large.Under the effect of mould shifting oil cylinder, can according to the requirement determination shifting formwork stroke of goods, stroke is only subject to the impact of the stroke of mould shifting oil cylinder and the helical pitch of fuselage.
2. volume is little, lightweight, to account for floor area little.Two-plate eliminates adjusting device than common three-plate type, decreases and takes up an area space, reduce manufacturing cost.
3. locked mode repeatable accuracy is high.The stressed part of clamping system is few, and machinery hydraulic system is simple, and clamping system does not does not almost wear and tear, need not be oily.
4. four-pull-rod stress equalization, enters hydraulic oil by Mode-locking oil cylinder and is formed, and makes mould stress equalization.
5. the shifting formwork of two plates is pulled by two mould shifting oil cylinders, can realize rapid mould-moving, shortens the work period, enhances productivity.
6. can adapt to the production of dark chamber goods, large part product can be produced with minicomputer, overcome the defect of toggle link machine shifting formwork stroke restriction, according to the requirement of fabricated product, produce the goods of large shifting formwork stroke
Its sequence of movement: rapid mould-moving oil cylinder be pulled to mould paste hold together after, directly carry out band-type brake by the position between electrichydraulic control cohesion nut and pull rod screw, then carry out high-voltage lock mould operation, obvolvent relies on electrichydraulic control completely.When error appears in electrichydraulic control, just there will be the fault that obvolvent is not held together, and realize obvolvent complexity, cost is high.
Due to the limited precision of electrichydraulic control domestic at present, this structure is not too applicable to China's national situation.For reducing the precision of electrichydraulic control, reduce costs, make band-type brake more simple, reliable, the applicant have also developed a kind of mold closing mechanism with machinery location, and when making its band-type brake, location is more accurate.As shown in Figure 3, A is mechanical locating surface to the cutting diagram of this structure, and B is Mode-locking oil cylinder part, due to mechanical position limitation, namely during machine operation, cohesion nut and pull bar have a relatively-stationary position, in order to realize mode transfer, the mode transfer stroke of machine will realize in Mode-locking oil cylinder.
This structure not only has the superior function that hydraulic machine has: take up room little, matched moulds parameters of operating part is large, accurate high, the mode transfer of clamp force is convenient, the fast precision of switching molding speed is high, wear and tear little and maintainability good; Overcome simultaneously other two triggers with birth defect: pull bar guiding is more rationally, band-type brake has mechanical position limitation more reliable, and Mode-locking oil cylinder is protected with overtravel, and mould opening force is larger.
But there is following shortcoming in it:
1. a plate structure complexity, the process-cycle is long, difficulty is large.
2. Mode-locking oil cylinder stroke is long, large by oil mass.
3. broken mould low precision.
4. tear machine open and must pull down pull bar, open oil cylinder cover and can waste hydraulic oil, damage seal.
Summary of the invention
Technical problem to be solved by this invention be overcome prior art above-mentioned deficiency and a kind of electric pull rod-adjustable mould clamping mechanism is provided, make it control accurately.
The present invention solves the problems of the technologies described above adopted technical scheme:
Electric pull rod-adjustable mould clamping mechanism, comprise ejecting mechanism, contracting brake mechanism, moving platen, pull bar, solid plate, high-voltage lock mould oil cylinder, rapid mould-moving oil cylinder, two plate guide rails, two plates support shoes, ejecting mechanism is arranged on moving platen, two plates are set bottom moving platen and support shoes, two plates support shoes and to be placed on two plate guide rails and by its guiding, rapid mould-moving oil cylinder movement moving platen; Contracting brake mechanism is arranged on moving platen, and contracting brake mechanism is by its band-type brake nut obvolvent pull bar; High-voltage lock mould oil cylinder is arranged in solid plate, the plunger shaft that the front and back that locking piston is placed in solid plate are sealed by Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder bonnet; Electric adjustable drag link mechanism is also set, it comprises: reductor, servomotor, reductor connect end cap, lead screw pair leading screw, lead screw pair screw, pull-rod nut, servomotor connects reductor, reductor is fixed on reductor link and covers, reductor connects end cap and is fixed on Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder protecgulum is fixed on solid plate, and servomotor is connected with lead screw pair leading screw, and lead screw pair leading screw is supporting with the lead screw pair screw being fixed on rod head.
Compared with the clamping apparatus described in existing Fig. 2, present patent application has following characteristics:
1. electrichydraulic control is relatively simple, and cost is lower.
2. reliability is higher---and by servomotor micro-adjustable handle rod position, ensureing at every turn can obvolvent smoothly.
Compared with the clamping apparatus described in existing Fig. 3, present patent application has following characteristics:
Eliminate one and half plates, change mode transfer and realize principle, not only reduce raw-material use, and improve the precision of machine.
Two plate half type head plate structures are complicated, and its foundry goods is bad to be done, the processing of Mode-locking oil cylinder difficulty; the application is pure two plate clampings, and the Mode-locking oil cylinder part of its plate no longer comprises mode transfer function, and length shortens greatly; the generation of foundry goods and the processing of Mode-locking oil cylinder simplify all greatly, shorten the process-cycle.
Mode-locking oil cylinder stroke shortens greatly, and broken cavity volume reduces greatly, reduces, can not only set up clamp force quickly and accurately, effectively shorten molding cycle, raise the efficiency by oil mass, and broken mould action is easier to control, and broken mould precision increases substantially, more energy-conservation.
Pull bar can be extracted out under the condition not dismantling piston, make to assemble after sale simpler, clean, reduce the probability of damage of locked mode part seal.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing link-type mold closing mechanism.
Fig. 2 is the structural representation of existing two-plate injection machine mold closing mechanism.
Fig. 3 is the structural representation of the mold closing mechanism of existing band machinery location.
Fig. 4 is the schematic perspective view of embodiment of the present invention electric pull rod-adjustable mould clamping mechanism.
Fig. 5 is the schematic perspective view of the other direction of embodiment of the present invention electric pull rod-adjustable mould clamping mechanism.
The profile of Tu6Shi electric adjustable draw bar type mechanism.
Profile of tooth graph of a relation when Fig. 7, Fig. 8, Fig. 9 are band-type brakes between band-type brake nut and pull bar.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described.
As shown in Figure 4; electric pull rod-adjustable mould clamping mechanism; comprise ejecting mechanism 1, contracting brake mechanism 2, moving platen 3, pull bar 4, solid plate 5, high-voltage lock mould oil cylinder 6, rapid mould-moving oil cylinder 7, two plate guide rail 8, two plate support shoes 9; ejecting mechanism 1 is arranged on moving platen 3; two plates are set bottom moving platen 3 and support shoes 9; two plates support shoes 9 and to be placed on two plate guide rails 8 and by its guiding, rapid mould-moving oil cylinder 7 moves moving platen 3.
Contracting brake mechanism 2 is arranged on moving platen 3, and contracting brake mechanism 2 is by its band-type brake nut obvolvent pull bar 4.
High-voltage lock mould oil cylinder 6 is arranged in solid plate 5, the plunger shaft that the front and back that locking piston 17 is placed in solid plate 5 are sealed by Mode-locking oil cylinder protecgulum 16, Mode-locking oil cylinder bonnet 18.
As shown in Figure 5, Figure 6, electric adjustable drag link mechanism is also set, it comprises: reductor 10, servomotor 11, reductor connect end cap 12, lead screw pair leading screw 13, lead screw pair screw 14, pull-rod nut 19, servomotor 11 connects reductor 10, reductor 10 is fixed on reductor and connects on end cap 12, reductor connects end cap 12 and is fixed on Mode-locking oil cylinder protecgulum 16, Mode-locking oil cylinder protecgulum 16 is fixed on solid plate 5, servomotor 11 is connected with lead screw pair leading screw 13, and lead screw pair leading screw 13 is supporting with the lead screw pair screw 14 being fixed on pull bar 4 head.
Solid plate 5 arranges stop pin 15, and arrange a gathering sill in the locking piston 17 of corresponding stop pin 15, stop pin 15 stretches in gathering sill, the effect that the effect of stop pin 15 existing locking piston 1 anti-rotation has again locking piston 17 to lead.
Above-mentioned stop pin 15 also has helicla flute, not only can oil extraction but also lubrication can be ensured.
Be provided with lubricant reservoir between above-mentioned reductor connection end cap 12 and transition end cap 21, as long as regularly fill it up with lubricating oil in this lubricant reservoir, be vented when can ensure that lead screw pair is moved, can ensure that again lead screw pair is lubricated.
Owing to not being also very accurate to the position control of locking piston 17, rapid mould-moving oil cylinder 7 pulls moving platen 3 to mould to fit, moving platen 3 is led by two plate guide rails 8, now contracting brake mechanism 2 differs and correctly embraces pull bar 4 surely, see Fig. 7, so now drive lead screw pair leading screw 13 to rotate on lead screw pair screw 14 by servomotor 11 by reductor 10, and lead screw pair screw 14 is fixedly connected with pull bar 4, the pull bar 4 being automatically connected in lead screw pair screw 14 due to lead screw pair leading screw 13 rotating band moves, come the position of tooth on adjusting yoke 4 thus, ensure that the tooth on the tooth of band-type brake nut on contracting brake mechanism 2 and pull bar 4 is just embraced, see Fig. 8, then band-type brake, see Fig. 9, then locked mode, injection, pressurize, cooling, broken mould (draw rod positions changes), die sinking, get goods, close mould and adjust draw rod positions simultaneously, band-type brake, next circulation.
As shown in Figure 7, the profile of tooth of the band-type brake nut of above-mentioned contracting brake mechanism 2 is vertically, is conducive to transmitting clamp force, while be the inclined-plane of 5 °, can bears brokenly mould power, can ensure again band-type brake oil cylinder energy smooth opening.
Above-mentioned pull bar 4 is coordinated by transition end cap 21 and Mode-locking oil cylinder protecgulum 16 two ends, ensures ball screw assembly, and pull bar 4 point-blank, guarantees the life-span of ball screw assembly.
It is fastening that above-mentioned pull bar gland 20 and locking piston 17 pass through bolt-connection, pushes down pull-rod nut 19, eliminate the gap between it and pull bar, locking simple and reliable.
Claims (10)
1. electric pull rod-adjustable mould clamping mechanism, it is characterized in that: comprise ejecting mechanism, contracting brake mechanism, moving platen, pull bar, solid plate, high-voltage lock mould oil cylinder, rapid mould-moving oil cylinder, two plate guide rails, two plates support shoes, ejecting mechanism is arranged on moving platen, two plates are set bottom moving platen and support shoes, two plates support shoes and to be placed on two plate guide rails and by its guiding, rapid mould-moving oil cylinder movement moving platen; Contracting brake mechanism is arranged on moving platen, and contracting brake mechanism is by its band-type brake nut obvolvent pull bar; High-voltage lock mould oil cylinder is arranged in solid plate, the plunger shaft that the front and back that locking piston is placed in solid plate are sealed by Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder bonnet; Electric adjustable drag link mechanism is also set, it comprises: reductor, servomotor, reductor connect end cap, lead screw pair leading screw, lead screw pair screw, pull-rod nut, servomotor connects reductor, reductor is fixed on reductor link and covers, reductor connects end cap and is fixed on Mode-locking oil cylinder protecgulum, Mode-locking oil cylinder protecgulum is fixed on solid plate, and servomotor is connected with lead screw pair leading screw, and lead screw pair leading screw is supporting with the lead screw pair screw being fixed on rod head.
2. electric pull rod-adjustable mould clamping mechanism as claimed in claim 1, it is characterized in that: described solid plate arranges stop pin, arrange a gathering sill in the locking piston of corresponding stop pin, stop pin stretches in gathering sill.
3. electric pull rod-adjustable mould clamping mechanism as claimed in claim 2, is characterized in that: described stop pin also has helicla flute.
4. the electric pull rod-adjustable mould clamping mechanism as described in claim 1 or 2 or 3, is characterized in that: be provided with lubricant reservoir between described reductor connection end cap and transition end cap.
5. the electric pull rod-adjustable mould clamping mechanism as described in claim 1 or 2 or 3, is characterized in that: the profile of tooth on the band-type brake nut of described contracting brake mechanism for vertical, while be the inclined-plane of 5 ° with vertical plane.
6. electric pull rod-adjustable mould clamping mechanism as claimed in claim 4, is characterized in that: the profile of tooth on the band-type brake nut of described contracting brake mechanism for vertical, while be the inclined-plane of 5 ° with vertical plane.
7. the electric pull rod-adjustable mould clamping mechanism as described in claim 1 or 2 or 3, is characterized in that: described pull bar gland and locking piston, by bolt-connection, push down pull-rod nut.
8. electric pull rod-adjustable mould clamping mechanism as claimed in claim 4, is characterized in that: described pull bar gland and locking piston, by bolt-connection, push down pull-rod nut.
9. electric pull rod-adjustable mould clamping mechanism as claimed in claim 5, is characterized in that: described pull bar gland and locking piston, by bolt-connection, push down pull-rod nut.
10. electric pull rod-adjustable mould clamping mechanism as claimed in claim 6, is characterized in that: described pull bar gland and locking piston, by bolt-connection, push down pull-rod nut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201010549396.7A CN101979236B (en) | 2010-11-19 | 2010-11-19 | Electric pull rod-adjustable mould clamping mechanism |
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Application Number | Priority Date | Filing Date | Title |
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CN201010549396.7A CN101979236B (en) | 2010-11-19 | 2010-11-19 | Electric pull rod-adjustable mould clamping mechanism |
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CN101979236A CN101979236A (en) | 2011-02-23 |
CN101979236B true CN101979236B (en) | 2015-09-30 |
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CN201010549396.7A Expired - Fee Related CN101979236B (en) | 2010-11-19 | 2010-11-19 | Electric pull rod-adjustable mould clamping mechanism |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105172076B (en) * | 2015-09-30 | 2017-03-29 | 博创智能装备股份有限公司 | A kind of clamping mechanism, injection molding apparatus, die-cast formation equipment |
CN105619740A (en) * | 2016-01-25 | 2016-06-01 | 海天塑机集团有限公司 | Control method for brake sticking of pull rod and automatic die adjusting method of injection molding machine |
CN105751462B (en) * | 2016-05-06 | 2018-12-07 | 柳州开宇塑胶机械有限公司 | The electric mode locking mechanism of injection moulding machine |
CN110239046A (en) * | 2019-06-10 | 2019-09-17 | 海天塑机集团有限公司 | A kind of Mode-locking oil cylinder of semi-ring band brake type connection |
CN115139456B (en) * | 2022-06-13 | 2024-03-26 | 无锡海天机械有限公司 | Die adjusting mechanism of injection molding machine |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030175381A1 (en) * | 2002-01-23 | 2003-09-18 | Krauss-Maffei Kunststofftechnik Gmbh | Two-platen closing system for an injection molding machine |
EP1366839A2 (en) * | 2002-05-21 | 2003-12-03 | Idraprince Inc. | Clamping assembly for die cast machine |
CN201253937Y (en) * | 2008-06-13 | 2009-06-10 | 佛山市顺德区凯迪威机械有限公司 | Second board injection molding machine mode locker |
CN101837626A (en) * | 2010-04-05 | 2010-09-22 | 宁波海天北化科技有限公司 | Composite vertical compression mould clamping device |
CN201856363U (en) * | 2010-11-19 | 2011-06-08 | 海天塑机集团有限公司 | Electric adjustable draw bar type die assembly mechanism |
-
2010
- 2010-11-19 CN CN201010549396.7A patent/CN101979236B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030175381A1 (en) * | 2002-01-23 | 2003-09-18 | Krauss-Maffei Kunststofftechnik Gmbh | Two-platen closing system for an injection molding machine |
EP1366839A2 (en) * | 2002-05-21 | 2003-12-03 | Idraprince Inc. | Clamping assembly for die cast machine |
CN201253937Y (en) * | 2008-06-13 | 2009-06-10 | 佛山市顺德区凯迪威机械有限公司 | Second board injection molding machine mode locker |
CN101837626A (en) * | 2010-04-05 | 2010-09-22 | 宁波海天北化科技有限公司 | Composite vertical compression mould clamping device |
CN201856363U (en) * | 2010-11-19 | 2011-06-08 | 海天塑机集团有限公司 | Electric adjustable draw bar type die assembly mechanism |
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Granted publication date: 20150930 |