CN202180947U - Vacuum automatic coating system - Google Patents
Vacuum automatic coating system Download PDFInfo
- Publication number
- CN202180947U CN202180947U CN2011202943897U CN201120294389U CN202180947U CN 202180947 U CN202180947 U CN 202180947U CN 2011202943897 U CN2011202943897 U CN 2011202943897U CN 201120294389 U CN201120294389 U CN 201120294389U CN 202180947 U CN202180947 U CN 202180947U
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- pad pasting
- lower cover
- vacuum
- workpiece
- loam cake
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Abstract
The utility model relates to a vacuum automatic coating system, which comprises a coating mechanism and an inhaling mechanism, wherein the coating mechanism comprises upper and lower cover plates which are movably connected at one side; the upper cover plate is provided with an upper cover air chamber; the lower cover plate is provided with a dismountable work piece carrying plate; the work piece carrying plate is provided with one or more work piece positioning grooves; upper cover coating adsorbing blocks corresponding to the work piece positioning grooves one by one are arranged on the bottom surface of the upper cover plate; the upper cover coating adsorbing blocks are provided with a plurality of air holes communicated with the upper cover air chamber; the inhaling mechanism comprises a vacuum air storing tank and an inhaling pipe connected between the vacuum air storing tank and the upper cover air chamber; and the inhaling pipe is provided with an inhalation control valve for controlling the inhaling mechanism to inhale air or not. The lower cover plate is provided with a lower cover air chamber communicated with the inhaling pipe; a lower cover coating adsorbing block is arranged on the lower cover plate; and the lower cover coating adsorbing block is provided with a plurality of air holes communicated with the lower cover air chamber. By adopting the vacuum automatic coating system to coat a protective film on a screen or shell, the coating accuracy, flatness and speed can be increased effectively; and the coating effect is improved.
Description
Technical field
The utility model relates to mobile phone screen Filming Technology field, specifically relates to the automatic pad pasting of a kind of vacuum system.
Background technology
Electron trade adopts manual more or by labelling machine screen, shell is carried out pad pasting, and the shortcoming of manual pad pasting is that inefficiency, cost of labor are bigger, occurs easily pasting that the position is inaccurate, pad pasting unfairness or pad pasting contain phenomenons such as bubble; Though can improve operating efficiency by labelling machine; But every labelling machine only can carry out pad pasting to single type product; It uses compatible relatively poor, can't realize the eyeglass or the shell of multiple model outward appearance or structure are carried out multiple subsides operation, the largely degree of automation of limit film coating process.Manual in addition pad pasting or all have the not good problem of clean operation environment degree by the labelling machine pad pasting causes eyeglass or shell pad pasting to be polluted, the requirement of out of reach product design easily.Therefore how to improve eyeglass, shell Filming Technology level, the technical bottleneck of being eager to solve in the industry just.
Summary of the invention
In view of this, the technical matters that the utility model will solve provides and a kind ofly can effectively improve pad pasting accuracy, planeness and speed, improves the automatic pad pasting of the vacuum system of pad pasting effect.
For solving the problems of the technologies described above; The technical scheme that the utility model provides is: the automatic pad pasting of a kind of vacuum system, comprise pad pasting mechanism and suction mechanism, and said pad pasting mechanism comprises the upper and lower cover plate that flexibly connects on one side; Upper cover plate is provided with the loam cake air cavity; Lower cover is provided with detouchable workpiece support plate, and the workpiece support plate is provided with one or more workpiece standing grooves, the upper cover plate bottom surface be provided with the workpiece support plate on workpiece standing groove loam cake pad pasting Attraction block one to one; Loam cake pad pasting Attraction block is provided with the pore that is communicated with the loam cake air cavity; Said suction mechanism comprises vacuum air storage tank and aspirate tube, and said aspirate tube one end is connected with vacuum air storage tank, the other end is connected with the loam cake air cavity, and whether air-breathing aspirate tube be provided with and be used to control suction mechanism suction control valve.
Through above technical scheme, can carry out the vacuum pad pasting operation of split hair caccuracy, planeness and speed, and effectively improve the pad pasting effect.When carrying out the operation of vacuum pad pasting; The screen workpiece of treating pad pasting or outer shell workpiece are put into the workpiece standing groove; After being placed on protective film on the loam cake pad pasting Attraction block, operating personal is stepped on suction control valve and is made that suction mechanism is air-breathing to be adsorbed on protective film on the loam cake pad pasting Attraction block, behind the covers plate closing; Operating personal unclamps suction control valve control suction mechanism and stops suction; Do not receive the protective film of vacuum suction promptly under the effect of air pressure, to stick on screen or case surface, thus realize to screen and shell carry out efficiently, the automatic pad pasting of split hair caccuracy vacuum, overcome unfairness of conventional art pad pasting or pad pasting simultaneously and contain phenomenons such as bubble.
Because above technical scheme only is provided with the pad pasting Attraction block in the upper cover plate bottom surface, therefore can only carry out the single face pad pasting to screen and shell, in order to realize two-sided pad pasting, improve pad pasting efficient to screen, shell.Can be provided with the lower cover air cavity that is communicated with aspirate tube equally at lower cover, and on lower cover same be provided with the workpiece support plate on workpiece standing groove lower cover pad pasting Attraction block one to one, lower cover pad pasting Attraction block is provided with the pore that is communicated with the lower cover air cavity.When carrying out the operation of two-sided vacuum pad pasting; After being placed on protective film on the upper and lower cover pad pasting Attraction block; Operating personal is stepped on suction control valve and is made that suction mechanism is air-breathing to be adsorbed on protective film on the upper and lower cover pad pasting Attraction block, and behind the covers plate closing, operating personal unclamps suction control valve control suction mechanism and stops suction; Do not receive the protective film of vacuum suction promptly under the effect of air pressure, to stick on screen or shell two sides, realize two-sided pad pasting.
Certainly, for realizing screen, the two-sided pad pasting of shell, the workpiece standing groove on the workpiece support plate should be up/down perforation.And the shape of above-mentioned workpiece standing groove is best and the workpiece form fit, so that the staff puts screen or outer shell workpiece in the groove into, improves operating speed.For realizing compatibility to the different model protective film; Each pad pasting mechanism can dispose a plurality of workpiece support plates; Workpiece standing groove with different protective film model couplings is set on every workpiece support plate; When need utilize native system that different model screen or shell are carried out pad pasting, only need to change a cooresponding workpiece support plate and get final product.
Workpiece standing groove quantity on the above-mentioned workpiece support plate can be decided according to the actual requirements; For example can be provided with the workpiece standing groove of three, four, five or other quantity on the workpiece support plate, but be preferably three to five, because the inventor is bright through the overtesting contrast table; When three workpiece standing grooves are set on the workpiece support plate; Volume, the weight of pad pasting mechanism are moderate, easy to operate, help accelerating pad pasting speed and improve the pad pasting effect.The quantity of loam cake pad pasting Attraction block on the upper cover plate and the lower cover pad pasting Attraction block on the lower cover should be corresponding with the quantity of workpiece standing groove; For example; When three workpiece standing grooves were set on the workpiece support plate, the quantity of loam cake pad pasting Attraction block on the upper cover plate and the lower cover pad pasting Attraction block on the lower cover also corresponded to three.
The inventor recognizes that the size of pore, shape, quantity, arrangement situation have considerable influence to the adsorption effect of protective film on the upper and lower cover pad pasting Attraction block, influence the pad pasting effect the most at last.The inventor is through discovering, pore is less, quantity is more, help fixedly protective film of upper and lower cover pad pasting Attraction block absorption during even dense arrangement.Therefore, above-mentioned pore is equidistance, evenly distributed, and the cross-sectional plane of pore is circular or oval, can make the pad pasting Attraction block that protective film is had better adsorption effect.But during actual production; Pore quantity, arrangement mode on the upper and lower cover pad pasting Attraction block can be provided with as required; The inventor sums up through contrast and draws; When pore quantity preferably is set to 25-81, can keep pad pasting mechanism under the situation of lower cost, to be made, can reach optimum vacuum adsorption effect again protective film.Wherein and be preferably 64.These 64 pores are divided into 8 row, 8 row equidistance are arranged, and air vent aperture is set between the 0.5-1.5mm, and the spacing between the pore is set to 0.5-2.0mm, can make that the planeness of pad pasting is better, thereby reaches better pad pasting effect.This be because the spacing between more, the intensive equidistance arrangement of pore and aperture, the pore hour; Can form intensive adsorption plane on the protective film surface; Thereby being flattened, inhales admittedly protective film; Thereby when making the upper and lower cover plate closing, being flattened the solid protective film of suction can not have bubble, smooth sticking at screen or shell.Wherein pore quantity be preferably 64 and be divided into 8 row, 8 row equidistance are arranged; Can make upper and lower cover pad pasting Attraction block that the protective film of different shape, big or small type is all had adsorption effect preferably, more help improving the commonality of upper and lower cover pad pasting Attraction block the different shape protective film.Certainly, when specifically producing, the ranks number that pore is arranged can change according to the shape of protective film; For example; When protective film is the oblong that the horizontal direction limit is long, the vertical direction limit is short, then can reduce by corresponding columns increase, the ranks number that pore is arranged, be example with 50 of stoma numbers; During long to the horizontal direction limit, that the vertical direction limit is short oblong protective film, pore can divide 10 row, 5 row equidistance to arrange.
Between the above-mentioned loam cake pad pasting Attraction block and the spacing between the lower cover pad pasting Attraction block be advisable with 2-5cm; This be because with between the loam cake pad pasting Attraction block and the spacing between the lower cover pad pasting Attraction block be controlled at this spacing range; The compact conformation that helps pad pasting mechanism; The handled easily personnel carry out the pad pasting operation, wherein are preferably 3cm.
The inventor is through discovering, during the pad pasting operation, operating personal can reduce the error job phenomenon through the auxiliary observation of naked eyes, reduces the pad pasting fraction defective.Therefore, said upper and lower cover plate preferably is provided with transparent window, so that operating personal Real Time Observation pad pasting process.Certainly, also can adopt transparent material to make upper and lower cover plate during actual production, so that operating personal Real Time Observation pad pasting situation.Transparent material can be clear plastics, clear glass or crystal, but for reducing the cost of manufacture of pad pasting mechanism, is preferably clear plastics.
Compared with prior art, the utlity model has following advantage:
1, the utility model is through the scientific design to the automatic pad pasting of vacuum system; Introduce vacuum suction mechanism, and cooperate clean pad pasting mechanism, can paste a position accuracy rate, avoid pad pasting to contain bubble improving pad pasting; Realize the dustless purification of pad pasting environment; Fundamentally promote and improve on the basis of pad pasting appearance, significantly improve the pad pasting operating speed, produce than the large economy benefit.
2, the workpiece support plate of the pad pasting mechanism of the utility model can be provided with a plurality of workpiece standing grooves, can carry out the pad pasting operation to a plurality of workpiece simultaneously, can effectively promote operating efficiency.
3, all can be provided with the pad pasting Attraction block on the upper and lower cover plate of the pad pasting mechanism of the utility model, workpiece is carried out two-sided pad pasting operation, help further promoting operating efficiency.
Description of drawings
Fig. 1 is the automatic pad pasting system architecture of this a vacuum schematic block diagram.
The specific embodiment
Below will combine accompanying drawing and embodiment that the utility model is explained in further detail for the ease of it will be appreciated by those skilled in the art that.
As shown in Figure 1, the automatic pad pasting of a kind of vacuum system comprises pad pasting mechanism 1 and suction mechanism.Pad pasting mechanism 1 comprises the upper and lower cover plate that flexibly connects on one side, and upper cover plate is provided with the loam cake air cavity, and lower cover is provided with detouchable workpiece support plate; The workpiece support plate is provided with four workpiece standing grooves, the upper cover plate bottom surface be provided with the workpiece support plate on workpiece standing groove loam cake pad pasting Attraction block one to one, also be that the upper cover plate bottom surface is provided with four loam cake pad pasting Attraction blocks; Spacing is 2cm between each loam cake pad pasting Attraction block; Each loam cake pad pasting Attraction block is provided with 25 pores that are communicated with the loam cake air cavity, and these 25 pores are divided into 5 row, 5 row equidistance, evenly distributed, and the cross-sectional plane of pore is circular; Air vent aperture is set to 0.5mm, and the spacing between the pore is set to 0.5mm.Suction mechanism comprises vacuum air storage tank 21 and aspirate tube 22, and aspirate tube 22 1 ends are connected with vacuum air storage tank 21, the other end is connected with the loam cake air cavity, and whether air-breathing aspirate tube 22 be provided with and be used to control suction mechanism suction control valve 23.In the present embodiment, the shape of workpiece standing groove and workpiece form fit, the upper cover plate setting also has transparent window.
When carrying out the operation of vacuum pad pasting; The screen workpiece of treating pad pasting or outer shell workpiece are put into the workpiece standing groove; After being placed on protective film on each loam cake pad pasting Attraction block; Operating personal is stepped on suction control valve and is made that suction mechanism is air-breathing to be adsorbed on protective film on the loam cake pad pasting Attraction block, and with the covers plate closing, operating personal is observed through transparent window and confirmed protective film and after screen or shell are aimed at; Unclamping suction control valve control suction mechanism stops suction; Do not receive the protective film of vacuum suction promptly under the effect of air pressure, to stick on screen or case surface, thus realize to screen and shell carry out efficiently, the automatic pad pasting of split hair caccuracy vacuum, overcome unfairness of conventional art pad pasting or pad pasting simultaneously and contain phenomenons such as bubble.
Utilize the automatic pad pasting of the vacuum system of present embodiment; Can be simultaneously four screens or shell be carried out the single face vacuum and stick protective film, compare, not only can improve pad pasting speed more than 10 times with the traditional-handwork pad pasting; Also improve accuracy, the planeness of pad pasting greatly, and effectively improved the pad pasting effect.Adopt the actual mobile phone screen single face pad pasting that carries out of the automatic pad pasting of vacuum system of present embodiment, observe the pad pasting effect: the pad pasting accuracy is high, planeness is good and do not have bubble and foreign material, and the product article are mutually good.
Embodiment 2
As shown in Figure 1, the automatic pad pasting of a kind of vacuum system comprises pad pasting mechanism 1 and suction mechanism.Pad pasting mechanism 1 comprises the upper and lower cover plate that flexibly connects on one side; Upper cover plate is provided with the loam cake air cavity, and lower cover is provided with the lower cover air cavity, and lower cover is provided with detouchable workpiece support plate; The workpiece support plate is provided with three workpiece standing grooves, and workpiece standing groove on the workpiece support plate is a up/down perforation.The upper cover plate bottom surface and be respectively equipped with above the lower cover with the workpiece support plate on workpiece standing groove loam cake pad pasting Attraction block and lower cover pad pasting Attraction block one to one, also be the upper cover plate bottom surface and be respectively equipped with three loam cake pad pasting Attraction blocks above the lower cover and three lower cover pad pasting Attraction blocks.Between each loam cake pad pasting Attraction block and the spacing between each lower cover pad pasting Attraction block be 3cm, as shown in Figure 2, each loam cake pad pasting Attraction block is provided with 64 pores that are communicated with the loam cake air cavity, each lower cover pad pasting Attraction block is provided with 64 pores that are communicated with the lower cover air cavity.64 pores on the upper and lower cover pad pasting Attraction block are divided into 8 row, 8 row equidistance, evenly distributed, and the cross-sectional plane of pore is oval, and air vent aperture is set to 1.0mm, and the spacing between the pore is set to 1.0mm.The suction mechanism of present embodiment is similar with the suction mechanism among the embodiment 1, but the aspirate tube 22 of present embodiment suction mechanism also is connected with the lower cover air cavity.
In the present embodiment; The shape of workpiece standing groove and workpiece form fit; But different with embodiment 1 is, upper and lower cover plate adopts the clear plastics material, and the upper and lower cover plate that transparent material is made is convenient to operating personal Real Time Observation pad pasting process; Operating personal can reduce the error job phenomenon through the auxiliary observation of naked eyes, reduces the pad pasting fraction defective.
Because pad pasting mechanism is equipped with the pad pasting Attraction block on upper and lower cover plate in the present embodiment, therefore can overcome the deficiency that embodiment 1 only can carry out the single face pad pasting to screen and shell, realization further improves pad pasting efficient to the two-sided pad pasting of screen, shell.When carrying out the operation of two-sided vacuum pad pasting; After being placed on protective film on the upper and lower cover pad pasting Attraction block; Operating personal is stepped on suction control valve 23 and is made that suction mechanism is air-breathing to be adsorbed on protective film on the upper and lower cover pad pasting Attraction block; Behind the covers plate closing, operating personal unclamps suction control valve 23 control suction mechanisms and stops suction through transparent upper cover plate observation affirmation protective film and after screen or shell are aimed at; Do not receive the protective film of vacuum suction promptly under the effect of air pressure, to stick on screen or shell two sides, realize two-sided pad pasting.
Utilize the automatic pad pasting of the vacuum system of present embodiment; Can be simultaneously three screens or shell be carried out two-sided vacuum and stick protective film, compare, not only can improve pad pasting speed more than 10 times with the traditional-handwork pad pasting; Also improve accuracy, the planeness of pad pasting greatly, and effectively improved the pad pasting effect.Compare with embodiment 1, adopt the automatic pad pasting of the vacuum system of present embodiment a step to accomplish two-sided pad pasting, further accelerate pad pasting speed screen or shell.Adopt the actual mobile phone that carries out of the automatic pad pasting of vacuum system of present embodiment to shield two-sided pad pasting, observe the pad pasting effect: two mask accuracys are high, planeness is good and do not have bubble and foreign material, and the product article are mutually good.
Embodiment 3
The automatic pad pasting system architecture of the vacuum of the vacuum of present embodiment automatic pad pasting system and embodiment 2 is similar, and its difference is:
In the present embodiment, the workpiece support plate is provided with five workpiece standing grooves, and the workpiece standing groove on the workpiece support plate is up/down perforation, upper cover plate bottom surface and be respectively equipped with above the lower cover and do not have a loam cake pad pasting Attraction block and five lower cover pad pasting Attraction blocks.Between each loam cake pad pasting Attraction block and the spacing between each lower cover pad pasting Attraction block be 5cm, each loam cake pad pasting Attraction block is provided with 80 pores that are communicated with the loam cake air cavity, each lower cover pad pasting Attraction block is provided with 80 pores that are communicated with the lower cover air cavity.80 pores on the upper and lower cover pad pasting Attraction block are divided into 10 row, 8 row equidistance are arranged, and air vent aperture is set to 1.5mm, and the spacing between the pore is set to 2.0mm.
Utilize the automatic pad pasting of the vacuum system of present embodiment, can be simultaneously five screens or shell be carried out two-sided vacuum and stick protective film, the automatic pad pasting of the vacuum of present embodiment system comparatively is suitable for area bigger screen or shell are carried out pad pasting.
The foregoing description is the preferred implementation of the utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model inventive concept, any conspicuous replacement also should fall within the protection domain of the utility model.
Claims (9)
1. the automatic pad pasting of vacuum system; Comprise pad pasting mechanism (1) and suction mechanism; It is characterized in that: said pad pasting mechanism (1) comprises the upper and lower cover plate that flexibly connects on one side, and upper cover plate is provided with the loam cake air cavity, and lower cover is provided with detouchable workpiece support plate; The workpiece support plate is provided with one or more workpiece standing grooves; The upper cover plate bottom surface be provided with the workpiece support plate on workpiece standing groove loam cake pad pasting Attraction block one to one, loam cake pad pasting Attraction block is provided with a plurality of pores that are communicated with the loam cake air cavity, said suction mechanism comprises vacuum air storage tank (21) and aspirate tube (22); Said aspirate tube (22) one ends are connected with vacuum air storage tank (21), the other end is connected with the loam cake air cavity, and whether air-breathing aspirate tube be provided with and be used to control suction mechanism suction control valve (23).
2. the automatic pad pasting of vacuum according to claim 1 system; It is characterized in that: said lower cover is provided with the lower cover air cavity that is communicated with aspirate tube (22); Workpiece standing groove above the lower cover on setting and the workpiece support plate is lower cover pad pasting Attraction block one to one, and lower cover pad pasting Attraction block is provided with a plurality of pores that are communicated with the lower cover air cavity.
3. the automatic pad pasting of vacuum according to claim 1 and 2 system, it is characterized in that: said pore is equidistance, evenly distributed, and the cross-sectional plane of pore is circular or oval.
4. the automatic pad pasting of vacuum according to claim 3 system, it is characterized in that: said air vent aperture is set to 0.5-1.5mm, and the spacing between the pore is 0.5-2.0mm.
5. the automatic pad pasting of vacuum according to claim 4 system is characterized in that: the number of said pore is 25-81.
6. the automatic pad pasting of vacuum according to claim 5 system, it is characterized in that: the number of said pore is 64, these 64 pores are divided into 8 row, 8 row equidistance are arranged.
7. the automatic pad pasting of vacuum according to claim 1 and 2 system is characterized in that: three to five workpiece standing grooves are set on the said workpiece support plate.
8. the automatic pad pasting of vacuum according to claim 7 system is characterized in that: the workpiece standing groove up/down perforation on the said workpiece support plate, and the shape of said workpiece standing groove and workpiece form fit.
9. the automatic pad pasting of vacuum according to claim 1 and 2 system, it is characterized in that: said upper and lower cover plate is provided with transparent window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202943897U CN202180947U (en) | 2011-08-15 | 2011-08-15 | Vacuum automatic coating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202943897U CN202180947U (en) | 2011-08-15 | 2011-08-15 | Vacuum automatic coating system |
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| Publication Number | Publication Date |
|---|---|
| CN202180947U true CN202180947U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202943897U Expired - Lifetime CN202180947U (en) | 2011-08-15 | 2011-08-15 | Vacuum automatic coating system |
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| CN (1) | CN202180947U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424135A (en) * | 2011-08-15 | 2012-04-25 | 格林精密部件（惠州）有限公司 | Vacuum automatic film pasting system |
| CN102649484A (en) * | 2012-04-06 | 2012-08-29 | 达运精密工业（苏州）有限公司 | Protective film-attaching method and protective film |
| CN103863608A (en) * | 2012-12-17 | 2014-06-18 | 汉达精密电子(昆山)有限公司 | Full-automatic protective film sticking and remnant removing mechanism |
| CN105280533A (en) * | 2015-10-30 | 2016-01-27 | 中国电子科技集团公司第四十四研究所 | Device for light window glass sheet batch die-filling |
| CN105292576A (en) * | 2015-10-29 | 2016-02-03 | 金龙机电（东莞）有限公司 | Auxiliary film coating equipment and film coating method thereof |
-
2011
- 2011-08-15 CN CN2011202943897U patent/CN202180947U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424135A (en) * | 2011-08-15 | 2012-04-25 | 格林精密部件（惠州）有限公司 | Vacuum automatic film pasting system |
| CN102424135B (en) * | 2011-08-15 | 2014-04-23 | 格林精密部件（惠州）有限公司 | Vacuum automatic film pasting system |
| CN102649484A (en) * | 2012-04-06 | 2012-08-29 | 达运精密工业（苏州）有限公司 | Protective film-attaching method and protective film |
| CN103863608A (en) * | 2012-12-17 | 2014-06-18 | 汉达精密电子(昆山)有限公司 | Full-automatic protective film sticking and remnant removing mechanism |
| CN103863608B (en) * | 2012-12-17 | 2016-01-27 | 汉达精密电子(昆山)有限公司 | Full automaticity pasting protective film and stubborn stub bar mechanism |
| CN105292576A (en) * | 2015-10-29 | 2016-02-03 | 金龙机电（东莞）有限公司 | Auxiliary film coating equipment and film coating method thereof |
| CN105280533A (en) * | 2015-10-30 | 2016-01-27 | 中国电子科技集团公司第四十四研究所 | Device for light window glass sheet batch die-filling |
| CN105280533B (en) * | 2015-10-30 | 2017-10-27 | 中国电子科技集团公司第四十四研究所 | The device die-filling for light window glass piece batch |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120404 Effective date of abandoning: 20140423 |
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| RGAV | Abandon patent right to avoid regrant |