CN101855055A - Mold structure for rectangular parallelepiped product - Google Patents
Mold structure for rectangular parallelepiped product Download PDFInfo
- Publication number
- CN101855055A CN101855055A CN200980100956A CN200980100956A CN101855055A CN 101855055 A CN101855055 A CN 101855055A CN 200980100956 A CN200980100956 A CN 200980100956A CN 200980100956 A CN200980100956 A CN 200980100956A CN 101855055 A CN101855055 A CN 101855055A
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- CN
- China
- Prior art keywords
- rectangular parallelepiped
- side mold
- parallelepiped product
- composition surface
- mould
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A mold structure in which a cavity having an inner volume corresponding to a rectangular parallelepiped product (4, 40, 400) is formed. At least a pair of surfaces among three pairs of opposed surfaces of the cavity is tilted relative to the direction of extraction of the product.
Description
Technical field
The present invention relates to a kind of mould structure of rectangular parallelepiped product.
Background technology
When utilizing mould to make to be shaped as the rectangular parallelepiped product of optical element, as shown in figure 10, in the figure of the die cavity 102 of the movable side mold 104 ' of accommodating rectangular parallelepiped product 100, form molding angle on the horizontal face with respect to the number of unmolulding directions z1 angle of inclination γ of movable side mold 104 '.About forming molding angle, the technology (for example with reference to patent documentation 1) that the known columnar mould column that has ejection shaping mould that usefulness is set is related.; under this situation that the molding angle is formed at the rectangular parallelepiped product side; angulation θ will increase the molding angular metric between the lower surface of rectangular parallelepiped product 100 and the side adjacent with this lower surface; because the angle between adjacent 2 becomes the obtuse angle; therefore; this rectangular parallelepiped product is accurate not to be cuboid, need carry out machining sometimes in subsequent handling.
As other technologies, known as follows: as shown in figure 11, except that fixed side mold 103 and movable side mold 104, between these 2 moulds, be arranged on the sliding panel 105 that slides on the above-below direction, form concavity, after rectangular parallelepiped product 100 ' is shaped, this sliding panel 105 is moved on number of unmolulding directions y1 up.
Like this, in mould structure in the past,, can not produce bad situations such as the breaking of the so-called stress cracking that is called as product, sticking type, product is not taken out from mould with not damaging by the structure that employing is slided sliding panel 105.Perhaps, except sliding panel, be formed as described above the molding angle, also can not produce bad situation ground equally product is taken out.
, state in the use in the structure of sliding panel, because this slide construction causes die cost, operation to increase.In addition, if form the molding angle, as mentioned above, the width of drip molding produces error, is difficult for making all faces and adjacent face formation right angle, can not improve the precision of rectangular parallelepiped product.
Patent documentation 1: the Japan Patent spy opens the 2002-337189 communique
Summary of the invention
The present invention does for solving the problems of the technologies described above, its purpose is to provide a kind of mould structure of rectangular parallelepiped product, this mould structure does not adopt the additional molding angle structure that is arranged at the slider structure of mould and is formed at product, and drip molding successfully can be taken out from mould.
The present invention is a kind of mould structure, comprising: fixed side mold; And when die sinking away from this fixed side mold and be limited in movably mobile side mold on the number of unmolulding directions, be formed with die cavity with rectangular parallelepiped product volume corresponding, that have rectangular parallelepiped product in the said fixing side mold and the docking section of mobile side mold, in the 3 relative opposites of above-mentioned die cavity, the face relative with a number of unmolulding directions opposite is in addition tilted with respect to above-mentioned number of unmolulding directions.
The present invention can provide a kind of mould structure of rectangular parallelepiped product, and this mould structure does not adopt the additional molding angle structure that is arranged at the slider structure of mould and is formed at product, drip molding successfully can be taken out from mould.
Description of drawings
Fig. 1 (a) makes the stereogram of composition surface with respect to the mould of fore-and-aft tilt, and Fig. 1 (b) is the cutaway view that the state of molding angle effect is played on the inclined plane of explanation die cavity.
Fig. 2 (a) makes the stereogram of composition surface with respect to the mould of lateral inclination, and Fig. 2 (b) is the cutaway view that the state of molding angle effect is played on the inclined plane of explanation die cavity.
Fig. 3 makes the stereogram of composition surface with respect to the mould of vertical and horizontal inclination.
Fig. 4 be change Fig. 3 fixed side mold towards the stereogram of representing.
Fig. 5 is the cutaway view during from the mould of transverse observation Fig. 3.
Fig. 6 is the cutaway view when observing the mould of Fig. 3 from the top.
Fig. 7 is explanation with the mobile side mold pull-up of the mould of Fig. 5, the cutaway view of die cavity of actual molding angle when rectangular parallelepiped product is taken out from mould.
Fig. 8 is the cutaway view of the display unit of the rectangular parallelepiped product made of applications exploiting mould of the present invention.
Fig. 9 is the phantom of the display unit of Fig. 8.
Figure 10 is the key diagram of molding angle in the past.
Figure 11 is the figure that the mould of slider structure in the past is described.
The specific embodiment
Below, in order to illustrate in greater detail the present invention, describe being used to implement best mode of the present invention with reference to accompanying drawing.
Embodiment 1
Among Fig. 1 (a), about fixed side mold 2, similar as its composition surface 2a with the docking section that cooperates mould is fulcrum tilt angle alpha rotatably with respect to the XY face of quadrature three-dimensional system of coordinate, with the X-axis.Similar as the composition surface 3a with the docking section that cooperates the mould butt joint of movable side mold 3 is fulcrum tilt angle alpha rotatably with respect to the XY face of quadrature three-dimensional system of coordinate, with the X-axis.Composition surface 3a tilts at the incline direction along composition surface 2a.
The rectangular parallelepiped product 4 that is filled in die cavity is as shown in being removed among Fig. 1 (a), in addition, shown in Fig. 1 (b), roughly relative a pair of opposite face is with respect to number of unmolulding directions z 1 tilt angle alpha of movable side mold 3 on Y direction, and angle [alpha] plays a role as the molding angle.By making this roughly relative a pair of face tilt on Y direction, a pair of opposite face that intersects with number of unmolulding directions z1 is also inevitable to tilt with respect to number of unmolulding directions z1.In addition and since roughly on Y direction relative a pair of opposite face have the relation vertical with adjacent face, thereby under the state of the characteristic of keeping rectangular parallelepiped product, have actual molding angle.
In the present embodiment example, in 3 pairs of opposite faces that constitute rectangular parallelepiped product, actual molding angle can only formed on a pair of opposite face relative on the Y direction roughly.Only can be applicable to situation to the mirror surface accuracy of this a pair of opposite face requirement necessity.
Among Fig. 2 (a), about fixed side mold 20, as its composition surface 20a with the docking section that cooperates mould similar with respect to the XY face of quadrature three-dimensional system of coordinate, with the Y-axis be fulcrum rotatably, with respect to the XY face tilt angle beta of quadrature three-dimensional system of coordinate.As the composition surface 30a with the docking section that cooperates mould butt joint of movable side mold 30 similar with the Y-axis be fulcrum rotatably, with respect to the XY face tilt angle beta of quadrature three-dimensional system of coordinate.Herein, composition surface 30a tilts at the incline direction along composition surface 20a.
The rectangular parallelepiped product 40 that is filled in die cavity is as shown in being removed among Fig. 2 (a), in addition, shown in Fig. 2 (b), roughly relative a pair of opposite face (20a, 30a) is with respect to the number of unmolulding directions z1 inclination angle beta of movable side mold 30 on Z-direction, and angle beta plays a role as the molding angle.By make this roughly on X-direction a relative opposite tilt with respect to number of unmolulding directions z1, a pair of opposite face that intersects with number of unmolulding directions z1 also certainty tilt with respect to number of unmolulding directions z1.
Because this a pair of opposite face has the relation vertical with adjacent face, thereby under the state of the characteristic of keeping rectangular parallelepiped product, has actual molding angle.
In the present embodiment example, in 3 pairs of opposite faces that constitute rectangular parallelepiped product, actual molding angle can only formed on a pair of opposite face relative on the X-direction roughly.Only can be applicable to situation to the mirror surface accuracy of this a pair of opposite face requirement necessity.
In above embodiment example 1,2, to making arbitrary to tilting with respect to number of unmolulding directions significantly in 2 pairs of opposite faces except the face relative with number of unmolulding directions z1, the mode that forms actual molding angle under the state of the characteristic of keeping rectangular parallelepiped product is illustrated.Below, all tilt about 2 pairs of opposite faces except that the face relative with respect to number of unmolulding directions with number of unmolulding directions z1, by this, the face relative with number of unmolulding directions z1 is also inevitable to tilt with respect to number of unmolulding directions, thereby under the state of the characteristic of keeping rectangular parallelepiped product, on all faces, form actual molding angle.
Among Fig. 3, about fixed side mold 200, as itself and the composition surface 200a of the docking section that cooperates mould XY face with respect to the quadrature three-dimensional system of coordinate, with the X-axis is the fulcrum rotation, be the fulcrum rotation then with the Y-axis, by this, form above-mentioned embodiment example 1 and 2 synthetic inclinations.Equally, about movable side mold 300, as itself and the composition surface 300a of the docking section that cooperates mould XY face with respect to the quadrature three-dimensional system of coordinate, with the X-axis is the fulcrum rotation, be the fulcrum rotation then with the Y-axis, by this, form above-mentioned embodiment example 1 and 2 synthetic inclinations.Composition surface 300a tilts at the incline direction along composition surface 200a.Fig. 4 is in order to observe the composition surface side preferably, the figure that rotation fixed side mold 200 is represented.
Fig. 5 represents the cross section when directions X (laterally) is observed this die cavity 400C, and Fig. 6 represents the cross section when Y direction (top) is observed this die cavity 400C.Observe as can be known, composition surface 300a, 300A, 200a, 200A tilt with respect to number of unmolulding directions z 1 on X, Y, all directions of Z.In addition as can be known, the 3 adjacent faces that constitute die cavity 400C are formed at fixed side mold 200, and 3 remaining faces are formed at movable side mold 300, are interdependent each other.
In this mould structure, when rectangular parallelepiped product 400 is taken out, as shown in Figure 7 from the observed cross section of X-direction.Fig. 7 is from the observed figure of transverse direction, utilizes molding angle of the present invention, forms the molding angle on all directions that need, so that observed situation is identical therewith from the top, by this, rectangular parallelepiped product 400 successfully can be taken out.
In the present invention, owing to do not need as in the past, to make rectangular parallelepiped product itself to have the molding angle, therefore, all faces and adjacent face are shaped with meeting at right angles.In addition, by abolishing routine in the past such slider structure, can reduce the operation that is used for sliding action, and can cut down die cost and process time.
In above embodiment example, done illustration with rectangular parallelepiped product, but be not limited thereto, can be widely used in the part forming of the perpendicularity that requires face, flatness, minute surface etc., also can be widely used in being shaped as parallelogram, cube etc. and mould hexahedron friction, that do not require surface accuracy.
As implement the rectangular parallelepiped product 400 shown in the mode example for example can be and be utilized as the part (LGP) of the display part of audio product.As Fig. 8, shown in Figure 9, diffusion materials evenly distributes in the inside of LGP 500, and is also luminous equably by the diffusion materials propagation from the light of light source 501, illuminates LCD (display board) 502.In above-mentioned rectangular parallelepiped product 400, the end of reception from the incident of light source 501 required and the perpendicularity of adjacent face, the smoothness of face etc., make by utilizing mould of the present invention, can be shaped accurately, and can from mould, successfully take out.
Industrial utilizability
As mentioned above, the mould structure of rectangular parallelepiped product involved in the present invention does not adopt the additional molding angle structure that is arranged at the slider structure of mould and is formed at product, for molded article successfully being taken out from mould, make in 3 opposites that are formed at fixed side mold and the die cavity of the docking section of mobile side mold, an opposite relative with number of unmolulding directions and other another opposites or whole 3 opposites tilt with respect to number of unmolulding directions, therefore, be applicable to the so hexahedral mould structure that requires surface accuracy of rectangular parallelepiped product of optical element.
Claims (3)
1. the mould structure of a rectangular parallelepiped product comprises:
Fixed side mold; And
Mobile side mold, this moves on the number of unmolulding directions that leaves described fixed side mold when side mold is restricted to die sinking and is removable,
Be formed with the die cavity with rectangular parallelepiped product volume corresponding, that have rectangular parallelepiped product in the described fixed side mold and the docking section of mobile side mold,
It is characterized in that,
In the 3 relative opposites of described die cavity, an opposite relative with number of unmolulding directions and an other opposite are tilted with respect to described number of unmolulding directions.
2. the mould structure of a rectangular parallelepiped product comprises:
Fixed side mold; And
Mobile side mold, this moves on the number of unmolulding directions that leaves described fixed side mold when side mold is restricted to die sinking and is removable,
Be formed with the die cavity with rectangular parallelepiped product volume corresponding, that have rectangular parallelepiped product in the described fixed side mold and the docking section of mobile side mold,
It is characterized in that,
The 3 relative opposites of described die cavity are all tilted with respect to number of unmolulding directions.
3. the mould structure of rectangular parallelepiped product as claimed in claim 2, it is characterized in that, adjacent 3 of described die cavity with cuboid volume corresponding with described rectangular parallelepiped product are made of fixed side mold, and remaining 3 of described die cavity are made of mobile side mold.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-086752 | 2008-03-28 | ||
| JP2008086752 | 2008-03-28 | ||
| PCT/JP2009/001091 WO2009119022A1 (en) | 2008-03-28 | 2009-03-11 | Mold structure for rectangular parallelepiped product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101855055A true CN101855055A (en) | 2010-10-06 |
| CN101855055B CN101855055B (en) | 2013-05-15 |
Family
ID=41113236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980100956.6A Expired - Fee Related CN101855055B (en) | 2008-03-28 | 2009-03-11 | Mold structure for rectangular parallelepiped product |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5084904B2 (en) |
| CN (1) | CN101855055B (en) |
| WO (1) | WO2009119022A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03264320A (en) * | 1990-03-15 | 1991-11-25 | Olympus Optical Co Ltd | Mold for injection molding |
| JPH05278062A (en) * | 1992-04-02 | 1993-10-26 | Fuji Electric Co Ltd | Mold for transparent resin-sealed semiconductor device |
| CN2838919Y (en) * | 2005-09-30 | 2006-11-22 | 佛山市顺德区汉达精密电子科技有限公司 | Mould with auxiliary mould-opening spring block structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07152808A (en) * | 1993-11-26 | 1995-06-16 | Toyota Motor Corp | Designing method and design support system |
| JP3264320B2 (en) * | 1996-11-05 | 2002-03-11 | ソニー株式会社 | Image encoding apparatus and method, and image decoding apparatus and method |
| JP2000185326A (en) * | 1998-12-22 | 2000-07-04 | Matsushita Electric Works Ltd | Creation of cavity shape of mold |
| JP2000263558A (en) * | 1999-03-12 | 2000-09-26 | Nifco Inc | Plastic molded article with displaying part and method for forming displaying part of plastic molded article |
-
2009
- 2009-03-11 CN CN200980100956.6A patent/CN101855055B/en not_active Expired - Fee Related
- 2009-03-11 WO PCT/JP2009/001091 patent/WO2009119022A1/en active Application Filing
- 2009-03-11 JP JP2010505302A patent/JP5084904B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03264320A (en) * | 1990-03-15 | 1991-11-25 | Olympus Optical Co Ltd | Mold for injection molding |
| JPH05278062A (en) * | 1992-04-02 | 1993-10-26 | Fuji Electric Co Ltd | Mold for transparent resin-sealed semiconductor device |
| CN2838919Y (en) * | 2005-09-30 | 2006-11-22 | 佛山市顺德区汉达精密电子科技有限公司 | Mould with auxiliary mould-opening spring block structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5084904B2 (en) | 2012-11-28 |
| JPWO2009119022A1 (en) | 2011-07-21 |
| CN101855055B (en) | 2013-05-15 |
| WO2009119022A1 (en) | 2009-10-01 |
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Granted publication date: 20130515 Termination date: 20210311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |