CN103419378A - Method for manufacturing internal decorative material for vehicle - Google Patents
Method for manufacturing internal decorative material for vehicle Download PDFInfo
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- CN103419378A CN103419378A CN2013101800565A CN201310180056A CN103419378A CN 103419378 A CN103419378 A CN 103419378A CN 2013101800565 A CN2013101800565 A CN 2013101800565A CN 201310180056 A CN201310180056 A CN 201310180056A CN 103419378 A CN103419378 A CN 103419378A
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- 239000000463 material Substances 0.000 title claims abstract description 209
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 109
- 239000000057 synthetic resin Substances 0.000 claims abstract description 109
- 238000002347 injection Methods 0.000 claims abstract description 46
- 239000007924 injection Substances 0.000 claims abstract description 46
- 238000007493 shaping process Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 11
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 3
- 206010053567 Coagulopathies Diseases 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000035602 clotting Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 description 20
- 239000011347 resin Substances 0.000 description 20
- 238000002844 melting Methods 0.000 description 17
- 230000008018 melting Effects 0.000 description 17
- 238000001746 injection moulding Methods 0.000 description 8
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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Abstract
The invention provides a method for manufacturing an internal decorative material for a vehicle, wherein the internal decorative material can reduce the pressure applied on the surface material when forming a substrate. The method comprises: a surface material carrying step of placing the surface material (14) on a lower mold forming face (30A) of a lower mold (30); a followed injection step of injecting a synthetic resin in a molten state to the back face (14B) of the surface material (14) by an injection device (50) arranged above the lower mold (30), and forming a synthetic resin block on the back face (14B); and a followed substrate forming step of moving the upper mold (40) and the lower mold (30) after making the injection device (50) back off above the lower mold (30), closing the upper mold (40) and the lower mold (30) before the synthetic resin block (16) in the molten state is solidified, and extracting and forming the synthetic resin block (16) to forming the substrate; wherein the area (A1) of the synthetic resin block (16) in the bottom view is 5-50% area (A2) of the substrate (11) in the bottom view.
Description
Technical field
The present invention relates to a kind of manufacture method of vehicular interior decorating material material.
Background technology
In the past, as the manufacture method of the vehicular interior decorating material material with base material and skin material, be known to the described method of following patent documentation 1.In the described method of patent documentation 1, by under the state utilizing shaping dies maintenance skin material, to injection fillers thermoplastic resin between the forming face of skin material and shaping dies, forming base material.
Patent documentation 1: TOHKEMY 2005-35244 communique
In above-mentioned manufacture method, for the interior filling thermoplastic resin in the space between the forming face to skin material and shaping dies (die cavity), need to inject thermoplastic resin with higher injection pressure.Thus, the pressure in die cavity raises, and worries to produce damage because skin material being applied with to higher pressure on the appearance of skin material.For example, as long as skin material is the material of fluffing property, will worry the situation (hair collapses) because pressure causes the hair on skin material surface to collapse.In addition, if owing to causing that the Mao Zehui that collapses like this causes aesthetic appearance to descend, and therefore needs to erect hair in subsequent handling.
Summary of the invention
The present invention completes with regard to being based on above-mentioned such situation, and its purpose is to provide a kind of manufacture method that can reduce the vehicular interior decorating material material of the pressure that acts on skin material while forming base material.
In order to address the above problem, the manufacture method of vehicular interior decorating material material of the present invention has following feature: this vehicular interior decorating material material has base material and skin material, the manufacture method of this vehicular interior decorating material material comprises: skin material mounting operation, so that the appearance of above-mentioned skin material loads above-mentioned skin material on the above-mentioned upper surface of above-mentioned counterdie towards the mode of the upper surface of counterdie; Injection process, it is followed above-mentioned skin material mounting operation and carries out, be disposed at the synthetic resin that the injection device of the top of above-mentioned counterdie will dissolve under state by utilization and inject on the back side of the contrary side of above-mentioned appearance with above-mentioned skin material, form the synthetic resin piece on the above-mentioned back side; And base material forming process, it is followed above-mentioned injection process and carries out, make above-mentioned injection device patrix be moved above above-mentioned counterdie after keeping out of the way above above-mentioned counterdie, and above-mentioned dissolve above-mentioned synthetic resin clotting under state solid before by above-mentioned counterdie and above-mentioned patrix mold closing, thereby and above-mentioned synthetic resin piece is carried out to the extrusion molding above-mentioned base material that is shaped; In 5%～50% scope of the area that the area under the overlooking of above-mentioned synthetic resin piece is above-mentioned base material under overlooking.
According to the present invention, by the extrusion molding that has been utilized upper die and lower die to carry out after having injected the synthetic resin piece, base material can be shaped.Thus, owing to filling melting resin the injection moulding without as in the past in the die cavity of closing, therefore without the injection of the injection pressure with higher melting resin.Therefore, with injection moulding, compare, act on the pressure (pressure in die cavity) of skin material in the time of can reducing to be shaped.
In addition, in the present invention, after the synthetic resin piece under having injected the state that dissolves, heat from and other members between contact site transmission (heat radiation).The situation of extrusion molding worry to appear causing being difficult to carry out because of synthetic resin piece cooled and solidified thus.In the present invention, due to the structure that is injection synthetic resin piece on the back side of skin material, therefore with making the synthetic resin piece, directly with the contacted structure of counterdie, compare, the synthetic resin piece is difficult to cooling.
In addition, because the area (proportional with respect to the area with the contacted part of skin material) by by under the overlooking of synthetic resin piece is made as in 5%～50% scope of area under overlooking of base material, can further reduce the contact area between synthetic resin piece and skin material, therefore can further make the synthetic resin piece be difficult to cooling.
In said structure, can be also, complete the formation of above-mentioned synthetic resin piece on the face of an above-mentioned contrary side of above-mentioned skin material in above-mentioned injection process after, at 9 seconds with interior in completing above-mentioned base material forming process, shaping above-mentioned base material.
So, by the base material that as far as possible promptly is shaped after the synthetic resin piece under having injected the state that dissolves, can before the synthetic resin piece cooled and solidified dissolved under state, carry out reliably extrusion molding.
In said structure, can be, in above-mentioned injection process, the melt flow rate (MFR) that dissolves the above-mentioned synthetic resin under state is 10g/10min～40g/10min, above-mentioned synthetic resin piece forms overlooks down the ball shape that is the circular shape.
So, dissolve the melt flow rate (MFR) of the synthetic resin under state and the synthetic resin piece is formed by setting and overlook down the ball shape that is the circular shape, can be rightly the area under the overlooking of synthetic resin piece be set as in 5%～50% scope.
In said structure, can be, in above-mentioned injection process, the above-mentioned synthetic resin dissolved under state is polypropylene, this temperature that dissolves the above-mentioned synthetic resin under state is in the scope of 180 ℃～200 ℃.
Like this, can suppress to cause heat skin material to be caused to the situation of damage because of the excess Temperature of melting resin.
In said structure, can be that, in above-mentioned base material forming process, the squeeze pressure of above-mentioned patrix and above-mentioned counterdie is set in the scope of 0.5MPa～3MPa.
Like this, the squeeze pressure of upper die and lower die can be set as to the low value of squeeze pressure of injection moulding than in the past etc., can be by the mechanism miniaturization relevant to matched moulds.Specifically, in injection moulding in the past, corresponding for the injection pressure with higher, the squeeze pressure of upper die and lower die (mold clamping force) need to be made as to higher pressure (for example, 10MPa left and right).On the other hand, according to said structure, as long as the squeeze pressure of upper die and lower die can push the synthetic resin piece, can adopt the interior pressure of scope of 0.5MPa～3MPa.
In said structure, can be, in above-mentioned base material forming process, after above-mentioned patrix and above-mentioned synthetic resin piece connect to above-mentioned counterdie and above-mentioned the mold closing of the intermode closure pressing speed till completing be set between 70mm/S～200mm/S.
So, by closure pressing speed is set between 70mm/S～200mm/S, can after having injected the synthetic resin piece, as far as possible promptly complete the mold closing of two moulds, thereby can be shaped base material.In addition, can utilize upper die and lower die to press fiercely the synthetic resin piece, thereby be easy to make synthetic resin to be filled in die cavity.
According to the present invention, can provide a kind of manufacture method of vehicular interior decorating material material of the pressure that acts on skin material can reduce the shaping base material time.
The accompanying drawing explanation
Fig. 1 means the cutaway view (figure that means skin material mounting operation) of the building mortion of one embodiment of the present invention.
Fig. 2 means the cutaway view of injection process.
Fig. 3 means the cutaway view of base material forming process.
Fig. 4 means the cutaway view of the state of the base material that has been shaped.
The specific embodiment
Utilize Fig. 1～Fig. 4 that one embodiment of the present invention is described.In the present embodiment, example for the manufacture of the manufacturing installation 20 of vehicular interior decorating material material 10 with used the manufacture method of the vehicular interior decorating material material 10 of manufacturing installation 20.As shown in Figure 4, vehicular interior decorating material material 10 has the skin material 14 on the surface of the tabular base material 11 that consists of synthetic resin (such as thermoplastic resins such as polypropylene) and covering substrates 11.
As such vehicular interior decorating material material 10, can example for example be arranged at the ornament (ornament) of vehicle door interior trim.In addition, skin material 14 is fluffing members of for example its wildness, such as the nonwoven that is the synthetic fibers of polyester, polyethylene etc.In addition, the material of skin material 14 is not limited thereto, and can suitably be changed.As skin material 14, both can use such as woven fabric, looped fabric, foamed resin material (tabular polyurethane) etc., can be also the material without fluffing property.
As depicted in figs. 1 and 2, it is shown in Figure 2 that manufacturing installation 20 has base station 21, counterdie 30, patrix 40, injection device 50().Patrix 40 is for example core, and the face relative with counterdie 30 in patrix 40 is convex.Patrix 40 can utilize not shown drive unit along continuous straight runs slippage.Thus, patrix 40 can be disposed at displacement between common position (position shown in Fig. 3 and Fig. 4) above counterdie 30 and the retreating position (position shown in Fig. 1 and Fig. 2, the position that patrix 40 staggers with respect to counterdie 30 in the horizontal direction) of keeping out of the way from the top of counterdie 30.
Counterdie 30 is for example the chamber mould, and the face relative with patrix 40 in counterdie 30 is concavity.Counterdie 30 is installed on the upper surface of lower mold mounting plate 31.Counterdie 30 and lower mold mounting plate 31 form the structure that can utilize elbow-bar mechanism 60 and cylinder apparatus 70 to rise and descend.
Elbow-bar mechanism 60 has downside connecting rod 61 and upside connecting rod 62.Upper surface at base station 21 is provided with downside link supporting section 22, and the bottom of downside connecting rod 61 is installed in downside link supporting section 22 in the mode that can rotate with respect to downside link supporting section 22 by joint pin 22A.
On the lower surface of lower mold mounting plate 31, in the mode relative with downside link supporting section 22, be provided with upside link supporting section 23.The upper end of upside connecting rod 62 is installed on upside link supporting section 23 in the mode that can rotate with respect to upside link supporting section 23 by joint pin 23A.In addition, joint pin 22A is disposed at position identical on horizontal plane with joint pin 23A.The bottom of the upper end of downside connecting rod 61 and upside connecting rod 62 is connected by means of joint pin 63.
Under the state of piston rod 75 elongations, the straight line that links joint pin 22A and joint pin 23A of take is benchmark, and the top ends of piston rod 75 and joint pin 63 are disposed at a side contrary with cylinder body section 71.Under this state, downside connecting rod 61 forms with upside connecting rod 62 state that is folded into V-shape, and counterdie 30 forms the state (state shown in Fig. 1 and Fig. 2) separated with respect to patrix 40 on above-below direction.
If piston rod 75 is shunk from the state shown in Fig. 1 and Fig. 2, downside connecting rod 61 clockwise rotates centered by joint pin 22A, and upside connecting rod 62 rotates counterclockwise centered by joint pin 23A.Thus, the upside connecting rod 62 and the downside connecting rod 61 that are folded into V-shape extend gradually, and counterdie 30 rises.
Then, if the bond sites between downside connecting rod 61 and upside connecting rod 62 is disposed on the straight line that links joint pin 22A and joint pin 23A, downside connecting rod 61 and upside connecting rod 62 are erectility (state of Fig. 4, two connecting rods 61,62 can't continue the state extended).
In addition, be provided with connecting rod stop part 28 at the position adjacent with downside link supporting section 22.Downside connecting rod 61 under erectility forms the structure that the side with connecting rod stop part 28 connects, and after downside connecting rod 61 and connecting rod stop part 28 connect, clockwise rotating of downside connecting rod 61 is limited.
Like this, in the present embodiment, by driving cylinder body device 70 and elbow-bar mechanism 60, can carry out rising and the decline of counterdie 30.Thus, by making counterdie 30, with respect to the patrix 40 that is disposed at common position, rise, can carry out mold closing, descend by making counterdie 30, can carry out die sinking.In addition, lower mold mounting plate 31 forms following structure: this time mold mounting plate 31 can utilize not shown guide (such as connecting rod etc.) to rise, descend in the mode that keeps flat-hand position.
The counterdie forming face 30A that the part of the face relative with patrix 40 in counterdie 30 is the shape that is corresponding with the appearance 14A of skin material 14.On the other hand, the patrix forming face 40A that the part of the face (lower surface) relative with counterdie 30 in patrix 40 is the shape that is corresponding with the back side (face of a side contrary to the face that disposes skin material 14) of base material 11.
Thus, as shown in Figure 4, patrix 40 and counterdie 30 mold closings state (state of Fig. 4) under, at counterdie 30(counterdie forming face 30A) with patrix 40(patrix forming face 40A) between form the space corresponding with the shape of vehicular interior decorating material material 10.More particularly, if be in counterdie 30, mounting has under the state of skin material 14 carries out mold closing, between the back side of skin material 14 14B and patrix forming face 40A, be formed with die cavity S1(be used to form base material 11 closure formingspace).
As shown in Figure 2, the nozzle 53 that injection device 50 has main part 52 and arranges in the mode of extending downwards from main part 52.Be connected with resin supply pipe (not shown) on nozzle 53, by from resin feedway (not shown), via the resin supply pipe, to nozzle 53, supplying with melting resin, can be from the top injection melting resin of nozzle 53.In addition, although the diameter of nozzle 53 (diameter of ejiction opening) is set in the scope of 10mm～35mm for example, be not limited thereto.
Main part 52 is installed on an end of arm 51.Thus, nozzle 53 forms and can move position arbitrarily in the upper direction of counterdie 30, thereby can be fixed in position arbitrarily.
The manufacture method of the vehicular interior decorating material material 10 of the manufacturing installation 20 that has used present embodiment then, is described.The manufacture method of the vehicular interior decorating material material 10 of present embodiment comprises skin material mounting operation, the injection process that then skin material mounting operation is carried out and the base material forming process that then injection process carries out.
Skin material mounting operation
In skin material mounting operation, patrix 40 is being disposed under the state of retreating position, as shown in Figure 1, skin material 14 is loaded in the upper surface of the counterdie forming face 30A(of counterdie 30 counterdie).Now, the appearance 14A with skin material 14 loads skin material 14 towards the mode of counterdie forming face 30A.Thus, with the face of the back side 14B(side contrary to appearance 14A of skin material 14) mode towards top loaded skin material 14.
Injection process
Then, as shown in Figure 2, make nozzle 53(injection device 50) to the top of skin material 14, move.Relative spacing L1 nozzle 53 is disposed between the top of the upper surface (back side 14B) of skin material 14 and nozzle 53 is for example position of 30mm～90mm.In addition, relative spacing L1 is not limited to this value.
Then, inject melting resin (dissolving the synthetic resin of state) from the top of nozzle 53 towards the back side of skin material 14 14B.In addition, now, as injected synthetic resin, can example polypropylene for example, can be for example than the high temperature of polyacrylic melting point (approximately 160 ℃) by this Temperature Setting.In addition, the temperature of melting resin more high fluidity is higher, thus preferred higher temperature.But, if the excess Temperature of melting resin worries that heat causes damage to skin material 14.Therefore, from suppressing heat, skin material 14 is caused to the such viewpoint of damage, preferably the temperature of melting resin (polypropylene) is for for example below 200 ℃.In addition, from the viewpoint of shaping processability, preferably the temperature of melting resin (polypropylene) is for for example more than 180 ℃.Therefore, as the temperature of melting resin, preferably be set in the scope of for example 180 ℃～200 ℃.
By the back side 14B(upper surface to skin material 14) the injection melting resin, be formed with overleaf as shown in Figure 2 the synthetic resin piece 16 of the state of dissolving on 14B.
The base material forming process
After being on the back side 14B of skin material 14 to have formed synthetic resin piece 16, along continuous straight runs moves injection device 50, and injection device 50 is kept out of the way from the top of counterdie 30.Afterwards, make the top displacement of patrix 40 to counterdie 30.Then, by driving cylinder body device 70, make counterdie 30 increase, carried out the mold closing of patrix 40 and counterdie 30 before the synthetic resin piece 16 that dissolves state solidifies.
Thus, as shown in Figure 3 and Figure 4, utilize patrix 40 and 30 pairs of synthetic resin pieces 16 of counterdie to be pushed.Specifically, synthetic resin piece 16 is extruded between the back side 14B of patrix forming face 40A and skin material 14.Thus, synthetic resin piece 16 is expanded on the 14B of the back side of skin material 14.Then, under the state of the mold closing that has completed patrix 40 and counterdie 30, as shown in Figure 4, and synthetic resin piece 16(base material 11) be filled in die cavity S1.In addition, can suitably set patrix 40 now and the squeeze pressure (mold clamping force) of counterdie 30, for example, can be set in the scope of 0.5MPa～3MPa.
Then, by making to be filled in synthetic resin piece 16 cooled and solidified in die cavity S1 and shaping base material 11.Utilize above operation, with skin material 14, form base material 11, complete the manufacture of vehicular interior decorating material material 10.
In addition, form synthetic resin piece 16 to the time till the mold closing that completes patrix 40 and counterdie 30 in the base material forming process to the back side 14B of skin material 14 and for example be made as in 9 seconds from having completed injection process.In other words, when formed synthetic resin piece 16 in injection process after, the shaping with interior base material 11 in completing the base material forming process in 9 seconds.This reason is, need to before synthetic resin piece 16 cooled and solidified, complete extrusion molding.
In addition, by the synthetic resin piece 16 under state shown in synthetic resin piece 16(Fig. 2) area A 1(under overlooking before utilizing patrix 40 and counterdie 30 to push is proportional with respect to the contact area of 14 of synthetic resin piece 16 and skin materials) be made as base material 11(formed products) and overlook under area A 2(with reference to Fig. 4) 5%～50% scope in.In addition, herein said overlook to refer to observe synthetic resin piece 16(or base material 11 from top) state.
That is, preferably, synthetic resin piece 16 forms the roughly piece of ball shape on 14B overleaf, the contact area that minimizing and skin material are 14.Thus, can dwindle the contact area of 14 of synthetic resin piece 16 and skin materials, can make the required time of synthetic resin piece 16 cooled and solidified long.
In order synthetic resin piece 16 to be formed roughly to ball shape but not stratiform, preferably go up the low material to a certain degree of mobility.As synthetic resin piece 16, preferably use for example material of melt flow rate (MFR) (MFR) in the scope of 10g/10min～40g/10min.Specifically, from the viewpoint of shaping processability, preferably melt flow rate (MFR) (MFR) is more than 10g/10min, in addition, and for synthetic resin piece 16 being made as to roughly ball shape, preferably below 40g/10min.In addition, said melt flow rate (MFR) is for example according to JIS K7210, the value that measures under the condition of 190 ℃ of temperature and 2.16kg load herein.
In addition, in the present embodiment, base material 11 for example be of a size of laterally (vehicle fore-and-aft direction) for 600mm, vertically (be arranged at the short transverse in the situation of vehicle) for 250mm, thickness of slab be 2mm～3mm.In addition, the size of base material 11 is not limited thereto, and can suitably be changed.
In addition, the shape that is formed on the synthetic resin piece 16 on the back side 14B of skin material 14 can suitably be changed according to the shape of base material 11, but for example be preferably, overlooks down the ball shape that is the circular shape.Thus, the synthetic resin piece 16 that extrusion molding forms is easy to the upper Omnibearing even of 14B ground expansion overleaf, is easy to make synthetic resin piece 16 to be filled in die cavity S1.In addition, preferably the position of nozzle 53 (position of injection melting resin) is set in to skin material 14De center (center of fiqure).Thus, when utilizing 30 pairs of synthetic resin pieces 16 of patrix 40 and counterdie to be pushed, synthetic resin piece 16 is easy to expand equably at the gamut of the back side of skin material 14 14B, is preferred.
The effect of present embodiment then, is described.Adopt present embodiment, by utilize patrix 40 and counterdie 30 after having injected synthetic resin piece 16, carry out extrusion molding, base material 11 can be shaped.Thus, owing to filling melting resin the injection moulding without as in the past in closed die cavity, therefore without the injection of the injection pressure with higher melting resin.Therefore, with injection moulding, compare, can dwindle the pressure (pressure in die cavity) that acts on skin material 14 while being shaped, can be suppressed at the upper situation that produces damage of appearance 14A of skin material 14.For example, as long as skin material 14 is the material of fluffing property, just can suppress the situation (hair collapses) because pressure causes the hair on skin material surface to collapse.
In addition, for example in injection moulding in the past, corresponding for the injection pressure with higher, need to using the squeeze pressure (mold clamping force) of higher pressure (for example about 10MPa) as upper die and lower die.On the other hand, in the manufacture method of present embodiment, as long as the pressure of the squeeze pressure of patrix 40 and counterdie 30 for being pushed synthetic resin piece 16, therefore the squeeze pressure of patrix 40 and counterdie 30 can be set as to lower value (in the scope of 0.5MPa～3MPa), can be by the mechanism relevant to matched moulds (elbow-bar mechanism 60, cylinder apparatus 70) miniaturization.In addition, from expanding fully synthetic resin piece 16 and making it be filled in viewpoint such in die cavity S1, preferably squeeze pressure is more than 0.5MPa.
In addition, in the present embodiment, after the synthetic resin piece 16 under having injected the state that dissolves, heat from and other members between contact site transmission (heat radiation).The situation of extrusion molding worry to appear causing being difficult to carry out because of synthetic resin piece 16 cooled and solidified thus.In the present embodiment, due to the structure that adopts injection synthetic resin piece 16 on the 14B of the back side of skin material 14, therefore with making synthetic resin piece 16, directly with as the contacted structure of metal counterdie 30 compare, synthetic resin piece 16 is difficult to cooling.
In addition, due to the area A 1(by by under the overlooking of synthetic resin piece 16 and the area of skin material 14 equitant parts, proportional with respect to the area with skin material 14 contacted parts) be made as in 5%～50% scope of area A 2 under the overlooking of base material 11, can further reduce the contact area of 14 of synthetic resin piece 16 and skin materials, therefore can further make synthetic resin piece 16 be difficult to cooling.
In other words, if the area A 1 under the overlooking of synthetic resin piece 16 is base material 11 overlooks lower more than 50% of area A 2, the contact area increase of 14 of synthetic resin piece 16 and skin materials, easily cause the temperature decline of synthetic resin piece 16.Therefore, worry to have the curing possibility of synthetic resin piece before the extrusion molding that completes synthetic resin piece 16.
In addition, after completing in injection process on the back side 14B of skin material 14 and forming synthetic resin piece 16, at 9 seconds with interior in completing the base material forming process, shaping base material 11.
So, by after the synthetic resin piece 16 under having formed the state that dissolves, as far as possible promptly synthetic resin piece 16 being pushed and forms base material 11, can before synthetic resin piece 16 cooled and solidified that dissolve under state, carry out reliably extrusion molding.
In addition, the toold closing speed of patrix 40 and counterdie 30 (closure pressing speed is the rate of climb of counterdie 30 in the present embodiment) very fast (for example,, more than 70mm/S) preferably.Thus, can as far as possible promptly complete the mold closing of two moulds 40,30 after injection synthetic resin piece 16, base material 11 can be shaped.In addition, toold closing speed is faster, more can utilize two moulds 40,30 fiercely to press synthetic resin piece 16, is easy to make synthetic resin piece 16 to be filled in die cavity S1.In addition, aspect mechanism's (elbow-bar mechanism 60, cylinder apparatus 70) miniaturization that will be relevant to matched moulds, preferably the toold closing speed of patrix 40 and counterdie 30 is made as below 200mm/S.In the present embodiment, for example, will be after patrix forming face 40A and synthetic resin piece 16 connect be set in for example between 70mm/S～200mm/S to the closure pressing speed completed till matched moulds.
In addition, in injection moulding in the past, in order to make the synthetic resin under the state that dissolves, be filled in the die cavity of closing, need the synthetic resin that mobility is higher.Therefore, need using melt flow rate (MFR)s (MFR) be the synthetic resin about 60g/10min～70g/10min for example.On the other hand, owing to being by utilizing 30 pairs of synthetic resin pieces 16 of patrix 40 and counterdie to push to be shaped the method for base material 11, even therefore the mobility of synthetic resin (melting resin) is lower, also can being shaped in the present embodiment.
In addition, in the present embodiment, as synthetic resin piece 16, can use the material of melt flow rate (MFR) in the scope of 10g/10min～40g/10min.Because the synthetic resin relatively high with melt flow rate (MFR) is compared, the relatively low synthetic resin of such melt flow rate (MFR) is the common material circulated on market, therefore can reduce the cost of material.
In addition, in the present embodiment, injection device 50 can be made as with respect to shaping dies (patrix 40 and counterdie 30) structure fully independently.Thus, for example with the structure that injection device is built in shaping dies, compare, can be made as more simple structure.
Other embodiments
The present invention is not limited to utilize above-mentioned narration and the illustrated embodiment of accompanying drawing, and for example, following such embodiment is also included in the technical scope of the present invention.
(1) in the above-described embodiment, use elbow-bar mechanism 60 and cylinder apparatus 70 have carried out mold closing and the die sinking of patrix 40 with counterdie 30, but are not limited thereto.For example, can be also following structure: in the situation that do not use elbow-bar mechanism 60, utilize cylinder apparatus directly to drive counterdie 30.
(2) in the above-described embodiment, adopted by along continuous straight runs and moved the structure that top that patrix 40 and nozzle 53 switch in counterdie 30 disposes the state (state of Fig. 3 and Fig. 4) of patrix 40 and dispose the state (state of Fig. 2) of nozzle 53 above counterdie 30, but be not limited thereto.For example, can be also following structure: fixedly patrix 40 and nozzle 53 along continuous straight runs move counterdie 30.
(3) in the above-described embodiment, can suitably change base material 11(synthetic resin piece 16) material.As base material 11, so long as the material that contains thermoplastic resin gets final product.
(4) in the above-described embodiment, as the vehicular interior decorating material material, example the interior material that uses of ornament, but be not limited thereto.As the vehicular interior decorating material material, as long as there is base material and skin material.For example, as base material, can the example trim panel etc.
Description of reference numerals
10, vehicular interior decorating material material; 11, base material; 14, skin material; The appearance of 14A, skin material; The back side of 14B, skin material (with the face of the contrary side of appearance of skin material); 16, synthetic resin piece; 30, counterdie; 30A, counterdie forming face (upper surface of counterdie); 50, injection device; Area under the overlooking of A1, synthetic resin piece; Area under the overlooking of A2, base material.
Claims (6)
1. the manufacture method of a vehicular interior decorating material material, this vehicular interior decorating material material has base material and skin material, and the manufacture method of this vehicular interior decorating material material comprises:
Skin material mounting operation, so that the appearance of above-mentioned skin material loads the above-mentioned upper surface in above-mentioned counterdie towards the mode of the upper surface of counterdie by above-mentioned skin material;
Injection process, it is followed above-mentioned skin material mounting operation and carries out, be disposed at the synthetic resin that the injection device of the top of above-mentioned counterdie will dissolve under state by utilization and inject on the face of the contrary side of above-mentioned appearance with above-mentioned skin material, form the synthetic resin piece on the face of an above-mentioned contrary side; And
The base material forming process, it is followed above-mentioned injection process and carries out, make above-mentioned injection device patrix be moved above above-mentioned counterdie after keeping out of the way above above-mentioned counterdie, and above-mentioned dissolve above-mentioned synthetic resin clotting under state solid before by above-mentioned counterdie and above-mentioned patrix mold closing, thereby and above-mentioned synthetic resin piece is carried out to the extrusion molding above-mentioned base material that is shaped;
In 5%～50% scope of the area that the area under the overlooking of above-mentioned synthetic resin piece is above-mentioned base material under overlooking.
2. the manufacture method of vehicular interior decorating material material according to claim 1, wherein,
Complete the formation of above-mentioned synthetic resin piece on the face of an above-mentioned contrary side of above-mentioned skin material in above-mentioned injection process after, at 9 seconds with interior in completing above-mentioned base material forming process, shaping above-mentioned base material.
3. the manufacture method of vehicular interior decorating material material according to claim 1 and 2, wherein,
In above-mentioned injection process, the melt flow rate (MFR) that dissolves the above-mentioned synthetic resin under state is 10g/10min～40g/10min, and above-mentioned synthetic resin piece forms overlooks down the ball shape that is the circular shape.
4. the manufacture method of vehicular interior decorating material material according to claim 1 and 2, wherein,
In above-mentioned injection process, the above-mentioned synthetic resin dissolved under state is polypropylene, and this temperature that dissolves the above-mentioned synthetic resin under state is made as in the scope of 180 ℃～200 ℃.
5. the manufacture method of vehicular interior decorating material material according to claim 1 and 2, wherein,
In above-mentioned base material forming process, the squeeze pressure of above-mentioned patrix and above-mentioned counterdie is set in the scope of 0.5MPa～3MPa.
6. the manufacture method of vehicular interior decorating material material according to claim 1 and 2, wherein,
In above-mentioned base material forming process, after above-mentioned patrix and above-mentioned synthetic resin piece connect to above-mentioned counterdie and above-mentioned the mold closing of the intermode closure pressing speed till completing be set between 70mm/S～200mm/S.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-119585 | 2012-05-25 | ||
| JP2012119585A JP2013244659A (en) | 2012-05-25 | 2012-05-25 | Method of manufacturing vehicle interior material |
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| CN103419378A true CN103419378A (en) | 2013-12-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415140A (en) * | 2017-09-07 | 2017-12-01 | 全兴工装设备（南京）有限公司 | Automobile rear-compartment plaque composite molding die and its forming method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102726701B1 (en) * | 2019-12-13 | 2024-11-07 | 현대자동차주식회사 | Trim panel of vehicle integrated with light guide plate and manufacturing method of the panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588364A (en) * | 1985-04-01 | 1986-05-13 | Husky Injection Molding Systems Ltd. | Clamp mechanism |
| CN1073013C (en) * | 1994-06-17 | 2001-10-17 | 亚乐克株式会社 | Laminated body and method of manufacturing the same |
-
2012
- 2012-05-25 JP JP2012119585A patent/JP2013244659A/en active Pending
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- 2013-05-15 CN CN2013101800565A patent/CN103419378A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588364A (en) * | 1985-04-01 | 1986-05-13 | Husky Injection Molding Systems Ltd. | Clamp mechanism |
| CN1073013C (en) * | 1994-06-17 | 2001-10-17 | 亚乐克株式会社 | Laminated body and method of manufacturing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415140A (en) * | 2017-09-07 | 2017-12-01 | 全兴工装设备（南京）有限公司 | Automobile rear-compartment plaque composite molding die and its forming method |
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Application publication date: 20131204 |