Gluing device for LCD liquid crystal screen production

Abstract

The invention relates to the technical field of liquid crystal screen processing, in particular to a gluing device for LCD liquid crystal screen production, which comprises a bottom frame, a horizontal double-shaft motion platform, a lifting motion platform, a glue feeder, a glue outlet, a placing plate and the like, a horizontal double-shaft motion platform is arranged on the bottom frame; the moving part of the horizontal double-shaft moving platform is fixedly connected with a lifting moving platform; a motion part of the lifting motion platform is fixedly connected with a glue feeder; a glue outlet is formed in the lower end of the glue feeder; the bottom frame is fixedly connected with a placing plate; and a placing groove is formed in the placing plate. Dust, fingerprints or other stains on the side of the liquid crystal screen are wiped through the cleaning roller, hot air exhausted by the first exhaust outlet is used for drying residual cleaning liquid on the liquid crystal screen, meanwhile, the glue outlet follows the rear portion of the cleaning roller to conduct gluing on the side of the liquid crystal screen, and therefore the procedure of cleaning the liquid crystal screen independently is omitted, and the production efficiency is improved. And the procedure of gluing the liquid crystal screen is optimized, and the gluing efficiency of the liquid crystal screen is improved.

Description

Technical Field

[0001] The invention relates to the technical field of liquid crystal screen processing, and in particular to a glue coating device used for LCD liquid crystal screen production. Background Art

[0002] In the prior art, before assembling the LCD screen and the shell, glue needs to be applied to the sides of the LCD screen so that the LCD screen and the shell are tightly attached and sealed. Before gluing, the LCD screen needs to go through a cleaning process. The cleaning process is a necessary step before gluing, and its purpose is to wipe off dust, fingerprints or other stains at the gluing position of the LCD screen to avoid affecting the gluing quality. In the prior process, the cleaning process and the gluing process are performed separately, and the cleaning process is still performed manually, which results in a long time spent on assembling the LCD screen and the shell. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the existing process in which the cleaning process and the gluing process are carried out separately, and the cleaning process is still performed manually, resulting in a long time-consuming assembly of the LCD screen and the shell. The cleaning and gluing can be carried out simultaneously, thereby optimizing the process of gluing the LCD screen and improving the gluing efficiency of the LCD screen.

[0004] Another object of the present invention is to provide a glue coating device for LCD liquid crystal screen production with the above-mentioned function.

[0005] The embodiment of the present invention is realized by the following technical scheme: a glue coating device for LCD liquid crystal screen production, comprising a base frame, a horizontal biaxial motion platform, a lifting motion platform, a glue feeder, a glue outlet and a placement plate; a horizontal biaxial motion platform is arranged on the base frame; the moving part of the horizontal biaxial motion platform is fixedly connected to the lifting motion platform; the glue feeder is fixedly connected to the moving part of the lifting motion platform; the glue outlet is installed at the lower end of the glue feeder; a placement plate is fixedly connected to the base frame; a placement slot is provided on the placement plate; a power assembly, a connecting frame, a horizontal plate, a cleaning assembly, a cleaning roller, a blocking assembly, an exhaust hood and a glue brushing assembly; the glue feeder is connected to the power assembly; the power assembly is connected to There is a connecting frame; a horizontal plate is fixedly connected to the connecting frame, and the horizontal plate is rotatably connected to the glue feeder; a cleaning assembly is connected to the left part of the horizontal plate; a cleaning roller for cleaning the LCD screen is connected to the cleaning assembly, and the cleaning assembly is used to wet the cleaning roller with a cleaning liquid; an exhaust hood for drying the cleaning liquid is rotatably connected to the glue outlet, and an air inlet pipe is provided on the exhaust hood; an exhaust port 1 is provided on the side of the exhaust hood facing the cleaning roller; a blocking assembly is connected to the lower part of the horizontal plate; the exhaust hood is connected to the blocking assembly, and the blocking assembly is used to block the exhaust port 1; a glue brushing assembly for evenly applying glue is connected to the right part of the horizontal plate; a power assembly is used to drive the cleaning roller and the exhaust hood to rotate.

[0006] Preferably, the cleaning assembly includes a circular shaft, an electric push rod 1, an electric push rod 2, a storage box, a support plate, a spring, a fixed bar and a vertical rod; the left part of the horizontal plate is rotatably connected to the circular shaft; two electric push rods 1 are fixedly connected to the circular shaft; the upper surface of the horizontal plate is movably connected to two electric push rods 2; the telescopic parts of the two electric push rods 2 are movably connected to the circular shaft; the telescopic parts of the two electric push rods 2 are fixedly connected to the storage box; a liquid inlet pipe is provided on the storage box; the front and rear parts of the storage box are each slidably connected to a support plate; the lower parts of the two support plates are rotatably connected to the cleaning roller; a spring is fixedly connected between each support plate and the storage box; two fixed bars are fixedly connected to the upper parts of the two support plates; each fixed bar is fixedly connected to a number of equidistantly distributed vertical rods, and all the vertical rods are plugged into the storage box; a movable space is reserved between the storage box and the outer surface of the cleaning roller.

[0007] Preferably, the sealing assembly includes an electric push rod three, a conical frame, a connecting rod and a sealing plate; two electric push rods three are fixedly connected to the lower surface of the horizontal plate; the telescopic parts of the two electric push rods three are commonly fixedly connected to the conical frame; two connecting rods are fixedly connected to the lower part of the conical frame, and the two connecting rods pass through the exhaust hood; a sealing plate is commonly fixedly connected to the two connecting rods, and the sealing plate is in contact with the inner wall of the exhaust hood; an exhaust port two is provided at the lower part of the exhaust hood.

[0008] Preferably, the glue brushing assembly includes an electric push rod four, a fixed block and a glue coating roller; two electric push rods four are fixedly connected to the right part of the horizontal plate; the telescopic parts of the two electric push rods four are commonly fixedly connected to the fixed block; and the glue coating roller is rotatably connected to the fixed block.

[0009] Preferably, a baffle is further included; the baffle is fixedly connected to the lower surface of the horizontal plate, and the baffle is located behind the glue outlet.

[0010] Preferably, the bottom surface of the baffle is made of flexible rubber material.

[0011] Preferably, a rectangular groove is provided on the placement plate, and the rectangular groove is located outside the placement groove.

[0012] Preferably, a scraping assembly is also included, and the baffle is connected to a scraping assembly for scraping residual glue; the scraping assembly includes a mounting block, micro motor 1, a fixing seat, a connecting shaft, a scraping strip and micro motor 2; the mounting block is fixedly connected to the rear side of the baffle; micro motor 1 is fixedly connected to the mounting block; the output shaft of micro motor 1 is fixedly connected to the fixing seat; a strip groove is opened on the baffle; a connecting shaft is rotatably connected to the fixing seat, and the connecting shaft is located in the strip groove; a scraping strip is fixedly connected to the connecting shaft, and the scraping strip is located on the front side of the baffle; micro motor 2 is fixedly connected to the rear side of the fixing seat, and the output shaft of micro motor 2 is fixedly connected to the connecting shaft.

[0013] Preferably, a self-cleaning component is also included, and a self-cleaning component for cleaning the glue on the glue coating roller is connected to the placement plate; the self-cleaning component includes a guide plate, a bracket, a drive roller, a micro motor three and a scraper; a guide groove is opened on the placement plate, and the guide groove is connected to the rectangular groove; a guide plate is fixedly connected to the outer side of the placement plate, and the guide plate is connected to the guide groove; a bracket is fixedly connected in the rectangular groove; a drive roller is rotatably connected in the bracket; a micro motor three is fixedly connected to the outer side of the bracket; the output shaft of the micro motor three is fixedly connected to the drive roller; a scraper is fixedly connected to the lower part of the bracket; and a drainage groove is opened on the scraper.

[0014] Preferably, the rectangular groove is inclined as a whole, and the left front part of the rectangular groove is at the lowest point.

[0015] Beneficial effects of the present invention: The gluing device for LCD screen production obtained by the above design of the present invention wipes dust, fingerprints or other stains on the side of the LCD screen through a cleaning roller, and uses hot air discharged from an exhaust port to dry the cleaning liquid remaining on the LCD screen. At the same time, the glue outlet follows the rear of the cleaning roller to apply glue to the side of the LCD screen, thereby eliminating the process of cleaning the LCD screen separately, optimizing the process of gluing the LCD screen, and improving the gluing efficiency of the LCD screen.

[0016] The glue coating device for LCD screen production obtained by the above design of the present invention intercepts the glue by the baffle plate, thereby preventing a large amount of glue from flowing to the inner side of the LCD screen and covering the electronic components of the LCD screen, thereby affecting the normal use and heat dissipation of the electronic components.

[0017] The glue coating device for LCD screen production obtained by the above design of the present invention, when the glue outlet is separated from the liquid crystal screen, the hot air blown out by the second exhaust port melts the drawing glue between the glue outlet and the liquid crystal screen, while part of the glue is still attached to the lower end of the glue outlet, and the hot air blown out by the second exhaust port blows off the glue on the outside of the glue outlet, and at the same time, the lower end of the glue outlet is heated by the blown hot air to prevent the glue remaining inside and outside the lower end of the glue outlet from solidifying, resulting in the problem of uneven glue liquid flowing out of the glue outlet later.

[0018] The gluing device for LCD screen production obtained by the present invention through the above design can scrape off the glue remaining at the lower end of the glue outlet and the glue attached to the front side of the baffle through a scraper, thereby avoiding the glue remaining at the glue outlet and the baffle to affect the subsequent gluing work of the LCD screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] In the attached picture: Figure 1 It is a schematic diagram of the three-dimensional structure of the glue coating device used for LCD liquid crystal screen production of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of a glue feeder, a glue outlet, a power assembly, a connecting frame, a horizontal plate, a cleaning assembly, a cleaning roller, a blocking assembly, an exhaust hood and a glue brushing assembly of a glue coating device for LCD liquid crystal screen production of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the cleaning roller, the second electric push rod, the storage box, the support plate, the spring, the fixing bar and the vertical rod of the gluing device for LCD screen production of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of a glue feeder, a glue outlet, a horizontal plate, a blocking component, an exhaust hood and a baffle of a glue coating device for LCD liquid crystal screen production of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of a glue outlet, an exhaust hood, a baffle and a scraping component of a glue coating device for LCD liquid crystal screen production of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the base frame, the placement plate and the self-cleaning component of the gluing device for LCD liquid crystal screen production of the present invention; Figure 7 For the present invention Figure 6 Magnified view of area A in .

[0021] Description of reference numerals: 1-base frame, 2-horizontal dual-axis motion platform, 3-lifting motion platform, 4-glue feeder, 5-glue outlet, 6-connecting frame, 7-horizontal plate, 8-cleaning roller, 9-exhaust hood, 10-placing plate, 101-fixed ring, 102-fixed plate, 103-servo motor, 104-spur gear, 105-gear ring, 201- round shaft, 202- electric push rod 1, 203- electric push rod 2, 204- storage box, 205- support plate, 206- spring, 207- fixing bar, 208- vertical rod, 301-electric push rod three, 302-conical frame, 303-connecting rod, 304-sealing plate, 401-electric push rod 4, 402-fixed block, 403-glue coating roller, 501- baffle, 502- mounting block, 503- micro motor 1, 504- fixing seat, 505- connecting shaft, 506- scraper, 507- micro motor 2, 601- guide plate, 602- bracket, 603- transmission roller, 604- micro motor three, 605- scraper, 1001-placing slot, 1002-rectangular slot, 1003-guide slot, 9001-air inlet pipe, 9002-exhaust port one, 9003-exhaust port two, 20401-liquid inlet pipe, 50101-strip slot. DETAILED DESCRIPTION

[0022] Hereinafter, various embodiments of the present invention will be described with reference to the accompanying drawings. In addition, in the following figures, in order to make each layer and each component a recognizable size, the scale of each layer and each component is appropriately changed for schematic illustration. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention. Example 1

[0023] A glue coating device for LCD screen production, such as Figure 1-Figure 4 As shown, it includes a base frame 1, a horizontal biaxial motion platform 2, a lifting motion platform 3, a glue feeder 4, a glue outlet 5 and a placement plate 10; the base frame 1 is provided with a horizontal biaxial motion platform 2; the moving part of the horizontal biaxial motion platform 2 is fixedly connected to the lifting motion platform 3; the moving part of the lifting motion platform 3 is fixedly connected to the glue feeder 4; the lower end of the glue feeder 4 is provided with a glue outlet 5; the base frame 1 is fixedly connected to the placement plate 10; the placement plate 10 is provided with a placement groove 1001; It also includes a power component, a connecting frame 6, a horizontal plate 7, a cleaning component, a cleaning roller 8, a blocking component, an exhaust hood 9 and a glue brushing component; the glue feeder 4 is connected to a power component; the connecting frame 6 is connected to the power component; the connecting frame 6 is fixedly connected to a horizontal plate 7, and the horizontal plate 7 is rotatably connected to the glue feeder 4; the left part of the horizontal plate 7 is connected to a cleaning component; the cleaning component is connected to a cleaning roller 8; the glue outlet 5 is rotatably connected to an exhaust hood 9, and the exhaust hood 9 is provided with an air inlet pipe 9001; the exhaust hood 9 is provided with an exhaust port 9002 on the side facing the cleaning roller 8; the lower part of the horizontal plate 7 is connected to a blocking component; the exhaust hood 9 is connected to the blocking component, and the blocking component is used to block the exhaust port 9002; the right part of the horizontal plate 7 is connected to a glue brushing component; the power component is used to drive the cleaning roller 8 and the exhaust hood 9 to rotate, so as to adjust the position of the cleaning roller 8 and the exhaust hood 9 toward the liquid crystal screen for gluing.

[0024] The power assembly includes a fixing ring 101, a fixing plate 102, a servo motor 103, a spur gear 104 and a gear ring 105; the fixing ring 101 is fixedly connected to the glue feeder 4; the fixing plate 102 is fixedly connected to the outer ring surface of the fixing ring 101; the servo motor 103 is bolted to the fixing plate 102; the output shaft of the servo motor 103 is fixedly connected to the spur gear 104; the outer ring surface of the fixing ring 101 is rotatably connected to the connecting frame 6; the gear ring 105 is fixedly connected to the outer side of the connecting frame 6, and the gear ring 105 is meshed with the spur gear 104.

[0025] The cleaning assembly includes a circular shaft 201, an electric push rod 1 202, an electric push rod 203, a storage box 204, a support plate 205, a spring 206, a fixing bar 207 and a vertical rod 208; the left part of the horizontal plate 7 is rotatably connected to the circular shaft 201; two electric push rods 1 202 are fixedly connected to the circular shaft 201; two electric push rods 203 are hingedly connected to the upper surface of the horizontal plate 7; the telescopic parts of the two electric push rods 203 are hingedly connected to the circular shaft 201; the telescopic parts of the two electric push rods 203 are fixedly connected to the storage box 204; the storage box 204 is provided with a liquid inlet pipe 20401; the storage The front and rear parts of the box 204 are each slidably connected to a support plate 205; the lower parts of the two support plates 205 are commonly rotatably connected to the cleaning roller 8; a spring 206 is fixedly connected between each support plate 205 and the storage box 204; two fixing bars 207 are fixedly connected to the upper parts of the two support plates 205; each fixing bar 207 is fixedly connected to a number of equidistantly distributed vertical rods 208, and all the vertical rods 208 are plugged into the storage box 204, and the drainage holes on the lower side of the storage box 204 are blocked by the vertical rods 208; a movable space is reserved between the storage box 204 and the outer surface of the cleaning roller 8.

[0026] The blocking assembly includes an electric push rod three 301, a conical frame 302, a connecting rod 303 and a sealing plate 304; two electric push rods three 301 are fixedly connected to the lower surface of the horizontal plate 7; the telescopic parts of the two electric push rods three 301 are commonly fixedly connected to the conical frame 302; two connecting rods 303 are fixedly connected to the lower part of the conical frame 302, and the two connecting rods 303 pass through the exhaust hood 9; a sealing plate 304 is commonly fixedly connected to the two connecting rods 303, and the sealing plate 304 is in contact with the inner wall of the exhaust hood 9; an exhaust port two 9003 is provided at the lower part of the exhaust hood 9, and the sealing plate 304 is used to open and block the exhaust port one 9002 or the exhaust port two 9003.

[0027] The glue brushing assembly includes an electric push rod 401, a fixed block 402 and a glue coating roller 403; the right part of the horizontal plate 7 is fixedly connected to two electric push rods 401; the telescopic parts of the two electric push rods 401 are commonly fixedly connected to the fixed block 402; the glue coating roller 403 is rotatably connected to the fixed block 402.

[0028] The baffle plate 501 is also included; the baffle plate 501 is fixedly connected to the lower surface of the horizontal plate 7 , and the baffle plate 501 is located behind the glue outlet 5 .

[0029] Furthermore, in order to prevent the baffle 501 from scratching the surface of the LCD screen when it moves, the bottom surface of the baffle 501 is set to be made of flexible rubber material.

[0030] A rectangular groove 1002 is formed on the placement plate 10 , and the rectangular groove 1002 is located outside the placement groove 1001 .

[0031] The working steps of this embodiment are: The following rotations are from front to back, from top to bottom, and from right to left. All components of the present invention that require electric drive are connected to an external power supply, the glue feeder 4 is connected to an external glue inlet pipe, the air inlet pipe 9001 is connected to an external hot air blower, and the storage box 204 is added with an appropriate amount of cleaning liquid (alcohol) through the liquid inlet pipe 20401. When in use, the operator places the LCD screen in the placement groove 1001 of the placement plate 10, and the back of the LCD screen faces upward. It should be noted that the parts used for gluing work in the present invention are initially located at the right rear of the placement plate 10, such as the glue feeder 4, the glue outlet 5 and the cleaning roller 8, etc., in order to prevent people from placing the LCD screen in the placement groove 1001 manually; when the LCD screen is placed, if it is necessary to glue the back side of the LCD screen, the output shaft of the servo motor 103 is controlled to drive the spur gear 104 to rotate counterclockwise, and the spur gear 104 drives the gear The ring 105, the connecting frame 6, the horizontal plate 7, the cleaning assembly, the cleaning roller 8, the blocking assembly, the exhaust hood 9 and the glue brushing assembly rotate clockwise together, and the cleaning roller 8 and the exhaust hood 9 are rotated from the left side of the glue outlet 5 to the rear of the glue outlet 5, and then the output shaft of the servo motor 103 is controlled to stop rotating, and then the telescopic parts of the two electric push rods 202 are controlled to contract, and the circular shaft 201 is driven to rotate on the horizontal plate 7. When the circular shaft 201 rotates, the electric push rod 203, the storage box 204, the support plate 205, the spring 206, the fixing bar 207, the vertical rod 208 and the cleaning roller 8 are driven to rotate together, and the two electric push rods 203 are changed from a vertical state to an inclined state, so that the cleaning roller 8 is away from the glue outlet 5, and sufficient space is reserved for the subsequent drying of the residual cleaning liquid on the LCD screen; Then, the telescopic part of the electric push rod 203 is controlled to be pushed out, driving the storage box 204, the support plate 205, the spring 206, the fixing bar 207, the vertical rod 208 and the cleaning roller 8 to move together, so that the lowermost side of the cleaning roller 8 is lower than the glue outlet 5 (the interval between the lowermost side of the cleaning roller 8 and the lowermost side of the glue outlet 5 is about 1 cm), and then the moving part of the horizontal dual-axis motion platform 2 is controlled to drive the lifting motion platform 3, the glue feeder 4, the glue outlet 5, the power component, the connecting frame 6, the horizontal plate 7, the cleaning component, the cleaning roller 8, the blocking component, the exhaust hood 9 and the glue brushing component to move together, and move the cleaning roller 8 to the left front of the LCD screen. At this time, the cleaning roller 8 is located at the intersection of the front edge and the left edge of the LCD screen. Directly above, the moving part of the lifting platform 3 is then controlled to drive the glue feeder 4, the glue outlet 5, the power assembly, the connecting frame 6, the horizontal plate 7, the cleaning assembly, the cleaning roller 8, the blocking assembly and the exhaust cover 9 to move downward together, so that the cleaning roller 8 contacts the upper surface of the LCD screen. At this time, the cleaning roller 8, the support plate 205, the fixing bar 207 and the vertical rod 208 remain stationary, and the storage box 204 continues to move downward, forcing all the springs 206 to compress until the outer surface of the cleaning roller 8 fits the lower side of the storage box 204, and several vertical rods 208 are separated from the drainage holes on the lower side of the storage box 204, so that the cleaning liquid in the storage box 204 flows from the drainage holes to the cleaning roller 8, and soaks the cleaning roller 8; When the cleaning roller 8 is soaked, the moving part of the horizontal dual-axis motion platform 2 is controlled to drive the connected parts to move according to a pre-set route (with the right angle in front of the left side of the LCD screen as the starting point and the end point, and moving along the four sides of the LCD screen to form a rectangular frame), and the sides of the LCD screen are cleaned by the cleaning roller 8 to wipe off the dust, fingerprints or other stains on the sides of the LCD screen. However, after the LCD screen is cleaned, although the cleaning liquid (alcohol) will evaporate, a small amount of cleaning liquid will still remain on the LCD screen, affecting the gluing efficiency. At this time, the external hot air blower is controlled to start, and hot air is delivered to the exhaust hood 9 through the air inlet pipe 9001. The hot air is discharged from the exhaust port 9002 of the exhaust hood 9 to dry the cleaning liquid remaining on the LCD screen. It should be noted that there is enough space (about 1 cm) between the cleaning roller 8 and the exhaust port 9002. When the cleaning roller 8 moves along the side of the LCD screen for cleaning, the baffle 501 and the glue outlet 5 will also come to the initial point of the LCD screen in turn. When the baffle 501 comes to the initial point of the LCD screen, it will continue to contact with the upper surface of the LCD screen, and when the glue outlet 5 comes to the initial point of the LCD screen, the glue feeder 4 is controlled to let the glue outlet 5 spray glue. As the moving part of the horizontal dual-axis motion platform 2 drives the connected parts and the glue outlet 5 to continue to press Move along the set route, and the glue sprayed from the glue outlet 5 will also extend according to the moving route. Whenever the glue outlet 5 has finished applying glue on one side of the LCD screen, the moving part of the lifting motion platform 3 is controlled to drive the connected parts to move upward, first away from the LCD screen, and then the output shaft of the servo motor 103 is controlled to continue to rotate counterclockwise to adjust the directions of the cleaning roller 8 and the exhaust port 9002 and other parts. Then, the moving part of the horizontal dual-axis motion platform 2 is controlled to drive the connected parts to move, and the cleaning roller 8 is moved to the top of the head end of the next side of the LCD screen, and then the moving part of the lifting motion platform 3 is controlled to drive the connected parts to move downward, so that the cleaning roller 8 It fits with the LCD screen, and then controls the moving part of the horizontal dual-axis motion platform 2 to run according to the set path, and continues to clean and apply glue to the sides of the LCD screen, and repeats this process until the four sides of the LCD screen are all coated with glue. In this way, the dust, fingerprints or other stains on the sides of the LCD screen are wiped clean by the cleaning roller 8, and the hot air discharged from the exhaust port 9002 is used to dry the cleaning liquid remaining on the LCD screen. At the same time, the glue outlet 5 follows the rear of the cleaning roller 8 to apply glue to the sides of the LCD screen. This eliminates the process of cleaning the LCD screen separately, optimizes the process of gluing the LCD screen, and improves the gluing efficiency of the LCD screen.

[0032] In the process of glue coating the LCD screen at the glue outlet 5, the glue coating roller 403 and the cleaning roller 8 are always in a state relative to the glue outlet 5. When the glue coating roller 403 is about to reach the LCD screen, the telescopic parts of the two electric push rods 401 are controlled to be pushed out, driving the fixed block 402 and the glue coating roller 403 to move downward together, so that the distance between the lower side of the glue coating roller 403 and the glue coating surface of the LCD screen is about 1 cm. As the glue outlet 5 moves, the glue coating work is carried out, and the glue on the LCD screen is squeezed evenly by the glue coating roller 403, which is conducive to the subsequent close connection between the LCD screen and the shell. However, in the process of the glue coating roller 403 squeezing the glue, the glue will not only adhere to the glue coating roller 403, but also overflow to both sides of the glue coating roller 403. The glue flowing along the glue coating roller 403 to the inner side of the LCD screen will be intercepted by the baffle 501 to prevent a large amount of glue from flowing to the inner side of the LCD screen and covering the electronic components of the LCD screen, thereby affecting the normal use and heat dissipation of the electronic components. The glue flowing along the glue coating roller 403 to the outer side of the LCD screen will enter the rectangular groove 1002 of the placement plate 10 for temporary storage.

[0033] It should be noted that when the output shaft of the servo motor 103 drives the connected parts to rotate, the glue roller 403 will also rotate together, and continue to press the glue applied to the other sides of the LCD screen. When the glue outlet 5 is finished coating the LCD screen, and the glue outlet 5 is moved to the top of the rectangular groove 1002 of the placement plate 10 to detach from the LCD screen, the glue has a strong viscosity, and the glue remaining at the lower end of the glue outlet 5 and the glue on the LCD screen will stick to each other, resulting in a wire drawing phenomenon. After the glue is stretched to the limit and breaks, because the glue is stretched too long, it cannot completely shrink under the action of viscosity and will fall onto the placement plate 10 and other parts, causing the placement plate 10 and other parts to be contaminated. Therefore, after the glue is coated, the glue outlet 5 is moved to the top of the rectangular groove 1002 of the placement plate 10 to detach from the LCD screen. During the process of leaving the LCD screen, the telescopic parts of the two electric push rods 301 are controlled to contract, driving the conical frame 302, the connecting rod 303 and the sealing plate 304 to move upward together, and the sealing plate 304 opens the exhaust port 2 9003 of the exhaust hood 9, and at the same time blocks the exhaust port 1 9002 of the exhaust hood 9, so that the hot air of the exhaust hood 9 is discharged from the exhaust port 2 9003, and the continuous hot air is used to melt the drawing glue between the glue outlet 5 and the LCD screen, so that the drawing glue automatically retracts onto the glue outlet 5 and the LCD screen (pulling the glue by melting with hot air is a prior art, and the principle will not be elaborated in detail).

[0034] When the glue outlet 5 is moved to the upper part of the rectangular groove 1002 of the placement plate 10 and the glue coating work on the LCD screen is no longer carried out, part of the glue is still attached to the lower end of the glue outlet 5. At this time, the hot air continuously discharged through the exhaust port 9003 blows the glue on the outer side of the glue outlet 5 into the rectangular groove 1002 below to prevent the glue from solidifying on the outer side of the glue outlet 5. As a result, when the glue outlet 5 is subsequently coated with glue, the glue flowing out of the glue outlet 5 will be affected by the solidified glue on the outer side of the glue outlet 5, that is, the solidified glue on the outer side of the glue outlet 5 will affect the glue flowing out of the glue outlet 5. The glue flowing out of the glue outlet 5 is blocked, resulting in uneven glue flowing out of the glue outlet 5. At the same time, when the hot air flows in the exhaust hood 9 and the exhaust port 2 9003, the hot air also heats the lower end of the glue outlet 5, so that the glue remaining on the inner side of the lower end of the glue outlet 5 can flow downward to the outside of the glue outlet 5, and drip downward or be blown into the rectangular groove 1002 by the hot air, avoiding the solidification of the glue remaining on the inner side of the lower end of the glue outlet 5. The glue cannot flow downward to the outside of the glue outlet 5, resulting in uneven glue flowing out of the glue outlet 5 later.

[0035] It should be noted that after the glue coating of the LCD screen is completed, the operator takes the LCD screen out of the placement groove 1001 of the placement plate 10 and transfers it to the subsequent assembly process for assembly. Example 2

[0036] On the basis of Example 1, Figure 4-Figure 7 As shown, a scraping assembly is also included, and the baffle 501 is connected to the scraping assembly; the scraping assembly includes a mounting block 502, a micro motor 1 503, a fixing seat 504, a connecting shaft 505, a scraping strip 506 and a micro motor 2 507; the mounting block 502 is fixedly connected to the rear side of the baffle 501; the micro motor 1 503 is bolted to the mounting block 502; the output shaft of the micro motor 1 503 is fixedly connected to the fixing seat 504; a strip groove 50101 is opened on the baffle 501; the fixing seat 504 is rotatably connected to the connecting shaft 505, and the connecting shaft 505 is located in the strip groove 50101; the connecting shaft 505 is fixedly connected to the scraping strip 506, and the scraping strip 506 is located on the front side of the baffle 501; the micro motor 2 507 is bolted to the rear side of the fixing seat 504, and the output shaft of the micro motor 2 507 is fixedly connected to the connecting shaft 505.

[0037] It also includes a self-cleaning component, which is connected to the placement plate 10; the self-cleaning component includes a guide plate 601, a bracket 602, a drive roller 603, a micro motor three 604 and a scraper 605; a guide groove 1003 is provided on the placement plate 10, and the guide groove 1003 is connected to the rectangular groove 1002; the guide plate 601 is fixedly connected to the outer side of the placement plate 10, and the guide plate 601 is connected to the guide groove 1003; the bracket 602 is fixedly connected in the rectangular groove 1002; the drive roller 603 is rotatably connected in the bracket 602; the micro motor three 604 is bolted to the outer side of the bracket 602; the output shaft of the micro motor three 604 is fixedly connected to the drive roller 603; the scraper 605 is fixedly connected to the lower part of the bracket 602; and a drainage groove is provided on the scraper 605.

[0038] The rectangular groove 1002 is tilted as a whole, and the left front portion of the rectangular groove 1002 is at the lowest point.

[0039] The working principle of this embodiment is: Although the airflow discharged through the second air outlet 9003 can blow off the glue collected on the outside of the glue outlet 5, the airflow discharged from the second air outlet 9003 cannot guarantee the cleaning effect of the glue liquid on the outside of the lower end of the glue outlet 5. Therefore, after the second air outlet 9003 works for a period of time (about 1-2 minutes), the output shaft of the micro motor 1 503 is controlled to rotate clockwise, driving the fixed seat 504, the connecting shaft 505, the scraper 506 and the second micro motor 507 to rotate ninety degrees together, so that the scraper 506 moves along the lower surface of the glue outlet 5 to scrape off the remaining glue at the lower end of the glue outlet 5 (the glue exposed on the outside of the glue outlet 5), so as to prevent the glue remaining at the lower end of the glue outlet 5 from solidifying quickly in the air and affecting the glue output of the glue outlet 5; After the scraper 506 scrapes off the glue at the lower end of the glue outlet 5, the output shaft of the micro motor 503 is controlled to rotate counterclockwise, driving the connected components to reset and return to the front side of the baffle 501. At this time, because the front side of the baffle 501 intercepts the glue during the glue coating process of the glue outlet 5, the front side of the baffle 501 will be attached with glue. If the glue attached to the front side of the baffle 501 is not removed, the glue will solidify on the front side of the baffle 501. As the working time increases, the glue attached to the baffle 501 will increase, and the baffle 501 will become thicker, resulting in subsequent baffles. When 501 intercepts the glue, the solidified glue will block the glue sprayed from the glue outlet 5, resulting in the glue being unable to be sprayed to the desired position. It will also stick to the glue and affect the spraying effect of the glue. Therefore, the output shaft of the micro motor 2 507 is controlled to rotate clockwise, driving the connecting shaft 505 and the scraper 506 to rotate 270 degrees together, and the scraper 506 is rotated downward to scrape off the glue attached to the front side of the baffle 501, and let the glue flow away along the downward scraper 506, ensuring that the front side of the baffle 501 is clean and will not affect the subsequent interception of glue by the baffle 501.

[0040] It should be noted that when the scraper 506 scrapes the glue on the lower surface of the glue outlet 5 and the front side of the baffle 501, the glue outlet 5, the baffle 501, the scraper 506 and other parts are all located above the rectangular groove 1002 and the guide groove 1003 on the left front part of the placement plate 10, and the space formed by the rectangular groove 1002 and the guide groove 1003 on the left front part of the placement plate 10 is larger than the movable range of the scraper 506.

[0041] When the glue roller 403 finishes squeezing the glue, glue will remain on the glue roller 403, and there is a period of time before the glue roller 403 works again. During this period, the residual glue solidifies on the glue roller 403, causing the diameter of the glue roller 403 to change, and then the subsequent squeezed glue cannot be kept uniform. Therefore, when the glue roller 403 squeezes the glue of the LCD screen uniformly, it is necessary to control the moving part of the horizontal dual-axis motion platform 2 to drive the connected parts to move, and move the glue roller 403 to the position connected to the transmission roller 603 and the scraper. 605 contacts, and then controls the output shaft of micro motor three 604 to rotate counterclockwise, and drives the glue coating roller 403 to rotate through the transmission roller 603, and the scraper 605 contacts the outer surface of the glue coating roller 403, and the glue attached to the glue coating roller 403 is scraped off by the scraper 605, and the scraped glue flows into the guide groove 1003, so as to avoid glue residue on the glue coating roller 403 and affect the subsequent working effect of the glue coating roller 403. It should be noted that part of the glue flowing onto the scraper 605 will flow into the guide groove 1003 from the drainage groove of the scraper 605.

[0042] It should be noted that the glue entering the rectangular groove 1002 will flow to the left front part of the rectangular groove 1002, and then flow into the glue collection container through the guide groove 1003 and the guide plate 601. If there is a lot of solidified glue remaining in the rectangular groove 1002 and the guide groove 1003, the operator can manually clean the glue in the rectangular groove 1002 and the guide groove 1003.

[0043] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A glue coating device for LCD screen production, comprising a base frame (1); a horizontal biaxial motion platform (2) is arranged on the base frame (1); a lifting motion platform (3) is fixedly connected to the moving part of the horizontal biaxial motion platform (2); a glue feeder (4) is fixedly connected to the moving part of the lifting motion platform (3); a glue outlet (5) is installed at the lower end of the glue feeder (4); a placement plate (10) is fixedly connected to the base frame (1); a placement groove (1001) is opened on the placement plate (10); the characteristics are as follows: The device also includes a power assembly; the glue feeder (4) is connected to the power assembly; the power assembly is connected to a connecting frame (6); a horizontal plate (7) is fixedly connected to the connecting frame (6), and the horizontal plate (7) is rotatably connected to the glue feeder (4); a cleaning assembly is connected to the left side of the horizontal plate (7); a cleaning roller (8) for cleaning the LCD screen is connected to the cleaning assembly, and the cleaning assembly is used to wet the cleaning roller (8) with a cleaning liquid; a roller for drying the cleaning liquid is rotatably connected to the glue outlet (5). An exhaust hood (9) is provided, and an air inlet pipe (9001) is provided on the exhaust hood (9); an exhaust port 1 (9002) is provided on a side of the exhaust hood (9) facing the cleaning roller (8); a blocking component is connected to the lower part of the horizontal plate (7); the exhaust hood (9) is connected to the blocking component, and the blocking component is used to block the exhaust port 1 (9002); a glue brushing component for evenly applying glue is connected to the right part of the horizontal plate (7); and a power component is used to drive the cleaning roller (8) and the exhaust hood (9) to rotate.

2. The gluing device for LCD screen production according to claim 1, characterized in that: The cleaning assembly comprises a circular shaft (201); the left portion of the horizontal plate (7) is rotatably connected to the circular shaft (201); two electric push rods (202) are fixedly connected to the circular shaft (201); the upper surface of the horizontal plate (7) is movably connected to two electric push rods (203); the telescopic parts of the two electric push rods (203) are movably connected to the circular shaft (201); the telescopic parts of the two electric push rods (203) are fixedly connected to a storage box (204); the storage box (204) is provided with a liquid inlet pipe (20401); the front and rear portions of the storage box (204) are respectively A support plate (205) is slidably connected; the lower parts of the two support plates (205) are rotatably connected to the cleaning roller (8); a spring (206) is fixedly connected between each support plate (205) and the storage box (204); two fixing bars (207) are fixedly connected to the upper parts of the two support plates (205); a plurality of equidistantly distributed vertical bars (208) are fixedly connected to each fixing bar (207), and all the vertical bars (208) are plugged into the storage box (204); and a movable space is reserved between the storage box (204) and the outer surface of the cleaning roller (8).

3. The gluing device for LCD screen production according to claim 1, characterized in that: The blocking component comprises an electric push rod three (301); two electric push rods three (301) are fixedly connected to the lower surface of the horizontal plate (7); the telescopic parts of the two electric push rods three (301) are commonly fixedly connected to a conical frame (302); two connecting rods (303) are fixedly connected to the lower part of the conical frame (302), and the two connecting rods (303) penetrate the exhaust hood (9); a sealing plate (304) is commonly fixedly connected to the two connecting rods (303), and the sealing plate (304) is in contact with the inner wall of the exhaust hood (9); and an exhaust port two (9003) is arranged at the lower part of the exhaust hood (9).

4. The gluing device for LCD screen production according to claim 1, characterized in that: The glue-brushing assembly comprises an electric push rod four (401); two electric push rods four (401) are fixedly connected to the right part of the horizontal plate (7); the telescopic parts of the two electric push rods four (401) are commonly fixedly connected to a fixed block (402); and a glue-brushing roller (403) is rotatably connected to the fixed block (402).

5. The gluing device for LCD screen production according to claim 4, characterized in that: It also includes a baffle (501); the baffle (501) is fixedly connected to the lower surface of the horizontal plate (7), and the baffle (501) is located behind the glue outlet (5).

6. The gluing device for LCD screen production according to claim 5, characterized in that: The bottom surface of the baffle (501) is made of a flexible rubber material.

7. The gluing device for LCD screen production according to claim 1, characterized in that: A rectangular groove (1002) is provided on the placement plate (10), and the rectangular groove (1002) is located outside the placement groove (1001).

8. The gluing device for LCD screen production according to claim 6, characterized in that: The invention also comprises a scraping assembly, wherein the baffle (501) is connected to a scraping assembly for scraping residual glue; the scraping assembly comprises a mounting block (502); the mounting block (502) is fixedly connected to the rear side of the baffle (501); a micro motor 1 (503) is fixedly connected to the mounting block (502); the output shaft of the micro motor 1 (503) is fixedly connected to a fixing seat (504); a strip groove (50101) is provided on the baffle (501); a connecting shaft (505) is rotatably connected to the fixing seat (504), and the connecting shaft (505) is located in the strip groove (50101); a scraping strip (506) is fixedly connected to the connecting shaft (505), and the scraping strip (506) is located on the front side of the baffle (501); a micro motor 2 (507) is fixedly connected to the rear side of the fixing seat (504), and the output shaft of the micro motor 2 (507) is fixedly connected to the connecting shaft (505).

9. The gluing device for LCD screen production according to claim 7, characterized in that: The invention also comprises a self-cleaning component, wherein the placement plate (10) is connected to a self-cleaning component for cleaning glue on the glue coating roller (403); the self-cleaning component comprises a guide plate (601); a guide groove (1003) is provided on the placement plate (10), and the guide groove (1003) is connected to the rectangular groove (1002); the guide plate (601) is fixedly connected to the outer side of the placement plate (10), and the guide plate (601) is connected to the guide groove (1003); a bracket (602) is fixedly connected in the rectangular groove (1002); a driving roller (603) is rotatably connected in the bracket (602); a micro motor three (604) is fixedly connected to the outer side of the bracket (602); the output shaft of the micro motor three (604) is fixedly connected to the driving roller (603); a scraper (605) is fixedly connected to the lower part of the bracket (602); and a liquid drainage groove is provided on the scraper (605).

10. The gluing device for LCD screen production according to claim 9, characterized in that: The rectangular groove (1002) is inclined as a whole, and the left front part of the rectangular groove (1002) is at the lowest point.

Images