CN109747132A - A kind of production technology of glass bloom cover board one-pass molding radian - Google Patents
A kind of production technology of glass bloom cover board one-pass molding radian Download PDFInfo
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- CN109747132A CN109747132A CN201910037437.5A CN201910037437A CN109747132A CN 109747132 A CN109747132 A CN 109747132A CN 201910037437 A CN201910037437 A CN 201910037437A CN 109747132 A CN109747132 A CN 109747132A
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Abstract
The present invention provides a kind of production technologies of glass bloom cover board one-pass molding radian, belong to the technical field of auto parts machinery manufacture.A kind of production technology of glass bloom cover board one-pass molding radian including the following steps: step 1 sets mould temperature；Step 2 regulates and controls mould temperature；Step 3, injection molding；Step 4, stress release；Step 5, formed product；The present invention by by upper die and lower die set 10~15 DEG C temperature deviation and implementing monitoring, and setting time is set in mould as 70~75 seconds, it ensure that product is being molded, natural torsion can occur when condensation, and destressing is combined to operate, controlling drying tunnel temperature is lower than 3~5 DEG C of mould temperature, and stress release process duration is set as 2~3 hours, when guaranteeing surface gloss, it realizes product one-pass molding and crooked radian is the radian for being bonded glass, Improving The Quality of Products, maintain the characteristics such as wearability and the corrosion resistance of product, avoid resource and property loss, conducive to industry development.
Description
Technical field
The present invention relates to the technical fields of auto parts machinery manufacture, are specifically related to a kind of glass bloom cover board one-pass molding arc
The production technology of degree.
Background technique
On the glass of automobile set up be equipped with cover board, as automobile back windshield on cover board, play rain cover, dust protection etc.
Effect.
Cover board on the back windshield of automobile is bloom cover board, since it is contacted with back windshield, so that it is needed to have
Higher surface gloss, simultaneously as back windshield there are certain radian, to guarantee aesthetics and practicability, needs to make
The radian of the bloom cover board of work is close to the radian of back windshield.And it is traditional, due to the defect of production technology, step is many and diverse, makes
It obtains and is not only difficult to ensure surface gloss when making bloom cover board (the bloom cover board of especially precious gram force material), radian
Fraction is extremely low, or even is unable to get the radian of fitting, and the defect rate in production process is high, causes waste and the wealth of resource
The loss of production is unfavorable for the development of industry.
Summary of the invention
For the above-mentioned problems in the prior art, it is now intended to provide a kind of glass bloom cover board one-pass molding radian
The temperature difference of upper die and lower die, is arranged 10~15 DEG C of deviation by production technology, and being arranged setting time in mould is 70~75 seconds, most
The bloom cover board taken out in mould is carried out to 2~3 hours stress relief operations by drying tunnel afterwards, and drying tunnel temperature is set as compared with mould
Relatively low 3~5 DEG C of temperature, so that towards the curving that temperature is high when bloom cover board condenses in mould, and it is slightly lower using temperature
Drying tunnel carries out destressing operation, so that crooked radian of the bloom cover board after destressing is the crooked radian of glass surface,
Surface gloss has equally reached use demand, one-time formed to obtain corresponding radian, and simple process both improves product
Quality maintains the characteristics such as wearability and the corrosion resistance of product, while also avoiding excessively high defect rate, so as to avoid money
The waste in source and the loss of property, the more conducively sustainable development of industry.
Specific technical solution is as follows:
A kind of production technology of glass bloom cover board one-pass molding radian, for producing the bloom cover board of precious gram force material,
Including the following steps:
Step 1 sets mould temperature, sets the temperature difference of upper die and lower die, and the deviation range of the temperature difference is set as 10~15 DEG C；
Step 2 regulates and controls mould temperature, monitors the real time temperature of upper die and lower die respectively；
Step 3, injection molding, and set in product mould setting time as 70~75 seconds, taking-up product after the completion of condensation；
Product after the completion of condensing in step 3 is transferred in drying tunnel, and sets drying tunnel temperature by step 4, stress release
For 3~5 DEG C lower than mould temperature, and stress release process duration is set as 2~3 hours.
Step 5, formed product, the product after taking-up stress release is complete out of drying tunnel in step 4.
The production technology of above-mentioned a kind of glass bloom cover board one-pass molding radian, wherein mould temperature is using oil temperature heating
Mode carries out, and pipeline, and the wavy setting of pipeline are embedded in upper die and lower die, is connected with hot oil in pipeline.
The production technology of above-mentioned a kind of glass bloom cover board one-pass molding radian, wherein be all connected on upper die and lower die
There is detection device, detection device is thermometer.
A kind of production technology of above-mentioned glass bloom cover board one-pass molding radian, wherein in step 4, stress release
Process duration is 2.5 hours.
A kind of production technology of above-mentioned glass bloom cover board one-pass molding radian, wherein the mould temperature that drying tunnel temperature is lower than
For the temperature of the low mold of temperature in upper die and lower die.
The good effect of above-mentioned technical proposal is:
The production technology of above-mentioned glass bloom cover board one-pass molding radian, by the way that the mould temperature of upper die and lower die is set 10
~15 DEG C of deviation, and setting time is set in the mould of product as 70~75 seconds, so that product can Xiang Wendu in injection moulding process
High side bends, and is incorporated into the stress relief operation carried out in slightly lower 3~5 DEG C of the drying tunnel of temperature 2~3 hours, makes
The crooked radian for obtaining product fits in the radian of glass just, realizes the one-pass molding of product radian, ensure that the table of product
Face glossiness maintains the characteristics such as wearability and the corrosion resistance of material, to reduce the defect rate of product, avoids resource
Waste and property loss, the more conducively development of industry.And come in real time in being provided with detection device on upper die and lower die
Mould temperature is monitored, the qualification rate of product is further ensured；And the heating mould by the way of oil temperature heating, preferably ensure that
The stability of mould temperature equally improves the qualification rate of product.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the embodiment of the production technology of glass bloom cover board one-pass molding radian of the invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
It applies example combination attached drawing 1 to be specifically addressed technical solution provided by the invention, but the following contents is not as the limitation of the invention.
Production technology provided in this embodiment is related to a kind of bloom cover board made of precious gram force material (PMMA).
Fig. 1 is a kind of flow chart of the embodiment of the production technology of glass bloom cover board one-pass molding radian of the invention.
As shown in Figure 1, the production technology of glass bloom cover board one-pass molding radian provided in this embodiment including the following steps:
Step 1 sets mould temperature, sets the temperature difference of upper die and lower die, and the deviation range of the temperature difference is set as 10~15 DEG C；
Specifically, in being embedded with pipeline, the wavy laying of pipeline, so that on upper die and lower die in upper die and lower die
Temperature can be more evenly distributed, to ensure that the stability of mould temperature, to ensure that the quality of product, avoid excessively high time
Product rate.And pipeline is connected on oil liquid heating device, so that the hot oil of injection certain temperature that can be lasting in pipeline, thus
The temperature of upper die and lower die is maintained, stability is higher, further ensures the quality of product, avoids the generation of substandard products, saves
Resource and cost.
Step 2 regulates and controls mould temperature, monitors the real time temperature of upper die and lower die respectively；
Specifically, being provided with detection device on upper die and lower die, detection device is independently arranged, and detection device is temperature
Table is spent, by the work of detection device, real time temperature on each mold of real-time monitoring, convenient for staff by adjusting hot oil
Temperature adjust the stabilization of control mould temperature so that the temperature difference of upper die and lower die remains in the range of 10~15 DEG C, from
And it ensure that the qualification rate of product.
Step 3, injection molding, and set in product mould setting time as 70~75 seconds, taking-up product after the completion of condensation；
Specifically, ensure that the temperature difference dimension of upper die and lower die under the adjusting of step 1 and the supervisory function bit of step 2
In the case where holding in the range of 10~15 DEG C, injection operation is carried out to mold by injection molding machine, and product is maintained to coagulate in mould
Knot, condensation duration control is between 70~75 seconds, and after condensing, product is taken out in die sinking, and product has been directed towards temperature at this time
The bending of certain radian occurs for high side.
Product after the completion of condensing in step 3 is transferred in drying tunnel, and sets drying tunnel temperature by step 4, stress release
For 3~5 DEG C lower than mould temperature, and release process duration is set as 2~3 hours；
Specifically, arranging drying tunnel after injection step, the temperature of drying tunnel is set to be lower than in the range of 3~5 DEG C of mould temperature,
Preferably, the mould temperature that drying tunnel temperature is lower than is the temperature for the mold that temperature is low in upper die and lower die, so that the temperature of drying tunnel is whole
The slightly less than temperature of mold.At this point, will be after completing condensation in step 3 and the product that takes out is placed in drying tunnel and answers
Power release operation, and set 2~3 hours a length of when stress release, enable product in sufficiently releasing in drying tunnel within the shorter period
The problem of putting stress, not easily causing cooling deformation ensure that the quality of product, so that the crooked radian of product is bonded completely
In the radian of glass.
Step 5, formed product, the product after taking-up stress release is complete out of drying tunnel in step 4；
Specifically, taking out the complete product of drying tunnel internal stresses release, the generation of bloom cover board is completed.Realize the one of product
Secondary molding making, radian can satisfy the use demand, not only time saving and energy saving without the complex operations of excessive flow process, but also can protect
The surface gloss for demonstrate,proving product, maintains the characteristics such as wearability and the corrosion resistance of material, promotes the production efficiency and quality of product.
The production technology of glass bloom cover board one-pass molding radian provided in this embodiment, including following five steps, step
Rapid one, mould temperature is set, sets the temperature difference of upper die and lower die, and the deviation range of the temperature difference is set as 10~15 DEG C；Step 2, regulation
Mould temperature monitors the real time temperature of upper die and lower die respectively；Step 3, injection molding, and setting time is set in product mould as 70~75
Second, product is taken out after the completion of condensation；Product after the completion of condensing in step 3 is transferred in drying tunnel by step 4, stress release,
And drying tunnel temperature is set as 3~5 DEG C lower than mould temperature, and set release process duration as 2~3 hours；Step 5, product
Molding, the product after taking-up stress release is complete out of drying tunnel in step 4；By by upper die and lower die set temperature deviation
And implementing monitoring, it ensure that in injection molding, condensation natural torsion can occur for product, and destressing is combined to operate, guaranteeing surface
In the case where glossiness, realize the curved radian of product be bonded glass radian, realize product radian it is primary at
Type improves product quality, maintains the characteristics such as wearability and the corrosion resistance of product, avoids the loss of resource and property,
Conducive to the development of industry.
The above is only preferred embodiments of the present invention, are not intended to limit the implementation manners and the protection scope of the present invention, right
For those skilled in the art, it should can appreciate that and all replace with being equal made by description of the invention and diagramatic content
It changes and obviously changes obtained scheme, should all be included within the scope of the present invention.
Claims (5)
1. a kind of production technology of glass bloom cover board one-pass molding radian is wrapped for producing the bloom cover board of precious gram force material
Include following steps:
Step 1 sets mould temperature, sets the temperature difference of upper die and lower die, and the deviation range of the temperature difference is set as 10~15 DEG C；
Step 2 regulates and controls mould temperature, monitors the real time temperature of the upper mold and the lower die respectively；
Step 3, injection molding, setting setting time in product mould, product was taken out in condensation after the completion as 70~75 seconds；
Product after the completion of condensing in step 3 is transferred in drying tunnel by step 4, stress release, and sets drying tunnel temperature to be low
In 3~5 DEG C of mould temperature, and stress release process duration is set as 2~3 hours；
Step 5, formed product, the product after taking-up stress release is complete out of drying tunnel in step 4.
2. the production technology of glass bloom cover board one-pass molding radian according to claim 1, which is characterized in that the mould
Temperature is carried out by the way of oil temperature heating, pipeline is embedded in Yu Suoshu upper mold and the lower die, and the pipeline is wavy
It is arranged, is connected with hot oil in the pipeline.
3. the production technology of glass bloom cover board one-pass molding radian according to claim 1, which is characterized in that on described
Detection device is respectively connected on mould and the lower die, the detection device is thermometer.
4. the production technology of glass bloom cover board one-pass molding radian according to claim 1, which is characterized in that in step
In four, the stress release process duration is 2.5 hours.
5. the production technology of glass bloom cover board one-pass molding radian according to claim 1, which is characterized in that the baking
The mould temperature that channel temp is lower than is the temperature for the mold that temperature is low in the upper mold and the lower die.
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| CN201910037437.5A CN109747132A (en) | 2019-01-15 | 2019-01-15 | A kind of production technology of glass bloom cover board one-pass molding radian |
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| CN201910037437.5A CN109747132A (en) | 2019-01-15 | 2019-01-15 | A kind of production technology of glass bloom cover board one-pass molding radian |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112848425A (en) * | 2020-12-31 | 2021-05-28 | 宁波锦辉光学科技有限公司 | Manufacturing process of free reflector applied to HUD |
| CN113823728A (en) * | 2021-09-18 | 2021-12-21 | 深圳市合丰光电有限公司 | Method for forming fluorescent powder layer on surface of LED chip and LED chip structure |
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|---|---|---|---|---|
| CN112848425A (en) * | 2020-12-31 | 2021-05-28 | 宁波锦辉光学科技有限公司 | Manufacturing process of free reflector applied to HUD |
| CN113823728A (en) * | 2021-09-18 | 2021-12-21 | 深圳市合丰光电有限公司 | Method for forming fluorescent powder layer on surface of LED chip and LED chip structure |
| CN113823728B (en) * | 2021-09-18 | 2022-05-17 | 深圳市合丰光电有限公司 | Method for forming fluorescent powder layer on surface of LED chip and LED chip structure |
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