CN102990883A - Injection molding machine - Google Patents

Injection molding machine Download PDF

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Publication number
CN102990883A
CN102990883A CN2012103264924A CN201210326492A CN102990883A CN 102990883 A CN102990883 A CN 102990883A CN 2012103264924 A CN2012103264924 A CN 2012103264924A CN 201210326492 A CN201210326492 A CN 201210326492A CN 102990883 A CN102990883 A CN 102990883A
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CN
China
Prior art keywords
electric current
electromagnet
coil
control
injection
Prior art date
Application number
CN2012103264924A
Other languages
Chinese (zh)
Other versions
CN102990883B (en
Inventor
中崎修
守谷幸次
水野博之
Original Assignee
住友重机械工业株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2011195721A priority Critical patent/JP5774420B2/en
Priority to JP195721/2011 priority
Application filed by 住友重机械工业株式会社 filed Critical 住友重机械工业株式会社
Publication of CN102990883A publication Critical patent/CN102990883A/en
Application granted granted Critical
Publication of CN102990883B publication Critical patent/CN102990883B/en

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Classifications

    • 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
    • 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
    • B29C45/03Injection moulding apparatus
    • 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
    • B29C45/76Measuring, controlling or regulating
    • B29C45/7653Measuring, controlling or regulating mould clamping forces
    • 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
    • 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
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76525Electric current or voltage
    • 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
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76655Location of control
    • B29C2945/76702Closure or clamping device
    • 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
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76929Controlling method
    • B29C2945/76939Using stored or historical data sets

Abstract

The invention provides an injection molding machine capable of realizing the die assembly without supplying current to the coil of an electromagnet based on the control of a control unit. The injection molding machine comprises a die assembling force generation mechanism used for generating a die assembling force by means of the suction force of an electromagnet (49). The die assembling force generation mechanism comprises a current supply part (100) used for supplying current to the coil (48) of the electromagnet (49); and a control unit (60) used for controlling the current supply part (100). The injection molding machine is characterized by also comprising an electrical circuit (200) used for supplying current to the coil (48) of the electromagnet (49) when the current supply part (100) is controlled by the control unit (60) to stop supplying current to the coil (48).

Description

Injection (mo(u)lding) machine

Technical field

The present invention relates to a kind of injection (mo(u)lding) machine.

Background technology

Injection (mo(u)lding) machine penetrates molten resin and is filled in the die cavity of die device from injection device, and it is solidified come moulding moulded product.Die device is made of cover half and dynamic model.The mold closing of die device, matched moulds and die sinking are undertaken by mold closing mechanism.

As mold closing mechanism, extensively utilize the device of the mode of drive sources such as using motor and toggle mechanism, but toggle mechanism is difficult to change mold clamping force, response and less stable in characteristic.And, when moving, toggle mechanism produces moment of flexure, and strain might occur in the installed surface of installation mold device etc.

Therefore, propose that the mold closing mechanism (for example referring to Patent Document 1) that utilizes the absorption affinity of electromagnet for mould on-off action use line motor for mould assembling action is arranged.In the mold closing mechanism, under based on the control of control device, supply with electric current to magnet spool.

Patent documentation 1: the international brochure that discloses No. 05/090052

Die device is changed according to the kind of products formed.When new die device is installed, with bolt die device is temporarily fixed on after the installed surface, carries out mold closing, further fastening bolt is formally fixed under the matched moulds state.Also can use the replacement bolts such as clamping device that utilize hydraulic pressure or magnetic force.

Because formal fixing operation is undertaken by opening the door that is arranged on the injection moulding hood, therefore in order to get rid of the mistake start based on control device, stops to supply with electric current to mold closing mechanism under the state of opening door.

Under this state, use the mode of toggle mechanism can keep the mold clamping force that produces in advance, but use the mode of electromagnet can't keep mold clamping force.This is to be truncated because of the electric current supply to magnet spool based on control device.Therefore, in the mode of using electromagnet, be difficult to carry out formal fixing operation.

Summary of the invention

The present invention finishes in view of above-mentioned problem, its purpose be to provide a kind of under stopping based on the control of control device to the injection (mo(u)lding) machine of realizing the installation of die device under magnet spool is supplied with the state of electric current.

In order to solve above-mentioned purpose, be characterised in that to possess based on the injection (mo(u)lding) machine of a mode of the present invention:

The 1st fixed part, it is equipped with cover half;

The 1st movable member, it is equipped with dynamic model;

The 2nd movable member, itself and the 1st movable member are together mobile;

The 2nd fixed part, it is equipped between described the 1st movable member and described the 2nd movable member; And

Mold clamping force produces mechanism, and its absorption affinity by electromagnet produces mold clamping force between the 2nd fixed part and described the 2nd movable member,

This mold clamping force generation mechanism comprises the control device of supplying with the electric current supply section of electric current and controlling this electric current supply section to described magnet spool,

Described injection (mo(u)lding) machine is provided with electric circuit, and it supplies with electric current to described coil stopping under the control based on this control device supplying with to described coil by described electric current supply section under the state of electric current.

The invention effect:

According to the present invention, providing a kind of can stop to supply with to magnet spool the injection (mo(u)lding) machine of realizing the installation of die device under the state of electric current under the control based on control device.

Description of drawings

Fig. 1 is the figure of the state of expression during based on the injection (mo(u)lding) machine mold closing of one embodiment of the present invention.

Fig. 2 is the figure of the state of expression during based on the injection (mo(u)lding) machine die sinking of one embodiment of the present invention.

What Fig. 3 was expression based on the injection (mo(u)lding) machine of one embodiment of the present invention supplies with the figure of the circuit of electric current to magnet spool.

Among the figure: 10-mold closing mechanism, 11-fixation clip (the 1st fixed part), but 12-dynamic pressure plate (the 1st movable member), 13-rear fender (the 2nd fixed part), 15-cover half, 16-dynamic model, 22-adsorption plate (the 2nd movable member), 37-electromagnet unit (mold clamping force produces mechanism), 48-coil, the 49-electromagnet, the 60-control device, 100-electric current supply section, 200-electric circuit, 204-gap pilot switch, the 206-variable resistor.

The specific embodiment

Below, describe being used for implementing mode of the present invention with reference to the accompanying drawings, in each accompanying drawing to the additional identical or corresponding symbol of identical or corresponding structure and description thereof is omitted.And, but the moving direction of the dynamic pressure plate in the time of will carrying out mold closing is made as the place ahead, describes but the moving direction of the dynamic pressure plate in the time of will carrying out die sinking is made as the rear.

Fig. 1 is the figure of the state of expression during based on the injection (mo(u)lding) machine mold closing of one embodiment of the present invention.Fig. 2 is the figure of the state of expression during based on the injection (mo(u)lding) machine die sinking of one embodiment of the present invention.What Fig. 3 was expression based on the injection (mo(u)lding) machine of one embodiment of the present invention supplies with the figure of the circuit of electric current to magnet spool.

Among the figure, 10 is mold closing mechanism, and Fr is the framework of injection (mo(u)lding) machine, and Gd serves as reasons and is layed in the guiding piece that 2 guide rails on this framework Fr consist of, and 11 is fixation clip (the 1st fixed part).Fixation clip 11 can be arranged at and can adjust on the base plate Ba along the position that the guiding piece Gd that opens and closes direction (left and right directions among the figure) extension to mould moves.In addition, fixation clip 11 also can load on framework Fr.

But opposed and set dynamic pressure plate (the 1st movable member) 12 with fixation clip 11.But dynamic pressure plate 12 is fixed on the movable floor Bb, and movable floor Bb can travel at guiding piece Gd.Thus, but dynamic pressure plate 12 can open and close direction to mould with respect to fixation clip 11 moves.

Set abreast rear fender (the 2nd fixed part) 13 with fixation clip 11 across predetermined space and with fixation clip 11.Rear fender 13 is fixed in framework Fr through the 13a of foot.

In 4 connecting rods 14 2 only are shown among 4 connecting rod 14(figure as connecting member) be set up between fixation clip 11 and the rear fender 13.Fixation clip 11 is fixed in rear fender 13 through connecting rod 14.But set dynamic pressure plate 12 along connecting rod 14 free to advance or retreatly.But the position corresponding with connecting rod 14 is formed for not shown guide hole that connecting rod 14 is run through in dynamic pressure plate 12.In addition, can form notch part and replace guide hole.

Leading section (right part among the figure) at connecting rod 14 forms not shown threaded portion, nut n1 is screwed togather be anchored on this threaded portion, and the leading section that is thus connected bar 14 is fixed in fixation clip 11.The rearward end of connecting rod 14 is fixed in rear fender 13.

But cover half 15 is installed on respectively on fixation clip 11 and the dynamic pressure plate 12 with dynamic model 16, but cover half 15 and dynamic model 16 contact separation along with the advance and retreat of dynamic pressure plate 12, thus carry out mold closing, matched moulds and die sinking.In addition, along with carrying out matched moulds, form not shown die cavity space between cover half 15 and dynamic model 16, the not shown molten resin that penetrates from the injection nozzle 18 of injection device 17 is filled in the die cavity space.Consist of die device 19 by cover half 15 and dynamic model 16.

Adsorption plate 22(the 2nd movable member) but set abreast with dynamic pressure plate 12.Adsorption plate 22 is fixed on the sliding floor Sb through installing plate 27, and sliding floor Sb can travel at guiding piece Gd.Thus, adsorption plate 22 is more free to advance or retreat by the rear than rear fender 13.Adsorption plate 22 can be formed by magnetic material.In addition, can be without installing plate 27, at this moment, adsorption plate 22 is directly fixed on the sliding floor Sb.

But bar 39 is adapted in rearward end and adsorption plate 22 and links and link at leading section and dynamic pressure plate 12.Therefore, but bar 39 when mold closing along with the front of adsorption plate 22 and then advance and dynamic pressure plate 12 is advanced, but and when die sinking, retreat along with retreating of adsorption plate 22 and dynamic pressure plate 12 retreated.For this reason, be formed for hole 41 that bar 39 is run through at the middle body of rear fender 13.

But line motor 28 is for being used for making the mould driven for opening and closing section of dynamic pressure plate 12 advance and retreat, but for example be equipped on and adsorption plate 22 and framework Fr that dynamic pressure plate 12 links between.In addition, but line motor 28 also can be equipped between dynamic pressure plate 12 and the framework Fr.

Line motor 28 possesses stator 29 and mover 31.Stator 29 forms on framework Fr parallel with guiding piece Gd and corresponding with the moving range of sliding floor Sb.Mover 31 is opposed and spread all over preset range and form at the lower end of sliding floor Sb and stator 29.

Mover 31 possesses iron core 34 and coil 35.And unshakable in one's determination 34 possess a plurality of magnetic pole tooths 33 outstanding towards stator 29 and that form with preset space length, and coil 35 packages are on each magnetic pole tooth 33.In addition, but magnetic pole tooth 33 form in the direction vertical with the moving direction of dynamic pressure plate 12 and be parallel to each other.And stator 29 possesses not shown iron core and extends and the not shown permanent magnet of formation at this iron core.Alternately be subjected to magnetic to form this permanent magnet by each magnetic pole that makes the N utmost point and the S utmost point.The position sensor 75 of the position of configuration detection mover 31.

If drive line motor 28 by supplying with scheduled current to coil 35, then mover 31 is advanced and retreat.With this, but adsorption plate 22 and dynamic pressure plate 12 advance and retreat, thus can carry out mold closing and die sinking.According to the testing result FEEDBACK CONTROL line motor 28 of position sensor 75, so that the position of mover 31 becomes setting value.

In addition, in the present embodiment, permanent magnet is equipped on the stator 29, and coil 35 is equipped on the mover 31, but also coil can be equipped on the stator, and permanent magnet is equipped on the mover.At this moment, coil can not move along with the driving of line motor 28, therefore can carry out for the distribution to the coil supply capability like a cork.

In addition, can use rotation motor and convert rotatablely moving of rotation motor to straight-line ball screw framework etc. as mould driven for opening and closing section and replace line motor 28.

Electromagnet unit 37 produces mold clamping force by the absorption affinity of electromagnet between rear fender 13 and adsorption plate 22.But this absorption affinity is delivered to dynamic pressure plate 12 through bar 39.

In addition, but consist of mold closing mechanism 10 by fixation clip 11 dynamic pressure plates 12, rear fender 13, adsorption plate 22, line motor 28, electromagnet unit 37, bar 39 etc.And, consist of mold clamping force by electromagnet unit 37 grades and produce mechanism.Mold clamping force produce mechanism comprise to the coil 48 of electromagnet 49 supply with the 100(of electric current supply section of electric currents with reference to figure 3) and control the control device 60 of electric current supply section 100.

Electromagnet unit 37 is made of the electromagnet 49 that is formed at rear fender 13 sides and the adsorption section 51 that is formed at adsorption plate 22 sides.Adsorption section 51 is formed at the predetermined portions of the front end face of adsorption plate 22, for example in the adsorption plate 22 encircles rod 39 and with electromagnet 49 opposed parts.And, at the predetermined portions of the rear end face of rear fender 13, for example around bar 39, form groove 45, form more in the inner part coil 46 than groove 45, form more in the outer part yoke 47 than groove 45.And in groove 45, around 46 package coils 48 unshakable in one's determination.

In addition, in the present embodiment, separate to form electromagnet 49 with rear fender 13, separate forming adsorption section 51 with adsorption plate 22, but a part that also can be used as rear fender 13 forms electromagnet, form the adsorption section as the part of adsorption plate 22.And, also can dispose on the contrary electromagnet and adsorption section.For example, can electromagnet 49 be set in adsorption plate 22 sides, and in rear fender 13 sides adsorption section 51 be set.

In electromagnet unit 37, if supply with electric currents to coil 48, then electromagnet 49 is driven and to adsorbing adsorption section 51, can produce mold clamping force.

By the line motor 28 of control device 60 control mold closing mechanisms 10 and the driving of electromagnet 49.Control device 60 possesses CPU and memory etc., supplies with electric current according to the result by the CPU computing to the coil 35 of line motor 28 or the coil 48 of electromagnet 49.Connect loading detection device 55 on the control device 60.Loading detection device 55 is arranged at the precalculated position (precalculated position between fixation clip 11 and the rear fender 13) of at least 1 connecting rod 14 in mold closing mechanism 10, detect the load that puts on this connecting rod 14.Loading detection device 55 for example comprises the sensor of the elongation that detects connecting rod 14.Be sent to control device 60 by loading detection device 55 detected loads.

As shown in Figure 3, control device 60 is connected with the electric current supply section (driver) 100 that supplies with electric current to the coil 48 of electromagnet 49, controls electric current supply section 100.Control electric current supply sections 100 by matched moulds handling part 62 described later.

Electric current supply section 100 is connected with DC power supply (for example charger) PW, supplies with the electric current of the current value corresponding with the control signal of coming self-control device 60 to the coil 48 of electromagnet 49.Electric current supply section 100 is such as comprising power model etc.

Electric current supply section 100 can comprise not shown switching pilot switch, and this switching pilot switch becomes when only the door on being arranged at the cover of injection (mo(u)lding) machine is closed allows on-state from electric current to the coil 48 of electromagnet 49 that supply with.Become off-state if open and close pilot switch, then the electric current supply to the coil 48 of electromagnet 49 based on electric current supply section 100 is truncated.

In addition, opening and closing pilot switch can be connected in control device 60 and not be contained in electric current supply section 100.At this moment, become off-state if open and close the state of pilot switch, then control device 60 blocks the electric current supply to the coil 48 of electromagnet 49 based on electric current supply section 100.

Then, the action of mold closing mechanism 10 described.

Mould by control device 60 opens and closes handling part 61 control mold closing operations.Under the state (die opening state) of Fig. 2, mould opens and closes handling part 61 and drives line motor 28 to coil 35 supply electric currents.As shown in Figure 1, but before the dynamic pressure plate 12 and then dynamic models 16 and cover half 15 butts.At this moment, between rear fender 13 and the adsorption plate 22, namely form gap delta between electromagnet 49 and the adsorption section 51.In addition, compare with mold clamping force, the required power of mold closing is very little.

Then, the matched moulds handling part 62 control matched moulds operations of control device 60.Matched moulds handling part 62 is supplied with electric current to the coil 48 of electromagnet 49, and adsorption section 51 is adsorbed on the electromagnet 49.With this, but mold clamping force is delivered to dynamic pressure plate 12 through adsorption plate 22 and bar 39, thereby carries out matched moulds.

Mold clamping force is detected by loading detection device 55.Detected mold clamping force is sent to control device 60, and matched moulds handling part 62 control electric current supply sections 100 so that mold clamping force becomes setting value, and adjust and are supplied in the electric current of coil 48, and carry out FEEDBACK CONTROL.During this period, the molten resin of melting penetrates from injection nozzle 18 in injection device 17, is filled in the die cavity space of die device 19.

If the resin cooling curing in the die cavity space, then mould opens and closes handling part 61 control die sinking operations.Under the state of Fig. 1, matched moulds handling part 62 stops to supply with electric current to the coil 48 of electromagnet 49.With this, line motor 28 is driven, but dynamic pressure plate 12 retreat, as shown in Figure 2, dynamic model 16 retreats, thereby carries out die sinking.

The thick adjustment of mould during then, to replacing die device 19 describes.

If along with changing die device 19 new mold closing mechanism 19 is installed, then the thickness of die device 19 changes, and the gap delta that mold closing is formed between rear fender 13 and the adsorption plate 22 when finishing changes.

Therefore, injection (mo(u)lding) machine possesses the mould thickness adjusting device 70 according to the thickness adjusting play δ of die device 19.Mould thickness adjusting device 70 comprises the thick adjustment of mould motor 71, gear 72, nut 73, bar 39 etc.Bar 39 runs through the middle body of adsorption plate 22, and screw thread 43 is formed at the rearward end of bar 39.Screw thread 43 is screwed with the nut 73 that relative adsorption plate 22 is rotated freely supporting.The outer peripheral face of nut 73 forms not shown large diameter gear, this gear be installed on the small-diameter gear 72 of the thick adjustment of mould with the output shaft 71a of motor 71 and be meshed.Consist of direction of motion converter section by nut 73 and screw thread 43, in this direction of motion converter section, rotatablely moving of nut 73 converts the translatory movement of bar 39 to.

If corresponding with the thickness of die device 19 and drive the thick adjustment of mould with motor 71 and make nut 73 phase double threads 43 rotate scheduled volumes, then bar 39 is adjusted with respect to the position of adsorption plate 22, and but adsorption plate 22 is adjusted with respect to the position of fixation clip 11 and dynamic pressure plate 12, thereby can make gap delta become optimum value.That is, but to adjust mould thick by changing distance on the mould switching direction (left and right directions among the figure) between dynamic pressure plate 12 and the adsorption plate 22.

The thick adjustment of mould can be servo motor with motor 71, also can comprise the 71b of coding section.The 71b of coding section detects the thick adjustment of mould with the rotation amount of the output shaft 71a of motor 71 etc., and testing result is sent to control device 60.The thick adjustment of control device 60 FEEDBACK CONTROL moulds is with motor 71, so that gap delta becomes setting value.

Then, the installation of die device 19 described.

When new die device 19 was installed, die device 19 was temporarily fixed on fixation clip 11 being hung under the state of holding by crane etc. with bolt.Afterwards, but contact before the dynamic pressure plate 12 and then with die device 19, then die device 19 matched moulds.Under the matched moulds state, but cover half 15 and dynamic model 16 usefulness bolts formally are fixed in respectively on fixation clip 11 and the dynamic pressure plate 12.Also can use the replacement bolts such as clamping device that utilize hydraulic pressure or magnetic force.

Because formal fixing operation is undertaken by the door of opening on the cover that is arranged at injection (mo(u)lding) machine, therefore under the state that stops to supply with to the coil 48 of electromagnet 49 by electric current supply section 100 electric currents (below be also referred to as " halted state "), carry out.This is in order to get rid of the mistake start based on control device 60.

Halted state can be the driving of the drive source that according to the testing result of various detectors action is fed control (for example comprise electromagnet 49, line motor 28 and the thick adjustment of mould with motor 71) and controls self-braking servo off-state.

The injection (mo(u)lding) machine of present embodiment possesses electric circuit 200 from halted state to the coil 48 of electromagnet 49 that supply with electric current under.

As shown in Figure 3, electric circuit 200 connects coil 48 and DC power supply (for example charger) PW of electromagnet 49, supplies with electric current to electromagnet 49 independently with electric current supply section 100.Electric circuit 200 is different from electric current supply section 100, is not attached to control device 60, is not subjected to the control based on control device 60.

Supply with electric current by electric circuit 200 to the coil 48 of electromagnet 49, thereby 49 pairs of adsorption sections 51 of electromagnet are adsorbed.With this, but mold clamping force is delivered to dynamic pressure plate 12 through adsorption plate 22 and bar 39, thereby carries out matched moulds.Thus, can under halted state, produce mold clamping force, and can carry out the formal fixing operation of mould.

Electric circuit 200 is such as being made of hand switch 202, gap pilot switch 204 and variable resistance 206 etc.When hand switch 202 and gap pilot switch 204 both sides allow when supplying with the on-state of electric currents to coil 48, to the electric current of coil 48 supplies of electromagnet 49 current value corresponding with the resistance value of variable resistance 206, adsorb 49 pairs of adsorption sections 51 of electromagnet.

Hand switch 202 is allowed switch from electric current to the coil 48 of electromagnet 49 that supply with on-state with the off-state of forbidding of for manual switchover.Can begin, finish the electric current supply based on electric circuit 200 according to user's idea.

Gap pilot switch 204 is that predetermined value delta 0 becomes the on-state of permissible feed electric current when following being formed at gap delta between electromagnet 49 and the adsorption section 51 only, and becomes the off-state of forbidding supplying with electric current when gap delta surpasses predetermined value delta 0.Owing to be predetermined value delta 0 when following in gap delta only, allow the electric current supply based on electric circuit 200, so when adsorbing in 49 pairs of adsorption sections 51 of electromagnet, but can limit adsorption plate 22 or dynamic pressure plate 12, dynamic model 16 etc. advance.Predetermined value delta 0 for example is set in the scope of 1.0mm~1.5mm.

Gap pilot switch 204 can be the console switch that is arranged at rear fender 13 sides and operates by the operating sheet that is arranged at adsorption plate 22 sides.And the operation that gap pilot switch 204 also can be according to console switch switches to electromagnetic contactor of on-state and off-state etc.

In addition, configuration operation switch and operating sheet also can be disposed at console switch adsorption plate 22 sides and operating sheet is disposed at rear fender 13 sides on the contrary.And, can use contactless approach switch to replace console switch.

The current value of the electric current that variable resistance 206 will be supplied with to the coil 48 of electromagnet 49 is made as variable, and manually changes resistance value.Resistance value is got over step-down, and current value more rises, and the absorption affinity of electromagnet 49 is got over grow.Thus, can use variable resistance 206 to regulate mold clamping force.

Then, the installation method (formal fixing operation) of the die device 19 of the injection (mo(u)lding) machine that uses said structure described.

At first, after the temporary fixed operation, drive line motor 28, but make dynamic pressure plate 12 and dynamic model 16 butts.At this moment, the gap delta (>0) that is formed between electromagnet 49 and the adsorption section 51 becomes predetermined value delta below 0, and gap pilot switch 204 becomes on-state.After driving line motor 28 or before, but can use distance between mould thickness adjusting device 70 adjustment adsorption plates 22 and the dynamic pressure plate 11 so that gap delta becomes predetermined value delta below 0.

Then, if open the door of injection (mo(u)lding) machine, then injection (mo(u)lding) machine becomes halted state, is truncated based on the electric current supply to the coil 48 of electromagnet 49 of electric current supply section 100.

Then, supply with electric current by electric circuit 200 to the coil 48 of electromagnet 49.At first, hand switch 202 is made as on-state, then, the resistance value of variable resistance 206 is slowly descended, make the current value climbed that flows to coil 48 to setting value.Thus, adsorb 49 pairs of adsorption sections 51 of electromagnet, but mold clamping force is delivered to dynamic pressure plate 12 through adsorption plate 22 and bar 39, thereby carry out matched moulds.Therefore, can under the matched moulds state, carry out formal fixing operation.

More than, one embodiment of the present invention is illustrated, but the invention is not restricted to above-mentioned embodiment, in not departing from the scope of the present invention, can be in addition various distortion or the replacement of above-mentioned embodiment.

For example, the electric circuit 200 of above-mentioned embodiment can comprise following switch, namely allows when injection (mo(u)lding) machine is in halted state to the coil 48 of electromagnet 49 and supplies with electric current, forbids when halted state is removed supplying with electric current to coil 48.Can avoid electric circuit 200 and 100 both sides of electric current supply section to supply with electric current to the coil 48 of electromagnet 49 simultaneously.

Claims (3)

1. injection (mo(u)lding) machine is characterized in that possessing:
The 1st fixed part, it is equipped with cover half;
The 1st movable member, it is equipped with dynamic model;
The 2nd movable member, itself and the 1st movable member are together mobile;
The 2nd fixed part, it is equipped between described the 1st movable member and described the 2nd movable member; And
Mold clamping force produces mechanism, and its absorption affinity by electromagnet produces mold clamping force between the 2nd fixed part and described the 2nd movable member,
This mold clamping force generation mechanism comprises the control device of supplying with the electric current supply section of electric current and controlling this electric current supply section to described magnet spool,
Described injection (mo(u)lding) machine is provided with electric circuit, and it supplies with electric current to described coil stopping under the control based on this control device supplying with to described coil by described electric current supply section under the state of electric current.
2. injection (mo(u)lding) machine claimed in claim 1, wherein,
Described electric circuit comprises variable resistance, and it can change the current value of the electric current that supplies to described coil.
3. claim 1 or 2 described injection (mo(u)lding) machines, wherein,
Described electric circuit comprises switch, it is that predetermined value is when following being formed at described electromagnet and being adsorbed in gap between the adsorption section of described electromagnet, allow to described coil and supply with electric current, when surpassing predetermined value in described gap, forbid supplying with electric current to described coil.
CN201210326492.4A 2011-09-08 2012-09-05 Injection (mo(u)lding) machine CN102990883B (en)

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