CN1654184A - Synthetic resin forming product and producing method thereof - Google Patents
Synthetic resin forming product and producing method thereof Download PDFInfo
- Publication number
- CN1654184A CN1654184A CNA2004100445213A CN200410044521A CN1654184A CN 1654184 A CN1654184 A CN 1654184A CN A2004100445213 A CNA2004100445213 A CN A2004100445213A CN 200410044521 A CN200410044521 A CN 200410044521A CN 1654184 A CN1654184 A CN 1654184A
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- China
- Prior art keywords
- synthetic resin
- forming
- resin board
- diameter hole
- large diameter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/14—Fastening of cover or lid to box
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/40—Wall-mounted casings; Parts thereof or accessories therefor
- H02B1/42—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/12—Distribution boxes; Connection or junction boxes for flush mounting
- H02G3/121—Distribution boxes; Connection or junction boxes for flush mounting in plain walls
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
- H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
- H02G3/381—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts in ceilings
Abstract
To provide a highly precise synthetic resin molded product having a large diameter hole at the same axial position as the small diameter hole formed to a synthetic resin sheet and causing no unequal shift in the pattern or another design applied to the synthetic resin sheet for the purpose of decoration, and its manufacturing method. The synthetic resin molded product has the synthetic resin sheet applied to a part or the whole of the surface and end surface thereof for the purpose of decoration. In a state that the small diameter hole 4 of the synthetic resin sheet 2 is fitted to the outer periphery of the projection of the sprue bush 16 provided to a fixed mold 15, the synthetic resin sheet 2 is mounted between the fixed mold 15 and a movable mold 17 and the large diameter hole forming part 19 positioned around the small diameter hole 4 of the synthetic resin sheet 2 to form a hole larger than the small diameter hole is formed to the movable mold 17. A molten resin 24 is injected in the mold having a predetermined shape formed around the large diameter hole forming part 19 through a plurality of the tunnel gate 21 allowed to communicate with the sprue bush 16 to form the large diameter hole 5.
Description
Technical field
The present invention relates to a kind of forming synthetic resin product and manufacture method thereof, these forming synthetic resin product have decorated synthetic resin board as control panel, clock dial, the display board of household appliances and the front panel of acoustic product etc. in the instrument board of metrograph and tachometer etc., the air-conditioning equipment on its surface.
Background technology
Up to now, as making as above-mentioned product, the surface has the method for the forming synthetic resin product of synthetic resin board, uses injection molding method, wherein in the injection moulding mould, inserts the synthetic resin board after decorating and injects molten resin.
As the example of this manufacturing process, the record by patent documentation 1 describes.In the document, disclose and in mould, inserted trimmed synthetic resin board, behind the closing molding, dissolve shaping resin by injection between mould, obtain the method that the surface has the forming synthetic resin product of synthetic resin board.
But, in this method, because use has the mould of drop gate (from annotating the cast gate of the direct connection chamber in road), when the synthetic resin board in the mould is provided with the hole, be injected into molten resin in the mould by the hole on the synthetic resin board around the back side to synthetic resin board, can not make product.
In addition, also exist use to have the forming process of the mould of side gate (filling the cast gate of moulding material from the side, chamber), but owing to vestige at the residual cutting cast gate of the end face of formed products, therefore be unsuitable for emphasizing the product of end face outward appearance, in addition, when the man-hour that adds of handling or grinding above-mentioned gate vestiges, there is the too high problem of cost.And then, by using the method for this side gate, be what impossible to obtain at the formed products that has synthetic resin board full week of end face from manufacture method.
In addition, also exist patent documentation 2 to be put down in writing, use has the manufacturing process of the mould of tunnel gate (end of running channel sinks to below the line of demarcation of mould, fills the cast gate of the mode of moulding material from the projection of bottom, chamber).The manufacturing process that the document is put down in writing, side at tunnel gate is provided with synthetic resin board, and when synthetic resin board is provided with the hole, use slide cores in order to make molten resin not flow to the back side of synthetic resin board, owing to need embed synthetic resin board therein, therefore have the shortcoming of mould costliness.
Patent documentation 1: the spy opens flat 6-106562 communique (the 1st, 2 page)
Patent documentation 2: the spy opens flat 7-290497 communique (the 1st, 2 page)
Summary of the invention
The forming synthetic resin product that obtain according to the present invention, part or all of surface and end face has synthetic resin board, and the forming synthetic resin portion of side has than the big hole of bore dia that is formed on this synthetic resin board overleaf.
As its concrete example, can enumerate in the instrument board of metrograph and tachometer etc. or the clock dial etc., be used to insert the axle of rotary indicator and the jack that is provided with.Particularly, in speedometer that can back lighting etc., if jack light leak from instrument panel center, then can not be as product, therefore must make the bore dia that is arranged on the positive synthetic resin board little, make the bore dia in the forming synthetic resin portion that is arranged at the back side big,, prevent light leak by seal member being installed in this large-diameter portion.
Above-mentionedly technology and problem points that patent documentation 1,2 relates to have been enumerated, and as the prior art related with the present invention, exist and make synthetic resin board with small diameter bore and forming synthetic resin portion respectively with large diameter hole, again by connecting the manufacture method that they obtain, and compare with integrally formed, have the problem that operation increases, cost uprises.
And then, as the other problems point, beyond near cast gate is positioned at mould central authorities and under the situation of the side gate that constitutes, if molten resin is expelled to the back side of synthetic resin board, flowing and pressure when then injecting owing to molten resin, synthetic resin board is stretched unevenly towards the direction that flows.In this case, synthetic resin board is inserted in the mould so that the surface after decorating contact with moveable die, but this pattern and the skew of style occurrence positions when on synthetic resin board, printing, owing to will repeatedly revising repeatedly, so the cost rising.
In addition, as the other problems point,, on cast gate is handled, make the thickness attenuation of molten resin on every side, and the attenuation meeting causes synthetic resin board to shrink, degraded appearance if use aciculiform cast gate (ピ Application ゲ one ト).And then, in these cases,, then have the vestige of pin on the synthetic resin board and influence outward appearance if protrudent pin is set on moveable die, if the structure of protrudent pin is set on fixed mould, then mould becomes complicated, cost raises.
In addition, under the tunnel gate mode of in patent documentation 2, enumerating, synthetic resin board with plumbness in the side, so when the bore dia of the boring ratio synthetic resin board of molten resin portion is big, can not uses slide core and can not get product.
In addition, do not exist under the situation of synthetic resin board, when back lighting, exist from the problem of light leak takes place on every side even be provided with the last branch of end face of the forming synthetic resin portion of synthetic resin board on the surface.
The present invention In view of the foregoing proposes, purpose provides a kind of forming synthetic resin product and manufacture method thereof, part or all of the surface of these forming synthetic resin product and end face has synthetic resin board, can obtain having on the position corresponding with the small diameter bore that forms on the synthetic resin board forming synthetic resin product of large diameter hole with high accuracy, motif and other styles are rare inhomogeneous on the synthetic resin board that is provided with on its surface.
To achieve these goals, forming synthetic resin product of the present invention the 1st, form than on part or all of the surface of forming synthetic resin portion and end face, be provided with decorated after the bigger large diameter hole of small diameter bore of synthetic resin board, it is characterized in that: under the chimeric state of the small diameter bore of protuberance periphery that is arranged at the sprue bushing on the fixed mould and described synthetic resin board, this synthetic resin board is installed between described fixed mould and the moveable die, simultaneously, around the small diameter bore of described synthetic resin board, on described moveable die, form the large diameter hole formation portion bigger than this small diameter bore, by a plurality of tunnel gates that are communicated with described sprue bushing, molten resin is injected in the mould of the regulation shape that forms around this large diameter hole formation portion, thereby forms described large diameter hole.
In addition, the 2nd invention is the 1st described forming synthetic resin product, it is characterized in that the ink film of described synthetic resin board thick at least 4 μ when having individual layer, and/or the ink film of thick at least 8 μ when two-layer at least.
In addition, the 3rd invention is according to the 1st or 2 described forming synthetic resin product, it is characterized in that the thickness of described synthetic resin board is 0.1mm～1.0mm.
In addition, the 4th invention is according to the 1st, 2 or 3 described forming synthetic resin product, it is characterized in that, it is 1%～50% the metal or the paper tinsel of metal tone that described synthetic resin board has the luminous ray transmissivity.
In addition, the 5th invention is according to the 1st, 2,3 or 4 described forming synthetic resin product, it is characterized in that, described synthetic resin board has and utilizes mould and the space pattern or the style of figuration.
And then, the 6th invention is the manufacture method of forming synthetic resin product, be used for forming the big large diameter hole of small diameter bore than the synthetic resin board that on part or all of the surface of forming synthetic resin portion and end face, is provided with, it is characterized in that: under the chimeric state of the small diameter bore of protuberance periphery that is arranged at the sprue bushing on the fixed mould and described synthetic resin board, this synthetic resin board is installed between described fixed mould and the moveable die, simultaneously, around the small diameter bore of described synthetic resin board, on described moveable die, form the large diameter hole formation portion bigger than this small diameter bore, by a plurality of tunnel gates that are communicated with described sprue bushing, molten resin is injected in the mould of the regulation shape that forms around this large diameter hole formation portion, thereby forms described large diameter hole.
In addition, the 7th invention is the manufacture method according to the 6th described forming synthetic resin product, it is characterized in that, by be arranged on the described sprue bushing that is provided with on the described fixed mould and the described large diameter hole formation portion that on described moveable die, is provided with and the structure of described a plurality of tunnel gates at least two positions, form a plurality of forming synthetic resin product.
In addition, the 8th invention is according to the manufacture method of the 6th or 7 described forming synthetic resin product, it is characterized in that, described synthetic resin board quilt is figuration in advance.
In addition, the 9th invention is according to the manufacture method of the 6th, 7 or 8 described forming synthetic resin product, it is characterized in that the shape that need give described synthetic resin board setting in mould.
And then the 10th invention is according to the manufacture method of the 6th, 7,8 or 9 described forming synthetic resin product, it is characterized in that, the formula that the digs recess (Jue Write body recess of burying described synthetic resin board underground is set in mould).
According to above the present invention, can close the integrally formed forming synthetic resin product of forming synthetic resin portion that obtain to have the synthetic resin board of small diameter bore and have large diameter hole by a mould, compare with the existing method that the forming synthetic resin portion with large diameter hole is connected with the synthetic resin board with small diameter bore that will separate, process number reduces, and can make at low cost.
And, the large diameter hole that in forming synthetic resin portion, forms, owing to be shaped by the large diameter hole formation portion that is provided with on moveable die, so the shaping vestige is attractive in appearance, and owing to use tunnel gate, formed products integral body is also attractive in appearance.
In addition, according to the present invention, under the state of coverage of synthetic resin plate, carrying out extrusion process on the peripheral part of formed products, different with the manufacturing process of existing use side gate, the end face of formed products does not have gate vestiges, does not need the attrition process of formed products end face, can reduce cost.
In addition, according to the present invention, following the problems of the prior art can not take place, promptly, use cast gate be positioned near the mould central authorities beyond and taken place during the side gate that constitutes, synthetic resin board to the flow direction of molten resin by the problem of uneven pulling, the pattern after printing on the synthetic resin board etc. and the problem of style occurrence positions skew, and revise repeatedly, print once more and problem that the cost that causes raises.
Promptly, according to the present invention, the injection path of molten resin is undertaken by cast gate and a plurality of tunnel gate that is arranged at formed products substantial middle position, therefore, formed products is whole evenly to be shaped, the fluctuation of product is few, owing to do not need prior art like that repeatedly to revise, so significantly improved quality and productivity.
In addition, manufacturing method according to the invention both can utilize mould to carry out good figuration, also reduced patterned appearance difference, obtained the good forming synthetic resin product of shape and patterned appearance.
In addition, can use the decoration of metal forming, the forming synthetic resin product that can obtain good metal tone appearance and carry out good back lighting as the synthetic resin board that constitutes the formed products surface.
Description of drawings
Fig. 1 is the front plan view of the forming synthetic resin product of the embodiment of the invention 1.
Fig. 2 is the A-A line sectional drawing of Fig. 1.
Fig. 3 is a perspective view of seeing the forming synthetic resin product of the embodiment of the invention 1 from dorsal part.
Fig. 4 is the sectional drawing of manufacture method of the forming synthetic resin product of the expression embodiment of the invention 1, represents the state after mould is closed.
Fig. 5 is the sectional drawing of manufacture method of the forming synthetic resin product of the expression embodiment of the invention 1, and expression is the state behind the injection molten resin in mould.
Fig. 6 is the sectional drawing of manufacture method of the forming synthetic resin product of the expression embodiment of the invention 1, represents the state after mould is opened.
Fig. 7 is a perspective view of seeing the forming synthetic resin product of the embodiment of the invention 2 from dorsal part.
Fig. 8 is the sectional drawing of diametrical position that is equivalent to the forming synthetic resin product of the embodiment of the invention 2.
Fig. 9 is the sectional drawing of manufacture method of the forming synthetic resin product of the expression embodiment of the invention 3, represents the state after mould is closed.
The specific embodiment
Below, describe with reference to accompanying drawing by embodiments of the invention.
[embodiment 1]
As shown in Figure 1, 2, on as the synthetic resin board 2 of the metrograph shown in the forming synthetic resin product 1 of present embodiment with the front setting of panel, be formed centrally the small diameter bore 4 that is used to insert the rotating shaft 6 that gauge pointer uses therein, and around it, form scale and numerical value 7, and then form the window 8 that trip odometer is used in the bottom.
In addition, when the central authorities of synthetic resin board 2 form above-mentioned small diameter bore 4,, form the large diameter hole 5 bigger than small diameter bore 4 in the central authorities of forming synthetic resin portion 3 to formation position that should small diameter bore 4.
As shown in Figure 2, the internal diameter of the small diameter bore 4 of synthetic resin board 2 and the large diameter hole 5 of forming synthetic resin portion 3 be not both because, under the rotating shaft 6 with gauge pointer is inserted into state in this small diameter bore 4 and the large diameter hole 5, for not from the small diameter bore 4 of synthetic resin board 2 that constitutes the surface to outside light leak, on the inner rim of the large diameter hole 5 of forming synthetic resin portion 3, need to exist to be used for the chimeric space that prevents the ring 9 of light leak.
In addition, in above-mentioned forming synthetic resin product 1, as shown in Figure 2, the synthetic resin board 2 that constitutes the surface inwardly has depression from peripheral shape 2a, simultaneously, forms the figuration of projecting shape gradually towards central authorities.As described later, the shape of such synthetic resin board 2, can by with synthetic resin board 2 in advance figuration be the shape of regulation, or the shape that need give synthetic resin board 2 is set in mould to be formed.
In addition, though do not illustrate, synthetic resin board 2 also can have space pattern or the style that utilizes mould to give.As an example, with the scale and numerical value 7 three-dimensionals on forming synthetic resin product 1 surface.
As above-mentioned, in order to give synthetic resin board 2 different shapes, the thickness of preferred synthetic resin board 2 is 0.1mm～1.0mm.If the thickness of this synthetic resin board 2 is thinner than 0.1mm, then synthetic resin board 2 has the danger of breaking during figuration, if thicker than 1.0mm, then is difficult to clearly give the shape of regulation.
In addition, as shown in Figure 1, the synthetic resin board of being made by transparent Merlon etc. 2 is used on the surface of forming synthetic resin product 1, and forms the ink film 11 of whole black on the surface of this synthetic resin board 2, and the outside of ink film 11 constitutes non-forming section 13.
For ink film 11, when the ink film thickness on being arranged on synthetic resin board 2 was the such individual layer of scale and numerical value 7, the thickness of ink film 11 was at least 4 μ; When being such two-layer at least of black background, the thickness of ink film 11 is at least 8 μ, thereby can back lighting (バ Star Network ラ イ テ イ Application グ).In this case, thinner than 8 μ when two-layer at least if ink film thickness is thinner than 4 μ when individual layer, can produce pin hole, light leak during transmission illumination and can not back lighting.
In addition, synthetic resin board 2 can have the metal forming of aluminium, chromium, silver, nickel etc. of transmission of visible light 1%～50% or the paper tinsel of metal tone.In this case, if transmission of visible light is lower than 1%, then during transmission illumination owing to cross dark and impracticable.If transmission of visible light is than 50% height, then reflection destroys the outward appearance of metal tone less.
On the other hand, as shown in Figure 3, if from the back side of above-mentioned forming synthetic resin product 1, forming synthetic resin portion 3 forms the regulation shapes, therein near the heart around form the shank 12 that usefulness is installed.This forming synthetic resin portion 3 is made of transparent synthetic resin, on the speed scale and numerical value 7 that light can be incided have above-mentioned light transmission.But, for not from these forming synthetic resin product 1 around light leak, the sidepiece of this peripheral shape 2a and previous section are carried out the painted of black equally.
As above-mentioned, enumerated speedometer and be used as an example of forming synthetic resin product 1 of the present invention, and in the formed products of Fig. 1～Fig. 3, had non-forming section 13 on every side with panel, formed on this non-forming section 13 in shaping and added the jack 14 that the alignment pin that uses man-hour is used.But, should remove by non-forming section 13 by punch process etc.In addition, as described later,,, there is not the shape of non-forming section 13 around just can obtaining, i.e. the final profile of formed products from being shaped processing at first according to the present invention.
Below, the method for utilizing the present invention to make above-mentioned forming synthetic resin product 1 is described.In the present embodiment, synthetic resin board 2 uses under the flat condition of figuration not, and punch process is the outer shape of regulation, and about assigned position on form the jack 14 of location usefulness.
As shown in Figure 4, formed the mold shape that to give synthetic resin board 2 on the fixed mould 15, sprue bushing 16 has been set in the central.The end of this sprue bushing 16 has from interface to the side-prominent protuberance 16b in chamber 27 1, periphery at this protuberance 16b, the chimeric central small diameter bore 4 that is pre-formed on synthetic resin board 2 is being installed in synthetic resin board 2 between fixed mould 15 and the moveable die 17 under this state.That is, the protuberance 16b of sprue bushing 16 have can with the central small diameter bore 4 tight chimeric external diameters of synthetic resin board 2.
In addition, fixing on the fixed mould 15 from interface to the side-prominent alignment pin 18 of moveable die 17.When closing molding, this alignment pin 18 is inserted among the pin-and-hole 18a that is formed on the moveable die 17.
On the other hand, on moveable die 17, form the large diameter hole formation portion 19 of small diameter bore 4 larger diameters than synthetic resin board 2 central authorities (that is, than the protuberance 16b of sprue bushing 16 the bigger major diameter of external diameter).In addition, the shaping dies 20 that forms chamber 27 on every side of this large diameter hole formation portion 19 with the regulation shape that need give forming synthetic resin portion 3.
And then the formula that the digs recess 26 of peripheral part (non-forming section 13) of synthetic resin board 2 is buried in setting underground on moveable die 17.
In addition, the forming synthetic resin portion 3 of forming synthetic resin product 1 possesses the above-mentioned shank 12 that is used to install product, therefore, forms the mold shape 12b (with reference to Fig. 4) corresponding with the shape of shank 12 on moveable die 17.But,, therefore come corresponding with the structure that possesses not shown slide core on the moveable die 17 because the end of this shank 12 has undercutting (the ア Application ダ カ Star ト) 12a of portion of hook shape.
And then, the tunnel gate 21 that is communicated with the bottom of above-mentioned sprue bushing 16 is set on the moveable die 17.This tunnel gate 21 is connected with the projection (ボ ス) 22 that is provided with perpendicular to forming synthetic resin portion 3, constitutes the circulation path that arrives in the chamber 27 through this projection 22.In addition, because when mould opens and closes, forming section (the jut 22a of Fig. 5) that is made of projection 22 and the forming section (the tunnel gate 21a of Fig. 5) that is made of tunnel gate 21 cut off as shown in Figure 6 automatically, so illustrated tunnel gate 21 need be set to have with respect to interface 45 °～60 ° inclination angle.
In addition, on the moveable die 17, in a little position at interval, bottom from above-mentioned sprue bushing 16 Z pin 23 is set, Z-shaped the 23a that becomes by this end hooks the state (with reference to Fig. 5) of annotating road portion 16a bottom.And then position corresponding with chamber 27 on moveable die 17 is provided with outstanding pin 25.
As shown in Figure 5, by above-mentioned mould structure, never the never illustrated nozzle of the cylinder molten resin supplied 24 of illustrated injection machine flows through tunnel gate 21 through sprue bushing 16, and then injects in the chamber 27 through projection 21.
Like this, if molten resin 24 is injected in the chamber 27, by temperature and the injection pressure that molten resin has, synthetic resin board 2 distortion are the mold shape (shaping dies 20) of corresponding fixed mould 15 by figuration.In addition, on the sidepiece of the peripheral shape of forming synthetic resin product 1, under the state of coverage of synthetic resin plate 2, carry out extrusion process.
Afterwards, as shown in Figure 6, molten resin 24 cooling curings in the chamber 27, after operate not shown slide core and removing the undercut portions 12a of shank 12, if open interface, outstanding after a while slightly 25 and 23 startups of Z pin.At this moment, utilize protrudent pin 25 to make forming synthetic resin product 1 outstanding from moveable die 17, utilize Z pin 23 to make notes road 16a of portion and tunnel gate 21a outstanding from moveable die 17 integratedly, by this outstanding operation, tunnel gate 21a cuts off automatically from jut 22a.
As shown in Figure 6,, at first take out forming synthetic resin product 1, then take out and annotate road 16a of portion and the 21a of tunnel gate portion opening under the state of mould.In addition, because the jut 22a that remains on the forming synthetic resin product 1 is unwanted, so can be by back processing with its cut-out.
[embodiment 2]
As Fig. 7, shown in Figure 8, the forming synthetic resin product 1 of present embodiment, be applicable to the panel that metrograph is for example used, be formed for inserting the small diameter bore 4 of the rotating shaft 6 that gauge pointer uses in the center that constitutes its surperficial synthetic resin board 2, around it, form scale and numerical value 7, and then forming window 8 that trip odometer uses etc. in the bottom, above each point is identical with the foregoing description formation.
But, in the present embodiment, the periphery of synthetic resin board 2 is carried out extrusion process in advance, and carry out punch process, make its do not possess as above-mentioned embodiment around non-forming section 13, the state that on the peripheral shape 2a of forming synthetic resin product 1 sidepiece, is capped shaping with synthetic resin board 2.
In addition, as shown in Figure 9, in this manufacture method, the shaping dies 20 of fixed mould 15 and moveable die 17 has the cavity shape consistent with the net shape of forming synthetic resin product 1, does not form the formula that the digs recess 26 (with reference to Fig. 5) that is used to bury underground non-forming section 13 on every side as embodiment 1.In addition, can be identical with embodiment 1, use has the mould of sprue bushing 16 or tunnel gate 21, in the central authorities of forming synthetic resin product 1, and integrally formed small diameter bore 4 with synthetic resin board 2 and than the forming synthetic resin portion 3 of its bigger large diameter hole 5.
In addition, in this embodiment, during shaping, also can use not only periphery but also all be the synthetic resin board 2 of regulation shape, or in mould, synthetic resin board 2 be provided with the shape that need give that coming figuration is the shape of regulation by figuration in advance.
As above-mentioned, embodiment 1 and embodiment 2 are illustrated, but among each embodiment, sprue bushing 16 by will being arranged at fixed mould 15 1 sides and be arranged at the large diameter hole formation portion 19 of moveable die 17 1 sides and the structure of tunnel gate 21 etc. is provided with at least two positions can form a plurality of forming synthetic resin product 1.
In addition, forming synthetic resin product of the present invention, in each embodiment, the panel of using with the speedometer of automobile is a concrete example, and the present invention is not limited to this, go for having small diameter bore on the synthetic resin board in other synthetical resin products, forming synthetic resin portion has forming synthetic resin product and the manufacture method thereof than its bigger large diameter hole simultaneously.
Forming synthetic resin product of the present invention and processing method thereof, can be used as in the display board and then other forming synthetic resin product of instrument board, the control panel in the air-conditioning equipment, clock dial, household appliances of metrograph and tachometer etc., have small diameter bore on the synthetic resin board, forming synthetic resin portion has forming synthetic resin product and the manufacture method thereof than its bigger large diameter hole simultaneously.
Claims (10)
1. forming synthetic resin product, formed than on part or all of the surface of forming synthetic resin portion and end face, be provided with decorated after the small diameter bore bigger large diameter hole of synthetic resin board, it is characterized in that: with under the small diameter bore of described synthetic resin board and the chimeric state of the protuberance periphery that is arranged at the sprue bushing on the fixed mould, this synthetic resin board is installed between described fixed mould and the moveable die, simultaneously, around the small diameter bore of described synthetic resin board, the large diameter hole formation portion bigger than this small diameter bore forms on described moveable die, by a plurality of tunnel gates that are communicated with described sprue bushing, molten resin is injected in the mould of the regulation shape that forms around this large diameter hole formation portion, thereby forms described large diameter hole.
2. forming synthetic resin product according to claim 1 is characterized in that, the ink film of thickness at least 4 μ when described synthetic resin board has individual layer, and/or the ink film of thickness at least 8 μ when two-layer at least.
3. forming synthetic resin product according to claim 1 and 2 is characterized in that, the thickness of described synthetic resin board is 0.1mm～1.0mm.
4. according to claim 1,2 or 3 described forming synthetic resin product, it is characterized in that it is 1%～50% the metal forming or the paper tinsel of metal tone that described synthetic resin board has the luminous ray transmissivity.
5. according to claim 1,2,3 or 4 described forming synthetic resin product, it is characterized in that described synthetic resin board has and utilizes mould and the space pattern or the style of figuration.
6. the manufacture method of forming synthetic resin product, be used for forming the big large diameter hole of small diameter bore than the synthetic resin board that on part or all of the surface of forming synthetic resin portion and end face, is provided with, it is characterized in that: with under the small diameter bore of described synthetic resin board and the chimeric state of the protuberance periphery that is arranged at the sprue bushing on the fixed mould, this synthetic resin board is installed between described fixed mould and the moveable die, simultaneously, around the small diameter bore of described synthetic resin board, the large diameter hole formation portion bigger than this small diameter bore forms on described moveable die, by a plurality of tunnel gates that are communicated with described sprue bushing, molten resin is injected in the mould of the regulation shape that forms around this large diameter hole formation portion, thereby forms described large diameter hole.
7. the manufacture method of forming synthetic resin product according to claim 6, it is characterized in that, by at least two positions, being arranged on described sprue bushing that described fixed mould one side is provided with and, forming a plurality of forming synthetic resin product in the described large diameter hole formation portion that described moveable die one side is provided with and the structure of described a plurality of tunnel gates.
8. according to the manufacture method of claim 6 or 7 described forming synthetic resin product, it is characterized in that described synthetic resin board quilt is figuration in advance.
9. according to the manufacture method of claim 6,7 or 8 described forming synthetic resin product, it is characterized in that, the shape that need give described synthetic resin board is set in mould.
10. according to the manufacture method of claim 6,7,8 or 9 described forming synthetic resin product, it is characterized in that, the formula that the digs recess of burying described synthetic resin board underground is set in mould.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35368/2004 | 2004-02-12 | ||
| JP2004035368A JP3988082B2 (en) | 2004-02-12 | 2004-02-12 | Synthetic resin molded product and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1654184A true CN1654184A (en) | 2005-08-17 |
| CN100427287C CN100427287C (en) | 2008-10-22 |
Family
ID=34908341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100445213A Active CN100427287C (en) | 2004-02-12 | 2004-05-12 | Synthetic resin forming product and producing method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3988082B2 (en) |
| KR (1) | KR100620279B1 (en) |
| CN (1) | CN100427287C (en) |
| HK (1) | HK1076425A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267214A (en) * | 2010-06-07 | 2011-12-07 | 松下电器产业株式会社 | Resin molding method, die device, and resin molded article |
Families Citing this family (6)
| 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 |
| JP4946275B2 (en) * | 2006-08-31 | 2012-06-06 | カシオ計算機株式会社 | Dial and clock |
| FR2916380B1 (en) * | 2007-05-21 | 2009-07-31 | Saint Gobain | METHOD AND DEVICE FOR OVERMOULTING A GLASS ELEMENT BY A SEAL PORTION COMPRISING AN INSERT, GLAZING AND INSERT IN PARTICULAR FOR THIS METHOD. |
| JP5244426B2 (en) * | 2008-03-12 | 2013-07-24 | カルソニックカンセイ株式会社 | Skin material insert molding apparatus and molding method |
| JP5187426B2 (en) * | 2011-10-28 | 2013-04-24 | カシオ計算機株式会社 | Dial, mold and clock |
| JP7231402B2 (en) * | 2018-12-21 | 2023-03-01 | 花王株式会社 | decorative sheet |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06106562A (en) * | 1992-09-29 | 1994-04-19 | Nissha Printing Co Ltd | Manufacture of insert molded product |
| US5804117A (en) * | 1994-04-05 | 1998-09-08 | Toyoda Gosei Co., Ltd. | Molding method for resin articles |
| JP3740558B2 (en) * | 2000-12-13 | 2006-02-01 | サカイヤ銘版株式会社 | Synthetic resin molded product and method for producing the same |
-
2004
- 2004-02-12 JP JP2004035368A patent/JP3988082B2/en not_active Expired - Lifetime
- 2004-05-07 KR KR1020040032246A patent/KR100620279B1/en not_active IP Right Cessation
- 2004-05-12 CN CNB2004100445213A patent/CN100427287C/en active Active
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2005
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267214A (en) * | 2010-06-07 | 2011-12-07 | 松下电器产业株式会社 | Resin molding method, die device, and resin molded article |
| CN102267214B (en) * | 2010-06-07 | 2013-12-25 | 松下电器产业株式会社 | Resin molding method and die device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3988082B2 (en) | 2007-10-10 |
| CN100427287C (en) | 2008-10-22 |
| JP2005225050A (en) | 2005-08-25 |
| HK1076425A1 (en) | 2006-01-20 |
| KR100620279B1 (en) | 2006-09-14 |
| KR20050081142A (en) | 2005-08-18 |
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