CN110315715A - Injection (mo(u)lding) machine - Google Patents

Abstract

The present invention provides a kind of injection (mo(u)lding) machine of cooling body for having cooling performance excellent with easy structure.Injection (mo(u)lding) machine (10) of the invention, at least have injection device (300) and mold closing mechanism (100), in the injection (mo(u)lding) machine, in injection device (300) and mold closing mechanism (100) at least any one have through driving source (350,160) driven movable member, and movable member has cooling fin.

Description

Injection (mo(u)lding) machine

Technical field

This application claims the priority based on Japanese patent application filed on March 28th, 2018 the 2018-062803rd. The entire content of this Japanese application is incorporated by reference in this manual.

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

Background technique

In the past, for the fever being cooled into when the movable member of injection (mo(u)lding) machine is run, by air-cooled fan etc. come cold But movable member.However, there is limitation in the space that air-cooled fan is arranged in the inside of injection (mo(u)lding) machine, also, have because of necessity Power supply and wiring etc. and cause component number of packages increase the problem of.It is therefore proposed that a kind of injection (mo(u)lding) machine, with AC servo horse Cover, and fixing pipe and radiator fan on cover are arranged around up to the injection device for driving source, flow to cooling fluid in pipe, So that cooling is because of heat caused by AC servo motor with radiated (such as referenced patent document 1).

Patent document 1: Japanese Patent Publication 3-59820 bulletin

However, shell is cooled down by making cooling fluid flowing in the electric injection moulding machine recorded in patent document 1, Therefore the equipment and pipe for needing to be used to above be lauched with various linear arrangings, so that cooling body becomes complicated.Also, due to not straight The movable member of cooling fever is connect, therefore cooling performance has room for improvement.

Summary of the invention

The present invention is completed in view of the above subject, and its purpose is to provide one kind to have cooling performance with easy structure The injection (mo(u)lding) machine of excellent cooling body.

In order to realize the purpose, the injection (mo(u)lding) machine of a mode of the invention at least has injection device and molding dress Set, in the injection device and the mold closing mechanism at least any one have through the driven movable member of driving source, and The movable member has cooling fin.

Invention effect

A mode according to the present invention, can be improved a kind of has the excellent cooling body of cooling performance with easy structure Injection (mo(u)lding) machine.

Detailed description of the invention

Fig. 1 is the figure of the state at the end of the die sinking of injection (mo(u)lding) machine involved in one embodiment of expression.

Fig. 2 is the figure of state when indicating the molding of injection (mo(u)lding) machine involved in an embodiment.

Fig. 3 is the ball screw framework indicated involved in the 1st embodiment as the movable member with cooling performance The figure of state before middle thread spindle is mobile.

Fig. 4 (a) is the figure for indicating the ball-screw of ball screw framework involved in the 1st embodiment, and Fig. 4 (b) is table Show the figure of the variation of ball-screw.

Fig. 5 is the ball screw framework indicated involved in the 1st embodiment as the movable member with cooling performance The figure of state after middle thread spindle is mobile.

Fig. 6 is the figure for indicating the 1st variation of ball screw framework involved in the 1st embodiment.

Fig. 7 is the figure for indicating the 2nd variation of ball screw framework involved in the 1st embodiment.

Fig. 8 is the figure for indicating the 3rd variation of ball screw framework involved in the 1st embodiment.

Fig. 9 is the ball screw framework indicated involved in the 2nd embodiment as the movable member with cooling performance Figure.

Figure 10 is the ball screw framework indicated involved in the 2nd embodiment as the movable member with cooling performance Other application example figure.

In figure: 10- injection (mo(u)lding) machine, 100- mold closing mechanism, 130- toggle seat, 150- toggle mechanism, 160- mold motor (driving source), 170,170A, 170B- movement conversion mechanism (ball screw framework), 170C, 170D- movement conversion mechanism (ball Screw mechanism), 171,171A- thread spindle (movable member), 172,172A- nut (movable member), 173,173A, 173B- dissipate Backing, 174,174A- cooling fin, 175- shell, 176,177- cooling fin, 300- injection device, 350- inject motor (driving Source), 370- movement conversion mechanism (ball screw framework).

Specific embodiment

Hereinafter, being illustrated with reference to attached drawing to injection (mo(u)lding) machine involved in embodiment.In addition, this specification and attached drawing In, identical symbol is marked to substantially the same constitutive requirements to omit repeated explanation sometimes.

[injection (mo(u)lding) machine involved in embodiment]

Firstly, being illustrated referring to Figure 1 and Figure 2 to the overall schematic structure of injection (mo(u)lding) machine involved in embodiment. In addition, X-direction, Y-direction and Z-direction are mutually orthogonal direction in Fig. 1 and Fig. 2.Specifically, x-direction and y-direction is water Square to Z-direction is vertical direction.Also, X-direction is and the movable pressure plate 120 of injection (mo(u)lding) machine 10 and injection device 300 The identical direction of moving direction and mould opening and closing direction, Y-direction is the width direction of injection (mo(u)lding) machine 10.In addition, mold closing mechanism 100 When being horizontal, X-direction is that mould is opened and closed direction, and Y-direction is the width direction of injection (mo(u)lding) machine 10.

(overall structure of injection (mo(u)lding) machine)

Fig. 1 is the figure of the state at the end of the die sinking of injection (mo(u)lding) machine involved in one embodiment of expression, and Fig. 2 is to indicate The figure of state when the molding of injection (mo(u)lding) machine involved in one embodiment.In Fig. 1 and Fig. 2, X-direction, Y-direction and Z-direction For mutually orthogonal direction.X-direction and y-direction indicates that horizontal direction, Z-direction indicate vertical direction.Mold closing mechanism 100 is horizontal When, X-direction is that mould is opened and closed direction, and Y-direction is the width direction of injection (mo(u)lding) machine 10.As shown in Figures 1 and 2, injection (mo(u)lding) machine 10 have mold closing mechanism 100, liftout attachment 200, injection device 300, mobile device 400, control device 700 and frame 900.With Under, each constitutive requirements of injection (mo(u)lding) machine 10 are illustrated.

(mold closing mechanism)

In the explanation of mold closing mechanism 100, the moving direction of the movable pressure plate 120 when with die closing (Fig. 1 and Fig. 2 in right direction) For front, the moving direction of the movable pressure plate 120 when being opened (Fig. 1 and Fig. 2 in left direction) is rear to be illustrated.

Die closing, molding and the die sinking of the progress die device 800 of mold closing mechanism 100.Mold closing mechanism 100 is for example, horizontal, mould Opening and closing direction is horizontal direction.Mold closing mechanism 100 has fixation clip 110, movable pressure plate 120, toggle seat 130, connecting rod 140, toggle mechanism 150, molding motor 160, movement conversion mechanism 170 and mould thickness adjustment mechanism 180.

Fixation clip 110 is fixed on frame 900.It is equipped in the face opposite with movable pressure plate 120 of fixation clip 110 Cover half 810.

Movable pressure plate 120 is moved freely relative to frame 900 along mould opening and closing direction.It is movable that guidance is equipped on frame 900 The guiding piece 101 of pressing plate 120.Dynamic model 820 is installed in the face opposite with fixation clip 110 of movable pressure plate 120.

Movable pressure plate 120 is set to retreat relative to fixation clip 110, to carry out die closing, molding and die sinking.By cover half 810 Die device 800 is constituted with dynamic model 820.

Toggle seat 130 and fixation clip 110 link across interval, and are movably placed in frame along mould opening and closing direction On 900.In addition, toggle seat 130 can also be moved freely along the guiding piece being layed on frame 900.The guiding piece of toggle seat 130 It can be general with the guiding piece 101 of movable pressure plate 120.

In addition, fixation clip 110 is fixed on frame 900, and toggle seat 130 is relative to frame 900 along mould in present embodiment Opening and closing direction, which is moved freely, is fixed on frame 900 but it is also possible to be toggle seat 130, and fixation clip 110 is relative to 900 edge of frame Mould opening and closing direction moves freely.

Connecting rod 140 is on mould opening and closing direction across interval L connection fixation clip 110 and toggle seat 130.Connecting rod 140 A plurality of (such as 4) can be used.Each connecting rod 140 is parallel with mould opening and closing direction, and is stretched according to mold clamping force.It can be extremely The connecting rod strain detector 141 of the strain of setting detection connecting rod 140 in few 1 connecting rod 140.Connecting rod strain detector The signal for indicating its testing result is sent to control device 700 by 141.The testing result of connecting rod strain detector 141 is being closed It is used in detection of mould power etc..

In addition, as the molding force detector of detection mold clamping force, using connecting rod strain detector in present embodiment 141, but the present invention is not limited to this.Molding force detector is not limited to strain gage type, is also possible to piezoelectric type, condenser type, liquid Pressure type, electromagnetic type etc., installation site are also not limited to connecting rod 140.

Toggle mechanism 150 is disposed between movable pressure plate 120 and toggle seat 130, and makes movable pressure plate 120 relative to toggle Seat 130 is moved along mould opening and closing direction.Toggle mechanism 150 is made of crosshead 151, a pair of links group etc..Each connection rod set has logical It crosses pin etc. and is connected to the 1st connecting rod 152 and the 2nd connecting rod 153 to bend and stretch the limbs freely.1st connecting rod 152 is mounted to by pin etc. relative to can Dynamic pressure plate 120 is swung freely, and the 2nd connecting rod 153 is mounted to swing freely relative to toggle seat 130 by pin etc..2nd connecting rod 153 Crosshead 151 is installed on via the 3rd connecting rod 154.If make crosshead 151 relative to toggle seat 130 retreat, the 1st connecting rod 152 and 2nd connecting rod 153 is bent and stretched, and movable pressure plate 120 is retreated relative to toggle seat 130.

In addition, the structure of toggle mechanism 150 is not limited to Fig. 1 and structure shown in Fig. 2.Such as in Fig. 1 and Fig. 2, respectively The quantity of the node of connection rod set is 5 but it is also possible to be 4, and the one end that can be the 3rd connecting rod 154 is incorporated into the 1st connecting rod The node of 152 and the 2nd connecting rod 153.

Molding motor 160 is installed on toggle seat 130, and toggle mechanism 150 is made to work.Molding motor 160 makes 151 phase of crosshead It retreats for toggle seat 130, thus bends and stretches the 1st connecting rod 152 and the 2nd connecting rod 153, and make movable pressure plate 120 relative to toggle Seat 130 is retreated.Molding motor 160 is directly linked to movement conversion mechanism 170, but can also be linked to fortune via band and belt wheel etc. Manual converting mechanism 170.

The rotary motion for molding motor 160 is converted into the linear motion of crosshead 151 by movement conversion mechanism 170.Movement Switching mechanism 170 includes thread spindle 171 and the nut 172 for being screwed together in thread spindle 171.Can thread spindle 171 and nut 172 it Between be folded with ball or roller.

Mold closing mechanism 100 carries out die closing process, molding process and die sinking process etc. under the control of control device 700.

In die closing process, driving molding motor 160 makes crosshead 151 advance to die closing end position with setting speed, by This makes movable pressure plate 120 advance so that dynamic model 820 is contacted with cover half 810.The position and speed of crosshead 151 is for example using molding The detection such as motor encoder 161.The rotation of the detection molding motor 160 of motor encoder 161 is molded, and will indicate its testing result Signal be sent to control device 700.In addition, the crosshead position detector and detection cross of the position of detection crosshead 151 The crosshead speed detector of first 151 speed is not limited to molding motor encoder 161, is also able to use general detection Device.Also, detect movable pressure plate 120 position movable pressure plate position detector and detect movable pressure plate 120 speed can Dynamic pressure plate speed detector is not limited to molding motor encoder 161, is able to use general detector.

Mold process in, further driving molding motor 160 make crosshead 151 from die closing end position be advanced further to Thus die-closed position generates mold clamping force.Cavity space 801 (referring to Fig. 2), note are formed when molding between dynamic model 820 and cover half 810 Moulding material of the injection device 300 in 801 filling liquid of cavity space.It is formed by the solidification of the moulding material of filling Product.The quantity of cavity space 801 can be multiple, can obtain multiple molded products simultaneously at this time.

It being opened in process, driving molding motor 160 retreats crosshead 151 to die sinking end position with setting speed, by This retreats movable pressure plate 120 so that dynamic model 820 is separated from cover half 810.Later, liftout attachment 200 is ejected from dynamic model 820 and is formed Product.

Setting condition in die closing process and molding process is set together as a series of setting conditions.For example, conduct A series of setting conditions and set die closing process together and mold the speed and position (including die closing of the crosshead 151 in process Starting position, speed switching position, die closing end position and die-closed position), mold clamping force.Die closing starting position, speed toggle bit Set, die closing end position and die-closed position are arranged successively from rear side towards front and indicate the section for being set with speed starting point and Terminal.To each section setting speed.Speed switching position can be at one, be also possible to many places.It can not also setting speed Switching position.Any of die-closed position and mold clamping force can also only be set.

Setting condition in die sinking process is also set in the same manner.For example, being set out together as a series of setting conditions The speed of crosshead 151 in die process and position (including die sinking starting position, speed switching position and die sinking end position). Die sinking starting position, speed switching position and die sinking end position are arranged successively from front side towards rear and indicate to be set with speed Section beginning and end.To each section setting speed.Speed switching position can be at one, be also possible to many places.? It can not setting speed switching position.Die sinking starting position and die-closed position can be same position.Also, it is opened end position It can be same position with die closing starting position.

Speed and the position of movable pressure plate 120 are set alternatively, it is also possible to the speed of replacement crosshead 151 and position etc. Deng.Also, it also can replace the position (such as die-closed position) of crosshead and the position of movable pressure plate and set mold clamping force.

The increase of toggle mechanism 150 molds the driving force of motor 160 and is transferred to movable pressure plate 120.Its increase multiplying factor also by Referred to as toggle multiplying power.Toggle multiplying power angle θ according to formed by the 1st connecting rod 152 and the 2nd connecting rod 153 is (hereinafter also referred to as " link angle θ ") and change.Link angle θ is found out according to the position of crosshead 151.When link angle θ is 180 °, toggle multiplying power is maximum.

Replacement and the temperature change of die device 800 because of die device 800 etc. cause the thickness of die device 800 to occur When variation, the adjustment of mould thickness is carried out to obtain defined mold clamping force in molding.Mould thickness adjustment in, such as by fixation clip 110 with Interval L between toggle seat 130 is adjusted to, in the time point toggle mechanism 150 that the mould that dynamic model 820 is contacted with cover half 810 contacts Link angle θ becomes defined angle.

Mold closing mechanism 100, which has, carries out mould thickness tune by adjusting the interval L between fixation clip 110 and toggle seat 130 Whole mould thickness adjustment mechanism 180.Mould thickness adjustment mechanism 180 includes thread spindle 181, is formed in the rear end of connecting rod 140；Spiral shell Mother 182, is rotatably freely held on toggle seat 130；And mould thickness adjusts motor 183, makes the nut for being screwed together in thread spindle 181 182 rotations.

Thread spindle 181 and nut 182 are set in each connecting rod 140.The rotation that mould thickness adjusts motor 183 can be via Rotation transfer part 185 is transferred to multiple nuts 182.It can make multiple 182 synchronous rotaries of nut.In addition, can also pass through change The transmission path of transfer part 185 is rotated to make each spinning of multiple nuts 182.

Rotation transfer part 185 by gear such as constituting.In this case, being formed with driven tooth in the periphery of each nut 182 Wheel is equipped with driving gear in the output shaft of mould thickness adjustment motor 183, and engages with multiple driven gears and driving gear Between gear be rotatably freely held at the central portion of toggle seat 130.In addition, rotation transfer part 185 also can replace gear and It is made of band and belt wheel etc..

The movement of mould thickness adjustment mechanism 180 is controlled the control of device 700.Control device 700 drives mould thickness to adjust horse Up to 183 so that nut 182 rotates, the toggle seat 130 that nut 182 is remained and is rotated freely thus is adjusted relative to fixation clip 110 position, so as to adjust the interval L between fixation clip 110 and toggle seat 130.

In addition, nut 182 is rotatably freely held in toggle seat 130 in present embodiment, the company of thread spindle 181 is formed Extension bar 140 is fixed on fixation clip 110, but the present invention is not limited to this.

For example, it may be nut 182 is rotatably freely held in fixation clip 110, connecting rod 140 is fixed on toggle seat 130.In this case, interval L can be adjusted by making the rotation of nut 182.

And it is possible to be that nut 182 is fixed on toggle seat 130, connecting rod 140 is rotatably freely held in fixation clip 110.In this case, interval L can be adjusted by making the rotation of connecting rod 140.

Further, it is also possible to be that nut 182 is fixed on fixation clip 110, connecting rod 140 is rotatably freely held in toggle seat 130.In this case, interval L can be adjusted by making the rotation of connecting rod 140.

Interval L adjusts motor encoder 184 using mould thickness to detect.Mould thickness adjusts motor encoder 184 and detects mould thickness tune The rotation amount of whole motor 183 and direction of rotation, and the signal for indicating its testing result is sent to control device 700.Mould thickness tune The testing result of whole motor encoder 184 is used at the position and interval L for monitoring and controlling toggle seat 130.In addition, detection elbow The interval detector of the toggle seat position detector and detection interval L that save the position of seat 130 is not limited to mould thickness adjustment motor Encoder 184 is able to use general detector.

Between mould thickness adjustment mechanism 180 is adjusted by making one in the thread spindle mutually screwed togather 181 and nut 182 to rotate Every L.Multiple mould thickness adjustment mechanisms 180 can be used, multiple mould thickness adjustment motors 183 also can be used.

In addition, the mould thickness adjustment mechanism 180 of present embodiment is spaced L to adjust, and has and be formed in connecting rod 140 Thread spindle 181 and the nut 182 for being screwed together in thread spindle 181, but the present invention is not limited to this.

For example, mould thickness adjustment mechanism 180 can have the connecting rod thermosistor for adjusting the temperature of connecting rod 140.Connecting rod Thermosistor is installed on each connecting rod 140, the temperature of a plurality of connecting rod 140 of Joint regulation.The temperature of connecting rod 140 is higher, connection Bar 140 is elongated because of thermal expansion, and interval L is caused to become larger.The temperature of a plurality of connecting rod 140 also can be adjusted independently.

Connecting rod thermosistor adjusts connecting rod 140 by heating for example including heaters such as heaters (heater) Temperature.Connecting rod thermosistor includes the coolers such as water-cooled jacket, and the temperature of connecting rod 140 can be adjusted by cooling.Connecting rod Thermosistor may include heater and cooler both sides.

In addition, it is the horizontal but it is also possible to be mould of horizontal direction that the mold closing mechanism 100 of present embodiment, which is mould opening and closing direction, Being opened and closed direction is the vertical of up and down direction.Vertical mold closing mechanism has lower platen, top board, toggle seat, connecting rod, toggle machine Structure and molding motor etc..Any of lower platen and top board are used as fixation clip, another is used as movable pressure plate. Lower die is installed in lower platen, upper mold is installed in top board.Die device is constituted by lower die and upper mold.Lower die can be via rotation Turntable is installed on lower platen.Toggle seat is disposed in the lower section of lower platen, links via connecting rod and top board.Connecting rod is opened along mould Direction is closed across interval connection top board and toggle seat.Toggle mechanism is disposed between toggle seat and lower platen, makes movable pressure plate Lifting.Molding motor makes toggle mechanism work.When mold closing mechanism is vertical, the item number of connecting rod is usually 3.In addition, connection The item number of bar is not particularly limited.

In addition, the mold closing mechanism 100 of present embodiment has molding motor 160 as driving source, but it also can replace conjunction Mould motor 160 and have hydraulic cylinder.Also, mold closing mechanism 100 can be used as mould opening and closing the linear motor of apparatus and as molding With with electromagnet.

(liftout attachment)

In the explanation of liftout attachment 200, identically as the explanation of mold closing mechanism 100, movable pressure plate 120 when with die closing Moving direction (Fig. 1 and Fig. 2 in right direction) is front, and the moving direction of the movable pressure plate 120 when being opened is (left in Fig. 1 and Fig. 2 Direction) it is rear to be illustrated.

Liftout attachment 200 ejects molded product from die device 800.There is liftout attachment 200 ejection motor 210, movement to turn It changes planes structure 220 and knock-pin 230 etc..

Ejection motor 210 is installed on movable pressure plate 120.Ejection motor 210 is directly linked to movement conversion mechanism 220, but Movement conversion mechanism 220 can also be linked to via band and belt wheel etc..

The rotary motion for ejecting motor 210 is converted into the linear motion of knock-pin 230 by movement conversion mechanism 220.Movement Switching mechanism 220 includes thread spindle and the nut for being screwed together in thread spindle.Can be folded between thread spindle and nut ball or Roller.

Knock-pin 230 is free to advance or retreat in the through hole of movable pressure plate 120.The front end of knock-pin 230 with it is free to advance or retreat The movable member 830 that ground is disposed in the inside of dynamic model 820 contacts.The front end of knock-pin 230 can connect with movable member 830 Knot, can not also link with it.

Liftout attachment 200 carries out ejection process under the control of control device 700.It ejects in process, driving ejection motor 210 make knock-pin 230 advance to ejection position from position of readiness with setting speed, and movable member 830 is thus made to advance to eject Molded product.Later, driving ejection motor 210 retreats knock-pin 230 with setting speed, and retreats movable member 830 to original The position of readiness come.The position and speed of knock-pin 230 is for example detected using ejection motor encoder 211.Eject motor encoder The signal for indicating its testing result is simultaneously sent to control device 700 by the rotation of the detection ejection motor 210 of device 211.In addition, detection The knock-pin speed detector of the speed of the knock-pin position detector and detection knock-pin 230 of the position of knock-pin 230 is not It is defined in ejection motor encoder 211, is able to use general detector.

(injection device)

In the explanation of injection device 300, illustrate difference with the explanation of mold closing mechanism 100 and liftout attachment 200, with filling When the moving direction (Fig. 1 and Fig. 2 in left direction) of screw rod 330 be front, moving direction (Fig. 1 of the screw rod 330 when measuring And right direction in Fig. 2) it is rear to be illustrated.

Injection device 300 is set to the sliding bottom 301 free to advance or retreat relative to frame 900, and relative to die device 800 is free to advance or retreat.Injection device 300 is contacted with die device 800, and the cavity space 801 into die device 800 is filled into Profile material.Injection device 300 is for example with cylinder body 310, nozzle 320, screw rod 330, measure motor 340, injection motor 350, pressure Force detector 360 etc..

Moulding material of the heating of cylinder body 310 from the supply of supply mouth 311 to inside.Moulding material is for example including resin etc..At Profile material is supplied for example formed as graininess, and with solid state to supply mouth 311.After supply mouth 311 is formed in cylinder body 310 Portion.The periphery at the rear portion of cylinder body 310 is provided with the coolers such as water cooling cylinder 312.In, cylinder body 310 more closer to the front than cooler 312 Periphery be provided with the heaters such as band heater 313 and temperature detector 314.

Cylinder body 310 is divided into multiple regions along the axial direction (Fig. 1 and Fig. 2 in left and right directions) of cylinder body 310.Each region is provided with Heater 313 and temperature detector 314.Control device 700 controls the heater 313 in each region so that temperature detector 314 Detection temperature become set temperature.

Nozzle 320 is set to the front end of cylinder body 310, and is pushed to die device 800.It is arranged in the periphery of nozzle 320 Having heaters 313 and temperature detector 314.Control device 700 controls heater 313 so that the detection temperature of nozzle 320 becomes Set temperature.

Screw rod 330 is arranged to rotate freely in cylinder body 310 and free to advance or retreat.If rotating screw rod 330, moulding material Front is sent to along the spiral helicine slot of screw rod 330.Moulding material is sent to front on one side, on one side by from cylinder body 310 Heat and gradually melt.As the moulding material of liquid is sent to the front of screw rod 330 and accumulates in the front of cylinder body 310, screw rod 330 retreat.Later, if screw rod 330 is made to advance, the moulding material accumulated in the liquid in 330 front of screw rod is projected from nozzle 320 And it is filled in die device 800.

Non-return ring 331 is movably installed on the front of screw rod 330 using as check-valves, and the check-valves is by screw rod 330 push to prevent moulding material from rearward being flow backwards from the front of screw rod 330 when front.

When making screw rod 330 advance, non-return ring 331 is pushed to rear because of the pressure of the moulding material in 330 front of screw rod, It is retreated until blocking the detent position of flow path of moulding material (with reference to Fig. 2) relative to screw rod 330.Prevent as a result, accumulation in The moulding material in 330 front of screw rod is rearward flow backwards.

On the other hand, when rotating screw rod 330, non-return ring 331 is sent to front because of the spiral helicine slot along screw rod 330 Moulding material pressure and be pushed to front, the release position of the flow path of open moulding material is advanced to relative to screw rod 330 (Fig. 1 reference).Moulding material is sent to the front of screw rod 330 as a result,.

Non-return ring 331 can be the corotation type rotated together with screw rod 330 and not rotate together with screw rod 330 non-total Turn any one of type.

Make non-return ring 331 relative to screw rod 330 in release position and detent position in addition, injection device 300 can have Between the driving source retreated.

Measure motor 340 rotates screw rod 330.The driving source for rotating screw rod 330 is not limited to measure motor 340, Such as can be hydraulic pump etc..

Injection motor 350 makes screw rod 330 retreat.Motor 350 will be injected by being provided between injection motor 350 and screw rod 330 Rotary motion be converted into screw rod 330 linear motion movement conversion mechanism etc..Movement conversion mechanism is for example with thread spindle And it is screwed together in the nut of thread spindle.Ball or roller etc. can be set between thread spindle and nut.The drive for making screw rod 330 retreat Dynamic source is not limited to injection motor 350, such as be also possible to hydraulic cylinder etc..

The pressure that the detection of pressure detector 360 is transmitted between injection motor 350 and screw rod 330.Pressure detector 360 is set It is placed in the transmission path of the power between injection motor 350 and screw rod 330, and detects the pressure for acting on pressure detector 360.

The signal for indicating its testing result is sent to control device 700 by pressure detector 360.Pressure detector 360 Testing result is controlling and is monitoring the pressure that screw rod 330 is subject to from moulding material, the back pressure for screw rod 330, the effect of screw rod 330 It is used whens the pressure etc. of moulding material.

Injection device 300 carries out measurement process, filling work procedure and pressure maintaining process etc. under the control of control device 700.

In measurement process, driving measure motor 340 rotates screw rod 330 with setting speed, along the helical form of screw rod 330 Slot moulding material is sent to front.Therewith, moulding material gradually melts.As the moulding material of liquid is sent to screw rod 330 Front and accumulate in the front of cylinder body 310, screw rod 330 retreats.The revolving speed of screw rod 330 is for example using measure motor encoder 341 detections.Measure motor encoder 341 detects the rotation of measure motor 340, and the signal for indicating its testing result is sent to Control device 700.In addition, the screw speed detector of the revolving speed of detection screw rod 330 is not limited to measure motor encoder 341, it is able to use general detector.

It in measurement process, is rapidly retreated to limit screw rod 330, injection motor 350 can be driven and screw rod 330 is applied Set back pressure.It is for example detected using pressure detector 360 for the back pressure of screw rod 330.Pressure detector 360 will indicate its detection As a result signal is sent to control device 700.If screw rod 330 is retreated to metering end position and is accumulated in the front of screw rod 330 There is the moulding material of specified amount, then measurement process terminates.

In filling work procedure, driving injection motor 350 makes screw rod 330 advance with setting speed, and will accumulate in screw rod 330 The moulding material of the liquid in front is filled in the cavity space 801 in die device 800.The position and speed of screw rod 330 is for example It is detected using injection motor encoder 351.The rotation of the detection injection motor 350 of motor encoder 351 is injected, and will indicate its inspection The signal for surveying result is sent to control device 700.If screw rod 330 position reach setting position, carry out from filling work procedure to The switching (so-called, V/P switching) of pressure maintaining process.The position for carrying out V/P switching is also referred to as V/P switching position.Screw rod 330 is set Constant speed degree can be changed according to the position of screw rod 330 and time etc..

In addition, screw rod 330 can be made in the setting after the position of screw rod 330 reaches setting position in filling work procedure Position temporarily ceases, and carries out V/P switching later.Before it will carry out V/P switching, also can replace the stopping of screw rod 330 and Make 330 dead slow ahead of screw rod or dead slow astern.Also, detect the screw position detector and detection screw rod of the position of screw rod 330 The screw speed detector of 330 speed is not limited to injection motor encoder 351, is able to use general detector.

In pressure maintaining process, driving injection motor 350 pushes screw rod 330 to front, and by the molding of the front end of screw rod 330 The pressure of material is (hereinafter also referred to as " keeping pressure ".) setting pressure is remained, the moulding material remained in cylinder body 310 is pushed away To die device 800.Insufficient amount of moulding material caused by capable of supplementing because of the cooling meat in die device 800.Keep pressure Power is for example detected using pressure detector 360.The signal for indicating its testing result is sent to control device by pressure detector 360 700.Keeping the setting value of pressure can change according to elapsed time after since the pressure maintaining process etc..

In pressure maintaining process, the moulding material of the cavity space 801 in die device 800 is gradually cooled down, and pressure maintaining process terminates When cavity space 801 the moulding material that is cured of entrance block.The state is referred to as gate seal, prevent moulding material from Cavity space 801 is flow backwards.After pressure maintaining process, process is begun to cool.In cooling process, the forming material in cavity space 801 is carried out The solidification of material.In order to shorten shaping cycle duration, measurement process can be carried out in cooling process.

In addition, the injection device 300 of present embodiment is coaxial reciprocating screw mode but it is also possible to be preplasticizing mode Deng.The injection device of preplasticizing mode supplies the moulding material melted in plasticizing cylinder to injection cylinder, and from injection cylinder to mould Has injecting forming material in device.Screw rod is rotated freely or is rotated freely and is movably disposed in plasticizing cylinder, plunger into It moves back and is disposed in injection cylinder freely.

Also, the injection device 300 of present embodiment is that the axial direction of cylinder body 310 is the horizontal of horizontal direction, but can also be with The axial direction for being cylinder body 310 is the vertical of up and down direction.The mold closing mechanism being combined with vertical injection device 300 is either vertical Formula is also possible to horizontal.Similarly, the mold closing mechanism being combined with horizontal injection device 300 is either horizontal be also possible to It is vertical.

(mobile device)

In the explanation of mobile device 400, identically as the explanation of injection device 300, the movement of the screw rod 330 when filling Direction (Fig. 1 and Fig. 2 in left direction) is front, and the moving direction of the screw rod 330 when measuring (Fig. 1 and Fig. 2 in right direction) is Rear is illustrated.

Mobile device 400 makes injection device 300 retreat relative to die device 800.Also, mobile device 400 is by nozzle 320 push die device 800 to, and generate nozzle contact pressure.Mobile device 400 includes hydraulic pump 410, the horse as driving source Up to 420, as hydraulic cylinder 430 of hydraulic actuator etc..

Hydraulic pump 410 has the 1st port 411 and the 2nd port 412.Hydraulic pump 410 is the pump for capableing of bidirectional rotation, is passed through The direction of rotation of switching motor 420, from the 1st port 411 and the 2nd port 412 any one port sucking working solution (such as Oil) and spue and generate hydraulic from another port.In addition, hydraulic pump 410 also can be from tank suction operation liquid and from the 1st port Any one port discharge working solution in 411 and the 2nd port 412.

Motor 420 makes hydraulic pump 410 work.Motor 420 is with rotation corresponding with the control signal of self-control device 700 is carried out Direction and torque actuated hydraulic pump 410.Motor 420 can be electric motor, be also possible to electric servomotor.

Hydraulic cylinder 430 has cylinder main body 431, piston 432 and piston rod 433.Cylinder main body 431 is fixed on injection device 300. The inside of cylinder main body 431 is divided into the cup 435 as Room the 1st and the rear chamber 436 as Room the 2nd by piston 432.Piston rod 433 are fixed on fixation clip 110.

The cup 435 of hydraulic cylinder 430 is connect via the 1st flow path 401 with the 1st port 411 of hydraulic pump 410.From the 1st port 411 working solutions to spue are supplied via the 1st flow path 401 to cup 435, and thus injection device 300 is pushed to front.Injection device 300 advance, and nozzle 320 is pushed to cover half 810.The performance of cup 435 is produced by the pressure of the working solution supplied from hydraulic pump 410 The function of the pressure chamber of the nozzle contact pressure of raw nozzle 320.

On the other hand, the rear chamber 436 of hydraulic cylinder 430 is connect via the 2nd flow path 402 with the 2nd port 412 of hydraulic pump 410. The working solution to spue from the 2nd port 412 is supplied via the 2nd flow path 402 to the rear chamber 436 of hydraulic cylinder 430, thus injection device 300 are pushed to rear.Injection device 300 retreats, and nozzle 320 is separated from cover half 810.

In addition, mobile device 400 includes hydraulic cylinder 430 in present embodiment, but the present invention is not limited to this.Such as It can replace hydraulic cylinder 430 and be transformed into the straight of injection device 300 using electric motor and by the rotary motion of the electric motor The movement conversion mechanism of line movement.

(control device)

Control device 700 is for example made of computer, has CPU (Central Processing as shown in FIG. 1 to FIG. 2 Unit: central processing unit) 701, storage mediums 702, input interface 703 and the output interface 704 such as memory.Control device 700 So that CPU701 is executed the program for being stored in storage medium 702, thus carries out various controls.Also, control device 700 passes through input Interface 703 is received from external signal, sends signal to outside by output interface 704.

Die closing process, molding process, die sinking process etc. is repeated in control device 700, thus produces molded product repeatedly. Also, control device 700 carries out measurement process, filling work procedure, pressure maintaining process etc. during carrying out molding process.It will be used to obtain A series of actions such as measurement process for obtaining molded product starts the movement until next measurement process starts and is also referred to as " note Material " or " molding cycle ".Also, the time needed for 1 material feeding is also referred to as " molding cycle time ".

The one-pass molding period for example successively have measurement process, die closing process, molding process, filling work procedure, pressure maintaining process, Cooling process, die sinking process and ejection process.Here sequence is the sequence that each process starts.Filling work procedure, pressure maintaining process and Cooling process carries out during molding process and starting until molding process and terminating.The time and die sinking work that molding process terminates The time consistency that sequence starts.In addition, multiple processes can also be carried out simultaneously in order to shorten shaping cycle duration.Such as metering work Sequence can carry out during the cooling process of upper primary molding cycles, in this case, die closing process can be in the first of molding cycles Stage beginning carries out.Also, filling work procedure can start during die closing process.Also, ejecting process can be in the die sinking process phase Between start.When being provided with the open and close valve of flow path of opening and closing nozzle 320, die sinking process can start during measurement process.This It is because starting during measurement process even if being opened process, as long as open and close valve closes the flow path of nozzle 320, moulding material It will not be leaked from nozzle 320.

Control device 700 is connect with operating device 750 and display device 760.Operating device 750 receives the input behaviour of user Make, signal corresponding with input operation is exported to control device 700.Display device 760 is shown under the control of control device 700 Show and operates corresponding operation picture with the input of operating device 750.

Operation screen uses in setting of injection (mo(u)lding) machine 10 etc..Operation screen have it is multiple, can be switched display or again Folded display.User looks at the operation screen shown in display device 760 on one side, operates operating device 750 on one side, is thus infused Penetrate the setting (input including setting value) etc. of molding machine 10.

Operating device 750 and display device 760 are for example made of touch panel, can integration.In addition, present embodiment Operating device 750 and display device 760 carried out integration, but can also be independently arranged.Also, operating device 750 can be with It is provided with multiple.

[with the movable member of cooling performance involved in the 1st embodiment]

Then, to there is cooling performance in the component parts for each device for constituting Fig. 1 and injection (mo(u)lding) machine shown in Fig. 2 10 The various embodiments of movable member be illustrated, wherein movable member is driven by driving source.Firstly, with reference to Fig. 3 to Fig. 5 pairs Movable member involved in 1st embodiment with cooling performance is illustrated.Fig. 3 is to indicate involved by the 1st embodiment The ball screw framework as the movable member with cooling performance in thread spindle it is mobile before state figure.Also, Fig. 4 It (a) is the figure of the ball-screw of ball screw framework involved in the 1st embodiment of expression, Fig. 4 (b) is to indicate ball-screw The figure of variation.Also, Fig. 5 is to indicate involved in the 1st embodiment as the ball wire with the but movable member of performance The figure of state after thread spindle is mobile in thick stick mechanism.

Hereinafter, the driving about movable member, " rotation " further includes rotating not other than rotation more than circulation primary To primary rotation.It also, include being rotated clockwise and counterclockwise when being observed from the front the movable member of rotation in direction of rotation Rotate both.Also, " movement " indicates that nut and thread spindle etc. are advanced axially relative and retreat, according to axial extended direction, Include the case where the situation etc. for moving He along inclined direction moving in the horizontal direction.Also, in addition to the feelings unidirectionally moved along axial direction Except condition, include the case where along axial way moving (advance and retreat).

Fig. 3 indicates to form the movement conversion mechanism of the toggle mechanism of mold closing mechanism 100 150 170.Movement shown in Fig. 3 turns Rotary motion as the molding motor 160 of driving source is converted into the linear motion of crosshead 151 by structure 170 of changing planes.Movement turns Structure 170 of changing planes is the ball screw framework with thread spindle 171 and the nut 172 for being screwed together in thread spindle 171.In ball bearing machine Structure 163 is fixed with nut 172, in movement conversion mechanism 170, passes through the rotation for constituting the rotor 162 of molding motor 160, ball Bearning mechanism 163 and nut 172 are integrally rotated to the direction Q with rotor 162.That is, relative to the molding motor as driving source 160 and toggle seat 130, the nut 172 for forming movement conversion mechanism 170 is not moved and is only rotated.

On the other hand, the thread spindle 171 of formation movement conversion mechanism 170 is according to the rotation of the nut 172 in the direction Q along the side X To linear movement.By the movement of the thread spindle 171, crosshead 151 equally moves (linear motion) in X direction.Later, pass through The movement of the X-direction of the crosshead 151, by being connected to the 3rd connecting rod 154, the 2nd connecting rod 153 and the 1st that bend and stretch the limbs freely by pin etc. The constituted connection rod set of connecting rod 152 can move, and move movable pressure plate 120 along mould opening and closing direction relative to toggle seat 130.

As shown in Fig. 3, Fig. 4 (a), Fig. 4 (b) and Fig. 5, in the front end side for the thread spindle 171 for forming movement conversion mechanism 170 Side, multiple flat cooling fins 174 are installed across interval in the axial direction of thread spindle 171.

Also, as shown in Fig. 3 and Fig. 4 (a), in nut 172, direction of rotation, that is, direction Q (circumferential direction of nut 172) across Interval is equipped with multiple flat cooling fins 173.

The variation of the cooling fin of nut 172 is shown mounted in Fig. 4 (b).Cooling fin 173A involved in variation is The spiral helicine cooling fin being disposed in across interval around nut 172.

As shown in Fig. 4 (a), Fig. 4 (b), there is cooling fin 174 in the side of the end side of thread spindle 171, so as to make Cooling fin 174 is cooled down by outside air and via the cooling thread spindle 171 of cooling fin 174.In turn, thread spindle 171 moves in X direction It is dynamic, thus during outside air meanders through multiple cooling fin 174 along the direction R1, cooling fin 174 and 171 quilt of thread spindle Outside air is cooling.Also, the outside air of the meandering flow is also provided to the downstream of the meandering flow positioned at outside air The nut 173 of side and cool down nut 173.

In particular, multiple cooling fins 174 are installed across interval in moving direction, that is, X-direction of thread spindle 171, therefore When thread spindle 171 is mobile, can be easy, which makes above-mentioned outside air wriggle, is moved, to improve cooling performance.

On the other hand, as shown in Fig. 4 (a), there is cooling fin 173 in the outer peripheral surface of nut 172, therefore cooling fin can be made 173 are cooled down by outside air and via the cooling nut 172 of cooling fin 173.In addition, nut 172 is rotated along the direction Q, thus outside During portion's air meanders through multiple cooling fins 173 along the direction R2, cooling fin 173 is cooled down with nut 172 by outside air.

In particular, multiple cooling fins 173 are installed across interval in the direction of rotation of the nut 172, that is, direction Q (circumferential direction), because , when nut 172 rotates, can be easy, which makes above-mentioned outside air wriggle, moves, to improve cooling performance for this.

Also, as shown in Fig. 4 (b), when nut 172 has spiral helicine cooling fin 173A, nut 172 is rotated to the direction Q, To outside air along multiple spiral helicine cooling fin 173A screw thread to the direction R3 flow during, cooling fin 173A with Nut 172 is cooled down by outside air.In particular, cooling fin 173A is in the shape of a spiral, therefore the flowing of outside air becomes more smooth, More outside airs can be supplied to nut 172, therefore cooling performance improves.

Cooling fin 174 can be molded as one with thread spindle 171, can also with thread spindle 171 it is separately formed after pass through It is chimeric to wait installation.Also, cooling fin 173 can be molded as one with nut 172, can also pass through bonding after separately formed Deng fixation.

In this way, in, formation movement conversion mechanism 170 driven by the rotation for molding motor 160 as driving source Thread spindle 171 and nut 172 on cooling fin 174,173,173A be installed respectively, the thread spindle 171 and nut that when driving generates heat 172 can be cooled down by autorotation and movement.Also, thread spindle 171 and nut 171 be respectively provided with cooling fin 174, 173, the easy structure of 173A, and thread spindle 171 and nut 172 as movable member are directly cooled down, therefore cooling becomes Well.In addition, though the illustration is omitted, such as only nut 172 has cooling fin 173,173A, and thread spindle 171 is also possible to Do not have the movement conversion mechanism of cooling fin 174.

[the 1st variation of ball screw framework involved in the 1st embodiment]

Then, it is illustrated with reference to 1st variation of the Fig. 6 to ball screw framework involved in the 1st embodiment.Fig. 6 For the figure of the 1st variation of ball screw framework involved in the 1st embodiment of expression.

Ball screw framework 170A shown in fig. 6 has the shell 175 of made of metal or resin.Shell 175 passes through bolt Toggle seat 130 is fixed in fixed and welding or bonding etc..

There is the nut 172 for not moving and rotating towards the direction Q in the inner containment of shell 175.Later, shell 175 with The opposite side end face of molding motor 160 offers opening 175a, and thread spindle 171 is arranged to move in X direction via opening 175a It moves freely.As maintenance procedures, lubricating grease etc. is provided in thread spindle 171 and nut 172, but pass through the rotation of nut 172, it may Lubricating grease is set to be splashed to surrounding.As shown in the example of the figure, shell 175 surrounds nut 172, so as to inhibit lubricating grease to fly to surrounding It splashes.

It, on the other hand, may be from the nut of rotation in shell 175 by inhibiting lubricating grease to splash with shell 175 172 heat generated with mobile thread spindle 171 are easy to concentrate in shell 175.However, nut 172 is in direction of rotation, that is, direction Q On across interval there are multiple cooling fins 173, therefore each heat dissipation is for example cooled down by the outside air introduced from opening 175a Piece 173, so as to pass through the cooling nut 172 of each cooling fin 173.Also, pass through cooled nut 172, additionally it is possible to cooling Thread spindle 171.In addition, cooled cooling fin 173 is present in the inside of shell 175, so as to inhibit to store in shell 175 Heat.

[the 2nd variation of ball screw framework involved in the 1st embodiment]

Then, it is illustrated with reference to 2nd variation of the Fig. 7 to ball screw framework involved in the 1st embodiment.Fig. 7 For the figure of the 2nd variation of ball screw framework involved in the 1st embodiment of expression.

Ball screw framework 170B shown in Fig. 7 also identically as ball screw framework 170A shown in fig. 6, has metal The shell 175 of system or resin.Shell 175 shown in Fig. 7 has heat dissipation with the opposite medial surface of the nut 172 that is received Piece 176.

About the cross sectional shape of shell 175, specifically, when cutting off shell 175 on the direction orthogonal with thread spindle 171 The cross sectional shape of formation can be using various shapes such as rectangles round, including square.The cross sectional shape of shell 175 is circle When, in round inside, multiple flat cooling fins 176 are installed across interval in the circumferential.Also, the section of shell 175 When shape is rectangle, in the inside of 4 sides of rectangle, multiple tabulars are installed across interval in circumferential direction throughout 4 sides Cooling fin 176.In addition, cooling fin 176 other than tabular, is also possible to curved, such as it is also possible to Fig. 4 (b) institute The helical form shown.

There are multiple cooling fins 176 in the medial surface of shell 175, to make by the rotation of nut 172 by positioned at spiral shell Mother 172 periphery cooling fin 173 and generate air-flow and shell 175 medial surface cooling fin 176 collide, can be by this The collision of air-flow generates convection current.So by the convection current generated in shell 175, can be cooled effectively nut 172 it is whole with Thread spindle 171 in shell 175 is whole.

[the 3rd variation of ball screw framework involved in the 1st embodiment]

Then, it is illustrated with reference to 3rd variation of the Fig. 8 to ball screw framework involved in the 1st embodiment.Fig. 8 For the figure of the 3rd variation of ball screw framework involved in the 1st embodiment of expression.

Ball screw framework 170C shown in Fig. 8 also has metal identically as ball screw framework 170B shown in Fig. 7 System or resin-made housing 175 have cooling fin 176 with the opposite medial surface of the nut 172 that is accommodated.Ball screw framework In 170C, in shell 175 other than the cooling fin 176 for being formed in medial surface, multiple cooling fins are also formed in outer side 177。

The multiple cooling fins 177 for being formed in lateral surface can be set in position corresponding with multiple cooling fins 176 of medial surface It sets, it can also be interconnected in the position that multiple cooling fins 176 with medial surface are staggered.

There are multiple cooling fins 176 in the medial surface of shell 175, in addition to this face has multiple cooling fins 177 on the outside, To which the cold temperature that the cooling fin 177 of lateral surface is cooled down by outside air to be passed to the cooling fin 176 of medial surface, thus, it is possible to cold But cooling fin 176.In shell 175, by the rotation of nut 172, make the cooling fin 173 by the outside for being located at nut 172 And the cooling fin 176 of the medial surface of the air-flow and shell 175 generated collides, and pair of gas can be generated by the collision of the air-flow Stream.At this point, gas is collided with by the cooled cooling fin 176 of the transmitting of cold energy, so as to make cooling gas in shell Convection current is carried out in body 175.Therefore, by the convection current of the gas of the cooling, it can more effectively cool down 172 entirety of nut and be located at Thread spindle 171 in shell 175 is whole.

[ball screw framework involved in the 2nd embodiment as the movable member with cooling performance]

Then, with reference to Fig. 9 to the ball-screw involved in the 2nd embodiment as the movable member with cooling performance Mechanism is illustrated.Fig. 9 is the ball-screw indicated involved in the 2nd embodiment as the movable member with cooling performance The figure of mechanism.

In ball screw framework 170D shown in Fig. 9, thread spindle 171A is fixed in a manner of it can rotate is constituted molding The rotor 162 of motor 160.Ball bearing mechanism 163 is installed in toggle seat 130, thread spindle 171A is in a manner of it can rotate It is inserted in ball bearing mechanism 163.

It is different from ball screw framework 170 and 170C in ball screw framework 170D, by constituting molding motor 160 The rotation of rotor 162, ball bearing mechanism 163 and thread spindle 171A are rotated with 162 one of rotor towards the direction Q.That is, relative to work For the molding motor 160 and toggle seat 130 of driving source, the thread spindle 171A for forming movement conversion mechanism 170D do not move and only into Row rotation.

On the other hand, the nut 172A of movement conversion mechanism 170D is formed according to the rotation of the thread spindle 171A in the direction Q to X Direction linear movement.Crosshead 151 is installed in nut 172A.By the movement of nut 172A, crosshead 151 is equally to X Direction is mobile (linear motion).Later, it by the movement of the X-direction of the crosshead 151, is bent and stretched the limbs freely by being connected to by pin etc. The 3rd connecting rod 154, the connection rod set that constitutes of the 2nd connecting rod 153 and the 1st connecting rod 152 can move, and make movable pressure plate 120 relative to Toggle seat 130 is moved along mould opening and closing direction.

In ball screw framework 170D, nut 172A is mobile movable member, therefore in the periphery of nut 172A, is being moved Multiple discoid cooling fin 173B are installed across interval in dynamic direction (X-direction).

On the other hand, thread spindle 171A is the movable member for not moving and rotating, therefore in the end side of thread spindle 171A Side, circumferential in thread spindle 171A be equipped with multiple flat cooling fin 174A across interval.

Multiple cooling fin 173B are installed across interval in moving direction, that is, X-direction of nut 172A, therefore can be Nut 172A is easy to make outside air meandering flow when mobile, so that cooling performance improves.

On the other hand, multiple heat dissipations are installed across interval in the direction of rotation of the thread spindle 171A, that is, direction Q (circumferential direction) Piece 174A, therefore can be easy to make outside air meandering flow when thread spindle 171A rotates, so that cooling performance improves.

Though the movement conversion mechanism of nut 172A shown in Fig. 9 mobile form can also example in addition, the illustration is omitted Such as the shell of the size for the range that there is covering nut 172A to be moved.

[the other application example of ball screw framework involved in the 2nd embodiment]

Then, it is illustrated with reference to other application example of the Figure 10 to ball screw framework involved in the 2nd embodiment.Figure 10 be the figure for indicating the other application example of ball screw framework involved in the 2nd embodiment.

Ball screw framework 370 shown in Fig. 10 is applied to constitute the injection device 300 of injection (mo(u)lding) machine 10.

Firstly, being illustrated to the structure of injection device 300.In injection device 300, driven in funcition table for injecting 381 and injection 4 guide shafts 383 are provided between platform 382, on the guide shaft 383 front sliding block 384 and with sliding block 384 in front of this be it is seperated after Square sliding block 385, which is separately equipped with into, to be slid freely.Alternatively, it is also possible to being the form for not having rear sliding block 385.

Front sliding block 384 is formed as the tubular for having hollow portion in inside, by being disposed in the bearing 386 of the hollow portion, Screw rod shaft coupling 387 is supported to rotate freely, and is equipped with metering servo horse in the outer upper surface of front sliding block 384 Up to 340.

In the front end of screw rod shaft coupling 387 installation band tooth driven pulley 388, installed in the shaft 389 of servo motor 340 There is band tooth driving pulley 390, Timing Belt 391 is hung around band tooth driven pulley 388 and with being formed between tooth driving pulley 390 Rotary transfer machine.

On the other hand, in the rear end of the front end face installation cylinder body 310 of funcition table for injecting 381.Cylinder body 310 has at rear portion by hopper The supply mouth 311 of composition, and screw rod 330 is inserted in inside, and the rear end of the screw rod 330 is incorporated in screw rod shaft coupling 387 Centre.For the back pressure of screw rod 330, detected using pressure detector 360.Spiral shell can also be installed in the pressure detector 360 It is female.

At rear, the rear end face of sliding block 385 is fixed with the front end to form the nut 372 of ball screw framework 370.That is, nut 372 are installed on the rear end face of rear sliding block 385, and with the movement of nut 372, front sliding block 384 and 385 one of rear sliding block are moved It is dynamic.

On the other hand, injection driving platform 382 has hollow portion in inside, by the Bearning mechanism for being disposed in the hollow portion 393, rotatably bearing forms the rear end axle portion of the thread spindle 371 of ball screw framework 370.

Injection device 300 is set to sliding bottom 301 free to advance or retreat relative to frame 900 in X direction.Made by driving For the injection motor 350 of driving source, the thread spindle 371 for forming ball screw framework 370 is rotated to the direction Q, matching thread axis 371 Rotation, make 372 forward-reverse of nut, as the movement of nut 372 is so that front sliding block 384 and the one of rear sliding block 385 are moved It is dynamic.

In the periphery of mobile nut 372, multiple discoid cooling fins 373 are installed across interval in circumferential direction.In spiral shell Multiple cooling fins 373 are installed across interval in moving direction, that is, X-direction of mother 372, therefore can be held when nut 372 is mobile Easily make outside air meandering flow, to improve the cooling performance of ball screw framework 370.

Alternatively, it is also possible to being other for combining other constitutive requirements etc. in structure enumerated in the above-described embodiment etc. Embodiment, also, the present invention is not by any restriction of structure shown in this specification.About the point, can not take off From being changed in the range of spirit of the invention, also can suitably be determined according to it using form.For example, diagram illustrates Out, pacify in the movable member of the mold closing mechanism 100 and the respective ball screw framework of injection device 300 that form injection (mo(u)lding) machine 10 Fill gelled example.However, also cooling fin can be installed in other all movable members for forming injection (mo(u)lding) machine 10.Make For the movable member, can enumerate the movable pressure plate 120 to form mold closing mechanism 100 and the crosshead 151 for forming toggle mechanism 150 and Each connecting rod, the dynamic model 820 for forming die device 800, the movement conversion mechanism 220 for forming liftout attachment 200 and knock-pin 230, Form the cylinder body 310 etc. of injection device 300.

Claims (4)

1. a kind of injection (mo(u)lding) machine, at least has injection device and mold closing mechanism,

In the injection device and the mold closing mechanism at least any one have through the driven movable member of driving source, and The movable member has cooling fin.

2. injection (mo(u)lding) machine according to claim 1, wherein

The movable member is the nut or thread spindle to form ball screw framework.

3. injection (mo(u)lding) machine according to claim 2, wherein

At least part in the ball screw framework is contained in shell, and the shell is opposite with the ball screw framework The medial surface set has cooling fin.

4. injection (mo(u)lding) machine according to claim 2 or 3, wherein

The ball screw framework is the form that the nut is not moved and rotated, the thread spindle is mobile.