A side coating equipment for touch screen processing

Abstract

The present invention provides a side coating device for touch screen processing, which relates to the field of touch screen manufacturing technology and solves the problem of poor quality of mounting cover plates and functional slices in the prior art. The dispensing equipment arranges a dispensing machine, a pre-curing device and a glue coating machine in sequence from upstream to downstream along the conveyor line. The dispensing equipment can first apply a plurality of liquid dot-shaped glue spots arranged at intervals to the cover plate, and then use the pre-curing device to convert the dot-shaped glue spots into semi-solid dot-shaped glue blocks, and then use the glue coating machine to apply a layer of liquid glue connected to at least part of the dot-shaped glue blocks to the cover plate. In this way, the dot-shaped glue blocks can play a certain role in limiting and positioning the liquid glue layer, so as to effectively control the flow direction and flow degree of the glue during the subsequent flipping of the cover plate and the mounting process with the functional slice, prevent glue overflow, reduce the deflection and offset of the cover plate, promote the liquid glue layer to fill the small gap between the cover plate and the functional slice, and improve the mounting quality.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen manufacturing, and in particular to side coating equipment for touch screen processing. Background Art

[0002] Touchscreens are a core component of human-computer interaction, typically assembled from a functional sheet and a cover. Depending on the product's application scenario, two lamination processes are used: edge-frame lamination and full-frame lamination. The former uses adhesive dispensed around the perimeter to create an air gap, while the latter uses liquid optical adhesive for full-surface bonding.

[0003] The touchscreen production process primarily involves loading the substrate (functional sheet and cover), precise glue dispensing of the cover, lamination and assembly, and unloading the finished product (touchscreen). Before attaching the cover and functional sheet, the cover is first coated with optical adhesive using a glue dispensing machine. A flipping mechanism then flips the coated cover over and transports it to the placement station where the functional sheet is placed, ultimately creating the touchscreen.

[0004] At present, there are problems with poor mounting quality of cover plates and functional sheets, such as glue overflow, uneven fitting, and misalignment. Summary of the Invention

[0005] The purpose of the present invention is to design a side coating device for touch screen processing to solve the problem of poor mounting quality of cover plates and functional sheets.

[0006] The present invention is achieved through the following technical solutions:

[0007] A side coating equipment for touch screen processing provided by the present invention includes a dispensing device, which includes a conveyor line and a dispensing machine, a pre-curing device and a glue coating machine arranged in sequence along the conveying direction of the conveyor line; the conveyor line is used to receive and convey the cover plate along its conveying direction; the dispensing machine is arranged in correspondence with the dispensing area of ​​the conveyor line, so as to apply a plurality of liquid dot-shaped glue spots arranged at intervals to the upper surface of the cover plate passing through the dispensing area; the pre-curing device is arranged in correspondence with the pre-curing area of ​​the conveyor line, so as to convert all the dot-shaped glue spots on the cover plate passing through the pre-curing area into semi-solid dot-shaped glue blocks; the glue coating machine is arranged in correspondence with the gluing area of ​​the conveyor line, so as to apply a layer of liquid glue connected to at least part of the dot-shaped glue blocks to the upper surface of the cover plate passing through the gluing area.

[0008] When the above-mentioned setting structure is adopted, the dispensing equipment arranges the dispensing machine, pre-curing device and glue coating machine in sequence from upstream to downstream along the conveyor line, so that the dispensing equipment can successively perform multi-point dispensing, pre-curing and gluing operations on the cover plate conveyed on the conveyor line. In this way, the liquid dot-shaped glue spots can be converted into semi-cured dot-shaped glue blocks by the pre-curing device to limit the flow ability of the liquid glue layer when passing through the dot-shaped glue blocks on the upper surface of the cover plate, so as to play a certain role in limiting and positioning the liquid glue layer. During the subsequent flipping of the cover plate and the mounting process with the functional sheet, the liquid glue layer will not flow excessively to the outside or to one side uncontrollably, and can effectively control the flow direction and degree of the glue during mounting, effectively prevent glue overflow, reduce the deflection and offset of the cover plate, and promote the liquid glue layer to fill the small gap between the cover plate and the functional sheet to improve the mounting quality.

[0009] In order to further better realize the present invention, the following setting structure is particularly adopted: the side coating equipment for touch screen processing also includes a first preparation table and a loading mechanism, the top surface of the first preparation table is used to place the cover plate, and the first preparation table is located on the side of the dispensing area of ​​the conveyor line; the loading mechanism includes a connected first loading arm and a transverse movement device, the first loading arm is movably arranged on the top surface of the first preparation table, and the transverse movement device is used to drive the first loading arm to move back and forth in the transverse direction to push the cover plate located on the top surface of the first preparation table to the dispensing area of ​​the conveyor line on the corresponding side.

[0010] In order to further better implement the present invention, the following configuration structure is particularly adopted: a set of the dispensing equipment is respectively provided on two opposite sides of the first material preparation table in the transverse direction.

[0011] With this configuration, dispensing equipment is installed on opposite sides of the first preparation table. This, combined with a first loading arm that reciprocates laterally to push the cover, enables bidirectional loading. This utilizes the return stroke to complete two loading operations in a single reciprocating stroke. This reduces system latency and improves both loading efficiency and subsequent coating efficiency for the side coating equipment used in touch screen processing.

[0012] In order to further better realize the present invention, the following configuration is particularly adopted: the conveying line is arranged longitudinally.

[0013] When the above-mentioned setting structure is adopted, the dispensing equipment is arranged on both sides of the first preparation table and the conveyor line of the dispensing equipment is arranged longitudinally, which can make the structural arrangement of the side coating equipment for touch screen processing more compact.

[0014] In order to further better realize the present invention, the following setting structure is particularly adopted: the loading mechanism includes a first hopper arranged above the first preparation platform, and a discharge port is provided at the bottom of the first hopper and a first gap for discharging is formed between the first hopper and the top surface of the first preparation platform.

[0015] When the above-mentioned setting structure is adopted, the first hopper above the first material preparation platform can provide the cover plate to the first material preparation platform in a timely and continuous manner, ensuring that the loading process is continuous and stable.

[0016] In order to further better realize the present invention, the following setting structure is particularly adopted: the dispensing equipment also includes a tail tray arranged at the end of the conveying direction of the conveyor line for receiving the cover plate output by the conveyor line, and the top surface of the tail tray is provided with a positioning groove for positioning the cover plate.

[0017] In order to further better realize the present invention, the following setting structure is particularly adopted: the end groove wall of the positioning groove along the conveying direction of the conveying line is provided with a negative pressure suction port for adsorbing the side of the cover plate.

[0018] When the above-mentioned setting structure is adopted, after the negative pressure suction port is set on the groove wall of the positioning groove facing the conveyor line, a lateral negative pressure attraction can be applied to the cover plate entering the positioning groove to prompt the cover plate to be in the correct position, facilitating subsequent operation processes.

[0019] In order to further better implement the present invention, the following arrangement structure is particularly adopted: the tail end tray is arranged to be tilted downward along the conveying direction of the conveying line.

[0020] When the above-mentioned structure is adopted, the tail tray tilted downward along the conveying direction can make the cover plate slide further to the correct position in the positioning groove by gravity after coming out of the conveyor belt or can be easily sucked by the negative pressure suction port.

[0021] In order to further better realize the present invention, the following setting structure is particularly adopted: the side coating equipment for touch screen processing also includes a flipping mechanism connected to the tail end tray, the flipping mechanism includes a flip plate, a flipping motor connected to the flip plate and a negative pressure suction cup arranged in an array on the flip plate, the flip plate and the negative pressure suction cup are located below the tail end tray and the negative pressure suction cup faces upward corresponding to the opening set in the middle of the tail end tray, wherein the flipping motor can drive the flip plate and the negative pressure suction cup upward through the opening.

[0022] When the above-mentioned setting structure is adopted, the flip plate and the negative pressure suction cup are located below the tail end tray and can be flipped upward to pass through the opening set in the middle of the tail end tray. The cover plate coated with glue can be flipped to the next workstation in just one step, and the connection efficiency with the mounting station is high.

[0023] In order to further better realize the present invention, the following setting structure is particularly adopted: the side coating equipment for touch screen processing also includes a second preparation table and a mounting platform, the top surfaces of the second preparation table and the mounting platform are both used to place functional sheets, and the mounting platform is connected to the flipping mechanism for receiving the cover plate; the loading mechanism also includes a second loading arm connected to the transverse movement device, the second loading arm is fixedly connected to the first loading arm and movably arranged on the top surface of the second preparation table, and the transverse movement device is used to drive the second loading arm to move back and forth in the transverse direction to push the functional sheet located on the top surface of the second preparation table to the top surface of the mounting platform on the corresponding side.

[0024] When the above-mentioned arrangement structure is adopted, the second loading arm is fixedly connected to the first loading arm, thereby realizing synchronous loading of the cover plate and the functional sheet.

[0025] In order to further better realize the present invention, the following setting structure is particularly adopted: the loading mechanism includes a second hopper arranged above the second preparation platform, and a discharge port is provided at the bottom of the second hopper and a second gap for discharging is formed between the second hopper and the top surface of the second preparation platform.

[0026] When the above-mentioned setting structure is adopted, the second hopper above the second material preparation platform can provide functional slices to the second material preparation platform in a timely and continuous manner, ensuring that the loading process is continuous and stable.

[0027] In order to further better realize the present invention, the following setting structure is particularly adopted: the pre-curing device is configured as a light-curing device for semi-curing the dot-shaped glue spots into the dot-shaped glue blocks by irradiating the dot-shaped glue spots with light, or, is configured as a heat-curing device for semi-curing the dot-shaped glue spots into the dot-shaped glue blocks by heating the dot-shaped glue spots.

[0028] In order to further better realize the present invention, the following setting structure is particularly adopted: the dispensing machine includes a first three-axis slide and a point-shaped dispensing head installed at the output end of the first three-axis slide; the glue coating machine includes a second three-axis slide and a strip-shaped dispensing head installed at the output end of the second three-axis slide or multiple dispensing heads with point-shaped glue outlets arranged side by side.

[0029] The present invention has the following advantages and beneficial effects:

[0030] In the present invention, the dispensing equipment arranges a dispensing machine, a pre-curing device, and a glue coating machine in sequence from upstream to downstream along the conveyor line, so that the dispensing equipment can successively perform multi-point dispensing, pre-curing, and glue coating operations on the cover plate conveyed on the conveyor line. In this way, the pre-curing device can transform the liquid dot-shaped glue spots into semi-cured dot-shaped glue blocks to limit the flow ability of the liquid glue layer when passing through the dot-shaped glue blocks on the upper surface of the cover plate, thereby playing a certain role in limiting and positioning the liquid glue layer. During the subsequent flipping of the cover plate and the mounting process with the functional sheet, the liquid glue layer will not flow excessively to the outside or flow to one side uncontrollably, and can effectively control the flow direction and flow degree of the glue during mounting, effectively prevent glue overflow, reduce the deflection and offset of the cover plate, and promote the liquid glue layer to fill the small gap between the cover plate and the functional sheet to improve the mounting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a schematic diagram of the appearance of the side coating equipment used for touch screen processing;

[0033] Figure 2 The internal structure of one side of the side coating equipment for touch screen processing is shown;

[0034] Figure 3 yes Figure 2 An enlarged view of a part A in the middle diagram schematically shows the dot-shaped adhesive spots on the surface of the cover plate;

[0035] Figure 4 The internal structure of the other side of the side coating equipment for touch screen processing in the longitudinal direction is shown;

[0036] Figure 5 yes Figure 4 Enlarged view of the middle part B;

[0037] Figure 6 exist Figure 4 The second preparation table and the second hopper are hidden on the basis;

[0038] Figure 7 yes Figure 6 Enlarged view of the part C in the middle;

[0039] Figure 8 exist Figure 6 The touch screen on the pressure roller assembly and the fixture is further hidden on this basis;

[0040] Figure 9 yes Figure 8 A magnified view of the middle part D;

[0041] Figure 10 The internal structure of the other side of the side coating equipment for touch screen processing is shown;

[0042] Figure 11 yes Figure 10 A magnified view of the local E in the middle;

[0043] Figure 12 The downstream structure of the side coating equipment for touch screen processing is shown in the vertical perspective;

[0044] Figure 13 yes Figure 12 A magnified view of the local F in the middle;

[0045] Figure 14 The upstream side structure of the side coating equipment for touch screen processing is shown in the vertical perspective;

[0046] Figure 15 The production process of the cover plate by the dispensing equipment is shown.

[0047] The following are marked in the figure:

[0048] 100. Side coating equipment for touch screen processing; 200. Functional sheet; 300. Cover plate; 400. Touch screen; 501. Dotted adhesive spots; 502. Dotted adhesive blocks; 503. Liquid adhesive layer;

[0049] 10. The first preparation station;

[0050] 20. Glue dispensing equipment; 21. Conveyor line; 22. Glue dispensing machine; 221. First three-axis slide; 222. Dot dispensing head; 23. Pre-curing device; 24. Glue applicator; 241. Second three-axis slide; 242. Strip dispensing head; 25. Tail tray; 251. Positioning slot; 252. Longitudinal stop bar; 253. Horizontal stop bar; 254. Negative pressure suction port; 255. Opening;

[0051] 30. Feeding mechanism; 31. First feeding arm; 32. Transverse movement device; 33. First hopper; 331. First gap; 34. Second feeding arm; 35. Second hopper; 351. Second gap;

[0052] 40. Flipping mechanism; 41. Flip plate; 42. Flipping motor; 43. Negative pressure suction cup;

[0053] 50. Second preparation station;

[0054] 60. Mounting platform; 61. Support; 62. Fixture; 621. Groove; 622. Notch; 623. Bottom negative pressure suction port; 624. Side negative pressure suction port;

[0055] 70. Pressure roller assembly; 71. Wheel frame; 72. Pressure roller; 73. Ratchet; 74. Pawl; 75. Buffer spring; 76. Third gap;

[0056] 81. Unloading arm;

[0057] 90. Output conveyor belt. DETAILED DESCRIPTION

[0058] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other implementations obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0059] In the description of this application, it should be noted that, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0060] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not intended to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first," "second," and the like generally refer to a class and do not limit the number of objects. For example, the first object can be one or more. Furthermore, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects are in an "or" relationship. It should also be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be understood broadly. For example, they can mean fixed, removable, or integral; mechanically or electrically connected; directly or indirectly through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances.

[0061] This application provides a side coating device for touch screen processing, such as Figures 1-15 As shown, it is particularly configured as follows:

[0062] like Figure 1 As shown, the side coating equipment 100 for touch screen processing includes a frame, a mounting platform installed on the frame, and a warehouse body surrounding the frame. An output conveyor belt 90 with its upstream end located inside the warehouse body is provided outside the warehouse body.

[0063] like Figure 2 and Figure 3 As shown, the side coating equipment 100 for touch screen processing includes a glue dispensing device 20, and the glue dispensing device 20 includes a conveyor line 21 installed on a mounting platform, a glue dispensing machine 22, a pre-curing device 23 and a glue coating machine 24.

[0064] The conveyor line 21 is arranged with a glue dispensing area, a pre-curing area, and a glue coating area in sequence along its conveying direction. The conveyor line 21 is used to receive the cover sheet 300 and convey the cover sheet 300 along its conveying direction so as to pass through the glue dispensing area, the pre-curing area, and the glue coating area in sequence. The glue dispensing machine 22, the pre-curing device 23, and the glue coating machine 24 are respectively arranged to correspond to the glue dispensing area, the pre-curing area, and the glue coating area on the conveyor line 21, such that the glue dispensing machine 22 is located upstream of the pre-curing device 23, and the pre-curing device 23 is located upstream of the glue coating machine 24.

[0065] The glue outlet of the glue dispenser 22 is a round opening with a relatively small opening size, which is used to output liquid optical glue spots. When the cover plate 300 passes through the glue dispensing area on the conveyor line 21, Figure 3 The glue dispenser 22 can controllably apply liquid glue spots 501 to the upper surface of the cover plate 300. The glue dispenser 22 can specifically be a visual optical glue dispenser, which can adaptively adjust the position of the glue outlet according to the captured position of the cover plate 300 to apply the glue spots 501 at the correct position on the cover plate 300.

[0066] The dispensing head of the dispensing machine 22 can be set to one, or can be set to Figure 3 The multiple ones shown in the figure are used to improve dispensing efficiency.

[0067] refer to Figure 3 In this embodiment, the glue dispenser 22 can controllably apply multiple spaced adhesive dots 501 to the upper surface of the cover plate 300 passing through the glue dispensing area. Adjacent adhesive dots 501 applied by the glue dispenser 22 to the cover plate 300 are spaced apart from each other to prevent them from intersecting after leveling and before semi-curing. This ensures that each semi-cured adhesive dot 502 is an independent patch.

[0068] The pre-curing device 23 is a device for curing the liquid optical adhesive. It can controllably apply a certain time of action to the liquid optical adhesive to allow the liquid optical adhesive to be transformed into a semi-solid state, so that its final fluidity becomes worse but still has a certain fluidity.

[0069] The pre-curing device 23 can cure all the dot-shaped adhesive spots 501 on the cover plate 300 passing through the pre-curing area, so that the liquid dot-shaped adhesive spots 501 with strong fluidity are eventually transformed into semi-solid dot-shaped adhesive blocks 502 with poor fluidity.

[0070] In this embodiment, the pre-curing device 23 can specifically be a photocuring device. Accordingly, the material of the dot-shaped glue spot 501 is a photocuring optical glue, such as UV-curing optical glue. The pre-curing device 23 can irradiate the dot-shaped glue spot 501 with corresponding light for a certain period of time to cross-link its internal part to semi-cured into a dot-shaped glue block 502.

[0071] Alternatively, the pre-curing device 23 can also be a heat-curing device. Accordingly, the material of the dot-shaped glue spots 501 is a heat-curing optical glue that is more sensitive to temperature. The pre-curing device 23 can heat the surrounding environment of the cover plate 300 to heat the dot-shaped glue spots 501 for a certain period of time, so that the dot-shaped glue spots 501 can be semi-cured into dot-shaped glue blocks 502.

[0072] refer to Figure 10 The glue outlet of the glue coating machine 24 is a strip-shaped opening with a relatively large opening size, and the opening is a slit, which can output the liquid optical adhesive strip. When the cover plate 300 passes through the glue coating area on the conveyor line 21, the glue coating machine 24 can be controlled to continuously apply the liquid optical adhesive strip to the upper surface of the cover plate 300 along a certain direction (for example, along the horizontal direction) to cover a certain area of ​​the cover plate 300 to obtain a layer of liquid adhesive layer 503. At the same time, after the liquid adhesive layer 503 is leveled, it can cover at least a portion of the area of ​​the dot-shaped adhesive block 502 to connect with at least a portion of the dot-shaped adhesive block 502.

[0073] The glue coating machine 24 can specifically be a visual optical glue coating machine, which can adaptively adjust the position of the glue outlet according to the photographed position of the cover plate 300 to apply the optical glue strip at the correct position on the cover plate 300.

[0074] Alternatively, in some embodiments, the glue coating machine 24 is composed of a plurality of glue dispensing heads with point-shaped glue outlets, so that all the point-shaped glue outlets of the glue coating machine 24 are closely arranged in one direction, so that the sprayed glue can form a roughly strip-shaped glue strip or quickly level and intersect with each other after reaching the surface of the cover plate 300.

[0075] like Figure 15As shown, during production, the cover plate 300 moves along the conveyor line 21, and the glue dispenser 22 of the glue dispensing equipment 20 first dispenses glue on the cover plate 300 to form dot-shaped glue spots 501 on the surface of the cover plate 300. Then, when the cover plate 300 passes through the pre-curing device 23, the pre-curing device 23 pre-cures the dot-shaped glue spots 501 to transform the dot-shaped glue spots 501 into dot-shaped glue blocks 502. Then, when the cover plate 300 passes through the glue coating machine 24, the glue coating machine 24 performs glue coating on the cover plate 300 to apply a layer of liquid glue 503 on the cover plate 300. Then, the liquid glue layer 503 is leveled to more areas on the surface of the cover plate 300 under the action of the dot-shaped glue blocks 502.

[0076] In this embodiment, the glue dispensing device 20 is configured to sequentially arrange a glue dispenser 22, a pre-curing device, and a glue coating device 24 along the conveyor line 21 from upstream to downstream, so that the glue dispensing device 20 can sequentially perform multiple glue dispensing, pre-curing, and glue coating operations on the cover plate 300 conveyed on the conveyor line 21. In this way, the pre-curing device can semi-cure the liquid glue spots 501 for a certain period of time, ultimately transforming the liquid glue spots 501 into semi-cured glue blocks 502. This increases the viscosity of the glue blocks 502 relative to the glue spots 501 while also allowing them to retain a certain degree of fluidity, thereby achieving a good balance between the fluidity and positioning ability of the glue blocks 502.

[0077] In this way, the dotted glue blocks 502 act as pillars that block the flow of the glue, limiting the flow of the liquid glue layer 503 on the upper surface of the cover plate 300 as it passes through the dotted glue blocks 502. This acts to restrict and position the liquid glue layer 503, preventing the pre-cured liquid glue layer 503 from overflowing from the bonding area due to gravity or pressure when the cover plate 300 is flipped or pressed. This ensures that during the subsequent flipping of the cover plate 300 and the bonding process with the functional sheet 200, the liquid glue layer 503 will not flow excessively outward or to one side in an uncontrolled manner. This effectively controls the direction and degree of glue flow during bonding, effectively preventing glue overflow, avoiding localized joints, reducing deflection and offset of the cover plate 300, and promoting the liquid glue layer 503 to fill the small gap between the cover plate 300 and the functional sheet 200, thereby improving bonding quality.

[0078] In addition, because the dot-shaped glue blocks 502 are not fully cured and their viscosity is greater than that of the dot-shaped glue spots 501, during the process of mounting the cover plate 300 and the functional slice 200, the dot-shaped glue blocks 502 can better fix the relative positions of the cover plate 300 and the functional slice 200, reducing the degree of misalignment caused by movement during mounting. At the same time, they can also provide sufficient support for the cover plate 300, improve the degree of deflection caused by uneven pressure distribution, and thus prevent the liquid glue layer 503 from excessively flowing to a certain point and causing glue overflow. Because the semi-cured dot-shaped glue blocks 502 still have a certain degree of fluidity, during the process of mounting the cover plate 300 and the functional slice 200, they can be squeezed and flow to the surrounding areas and into small gaps to fill the gaps, thereby improving the mounting quality.

[0079] According to some optional embodiments, Figure 2 、 Figure 4 、 Figure 6 、 Figure 8 and Figure 10 As shown, the dispensing machine 22 includes a first three-axis slide 221 mounted on a mounting platform and a dot dispensing head 222 mounted on an output end of the first three-axis slide 221. The dot dispensing head 222 is provided as one or two or three arranged side by side.

[0080] In some embodiments, the glue dispenser 22 can apply a plurality of glue dots 501 sequentially arranged along the circumference of the cover plate 300 on the upper surface of the cover plate 300 to form a circle of dotted walls close to the edge of the upper surface of the cover plate 300 .

[0081] In some embodiments, the glue dispenser 22 can not only form a circle of dot-shaped walls close to the edge of the upper surface of the cover plate 300 , but also form some dot-shaped glue spots 501 within the walls.

[0082] According to some optional embodiments, Figure 2 、 Figure 4 、 Figure 6 、 Figure 8 and Figure 10 As shown, the glue coating machine 24 includes a second three-axis slide 241 mounted on the mounting platform and a glue dispensing head mounted on the output end of the second three-axis slide 241, wherein the glue dispensing head can be a strip-shaped glue dispensing head 242. Of course, the glue dispensing head can also be composed of multiple glue dispensing heads arranged side by side with glue outlets in the shape of dots.

[0083] According to some optional embodiments, Figure 2-Figure 5 As shown, the side coating equipment 100 for touch screen processing is provided with a first material preparation table 10 and a loading mechanism 30 installed on the installation platform in addition to the dispensing equipment 20.

[0084] The first preparation platform 10 provides a top surface for placing the cover plate 300. Laterally, the first preparation platform 10 is located to the side of the conveyor line 21 and corresponds to the loading area of ​​the conveyor line 21. Preferably, the loading area of ​​the conveyor line 21 overlaps with the dispensing area to make the conveyor line 21 more compact.

[0085] The loading mechanism 30 includes a first loading arm 31 and a transverse movement device 32 fixedly connected to each other. The first loading arm 31 is generally a longitudinally extending strip rod, which is movably arranged on the top surface of the first preparation platform 10 so that it can move smoothly on the top surface of the first preparation platform 10.

[0086] The traverse device 32 can be a pneumatic cylinder, an electric cylinder, or an electric lead screw slide. The output end of the traverse device 32 is fixedly connected to the first loading arm 31 via a connecting rod. The traverse device 32 is electrically connected to the control cabinet and can controllably drive the first loading arm 31 to move back and forth in the lateral direction, so that the first loading arm 31 can push the cover plate 300 located on the top surface of the first preparation table 10 to the loading area of ​​the conveyor line 21 on the corresponding side.

[0087] In some embodiments, the dispensing device 20 is provided with two sets, such as Figure 2 、 Figure 4 and Figure 14 As shown, a set of dispensing equipment 20 is installed on each of the two opposite sides of the first preparation table 10 in the lateral direction. With this configuration, the first loading arm 31, driven by the traverse device 32, can reciprocate in the lateral direction to push the cover plate 300 to the loading area on the corresponding side in batches, achieving bidirectional lateral loading. Therefore, this embodiment utilizes both the forward and return strokes of the first loading arm 31, completing two loading actions in a single reciprocating stroke. This can reduce system waiting time and improve the loading efficiency and subsequent coating efficiency of the side coating equipment 100 for touch screen processing.

[0088] According to some optional embodiments, Figure 2 、 Figure 4 and Figure 14 As shown, a set of dispensing equipment 20 is provided on each of the opposite sides of the first preparation table 10 in the horizontal direction, and the conveying line 21 of the dispensing equipment 20 is arranged longitudinally, which can make the structural layout of the side coating equipment 100 for touch screen processing more compact.

[0089] According to some optional embodiments, Figure 2 、 Figure 3 、 Figure 6 、 Figure 10 and Figure 14As shown, the loading mechanism 30 is provided with a first hopper 33. The first hopper 33 has an internal receiving cavity for the stacked cover plates 300. The first hopper 33 has a discharge port at the top and a discharge port at the bottom. The first hopper 33 is arranged as a whole above the first material preparation platform 10, and the discharge port is directly opposite the middle position of the top surface of the first material preparation platform 10. A first gap 331 for discharging is formed between the discharge port set at the bottom of the first hopper 33 and the top surface of the first material preparation platform 10, so that the first loading arm 31 can smoothly pass through the first gap 331 during the lateral movement process and push one cover plate 300 supported on the top surface of the first material preparation platform 10 at a time and finally transfer it to the loading area of ​​the conveyor line 21 on the corresponding side.

[0090] In this embodiment, the first hopper 33 above the first material preparation platform 10 can provide the cover plate 300 to the first material preparation platform 10 in a timely and continuous manner, ensuring a continuous and stable loading process.

[0091] According to some optional embodiments, Figure 2 、 Figure 4 、 Figure 5 、 Figure 10 and Figure 11 As shown, the dispensing device 20 is provided with a tail tray 25 at the end of the conveyor line 21. The end of the conveyor line 21 is located at the end position of its conveying direction. The tail tray 25 is used to receive the cover plate 300 output from the conveyor line 21 and support the cover plate 300 on its top surface to be picked up and mounted on the functional sheet 200 to form the touch screen 400.

[0092] In order to enable the cover 300 to remain in the correct position, a positioning groove 251 for positioning the cover 300 is provided on the top surface of the tail tray 25. The positioning groove 251 includes two longitudinal baffles 252 and a transverse baffle 253 arranged longitudinally. The two longitudinal baffles 252 are arranged in parallel in the transverse direction and connected to the end of the conveyor line 21 for receiving the cover 300 and limiting the transverse position of the cover 300. The transverse baffle 253 is located at the end of the longitudinal baffle 252 and is used to limit the longitudinal position of the cover 300.

[0093] In some embodiments, such as Figure 2 and Figure 5As shown, the positioning groove 251 is provided with a negative pressure suction port 254 on the transverse baffle 253. The negative pressure suction port 254 is connected to the airway extending within the transverse baffle 253 and is connected to the air pipe connector installed on the transverse baffle 253. The negative pressure suction port 254 is specifically provided on the inner groove wall of the transverse baffle 253 facing the conveyor line 21, that is, the end groove wall of the positioning groove 251 along the conveying direction of the conveyor line 21. When the cover plate 300 enters the positioning groove 251 and is at a certain distance from the transverse baffle 253, the negative pressure suction force provided by the negative pressure suction port 254 can apply continuous lateral negative pressure suction force to the side of the cover plate 300, thereby adsorbing the cover plate 300 onto the transverse baffle 253 to maintain the correct position, facilitating subsequent operation procedures.

[0094] In some embodiments, the tail tray 25 is tilted downward along the conveying direction of the conveyor line 21 so that the cover 300 can slide further to the correct position in the positioning groove 251 by gravity after coming out of the conveyor belt or can be easily attracted by the negative pressure suction port 254.

[0095] According to some optional embodiments, Figure 2 、 Figure 4 、 Figure 5 、 Figure 10 and Figure 11 As shown, the side coating equipment 100 for touch screen processing is also provided with a flipping mechanism 40 installed on the mounting platform. The flipping mechanism 40 is connected to the tail tray 25 to be used for adsorbing and flipping the cover plate 300 on the tail tray 25 and transferring it to the mounting platform to be mounted with the functional sheet 200 to obtain a touch screen 400.

[0096] An opening 255 is provided in the middle of the rear tray 25. The opening 255 passes through the rear tray 25 longitudinally and divides the rear tray 25 into two parts in the transverse direction. In some embodiments, the opening 255 also divides the transverse blocking bar 253 into two sections in the transverse direction.

[0097] The flip mechanism 40 includes a flap 41, a flip motor 42, and multiple negative pressure suction cups 43. The flap 41 is connected to the output shaft of the flip motor 42. All negative pressure suction cups 43 are arranged in an array on the flap 41. When the flap 41 is in the suction-ready state, the flap 41 is located below the rear tray 25, and the negative pressure suction cups 43 are also located below the rear tray 25 and facing upward. The flap 41 and all negative pressure suction cups 43 are arranged corresponding to the opening 255, so that the flip motor 42 can drive the flap 41 and negative pressure suction cups 43 to flip upward or downward through the opening 255.

[0098] In this embodiment, the flip plate 41 and the negative pressure suction cup 43 are located below the tail tray 25 and can be flipped upward to pass through the opening 255 set in the middle of the tail tray 25. Therefore, the cover plate 300 coated with glue can be flipped over on one side and transferred to the next workstation in just one step, and the connection efficiency with the mounting station is high.

[0099] According to some optional embodiments, Figure 2 、 Figure 4-11 As shown, the side coating equipment 100 for touch screen processing is further provided with a second material preparation table 50 and a mounting platform 60 .

[0100] The second preparation table 50 provides a top surface for placing the functional sheet 200 .

[0101] The mounting platform 60 also provides a top surface for placing the functional sheet 200. For example, Figure 5 、 Figure 8 and Figure 9 As shown, the mounting platform 60 includes a support 61 mounted on the mounting platform and a jig 62 mounted on the top of the support 61. The top surface of the jig 62 is provided with a groove 621 for positioning the functional sheet 200. The groove 621 is provided with a notch 622 on the side facing the second material preparation table 50, and the notch 622 allows the touch screen 400 to move laterally out of the groove 621 for unloading. The jig 62 is provided with a plurality of bottom negative pressure suction ports 623 at the bottom of the groove 621 to adsorb the functional sheet 200 before unloading. The jig 62 can also be provided with a lateral negative pressure suction port 624 on the side of the groove 621 to attract the functional sheet 200 to the correct position.

[0102] The mounting platform 60 is connected to the flipping mechanism 40 to receive the cover 300 through the fixture 62 .

[0103] In some embodiments, such as Figure 2 、 Figure 4 、 Figure 5 、 Figure 8 and Figure 9 As shown, the loading mechanism 30 also includes a second loading arm 34 connected to the transverse movement device 32. The second loading arm 34 is fixedly connected to the first loading arm 31 and is movably arranged on the top surface of the second preparation platform 50. The second loading arm 34 is roughly a longitudinally extending strip rod, which is movably arranged on the top surface of the second preparation platform 50 so that it can move smoothly on the top surface of the second preparation platform 50.

[0104] The depth of the groove 621 is less than the thickness of the touch screen 400. The transverse movement device 32 is used to drive the first loading arm 31 while driving the second loading arm 34 to move back and forth in the transverse direction to push the functional sheet 200 located on the top surface of the second preparation table 50 to the top surface of the mounting platform 60 on the corresponding side, such as the groove 621 set on the top surface of the jig 62.

[0105] In some embodiments, such as Figure 8 and Figure 10 As shown, a set of dispensing equipment 20 is provided on each of the two lateral sides of the first material preparation platform 10 , and a mounting platform 60 correspondingly connected to the flip mechanism 40 is provided on each of the two lateral sides of the second material preparation platform 50 .

[0106] In this embodiment, the second loading arm 34 is fixedly connected to the first loading arm 31 , thereby achieving synchronous loading of the cover plate 300 and the functional sheet 200 .

[0107] According to some optional embodiments, Figures 8-13 As shown, the loading mechanism 30 is also provided with a second hopper 35 connected to the mounting platform. The second hopper 35 has an internal receiving cavity for stacking functional sheets 200. The top of the second hopper 35 is provided with a discharge port, and the bottom of the second hopper 35 is provided with a discharge port. The second hopper 35 is provided as a whole above the second preparation platform 50, and the discharge port is directly opposite the middle position of the top surface of the second preparation platform 50. A second gap 351 for discharging is formed between the discharge port provided at the bottom of the second hopper 35 and the top surface of the second preparation platform 50, so that the second loading arm 34 can smoothly pass through the second gap 351 during the lateral movement and push the functional sheet 200 supported on the top surface of the second preparation platform 50 to move and finally transfer it to the top surface of the mounting platform 60 on the corresponding side.

[0108] In this embodiment, the second hopper 35 above the second material preparation platform 50 can provide the functional slices 200 to the second material preparation platform 50 in a timely and continuous manner, ensuring a continuous and stable loading process.

[0109] According to some optional embodiments, Figure 4 、 Figure 5 、 Figures 8-11 As shown, the touch screen side coating equipment 100 is provided with a discharge arm 81 on the top surface of the placement platform 60. The discharge arm 81 is fixedly connected to the first loading arm 31 and the second loading arm 34 via a connecting rod, so that it can move back and forth synchronously under the drive of the traverse device 32. During the lateral movement, the discharge arm 81 can push the touch screen 400 that has been placed on the top surface of the placement platform 60 off the top surface of the placement platform 60 to complete the discharge.

[0110] In some embodiments, when a set of dispensing equipment 20 is provided on each side of the first preparation table 10 in the horizontal direction, a mounting platform 60 is also provided on each side of the second preparation table 50 in the horizontal direction. While the first loading arm 31 and the second loading arm 34 are loading materials in both directions in the horizontal direction, the two unloading arms 81 can also complete a single-sided unloading of the touch screen 400 respectively.

[0111] In this embodiment, since the first loading arm 31, the second loading arm 34 and the unloading arm 81 can move back and forth synchronously laterally, each time the first loading arm 31 and the second loading arm 34 complete a loading action, the unloading arm 81 can synchronously complete a unloading action on the touch screen 400, that is, the loading action and the unloading action are performed synchronously, and one reciprocating stroke can complete two loading actions and two unloading actions, which can increase the production utilization rate of touch screen mounting.

[0112] According to some optional embodiments, Figure 10-12 As shown, the placement platform 60 is entirely disposed below the second material preparation platform 50, creating a height difference between the placement platform 60 and the second material preparation platform 50. This allows the touch screen 400 to be unloaded using the gap created by the height difference between the placement platform 60 and the second material preparation platform 50. This allows the placement platform 60 and the second material preparation platform 50 to be more compactly positioned horizontally compared to a situation where only a horizontal distance between the placement platform 60 and the second material preparation platform 50 serves as the unloading gap.

[0113] According to some optional embodiments, in order to improve the lamination quality of the touch screen 400, as shown in FIG. Figure 4-Figure 7 、 Figure 10 and Figure 11 As shown, a pressure roller assembly 70 connected to the mounting platform is suspended above the placement platform 60. The pressure roller assembly 70 is located entirely on the unloading side of the placement platform 60. The pressure roller assembly 70 includes a wheel frame 71 and a pressure roller 72 connected to the wheel frame 71. The rotating shaft of the pressure roller 72 is arranged horizontally and longitudinally. The wheel frame 71 is connected to the mounting platform or to the second material preparation platform 50.

[0114] The pressure roller 72 is positioned entirely above the corresponding mounting platform 60, forming a third gap 76 with the top of the corresponding mounting platform 60. The height of the third gap 76 is less than the thickness of the touch screen 400, but the third gap 76 allows the touch screen 400 to pass through, allowing the pressure roller 72 to roll downward on the top surface of the touch screen 400. When the touch screen 400 passes through the third gap 76, the cover plate 300 constituting the touch screen 400 comes into contact with the pressure roller 72. The cover plate 300 is slightly pressed toward the functional sheet 200, smoothing the optical adhesive layer between the cover plate 300 and the functional sheet 200, thereby ensuring a more uniform bonding between the cover plate 300 and the functional sheet 200.

[0115] The wheel surface of the pressure roller 72 may be made of rubber, which allows a certain surface deformation when rolling the touch screen 400 .

[0116] In this embodiment, a pressure roller assembly 70 is disposed above the mounting platform 60, so that the touch screen 400 must pass under the pressure roller 72 during the unloading process to complete the unloading process. Thus, the unloading arm 81 pushes the touch screen 400 during the unloading process, and the pressure roller 72 can roll the touch screen 400, thereby simultaneously improving the bonding quality between the functional sheet 200 and the cover plate 300 when unloading is completed. In particular, during the rolling process of the pressure roller 72 on the touch screen 400, the dot-shaped adhesive blocks 502 can provide a certain degree of support for the cover plate 300, maintaining the tilt of the cover plate 300 and allowing the liquid adhesive layer 503 on the inside to flow evenly to the surrounding area.

[0117] In some embodiments, as Figure 5 、 Figure 7 、 Figure 11 and Figure 13 As shown, the pressure roller assembly 70 adopts a unidirectional rotation form. Specifically, a ratchet 73 is installed on the shaft end of the pressure roller 72, and a pawl 74 that cooperates with the ratchet is installed on one side of the wheel frame 71, so that the pressure roller 72 and the wheel frame 71 are connected through the ratchet mechanism to have unidirectional rotation capability.

[0118] The unidirectional rotation direction of the pressing roller 72 is manifested as follows: when the unloading arm 81 is unloading the touch screen 400 , the pressing roller 72 can contact the top surface of the touch screen 400 and rotate.

[0119] In this embodiment, if the touch screen 400 is not completely separated from the corresponding discharge arm 81 and returns along with the discharge arm 81, the pressure roller 72 will stop rotating and push the touch screen 400, so that the touch screen 400 is separated from the discharge arm 81 and discharged smoothly.

[0120] In some embodiments, such as Figure 7 、 Figure 9 and Figure 13 As shown, a buffer spring 75 is provided between the wheel frame 71 and the connected component. The buffer spring 75 can provide downward pressure for the pressure roller 72 so that the pressure roller 72 can improve the fit with the cover plate 300 of the touch screen 400 .

[0121] In some embodiments, such as Figure 5-Figure 13 As shown, while the pressure roller assembly 70 is unidirectionally rotatable, the jig 62 of the placement platform 60 is specifically modified to be movably mounted on the support 61. Furthermore, the jig 62 is fixedly connected to the unloading arm 81, allowing it to move laterally in tandem with the unloading arm 81. This ensures that the jig 62 provides constant bottom support for the touch screen 400 during unloading, improving the quality of the pressure roller 72's rolling action on the touch screen 400 and, consequently, the quality of the bonding process.

[0122] like Figure 9As shown, the unloading arm 81 and the fixture 62 are provided with airway grooves, and an airway is formed between them after they are matched. The airway and the matching part together constitute a lateral negative pressure suction port 624 for sucking the functional sheet 200 to put it in the correct position.

[0123] According to some optional embodiments, Figure 4-13 As shown, the side coating equipment 100 for touch screen processing is provided with a longitudinally arranged output conveyor belt 90 directly below the second preparation table 50, and the opposite sides of the output conveyor belt 90 in the horizontal direction are connected to the unloading side of the mounting platform 60 on the corresponding side to receive the touch screen 400 unloaded from the mounting platform 60.

[0124] According to some optional embodiments, the side coating equipment 100 for touch screen processing is also provided with a curing device, which is arranged at a downstream position of the mounting platform 60 and at the output conveyor belt 90, and is used to completely cure the dot-shaped glue blocks 502 and the liquid glue layer 503 of the touch screen 400.

[0125] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0126] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0127] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A side coating device for touch screen processing, characterized by: include: A glue dispensing device (20), comprising a conveying line (21) and a glue dispensing machine (22), a pre-curing device (23) and a glue coating machine (24) arranged in sequence along the conveying direction of the conveying line (21); The conveying line (21) is used to receive and convey the cover plate (300) along its conveying direction; The glue dispenser (22) is arranged corresponding to the glue dispensing area of ​​the conveyor line (21) to apply a plurality of spaced-apart liquid glue spots (501) to the upper surface of the cover plate (300) passing through the glue dispensing area, wherein the glue spots (501) include a circle of dotted wall portions formed on the upper surface of the cover plate (300) and close to the edge of the cover plate (300) and a portion located within the dotted wall portions; The pre-curing device (23) is provided corresponding to the pre-curing area of ​​the conveying line (21) to convert all the dot-shaped adhesive spots (501) on the cover plate (300) passing through the pre-curing area into semi-solid dot-shaped adhesive blocks (502); The glue coating machine (24) is arranged corresponding to the glue coating area of ​​the conveyor line (21) to apply a liquid glue layer (503) connected to at least part of the dot-shaped glue blocks (502) to the upper surface of the cover plate (300) passing through the glue coating area.

2. The side coating equipment for touch screen processing according to claim 1, characterized in that: The side coating equipment (100) for processing a touch screen further comprises a first material preparation platform (10) and a loading mechanism (30), wherein the top surface of the first material preparation platform (10) is used to place a cover plate (300), and the first material preparation platform (10) is located to the side of the dispensing area of ​​the conveyor line (21); The loading mechanism (30) includes a first loading arm (31) and a transverse movement device (32) connected to each other. The first loading arm (31) is movably arranged on the top surface of the first material preparation platform (10). The transverse movement device (32) is used to drive the first loading arm (31) to move back and forth in the transverse direction to push the cover plate (300) located on the top surface of the first material preparation platform (10) to the dispensing area of ​​the conveyor line (21) on the corresponding side.

3. The side coating equipment for touch screen processing according to claim 2, characterized in that: A set of the glue dispensing equipment (20) is provided on each of the two opposite sides in the transverse direction of the first material preparation table (10); and / or, the conveying line (21) is arranged longitudinally; And / or, the loading mechanism (30) includes a first hopper (33) arranged above the first material preparation platform (10), a discharge port is provided at the bottom of the first hopper (33), and a first gap (331) for discharging material is formed between the first hopper (33) and the top surface of the first material preparation platform (10).

4. The side coating equipment for touch screen processing according to claim 2, characterized in that: The dispensing device (20) further comprises a tail tray (25) arranged at the end of the conveying direction of the conveying line (21) for receiving the cover plate (300) output by the conveying line (21), and a positioning groove (251) for positioning the cover plate (300) is provided on the top surface of the tail tray (25).

5. The side coating equipment for touch screen processing according to claim 4, characterized in that: The positioning groove (251) is provided with a negative pressure suction port (254) for adsorbing the side of the cover plate (300) on the end groove wall along the conveying direction of the conveying line (21); And / or, the tail end tray (25) is arranged to be tilted downward along the conveying direction of the conveying line (21).

6. A side coating device for touch screen processing according to claim 4 or 5, characterized in that: The invention also includes a flipping mechanism (40) connected to the tail end tray (25), wherein the flipping mechanism (40) includes a flip plate (41), a flipping motor (42) connected to the flip plate (41), and a negative pressure suction cup (43) arranged in an array on the flip plate (41), wherein the flip plate (41) and the negative pressure suction cup (43) are located below the tail end tray (25) and the negative pressure suction cup (43) faces upward and corresponds to an opening (255) provided in the middle of the tail end tray (25), wherein the flipping motor (42) can drive the flip plate (41) and the negative pressure suction cup (43) upward through the opening (255).

7. The side coating equipment for touch screen processing according to claim 6, characterized in that: It also includes a second material preparation platform (50) and a mounting platform (60), wherein the top surfaces of the second material preparation platform (50) and the mounting platform (60) are both used to place the functional sheet (200), and the mounting platform (60) is connected to the flip mechanism (40) to receive the cover plate (300); The loading mechanism (30) further includes a second loading arm (34) connected to the transverse movement device (32), the second loading arm (34) being fixedly connected to the first loading arm (31) and movably arranged on the top surface of the second preparation table (50), and the transverse movement device (32) being used to drive the second loading arm (34) to move back and forth in the transverse direction to push the functional sheet (200) located on the top surface of the second preparation table (50) to the top surface of the mounting platform (60) on the corresponding side.

8. The side coating equipment for touch screen processing according to claim 7, characterized in that: The loading mechanism (30) comprises a second hopper (35) arranged above the second material preparation platform (50), wherein a discharge port is provided at the bottom of the second hopper (35) and a second gap (351) for discharging material is formed between the second hopper (35) and the top surface of the second material preparation platform (50).

9. The side coating equipment for touch screen processing according to claim 1, characterized in that: The pre-curing device (23) is configured as a light-curing device for semi-curing the dot-shaped adhesive spots (501) into the dot-shaped adhesive blocks (502) by irradiating them with light, or is configured as a heat-curing device for semi-curing the dot-shaped adhesive spots (501) into the dot-shaped adhesive blocks (502) by heating them.

10. The side coating equipment for touch screen processing according to claim 1, characterized in that: The glue dispensing machine (22) comprises a first three-axis slide (221) and a dot-shaped glue dispensing head (222) mounted on the output end of the first three-axis slide (221); The glue coating machine (24) comprises a second three-axis slide (241) and a strip-shaped glue dispensing head (242) mounted at the output end of the second three-axis slide (241) or a plurality of glue dispensing heads arranged side by side with glue outlets in the shape of dots.

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