CN109605693A - A kind of energy-saving servo hydraulic injection molding machine and its hydraulic control system - Google Patents

Abstract

The invention belongs to injection molding machine field, specifically a kind of energy-saving servo hydraulic injection molding machine and its hydraulic control system, including injection molding barrel, limit switch, servo motor, retarder, heater and telescoping mechanism；It further include cleaning unit and hydraulic cylinder.On the one hand, pass through the mutual cooperation between cleaning unit, heater, permanent magnet, hot-wire coil and hydraulic cylinder, so that the feed powder being adhered on injection molding barrel becomes molten state, the feed powder of molten state is wiped off from injection molding barrel side wall by the cleaning unit of bird-caging again, feed powder is avoided to be deposited on injection molding barrel, to improve the mobility of melting feed powder in injection molding barrel, and then improve the stability of feed powder injection molding work；On the other hand, by the height of hydraulic fluid temperature, the flexible of hydraulic cylinder is controlled, the utilization again to the energy in injection molding is realized, to improve the energy saving of injection molding machine.

Description

A kind of energy-saving servo hydraulic injection molding machine and its hydraulic control system

Technical field

The invention belongs to injection molding machine field, specifically a kind of energy-saving servo hydraulic injection molding machine and its hydraulic control system.

Background technique

Injection molding machine is the maximum processing equipment of usage amount in Plastics Processing Industry, not only has a large amount of product straight with injection molding machine It delivers a child production, but also is the key equipment for forming injection stretch blow moulding.Fused raw material is pushed to by injection molding machine by plunger or screw rod In nozzle, and inject in mold to form plastic.

Domestic injection molding machine is passed through using injection molding machine in the about millions of production and replaces various types of Mold Makings not With the engineering plastic product of purposes.When being molded the product of different colours, common practice is first to be molded the plastics system of light colour Product, after the completion of the amount of a batch, even if remaining the plastic grain of light color in injection molding cylinder, the powder of next batch dark color is poured into Afterwards, so that it may which mixing becomes dark, and then does not need to clean.Although this way can produce to avoid cleaning Cheng Zhong is squeezed out after mixing since the mixed feed powder ratio of feed powder is different, and the degree up to standard of the plastic part color after cooling die sinking is low, There has also been certain changes for intensity.

Also occur a kind of skill of the patent about energy-saving servo hydraulic injection molding machine and its hydraulic control system in the prior art Art scheme, such as application No. is 2015109865976 Chinese patents to disclose a kind of injection molding machine, including injection molding barrel, note It is provided with screw rod in plastic barrel, is provided with external screw thread on screw rod, the bottom for being molded barrel is provided with cleaning plant, cleaning plant Inner ring is provided with internal screw thread, the outer ring of cleaning plant and the inner ring clearance fit of injection molding barrel, is provided with telescoping mechanism on screw rod, When the bottommost of screw rod receding, the screw-internal thread fit of external screw thread and cleaning plant is provided with heating coil in cleaning plant.

A kind of injection molding machine of the technical solution, the feed powder that can be adhered to barrel are cleared up.But in the technical solution, Gap between screw rod is larger, and the feed powder of melting is adhered between the gap of rotating bar, so that screw rod is not easy to clear up；Meanwhile it adhering to Feed powder on injection molding barrel side wall is not easily cleaned, and causes packing phenomenon over time, to influence the stability for being molded work； So that the technical solution is restricted.

Summary of the invention

In order to make up for the deficiencies of the prior art, the excessive feed powder with injection molding barrel side wall adherency of screw clearance is solved to be not easy clearly The problem of reason, a kind of energy-saving servo hydraulic injection molding machine and its hydraulic control system proposed by the present invention.

The technical solution adopted by the present invention to solve the technical problems is: a kind of hydraulic note of energy-saving servo of the present invention Molding machine, including injection molding barrel, limit switch, servo motor, retarder, heater and telescoping mechanism；Further include cleaning unit and Hydraulic cylinder；The injection molding barrel is equipped with feeding cylinder and nozzle, setting rotating bar and hot-wire coil in injection molding barrel；The limit Switch is mounted on injection molding barrel front end, and limit switch is for inverting servo motor；Double wedge is set in the rotating bar；It is described clear The bottom of injection molding barrel is arranged in reason unit, clears up unit inner ring and is equipped with the tooth being meshed with double wedge, is equipped with and adds in cleaning unit Heat coil, the section for clearing up unit is bird-caging, and clears up unit both ends and be provided with permanent magnet；The permanent magnet and hot-wire coil It matches；The inner wall of the injection molding barrel is also in bird-caging；The outer ring of the cleaning unit and the interior ring gap of injection molding barrel are matched It closes；The telescoping mechanism is set to the bottom of rotating bar, and telescoping mechanism includes baffle；The baffle both ends are equipped with guide rod, Baffle hits exactly the narrow contracting portion being equipped in rotating bar；The bottom of the rotating bar is connected with hydraulic cylinder；The telescoping mechanism It is also connected with retarder and servo motor；The hydraulic cylinder includes cap, No.1 shell, No. two shells, No. three shells and swollen Swollen capsule；No. two shells and No. three shells are made of aluminum alloy materials, and aluminum alloy materials accelerate the conduction of heat, No. two shells Body is located at No.1 case inside, and No. two shells are located at No. three hull outsides, and No.1 area is formed between No.1 shell and No. two shells Domain, No. two shells and No. three shells form No. two regions；The cap is connect with No.1 shell, and radiator is equipped in the middle part of cap； The radiator is by pipeline and No.1 regional connectivity, and radiator passes through channel and No. two regional connectivities；No. two shells No.1 disk is arranged on outer ring；No. three enclosure interiors are equipped with No. two disks；No. two disks and No.1 disk are by magnetic Property material is made, and attracts each other between No.1 disk and No. two disks；The swelling bag is located at No. two regions, and swelling bag is pacified by plate On the side wall of No. two shells and No. three shells, the outboard sidewalls section of swelling bag is surrounded by waveform, is set as waveform, Contact area is increased, heat conduction, and the cross sectional shape phase of No. two inner walls and No. three housing exterior walls and swelling bag are accelerated Cooperation, swelling bag inside are equipped with ethyl alcohol, cooperate the flexible of No.1 shell by the expanded by heating of ethyl alcohol.Injection molding machine is plastic processing Most commonly used machinery in industry；Existing injection molding machine is that fused raw material is pushed at nozzle by plunger or rotating bar, and injects Form plastic into mold, but existing injection molding machine Shortcomings, on the one hand, the gap between rotating bar is larger, the original of melting Material is adhered between the gap of rotating bar, so that rotating bar is not easy to clear up；On the other hand, the material being adhered on injection molding barrel side wall Powder is not easily cleaned, and causes packing phenomenon over time, is reduced so as to cause fused raw material mobility in injection molding barrel, and then influence It is molded the stability of work；The present invention is molded barrel by setting, servo motor, retarder, heater, limit switch, stretches Mechanism, cleaning unit and hydraulic cylinder, on the one hand, pass through cleaning unit, heater, permanent magnet, hot-wire coil and hydraulic cylinder Between mutual cooperation so that the feed powder being adhered on injection molding barrel becomes molten state, then will be melted by the cleaning unit of bird-caging The feed powder for melting state is wiped off from injection molding barrel side wall, and feed powder is avoided to be deposited on injection molding barrel, to improve in injection molding barrel The mobility of feed powder is melted, and then improves the stability of feed powder injection molding work；On the other hand, pass through the height of hydraulic fluid temperature It is low, the flexible of hydraulic cylinder is controlled, the utilization again to the energy in injection molding is realized, to improve the energy saving of injection molding machine.

Firstly, feed powder is put into from feeding cylinder in injection molding barrel, the feed powder in injection molding barrel is added to rotation The rotation of bar is fed forward along rotating bar；Meanwhile by the heating of heater and the effect of rotating bar shearing friction heat by Edge up temperature, until fusion plastification is at generating certain pressure after glutinous stream mode；When the pressure of rotation club head reaches and can overcome In hydraulic cylinder No.1 shell retreat resistance when, rotating bar rotation while gradually retreat so that the plastics of molten state from It is injected into mold cavity at nozzle；After the feed powder of same batch is finished, when replacing another mold, when centre has stood one section Between, adhered on the inside of injection molding barrel by powder, it is difficult to clear up, telescoping mechanism is opened at this time, the narrow contracting portion of the rotating bar of telescoping mechanism On be provided with sliding slot, drive hydraulic cylinder at this time；When to hydraulic cylinder convey hydraulic oil when, first pass through radiator to hydraulic oil into Row heat dissipation, and hydraulic oil is transported in No.1 region, extruding of the No.1 disk by hydraulic oil, No.1 disk is to far from cap one Side movement, simultaneously because No.1 disk and No. two disks attract each other, so that No. two disks are moved to far from cap side, No. two The gas generated in disk movement transfers to No.1 shell, and cooperation No.1 shell is moved to far from cap side；Due to entering one The hydraulic fluid temperature in number region is higher, and temperature is transmitted at swelling bag by No. two shells, ethyl alcohol expanded by heating, pushes swelling bag On plate, while the gas that generates blows to radiator in pushing, and additional cooler radiates to hydraulic oil；In hydraulic cylinder Under driving, narrow contracting portion is slided backward, until rotating bar shoulder and injection molding barrel abut against, at this time rotating bar be reduced to finally, There is certain distance to be equipped with double wedge in rotating bar, a distance is without double wedge, the distance and rotation of telescoping mechanism receding after rotating bar Bar double wedge is identical as the cleaning spacing of unit, therefore rotating bar is meshed with cleaning unit；At this point, servo motor is started to work, Rotating bar rotation is driven, the rotating bar of rotation is with after cleaning unit matching, and telescoping mechanism is restored to original state, and rotating bar is just Turn, the rotating bar of rotating forward is matched with the tooth on cleaning unit, since cleaning unit and injection molding barrel inner wall section are in lantern Shape, therefore have resistance between them, cleaning unit will be molded the powder on the inside of barrel, while pushing ahead, while passing through heating coil Heating, so that the feed powder of cooled and solidified is pushed ahead；Limit switch is touched when clearing up unit and reaching the front end of rotating bar, Control servo motor starts to invert, and drives rotating bar reversion, and cleaning unit resets backward, and limit switch controls telescoping mechanism simultaneously Receding, after cleaning unit returns to initial position, the permanent magnet of both ends setting is injection molding the magnetic after the hot-wire coil energization of barrel Power absorption.

Preferably, the diameter of the rotating bar is gradually increased from left to right, convenient for molten state feed powder from rotating bar Right side flows on the left of rotating bar.Existing bar is straight-bar, and the feed powder of molten state is not easy from the right side flow of bar to the left side of bar, from And influence mobility；The present invention is by the way that the diameter of rotating bar to be set as being gradually increased from left to right, in the injection molding of feed powder In the process, so that the feed powder of molten state quickly flows on the left of rotating bar on the right side of rotating bar；Meanwhile in the clear of injection molding barrel side wall In reason, fallen in rotating bar by the molten state feed powder of cleaning unit and double wedge cooperation cleaning, and flow at nozzle, to mention The cleaning efficiency of feed powder at high rotating bar.

Preferably, the double wedge is made of electric heating wire and iron sheet；The iron sheet wraps up electric heating wire, passes through electric heating The heating of silk, so that the temperature of iron sheet increases, the feed powder by cooled and solidified in injection molding barrel becomes molten state.The present invention pass through by Double wedge is made of electric heating wire and iron sheet, by the mutual cooperation between electric heating wire, iron sheet and electrically-heated coil, electric heating wire and electricity The inside and outside cooperation of heating coil is heated, and the feed powder for accelerating cooled and solidified becomes molten state, while in the rotation of rotating bar, iron sheet The feed powder for being adhered to injection molding barrel side wall is scraped, to improve the cleaning efficiency of injection molding barrel.

Preferably, the rotating bar is equipped with auxiliary unit；The feed powder that the auxiliary unit is used to accelerate molten state enters To at nozzle, auxiliary unit includes swing rod, fixed link and No.1 control box；No.1 chamber and one are offered inside the rotating bar Number slot；It is equipped with push plate in the No.1 chamber, mercury is housed on the right side of push plate, push plate sliding is pushed by the expanded by heating of mercury； By No.1 pipeline and No.1 chamber, No.1 controls the box other end and passes through No. two pipelines and one for described No.1 control box one end The connection of number slot is equipped with hydraulic control one-way valve at No. two pipelines, and No.1 control box is for controlling the air pressure that No.1 chamber transfers to No.1 slot Amount；The quantity of the swing rod is two, and two swing rod one end are hinged, and the two swing rod other ends are respectively hinged at the side wall of injection molding barrel On；Described fixed link one end is connected in No.1 slot by spring, and the fixed link other end is hinged on two swing rods.The present invention passes through Auxiliary unit is set, on the one hand, by the swing of swing rod, the feed powder for accelerating molten state is injected into mold cavity from from nozzle, To improve the working efficiency of injection molding machine；On the other hand, by feed powder heat in the heat that generates utilize, reduce additional Power source, to improve the utilization rate of resource.

By the heating of heater and the effect of rotating bar shearing friction heat, so that the temperature at rotating bar increases, at this point, The mercury of the mercury expanded by heating in No.1 chamber on the right side of push plate, expansion pushes push plate to move to far from mercury side, push plate The space in left side becomes smaller, and pressure increases, and the air pressure of increase transfers to No.1 slot, so that fixed link is moved to far from rotating bar side, To push swing rod to swing, the feed powder that the swing rod of swing accelerates molten state is entered at nozzle；When the temperature decreases, mercury Shrink, to move close to mercury side, the space on the left of push plate becomes larger for push plate, and pressure reduces so that fixed link drive swing rod to It is moved close to rotating bar side；By expanding with heat and contract with cold for mercury repeatability, the swing of swing rod is controlled, to realize the material of molten state Powder is injected into mold cavity from from nozzle.

Preferably, the channel diameter size of the nozzle is gradually increased from left to right, and nozzle inner walls are equipped with No. two slots；It is described No.1 plate is equipped in No. two slots, No.1 plate is connected on No. two slots by spring；No.1 channel is offered on the injection molding barrel, No.1 channel is equipped with No. two control boxes, and No.1 channel end is connected to No. two slots, generates hot gas when by injection molding barrel heating, leads to No.1 channel is crossed to be delivered at No.1 slot, so that No.1 plate moves, meanwhile, the movement width that box controls No.1 plate is controlled by No. two Degree.The present invention is equipped with No.1 plate by the way that the channel diameter of nozzle to be set as being gradually increased from left to right, so that more meltings The feed powder of state converges at nozzle, and by the movement of control No.1 plate, more molten state feed powders are injected into from nozzle In mold cavity, to improve the working efficiency of injection molding machine.

When the swing by swing rod, when so that the feed powder of more molten states being converged at nozzle, at this point, barrel will be molded Thermogenetic hot gas is added to transfer to No.1 plate, under the action of hot gas, No.1 plate is moved to far from No. two slot sides, and No.1 plate squeezes The feed powder of molten state；When stopping conveying hot gas to No.1 plate, No.1 plate resets under the action of the spring；Made by control hot gas For No.1 plate, so that No.1 plate squeezes the feed powder of molten state, the feed powder for accelerating molten state is injected into mold cavity.

Preferably, the feeding cylinder is divided into interior barrel and outer barrel；The interior barrel is made of aluminum alloy materials, interior barrel Channel is formed between outer barrel, which is connected to No.1 channel, will generate hot gas when by that will be molded barrel heating and transfers to interior material Tin, the feed powder in internal barrel is preheated.The present invention is by setting interior barrel and outer barrel for feeding cylinder, by by hot gas Transfer to interior barrel, since interior barrel is made of aluminum alloy materials so that conveying hot gas act on and feed powder in so that feed powder into Row preheating accelerates feed powder and becomes the efficiency of molten state, to improve the working efficiency of injection molding machine.

A kind of hydraulic control system of energy-saving servo hydraulic injection molding machine, including control unit, control unit is for controlling injection molding machine Operation, it is characterised in that: further include hydraulic control unit, the hydraulic control unit include No.1 control valve, No. two control valves, No. three control Valve and hydraulic control one-way valve processed, No.1 control valve, No. two control valves, No. three control valves and hydraulic control one-way valve connect with control unit It connects, No.1 control valve provides power for controlling hydraulic cylinder work, hydraulic oil pump for hydraulic cylinder, and hydraulic cylinder is for controlling The translation of rotating bar in the horizontal direction；No. two control valves are used to control the work of No.1 control box, and No.1 controls box control one Number chamber transfers to the amount of gas pressure of No.1 slot；No. three control valves are used to control the work of No. two control boxes, and No. two control boxes are for controlling System melting discharge rate of the feed powder from nozzle；Hydraulically-controlled one-way valve is mounted at No.1 control box, and hydraulically-controlled one-way valve is for controlling No.1 The single-direction transmission of amount of gas pressure at chamber.

Beneficial effects of the present invention are as follows:

1. a kind of energy-saving servo hydraulic injection molding machine of the present invention and its hydraulic control system, on the one hand, pass through cleaning unit, heating Mutual cooperation between device, permanent magnet, hot-wire coil and hydraulic cylinder, so that the feed powder being adhered on injection molding barrel becomes to melt State, then wiped the feed powder of molten state off from injection molding barrel side wall by the cleaning unit of bird-caging, avoid feed powder from being deposited in note On plastic barrel, to improve the mobility of melting feed powder in injection molding barrel, and then the stability of feed powder injection molding work is improved； On the other hand, by the height of hydraulic fluid temperature, the flexible of hydraulic cylinder is controlled, realizes the utilization again to the energy in injection molding, To improve the energy saving of injection molding machine.

2. a kind of energy-saving servo hydraulic injection molding machine of the present invention and its hydraulic control system, by by double wedge by electric heating wire It is formed with iron sheet, by the mutual cooperation between electric heating wire, iron sheet and electrically-heated coil, the interior external coordination of electric heating wire and Electrothermal ring It heats, the feed powder for accelerating cooled and solidified becomes molten state, while in the rotation of rotating bar, iron sheet will be adhered to injection molding material The feed powder of cylinder side wall scrapes, to improve the cleaning efficiency of injection molding barrel.

3. a kind of energy-saving servo hydraulic injection molding machine of the present invention and its hydraulic control system, by being arranged auxiliary unit, one Aspect, by the swing of swing rod, the feed powder for accelerating molten state is injected into mold cavity from from nozzle, to improve injection molding machine Working efficiency；On the other hand, by feed powder heat in the heat that generates utilize, additional power source is reduced, to improve The utilization rate of resource.

Detailed description of the invention

The present invention will be further explained below with reference to the attached drawings.

Fig. 1 is main view of the invention；

Fig. 2 is the cross-sectional view of hydraulic cylinder original state；

Fig. 3 is the cross-sectional view of hydraulic cylinder extended state；

Fig. 4 is the cross-sectional view of A-A in Fig. 2；

Fig. 5 is the structural schematic diagram for clearing up unit；

Fig. 6 is the partial enlarged view in Fig. 1 at B；

Fig. 7 is the partial enlarged view in Fig. 1 at C；

In figure: injection molding barrel 1, limit switch 11, servo motor 12, retarder 13, heater 14, No.1 channel 15, telescopic machine Structure 2, baffle 21, guide rod 22, narrow contracting portion 23, cleaning unit 3, permanent magnet 31, hydraulic cylinder 4, cap 41, radiator 411, one Number shell 42, the region 422, two of No.1 region 421, two shell 43, the disk of shell 44, two of No.1 disk 431, three 441, swelling bag 45, feeding cylinder 5, interior barrel 51, outer barrel 52,6, No. two slots 61 of nozzle, 62, No. two control boxes 63 of No.1 plate, Rotating bar 7, No.1 chamber 71, No.1 slot 72, push plate 73, double wedge 8, electric heating wire 81, iron sheet 82, auxiliary unit 9, swing rod 91, Fixed link 92, No.1 control box 93.

Specific embodiment

In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below Specific embodiment is closed, the present invention is further explained.

As shown in Figures 1 to 7, a kind of energy-saving servo hydraulic injection molding machine of the present invention, including injection molding barrel 1, limit Switch 11, servo motor 12, retarder 13, heater 14 and telescoping mechanism 2；It further include cleaning unit 3 and hydraulic cylinder 4；Institute It states injection molding barrel 1 and is equipped with feeding cylinder 5 and nozzle 6, setting rotating bar 7 and hot-wire coil in injection molding barrel 1；The limit switch 11 It is mounted on injection molding 1 front end of barrel, limit switch 11 is for inverting servo motor 12；Double wedge 8 is set in the rotating bar 7；Institute The bottom that injection molding barrel 1 is arranged in cleaning unit 3 is stated, cleaning 3 inner ring of unit is equipped with the tooth being meshed with double wedge 8, clears up unit 3 Interior to be equipped with heating coil, the section of cleaning unit 3 is bird-caging, and clears up 3 both ends of unit and be provided with permanent magnet 31；The permanent magnetism Body 31 is matched with hot-wire coil；The inner wall of the injection molding barrel 1 is also in bird-caging；The outer ring of the cleaning unit 3 and injection molding The inner ring clearance fit of barrel 1；The telescoping mechanism 2 is set to the bottom of rotating bar 7, and telescoping mechanism 2 includes baffle 21；It is described 21 both ends of baffle are equipped with guide rod 22, and baffle 21 hits exactly the narrow contracting portion 23 being equipped in rotating bar 7；The rotating bar 7 Bottom is connected with hydraulic cylinder 4；The telescoping mechanism 2 is also connected with retarder 13 and servo motor 12；The hydraulic cylinder 4 wraps Include cap 41, the shell 44 of shell 43, three of No.1 shell 42, two and swelling bag 45；No. two shells 43 and No. three shells 44 are made of aluminum alloy materials, and aluminum alloy materials accelerate the conduction of heat, and No. two shells 43 are located at 42 inside of No.1 shell, and No. two shells 43 are located at 44 outside of No. three shells, and No.1 region 421, No. two shells are formed between No.1 shell 42 and No. two shells 43 43 and No. three shells 44 form No. two regions 422；The cap 41 is connect with No.1 shell 42, and radiator is equipped in the middle part of cap 41 411；The radiator 411 is connected to by pipeline with No.1 region 421, and radiator 411 is connected by channel and No. two regions 422 It is logical；No. two shells are arranged with No.1 disk 431 on 43 outer ring；No. two disks 441 are equipped with inside No. three shells 44；Institute It states No. two disks 441 and No.1 disk 431 is made of magnetic material, attract each other between No.1 disk 431 and No. two disks 441； The swelling bag 45 is located at No. two regions 422, and swelling bag 45 is mounted on the side wall of No. two shells 43 and No. three shells 44 by plate On, the outboard sidewalls section of swelling bag 45 is surrounded by waveform, is set as waveform, increases contact area, is accelerated heat and is passed It leads, and No. two 43 inner walls of shell and No. three 44 outer walls of shell are matched with the cross sectional shape of swelling bag 45, are set inside swelling bag 45 There is ethyl alcohol, the flexible of No.1 shell 42 is cooperated by the expanded by heating of ethyl alcohol.Injection molding machine is most commonly used in Plastics Processing Industry It is mechanical；Existing injection molding machine is fused raw material to be pushed at nozzle 6 by plunger or rotating bar 7, and be injected into mold and formed Plastic, but existing injection molding machine Shortcomings, on the one hand, the gap between rotating bar 7 is larger, and the raw material of melting is adhered to rotation Between the gap of bar 7, so that rotating bar 7 is not easy to clear up；On the other hand, the feed powder being adhered on injection molding 1 side wall of barrel is not easy clearly Reason, causes packing phenomenon over time, reduces so as to cause fused raw material mobility in injection molding barrel 1, and then influence injection molding work The stability of work；The present invention is molded barrel 1 by setting, servo motor 12, retarder 13, heater 14, limit switch 11, stretches Contracting mechanism 2, cleaning unit 3 and hydraulic cylinder 4, on the one hand, by cleaning unit 3, heater 14, permanent magnet, hot-wire coil and Mutual cooperation between hydraulic cylinder 4 so that the feed powder being adhered on injection molding barrel 1 becomes molten state, then passes through the clear of bird-caging Reason unit 3 wipes the feed powder of molten state off from injection molding 1 side wall of barrel, avoids feed powder from being deposited on injection molding barrel 1, to improve The mobility of melting feed powder in injection molding barrel 1, and then improve the stability of feed powder injection molding work；On the other hand, pass through liquid The height of pressure oil temperature, flexible, again utilization of the realization to the energy in injection molding, to improve injection molding of control hydraulic cylinder 4 The energy saving of machine.

Firstly, feed powder is put into from feeding cylinder 5 injection molding barrel 1 in, be added to injection molding barrel 1 in feed powder with turn The rotation of lever 7 is fed forward along rotating bar 7；Meanwhile passing through the work of the heating of heater 14 and rotating bar 7 shearing friction heat With and be gradually warmed up, until fusion plastification is at generating certain pressure after glutinous stream mode；When the pressure on 7 head of rotating bar reaches energy It when enough overcoming the resistance that No.1 shell 42 retreats in hydraulic cylinder 4, is gradually retreated while rotating bar 7 rotates, so that melting The plastics of state are injected into mold cavity from nozzle 6；It is intermediate when replacing another mold after the feed powder of same batch is finished A period of time is stood, 1 inside of injection molding barrel is adhered to by powder, it is difficult to clear up, telescoping mechanism 2 is opened at this time, telescoping mechanism 2 It is provided with sliding slot in the narrow contracting portion 23 of rotating bar 7, drives hydraulic cylinder 4 at this time；When conveying hydraulic oil to hydraulic cylinder 4, first It is radiated by radiator 411 to hydraulic oil, and hydraulic oil is transported in No.1 region 421, No.1 disk 431 is by hydraulic The extruding of oil, No.1 disk 431 are moved to far from 41 side of cap, simultaneously because No.1 disk 431 and No. two disks 441 are mutual Attract, so that No. two disks 441 are moved to far from 41 side of cap, the gas generated in No. two movements of disk 441 transfers to No.1 Shell 42, cooperation No.1 shell 42 are moved to far from 41 side of cap；Due to enter the hydraulic fluid temperature in No.1 region 421 compared with Height, temperature are transmitted at swelling bag 45 by No. two shells 43, and ethyl alcohol expanded by heating pushes the plate on swelling bag 45, pushes away simultaneously The gas generated in dynamic blows to radiator 411, and additional cooler 411 radiates to hydraulic oil；In the driving of hydraulic cylinder 4 Under, narrow contracting portion 23 slides backward, until rotating bar 7 shoulder and injection molding barrel 1 abut against, at this time rotating bar 7 be reduced to finally, There is certain distance to be equipped with double wedge 8 in rotating bar 7, after rotating bar 7 a distance without double wedge 8, the distance of 2 receding of telescoping mechanism and 7 double wedge 8 of rotating bar is identical as the cleaning spacing of unit 3, therefore rotating bar 7 is meshed with cleaning unit 3；At this point, servo motor 12 start to work, and rotating bar 7 is driven to rotate, and after the rotating bar 7 and cleaning unit 3 of rotation cooperate, telescoping mechanism 2 is restored to originally State, rotating bar 7 rotates forward, and the rotating bar 7 of rotating forward is matched with the tooth on cleaning unit 3, due to clearing up unit 3 and injection molding material 1 inner wall section of cylinder is in bird-caging, therefore has resistance between them, and cleaning unit 3 will be molded the powder of 1 inside of barrel, Bian Xiang It is pushed forward into side is by heating coils heat, so that the feed powder of cooled and solidified is pushed ahead；When cleaning unit 3 reaches rotating bar 7 Limit switch 11 is touched when front end, control servo motor 12 starts to invert, and rotating bar 7 is driven to invert, and cleaning unit 3 is backward It resetting, limit switch 11 controls 2 receding of telescoping mechanism simultaneously, after cleaning unit 3 returns to initial position, the permanent magnetism of both ends setting Body 31 is injection molding the magnetic-adsorption after the hot-wire coil energization of barrel 1.

As one embodiment of the present invention, the diameter of the rotating bar 7 is gradually increased from left to right, convenient for molten The feed powder for melting state flows to 7 left side of rotating bar on the right side of rotating bar 7.Existing bar is straight-bar, and the feed powder of molten state is not easy from bar Right side flow is to the left side of bar, to influence mobility；The present invention is by setting the diameter of rotating bar 7 to from left to right It is gradually increased, in the injection moulding process of feed powder, so that the feed powder of molten state quickly flows to 7 left side of rotating bar on the right side of rotating bar 7； Meanwhile in the cleaning of injection molding 1 side wall of barrel, rotation is fallen on by the molten state feed powder of cleaning unit 3 and the cooperation cleaning of double wedge 8 It on bar 7, and flow at nozzle 6, to improve the cleaning efficiency of feed powder at rotating bar 7.

As one embodiment of the present invention, the double wedge 8 is made of electric heating wire 81 and iron sheet 82；The iron sheet 82 Electric heating wire 81 is wrapped up, by the heating of electric heating wire 81, so that the temperature of iron sheet 82 increases, by cooled and solidified in injection molding material The feed powder of cylinder 1 becomes molten state.The present invention by the way that double wedge 8 is made of electric heating wire 81 and iron sheet 82, by electric heating wire 81, The inside and outside cooperation of mutual cooperation between iron sheet 82 and electrically-heated coil, electric heating wire 81 and Electrothermal ring is heated, and is accelerated cooling solidifying Solid feed powder become molten state, while in the rotation of rotating bar 7, iron sheet 82 scrapes the feed powder for being adhered to injection molding 1 side wall of barrel Under, to improve the cleaning efficiency of injection molding barrel 1.

As one embodiment of the present invention, the rotating bar 7 is equipped with auxiliary unit 9；The auxiliary unit 9 is used for The feed powder for accelerating molten state enters at nozzle 6, and auxiliary unit 9 includes that swing rod 91, fixed link 92 and No.1 control box 93；It is described No.1 chamber 71 and No.1 slot 72 are offered inside rotating bar 7；It is equipped with push plate 73 in the No.1 chamber 71, is filled on the right side of push plate 73 There is mercury, pushes push plate 73 to slide by the expanded by heating of mercury；The No.1 control 93 one end of box passes through No.1 pipeline and one Number chamber 71 is connected to, and No.1 control 93 other end of box is connected to by No. two pipelines with No.1 slot 72, equipped with hydraulic control at No. two pipelines Check valve, No.1 control box 93 is for controlling the amount of gas pressure that No.1 chamber 71 transfers to No.1 slot 72；The quantity of the swing rod 91 is Two, two swing rods, 91 one end is hinged, and two swing rods, 91 other end is respectively hinged on the side wall of injection molding barrel 1；The fixed link 92 one end are connected in No.1 slot 72 by spring, and 92 other end of fixed link is hinged on two swing rods 91.The present invention passes through setting Auxiliary unit 9, on the one hand, by the swing of swing rod 91, the feed powder for accelerating molten state is injected into mold cavity from nozzle 6, To improve the working efficiency of injection molding machine；On the other hand, by feed powder heat in the heat that generates utilize, reduce additional Power source, to improve the utilization rate of resource.

By the heating of heater 14 and the effect of rotating bar 7 shearing friction heat, so that the temperature at rotating bar 7 increases, At this point, the mercury expanded by heating in the No.1 chamber 71 on 73 right side of push plate, the mercury of expansion push push plate 73 to far from mercury one The space of side movement, the left side of push plate 73 becomes smaller, and pressure increases, and the air pressure of increase transfers to No.1 slot 72, so that fixed link 92 is to remote It is moved from 7 side of rotating bar, so that swing rod 91 be pushed to swing, the feed powder that the swing rod 91 of swing accelerates molten state enters spray At mouth 6；When the temperature decreases, mercury is shunk, and push plate 73 is moved to close to mercury side, and the space in 73 left side of push plate becomes larger, and is pressed It is strong to reduce, so that fixed link 92 drives swing rod 91 to move to close to 7 side of rotating bar；It expands with heat and contract with cold by the way that mercury is repeated, The swing for controlling swing rod 91, to realize that the feed powder of molten state is injected into mold cavity from nozzle 6.

As one embodiment of the present invention, the channel diameter size of the nozzle 6 is gradually increased from left to right, nozzle 6 inner walls are equipped with No. two slots 61；No.1 plate 62 is equipped in No. two slots 61, No.1 plate 62 is connected in No. two slots 61 by spring On；No.1 channel 15 is offered on the injection molding barrel 1, No.1 channel 15 is equipped with No. two control boxes 63,15 end of No.1 channel Portion is connected to No. two slots 61, is generated hot gas when injection molding barrel 1 is heated, is delivered at No.1 slot 72, is made by No.1 channel 15 No.1 plate 62 is obtained to move, meanwhile, pass through No. two and controls the motion amplitudes that boxes 63 control No.1 plate 62.The present invention is by by nozzle 6 Channel diameter be set as being gradually increased from left to right, and No.1 plate 62 is equipped with, so that the feed powder of more molten state converges to spray At mouth 6, and by the movement of control No.1 plate 62, more molten state feed powders are injected into mold cavity from nozzle 6, from And improve the working efficiency of injection molding machine.

When the swing for passing through swing rod 91, when so that the feed powder of more molten states being converged at nozzle 6, at this point, will injection molding Barrel 1 plus thermogenetic hot gas transfer to No.1 plate 62, and under the action of hot gas, No.1 plate 62 is transported to far from No. two 61 sides of slot It is dynamic, the feed powder of 62 extrusion molten state of No.1 plate；When stopping conveying hot gas to No.1 plate 62, No.1 plate 62 is under the action of the spring It resets；No.1 plate 62 is acted on by controlling hot gas, so that No.1 plate 62 squeezes the feed powder of molten state, accelerates molten state Feed powder be injected into mold cavity.

As one embodiment of the present invention, the feeding cylinder 5 divides for interior barrel 51 and outer barrel 52；The interior barrel 51 are made of aluminum alloy materials, form channel between interior barrel 51 and outer barrel 52, which is connected to No.1 channel 15, pass through by Injection molding barrel 1 generates hot gas when heating and transfers to interior barrel 51, and the feed powder in internal barrel 51 is preheated.The present invention is by will be into Barrel 5 is set as interior barrel 51 and outer barrel 52, by the way that hot gas is transferred to interior barrel 51, since interior barrel 51 is by aluminum alloy materials It is made, so that the hot gas of conveying is acted on feed powder, so that feed powder is preheated, accelerates the efficiency that feed powder becomes molten state, To improve the working efficiency of injection molding machine.

A kind of hydraulic control system of energy-saving servo hydraulic injection molding machine, including control unit, control unit is for controlling injection molding machine Operation, it is characterised in that: further include hydraulic control unit, the hydraulic control unit include No.1 control valve, No. two control valves, No. three control Valve and hydraulic control one-way valve processed, No.1 control valve, No. two control valves, No. three control valves and hydraulic control one-way valve connect with control unit It connects, No.1 control valve is that hydraulic cylinder 4 provides power for controlling the work of hydraulic cylinder 4, hydraulic oil pump, and hydraulic cylinder 4 is used for Control the translation of rotating bar 7 in the horizontal direction；No. two control valves are used to control the work of No.1 control box 93, and No.1 controls box 93 control No.1 chambers 71 transfer to the amount of gas pressure of No.1 slot 72；No. three control valves are used to control No. two work for controlling box 63, and two Number control box 63 for control melt discharge rate of the feed powder from nozzle 6；Hydraulically-controlled one-way valve is mounted at No.1 control box 93, hydraulic Check valve is used to control the single-direction transmission of amount of gas pressure at No.1 chamber 71.

When work, firstly, feed powder is put into from feeding cylinder 5 injection molding barrel 1 in, during the addition process, feed powder into Preheated at barrel 5, be added to after preheating injection molding barrel 1 in feed powder with the rotation of rotating bar 7 along rotating bar 7 forward Conveying；Meanwhile being gradually warmed up by the heating of heater 14 and the effect of rotating bar 7 shearing friction heat, until fusion plastification At generating certain pressure after glutinous stream mode；No.1 shell in hydraulic cylinder 4 can be overcome when the pressure on 7 head of rotating bar reaches When the resistance of 42 retrogressings, gradually retreated while rotating bar 7 rotates, so that the plastics of molten state are injected into mould from nozzle 6 Tool type is intracavitary；After the feed powder of same batch is finished, when replacing another mold, centre has stood a period of time, is molded in barrel 1 Side is adhered to by powder, it is difficult to clear up, telescoping mechanism 2 is opened at this time, is provided in the narrow contracting portion 23 of the rotating bar 7 of telescoping mechanism 2 Sliding slot drives hydraulic cylinder 4 at this time；When conveying hydraulic oil to hydraulic cylinder 4, first passes through radiator 411 and hydraulic oil is carried out Heat dissipation, and hydraulic oil is transported in No.1 region 421, extruding of the No.1 disk 431 by hydraulic oil, and No.1 disk 431 is to remote 41 side of shrinking away from theshell lid movement, simultaneously because No.1 disk 431 and No. two disks 441 attract each other, so that No. two disks 441 are to remote The movement of 41 side of shrinking away from theshell lid, the gas generated in the movement of No. two disks 441 transfer to No.1 shell 42, and cooperation No.1 shell 42 is to remote The movement of 41 side of shrinking away from theshell lid；Since the hydraulic fluid temperature for entering No.1 region 421 is higher, temperature is transmitted by No. two shells 43 To at swelling bag 45, ethyl alcohol expanded by heating pushes the plate on swelling bag 45, while the gas generated in promotion blows to radiator 411, additional cooler 411 radiates to hydraulic oil；Under the driving of hydraulic cylinder 4, narrow contracting portion 23 is slided backward, Zhi Daozhuan The shoulder of lever 7 abuts against with injection molding barrel 1, and rotating bar 7 is reduced to finally, there is certain distance equipped with convex in rotating bar 7 at this time Tooth 8, a distance is without double wedge 8, the distance and 7 double wedge 8 of rotating bar and cleaning unit 3 of 2 receding of telescoping mechanism after rotating bar 7 Spacing is identical, therefore rotating bar 7 is meshed with cleaning unit 3；At this point, servo motor 12 is started to work, rotating bar 7 is driven to revolve Turn, after the rotating bar 7 and cleaning unit 3 of rotation cooperate, telescoping mechanism 2 is restored to original state, and rotating bar 7 rotates forward, and rotates forward Rotating bar 7 with cleaning unit 3 on tooth match, due to cleaning unit 3 and injection molding 1 inner wall section of barrel be in bird-caging, Therefore there is resistance between them, under the action of heating coil and electric heating wire 81, so that the feed powder of cooled and solidified becomes to melt State, cleaning unit 3 push ahead the powder of molten state；Limit is touched when clearing up unit 3 and reaching the front end of rotating bar 7 Switch 11, control servo motor 12 start to invert, and rotating bar 7 is driven to invert, and cleaning unit 3 resets backward, and limit switch 11 is same When control 2 receding of telescoping mechanism, cleaning unit 3 return to initial position after, both ends setting permanent magnet 31 be injection molding barrel 1 Magnetic-adsorption after hot-wire coil energization.

Above-mentioned front, back, left, right, up, down is mark according to personage's observation visual angle on the basis of Fig. 1 in Figure of description Standard, device surface are defined as a left side on the left of observer to before being defined as on one side of observer, and so on.

In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as protecting the present invention The limitation of range.

Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution Mind and range.Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, It shall fall within the protection scope of the present invention.

Claims (7)

1. a kind of energy-saving servo hydraulic injection molding machine, including injection molding barrel (1), limit switch (11), servo motor (12), retarder (13), heater (14) and telescoping mechanism (2)；It is characterized by also including cleaning unit (3) and hydraulic cylinders (4)；The note Plastic barrel (1) is equipped with feeding cylinder (5) and nozzle (6), setting rotating bar (7) and hot-wire coil in injection molding barrel (1)；The limit Switch (11) is mounted on injection molding barrel (1) front end, and limit switch (11) is for inverting servo motor (12)；The rotating bar (7) double wedge (8) are set on；It is described cleaning unit (3) setting injection molding barrel (1) bottom, cleaning unit (3) inner ring be equipped with The tooth that double wedge (8) is meshed, cleaning unit (3) is interior to be equipped with heating coil, and the section of cleaning unit (3) is bird-caging, and is cleared up Unit (3) both ends are provided with permanent magnet (31)；The permanent magnet (31) matches with hot-wire coil；Injection molding barrel (1) Inner wall is also in bird-caging；The outer ring of cleaning unit (3) and the inner ring clearance fit of injection molding barrel (1)；The telescoping mechanism (2) it is set to the bottom of rotating bar (7), telescoping mechanism (2) includes baffle (21)；Baffle (21) both ends are equipped with guide rod (22), baffle (21) hits exactly the narrow contracting portion (23) being equipped on rotating bar (7)；The bottom of the rotating bar (7) is connected with liquid Air cylinder (4)；The telescoping mechanism (2) is also connected with retarder (13) and servo motor (12)；The hydraulic cylinder (4) includes Cap (41), No.1 shell (42), No. two shells (43), No. three shells (44) and swelling bag (45)；No. two shells (43) It is made with No. three shells (44) of aluminum alloy materials, No. two shells (43) are located on the inside of No.1 shell (42), and No. two shells (43) it is located on the outside of No. three shells (44), forms No.1 region (421) between No.1 shell (42) and No. two shells (43), No. two shells Body (43) forms No. two regions (422) with No. three shells (44)；The cap (41) connect with No.1 shell (42), cap (41) Middle part is equipped with radiator (411)；The radiator (411) is connected to by pipeline with No.1 region (421), and radiator (411) It is connected to by channel with No. two regions (422)；No.1 disk (431) are arranged on No. two shells (43) outer ring；Described three No. two disks (441) are equipped with inside number shell (44)；No. two disks (441) and No.1 disk (431) are by magnetic material system At attracting each other between No.1 disk (431) and No. two disks (441)；The swelling bag (45) is located at No. two regions (422), swollen Swollen capsule (45) is mounted on the side wall of No. two shells (43) and No. three shells (44) by plate, and the outboard sidewalls of swelling bag (45) are cut Face is surrounded by waveform, and No. two shell (43) inner walls and No. three shell (44) outer walls and the cross sectional shape of swelling bag (45) match It closes, ethyl alcohol is equipped with inside swelling bag (45), the flexible of No.1 shell (42) is cooperated by the expanded by heating of ethyl alcohol.

2. a kind of energy-saving servo hydraulic injection molding machine according to claim 1, it is characterised in that: the rotating bar (7) it is straight Diameter size is gradually increased from left to right, is flowed on the left of rotating bar (7) on the right side of rotating bar (7) convenient for the feed powder of molten state.

3. a kind of energy-saving servo hydraulic injection molding machine according to claim 1, it is characterised in that: double wedge (8) You electricity Jia Heated filament (81) and iron sheet (82) composition；The iron sheet (82) wraps up electric heating wire (81), by the heating of electric heating wire (81), So that the temperature of iron sheet (82) increases, the feed powder by cooled and solidified in injection molding barrel (1) becomes molten state.

4. a kind of energy-saving servo hydraulic injection molding machine according to claim 1, it is characterised in that: set on the rotating bar (7) There are auxiliary unit (9)；The feed powder that the auxiliary unit (9) is used to accelerate molten state enters at nozzle (6), auxiliary unit (9) Box (93) are controlled including swing rod (91), fixed link (92) and No.1；Offered inside the rotating bar (7) No.1 chamber (71) and No.1 slot (72)；Push plate (73) are equipped in the No.1 chamber (71), mercury is housed on the right side of push plate (73), pass through the heated of mercury Expand against push plate (73) sliding；Described No.1 control box (93) one end is connected to by No.1 pipeline with No.1 chamber (71), and one Number control box (93) other end is connected to by No. two pipelines with No.1 slot (72), equipped with hydraulic control one-way valve, No.1 at No. two pipelines Control box (93) is for controlling the amount of gas pressure that No.1 chamber (71) transfers to No.1 slot (72)；The quantity of the swing rod (91) is two, Two swing rods (91) one end is hinged, and two swing rods (91) other end is respectively hinged on the side wall of injection molding barrel (1)；The fixation Bar (92) one end is connected in No.1 slot (72) by spring, and fixed link (92) other end is hinged on two swing rods (91).

5. a kind of energy-saving servo hydraulic injection molding machine according to claim 1, it is characterised in that: the channel of the nozzle (6) Diameter is gradually increased from left to right, and nozzle (6) inner wall is equipped with No. two slots (61)；No.1 plate is equipped in No. two slots (61) (62), No.1 plate (62) is connected on No. two slots (61) by spring；No.1 channel is offered on the injection molding barrel (1) (15), No.1 channel (15) are equipped with No. two control boxes (63), and No.1 channel (15) end is connected to No. two slots (61), will be molded Barrel (1) generates hot gas when heating, and is delivered at No.1 slot (72) by No.1 channel (15), so that No.1 plate (62) moves, Meanwhile the motion amplitude of box (63) control No.1 plate (62) is controlled by No. two.

6. a kind of energy-saving servo hydraulic injection molding machine according to claim 1, it is characterised in that: the feeding cylinder (5) is divided into Interior barrel (51) and outer barrel (52)；The interior barrel (51) is made of aluminum alloy materials, interior barrel (51) and outer barrel (52) Between form channel, which is connected to No.1 channel (15), by will be molded barrel (1) heating when generate hot gas transfer to interior barrel (51), the feed powder in internal barrel (51) is preheated.

7. a kind of hydraulic control system of energy-saving servo hydraulic injection molding machine, it is characterised in that: the system is used for such as claim 1 to 6 institute Any one hydraulic injection molding machine stated, the system include control unit and hydraulic control unit, and control unit is for controlling injection molding machine Operation, the hydraulic control unit include No.1 control valve, No. two control valves, No. three control valves and hydraulic control one-way valve, No.1 control Valve, No. two control valves, No. three control valves and hydraulic control one-way valve are connect with control unit, and No.1 control valve is for controlling hydraulic air Cylinder (4) work, hydraulic oil pump are that hydraulic cylinder (4) provide power, and hydraulic cylinder (4) is for controlling rotating bar (7) in level side Upward translation；No. two control valves are used to control the work of No.1 control box (93), and No.1 controls box (93) and controls No.1 chamber (71) amount of gas pressure of No.1 slot (72) is transferred to；No. three control valves are used to control the work of No. two controls box (63), No. two control boxes (63) for controlling melting discharge rate of the feed powder from nozzle (6)；Hydraulically-controlled one-way valve is mounted at No.1 control box (93), hydraulic list It is used to control the single-direction transmission of amount of gas pressure at No.1 chamber (71) to valve.