CN104723544A - Processing technique of dual-layer composite plastic-suction tray - Google Patents
Processing technique of dual-layer composite plastic-suction tray Download PDFInfo
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- CN104723544A CN104723544A CN201510081627.9A CN201510081627A CN104723544A CN 104723544 A CN104723544 A CN 104723544A CN 201510081627 A CN201510081627 A CN 201510081627A CN 104723544 A CN104723544 A CN 104723544A
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Abstract
The invention belongs to the technical field of plastic-suction tray processing, and in particular relates to a processing technique of a dual-layer composite plastic-suction tray. The technique comprises the steps of heating and softening two sheets at the same time, after the hard sheet is firstly molded, the soft sheet and the molded hard sheet are subjected to press molding under the push of high-pressure gas. Through the adoption of the processing technic disclosed by the invention, the energy waste caused by respectively molding the soft sheet and the hard sheet is avoided, a lower die does not need to be manufactured, and the deformation problem caused by heating in the molding process of the soft sheet is avoided; the soft material in the dual-layer composite plastic-suction tray manufactured through the processing technique is nearly free from deformation, and the consistent degree of the hard material and the soft material is extremely high.
Description
Technical field
The invention belongs to plastic-sucking tray processing technique field, particularly relate to a kind of processing technology of two-layer compound plastic-sucking tray.
Background technology
Plastic-sucking tray, as the container of splendid attire electronic product, in order to protect electronic product not to be subject to pressure injury in transportation, need increase the soft foam material of one deck on original pallet basis.Two kinds of sheet materials are mainly carried out hot briquetting by prior art respectively, need making 2 moulds, cause resource, energy waste; Two products of producing shaped, need to utilize the mode such as adhesive or hot pressing the two to be bonded together use, waste of manpower, material resources, increase cost.
In addition, the shrinkage factor width due to soft material is dynamic comparatively large, its being heated or using adhesive that it all can be caused to be out of shape in forming process, thus is difficult to control the degree of closely cooperating between itself and stiff sheet material, and reduce match result, impact uses.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, a kind of processing technology of two-layer compound plastic-sucking tray is provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of processing technology of two-layer compound plastic-sucking tray, and step is as follows:
(1) hard sheet and soft sheet material sent in electric furnace simultaneously heat, described hard sheet upper, soft sheet material under, the heating-up temperature controlling heating furnace is 50 DEG C, and be heated 20 ~ 30s;
(2) hard sheet after step (1) is softening and soft sheet material are sent in forming machine simultaneously, are placed in air drain upper surface, described hard sheet upper, soft sheet material under;
(3) power controlling evacuator is 300m
3/ h, removable patrix drives mold to move down on guide pillar, touches hard sheet, and in vacuum state between hard sheet and mold, hard sheet is shaping;
(4) open gases at high pressure devices, controlling gases at high pressure pressure is 0.5MPa simultaneously, soft sheet material under gases at high pressure push with in type hard sheet pressing;
(5) close evacuator and gases at high pressure device, pass into cooling water in cold water tray, cooled by mold, the hard sheet of pressing and soft sheet material cooling forming, namely the demoulding obtains two-layer compound plastic-sucking tray.
The invention has the beneficial effects as follows: the present invention by two kinds of sheet materials simultaneously by thermal softening, after hard sheet is first shaping, soft sheet material under gases at high pressure push with in type hard sheet pressing and forming.In the present invention, soft sheet material is without the need to relying on its mould shaping separately, without the need to making bed die, this method avoid soft sheet material and the hard sheet shaping energy waste caused respectively, avoiding the problem on deformation that soft sheet material causes because being heated in forming process; The two-layer compound plastic-sucking tray that the present invention obtains, soft material is almost without distortion, and the goodness of fit of hard material and soft material is high.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described hard sheet is PET, PS or ABS, and thickness is 0.3 ~ 2.0mm; Described soft sheet material is PE, and thickness is 0.3 ~ 2.0mm.
The beneficial effect adopting above-mentioned further scheme is that material therefor all possesses antistatic property, and nontoxic, cheap and easy to get, environmental protection.
Further, the heating process in step (1), by hard sheet upper, soft sheet material under.
Adopt the beneficial effect of above-mentioned further scheme to be that electrical heating block is above heating furnace, and the heating temperature being therefore placed in the sheet material on upper strata can higher than lower floor's sheet material, and soft sheet material heat resisting temperature is lower, is placed on lower floor, avoid it and be heated and too highly cause distortion.
Further, the raw material that the present invention uses can be soft sheet material through cutting, suitable size and hard sheet, and enforcement is produced separately; Also can be soft sheet material band and hard sheet band, after pressing, carry out cutting, implement industrialization continuity and produce.
Accompanying drawing explanation
Fig. 1 is heater of the present invention, shaped device schematic diagram;
Fig. 2 is the plastic-sucking tray Facad structure schematic diagram that the embodiment of the present invention 1 obtains;
Fig. 3 is the plastic-sucking tray Facad structure schematic diagram that the embodiment of the present invention 2 obtains;
In figure, 1, electric furnace; 2, electrical heating block; 3, hard sheet; 4, soft sheet material; 5, removable patrix; 6, mold; 7, vacuum-pumping tube; 8, guide pillar; 9, cold water tray; 10, cooling water inlet pipe; 11, cooling water outlet pipe; 12, pore; 13, fixing lower groove; 14, high-pressure pipe; 15, air drain; 16, support.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.
The forming machine that the embodiment of the present invention uses, comprise support 16, guide pillar 8, air drain 15 and vacuum extractor, described four fixing guide pillars 8 are fixed on support 16, described air drain 15 is fixed on guide pillar 8 by fixing lower groove 13, described air drain 15 is provided with high-pressure pipe 15 and air drain upper surface, and described air drain upper surface is evenly equipped with pore 12; Described guide pillar 8 slidably connects removable patrix 5, and be fixed with cold water tray 9 below described removable patrix 5, described cold water tray 9 is connected with cooling water inlet pipe 10, cooling water outlet pipe 11, is provided with mold 6 bottom described cold water tray 9; Described vacuum extractor comprises evacuator, vacuum-pumping tube 7 and through hole, and described through hole is distributed on mold 6, and described through hole is communicated with vacuum-pumping tube 7.
Embodiment 1
A processing technology for two-layer compound plastic-sucking tray, step is as follows:
(1) hard sheet PET and soft sheet material PE sent in electric furnace simultaneously heat, described hard sheet upper, soft sheet material under, the heating-up temperature controlling heating furnace is 50 DEG C, and be heated 30s;
(2) hard sheet after step (1) is softening and soft sheet material are sent in forming machine simultaneously, are placed in air drain upper surface, described hard sheet upper, soft sheet material under;
(3) power controlling evacuator is 300m
3/ h, removable patrix drives mold to move down on guide pillar, touches hard sheet, and in vacuum state between hard sheet and mold, hard sheet is shaping;
(4) open gases at high pressure devices, controlling gases at high pressure pressure is 0.5MPa simultaneously, soft sheet material under gases at high pressure push with in type hard sheet pressing;
(5) evacuator and gases at high pressure device is closed, cooling water is passed into in cold water tray by cooling water inlet pipe, mold is cooled, the hard sheet of pressing and soft sheet material cooling forming, by cooling water outlet pipe, cooling water is discharged, namely the demoulding obtains two-layer compound plastic-sucking tray, and described soft sheet material PE is front, for splendid attire electronic component.
Embodiment 2
A processing technology for two-layer compound plastic-sucking tray, step is as follows:
(1) hard sheet ABS and soft sheet material PE sent in electric furnace simultaneously heat, described hard sheet upper, soft sheet material under, the heating-up temperature controlling heating furnace is 50 DEG C, and be heated 20s;
(2) hard sheet after step (1) is softening and soft sheet material are sent in forming machine simultaneously, are placed in air drain upper surface, described hard sheet upper, soft sheet material under;
(3) power controlling evacuator is 300m
3/ h, removable patrix drives mold to move down on guide pillar, touches hard sheet, and in vacuum state between hard sheet and mold, hard sheet is shaping;
(4) open gases at high pressure devices, controlling gases at high pressure pressure is 0.5MPa simultaneously, soft sheet material under gases at high pressure push with in type hard sheet pressing;
(5) evacuator and gases at high pressure device is closed, cooling water is passed into in cold water tray by cooling water inlet pipe, mold is cooled, the hard sheet of pressing and soft sheet material cooling forming, by cooling water outlet pipe, cooling water is discharged, namely the demoulding obtains two-layer compound plastic-sucking tray, and described soft sheet material PE is front, for splendid attire electronic component.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a processing technology for two-layer compound plastic-sucking tray, is characterized in that, step is as follows:
(1) hard sheet and soft sheet material sent in electric furnace simultaneously heat, described hard sheet upper, soft sheet material under, the heating-up temperature controlling heating furnace is 50 DEG C, and be heated 20 ~ 30s;
(2) hard sheet after step (1) is softening and soft sheet material are sent in forming machine simultaneously, are placed in air drain upper surface, described hard sheet upper, soft sheet material under;
(3) power controlling evacuator is 300m
3/ h, removable patrix drives mold to move down on guide pillar, touches hard sheet, and in vacuum state between hard sheet and mold, hard sheet is shaping;
(4) open gases at high pressure devices, controlling gases at high pressure pressure is 0.5MPa simultaneously, soft sheet material under gases at high pressure push with in type hard sheet pressing;
(5) close evacuator and gases at high pressure device, pass into cooling water in cold water tray, cooled by mold, the hard sheet of pressing and soft sheet material cooling forming, namely the demoulding obtains two-layer compound plastic-sucking tray.
2. processing technology according to claim 1, is characterized in that, described hard sheet is PET, PS or ABS, and thickness is 0.3 ~ 2.0mm.
3. processing technology according to claim 1, is characterized in that, described soft sheet material is PE, and thickness is 0.3 ~ 2.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081627.9A CN104723544A (en) | 2015-02-15 | 2015-02-15 | Processing technique of dual-layer composite plastic-suction tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081627.9A CN104723544A (en) | 2015-02-15 | 2015-02-15 | Processing technique of dual-layer composite plastic-suction tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104723544A true CN104723544A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510081627.9A Pending CN104723544A (en) | 2015-02-15 | 2015-02-15 | Processing technique of dual-layer composite plastic-suction tray |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327226A (en) * | 2018-04-08 | 2018-07-27 | 宁波喜悦包装科技股份有限公司 | A kind of mold for making predeformation plastic-sucking tray structure |
| CN110774712A (en) * | 2019-11-08 | 2020-02-11 | 黑龙江幸福人生态农业开发股份有限公司 | Preparation method of bio-based composite material sheet and plastic uptake tray manufactured by sheet |
-
2015
- 2015-02-15 CN CN201510081627.9A patent/CN104723544A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327226A (en) * | 2018-04-08 | 2018-07-27 | 宁波喜悦包装科技股份有限公司 | A kind of mold for making predeformation plastic-sucking tray structure |
| CN110774712A (en) * | 2019-11-08 | 2020-02-11 | 黑龙江幸福人生态农业开发股份有限公司 | Preparation method of bio-based composite material sheet and plastic uptake tray manufactured by sheet |
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Application publication date: 20150624 |