CN100460183C - Metal color synthetic resin central , manufacturing method thereof and jet-shaping metal mould - Google Patents
Metal color synthetic resin central , manufacturing method thereof and jet-shaping metal mould Download PDFInfo
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- CN100460183C CN100460183C CNB2005100560540A CN200510056054A CN100460183C CN 100460183 C CN100460183 C CN 100460183C CN B2005100560540 A CNB2005100560540 A CN B2005100560540A CN 200510056054 A CN200510056054 A CN 200510056054A CN 100460183 C CN100460183 C CN 100460183C
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- ring
- transparent resin
- synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1459—Coating annular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14188—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure trimming the article in the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
Abstract
To provide a metal-tone synthetic resin ring which has a metallic appearance, which has the edge formed sharply, which is pleasing in appearance because the ring-shaped top face presents a complete flat when looked at, which has no eject pin marks, and in which, in the case of backlighting, the light emitted along the center of the ring-shaped top face is so devised as to produce no shade and emit light as if drawing a perfect circle. The metal-tone synthetic resin ring comprises a transmissive ring obtained by forming a synthetic resin sheet, which has a metal thin film that is transmissive and can be illuminated, into a shape of a gate in the cross-section and a ring, and a transparent resin ring obtained by injection-molding a transparent resin into a ring shape by a side gate method. The transparent resin ring is installed in contact with the center of the inside top face of the transmissive ring, and, on both sides of the transparent resin ring, opaque resin portions are formed so as to come into contact with the inside top face of the transmissive ring. The metal-tone synthetic resin ring has, in the lower part of the transparent resin ring, between the opaque resin portions of both sides, a shape by the mold core that has been used for positioning the transparent resin ring, as an internal space.
Description
Technical field
But the present invention relates to a kind of metal color synthetic resin central and manufacture method and jet-shaping metal mould of part transillumination, described metal color synthetic resin central by day or present comprehensive metal tone when not having back lighting, the middle body of visible end face width is luminous when the night back lighting.
Background technology
Be used to decorate speedometer, revolution counter or thermometer etc. on the fascia around and the synthetic resin ring that is provided with used following method to make in the past.
As the mode of making above-mentioned synthetic resin ring, have on water white synthetic resin thin slice or film, transfer printing by metal forming, the evaporation of metal or sputter etc. form the metallic film of transmit light, implement black printing from its inboard at the position of removing by serigraphy along the part of the central authorities of end face width, it is processed into the ring-type that the cross section is a type (making コ shape stand upside down the cross sectional shape of a type), the method for repairing again by shapings such as vacuum formings.
The cross section that obtains by said method is the synthetic resin ring of a type, and when carrying out back lighting night, light sees through from the slit portion on the end face that is positioned at ring-type, bright as seen.Yet, when not having back lighting by day, though can see ring-type comprehensively, just end face and side metal tone be as seen, but owing to end face in ring-type, do not implement the slit portion of circle of black printing and the boundary of black printing portion and form very little difference in height, therefore exist and fully flatly to see the end face of ring-type, the shortcoming of aesthetic property difference.
In addition, because the deviation that produces when cross section door type is processed in the deep-draw of synthetic resin thin slice as mentioned above, slit portion is Cheng Zhengyuan not, when back lighting, has the crooked visible problem of slit portion of luminous ring-type.And because the synthetic resin thin slice forms processing by vacuum forming etc., thereby the bight that has cross section door type shape is for sharp-pointed, and aesthetic property is poor, the problem that commodity value is low.
And, as other the mode that forms the synthetic resin ring, existence is inserted the transmission ring in the jet-shaping metal mould and the method for carrying out double-colored shaping, the transmission ring is to be shaped as the above-mentioned synthetic resin thin slice that will grant metallic film to be processed into the ring-type that the cross section is a type, become end face so that do not carry out the slit portion of black printing, repair again and form.
In this double-colored manufacturing process, single cast gate mode of existence as described below and double teeming mouth mode.Single cast gate mode of double-colored shaping, (Fig. 7 (c) is the figure that only represents the plane situation of transparent resin portion 57 and black resin portion 52 by the cross section at Fig. 7 (a)～(c), to in the cross section at the A-A line position of Fig. 7 (c), comprise that the cross section of transmission ring 55 is shown in Fig. 7 (a), the cross section that comprises transmission ring 55 in the cross section at A-A line position is shown in Fig. 7 (b)) in, as Fig. 7 (a) and (b), synthetic resin thin slice 54 is formed the ring-type that the cross section is a type, and the transmission ring 55 that the metallic film 53 that will grant the transmissive illumination forms is installed in the metal die 56, after forming the transparent resin portion 57 that transparent resin constitutes along the inboard central authorities of transmission ring 55, the cast gate 58 that is provided with from any side in the inboard of this transparent resin portion 57 and the outside penetrates black resins 51, forms black resin portion 52 in the both sides of transparent resin portion 57 thus, 52.
Yet, according to single cast gate mode of so double-colored shaping, need the communication portion 59 that black resin 51 flows into usefulness, the communication portion 59 that the black resin 51 of formation and cast gate same number constitutes on the synthetic resin ring of finishing 60 in the opposite side that cast gate 58 is set.Therefore, because when this synthetic resin ring 60 carries out back lighting, in transmission above transparent resin portion 57 and in the transmitted light of visible ring-type, as seen above-mentioned communication portion 59 becomes shade and, thereby has the shortcoming of aesthetic property difference.And, in Fig. 7 (a), and since different about the feed pressure of black resin 51, thereby exist transparent resin portion 57 to tilt to the little side extruding of pressure, can not obtain just round problem.
In addition, in the double teeming mouth mode of double-colored manufacturing process, there are method and method as shown in Figure 8 as shown in Figure 9.Double teeming mouth mode as shown in Figure 8, shown in Fig. 8 (a), after being installed on above-mentioned transmission ring 55 in the metal die 56, the inboard of the core 61 insertion transmission rings 55 of fixation side metal die 56a will be protruded in, by cast gate 58 from two side bottoms that are arranged on this core 61,58 penetrate black resin 51, both sides at core 61 form black resin portion 52, after 52, shown in Fig. 8 (b), by from the cast gate 62 of fixation side metal die 56a black resin portion 52 to both sides, 52 inner space penetrates transparent resin 63, and in the black resin portion 52 of both sides, form transparent resin portion 57 between 52.
Yet, double teeming mouth mode according to this double-colored shaping shown in Figure 8, during the synthetic resin ring 60 finished from the surface, because along can seeing cast gate 62 gate vestiges in the visible transparent resin portion of end face central authorities 57 of synthetic resin ring 60, thereby have the problem that diminishes outward appearance.
In addition, the double teeming mouth mode of double-colored shaping as shown in Figure 9, shown in Fig. 9 (a), be installed in above-mentioned transmission ring 55 in the metal die 56 after, the fixation side metal die 56a that will have a cast gate 62 is inserted in the bottom in the space 64 that the central authorities of core 61 form.Penetrate transparent resins 63 from this cast gate 62, the cooling back is by removing fixation side metal die 56a, and in the inboard central authorities of transmission ring 55, forms transparent resin portion 57 shown in Fig. 9 (b).Then, shown in Fig. 9 (c), penetrate black resin 51 to the both sides of transparent resin portion 57, form black resin portion 52,52 in the both sides of transparent resin portion 57 by cast gate 58,58 from fixation side metal die 56a with cast gate 58,58.
Yet, in the double teeming mouth mode of this double-colored shaping, because the gate vestiges that can see cast gate 62 in the bottom of transparent resin portion 57, thereby also have the problem that diminishes outward appearance.And, in these double-colored manufacturing process,, thereby have to use jemmy at the end face of product owing to die cavity comes to movable side, exist the jemmy vestige to stay fatal shortcoming on the product end face.
And, as prior art, the double-colored formed products of making according to the manufacture method of patent documentation 1, as shown in figure 10, by the translucent resin forming section 67 that the outside at the light-proofness resin formation part 66,66 with peristome 65 forms, the colour painting film 71 that will have the colour painting layer 70 that is made of light shielding part 68,68 and transmittance section 69 forms the gradually cross section door type of open form shape.
Yet,, when back lighting,, thereby have the shortcoming of decreasing outward appearance because the boundary former state of top transmittance section 69 and light shielding part 68 is as seen to the formed products of this patent documentation 1.
Patent documentation 1: Japanese kokai publication hei 6-134805 communique
Summary of the invention
The present invention makes in order to address the above problem a little, but its purpose is to provide a kind of metal color synthetic resin central and manufacture method and jet-shaping metal mould of part transillumination, described metal color synthetic resin central, the sharp-pointed bight that forms synthetic resin ring with metal tone appearance, and the end face of ring-type seems also to present fully plane, thereby aesthetic property is good, the vestige that does not have jemmy, and do not have shade to generate in the light that when back lighting, sends along the central, circular of the end face of ring-type, and can depict just round and luminous.
For achieving the above object, but the illumination metal tone synthetic resin ring of technical scheme 1 described part transmission of the present invention, it is characterized in that, form transmission ring and transparent resin ring, described transmission ring obtains the ring-type that the synthetic resin thin slice formation cross section with metallic film of transmissive illumination is a type, described transparent resin ring is that ring-type obtains with transparent resin with side gate mode reaction-injection moulding, the central authorities of the inboard end face of this transparent resin ring and above-mentioned transmission ring join and are provided with, and in the both sides of above-mentioned transparent resin ring formation opaque resin portion, the inboard end face of itself and above-mentioned transmission ring is joined, the inner space of above-mentioned synthetic resin ring has the shape based on the core of metal die, and the core of described metal die is used in the bottom of above-mentioned transparent resin ring and the position of the above-mentioned transparent resin ring of decision between the opaque resin portion of above-mentioned both sides.
In addition, but the metal color synthetic resin central of technical scheme of the present invention 2 described part transilluminations, is characterized in that the light transmittance of above-mentioned metallic film is 1～50% for technical scheme 1.
In addition, but the metal color synthetic resin central of technical scheme 3 described part transilluminations of the present invention, for technical scheme 1 or 2, it is characterized in that, end face at above-mentioned transmission ring, by serigraphy, the sign or the colour of the some printing of the level printing of certain intervals, certain intervals, scale etc. printed.
In addition, but the manufacture method of the metal color synthetic resin central of technical scheme 4 described part transilluminations of the present invention, it is characterized in that, use first metal die transparent resin to be formed ring-type and form the transparent resin ring by side gate, the transmission ring is installed in the die cavity of second metal die, described transmission ring be with on the surface or the synthetic resin thin slice of the inside with metallic film of transmissive illumination form the ring-type that the cross section is a type, repair again and obtain, and above-mentioned transparent resin ring is being embedded under the determining positions state on the formed recess of the core of above-mentioned second metal die, after the second metal die closure, by above-mentioned transmission ring, in the space that the core of above-mentioned transparent resin ring and above-mentioned second metal die forms, with the opaque resin reaction-injection moulding, and form opaque resin portion in the both sides of above-mentioned transparent resin ring in tunnel type double teeming mouth mode.
In addition, technical scheme 5 described jet-shaping metal moulds of the present invention, it is characterized in that, but make the metal color synthetic resin central of part transillumination, described metal color synthetic resin central is following to be made: with side gate transparent resin is formed ring-type by first metal die, the transmission ring is installed in the die cavity of second metal die, described transmission ring be with on the surface or the synthetic resin thin slice of the inside with metallic film of transmissive illumination form the ring-type that the cross section is a type, repair again and to form, the transparent resin ring that uses the core of second metal die will use above-mentioned first metal die to form inserts in the core that has with the chimeric recess of above-mentioned transparent resin ring, closed second metal die, by above-mentioned transparent resin ring, above-mentioned cross section is the transmission ring of a type, in the space that forms with the core of second metal die, in a plurality of tunnel type double teeming mouth modes with the opaque resin reaction-injection moulding.
But in the metal color synthetic resin central of part transillumination of the present invention, owing to form the transmission ring of outward appearance, to be formed by forevacuum shaping etc. and be processed into the ring-type that the cross section is a type, the transmission ring of repairing again is at the metal die internal shaping, thereby compare with vacuum forming etc., higher forming pressure effect is arranged, present the sharp-pointed outward appearance that forms in bight.Certainly, the vestige of the jemmy on the end face that does not have the transmission ring on this product presents good outward appearance.
In addition, the transparent resin ring that is arranged on the inboard of transmission ring forms as follows: because when the reaction-injection moulding of opaque resin, under the state of the recess of the core that is embedded in metal die by the decision position, under not crooked stationary state of not toppling over, carry out the reaction-injection moulding of opaque resin portion with the pressure of equalization in its both sides, thereby the transparent resin ring does not take place crooked when this is shaped, along the central authorities of end face, depict just round in the inboard of transmission ring with not crooked state.And because this transparent resin ring forms in the side gate mode, gate vestiges forms at the sidepiece of transparent resin ring, thereby the transmission of light can not hinder back lighting the time.
And, the inboard that is the transmission ring of a type in the cross section of metallic film with transmissive illumination, the end face of the end face of central authorities' transparent resin ring and the opaque resin portion of its both sides does not have difference in height, one-tenth is with the shape of the end face of the state contact transmission ring on plane, thereby when back lightings such as night, plane earth is seen the end face of transmission ring fully, can send just round light attractive in appearance.In addition, do not have the vestige of jemmy, present good outward appearance at the end face of product.
Description of drawings
Fig. 1 (a) is the overall perspective of the synthetic resin ring of embodiments of the invention 1, (b) is the part perspective view in the cross section of expression synthetic resin ring.
When Fig. 2 (a) is the formation transparent resin ring of the embodiment of the invention 1, vertical view with transparent resin ring of sprue portion, cross gate portion and gate part, (b) being the metal die that is used to form this transparent resin ring, (c) is the cutaway view of representing the transparent resin ring in (b) with C.
Fig. 3 (a) is the overall perspective of the transmission ring of embodiments of the invention 1, (b) is the part perspective view in the cross section of expression transmission ring.
Fig. 4 is the cutaway view of metal die that expression is used to form the synthetic resin ring of the embodiment of the invention 1.
Fig. 5 (a) is the diagrammatic top view of metal die structure that expression is used to form the synthetic resin ring of embodiment 1, (b) is the cutaway view of the synthetic resin ring that is shaped, (c) is the phantom of the synthetic resin ring shown in D in (b).
Fig. 6 is the part perspective view of the synthetic resin ring of expression embodiments of the invention 2.
Fig. 7 is the figure that is used to illustrate synthetic resin ring in the past, (a) be illustrated in the cross section situation when in the A-A line cross section of (c) the transmission ring being set, (b) be illustrated in the cross section situation when in the B-B line cross section of (c) the transmission ring being set, (c) only represent not have the plane situation of the transparent resin portion and the black resin portion of transmission ring by the cross section.
Fig. 8 (a) and (b) be another cutaway view that is used to make the metal die of synthetic resin ring.
Fig. 9 (a)～(c) is another cutaway view that is used to make the metal die of synthetic resin ring.
Figure 10 is the cutaway view of the double-colored formed products of patent documentation 1.
The specific embodiment
Followingly embodiments of the invention are described with reference to accompanying drawing.
According to synthetic resin ring 1 of the present invention, as Fig. 1 (a) with (b), form transmission ring 3 and transparent resin ring 4, described transmission ring 3 forms the ring-type that the cross section is a type (making コ shape stand upside down the cross sectional shape of a type) with the synthetic resin thin slice with metallic film (expression in the drawings) of transmissive illumination and obtains, described transparent resin ring 4 is that ring-type obtains with transparent resin by side gate mode reaction-injection moulding, this transparent resin ring 4 is arranged to join with the central authorities of the inboard end face of transmission ring 3, and form opaque resin portion 5,5 join in the both sides of transparent resin ring 4 and the inboard end face of transmission ring 3, as the inner space, have the shape based on the core 25 (with reference to Fig. 4) of metal die as the bottom of transparent resin ring 4, the core 25 of described metal die is used in both sides opaque resin portion 5, the position of decision transparent resin ring 4 between 5.
Above-mentioned synthetic resin ring 1 is narrated in more detail, transmission ring 3 is following and make: as Fig. 3 (a) and (b), surface or the inside at water white synthetic resin thin slice or film, transfer printing by metal forming, the evaporation of metal or sputter etc. form can transmitted ray metallic film, it is processed into the ring-type that the cross section is a type by shapings such as vacuum formings, repairs again and make.
Therefore, this transmission ring 3, if the same metal tone that presents based on metallic film with end face 3a and two sides 3b, 3b is irradiation light then transmitted light.
Shown in Fig. 1 (b), the end face 3a of transmission ring 3 forms in the inboard has the skewed of the gradient of dipping down, and this is for the consideration on the decoration of the transmission ring 3 that forms ring-type, is not the shape that must form inclination.
The optical transmission performance of above-mentioned transmission ring 3 can be adjusted according to the thickness of metallic film, and preferably making light transmittance by its thickness adjustment is 1～50%.
In addition, shown in Fig. 1 (b), the end face central authorities of inner space that are the transmission ring 3 of a type with the cross section join and the transparent resin ring 4 that forms, are that ring-type obtains by the side gate mode with the transparent resin reaction-injection moulding as described later.Its cross sectional shape is whole to be rectangle longitudinally, is the plane above, is provided with the inboard central state of contact of end face 3a that is the transmission ring 3 of a type with above-mentioned cross section.
In addition, form opaque resin portion 5,5 in the both sides of above-mentioned transparent resin ring 4.These opaque resin portions 5,5, as described later, be by the recess 26 (with reference to Fig. 4) that above-mentioned transparent resin ring 4 is embedded in core 25 by the state of decision position under, by what the opaque resin reaction-injection moulding of black etc. is formed in the both sides of this transparent resin ring 4.
Therefore, these opaque resin portions 5,5, above it with the interior side contacts of the end face 3a of transmission ring 3, and with the transparent resin ring 4 that clips central authorities state of contact forms.Therefore, synthetic resin ring 1 as inner space 6, has the shape of removing core 25 (with reference to Fig. 4) as the bottom of transparent resin ring 4, and described core 25 is used for the position of decision transparent resin ring 4 between both sides opaque resin portion 5,5.
According to above-mentioned formation, form the transmission ring 3 of the outward appearance of synthetic resin ring 1, owing to will be processed into the ring-type that the cross section is a type by shapings such as vacuum formings in advance, and repair the transmission ring that obtains again and in metal die, form, thereby the bight of cross section door type present sharp-pointed outward appearance.
In addition, be arranged on the transparent resin ring 4 of the inside of transmission ring 3, by under the determining positions state of the recess 26 (with reference to Fig. 4) that is embedded in core 25 described later, the state that maintenance is clipped by the opaque resin portion 5,5 of both sides, can depict just round there not to be crooked stationary state along the inboard central of end face 3a of transmission ring 3, and, because this transparent resin ring 4 forms in the side gate mode, therefore gate vestiges 4a (with reference to Fig. 2 (c)) forms the optical transmission in the time of can not hindering back lighting in the side of transparent resin ring 4.
And, the inboard that is the transmission ring 3 of a type in the cross section of metallic film with transmissive illumination, because the end face of the end face of central transparent resin ring 4 and the opaque resin portion 5 of its both sides, for there not being difference in height, shape with the interior side contacts of the end face 3a of the state on plane and transmission ring 3, thereby when back lightings such as night, plane earth is seen the end face of the ring-type of transmission ring 3 fully, can send just round light with state attractive in appearance.
The manufacture method of above-mentioned synthetic resin ring 1 shown in Fig. 2 (a)～(c), at first, uses first metal die 10 by side gate transparent resin 11 to be formed ring-type, and forms transparent resin ring 4.Just transparent resin ring 4 is shown in Fig. 2 (c), form the cross section and be roughly rectangle, the curved shape chimeric with the recess 26 of aftermentioned core 25 formed at the bottom, above in addition is and the corresponding shape of heeling condition of the end face 3a of above-mentioned transmission ring 3, and integral body has ring-type.
Shown in Fig. 2 (b), form die cavity 12, described die cavity 12 has the shape of the transparent resin ring 4 that forms such shape, end at the cross gate 13 that is arranged at metal die 10 is provided with cast gate 14, this cast gate 14 be positioned at the metal die that forms transparent resin ring 4 die cavity 12 sidepiece and form.The sprue bush 15 of the metal die 10 that process is such after cooling off, is opened metal die 10 with transparent resin 11 reaction-injection mouldings of molten condition, can obtain formed products 17 thus.The plane of this formed products 17 by sprue portion 16, cross gate portion 18 and the gate part 19 of removing formed products 17, can obtain forming the transparent resin ring 4 of Fig. 2 (a) periphery shown in Fig. 2 (a).
The transparent resin ring 4 that forms by above-mentioned side gate mode, shown in Fig. 2 (c), because gate vestiges 4a is formed on the sidepiece of transparent resin ring 4, thereby as mentioned above, the optical transmission in the time of can not hindering back lighting.
On the other hand, as Fig. 3 (a) and (b), prepare a kind of parts, its be with on the surface or the synthetic resin thin slice of the inside with metallic film of transmissive illumination be shaped and be processed into the ring-type that the cross section is a type, repair again and obtain just above-mentioned transmission ring 3.As shown in Figure 4, this transmission ring 3 is installed in the die cavity 21 of second metal die 20.
Just as Fig. 4 or shown in Figure 5, in the fixation side metal die 20a of second metal die 20, form die cavity 21 with the shape that is used to install transmission ring 3, inboard sprue bush 22a and outside sprue bush 22b (with reference to Fig. 5 (a)) are set in its both sides.These sprue bushes 22a, 22b form from cross gate 24a, the 24b of die joint 23 through tilting, and arrive the tunnel gate mode of cast gate 25a, 25b. Such cast gate 25a, 25b is communicated with die cavity 21 to the both sides of the outstanding core 25 of central authorities in the die cavity 21 of fixing metal mould 20a.
In addition, movable side metal die 20b has in the die cavity 21 of fixation side metal die 20a to the outstanding core 25 of central authorities, be formed for the recess 26 of chimeric above-mentioned transparent resin ring 4 on the top of this core 25, determine the position of the synthetic resin ring 1 in the die cavity 21 by chimeric transparent resin ring 4 on this recess 26.
According to above-mentioned formation, if closed metal die 20, then become the recess 26 that is embedded in core 25 transparent resin ring 4 top be installed in the inside top surface state of contact of the transmission ring 3 in the die cavity 21.Under this state, if penetrate the opaque resin 27 of black resins etc. to die cavity 21 from cast gate 25a, 25b through cross gate 24a, 24b from sprue bush 22a, 22b, then contacting with the end face 3a of transmission ring 3, and clip under the state of transparent resin ring 4 of central authorities, injection forms opaque resin portion 5 in transmission ring 3 that is a type by transparent resin ring 4, cross section and space that core 26 forms.
Open metal die 20 after the cooling, because formed products 30 is cut the 28a of cross gate portion, 28b and gate part 29a, the 29b that tilts, thereby on formed products 30, stay gate part 29a, 29b, but pass through gate part 29a, 29b are excised from formed products 30, and can obtain as Fig. 1 (a) and the synthetic resin ring 1 (b).
Embodiment 2
In the manufacture method of above-mentioned synthetic resin ring 1, as shown in Figure 6, can use in surface or the inside and have on the synthetic resin thin slice of metallic film of transmissive illumination, level printing 32 by screen printing mode printing certain intervals, the some printing 33 of certain intervals, scale etc. indicate or colored synthetic resin, make synthetic resin ring 1.
The present invention can be as the ornament around speedometer, revolution counter or the thermometer etc. on the instrument board of decorating automobile, purposes as other also can also be used for the decoration of the circular scale on the household appliances as the ornament of the guidance panel of the air-conditioning of automobile.
Synthetic resin ring of the present invention is not limited to circle, the shapes such as polygon ring that can adopt the ring that is formed by circular arc and straight line or be formed by straight lines.
Claims (4)
1. but the metal color synthetic resin central of a part transillumination, it is characterized in that, form transmission ring and transparent resin ring, described transmission ring obtains the ring-type that the synthetic resin thin slice formation cross section with metallic film of transmissive illumination is a type, described transparent resin ring is that ring-type obtains with transparent resin with side gate mode reaction-injection moulding, the central authorities of the inboard end face of this transparent resin ring and described transmission ring join and are provided with, and in the both sides of described transparent resin ring formation opaque resin portion, the inboard end face of itself and described transmission ring is joined, the inner space of described synthetic resin ring has the shape based on the core of metal die, and the core of described metal die is used in the bottom of described transparent resin ring and the position of the described transparent resin ring of decision between the opaque resin portion of described both sides.
2. but the metal color synthetic resin central of part transillumination as claimed in claim 1 is characterized in that, the light transmittance of described metallic film is 1～50%.
3. but the metal color synthetic resin central of part transillumination as claimed in claim 1 or 2, it is characterized in that, on the end face of described transmission ring,, the level printing that is selected from certain intervals, the some printing of certain intervals, sign or the colour in the scale are printed by serigraphy.
4. but the manufacture method of the metal color synthetic resin central of a part transillumination, it is characterized in that, use first metal die transparent resin to be formed ring-type and form the transparent resin ring by side gate, the transmission ring is installed in the die cavity of second metal die, described transmission ring be with on the surface or the synthetic resin thin slice of the inside with metallic film of transmissive illumination form the ring-type that the cross section is a type, repair again and obtain, and under being embedded in described transparent resin ring by the determining positions state on the formed recess of the core of described second metal die, after the second metal die closure, by described transmission ring, in the space that the core of described transparent resin ring and described second metal die forms, with the opaque resin reaction-injection moulding, and form opaque resin portion in the both sides of described transparent resin ring in tunnel type double teeming mouth mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004378484A JP3972311B2 (en) | 2004-12-28 | 2004-12-28 | Metal-tone synthetic resin ring and manufacturing method thereof |
| JP2004378484 | 2004-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1796081A CN1796081A (en) | 2006-07-05 |
| CN100460183C true CN100460183C (en) | 2009-02-11 |
Family
ID=36735339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100560540A Expired - Fee Related CN100460183C (en) | 2004-12-28 | 2005-03-21 | Metal color synthetic resin central , manufacturing method thereof and jet-shaping metal mould |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3972311B2 (en) |
| KR (1) | KR100727551B1 (en) |
| CN (1) | CN100460183C (en) |
| HK (1) | HK1090883A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4742341B2 (en) * | 2005-11-07 | 2011-08-10 | 株式会社サカイヤ | Manufacturing method of ring-integrated display panel |
| US9662856B2 (en) | 2007-12-28 | 2017-05-30 | Samsung Electronics Co., Ltd. | Display, front cover thereof, mold of front cover, and manufacturing method for front cover |
| US8339535B2 (en) | 2007-12-28 | 2012-12-25 | Samsung Electronic Co., Ltd. | Display, front cover thereof, mold of front cover, and manufacturing method for front cover |
| JP5204624B2 (en) * | 2008-11-04 | 2013-06-05 | カルソニックカンセイ株式会社 | Decorative material |
| JP2010280099A (en) * | 2009-06-03 | 2010-12-16 | Sakaiya:Kk | Synthetic resin molding and method for manufacturing the same |
| JP5885188B2 (en) * | 2011-08-11 | 2016-03-15 | 矢崎総業株式会社 | Metal-tone dial plate and method for producing the metal-tone dial plate |
| KR101238078B1 (en) | 2012-10-04 | 2013-02-27 | 정은수 | Split ring mold and method of manufacturing the same and split ring |
| KR20140050467A (en) * | 2012-10-19 | 2014-04-29 | 현대모비스 주식회사 | Decoration device for car |
| KR101927482B1 (en) | 2017-09-05 | 2019-03-12 | 주식회사 파인테크닉스 | Die casting mold having central injection structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06106572A (en) * | 1992-09-29 | 1994-04-19 | Nissha Printing Co Ltd | Two-color molded product and its manufacture |
| JPH06134805A (en) * | 1992-10-29 | 1994-05-17 | Nissha Printing Co Ltd | Two-color molded article and production thereof |
| JPH11188740A (en) * | 1997-12-26 | 1999-07-13 | Pentel Kk | Apparatus for polymerizing and molding two kinds of resin materials |
| JP2002160261A (en) * | 2000-11-22 | 2002-06-04 | Marutaka Kanagata:Kk | Two-color molding method for molded article consisting of resins of different kind and resin molded article molded thereby |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3964953B2 (en) | 1997-02-12 | 2007-08-22 | 日本写真印刷株式会社 | Matte insert film and matte insert molded product manufacturing method |
| KR100324574B1 (en) | 1999-07-08 | 2002-02-16 | 이종석 | Metal mold for a injection molding |
| JP2003300228A (en) * | 2002-04-10 | 2003-10-21 | Marutaka Kanagata:Kk | Key sheet molding mold |
-
2004
- 2004-12-28 JP JP2004378484A patent/JP3972311B2/en active Active
-
2005
- 2005-03-08 KR KR1020050019010A patent/KR100727551B1/en not_active IP Right Cessation
- 2005-03-21 CN CNB2005100560540A patent/CN100460183C/en not_active Expired - Fee Related
-
2006
- 2006-10-19 HK HK06111545.1A patent/HK1090883A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06106572A (en) * | 1992-09-29 | 1994-04-19 | Nissha Printing Co Ltd | Two-color molded product and its manufacture |
| JPH06134805A (en) * | 1992-10-29 | 1994-05-17 | Nissha Printing Co Ltd | Two-color molded article and production thereof |
| JPH11188740A (en) * | 1997-12-26 | 1999-07-13 | Pentel Kk | Apparatus for polymerizing and molding two kinds of resin materials |
| JP2002160261A (en) * | 2000-11-22 | 2002-06-04 | Marutaka Kanagata:Kk | Two-color molding method for molded article consisting of resins of different kind and resin molded article molded thereby |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3972311B2 (en) | 2007-09-05 |
| CN1796081A (en) | 2006-07-05 |
| JP2006181890A (en) | 2006-07-13 |
| HK1090883A1 (en) | 2007-01-05 |
| KR100727551B1 (en) | 2007-06-14 |
| KR20060076139A (en) | 2006-07-04 |
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