CN205800089U - A kind of light guide plate die injection moulding - Google Patents
A kind of light guide plate die injection moulding Download PDFInfo
- Publication number
- CN205800089U CN205800089U CN201620673215.4U CN201620673215U CN205800089U CN 205800089 U CN205800089 U CN 205800089U CN 201620673215 U CN201620673215 U CN 201620673215U CN 205800089 U CN205800089 U CN 205800089U
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- pressure
- cooling duct
- pressure limiting
- limiting portion
- cover half
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Abstract
A kind of light guide plate die injection moulding, including cover half and dynamic model, exhaust passage and cooling duct is had on cover half, control chamber it is additionally provided with in cover half, described control intracavity is provided with Morable isolation plate, and control chamber is divided into pressure limiting portion and limit temperature portion by Morable isolation plate, and pressure limiting portion communicates with exhaust passage, limit temperature portion communicates equipped with coolant and with cooling duct, and wherein the volume of coolant is more than the volume of cooling duct.Use technique scheme, the pressure in mold cavity can be kept to be maintained in certain scope, product quality will not be affected because of too high or too low；Meanwhile, the real-time control of temperature has also been taken into account.
Description
Technical field
This utility model relates to a kind of light guide plate production mould, specifically, is light guide plate die injection moulding.
Background technology
In the prior art, the common technology of manufacturing of light guide plate includes direct injection mo(u)lding and enterprising at finished product sheet material
Row secondary operations, wherein injection mo(u)lding due to the raw material used be the particulate material of organic resin, the secondary comparing finished product sheet material adds
Work cost is lower, and for the manufacturing of the Wedge shape light conduction board that is widely used, injection molding technology has more can not
The clear superiority substituted.
During injection mo(u)lding, owing to the glutinous fluid temperature (F.T.) after material melts is high, poor fluidity, in order to preferably fill out
Mold filling has, it is therefore desirable to higher injection speed, and this gas that can result in mold cavity is difficult to discharge, mould cavity pressure
Increasing and temperature raises, thus cause gas and material to stick fluid and produce violent calcination, this will cause a series of consequence, as made
Product can not be close to mould, die of burning, be not easily taken out product etc., therefore, controls the temperature and pressure in mold cavity the heaviest
Want.
In light guide plate injection mo(u)lding production process, in order to the temperature and pressure preferably controlled in mold cavity, permitted
Multi-vendor employing, with the injection machine of intelligent control function, adjusts by gathering the temperature and pressure information in mold cavity in good time
Injection parameters, thus reach to control the purpose of the pressure and temperature in mold cavity.But, this kind of method one is to step up its investment into
This, two is that to change injection parameters be only the temperature and pressure in remote-effects mold cavity, and has certain hysteresis quality.Mould is originally
Pressure and temperature in body regulation mold cavity realizes by offering exhaust passage and cooling duct in mould, but existing
In technology, simple exhaust passage and cooling duct can not fully meet Production requirement.
Summary of the invention
This utility model aims to provide a kind of light guide plate injection mo(u)lding production mould, it is possible to preferably control in mold cavity
Pressure and temperature, and pressure change can be adjusted timely, it is ensured that pressure in mold cavity keeps within the specific limits, specifically
Technical scheme is as follows:
A kind of light guide plate die injection moulding, including cover half and dynamic model, cover half has exhaust passage and cooling duct,
Be additionally provided with in cover half control chamber, described control intracavity is provided with Morable isolation plate, Morable isolation plate control chamber is divided into pressure limiting portion and
Limit temperature portion, pressure limiting portion communicates with exhaust passage, and limit temperature portion communicates equipped with coolant and with cooling duct, the wherein volume of coolant
Volume more than cooling duct.
As the further improvement of such scheme, also including the motor controlling Morable isolation plate, described motor is positioned at pressure limiting
It is controlled in portion and by the pressure-sensitive switch in pressure limiting portion.
Use technique scheme, the pressure in mold cavity can be kept to be maintained in certain scope, will not be because of too high
Or it is too low and affect product quality；Meanwhile, the real-time control of temperature has also been taken into account.
Accompanying drawing explanation
Fig. 1 is the overall schematic of mould described in the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings the technical solution of the utility model is described further.
Embodiment 1: as it is shown in figure 1, have exhaust passage 3 and cooling duct 4 on cover half, controls chamber 1 by Morable isolation plate 2
Being divided into pressure limiting portion 101 and limit temperature portion 102, pressure limiting portion 101 communicates with exhaust passage 3, and limit temperature portion 102 communicates with cooling duct 4, control
The motor 5 of Morable isolation plate 2 processed is positioned at pressure limiting portion 101, and motor 5 is controlled by the pressure-sensitive switch 6 in pressure limiting portion 101.
When starting to inject the glutinous fluid of material in mold cavity, because being heated and the injection of material makes the pressure in mold cavity
Power increases, and intracavity gas enters pressure limiting portion 101 by exhaust passage 2 so that the pressure in pressure limiting portion 101 increases, promotion activity
Division board 2 moves to limit temperature portion 102；In limit temperature portion 102, pressure increases, and promotes coolant to flow in cooling duct 4 so that mould
The temperature of intracavity reduces.Owing to one side pressure limiting portion 101 contains expellant gas in mold cavity, on the other hand limit temperature portion 102
Further reduce the temperature in mold cavity, therefore reach pressure limiting and the purpose of limit temperature.
It addition, motor 5 is controlled by the pressure-sensitive switch 6 in pressure limiting portion 101, the pressure in pressure limiting portion 101
When increasing to threshold value (the adjusting threshold value by pressure-sensitive switch 6) preset, start motor 5 so that Morable isolation plate 2 is to limit temperature
Portion 102 moves in direction, strengthens passive pressure limiting and the effect of limit temperature；When the pressure in pressure limiting portion 101 is reduced to pressure-sensitive switch 6
Conduction threshold below time, disconnect motor 5, the motion of division board 2 of stopping action.By using motor 5 to make cavity pressure begin
It is limited to eventually about the conduction threshold of pressure-sensitive switch 6.
Especially, it should be noted that, what technical scheme described in the utility model utilized is that mould itself carries out pressure and temperature
The control of degree, carries out injection parameters adjustment from by injection machine thus the pressure and the temperature that affect in mold cavity is different.
Claims (2)
1. a light guide plate die injection moulding, including cover half and dynamic model, cover half has exhaust passage and cooling duct, its
It is characterised by: being additionally provided with control chamber in cover half, described control intracavity is provided with Morable isolation plate, and control chamber is divided into by Morable isolation plate
Pressure limiting portion and limit temperature portion, pressure limiting portion communicates with exhaust passage, and limit temperature portion communicates equipped with coolant and with cooling duct, coolant
Volume more than cooling duct volume and less than cooling duct and limit temperature portion volume with.
2. light guide plate die injection moulding as claimed in claim 1, it is characterised in that: also include the electricity controlling division board
Machine, described motor is positioned at pressure limiting portion and the pressure-sensitive switch by pressure limiting portion is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620673215.4U CN205800089U (en) | 2016-06-30 | 2016-06-30 | A kind of light guide plate die injection moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620673215.4U CN205800089U (en) | 2016-06-30 | 2016-06-30 | A kind of light guide plate die injection moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205800089U true CN205800089U (en) | 2016-12-14 |
Family
ID=57511954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620673215.4U Active CN205800089U (en) | 2016-06-30 | 2016-06-30 | A kind of light guide plate die injection moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205800089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878045A (en) * | 2019-01-31 | 2019-06-14 | 贵州省材料产业技术研究院 | Intelligence adjusts the control device that mold cavity pressure is constant and is precisely controlled |
-
2016
- 2016-06-30 CN CN201620673215.4U patent/CN205800089U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878045A (en) * | 2019-01-31 | 2019-06-14 | 贵州省材料产业技术研究院 | Intelligence adjusts the control device that mold cavity pressure is constant and is precisely controlled |
| CN109878045B (en) * | 2019-01-31 | 2020-12-29 | 贵州省材料产业技术研究院 | Control device for intelligently adjusting constant pressure and accurate control of mold cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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" |