Automatic glue coating device and automatic glue coating method for article frame UV glue composite layer

Abstract

The present application provides an automatic glue coating device and method for object frame UV glue complex layer, which comprises a glue coating detection platform for positioning the object to be coated with glue and defining a glue coating path on the object frame, and a work head capable of three-dimensional movement for carrying multiple glue coating heads, at least one curing lamp and a three-micro scanner to sequentially perform the processes of dispensing glue, curing the glue into glue particles, coating soft glue and curing the soft glue into a soft glue layer on the object frame, thereby ensuring the consistency of the UV glue complex layer coated on the object frame. In particular, the eccentric rotation principle is used to correct the problem of easy generation of glue layer hump at the corner of the frame and insufficient curing light, thereby improving the coating qualification rate of the UV glue complex layer.

Description

Technical Field

[0001] This invention relates to the coating technology of multilayer adhesives, wherein the multilayer adhesive comprises a plurality of granular adhesive particles spaced apart, and a soft adhesive bonded to the adhesive particles, and particularly relates to an automatic adhesive coating device and method for a UV adhesive multilayer coating of an object frame. Background Technology

[0002] Most products are assembled from a variety of objects (or components or accessories). Since the materials of these objects are not entirely the same, adhesive materials are often used as bonding layers during assembly to ensure that components with different material properties can be firmly bonded together.

[0003] For example Figure 1 In typical television or computer products, a glass panel 93, serving as a diffuser, must be assembled onto the bezel 92 surrounding a back cover 91. Since the back cover 91 is usually made of adhesive, its material properties are drastically different from the glass panel 93. Assemblers typically use double-sided adhesive tape 94 as the bonding material between the back cover 91 and the glass panel 93. However, when facing the limited width of the bezel 92 around the back cover 91, and when the bezel 92 has significant contour variations, the controllability of applying the tape 94 to the bezel 92 and the tightness of the adhesion between the two components are not ideal.

[0004] Furthermore, it can be seen that assemblers use UV adhesive as an adhesive between two objects with different material properties (such as the back cover 91 and the glass panel 93 mentioned above). Because UV adhesive is applied to the bonding surface of the objects in a viscous form, it offers better controllability for bonding surfaces with large contours (such as the frame of the back cover 91 mentioned above). Moreover, UV adhesive provides better bonding strength than tape 94 when bonding objects with different material properties. Therefore, the industry has gradually replaced double-sided tape with UV adhesive as an adhesive, for example, between the back cover 91 and the glass panel 93. After the UV adhesive is applied to the bonding surface, it must be cured and set by ultraviolet (UV) light before the objects to be bonded are adhered.

[0005] Because some product components require a specific shock-absorbing gap when bonded together, existing UV adhesives offer users a variety of options based on their varying hardness after curing, helping to maintain this specific shock-absorbing gap between the adhesive surfaces of the two parts. Therefore, in bonding applications requiring a shock-absorbing gap, manufacturers often use multi-layered UV adhesives instead of double-sided tape.

[0006] Furthermore, such as Figure 2As shown, existing technologies have considered using a relatively viscous UV adhesive to create spherical adhesive particles 95. These particles are pre-applied in a spaced manner to, for example, the frame 92 (i.e., the adhesive surface) of the back cover 91 described above. The adhesive particles 95 are then cured and shaped by UV light. Subsequently, a relatively thin UV soft adhesive 96 is applied in a planar form to the frame 92 (i.e., the adhesive surface), so that the UV soft adhesive 96 is bonded to the adhesive particles 95 and evenly adhered to the entire frame 92 (i.e., the adhesive surface). The UV soft adhesive 96 is then cured by UV light to facilitate adhesion and secure bonding of the corresponding edges around the glass panel 93. The adhesive particles 95 create a specific shock-absorbing gap between the two joined objects, while the soft adhesive 96 provides sufficient viscosity and adhesion to cover the adhesive particles 95 and securely bond the two objects.

[0007] However, in the face of Figure 2 When applying the aforementioned UV adhesive layer to the finite-width border 92, it is also necessary to consider avoiding adhesive overflow defects when the two objects are bonded. Therefore, the application of the UV adhesive layer composed of adhesive particles 95 and soft adhesive 93 must be very precise. In particular, when applying the soft adhesive 93 at the corners of the border 93, regardless of whether adhesive particles 95 are present at the corners, it must be ensured that the amount of soft adhesive 93 applied at the corners and the height of the layer after covering the adhesive particles 95 are consistent with that at the border 92. However, currently, existing adhesive application technology uses manual or semi-automated methods with relatively low production efficiency, and the adhesive application qualification rate for the aforementioned layer is still unsatisfactory, so it is urgent to improve it.

[0008] Furthermore, since the irradiation time, angle, and intensity of UV light have a significant impact on the curing effect of UV adhesives, although there are already automatic adhesive application technologies, it is still difficult to provide a good uniform curing strategy for the UV light irradiation process after UV adhesive application, which will be explained in detail. Summary of the Invention

[0009] Therefore, the present invention aims to propose improvement strategies to address the aforementioned shortcomings of the prior art.

[0010] In a preferred embodiment, the present invention provides an automatic adhesive coating device for a UV adhesive layer on an object frame, characterized in that it comprises:

[0011] A glue application detection platform is used to locate an object to be glued, the object being surrounded by a frame to form a glue application path, and the glue application path passing through at least one corner of the frame.

[0012] A working head is configured to move in three dimensions on the adhesive application testing platform. The working head has a base frame and a rotating seat. A rotator is configured on the base frame to drive the rotating seat to rotate around a rotation center. The rotating seat is configured with a first adhesive application head, a second adhesive application head, and at least one curing lamp located around the first adhesive application head and the second adhesive application head.

[0013] in:

[0014] The first glue applicator is located at the rotation center, and the second glue applicator is located at a glue applicator eccentric position next to the first glue applicator, separated by a glue applicator eccentric distance.

[0015] At least one of the curing lamps includes a linear curing lamp that provides linear light to illuminate the frame and at least one of the frame corners. The linear curing lamp is located at an off-center position next to the first applicator at a distance of one off-center projection distance. The linear curing lamp has a light emission width that is greater than the off-center projection distance. The glue supply direction of the first applicator and the second applicator is the same as the projection direction of the linear curing lamp.

[0016] The automatic adhesive coating device for the UV adhesive layer on the object frame includes a working head that is driven by a three-dimensional drive mechanism to move in three dimensions, the three-dimensional drive mechanism being arranged around the adhesive coating detection platform.

[0017] The automatic adhesive application device for the UV adhesive layer of the object frame includes: the UV adhesive layer is composed of a plurality of spaced adhesive particles surrounded by a layer of soft adhesive; the plurality of adhesive particles are applied to the frame at intervals by the first adhesive application head; and the soft adhesive is continuously applied to the plurality of adhesive particles in a planar manner by the second adhesive application head and adheres to the frame.

[0018] The automatic adhesive coating device for the UV adhesive layer on the object frame includes a rotating base equipped with a three-dimensional scanner. The working head drives the three-dimensional scanner to perform dynamic scanning of the frame and frame corners before adhesive coating to obtain the adhesive coating path. The working head also drives the three-dimensional scanner to perform dynamic scanning of the frame and frame corners after adhesive coating to determine the coating quality of the UV adhesive layer.

[0019] The automatic adhesive application device for the UV adhesive coating of the object frame includes at least one curing lamp that further comprises a plurality of dot-shaped curing lamps capable of projecting dot-shaped light rays, and the plurality of dot-shaped curing lamps are arranged at intervals around the first adhesive application head along a plane rectangular coordinate direction.

[0020] The automatic adhesive application device for the UV adhesive coating of the object frame, wherein: the point-to-point projection distance of the plurality of point-shaped curing lamps relative to the first adhesive application head on the Cartesian coordinate plane is smaller than the projection eccentricity distance of the line-shaped curing lamps.

[0021] The automatic adhesive coating device for the UV adhesive layer on the object frame, wherein: the linear curing lamp is located between the first coating head and the second coating head, such that the projection eccentricity of the linear curing lamp is smaller than the coating eccentricity of the second coating head.

[0022] An automatic adhesive coating method for a UV adhesive layer on the edge of an object, characterized by comprising sequentially performing the following steps (1) to (4):

[0023] Step (1): Detect a glue application path on the object's border;

[0024] Step (2): A first dispensing head and at least one curing lamp are carried and move step by step along the dispensing path of the object frame, and the first dispensing head is driven to apply multiple dots of glue to the object frame at intervals, so that at least one curing lamp follows behind the first dispensing head to illuminate and cure the multiple dots of glue into multiple glue particles.

[0025] Step (3): Detect the distribution position of the multiple adhesive particles on the object's edge;

[0026] Step (4): Drive the second coating head to apply a soft glue to the object frame with multiple glue particles in a continuous moving manner, so that the soft glue covers the multiple glue particles in a surface form and adheres to the object frame and at least one of the frame corners, and let at least one curing lamp follow behind the second coating head to illuminate and cure the soft glue into a soft glue layer.

[0027] The object frame includes at least one frame corner located on the adhesive application path. When the second adhesive application head encounters at least one of the frame corners, it applies the soft adhesive to the frame corner in an eccentric rotation with the first adhesive application head as the rotation center. At least one of the curing lamps provides a linear light beam with a light emission width in an eccentric rotation with the first adhesive application head as the rotation center, illuminating the soft adhesive on the frame corner during the eccentric rotation.

[0028] The automatic adhesive application method for the UV adhesive layer on the object frame includes: the first adhesive application head, the second adhesive application head, and at least one curing lamp are carried by a three-dimensionally movable working head, and perform three-dimensional stepping movement, continuous movement, and eccentric rotation.

[0029] The automatic adhesive application method for the UV adhesive layer on the object's border includes a working head that also includes a three-dimensional scanner, which is responsible for detecting the adhesive application path and the distribution positions of the multiple adhesive particles.

[0030] The automatic adhesive application method for the UV adhesive layer on the object frame, wherein: the second adhesive application head is located at an off-center position next to the first adhesive application head at an off-center distance of one adhesive application eccentricity; at least one of the curing lamps is a linear curing lamp, which is located at an off-center position next to the first adhesive application head at an off-center distance of one projection eccentricity; and the light emission width is greater than the projection eccentricity.

[0031] The automatic adhesive coating method for the UV adhesive layer on the object frame includes: at least one of the curing lamps further comprising a plurality of dot-shaped curing lamps capable of projecting dot-shaped light, and the plurality of dot-shaped curing lamps being spaced apart around the first coating head along a plane rectangular coordinate direction, and the plurality of adhesive particles being cured by light projected behind the first coating head via the plurality of dot-shaped curing lamps.

[0032] The automatic adhesive application method for the UV adhesive layer on the object frame, wherein: the dot-shaped curing lamps have a dot-shaped projection spacing relative to the first adhesive application head on the Cartesian coordinate plane that is smaller than the projection eccentricity spacing of the linear curing lamps.

[0033] The automatic adhesive coating method for the UV adhesive layer on the object frame includes: the three-dimensional scanner also dynamically scans the object frame after adhesive coating to determine the coating quality of the UV adhesive layer.

[0034] Based on the above-described application apparatus, the present invention can also be further divided into an automatic application method for a UV adhesive layer on the edge of an object, comprising sequentially performing the following steps (1) to (4):

[0035] (1) Detect a gluing path on the object's frame; (2) Carry a first gluing head and at least one curing lamp to follow the gluing path of the object's frame and move step by step, and drive the first gluing head to apply multiple dots of glue to the object's frame at intervals, so that at least one curing lamp follows behind the first gluing head to illuminate and cure the multiple dots of glue into multiple glue particles; (3) Detect the distribution position of the multiple glue particles on the object's frame; (4) Drive the second gluing head to apply a soft glue in a continuous moving manner to the object's frame with multiple glue particles in a linear manner, so that the soft glue covers the multiple glue particles in a planar form and The adhesive is applied to the object's frame and at least one of the frame corners, and at least one curing lamp follows behind the second applicator to cure the soft adhesive into a soft adhesive layer; wherein, the object's frame includes at least one frame corner located on the adhesive application path, and when the second applicator encounters at least one of the frame corners, it applies the soft adhesive to the frame corner in an eccentric rotation with the first applicator as the center of rotation, and at least one curing lamp provides a linear light beam with a light-emitting width to illuminate the soft adhesive on the frame corner during the eccentric rotation with the first applicator as the center of rotation.

[0036] In a further embodiment of the method, the first coating head, the second coating head, and at least one of the curing lamps are carried by a three-dimensionally movable working head, and perform three-dimensional stepping movement, continuous movement, and eccentric rotation.

[0037] In a further embodiment of the method, the working head also includes a three-dimensional scanner, which performs the detection of the adhesive application path and the detection of the distribution positions of the multiple adhesive particles.

[0038] In a further embodiment of the method, the second coating head is located at a coating eccentric position next to the first coating head at a distance of one coating eccentric spacing, and at least one of the curing lamps is a linear curing lamp, which is located at a light projection eccentric position next to the first coating head at a distance of one light projection eccentric spacing, and the light emission width is greater than the light projection eccentric spacing.

[0039] In a further embodiment of the method, at least one of the curing lamps also includes a plurality of dot-shaped curing lamps capable of projecting dot-shaped light, and the plurality of dot-shaped curing lamps are spaced apart around the first coating head along a plane rectangular coordinate direction, and the plurality of adhesive particles are followed by the plurality of dot-shaped curing lamps and cured by light projection behind the first coating head.

[0040] In a further implementation of this method, the dot-shaped curing lamps have a dot-shaped projection spacing relative to the first coating head on the Cartesian coordinate plane that is smaller than the projection eccentricity spacing of the linear curing lamps.

[0041] In a further implementation of this method, the 3D scanner also performs a dynamic scan of the object's border after the adhesive has been applied to determine the coating quality of the UV adhesive layer.

[0042] Based on the above embodiments, the technical effects that this invention can achieve are: simplifying the UV adhesive coating process on the object's frame, and using the eccentric rotation principle to correct the problems of easy formation of adhesive layer bumps and insufficient curing light at the frame corners, ensuring that the width and thickness of the UV adhesive coating on the object's frame corners are consistent with the UV adhesive coating on the straight frame, thereby realizing automated coating and defect detection of the UV adhesive coating, and thus improving the coating pass rate of the UV adhesive coating.

[0043] Therefore, please refer further to the detailed embodiments and drawings described below to demonstrate the feasibility of the present invention and the practicality of its technical effects. Attached Figure Description

[0044] Figure 1 This is a partial cross-sectional view of two objects traditionally attached with tape.

[0045] Figure 2 This is a partial cross-sectional view of two objects traditionally bonded together with UV adhesive.

[0046] Figure 3 This is a three-dimensional schematic diagram of the automatic glue application device of the present invention.

[0047] Figure 4 This is a three-dimensional schematic diagram of the object to be coated with adhesive according to the present invention.

[0048] Figure 5 for Figure 3 A magnified 3D schematic diagram of the glue applicator.

[0049] Figure 6 for Figure 5 The image shows a bottom view of the glue applicator.

[0050] Figure 7 for Figure 6 The diagram shows the relative positions of the first applicator head, the second applicator head, and the curing lamp.

[0051] Figure 8 A block diagram illustrating the steps of the automatic adhesive application method of the present invention.

[0052] Figure 9 for Figure 8 The diagram shown is a top view of the object's frame after it has been coated with adhesive and cured into adhesive particles.

[0053] Figure 10 for Figure 8 The diagram shows the oscillating and tracking motion of the applicator head and curing lamp when applying soft adhesive to the corner of the frame during the steps shown.

[0054] Figure 11 To complete Figure 8 A partial cross-sectional view of the UV adhesive coating on the object's frame after the steps shown.

[0055] Explanation of reference numerals in the attached drawings: 10-Glue application inspection platform; 20-Working head; 21-Base frame; 22-Rotating seat; 23-Rotator; 29-Rotation center; 30-Three-dimensional drive mechanism; 31-X-axis drive slide; 32-Y-axis drive slide; 33-Z-axis drive slide; 41-First glue application head; 42-Second glue application head; 43-Curing lamp; 431-Linear curing lamp; 432-Dot curing lamp; 50-Three-dimensional scanning Components; 91-Back cover (or object to be glued); 92-Frame; 921-Straight frame; 922-Frame corner; 93-Glass panel (or object to be glued); 94-Adhesive tape; 95-Glue granules; 96-Soft glue; 99-Glue application path; L1-Glue application eccentricity distance; L2-Light projection eccentricity distance; L3-Dotted light projection distance; P1-Glue application eccentricity position; P2-Light projection eccentricity position; S1 to S4-Step instructions. Detailed Implementation

[0056] The present invention aims to automate the application of adhesive to objects, using... Figure 2Taking the back cover 91 of a typical television or computer product as an example, this paper explains that before the glass panel 93 is attached to the back cover 91, an automatic adhesive application technique must be applied to the frame 92 of the back cover 91.

[0057] Therefore, please refer to both documents together first. Figure 3 and Figure 4 ;in, Figure 3 This invention discloses the overall appearance of the automatic glue-applying device, used to apply glue to the edge 92 of an object as shown in the figure. Figure 2 The adhesive particles 95 and soft adhesive 96 shown form a UV adhesive layer on the frame 92; Figure 4 This further reveals the three-dimensional appearance of the rear shell 91 (i.e., the object to be glued) to which the automatic glue applicator is to apply glue. Additionally, as shown... Figure 2 As shown, the UV adhesive layer is composed of a layer of soft adhesive 96 covering the periphery of a plurality of spaced adhesive particles 95 on the frame 92.

[0058] like Figure 3 As shown, the automatic glue application device includes a three-dimensionally movable working head 20 configured on a glue application detection platform 10; wherein, the glue application detection platform 10 is used to position such as Figure 4 The back cover 91 shown has a frame 92 around its perimeter to be coated with adhesive. The frame 92 can be formed by multiple straight frame 921 of unspecified height and multiple frame corners 922 to form an adhesive application path 99. The adhesive application path 99 can be automatically scanned and detected by the automatic adhesive application device of the present invention (details to follow) or can be known by the user in advance.

[0059] Please match Figure 3 and Figure 5 As shown, the working head 20 has a base frame 21 and a rotating seat 22. The base frame 21 is positioned on a three-dimensional drive mechanism 30, which is arranged around the adhesive application detection platform 10 and includes an X-axis drive slide 31, a Y-axis drive slide 32, and a Z-axis drive slide 33 that are interconnected and driven by each other. The base frame 21 is positioned on the Z-axis drive slide 33 and moves under the drive of the three-dimensional drive mechanism 30. A rotary actuator 23, made of a motor or rotary cylinder, is disposed on the base frame 21, and the rotating seat 22 is axially connected to the base frame 21 via the rotary actuator 23, so that the rotary actuator 23 can drive the rotating seat 22 to rotate along the XY coordinate plane by a required angle on the base frame 21, while maintaining a rotation center 29 for the rotating seat 22. Please refer to [link to relevant documentation]. Figure 7 As shown, the position of the rotation center 29 is revealed.

[0060] Please further pair it. Figure 6 and Figure 7As shown, the rotating base 22 is configured with a first adhesive applicator 41, a second adhesive applicator 42, and at least one curing lamp 43 located around the first and second adhesive applicators 41 and 42. The first and second adhesive applicators 41 and 42 are respectively connected to adhesive cartridges (not shown) capable of being filled with UV adhesive, so that UV adhesive can be applied to the back cover 91 (i.e., the object to be coated). Furthermore, in this embodiment, the first adhesive applicator 41 is specifically responsible for applying adhesive to the frame 92 (including the straight frame 921 and the frame corner 922) at intervals, thus forming... Figure 2 The frame 92 shown has multiple spaced adhesive particles 95; the second adhesive applicator 42 is specifically responsible for continuously applying linear (or planar) UV adhesive to the frame 92 (including the straight frame 921 and the frame corner 922), thus forming... Figure 2 The frame 92 shown is covered with a plurality of adhesive particles 95 in a line or surface form and the soft adhesive 96 (or soft adhesive layer) is attached to the frame 92; at least one of the curing lamps 43 may include a line curing lamp 431 extending along a straight track 431 to provide linear light to illuminate the frame 92 (including the straight frame 921 and the frame corner 922).

[0061] Furthermore, the first adhesive applicator 41 is located at the rotation center 29, the second adhesive applicator 42 is located at an off-center position P1 next to the first adhesive applicator 41 with an off-center adhesive applicator distance L1, and the linear curing lamp 431 is located at an off-center projection position P2 next to the first adhesive applicator 41 with an off-center projection distance L2. In addition, the linear curing lamp 431 can be perpendicular (or not collinear) to the line connecting the off-center adhesive applicator P1 and the rotation center 29; thereby, the linear curing lamp 431 has a linear light emission width W, and the light emission width W is greater than the off-center projection distance L2; wherein, the adhesive supply direction of the first adhesive applicator 41 and the second adhesive applicator 42 is the same as the projection direction of the linear curing lamp 431.

[0062] In addition, as Figure 3 , Figure 5 and Figure 6 As shown, a commercially available 3D scanner 50 can also be configured on the rotating base 22. The working head 20 can drive the 3D scanner 50 to perform a dynamic scan of the frame 92 (including the straight frame 921 and the frame corner 922) before applying adhesive, in order to obtain... Figure 4 The adhesive application path 99 is shown; furthermore, the working head 20 can also drive the three-dimensional scanner 50 to dynamically scan the frame 92 after adhesive application, in order to determine the coating quality of the UV adhesive layer.

[0063] Furthermore, as in Figure 6 and Figure 7As shown, the curing lamp 43 of the present invention further includes a plurality of dot-shaped curing lamps 432 capable of projecting dot-shaped light rays, and the plurality of dot-shaped curing lamps 432 are spaced apart around the first coating head 41 along a direction of a Cartesian coordinate plane. Figure 7 The text reveals that the planar rectangular coordinates are located on the XY axis. Furthermore, the plurality of dot-shaped curing lamps 432 can be arranged at intervals along the X-axis and Y-axis coordinate lines, thus surrounding the first adhesive applicator 41; wherein, the X-axis and Y-axis coordinate lines can be defined as the adhesive application path of the first adhesive applicator 41 (or the first adhesive applicator 41 and the second adhesive applicator 42) following the adhesive application path 99.

[0064] Furthermore, the dot-shaped curing lamps 432 can have a dot-shaped projection spacing L3 relative to the first applicator head 41 on the Cartesian coordinate plane that is smaller than the projection eccentricity spacing L2 of the linear curing lamps 431. This is intended to allow each dot-shaped curing lamp 432 to follow the first applicator head 41 with a closer dot-shaped projection spacing L3, so that after the first applicator head 41 applies adhesive to the frame 92, the dot-shaped curing lamps 432 can immediately irradiate the adhesive particles 95 formed by the application with UV light, allowing the adhesive particles 95 to cure and set quickly. In this implementation, the linear curing lamp 431 is specifically responsible for irradiating the soft adhesive 96 applied to the frame 92 by the second applicator head 42 with UV light, allowing the soft adhesive 96 to cure rapidly, forming a soft adhesive layer covering the frame 92 and the adhesive particles 95.

[0065] Based on the implementation details disclosed in the above-described automatic adhesive application apparatus of the present invention, the automatic adhesive application method for a UV adhesive coating on an object frame provided by the present invention can be further verified. Please refer to section 8 for a description of the automatic adhesive application method, which includes performing the following steps S1 to S4 in sequence:

[0066] Step S1: Detect the glue application path of the object's border.

[0067] Specifically, in this step, the working head 20 of the automatic glue application device, which has three-dimensional movement capabilities (such as...), can be used... Figures 3 to 6 As shown), the first applicator head 41, the second applicator head 42, at least one of the curing lamps 43 (including linear curing lamps 431 and / or dot curing lamps 432), and the 3D scanner 50 move together along the applicator path 99 of the object frame 92 (including straight frame 921 and frame corner 922) (as shown). Figure 4(As shown). Because the working head 20 has three-dimensional movement capability, when the straight edge 921 and multiple edge corners 922 of the object's edge 92 have different height differences, the working head 20 can be driven by the three-dimensional drive mechanism 30 to allow the three-dimensional scanner 50 to accurately follow the movement of the straight edge 921 and multiple edge corners 922, thereby detecting the adhesive application path 99. In addition, the three-dimensional scanner 50 can also be carried separately by another working head to complete the detection step of the adhesive application path 99; or, the control system can preset the adhesive application path 99 in advance according to the contour shape of the object's edge 92, all of which are within the scope of the technology that can be applied and replaced by this invention.

[0068] Step S2: Apply adhesive at intervals and cure the adhesive particles.

[0069] Specifically, in this step, after the first adhesive applicator 41 reaches the starting point of the adhesive application path 99 (predetermined by the control system), the first adhesive applicator 41 is driven to perform adhesive dispensing on the frame 92. The dispensing refers to the process of applying multiple adhesive particles 95 to the frame 92 at intervals. During the interval between applying each adhesive particle 95, the first adhesive applicator 41 moves stepwise along the adhesive application path 99. At this time, at least one curing lamp 43 (including linear curing lamp 431 and / or dot curing lamp 432) follows behind the first adhesive applicator 41 at intervals of the projection eccentricity distance L2 or the dot projection distance L3 (e.g., ...). Figure 7 (As shown) the stepping movement is such that multiple adhesive particles 95 can be rapidly illuminated and cured. In this invention, when the linear curing lamp 431 and the dot curing lamp 432 are configured simultaneously, the curing of the adhesive particles 95 is performed by the dot curing lamp 432, which is spaced from the first coating head 41 by a dot illumination distance L3.

[0070] Step S3: Determine the distribution location of the colloidal particles.

[0071] Specifically, this step can utilize the working head 20 to carry the moving 3D scanner 50 to perform the process of detecting the distribution position of adhesive particles; in other words, after the first coating head 41 and the curing lamp 43 (e.g., a dotted curing lamp 432) jointly complete the process of dispensing adhesive along the coating path 99 of an object frame 92 and curing the dispensing adhesive into adhesive particles 95, the working head 20 can again follow the coating path 99 of the object frame 92 (including straight frame 921 and frame corner 922) to scan the distribution position of the adhesive particles 95 spaced apart on the object frame 92. The distribution position of the adhesive particles 95 includes information on the actual positions of those with adhesive particles 95 and those without (e.g., ...). Figure 9 (As shown). In addition, the three-dimensional scanner 50 can also be carried separately by another working head to complete this step (3), all of which fall within the scope of the technology that can be applied and replaced by this invention.

[0072] Step S4: Apply the soft adhesive in a linear pattern and allow it to cure into a soft adhesive layer.

[0073] Specifically, this step can be performed by the second glue application head 42 on the working head 20 according to the distribution information of the multiple glue particles 95, starting from the starting point of the glue application path 99 to perform a continuous linear application of soft glue 96 on the object frame 92 (including straight frame 921 and frame corner 922). This continuous linear application of soft glue 96 is performed while the working head 20 is moving continuously without stopping. The continuous movement can be adjusted according to the actual position of the frame 92 with glue particles 95 and without glue particles 95 read by the three-dimensional scanner 50, so that the same cross-sectional height of strip soft glue 96 can be applied to the frame 92 with glue particles 95 and without glue particles 95, so that the soft glue 96 can cover the multiple glue particles 95 in a planar form and adhere to the frame corner 922 and straight frame 921. At this time, at least one of the curing lamps 43 should preferably be a linear curing lamp 431, and follow behind the second applicator head 41 at a distance from the projection eccentricity distance L2 (e.g., Figure 7 (As shown) and continue to move so that the strip of soft adhesive 96 can be quickly illuminated and cured into a soft adhesive layer.

[0074] In this invention, when the linear curing lamp 431 and the dot curing lamp 432 are configured simultaneously, the curing of the soft adhesive 96 is performed by the linear curing lamp 432, which is spaced apart from the second coating head 42 by an eccentric projection distance L2. At this time, the dot curing lamp 431 may not perform the projection action.

[0075] During the execution of step S4 above, when the second applicator head 42 and the linear curing lamp 431 encounter the corner of the frame 922, the second applicator head 42 can be driven by the rotary device 23 and apply the soft glue to the corner of the frame 922 in a continuous eccentric rotation mode with the first applicator head 41 as the rotation center. The continuous eccentric rotation mode can be applied at different continuous rotation speeds depending on the actual position of the frame 92 with and without glue particles 95 read by the three-dimensional scanner 50, so that the width and thickness of the soft glue 96 applied on the corner of the frame 922, whether or not there are glue particles 95, can be consistent with the soft glue on the straight frame 921. Immediately after the soft adhesive 96 is applied to the corner of the frame 922, the linear curing lamp 431 is driven by the rotator 23 and rotates eccentrically around the first adhesive applicator 41. By using the linear light emitted by the light-emitting width W, the soft adhesive 96 on the corner of the frame 922 is cured into a soft adhesive layer during the eccentric rotation process, thereby correcting the problems of easy formation of adhesive layer bumps and insufficient curing light at the corner of the frame 922.

[0076] Chen Ru Figure 10As shown, when the tool head 20 with three-dimensional mobility drives the first adhesive applicator 41 to move sequentially from position 41a, 41b to 41c, a second adhesive applicator 42 maintains an adhesive applicator eccentricity distance L1 with the first adhesive applicator 41, and a linear curing lamp 431 maintains a light projection eccentricity distance L2 with the first adhesive applicator 41 (as shown). Figure 7 As shown), both are centered on the first adhesive applicator 41. When the first adhesive applicator moves sequentially from positions 41a, 41b to 41c, the relatively farther first adhesive applicator 42 moves sequentially from positions 42a, 42b to position 42c, and the relatively closer linear curing lamp 431 moves sequentially from positions 431a, 431b to position 431c. This ensures that after performing step S4, the frame corner 922, together with the straight frame 921, achieves a more complete and nearly consistent UV adhesive coating quality (e.g., ...). Figure 11 As shown), this facilitates the secure bonding of the object to be glued 93 (e.g., a glass panel) around the object frame 92 of the object to be glued 91 (e.g., a back cover) with a certain spacing.

[0077] After completing step S4 above, the working head 20 can also carry the three-dimensional scanner 50 to move along the adhesive application path 99 once to perform dynamic scanning on the object frame 92 after adhesive application, and determine the coating quality of the UV adhesive layer.

[0078] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all such modifications, variations or equivalents will fall within the protection scope of the present invention.

Claims

1. An automatic adhesive coating device for UV adhesive layering on the frame of an object, characterized in that, include: A glue application detection platform is used to locate an object to be glued, the object being surrounded by a frame to form a glue application path, and the glue application path passing through at least one corner of the frame. A working head is configured to move in three dimensions on the adhesive application testing platform. The working head is driven by a three-dimensional drive mechanism to move in three dimensions. The three-dimensional drive mechanism is configured around the adhesive application testing platform. The working head has a base frame and a rotating base. A rotator is configured on the base frame to drive the rotating base to rotate around a rotation center. The rotating base is configured with a first adhesive application head, a second adhesive application head, and at least one curing lamp located around the first adhesive application head and the second adhesive application head. in: The UV adhesive layer consists of multiple spaced adhesive particles surrounded by a layer of soft adhesive. The multiple adhesive particles are applied to the frame at intervals by the first applicator, and the soft adhesive is continuously applied to the multiple adhesive particles in a planar manner by the second applicator and adheres to the frame. The first glue applicator is located at the rotation center, and the second glue applicator is located at a glue applicator eccentric position next to the first glue applicator, separated by a glue applicator eccentric distance. At least one of the curing lamps includes a linear curing lamp that provides linear light to illuminate the frame and at least one of the frame corners. The linear curing lamp is located at an off-center position next to the first applicator at a distance of one off-center projection distance. The linear curing lamp has a light emission width that is greater than the off-center projection distance. The glue supply direction of the first applicator and the second applicator is the same as the projection direction of the linear curing lamp.

2. The automatic adhesive application device for UV adhesive coating of object frame as described in claim 1, characterized in that: The rotating base is also equipped with a three-dimensional scanner. The working head drives the three-dimensional scanner to perform dynamic scanning of the frame and frame corners before applying adhesive to obtain the adhesive path. The working head also drives the three-dimensional scanner to perform dynamic scanning of the frame and frame corners after applying adhesive to determine the coating quality of the UV adhesive layer.

3. The automatic adhesive application device for UV adhesive coating of object frame as described in claim 1, characterized in that: At least one of the curing lamps further includes a plurality of dot-shaped curing lamps capable of projecting dot-shaped light rays, and the plurality of dot-shaped curing lamps are arranged at intervals around the first coating head along a plane rectangular coordinate direction.

4. The automatic adhesive application device for UV adhesive coating of object frame as described in claim 3, characterized in that: The distance between the point-like curing lamps relative to the first coating head on the Cartesian coordinate plane is less than the distance between the projection eccentricities of the line-like curing lamps.

5. The automatic adhesive application device for UV adhesive coating of object frame as described in any one of claims 1 to 4, characterized in that: The linear curing lamp is positioned between the first coating head and the second coating head, such that the projection eccentricity of the linear curing lamp is smaller than the coating eccentricity of the second coating head.

6. An automatic adhesive coating method for a UV adhesive layer on the edge of an object, characterized in that, This includes performing the following steps (1) through (4) in sequence: Step (1): Detect a glue application path on the object's border; Step (2): A first dispensing head and at least one curing lamp are carried and move step by step along the dispensing path of the object frame, and the first dispensing head is driven to apply multiple dots of glue to the object frame at intervals, so that at least one curing lamp follows behind the first dispensing head to illuminate and cure the multiple dots of glue into multiple glue particles. Step (3): Detect the distribution position of the multiple adhesive particles on the object's edge; Step (4): Drive the second coating head to apply a soft glue to the object frame with multiple glue particles in a continuous moving manner, so that the soft glue covers the multiple glue particles in a surface form and adheres to the object frame and at least one of the frame corners, and let at least one curing lamp follow behind the second coating head to illuminate and cure the soft glue into a soft glue layer. The object frame includes at least one frame corner located on the adhesive application path. When the second adhesive application head encounters at least one of the frame corners, it applies the soft adhesive to the frame corner in an eccentric rotation with the first adhesive application head as the rotation center. At least one of the curing lamps provides a linear light beam with a light emission width in an eccentric rotation with the first adhesive application head as the rotation center, illuminating the soft adhesive on the frame corner during the eccentric rotation.

7. The automatic adhesive application method for the UV adhesive layer on the object frame as described in claim 6, characterized in that: The first coating head, the second coating head, and at least one of the curing lamps are carried by a three-dimensionally movable working head, and perform three-dimensional stepping movement, continuous movement, and eccentric rotation.

8. The automatic adhesive application method for the UV adhesive layer on the object frame as described in claim 7, characterized in that: The working head also includes a three-dimensional scanner, which is used to detect the adhesive application path and the distribution positions of the multiple adhesive particles.

9. The automatic adhesive application method for a UV adhesive layer on the object frame as described in claim 6, 7, or 8, characterized in that: The second coating head is located at a coating eccentric position next to the first coating head at a distance of one coating eccentric spacing. At least one of the curing lamps is a linear curing lamp, which is located at a projection eccentric position next to the first coating head at a distance of one projection eccentric spacing. The light emission width is greater than the projection eccentric spacing.

10. The automatic adhesive application method for the UV adhesive layer on the object frame as described in claim 9, characterized in that: At least one of the curing lamps further includes a plurality of dot-shaped curing lamps capable of projecting dot-shaped light, and the plurality of dot-shaped curing lamps are spaced apart around the first coating head along a plane rectangular coordinate direction, and the plurality of adhesive particles are followed by the plurality of dot-shaped curing lamps and cured by light projection behind the first coating head.

11. The automatic adhesive application method for the UV adhesive layer on the object frame as described in claim 10, characterized in that: The distance between the dots of the curing lamps relative to the first coating head on the Cartesian coordinate plane is less than the distance between the projection eccentricities of the linear curing lamps.

12. The automatic adhesive application method for the UV adhesive layer on the object frame as described in claim 11, characterized in that: The 3D scanner also performs dynamic scanning on the object's border after adhesive application to determine the coating quality of the UV adhesive layer.

Images