CN103692627B - The energy-saving injection machine clamping of magnetic assisted lock mould - Google Patents

The energy-saving injection machine clamping of magnetic assisted lock mould Download PDF

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Publication number
CN103692627B
CN103692627B CN201310691502.9A CN201310691502A CN103692627B CN 103692627 B CN103692627 B CN 103692627B CN 201310691502 A CN201310691502 A CN 201310691502A CN 103692627 B CN103692627 B CN 103692627B
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China
Prior art keywords
moving platen
solid plate
plate
pull bars
pole plate
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CN201310691502.9A
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CN103692627A (en
Inventor
张树有
朱俏俏
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Zhejiang University ZJU
Zhejiang Sound Machinery Manufacture Co Ltd
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Zhejiang University ZJU
Zhejiang Sound Machinery Manufacture Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/67Mould opening, closing or clamping devices hydraulic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C2045/645Mould opening, closing or clamping devices using magnetic means

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of energy-saving injection machine clamping of magnetic assisted lock mould.Its four pull bars are successively through after moving platen and solid plate locating hole separately, one end and solid plate affixed, the other end of four pull bars and moving platen are formed and are slidably matched, be positioned at the solid plate groove at the solid plate center of four pull bars built with a matched moulds half mold, the moving platen groove at moving platen center is built with another matched moulds half mold, and moving platen outer side center is connected with the connecting rod of die cylinder; The present invention also comprises the identical pole plate of eight block structures, and four pieces of pole plate are arranged on the interior junction of respective pull bar and solid plate respectively, and other four pieces of pole plate are arranged on the interior junction of respective pull bar and moving platen respectively.Coil in pole plate on iron core, after energising, produces magnetic force, thus tension solid plate and moving platen, strengthen clamp force.Solid plate of the present invention can attract moving platen by magnetic force, and strengthen the size of clamp force and stablize, not only structure is simple, and operating efficiency is high.

Description

The energy-saving injection machine clamping of magnetic assisted lock mould
Technical field
The present invention relates to a kind of clamping, particularly relate to a kind of energy-saving injection machine clamping of magnetic assisted lock mould.
Background technology
Clamping is one of critical component of injection machine, and its function realizes mould to open and close motion, is that the distortion of mould closed generation system resilience reaches clamp force, by mold-locked.
The clamping clamp force of current injection machine provides major way to utilize hydraulic cylinder to produce power and locks, also utilize servomotor to drive leading screw to produce pressure and lock.
Current domestic Clamping Device of Injection Moulding Machine the most generally adopts 5 double-toggle formula clampings; although have power enlarging function, because oil during hydraulic coupling locked mode lets out phenomenon seriously, be just difficult to rise again after clamp force reaches a certain size; the high market demand can not be met, and waste energy.
Two plate vertical compression type mould closing mechanisms directly realize the motion of moving platen and the locking of mould with hydraulic jack, and its structure is simple, clamp force is stablized, and each pull bar clamp force harmony is good, but has emptying to perplex equally.
All-electric mold closing mechanism adopts servomotor to drive leading screw to produce clamp force, but leading screw manufacturing cost is wherein higher.
In the electromagnetic mold clamping mechanism (patent CN102211388A) of injection machine, be furnished with a plate, two plates, magnetic sheet, tailgate, mode transfer post, shifting formwork leading screw etc., utilize tailgate in magnetic field by magnetic force, and then change a plate into the attraction of two plates to carry out locked mode, this magnetic field produces via the strong magnetic of the rare earth arranged in magnetic sheet and alnico magnet, produce magnetic pole (N pole and S pole) and attract each other and produce magnetic force and carry out auxiliary locked mode and compare with being directly energized to wound core in the present invention, mainly contain following deficiency: (1) utilizes tailgate in the magnetic field that magnetic sheet produces, first need accurately to regulate the distance δ of tailgate and magnetic sheet by magnetic force, then according to position adjustments two plate of now each plate, itself and mould are fitted, carry out locked mode again, during action complicated and work, cycle period is longer, efficiency is low, (2) head plate, two plates, magnetic sheet and tailgate four blocks of plates are needed and complex structure.
Summary of the invention
In order to overcome three plate Joint-double Clamping Units and two plate vertical compression type mould closing mechanism emptying shortcoming and electromagnetic mold clamping mechanism inefficiencys in background technology; baroque deficiency, the object of the present invention is to provide a kind of energy-saving injection machine clamping of magnetic assisted lock mould.
For achieving the above object, the present invention is by the following technical solutions:
The present invention includes solid plate, moving platen, four pull bars and die cylinder, four pull bars are successively through after moving platen and solid plate locating hole separately, one end and the solid plate of four pull bars are affixed, solid plate is vertically fixed on injection machine support, the other end of four pull bars and moving platen are formed and are slidably matched, four pull bars are fixed on injection machine support, the solid plate center being positioned at four pull bars has solid plate groove, solid plate groove is built with a matched moulds half mold, the moving platen center being positioned at four pull bars has moving platen groove, moving platen groove is built with another matched moulds half mold, two matched moulds half molds are positioned on same axis, moving platen outer side center is connected with the connecting rod of die cylinder, the present invention also comprises the identical pole plate of eight block structures, and four pieces of pole plate are arranged on the interior junction of respective pull bar and solid plate respectively, and other four pieces of pole plate are arranged on the interior junction of respective pull bar and moving platen respectively.
The side of the pole plate that described eight block structures are identical has groove, and 16 iron cores being wound with coil windings respectively are vertically distributed on by row, column on the pole plate groove worn outside pull bar centre bore, and iron core flushes with pole plate.
The present invention is compared with background technology, and the beneficial effect had is::
Compared with the three-plate type Curved Elbow Die Mechanism the most generally used, structure is simple, saves material; Compared with full hydraulic force clamping, adopt electromagnetic force to assist locked mode mode, overcome emptying shortcoming, economize energy; Compared with the electromagnetic mold clamping mechanism (patent CN102211388A) of injection machine, the principle of electromagnetic mold clamping mechanism is by magnetic force in the magnetic field that produces of the strong magnetic of rare earth that utilizes tailgate to arrange in by magnetic sheet and alnico magnet, and then change a plate into the attraction of two plates to carry out locked mode, the principle of the invention directly produces magnetic pole (N pole and S pole) to wound core energising to attract each other and produce magnetic force and carry out auxiliary locked mode, not only structure is simple, and operating efficiency is high; Adopt control system feedback flow control valve governing speed, can inertia impact be prevented, available protecting mould in matched moulds moment.Control system feedback flow control valve governing speed is adopted to realize providing of the different hydraulic flows of shifting formwork and locked mode respectively, relative economize energy.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the energy-saving injection machine clamping of magnetic assisted lock mould of the present invention.
Solid plate and moving platen figure when Fig. 2 is non-installation mold.
Fig. 3 is the Pareto diagram of every block pole plate upper core and coil windings thereof.
Fig. 4 is the B-B sectional view of Fig. 3.
In figure: 1--, solid plate, 2, pole plate, 3, pull bar, 4, moving platen, 5, die cylinder, 6, matched moulds half mold, 7, another matched moulds half mold, 8, solid plate groove, 9, moving platen groove, 10, iron core, 11, coil windings.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As Fig. 1, shown in Fig. 2, the present invention includes solid plate 1, moving platen 4, four pull bars 3 and die cylinder 5, four pull bars 3 are successively through after moving platen 4 and the respective locating hole of solid plate 1, one end and the solid plate 1 of four pull bars 3 are affixed, solid plate 1 is vertically fixed on injection machine support, the other end of four pull bars 3 and moving platen 4 are formed and are slidably matched, four pull bars 3 are fixed on injection machine support, the solid plate center being positioned at four pull bars has solid plate groove 8, solid plate groove 8 is built with a matched moulds half mold 6, the moving platen center being positioned at four pull bars has moving platen groove 9, moving platen groove 9 is built with another matched moulds half mold 7, two matched moulds half molds 6, 7 are positioned on same axis, moving platen 4 outer side center is connected with the connecting rod of die cylinder 5, the present invention also comprises the interior junction that the identical pole plate of eight block structures 2, four pieces of pole plate 2 are arranged on respective pull bar and solid plate 1 respectively, and other four pieces of pole plate 2 are arranged on the interior junction of respective pull bar and moving platen 4 respectively.
As shown in Figure 1 and Figure 2, the side of the pole plate 2 that described eight block structures are identical has groove, and 16 iron cores 10 being wound with coil windings 11 respectively are vertically distributed on by row, column on the pole plate groove worn outside pull bar centre bore, and iron core 10 flushes with pole plate 2.
Be about at two matched moulds half molds sensor is equipped with in the support position of closing and connection control system for controlling the flow of die cylinder 5 and then controlling the speed of cylinder rod.This is not shown in FIG. for control system and support.Die cylinder controls flow governing speed by control system, its two moulds be about to close place support on be provided with sensor for FEEDBACK CONTROL closure pressing speed, reduce inertia impact.
The present invention supports the use pole plate 2 and two matched moulds half molds, and when ensureing that two matched moulds half molds close, the spacing of four pieces of pole plate and other four pieces of pole plate is zero, provides best magnetic assisted lock mould for ensureing.
The mould assembling action that die cylinder 5 of the present invention realizes, first, realize reasonable shifting formwork fast, the i.e. rapid mould-moving when two matched moulds half molds close far away, flow by controlling die cylinder 5 before matched moulds half mold is about to close reduces moving platen translational speed, inertia impact when ensureing matched moulds is little, realizes steady matched moulds.Then, cylinder rod provides thrust and realize locked mode under magnetic force is auxiliary.Wherein cylinder rod thrust size is that required clamp force deducts assisting magnetic size.Die cylinder of the present invention realizes the function of shifting formwork and locked mode, during shifting formwork, realizes speed regulate by control system feedback flow control valve.During locked mode, less hydraulic coupling need be provided auxiliary lower of magnetic force, reduce emptying risk far away.
Operation principle of the present invention is:
During work, first select according to mold thickness four angles place that eight pieces of supporting pole plate are installed on solid plate 1 and moving platen 4 respectively.According to required rapid mould-moving speed, controlled the flow of die cylinder 5 by control system, when shifting formwork to matched moulds half mold 6 and another matched moulds half mold 7 are about to close, control flow in time with reduction speed by sensor feedback.Complete the shifting formwork action of die cylinder 5.When mould closes, to the iron core energising in pole plate 2, the pole plate of side, cover half pole and the pole plate of side, dynamic model pole is made to produce opposite poles, namely N pole and S pole is respectively, attract each other generation magnetic force, provides clamp force, the locked mode action of auxiliary now die cylinder 5.Because pole plate is arranged on the corner of solid plate and moving platen respectively, the magnetic force size attracted each other is identical, magnetic force equalization stable.The burden of die cylinder can be alleviated to ensure oil cylinder optimum working efficiency by magnetic assisted lock mould, prevent oil cylinder emptying.

Claims (2)

1. the energy-saving injection machine clamping of a magnetic assisted lock mould, comprise solid plate, moving platen, four pull bars and die cylinder, four pull bars are successively through after moving platen and solid plate locating hole separately, one end and the solid plate of four pull bars are affixed, solid plate is vertically fixed on injection machine support, the other end of four pull bars and moving platen are formed and are slidably matched, four pull bars are fixed on injection machine support, the solid plate center being positioned at four pull bars has solid plate groove, solid plate groove is built with a matched moulds half mold, the moving platen center being positioned at four pull bars has moving platen groove, moving platen groove is built with another matched moulds half mold, two matched moulds half molds are positioned on same axis, moving platen outer side center is connected with the connecting rod of die cylinder, it is characterized in that: also comprise the pole plate that eight block structures are identical, four pieces of pole plate are arranged on the interior junction of respective pull bar and solid plate respectively, and other four pieces of pole plate are arranged on the interior junction of respective pull bar and moving platen respectively.
2. the energy-saving injection machine clamping of a kind of magnetic assisted lock mould according to claim 1; it is characterized in that: the side of the pole plate that described eight block structures are identical has groove; 16 iron cores being wound with coil windings respectively are vertically distributed on by row, column on the pole plate groove worn outside pull bar centre bore, and iron core flushes with pole plate.
CN201310691502.9A 2013-12-17 2013-12-17 The energy-saving injection machine clamping of magnetic assisted lock mould Active CN103692627B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109249589B (en) * 2018-10-29 2021-06-18 日照金凯利汽车附件有限公司 Breakage-proof injection mold capable of automatically cleaning waste materials
CN111283977B (en) * 2020-03-24 2024-08-27 青岛威巴克生物技术有限公司 External die pressure-maintaining device

Citations (9)

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Publication number Priority date Publication date Assignee Title
CN1970272A (en) * 2006-06-26 2007-05-30 林谊 Mode locking free oil cylinder hydraulic mode-locking plastic jetting-moulding machine
CN1974176A (en) * 2006-06-26 2007-06-06 林谊 Injection molding machine with electromagnetically locked mold
KR100873335B1 (en) * 2007-07-11 2008-12-10 주식회사 우진세렉스 Clamping unit for the plastic injection molding machine
CN102211388A (en) * 2010-04-08 2011-10-12 宁波海天华远机械有限公司 Electromagnetic mold clamping mechanism of injection molding machine
CN102615742A (en) * 2011-01-31 2012-08-01 住友重机械工业株式会社 Mold clamping device
CN202462823U (en) * 2011-12-30 2012-10-03 苏州市东庄大通精密模具有限公司 Injection molding machine
CN202592690U (en) * 2012-06-11 2012-12-12 无锡天惠塑机有限公司 Clamping die device
CN102990882A (en) * 2011-09-08 2013-03-27 住友重机械工业株式会社 Injection molding machine
CN203622858U (en) * 2013-12-17 2014-06-04 浙江大学 Energy-saving injection molding machine clamping unit realizing clamping under auxiliary effect of magnetic force

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160214A (en) * 1984-12-29 1986-07-19 Toyoda Gosei Co Ltd Injection molding machine
JPH05177681A (en) * 1991-12-27 1993-07-20 Shinko Serubitsuku:Kk Injection molding machine having function for detecting proper mold clamping force

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1970272A (en) * 2006-06-26 2007-05-30 林谊 Mode locking free oil cylinder hydraulic mode-locking plastic jetting-moulding machine
CN1974176A (en) * 2006-06-26 2007-06-06 林谊 Injection molding machine with electromagnetically locked mold
KR100873335B1 (en) * 2007-07-11 2008-12-10 주식회사 우진세렉스 Clamping unit for the plastic injection molding machine
CN102211388A (en) * 2010-04-08 2011-10-12 宁波海天华远机械有限公司 Electromagnetic mold clamping mechanism of injection molding machine
CN102615742A (en) * 2011-01-31 2012-08-01 住友重机械工业株式会社 Mold clamping device
CN102990882A (en) * 2011-09-08 2013-03-27 住友重机械工业株式会社 Injection molding machine
CN202462823U (en) * 2011-12-30 2012-10-03 苏州市东庄大通精密模具有限公司 Injection molding machine
CN202592690U (en) * 2012-06-11 2012-12-12 无锡天惠塑机有限公司 Clamping die device
CN203622858U (en) * 2013-12-17 2014-06-04 浙江大学 Energy-saving injection molding machine clamping unit realizing clamping under auxiliary effect of magnetic force

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