CN205705007U - A kind of vacuum charging equipment of injection machine - Google Patents

Abstract

This utility model provides the vacuum charging equipment of a kind of injection machine, belongs to injection machine technical field.The vacuum charging equipment of this injection machine includes: rubber melting cylinder, for injection raw material and be provided with the injection screw for rotating feeding, is provided with airtight melten gel space in described rubber melting cylinder, and described melten gel space has the feeding mouth sent into for raw material；Pumped vacuum systems, is connected with feeding mouth, and described pumped vacuum systems is for detaching rubber melting cylinder by the gas produced due to raw material heating in rubber melting cylinder.The vacuum charging equipment of this injection machine has reasonable in design, the advantage of reliable operation.

Description

A kind of vacuum charging equipment of injection machine

Technical field

This utility model belongs to injection machine technical field, relates to the vacuum charging equipment of a kind of injection machine.

Background technology

At present, the competition of plastic processing industry is more and more fierce, converted products require more and more higher, but product due to The characteristic of raw material is different, can go out the various problems such as jaundice, water wave, affect product quality in injection molding process.

Existing injection machine has employing melten gel charging (feeding) equipment, and the design of its structure is simple, works unreliable, it is impossible to improve ground Solve the problem such as jaundice, water wave during injection, affect end product quality.

In sum, in order to solve above-mentioned injection molding technical problem, need to design a kind of reasonable in design, reliable operation The charging (feeding) equipment of injection machine.

Summary of the invention

The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that a kind of reasonable in design, work The vacuum charging equipment of injection machine reliably.

The purpose of this utility model can be realized by following technical proposal: the vacuum charging equipment of a kind of injection machine, bag Include:

Rubber melting cylinder, for injection raw material and be provided with the injection screw for rotating feeding, is provided with airtight in described rubber melting cylinder Melten gel space, described melten gel space have for raw material send into feeding mouth；

Pumped vacuum systems, is connected with feeding mouth, and described pumped vacuum systems is for producing due to raw material heating in rubber melting cylinder Raw gas detaches rubber melting cylinder.

As further improvement of the utility model, described injection screw horizontal axis is inserted in rubber melting cylinder, and injection The outer wall of screw rod is close to rubber melting cylinder inwall.

Further improving as of the present utility model, described feeding mouth is vertically located at above rubber melting cylinder position, institute rearward State feeding mouth and be positioned at this feeding entrance top near the feeding entry position of injection screw and feeding mouth.

As further improvement of the utility model, it is provided with melten gel at rubber melting cylinder back-end sealing and seals lid, described injection spiral shell Bar seals lid through melten gel.

As another improvement of the present utility model, being arranged over charging system at rubber melting cylinder, described charging system includes The feed cylinder being arranged on rubber melting cylinder, described feed cylinder has the charging aperture for receiving the raw material that the external world sends here, for by former Material is discharged into the discharging opening of feeding mouth, and described pumped vacuum systems includes vacuum pump, is provided with to go out for UNICOM on the barrel of feed cylinder Material mouth and the vacuum port of vacuum pump.

As further improvement of the utility model, described charging system includes feeding spiro rod, described feeding spiro rod level In being axially inserted in feed cylinder and for rotating feeding, described feeding spiro rod is parallel with injection screw, and the outer wall of feeding spiro rod Being close to feed cylinder inwall, the rotating speed of described feeding spiro rod is arranged by presetting ratio with the rotating speed of injection screw.

As further improvement of the utility model, described discharging opening is placed in below feed cylinder and is positioned at feed cylinder front end, Described discharging opening is positioned at below the feeding outlet of feeding spiro rod, after described charging aperture is placed in above feed cylinder and is positioned at discharging opening Side, described charging aperture is positioned at this feeding entrance top near the feeding entry position of feeding spiro rod and charging aperture.

Further improve as of the present utility model, be detachably provided with below feed cylinder front end and between colloidal sol cylinder Coldplate, described discharging opening is vertically to be opened in the through hole in the middle part of coldplate, and described charging aperture is vertically opened in the middle part of feed cylinder Top.

Further improve as of the present utility model, in the middle part of feed cylinder above hopper keyset is detachably installed, Described charging aperture is to be opened in the through hole in the middle part of hopper keyset.

As further improvement of the utility model, described feeding spiro rod is rotatably installed on feeding by two bearings In cylinder, described bearing holder (housing, cover) is located in the middle part of feeding spiro rod position rearward.

Further improving as of the present utility model, be arranged with spacer sleeve on feeding spiro rod, described spacer sleeve is tight It is installed between two bearings.

As another improvement of the present utility model, in feed cylinder rear end, motor cabinet is detachably installed, on motor cabinet Being provided with the motor for driving feeding spiro rod to rotate, described motor cabinet outer wall, motor outer wall, feed cylinder rear end outer wall are the neatest Flat.

As further improvement of the utility model, described feeding spiro rod rear end is connected with motor by shaft coupling, described Shaft coupling is positioned at motor cabinet.

As of the present utility model another improve, feed cylinder front end dead ahead be inserted with feeding seal lid, described in give Material seals cover and stretches in discharging opening, and described vacuum port is arranged in feeding and seals in the middle part of lid.

As of the present utility model another improve, be detachably provided with above feed cylinder front end expect clearly lid, described clearly Material lid and discharging opening UNICOM.

As another improvement of the present utility model, it is arranged above vacuum hopper, described vacuum material bucket at feed cylinder Have the charge door for receiving the raw material that the external world sends here, for raw material being discharged into the discharge port of charging aperture, described vacuum hopper Lower end is provided with negative pressure cavity and above-mentioned discharge port is the outlet of negative pressure cavity, and described vacuum hopper forms negative pressure by negative pressure cavity and then incites somebody to action Raw material sucks and unloads to the charging aperture of feed cylinder.

As further improvement of the utility model, described vacuum hopper is in being vertically arranged, and sets in vacuum hopper side Having at least one flashboard assembly, the entrance of negative pressure cavity can be closed by described flashboard assembly action so that vacuum hopper is from top to bottom It is divided into storage chamber and above-mentioned negative pressure cavity.

Further improving as of the present utility model, described flashboard assembly is set to two, and described flashboard assembly includes Flashboard that level is inserted on vacuum hopper and the cylinder being connected with flashboard, described cylinder action can drive corresponding flashboard level Above-mentioned negative pressure cavity is opened or closed to displacement also, described vacuum hopper by two flashboards be from top to bottom divided into the first storage chamber, Two storage chamber and above-mentioned negative pressure cavity.

Further improve as of the present utility model, be additionally provided with installing plate in vacuum hopper side, two equal water of cylinder Safety is loaded on installing plate and two cylinders be arranged in parallel, is provided with shock-damping structure at cylinder with corresponding flashboard junction.

Further improve as of the present utility model, vacuum hopper is movably installed with the activity that can close charge door Lid, is additionally provided with the full induction apparatus of the first material, the full induction apparatus of the second material in the side of the remotely mounted plate of vacuum hopper, and described first material is full Induction apparatus and the first storage chamber are connected and are electrically connected with removable cover, and the full induction apparatus of described second material is connected with negative pressure cavity and difference With two cylinder electrical connections.

Based on technique scheme, this utility model embodiment at least can produce following technique effect: overall structure sets Rationally, the feeding of rubber melting cylinder uses screw rod to rotate feeding to meter, transmits steadily；Airtight melting it is formed with in the rubber melting cylinder of injection machine Glue space (being also that raw material adds heat space) so that raw material adds thermogenetic gas and is difficult to diffusion, and this utility model is at rubber melting cylinder base Having added pumped vacuum systems on plinth, during work, pumped vacuum systems action also will produce due to raw material heating in plastic melting barrel of injection molding machine Gas take away in rubber melting cylinder, can effectively solve the problem such as jaundice, water wave during injection, overall vacuum charging (feeding) equipment works can Lean on.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail, wherein:

Fig. 1 is the structural representation of this utility model one preferred embodiment.

Fig. 2 is the structural representation in this utility model one preferred embodiment at rubber melting cylinder.

Fig. 3 is the structural representation in this utility model one preferred embodiment at feed cylinder.

Fig. 4 is the structural representation in this utility model one preferred embodiment at vacuum hopper.

In figure, 11, rubber melting cylinder；111, feeding mouth；112, nozzle；12, injection screw；13, melten gel seals lid；21, trachea； 31, feed cylinder；311, charging aperture；312, discharging opening；313, vacuum port；32, feeding spiro rod；33, coldplate；34, hopper switching Plate；351, bearing；352, spacer sleeve；361, motor cabinet；362, motor；363, shaft coupling；37, feeding seals lid；38, expect clearly Lid；41, vacuum hopper；411, charge door；412, discharge port；413, negative pressure cavity；414, the first storage chamber；415, the second storage Chamber；42, flashboard；43, cylinder；44, installing plate.

Detailed description of the invention

The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further Description, but this utility model is not limited to these embodiments.

This utility model protects the vacuum charging equipment of a kind of injection machine, and it is on the basis of injection machine melten gel charging (feeding) equipment Specifically developed a kind of accurate charging (feeding) equipment of melten gel vacuum.

Existing injection machine has employing melten gel charging (feeding) equipment, and the design of its structure is simple, works unreliable, it is impossible to improve ground Solve the problem such as jaundice, water wave during injection, affect end product quality.Therefore, the vacuum designing the rational injection machine of a kind of comparison adds Material equipment is necessary.

The technical scheme provided this utility model below in conjunction with Fig. 1 to Fig. 4 illustrates in more detail.

As shown in Figures 1 to 4, the vacuum charging equipment of this injection machine includes:

Rubber melting cylinder 11, for injection raw material and be provided with the injection screw 12 for rotating feeding, is provided with close in rubber melting cylinder 11 The melten gel space closed, melten gel space has the feeding mouth 111 sent into for raw material；

Pumped vacuum systems, is connected with feeding mouth 111, and pumped vacuum systems is for producing due to raw material heating in rubber melting cylinder 11 Raw gas detaches rubber melting cylinder 11.

In this utility model, the injection molding operation of injection machine is realized by rubber melting cylinder 11, and it has the nozzle for injection 112, above-mentioned injection screw 12 sends nozzle 112 to for the raw material sent here in the external world, transmits steadily, and injection molding operation is reliable.

At work, when causing being molded, generation jaundice, the one of which reason of water wave are owing to raw material is at melten gel to injection machine Cylinder 11 is heated and produces gas, and this gas is placed in above-mentioned melten gel space.

In an initial condition, overall construction design is reasonable, and the feeding of rubber melting cylinder 11 is adopted for the vacuum charging equipment of this injection machine Rotate feeding with screw rod, transmit steadily；Being formed with airtight melten gel space in the rubber melting cylinder 11 of injection machine (is also raw material heating Space) so that raw material adds thermogenetic gas and is difficult to diffusion, and this utility model having added on the basis of rubber melting cylinder 11 is taken out true Do-nothing system, during work, pumped vacuum systems action also will add thermogenetic gas from melten gel due to raw material in plastic melting barrel of injection molding machine 11 Take away in cylinder 11, can effectively solve the problem such as jaundice, water wave, overall vacuum charging (feeding) equipment reliable operation during injection.

Further, for ensureing the reliability of raw material transmission, preferably injection screw 12 horizontal axis is inserted in rubber melting cylinder 11 In, and the outer wall of injection screw 12 is close to rubber melting cylinder 11 inwall, it is ensured that the sealing within rubber melting cylinder 11 so that raw material will not Overflow from side.

Preferably, for making the charging of rubber melting cylinder 11, feeding work relatively reliable, it is ensured that transmission efficiency and stationarity, keep away Exempt from blocking phenomenon to produce, this case arranges feeding mouth 111 is above and position rearward, injection screw 12 is set and is positioned at middle position Put, and feeding mouth 111 is vertical with injection screw 12；Concrete, feeding mouth 111 is vertically located at above rubber melting cylinder 11 position rearward, Feeding mouth 111 is positioned at this feeding entrance top near the feeding entry position of injection screw 12 and feeding mouth 111.

Preferably, being provided with melten gel at rubber melting cylinder 11 back-end sealing and seal lid 13, injection screw 12 seals lid 13 through melten gel, This melten gel seals lid 13 can be by structures such as sealing rings by rubber melting cylinder 11 back-end sealing, it is ensured that the sealing in above-mentioned melten gel space.

As the preferred or optional embodiment of one, being arranged over charging system at rubber melting cylinder 11, charging system includes The feed cylinder 31 being arranged on rubber melting cylinder 11, feed cylinder 31 have the charging aperture 311 for receiving the raw material that the external world sends here, for Raw material is discharged into the discharging opening 312 of feeding mouth 111, and pumped vacuum systems includes vacuum pump (not shown), at feed cylinder 31 Barrel is provided with the vacuum port 313 for UNICOM's discharging opening 312 and vacuum pump, and vacuum port 313 can pass through trachea 21 and vacuum pump Being connected, the vacuum port 313 on vacuum pump, trachea 21 and feed cylinder 31 constitutes the pumped vacuum systems in this utility model.

In this utility model, the topology layout of feed cylinder 31 coordinates with pumped vacuum systems closely, it is ensured that raw material transmission Stationarity and the reliability of evacuation.Concrete, in rubber melting cylinder 11, raw material adds thermogenetic gas and easily converges at feeding mouth 111 and discharging opening 312 position above it, in this case, pumped vacuum systems topology layout is compact, and its vacuum port 313 is placed in feeding Cylinder 31 on and with discharging opening 312 UNICOM so that raw material adds thermogenetic gas and can fully be detached, it is ensured that send out during injection The reliability of the Resolving probiems such as Huang, water wave.

Further, charging system includes that feeding spiro rod 32, feeding spiro rod 32 horizontal axis are inserted in feed cylinder 31 also For rotating feeding, feeding spiro rod 32 is parallel with injection screw 12, and the outer wall of feeding spiro rod 32 is close to feed cylinder 31 inwall, The rotating speed of feeding spiro rod 32 is arranged by presetting ratio with the rotating speed of injection screw 12.

In this utility model, the feeding of rubber melting cylinder 11 and feed cylinder 31 all uses screw rod to rotate feeding, transmits steadily；And For the most more improving problems such as solving injection jaundice, water wave, this utility model sets out from another point of view, uses feeding spiro rod The screw rod (i.e. injection screw 12) of 32 rotating speeds and injection machine, by the feeding of presetting ratio, can affect the speed of feedstock, time, stream The factors such as amount, the raw material entered in rubber melting cylinder 11 is fully heated, injection stable working, smooth and easy, effectively solves jaundice, water during injection The problems such as stricture of vagina, it is ensured that the reliability of charging system work.

For making work relatively reliable, taking into full account the length of each screw rod, diameter, pitch, rotating speed, distance and melten gel On the basis of the factors such as the heating-up temperature of cylinder 11, the composition of raw material, granular size, it is ensured that feeding spiro rod 32 and injection screw 12 connect Compactness, effectively solve during injection the problems such as jaundice, water wave, above-mentioned feeding spiro rod 32 rotating speed and injection screw be set further The presetting ratio of 12 rotating speeds is more than or equal to 0.5, and is less than 1.

Further, for ensureing stationarity and the reliability of raw material transmission of two screw rod docking, above-mentioned two is also coordinated The setting of the presetting ratio of rotating speed of screw rod, in above-mentioned feeding spiro rod 32 horizontal axis is inserted in feed cylinder 31 and with injection screw 12 Parallel, the outer wall of feeding spiro rod 32 is close to feed cylinder 31 inwall, it is ensured that the sealing within feed cylinder 31 so that raw material will not Overflow from side.

For making the charging of feed cylinder 31, feeding, discharging work relatively reliable, it is ensured that transmission efficiency and stationarity, it is to avoid Blocking phenomenon produces, above-mentioned charging aperture 311 in this case, discharging opening 312, feed cylinder 31, feeding spiro rod 32 locus tight Coordinate, discharging opening 312 is set and is positioned at lower section and forward position, arrange that charging aperture 311 is above and position rearward, feeding is set Screw rod 32 is positioned at medium position；Concrete, discharging opening 312 is placed in below feed cylinder 31 and is positioned at feed cylinder 31 front end, discharging opening 312 are positioned at below the feeding outlet of feeding spiro rod 32, after charging aperture 311 is placed in above feed cylinder 31 and is positioned at discharging opening 312 Side, charging aperture 311 is positioned at this feeding entrance top near the feeding entry position of feeding spiro rod 32 and charging aperture 311.

Preferably, for making discharging opening 312 layout of feed cylinder 31 more reasonable, and with feeding spiro rod 32, charging aperture 311 Coordinating more tight, be detachably provided with coldplate 33 below feed cylinder 31 front end and between colloidal sol cylinder, discharging opening 312 is perpendicular Heading straight for being located at the through hole in the middle part of coldplate 33, this through hole upper end also has sending locally through feed cylinder 31 and feeding spiro rod 32 in fact Material outlet docking, this through hole lower end also has in fact docks with the feeding entrance of injection screw 12 locally through rubber melting cylinder 11, charging Mouth 311 is vertically opened in top in the middle part of feed cylinder 31, i.e. charging aperture 311, discharging opening 312 is vertical with feeding spiro rod 32 respectively, goes out Material mouth 312 is vertical with injection screw 12, and the charging aperture 311 and the discharging opening 312 that are vertically arranged are easy to entering under Gravitative Loads One step blanking, it is ensured that the efficiency of transmission.

, it should be added that: coldplate 33 also has the effect installing pedestal as feed cylinder 31, it is used for herein Feed cylinder 31 is loaded on rubber melting cylinder 11 barrel, supports steadily so that feed cylinder 31 and rubber melting cylinder 11 connect reliably, and in feeding During material is had cooling effect, it is ensured that the reliability of work.

It is further preferred that be to make charging aperture 311 layout of feed cylinder 31 more reasonable, and with feeding spiro rod 32, go out Material mouth 312 coordinates closely, in the middle part of feed cylinder 31 above hopper keyset 34 is detachably installed, hopper keyset 34 be used for The parts docking such as the hopper of extraneous transferring raw material, charging aperture 311 is to be opened in the through hole in the middle part of hopper keyset 34, this through hole its Also have in fact and dock with the feeding entrance of feeding spiro rod 32 locally through feed cylinder 31.

For making frock reliable, it is ensured that the stationarity of transmission, it is to avoid axial float, it is preferable that feeding spiro rod 32 is by two Individual bearing 351 is rotatably installed in feed cylinder 31, and bearing 351 is set in the middle part of feeding spiro rod 32 position rearward.

Further, for ensureing the reliability of feeding spiro rod 32 frock, feeding spiro rod 32 is arranged with spacer sleeve 352, Spacer sleeve 352 close installation is between two bearings 351.

As the preferred or optional embodiment of one, for making feeding spiro rod 32 stable drive, in feed cylinder 31 rear end Motor cabinet 361 is detachably installed, motor cabinet 361 is provided with the motor 362 for driving feeding spiro rod 32 to rotate, motor Seat 361 outer walls, motor 362 outer wall, feed cylinder 31 rear end outer wall are substantially flush, and such topology layout makes overall charging system Compact in design, it is simple to frock, and feeding spiro rod 32 stable drive, reliable operation.

In this utility model, for making feeding spiro rod 32 and motor 362 dock reliably, it is ensured that it is steady that power transmits Property, feeding spiro rod 32 rear end is connected with motor 362 (i.e. the power output shaft of motor 362) by shaft coupling 363, this shaft coupling 363 are positioned at motor cabinet 361, and the setting of motor cabinet 361 is applied not only to install motor 362, also acts as dust-tight, protective effect.

As it appears from the above, this case uses evacuation and arranges the rotating speed of feeding spiro rod 32 and melten gel screw rod by presetting ratio row The mode of cloth, produces the problems such as jaundice, water wave when overcoming injection, but is the reliable of easy to detect and further safeguard work Property, as improving further, it is ensured that the sealing within feed cylinder 31, and for convenience of periodically investigating or more quickly discharging discharging The gas piled up at mouth 312, is inserted with feeding at feed cylinder 31 front end dead ahead and seals lid 37, and feeding seals lid 37 parts and stretches into In discharging opening 312, above-mentioned vacuum port 313 is arranged in feeding and seals in the middle part of lid 37, and during use, vacuum pump works and passes through to be located at Feeding seals the vacuum port 313 in the middle part of lid 37 and draws off the gas of inside.

Preferably, for convenience of follow-up cleaning raw material, also for more quickly deriving the gas piled up, in feed cylinder 31 front end Top is detachably provided with clear material lid 38, clear material lid 38 and discharging opening 312 UNICOM.

As the preferred or optional embodiment of one, for making extraneous feeding raw material relatively reliable, convenient control flow, Being arranged above vacuum hopper 41 at feed cylinder 31, vacuum hopper 41 has the charge door for receiving the raw material that the external world sends here 411, for raw material is discharged into the discharge port 412 of charging aperture 311, the lower end of vacuum hopper 41 is provided with negative pressure cavity 413 and above-mentioned unloads Material mouth 412 be the outlet of negative pressure cavity 413, vacuum hopper 41 pass through negative pressure cavity 413 form negative pressure so that raw material is sucked and unloads to The charging aperture 311 of feed cylinder 31.

During work, the negative pressure cavity 413 of vacuum hopper 41 is opened, and it forms negative pressure and then by extraneous raw material negative suction chamber Raw material in 413, and final negative pressure cavity 413 is discharged in the charging aperture 311 of feed cylinder 31, by the feeding manner of negative-pressure adsorption, Can be with the transferring raw material of higher efficiency.

In order to make, vacuum hopper 41 feeding work is reliable, raw material blanking is smooth and easy, it is preferable that vacuum hopper 41 is in vertically setting Putting, and be provided with at least one flashboard assembly in vacuum hopper 41 side, the entrance of negative pressure cavity 413 can be sealed by flashboard assembly action Close so that vacuum hopper 41 is from top to bottom divided into storage chamber and above-mentioned negative pressure cavity 413.

Flashboard assembly close negative pressure cavity 413 entrance after, define above negative pressure cavity 413 one for show storage former The storage chamber of material, after negative pressure cavity 413 is opened, under suction function, raw material is admitted to feed cylinder 31, work efficiency is high, controls Convenient；And the charge door 411 of vacuum hopper 41 normally opened can also arrange similar switch and realize opening and closing action.

Preferably, more quick for making negative pressure cavity 413 open, vacuum hopper work is relatively reliable, flashboard group in this case Part is set to two, and flashboard assembly includes the flashboard 42 that level is inserted on vacuum hopper 41 and the cylinder being connected with flashboard 42 43, cylinder 43 action can drive corresponding flashboard 42 horizontal displacement and open or close above-mentioned negative pressure cavity 413, and vacuum hopper 41 is by two Individual flashboard 42 is from top to bottom divided into the first storage chamber the 414, second storage chamber 415 and above-mentioned negative pressure cavity 413.

In this utility model, why use the topology layout of two flashboards 42, be in order to avoid single flashboard 42 sets When putting, the pressure of outer bound pair negative pressure cavity 413 is too big and causes flashboard 42 situation of smooth opening to occur；It is being provided with two After flashboard 42, flashboard 42 above contacts with ambient atmosphere, and flashboard 42 below contacts with negative pressure cavity 413, between each chamber Pressure difference is not too large, and flashboard 42 is opened light, steady；Time to be fed, raw material enters vacuum hopper 41 from charge door 411, and two Individual cylinder 43 works successively, and two flashboards 42 detach vacuum hopper 41 successively, raw material i.e. from vacuum hopper 41 top down to bottom And enter in feed cylinder 31.

It is further preferred that for making cylinder 43 drive flashboard 42 stable working, reliable, also set in vacuum hopper 41 side Having an installing plate 44, two cylinders 43 are all horizontally installed on installing plate 44 and two cylinders 43 be arranged in parallel, at cylinder 43 with right Flashboard 42 junction is answered to be provided with shock-damping structure, it is ensured that flashboard 42 moves strong and steady.

Further, for convenience of the raw material in storage chamber and negative pressure cavity 413 too much or not enough time control vacuum hopper 41 Charging and discharging, vacuum hopper 41 is movably installed with the removable cover that can close charge door 411, vacuum hopper 41 away from The side of installing plate 44 is additionally provided with the full induction apparatus of the first material, the full induction apparatus of the second material, the full induction apparatus of the first material and the first storage chamber 414 are connected and are electrically connected with removable cover, and the full induction apparatus of the second material is connected with negative pressure cavity 413 and electric with two cylinders 43 respectively Connect.

When the full induction apparatus of the first material senses that the raw material of the first storage chamber 414 (storage chamber i.e. connected with the external world) is too much Time, control removable cover and close charge door 411, temporarily cease extraneous feed；When vacuum hopper 41 gives feed cylinder 31 feeding, second The full induction apparatus of material senses when the raw material in negative pressure cavity 413 is too much, controls two cylinders 43 and drives the flashboard 42 of correspondence temporarily to stop Only storage chamber feed, it is ensured that the reliability that raw material transmits, it is to avoid blocking.

Specific embodiment described herein is only to this utility model spirit explanation for example.This utility model institute Belong to those skilled in the art described specific embodiment to make various amendment or supplement or use similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (10)

1. the vacuum charging equipment of an injection machine, it is characterised in that: including:

Rubber melting cylinder, for injection raw material and be provided with the injection screw for rotating feeding, is provided with airtight molten in described rubber melting cylinder Glue space, described melten gel space has the feeding mouth sent into for raw material；

Pumped vacuum systems, is connected with feeding mouth, and described pumped vacuum systems is for producing due to raw material heating in rubber melting cylinder Gas detaches rubber melting cylinder.

The vacuum charging equipment of a kind of injection machine the most according to claim 1, it is characterised in that: described injection screw level Axially it is inserted in rubber melting cylinder, and the outer wall of injection screw is close to rubber melting cylinder inwall.

The vacuum charging equipment of a kind of injection machine the most according to claim 2, it is characterised in that: described feeding mouth vertically sets Position rearward above rubber melting cylinder, described feeding mouth is positioned at this feeding near the feeding entry position of injection screw and feeding mouth and enters Above Kou.

4. according to the vacuum charging equipment of a kind of injection machine described in Claims 2 or 3, it is characterised in that: above rubber melting cylinder Being provided with charging system, described charging system includes the feed cylinder being arranged on rubber melting cylinder, and described feed cylinder has outside receiving The charging aperture of the raw material that boundary sends here, for raw material being discharged into the discharging opening of feeding mouth, described pumped vacuum systems includes vacuum pump, The barrel of feed cylinder is provided with the vacuum port for UNICOM's discharging opening and vacuum pump.

The vacuum charging equipment of a kind of injection machine the most according to claim 4, it is characterised in that: described charging system includes Feeding spiro rod, in described feeding spiro rod horizontal axis is inserted in feed cylinder and for rotating feeding, described feeding spiro rod and injection Screw rod is parallel, and the outer wall of feeding spiro rod is close to feed cylinder inwall, the rotating speed of described feeding spiro rod and the rotating speed of injection screw By presetting than arranging.

The vacuum charging equipment of a kind of injection machine the most according to claim 4, it is characterised in that: described discharging opening is placed in and send Below barrel and be positioned at feed cylinder front end, described discharging opening is positioned at below the feeding outlet of feeding spiro rod, and described charging aperture is placed in Above feed cylinder and be positioned at discharging opening rear, described charging aperture is positioned at this near the feeding entry position of feeding spiro rod and charging aperture Feeding entrance top.

The vacuum charging equipment of a kind of injection machine the most according to claim 6, it is characterised in that: below feed cylinder front end And coldplate is detachably installed between colloidal sol cylinder, described discharging opening is vertically to be opened in the through hole in the middle part of coldplate, described in enter Material mouth is vertically opened in top in the middle part of feed cylinder.

The vacuum charging equipment of a kind of injection machine the most according to claim 4, it is characterised in that: installed above at feed cylinder Vacuum hopper, described vacuum hopper is had to have the charge door for receiving the raw material that the external world sends here, for raw material is discharged into charging The discharge port of mouth, the lower end of described vacuum hopper is provided with negative pressure cavity and above-mentioned discharge port is the outlet of negative pressure cavity, described vacuum material Struggle against and form negative pressure by negative pressure cavity and then raw material sucked and unloads to the charging aperture of feed cylinder.

The vacuum charging equipment of a kind of injection machine the most according to claim 8, it is characterised in that: described vacuum hopper is in perpendicular Straight setting, and at least one flashboard assembly it is provided with in vacuum hopper side, described flashboard assembly action can be by the entrance of negative pressure cavity Close so that vacuum hopper is from top to bottom divided into storage chamber and above-mentioned negative pressure cavity.

The vacuum charging equipment of a kind of injection machine the most according to claim 9, it is characterised in that: described flashboard assembly sets Being set to two, described flashboard assembly includes the flashboard that level is inserted on vacuum hopper and the cylinder being connected with flashboard, described Cylinder action can drive corresponding flashboard horizontal displacement and open or close above-mentioned negative pressure cavity, described vacuum hopper by two flashboards by It is divided into down the first storage chamber, the second storage chamber and above-mentioned negative pressure cavity.