CN202029320U

CN202029320U - Electromagnetic vibration mechanism for injection mould

Info

Publication number: CN202029320U
Application number: CN 201120076580
Authority: CN
Inventors: 谭文胜; 赖华清; 宋志国; 徐波
Original assignee: Changzhou College of Information Technology CCIT
Current assignee: Changzhou College of Information Technology CCIT
Priority date: 2011-03-22
Filing date: 2011-03-22
Publication date: 2011-11-09
Anticipated expiration: 2021-03-22

Abstract

An electromagnetic vibration mechanism for an injection mould comprises a solenoid electromagnet, a combined elastic vibrator and a pulse direct current output control system, wherein the solenoid electromagnet comprises a conductive coil, a coil casing and a movable iron core; the combined elastic vibrator comprises an adjusting block, a push rod, a strong spring, a vibrating rod and a magnetism isolating pad; and the pulse direct current output control system comprises a control panel, an input power and a pulse direct-current power source control loop. The electromagnetic vibration mechanism for the injection mould is mainly mounted in an injection mould hot runner gating system or at optional positions of a mould cavity, can be used in a single-point or multi-point vibration mode and functions in vibrating injection moulding by superposing vibration force fields during filling of plastic melt when injection moulding is performed. The electromagnetic vibration mechanism for the injecting mould is simple in structure, small in size, low in energy consumption, convenient in installation, adjustment and use, easy in manufacture, low in manufacture cost and suitable for various injecting moulds.

Description

A kind of injection mould electromagnetic vibration agencies

Technical field

The utility model relates to a kind of annex that vibrates injection mold, specifically a kind of injection mould electromagnetic vibration agencies that is used to vibrate injection moulding.

Background technology

The vibration injection moulding is to great breakthrough of traditional injection moulding technology, because the vibration field of force can exert an influence to the flowability of polymer, make that the rheological behaviour of polymer melt changes in the injection moulding process, the vibration force field energy enough reduces the viscosity of polymer melt, thereby improved the mold filling performance, improve the polymer fiber directionality, overcome the more existing defectives of present traditional injection moulding goods.Present employed vibrating device generally is mechanical, so have complex structure, the difficult adjusting and the big deficiency of energy consumption.The electromagnetic type dynamic injection molding shaped device of Chinese patent publication number CN 1974173A and Chinese patent publication number CN 1141842A invention, be by injection machine is reequiped, utilize the swinging electromagnetic mechanism, make injection screw obtain the mechanical oscillation field of force when plasticizing and injection moulding, its electromagnetic mechanism design is complicated, volume is big, manufacturing expense is higher.

Summary of the invention

The purpose of this utility model is to propose the electromagnetic vibration agencies that a kind of simple in structure, less energy consumption, Tiao joint Fang Bian ﹑ can be used for multiple occasion injection mold.

For achieving the above object, the utility model is taked following technical scheme:

A kind of injection mould electromagnetic vibration agencies comprises solenoid Dian Ci Tie ﹑ combined elastic Zhen Dong Ti ﹑ pulse direct current output control system; Described combined elastic vibrating body is positioned at the solenoid electromagnet, and described solenoid electromagnet is connected with the pulse direct current output control system.

Further improvement of the utility model is: described solenoid electromagnet comprises that the outer shell ﹑ of coil leads the moving iron core of electric coil ﹑; Described combined elastic vibrating body comprises regulates Kuai ﹑ Tui Gan ﹑ Qiang power Dan Huang ﹑ Zhen Dong Gan ﹑ magnetism isolating spacer; Described pulse direct current output control system comprises Kong system Mian Ban ﹑ input power supply and pulse dc power control loop; Described coil case comprises Gais the ﹑ base, and described loam cake is fixedlyed connected with base, and described conductive coil is positioned at coil case, and is connected with the pulse dc power control loop, and described moving iron core is positioned in the middle of the conductive coil; Described vibrating arm passes base, and its fixedly connected moving iron core in upper end, and described moving iron core lower end links to each other with base by a brute spring; Described push rod passes loam cake, and the fixedly connected magnetism isolating spacer in its lower end, and the upper end is connected with regulating block by a brute spring, and described regulating block and loam cake flexibly connect; Described magnetism isolating spacer contacts with moving iron core.

Here, the pulse dc power control loop is converted to Yi to the input power supply to be decided Pin and Shuais the output current of ﹑ amplitude, and control panel is implemented the control operation of computer-controlled vibration parameters.And regulating block is regulated the decrement of two brute springs, makes iron core and push rod be subjected to the equilibrium bomb power effect that needs, and makes the interstitial site that iron core is in to be needed.Because of the magnetism isolating spacer of being separated by between moving iron core and the push rod, like this, when the conductive coil of solenoid electromagnet is switched on, form a whole magnetic circuit, stay with the magnetic circuit gap between moving iron core and the loam cake.

For the convenience that vibrating arm and push rod move up and down along with the effect of magnetic force, described vibrating arm and base do not have the gap and are slidingly matched; Described push rod and loam cake do not have the gap and are slidingly matched.

For adjust, convenient disassembly, described vibrating arm is with the moving iron core that is threaded; For adjust, convenient disassembly, also for regulating block can move up and down along with the effect of magnetic force conveniently, described regulating block is threaded with loam cake.

Easy to adjust in order to install, described loam cake is connected with base through screws.

A kind of injection mould electromagnetic vibration agencies of the present utility model, utilize the energising of solenoid electromagnet that electromagnetic energy is provided, the electromagnetic attraction combined elastic vibrating body that is added to, flexible member is stored and is released energy, the recurrent pulses electromagnetic energy that the frequency of pulse direct current output control system output and the adjustable low-frequency pulse direct current of pulse strength are produced is converted into the adjustable narrow amplitude mechanical oscillation of the low frequency ﹑ field of force, by the vibrating arm axial linear movement, directly act on plastic melt filling flow process, realize the vibration injection moulding.By computer management, amplitude and frequency by the control panel control vibration field of force, the vibration field of force of this injection mould electromagnetic vibration agencies, its frequency 0 is to 50Hz, amplitude 0 is to 0.5mm, act on pressure 0 to 300 MPa of plastic melt, and this injection mould electromagnetic vibration agencies can provide the axial of melt flows direction or radial pressure vibration to plastic melt.Wherein vibration frequency is by the control of pulse direct current output control system, and amplitude is by combined elastic vibrating body and electromagnetic force adjustment, and electromagnetic force is by the conductive coil number of turn, coil shape size, direct current decision.

Described solenoid electromagnet belongs to suction-type solenoid electromagnet structure.

A kind of injection mould electromagnetic vibration agencies of the present utility model can be arranged in the optional position and mold cavity of HOT RUNNER INJECTION MOULD running gate system, all can provide the vibration field of force to the injection mould injection moulding process.

The utlity model has following good effect: 1) compare with other vibration injection mouldings, electromagnetic vibration agencies is simple in structure, implements easily and controls; 2) because electromagnetic vibration agencies Ti Ji Xiao ﹑ convenient operation and control can be arranged on multiple different parts in the injection mould, both single-point vibrations also can be the multiple spot vibrations; 3) because by the current control loop adjustment, the electromagnetic vibration agencies structure can be exported the vibration field of force of satisfying multiple vibration parameters requirement; 4) main is electromagnetic vibration agencies less energy consumption, easy to manufacture, and manufacturing expense is lower, and applicability is strong, can extensively promote the use of.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view after Fig. 1 removes pulse direct current electric current output control system.

Among the figure: loam cake 1 ﹑ regulating block 2 ﹑ push rods 3 ﹑ brute springs 4, moving iron core 5, vibrating arm 6 ﹑ brute springs 7 ﹑ conductive coils 8 ﹑ bases 9, magnetism isolating spacer 10, control panel 11 ﹑ input power supply 12, pulse dc power control loop 13, screw 14.

The specific embodiment

For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail below:

Embodiment 1:

As accompanying drawing 1, accompanying drawing 2, a kind of injection mould electromagnetic vibration agencies comprises solenoid Dian Ci Tie ﹑ combined elastic Zhen Dong Ti ﹑ pulse direct current output control system.

The solenoid electromagnet comprises that coil Wai Ke ﹑ conductive coil 8 ﹑ move iron core 5; The combined elastic vibrating body comprises regulating block 2 ﹑ push rods 3 ﹑ brute springs 4, brute spring 7 ﹑ vibrating arms 6 ﹑ magnetism isolating spacers 10; The pulse direct current output control system comprises control panel 11 ﹑ input power supply 12 and pulse dc power control loop 13.

Coil case comprises loam cake 1 ﹑ base 9, loam cake 1 is fixedlyed connected by four screws 14 with base 9, and conductive coil 8 is positioned at coil case, and there is wrapped with insulation on its surface, and be electrically connected with pulse dc power control loop 13, moving iron core 5 is positioned in the middle of the conductive coil 8; Vibrating arm 6 passes base 9 and is slidingly matched with base 9 no gaps, and its upper end is threaded and moves iron core 5, and moving iron core 5 lower ends link to each other with base 9 by a brute spring 7; Push rod 3 passes loam cake 1 and is slidingly matched with loam cake 1 no gap, the fixedly connected magnetism isolating spacer 10 in its lower end, and the upper end is connected with regulating block 2 by a brute spring 4, and regulating block 2 is threaded with loam cake 1; Magnetism isolating spacer 10 contacts with moving iron core 5.

During work, after being placed in a kind of injection mould electromagnetic vibration agencies of the present utility model in the injection mould, in injection moulding process, vibrating arm 6 is subjected to plastic melt and upwards pressure and the effect of spring back stretch, combined elastic vibrating body adaptive equalization, at this moment, the back stretch of the brute spring 4 of upper end equals the back stretch of brute spring 7 of lower end and the pressure sum of plastic melt.

After conductive coil 8 energisings, the suction that moving iron core 5 obtains to 1 motion of coil case loam cake, moving iron core 5 promotes push rod 3 compression brute springs 4, at this moment, the screen resilience that the screen resilience of brute spring 4 equals brute spring 7 adds electromagnetic attraction and the plastic melt thrust sum to vibrating arm 6, and electromagnetic energy saves as the mechanical energy of combined elastic vibrating body; Because the solenoid electromagnet passes to pulse direct current, at the pulse direct current discharging gap, electromagnetic attraction disappears, brute spring 4 resiliences promote moving iron core 5 and vibrating arm 6 and move downward, and its motive force equals electromagnetic attraction, like this, the mechanical energy of combined elastic vibrating body discharges with the vibration field of force, and vibrating arm 6 just obtains the vibration of recurrent pulse, and injection mould is vibrated injection moulding.

Present embodiment, the coil turn 500 of conductive coil 8, the high 20mm of coil, coil outer diameter 40mm, internal coil diameter 20mm, 1 ampere in electric current, vibrating arm 6 diameter 6mm can export 30 kilograms of vibration forces, the vibration field of force of 300 MPa pressure power.As long as the design parameter of each of adjustment injection mould electromagnetic vibration agencies just can satisfy multiple vibration injection moulding requirement.

For obtaining good vibration injection moulding effect, the moving iron core 5 of loam cake 1 ﹑ base 9 ﹑ of solenoid electromagnet is all selected the good cast iron of magnetic conductivity for use, and vibrating arm 6 is selected magnetic conductivity and the good cast steel of intensity for use.

The utility model is simple in structure, and volume is little, installs, convenient disassembly, implements easily and controls; Can be arranged on multiple different parts in the injection mould, both single-point vibrations also can be the multiple spot vibrations; Can export the vibration field of force of satisfying multiple vibration parameters requirement; Less energy consumption, easy to manufacture, manufacturing expense is lower, and applicability is strong, can extensively promote the use of.

Claims

1. injection mould electromagnetic vibration agencies is characterized in that: comprise the solenoid electricity magnetic iron ﹑ combined elastic body ﹑ pulse direct current output control system that shakes; Described combined elastic vibrating body is positioned at the solenoid electromagnet, and described solenoid electromagnet is connected with the pulse direct current output control system.

2. injection mould electromagnetic vibration agencies according to claim 1 is characterized in that: described solenoid electromagnet comprises that the outer shell ﹑ of coil leads the moving iron core of electric coil ﹑; Described combined elastic vibrating body comprises regulates Kuai ﹑ Tui Gan ﹑ Qiang power Dan Huang ﹑ Zhen Dong Gan ﹑ magnetism isolating spacer; Described pulse direct current output control system comprises Kong system Mian Ban ﹑ input power supply and pulse dc power control loop; Described coil case comprises Gais the ﹑ base, and described loam cake is fixedlyed connected with base, and described conductive coil is positioned at coil case, and is connected with the pulse dc power control loop, and described moving iron core is positioned in the middle of the conductive coil; Described vibrating arm passes base, and its fixedly connected moving iron core in upper end, and described moving iron core lower end links to each other with base by a brute spring; Described push rod passes loam cake, and the fixedly connected magnetism isolating spacer in its lower end, and the upper end is connected with regulating block by a brute spring, and described regulating block and loam cake flexibly connect; Described magnetism isolating spacer contacts with moving iron core.

3. injection mould electromagnetic vibration agencies according to claim 2 is characterized in that: described vibrating arm and base do not have the gap and are slidingly matched; Described push rod and loam cake do not have the gap and are slidingly matched.

4. injection mould electromagnetic vibration agencies according to claim 2 is characterized in that: described vibrating arm is with the moving iron core that is threaded; Described regulating block is threaded with loam cake.

5. injection mould electromagnetic vibration agencies according to claim 2 is characterized in that: described loam cake is connected with base through screws.