CN114296277B - Glue injection sealing structure device and method for peripheral frame of LCD (liquid crystal display) large-plate glass - Google Patents
Glue injection sealing structure device and method for peripheral frame of LCD (liquid crystal display) large-plate glass Download PDFInfo
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- CN114296277B CN114296277B CN202111384517.1A CN202111384517A CN114296277B CN 114296277 B CN114296277 B CN 114296277B CN 202111384517 A CN202111384517 A CN 202111384517A CN 114296277 B CN114296277 B CN 114296277B
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- 239000003292 glue Substances 0.000 title claims abstract description 141
- 238000002347 injection Methods 0.000 title claims abstract description 122
- 239000007924 injection Substances 0.000 title claims abstract description 122
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000005357 flat glass Substances 0.000 title claims abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 6
- 239000011521 glass Substances 0.000 claims abstract description 33
- 239000002390 adhesive tape Substances 0.000 claims description 31
- 239000000084 colloidal system Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000499 gel Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention discloses a glue injection sealing structure device and method for a peripheral frame of LCD (liquid crystal display) large-plate glass, and relates to the technical field of LCD processing. In the invention: one end of the main frame rubber strip is connected with an inner periphery extension structure, and the other end of the main frame rubber strip is connected with an outer periphery extension structure; one end of each auxiliary frame rubber strip is connected with an inner periphery extension structure matched with the outer periphery extension structure of one main frame rubber strip, and the other end of each auxiliary frame rubber strip is connected with an outer periphery extension mechanism matched with the inner periphery extension structure of the other main frame rubber strip; the inner periphery extending structure connected with the main frame rubber strip in the same side direction and the inner periphery extending structure connected with the auxiliary frame rubber strip are arranged in the same direction. One side of the glue injection device is provided with three distance sensing modules and a glue injection needle tube. The method is convenient for cleaning the large glass plate before screen printing of the product, can effectively avoid the phenomenon that the glue is infected towards the inner side of the seal due to excessive glue injection during glue injection, and further improves the yield of the large glass plate product.
Description
Technical Field
The invention relates to the technical field of LCD processing, in particular to a device and a method for a glue injection sealing structure of a peripheral frame of LCD large-plate glass.
Background
The production process of the liquid crystal display device is generally divided into a front stage (front process) and a middle stage (middle and rear process). The main purpose of the front section is to make two large glass plates into patterns and then to stick the patterns together, and to arrange and distribute actually required products in the large glass plates, which is commonly called as large glass plates (as shown in figure I), and the main purpose of the middle and rear section production is to cut and separate a series of distributed and arranged product zones and then carry out independent processing production. Some products in the middle and rear section processing technology need to increase the surface silk screen of the product for filtering light or displaying needed patterns. The processing of the product has two schemes: (1) After a large product plate is cut into single-grain products, carrying out surface silk-screen printing or spraying on each grain of products independently; (2) Carrying out surface silk-screen printing or spraying patterns on the product before cutting the large plate of the product, which is commonly called as: and (4) printing in full page. The second scheme has high production efficiency and is widely adopted in the industry at present. However, when the scheme is adopted, the surface cleanliness of the product cannot be ensured in the front-section processing production process of the large-plate glass, so that the production yield is reduced and a large amount of reworking is caused during full-page silk printing or spraying.
The surface of the large glass plate can be cleaned of dirt and particle dust by a chemical solvent and deionized water (pure water) before silk-screen printing, so that the surface of the large glass plate is clean.
In addition, in the process of fitting and matching the large glass plate, due to the original design scheme of the frame in the large glass plate, more opening areas are inevitably formed. The final process of the front section processing of the large-plate glass requires silk-screen printing or coating a circle of epoxy resin glue on the periphery of the product. The glue needs to be firmly bonded by polymerization reaction at high temperature (140-200 ℃); since the product is deformed at high temperature and the gap between the products cannot be ensured, a certain pressure (0.6 kfg/cm) needs to be increased 2 ～1.2kgf/cm 2 ) Pressing the product. The epoxy resin glue starts to polymerize and solidify at high temperature and high pressure, and the glue changes from a colloidal state to a solid state. In the process, certain gas is separated out during the polymerization reaction of the epoxy glue, and the air between the two pieces of large-plate glass is expanded at high temperature. Therefore, when the current black-white liquid crystal display device is designed with a large panel, the periphery of the large panel is not closed but is completely opened.
In conclusion, the surface of a product is cleaned on a large glass plate, the opening structure of the frame needs to be sealed, the common sealing mode is that glue is directly injected to the opening of the frame for sealing, but the inside of the frame is easily infected during glue injection. Therefore, how to avoid the infection of the glue to the inside when glue is injected to the edge opening of the large plate glass becomes a problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the device and the method for the glue injection sealing structure of the peripheral frame of the large LCD glass plate, which are convenient for cleaning the large LCD glass plate before product silk-screen printing, can effectively avoid the phenomenon that glue is infected towards the inner side of a seal due to excessive glue injection during glue injection, and further improve the yield of the large LCD glass plate.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an LCD large-plate glass peripheral frame glue injection sealing structure device which comprises a group of main frame adhesive tapes and a group of auxiliary frame adhesive tapes, wherein the head and tail positions of the main frame adhesive tapes are mutually matched; one end of each auxiliary frame rubber strip is connected with an inner periphery extension structure matched with the outer periphery extension structure of one main frame rubber strip, and the other end of each auxiliary frame rubber strip is connected with an outer periphery extension mechanism matched with the inner periphery extension structure of the other main frame rubber strip; the inner periphery extending structure connected with the main frame rubber strip at the same side direction and the inner periphery extending structure connected with the auxiliary frame rubber strip are arranged in the same direction.
The inner wall extension structure sequentially comprises a first transverse strip, a first longitudinal strip, a first oblique strip and an inner extension strip, the first transverse strip is perpendicularly connected with one end of the main frame adhesive tape or the auxiliary frame adhesive tape, one end of the first longitudinal strip is perpendicularly connected with the first transverse strip, one end of the first oblique strip is connected to the other end of the first longitudinal strip, and the inner extension strip is connected to the other end of the first oblique strip.
The peripheral extension mechanism sequentially comprises a second oblique strip and a second transverse strip, one end of the second oblique strip is obliquely connected with the other end of the main frame rubber strip or the other end of the auxiliary frame rubber strip, one end of the second transverse strip is connected with the other end of the second oblique strip, and a positioning notch is formed between the second transverse strip and the second oblique strip.
Between adjacent inner periphery extension structure and peripheral extension mechanism: a separation strip is fixedly arranged between the first transverse strip and the second transverse strip, an injection channel is formed between the separation strip and the first transverse strip, a backflow channel is formed between the separation strip and the second transverse strip, a conduction opening is formed between the separation strip and the first longitudinal strip, an oblique filling channel communicated with the backflow channel is formed between the first oblique strip and the second oblique strip, and an extension filling channel is formed between the inner extension strip and the adjacent auxiliary frame rubber strip or main frame rubber strip.
The glue injection sealing structure device comprises a glue injection device, a main processing controller is arranged in the glue injection device, and three distance sensing modules and a glue injection needle tube are arranged on one side of the glue injection device.
As an optimized technical scheme of the frame glue injection sealing structure device provided by the invention: the first transverse strip, the separating strip and the second transverse strip are parallel to each other; the length of the separating strip is the same as that of the second transverse strip, and the separating strip is aligned with the head end and the tail end of the second transverse strip; the length of the first transverse strip is greater than the length of the separator strip.
As an optimal technical scheme of the frame glue injection sealing structure device provided by the invention: the first oblique strip and the second oblique strip are parallel to each other, and the inner extension strip and the first longitudinal strip are parallel to each other.
As an optimized technical scheme of the frame glue injection sealing structure device provided by the invention: the conduction opening between the separation strip and the first longitudinal strip is aligned with the opening at one side of the oblique filling channel, and the width size of the conduction opening is the same as the opening width size of the oblique filling channel.
As an optimized technical scheme of the frame glue injection sealing structure device provided by the invention: the length dimension of the first oblique strip is the same as that of the second oblique strip, and the length dimension of the second transverse strip is smaller than that of the second oblique strip.
As an optimized technical scheme of the frame glue injection sealing structure device provided by the invention: the three distance sensing modules of the glue injection device are sequentially a first distance sensing module used for sensing and detecting the main frame adhesive tape or the auxiliary frame adhesive tape, a second distance sensing module used for sensing and detecting the positioning notch, and a third distance sensing module used for sensing and detecting the depth of the real-time glue in the backflow channel.
As an optimized technical scheme of the frame glue injection sealing structure device provided by the invention: the glue injection device is provided with a telescopic mechanism for controlling the displacement of the glue injection needle tube, and the glue injection needle tube of the glue injection device is matched with the injection channel.
The invention relates to a glue injection sealing method for a peripheral frame of LCD large-plate glass, which comprises the following steps:
(1) The glue injection device travels along the peripheral area of the edge side matched with the main frame adhesive tape and the auxiliary frame adhesive tape end to end, the first distance sensing module and the second distance sensing module sense and detect distance parameter information in real time, and when the second distance sensing module senses and detects the distance parameter meeting the glue injection parking condition, the glue injection device is parked to prepare glue injection. (2) When the glue injection device stops, the third distance sensing module of the glue injection device transmits the acquired distance parameter information to the main processing controller, and the main processing controller monitors the glue injection state in the backflow channel. (3) If the backflow channel is in an empty glue state, the main processing controller drives the telescopic mechanism to act, the glue injection needle tube extends into the inner side of the opening of the injection channel, glue injection is started, and glue enters the backflow channel and the inclined filling channel from the injection channel, passes through the conduction opening and enters the backflow channel. (4) When the distance sensed and detected by the third distance sensing module is not more than the backflow filling depth and not less than the distance of the main frame adhesive tape or the auxiliary frame adhesive tape initially sensed and detected by the first distance sensing module, the glue injection device controls the glue injection needle tube to stop glue injection, the glue injection needle tube retracts through the telescopic mechanism, the glue injection device continues to advance along the peripheral area of the side where the main frame adhesive tape and the auxiliary frame adhesive tape are matched in a head-tail mode, and the other glue injection position to be injected in the side direction advances.
As an optimal technical scheme of the frame glue injection sealing method, the method comprises the following steps: the distance of the main frame adhesive tape or the auxiliary frame adhesive tape detected by the initial sensing of the first distance sensing module is set to be L 1 Setting the distance parameter sensed and detected by the second distance sensing module as L 2 And setting the distance parameter initially sensed and detected by the third distance sensing module when the glue injection device stops to be L 3 Setting the width dimension of the opening of the oblique filling passage as D X (ii) a (1) When L is 2 ＝L 1 D, wherein D is the depth size of the positioning notch, and the distance parameter sensed and detected by the second distance sensing module accords with the distance parameter of glue injection parking; (2) after the glue injection device is stopped, if L is 3 ＝L 1 + H, the current backflow channel is in an empty glue state, wherein H is the depth size of the backflow channel; (3) after the glue injection device starts injecting glue, if L is 1 ≤L 3 ≤L Z Then the main processing controller judges that the sealing and glue injection are finished, wherein L Z To reflow the filling depth, L Z ＝L 1 +H-λD X And lambda is the extension filling matching coefficient, and lambda is more than 1.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the glue injection sealing structure with the backflow channel and the oblique filling channel is arranged between the main frame rubber strip and the auxiliary frame rubber strip, glue injection is linearly performed through the glue injection device, and the injection state of glue in the backflow channel is monitored, so that the glue injection sealing operation is assisted to be completed, the cleaning of the large glass before the silk-screen printing processing of products is facilitated, the phenomenon that the glue is infected to the inner side of the seal due to excessive glue injection during glue injection can be effectively avoided, and the yield of large glass products is further improved.
Drawings
FIG. 1 is a schematic structural view of an integral frame of a large glass panel according to the present invention;
FIG. 2 is a schematic view of the structure of the glue injection seal at A in FIG. 1;
FIG. 3 is a schematic structural view of the glue injection device injecting glue to the glue injection seal in the present invention;
FIG. 4 is a schematic view of the process of injecting glue, curing and cleaning large glass plate in the present invention;
wherein: 1-main frame adhesive tape, 101-first transverse strip, 102-first longitudinal strip, 103-first oblique strip, 104-inner extension strip; 2-auxiliary frame adhesive tape, 201-second oblique strip, 202-second transverse strip; 3-LCD; 4-a dividing strip; 5-an injection channel; 6-a return channel; 7-a conduction port; 8-oblique filling channels; 9-extending the filling channel; 10-positioning notches; 11-a glue injection device; 12-a first distance sensing module; 13-a second distance sensing module; 14-a third distance sensing module; 15-a telescoping mechanism; 16-glue injection needle tube; 17-main process controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
The production process of the liquid crystal display device is generally divided into a front stage (front process) and a middle stage (middle and rear process). The main purpose of the front section is to make two pieces of large glass plates into patterns and then to stick the patterns together, and to arrange and distribute the actually required products in the large glass plates (LCD 3 in figure 1), which is commonly called as large glass plates. In the invention, a combined frame of a group of main frame rubber strips 1 and a group of auxiliary frame rubber strips 2 is designed for large-plate glass in figures 1 and 2. One end of each main frame rubber strip 1 is connected with a combined structure of a first transverse strip 101, a first longitudinal strip 102, a first oblique strip 103 and an inner extension strip 104, the other end of each main frame rubber strip 1 is connected with a combined structure of a second oblique strip 201 and a second transverse strip 202, and two ends of each auxiliary frame rubber strip 2 are also arranged in the same structure. The main frame rubber strip 1 and the auxiliary frame rubber strip 2 are connected end to end in a matched mode, and a colloid injection sealing structure with an injection channel 5, a backflow channel 6, an oblique filling channel 8 and an extension filling channel 9 is formed at the connection position. Simultaneously, the colloid injection seal structure in the same side direction is arranged according to the same direction, so that the forward sequential glue injection is more convenient when the glue injection seal is carried out.
Example two
Referring to fig. 2 and 3, when the second distance sensing module 13 of the glue injection device 11 senses and detects the positioning notch 10[ corresponding distance parameter information ], the glue injection device 11 stops, the third distance sensing module 14 detects a glue injection state in the return channel, and if the detected distance parameter is that glue has been injected, the glue injection device 11 continues to advance to find a next position for sealing and injecting glue. If it is current return channel 6 is in the empty state of gluing, then injecting glue device 11 begins the injecting glue to injection channel 5 through injecting glue needle tubing 16, from the colloid that injection channel 5 injected into, get into return channel 6 and slant filling channel 8 through conduction opening 7, when the colloid in return channel 6 reachs a quantitative time, then some colloids have also been injected into in the slant filling channel 8, the colloid forms the separation to big board glass inside in the return channel 6, when big board glass carries out product surface cleanness at anterior segment processing production process, avoid the cleaning solution to permeate to seal inside.
EXAMPLE III
In the present invention, the reflow filling depth L Z And the opening width dimension D of the inclined filling channel 8 X Related, L Z ＝L 1 +H-λD X The determination of the extension filling matching coefficient lambda needs to meet some specific conditions, and in the glue injection process, the glue needs to be submerged into a connecting port of the oblique filling channel 8 and the backflow channel 6 and a certain amount of glue needs to enter the oblique filling channel 8, so that the oblique filling channel 8 is completely and stably sealed. Assuming that the ratio of the channel cross-section of the diagonal filling channel 8 to the channel cross-section of the return channel 6 is 1, after the gel has crossed the connecting opening of the diagonal filling channel 8 and the return channel 6, there may be a travel depth of 1 unit of gel in the diagonal filling channel 8 for every 1 unit of extension of the gel out of the return channel 6. So according to the specific filling depth of the colloid in the inclined filling channel 8, the colloid is filledThe depth parameter of the colloid needed to be reflowed and filled in the reflow channel 6 can be judged.
In the present invention, the length dimension of the second transverse strip 202 is smaller than the length dimension of the second oblique strip 201 of the oblique filling channel 8, that is, the depth of the oblique filling channel 8 extending obliquely into the large glass plate is longer than the depth dimension of the backflow channel 6[ the second transverse strip 202 section ], in the case of the above cross-section ratio of 1, when the colloid is filled in the backflow channel 6, the colloid in the backflow channel will not flow into the extension filling channel 9, even if a small amount of colloid is extruded out of the oblique filling channel 8, the inner extension strip 104 can realize the separation, and the colloid will not enter the fit inside of the large glass plate.
Example four
Referring to fig. 4, in the process of injecting the seal according to the present invention, the glue injected into the seal in the process 2 may be an ultraviolet curing resin glue (commonly referred to as UV glue), which needs to be cured by ultraviolet rays after being dispensed; silica gel can also be used, and the glue needs to be naturally air-dried after dispensing.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a peripheral frame injecting glue sealing structure device of LCD large sheet glass, peripheral frame include a set of main frame adhesive tape (1) and a set of vice frame adhesive tape (2) that head and the tail position mutually supported, its characterized in that:
one end of each main frame rubber strip (1) is connected with an inner periphery extension structure, and the other end of each main frame rubber strip (1) is connected with an outer periphery extension structure; one end of each auxiliary frame rubber strip (2) is connected with an inner periphery extending structure matched with the outer periphery extending structure of one main frame rubber strip (1), and the other end of each auxiliary frame rubber strip (2) is connected with an outer periphery extending mechanism matched with the inner periphery extending structure of the other main frame rubber strip (1);
the inner periphery extending structure connected with the main frame rubber strip (1) in the same side direction and the inner periphery extending structure connected with the auxiliary frame rubber strip (2) are arranged in the same direction;
the inner periphery extending structure sequentially comprises a first transverse strip (101), a first longitudinal strip (102), a first oblique strip (103) and an inner extending strip (104), the first transverse strip (101) is vertically connected with one end of the main frame rubber strip (1) or the auxiliary frame rubber strip (2), one end of the first longitudinal strip (102) is vertically connected with the first transverse strip (101), one end of the first oblique strip (103) is connected with the other end of the first longitudinal strip (102), and the inner extending strip (104) is connected with the other end of the first oblique strip (103);
the peripheral extension mechanism sequentially comprises a second oblique strip (201) and a second transverse strip (202), one end of the second oblique strip (201) is obliquely connected with the other end of the main frame rubber strip (1) or the auxiliary frame rubber strip (2), one end of the second transverse strip (202) is connected with the other end of the second oblique strip (201), and a positioning notch (10) is formed between the second transverse strip (202) and the second oblique strip (201);
between adjacent inner periphery extension structure and peripheral extension mechanism: a separation strip (4) is fixedly arranged between the first transverse strip (101) and the second transverse strip (202), an injection channel (5) is formed between the separation strip (4) and the first transverse strip (101), a return channel (6) is formed between the separation strip (4) and the second transverse strip (202), a conduction opening (7) is formed between the separation strip (4) and the first longitudinal strip (102), an inclined filling channel (8) communicated with the return channel (6) is formed between the first inclined strip (103) and the second inclined strip (201), and an extending filling channel (9) is formed between the inner extension strip (104) and the adjacent auxiliary frame adhesive tape (2) or main frame adhesive tape (1);
the glue injection sealing structure device comprises a glue injection device (11), a main processing controller (17) is arranged in the glue injection device (11), and three distance sensing modules and a glue injection needle tube (16) are arranged on one side of the glue injection device (11).
2. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
the first transverse strip (101), the separating strip (4) and the second transverse strip (202) are mutually parallel;
the length of the separating strip (4) is the same as that of the second transverse strip (202), and the separating strip (4) is aligned with the head end and the tail end of the second transverse strip (202);
the length of the first transverse strip (101) is greater than the length of the dividing strip (4).
3. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
the first oblique strip (103) and the second oblique strip (201) are parallel to each other, and the inner extension strip (104) and the first longitudinal strip (102) are parallel to each other.
4. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
the conduction opening (7) between the separation strip (4) and the first longitudinal strip (102) is aligned with the opening position on one side of the inclined filling channel (8), and the width dimension of the conduction opening (7) is the same as the opening width dimension of the inclined filling channel (8).
5. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
the length dimension of the first oblique strip (103) is the same as that of the second oblique strip (201), and the length dimension of the second transverse strip (202) is smaller than that of the second oblique strip (201).
6. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
three distance sensing modules of the glue injection device (11) are sequentially a first distance sensing module (12) used for sensing and detecting the main frame adhesive tape (1) or the auxiliary frame adhesive tape (2), a second distance sensing module (13) used for sensing and detecting the positioning notch (10) and a third distance sensing module (14) used for sensing and detecting the real-time colloid depth in the backflow channel (6).
7. The LCD large panel glass peripheral frame glue injection sealing structure device according to claim 1, characterized in that:
the glue injection device (11) is provided with a telescopic mechanism (15) used for controlling the displacement of the glue injection needle tube (16), and the glue injection needle tube (16) of the glue injection device (11) is matched with the injection channel (5).
8. A method for sealing the peripheral frame of a large LCD glass plate by glue injection, which is characterized in that the structural device for sealing the peripheral frame of the large LCD glass plate by glue injection disclosed by any one of claims 1 to 7 is adopted, and comprises the following contents:
(1) The glue injection device travels along a side peripheral area where the main frame adhesive tape and the auxiliary frame adhesive tape are matched end to end, the first distance sensing module and the second distance sensing module sense and detect distance parameter information in real time, and when the second distance sensing module senses and detects distance parameters which accord with glue injection parking, the glue injection device is parked to prepare glue injection;
(2) When the glue injection device stops, a third distance sensing module of the glue injection device transmits the acquired distance parameter information to a main processing controller, and the main processing controller monitors the glue injection state in the return channel;
(3) If the backflow channel is in an empty glue state, the main processing controller drives the telescopic mechanism to act, the glue injection needle tube extends into the inner side of the opening of the injection channel, glue injection is started, and glue enters from the injection channel, passes through the conduction port, enters the backflow channel and the oblique filling channel;
(4) When the distance sensed and detected by the third distance sensing module is not more than the backflow filling depth and not less than the distance of the main frame adhesive tape or the auxiliary frame adhesive tape initially sensed and detected by the first distance sensing module, the glue injection device controls the glue injection needle tube to stop glue injection, the glue injection needle tube retracts through the telescopic mechanism, the glue injection device continues to advance along the peripheral area of the side where the main frame adhesive tape and the auxiliary frame adhesive tape are matched in a head-tail mode, and the other glue injection position to be injected in the side direction advances.
9. The glue injection sealing method for the peripheral frame of the glass of the LCD large panel as claimed in claim 8, wherein:
the distance of the main frame adhesive tape or the auxiliary frame adhesive tape detected by the initial sensing of the first distance sensing module is set to be L 1 Setting the distance parameter sensed and detected by the second distance sensing module as L 2 Setting the distance parameter sensed and detected by the third distance sensing module as L 3 Setting the width dimension of the opening of the oblique filling passage as D X ；
(1) When L is 2 ＝L 1 D, wherein D is the depth size of the positioning notch, and the distance parameter sensed and detected by the second distance sensing module accords with the distance parameter of glue injection parking; (2) after the glue injection device stops, if L 3 ＝L 1 + H, the current backflow channel is in an empty glue state, wherein H is the depth size of the backflow channel; (3) after the glue injection device starts injecting glue, if L is 1 ≤L 3 ≤L Z Then the main processing controller judges that the sealing and glue injection are finished, wherein L Z To reflow the fill depth, L Z ＝L 1 +H-λD X λ is the extension filling fitting coefficient, λ > 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111384517.1A CN114296277B (en) | 2021-11-18 | 2021-11-18 | Glue injection sealing structure device and method for peripheral frame of LCD (liquid crystal display) large-plate glass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111384517.1A CN114296277B (en) | 2021-11-18 | 2021-11-18 | Glue injection sealing structure device and method for peripheral frame of LCD (liquid crystal display) large-plate glass |
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| CN114296277A CN114296277A (en) | 2022-04-08 |
| CN114296277B true CN114296277B (en) | 2023-04-14 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293773A (en) * | 2012-09-24 | 2013-09-11 | 上海中航光电子有限公司 | Frame glue coating method, mother board, LCD panel, manufacturing method and LCD device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06230351A (en) * | 1993-02-01 | 1994-08-19 | Canon Inc | Liquid crystal display device |
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| CN103293773A (en) * | 2012-09-24 | 2013-09-11 | 上海中航光电子有限公司 | Frame glue coating method, mother board, LCD panel, manufacturing method and LCD device |
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