CN1681638B

CN1681638B - Cooling tube and method of using same

Info

Publication number: CN1681638B
Application number: CN038222701A
Authority: CN
Inventors: W·内特; J·J·尼韦尔斯; R·M·昂特兰德; T·乌拉茨; Z·罗曼斯基
Original assignee: Husky Injection Molding Systems Ltd
Current assignee: Husky Injection Molding Systems Ltd
Priority date: 2002-09-19
Filing date: 2003-09-02
Publication date: 2011-08-24
Anticipated expiration: 2023-09-02
Also published as: RU2296673C2; TWI225002B; NO20051875L; CN1681638A; JP2005538869A; NO20051875D0; NZ538057A; JP4368801B2; KR20050047542A; RU2005111552A; AU2003269622B2; MXPA05002870A; CA2493961A1; WO2004026561A3; EP1554106A2; CA2493961C; AU2003269622A1; TW200416126A; BR0314320A; KR100747406B1

Abstract

A cooling tube assembly for operating on a malleable molded plastic part. The tube assembly comprising a porous tube/insert having a profiled inside surface, and a vacuum structure configured to cooperate with the porous tube. In use, the vacuum develops a reduced pressure adjacent the inside surface to cause an outside surface of the malleable molded plastic part, locatable within the tube assembly, to contact the inside surface of the porous insert so as to allow a substantial portion of the outside surface of the malleable part, upon cooling, to attain a profile substantially corresponding to the profile of the inside surface. The cooling tube may include an extruded tube with at least one cooling channel produced by extrusion, the extruded cooling tube may be configured to operate without the porous insert.

Description

Cooling tube and using method thereof

Technical field

The present invention relates generally to cooling tube, and particularly but do not get rid of and be applicable to cooling tube used in the injection molding molding machine, for example plastic parison or preform with cooling plastic spare.More particularly, the present invention relates to the tectonic type of these cooling tubes, and relate to the method for making and using this pipe, for example be used for manufacturing process by PETG (PET) or the made preform of other analog.

Background technology

For accelerate cycle time, mould machine has developed into and has comprised cooling system after the mold of operating simultaneously with the injection-molded cycle.More precisely, when an injection cycle carries out, usually cooling system is at the previous one group of enterprising line operate of moulding article that forms after the mold of working with complimentary fashion with manipulator part stripper apparatus, and these group goods are in they suitable warm but enough solidify in the permission limited operation with regard to the demoulding still.

Mold, die cavity (nests) or the pipe of adjustment behind the molding (or cooling) are well-known in the prior art.Usually, this device is made by aluminium or other material with good heat conductive performance.In addition, known to adjustment fluid-cooled cooling tube behind the molding of molded plastic part (for example plastic parison or preform).Usually, this effective solid blank is made by traditional machining process.

In order to improve cooling effectiveness and cycle time performance, EP patent 0 283 644 has been described a kind of multidigit and has been taken out plate (take-out plate), and it has the ability of the many groups of more than one injection cycle storage preform.In other words, by preform is kept more than one injection cycle in cooling tube, make every group of preform stand the reinforcement conduction cooling of rise time.Strengthening under the cooling, improve the quality of preform.In the lucky moment, from taking out the plate ejection to (usually by mechanical ejecting mechanism) conveyer, now be in one group of cooling tube of sky so that one group of new preform is inserted into one group of preform.

European patent EP 0 266 804 has been described a kind of cooling tube that closely cooperates that uses with arm ending tool (EOAT).This cooling tube that closely cooperates is a water-cooled, and is arranged as the preform of accepting the part cooling.More particularly, after preform cools off some in the mold of sealing when, open mold, on mold die cavity and each limit of core and enter the EOAT that extends between the preform of cooling tube from the core unloading and work subsequently and conduct the outside of cooling off preform by heat.Along with the cooling of preform, it can shrink and further slip in the pipe, cooperates on pipe inner close fitting ground.

A problem of known cooling tube setting is that preform (at certain a bit, if not from adopting that) unclamps and the contacting of cooling tube madial wall, and the loss of this thermo-contact has reduced cooling effectiveness and caused inhomogeneous cooling.Self-evident, inhomogeneous cooling can cause part defect, comprises deformation of overall shape and plastics crystallization (producing sand-blind zone).In addition, lack the contact meeting and cause ovality on the circumference of preform, the loss of cooling effect means that then preform will could take out from cooling tube under high temperature.Except causing the distortion of surface scratch and appearance and size, under excessive temperature, take out preform too early and also can cause the semi-molten outside of preform to adhere on pipe or other preform; Clearly, all these influences all are undesirable, because this causes part to be scrapped and has increased cost to manufacturer.So wish a kind of cooling tube of design, it is included in the device that obtains and/or keep in touch between the madial wall of the outer surface of preform and cooling tube.

U.S. Patent No. 4,047,873 disclose a kind of injection-blow molding mould, and wherein die cavity has the porous sidewall of sintering, so that the vacuum attraction parison contacts with the cooling tube sidewall.

U.S. Patent No. 4,047,873 disclose a kind of method and apparatus that is used to produce biaxially oriented blow-molded article, wherein sequentially carry out in longitudinal stretching mould and warp direction stretching blow molding die respectively vertically and the warp-wise expansion step.Particularly the method to parison longitudinal stretching in the longitudinal stretching mould is described, this longitudinal stretching mould be included in the die cavity that is shaped on the loose structure and a plurality of above it pressure control zone of framework.

Japan Patent publication 56113433 discloses a kind of method that is used for the production hollow object, the method comprising the steps of foam parison extrusion molding in the vacuum forming mould and be the parison vacuum forming hollow object subsequently, it is flat with this foam micropore in hollow object can not to be collapsed, and the vacuum forming mould is included in the die cavity that is shaped in the loose structure.

German patent publication thing DE 197 07 292 discloses a kind of method and apparatus that is used to produce sterilizing bottle, the method comprising the steps of the parison extrusion molding in the vacuum forming mould and by vacuum draw parison is expanded in mold subsequently, thereby bacterium can not be entered in the bottle, and traditional blow moiding method comes to this.

U.S. Patent No. 4,208,177 disclose a kind of injection mold cavities that comprises multihole device, and it is communicated with the cooling channels that makes cooling fluid bear different pressures, so that change the fluid flow by the porous connector.

U.S. Patent No. 4,295,811 and 4,304,542 disclose a kind of injection-blow molding core with porous metals wall part.

The article of one piece " existing plastics technology " printed from the internet on July 27th, 2002, and its title is " the large-scale stretching of porous mold ", and author Mikell Knights discloses the porous instrument compound of a kind of being called " METAPOR ".This piece article discloses the technology that this material improves surface smoothness with closed pores a little and reduces porosity of polishing.

International steel die (the International Mold Steel of Co., Ltd, Inc.) one piece of article printed from the internet on July 27th, 2002, and its title is " a porous aluminum molding jig material ", author Scott W.Hopkins discloses porous aluminum molding jig material equally.More than disclosed material and use and relate to the vacuum-thermoform of plastics in its mold in two pieces of articles, wherein the vacuum that attracts by the half module loose structure sucks the plastic sheet of preheating in the single half module.

Another problem of known cooling tube is that the cost that they are made and assemble is expensive and consuming time.In addition, consider that common manipulator extraction system may comprise in a row one or more groups cooling tube, thereby the service weight of cooling tube (promptly comprising cooling water) is just most important, so the accumulating weight of manipulator supporting becomes the item (inertia or the momentum condition that promptly are used for manipulator) of important operation and/or designing institute consideration rapidly.And, in one-period, take out dozens of preform (each injection cycle of present PET system is produced up to 144 preforms) when manipulator is operated usually, so the energy that expends of manipulator and the specification requirement condition of manipulator will improve unfavourably.So robot device that high-tech requires and operation meeting thereof bring huge financial cost burden to the end user.Therefore, wish to dispose and make cooling tube according to structure and the method simplified respectively.In addition, also wish the cooling duct is configured to unlimited relatively passage, to try hard to reduce the service weight of cooling tube.

According to a first aspect of the invention, provide at it by the structure and/or the step of the laggard line operate of molded structure molding for the pipe assembly than the molded plastic part of heat and toughness.The pipe assembly comprises porous member, and it has the moulding inner surface, to accept the outer surface part of molded plastic part.The profile of inner surface preferably corresponds essentially to the outer surface part of the molded plastic part that will cool off.The pipe assembly also comprises vacuum structure, and it is configured to match with porous member, to form the pressure that reduces near inner surface.In operation, the pressure that reduces makes the outer surface part that is positioned at pipe assembly toughness molded plastic part contact with the inner surface of porous member, thereby make the essential part of the outer surface part of toughness part when cooling, can obtain to correspond essentially to the profile of inner surface profile, and obviously prevent the outer surface part disfigurement of at least one working of plastics whereby.

According to a second aspect of the invention, be provided for the structure and/or the step of porous cooling chamber, this porous cooling chamber is configured to match with vacuum structure, so that accepting after by the molded structure molding than the moulded plastics articles of heat and toughness and cooling off this moulded plastics articles.The porous cooling chamber comprises the porous member that is shaped with porous material.Porous member comprises (i) inner surface, and its profile reflects the shape of a moulded plastics articles outer surface part and (ii) vacuum syndeton basically.The vacuum syndeton of porous member is configured to match with vacuum structure, so that near the porous member inner surface, form the pressure that reduces in operation, cause the inner surface of the outer surface part contact porous member of toughness moulded plastics articles, thereby the outer surface part that makes the toughness part when cooling keeps corresponding essentially to the profile of inner surface profile, and obviously prevents the outer surface part disfigurement of moulding article whereby.

According to a third aspect of the present invention, be provided for the structure and/or the step of arm ending tool, this arm ending tool is configured to be supported by manipulator in injection molding machine.The arm ending tool comprises and is configured to the board that is connected with manipulator that this board supports at least one moulding article cooling device.This at least one moulding article cooling device comprises porous member, and the profile of its porous inner surface reflects the shape than the moulding article outer surface part of heat and toughness basically.The arm ending tool also comprises the structure of finding time, and it is configured to by the porous member evacuate air.In operation, the porous member support is in contact with it so that the toughness moulding article in the porous member expands by porous inner surface evacuate air, obviously prevents the outer surface part disfigurement of at least one working of plastics whereby.

According to a fourth aspect of the present invention, be provided for the structure and/or the step of injection mould manipulator.The injection mould manipulator comprises arm member, and it is configured to be arranged near the injection molding machine; Be configured to the board that is connected with arm member, this board supports at least one moulding article cooling device.This at least one moulding article cooling device comprises the dismounting porous member, and the profile of its porous inner surface reflects the shape than the moulding article outer surface part of heat and toughness basically.The injection mould manipulator also comprises the structure of finding time, and it is configured to by at least one porous member evacuate air.In operation, the porous member support is in contact with it so that the toughness moulding article in this at least one porous member expands by porous inner surface evacuate air, obviously prevents the outer surface part disfigurement of at least one working of plastics whereby.

According to a fifth aspect of the present invention, be provided for the structure and/or the step of injection molding machine.Injection molding machine comprises at least one molded structure than the working of plastics of heat and toughness of molding.This injection molding machine comprises that also at least one has the porous cooling chamber of moulding inner surface, and this inner surface is configured to be kept later on by the molded structure molding and cool off this working of plastics at least one working of plastics.The profile of inner surface corresponds essentially to the outer surface part of at least one working of plastics that will cool off.This injection molding machine also comprises at least one vacuum passage, and it is configured to provide the pressure that is lower than environment to inner surface.In operation, near the pressure that is lower than environment inner surface makes the outer surface part of at least one working of plastics contact the inner surface at least one porous chamber, obviously prevents the outer surface part disfigurement of at least one working of plastics whereby.

According to a sixth aspect of the invention, for the molded plastic part method of cooling off than heat and toughness provides structure and/or step, obviously prevent the outer surface part disfigurement of at least one working of plastics whereby.The method comprising the steps of: (i) the molded plastic part porous cooling chamber of packing into, this porous cooling chamber comprises inner surface, and its profile corresponds essentially to the outer surface part of the molded plastic part that will cool off; (ii) near the moulding inner surface of porous cooling chamber, form the pressure that reduces, be in contact with it, thereby obtain corresponding basically shape so that the outer surface part of molded plastic part moves to; (iii) by thermal dissipating path heat extraction from molded plastic part, so that molded plastic part is cured to the degree that keeps its external surface shape; (iv) release moulded plastics articles.

According to a seventh aspect of the present invention, be provided for the being shaped structure and/or the step of moulded plastics articles.Moulding article has its external surface shape of at least a portion and is limited by the inner surface of porous cooling chamber, and the profile of this inner surface reflects the shape than the moulding article outer surface part of heat and toughness that will cool off basically.This moulded plastics articles is shaped by following operation:

(i) the toughness moulded plastics articles porous cooling chamber of packing into; (ii) by a plurality of intermediate space moulded plastics articles ambient air of finding time, these intermediate space are constructed along porous cooling chamber inner surface, so that the outer surface part of moulded plastics articles moves to the contact moudling inner surface, thereby acquisition corresponds essentially to the shape of moulding inner surface; (iii) by thermal dissipating path heat extraction from moulded plastics articles, so that abundant curing mold plastic products, thereby keep the profile of moulded plastics articles; Leng Que moulded plastics articles outer surface part presents basically the surface smoothness corresponding to porous cooling chamber intermediate space whereby.

According to an eighth aspect of the present invention, by be used to cool off wherein the cooling tube of dress injection molding product part structure and/or step are provided.According to preferred embodiment, cooling tube comprises the extruding body, and it has inner surface and outer surface and a plurality of placing therebetween along the vertical cooling duct of arranging of described body.This cooling tube also comprises the interface channel that is configured between the described cooling duct, the cooling duct is interconnected at least one cooling circuit; Be configured in each end of body to seal the sealing of described cooling duct; And the entrance and exit that in described pipe fitting, is used for described at least one cooling duct.This cooling tube also comprises the connector that is arranged in described body far-end.The inner surface of described body and the inner surface machine that is configured on the described connector add the formation forming cavity, and this forming cavity is consistent basically with the outer surface profile of the described part of described moulding article.

According to a ninth aspect of the present invention, the method that is used to push cooling tube comprises step: (i) extruding pipe fitting, and this pipe fitting has inner surface, outer surface and a plurality of placing therebetween along the cooling duct that described body is vertically arranged; (ii) machine adds inner surface of tube body, makes its outer surface with moulding article consistent basically; (iii) between the cooling duct, construct interface channel; Connector (iv) is shaped.

The present invention advantageously provides a kind of pipe structure for cooling, and its effect is the working of plastics that cools off the molding just that is positioned at cooling tube quickly and effectively, thereby improves the robustness of preform and increase circulation timei comprehensively.In addition, owing to preform causes cooling PET and do not wish to produce under the situation of acetaldehyde after being subjected to relatively-high temperature for a long time, rapid cooling provided by the present invention has advantageously reduced the danger of the unacceptable high-load acetaldehyde of appearance in final plastic products (such as container for drink).Advantageously, the present invention attempts to keep the shape that moulded component (such as preform) is required and limited.

In addition, the present invention has advantageously provided a kind of extruding cooling tube, and this cooling tube is easy to make and be light structures, thereby advantageously reduces the specification requirement of manipulator and/or the operational cycle time of improvement manipulator.In addition, because pipeline is improved and forms integral body, thereby cooling tube has strengthened cooling capacity.

In addition, optional embodiment of the present invention provides the cooling tube assembly that can vacuum forms moulding article.

Description of drawings

With reference now to accompanying drawing, exemplary embodiments of the present invention is illustrated, in the accompanying drawings:

Fig. 1 is the typical injection molding machine plane that comprises manipulator and arm ending tool;

Fig. 2 represents cooling tube assembly sectional view according to the preferred embodiment of the invention;

The cross section zoomed-in view of Fig. 3 presentation graphs 2 embodiment cooling tube assemblies wherein has the new moulded component of just having packed into;

The sectional view of time chart 2 cooling tube assemblies after Fig. 4 is illustrated in;

Fig. 5 represents the cooling tube assembly sectional view of other embodiment;

The view in A-A cross section in Fig. 6 presentation graphs 5;

Fig. 7 represents the cooling tube assembly sectional view of second other embodiment;

Fig. 8 represents the cooling tube assembly sectional view of the 3rd other embodiment;

Fig. 9 is a cooling tube sectional view according to the preferred embodiment of the invention;

Figure 10 is the view along Fig. 9 cooling tube ' A-A ' cross section;

Figure 11 is the stereogram of cooling tube porous insert; And

Figure 12 is the cooling tube sectional view of the optional embodiment according to the present invention;

The specific embodiment

Now just embodiment describes the present invention, and wherein the porous cooling tube is used for the injection molding molding machine, although the present invention is equally applicable to any technology of being born this part of cooling after part forming by cooling tube or other similar device.For example, the present invention can be applicable in the part connecting gear of injection molding machine and blow molding die molding machine.

Fig. 1 illustrates a kind of typical injection molding machine 10 that can match with the device of supporting cooling tube of the present invention.During each injection cycle, mould machine 10 is produced a lot of plastic preforms (or parison), and its number is equivalent to by being positioned at the number of cavities that machine 10 complementary mold halves 12,14 limit.

Do not having under the situation of particular restriction, injection molding machine 10 comprises molded structure, such as fixation clip 16 and movable pressing board 18.In operation, movable pressing board 18 moves by means of stroke cylinders (not shown) or other similar device with respect to fixation clip 16.Can understand easily, in machine, produce clamping force by the mechanical grip mechanism 35 that uses connecting rod 20,22 and utilize hydraulic system to produce mold clamping force (being closed tonnage, (closure tonnage)) usually.Half module 12,14 constitutes the mold that has one or more die cavitys 22,24 usually together, and half module 12,14 lays respectively among movable pressing board 14 and the fixation clip 16.Near fixation clip 16 and movable pressing board 14, be provided with manipulator 26, with carrier arm ending tool (EOAT) 28, such as taking out plate.Take out plate 28 and comprise a plurality of preform cooling tubes 30, its number is equivalent to the number of the preform 32 produced in each injection cycle at least, and can be its multiple.In the use, at die sinking position (as shown in Figure 1), manipulator 26 will take out plate and move into common the aligning with the mold core side and wait subsequently, enter the corresponding aligning cooling tube 30 up to by operation stripper plate 33 moulding article (for example preform 32) being peeled off from each core.

Cooling tube 30 is shaped usually and reflects the exterior contour of moulding article (for example preform 32), therefore under PET preform situation, cooling tube 30 is preferably the hollow tube at cylindrical beginning, each pipe has the passage that its bottom is connected to vacuum or pump unit 34, and unit 34 is used for attracting and/or just preform 32 being remained in the pipe 30.

Usually, take out plate 28 by connecting suitable radiator and/or cooling off by complex art, it comprises the internal water passage that will illustrate.

Fig. 2 illustrates cooling tube assembly 50, and it comprises preferably and is about the inside porous insert 52 that the porous aluminum material in 3 to 20 micrometer ranges is made by for example porosity.The porosity characteristic of substrate is obtained by its material structure or chemical scavenging (or adjustment) treatment process usually, is introduced in the substrate in chemical scavenging treatment process intermediate gap, thereby is created in the internal structure that is similar to honeycomb or sclerosis sponge in a way.The present invention can utilize and pass the communication passage that size exceeds the base material of 3 to 20 micrometer ranges, though with regard to preferred embodiment as herein described and for example METAPOR that buys has easily been stated in speech on market ^TMAnd PORCERAX ^TMSuch material (both produce by international steel die Co., Ltd).In any case porosity is the function of surface smoothness, will be understood that the machining on surface may influence the porosity that passes material.In a preferred embodiment, inner porous insert 52 is made by the structure with certain intensity and mechanical elasticity performance, although inner porous insert also can be made by the material of similar graphite.Preferably inner porous insert 52 is heat conductors, and especially preferably its heat conductivility is good, for example the composite of Metal Substrate or sintering.

Be appreciated that METAPOR ^TMBe the mixture of aluminium and epoxy resin, its mixing ratio is greatly between 65-90% aluminium powder and 35-10% epoxy resin.

Typical cooling tube assembly 50 can have the inner length size of about 100 millimeters (mm), and internal diameter is about 25mm, and external diameter is about 40mm, and these sizes have reflected the size of moulding article.Certainly, diameter that can pipe manufacturer is different and length are to adapt to the concrete shape of the preform that is cooled.

From the viewpoint of practice, porous insert 52 is preferably placed in the body 54 that is surrounded by sleeve pipe 56.Cooling duct (or path) 58 can be chosen contiguous body 54 wantonly and end or formation, and transmits cooling fluid (for example air, gas or liquid), with cooling body 54 and insert 52, thereby absorbs heat in the molded plastic part from porous insert 52.Each cooling duct is preferably configured as has the cross section that comprises a plurality of arc elongated slots, and these grooves surpass 50% circumference extension around corresponding cooling die cavity internal diameter.On the other hand, body 54 direct heat simply is coupled to radiator, to reduce the combination general weight of pipe and arm ending tool 28, as long as radiator can absorb heat fully from preform in the unit interval.

Sealing 60-62 between sleeve pipe 56 and the body 54 comprises cooling fluid in groove 58.Passage 66 is ended on the outer surface of porous insert 52 or is formed, and the device that applies vacuum by the loose structure of porous insert 52 is provided.

Except passage 66, the outer surface of porous insert 52 is configured such that and keeps the surface of good contact between insert 52 and body 54, thereby the heat of optimizing from the porous insert to molded plastic part is conducted.Apply vacuum by the porous insert like this, to cause that molded plastic part 32 its sizes of expansion of newly packing into as shown in Figure 3 are to contact the inner surface 82 of porous insert, as shown in Figure 4.Therefore, heat is transmitted to porous insert 52 and arrives the body 54 that cools off through porous insert 52 from molded plastic part 32.Amplify in Fig. 3 the position that should be noted that the dome portion 80 of preform 32, and the typical case that Fig. 3 is a preform when being imported into cooling tube assembly 50.

Under the situation that applies suction or vacuum, the pressure of environment occurs being lower than in insert 52 outsides, thereby cause air to flow through porous insert 52 and flow channel 66 from the inner surface 82 of porous insert 52.Above-mentioned suction causes occurring being lower than at the outer surface of molded plastic part the pressure of environment again, causes its immigration to contact with the inner surface 82 of porous insert 52.

At the METAPOR that has 3-20 micron gap ^TMIn the PET environment of insert, the system of can be obtains the working vacuum pressure (utilizing U3.6s Becker vavuum pump) of about 254 to 762 millimeters (10 to 30 inches) mercury column scopes.Yet, should be appreciated that the vacuum pressure that adds finally determines (and being its function) by the mechanical performance of plastic material.

Also can (by means of fluid ejector and lip packing) normal pressure be applied to the preform the inside, so that preform touches at least a portion of cooling tube inner surface, though this needs sealing system.Therefore according to the shape of part and the cycle period of cooling, any suitable pressure reduction can be applied between the outer surface of the inner surface of cooling tube and working of plastics.Preferably, the whole outer surface of preform (cylindrical outer surface and terminal spherical outer surface, be dome 80) touch porous insert cooling tube, though in fact the exterior contour of preform may stop it forward, the contiguous any inwardly gradually thin part 84 of preform 32 necks for example.Yet according to the part of working of plastics design and needs cooling thereof, cooling tube and vacuum structure can be designed so that any part of preform contacts with cooling tube.In addition, vacuum (or normal pressure) can one, two or three or more apply in the multistage, distribute with the difference cooling that reaches working of plastics.For example, the thick part of preform is directly contacted with cooling tube, and the thin part of preform can be contacted with cooling tube in the later stage.In a word, the time of preform and cooling tube 50 full contacts just can not caused the possibility of any damage again for the operation that strengthens preform, and this depends on material, size and the shape of cross section of preform.

Can reduce the porosity of porous insert 52, improving the surface smoothness (being inner surface 82) with the contacted porous insert 52 of molded plastic part, thereby and with any vestige (marking) on moulded component surface degree that minimizes.Yet the porosity that reduces insert 52 has also reduced the air mass flow through wherein.Can allow the flow of appropriateness to reduce, because this can seriously not hinder the effect that forms vacuum or reduce its intensity, in case particularly because the surface of moulded component touches insert, then all air-flows all can stop.Air velocity only influences when moulded component 32 and enters the speed that pipe forms vacuum 52 time at first.The reduction of porosity obtains by milling and grinding technics, and other grinding or discharge processes step can be removed chip from surface gap, to increase porosity.In any case, be understood that easily the flow rate that flows through material is the function of impressed pressure and porosity.

In cooling tube 50 the insides, because moulded component part when becoming molded plastic part is cooled off but still had tough sexual state, vacuum will make the diameter of molded plastic part perhaps also have extended length.Moulded component is subjected to being applied to the vacuum on its most of outer surface, and its inner surface is exposed to environmental pressure.

In Fig. 5, part further entered pipe 50 when the support ledge 100 of moulded component 32 prevented this part cooling and contraction.At this moment, vacuum is with in the further induction pipe of the blind end of part, and support ledge then prevents the opposite end follow-up.In all embodiments, vacuum causes part to change shape, makes and eliminates the gap that is present at first between part outer surface and porous insert 52 respective inner surfaces basically.

For having the radially molded plastic part of feature (for example inwardly gradually thin part 84), their shape can not change basically during above-mentioned extension phase.The structure of porous insert 52 inside dimensions and size are made like this, diameter and the part respective diameters that is cooled are complementary or big slightly, thereby prevent the remarkable disfigurement of working of plastics shape.

End sealing 104 (Fig. 3) at 50 beginnings of cooling tube provide in assembly the device that initially forms (keeping when needing) vacuum.If porous insert 52 has not and preform part engaging portion, zone 106 below support ledge 100 for example shown in Figure 4, so just need end sealing 104 to guarantee that moulded component keeps contacting with inwall 82, and when part cools off, prevent its contraction thus, otherwise can omit end sealing 104.If vacuum do not occur, therefore the contraction meeting of part forms gap (and cause suction losses) between the interior cooling wall of part outer wall and insert 52, thereby greatly hinders from part to insert 52 and the heat conduction that enters cooling tube.Therefore, the closely contact of maintenance between moulded component outer surface and insert inwall 82 that continues to have given security of vacuum is so that cooling performance reaches at utmost.

Get back to Fig. 3, cooling tube assembly 50 preferably is fastened to board or is taken out plate 110 by screw 112.Insert 52 is remained in the assembly by the collar 114, and the collar 114 is screwed in the end of body 54 or with the fastening or combination of any other conventional apparatus.In board 110, be provided with cooling channels import 116 and cooling channels outlet 118.On board 110, also be provided with vacuum passage (or path) 120.Through after sufficient cool time, replace vacuum (by putting upside down the function of vavuum pump) with compressed air stream, by above-mentioned pressure part is released from cooling tube assembly 50.

The optional embodiment of Fig. 5 and 6 expression cooling tubes 150 wherein replaces body 54 and sleeve pipe 56 with the extruded tube that contains the monoblock type cooling duct.Aluminium extrusion 152 constitutes body and contains monoblock type cooling duct 154, and these cooling ducts 154 alternately are connected with each other by the groove 156 of each end of pipe.The end of sealing ring 158 sealed tubes is to improve the whole property of cooling circuit.Porous aluminum insert 160 with outside four grooves 162 of being used as vacuum passage is by pad 164 that is fixed to pipe by screw thread or any other traditional retention mechanism and the collar 166 location (in pipe 150 is built in cooling).The pipe assembly is by any suitable external clip device, and for example bolt 168 is fastened on the board 110.This optional embodiment is owing to its pressing body parts have lower manufacturing cost and improved cooling effectiveness.

Fig. 7 represents to have second optional embodiment that difformity is used to cool off moulded component.In this arrangement, the end sealing (Reference numeral 104 among Fig. 3) between below cooling tube top and support ledge 100 is unnecessary.Porous insert 200 is screwed to cooling tube (at this moment being extruded tube 152) top by screw thread 202 or remains in the extruded tube 152 by the fastening collar 201 of any appropriate device.Usually the cover of being made by aluminium or other analog bad 201 extends internally, so that be consistent with the in-profile shape 204 at 200 beginnings of insert, the in-profile shape at 200 beginnings of insert is complementary with the part shape that is cooled or is slightly larger.The collar 201 provides the sealing of abundant usefulness, so that vacuum is applied on the porous insert, causes the accessory size expansion, thereby closely cooperates with the inner surface of insert and cool off.In some cases, part is preferably in Guan Zhongwei than loose fit when entering pipe at first.At this moment, Fig. 8 is illustrated in after the part that pine oneself is closed of packing into, and how lip packing 210 provides necessary initial sealing, so that vacuum works.

Below described the present invention strengthen cooling and part forming cooling tube structure and with method (in operating environment).Speak briefly, have by grinding or extruding according to the porous cooling tube of one of embodiment of the invention structure that the cooling tube assembly of porous cooling tube insert and optional but not preferred cooling channels makes.Can polish, paint the porous insert or other processing, to reduce porosity and higher fineness to be provided for the outside of moulded component.But the cooling channels integrally closed perhaps can form by sleeve pipe is set on the open channels that is formed at porous insert outer surface in the inside of pipe.Vacuum perhaps can be provided with the independent structure of contiguous porous insert outer surface by can grinding or extruding on the outer surface of porous insert.The blind end of cooling tube can be machined into pipe, perhaps can comprise a connector that matches with the cooling drums openend.Subsequently suitable seal is filled to any end of cooling tube, so that reach required as mentioned above pressure control.

In operation, just cooling tube is extracted and be inserted into to the working of plastics of molding from die cavity, and preferably sealed therein.Then, vacuum (or partial vacuum) is applied to its inner surface by the porous insert from its outer surface, so that the length of working of plastics and diameter expansion, thereby contact with the inner surface of porous insert.Cooling fluid circulates by the cooling duct, and from the heat absorption of porous insert, and the porous insert absorbs heat from moulded component.After finishing abundant cooling (when the outer surface of moulded component has cured and obtain enough hardness), discharge vacuum, again moulded component is released, for example, ejection is in canister.When needing, can apply normal pressure, so that moulded component is extruded from cooling tube by vacuum passage.

Thereby what described is a kind of new-type local cooling tube assembly that cools off the modified cooling of moulded component that is used for, and it provides a kind of device that the surface closely contacts between the interior cooling surface that keeps part outer surface and pipe during the cooling cycle.Cooling device preferably uses vacuum after the disclosed mold, to expand part a little, makes the contact cooling surface, and keeps in touch when part cools off, and tries hard to part is inhaled the contraction of opening cooling surface thereby clear up.

The present invention may also be described with respect to embodiments, and wherein cooling tube comprises extruded tube.The extruding cooling tube has specific use in the injection molding molding machine, although the present invention is equally applicable to any technology of being born this part of cooling after part forming by cooling tube or other similar device.For example, the present invention can be applicable in the part connecting gear of injection molding machine and blow molding die molding machine.

Fig. 9 represents cooling tube 350 sectional views of the embodiment of the invention.Cooling tube 350 preferably includes the integral tube 352 of extruding, and it has outer surface 384, be used for the inner surface 382 of working on preform 32.Cooling tube 350 comprises the cooling circuit that is used to cool off inner surface 382, and it comprises the vertical cooling duct 354 that forms by between inner surface 382 that is squeezed in pipe 352 and the outer surface 384.Cooling duct 354 is linked together with predetermined flow configuration by the interface channel 356 of arbitrary number and the cooling circuit that is connected to cooling medium source and radiator by import and exit passageway 390 and 392.Interface channel 356 is positioned at the top and the bottom of pipe 352, between outer surface 384 and inner surface 382, and extends between two or more cooling ducts 354.One side of interface channel 356 is by sealing ring 358 sealings.The sealing ring 358 that comprises sealing 359 is remained in the groove of cooling tube 350 tops and bottom by snap ring 366 or other known fastener.Cooling tube 350 also comprises the central plug 364 of inserting its bottom and being kept by shoulder 367, and central plug 364 comprises be used to the shaping inner surface 303 that supports or work on preform 32 bottoms.Central plug 364 also comprises the pressure channel 394 that is used to be connected to vacuum source, so that help preform 32 to be conveyed into cooling tube 350.The cooling medium inlet of cooling circuit and exit passageway 390 and 392 are located in the central plug 364.

Pipe 352 preferably includes the monoblock type extruded tube with vertical cooling duct 354, and it can have the cross-sectional profiles that is selected from shape of all kinds.Except that using length to be about the cutter of 4 times of diameters, it is normally unpractiaca to utilize traditional Machining Technology (for example milling) to process the passage 354 of shape as shown in figure 10, thereby the length restriction of the cooling tube that will make in this way is among a small circle unaccommodated.Therefore, extruded tube can think to have its length of monoblock type cooling duct usually greater than the extruded tube that is four times in cooling duct 354 minor diameters, perhaps thinks the extruded tube with constant substantially non-cylindrical cooling duct 354 shapes.

The cooling duct 354 that is shaped by extrusion process provides passage for cooling fluid circulation in pipe, and the inner surface 382 by pipe absorbs heat from preform 32.Cooling tube can comprise four cooling ducts 354 (as shown in figure 10).The shape of passage 354 is preferably arc elongated groove, and it shows bigger frigorimeter area than boring.The cumulative angle amount of all elongated slots is preferably greater than 180 degree, and the angular metric of each elongated slot is and the angle measurement of the concentric camber line of cooling tube with its terminal point that this terminal point limits the maximum arc length of whole elongated slot.Use this shape to be used for optimizing the heat conduction of preform 32, its result from coolant distribution along the essential part of contact preform 32 inner surfaces 382 with and near the extension and the high volumetric flow rate of being born that also results from by coolant guiding channel 53 big cross-sectional profile.In addition, the cross-sectional profile of preferred coolant guiding channel 354 also guarantees the cooling tube 350 of relative lightweight, thereby the gross weight of reduction board assembly 11, if some board assembly comprises that pipe is more than 432 (being that the board assembly has 3 groups of cooling tubes 144), this reduction is sizable so, thereby make load lighter and and then reduce the cost of used manipulator and/or plate moved quickly, therefore save some circulation timeis and cut down the consumption of energy.

In optional embodiment of the present invention, four arcuate channels shown in Figure 10 can only become two bigger arc (not shown), so that a passage is represented input, another represents output, thereby simplify interface channel 356.

Central plug 364 preferably includes and is configured as the basic shaping inner surface 303 that is complementary with the part that is cooled.Central plug 364 is preferably made from aluminum, and it acts on is the gate area of cooling preform, with the qualification vacuum passage, and is convenient to when needed the cooling duct is bonded to board 11.Pressure channel 394 preferably is located at the connector center.In one embodiment, central plug 364 is maintained at cooling tube shoulder 367 and takes out between the plate 28.Pipe securing member 368 is set, cooling tube 350 is bonded to taking-up plate 28 such as screw or bolt.The device that also can use other assembling connector 364 and cooling tube 350 is fastened to taking-up plate 28.

The cooling tube 350 typical actual sizes that are used for the optional preform 32 according to the present invention are recommended as the about 100mm of typical length, and internal diameter is about 25mm, and external diameter is about 41mm.For so optional cooling tube, cooling duct 354 preferred thickness are about 1-4mm, and girth is about 80mm, and axial length is about 100mm (preferably with the same length of pipe).Certainly, the pipe of different-diameter and length can manufacture the geometry that is fit to any preform 32, and and then makes coolant guiding channel 354 sizes have a lot of variations.Cooling tube 350 is preferably made from aluminum.

According to the present invention, use extrusion process to be shaped and comprise that the pipe 352 in cooling duct and hole, this hole dimension are preferably set to less than any predetermined working of plastics that will cool off in pipe.Extrusion process is consistent with the prior art.Therefore manage 352 and be cut to due length and molded surface, and any other required details of machining (such as interface channel 356, sealing ring 358 grooves and any cooling medium inlet/outlet or pressure channel, integrated structure etc.) subsequently.The machining central plug 364 then, and comprising increases required details (such as cooling medium 390,392 and pressure channel 394).Thereafter will have the central plug 364 that seals that is necessary and pack in the cooling tube 350, the sealing ring 358 that will have sealing 359 is again packed in the sealing ring groove on cooling tube 350 tops and the bottom, and therefore whole assembly can install at any time and take out on the plate 28.

In a preferred embodiment, the interface channel 356 of managing 352 tops can provide by the whole cooling duct of machining 354 dividing wall (not shown) at interval.In pipe 352 taking-up plate 28 ends (bottom), the similar alternate separation walls (not shown) of machining is to connect cooling duct 354 and to form and being connected of cooling fluid intake channel 390 and cooling fluid exit passageway 392.On the other hand, the cooling duct in the tube wall 354 can be connected directly to the respective apertures of taking out on the plate 28.

In the optional embodiment of the present invention (not shown), cooling tube is extruded and is defined as cylindrical tube, and it has inner surface, outer surface and at least one and is formed at cooling duct 354 on pipe 352 outer surfaces.Tubular sleeve surrounding tube 352 cooperates, thus sealing cooling duct 354.Between pipe 352 and sleeve pipe, be provided with sealing, connect so that watertight to be provided.The cooling duct can connect as described in the preferred embodiment of the present invention of front.

In the optional embodiment of the present invention (not shown), cooling tube is extruded and is defined as cylindrical tube, it has inner surface, outer surface and at least one and is formed at cooling duct 354 on the tubular sleeve outer surface, and this tubular sleeve surrounding tube 352 cooperates, thus sealing cooling duct 354.Between pipe 352 and sleeve pipe, be provided with sealing, connect so that watertight to be provided.The cooling duct can connect as described in the preferred embodiment of the present invention of front.

In operation, be similar to US4, the such cooling tube that uses described in 729,732.The inside dimension of cooling tube preferably is slightly smaller than the external dimensions of the preform that is cooled.Thereby along with prefabricated blank is shunk, its external dimensions reduces, and the vacuum that acts on whole central plug further sucks cooling tube with part, causes the outer surface of preform to keep closely cooperating or contacting with the inner surface of cooling tube.On the other hand, it is identical or big slightly with the external dimensions of the preform that is cooled that the inside dimension of cooling tube can manufacture, so that make vacuum air-flow can be inhaled the outer surface of part.

In more detail, after preform is shaped on injection molding machine, leave fixation clip 16 mold is opened by impacting movable pressing board 18, mechanical arm (carrying board assembly 11) moves between half module 12 and 14, so that cooling tube 30 can be accepted from one group of preform 32 of core 23 releases.Can utilize the suction that applies to impel preform 32 to be sent to cooling tube 30 and/or preform is remained on wherein from core 23.Board assembly 11 shifts out between half module 12,14 subsequently, and location then is so that near board assembly 11 order or be placed in selectively cooling stations, receiving terminal or the conveyer.Preform can be sent to the there then.

Except the cooling performance that improves cooling tube, on the reduction manufacturing cost, also has very big benefit.Owing to significantly reduced the machining requirement, benefited can reducing from the cost of making pipe with respect to tradition according to extruding cooling tube of the present invention.

In the optional embodiment of the present invention (not shown), the cooling tube assembly 350 of Fig. 9 can change into and comprise tubulose porous insert 452, as shown in figure 11, along the inner surface 482 that is used for vacuum forming preform 32, and because better heat-transfer interface (being the contact of large surface area and cooperation more closely) has improved the cooling effectiveness of preform 32.Porous insert 452 comprises inner surface 482 and outer surface 483, the final predetermined molded surface basically identical of the shape of inner surface 482 and preform 32, and outer surface 483 can be separated by one group of longitudinal pressure passage 466.Pressure channel 466 is provided with conduit, be used between inner surface 482 and outer surface 483, forming very low vacuum pressure district near the part of porous insert 452, thereby the loose structure by porous insert 450 is bled, contact with the shaping inner surface 482 of porous insert 452 so that will be out of shape preform 32 suctions, the vacuum forming preform 32 thus.Porous insert 452 is done such as aluminum preferably by the height Heat Conduction Material.The material of porous insert selects feature also to be, requires the porosity of loose structure preferably to be about the 3-20 micrometer range.In addition, porous insert 452 advantageously can be made in containing the operation of pressing steps.

Figure 12 illustrates another optional embodiment of the present invention, wherein is provided for the cooling tube assembly 450 of vacuum forming preform 32.Cooling tube assembly 450 comprises the pipe 454 that can be formed by existing pipe machined, but also can use extruded tube, such as pipe 352 (as shown in Figure 9).Pipe 454 comprises the insert hole 455 that holds porous insert 452, as shown in figure 11.Porous insert 452 is remained in the pipe 454 by central plug 464, and central plug 464 is contained in first and second plug holes 457,458 of pipe 454.Central plug 464 also leans against on the step between first and second plug holes 457,458 by its shoulder 467 and remains in the pipe 454.Shoulder 467 on the central plug 464 is corresponding to the step on central plug 464 diameters, and central plug 464 upper ends have narrowed portion, and it is in central plug 464 and manage between 454 second plug hole 458 and be provided with circular passage 465.Circular passage 465 couples together the pressure channel 466 of porous insert 452 and the passage 420 that is formed on the central plug 464, and passage 420 in use is connected to first vacuum passage that takes out on the plate 28 again.Central plug 464 comprises the shaping inner surface 403 that corresponds essentially to preform 32 dome portion, and it can be used for being shaped and cooling off this zone.Central plug 464 also comprises import and outlet cooling passage 490,492 and pressure channel 494, is respectively applied for second pressure channel that is connected on cooling liquid inlet and exit passageway 116,118 and the taking-up plate 28.The import of central plug 464 and exit passageway 490,492 also are connected to the cooling groove 493 that is formed on pipe 454 outer surfaces, thereby form cooling circuit.Cooling tube assembly 454 also comprises the sleeve pipe 456 that remains on pipe 454 outer surfaces.Also be provided with sealing 459 at sleeve pipe 456 with between managing 454 and, be connected with watertight so that formation is airtight between the parts that constitute pipe assembly 450 in central plug 464 with between managing 454.Pipe 454 also is included in the groove that its opening part is used to hold end sealing 404, end sealing 404 in use forms gas-tight seal between preform support ledge 100 and cooling tube assembly 450, being enclosed between preform 32 and the cooling tube assembly 450 volume that forms, thereby enable to form required low vacuum forming pressure.The critical piece of cooling tube assembly 450 is preferably made by the height thermal conducting material, for example aluminium.Now the operation that is contained in cooling tube assembly 454 on the board assembly 11 taking-up plates 28 is described.Take out plate 28 and provide cooling fluid import and the exit passageway and first and second vacuum passages, with corresponding to the aperture on the central plug 464.In use, the suction that preform 32 is applied the high flow velocities of whole pressure channel 494 sucks in the cooling tube assembly 450, as long as preform support ledge 100 is sealed is pasting end sealing 104 and stop air thus and flow, just further keep preform 32.Then by the vacuum passage on the central plug 464 420, then apply high vacuum, so the porous wall of the whole porous insert 452 of vacuum action by circular passage 465 and pressure channel 466.Air capacity between preform 32 and porous insert 452 inner surfaces 482 is found time to small part, sucks with the outer surface with preform to contact with porous insert 452.In case contact with porous insert 452, preform 32 just cools off by conduction, its heat flows to porous insert 452, pipe 454 again to circulating cooling medium by path from preform outer surface.Guarantee to keep its shape in case removed enough heat from preform 32, the just high vacuum of the whole vacuum passage 466 of release action, and apply normal pressure by pressure channel 494, to help release preform 32.

Thereby, porous insert, the various advantageous embodiments of cooling tube assembly that what described is the extruding cooling tube that is used for working of plastics, use with the cooling tube assembly that is used for the vacuum forming preform, make the method for above-mentioned parts and the method for using the cooling tube assembly, the quality that this will reduce the cost of injection-molded this pipe greatly and/or improve molding preform 32.

More than all U.S. and foreign patent documents of Lun Shuing and article are introduced in the DETAILED DESCRIPTION OF THE PREFERRED as a reference hereby.

In the accompanying drawing outline illustrate or each parts of representing by square all well-known in injection-molded technology, their special structures and operation are not the limit for implementing operation of the present invention or best mode.

Although just invention has been described for the preferred embodiment of how considering at present, should be understood that the present invention is not limited to the disclosed embodiments.For example, though the preferred embodiments of the present invention have been discussed the present invention by the porous insert, but should be understood that in fact the heat conduction that insert can be by putting on molded housing but porous coating are realized, but use insert to help making easily and assembling.Should be understood that the application of cooling technology is not limited to size or weight (for example preform), the key of qualification is to form the ability that contacts between outer surface that vacuum impels moulding article and the porous, shaped housing substrate inner surface.In addition, although cooling tube assembly of the present invention is being described aspect the injection molding molding machine, but should be understood that, the present invention is equally applicable to any technology of being born this part of cooling after part forming by cooling tube or other similar device, for example the part connecting gear between injection molding machine and the blow molding die molding machine.The scope of following claim is consistent with topmost explanation, so that comprise modification and equivalent 26S Proteasome Structure and Function that all are such.

Claims

1. one kind is used for the pipe assembly operated later on by the molded structure molding at it on than the molded plastic part of heat and toughness, and this pipe assembly comprises:

Antipriming pipe, it has the moulding inner surface that is used to hold the molded plastic part outer surface part; With

Vacuum structure, it is configured to match with described antipriming pipe, so that near inner surface, form the pressure that reduces, cause the outer surface part of the toughness molded plastic part that is positioned at the pipe assembly to contact, thereby the essential part of the outer surface part of toughness part is obtained and the corresponding substantially profile of inner surface profile when cooling with the inner surface of porous insert; And

Make the profile of inner surface correspond essentially to the outer surface part of the molded plastic part that will cool off;

Obviously prevent the outer surface part disfigurement of at least one working of plastics whereby.

2. pipe assembly according to claim 1 also comprises being configured to antipriming pipe is connected the cooling structure that enters thermal dissipating path.

3. pipe assembly according to claim 2, wherein vacuum structure comprises the body that is used to hold antipriming pipe, and at least one is configured to antipriming pipe is connected to the vacuum passage of vacuum source.

4. pipe assembly according to claim 3, wherein cooling structure comprises that at least one is located at the cooling duct on the body.

5. pipe assembly according to claim 1 also comprises a hermetically-sealed construction, and this structure is configured to match with molded plastic part, so that help to form the pressure that reduces near the antipriming pipe inner surface.

6. pipe assembly according to claim 1 also comprises body; And wherein

Antipriming pipe is the tubulose porous insert that is positioned at body, and this porous insert comprises inner surface and outer surface; And

Vacuum structure is at least one vacuum passage that is communicated with porous insert fluid, and this vacuum passage is configured to be connected with vacuum source, so that form the pressure that reduces near inner surface.

7. pipe assembly according to claim 6 also comprises cooling structure, and it is configured to a porous insert and is connected in the thermal dissipating path.

8. pipe assembly according to claim 7, wherein the inner surface of porous insert comprises blind end, it is configured as the dome portion corresponding to molded plastic part.

9. pipe assembly according to claim 8, also be included in its bottom passage, this passage is connected to vacuum or pump unit, so that with in the molded plastic part suction pipe assembly.

10. pipe assembly according to claim 9 also comprises connector, and it matches with body, to form the blind end of body.

11. pipe assembly according to claim 7, wherein the porous insert is the heat conduction porous coating that is coated onto on the inner surface of tube body.

12. pipe assembly according to claim 7, wherein the porous insert has the porosity that is about in the 3-20 micrometer range.

13. pipe assembly according to claim 7, wherein the porous insert is made by porous aluminum.

14. pipe assembly according to claim 7, wherein cooling structure is located at the cooling duct that is configured to transport cooling fluid in the body by at least one and forms.

15. pipe assembly according to claim 7, wherein cooling structure is by forming body thermal to radiator.

16. pipe assembly according to claim 7 also comprises the pad that is used at body location porous insert.

17. pipe assembly according to claim 7, wherein at least one vacuum passage is located near the body of porous insert outer surface.

18. pipe assembly according to claim 7, wherein the porous insert comprises at least one vacuum passage.

19. pipe assembly according to claim 18, wherein at least one vacuum passage provides as a plurality of passages on the porous insert outer surface.

20. pipe assembly according to claim 7 also comprises the end sealing of managing the assembly beginning, this end sealing helps to form the pressure that reduces near the inner surface of porous insert.

21. pipe assembly according to claim 7 also comprises the collar at body top, so that the porous insert is remained in the body.

22. pipe assembly according to claim 21, wherein the collar extends internally, to adapt to the inner surface of porous insert.

23. pipe assembly according to claim 21, wherein the collar also comprises lip packing.

24. pipe assembly according to claim 1 also comprises:

Pipe; And wherein

Antipriming pipe is the porous substrate of structure in pipe.

25. pipe assembly according to claim 24, wherein the porous substrate is the porous coating that is coated onto on the moulding inner surface of pipe.

26. a porous cooling chamber, it is configured to match with vacuum structure, so that held later on by the molded structure molding and cool off this goods at the moulded plastics articles than heat and toughness, this porous cooling chamber comprises:

Antipriming pipe, it is made of porous materials, and this antipriming pipe comprises (i) inner surface, and its profile reflects the shape of a moulded plastics articles outer surface part basically; (ii) vacuum syndeton;

Wherein the vacuum syndeton of antipriming pipe is configured to match with vacuum structure, so that near the antipriming pipe inner surface, form the pressure that reduces, cause the inner surface of the outer surface part contact antipriming pipe of toughness moulded plastics articles, thereby the outer surface part that makes the toughness part when cooling keeps corresponding essentially to the profile of inner surface profile, obviously prevents the outer surface part disfigurement of moulding article whereby.

27. porous cooling chamber according to claim 26, wherein the vacuum syndeton comprises the outer surface of antipriming pipe.

28. porous cooling chamber according to claim 26, wherein the vacuum syndeton comprises that at least one is formed at the passage of antipriming pipe outer surface.

29. porous cooling chamber according to claim 26, wherein antipriming pipe is configured to the porous insert, and at least a portion of this insert outer surface comprises installed surface, and this installed surface is configured to be connected with the inner surface of cooling tube.

30. porous cooling chamber according to claim 26, wherein antipriming pipe is configured to match with connector, to form the blind end of porous insert inner surface profile.

31. porous cooling chamber according to claim 28 also comprises at least one vacuum passage, this channels configuration is for being connected with at least one passage that forms at the antipriming pipe outer surface.

32. porous cooling chamber according to claim 26, wherein the inner surface of antipriming pipe comprises blind end, and it is shaped as the domed end part corresponding to moulded plastics articles.

33. porous cooling chamber according to claim 32, wherein antipriming pipe also is included in the passage that extension is run through in its blind end bottom, and this channels configuration is for to be connected with low pressure source, so that in the moulded plastics articles suction pipe assembly.

34. porous cooling chamber according to claim 26, wherein antipriming pipe has the porosity that is about in the 3-20 micrometer range.

35. porous cooling chamber according to claim 26, wherein antipriming pipe comprises porous aluminum.

36. porous cooling chamber according to claim 26 also comprises cooling structure, this cooling structure is configured to be connected with thermal dissipating path, so that the moulded plastics articles that cooling contacts with the antipriming pipe inner surface.

37. porous cooling chamber according to claim 26, wherein antipriming pipe is configured to the tubulose antipriming pipe, and this member removably is contained in behind the molding in the device.

38. an arm ending tool that is configured in injection molding machine by the manipulator supporting, this arm ending tool comprises:

Be configured to the board that is connected with manipulator, this board supports at least one moulding article cooling device;

At least one is contained in the antipriming pipe at least one moulding article cooling device, this at least one antipriming pipe has the porous inner surface, the profile of this inner surface reflects the shape than the outer surface part of heat and toughness moulding article basically, this inner surface support is by its evacuate air, so that the toughness moulding article at least one antipriming pipe expand into contact porous inner surface; With

The structure of finding time, it is configured to by at least one antipriming pipe evacuate air;

39. according to the described arm ending tool of claim 38, wherein:

Each at least one moulding article cooling device is arranged on the pipe assembly on the board;

Each pipe assembly comprises:

Described antipriming pipe has inner surface and outer surface; With

Vacuum structure, it is configured to match with antipriming pipe, so that reach by the inner surface evacuate air.

40. according to the described arm ending tool of claim 39, its intermediate tube assembly also comprises the cooling structure that is configured to insert thermal dissipating path.

41. according to the described arm ending tool of claim 40, wherein vacuum structure comprises the body that is used to hold antipriming pipe, and at least one is configured to be connected to the vacuum passage of vacuum source.

42. according to the described arm ending tool of claim 39, the number of its intermediate tube assembly is corresponding to the molded plastic part number of making in each corresponding infusion cycles of molding system.

43. according to the described arm ending tool of claim 39, the number of its intermediate tube assembly is corresponding to the multiple of the molded plastic part number of making in each corresponding infusion cycles of molding system.

44. according to the described arm ending tool of claim 39, wherein the porous insert has the porosity that is about in the 3-20 micrometer range.

45. according to the described arm ending tool of claim 44, wherein interior porous insert is made by porous aluminum.

46. according to the described arm ending tool of claim 40, wherein cooling structure by at least one be located at be configured in the body be located at board in the cooling duct that is connected of cooling channels form.

47. according to the described arm ending tool of claim 40, wherein cooling structure forms by at least one pipe component heat is bonded to the radiator that is loaded by the cooling board.

48. according to the described arm ending tool of claim 41, wherein at least one vacuum passage be configured to be located at board in vacuum passage be connected.

49. according to the described arm ending tool of claim 39, its intermediate tube assembly also comprises hermetically-sealed construction, the sealing structure is configured to match with molded plastic part, to help the forming pressure that reduces near the antipriming pipe inner surface.

50. an injection-molded mechanical hand comprises:

Arm member, it is configured to be arranged near the injection molding machine;

Be configured to the board that is connected with arm member, this board supports at least one moulding article cooling device;

At least one is configured to removably be contained in the porous member at least one moulding article cooling device, this at least one antipriming pipe has the porous inner surface, the profile of this inner surface reflects the shape of a toughness moulding article outer surface part basically, and this inner surface support is by its evacuate air, so that the toughness moulding article at least one antipriming pipe expand into contact porous inner surface; With

The structure of finding time, it is configured to by at least one antipriming pipe evacuate air.

51. an injection molding machine comprises:

Molded structure, at least one working of plastics of its molding than heat and toughness; With

At least one has the porous cooling chamber of moulding inner surface, and this inner surface is configured to be kept later on by the molded structure molding and cool off this working of plastics at least one working of plastics; With

At least one vacuum passage, they are configured to respectively provide the pressure that is lower than environment to inner surface, so that the outer surface part of at least one working of plastics contacts the inner surface at least one porous chamber; With

Make the profile of inner surface correspond essentially to the outer surface part of at least one working of plastics that will cool off;

52. according to the described injection molding machine of claim 51, wherein each cooling chamber all comprises the porous insert that places in the body.

53. according to the described injection molding machine of claim 52, wherein cooling chamber also comprises cooling structure, this cooling structure is configured to insert thermal dissipating path.

54. according to the described injection molding machine of claim 51, wherein cooling chamber also comprises hermetically-sealed construction, the sealing structure is configured to match with working of plastics, so that help to form the pressure that is lower than environment near porous cooling chamber inner surface.

55. according to the described injection molding machine of claim 51, wherein the porous cooling chamber also comprises hermetically-sealed construction, the sealing structure is configured to match with molded plastic part, so that help to form the pressure that is lower than environment near porous cooling chamber inner surface.

56. a method of utilizing the porous cooling chamber cooling described in the claim 26-37 than the molded plastic part of heat and toughness comprises step:

(i) the porous cooling chamber that molded plastic part is packed into and comprised inner surface, the profile of this inner surface corresponds essentially to the outer surface part of the molded plastic part that will cool off;

(ii) near the moulding inner surface of porous cooling chamber, form the pressure that reduces, be in contact with it, thereby obtain corresponding basically shape so that the outer surface part of molded plastic part moves to;

(iii) by thermal dissipating path heat extraction from molded plastic part, so that molded plastic part is cured to the degree that keeps its external surface shape; With

(iv) release moulded plastics articles;

57., also comprise step: when molded plastic part cools off, keep the pressure of reduction by the inner surface of porous cooling chamber according to the described method of claim 56.

58. according to the described method of claim 56, the step of wherein releasing moulded plastics articles comprises that the inner surface by the porous cooling chamber applies normal pressure.

59. moulded plastics articles, the shape of its at least a portion outer surface is limited by the inner surface of porous cooling chamber, the profile of this inner surface reflects the shape than the moulding article outer surface part of heat and toughness that will cool off basically, and this moulded plastics articles is shaped by following operation;

(i) the toughness moulded plastics articles porous cooling chamber of packing into;

(ii) by a plurality of intermediate space moulded plastics articles ambient air of finding time, construct along porous cooling chamber inner surface in these gaps, so that the outer surface part of moulded plastics articles moves to the contact moudling inner surface, thereby acquisition corresponds essentially to the shape of moulding inner surface; With

(iii) by thermal dissipating path heat extraction from moulded plastics articles, so that abundant curing mold plastic products, thereby keep the profile of moulded plastics articles;

Leng Que moulded plastics articles outer surface part presents basically the surface smoothness corresponding to porous cooling chamber intermediate space whereby.

60. according to the described moulded plastics articles of claim 59, wherein the porous cooling chamber is formed by the porous substrate, its moulding inner surface has the intermediate space in the 3-20 micrometer range.

61. according to the described moulded plastics articles of claim 59, wherein moulded plastics articles is a preform.

62. according to the described moulded plastics articles of claim 59, wherein moulding article comprises preform.

63. a cooling tube is used to cool off the part of the injection molding product that wherein holds, this cooling tube comprises:

The extruding body, it has inner surface, outer surface and a plurality of placing therebetween along the vertical cooling duct of arranging of body;

Be configured in the interface channel between the cooling duct, the cooling duct is interconnected at least one cooling circuit;

Be configured in the sealing of each end of body, with the sealing cooling duct;

Be configured in the entrance and exit in the body, be used at least one cooling duct; With

Place the connector of body far-end;

The inner surface of body and the inner surface machine that is configured on the connector add the formation forming cavity, and this forming cavity is consistent basically with the profile of moulding article part outer surface.

64. according to the described cooling tube of claim 63, the length that wherein a plurality of cooling ducts have is four times in its minor diameter at least.

65. according to the described cooling tube of claim 64, wherein the cross section that has of pipe comprises a plurality of cooling ducts, and these channels configuration archwise elongated slots.

66. according to the described cooling tube of claim 65, wherein the cumulative angle amount of all elongated slots is greater than 180 degree.

67. according to the described cooling tube of claim 64, wherein connector comprises that cooling duct inlet and cooling duct export, so that coolant source and outlet are connected to cooling circuit entrance and exit on the body.

68. according to the described cooling tube of claim 64, wherein connector comprises the pressure channel that runs through extension from the inner surface bottom, is used for connection chamber and controlled vacuum structure, so that help the moulding article in introducing and the release chamber.

69. according to the described cooling tube of claim 64, its lumen is configured to reach the outer surface close fit with moulding article.

70. according to the described cooling tube of claim 64, wherein cooling tube is configured to use for the arm ending tool.

71. according to the described cooling tube of claim 70, wherein the arm ending tool comprises: be used for being installed to the board on the molding system manipulator; With

At least one places the lip-deep cooling tube of board.

72. according to the described cooling tube of claim 71, wherein the number of cooling tube assembly is corresponding to the moulding article number of making in the molding system circulation.

73. according to the described cooling tube of claim 71, wherein the number of cooling tube assembly is corresponding to the multiple of the moulding article number of making in the molding system circulation.

74. one kind according to each describedly is used for method that cooling tube is shaped among the claim 63-73, comprises step:

(i) extruding body, this body have inner surface, outer surface and a plurality of placing therebetween along the vertical cooling duct of arranging of body;

(ii) machine adds inner surface of tube body, makes its outer surface with moulding article consistent basically;

(iii) between the cooling duct, construct interface channel; With

Connector (iv) is shaped.

75. according to the described method of claim 74, wherein the step of extruded tube comprises the cooling duct is squeezed into arc elongated slot.