CN100503212C - Preliminary forming apparatus, preliminary forming method and main forming method using the apparatus, and film with picture - Google Patents
Preliminary forming apparatus, preliminary forming method and main forming method using the apparatus, and film with picture Download PDFInfo
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- CN100503212C CN100503212C CNB038256754A CN03825675A CN100503212C CN 100503212 C CN100503212 C CN 100503212C CN B038256754 A CNB038256754 A CN B038256754A CN 03825675 A CN03825675 A CN 03825675A CN 100503212 C CN100503212 C CN 100503212C
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Abstract
An object of the present invention is to provide a pre-formation apparatus capable of making a pre-formation with highly dimensional accuracy between a film three-dimensional shape and an original design on a film, a pre-formation method and a main formation method utilizing the apparatus, and a printed film therefor. A preliminary forming apparatus has a vertical clamp member (68j) for sandwiching and holding a film with picture supplied by a film-supplying device and having a through hole (68a), and has a heating device (70) for heating the film with picture, being approachable to and departable from a preliminary form portion (F). A preliminary forming die (80) for preliminary forming that is performed through the through hole (68a) and a film die-cutting device for die-cutting that is performed after the preliminary forming are approachable to and departable from the preliminary form portion (F). The preliminary forming die (80) is provided with a convex die that is brought in contact with a plasticized film with picture and a concave die for receiving the convex die to perform vacuum forming. A pitch detection portion (68n') for detecting a film mark (M1) is provided within one pitch width with respect to a film flow direction (X) of a film (4) with picture which film is opposed to the preliminary form portion (F).
Description
Technical field
The present invention relates to a kind of pre-forming device, this pre-forming device is used for the film that preform has pattern, and this film is used to inlay shaping and mould internal shaping etc.More particularly, the film that relates to pre-forming device, the preliminary shaping method that adopts this pre-forming device, main forming method and have pattern.This pre-forming device comprises film-supplying device, hold assembly, heater, preform mould and film stripper apparatus up and down.Above-mentioned film-supplying device, the membrane supplying that has pattern to carrying out preformed preform portion.Above-mentioned hold assembly is up and down seized the film that has pattern on both sides by the arms in preform portion, and is had through hole.Above-mentioned heater can with respect to preform portion near or remotely move, and, before preform, the film of being held under the arm by hold assembly up and down that has pattern is heated, make this film that has pattern in the plasticization of above-mentioned preform portion.Above-mentioned preform mould is approaching or remotely move with respect to preform portion, and by above-mentioned through hole with the above-mentioned film preform that has pattern.Above-mentioned film stripper apparatus, after the above-mentioned film that has a pattern is by preform with this film demoulding.
Background technology
The manufacturing process of inlaying the usefulness film that is shaped before, the method that for example has TOHKEMY 2000-52416 communique to disclose.In the technology of this communique record, between preform is with mould and anchor clamps, will insert one by one film hold under the arm into, heat film with heater, carry out vacuum forming, be enclosed in that the motor feels hot in the mould body generate heat by making, carry out the demoulding of film.But when only carrying out vacuum attraction for die, film produces distortion partially, is not easy to keep the dimensional accuracy of formed products.
For this reason, the present inventor holds under the arm into film with hold assembly in advance it is carried out preheating as putting down in writing in No. 02/078973 international patent application of international publication number WO, and punch is risen, and being heated the film that softened, thereby successfully reduced the inclined to one side distortion of jack-up part towards die jack-up.But, since the pitch measuring that film flows than preform portion more to the membrane supplying side away from, so, can only improve the dimensional accuracy of formed products and Thinfilm pattern limitedly.
Mention reference, among Fig. 2 of Japanese kokai publication hei 1-237110 communique, length direction sensor 92 is located at technology on the dynamic model but disclosed.But, in the 3rd page of this communique, can be but put down in writing also with the technology beyond length direction sensor 92 ' the be located at dynamic model, but do not address for the error that the position relation with dynamic model causes.Originally this technology is the mould internal shaping that does not carry out the film preheating, shown in Figure 1 as this communique, and not by anchor clamps etc. under the fixing state, punch 15 contacts suddenly with film at film.Therefore, in this existing technology, exist the problem before the precision that the present invention will solve, but not openly the application's goal of the invention, structure.
In view of the present situation of this above-mentioned prior art, the purpose of this invention is to provide and with the pattern of film and to be shaped as pre-forming device, the preliminary shaping method that adopts this pre-forming device, main forming method that the dimensional accuracy of film three-dimensional shape is shaped accurately and the film that has pattern that is used for this pre-forming device and these methods.
Summary of the invention
In order to achieve the above object, pre-forming device of the present invention has film-supplying device, hold assembly, heater, preform mould and film die lifter up and down; Film-supplying device the membrane supplying that has a pattern to carrying out preformed preform portion; Hold assembly is being seized on both sides by the arms in above-mentioned preform portion and is above-mentionedly being had the film of pattern and have through hole up and down; Heater can/liftoff move approaching with respect to above-mentioned preform portion, and above-mentionedly have the film heating of pattern to what seized on both sides by the arms by hold assembly up and down and make its plasticization in above-mentioned preform portion before preform; The preform mould can move with respect to preform portion/remotely, and by above-mentioned through hole with the above-mentioned film preform that has pattern; The film stripper apparatus is used for after will having the film preform of pattern the film demoulding; It is characterized in that, above-mentioned preform mould has had with plasticization above-mentionedly has the contacted punch of film of pattern and accepts this punch and carry out vacuum-formed die, in the spacing width during shaping on the direction of travel of relative with the above-mentioned preform portion above-mentioned film that has a pattern, disposing the spacing test section that is used to detect the film mark, between the pair of rolls of the above-mentioned film that has a pattern of above-mentioned preform portion upper support and above-mentioned preform portion, be provided with and detect the test section that crawls be imprinted on the anti-line that crawls on the above-mentioned film that has a pattern, part at above-mentioned film-supplying device is provided with the anti-snake stabiliser of being controlled by the 2nd test section, the extension of the above-mentioned test section that crawls on the film direction of travel in the above-mentioned film that has a pattern is covered with by above-mentioned hold assembly up and down.
According to this feature, because a spacing test section that detects the film mark, be configured in the spacing width on the film direction of travel of the film that has pattern relative with preform portion, so, even film has some elongations etc., also can reduce the dislocation of pattern with respect to finishing die.When under this state, the film that has a pattern is when hold assembly is seized on both sides by the arms up and down, and this has the film and the finishing die fixed relative position in the horizontal direction of pattern.When make plasticization the film that has pattern when contacting with punch, owing to make punch be contacted with optimal pattern position, have the shaping of the film of pattern from it, so, with compare before, can eliminate significantly owing to the pattern that produces that contacts with punch is out of shape partially.Owing to accept above-mentioned punch at this state lower cavity die and carry out vacuum forming, so the dimensional accuracy of pattern and finishing die is high.
Because between the pair of rolls of the above-mentioned film that has a pattern of above-mentioned preform portion upper support and above-mentioned preform portion, be provided with and detect the test section that crawls be imprinted on the anti-line that crawls on the above-mentioned film that has a pattern, part at above-mentioned film-supplying device is provided with the anti-snake stabiliser of being controlled by the 2nd test section, therefore, can further reduce to have the position skew of film on width of pattern.Particularly, in the present invention, because residual hardly protuberance on the remaining film after shaped portion is by the demoulding, therefore, anti-snake stabiliser plays a role easily effectively, and width ground dimensional accuracy significantly improves than the existing grade that is shaped of inlaying.
Have, the extension of the above-mentioned test section that crawls on the film direction of travel in the above-mentioned film that has a pattern is covered with substantially by above-mentioned hold assembly up and down again.
Preferably, to a lateral deviation vertical the spacing test section that detects the film mark is being set independently from the position of above-mentioned preform mould and with respect to the preform mould with above-mentioned film direction of travel.
Particularly, also can be configured in substantial middle in the above-mentioned spacing width to above-mentioned spacing test section.According to this structure, can suppress the site error that causes by the elongation of the film that has pattern etc. to greatest extent.
In addition, the position of above-below direction at least of preferably above-mentioned spacing test section is with respect to fixing in the above-mentioned pair of rolls that has the film of pattern of above-mentioned preform portion's supporting.Because film is being supported by pair of rolls, so, if fix, just can reduce error with the relative position of this roller.
In addition, also can be that the position of above-below direction at least of above-mentioned downside hold assembly is with respect to fixing in the above-mentioned preform portion above-mentioned pair of rolls that has the film of pattern of supporting; Above-mentioned spacing test section is fixed in fact with respect to this downside hold assembly.Because film hangs down towards the below because of deadweight, so, if consider and reduce moving part and fixing downside, then can reduce error.In this case, preferably on above-mentioned upside hold assembly, form the slit of accepting above-mentioned spacing test section.
In addition, preferably between the pair of rolls of the above-mentioned film that has a pattern of preform portion supporting and above-mentioned preform portion, be provided with and be used to detect the test section that crawls that is printed on the anti-line that crawls on the above-mentioned film that has a pattern, on the part of above-mentioned film-supplying device, be provided with the anti-snake stabiliser of controlling by the 2nd test section.This is the dislocation of film on width that has pattern in order further to reduce.Particularly in the present invention, because residual hardly protuberance on all the other films after shaped portion is by the demoulding, so anti-snake stabiliser is brought into play its function effectively, the dimensional accuracy of width ratio mould internal shaping before etc. significantly improves.
In addition, the extension at the test section place of crawling on the film direction of travel in the preferably above-mentioned film that has a pattern is covered with by above-mentioned hold assembly up and down basically.In addition, the above-mentioned extension of crawling the test section place on the film direction of travel in the above-mentioned film that has a pattern is positioned at outside the relative part of heater.Like this, the line thermal deformation that adds partly that prevents to crawl is suppressed, and the film spacing is short, and the comparable width that more correctly carries out is controlled.In addition, the both sides on the thin-film width direction of the above-mentioned film that has a pattern are provided with the above-mentioned test section that crawls.
The preliminary shaping method of the above-mentioned pre-forming device of use of the present invention, it is characterized in that, by above-mentioned film-supplying device the above-mentioned membrane supplying that has a pattern to carrying out preformed preform portion, and, in the spacing width on the direction of travel of the film that has pattern relative with the preparation forming part, detect the film mark with the spacing test section, stop the supply of film, to have with above-mentioned hold assembly hold under the arm around the part that is formed in the film of pattern into, make heater near preform portion, and after making the film plasticization that has pattern, with above-mentioned preform mould the above-mentioned film that has pattern is carried out preform, the formed film that is used to insert in the above-mentioned main forming mould is made in the film demoulding that then will be shaped.
In addition, the main forming method of the above-mentioned pre-forming device of use of the present invention, it is characterized in that, by above-mentioned film-supplying device the above-mentioned membrane supplying that has a pattern to carrying out preformed preform portion, and, with above-mentioned direction of travel of preparing the film that becomes out relative above-mentioned of portion to have pattern on a spacing width in, detect the film mark with the spacing test section, detect the supply that stops film behind the film mark, with above-mentioned hold assembly with hold under the arm around the part that is formed in the above-mentioned film that has a pattern into, after making heater make the above-mentioned film plasticization that has a pattern near above-mentioned preform portion, with above-mentioned preform mould it is carried out preform,, make the formed film that is used to insert in the above-mentioned main forming mould the good film demoulding that is shaped, behind this formed film insertion main forming mould, supply with resin.
In addition, the film that has pattern that is used for pre-forming device of the present invention is characterized in that the central authorities of a spacing width on the film direction of travel are provided with the film mark, in addition, is provided with the anti-principal vertical line that crawls.
Like this, according to above-mentioned each feature of above-mentioned pre-forming device of the present invention, the preliminary shaping method that adopts this pre-forming device, main forming method, can significantly improve the pattern precision of film and the three-dimensional shape dimensional accuracy of the film that has been shaped.And, behind the position of having regulated direction of travel and width, as long as seize on both sides by the arms with hold assembly up and down, so, the good endurance of device, the device maintenance is also easy, can have the preform of excellence of less wastage of the film of pattern.
Other purpose of the present invention, structure, effect will clearly be understood in " specific embodiment " of following explanation.
Description of drawings
Fig. 1 is the sketch of pre-forming device.
Fig. 2 is the vertical view of the relation of expression pre-forming device, formed film conveying device, main forming device.
Fig. 3 (a) is the stereogram that the inboard has the formed products of pattern, (b) is the stereogram that the outside has the formed products of pattern.
Fig. 4 is the amplification profile diagram with the film shaped formed products that has pattern.
Fig. 5 is near the vertical view of the major part of the preform portion among the present invention.
Fig. 6 is the front view of the major part of Fig. 5.
Fig. 7 is near the enlarged drawing the flow regime pitch measuring.
Fig. 8 is the A-A profile of Fig. 7.
Fig. 9 is the stereogram that film transports.
The alignment mark of Figure 10 (a), (c) expression film and the relation of mobile status pitch measuring, (b), (d), (e) be the vertical view of expression film.(a) and (b), (e) are the present invention, (c), (d) be comparative example.
Figure 11 is the front view of pre-forming device of the present invention.
To be expression make the front view of the pre-forming device of the state that actuator up and down extended from the state of Figure 11 to Figure 12.
To be expression make down the front view of the pre-forming device of the state that the 2nd bar the actuator extended from the state of Figure 12 to Figure 13.
Figure 14 (a) is the upper side view of Figure 11, (b) is the upper side view of Figure 12.
Figure 15 be the preform step of expression among the present invention want portion's front view.
Figure 16 be expression from the state of Figure 15, the heater transposing is wanted portion's front view for another of the state of last finishing die.
To be expression make state after the finishing die decline from the state of Figure 16 to Figure 17 that another wants portion's front view.
To be expression make state after the finishing die rising from the state of Figure 17 to Figure 18 that another wants portion's front view.
To be expression carried out the state after the demoulding from the state of Figure 18 to Figure 19 that another wants portion's front view.
Figure 20 is the figure that is equivalent to Figure 15, represents the 2nd example of the present invention.
The specific embodiment
Below, present invention will be described in detail with reference to the accompanying.
As shown in Figure 1, 2, formation system 1 of the present invention has main forming device 2 and pre-forming device 3.Pre-forming device 3, the film that has pattern 4 by the pair roller shape forms and Punching Technology, makes being inserted into the formed film 5 that uses in the main forming device 2.
The injection device that main forming device 2 shown in Figure 2 has mold closing mechanism 11 and schemes not show.Mold closing mechanism 11 has slidably movable plate 11a and dish 11b that is relatively fixed with it by 4 bar 11c.But dynamic model 12 and fixed die 13 as the main forming mould are installed respectively on these movable plates 11a, fixed disk 11b.But between these dynamic models 12, fixed die 13, carry out main forming as injection moulding.From injection device come out by hot plasticization resin, but supply to the hole on being formed on actuator between the dynamic model 12 that opens and closes by actuator and movable plate 11a, the fixed die 13.
In the present embodiment, shown in Fig. 3 (a), the formed products 200 of be shaped dark dish or bowl etc., this formed products 200 has the film 201 that has pattern in the curved interior of resin 205.But, among the present invention, also can be shown in Fig. 3 (b) like that, the curved outside that is formed in resin 205 has the formed products 200 of the film 201 that has pattern.Be not limited thereto, also can on complicated shape or flat shape, form thin slice.In this example, on preform mould and main forming mould, distribute to form 4 bowls, 4 formed products simultaneously can be shaped.
What have that the film 4 of pattern uses is to have formed the film that has pattern that pattern forms with printing on the base material that is made of various resin films etc.Pattern can be picture, figure, literal, mark etc. one of them, also can be their combination.In addition, the resin that injects when pattern is not formed damages, and as shown in Figure 4, also can adopt the film that has pattern 201 that is provided with the protective layer 204 of protection pattern 203 in pattern 203 1 sides of base material 202.At this moment, resin 205 is injected into protective layer 204 sides, and base material 202 sides are as the surface.But, also can be with protective layer 204 sides as the surface.In the latter case, protective layer 204 also can adopt the hard coating machined layer of thermosetting resins such as urethane system.
In main forming device 2,, can adopt the thermoplastic resin of ABS, PP, PE, PS, PET, PC, allyl resin or PVC etc. from the resin 205 that injection device is supplied with.On the other hand, base material 202 also can adopt these materials.When making resin 205 and base material 202, pattern 203 and protective layer 204 adopt identical or homology resin, can be more prone to promote the utilization again of plastic products.Above-mentioned " use same resin " for example is meant base material 202, pattern 203, the protective layer 204 for ABS, adopts the resin 205 of ABS.Above-mentioned use homology resin for example is meant base material 202, pattern 203, protective layer 204 for propylene or styrene resin, uses the situation etc. of the resin 205 of ABS.
As shown in Figure 1, pre-forming device 3 mainly have supply with and batch the film-supplying device 62 of the film 4 that has pattern, in the F of preform portion, clamp the hold assembly 68 of the film 4 that has pattern, heater 70 that the film 4 that has pattern is heated, mutually carry out preformed preform form unit 76 down and on preform form unit 82, fill the demoulding unit 91 of cutting processing.
In film-supplying device 62, the film 4 that has a pattern is as the film roll 4a of supply side and batch the film roll 4b of side, be mounted respectively to be configured on pneumatic clamp axis 62a, the 62b, this pneumatic clamp axis 62a, 62b be configured in framework 61 bottoms about.In addition, 63 couples of pneumatic clamp axis 62a apply rollback tension force and back tension by driving mechanism, are applied by 63 couples of pneumatic clamp axis 62b of driving mechanism and batch tensile force.The film that has pattern 4 from supply side film roll 4a supply, arrive donor rollers 64 through oscillating roller 66a and a plurality of roller, after flatly crossing the F of preform portion, between back roller 65a, niproll 65b, process oscillating roller 67a and a plurality of roller are wound onto and batch on the side film roll 4b.It is the front end of the arm of center swing that oscillating roller 66a is configured in swinging axle 66b.It is the front end of the arm of center swing that oscillating roller 67a is configured in swinging axle 67b.In addition, the film 4 that has pattern orientation essentially horizontally in the F of preform portion.Back roller 65a and/or pinch roll 65b are provided with mono-directional overrun clutch 72, prevent to have the returning of film 4 of pattern.
Shown in Fig. 5～8, the last hold assembly 68j in the hold assembly 68 is by front and back pair of support parts part 69a, 69a and can be towards upper and lower to moving by a pair of actuator 69,69.On the other hand, following hold assembly 68i is bearing on the framework by 4 cramp bar 68k.Following hold assembly 68i, on hold assembly 68j front side about two width central authorities formed slit 68p, 68p respectively, be provided with the mobile pitch measuring 68n that has light head 121 and be subjected to shaven head 122 therein.
In this example, shown in Figure 10 (a) and (b), in the pattern that contains pattern 4x, alignment mark M1 is located at the centre position of a spacing W width of film throughput direction.On the other hand, common situation is shown in Figure 10 (d), at the boundary member of a spacing width W, alignment mark M2 to be set.
Under latter instance, if mobile pitch measuring 68n is configured in the position of Figure 10 (c), when film was D at the film percentage elongation of each spacing, then the percentage elongation of the film right-hand member among spacing W was DW.And in the present embodiment, because alignment mark M1 is located at the central authorities of a spacing W, so maximum is D * W/2=DW/2 just.Usually, the pitch measuring that flows is apart from several spacings of the F of preform portion, so the error that the film elongation causes further enlarges.In addition, can shown in Figure 10 (e), not detect alignment mark M1 yet, but replace alignment mark M1, with this part of spacing test section 68n ' detection 4z with a part of 4z of pattern 4y.
Therefore, in this example, can suppress the site error of the pattern 4x that the elongation because of film causes to greatest extent.Promptly, if the spacing test section 68n ' of alignment mark M1 and moving interval checkout gear 68n is arranged in a spacing W of film, then the distortion inaccuracy minimizing considers preferably to make the spacing test section 68n ' of these alignment marks M1, pitch measuring 68n to be positioned near the central or central of a spacing W from reducing the error aspect.
Below, describe moving interval checkout gear 68n and near structure thereof in detail.The slit 68p of front is formed on down hold assembly 68i, goes up the place ahead central portion of hold assembly 68j, and moving interval checkout gear 68n is inserted in the 68p of slit.Moving interval checkout gear 68n is configured in and is located at the position that the alignment mark M1 on each pattern 4x passes through, and with spacing test section 68n ' detection alignment mark M1, the central authorities that can make pattern 4x be positioned at hold assembly 68 are the central portion of finishing die.Moving interval checkout gear 68n is by being installed in down the detection support 120 on the hold assembly 68i and being bearing in light head 121 on this detection support 120, constituted by shaven head 122.
In detecting support 120, following piece 120a is across the slit 68p of following hold assembly 68i, detecting support 120 is installed on this time piece 120a, a perforation axle 120c can be connected movably towards vertical piece 120b, and fixing the piece 120d of branch at its front end, making a pair of extension 120e, 120e branch up and down abreast.At the front end of extension 120e up and down, light head 121 is installed respectively, is subjected to shaven head 122, it is mutual relative that light outlets 121a and light-receiving mouth 122a separate minim gap ground, and spacing test section 68n ' is between them.From detection light such as the illuminating part of light emitting diode etc. by optical fiber 121b conduction, see through the film 4 that has pattern, be transmitted to optical sensor from light-receiving mouth 122a by optical fiber 122b.In addition, yet can illuminating part and light accepting part be directly arranged in light head 121, be subjected on the shaven head 122 by optical fiber 121b, 122b.
In this example, following hold assembly 68i can not move at above-below direction with respect to framework with donor rollers 64 and back roller 65a, and moving interval checkout gear 68n is fixed on down on the hold assembly 68i.Move up and down and go up hold assembly 68j, the film 4 that will have pattern is pressed to the below.Therefore, for fear of the interference of the film that has pattern 4 that causes along with moving of last hold assembly 68j with moving interval checkout gear 68n, the height of spacing test section 68n ' that makes moving interval checkout gear 68n near the fixation side in the opposite face of hold assembly 68, promptly descend the upper surface of hold assembly 68i.Therefore, the position of the common film that has pattern 4 is set in than the more close position of the upper surface of hold assembly 68i down of the lower surface of last hold assembly 68j.Have film 4, the hold assembly 68 of pattern, the relativeness of moving interval checkout gear 68n by this, the contraposition that has the film 4 of pattern is subjected to 68 pairs of hold assemblies to have the obstruction of seizing action on both sides by the arms of the film 4 of pattern hardly.
Below, pair prevent that the crawling of film 4 that has pattern from describing with reference to Fig. 5～9.The width both ends of the film that has pattern 4 have in the present invention been printed crawl anti-principal vertical line M3, M3 respectively.In order to detect this a pair of crawl anti-principal vertical line M3, M3, between donor rollers 64 and back roller 65a and the F of preform portion, be provided with 4 checkout gear 68m that crawl (68ml～4) respectively.The checkout gear 68m that respectively crawls has above-mentioned detection support 120, light head 121 and is subjected to shaven head 122, and test section 68m ' is equivalent to crawl between these heads.In addition, crawl anti-principal vertical line M3, M3 also can be located at the either side of the film 4 that has pattern, still, all are provided with when crawling checkout gear 68m the width both sides, can improve the correction precision of crawling.
Donor rollers 64 (figure kind is omitted) can be that the Y direction moves freely at the direction of principal axis of this roller, and according to the detection of preventing principal vertical line M3, M3 by crawling of the checkout gear 68m that crawls, anti-locking apparatus 73 makes this roller move towards the Y direction by crawling.In addition, donor rollers 64 is moved to the Y direction, back roller 65a, pinch roll 65b are moved towards the Y direction, anti-locking apparatus 73 is controlled by crawling.In addition, the whole film-supplying device 62 from supply side film roll 4a to donor rollers 64 can be moved towards the Y direction, also can control with the anti-locking apparatus 73 that crawls.
Have the extension that the test section 68m ' that crawls on the film direction of travel X in the film 4 of pattern locates and be covered with by above-mentioned hold assembly 68i, 68j up and down, the anti-principal vertical line M3 that crawls is covered with by identical hold assembly 68i, 68j.In addition, have the extension that the test section 68m ' that crawls on the film direction of travel X in the film 4 of pattern locates and be positioned at outside the relative part of heater 70, like this, the anti-principal vertical line M3 that crawls is positioned at outside the relative part of heater 70.By these position relation, can prevent to crawl and prevent the thermal deformation that adds of principal vertical line M3 part, prevent that the film after the demoulding from transporting crawling of generation, so, the not waste of the film that has pattern 4 on direction of travel X.
Adding man-hour, detecting earlier the anti-principal vertical line M3 that crawls of the film 4 that has pattern with the checkout gear 68m that crawls, donor rollers 64 in Y direction by the anti-locking apparatus 73 that crawls by fine adjustment, like this, supply with the film 4 that has pattern while prevent to crawl.When alignment mark M1 was moved pitch measuring 68n and detects, the film 4 that has pattern in position stopped.Then, be held the state that parts 68,68 are being seized on both sides by the arms at the film 4 that has pattern, heater 70 slides towards directions X from Fig. 5,6 left, is positioned at the central authorities of hold assembly 68j upper surface.Roller curtain-shaped cover member 64b is arranged at the top of the film that has pattern 4 of donor rollers 64 sides, like this, can prevent that the film that has pattern 4 before supplying to hold assembly 68 from producing scale error because of thermoplastic.Under quilt hold assembly 68i, on the state that supporting of hold assembly 68j, be heated the softening film that has pattern 4 and be not easy to produce scale error, lower punch 81c pushes up towards the top from the below, carries out high-precision shaping.
Below, with reference to Figure 11～19, the shape and the actuator 100 of actuator 30, following preform mould 80 is described.
Shown in Figure 11～14, near by pressing plate 26, disposing a pair of actuator 30,30.Each actuator 30 has telescopic bar 31, and the front end downside of this bar 31 has smooth curved surface 32.This bar 31, when actuator 97 elongation, move to descended by pressing plate 26 on, supporting by pressing plate 26 and demoulding unit 91.
As Figure 11, shown in Figure 14, following preform mould 80 has stacked from bottom to up first～the 3rd movable platen 81a1,81a2,81a3, a pair of spacer 81b and hemispheric lower punch 81c.Between each movable platen 81a1～81a3, disposing slide mechanism 81a4 respectively, carrying out the fine adjustment of punch die installation site by lower punch 81c is relatively moved on the XY direction with respect to first time movable platen 81a1.
Also with following preform mould 80 equally in demoulding unit 91, from top to down stacked movable platen 98a3 and the 98c of pair of cylinders portion on the movable platen 98a2, the 3rd on the movable platen 98a1, second on first.Demoulding cutter 99 is installed on the cylindrical portion 98c.By the slide mechanism 98a4 that is located at each layer, similarly carry out the adjusting of XY direction with slide mechanism 81a4.Carry out the demoulding by each the through hole 68a that makes the demoulding cutter 99 that is bearing on the discoid cylindrical portion 98c pass hold assembly 68 respectively.
When the 3rd supply and exhaust mouth P3 has supplied with air, press oil pressure converting means 109 air to press to become at air and be oil pressure, by stop valve 108, be communicated with stream 107 and supply to oil pressure area L S, as shown in figure 12, first piston 104, first bar 103 are upwards pushed away.In addition, when when the first supply and exhaust mouth P1 has supplied with air, air is discharged from the second supply and exhaust mouth P2, and as shown in figure 13, on second piston 106 and second bar, 105 tops, second cylinder 102 plays the effect to first cylinder, 101 boosting devices.After air 2 was supplied with from the 3rd supply and exhaust mouth P3, stop valve 108 became closed condition.
Below, the relation of the formed film conveyer 50 of main forming device 2 and pre-forming device 3 is described with reference to Fig. 2.This formed film conveyer 50 is made of interpreter 51 and slide block 53.Interpreter 51 is accepted formed film 5 and is made its conversion 90 degree directions.Slide block 53 is walked on rail 52, but is used for accepting formed film 5 and being transported to dynamic model 12 from interpreter 51.Support plate 51a is being supported by two supporting arm 51b, by motor 51c conversion direction.On support plate 51a, be provided with 4 sucker 51d that are used to adsorb formed film 5.Cross bar 54a landscape configuration is installed with two vertical pole 54b, 54b of vertical configuration at the two ends of this cross bar 54a on slide block 53, the sucker 54c of formed film 5 absorption usefulness is installed respectively at the front end of these two vertical pole 54b, 54b.On the movable rod front end that is installed in the actuator 54d on the slide block 53, cross bar 54a is installed, sucker 54c is moved in the horizontal direction.
Below, the action of the pre-forming device of present embodiment is described.At first, as shown in figure 15, heater 70 be held the film that has pattern 4 that parts 68,68 are holding under the arm above, move to the F of preform portion from directions X, make the film 4 that has pattern softening.Film 4 softening like that the hanging down shown in chain-dotted line that has pattern.Then heater 70 is moved to left-hand side, as shown in figure 16, will go up preform mould 89 and move to the F of preform portion from the directions X right side, preform mould 80 is risen, will have film 4 jack-up of pattern with lower punch 81c.Then, as shown in figure 17, preform mould 89 is descended, the film that has pattern 4 that has softened is held under the arm between lower punch 81c and the recess 89a, form.In these operations, 80 of following preform moulds are driven by first cylinder 101 and rise.
Then, the demoulding unit 91 of Figure 12 moves to the F of preform portion from the left side, and demoulding cutter 99 is descended.In addition, shown in Figure 12,14 (b), make bar 31 elongations, and support by pressing plate 26.As shown in figure 13, this state is sent into compressed air from the first supply and exhaust mouth T1 certainly, the film that has pattern 4 that crush-cutting was shaped with demoulding cutter 99 with above the spacer 81b.Then, as shown in figure 18, using the formed film 5 that preform mould 89 made by last preform mould 89 demouldings moves, preform mould 80 is descended, and make hold assembly 68,68 unclamp the film 4 that has pattern, batch the film that has pattern 4 after the demoulding with above-mentioned film conveyer 62.The not demoulding in preform before is not so need the concavo-convex of part to make batching behind the preform become difficulty owing to preform becomes.But, among the present invention owing to carry out the demoulding, so can successfully batch behind the preform with demoulding unit 91.Then, the film conveyer 5 that is formed of the formed film 5 after the demoulding transports, and carries out main forming.Therefore, the operation of main forming device 2 and pre-forming device 3 is not disturbed mutually, can be with carrying out the mould internal shaping or inlay shaping with the same substantially speed of common shaping.
In second example of the present invention shown in Figure 20, the downside of the film that has pattern 4 in the F of preform portion, also be provided with the heater 70 same with heater 70 ', the film 4 of this heater 70 ' heat and have pattern from downside.Heater 70 moves at directions X as described above, heater 70 ' mobile in the Y direction towards front side ground from the rear side of device.When the film 4 that has pattern is materials of laminate film and upper and lower surface when equal, need to heat respectively top and bottom sometimes.Therefore, heater 70 and heater 70 ' can distinguish independent control.
At last, other embodiment of the present invention is described.
In the above-described embodiment, carry out injection moulding by main forming device 2.But, adopt the main forming device 2 of pre-forming device 3 of the present invention, for example also can carry out blow molding, so long as adopt the manufacturing process of thermoplastic resin forming machine all can.Formed products spreads all over every field, except flat shape, also can apply pattern on the surfaces externally and internally of the formed products with deep-draw deep.
In the above-mentioned embodiment, the film 4 that has pattern is the films that adopt the roller shape.But the film 4 that has pattern also can adopt the sheet film that cuts into required form.At this moment, can similarly install replacement film-supplying device 62 with formed film conveyer 50 or with it.
In the above-mentioned embodiment, actuator 30 is located on the preform form unit 82, on the following preform mould 80 of downside, is provided with the actuator 100 of secondary pressurization.In theory, also can be located at down actuator 30 on the preform mould 80, actuator 100 is arranged on the preform form unit 82.But because actuator 100 volumes are big, so preferably actuator 100 is located at down on the preform mould 80.
In the above-mentioned embodiment, with counterdie as punch, with patrix as die.But also can it be processed towards downside, contact, make as the counterdie of die approachingly then, carry out vacuum forming with it with the film that has pattern with patrix as punch.But the former with the latter is compared, and the deformation energy that causes that contacts with film more successfully carries out.
Only for the ease of the contrast accompanying drawing, the present invention is not subjected to the qualification of this mark to Reference numeral in claims.In addition, the temperature among the present invention and other data qualification are not limited to the value of the embodiment of the invention.
Industrial applicibility
Pre-forming device of the present invention, preliminary shaping method, main forming method reach with pattern Film, can be used for inlaying and be shaped or the manufacturing process of mould internal shaping etc. Inlaying shaping In, make with the surface of the close contact of pattern segments at product own. In the mould internal shaping, be Pattern with pattern segments is copied on the surface of product.
Claims (11)
1, pre-forming device comprises film-supplying device (62), hold assembly (68i, 68j), heater (70), preform mould (80,89) and film stripper apparatus up and down; Above-mentioned film-supplying device (62) is used for the film (4) that has pattern is supplied to the preformed preform portion (F) that carries out; Above-mentioned hold assembly (68i, 68j) is up and down seized the above-mentioned film that has pattern on both sides by the arms in above-mentioned preform portion (F), has through hole (68a); Above-mentioned heater (70) can be free approaching, remotely mobile with respect to above-mentioned preform portion (F), and the above-mentioned film that has pattern of before preform hold assembly (68i, 68j) about the quilt being seized on both sides by the arms makes its plasticization in above-mentioned preform portion's heating; Above-mentioned preform mould (80,89) can be approaching with respect to above-mentioned preform portion freedom, remotely move, and by above-mentioned through hole (68a) with above-mentioned film (4) preform that has pattern; Above-mentioned film stripper apparatus (91) is used for carrying out the demoulding after with above-mentioned film (4) preform that has a pattern; It is characterized in that, above-mentioned preform mould (80,89) comprise with by plasticization above-mentionedly have the contacted punch of film (81c) of pattern and accept this punch and carry out vacuum-formed die (89a), disposing the spacing test section (68n ') that is used to detect film mark (M1) in a spacing (W) width during shaping on the film direction (X) of relative with above-mentioned preform portion (F) the above-mentioned film (4) that has a pattern, in the above-mentioned pair of rolls (64 that has the film (4) of pattern of above-mentioned preform portion (F) upper support, 65a) and between the above-mentioned preform portion (F), be provided with and detect the test section that crawls (68m ') be imprinted on the anti-line that crawls on the above-mentioned film that has a pattern, part at above-mentioned film-supplying device is provided with the anti-snake stabiliser of being controlled by this 2 test section, the extension of the test section that crawls (68m ') on the film moving direction (X) in the above-mentioned film (4) that has a pattern is by above-mentioned hold assembly (68i up and down, 68j) be covered with.
2, pre-forming device as claimed in claim 1, it is characterized in that, the spacing test section (68n ') that detects film mark (M1) is being set independently from the position of above-mentioned preform mould and with respect to preform mould (80,89) to a lateral deviation vertical with above-mentioned film direction of travel.
3, pre-forming device as claimed in claim 1 is characterized in that, above-mentioned spacing test section (68n ') is configured in the central authorities in an above-mentioned spacing (W) width.
4, pre-forming device as claimed in claim 1 is characterized in that, the position of above-below direction at least of above-mentioned spacing test section (68n ') is with respect to fixing in the above-mentioned pair of rolls that has a film (4) of pattern of preform portion (F) upper support (64,65a).
5, pre-forming device as claimed in claim 1 is characterized in that, the position of above-below direction at least of above-mentioned downside hold assembly (68i) is with respect to fixing in the above-mentioned pair of rolls that has a film (4) of pattern of above-mentioned preform portion (F) upper support (64,65a); Above-mentioned spacing test section (68n ') is fixed on this downside hold assembly (68i).
6, pre-forming device as claimed in claim 5 is characterized in that, is formed with the slit (68p) of accepting above-mentioned spacing test section (68n ') on above-mentioned upside hold assembly (68j).
7, pre-forming device as claimed in claim 1 is characterized in that, the outer extension of the test section that crawls (68m ') on the film direction of travel (X) in the above-mentioned film (4) that has a pattern is positioned at outside the relative part of heater (70).
8, pre-forming device as claimed in claim 1 is characterized in that, the both sides on the thin-film width direction (Y) of the above-mentioned film (4) that has a pattern are provided with the above-mentioned test section that crawls (68m ').
9, preliminary shaping method, each described pre-forming device forms in the use claim 1～8, it is characterized in that, by above-mentioned film-supplying device (62) the above-mentioned film (4) that has pattern is supplied to the preformed preform portion (F) that carries out, and, in a spacing (W) width on the direction of travel (X) of relative with above-mentioned preform portion (F) the above-mentioned film (4) that has a pattern, after detecting film mark (M1), stop the supply of film with spacing test section (68n '), with above-mentioned hold assembly (68i, 68j) with hold under the arm around the part that is formed in the above-mentioned film (4) that has a pattern into, make heater (70) near above-mentioned preform portion (F) and after making the above-mentioned film plasticization that has a pattern, with above-mentioned preform mould (80,89) this film that has pattern is carried out preform, the formed film (5) that is used in the above-mentioned insertion main forming mould is made in the film demoulding after being shaped.
10, the main forming method, each described pre-forming device forms in the use claim 1～8, it is characterized in that, by above-mentioned film-supplying device (62) the above-mentioned film (4) that has pattern is supplied to the preformed preform portion (F) that carries out, and, in a spacing (W) width on the film direction of travel (X) of relative with above-mentioned preform portion (F) the above-mentioned film (4) that has a pattern, after detecting film mark (M1) with spacing test section (68n '), stop the supply of film, with above-mentioned hold assembly (68i, 68j) will have hold under the arm around the part that is formed in the film (4) of pattern into, make heater (70) near above-mentioned preform portion (F), after making the above-mentioned film plasticization that has a pattern, with above-mentioned preform mould (80,89) this film that has pattern is carried out preform, with the film demoulding that has been shaped and make the formed film (5) that is used to insert in the above-mentioned main forming mould, behind this formed film (5) insertion main forming mould, supply with resin.
11, the film that has pattern, be used for each described pre-forming device of claim 1～8, it is characterized in that, in these central authorities that have a spacing (W) width on the film direction of travel (X) of film of pattern film mark (M1) is set, this film that has pattern also is provided with the anti-principal vertical line (M3) that crawls.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002369526 | 2002-12-20 | ||
| JP3695262002 | 2002-12-20 | ||
| JP438462003 | 2003-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1713976A CN1713976A (en) | 2005-12-28 |
| CN100503212C true CN100503212C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038256754A Expired - Fee Related CN100503212C (en) | 2002-12-20 | 2003-08-04 | Preliminary forming apparatus, preliminary forming method and main forming method using the apparatus, and film with picture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100503212C (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000052416A (en) * | 1998-08-11 | 2000-02-22 | Nissha Printing Co Ltd | Film insert molding method and preforming mold used therein |
| JP2002210815A (en) * | 2000-09-22 | 2002-07-31 | Kunio Imai | Preforming apparatus as well as preforming method using the same and main forming method |
-
2003
- 2003-08-04 CN CNB038256754A patent/CN100503212C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000052416A (en) * | 1998-08-11 | 2000-02-22 | Nissha Printing Co Ltd | Film insert molding method and preforming mold used therein |
| JP2002210815A (en) * | 2000-09-22 | 2002-07-31 | Kunio Imai | Preforming apparatus as well as preforming method using the same and main forming method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1713976A (en) | 2005-12-28 |
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