CN101098777A - Molding machine, injection device, and temperature control method for the device - Google Patents
Molding machine, injection device, and temperature control method for the device Download PDFInfo
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- CN101098777A CN101098777A CNA2005800461168A CN200580046116A CN101098777A CN 101098777 A CN101098777 A CN 101098777A CN A2005800461168 A CNA2005800461168 A CN A2005800461168A CN 200580046116 A CN200580046116 A CN 200580046116A CN 101098777 A CN101098777 A CN 101098777A
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Abstract
An injection device has a cylinder member having a supply opening (215) formed in a predetermined position of the member; an injection member provided so as to be advanceable and retreatable in the cylinder; a molding material supply device installed at the supply opening (215) and supplying a molding material into the cylinder through the supply opening (215); and thermal electric cooling elements (261-264) arranged at predetermined positions around the supply opening (215). Since the thermal electric cooling elements (261-264) are arranged at the predetermined positions around the supply opening (215), the temperature around the supply opening (215) can be set to an appropriate level and temperature control response can be improved. Further, when a thermal electric cooling element (g) is disposed between a housing (152) of a drive section and a heat transfer member, heat in the housing (152) is transmitted to the heat transfer member through the housing (152) and emitted to outside the drive member. Accordingly, rated torque produced by driving the drive section can be increased.
Description
Technical field
The present invention relates to make-up machine, injection device and temperature-controlled process thereof.
Background technology
In the past, in make-up machine, for example in injection (mo(u)lding) machine, will be as being heated in the cylinder in heating the resin of the moulding material of fusion, inject and be filled into the void space of mould (mold) device with high pressure, by in this void space, cooling off and making its curing, can obtain the moulding product.
Above-mentioned injection (mo(u)lding) machine has die device, mold closing mechanism and injection device, this injection device has the heating resin and makes the heating cylinder of its fusion and the injection nozzle of injecting the resin of fusion, and screw rod can rotate freely and can be configured in the above-mentioned heating cylinder with freely advancing and retreat.In addition,, carry out mold closing, matched moulds and the die sinking of die device, along with matched moulds, between said fixing mould and moveable die, form void space by make above-mentioned moveable die advance and retreat by above-mentioned mold closing mechanism.
Then, the injection motor that drives as the injection drive division advances above-mentioned screw rod, thus from the injection nozzle injecting resin and be filled into void space.And, drive as the metering of measuring and make the screw rod rotation with motor with drive division, carry out the metering of resin thus, and can store the resin of fusion in the place ahead of screw head.
When measurement process, while on above-mentioned screw rod, be formed with by supply port supply with the resin that falls from hopper supply unit, compress compression unit and each metering portion that measures the resin of fusion that the resin of being supplied with makes its fusion a certain amount ofly.And, in compression unit, the main body of above-mentioned screw rod, be that the external diameter of screw rod main body is more forwards big more, the gap between screw rod main body and the heating cylinder is forwards more little more, thereby makes resin be compressed (for example, with reference to patent documentation 1).
In addition, dispose a plurality of heaters, and dispose a plurality of temperature sensors, detect the temperature of heating cylinder by each temperature sensor at the assigned position of heating cylinder in the periphery of heating cylinder and the periphery of injection nozzle.And, respectively to each heater energising, control the temperature of the assigned position of above-mentioned heating cylinder, thereby the resin that will heat each position of cylinder is controlled to be different temperature according to detected temperature.
But when the temperature around the above-mentioned supply port uprised, the resin of supplying with from hopper was melted immediately, can not successfully measure.Therefore,, come supply port is cooled off on every side, and maintain suitable temperature and do not make the resin fusion by water circulate in this water-cooled cylinder at supply port configuration water-cooled cylinder.
In addition, above-mentioned mold closing mechanism comprises: the fixed head (platen) that is used to install above-mentioned fixed mould; The elbow cribbing of relative configuration with this fixed head; 4 connecting rods (tie-bar) that between said fixing plate and bracket, set up; Freely dispose with advancing and retreat, be used to install the movable platen of moveable die along each connecting rod; Be configured between above-mentioned elbow cribbing and the movable platen, stretched or crooked elbow type mechanism; Be used to make this linkage work, as matched moulds with the matched moulds of drive division with motor etc.Therefore, when driving this matched moulds and make elbow type mechanism work and movable platen is advanced, carry out mold closing, then, produce mold clamping force and carry out matched moulds with motor; When making elbow type mechanism work and movable platen is retreated, carry out die sinking.In addition, above-mentioned mold clamping force is delivered to moveable die by movable platen, and thereupon, the counter-force of mold clamping force is delivered to the elbow cribbing by each connecting rod.
But, as mentioned above,, be provided with the matched moulds motor in order to make above-mentioned elbow type mechanism work, and each motor is driven respectively in order to make the rotation of above-mentioned screw rod or to make its advance and retreat and be provided with metering with motor, injection motor etc.And, for the rated capacity that makes each motor becomes big, motor is disposed fan, and motor is carried out air-cooled (for example, with reference to patent documentation 2).
Patent documentation 1: Japanese kokai publication hei 11-227019 communique
Patent documentation 2: Japanese kokai publication hei 7-40408 communique
But in above-mentioned injection device in the past, because the thermal capacity of the water that circulates in the water-cooled cylinder is big, so temperature controlled response step-down, it is elongated to make temperature around the supply port become time of proper temperature.
In addition, in above-mentioned injection (mo(u)lding) machine in the past,, produce noise and dust is dispersed along with air-cooled work with fan.
Therefore, provide a kind of drive division register, between motor and thermosistor, form the circulatory system of temperature control medium, make temperature control medium circulation and cooling motor.But, at this moment, need the configuration thermosistor incessantly, also need temperature control medium is revealed from the circulatory system, so the cost of drive division register uprises.
Summary of the invention
The purpose of this invention is to provide a kind of injection device and temperature-controlled process thereof, solve the problem points of above-mentioned injection (mo(u)lding) machine, can make supply port temperature on every side become suitable temperature, and temperature controlled response is improved.
And another object of the present invention provides a kind of make-up machine, the rated capacity of drive division is increased, and can reduce the cost of drive division register.
Thus, in make-up machine of the present invention, comprising: the cylinder parts that are formed with supply port at assigned position; The injection member that in these cylinder parts, freely disposes with advancing and retreat; Be used to make the metering drive division of this injection member rotation; The injection drive division that above-mentioned injection member is advanced; Die device with fixed mould and moveable die; Carry out the mold closing mechanism of mold closing, matched moulds and the die sinking of this die device; Be arranged on the matched moulds drive division on this mold closing mechanism; Be installed on above-mentioned supply port, by supply port moulding material is supplied to moulding material feedway in the cylinder parts; Be arranged on the thermoelectric cooling element of assigned position.
In injection device of the present invention, comprising: the cylinder parts that are formed with supply port at assigned position; The injection member that in these cylinder parts, freely disposes with advancing and retreat; Be installed on above-mentioned supply port, by supply port moulding material is supplied to moulding material feedway in the cylinder parts; Be arranged on the thermoelectric cooling element of above-mentioned supply port assigned position on every side.
In other make-up machines of the present invention, comprising: the framework of housing stator and rotor; Cover outer peripheral face ground hot transfer member configuration, that have jog of this framework; With cooling surface towards the outer peripheral face of framework be configured in thermoelectric cooling element between above-mentioned framework and the hot transfer member.
According to the present invention, in make-up machine, comprising: the cylinder parts that are formed with supply port at assigned position; The injection member that in these cylinder parts, freely disposes with advancing and retreat; Be used to make the metering drive division of this injection member rotation; The injection drive division that above-mentioned injection member is advanced; Die device with fixed mould and moveable die; Carry out the mold closing mechanism of mold closing, matched moulds and the die sinking of this die device; Be arranged on the matched moulds drive division on this mold closing mechanism; Be installed on above-mentioned supply port, by supply port moulding material is supplied to moulding material feedway in the cylinder parts; Be arranged on the thermoelectric cooling element of assigned position.
At this moment, owing to be provided with thermoelectric cooling element at assigned position, thus can make the temperature around the assigned position become suitable temperature, and can improve temperature controlled response.
In injection device of the present invention, comprising: the cylinder parts that are formed with supply port at assigned position; The injection member that in these cylinder parts, freely disposes with advancing and retreat; Be installed on above-mentioned supply port, by supply port moulding material is supplied to moulding material feedway in the cylinder parts; Be arranged on the thermoelectric cooling element of above-mentioned supply port assigned position on every side.
At this moment, because the configuration of the assigned position around supply port thermoelectric cooling element, so can make the temperature around the supply port become suitable temperature, and can improve temperature controlled response.
In other make-up machines of the present invention, comprising: the framework of housing stator and rotor; Cover outer peripheral face ground hot transfer member configuration, that have jog of this framework; With cooling surface towards the outer peripheral face of framework be configured in thermoelectric cooling element between above-mentioned framework and the hot transfer member.
At this moment, because thermoelectric cooling element makes cooling surface be configured between above-mentioned framework and the hot transfer member towards the outer peripheral face of framework ground,, and be released to the drive division outside so the interior heat of framework is passed to the heat transfer member by framework.
Therefore, owing to can make, the rated capacity of drive division is increased by driving the nominal torque increase that drive division produces.And, can improve the durability of bearing.In addition, not only do not need to dispose thermosistor, there is no need to prevent that temperature control medium from revealing from the circulatory system yet, so can reduce the cost of drive division register.
Description of drawings
Fig. 1 is the concept map of the injection (mo(u)lding) machine in the 1st embodiment of the present invention.
Fig. 2 is the figure of the key component of the injection (mo(u)lding) machine in expression the 1st embodiment of the present invention.
Fig. 3 is the figure of the key component of the injection (mo(u)lding) machine in expression the 2nd embodiment of the present invention.
Fig. 4 is the schematic diagram of the drive division register in expression the 3rd embodiment of the present invention.
Symbol description
11 fixed moulds
12 moveable dies
51 injection devices
52 die devices
53 mold closing mechanisms
56 heating cylinders
57 screw rods
59 hoppers
66 metering motors
69 injection motors
96 matched moulds motors
152 frameworks
156 output shafts
158 stators
159 rotors
168 encoders
171 carriages
172 lids
175,176,266 radiators
215 supply ports
231 control parts
261～264,271, g, h thermoelectric cooling element
S1～s3 heater temperature sensor
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are elaborated.At this moment, the injection (mo(u)lding) machine as make-up machine is described.
Fig. 1 is the concept map of the injection (mo(u)lding) machine of the 1st embodiment of the present invention.
In Fig. 1, the 51st, injection device, the 52nd, by as the fixed mould 11 of the 1st mould and the die device that constitutes as the moveable die 12 of the 2nd mould, the 53rd, the mold closing mechanism that is oppositely arranged with above-mentioned injection device 51, the 54th, freely support the plasticizing movement device of above-mentioned injection device 51 with advancing and retreat, the 55th, backing-out punch (ejector) device, the 60th, as having the mould thickness adjusting device that elbow formula adjusting device works, fr1 is a make-up machine fuselage of supporting above-mentioned injection device 51, mold closing mechanism 53, plasticizing movement device 54 etc.
Above-mentioned injection device 51 comprises: as the heating cylinder 56 of cylinder parts; Rotate freely and be configured in with freely advancing and retreat in this heating cylinder 56, as the screw rod 57 of injection member; Be installed in the injection nozzle 58 of the front end of above-mentioned heating cylinder 56; Be arranged near the hopper 59 in rear end of above-mentioned heating cylinder 56; The screw shaft 61 that forms highlightedly from the rear end of above-mentioned screw rod 57; By as the load cell 70 of load detection portion and connected, as the front side support sector 71 of the 1st support sector; And, and comprise: pressing plate 62, freely configuration, and as the movable support sector of the above-mentioned screw shaft 61 of support as the rear side support sector 72 of the 2nd support sector with advancing and retreat with rotating freely; Be installed in the above-mentioned front side support sector 71, by wheel band (pulley belt) formula rotation transmission system (by as the driving wheel of driver part, as the driven pulley of slave unit and open the synchronous band that is located between driving wheel and the driven pulley and constitute as drive disk assembly) 65 is connected, uses the metering motor 66 of drive division with screw shaft 61 as metering; Be installed on the above-mentioned make-up machine fuselage fr1, by tyre type rotation transmission system (by as the driving wheel of driver part, as the driven pulley of slave unit and open the synchronous band that is located between driving wheel and the driven pulley and constitute as drive disk assembly) 68 75 that be connected with ball-screw as direction of motion transformation component, as the injection motor 69 of injection drive division etc.
Above-mentioned ball-screw 75 comprises: be transformed into as rotatablely moving straight-line direction of motion transformation component work, and as with the ballscrew shaft 73 of the 1st transform component that is connected of rotation transmission system 68; And be installed on rear side support sector 72, as the ball nut 74 of the 2nd transform component that screws togather with above-mentioned ballscrew shaft 73.
In addition, above-mentioned plasticizing movement device 54 comprises: make-up machine fuselage fr2; Be installed on this make-up machine fuselage fr2, move with the plasticising of drive division as plasticising and to move with motor 77; The guide part 78 length direction configuration, that guide front side support sector 71 and rear side support sector 72 along above-mentioned make-up machine fuselage fr2; Dispose with respect to make-up machine fuselage fr2 with rotating freely, by drive plasticising move 77 that rotate with motor, as the ballscrew shaft 81 of the 1st transform component; Ball nut 82 as the 2nd transform component that screws togather with this ballscrew shaft 81; Be installed on the carriage 83 of the rear end of above-mentioned heating cylinder 56; Be configured between above-mentioned ball nut 82 and the carriage 83 as spring 84 of force application part etc.
Therefore, move with motor 77, make injection device 51 advance, make injection nozzle 58 to be connected to fixed mould 11 in the moment of regulation, thereby can carry out the nozzle contact by driving plasticising.In addition, constitute ball-screw 86 by above-mentioned ballscrew shaft 81 and ball nut 82, this ball-screw 86 is transformed into straight-line direction of motion transformation component and works as rotatablely moving.
And above-mentioned mold closing mechanism 53 comprises: be installed on make-up machine fuselage fr1, as the fixed head 91 of the 1st fixed part; Elbow cribbing 92 as the 2nd fixed part; Be set up in the connecting rod 93 between said fixing plate 91 and the elbow cribbing 92; Relative with fixed head 91 and along connecting rod 93 freely with advancing and retreat configuration, as the movable platen 94 of movable member; Be disposed at the elbow type mechanism 95 between this movable platen 94 and the elbow cribbing 92; As the matched moulds motor 96 of matched moulds with drive division; Will by drive the tyre type rotation transmission system that rotation that this matched moulds produces with motor 96 is delivered to elbow type mechanism 95 (by as the driving wheel of driver part, as the driven pulley of slave unit and open a synchronous band that is located between driving wheel and the driven pulley and constitute as drive disk assembly) 97; 97 that be connected with this rotation transmission system, as the ball-screw 98 of direction of motion transformation component; 98 that be connected with this ball-screw, as slide block 99 of moving-member etc.And, be relatively fixed mutually mould 11 and moveable die 12 are installed respectively on said fixing plate 91 and movable platen 94.
Above-mentioned ball-screw 98 comprises: be transformed into as rotatablely moving straight-line direction of motion transformation component work, and as with the ballscrew shaft 101 of the 1st transform component that is connected of rotation transmission system 97; And be installed on slide block 99, as the ball nut 102 of the 2nd transform component that screws togather with above-mentioned ballscrew shaft 101.
And above-mentioned elbow type mechanism 95 comprises: the toggle link of supporting with respect to slide block 99 105 with freely swinging; The toggle link of supporting with respect to elbow cribbing 92 106 with freely swinging; And the elbow arm of supporting with respect to movable platen 94 107 with freely swinging.Link respectively between the toggle link 105,106 and between toggle link 106 and the elbow arm 107.
Above-mentioned elbow type mechanism 95 advances and retreat slide block 99 by matched moulds with motor 96 between elbow cribbing 92 and movable platen 94, make movable platen 94 along connecting rod 93 advance and retreat thus, and make moveable die 12 with respect to fixed mould 11 contacts, separation, and carry out mold closing, matched moulds and die sinking.
And above-mentioned backing-out punch device 55 comprises: be arranged at movable platen 94 rear end face, that freely be provided with respect to movable platen 94 with advancing and retreat, as the slide block 111 of moving-member; As ejecting ejecting with drive division with motor 112; Be provided with respect to above-mentioned slide block 111 with rotating freely, as the ballscrew shaft 113 of the 1st transform component; Be installed on above-mentioned slide block 11 1,113 that screw togather with above-mentioned ballscrew shaft, as the ball nut 114 of the 2nd transform component; Will by drive above-mentioned eject the rotation that produces with motor 112 be delivered to ballscrew shaft 113 tyre type rotation transmission system (by as the driving wheel of driver part, as the driven pulley of slave unit and open a synchronous band that is located between driving wheel and the driven pulley and constitute as drive disk assembly) 116; Not shown ejector lever of advancing and retreat and backing-out punch pin etc. along with the advance and retreat of above-mentioned slide block 111.
Therefore, by driving above-mentioned ejecting with motor 112, the moulding product that can will stay when die sinking in the moveable die 12 eject.In addition, constitute ball-screw 115 by above-mentioned ballscrew shaft 113 and ball nut 114, this ball-screw 115 is transformed into straight-line direction of motion transformation component and works as rotatablely moving.
And above-mentioned mould thickness adjusting device 60 comprises: screw togather with the threaded portion that is formed at each connecting rod 93 rear end, as elbow formula adjustment component and as the adjustment nut 121 of the thick adjustment component of mould; As the adjustment of elbow formula with and as the thick motor 122 of mould of the drive division of the thick adjustment usefulness of mould; As being with 123 etc. synchronously by what drive that rotation that the thick motor 122 of this mould produces is delivered to the drive disk assembly of respectively adjusting nut 121.Therefore, for example exchanging under the situation such as die device 52,, can make elbow cribbing 92 with respect to fixed head 91 advance and retreat and carry out the thick adjustment of mould by driving the thick motor 122 of mould.
In the injection device 51 of said structure, when driving plasticising was moved with motor 77, the rotation that this plasticising is moved with motor 77 was passed to ballscrew shaft 81, and makes ball nut 82 advance and retreat.And the thrust of ball nut 82 is passed to carriage 83 by spring 84, and makes injection device 51 advance and retreat.
And, in measurement process, with motor 66 and by rotation transmission system 65 rotation is delivered to screw shaft 61 when screw rod 57 is rotated when driving metering, not shown resin as the moulding material that is supplied to from hopper 59, in heating cylinder 56, be heated and make its fusion, and forwards moved, accumulate in the place ahead of screw rod 57.Thereupon, screw rod 57 retreats into assigned position.
And, in injection process, injection nozzle 58 by being pressed on the fixed mould 11, and is driven injection motor 69, make ballscrew shaft 73 rotations by rotation transmission system 68.At this moment, load cell 70 moves along with the rotation of ballscrew shaft 73, and screw rod 57 is advanced, so the resin that accumulates in screw rod 57 the place aheads is filled into the void space that is formed between fixed mould 11 and the moveable die 12 from injection nozzle 58 injections.The counter-force of this moment is born by load cell 70, and detected as injection force.
And, in the mold closing mechanism 53 and backing-out punch device 55 of said structure, when driving matched moulds with motor 96, this matched moulds is passed to ball screw axle 101 with the rotation of motor 96 by rotation transmission system 97, and make ball nut 102 advance and retreat, and slide block 99 is also advanced and retreat.And along with advancing of this slide block 99, elbow type mechanism 95 stretches, and before the movable platen 94 and then carry out mold closing, and makes moveable die 12 be connected to fixed mould 11.Then, when further driving matched moulds is used motor 96, in elbow type mechanism 95, produce mold clamping force, be pressed against on the fixed mould 11, between fixed mould 11 and moveable die 12, form void space by this mold clamping force, moveable die 12.And, when along with slide block 99 retreat, make linkage 95 crooked the time, movable platen 94 retreats, and carries out die sinking.
Then, drive and to eject, eject the rotation that produces with motor 112 and be passed to ballscrew shaft 113, slide block 111 is advanced and retreat, and above-mentioned ejector lever is advanced and retreat by rotation transmission system 116 by driving this with motor 112.And, along with the carrying out of die sinking, when driving ejects when with motor 112 slide block 111 being advanced, above-mentioned backing-out punch pin is advanced and eject the moulding product.
In addition, in the mould thickness adjusting device 60 of said structure, when driving the thick motor 122 of mould, the rotation of the thick motor 122 of mould is by being with 123 to be passed to and respectively to adjust nut 121 synchronously, each adjusts nut 121 along with rotation is advanced and retreat with respect to connecting rod 93, and makes elbow cribbing 92 advance and retreat.Its result, mould is thick to be adjusted, and the reference position of elbow type mechanism 95 is adjusted.
Below, above-mentioned injection device 51 is described.
Fig. 2 is the figure of the key component of the injection (mo(u)lding) machine in expression the 1st embodiment of the present invention.
In Fig. 2, the 51st, injection device, the 56th, the heating cylinder, the 57th, rotate freely and be configured in with freely advancing and retreat the screw rod in this heating cylinder 56, the 58th, be installed on the injection nozzle of the front end of above-mentioned heating cylinder 56, the supply port 59 that 214 be formed near the rear end that jet hole 215 on this injection nozzle 58 is formed in above-mentioned heating cylinder 56 assigned position, is used to supply with resin be accommodate above-mentioned resin, by above-mentioned supply port 215 with resin supply in the heating cylinder 56, as the hopper of moulding material feedway.
Backend arrangement at above-mentioned screw rod 57 has metering motor 66, injection motor 69 etc.The screw head 222 that above-mentioned screw rod 57 has threaded portion 221 and is installed in these threaded portion 221 front ends.And above-mentioned threaded portion 221 has the screw thread 223 that helically is formed on the outer peripheral face of screw rod main body, is formed with spiral helicine groove 224 along this screw thread 223.
In addition, on screw rod 57, be formed with: the supply unit of forwards supplying with the resin that falls from hopper 59 from the rear according to priority; The resin that compression is supplied with also makes the compression unit of its fusion; And each metering portion that measures the resin of fusion a certain amount ofly.Make above-mentioned groove 224 the end, be that the external diameter of screw rod main body is less in supply unit, in compression unit, forwards become big gradually from the rear, bigger in metering portion.Therefore, the gap between the inner peripheral surface of heating cylinder 56 and the outer peripheral face of screw rod main body is bigger in above-mentioned supply unit, forwards diminishes gradually from the rear in compression unit, and is less in metering portion.
Dispose die device 52 in the place ahead of above-mentioned injection device 51, this die device 52 by fixed mould 11 and with respect to this fixed mould 11 freely with advancing and retreat the configuration moveable die 12 constitute, by making mold closing mechanism 53 work can carry out mold closing, matched moulds and the die sinking of above-mentioned die device 52, when matched moulds, between fixed mould 11 and moveable die 12, form void space.Thus, above-mentioned mold closing mechanism 53 comprises: the fixed head 91 that is used to install above-mentioned fixed mould 11; Be used to install the movable platen 94 of above-mentioned moveable die 12; Make this movable platen 94 advance and retreat, and produce the matched moulds motor 96 etc. of mold clamping force.
When measurement process, when making above-mentioned screw rod 57 by driving above-mentioned metering when being rotated in the forward with motor 66, the resin in the hopper 59 is fed into supply unit by supply port 215, and it is advanced in groove 224.Thereupon, screw rod 57 is retreated, resin is accumulated in the place ahead of screw head 222.In addition, the resin in the above-mentioned groove 224 has granular shape in above-mentioned supply unit, become the semi-molten state in compression unit, and fusion becomes liquid state fully in metering portion.
When injection process, when when driving above-mentioned injection motor 69 above-mentioned screw rod 57 is advanced, the resin that accumulates in screw head 222 the place aheads is filled in the above-mentioned void space from injection nozzle 58 injections.At this moment, the counter-flow-preventing device that is made of not shown non-return ring and sealing ring is set around screw head 222, so that the resin that accumulates in screw head 222 the place aheads adverse current not.
But, in the periphery of above-mentioned heating cylinder 56, in the axial direction in abutting connection with a plurality of heater h1～h5 of ground configuration, periphery at injection nozzle 58 disposes heater h6～h8,, can heat resin in the above-mentioned heating cylinder 56, make its fusion this heater h1～h8 energising by respectively.
In addition, heating cylinder 56 axially on a plurality of positions of regulation, in the present embodiment, between the middle body of heater h1, heater h2, h3 and between heater h4, the h5, be provided with heater temperature sensor s1～s3 as temperature detecting part.
And this heater temperature sensor s1～s3 detects near the front end of heating cylinder 56, near the temperature of the assigned position central authorities and the rear end, and each detected temperature is delivered to control part 231.The not shown forming temperature controlled processing unit (handling part) of this control part 231 carries out forming temperature control and handles, and controls so that according to the temperature that is detected above-mentioned heater h1～h8 is switched on, and makes the temperature of resin become design temperature.And operating portion 232 and display part 233 are connected to above-mentioned control part 231, can set by 232 pairs of design temperatures of operation aforesaid operations portion.And the not shown display processing unit (handling part) of above-mentioned control part 231 shows processing, and design temperature, temperature of being detected etc. are presented at display part 233.
In addition, in order to control the temperature of die device 52, be provided as mold temperature sensor s11, the s12 of temperature detecting part, this mold temperature sensor s11, s12 detect the temperature of said fixing mould 11 and moveable die 12, and each temperature that is detected is delivered to control part 231.The not shown mold temperature controlled processing unit (handling part) of this control part 231 carries out mold temperature control to be handled, the go forward side by side control of trip temperature adjuster 235, the amount of the water of the temperature control medium that the never illustrated thermosistor of adjustment conduct is supplied with, and supply to die device 52.
But, when the temperature of the heating cylinder 56 of above-mentioned supply port 215 is higher than the fusing point of resin, supplying to the resin fusion immediately of supply unit, can not successfully measure.Therefore, the position that sets around above-mentioned supply port 215, in the present embodiment, forwardly and dispose thermoelectric cooling element 261～264 on rear and supply port 215 adjoining positions.
But, each thermoelectric cooling element 261～264th is made of Poltier module, this Poltier module is that each element of P-type semiconductor with cooling capacity and N-type semiconductor is become in conjunction with being electrically connected in series over the ground and forming by carrying out blocking, when flowing through DC current between each element at two ends, a face of each element becomes cooling surface, and another face becomes heating surface.And, by changing sense of current, it is worked as cooling element, or work as heating element heater.
In the present embodiment, above-mentioned each thermoelectric cooling element 261～264 is worked as cooling element.Thus, above-mentioned cooling surface forms towards the radially inner side of heating cylinder 56, and above-mentioned heating surface forms towards the radial outside of heating cylinder 56, at the radial outside encirclement heating cylinder 56 ground configuration radiator 266 of each thermoelectric cooling element 261～264.This radiator 266 is formed by the high material of heat conductivity, will discharge into the atmosphere from the heat that thermoelectric cooling element 261～264 is emitted.In addition, the heat transmission fan can be set as required on radiator 266.
In addition, assigned position around above-mentioned supply port 215, in the present embodiment, adjoining position at thermoelectric cooling element 264 rears, configuration is as the supply port temperature sensor s13 of temperature detecting part, this supply port temperature sensor s13 detects the temperature around the supply port 215, and the temperature that is detected is delivered to control part 231.The not shown supply port temperature controlled processing unit (handling part) of this control part 231 carries out the control of supply port temperature and handles, and carries out the control of each thermoelectric cooling element 261～264, adjusts supply port 215 temperature on every side.
Therefore, along with being energized, heating cylinder 56, above-mentioned heater h1～h8 is heated, not only can suppress heat and be passed to supply port 215, can also suitable temperature will be maintained around the supply port 215, so the resin that can prevent to supply to supply unit can successfully be measured by fusion immediately.
Promptly, for example, in the time of cool off supply port 215 by the water-cooled cylinder around, because the thermal capacity of the water of circulation is big, so temperature controlled response is low, to this, under the situation of using thermoelectric cooling element 261～264, as long as to thermoelectric cooling element 261～264 energisings, just can begin to cool down immediately, can improve temperature controlled response.Therefore, can shorten the time that the temperature that makes around the supply port 215 reaches proper temperature.
In the present embodiment, each thermoelectric cooling element 261～264 works as cooling element, also can be used as the thermostabilization elements act.At this moment, with the flow direction of electric current is opposite as the situation that the cooling key element works, the cooling surface of each thermoelectric cooling element 261～264 is formed towards the radially inner side of heating cylinder 56 towards radial outside formation, the heating surface of heating cylinder 56.Its result, above-mentioned radiator 266 absorbs the heat in the atmosphere and is delivered to thermoelectric cooling element 261～264, and heating cylinder 56 is heated.
At this moment, owing to can make the temperature stabilization of heating cylinder 56, can make the temperature stabilization around the supply port 215.
But the spacing position of retreating of the screw rod 57 when measurement process finishes produces deviation, when the effective travel change of screw rod 57 and variable change, whenever once measures, the just change of the needed heat of molten resin.In addition, when producing deviation in the cycle of moulding circulation, the needed heat of resin fusion that makes of time per unit also changes.
For example, when variable becomes big or moulding circulation when shortening, it is many that the heat that needs becomes, and the temperature of resin is with regard to step-down.On the contrary, when variable diminishes or moulding circulates when elongated, the heat that needs tails off, and the temperature of resin just uprises.
But, in the present embodiment, by changing the flow direction of electric current, can be corresponding to the change of variable, moulding circulation etc., each thermoelectric cooling element 261～264 is worked as cooling element, or as the thermostabilization elements act, so can make the temperature stabilization of resin.
Therefore, owing to can make the load constant that is applied to screw rod 57,, can also improve the quality of moulding product so not only can improve the injection characteristic.
And, before the running of start injection make-up machine or when beginning, thermoelectric cooling element 261～264 is worked as heating element heater, will be heated to set point of temperature around the supply port 215.Its result can shorten the time that the temperature that makes heating cylinder 56 reaches the beginning temperature of moulding.
In addition, in embodiments of the present invention, use the high material of heat conductivities, but can replace the high material of heat conductivity and use the water-cooled cylinder as radiator 266.At this moment,, not only can come to cool off around the supply port 215 auxiliaryly, can also will be delivered to the water from thermoelectric cooling element 261～264 liberated heats by water by the water-cooled cylinder.And, because the thermal capacity of water is big, so can will be delivered to the water fully from each thermoelectric cooling element 261～264 liberated heat.
Below, the 2nd embodiment of the present invention is described.In addition, for the device with structure identical with the 1st embodiment, give identical label and omit its explanation, the invention effect with same structure is quoted the effect of this embodiment.
Fig. 3 is the figure of the key position of the injection (mo(u)lding) machine in expression the 2nd embodiment of the present invention.
At this moment, as the assigned position around the supply port in the heating cylinder 56 of cylinder parts 215, in the present embodiment, from the place ahead to the rear, on the position of adjacency supply port 215, dispose thermoelectric cooling element 271.This thermoelectric cooling element 271 is configured to tubular, to cover the outer peripheral face at the rear of heating cylinder 56.
But, above-mentioned metering with motor 66 (Fig. 1), injection motor 69, plasticising move with motor 77, matched moulds with motor 96, eject with each motors such as motor 112, the thick motors 122 of mould, any one all produces heat along with driving.Therefore, each motor is provided with not shown drive division register, comes cooling motor by the drive division register.
Below, the drive division register is described.In addition, above-mentioned metering is moved with motor 77, matched moulds motor 96, is given prominence to and use the basic structure of motor 112, the thick motor 122 of mould etc. identical with motor 66, injection motor 69, plasticising, therefore, describes as general motor.
Fig. 4 is the schematic diagram of the drive division register in the 3rd embodiment of the present invention.
In Fig. 4, the 151st, motor, the 152nd, metal framework, this framework 152 have the 1st, the 2nd flange part 153,154 and rotor frame 155.On the 1st, the 2nd flange part 153,154, dispose bearing b1, b2, support output shaft 156 with rotating freely by bearing b1, b2.And, stator 158 is installed on the inner peripheral surface of said stator framework 155, rotor 159 is installed on the outer peripheral face of output shaft 156.
But, in order to control the rotating speed of motor 151, will detect the rotating speed of motor 151, thus, formed rotation efferent 166 in the end of output shaft 156 outstandingly, be provided as the encoder 168 of revolution detector at an end of this rotation efferent 166.
This encoder 168 has: by the not shown detected portion that constitutes of rotary body that is installed on rotation efferent 166; And the not shown test section that sensor output takes place along with the rotation of this detected portion.And this test section is installed on the 2nd flange part 154 by the carriage 171 as the metal holding components of rubber-like.And encoder 168 is surrounded by metal shell 172 and is sealed.In addition, in the present embodiment, use encoder 168, but also can replace encoder 168 and the use resolver as revolution detector.
But, because by electric current supply is come drive motors 151 to coil 162, thus heats produced by coil 162, and along with the rotation generation heat of bearing b1, b2.And when these heat savings were in framework 152, the nominal torque that is produced by drive motors 151 can not increase.Especially, in injection (mo(u)lding) machine, after resin is filled into void space, need apply for a long time when keep-uping pressure, the size that the commentaries on classics during with peak value refuses to compare nominal torque becomes important.At this moment, when with respect to condition of molding, when the nominal torque of injection motor 69 (Fig. 1) was not enough, the temperature of injection motor 69 rose, and can not continue production moulding product.
Therefore, go back equipped with radiator 175,176, this radiator 175,176 is as near the periphery of the outer peripheral face of covering stator framework 155 and the 2nd flange part 154 and have the hot transfer member of jog, and as thermal component.Any one of each radiator 175,176 all has a plurality of fan f.
And when the heat that produces along with the rotation of bearing b2 was put aside in shell 172, the accuracy of detection of rotating speed reduced.And, when motor 151 has brake, make brake in abutting connection with the configuration of encoder 168 ground, but along with making this brake in conjunction with producing heat.At this moment, when the heat that produces along with making this brake combination was put aside in shell 172, the accuracy of detection of rotating speed also reduced.
Therefore, radiator 177,178 is set to the outer peripheral face of cover housing 172 and end.Any one of each radiator 177,178 all has a plurality of fan f.
And, assigned position in the outside of motor 151 is provided with the not shown pressure fan of cooling usefulness, according to the temperature that detects by not shown Temperature Detector, will make above-mentioned pressure fan work and the air that produces by control part 231 (Fig. 2), blow to radiator 175～178.Therefore, the heat in the framework 152 is delivered to radiator 175,176 by framework 152, and is discharged into motor 151 outsides.And the heat in the shell 172 is delivered to radiator 177,178 by shell 172, and is discharged into motor 151 outsides.
But, when the temperature of the air that is blown to above-mentioned each radiator 175～178 is low, can discharge enough heats by radiator 175～178, still when the temperature of air is high, can not discharge enough heats.Therefore, between rotor frame 155 and the radiator 175, between the 2nd flange part 154 and the radiator 176 and between shell 172 and the radiator 177,178 thermoelectric cooling element g is being set, so that irrespectively discharge enough heats with the temperature of air.
But, this each thermoelectric cooling element g is made of Poltier module, this Poltier module is that each element of P-type semiconductor with cooling capacity and N-type semiconductor is become in conjunction with being electrically connected in series over the ground and forming by carrying out blocking, when flowing through DC current between each element at two ends, a face of each element becomes heating surface, and another face becomes cooling surface.And, by changing sense of current, each thermoelectric cooling element g is worked as heating element heater, or work, and can make an above-mentioned face become cooling surface as cooling element, above-mentioned another face becomes heating surface.
In the present embodiment, above-mentioned each thermoelectric cooling element g is worked as cooling element.Thus, the cooling surface of each thermoelectric cooling element g is towards the configuration of the outer peripheral face ground of rotor frame the 155, the 1st, the 2nd flange part 153,154 and shell 172, and cooling rotor frame the 155, the 1st, the 2nd flange part 153,154 and shell 172.Therefore, heat in the framework 152 is passed to radiator 175,176 by rotor frame 155 and the 1st, the 2nd flange part 153,154, and being released to motor 151 outsides, the heat in the shell 172 is passed to radiator 177,178 by shell 172, and is released to motor 151 outsides.In addition, at this moment, the heat that each thermoelectric cooling element g has rotor frame 155 and the 1st, the 2nd flange part 153,154 is delivered to radiator 175,176, the heat of shell 172 is delivered to the function of radiator 177, and constitutes heat transfer element.
But, because any one of carriage 171 and shell 172 all is installed on the 2nd flange part 154, so when the heat of the 2nd flange part 154 can not be released fully by radiator 176, and when being passed to carriage 171 and shell 172, carriage 171 and shell 172 can not be cooled off fully.Its result, the temperature of encoder 168 uprises, so accuracy of detection reduces.
Therefore, configuration thermoelectric cooling element h between the 2nd flange part 154 and carriage 171 and shell 172.This each thermoelectric cooling element h works as cooling element.Thus, the cooling surface of thermoelectric cooling element h is towards the configuration of the outer peripheral face ground of rotor frame 155, thus cooling rotor frame 155.Therefore, the heat that can block the 2nd flange part 154 transmits to carriage 171 and shell 172, and can fully cool off carriage 171 and shell 172, can prevent that therefore the temperature of encoder 168 from raising.Its result can improve the accuracy of detection of encoder 168.In addition, at this moment, each thermoelectric cooling element h has the function of the heat of blocking-up the 2nd flange part 154 to carriage 171 and shell 172 transmission, and constitutes the heat blocking element.
Like this, the heat in the framework 152 can be discharged into motor 151 outsides fully, the nominal torque that produces by drive motors 151 is increased, and the rated capacity of motor 151 is increased.And, can improve the durability of bearing b1, b2.
And, not only do not need to dispose thermosistor, do not need to prevent that temperature control medium from revealing from the circulatory system, so can reduce the cost of drive division register yet.
And, the heat in the shell 172 can be discharged into motor 151 outsides fully, and can intercept heat transmit, so can improve the accuracy of detection of encoder 168 to encoder 168.And, can improve the durability of encoder 168.
And, also can make pressure fan work by above-mentioned control part 231 according to the testing result of said temperature detector, and control thermoelectric cooling element h etc.
In addition, the invention is not restricted to above-mentioned embodiment, can invention spirit according to the present invention carry out various distortion, these distortion are not got rid of from scope of the present invention.
Industrial applicibility
The present invention can be applicable to injection (mo(u)lding) machine.
Claims (11)
1. a make-up machine is characterized in that, comprising:
Be formed with the cylinder parts of supply port at assigned position;
The injection member that in these cylinder parts, freely disposes with advancing and retreat;
Be used to make the metering drive division of this injection member rotation;
The injection drive division that above-mentioned injection member is advanced;
Die device with fixed mould and moveable die;
Carry out the mold closing mechanism of mold closing, matched moulds and the die sinking of this die device;
Be arranged at the matched moulds drive division on this mold closing mechanism;
Be installed on above-mentioned supply port, moulding material supplied to moulding material feedway in the cylinder parts by supply port;
Be arranged at the thermoelectric cooling element of assigned position.
2. an injection device is characterized in that, comprising:
Be formed with the cylinder parts of supply port at assigned position;
The injection member that in these cylinder parts, freely disposes with advancing and retreat;
Be installed on above-mentioned supply port, moulding material supplied to moulding material feedway in the cylinder parts by supply port;
Be arranged at the thermoelectric cooling element of above-mentioned supply port assigned position on every side.
3. injection device according to claim 2 is characterized in that,
Above-mentioned thermoelectric cooling element is configured to, and a face is towards radially inner side, and another face is towards radial outside;
Radial outside at above-mentioned thermoelectric cooling element is provided with radiator.
4. injection device according to claim 2 is characterized in that,
Above-mentioned thermoelectric cooling element works as cooling element.
5. injection device according to claim 2 is characterized in that,
Above-mentioned thermoelectric cooling element is as the thermostabilization elements act.
6. injection device according to claim 2 is characterized in that, also comprises:
Detect the temperature detecting part of above-mentioned supply port environment temperature;
Supply port temperature controlled processing unit carries out the control of thermoelectric cooling element according to said temperature.
7. the temperature-controlled process of an injection device is characterized in that:
The supply port of the assigned position by being formed on the cylinder parts is supplied with moulding material in the cylinder parts;
Adjust above-mentioned supply port temperature on every side by the thermoelectric cooling element that is configured in above-mentioned supply port assigned position on every side.
8. a make-up machine is characterized in that, comprising:
The framework of housing stator and rotor;
The outer peripheral face that covers this framework disposes, has the hot transfer member of jog;
Thermoelectric cooling element, cooling surface are configured between above-mentioned framework and the hot transfer member towards the outer peripheral face of framework.
9. make-up machine according to claim 8 is characterized in that, comprising:
Revolution detector is arranged on an end of output shaft, the rotating speed of detection output shaft;
Surround this revolution detector, be installed in the shell on the above-mentioned framework;
The outer peripheral face that covers this shell disposes, has the hot transfer member of jog;
Thermoelectric cooling element, cooling surface towards the outer peripheral face of framework, be configured between above-mentioned framework and the hot transfer member.
10. make-up machine according to claim 8 is characterized in that,
The detected portion of above-mentioned revolution detector is installed on the above-mentioned framework by holding components.
11. any according to Claim 8～10 described make-up machine is characterized in that, also comprises:
Detect the Temperature Detector of said stator temperature;
Control the control part of above-mentioned thermoelectric cooling element according to the temperature that this Temperature Detector detected.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005001391 | 2005-01-06 | ||
| JP001391/2005 | 2005-01-06 | ||
| JP046969/2005 | 2005-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101098777A true CN101098777A (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800461168A Pending CN101098777A (en) | 2005-01-06 | 2005-12-28 | Molding machine, injection device, and temperature control method for the device |
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| CN (1) | CN101098777A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811352A (en) * | 2009-02-19 | 2010-08-25 | 三菱重工塑胶科技股份有限公司 | Manufacturing method of mold, mold dividing body and the Mold |
| CN103950166A (en) * | 2014-05-26 | 2014-07-30 | 蓝小玲 | Plastic injection molding machine with thermoelectric semiconductor refrigeration |
| CN104943103A (en) * | 2014-03-25 | 2015-09-30 | 住友重机械工业株式会社 | Injection molding machine |
| CN111902251A (en) * | 2018-03-27 | 2020-11-06 | 住友重机械工业株式会社 | Vent clogging detection device, mold system, injection molding system, and vent clogging detection method |
| CN115139481A (en) * | 2021-03-31 | 2022-10-04 | 住友重机械工业株式会社 | Injection molding machine, control device for injection molding machine, and control method for injection molding machine |
-
2005
- 2005-12-28 CN CNA2005800461168A patent/CN101098777A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811352A (en) * | 2009-02-19 | 2010-08-25 | 三菱重工塑胶科技股份有限公司 | Manufacturing method of mold, mold dividing body and the Mold |
| CN104943103A (en) * | 2014-03-25 | 2015-09-30 | 住友重机械工业株式会社 | Injection molding machine |
| CN104943103B (en) * | 2014-03-25 | 2019-03-29 | 住友重机械工业株式会社 | Injection (mo(u)lding) machine |
| CN103950166A (en) * | 2014-05-26 | 2014-07-30 | 蓝小玲 | Plastic injection molding machine with thermoelectric semiconductor refrigeration |
| CN111902251A (en) * | 2018-03-27 | 2020-11-06 | 住友重机械工业株式会社 | Vent clogging detection device, mold system, injection molding system, and vent clogging detection method |
| CN111902251B (en) * | 2018-03-27 | 2022-05-24 | 住友重机械工业株式会社 | Air vent blockage detection device, mold system, injection molding system and air vent blockage detection method |
| CN115139481A (en) * | 2021-03-31 | 2022-10-04 | 住友重机械工业株式会社 | Injection molding machine, control device for injection molding machine, and control method for injection molding machine |
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