Glue dispensing machine and glue dispensing method for touch screen production

Abstract

The present invention relates to a glue dispensing machine for touch screen production, comprising an equipment main body; the equipment main body comprises a carrying device, a loading device, a glue dispensing device, a glue suction device and a discharge device; the carrying device comprises a turntable, a first driving mechanism for driving the turntable to rotate and a carrying box arranged on the turntable, and a plurality of carrying boxes are evenly arranged around the rotating shaft of the turntable; three loading devices are evenly arranged around the outside of the turntable; a discharge device is arranged between two adjacent loading devices; a glue suction device is arranged between the discharge device and the loading device; and two glue dispensing devices are respectively arranged between two adjacent loading devices. Among them, the first driving mechanism comprises a first motor; the empty carrying box passes through the first loading device, the glue dispensing device, the second loading device, the second glue dispensing device, the third loading device, the glue suction device and the discharge device in sequence; compared with the existing technology, the glue dispensing machine can realize automated production, reduce dependence on manual labor, and effectively improve production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen production, and in particular to a glue dispensing machine and a glue dispensing method for touch screen production. Background Art

[0002] During the touch screen assembly process (bonding the tempered glass, touch layer, and display layer), assembly lines are used. Existing assembly line operations require a large amount of manpower, and workers are easily fatigued under high-intensity assembly line operations, resulting in a decline in product quality. At the same time, with the continuous increase in labor costs, employee wages continue to rise, and production costs continue to rise. Summary of the Invention

[0003] (1) Technical issues to be solved

[0004] In order to solve the above problems of the prior art, the present invention provides a dispensing machine for touch screen production to replace manual assembly line operations, reduce the dependence of production on labor, realize automated production, and reduce the production cost of touch screens.

[0005] (2) Technical solution

[0006] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0007] A glue dispensing machine for touch screen production includes an equipment main body; the equipment main body includes a carrying device, a loading device, a glue dispensing device, a glue suction device and a unloading device; the carrying device includes a turntable, a first driving mechanism for driving the turntable to rotate and a carrying box arranged on the turntable, and a plurality of the carrying boxes are evenly distributed around the rotating shaft of the turntable; three loading devices are evenly distributed around the outside of the turntable; one unloading device is arranged between two adjacent loading devices; one glue suction device is arranged between the unloading device and the loading device; two glue dispensing devices are respectively arranged between two adjacent loading devices.

[0008] The loading device includes a first conveying mechanism and a first adsorption mechanism connected to the first conveying mechanism; the first conveying mechanism includes a first end close to the turntable and a second end away from the turntable; the first conveying mechanism conveys from the second end toward the first end; the first adsorption mechanism is connected above the first end.

[0009] The first adsorption mechanism includes a first negative pressure adsorption head that can be extended into the carrying box, a first slider for carrying the first negative pressure adsorption head, a second driving mechanism for driving the first slider to move along the conveying direction of the first conveying mechanism, and a third driving mechanism for driving the first negative pressure adsorption head to move up and down.

[0010] The first conveying mechanism includes a first conveyor belt and a first frame supporting the first conveyor belt; the first slider is slidably connected to the first frame; the second driving mechanism includes a first driving motor fixedly connected to the first frame and a first threaded rod fixedly connected to the output shaft of the first driving motor; the first threaded rod and the first slider are connected together by threads.

[0011] The first slider includes a first limiting slide groove extending vertically; the first negative pressure adsorption head includes a first limiting protrusion located in the first limiting slide groove and a first negative pressure suction cup located outside the first limiting slide groove; the third driving mechanism includes a second threaded rod located in the first limiting slide groove and a second driving motor that drives the second threaded rod to rotate.

[0012] The first negative pressure adsorption head also includes a first connecting portion connected between the first negative pressure suction cup and the first limiting protrusion.

[0013] The glue dispensing device includes a second frame, a glue injection assembly arranged on the second frame, and a fourth drive mechanism for driving the glue injection assembly to rise and fall; the glue injection assembly includes a first lifting rod, a glue injection head connected to the lower end of the first lifting rod, and a glue injection tube connected to the glue injection head; the first lifting rod is slidably connected to the second frame; the second frame includes a sliding groove that cooperates with the first lifting rod; the fourth drive mechanism includes a third threaded rod extending into the sliding groove and a third drive motor that drives the third threaded rod to rotate; the third threaded rod is threadedly connected to the first lifting rod; the glue injection head can be extended into the carrier box.

[0014] The glue suction device includes a glue suction component, a third frame carrying the glue suction component, and a fifth driving mechanism driving the glue suction component to move up and down;

[0015] The glue suction assembly includes a second lifting rod, a glue suction head connected to the lower end of the second lifting rod, and a glue suction tube connected to the glue suction head; the second lifting rod is slidably connected to the third frame; the fifth driving mechanism includes a fourth threaded rod rotatably connected to the third frame and a fourth driving motor driving the fourth threaded rod to rotate; the fourth threaded rod is threadedly connected to the third lifting rod;

[0016] The carrying box includes a box wall, a carrying groove in the box wall, and a scraper seat arranged in the carrying groove; the glue suction head includes an inserting protrusion that can extend into the carrying groove and squeeze the scraper seat; the scraper seat includes a placement groove, a carrying plate that moves up and down along the placement groove, and a first support spring arranged in the placement groove and used to support the carrying plate;

[0017] The scraper seat further includes a scraping wall surrounding the placement groove; the scraping wall has an inclined surface; the inclined surface gradually tilts outward from top to bottom;

[0018] A collecting groove is formed between the scraping wall and the box wall; the carrying box further includes a glue suction hole provided on the box wall and communicating with the collecting groove, and a first hole blocking mechanism provided outside the box wall; the first hole blocking mechanism includes a guide rod, a lifting plug that moves up and down along the guide rod, and a second support spring sleeved on the outside of the guide rod and used to support the lifting plug;

[0019] The glue suction head also includes an outer wall arranged around the outside of the protrusion; the outer wall has a glue discharge hole corresponding to the glue suction hole; the glue suction tube is connected to the glue discharge hole; the outer wall can squeeze the lifting plug;

[0020] The glue suction head further comprises an inner wall extending between the protrusion and the outer wall and a middle groove between the inner wall and the outer wall; the box wall can extend into the middle groove;

[0021] The carrier box further includes an inner wall connected to the box wall; the inner wall is located above the collecting slot; the box wall and the inner wall are connected to form a hollow slot; the carrier box has a hot air inlet hole on the box wall and a hot air outlet hole on the inner wall; the hot air inlet hole and the hot air outlet hole are arranged correspondingly;

[0022] The carrier box further includes a second hole-blocking mechanism disposed in the hollow groove; the second hole-blocking mechanism includes a separating plug that moves up and down along the hollow groove, and a third support spring disposed in the hollow groove and supporting the separating plug; the inner wall can extend into the hollow groove; the glue suction head further includes an air hole disposed on the inner wall;

[0023] The outer wall is made of heat-insulating material; the scraping wall is made of heat-conducting material.

[0024] The unloading device includes a second conveying mechanism and a second adsorption mechanism connected to the second conveying mechanism; the second conveying mechanism includes a third end portion close to the turntable and a fourth end portion away from the turntable; the second conveying mechanism conveys from the third end portion to the fourth end portion; the second adsorption mechanism is connected above the third end portion;

[0025] The second adsorption mechanism includes a second negative pressure adsorption head that can be extended into the carrier box, a second slider for supporting the second negative pressure adsorption head, a sixth driving mechanism for driving the second slider to move along the conveying direction of the second conveying mechanism, and a seventh driving mechanism for driving the second negative pressure adsorption head to move up and down;

[0026] The second conveying mechanism includes a second conveyor belt and a fourth frame carrying the second conveyor belt; the second slider is slidably connected to the fourth frame; the sixth driving mechanism includes a fifth driving motor fixedly connected to the fourth frame and a fifth threaded rod fixedly connected to the output shaft of the fifth driving motor; the fifth threaded rod is threadedly connected to the second slider;

[0027] The second slider includes a second limiting slide groove extending vertically; the second negative pressure adsorption head includes a second limiting protrusion located in the second limiting slide groove and a second negative pressure suction cup located outside the second limiting slide groove; the seventh driving mechanism includes a sixth threaded rod located in the second limiting slide groove and a sixth driving motor that drives the sixth threaded rod to rotate; the second negative pressure adsorption head also includes a second connecting part connected between the second negative pressure suction cup and the second limiting protrusion.

[0028] A dispensing method using a dispensing machine for touch screen production includes the following steps:

[0029] X1. Installing tempered glass: The turntable rotates to drive the empty carrier box into one of its loading devices. The loading device absorbs the tempered glass and places the tempered glass on the carrier plate of the carrier box;

[0030] X2. First glue application: The turntable rotates to drive the carrier box into its glue dispensing device. The glue dispensing head of the glue dispensing device descends into the carrier groove and dispenses glue onto the upper surface of the tempered glass. After the glue dispensing is completed, the glue dispensing head rises and moves out of the carrier groove.

[0031] X3. Install the touch layer: The turntable drives the carrier box to rotate and enter the second loading device. The second loading device absorbs the touch layer into the loading slot. Place the touch screen on the tempered glass and press the touch screen downward to move the carrier plate downward. Scrape off any glue that overflows from the interlayer between the tempered glass and the touch layer.

[0032] X4. Second glue application: The turntable rotates to drive the carrier box into its second glue dispensing device. The glue injection head of the second glue dispensing device descends into the carrier groove and injects glue onto the upper surface of the touch layer. After the glue injection is completed, the glue injection head rises and moves out of the carrier groove.

[0033] X5. Glue suction and drying: The rotation of the turntable drives the carrying box into the glue suction device, and the glue suction head is pressed down, extending into the protrusion to press the touch screen assembly downward, so that the touch screen assembly moves relative to the placement groove, and the glue overflowing from the edge of the touch screen assembly is scraped off for the second time; at the same time, during the downward pressing process, the glue suction hole and the glue discharge hole are connected, and the hot air inlet hole, the air hole and the hot air outlet hole are connected, and hot air is injected into the carrying groove to discharge the glue in the collecting groove and dry the glue in the interlayer of the touch screen assembly.

[0034] (3) Beneficial effects

[0035] The beneficial effects of the present invention are as follows: in the actual implementation process, the three loading devices respectively transport the tempered glass, the touch layer and the display layer, so that the three enter the carrier box; the two glue dispensing devices dispense glue for the two interlayers formed between the tempered glass, the touch layer and the display layer; the glue suction device squeezes the three to scrape off the excess glue in the interlayer and sucks out the excess glue; after the glue solidifies, the unloading device sucks out the touch screen as a whole and transports it outward; the turntable of the carrying device drives the carrier box to pass through each processing device in sequence; specifically, the empty carrier box passes through the first loading device, the glue dispensing device, the second loading device, the second glue dispensing device, the third loading device, the glue suction device and the unloading device in sequence; compared with the existing technology, the glue dispensing machine can realize automated production, reduce dependence on manual labor, effectively improve production efficiency, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a dispensing machine for touch screen production according to an embodiment of the present invention;

[0037] Figure 2 A schematic structural diagram of a carrying device and a dispensing device according to an embodiment of the present invention;

[0038] Figure 3 This is an enlarged view of region A of an embodiment of the present invention;

[0039] Figure 4 It is a structural schematic diagram of a feeding device according to an embodiment of the present invention;

[0040] Figure 5 Schematic diagram of the structure of the second driving mechanism and the third driving mechanism of an embodiment of the present invention;

[0041] Figure 6 This is a schematic structural diagram of a glue suction device according to an embodiment of the present invention;

[0042] Figure 7 A cross-sectional view of the assembly of a glue suction head and a carrier box according to an embodiment of the present invention;

[0043] Figure 8 This is an enlarged view of region B of an embodiment of the present invention;

[0044] Figure 9 This is an enlarged view of region C of an embodiment of the present invention;

[0045] [Description of Reference Numerals]

[0046] Carrying device 1, loading device 2, glue dispensing device 3, glue suction device 4, unloading device 5, turntable 11, first driving mechanism 12, carrying box 13, first conveying mechanism 21, first adsorption mechanism 22, first end 211, second end 212, first negative pressure adsorption head 221, first slider 222, second driving mechanism 223, third driving mechanism 224, first conveyor belt 213, first frame 214, first driving motor 2231, first threaded rod 2232, first limiting slide 2221, first limiting protrusion 2211, first negative pressure suction cup 2212, second threaded rod 2241, second driving motor 2242, first connecting portion 2213, first extending protrusion 2214, second frame 31, glue injection assembly 32, fourth driving mechanism 33, first lifting rod 321, glue injection head 322, glue injection tube 323, sliding groove 311, Third threaded rod 331, third drive motor 332, glue suction assembly 41, third frame 42, fifth drive mechanism 43, second lifting rod 411, glue suction head 412, glue suction tube 413, fourth threaded rod 431, fourth drive motor 432, box wall 132, bearing groove 133, glue scraping seat 134, extending protrusion 4121, placement groove 1341, bearing plate 1342, first support spring 1343, scraping wall 134 4. Inclined surface 1345, collecting groove 1331, glue suction hole 1321, first hole blocking mechanism 1322, guide rod a1, lifting plug a2, second support spring a3, outer wall 4122, glue discharge hole 4123, inner wall 4124, inner wall 135, hollow groove 136, hot air inlet hole 137, hot air outlet hole 138, second hole blocking mechanism 139, separating plug b1, third support spring b2, air hole 4126. DETAILED DESCRIPTION

[0047] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0048] Please refer to Figure 1-9As shown, a glue dispensing machine for touch screen production of the present invention includes an equipment main body; the equipment main body includes a carrying device 1, a loading device 2, a glue dispensing device 3, a glue suction device 4 and a unloading device 5; the carrying device 1 includes a turntable 11, a first driving mechanism 12 for driving the turntable 11 to rotate and a carrying box 13 arranged on the turntable 11, and a plurality of carrying boxes 13 are evenly distributed around the rotating shaft of the turntable 11; three loading devices 2 are evenly distributed around the outside of the turntable 11; a unloading device 5 is arranged between two adjacent loading devices 2; a glue suction device 4 is arranged between the unloading device 5 and the loading device 2; and two glue dispensing devices 3 are respectively arranged between two adjacent loading devices 2. Among them, the first driving mechanism 12 includes a first motor; in the actual implementation process, the three loading devices 2 respectively transport the tempered glass, the touch layer and the display layer, so that the three enter the carrier box 13; the two dispensing devices 3 dispense glue for the two interlayers formed between the tempered glass, the touch layer and the display layer; the glue suction device 4 squeezes the three to scrape off the excess glue in the interlayer and sucks out the excess glue; after the glue solidifies, the unloading device 5 sucks out the touch screen as a whole and transports it outward; the turntable 11 of the carrying device 1 drives the carrying box 13 to pass through each processing device in turn; specifically, the empty carrying box 13 passes through its first loading device 2, its dispensing device 3, its second loading device 2, its second dispensing device 3, its third loading device 2, the glue suction device 4 and the unloading device 5 in turn; compared with the existing technology, the dispensing machine can realize automated production, reduce dependence on manual labor, and effectively improve production efficiency.

[0049] Optionally, the loading device 2 includes a first conveying mechanism 21 and a first suction mechanism 22 connected to the first conveying mechanism 21. The first conveying mechanism 21 includes a first end 211 proximal to the turntable 11 and a second end 212 distal to the turntable 11. The first conveying mechanism 21 conveys from the second end 212 toward the first end 211. The first suction mechanism 22 is connected above the first end 211. In actual implementation, the first conveying mechanism 21 separately conveys the tempered glass, touch layer, or display layer to the bottom of the first suction mechanism 22. The first suction mechanism 22 suctions the tempered glass, touch layer, or display layer and places it into the carrier box 13. The first suction mechanism 22 uses a visual sensor for positioning.

[0050] Optionally, the first suction mechanism 22 includes a first negative pressure suction head 221 that can extend into the carrier box 13, a first slider 222 for supporting the first negative pressure suction head, a second drive mechanism 223 that drives the first slider 222 along the conveying direction of the first conveying mechanism 21, and a third drive mechanism 224 that drives the first negative pressure suction head up and down. In actual implementation, the second drive mechanism 223 and the third mechanism enable the first negative pressure suction head to be efficiently moved and placed on the tempered glass, touch layer, or display layer. Simultaneously, the first suction head facilitates the suction and placement of the tempered glass, touch layer, or display layer without damaging the tempered glass, touch layer, or display layer.

[0051] Optionally, the first conveying mechanism 21 includes a first conveyor belt 213 and a first frame 21433 supporting the first conveyor belt 213; a first slider 222 is slidably connected to the first frame 21433; the second drive mechanism 223 includes a first drive motor 2231 fixedly connected to the first frame 21433 and a first threaded rod 2232 fixedly connected to the output shaft of the first drive motor 2231; the first threaded rod 2232 and the first slider 222 are threadedly connected together. In actual implementation, the cooperation between the first threaded rod and the first drive motor 2231 can more accurately control the movement distance of the first negative pressure suction head, facilitate accurate alignment of the tempered glass, touch layer, and display layer, and effectively prevent the tempered glass, touch layer, and display layer from shifting.

[0052] Optionally, the first slider 222 includes a first limiting groove 2221 extending vertically; the first negative pressure suction head 221 includes a first limiting protrusion 2211 located within the first limiting groove 2221 and a first negative pressure suction cup 2212 located outside the first limiting groove 2221; and the third driving mechanism 224 includes a second threaded rod 2241 located within the first limiting groove 2221 and a second driving motor 2242 that drives the second threaded rod 2241 to rotate. In actual implementation, the second threaded rod 2241 and the second driving motor 2242 cooperate to control the lifting distance of the first negative pressure suction head, thereby facilitating accurate alignment of the tempered glass, touch layer, and display layer, effectively preventing displacement of the tempered glass, touch layer, and display layer.

[0053] Optionally, the first negative pressure adsorption head 221 further includes a first connecting portion 2213 connected between the first negative pressure suction cup 2212 and the first limiting protrusion 2211;

[0054] Optionally, the glue dispensing device 3 includes a second frame 3133, a glue injection assembly 32 disposed on the second frame 3133, and a fourth drive mechanism 33 for driving the glue injection assembly 32 to move upward and downward. The glue injection assembly 32 includes a first lifting rod 321, a glue injection head 322 connected to the lower end of the first lifting rod 321, and a glue injection tube 323 connected to the glue injection head 322. The first lifting rod 321 is slidably connected to the second frame 3133. The second frame 3133 includes a sliding groove 311 that cooperates with the first lifting rod 321. The fourth drive mechanism 33 includes a third threaded rod 331 that extends into the sliding groove 311 and a third drive motor 332 that drives the third threaded rod 331 to rotate. The third threaded rod 331 is threadedly connected to the first lifting rod 321. The glue injection head 322 can be extended into the carrier box 13. In actual implementation, the lifting distance of the glue injection head 322 can be efficiently and accurately controlled, facilitating rapid glue injection by the glue injection head 322.

[0055] Optionally, the glue suction device 4 includes a glue suction component 41, a third frame 4233 carrying the glue suction component 41, and a fifth driving mechanism 43 driving the glue suction component 41 to move up and down;

[0056] Optionally, the glue suction assembly 41 includes a second lifting rod 411, a glue suction head 412 connected to the lower end of the second lifting rod 411, and a glue suction tube 413 connected to the glue suction head 412; the second lifting rod 411 is slidably connected to the third frame 4233; the fifth driving mechanism 43 includes a fourth threaded rod 431 rotatably connected to the third frame 4233 and a fourth driving motor 432 driving the fourth threaded rod 431 to rotate; the fourth threaded rod 431 is threadedly connected to the third lifting rod;

[0057] In actual implementation, the fourth driving motor 432 and the fourth threaded rod 431 cooperate to make the lifting process of the glue suction tube 413 stable and efficient.

[0058] Optionally, the carrying box 13 includes a box wall 132, a carrying groove 133 in the box wall 132, and a scraper seat 134 arranged in the carrying groove 133; the glue suction head 412 includes an inserting protrusion 4121 that can be inserted into the carrying groove 133 and squeeze the scraper seat 134; the scraper seat 134 includes a placement groove 1341, a carrying plate 1342 that moves up and down along the placement groove 1341, and a first support spring 1343 arranged in the placement groove 1341 and used to support the carrying plate 1342; in actual implementation, the inserting protrusion 4121 can be inserted into the carrying groove 133 to squeeze the tempered glass, touch layer and display layer stacked on the carrying groove 133; so that the carrying groove 133, tempered glass, touch layer and display layer move into the placement groove 1341, the first support spring 1343 contracts, and presses the touch screen assembly (tempered glass, touch layer and display layer) so that it is tightly connected after the glue solidifies.

[0059] Optionally, the scraper seat 134 also includes a scraping wall 1344 surrounding the placement groove 1341; the scraping wall 1344 has an inclined surface 1345; the inclined surface 1345 gradually tilts outward from top to bottom; during the process of the glue suction head 412 moving, it extends into the protrusion 4121 to squeeze the touch screen assembly into the placement groove 1341, and the glue at the edge of the touch screen assembly is scraped off by the scraping wall 1344, and then moves along the inclined surface 1345; the glue moving along the inclined surface 1345 is gathered into the collection groove 1331.

[0060] Optionally, a collecting groove 1331 is formed between the scraping wall 1344 and the box wall 132; the carrying box 13 also includes a glue suction hole 1321 arranged on the box wall 132 and connected to the collecting groove 1331, and a first hole blocking mechanism 1322 arranged outside the box wall 132; the first hole blocking mechanism 1322 includes a guide rod a1, a lifting plug a2 that moves up and down along the guide rod a1, and a second support spring a3 that is sleeved on the outside of the guide rod a1 and is used to support the lifting plug a2; in actual implementation, the lifting plug a2 can block the glue suction hole 1321 under the support of the second spring, which can effectively prevent the glue from flowing out unintentionally.

[0061] Optionally, the glue suction head 412 further includes an outer wall 4122 wound around the outside of the protrusion 4121; the outer wall 4122 has a glue discharge hole 4123 corresponding to the glue suction hole 1321; the glue suction tube 413 is connected to the glue discharge hole 4123; the outer wall 4122 can squeeze the lifting plug a2; when the glue suction head 412 is pressed down, the outer wall 4122 will squeeze the lifting plug a2, so that the lifting plug a2 moves downward along the guide rod a1, and the second support spring a3 is compressed. shrink; when the glue suction head 412 is pressed down to the bottom, the glue discharge hole 4123 is connected to the glue suction hole 1321, and the glue in the collecting tank 1331 is discharged through the glue suction hole 1321, the glue discharge hole 4123 and the glue suction tube 413; wherein, the glue suction tube 413 is connected to the air pump, and the air pump can provide suction; during the rising process of the glue suction head 412, the second support spring a3 is restored, and the lifting plug a2 moves upward along the guide rod a1 to re-block the glue suction hole 1321.

[0062] Optionally, the glue suction head 412 also includes an inner wall 4124 extending between the protrusion 4121 and the outer wall 4122 and an intermediate groove between the inner wall 4124 and the outer wall 4122; the box wall 132 can extend into the intermediate groove; in actual implementation, the downward pressure distance of the glue suction head 412 is limited by the cooperation between the box wall 132 and the intermediate groove. When the box wall 132 hits the top of the intermediate groove, the glue discharge hole 4123 is aligned with the glue suction hole 1321. By setting the limit, the glue discharge hole 4123 and the glue suction hole 1321 are connected.

[0063] Optionally, the carrying box 13 also includes an inner wall 135 connected to the box wall 132; the inner wall 135 is above the collecting groove 1331; the box wall 132 and the inner wall 135 are connected to form a hollow groove 136; the carrying box 13 has a hot air inlet hole 137 on the box wall 132 and a hot air outlet hole 138 on the inner wall 135; the hot air inlet hole 137 and the hot air outlet hole 138 are arranged correspondingly; in the actual implementation process, hot air can enter the carrying groove 133 through the hot air inlet hole 137 and the hot air outlet hole 138, and when the hot air enters, the glue can be dried, thereby accelerating the drying efficiency of the glue.

[0064] Optionally, the carrying box 13 further includes a second blocking mechanism 139 disposed in the hollow groove 136; the second blocking mechanism 139 includes a separating plug b1 that moves up and down along the hollow groove 136, and a third supporting spring b2 disposed in the hollow groove 136 and supporting the separating plug b1; the inner wall 4124 can extend into the hollow groove 136; the glue suction head 412 further includes an air hole 4126 disposed on the inner wall 4124; in actual implementation, when no glue is sucked, the separating plug b1 can block the hot air inlet hole 137 and the hot air outlet hole 138 to prevent hot air from entering the carrying groove 133 and avoiding hot air drying the hot air in the collecting groove 133 1; when sucking glue, the outer wall 4122 presses down the lifting plug a2, while the inner wall 4124 also squeezes the separating plug b1, causing the third support spring b2 to contract and store force; when the glue discharge hole 4123 is connected to the glue suction hole 1321, the hot air inlet hole 137, the air hole 4126 and the hot air outlet hole 138 are connected, and the hot air can enter the bearing groove 133; and the glue suction head 412 closes the opening of the bearing groove 133, and the hot air enters the bearing groove 133, causing the internal air pressure thereof to increase. Under the action of the air pressure, the glue in the collecting groove 1331 will quickly gather to the glue discharge hole 4123, which can effectively accelerate the discharge of the glue.

[0065] Optionally, the outer wall 4122 is made of a heat-insulating material; the scraping wall 1344 is made of a heat-conducting material. In actual implementation, the scraping wall 1344 is heated by hot air to facilitate drying of the glue in the interlayer.

[0066] Optionally, the unloading device 5 includes a second conveying mechanism and a second adsorption mechanism connected to the second conveying mechanism; the second conveying mechanism includes a third end portion close to the turntable 11 and a fourth end portion away from the turntable 11; the second conveying mechanism conveys from the third end portion to the fourth end portion; the second adsorption mechanism is connected above the third end portion;

[0067] Optionally, the second adsorption mechanism includes a second negative pressure adsorption head that can be extended into the carrying box 13, a second slider for carrying the second negative pressure adsorption head, a sixth driving mechanism for driving the second slider to move along the conveying direction of the second conveying mechanism, and a seventh driving mechanism for driving the second negative pressure adsorption head to move up and down;

[0068] Optionally, the second conveying mechanism includes a second conveyor belt and a fourth frame 33 carrying the second conveyor belt; the second slider is slidably connected to the fourth frame 33; the sixth driving mechanism includes a fifth driving motor fixedly connected to the fourth frame 33 and a fifth threaded rod fixedly connected to the output shaft of the fifth driving motor; the fifth threaded rod is threadedly connected to the second slider;

[0069] Optionally, the second slider includes a second limiting groove extending vertically; the second negative pressure adsorption head includes a second limiting protrusion located in the second limiting groove and a second negative pressure suction cup located outside the second limiting groove; the seventh driving mechanism includes a sixth threaded rod located in the second limiting groove and a sixth driving motor driving the sixth threaded rod to rotate; the second negative pressure adsorption head also includes a second connecting portion connected between the second negative pressure suction cup and the second limiting protrusion.

[0070] The unloading device 5 has the same structure as the loading device 2 but has a different conveying direction.

[0071] X1. Installing tempered glass: The turntable 11 rotates to drive the empty carrier box 13 into one of the loading devices 2. The loading device 2 absorbs the tempered glass and places the tempered glass on the carrier plate 1342 of the carrier box 13;

[0072] X2. First glue application: The turntable 11 rotates, driving the carrier box 13 to rotate and enter the glue dispensing device 3. The glue injection head 322 of the glue dispensing device 3 descends into the carrying groove 133 to inject glue onto the upper surface of the tempered glass. After the glue injection is completed, the glue injection head 322 rises and moves out of the carrying groove 133.

[0073] X3. Install the touch layer: Turntable 11 rotates the carrier box 13 into its second loading device 2. The second loading device 2 absorbs the touch layer into the loading groove 133. The touch screen is placed on the tempered glass and pressed downward, causing the carrier plate 1342 to move downward. The glue in the interlayer between the tempered glass and the touch layer is scraped off for the first time.

[0074] X4. Second glue application: The turntable 11 rotates to drive the carrier box 13 into the second glue dispensing device 3. The glue injection head 322 of the second glue dispensing device 3 descends into the carrier groove 133 to inject glue onto the upper surface of the touch layer. After glue injection is completed, the glue injection head 322 rises and moves out of the carrier groove 133.

[0075] X5. Glue suction and drying: The turntable 11 rotates to drive the carrying box 13 into the glue suction device 4, and the glue suction head 412 is pressed down, extending into the protrusion 4121 to press the touch screen assembly downward, so that the touch screen assembly moves into the placement groove 1341, and the glue overflowing from the edge of the touch screen assembly is scraped off for the second time; at the same time, during the downward pressing process, the glue suction hole 1321 and the glue discharge hole 4123 are connected, and the hot air inlet hole 137, the air hole 4126 and the hot air outlet hole 138 are connected, and hot air is injected into the carrying groove 133 to discharge the glue in the collecting groove 1331 and dry the glue in the interlayer of the touch screen assembly.

[0076] The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0077] 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 transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dispensing machine for touch screen production, comprising a device body; characterized in that: The main body of the equipment includes a carrying device, a loading device, a glue dispensing device, a glue suction device and a unloading device; the carrying device includes a turntable, a first driving mechanism for driving the turntable to rotate and a carrying box arranged on the turntable, and a plurality of the carrying boxes are evenly arranged around the rotating shaft of the turntable; three loading devices are evenly arranged around the outside of the turntable; one unloading device is arranged between two adjacent loading devices; one glue suction device is arranged between the unloading device and the loading device; two glue dispensing devices are respectively arranged between two adjacent loading devices; the empty carrying box passes through the first loading device, the glue dispensing device, the second loading device, the second glue dispensing device, the third loading device, the glue suction device and the unloading device in sequence; The glue suction device includes a glue suction component, a third frame carrying the glue suction component, and a fifth driving mechanism driving the glue suction component to move up and down; the glue suction component includes a second lifting rod, a glue suction head connected to the lower end of the second lifting rod, and a glue suction tube connected to the glue suction head; The carrying box includes a box wall, a carrying groove in the box wall, and a scraper seat arranged in the carrying groove; the glue suction head includes an inserting protrusion that can extend into the carrying groove and squeeze the scraper seat; the scraper seat includes a placement groove, a carrying plate that moves up and down along the placement groove, and a first support spring arranged in the placement groove and used to support the carrying plate; The scraper seat further includes a scraping wall surrounding the placement groove; the scraping wall has an inclined surface; the inclined surface gradually tilts outward from top to bottom; A collecting groove is formed between the scraping wall and the box wall; the carrying box further includes a glue suction hole provided on the box wall and communicating with the collecting groove, and a first hole blocking mechanism provided outside the box wall; the first hole blocking mechanism includes a guide rod, a lifting plug that moves up and down along the guide rod, and a second support spring sleeved on the outside of the guide rod and used to support the lifting plug; The glue suction head also includes an outer wall arranged around the outside of the protrusion; the outer wall has a glue discharge hole corresponding to the glue suction hole; the glue suction tube is connected to the glue discharge hole; the outer wall can squeeze the lifting plug; The glue suction head further comprises an inner wall extending between the protrusion and the outer wall and a middle groove between the inner wall and the outer wall; the box wall can extend into the middle groove; The carrier box further includes an inner wall connected to the box wall; the inner wall is located above the collecting slot; the box wall and the inner wall are connected to form a hollow slot; the carrier box has a hot air inlet hole on the box wall and a hot air outlet hole on the inner wall; the hot air inlet hole and the hot air outlet hole are arranged correspondingly; The carrying box also includes a second hole-blocking mechanism arranged in the hollow groove; the second hole-blocking mechanism includes a separating plug that moves up and down along the hollow groove, and a third supporting spring arranged in the hollow groove and supporting the separating plug; the inner wall can extend into the hollow groove; the glue suction head also includes an air hole arranged on the inner wall.

2. A dispensing machine for touch screen production according to claim 1, characterized in that: The loading device includes a first conveying mechanism and a first adsorption mechanism connected to the first conveying mechanism; the first conveying mechanism includes a first end close to the turntable and a second end away from the turntable; the first conveying mechanism conveys from the second end toward the first end; the first adsorption mechanism is connected above the first end.

3. A dispensing machine for touch screen production according to claim 2, characterized in that: The first adsorption mechanism includes a first negative pressure adsorption head that can be extended into the carrying box, a first slider for carrying the first negative pressure adsorption head, a second driving mechanism for driving the first slider to move along the conveying direction of the first conveying mechanism, and a third driving mechanism for driving the first negative pressure adsorption head to move up and down.

4. A dispensing machine for touch screen production according to claim 3, characterized in that: The first conveying mechanism includes a first conveyor belt and a first frame supporting the first conveyor belt; the first slider is slidably connected to the first frame; the second driving mechanism includes a first driving motor fixedly connected to the first frame and a first threaded rod fixedly connected to the output shaft of the first driving motor; the first threaded rod and the first slider are connected together by threads.

5. A dispensing machine for touch screen production according to claim 4, characterized in that: The first slider includes a first limiting slide groove extending vertically; the first negative pressure adsorption head includes a first limiting protrusion located in the first limiting slide groove and a first negative pressure suction cup located outside the first limiting slide groove; the third driving mechanism includes a second threaded rod located in the first limiting slide groove and a second driving motor that drives the second threaded rod to rotate.

6. A dispensing machine for touch screen production according to claim 5, characterized in that: The first negative pressure adsorption head also includes a first connecting portion connected between the first negative pressure suction cup and the first limiting protrusion.

7. A dispensing machine for touch screen production according to claim 6, characterized in that: The glue dispensing device includes a second frame, a glue injection assembly arranged on the second frame, and a fourth drive mechanism for driving the glue injection assembly to rise and fall; the glue injection assembly includes a first lifting rod, a glue injection head connected to the lower end of the first lifting rod, and a glue injection tube connected to the glue injection head; the first lifting rod is slidably connected to the second frame; the second frame includes a sliding groove that cooperates with the first lifting rod; the fourth drive mechanism includes a third threaded rod extending into the sliding groove and a third drive motor that drives the third threaded rod to rotate; the third threaded rod is threadedly connected to the first lifting rod; the glue injection head can be extended into the carrier box.

8. A dispensing machine for touch screen production according to claim 7, characterized in that: The second lifting rod is slidably connected to the third frame; the fifth driving mechanism includes a fourth threaded rod rotatably connected to the third frame and a fourth driving motor driving the fourth threaded rod to rotate; the fourth threaded rod is threadedly connected to the third lifting rod; the outer wall is made of heat insulating material; and the scraping wall is made of heat conductive material.

9. A dispensing machine for touch screen production according to claim 8, characterized in that: The unloading device includes a second conveying mechanism and a second adsorption mechanism connected to the second conveying mechanism; the second conveying mechanism includes a third end portion close to the turntable and a fourth end portion away from the turntable; the second conveying mechanism conveys from the third end portion to the fourth end portion; the second adsorption mechanism is connected above the third end portion; The second adsorption mechanism includes a second negative pressure adsorption head that can be extended into the carrier box, a second slider for supporting the second negative pressure adsorption head, a sixth driving mechanism for driving the second slider to move along the conveying direction of the second conveying mechanism, and a seventh driving mechanism for driving the second negative pressure adsorption head to move up and down; The second conveying mechanism includes a second conveyor belt and a fourth frame carrying the second conveyor belt; the second slider is slidably connected to the fourth frame; the sixth driving mechanism includes a fifth driving motor fixedly connected to the fourth frame and a fifth threaded rod fixedly connected to the output shaft of the fifth driving motor; the fifth threaded rod is threadedly connected to the second slider; The second slider includes a second limiting slide groove extending vertically; the second negative pressure adsorption head includes a second limiting protrusion located in the second limiting slide groove and a second negative pressure suction cup located outside the second limiting slide groove; the seventh driving mechanism includes a sixth threaded rod located in the second limiting slide groove and a sixth driving motor that drives the sixth threaded rod to rotate; the second negative pressure adsorption head also includes a second connecting part connected between the second negative pressure suction cup and the second limiting protrusion.

10. A dispensing method using the dispensing machine for touch screen production according to any one of claims 1 to 9, characterized in that: The following steps are involved: X1. Installing tempered glass: The turntable rotates to drive the empty carrier box into one of its loading devices. The loading device absorbs the tempered glass and places the tempered glass on the carrier plate of the carrier box; X2. First glue application: The turntable rotates to drive the carrier box into its glue dispensing device. The glue dispensing head of the glue dispensing device descends into the carrier groove and dispenses glue onto the upper surface of the tempered glass. After the glue dispensing is completed, the glue dispensing head rises and moves out of the carrier groove. X3. Install the touch layer: The turntable drives the carrier box to rotate and enter the second loading device. The second loading device absorbs the touch layer into the loading slot. Place the touch screen on the tempered glass and press the touch screen downward to move the carrier plate downward. Scrape off any glue that overflows from the interlayer between the tempered glass and the touch layer. X4. Second glue application: The turntable rotates to drive the carrier box into its second glue dispensing device. The glue injection head of the second glue dispensing device descends into the carrier groove and injects glue onto the upper surface of the touch layer. After the glue injection is completed, the glue injection head rises and moves out of the carrier groove. X5. Glue suction and drying: The rotation of the turntable drives the carrying box into the glue suction device, and the glue suction head is pressed down, extending into the protrusion to press the touch screen assembly downward, so that the touch screen assembly moves relative to the placement groove, and the glue overflowing from the edge of the touch screen assembly is scraped off for the second time; at the same time, during the downward pressing process, the glue suction hole and the glue discharge hole are connected, and the hot air inlet hole, the air hole and the hot air outlet hole are connected, and hot air is injected into the carrying groove to discharge the glue in the collecting groove and dry the glue in the interlayer of the touch screen assembly.

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