CN105538644B - The production equipment and production method of inexpensive light guide plate - Google Patents
The production equipment and production method of inexpensive light guide plate Download PDFInfo
- Publication number
- CN105538644B CN105538644B CN201610085518.9A CN201610085518A CN105538644B CN 105538644 B CN105538644 B CN 105538644B CN 201610085518 A CN201610085518 A CN 201610085518A CN 105538644 B CN105538644 B CN 105538644B
- Authority
- CN
- China
- Prior art keywords
- wheel
- die strip
- mold wheel
- light guide
- guide plate
- 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.)
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
-
- 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
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of production equipment of light guide plate and production method, and the size light guide plate that meets the needs of thinner and can be adjusted flexibly as needed can be produced using the raw material and equipment of low cost.The profiled part of light guide plate production equipment includes equal die strip, rolling wheel and the mold wheel of width; die strip is placed between rolling wheel and mold wheel; die strip two sides are provided with inwardly projecting stepped holding section; the edge of two rounded faces of mold wheel is provided with the cascade groove being engaged with die strip holding section; also include dismountable site mould, the site modular ring around and be close to the face of cylinder of mold wheel.
Description
Technical field
The present invention relates to light guide plate manufacturing field, specifically, is related to production equipment and the life of a kind of inexpensive light guide plate
Production method.
Background technology
In conventional light guide board fabrication method, or by the way of injection molding, directly particulate starting material is made
Light guide plate with site, or site is being made with the methods of illumination, cutting or chemical etching, heat rolling on finished product sheet material.
In recent years, Japanese invention Outshooting compression shaping method, it is similar with injection molding method, and band directly is made in particulate starting material
The light guide plate of site.
In injection molding forming method, in order to eliminate the influence of material cooling meat, packing stage can be entered after the filling stage,
But in pressure maintaining period, packing pressure can be remained in the product and formed with to internal stress, influence product quality, and to injection moulding speed
Requirement it is also higher.
In method for processing sheet material, because raw material are the sheet material of finished product, so to equipment requirement than relatively low, Er Qieke
With as needed, the size of light guide plate is adjusted flexibly.But the thickness of finished product light guide plate is limited in itself by sheet material, in addition raw material valency
Lattice also can be of a relatively high so that it is only applicable to the less situation of output.
Outshooting compression shaping method is similar with injection molding method, and difference is that its mould is activity during injection is projected
, after being molded to a certain extent, the shaping of flexible mould crushing failure at high speed, internal stress is not produced, thinner leaded light can be produced
Plate, and it is lower than traditional injection moulding shaping to injection moulding speed requirement, but the requirement to technical conditions, appointed condition is all very high,
And as injection molding method, the product size of output is limited by mould, the making of mould is also higher to technical requirements.
The content of the invention
To overcome deficiency of the prior art, the technical problems to be solved by the invention are to provide a kind of production equipment and life
Production method, ensuring using inexpensive raw material, on the premise of low-cost equipment, and can, which is produced, meets the needs of thinner and can
With the size light guide plate being adjusted flexibly as needed, cost is reduced.
In order to solve the above technical problems, design of the present invention is as follows：A kind of inexpensive light guide plate production equipment, including add
Material part, stirring melting part, extrusion part, profiled part, cut part etc., the profiled part includes the equal mould of width
Tool band, rolling wheel and mold wheel, the rolling wheel are located on same perpendicular with mold wheel, and the die strip is placed in rolling wheel
Between mold wheel, die strip two sides are provided with inwardly projecting stepped holding section, the edge of two rounded faces of mold wheel
Place is provided with the cascade groove being engaged with die strip holding section, in addition to dismountable site mould, the site modular ring
Around and be close to the face of cylinder of mold wheel.
As the further improvement of such scheme, peel groove is provided with the cascade groove center of the mold wheel, is also wrapped
Stripping voussoir is included, the voussoir position is fixed, and the low side of voussoir is in peel groove, the high-end cascade groove for being higher by mold wheel.
As the further improvement of such scheme, in addition to secondary rolled wheel, the width and mould of the secondary rolled wheel
Take turns equal, and secondary rolled wheel and mold wheel be located on same perpendicular, secondary rolled wheel and mold wheel the same side rounded face
Circle center line connecting pass through described stripping voussoir.
As the further improvement of such scheme, the width of the die strip, mold wheel and rolling wheel is 500mm.
As the further improvement of such scheme, the die strip is aluminum.
A kind of method of production light guide plate using the said equipment, including feed, stir melting, extrusion forming, cut
Step, the extrusion forming step are carried out as follows：
Rolling wheel makes die strip be caught in the groove at mold wheel edge, formed into lateral mold wheel extruding outside die strip
Die cavity；
Optical resin caused by stirring melting step is sticked into fluid persistently to squeeze into forming cavity；
Rolling wheel is pressed further by lateral mold wheel outside die strip, in the site transcription on the mould of site to intracavitary material；
Mold wheel and rolling wheel roll in opposite directions, and die strip, which links closely, mold wheel and follows advance；
When die strip advances to stripping voussoir, die strip is peeled off.
Using production equipment of the present invention and method, persistently squeezed into fluid will be sticked caused by stirring melting step
After in forming cavity, because rolling wheel is in lateral mold wheel extruding outside die strip, die strip is set to be brought into close contact with mold wheel, forming cavity
Interior pressure increase so that product disclosure satisfy that thinner demand；Be provided with site mould additionally, due to mould wheel side so that site with
Product is integrally formed, it is not necessary to secondary operation.
Although one end of forming cavity is openend, on the one hand because by extruding, opening is minimum；On the other hand due to mould
Tool wheel and extruding wheel inwardly rotate, and die strip is close to mold wheel and follows advance so that except the raw material streams initially entered
Outside body is in contact with the external world, other parts do not contact with the external world.
Brief description of the drawings
Fig. 1 is the schematic diagram of profiled part in inexpensive light guide plate production equipment of the present invention.
Fig. 2 is that the die strip being related in the present invention engages schematic diagram with mold wheel.
Fig. 3 is the schematic diagram of mold wheel in the present invention.
Fig. 4 is the flow chart of method in the present invention.
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Below in conjunction with the accompanying drawings, guide-lighting production equipment provided by the invention and method are described in further detail.
Embodiment one
As shown in Figure 1, Figure 2 and Figure 3, rolling wheel 1 is located on same perpendicular with mold wheel 2, and die strip 3 is placed in rolling
Between wheel 1 and mold wheel 2, the two sides of die strip 3 are provided with inwardly projecting stepped holding section 31, two circles of mold wheel 2
The edge in face is provided with the cascade groove 21 being engaged with the holding section 31 of die strip 3, in addition to dismountable site mould
22, site mould 22 surround and is close to the face of cylinder of mold wheel, and groove center is provided with peel groove 23, peels off the position of voussoir 4 and consolidates
Fixed, for the low side 41 of voussoir 4 in peel groove 21, high-end 42 are higher by the groove 21 of mold wheel；Secondary rolled wheel 5 and mold wheel 2
In on same perpendicular, the circle center line connecting of secondary rolled wheel 5 and the same side rounded face of mold wheel 2 passes through stripping voussoir 4；According to
It is actually needed, rolling wheel 1, mold wheel 2, the width of die strip 3 and secondary rolled wheel 4 are 500mm；The selection model of die strip 3
Enclose extensively, preferably surface is smooth, compressive resilience deformation is small, easy processing, the material easily reclaimed, and aluminum material is chosen in the present embodiment
Material.
Embodiment two
As shown in figure 4, produced as follows：
According to site demand, the site mould met is arranged in mold wheel；According to thickness requirements, squeezing for rolling wheel is set
Press parameter；
Aluminium-making mould band is placed between rolling wheel and mold wheel, starts rolling wheel, it is extruded to mold wheel, until mould
The stepped projection for having band enters in the groove of mold wheel and clamping, forms forming cavity；
Raw material are added in charge door, this add for polycarbonate pellets；
Agitated heating, polycarbonate pellets are changed into molten condition, turn into glutinous fluid；
By glutinous liquid extruding, forming cavity is made it into；
While glutinous fluid enters forming cavity, rolling wheel further extrudes to mold wheel, work of the die strip in rolling wheel
With lower with the further clamping of mold wheel, at the same time, on site transcription to the intracavitary material on the mould of site；
Rolling wheel and mold wheel are opened, it is rolled in opposite directions；
Die strip follows mold wheel to advance, and to when peeling off voussoir, the holding section of die strip is extruded by voussoir, and die strip is shelled
From.
The product of some specific demands, secondary rolled may be also needed to.Such as：
When needing thinner light guide plate, after die strip is stripped, product continues to follow mold wheel to advance, through secondary rolled
Wheel and the extruding again of mold wheel；
When needing two-sided processing, after die strip is stripped, product continues to follow mold wheel to advance, and will process dress accordingly
Put and be loaded on secondary rolled wheel.
Difference according to demand, different raw material can be used, it is existing all available for injection molding or injection pressure
Shorten the raw material of type into.
It should be noted that every made any modification within the spirit and principles in the present invention, principle, equivalent
Replace and improve etc., it should be included within the scope of the present invention.
Claims (6)
1. a kind of inexpensive light guide plate production equipment, including charging part, stirring melting part, extrusion part, profiled part, sanction
Cut part etc., it is characterised in that：The profiled part includes equal die strip, rolling wheel and the mold wheel of width, the rolling
Wheel is located on same perpendicular with mold wheel, and the die strip is placed between rolling wheel and mold wheel, and die strip two sides are set
There is inwardly projecting stepped holding section, the edge of two rounded faces of mold wheel is provided with what is be engaged with die strip holding section
Cascade groove, in addition to dismountable site mould, the site modular ring around and be close to the face of cylinder of mold wheel.
2. light guide plate production equipment as claimed in claim 1, it is characterised in that：At the cascade groove center of the mold wheel
Peel groove is provided with, in addition to peels off voussoir, the voussoir position is fixed, and the low side of voussoir is high-end to be higher by mould in peel groove
The cascade groove of wheel.
3. light guide plate production equipment as claimed in claim 2, it is characterised in that：Also include secondary rolled wheel, the secondary rolling
The width of pinch roller is equal with mold wheel, and secondary rolled wheel is located on same perpendicular with mold wheel, secondary rolled wheel and mould
The circle center line connecting of tool wheel the same side rounded face passes through described stripping voussoir.
4. light guide plate production equipment as claimed in claim 1, it is characterised in that：The die strip, mold wheel and rolling wheel
Width is 500mm.
5. light guide plate production equipment as claimed in claim 1, it is characterised in that：The die strip is aluminum.
6. a kind of production method using light guide plate production equipment as claimed in claim 1, including feed, stir melting, squeeze
It is molded, the step such as cut, it is characterised in that：The extrusion forming step is carried out as follows：
Rolling wheel makes die strip be caught in the groove at mold wheel edge, forms forming cavity in lateral mold wheel extruding outside die strip；
Optical resin caused by stirring melting step is sticked into fluid persistently to squeeze into forming cavity；
Rolling wheel is pressed further by lateral mold wheel outside die strip, in the site transcription on the mould of site to intracavitary material；
Mold wheel and rolling wheel roll in opposite directions, and die strip, which links closely, mold wheel and follows advance；
When die strip advances to stripping voussoir, die strip is peeled off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085518.9A CN105538644B (en) | 2016-02-15 | 2016-02-15 | The production equipment and production method of inexpensive light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610085518.9A CN105538644B (en) | 2016-02-15 | 2016-02-15 | The production equipment and production method of inexpensive light guide plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105538644A CN105538644A (en) | 2016-05-04 |
| CN105538644B true CN105538644B (en) | 2018-02-13 |
Family
ID=55818414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610085518.9A Active CN105538644B (en) | 2016-02-15 | 2016-02-15 | The production equipment and production method of inexpensive light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105538644B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013026834A1 (en) * | 2011-08-23 | 2013-02-28 | Evonik Röhm Gmbh | Continuous method for the production of light guide plates |
| CN204086597U (en) * | 2014-09-04 | 2015-01-07 | 鋆洤科技股份有限公司 | light guide plate manufacturing system |
| CN205588599U (en) * | 2016-02-15 | 2016-09-21 | 南京贝迪电子有限公司 | Production facility of low -cost light guide plate |
-
2016
- 2016-02-15 CN CN201610085518.9A patent/CN105538644B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013026834A1 (en) * | 2011-08-23 | 2013-02-28 | Evonik Röhm Gmbh | Continuous method for the production of light guide plates |
| CN204086597U (en) * | 2014-09-04 | 2015-01-07 | 鋆洤科技股份有限公司 | light guide plate manufacturing system |
| CN205588599U (en) * | 2016-02-15 | 2016-09-21 | 南京贝迪电子有限公司 | Production facility of low -cost light guide plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105538644A (en) | 2016-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: Park Road in Jiangning District of Nanjing city and Jiangsu province 211000 No. 18 Applicant after: Nanjing Beidi Electronics Co., Ltd. Address before: 211000, No. 9, market road, Dongshan street, Jiangning District, Jiangsu, Nanjing Applicant before: Nanjing Beidi Electronics Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211100 No. 18 Zhilan Road, Science Park, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Beidi New Material Technology Co.,Ltd. Address before: 211000 No.18, Zhilan Road, Science Park, Jiangning District, Nanjing City, Jiangsu Province Patentee before: NANJING BREADY ELECTRONICS Co.,Ltd. |
|
| CP03 | Change of name, title or address |