CN101898401A

CN101898401A - Be used to make the method for compound or hybrid structure

Info

Publication number: CN101898401A
Application number: CN2010101903159A
Authority: CN
Inventors: P·艾格; H·纳德希恩; G·施泰因比希勒; H·蔡德尔霍费尔
Original assignee: Engel Austria GmbH
Current assignee: Engel Austria GmbH
Priority date: 2009-05-27
Filing date: 2010-05-26
Publication date: 2010-12-01
Also published as: DE102010019625A1; JP5596413B2; JP2010274653A; CN103358462A; CN103358462B; AT11396U1; JP2013144463A; DE102010019625B4; JP5705910B2

Abstract

The present invention relates to a kind of method that is used to make the compound or hybrid structure that comprises at least a thermoplastic component, wherein, adopt injection machine (1) with at least one rotary table plate (6,6 ').

Description

Be used to make the method for compound or hybrid structure

Technical field

The present invention relates to a kind of method that is used to make the compound or hybrid structure that comprises at least a thermoplastic component.

Background technology

Be used to make composite construction or composite according to the known diverse ways of prior art but also be used for making and mix (Hybride) structure.In composite, by material in conjunction with or shape is sealed or the combination of the two couples together various material.For example can enumerate fibrous composite, in described fibrous composite, fibre fabric or knitted fabric mix with plastics, so that obtain a kind of composite construction as final effect, this composite construction has improved characteristic.In hybrid structure, made up system with different technologies.Described hybrid structure is the plastic/metal impurity very commonly, has wherein made up the advantage of plastics and metal material.

The method majority of being made composite construction or hybrid structure by known being used to of prior art is a multiple-step form, and this can cause high cost and work to expend.

Summary of the invention

Therefore therefore, the objective of the invention is to, a kind of method that starts described type is provided, having reduced work in the method and having expended and also reduced cost consumption.Described purpose realizes by a kind of method that starts described type, the method is characterized in that, has adopted the injection machine with at least one rotary table plate.

The injection machine that use has at least one rotary table plate makes and a plurality of method steps can be merged on this injection machine, thereby can make up various method step in the original place apace.

Can set in one embodiment, have in employing under the situation of injection machine of at least two rotary table plates and at least three injection station, by two moulded parts of the first and second injection station injection mouldings, these two moulded parts point to mutually after the rotary table plate rotation and interconnect by the 3rd injection station.Adopt two rotary table plates and three injection station to make and not only can make single moulded parts apace, but also described single moulded parts is directly interconnected in next procedure.This can set, with insert, function element and/or strengthen among pre-aligned in described injection station one of structure preferably.Set this moment in the preferred case, and after the rotary table plate rotation and before two moulded parts link to each other, described insert, preferably function element and/or reinforcement structure are positioned between two moulded parts.

On the angle that process economics is learned advantageously, after the rotary table plate rotation and preferably with the moulded parts of two injection mouldings be connected while, the new moulded parts of injection moulding in first and second injection station.

Can set in another embodiment, have in employing under the situation of injection machine of at least one rotary table plate and at least one injection station, insert in the die joint between rotary table plate and another die holder plate and strengthen structure, for example fibrofelt compound (Fasergelege), fibre fabric, pre-impregnated article or their combination, and after the rotary table plate rotation, in injection station, it is covered injection.Here can also set, before covering injection, in injection machine, make and strengthen the structure preform.Optional in addition or additionally can set, before covering injection, in injection machine, preheat strengthening structure.

In another form of implementation of the present invention, can set, perhaps by adopting another injection station or covering injection in both sides to strengthening structure by the revolving-turret plate.

Can set in one embodiment, in injection machine, go out insert by rotary table plate and another die holder plate and/or stamping tool are closed up mutually.Punching course can be undertaken by the part of mould or mould, is perhaps undertaken by the additional stamping tool that is provided with.But this stamping tool also can interact with the part of mould, thereby stamping tool and mould common implementing punching course.

Can set in another embodiment, on a film bottom, will strengthen structure and import injection machine.

Can set in all embodiments, injection machine has two die joints, and preferably makes structural detail distortion and with plastics it is covered injection in another die joint by hydraulic pressure in one of them die joint.

Can set in addition, injection machine has at least one rotary table plate that has two die joints, in the wherein said die joint each all is equipped with an extruder and a worm screw injecting unit, thereby realizes the manufacturing of compound and/or hybrid structure by direct compounding (Compoundierung).

Can set in addition, injection machine has at least one and has four cube turntables (Drehw ü rfel) of station of 90 ° that stagger mutually.Two stations in the described station can constitute injection station, and can be by operating means input insert in a station.Set in a station, a station is configured to take out station or liftout (Auswerf) station.Can set in another embodiment, manufacturing compound or hybrid structure realizes by in a cavity of injection machine at least a monomer being carried out polymerized in-situ at least in part, wherein, when polymerization begins, by dwindling cavity build-up pressure in cavity.Can set in addition, manufacturing compound or hybrid structure is undertaken by applying an enamelled coating at least in part.Verified for example PUR is favourable as the polymerized in-situ product and/or as the enamelled coating that is applied.

The moulded parts of making in intermediate steps is half shell preferably.

Usually proof is advantageously strengthened structure (53) and is selected from following group: fibrofelt compound, fibre fabric, pre-impregnated article (Prepreg) or their combination.Here, advantageously set, the fiber of fibrofelt compound and/or fibre fabric is selected from following group: glass fibre, basalt fibre, carbon fiber or their mixture.

Description of drawings

Other advantages of the present invention and details illustrate in conjunction with the accompanying drawing and the accompanying drawing of back.

Fig. 1 illustrates the injection machine that is used to implement the method according to this invention,

Fig. 2 a and 2b are illustrated in the embodiment that is used to carry out described method under the situation that adopts two rotary table plates, and resulting composite construction or hybrid structure,

Fig. 3 a and 3b are illustrated in and are used to carry out described method under the situation that adopts a rotary table plate and have the embodiment of predeformation and the compound and hybrid structure that is obtained,

Fig. 4 is illustrated in the embodiment that is used to carry out described method under the situation that adopts a rotary table plate, wherein preheats strengthening structure,

Fig. 5 is illustrated in two method steps that are used to carry out described method under the situation that adopts a rotary table plate and a stamping tool,

Fig. 6 a and 6b are illustrated in two method steps of the embodiment that is used to carry out described method under the situation of the injecting unit that adopts a rotary table plate and two L shaped layouts,

Fig. 7 a and 7b are illustrated in the embodiment that is used to carry out described method under the situation that adopts two rotary table plates and a stamping tool,

Fig. 8 a and 8b are illustrated in the embodiment that is used to carry out described method under the situation that adopts a rotary table plate, wherein are provided with fluid pressure predeformation (device),

Fig. 9 a and 9b are illustrated under the situation that adopts a rotary table plate and a plurality of twin worm extruders and are used to carry out the embodiment of described method and the compound or hybrid structure that is obtained,

Figure 10 is illustrated in the embodiment that is used to carry out described method under the situation that adopts a cube of turntable,

Figure 11 a and 11b are illustrated under the situation of the feeding mechanism that adopts a rotary table plate and a monomer and are used to carry out last embodiment of described method and the compound or hybrid structure of making thus.

The specific embodiment

An injection machine 1 shown in Figure 1, this injection machine can be used in the method according to this invention.Here this injection machine 1 has closing unit 2 and a plasticizing and an injecting unit 3 with form in the known manner.Described closing unit 2 comprises a fixing die holder plate 4, and this die holder plate is arranged on the framework 9 regularly.Be provided with the die holder plate 5 of an activity in addition, this die holder plate for example can be along post 10 rectilinear motions on the slide block on the slide rail shown in Fig. 2 a 31 7 one.The moving through that the cylinder 16 that travels that has piston-cylinder unit leaves and carry out of movable die holder plate 5 towards the overlay 4 of movable (fixing).For the die holder plate 5 with described activity is fixed in the position of hope, on post 10, be provided with locking mechanism 14, described locking mechanism shape is sealed and/or rub and die holder plate 5 is fixed on the post 10 sealedly.Be provided with a rotary table plate 6 in addition, this rotary table plate can be point-blank motion between the die holder plate 5 of activity and fixing mould covering portion 4.Here rotary table plate 6 is arranged on the slide block 8 in the slide rail 31.In addition, be provided with the cylinder 16 that travels that comprises piston-cylinder unit, be used for leaving and towards the rectilinear motion of fixing die holder plate 4 along post 10.Rotary table plate 6 additionally has rotary unit 61, as turntable, can carry out along the rotation of rotation a thus.Die

holder plate

4,5 and rotary table plate 6 are arranged on the framework 9.Be provided with the pressure pad 13 that is used to support fixing die holder plate 4 in addition.Closing unit 2 has die joint A and B.

Plasticizing and injecting unit 3 constitute equally as known per se, thereby only carry out brief explanation here.Plastic grain can be transported in the plasticizing cylinder 18 by filling funnel 17, the plasticizing worm screw here is set, described plasticizing worm screw makes the plastic grain plasticizing.By a nozzle 23 and an injection movement, the plastics of plasticizing can be expelled in the mould 11.In order to plastify and ensuing injection, be provided with a driver element 24, described driver element will plastify worm screw on the one hand and place and rotatablely move, and implement rectilinear motion on the other hand to inject.This drive unit 24 can for example constitute fluid power as known per se.Plasticizing and injecting unit 3 are arranged on the framework 19.On the die holder plate 5 of activity, be provided with another plasticizing and injecting unit 20.This plasticizing and injecting unit are arranged on the framework 22, and it links to each other with the die holder plate of fixing 4.Leave or during towards 4 motions of fixing die holder plate, injecting unit 20 is followed and carried out this motion at the die holder plate 5 of activity.Here injecting unit 20 has filling funnel 21 and the plasticization unit 25 that is used for plastic grain equally, and this plasticization unit constitutes injecting unit simultaneously.The plastics of plasticizing can be expelled in the mould 12 by nozzle 26.

Can see two

moulds

11,12 in an illustrated embodiment, these two moulds respectively by two half modules 11 ', 11 " or 12 ', 12 " constitute.Because movable die holder plate 15, rotary table plate 6 be along the relative motion of post 10 towards fixing die holder plate 4 (or leaving fixing die holder plate), corresponding half module 11 ', 11 " or 12 ', 12 " are closed and be formed for die cavity with the thermoplastic component of plastifying state injection.This moment can be at first injection in first mould 11 of closure, then opening mould 12 after, make rotary table plate around rotation a Rotate 180 °, thus half module 11 " half module 12 of present arrival front in plan ' the position.By the closed half module 11 now of mould " and 12 " being rabbeted mutually and being formed a new mould, should point out at first that wherein the moulded parts that forms keeps being arranged on half module 11 " to be gone up and be introduced in the new mould in first circulation.Can inject another kind of thermoplastic plastic fraction this moment by injecting unit 20, and form the compound or hybrid structure of finishing 50.In addition, before one in can described two injection process, insert insert in one in two moulds 11,12.Certainly can in

mould

11 and 12, inject simultaneously.Promptly set here, after rotary table plate 6 rotations, each moulded parts of injection moulding simultaneously.Plasticizing and injecting unit 3 and mould 11 form an injection station here, and plasticizing and injecting unit 20 and mould 12 another injection station of formation.

Fig. 2 a illustrates an embodiment, this embodiment corresponds essentially to the embodiment of Fig. 1, just now matched moulds side 2 except fixing die holder plate 4 and movable die holder plate 5, can also on slide rail 31, be provided with rectilinear motion first rotary table plate 6 and second rotary table plate 6 '.In this embodiment, be provided with three die joint A, B, C.Be additionally provided with one the 3rd plasticizing and injecting unit 30, described the 3rd plasticizing and injecting unit are arranged with respect to first plasticizing and injecting unit or with respect to second plasticizing and injecting unit 20 roughly L shapedly.Here the 3rd plasticizing and injecting unit 30 are arranged on the rotary table plate 6 and follow its motion.For the sake of clarity, do not draw closing unit 2 and also have all the other members on plasticizing and the injecting

unit

3,20.

Here should point out that each Reference numeral all is unified in institute's drawings attached, therefore can each Reference numeral be described once more for each accompanying drawing.This can be with reference to corresponding previous drawings explanation.

In first method step, make each single

die holder plate

4,5 and rotary table plate 6,6 ' mutually move and close up, make mould 11,12,121 (by half module 11 ', 11 ", 12 ', 12 ", 121 ', 121 " constitute) closure, and form the mould of corresponding hope.Inject the thermoplastic component that has plastified in mould 11 1 sides by plasticizing and injecting unit, thereby in the step of back, form the moulded parts 51 (seeing Fig. 2 b) of half hull shape formula.Can on mould 12, form moulded parts 52 simultaneously by injecting unit 20.After

moulded parts

51,52 is shaped, by being moved away, each single Die and

mould plate

5,6,6 ' mutually opens each single mould 11,12,121, wherein moulded parts 51 is retained in half module 11 " on, and moulded parts 52 is retained in half module 12 " on.Then, make rotary table plate 6,6 ' along its rotation a, b Rotate 180 °, thus in the zone at center half module 12 ' with 11 " mutually towards.Insert 43 can be inserted in the mould of new formation by operating means 60.Then make each single mould closed again and plastics are expelled to new via pipeline 31 and " in and the 12 ' mould that constitutes, thereby moulded

parts

51,52 is interconnected by half module 11 by an injecting unit 30 that is arranged on regularly on the rotary table plate 6.Insert 53 is connected with

moulded parts

51,52 simultaneously.It is contemplated that the employing function element in the illustrated case as insert 53, as antenna (but also can be responder, RFID etc.).Can take out the compound or hybrid structure of finishing 50 by opening mould.

In Fig. 3 a, mould 12 constitutes a preform unit simultaneously now, and the insert 53 that utilizes operating means 60 to insert is pre-formed into performing member 56 by institute's applied pressure and optional the intensification.Open mould, after rotation a revolving-turret plate 6, be retained in half module 12 ' in performing member can insert in the mould of new formation, and then use from the plasticizing and the thermoplastic component of injecting unit 3 and cover injection.

Fig. 4 illustrates the embodiment that only has a rotary table plate 6 and only have a plasticizing and injecting unit 3 now.Under open mode, insert 53 is placed into half module 12 in mould 12 by operating means 60 " on.Mould 12 has a heater 70, and this heater is in advance to insert 53 heating.Insert 53 is so-called prepreg (being also referred to as organic plates sometimes) in the preferred case.This is the plastics that a kind of fiber is strengthened in the preferred case, for example the thermoplastic of glass fibre reinforcement.Therefore insert 53 constitutes strengthens structure.Under concrete situation, insert 53 is a kind of prepregs with plastics of glass fibre reinforcement, and described prepreg is inserted in the mould 12 and utilized heater 70 to heat, thereby makes plastics softening.In the mould 12 of closure, heat.Suppressing with optional in the heating of the inside of mould 12 Afterwards, reopen mould 12, make rotary table plate 6 rotation, wherein, insert 53 under heated state half module 12 ' on and during in closure and the mould that half module 11 ' formation is new.Then can by plasticizing and injecting unit 3 with the plastics of plasticizing be expelled to by half module 11 ', in the 12 ' mould that constitutes and forms compound and hybrid structure 50 accordingly.

Another embodiment shown in Figure 5 is wherein inserted an insert 53 like this, and promptly by 71 pairs one material bands 53 of stamping tool ' effect, described stamping tool is rabbeted at half module 12 " a projection 72 on, make material band 53 ' a part swept away.Stamping tool 71 is at half module 12 " on advance, touch on the backstop of described projection until it.This moment insert 53 from material band 53 ' separate and be transferred to mould 12 '.After opening mould, make rotary table plate 6 rotation, and transfer in the position on the right of plan, and the mould closure after by half module 12 ' and 11 ' joint be enclosed in the mould of formation thus.In this mould, inject thermoplastic plastic fraction and form the compound or hybrid structure of finishing 50 by plasticizing and injecting unit 3 at last.

Fig. 6 a and 6b illustrate the closely similar scheme with the embodiment of Fig. 4, wherein also insert an insert 53 by an operating means 60 in mould 12.Can inject thermoplastic plastic fraction by the plasticizing and the injecting unit 30 that are arranged on the rotary table plate 6 to insert from a side.This is shown in Fig. 6 b.Opening mould 12, revolving-turret plate 6 and again after the closure, can on second side of moulded parts 51, inject by plasticizing and injecting unit 3.Formed compound and hybrid structure 50 wherein, can be seen two 51,52 and embeding layers 53 between these two plastic layers of plastic layer in the outside shown in the bottom-right diagram.Here insert also can be prepreg or other materials.

Fig. 7 a illustrates the assembled scheme of the embodiment of Fig. 5 and 6a and 6b, wherein at first utilize stamping tool 71 from material band 53 ' go out insert 53, and it is inserted in first mould 12.After first rotary table plate 6 ' rotation, can inject by a side of plasticizing and 30 pairs of inserts 53 of injecting unit.After reopening mould, revolving-turret plate 6 and making the mould closure, can also surround injection by plasticizing and injecting unit 3 to second side of insert 53.

Fig. 8 a and 8b illustrate another embodiment that is used to implement described method.Here in first mould, import an insert 53 by operating means 60.In mould, can be formed on the shape shown in Fig. 8 b left side by insert 53 by the so-called inner high voltage method of forming by fluid.Revolving-turret plate 6, again closed and inject by plasticizing and injecting unit 3 after, can make the illustrated compound or hybrid structure of finishing 50 according to Fig. 8 b the right.

At a flexible program of the present invention shown in Fig. 9 a and the 9b, wherein, except the plasticizing and injecting unit 3 and plasticizing and injecting unit 20, be additionally provided with twin

worm extrusion equipment

99,99 '.Described twin worm extrusion equipment is used to realize direct compounding.Here make the plasticizing of thermoplastic component in a conventional manner and/or additionally make another kind of thermoplastic component plasticizing by plasticizing and injecting unit 3 with annexing ingredient by twin worm extruder 99.Be transported in the plasticizing cylinder of the plasticizing of after mould 11 closures, injecting and injecting unit 3.Similarly situation also be applicable to injecting unit 20 and set twin worm extrusion equipment 99 to it '.The manufacturing of compound or hybrid structure 50 (may also have insert 53) with the explanation of Fig. 1 is carried out similarly.One unshowned accumulator/hopper (Shotpot) can also additionally be set, even thus by plasticizing and during injecting

unit

3,20 injects, twin worm extrusion equipment 99,99 ' also can plastify.

A form of implementation shown in Figure 10, wherein have one cube of turntable 6, rotation a is a level in this cube turntable, promptly perpendicular to plan, wherein cube turntable 6 has four positions or station I, II, III, IV, and these positions or station are spaced from each other 90 ° respectively.But can set equally, rotation a vertically is provided with, as among each embodiment of front.But for the sake of clarity, selected view shown in Figure 10, can see each single station I, II, III, IV better like this.The first station I has stipulated to be used for the injection moulding process of first moulded parts of half hull shape formula.After opening mould, the turntable half-twist and by operating means 60 with an insert 53 bring into half module 11 ' in (station II).At half-twist (station III) again afterwards, mould is closed again, and injects by plasticizing and injecting unit 20.Reopen mould and make turntable or cube turntable half-twist after, can take out the compound or hybrid structure of finishing by taking out station (station IV).Taking out station is a liftout station.

The difference of the embodiment of Figure 11 a and 11b and the embodiment of Fig. 1 only is, except plasticizing and injection device 20, additionally also is provided with a device 93 that is used for also adding the plastics for the treatment of polymerization.Here at least a monomer is introduced in the cavity, and in cavity, carried out polymerization.When polymerization begins, in cavity, set up the pressure that improves by dwindling cavity.Here for example can apply thin enamelled coating, for example the PUR lacquer.Can also introduce thermoplastic plastic fraction by plasticizing and injecting unit 20 in addition.Preferably, for example apply described thermoplastic plastic fraction as thin layer by compression molding.

Except Figure 10, in each embodiment, can set, rotary table plate 6,6 ' rotation a, b (as among Figure 10) vertically but flatly is set.

Claims

1. be used to make the method for the compound or hybrid structure that comprises at least a thermoplastic component, it is characterized in that, adopt injection machine (1) with at least one rotary table plate (6,6 ').

2. method according to claim 1, it is characterized in that, have in employing under the situation of injection machine (1) of at least two rotary table plates (6,6 ') and at least three injection station, by two moulded parts of the first and second injection station injection mouldings (51,52), these two moulded parts point to mutually after rotary table plate (6,6 ') rotation and interconnect by the 3rd injection station.

3. method according to claim 2 is characterized in that, with insert (53), function element and/or strengthen among structure pre-determined bit in described injection station preferably.

4. method according to claim 3, it is characterized in that, after rotary table plate (6,6 ') rotation and before two moulded parts (51,52) link to each other, with described insert (53), preferably function element and/or reinforcement structure are positioned between two moulded parts (51,52).

5. according to claim 2 or 3 described methods, it is characterized in that, after rotary table plate (6,6 ') rotation and preferably with two the moulded parts of injection moulding (51,52) be connected while, the new moulded parts (51,52) of injection moulding in first and second injection station.

6. according to each described method in the claim 1 to 5, it is characterized in that, have in employing under the situation of injection machine (1) of at least one rotary table plate (6,6 ') and at least one injection station, insert in the die joint (A, B, C) between a rotary table plate (6,6 ') and an other die holder plate (4,5) and strengthen structure (53), for example fibrofelt compound, fibre fabric, pre-impregnated article or their combination, and after rotary table plate (6,6 ') rotation, in injection station, described reinforcement structure is covered injection.

7. method according to claim 6 is characterized in that, before covering injection, carries out preform to strengthening structure (53) in injection machine.

8. according to claim 6 or 7 described methods, it is characterized in that, before covering injection, in injection machine (1), preheat strengthening structure (53).

9. according to each described method in the claim 1 to 8, it is characterized in that, by adopting another injection station or covering injection in both sides to strengthening structure (53) by revolving-turret plate (6,6 ').

10. according to each described method in the claim 2 to 9, it is characterized in that, in injection machine (1), go out insert (53) by a rotary table plate (6,6 ') and an other die holder plate (4,5) and/or stamping tool (71) are closed up mutually, preferably strengthen structure.

11. according to each described method in the claim 3 to 10, it is characterized in that, on a film bottom, will strengthen structure (53) and import injection machine (1).

12. according to each described method in the claim 1 to 11, it is characterized in that, injection machine (1) has two die joints (A, B, C), and preferably makes a structural detail (53) distortion and with plastics structural detail is covered injection in another die joint (A, B, C) by fluid pressure, for example hydraulic pressure among of wherein said die joint (A, B, C)

13. according to each described method in the claim 1 to 12, it is characterized in that, injection machine (1) has at least one rotary table plate that has two die joints (A, B, C) (6,6 '), in the wherein said die joint (A, B, C) each all is equipped with an extruder (99,99 ') and a worm screw injecting unit, thereby realizes the manufacturing of compound and/or hybrid structure (50) by direct compounding.

14., it is characterized in that injection machine (1) has at least one and has four cube turntables (6) of station (I, II, III, IV) of 90 ° that stagger mutually according to each described method in the claim 1 to 13.

15. method according to claim 14 is characterized in that, two stations in the described station (I, II, III, IV) constitute injection station.

16. according to claim 14 or 15 described methods, it is characterized in that, in a station, can import insert (53) by an operating means (60).

17., it is characterized in that a station is configured to take out station or liftout station according to each described method in the claim 14 to 16.

18. according to each described method in the claim 3 to 17, it is characterized in that, strengthen structure (53) and be selected from following group: fibrofelt compound, fibre fabric, pre-impregnated article or their combination.

19. method according to claim 18 is characterized in that, the fiber of fibrofelt compound and/or fibre fabric is selected from following group: glass fibre, basalt fibre, carbon fiber, natural fiber or their mixture.

20. according to each described method in the claim 1 to 19, it is characterized in that, manufacturing compound or hybrid structure (50) is undertaken by in a cavity of injection machine (1) at least a monomer being carried out polymerized in-situ at least in part, wherein, when polymerization begins, by dwindling cavity build-up pressure in cavity.

21., it is characterized in that manufacturing compound or hybrid structure (50) is undertaken by applying enamelled coating at least in part according to each described method in the claim 1 to 20.

22., it is characterized in that polymerized in-situ product or enamelled coating have PUR according to claim 20 or 21 described methods.