CN101209576A - Ejection shaping mould - Google Patents

Abstract

The invention provides an injection forming die, comprising a first module and a second module which can be relatively opened and closed; when the second module is closed, a die cavity and a space used for forming are circularly arranged together; furthermore, the second module is connected with a fixture which can be operated and reciprocates to move between a first position and a second position; when the fixture is arranged on the first position, the clamping surface of the fixture is not contacted with the second module; when the fixture is arranged on the second position, the clamping surface is contacted with the second module; when the first module and the second module are closed, the fixture is arranged in the space and around the die cavity.

Description

Ejection shaping die

Technical field

The present invention relates to mould, more detailed be meant a kind of ejection shaping die.

Background technology

Be the high accuracy of pursuing plastic and high-quality, various incrustation processing procedures in response to and give birth to, with assembly processing procedure in the mould is example, and its major technique is for earlier a film being printed and decorating, then with the moulding of hyperbar stretching three-dimensional, mould the shape of film by this, follow die-cut required size again, put into the mould ejection formation thereafter, have this decorating film because of the surface and penetrate finished product, therefore its appearance is wear-resisting, and literal and pattern be cracky or come off not; But, because film is prior to after the outside moulding of mould, be placed into the die cavity of mould again, yet present various plastic raw materials all has the characteristic of rising-heat contracting-cold, therefore film is after outside moulding, to produce different shrinkage factor (being washing shrinkage) because of the difference of hardening time, produce when causing film to insert die cavity can't driving fit phenomenon, and then make ejaculator when injection material is injected die cavity with HTHP, the situation of film breaks takes place, cause fraction defective to raise, cause literal on the product or pattern not on the precalculated position, anti-to making that to penetrate finished product not attractive in appearance.

For improving above-mentioned disappearance, then have the dealer develop a kind of as Fig. 1 to in-mold film assembly processing procedure shown in Figure 5, the employed ejection shaping die 1 of this processing procedure comprises a male model 2 and a master mold 3, this male model 2 has a first surface 2a, and be formed with a protuberance 2b in this first surface 2a projection, this master mold 3 has a second surface 3a, and has been recessed to form a recess 3b in this second surface 3a; One continuous shape film 4 is placed in the mould 1, and controlled and this master mold 3 keeps a suitable distance, then, one heating plate 6 with high heat is operated and is displaced downwardly to this public affairs, master mold 2,3 one precalculated positions, move toward master mold 3 directions again after waiting to put in place, and with the first surface 3a of its heating surface 6a and this master mold 3 this film 4 of clamping together, this film 4 is fixed, be subjected to this moment the film 4 of thermal softening to be attached at the recess 3b of this master mold 3 by a pneumatic supply (figure does not show) vacuum attraction to form a reservation shape, thereafter, heating plate 6 is moved to mould 1 outside, mould 1 beginning closure is carried out ejection formation, makes injection material combine with this film 4, and is last, can obtain the moulding product that the surface is coated with this film 4 after the die sinking, improve the bad problem in aforementioned film location according to this.

Yet in the heating schedule of Fig. 2, so the mode of this heating plate 6 and these film more than 4 adosculation heats, so film 4 suffers the temperatures involved of heating plate 6 and fusion easily; Even if above-mentioned film 4 melting phenomenon can not take place, but in the heating schedule of Fig. 3 next, because this heating plate 6 is these film 4 peripheries of direct clamping and heats, so film 4 causes whole processing procedure to interrupt very easily by high heat fusing; So, even if this film 4 can bear the high temperature of heating plate 6 and not damage, but this film 4 is will Yin Wendu wayward and produce warpage, except that making the out-of-flatness of finished product outward appearance, also can't produce the bending distortion of wide-angle, therefore the bending angle of product all less than below 70 degree, causes the product range of application to narrow; Secondly, film 4 also might because of overheated attach to be with in the lump on this heating plate 6 from, cause film 4 to combine smoothly with female film 3.

Therefore, in a single day above-mentioned film 4 impaired problems take place, and the entire job flow process certainly will stop, and after must treating that impaired film is handled, begins to restart operation, thus, certainly will will cause production inconvenience and waste of material, are not inconsistent economic benefit in fact.

In view of this, this case inventor thinks funiculus through detailed, and long-pending exploitation and the manufacturing experience of being engaged in relevant industries for many years, and generation of the present invention is arranged eventually.

Summary of the invention

Main purpose of the present invention is to provide a kind of ejection shaping die, is the clamping piece fixed film that utilizes on the mould, and separates this film and heating source, outside expansion product range of application, takes into account the precision and the quality of finished product simultaneously.

For reaching above-mentioned purpose, a kind of ejection shaping die provided by the present invention, it comprises that one first module can relative first module open and the second closed module with one, this first, second module encloses jointly when closed and forms a die cavity and the space that a moulding is used; This mould more comprises a clamping piece, this clamping piece is to be connected in this second module, and has a folder face, when this first, second module is opened, this clamping piece is operated and is moved back and forth between a primary importance and a second place, when this clamping piece during in this primary importance, this folder face does not contact this second module, when this clamping piece during in this second place, this folder face contacts this second module, when this first, second module was closed, this clamping piece was placed in this space, and is positioned at around this die cavity; By this, the clamping piece of mould of the present invention is to replace existing heater clamping film, so that the finished product range of application obtains expansion, and has high accuracy and high-quality simultaneously concurrently.

Description of drawings

Fig. 1 to Fig. 5 is the schematic diagram of the mould of existing in-mold film assembly processing procedure and use thereof;

Fig. 6 is the exploded perspective view of the ejection shaping die of a preferred embodiment of the present invention;

Fig. 7 is the top view of first module;

Fig. 8 is the front view of first module;

Fig. 9 is the stereogram of second module;

Figure 10 discloses the front view that clamping piece is connected in second module;

Partial sectional view when Figure 11 discloses first module and second module closure is to disclose the position of pore;

Figure 12 discloses the side view of first module and the second module closure;

Figure 13 is the cutaway view of Figure 12;

Figure 14 is the three-dimensional dorsal view of clamping piece;

Figure 15 is the front isometric view of clamping piece;

Figure 16 discloses cantilever clamping film and stretches to top view in the groove of the present invention, and clamping piece is the top view of clamping film not as yet;

Figure 17 is the side view of Figure 16;

Figure 18 discloses clamping piece clamping film, and cantilever still is positioned at the side view of groove;

Figure 19 discloses film by the clamping piece clamping, and cantilever has stretched out the top view of groove;

Figure 20 is the side view of Figure 19;

Figure 21 disclose film be clamped in second module and anchor clamps between front view;

Figure 22 discloses film and is clamped by first non-slip nosing and second non-slip nosing;

Figure 23 discloses the side view that heater heats film;

Figure 24 disclose film by vacuum suction in second module and the side sectional view of moulding;

Figure 25 discloses the side sectional view that the mould closure is carried out ejection formation;

Figure 26 discloses the side view of mold open.

[primary clustering symbol description]

10 ejection shaping dies

11 first module 11a injection channels

12 first die joints, 121 blade parts

13 protuberances, 14 storage tanks

15 second module 15a guide holes

16 second die joints, 161 first non-slip nosings, 162 cutting blade grooves

17 ones

19 sides, 18 bottom surfaces

20 pores, 21 air flues, 22 die cavities

23 spaces, 24 grooves

25 clamping pieces, 26 cylinder 26a piston rods

27 socket pipes, 28 folder faces, 29 grooves

30 second non-slip nosings, 31 hollow-out parts, 32 guide rods

33 heaters

100 ejaculators, 101 films, 102 cantilevers

103 folder film devices, 104 finished products

The P1 primary importance P2 second place

The specific embodiment

Fig. 6 to Figure 25 is the ejection shaping die 10 of a preferred embodiment of the present invention, and this mould 10 comprises one first module 11, one second module 15 and a clamping piece 25, and present embodiment is that this mould 10 is applied to in-mould thin film connecting shaping manufacture process, wherein:

Please cooperate Fig. 6 to Fig. 8, this first module 11 is to be connected in an ejaculator 100 in present embodiment, and is can controlled mobile module; This first module 11 has one first die joint 12 and a tab-like protuberance 13 that is formed in this first die joint 12, and is provided with an injection channel 11a, and this ejaculator 100 can inject mould 10 inside from this injection channel 11a with injection material; This first module 11 has been recessed to form a storage tank 14 from this first die joint 12;

Please continue and cooperate Fig. 9 to shown in Figure 10, this second module 15 is fixing module in this enforcements, its be by by moving of aforementioned first module 11 with open and closure; This second module 15 has one second die joint 16 and and is recessed to form recess 17 in this second die joint 16, wherein these second die joint, 16 peripheries have 2 first non-slip nosings 161, should each first non-slip nosing 161 be to be round rubber in present embodiment, this recess 17 has a bottom surface 18 and a side 19 around this bottom surface 18, more than this bottom surface 18 is spent greater than 70 with these side 19 angles, present embodiment is for being mutually rough 90 degree, the junction of this bottom surface 18 and this side 19 is around being provided with a pore 20 (with reference to Fig. 9 and shown in Figure 11), this pore 20 sees through these second module, 15 inner air flues 21 of laying and is connected with external pressure source (figure does not show), this pneumatic supply is to can be pumping, can control and this recess 17 is extracted be vacuum negative pressure condition or be pressurized to barotropic state under air-tight state, wherein the aperture of this pore 20 increases towards the rightabout of this second die joint 16; In addition, this second module 15 is provided with four guide hole 15a;

Referring again to Figure 12, Figure 13, when above-mentioned first module 11 and second module, 15 closures, this first die joint 12 contacts with second die joint 16, and this protuberance 13 encloses jointly with this recess 17 and forms the die cavity 22 that an ejection formation is used, and second die joint 16 and these storage tank 14 common formation one spaces 23 (with reference to Fig. 6 and shown in Figure 13).

What must illustrate in addition is, as shown in Figure 6, film 101 of the present invention is tailored into the single sheet material of a preliminary dimension earlier before processing procedure begins, and by the folder film device 103 4 end clampings of two cantilevers 102 on the film feeding machine and await orders in mould 10 outsides (because the non-creation spirit of the present invention of film feeding machine is not given unnecessary details in this appearance); For this reason, second module 15 is recessed to form a groove 24 respectively downwards from second die joint 16 of these recess 17 2 sides, and respectively two ends and the exterior of this groove 24, by stretching into for this two cantilever 102 and film 101 being inserted this mould 10.

This clamping piece 25 is a plate body, please refer to Fig. 6 and Fig. 9, Figure 10, Figure 14 and shown in Figure 15, it is that relatively this second module 15 is reciprocating by being fixedly arranged on the drive unit of this second module 15 by one, the drive unit of present embodiment is the both sides that two cylinders 26 are divided into this second module 15, promptly, the piston rod 26a of cylinder 26 and the docking section of clamping piece 25, the docking section of present embodiment is two socket pipes 27, connects and can order about this clamping piece 25 and move back and forth between a primary importance P1 (Figure 17 with reference to) and a second place P2 (Figure 18 reference).Please cooperate Figure 14 and Figure 15 again, this clamping piece 25 has a folder face 28 in the face of this second die joint 16, and be formed with two grooves 29 that should two grooves 24 in this folder face 28, folder film device 103 in order to ccontaining film feeding machine, again, these folder face 28 peripheries are arranged with 2 second non-slip nosings 30, respectively this second non-slip nosing 30 is to be rubber in present embodiment, and this 2 second non-slip nosing 30 is in this folder face 28 during near this second die joint 16 and the 161 staggered interlocks (as shown in figure 22) of aforementioned first non-slip nosing, by this film 101 is clamped; In addition, this clamping piece 25 have a pair of should protuberance 13 with the hollow-out parts 31 of this recess 17, and be provided with four guide rods 32 in the plate body, respectively this guide rod 32 stretches into the corresponding guide hole 15a on this second module 15, the stability when providing this clamping piece 25 to move;

More than be ejection shaping die 10 each member of present embodiment and the explanation of relevant position thereof, then narrate it and apply to in-mould thin film connecting shaping manufacture process and the effect that is produced and advantage thereof in the back:

At first this first, second module 11,15 is separated from each other, extremely shown in Figure 17 as Fig. 6 and Figure 16, and, this clamping piece 25 is positioned on the primary importance P1 that does not contact second module 15, thereafter film 101 is inserted in the mould 10, this moment monolithic thin film 101 by by the quick feeding of cantilever 102 to the groove 24 of this mould 10; Therefore, the design of the groove 24 of this mould 10 can realize the quick feeding of monolithic thin film 101, compares the existing production efficiency and the yield that more can promote the in-mold film combination process with the film implantation mode of artificial or manipulator;

Please continue with reference to Figure 17 to Figure 22, after this film 25 is placed into mould 10 location, this clamping piece 25 will move to the second place P2 (with reference to Figure 18) of its folder face 28 these second modules 15 of contact from the primary importance P1 (with reference to Figure 17) that its folder face 28 does not contact second module 15, clamp this film 101 by this; What only must illustrate is, for making film 101 locating effects better, the clamping piece 25 of present embodiment all gives clamping packing (with reference to Figure 21 and Figure 22) for the periphery of film 101, it mainly utilizes second non-slip nosing 30 of this clamping piece 25 and first non-slip nosing, the 161 staggered interlocks of this second module 15, by these film 101 peripheries are produced powerful friction clamping power; In addition, the folder face 28 of this clamping piece 25 is provided with this groove 29 (with reference to Figure 18), in order to avoid when clamping piece 25 moves to this second place P2, striking folder film device 103, and can treat this this film 101 of clamping piece 25 clampings for this two cantilever 102, and stretch out this groove 24 (with reference to Figure 19 to Figure 21) again behind this film 101 of folder film device 103 pine oils;

Referring again to Figure 23 and Figure 24, be to be above-mentioned back processing procedure, disclose film 101 among the figure by behind the clamping, one heater 33 moves to mould 10 corresponding positions, and with the be separated by distance of about clamping piece 25 thickness of this film 101, and this heater 33 sees through 31 pairs of these films 101 of this hollow-out parts and heats, by avoiding existing film 101 easy impaired problems, back and utilize external pressure source (figure do not show) to see through 20 pairs of these second modules 15 of pore that are located on recess 17 turning points and carry out negative pressure of vacuum and attract (with reference to Figure 24), and, because this clamping piece 25 separates this film 101 and heater 33, make this film 101 be heated evenly and extend and adhere well to the advantage of this recess 17 with the bending place that can form wide-angle (present embodiment recess 17 bottom surfaces 18 are mutually rough vertical angle with side 19), and the design of this hollow-out parts 31 can allow clamping piece 25 under the mode with fixed film 101 peripheries, still can heat film 101, and by design by the pore 20 that is located on recess 17 turning points, reach the purpose that film 101 adhere well to recess 17, so that it is more smooth to be coated in the film 101 of finished surface.Referring again to Figure 25 and Figure 26, when these first, second module 11,15 closures, the protuberance 13 of this first module 11 passes this hollow-out parts 31 and encloses jointly with the recess 17 of this second module 15 and to form this die cavity 22, and this clamping piece 25 is placed in this space 23, and be positioned at around this die cavity 22, can't hamper the carrying out of penetrating operation.

At last, carry out the die sinking operation, this first module 11 is operated toward this second module 15 and moves in the other direction, and to start this pneumatic supply supercharging be malleation and then push away this finished product 104 and this film 101 breaks away from the recess 17 of these second modules 15, and die sinking program as shown in figure 26 can obtain the finished product 104 that a surface is coated with this film 10.

In addition, for making finished product 104 remove limit surplus the films 101 smoothly, as shown in figure 11, the present invention can be provided with blade part 121 in these first module, 11 peripheries, these second module, 15 peripheries are provided with cutting blade groove 162, with removing limit surplus the film 101 so that this first module 11 and this second module 15 when closed, are taken advantage of a situation.

From the above, the present invention directly utilizes the clamping piece 25 in the mould 10 to grip this film 101, and with this film 101 and heater 33 maintenances one suitable distance, the design of pore 20 is gone up in collocation again, make finished product 104 have the bending place of wide-angle and can expand outside the product range of application by this, have high accuracy and high-quality simultaneously concurrently.

What must be illustrated is, the present invention's second module 15 is provided with pore 20 and air flue 21, be in film 101 thermoplastics this film 101 of vacuum suction and take shape in second module, 15 recesses, 17 bottom surfaces 18 again, in fact, the present invention is in the vacuum suction aspect, be that mode for internal negative pressure makes film 101 moulding, its mode also can be utilized the impact style of outside malleation to make film 101 take shape in second module, 15 recesses, 17 bottom surfaces 18 to replace, perhaps utilizing the air pressure of outside malleation or other kenel malleation mode to make film 101 take shape in second module, 15 recesses, 17 bottom surfaces 18 replaces, therefore, the pore 20 of the present invention's second module 15 and air flue 21 are non-is necessary important document.

The above only is a preferable possible embodiments of the present invention, uses the equivalent structure variation that specification of the present invention and claim are done such as, ought to be included in the claim of the present invention.

Claims (14)

1. ejection shaping die is characterized in that comprising:

One first module;

One second module, the relative unlatching with this first module of this second module are with closed, and this first, second module encloses jointly when closed and forms a die cavity and the space that a moulding is used;

One clamping piece, be connected in this second module, and have a folder face, when this first, second module is opened, this clamping piece is operated and is moved back and forth between a primary importance and a second place, when this clamping piece during in this primary importance, this folder face does not contact this second module, when this clamping piece during in this second place, this folder face contacts this second module, when this first, second module was closed, this clamping piece was placed in this space, and is positioned at around this die cavity.

2. ejection shaping die as claimed in claim 1, it is characterized in that, described this first module has the protuberance that one first die joint and is formed at this first die joint, this second module has the recess that one second die joint and is formed at this second die joint, when this first, second module is closed, this first die joint contact with this second die joint with this folder face simultaneously, and this protuberance and this recess enclose this die cavity of formation jointly.

3. ejection shaping die as claimed in claim 1 or 2 is characterized in that, more comprises a drive unit, and this drive unit is located at this second module, is to move back and forth between this primary importance and this second place in order to drive this clamping piece.

4. ejection shaping die as claimed in claim 3 is characterized in that, described this drive unit has at least two cylinders, this each cylinder is divided into the both sides of this second module, this each cylinder has a piston rod, and this clamping piece has at least one butt joint portion, and this docking section is connected with this piston rod.

5. ejection shaping die as claimed in claim 1 or 2 is characterized in that, described this clamping piece has at least one guide rod, and this second module has the guide hole that at least one pair of should guide rod, and this guide rod moves with this clamping piece and moves in this guide hole.

6. ejection shaping die as claimed in claim 1 is characterized in that, described this clamping piece has a hollow-out parts, and this hollow-out parts is to should die cavity.

7. ejection shaping die as claimed in claim 2, it is characterized in that, described this clamping piece have a pair of should protuberance and the hollow-out parts of recess, when this first, second module was closed, the protuberance of this first module passed this hollow-out parts and encloses jointly with the recess of this second module and to form this die cavity.

8. ejection shaping die as claimed in claim 2, it is characterized in that, described this second die joint periphery has at least one first non-slip nosing, the folder face periphery of this clamping piece has at least one second non-slip nosing, when this folder face and this second die joint near the time, the interlock that interlocks of this first non-slip nosing and this second non-slip nosing.

9. ejection shaping die as claimed in claim 2 is characterized in that, the first die joint indent of described this first module forms a storage tank, and when this first, second module was closed, this second die joint and this storage tank constituted this space jointly.

10. ejection shaping die as claimed in claim 2, it is characterized in that, the recess of described this second module has a bottom surface and a side around this bottom surface, and the junction of this bottom surface and this side is surrounded with a pore, and this pore also connects an external pressure source.

11. ejection shaping die as claimed in claim 10 is characterized in that, the aperture of described this pore increases towards the rightabout of this second die joint.

12. ejection shaping die as claimed in claim 2, it is characterized in that, described this second die joint is recessed to form a groove respectively downwards in these recess two sides, and respectively this groove two ends and exterior, and the folder face of this clamping piece also is provided with two grooves that should two grooves.

13. ejection shaping die as claimed in claim 2 is characterized in that, the recess of described this second module has a bottom surface and a side around this bottom surface, and this bottom surface and this side angle are greater than more than 70 degree.

14. ejection shaping die as claimed in claim 2 is characterized in that, described this first module periphery is provided with blade part, and this second module periphery is provided with the cutting blade groove, with so that this first module and this second module when closed, and the surplus limit of removal film of taking advantage of a situation.

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