CN109571916A - Molding machine - Google Patents
Molding machine Download PDFInfo
- Publication number
- CN109571916A CN109571916A CN201811442599.9A CN201811442599A CN109571916A CN 109571916 A CN109571916 A CN 109571916A CN 201811442599 A CN201811442599 A CN 201811442599A CN 109571916 A CN109571916 A CN 109571916A
- Authority
- CN
- China
- Prior art keywords
- top surface
- molding machine
- forming part
- profile
- groove
- Prior art date
- 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.)
- Granted
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Classifications
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/18—Thermoforming apparatus
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The present invention provides a kind of molding machine, comprising: supporting part is provided with a groove, the side wall that the groove has a bottom wall and connect with the bottom wall on the supporting part；And forming part, the forming part be set on the bottom wall and with the side wall separately, the forming part have a top surface far from bottom wall, the top surface is to carry product to be formed；The profile of the opening of the groove is identical as the profile at the edge of the top surface.Molding machine provided by the invention, by setting identical as the profile at the edge of forming part top surface for the profile of the opening of forming part groove, be conducive to improve the problem of thin-film material upper stress causes thin-film material optical characteristics etc. to be affected in thermoplastic shaping processing procedure.
Description
Technical field
The present invention relates to tool fixture field more particularly to a kind of molding machines.
Background technique
At present no matter VR (Virtual Reality, virtual reality) equipment, (Augmented Reality, enhancing are existing by AR
Equipment, wearable computer etc. all generally need optical film adhered in fact), and above-mentioned optical thin film generally utilizes hot pressing moulding
It completes.By taking hot pressing moulding forms the processing procedure of optical thin film as an example, when especially forming the optical thin film of curved surface, hot compression molding shape journey
In, on the jig that needs for thin-film material to be placed in hot pressing moulding, which includes a forming area, the profile of forming area with
Target product profiles are identical.A side from thin-film material far from jig applies pressure to thin-film material, makes thin-film material most end form
At target product.
And in existing jig, when the side from thin-film material far from jig applies pressure to thin-film material, forming
The stress of the corresponding thin-film material of edges of regions is stronger, causes thin-film material to be stretched and generates deformation, is further derived by deformation
Variation of the thin-film material in optical characteristics and material thickness out, optical property variation, thin-film material became uneven etc., on
The problem of stating will lead to the finally formed target product of thin-film material, set being applied to VR equipment, AR equipment, wearable computer etc.
Equipment quality decline when standby.
Summary of the invention
The present invention provides a kind of molding machine, comprising:
Supporting part, be provided with a groove on the supporting part, and the groove has a bottom wall and connect with the bottom wall
Side wall；And
Forming part, the forming part be set on the bottom wall and with the side wall separately, the forming part have one
Top surface far from bottom wall, the top surface is to carry product to be formed；
The profile of the opening of the groove is identical as the profile at the edge of the top surface.
Molding machine provided in an embodiment of the present invention, by setting the profile of the opening of supporting part groove to and forming part
The profile at the edge of top surface is identical, in thermoplastic shaping processing procedure, when applying pressure to thin-film material, and thin-film material edge stress phase
To smaller, being conducive to improve thin-film material upper stress in thermoplastic shaping processing procedure causes thin-film material optical characteristics etc. affected
Problem.
Detailed description of the invention
Fig. 1 is the schematic perspective view for the molding machine that the embodiment of the present invention one provides.
Fig. 2 is the schematic diagram of the section structure of the Fig. 1 along II-II direction.
Fig. 3 is the projecting figure of slot opening and forming part top surface.
Fig. 4 is the diagrammatic cross-section of the use state of molding machine.
Fig. 5 is another diagrammatic cross-section of the use state of molding machine.
Main element symbol description
| Molding machine | 10 |
| Supporting part | 11 |
| Forming part | 12 |
| Groove | 111 |
| Bottom wall | 112 |
| Side wall | 113 |
| Opening | 114 |
| Top surface | 121 |
| Depth | d1 |
| Highly | d2 |
| Pole | O |
| First ray | M |
| Second ray | N |
| Intersection point | P、Q |
| Curve | X、Y |
| Thin-film material | 20 |
| Opening diameter | D1、D2 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Embodiment one
Referring to Fig. 1, molding machine 10 provided in this embodiment, including supporting part 11 and be incorporated on supporting part 11 at
Type portion 12.
As shown in Figure 1, being provided with a groove 111 on supporting part 11, groove 111 is to accommodate product to be formed.Groove
111 with a bottom wall 112, the side wall 113 connecting with bottom wall 112 and far from the opening of bottom wall 112 114.Forming part 12 is set to recessed
On the bottom wall 112 of slot 111, and forming part 12 is placed in groove 111.The side wall 113 of forming part 12 and groove 111 is separately.
In the present embodiment, supporting part 11 and forming part 12 are integrally formed, and integrally formed mode may include but be not limited to:
3D printing, injection molding, it is higher using integrally formed mode efficiency.In another embodiment, forming part 12 is with detachable side
Formula is incorporated into the bottom wall 112 of groove 111, and removably is to include but is not limited to: viscous to stick, carried out using firmware (such as bolt)
Locking.It, can also be real, it can be achieved that only replacing the supporting part 11 or forming part 12 in a molding machine when being removably arranged
Existing different 12 matched combined of supporting part 11 and forming part improves component and utilizes flexibility ratio.
As shown in Figure 1, forming part 12 has a top surface 121 far from 111 bottom wall 112 of groove.Use the molding machine
When the to be formed product of 10 processing, for top surface 121 for carrying product to be formed, product to be formed will be attached to top surface
It 121 and is extruded.The profile at the edge of top surface 121 is identical as the profile of opening 114 of groove 111.
As shown in Figure 1, molding machine 10 provided in this embodiment, the top surface 121 of forming part 12 is irregular shape,
114 profile of opening of groove 111 is set as identical as the edge contour of top surface 121.In the present embodiment, supporting part 11 is set as
Hollow is cylindric, is that the profile of the opening 114 of retaining groove 111 is identical as the profile at the edge of top surface 121 and not advise
Profile then, the wall thickness of supporting part 11 are non-uniform.The present invention to the monnolithic case of supporting part 11 with no restriction, in other realities
Apply in example, it is contemplated that adjustment molding machine 10 appearance so that the wall thickness of supporting part 11 may be configured as it is equal.
Referring to Fig. 2, top surface 121 is a curved surface.In the present embodiment, top surface 121 is one to 111 bottom wall 112 of groove
The curved surface of direction recess.In other embodiments, top surface 121 can be to the song protruded far from 111 bottom wall of groove, 112 direction
Face, in another embodiment, top surface 121, which may also set up, to be a flat surface.The shape of top surface 121 is according to target shaped article
Shape determines that the profile of the opening 114 of groove 111 is determined by the profile at the edge of top surface 121, the openings of sizes of groove 111
Meet and is greater than 121 area of top surface.
It below will be between the profile of the opening 114 to groove 111 and the profile at the edge of the top surface 121 of forming part 12
Relationship is further described:
Referring to Figure 2 together and Fig. 3, by the profile of be open 114 profile and the edge of top surface 121 in groove 111
Make orthographic projection on bottom wall 112, there is curve X and curve Y in the projecting figure of formation such as Fig. 3, Fig. 3 respectively, curve X is opening 114
Projecting figure of the profile on bottom wall 112, curve Y is perspective view of the profile at the edge of top surface 121 on bottom wall 112
Shape.
Referring to Fig. 3, polar coordinate system is established in the plane in projecting figure, in the geometry of the curve Y figure surrounded
The heart is pole, and pole is expressed as O, draws the first ray M with pole O any direction, as polar axis, with pole O to any direction
It draws the second ray N, the second ray N and curve X and curve Y and is respectively provided with an intersection point.The intersection point table of second ray N and curve X
It is shown as P, P point coordinate representation is (ρ 1, θ 1), and wherein ρ 1 indicates the distance between pole O and P point, the expression P point of θ 1 and pole O's
The angle of line and the first ray M；The intersection point of second ray N and curve Y is Q, and Q point coordinate representation is (ρ 2, θ 2), wherein 2 table of ρ
Show that the distance between pole O and Q point, θ 2 indicate the line of Q point and pole O and the angle of the first ray M.Then P point and Q point coordinate
Meet following relationship:
The angle of θ 1=θ 2=the first ray M and the second ray N, ρ 1=S × ρ 2, and S > 1, i.e. ρ 1 are greater than ρ 2.
That is, the profile of the opening 114 of groove 111 is identical as the profile at the edge of top surface 121, and in top surface 121
On the basis of amplify.
In an embodiment, the profile of the opening 114 of groove 111 is identical as the profile at the edge of top surface 121, and S >=
1.5；In another embodiment, 1.5≤S≤1.75.
Referring to Fig. 4, molding machine 10 provided in this embodiment, forming target shaped article for thermoplastic shaping, (figure is not
Show), target shaped article is optical thin film.In molding manufacture procedure, first thin-film material 20 is placed on supporting part 11, it is thin at this time
Membrane material 20 not yet enters groove 111, and then in thin-film material 20, far from 12 side of forming part, (multiple parallel rows refer in Fig. 4
To direction) apply the top surface 121 that pressure makes in the entrance groove 111 of thin-film material 20 and finally supports forming part 12.Film material
Material 20 can heat and soften before entering groove 111, and heating makes its softening after can also pass through groove 111, make the thin-film material 20 of softening
It supports the top surface 121 of forming part 12 and is extruded to be shaped to the shape of top surface 121.In the present embodiment, apply stressed
Mode is directly to apply pressure to thin-film material 20 with a mechanical pressure head.
To provide the accommodation space of mechanical pressure head, in the present embodiment, the side wall 113 of groove 111 is perpendicular to where bottom wall 112
Plane and side wall 113 everywhere height it is equal.The depth d1 (namely height of side wall 113) of groove is greater than the maximum of forming part 12
Height d2 (forming part 12 is a curved surface, and height differs everywhere, therefore has maximum height).
In other embodiments, applying stressed mode may be the modes such as air pressure, hydraulic, and the present invention does not limit this
It is fixed.
Referring to Fig. 5, keeping applying pressure, thin-film material 20 is made to be close to 12 top surface 121 of forming part.It is pushed up with forming part 12
The part thin-film material 20 that surface 121 is close to is target shaped article, and rest part is then waste material.In order to form required shape
Target shaped article, 12 top surface 121 of forming part is set as consistent with the shape of target shaped article.In the present embodiment, at
The top surface 121 in type portion 12 is a curved surface, then target shaped article is a curved optic film.
Molding machine 10 provided in this embodiment, by setting the profile of the opening 114 of groove 111 to and forming part 12
The profile at the edge of top surface 121 is identical, when thin-film material 20 is extruded in thermoplastic shaping processing procedure, 20 edge stress of thin-film material
Relatively small, the stress relative equilibrium of entire stress surface, the structure for helping to maintain thin-film material 20 is constant, so that thin-film material
20 keep primary characteristic.Therefore be conducive to improve thermoplastic shaping processing procedure in 20 upper stress of thin-film material cause by force very much thin-film material by
To pullling, the problem of structure changes and then optical characteristics etc. is affected.
It is the effect comparison of the molding machine 10 in the molding machine and this case of comparative example below:
Please refer to table one: table one is to use the molding machine of comparative example (opening of the groove of supporting part is circle, forming part
Identical with above-mentioned forming part 12, top surface is irregular shape), the pressure applied to thin-film material and thin-film material side
Relationship between the stress of edge.In table one by taking molding machine opening is cylindric as an example, illustrating opening diameter is respectively 65mm
With two groups of data of 70mm:
Table one
Please refer to table two: table two is the pressure and film that apply to thin-film material 20 using the molding machine 10 in this case
Relationship between the stress at 20 edge of material.Top surface of the opening 114 with respect to forming part 12 of groove 111 is illustrated in table two
Two groups of data when 121 magnification ratios are respectively 1.5 (i.e. S=1.5) and 1.75 (i.e. S=1.75):
Table two
Refering to the 6th group of data in first group of data in the 5th group of data in table one, table two, table two, above-mentioned three groups of data
In, applying pressure to thin-film material 20 is 0.3, when to the application pressure of thin-film material 20 is 0.3, is formed and is filled using comparative example
Set, thin-film material edge stress be 4.4141% (first group of data in table one), and use this case in molding machine 10 when, it is thin
The stress at 20 edge of membrane material is respectively 2.4588% (first group of data in table two) and 2.5087% (the 6th group of number in table two
According to), illustrate, when applying uniform pressure to thin-film material, using the molding machine 10 in this case than using comparative example molding dress
It sets, the stress at thin-film material edge wants small.
Further, first group of data in first group of data and table two are please referred in table one, using comparative example molding machine,
When being 0.138 to thin-film material application pressure, the stress at thin-film material edge reaches 2.4588%, and uses the molding in this case
Device 10, applying pressure to thin-film material 20 is 0.3, and the stress at 20 edge of thin-film material is just consistent with comparative example.Then illustrate, if
In an embodiment, thin-film material edge can meet with stresses when being 2.4588%, using the molding machine 10 in this case than using
Comparative example molding machine, the pressure limit that thin-film material can be born are bigger.
According to above-mentioned analysis, molding machine 10 provided in this embodiment, by setting the profile of the opening 114 of groove 111
It is set to identical as the profile at edge of 12 top surface 121 of forming part, can be effectively improved in thermoplastic shaping processing procedure on thin-film material 20
The problem of stress causes thin-film material optical characteristics to be affected.
Those skilled in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as within spirit of the invention, it is to the above embodiments
Appropriate change and variation are all fallen within the scope of protection of present invention.
Claims (10)
1. a kind of molding machine characterized by comprising
Supporting part is provided with a groove, the side wall that the groove has a bottom wall and connect with the bottom wall on the supporting part；
And
Forming part, the forming part be set on the bottom wall and with the side wall separately, the forming part has one separate
The top surface of bottom wall, the top surface is to carry product to be formed；
The profile of the opening of the groove is identical as the profile at the edge of the top surface.
2. molding machine as described in claim 1, which is characterized in that the profile of the opening and the top surface with it is described
The projecting figure of the upper formation of the bottom wall of groove, meets following relationship:
Polar coordinate system is established on the perspective plane, it is described to open using the geometric center of the projecting figure of the top surface as pole
The coordinate representation of the point of the projecting figure of the profile of mouth is (ρ 1, θ 1), the seat of the point of the projecting figure of the profile of the top surface
Mark is expressed as (ρ 2, θ 2), and ρ 1, ρ 2 are point at a distance from pole, and θ 1, θ 2 are a little folder between the line and polar axis between pole
Angle；
Wherein, as θ 1=θ 2, ρ 1=S × ρ 2, S > 1.
3. molding machine as claimed in claim 2, it is characterised in that:
S≥1.5。
4. molding machine as claimed in claim 2, it is characterised in that:
1.5≤S≤1.75。
5. molding machine as described in claim 1, which is characterized in that the depth of the groove is greater than the height of the forming part
Degree.
6. molding machine as described in claim 1, which is characterized in that the profile and target of the top surface of the forming part
The profile of shaped article is consistent.
7. molding machine as claimed in claim 6, which is characterized in that the top surface of the forming part is a curved surface.
8. molding machine as claimed in claim 6, which is characterized in that the top surface of the forming part is a flat surface.
9. molding machine as described in claim 1, which is characterized in that the supporting part and the forming part are integrally formed.
10. molding machine as described in claim 1, which is characterized in that the forming part is removably set to described
The bottom wall of groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442599.9A CN109571916B (en) | 2018-11-29 | 2018-11-29 | Molding device |
| TW107144230A TWI706851B (en) | 2018-11-29 | 2018-12-07 | Molding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811442599.9A CN109571916B (en) | 2018-11-29 | 2018-11-29 | Molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109571916A true CN109571916A (en) | 2019-04-05 |
| CN109571916B CN109571916B (en) | 2021-01-29 |
Family
ID=65925194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811442599.9A Active CN109571916B (en) | 2018-11-29 | 2018-11-29 | Molding device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109571916B (en) |
| TW (1) | TWI706851B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001138389A (en) * | 1999-11-11 | 2001-05-22 | Kojima Press Co Ltd | Method for vacuum forming |
| TW200918284A (en) * | 2007-10-18 | 2009-05-01 | Alpha Plus Machinery Corp | Thin film vacuum forming method and the device thereof |
| CN103083747A (en) * | 2011-10-31 | 2013-05-08 | 深圳光启高等理工研究院 | Gas-liquid exchanger |
| CN203428077U (en) * | 2013-01-17 | 2014-02-12 | 郑圣馨 | Pad pasting device of quick diolame |
| CN207273875U (en) * | 2017-09-20 | 2018-04-27 | 蓝思科技（长沙）有限公司 | A kind of film adhering jig |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI361134B (en) * | 2011-05-13 | 2012-04-01 | Chi Jui Hung | Mold for cup lids and method of using the same for making cup lids |
-
2018
- 2018-11-29 CN CN201811442599.9A patent/CN109571916B/en active Active
- 2018-12-07 TW TW107144230A patent/TWI706851B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001138389A (en) * | 1999-11-11 | 2001-05-22 | Kojima Press Co Ltd | Method for vacuum forming |
| TW200918284A (en) * | 2007-10-18 | 2009-05-01 | Alpha Plus Machinery Corp | Thin film vacuum forming method and the device thereof |
| CN103083747A (en) * | 2011-10-31 | 2013-05-08 | 深圳光启高等理工研究院 | Gas-liquid exchanger |
| CN203428077U (en) * | 2013-01-17 | 2014-02-12 | 郑圣馨 | Pad pasting device of quick diolame |
| CN207273875U (en) * | 2017-09-20 | 2018-04-27 | 蓝思科技（长沙）有限公司 | A kind of film adhering jig |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202019662A (en) | 2020-06-01 |
| CN109571916B (en) | 2021-01-29 |
| TWI706851B (en) | 2020-10-11 |
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