CN201342786Y - Extruding machine with replaceable center bolt - Google Patents
Extruding machine with replaceable center bolt Download PDFInfo
- Publication number
- CN201342786Y CN201342786Y CNU2009200677134U CN200920067713U CN201342786Y CN 201342786 Y CN201342786 Y CN 201342786Y CN U2009200677134 U CNU2009200677134 U CN U2009200677134U CN 200920067713 U CN200920067713 U CN 200920067713U CN 201342786 Y CN201342786 Y CN 201342786Y
- Authority
- CN
- China
- Prior art keywords
- extruder
- engagement
- central shaft
- module
- planetary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/435—Sub-screws
- B29C48/44—Planetary screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to an extruding machine with a replaceable center bolt, in particular to an extruding machine with a replaceable center bolt adopting a combined center shaft. The extruding machine at least comprises a planet screw module comprising the center shaft, a rotary planet shaft and an inner gearing housing. The extruding machine is characterized in that the center shaft of the planet screw module comprises a sleeve-shaped component or an annular component; engaging teeth which are engaged in an involute toothing manner are formed outside the center shaft; and the center shaft is inserted into the rotary planet shaft in the involute toothing manner. The extruding machine with a replaceable center bolt solves the problem that the center shaft of the extruding machine comprising the planet screw module is damaged and hard to maintain, and makes up the disadvantage in the prior that the cost consumption is large.
Description
Technical field
The utility model relates to a kind of extruder of changeable type center bolt, particularly relates to a kind of extruder that adopts the changeable type center bolt of combined type central shaft.
Background technology
Extruder is used more in plastic processing.Wherein, plastics adopt the form of particle usually, plasticate and export in an extrusion die by extruder, and the plastics after extrusion die makes and plasticates become required shape.Except plasticating, the task of extruder also comprises solution is stirred evenly.In most cases, additive and additive must be through processing.This also can carry out in extruder.In this case, extruder needs uniform distribution additive and additive.Extruder also can be used for food service industry and chemical industry.
Extruder has different structures.The most frequently used have single screw extrusion machine, double screw extruder and a Planetary Screw Extruder.Single screw extrusion machine has a screw rod unique, that rotate in a shell.Screw rod is pressed into extrusion die with solution.The other end at extruder has transmission device and a bearing, the axial force of bearing the screw rod duration of work usually.Every extruder can comprise different procedure of processings.Comprising as feed zone, the district that plasticates, dispersion area or stirring area, cooling zone and discharge zone.According to the difference of processing district, the design of screw rod is also different.Different designs can be represented by the difference of screw channel gradient and the variation of screw channel further feature.Screw channel also has engagement.A kind of up-to-date form of screw rod has designed some independently screw members, and is middle with holes, has a stress bolt to penetrate, and each member is offseted each other.Stress bolt is generally threaded rod.This form can be carried out best selection to screw member, also can change each member, to adapt to corresponding needs.Double screw extruder is made up of two screw rods that are engaged with each other.Comprising the double screw extruder of the screw rod that has equidirectional rotation and the double screw extruder that has the screw rod of opposite spin.Usually screw rod is with a common transmission device.In addition, each screw rod all can be designed to the same with single screw rod.Planetary Screw Extruder has been compared great plastication with other extruder, makes it like this to process the raw material that other extruder can't use or can only use reluctantly at all.But Planetary Screw Extruder also can be used for significantly improving production capacity.Planetary Screw Extruder has the central shaft of a rotation, and engagement and rotary planet axis mesh with an internal tooth in the shell around it simultaneously like this.Shell on every side has a double shells in recent design.Axle bush constitutes its inner layer case.It between inner layer case and the outer shell the important cooling device of Planetary Screw Extruder.Axle bush has internal tooth.Rotary planet axis and its engagement.Need not guiding during the planet axis rotation.Heel teeth can guarantee that planet axis distance when rotated remains unchanged.Can be described as self-directed.It needs external orientation in the axial direction, because planet axis more or less can produce big pressure in the vertical.This pressure is the reaction pressure of the impetus of planet axis.This pressure starts ring by one to be supported, and planet axis just starts ring along this and slides.Hereinafter only say to start ring,, for example start ring and start packing ring although the startup ring for disparate modules usually has different titles in the extruder that has a plurality of planetary-screw modules.Each extruder module preferably designs according to the task that it should be carried out, for example, and according to following task
The filler of plastic grain and/or
The compression of plastic grain and/or
The fusing of plastic grain and/or
In the solution distribution of additive and/or
With the stirring of other raw material of inserting and/or
Solution or mixture stir evenly and/or
Outgas with the excessive moisture evaporation and to steam by heating
According to the difference of task, the engagement in the different extruder modules and/or the design of extruder module can be arranged correspondingly.Task then is, each screw rod of extruder member or each central shaft and/or central shaft are connected with the screw rod of other extruder member.When a plurality of planetary-screw members (module) serial arrangement, preferably there be same central shaft to pass each module.Central shaft is the same with single screw rod to be made up of many members, and these members are fixed by a pull bar.This makes it the same with single screw extrusion machine can have different members available, and member is connected with central shaft or changes single member.We also know, with a kind of extruder member (module) of planetary-screw structure and extruder member (module) combination of other structure.Especially commonly the combination of planetary-screw module and single screw rod module.When the screw rod of single screw rod module has being connected of external form sealing with the central shaft of planetary-screw module, be considered to strong.The connection of external form sealing adopts multikey shaft to connect.This connection comprises in a multikey shaft and the member one the correspondingly hole of internal recessing.Wherein multikey shaft is positioned in known design on the central shaft of planetary-screw module.Multikey shaft is made of an extension of central shaft.Mate with the diameter of multikey shaft in the hole of internal recessing in the adjacent screw member of single screw rod module, slots for the key that inserts multikey shaft.The production cost of multikey section bar is very high on the central shaft.Grooved bore corresponding in the screw rod of single screw rod module is like this too.This multikey shaft has introduction in as DE103004037349B4.When the extruder member with planetary-screw module and other structure made up, all module/members used same central shaft also very common.
Summary of the invention
The purpose of this utility model provides a kind of extruder of changeable type center bolt, and a kind of extruder that adopts the changeable type center bolt of combined type central shaft particularly is provided.The utility model has solved planetary-screw module extruder central shaft and has damaged the problem that is difficult to keep in repair, and has remedied the big deficiency of prior art cost consumption.
The extruder of a kind of changeable type center bolt of the present utility model, at least comprise a planetary-screw module, form by engagement shell in central shaft, rotary planet axis and, the central shaft of planetary-screw module is made up of sleeve shaped or annular construction member, there is the engaging tooth that is designed to the involute engagement outside, inserts in the rotary planet axis by this engagement.
As optimized technical scheme:
Wherein, the extruder of aforesaid a kind of changeable type center bolt, described sleeve shaped or annular construction member are located on the bearing, and replaceable, the bearing that has member has engagement, and drive effective the connection with extruder simultaneously.
The extruder of aforesaid a kind of changeable type center bolt, described bearing is made of an axle, with adjacent extruder module a common axle is arranged.
The extruder of aforesaid a kind of changeable type center bolt, the engagement between described axle and sleeve shaped or the annular construction member is a flank engagement, and equally is the involute engagement between the shell of the central shaft of planetary-screw member, planet axis and interior engagement.
The extruder of aforesaid a kind of changeable type center bolt, a tooth module of the engagement between described axle and the central shaft member, this module at least should be littler by 1/5 than the module of the engagement outside the central shaft, best 2/5, mesh the disparate modules that identical gradient and identical flexibility ratio and/or the engagement between axle and the member are compared with the external toothing on the central shaft.
The extruder of aforesaid a kind of changeable type center bolt, described axle is made up of member in the one side, wherein, the shaft component that drives stretches into a shroud member of central shaft always, thereby its moment of torsion can be delivered on the shroud member, and shroud member meshes at the tooth of the outside and planet axis on the one hand, thereby its moment of torsion can be delivered on the planet axis, insert the engagement of another shaft component on the other hand in the inboard, thereby its moment of torsion can be delivered on another shaft component, wherein, another shaft component meshes with another set of barrel member again at opposite side, thereby can transmit torque to another shaft component.
The extruder of aforesaid a kind of changeable type center bolt, described shaft component is designed to hollow, and fixes by being located at a pull bar in the cavity.
The extruder of aforesaid a kind of changeable type center bolt, described pull bar one end stretches into first shaft component on the moving direction of extruder, and the other end stretches into last shaft component on the moving direction of extruder.
The extruder of aforesaid a kind of changeable type center bolt, described planetary-screw module have an adjacent single screw rod module.
The extruder of aforesaid a kind of changeable type center bolt, described sleeve have interior external toothing and/or axle to realize central shaft and single screw rod module of planetary-screw module and fix its screw element in single screw rod module.
The extruder of a kind of changeable type center bolt of the present utility model, the central shaft of planetary-screw module is made up of sleeve shaped or annular construction member, and there is the engaging tooth that is designed to the involute engagement outside.Central shaft of the present utility model can also have a flank engagement in the adjacent necessary end of single screw member of connection, and flank engagement can be considered many mesh form.Comprising as:
The involute engagement
The engagement of L type
The cycloid engagement
The helix engagement
The rack-and-pinion engagement
The involute engagement is the less engagement in a kind of relative slit, and the influence that not changed by wheelbase in big zone is because path of contact is a straight line.Only at the roll-in point rolling friction is arranged, far away more from roll-in point, sliding friction is big more.These advantages make involute engagement becoming engagement most popular in the Planetary Screw Extruder.When relating to accelerator, preferably use the cycloid engagement.Compare with the involute engagement, the friction that cycloid is engaged in the accelerator is less.Cycloid is engaged on can bigger gears engaged rate on the less space, because the tooth of bottom thin than in the involute engagement.Less drive just has rolling friction after reaching certain number of teeth.The cycloid engagement is difficult to standardization, because compare with involute, its profile of tooth also depends on the number of teeth of less drive.Front and back also have other difficulty when moving.The cycloid engagement is compared with the involute engagement bigger tooth pitch.But the variation of the depth of engagement is very crucial.Preferably central shaft adopts identical engagement, comes and rotary planet axis engagement.The use of identical engagement makes central shaft can adopt a kind of engagement all the time.This is convenient to produce, and can reduce cost significantly.
The central shaft member can rotate the central shaft member when the excessive wear of central shaft head.In this structure, can be rotated, after the rotation, spindle nose has originally just become the afterbody of central shaft member.And original afterbody has become spindle nose by rotation.For the engagement on the planet axis, other method is engagement in being furnished with accordingly in the hole of adjacent single screw member.In be engaged in the case must be the same as with the engagement on the central shaft tiltedly meshing.Insertion as complete axially movable nut in the multikey shaft connection of routine is very complicated, therefore and when cost is higher, for the professional person, also want complicated with the interior engagement of oblique engagement design, therefore can not find quickly, how to realize that the integral body of expense reduces.But, should reduce cost when the production of interior engagement by cutting roughing and the processing of passing through spark erosion subsequently at least.This is equally applicable to use suitable pipe.What be fit to has such as the seamless pipe with corresponding wall thickness, both can carry out external toothing, also can carry out interior engagement.The machining of prebored hole or the raw material that provides as tubing can be undertaken by milling machine.Be preferably in during spark erosion and insert an electrode in the hole, this electrode should local be copied required engagement at least.On workpiece and electrode, should apply simultaneously a voltage, and produce electric current by liquid bath on every side.The setting of voltage should make electric current from part flow to electrode.Surface of the work weares and teares by electric current.Wearing and tearing realize by the corrosion of the most small particle.According to voltage and other condition of work, corrode very strong, to such an extent as in the rational time, surface of the work is being carried out required processing.The distance of surface of the work and electrode surface has determined the degree of wearing and tearing.Electrode moves on a track, and this track conforms to the route of the tooth (gear) of interior engagement.Because the particularity of spark erosion should be with reference to DE4436803C2.By spark erosion, can make very favorable interior engagement by economical and practical method.Can carry out spark erosion by milling machine in addition, not carry out roughing.This mainly is applicable to long material.The central shaft afterbody of single screw rod has the jack of a unslotted in the another kind method, and single screw rod is connected by bolt with central shaft.When carrying out the bolt connection, can screw thread be set in different positions.Central shaft is preferably with screwed hole.Then, screwed hole can be selected and the pivot/sleeve of single screw rod or an independently pivot/sleeve or a bar combination.Pivot is can be on single screw rod molded and be furnished with a respective threads be used for this screwed hole in central shaft.Can also independent one one end be fixed on the independent pivot on single screw rod.Being connected of independent pivot and single screw rod can be identical with the connection in the central shaft, and wherein the pivot other end inserts in the screwed hole of single screw rod.Independent pivot also can be connected by such mode with single screw rod, and promptly pivot passes through an opening in the single screw rod of shaft coupling (outer shaft coupling) insertion outwardly afterwards at a shaft coupling (interior shaft coupling) inwardly.This opening is preferably and passes through endoporus.Interior shaft coupling is arranged in this hole, and one of them existing hole is bored into interior shaft coupling with a bigger drill bit always.Use pole, just not necessarily will use pivot.Pole passes the hole in single screw rod and the central shaft.When single screw rod and central shaft needed with liquid cools or heating, pivot constituted a sleeve, then requires pivot shaft to passing the temperature control agent, preferably passes by a hole.Jia Gong pivot can be described as sleeve like this.
It is shocking that the utility model not only has described production advantage, also have the important advantage of another one,, can transmit much bigger moment of torsion than the multikey shaft of routine because by this new connection.Gap on this moment of torsion can reach 40 to 60% like a cork.Because link position is a weakness of conventional extruder, the remarkable increase by moment of torsion can obtain corresponding higher performance.The raising of performance can influence the efficient of equipment, is a great advantage.The central shaft member of Planetary Screw Extruder member is made of part independently, so that improve its efficient.Stipulate that simultaneously each design of part of Planetary Screw Extruder member is identical and have the through hole that meshes in, be positioned on the axle that this has an engagement of mating with the interior engagement of part on outer shell.The axle of the extruder member that axle like this is preferably adjacent is integrated.This comprises the extruder member of other structure, and single screw extrusion machine member especially is just as they are often used as pad.Preferably should join a unified axle that is used for whole extruder in addition, in each extruder member a plurality of parts be arranged on the axle.
The friction mode difference of planetary-screw member, thereby generation advantage economically.Friction is the beginning maximum on the moving direction of planetary-screw member usually.Foreign matter or raw material defective can cause the damage of central shaft member in addition.By according to of the present invention with individual part assembling planetary-screw member, replaceable single part when occurring damaging, and other part can not scrapped.Can solve wear problems according to the present invention, when moving direction comes first part excessive wear, can will come last part on the moving direction with new part exchanging.This replacing of part can make all parts move towards the direction opposite with the moving direction of extruder on corresponding axle in relevant Planetary Screw Extruder member.Preferably in the same way the damaged parts that comes first part back of Planetary Screw Extruder member on the axle on the extruder moving direction is also changed, be that is to say, each impaired part should take out.Its method is an end or the other end of part from affiliated axle to be taken off, and after taking out impaired part remaining part and a new part are shifted onto on the axle again.Wherein, new part must be at the tail end of the moving direction of axle.Like this, the part that the Planetary Screw Extruder member was positioned on moving direction after the damaged parts originally will move towards the opposite direction of moving direction, fill the position of the part that takes off.The part of replacing wearing and tearing according to the present invention can be limited to an extruder member or a plurality of extruder member, and the part of all the other extruder members also can be different, and this also is its advantage.Do not have above-mentioned flank engagement but have straight engagement the axle on part also can carry out according to part exchanging of the present invention.Directly be engaged on as known among DE8232585U1 etc.According to the present invention, multikey connects, or also can be considered straight engagement with being connected of single key.Adopt between the shell with central shaft, planet axis and the interior engagement of Planetary Screw Extruder solution identical meshing type in the zone in one's power between the part of what a Planetary Screw Extruder and the affiliated axle.Usually solution be that involute according to DIN 5480 meshes in one's power in the zone between the shell of central shaft, planet axis and interior engagement.Generally in the engagement between part and affiliated axle a little tooth module can be arranged, because solution in one's power in the engagement in the zone between the shell that loads on central shaft, planet axis and interior engagement of engagement between part and the affiliated axle.Because solution in one's power in the zone between the engaging tooth solution have mobile, and this can cause significant load according to the difference of the stickiness of solution, even the fracture of the fracture of engagement and initiation planet axis, there is not such load in engagement between part and the affiliated axle, or since solution in one's power the reagency that produces of the load in the zone in the engagement that is delivered under the significantly reduced situation between part and the affiliated axle.So just can select the small-sized tooth module in comparison space-efficient.Preferably the tooth module of using between part and the affiliated axle at least than solution between the shell of central shaft, planet axis and interior engagement in one's power the tooth module in the zone little by 1/5, little by at least five/second better.
Also have, because can use another kind of tooth module between part and the affiliated axle, the engagement between part and the affiliated axle should equally with the engagement in the central shaft member outside have identical gradient and flexibility ratio.Can guarantee that like this part that is pushed on the axle seamlessly continues the engagement on the central shaft outer shell, and not have skew between the part.Represent with the number of gears that moves side by side in the superincumbent situation of flexibility ratio.Usually should adopt the bull engagement on the Planetary Screw Extruder.The formation method of the engagement between central shaft, planet axis and the interior engagement shell is normally carried out milling and polishing to the external toothing on central shaft and the planet axis.So just can be on the central shaft member manufacturing center hole at first, process then around it face or
At first processing around face, then the manufacturing center hole and
The central shaft member is at first finished the central shaft member before splitting into identical part, or
Also carry out the sealing processing of part subsequently in time fractionation arbitrarily before finishing the central shaft member.
When selecting last-mentioned method, finish as being connected with a joggle between the uncompleted part of axle Buddhist monk, be favourable.Uncompleted like this part just can be fixed on the axle, and is aiming at back cutting and polishing with axle.Than the external toothing of central shaft and planet axis more difficult be interior engagement on the extruder shell.After shell accurately cut, engagement should be slotted usually.In addition, engagement can or not carried out coarse pre-engagement in coarse pre-engagement back, finally processes by spark erosion.On the axle of engagement, can equally with the external toothing on the planetary-screw member form engagement.Equally, the interior engagement on part or the affiliated planetary-screw member can equally with the interior engagement on the shell of planetary-screw member form engagement.
The beneficial effects of the utility model are:
The extruder of a kind of changeable type center bolt of the present utility model adopts the combined type center spindle structure, has solved planetary-screw module extruder central shaft and has damaged the problem that is difficult to keep in repair, and has remedied the big deficiency of prior art cost consumption.
Description of drawings
Fig. 1 is the structural representation of the extruder of a kind of changeable type center bolt of the utility model
Fig. 2 is a syndeton schematic diagram between central shaft and the single screw rod
Fig. 3 is a connection diagram between another kind of central shaft and the single screw rod
Fig. 4 is the structural representation of the central shaft of multikey shaft
Fig. 5 is the structural representation of the central shaft of another embodiment
Wherein 1 is that machinery bed 2 is that transmission device 3 is that hopper 4 is single screw rod modules
The 5th, planetary-screw module 6 is that planetary-screw module 7 is screw rods
The 8th, the shell 9 of single screw rod module is that planet axis 10 is that planet axis 11 is central shafts
The 12nd, helical blade 15 is that join domain 16 is that pull bar 17 is that ring 18 is multikey shafts
The 20th, single screw rod 21 is that single screw rod 22 is that central shaft 23 is engagements of central shaft
The 25th, interior shaft coupling 26 is that sleeve 28 is that gear pin 29 is that interior pipe 30 is pipes
The 31st, the tip 35 of interior pipe is that shaft coupling 40 is that outer shaft coupling 41 is axles
The 43rd, central axle sleeve barrel member 44 is that central axle sleeve barrel member 45 is central axle sleeve barrel members
The 46th, plug 47 is that retainer ring 48 is that external toothing 49 is that nut 50 is central shaft heads
The 51st, contact point 51a is that the contact 52 between gap or the shroud member is contact points
52a is that the contact 53 between gap or the shroud member is that contact point 54 is contact points
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.
As shown in Figure 1, it is the extruder of a kind of changeable type center bolt of the present utility model, it is a kind of extruder that adopts the changeable type center bolt of combined type central shaft, at least comprise a planetary-screw module, form by engagement shell in central shaft, rotary planet axis and, the central shaft of planetary-screw module is made up of sleeve shaped or annular construction member, and there is the engaging tooth that is designed to the involute engagement outside, inserts in the rotary planet axis by this engagement.
Wherein, described sleeve shaped or annular construction member are located on the bearing, and replaceable, the bearing that has member has engagement, and drive effective the connection with extruder simultaneously.
Described bearing is made of an axle, with adjacent extruder module a common axle is arranged.
Engagement between described axle and sleeve shaped or the annular construction member is a flank engagement, and equally is the involute engagement between the shell of the central shaft of planetary-screw member, planet axis and interior engagement.
A tooth module of the engagement between described axle and the central shaft member, this module at least should be littler by 1/5 than the module of the engagement outside the central shaft, best 2/5, mesh the disparate modules that identical gradient and identical flexibility ratio and/or the engagement between axle and the member are compared with the external toothing on the central shaft.
Described axle is made up of member in the one side, wherein, the shaft component that drives stretches into a shroud member of central shaft always, thereby its moment of torsion can be delivered on the shroud member, and shroud member meshes at the tooth of the outside and planet axis on the one hand, thereby its moment of torsion can be delivered on the planet axis, insert the engagement of another shaft component on the other hand in the inboard, thereby its moment of torsion can be delivered on another shaft component, wherein, another shaft component meshes with another set of barrel member again at opposite side, thereby can transmit torque to another shaft component.
Described shaft component is designed to hollow, and fixes by being located at a pull bar in the cavity.
Described pull bar one end stretches into first shaft component on the moving direction of extruder, and the other end stretches into last shaft component on the moving direction of extruder.
Described planetary-screw module has an adjacent single screw rod module.
Described sleeve has interior external toothing and/or axle to realize central shaft and single screw rod module of planetary-screw module and fix its screw element in single screw rod module.
As shown in Figure 1, be the structural representation of the extruder of a kind of changeable type center bolt of the utility model, shown an extruder of forming by a plurality of modules of different structure.This extruder has a machinery bed 1.It on the machinery bed transmission device 2 that gear and motor are housed.In addition, this extruder is made up of a single screw rod module 4 and two planetary-screw modules 5 and 6.Each module comprises a shell.A screw rod 7 rotates in the shell 8 of single screw rod module.Single screw rod module surrounds the charging zone of this extruder.For this reason, a charging door is arranged in the shell 8.A hopper 3 is arranged on the charging door.This hopper 3 has guaranteed that the filler in this hopper of packing into can enter this extruder.Filler can have different compositions.Major part is a plastic grain.Particle may comprise the mixture with other additive and filler.Additive and/or filler can be selected all or partial accession has in the mixture of particle.Single screw rod 7 has a tiltedly engagement.Show a screw channel of oblique engagement among the figure and be designated as 12.7 pairs of raw materials of single screw rod push.Raw material produces pressure and heating.A heating part is because the work of carrying out in single screw rod module 4 causes, and another part is because shell 8 heats accordingly.Heat and pressure may cause the fusing of plastics in single screw rod module 4, to such an extent as to single screw rod pushes the liquation in the planetary-screw module 5.Other processing/preparation of liquation is also carried out in the planetary-screw module.The finished product liquation comes out or also needs the liquation of post processing to come out from extruder from the discharging opening of extruder.Important post processing has such as the degassing: become gaseous state in the liquation or just be the usually necessary removing of the composition of gaseous state in extruder in surrounding air.Planetary-screw module 5 has a central shaft 11, planet axis 9, shell and one to start ring.Central shaft 11 also is the central shaft of second planetary-screw module 6 simultaneously.Planet axis 9 and central shaft 11 be the same to be had identical engagement and is connected with central shaft 11.They are around central shaft 11 rotations.In addition, rotary planet axis 9 is meshed with the shell of engagement in the planetary-screw module 5.9 of planet axis are slided along starting ring, and this starts ring on the contact point between two modules 5 and 6.Planetary-screw module 5 has formed a dispersion area in using example.The additive in the liquation and the meticulous distribution of filler in the dispersion area, have been carried out.The planetary-screw module is particularly suitable for disperseing, because liquation launches in the planetary-screw module.Planetary-screw module 6 conforms to planetary-screw module 5.It is the same with planetary-screw module 5 planet axis 10, shell and startup ring.But start ring and be located at outlet of extruder.Liquation carries out the last man-hour that adds in planetary-screw module 5, in planetary-screw module 5 liquation is cooled to outlet temperature/extrusion temperature usually.The qualified essential condition of product quality when correct adjustment is normally produced the plastic material plate before the liquation outlet.
Shown in Fig. 2 and 3, shown known connection between central shaft 11 and the single screw rod 7.Central shaft 11 1 ends insert an opening of single screw rod 7.This zone is designated as 15.In addition, shown pull bar 16 among Fig. 2, central shaft 11 and single screw rod interfix by pull bar.Fig. 3 has shown a known connection between central shaft 11 and the single screw rod 7.Wherein insert in the opening of single screw rod 7 end of central shaft, is designed to multikey shaft 18.It just in time is axial groove and protuberance (key) that multikey shaft has.The bayonet socket of single screw rod 7 and multikey shaft coupling.This is a hole of fluting around, thereby the key of multikey shaft can be pushed in the groove.In addition, central shaft 11 has a ring 17.Ring 17 is fixed on the central shaft 11, and as block, its size is restricted, so that central shaft 11 can be pushed in the opening of single screw rod 7.
As shown in Figure 4, according to the present invention, the central shaft 22 of an independent engagement has multikey shaft 18, rather than central shaft 11.The engagement of central shaft is tiltedly engagement, uses icon representation, and is designated as 23.In engagement is designated as single screw rod 21 of 21, be provided with one be used to in the jack of central shaft end of engagement, the external toothing coupling of this hole and central shaft 22, thus central shaft can be pushed in the jack under rotating accordingly.In addition, central shaft 22 interfixes with single screw rod 20.Fixing by 26 realizations of a sleeve.Sleeve 26 has one to have externally threaded front end, inserts the screwed hole of central shaft in its end 24.Sleeve 26 has shaft coupling outside at the other end, and sleeve 26 inserts the endoporus that passes through of single screw rod 20 by shaft coupling outside this interior shaft coupling 25 backs.Single screw rod 20 is positioned at the gear pin 28 that a design has corresponding bearing capacity.The extension by output shaft in using example of this gear pin constitutes.Being provided with a common multikey shaft between gear pin 28 and the single screw rod 20 connects.A pipe 30 passes gear pin 28.Pipe 30 has the multi-task.It has constituted the center of an aqueduct and sleeve 26.It helps stablizing.In using example, pipe 30 has formed a pull bar simultaneously because single screw rod 20 in the axial direction loosely be positioned on the pin 28.Tighten with sleeve pipe 26 pipe 30 end in the drawings, and pipe is provided with a take-up device at the other end, and therefore single screw rod is fixing with gear pin 28 in using example.Take-up device is that a bolt connects under the simplest situation.Wherein manage 30 other ends at output shaft and come out, pipe 30 is provided with an external screw thread there, therefore manages nut tension of 30 usefulness and can pass through sleeve 26, central shaft 22 to promote single screw rod 20 on the shaft coupling 35 of gear pin 28.Central shaft is pressed on the shaft coupling 25 of single screw rod 20.In other application example, be provided with the another kind of fixture of pull bar.Fixture can select to use hydraulic means, can produce controlled pressure like a cork and can unclamp fixing easily by it.The A/F of pipe 30 is very big, and therefore the inside can be overlapped in one and manage 29.Interior pipe 29 leads to the hole 36 of central shaft.The degree of depth that hole 36 is stretched in the tip 31 of interior pipe 29 depends on required adjustment.Cooling water can be selected to carry by interior pipe 29.Cooling water absorbs heat in central shaft, pipe 29 and manage space between 30 in flowing back to again then like this, has just been discharged heat.Cooling water also can be selected the space between first inlet tube and the interior pipe, pipe in introducing then.Again preparation in the cooling device that cooling water after the heating will not show in the drawings.In other application example, the temperature control agent is used for heating and/or cooling, maybe can switch to heating or opposite from cooling.In addition, also can use other temperature control agent, for example, oil.In using example, interior pipe is fixing in the axial direction, uses in the example at other, can regulate in the axial direction, therefore can exert an influence to cooling.
Fig. 5 has shown a central shaft of also slightly changing according to application form of the present invention, imitation Fig. 3.Central shaft is realized by an axle 41 generally.On the outer shell, axle 41 has the engagement of involute, and the involute on the outer shell of this engagement and central shaft meshes 48 identical gradient and identical flexibility ratio.In this zone, central shaft is made of a sleeve, and the opening at its center is provided with engagement in, and its outer shell has an external toothing 48.External toothing 48 is the engagements of involute, is the part of the engagement that do not show between the shell of central shaft, planet axis and interior engagement.The involute engagement is a kind of classical engagement of the gear of contact of rolling.Do not have hobbing process between axle 41 and the central shaft sleeve, other mesh form also can be fit to like this, transmits necessary moment of torsion to central shaft.Because production cost still uses the involute engagement.This makes it can be axle 41 and uses identical instrument with central shaft.Axle 41 has constituted the support of central shaft sleeve.The central shaft sleeve is made up of member 43,44 and 45.Contact between gap or the shroud member is designated as 51a and 52a.In using example, these sleeves have different length, and using in the example at other then has identical length.The moment of torsion of central shaft necessity is delivered to central shaft by the engagement between the sleeve of axle 41 and central shaft.Because be oblique engagement, rotatablely moving has also produced axial force.This power is absorbed by axle 41, so the central shaft member is fixed between central shaft head 50 and the retainer ring 47.Central shaft head 50 usefulness axle 41 is tightened.Fixed axis 47 is so same.In using example, axle 41 is comprised of multiple members simultaneously, and its contact point in the central shaft zone is designated as 51,52,53 and 54.This is beneficial to producing in using example.These shaft components are connected by the remainder of a pull bar with axle.Pull bar is made of a plug 46 in using example.In other application example, constitute by a sleeve.Plug 46 is arranged in the centre bore of axle 41 or different shaft component.After wherein plug 46 at one end stretches into an interior shaft coupling of axle 41 by an outer shaft coupling 40.The other end, plug is reinforced by a nut 49, on the shaft coupling of the shaft component under this nut is positioned at.The axle that drives 41 stretches into first member 44 of central shaft sleeve by a undivided part, thereby driving torque is delivered on the central shaft.There, moment of torsion is delivered on the planet axis on the one hand, is delivered to the adjacent shaft member that belongs to contact 53 on the other hand.This adjacent shaft component part is arranged in shroud member 44, and another part is arranged in shroud member 43.By being arranged in the shaft component of shroud member 43, the moment of torsion in the shroud member 43 is transmitted and is transported to planet axis on the one hand again there, is delivered on the other hand to belong to 52 adjacent shaft member.This shaft component part is arranged in shroud member 43, and another part is arranged in shroud member 45.Like this, its moment of torsion also is transported on the shroud member 45.By on learn between the contact point of shroud member 43,44,45 and the contact point of 51a and 52a enough distances are arranged.Minimum range draws according to the corresponding load capacity of engagement.According to Fig. 3, the central shaft member among the figure belongs to a Planetary Screw Extruder member, this member and a single screw extrusion machine module combinations.Different with Fig. 3, central shaft or its member also can be designed to axle 41 sleeves that pass completely through.Axle 41 simultaneously for the part of screw rod in the single screw extrusion machine module then axle 41 carrying element under the single screw extrusion machine module.Axle 41 is coupled with the output shaft of extruder drive unit, thereby makes the transmission campaign on single screw rod module can be delivered to single screw rod module and Planetary Screw Extruder module.
Through evidence, the extruder of a kind of changeable type center bolt of the present utility model has solved planetary-screw module extruder central shaft really and has damaged the problem that is difficult to keep in repair, and has remedied the big deficiency of prior art cost consumption.
Claims (9)
1. the extruder of a changeable type center bolt, at least comprise a planetary-screw module, form by engagement shell in central shaft, rotary planet axis and, it is characterized in that: the central shaft of planetary-screw module is made up of sleeve shaped or annular construction member, there is the engaging tooth that is designed to the involute engagement outside, inserts in the rotary planet axis by this engagement.
2. the extruder of a kind of changeable type center bolt as claimed in claim 1 is characterized in that, described sleeve shaped or annular construction member are located on the bearing, and replaceable, the bearing that has member has engagement, and drives effective the connection with extruder simultaneously.
3. the extruder of a kind of changeable type center bolt as claimed in claim 2 is characterized in that, described bearing is made of an axle, with adjacent extruder module a common axle is arranged.
4. the extruder of a kind of changeable type center bolt as claimed in claim 3, it is characterized in that, engagement between described axle and sleeve shaped or the annular construction member is a flank engagement, and equally is the involute engagement between the shell of the central shaft of planetary-screw member, planet axis and interior engagement.
5. as the extruder of claim 2 or 3 or 4 described a kind of changeable type center bolts, it is characterized in that, described axle is made up of member in the one side, wherein, the shaft component that drives stretches into a shroud member of central shaft always, thereby its moment of torsion can be delivered on the shroud member, and shroud member meshes at the tooth of the outside and planet axis on the one hand, thereby its moment of torsion can be delivered on the planet axis, insert the engagement of another shaft component on the other hand in the inboard, thereby its moment of torsion can be delivered on another shaft component, wherein, another shaft component meshes with another set of barrel member again at opposite side, thereby can transmit torque to another shaft component.
6. the extruder of a kind of changeable type center bolt as claimed in claim 5 is characterized in that, described shaft component is designed to hollow, and fixes by being located at a pull bar in the cavity.
7. the extruder of a kind of changeable type center bolt as claimed in claim 6 is characterized in that, described pull bar one end stretches into first shaft component on the moving direction of extruder, and the other end stretches into last shaft component on the moving direction of extruder.
8. the extruder of a kind of changeable type center bolt as claimed in claim 1 is characterized in that, described planetary-screw module has an adjacent single screw rod module.
9. the extruder of a kind of changeable type center bolt as claimed in claim 1 is characterized in that, described sleeve has interior external toothing and/or axle to realize central shaft and single screw rod module of planetary-screw module and fix its screw element in single screw rod module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200677134U CN201342786Y (en) | 2009-02-13 | 2009-02-13 | Extruding machine with replaceable center bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200677134U CN201342786Y (en) | 2009-02-13 | 2009-02-13 | Extruding machine with replaceable center bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201342786Y true CN201342786Y (en) | 2009-11-11 |
Family
ID=41274369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200677134U Expired - Fee Related CN201342786Y (en) | 2009-02-13 | 2009-02-13 | Extruding machine with replaceable center bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201342786Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371408A (en) * | 2010-08-16 | 2012-03-14 | 恩太思国际贸易(上海)有限公司 | Manufacturing method of internal teeth of planetary screw extruder |
| CN103764368A (en) * | 2011-09-01 | 2014-04-30 | 克劳斯马菲贝斯托夫有限公司 | Extruder screw, extruder, and method for producing an extruder screw |
| CN104015336A (en) * | 2013-03-01 | 2014-09-03 | 格诺伊斯有限责任公司 | Extruder |
| CN105216092A (en) * | 2015-11-10 | 2016-01-06 | 张沙 | A kind of laying device and corresponding spice spreading system |
| CN107839179A (en) * | 2017-11-16 | 2018-03-27 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw-rod structure of injection machine |
| CN114080313A (en) * | 2019-06-11 | 2022-02-22 | 布勒股份公司 | Screw rod processing device of extruder |
-
2009
- 2009-02-13 CN CNU2009200677134U patent/CN201342786Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371408A (en) * | 2010-08-16 | 2012-03-14 | 恩太思国际贸易(上海)有限公司 | Manufacturing method of internal teeth of planetary screw extruder |
| CN103764368A (en) * | 2011-09-01 | 2014-04-30 | 克劳斯马菲贝斯托夫有限公司 | Extruder screw, extruder, and method for producing an extruder screw |
| CN103764368B (en) * | 2011-09-01 | 2017-03-29 | 克劳斯马菲贝斯托夫有限公司 | The method of extruder screw, extruder and manufacture extruder screw |
| CN104015336A (en) * | 2013-03-01 | 2014-09-03 | 格诺伊斯有限责任公司 | Extruder |
| CN104015336B (en) * | 2013-03-01 | 2016-08-31 | 格诺伊斯有限责任公司 | Extruder |
| CN105216092A (en) * | 2015-11-10 | 2016-01-06 | 张沙 | A kind of laying device and corresponding spice spreading system |
| CN107839179A (en) * | 2017-11-16 | 2018-03-27 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw-rod structure of injection machine |
| CN107839179B (en) * | 2017-11-16 | 2019-07-16 | 宁波市鄞州堃信工业产品设计有限公司 | A kind of screw-rod structure of injection molding machine |
| CN114080313A (en) * | 2019-06-11 | 2022-02-22 | 布勒股份公司 | Screw rod processing device of extruder |
| CN114080313B (en) * | 2019-06-11 | 2024-06-07 | 布勒股份公司 | Extruder screw processing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201342786Y (en) | Extruding machine with replaceable center bolt | |
| CN107107438B (en) | Planetary roller extruder with central screw connection | |
| CN101837633B (en) | Embedded planetary-screw pulsation plasticizing exhaust extruder and method | |
| CN101614307B (en) | Method and device for manufacturing external thread of sealing pipeline and product thereof | |
| CN104684680A (en) | Method and device for directly screwing together at least two components without a pilot hole using a holding down clamp | |
| EP0265521A1 (en) | Rotor of downhole screw motor, method and device for making thereof | |
| CN207119983U (en) | A kind of continuous adjustable multi-shaft device | |
| CN101362377B (en) | High-efficiency multi-screw extruder | |
| CN110877148A (en) | Multistage floating type shaft shoulder dual-drive friction stir welding device and welding method | |
| CN212495633U (en) | High-speed universal milling head | |
| CN103862653A (en) | Parallel co-rotating intermeshing twin-screw extruder | |
| CN103862654A (en) | Parallel counter-rotating intermeshing twin-screw extruder | |
| CN101745556A (en) | Pipe end extrusion molding machine | |
| CN102146769A (en) | Manufacture method for machining equivalent-thickness rubber inner jacket layer threaded rod drilling tool stator and device thereof | |
| CN201671534U (en) | Screw drilling tool | |
| CN108161088A (en) | Tandem type spiral hole milling device for motor | |
| CN105673818A (en) | Main gearbox assembly of single-screw extruder and application of main gearbox assembly | |
| CN108188965A (en) | Nut spanner between a kind of axial-flow compressor rotor disk | |
| CN217858436U (en) | Double-row multi-branch servo pipe expander | |
| CN107838470B (en) | Numerical control automatic boring coupling hole machine tool | |
| CN214248176U (en) | Phase adjusting device of double output shafts of homodromous double-screw speed reducer | |
| CN201960181U (en) | Equipment used for processing helical curved surface of cavity of pre-contour stator of Mono drilling rig/pump | |
| CN102059386B (en) | Mono drill/pump pre-profile stator inner cavity spiral curve processing equipment and method | |
| CN101602075B (en) | Drill rod torsion device | |
| CN111791459B (en) | Incongruous double helix desulfurization extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Entex International Trading (Shanghai) Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20150213 |
|
| EXPY | Termination of patent right or utility model |