Gluing method and automatic gluing machine

Abstract

The invention discloses a rubberizing method and an automatic rubberizing machine, and the rubberizing method comprises the following steps: S1, providing a pressure-sensitive adhesive sticker; the pressure-sensitive adhesive sticker comprises black adhesive, a blue film arranged on the top surface of the black adhesive and a bottom film arranged on the bottom surface of the black adhesive; a reticulate pattern structure is arranged on the bottom film, and a reticulate pattern structure matched with the bottom film is arranged on the bottom surface of the black glue; the blue film comprises a release film with the thickness of 0.03 to 0.04 mm, and the gram weight of release force is 100 to 200gf; s2, pasting the pressure-sensitive adhesive obtained in the step S1 to the concave surface structure by adopting an automatic adhesive pasting machine; the automatic adhesive tape pasting machine comprises an adhesive tape pre-pasting device and a pressure maintaining device, the adhesive tape pre-pasting device is used for pre-pasting the edge area of the pressure-sensitive adhesive tape to the concave surface structure, and the pressure maintaining device is used for completely pasting the pressure-sensitive adhesive tape pre-pasted to the concave surface structure to the concave surface structure. According to the rubberizing method, the rubberizing quality on the concave surface structure can be improved, bumps and top film release caused by bubbles generated between the rubberizing part and the concave surface structure are avoided, and the rubberizing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bonding and assembling, and in particular to a gluing method and an automatic gluing machine. Background Art

[0002] In the prior art gluing process, when the adhesive sticker is pasted on the concave surface of a workpiece with a groove structure, not only are bubbles easily formed between the bottom surface of the adhesive sticker and the surface of the groove structure, but also after the main body of the adhesive sticker is deformed with the groove structure, the film layer provided on the top surface of the adhesive sticker is easily released, resulting in poor adhesion between the adhesive sticker and the groove structure. The parts pasted in the groove structure are easily fallen off during subsequent assembly, thereby increasing the defective rate of the product. In addition, the prior art uses manual gluing to perform gluing operations on concave structures, which is difficult for workers to operate, has high labor costs and low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the above problems and provide a gluing method and an automatic gluing machine, which can improve the gluing quality on the concave structure, avoid bubbles between the glue and the concave structure and bulging and top film separation, and improve the gluing efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] In a first aspect, the present invention provides a method for applying glue, comprising the steps of:

[0006] S1, providing a pressure-sensitive adhesive tape; the pressure-sensitive adhesive tape comprises black glue, a blue film disposed on the top surface of the black glue, and a base film disposed on the bottom surface of the black glue; the base film is provided with a reticulated structure, and the bottom surface of the black glue is provided with a reticulated structure matched with the base film; the blue film comprises a release film with a thickness of 0.03-0.04 mm, and a release force of 100-200 gf;

[0007] S2, using an automatic gluing machine to stick the pressure-sensitive adhesive obtained in step S1 to the concave structure; the automatic gluing machine includes a pre-gluing device and a pressure-maintaining device, the pre-gluing device is used to pre-stick the edge area of ​​the pressure-sensitive adhesive to the concave structure, and the pressure-maintaining device is used to completely stick the pressure-sensitive adhesive pre-sticked to the concave structure to the concave structure.

[0008] Optionally, in step S1, the base film is a PET release film with a textured structure, the thickness of the PET release film is 0.07-0.09 mm, the textured structure is protruding from the plane of the base film, and the height of the textured structure is 1 / 3 of the thickness of the PET release film.

[0009] Optionally, the pre-glueing device includes a first suction nozzle, which is used to suck the pressure-sensitive adhesive label; the middle area of ​​the bottom surface of the first suction nozzle is flat, and the edge area of ​​the bottom surface of the first suction nozzle is arc-shaped to match the concave structure.

[0010] Optionally, the pressure-maintaining device includes a pressure-maintaining head, the bottom surface of which is adapted to the concave structure; and the pressure-maintaining head is made of flexible silicone.

[0011] Second aspect: The present invention provides an automatic glue laminating machine, which is applied to the glue laminating method as described above; it comprises a pre-glue laminating device and a pressure-maintaining device, wherein the pre-glue laminating device is used to pre-laminate the pressure-sensitive adhesive onto the concave structure, and the pressure-maintaining device is used to completely laminate the pressure-sensitive adhesive pre-laminated onto the concave structure onto the concave structure.

[0012] Optionally, the pre-glueing device includes a first suction nozzle, which is used to suck the pressure-sensitive adhesive label; the middle area of ​​the bottom surface of the first suction nozzle is flat, and the edge area of ​​the bottom surface of the first suction nozzle is arc-shaped to match the concave structure; the pressure-maintaining device includes a pressure-maintaining head, and the bottom surface of the pressure-maintaining head is compatible with the concave structure; the pressure-maintaining head is made of flexible silicone.

[0013] Optionally, the automatic gluing machine also includes a machine platform, a loading device, a turntable and a unloading device, and the pre-gluing device, the pressure-maintaining device, the loading device, the turntable and the unloading device are all arranged on the machine platform; the turntable is arranged in the middle area of ​​the machine platform, and the loading device, the pre-gluing device, the pressure-maintaining device and the unloading device are distributed on the periphery of the turntable; a positioning jig is provided on the turntable.

[0014] Optionally, the pre-gluing device also includes a glue discharging mechanism, a first driving mechanism and a first detection mechanism. The glue discharging mechanism is used to output the pressure-sensitive adhesive tape, the first driving mechanism is used to drive the first suction nozzle to move, and then transfer the pressure-sensitive adhesive tape from the glue discharging mechanism to the direction of the turntable, and the first detection mechanism is used to detect the adsorption condition of the pressure-sensitive adhesive tape by the first suction nozzle.

[0015] Optionally, the pressure-maintaining device also includes a second driving mechanism, a third driving mechanism, a pressure-maintaining jig and a fourth driving mechanism, the pressure-maintaining jig is arranged on the third driving mechanism and moves along the X direction under the drive of the second driving mechanism; the second driving mechanism is used to transfer the workpiece pre-affixed with a pressure-sensitive adhesive from the positioning jig to the pressure-maintaining jig, and the fourth driving mechanism is used to drive the pressure-maintaining head to be aligned with the positioning jig.

[0016] Optionally, the machine is square, and the loading device, pre-gluing device, pressure-maintaining device and unloading device are respectively arranged on four side areas of the machine.

[0017] The beneficial effects produced by the present invention include at least:

[0018] The gluing method of the present invention is suitable for gluing a pressure-sensitive adhesive patch on a workpiece with a concave structure. The gluing method provides a pressure-sensitive adhesive patch, wherein a reticulated structure is arranged on the bottom surface of the black glue to ensure that the black glue can be exhausted smoothly when it is bonded to the surface of the concave structure, thereby avoiding air stagnation and bubble bulging during bonding; under the thickness and release force selected by the present invention, the blue film has good structural stability and will not be torn off when the blue film is torn off, and the internal stress after deformation after bonding with the adhesive patch is relatively small, and the blue film will not be separated due to its own internal stress after bonding; when the pressure-sensitive adhesive patch is pasted, the pre-gluing device is first used to pre-paste the pressure-sensitive adhesive patch on the concave structure of the workpiece, and then the pressure-maintaining device is used to perform pressure-maintaining pressing, so that the pressure-sensitive adhesive patch is completely bonded to the concave structure. The gluing method of the present invention adopts a composite process of pre-gluing + pressure-maintaining, first pre-positioning the pressure-sensitive adhesive patch, and then pressure-maintaining laminating, thereby improving the gluing accuracy and gluing efficiency of the pressure-sensitive adhesive patch. In addition, the glue sticking method of the present invention is performed using an automatic glue sticking machine to achieve automatic glue sticking and improve glue sticking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the pressure-sensitive adhesive tape of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the pre-gluing device.

[0021] Figure 3 It is a schematic diagram of the states of the first suction nozzle, the pressure-sensitive adhesive label and the workpiece to be glued when the workpiece is pre-bonded with a pressure-sensitive adhesive label.

[0022] Figure 4 It is a structural schematic diagram of the pressure maintaining device.

[0023] Figure 5 This is a schematic diagram of the status of the pressure-maintaining head, the pressure-sensitive adhesive tape and the workpiece to be glued during the pressure-maintaining treatment.

[0024] Figure 6 This is a top view of the automatic glue sticking machine.

[0025] Figure 7 It is a structural schematic diagram of the feeding device.

[0026] Figure 8 It is a schematic diagram of the overall structure of the automatic glue sticking machine.

[0027] Fig. 9 This is a schematic diagram of the structure of small and micro hardware.

[0028] Among them, 100-pressure-sensitive adhesive, 101-black glue, 102-blue film, 103-base film, 200-workpiece to be glued, 300-small and micro hardware, 1-pre-glueing device, 11-first suction nozzle, 12-glue discharging mechanism, 13-first driving mechanism, 131-first Y-direction driving component, 132-first X-direction driving component, 133-first Z-direction driving component, 14-first detection mechanism, 2-pressure holding device, 21-pressure holding head, 22-second driving mechanism, 221-first gantry bracket, 222-second Y-direction driving component, 223-second Z-direction driving component, 224-second suction nozzle, 23-third driving mechanism, 23 1-third X-direction drive assembly, 232-third Y-direction drive assembly, 24-pressure holding fixture, 25-fourth drive mechanism, 251-second gantry bracket, 252-fourth Y-direction drive assembly, 253-fourth Z-direction drive assembly, 3-machine table, 4-loading device, 41-material tray, 42-fifth drive mechanism, 43-sixth drive mechanism, 431-sixth gantry bracket, 432-sixth X-direction drive assembly, 433-sixth Z-direction drive assembly, 44-third suction nozzle, 45-second detection mechanism, 5-turntable, 6-unloading device, 61-seventh drive mechanism, 62-fourth suction nozzle, 63-third detection mechanism, 7-positioning fixture. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in the present invention. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] In the present invention, descriptions such as “first”, “second”, etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0033] In the description of the present invention, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It does 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.

[0034] In the present invention, the X direction, the Y direction and the Z direction are perpendicular to each other in space.

[0035] Example:

[0036] In a first aspect, the present invention provides a method for applying glue, comprising the steps of:

[0037] S1, providing a pressure-sensitive adhesive tape 100; see Figure 1 As shown, the pressure-sensitive adhesive patch 100 includes a black glue 101, a blue film 102 arranged on the top surface of the black glue 101, and a base film 103 arranged on the bottom surface of the black glue 101; the base film 103 is provided with a reticulated structure, and the bottom surface of the black glue 101 is provided with a reticulated structure matched with the base film 103; the blue film 102 includes a release film with a thickness of 0.03-0.04mm, and a release force of 100-200gf;

[0038] S2, using an automatic gluing machine to stick the pressure-sensitive adhesive tape 100 obtained in step S1 to the concave structure; the automatic gluing machine includes a pre-gluing device 1 and a pressure-maintaining device 2, the pre-gluing device 1 is used to pre-stick the edge area of ​​the pressure-sensitive adhesive tape 100 to the concave structure, and the pressure-maintaining device 2 is used to completely stick the pressure-sensitive adhesive tape pre-sticked to the concave structure to the concave structure.

[0039] The gluing method of the present invention is suitable for gluing a pressure-sensitive adhesive 100 onto a concave structure of a workpiece. The gluing method provides a pressure-sensitive adhesive 100, wherein a reticulated structure is arranged on the bottom surface of the black glue 101 to ensure smooth exhaust of the black glue 101 when it is bonded to the surface of the concave structure, thereby avoiding air stagnation and bubble bulging during bonding; under the thickness and release force selected by the present invention, the blue film 102 has good structural stability and will not be torn off when the blue film 102 is torn off, and the internal stress after deformation after bonding with the adhesive is relatively small, and the blue film 102 will not be separated due to its own internal stress after bonding; when the pressure-sensitive adhesive 100 is pasted, the pre-gluing device 1 is first used to pre-paste the pressure-sensitive adhesive 100 onto the concave structure of the workpiece, and then the pressure-maintaining device 2 is used to perform pressure-maintaining pressing, so that the pressure-sensitive adhesive 100 is completely bonded to the concave structure. The gluing method of the present invention adopts a composite process of pre-gluing + pressure holding, first pre-positioning the pressure-sensitive adhesive 100, and then pressure-holding and laminating, thereby improving the gluing accuracy and gluing efficiency of the pressure-sensitive adhesive 100. In addition, the gluing method of the present invention adopts an automatic gluing machine to realize automatic gluing and improve the gluing efficiency.

[0040] In step S1, the bottom film 103 is a PET release film with a textured structure, the thickness of the PET release film is 0.07-0.09mm, the textured structure is protruding from the plane of the bottom film 103, and the height of the textured structure is 1 / 3 of the thickness of the PET release film; before the pressure-sensitive adhesive 100 is pre-attached to the concave structure, the bottom film 103 needs to be peeled off, the bottom film 103 has sufficient toughness and is not easy to wrinkle and the glue peeling is smooth, and is suitable for the glue suction operation of the automatic suction nozzle of the automatic glue sticking machine provided in the present invention. Further optionally, the bottom film 103 is a PET release film with a textured structure, and its total thickness is 0.075mm, wherein the height of the textured structure is 0.025mm. The top film 102 and the bottom film 103 are respectively arranged on the top and bottom surfaces of the black glue 101 to support and protect the black glue 101.

[0041] See also Figure 2 As shown, the pre-adhesive device 1 comprises a first suction nozzle 11, and the first suction nozzle 11 is used to absorb the pressure-sensitive adhesive 100; see Figure 3As shown, the middle area of ​​the bottom surface of the first suction nozzle 11 is flat, and the edge area of ​​the bottom surface of the first suction nozzle 11 is arc-shaped to match the concave structure; when the first suction nozzle 11 sucks the pressure-sensitive adhesive 100, the middle area of ​​the pressure-sensitive adhesive 100 is adsorbed to the middle area of ​​the first suction nozzle 11, and the edge area of ​​the pressure-sensitive adhesive 100 is adsorbed to the edge area of ​​the first suction nozzle 11, and the edge area of ​​the first suction nozzle 11 adheres the edge area of ​​the pressure-sensitive adhesive 100 to the workpiece to form a pre-adhesion area. In the present invention, when the first suction nozzle 11 adsorbs the pressure-sensitive adhesive 100, the middle area of ​​the first suction nozzle 11 and the middle area of ​​the pressure-sensitive adhesive 100 are tightly attached to form a closed space, ensuring stable adsorption of the pressure-sensitive adhesive 100, and the edge area of ​​the first suction nozzle 11 is adapted to the concave structure, so that the pressure-sensitive adhesive 100 and the concave structure are firmly bonded.

[0042] In step S2, the pressure-holding treatment time is 5-8 seconds. The preferred pressure-holding treatment time of the present invention can fully activate the adhesiveness of the pressure-sensitive adhesive, so that the pressure-sensitive adhesive patch 100 and the concave structure of the workpiece are firmly attached.

[0043] See also Figure 4 and Figure 5 As shown, the pressure-maintaining device 2 includes a pressure-maintaining head 21, and the bottom surface of the pressure-maintaining head 21 is adapted to the concave structure of the workpiece 200 to be glued; the pressure-maintaining head 21 is made of flexible silicone. Specifically, the pressure-maintaining head 21 is made of flexible silicone with a Shore hardness of 50. The bottom surface of the pressure-maintaining head 21 is designed to imitate the concave structure, which ensures that the pressure-sensitive adhesive 100 can be tightly combined with the groove structure during the pressure-maintaining process and avoids the formation of bubbles, thereby ensuring the quality of glue and improving the yield rate of glue; the pressure-maintaining head 21 is made of flexible silicone with a Shore hardness of 50, which further ensures that the blue film 102 and the black glue 101, as well as the black glue 101 and the concave structure are tightly fitted without generating bubbles. It should be noted that the bottom surface refers to the side of the concave structure close to the workpiece to be glued, and the top surface refers to the side of the concave structure away from the workpiece to be glued.

[0044] In a second aspect, the present invention provides an automatic glue sticking machine, which is used in the glue sticking method as described above. Figure 6 As shown, it includes a pre-gluing device 1 and a pressure-maintaining device 2, wherein the pre-gluing device 1 is used to pre-glue the pressure-sensitive adhesive 100 on the concave structure of the workpiece 200 to be glued, and the pressure-maintaining device 2 is used to completely adhere the pressure-sensitive adhesive 100 pre-glueed on the concave structure to the concave structure.

[0045] See also Figure 2 and Figure 3As shown, the pre-gluing device 1 includes a first suction nozzle 11, and the first suction nozzle 11 is used to suck the pressure-sensitive adhesive 100; the middle area of ​​the bottom surface of the first suction nozzle 11 is flat, and the edge area of ​​the bottom surface of the first suction nozzle 11 is arc-shaped to match the concave structure; when the first suction nozzle 11 sucks the pressure-sensitive adhesive 100, the middle area of ​​the pressure-sensitive adhesive 100 is adsorbed on the middle area of ​​the first suction nozzle 11, and the edge area of ​​the pressure-sensitive adhesive 100 is adsorbed on the edge area of ​​the first suction nozzle 11, and the edge area of ​​the first suction nozzle 11 adheres the edge area of ​​the pressure-sensitive adhesive 100 to the workpiece 200 to be glued to form a pre-gluing area. Optionally, the shape of the edge area of ​​the first suction nozzle 11 is adapted to the groove structure of the workpiece 200 to be glued. When the first suction nozzle 11 in the present invention adsorbs the pressure-sensitive adhesive sticker 100, the middle area of ​​the first suction nozzle 11 and the middle area of ​​the pressure-sensitive adhesive sticker 100 are tightly fitted to form a closed space, ensuring stable adsorption of the pressure-sensitive adhesive sticker 100, and the edge area of ​​the first suction nozzle 11 is adapted to the concave structure, so that the pressure-sensitive adhesive sticker 100 and the concave structure are firmly bonded.

[0046] See also Figure 4 and Figure 5 As shown, the pressure-maintaining device 2 includes a pressure-maintaining head 21, the bottom surface of which is adapted to the concave structure of the workpiece 200 to be glued; the pressure-maintaining head 21 is made of flexible silicone. Further optionally, the pressure-maintaining head 21 is made of flexible silicone with a Shore hardness of 50. The bottom surface of the pressure-maintaining head 21 is designed to imitate the concave structure, ensuring that the pressure-sensitive adhesive 100 can be tightly combined with the groove structure during the pressure-maintaining process and avoiding the formation of bubbles, thereby ensuring the quality of the glue and improving the yield rate of the glue; the pressure-maintaining head 21 is made of flexible silicone with a Shore hardness of 50, further ensuring that the blue film 102 and the black glue 101, as well as the black glue 101 and the concave structure are tightly fitted without generating bubbles. It should be noted that the bottom surface refers to the side close to the concave structure of the workpiece to be glued, and the top surface refers to the side away from the concave structure of the workpiece to be glued.

[0047] See also Figure 6 As shown, the automatic gluing machine also includes a machine platform 3, a loading device 4, a turntable 5 and a unloading device 6, the pre-gluing device 1, the pressure-maintaining device 2, the loading device 4, the turntable 5 and the unloading device 6 are all arranged on the machine platform 3; the turntable 5 is arranged in the middle area of ​​the machine platform 3, and the loading device 4, the pre-gluing device 1, the pressure-maintaining device 2 and the unloading device 6 are distributed on the periphery of the turntable 5; a positioning fixture 7 is provided on the turntable 5.

[0048] When in use, the turntable 5 rotates to drive the workpiece to be glued to be transferred between the loading device 4, the pre-gluing device 1, the pressure holding device 2 and the unloading device 6. The loading device 4 is used to load the workpiece to be glued, and transfers the workpiece to be glued to the positioning fixture 7 of the turntable 5, and the unloading device 6 is used to unload the finished workpiece after glue is completed. When the automatic gluing machine of the present invention is used to glue a concave structure, the loading device 4 transfers the workpiece to be glued to the positioning fixture 7 of the turntable 5, and the turntable 5 rotates to transfer the workpiece to be glued to the area corresponding to the pre-gluing device 1, and the pre-gluing device 1 conveys the pressure-sensitive adhesive 100 to the position aligned with the concave structure of the workpiece to be glued through the first suction nozzle 11, and pre-presses the edge area of ​​the pressure-sensitive adhesive 100 on the concave structure; the turntable 5 continues to rotate to transfer the workpiece pre-pasted with the pressure-sensitive adhesive to the area corresponding to the pressure-keeping device 2, and the pressure-keeping device 2 uses the pressure-keeping head 21 to perform pressure-keeping lamination after pre-gluing; after the pressure-keeping treatment, the unloading device 6 removes the finished workpiece from the pressure-keeping device 2 and unloads it.

[0049] Optionally, the machine 3 is square, and the feeding device 4, the pre-gluing device 1, the pressure-maintaining device 2, and the unloading device 6 are respectively arranged at the four side areas of the machine 3. The setting position of the positioning fixture 7 on the turntable 5 corresponds to the feeding device 4, the pre-gluing device 1, and the pressure-maintaining device 2. When the turntable 5 drives the positioning fixture 7 to rotate, the positions corresponding to the feeding device 4, the pre-gluing device 1, and the pressure-maintaining device 2 are all provided with corresponding positioning fixtures 7, thereby ensuring the continuous feeding and transmission of the workpiece and improving the efficiency of gluing.

[0050] Specifically, the loading device 4, the pre-gluing device 1, the unloading device 6 and the pressure-holding device 2 are distributed around the turntable 5 in the counterclockwise direction. The turntable 5 rotates in the counterclockwise direction. The workpiece to be glued is first received by the loading device 4, and then the workpiece to be glued is transferred to the pre-gluing device 1. After pre-gluing, the turntable 5 transfers the workpiece pre-pasted with the pressure-sensitive adhesive to the pressure-holding device 2 for pressure-holding treatment. After the pressure-holding is completed, the assembled product is obtained. The unloading device 6 performs quality inspection on the assembled product before unloading. The overall layout of the automatic glue machine is compact, and the space utilization rate is improved under the condition of realizing automatic glue.

[0051] Optionally, in some embodiments, the number of positioning jigs 7 on the turntable 5 is 4, and the positioning jigs 7 are evenly distributed circumferentially on the turntable 5; in other embodiments, the number of positioning jigs 7 on the turntable 5 may also be 3, wherein 2 of the positioning jigs 7 are arranged along the radial direction of the turntable 5, and the remaining 1 is arranged on a diameter perpendicular to the line connecting the two positioning jigs 7.

[0052] The positioning fixture 7 includes a positioning groove and positioning protrusions arranged at both ends of the positioning groove. When in use, the workpiece is placed in the positioning groove, the positioning protrusion passes through the workpiece, and the adhesive surface of the workpiece is arranged away from the positioning groove. The positioning protrusion ensures the stability of the workpiece placement.

[0053] See also Figure 2 As shown, the pre-gluing device 1 also includes a glue dispensing mechanism 12, a first driving mechanism 13 and a first detecting mechanism 14. The glue dispensing mechanism 12 is used to output the pressure-sensitive adhesive tape 100. The first driving mechanism 13 is used to drive the first suction nozzle 11 to move, thereby transferring the pressure-sensitive adhesive tape 100 from the glue dispensing mechanism 12 to the direction of the turntable 5. The first detecting mechanism 14 is used to detect the adsorption condition of the pressure-sensitive adhesive tape 100 by the first suction nozzle 11.

[0054] The first driving mechanism 13 includes a first Y-direction driving component 131, a first X-direction driving component 132 and a first Z-direction driving component 133. The first suction nozzle 11 is connected to the first Z-direction driving component 133 and moves along the Z-direction under the drive of the first Z-direction driving component 133. The first Z-direction driving component 133 is connected to the first X-direction driving component 132 and moves along the X-direction under the drive of the first X-direction driving component 132. The first X-direction driving component 132 is connected to the first Y-direction driving component 131 and moves along the Y-direction under the drive of the first Y-direction driving component 131. The first detection mechanism 14 is connected to the first Z-direction driving component 133.

[0055] When in use, the first suction nozzle 11 sucks the pressure-sensitive adhesive tape 100 at the discharge area of ​​the glue discharging mechanism 12, and the first detection mechanism 14 detects the adsorption state of the pressure-sensitive adhesive tape 100 by the first suction nozzle 11. After the first detection mechanism 14 detects that the pressure-sensitive adhesive tape 100 and the first suction nozzle 11 are accurately positioned, the first Y-direction driving component 131 drives the first X-direction driving component 132 to move along the Y-direction, the first X-direction driving component 132 drives the first Z-direction driving component 133 to move along the X-direction, and the first Z-direction driving component 133 drives the first suction nozzle 11 to move along the Z-direction, so that the first suction nozzle 11 is finally aligned with the concave structure with glue.

[0056] Furthermore, in some other embodiments, a first hollow rotating platform is further provided on the first Z-direction driving assembly 133, and the first suction nozzle 11 is connected to the first hollow rotating platform. The provision of the first hollow rotating platform facilitates the angle adjustment of the first suction nozzle 11, ensures the accuracy of the mutual positioning between the first suction nozzle 11 and the pressure-sensitive adhesive tape 100, and further ensures the accuracy in the adhesive tape operation.

[0057] Optionally, the glue dispensing mechanism 12 uses a feeder glue dispensing machine. The first X-direction driving assembly 132 includes a linear driving guide assembly arranged along the X-direction, the first Y-direction driving assembly 131 includes a linear driving guide assembly arranged along the Y-direction, and the first Z-direction driving assembly 133 includes a linear driving guide assembly arranged along the Z-direction. The first detection mechanism 14 uses a CCD visual detection system.

[0058] See also Figure 4 As shown, the pressure-maintaining device 2 also includes a second driving mechanism 22, a third driving mechanism 23, a pressure-maintaining jig 24 and a fourth driving mechanism 25. The pressure-maintaining jig 24 is arranged on the third driving mechanism 23 and moves along the X direction under the drive of the second driving mechanism 22; the second driving mechanism 22 is used to transfer the workpiece pre-affixed with a pressure-sensitive adhesive from the positioning jig 7 to the pressure-maintaining jig 24, and the fourth driving mechanism 25 is used to drive the pressure-maintaining head 21 to align with the positioning jig 7.

[0059] The pressure-maintaining fixture 24 includes a plurality of positioning grooves, and the positioning grooves are used to place the workpieces pre-attached with the pressure-sensitive adhesive tape. The number of the pressure-maintaining heads 21 is equal to the number of the positioning grooves. The pressure-maintaining fixture 24 is provided with a plurality of positioning grooves, so that the pressure-maintaining fixture 24 can simultaneously perform pressure-maintaining treatment on a plurality of workpieces pre-attached with the pressure-sensitive adhesive tape 100, thereby improving the efficiency of the pressure-maintaining treatment. Optionally, the pressure-maintaining fixture 24 is a 4-hole pressure-maintaining fixture 24, that is, the number of positioning grooves on the pressure-maintaining fixture 24 is 4.

[0060] The second driving mechanism 22 includes a first gantry bracket 221, a second Y-direction driving component 222, a second Z-direction driving component 223 and a second suction nozzle 224. The first gantry bracket 221 is arranged along the Y direction, the second Y-direction driving component 222 is arranged on the first gantry bracket 221 along the Y direction, the second Z-direction driving component 223 is arranged on the second Y-direction driving component 222, and moves along the Y direction under the drive of the second Y-direction driving component 222, the second suction nozzle 224 is arranged on the second Z-direction driving group, and moves along the Z direction under the drive of the second Z-direction driving component 223; the first gantry bracket 221 is straddled on the third driving mechanism 23.

[0061] The third driving mechanism 23 includes at least two third X-direction driving components 231 arranged in parallel along the X-direction, and each of the third X-direction driving components 231 is provided with a pressure-maintaining fixture 24. The arrangement of multiple third X-direction driving components 231 enables different pressure-maintaining fixtures 24 to alternately cooperate with the pressure-maintaining head 21, thereby ensuring uninterrupted pressure-maintaining processing, and improving production efficiency while ensuring that the pressure-sensitive adhesive 100 is firmly adhered to the concave structure. Preferably, the number of the third X-direction driving components 231 is 2.

[0062] The fourth driving mechanism 25 includes a second gantry bracket 251, a fourth Y-direction driving component 252 and a fourth Z-direction driving component 253. The pressure maintaining head 21 is connected to the fourth Z-direction driving component 253 and moves along the Z direction under the drive of the fourth Z-direction driving component 253. The second gantry bracket 251 is arranged across the third driving mechanism 23. The fourth Y-direction driving component 252 is arranged on the second gantry bracket 251 along the Y direction. The fourth Z-direction driving component 253 is connected to the fourth Y-direction driving component 252 and moves along the Y direction under the drive of the fourth Y-direction driving component 252.

[0063] When the pressure-holding device 2 is used to perform pressure-holding treatment on the workpiece pre-affixed with the pressure-sensitive adhesive, the turntable 5 drives the workpiece pre-affixed with the pressure-sensitive adhesive to rotate to the position corresponding to the pressure-holding device 2, the second Y-direction driving component 222 drives the second Z-direction driving component 223 to move along the Y-direction, the second Z-direction driving component 223 drives the second suction nozzle 224 to move along the Z-direction, the second suction nozzle 224 absorbs the workpiece pre-affixed with the pressure-sensitive adhesive from the positioning fixture 7, and then continues to be driven by the second Y-direction driving component 222 and the second Z-direction driving component 223, so that the second suction nozzle 224 transfers the workpiece pre-affixed with the pressure-sensitive adhesive to the pressure-holding fixture 24. The workpiece is positioned on the pressure-holding fixture 24, the third X-axis driving component 231 drives the pressure-holding fixture 24 to move to the area corresponding to the second gantry bracket 251, the fourth Y-axis driving component 252 drives the fourth Z-axis driving component 253 to move along the Y-axis, so as to drive the pressure-holding head 21 to move to the area aligned with the pressure-holding fixture 24, the fourth Z-axis driving component 253 drives the pressure-holding head 21 to move toward the workpiece, and the pressure-holding head 21 is pressed downward along the Z-axis, so that the pressure-sensitive adhesive patch 100 is tightly fitted with the concave structure of the workpiece, and after maintaining the pressure for 5-8 seconds, the gluing is completed; the fourth Z-axis driving component 253 moves upward, and the pressure-holding fixture 24 moves toward the unloading device 6 driven by the third X-axis driving component 231.

[0064] Furthermore, the third driving mechanism also includes a third Y-direction driving component 232 arranged on the third X-direction driving component 231, and the third Y-direction driving component 232 moves along the Y-direction under the drive of the third X-direction driving component 231. The pressure-maintaining fixture 24 is arranged on the third Y-direction driving component 232, and moves along the X-direction under the drive of the third Y-direction driving component 232. The third Y-direction driving component 232 makes the adjustment of the pressure-maintaining fixture 24 flexible and facilitates the cooperation with the pressure-maintaining head 21.

[0065] See also Figure 7 and Figure 8 As shown, the loading device 4 includes a material tray 41, a fifth driving mechanism 42, a sixth driving mechanism 43, a third suction nozzle 44, and a second detection mechanism 45; the material tray 41 carries the workpiece to be glued, the material tray 41 is arranged on the fifth driving mechanism 42, the fifth driving mechanism 42 is used to transmit the material tray 41, the third suction nozzle 44 is connected to the sixth driving mechanism 43, and is driven by the sixth driving mechanism 43 to transmit the workpiece to be glued, and the second detection mechanism 45 is used to detect the state of the third suction nozzle 44 when sucking the workpiece.

[0066] The fifth driving mechanism 42 is arranged along the Y direction; the sixth driving mechanism 43 includes a sixth gantry bracket 431, a sixth X-direction driving component 432 and a sixth Z-direction driving component 433, the third suction nozzle 44 is connected to the sixth Z-direction driving component 433, and moves along the Z direction under the drive of the sixth Z-direction driving component 433, the sixth Z-direction driving component 433 is connected to the sixth X-direction driving component 432, and moves along the X direction under the drive of the sixth X-direction driving component 432, the sixth X-direction driving component 432 is arranged on the sixth gantry bracket 431, and the sixth gantry bracket 431 is straddled on the fifth driving mechanism 42.

[0067] The feeding device 4 further includes a second hollow rotating platform, the third suction nozzle 44 is connected to the second hollow rotating platform, and the second hollow rotating platform is connected to the sixth Z-direction driving assembly 433. The third suction nozzle 44 is arranged on the hollow rotating platform, which facilitates the rotation adjustment of the third suction nozzle 44 and improves the adjustability of the feeding device 4.

[0068] Optionally, the sixth X-axis driving assembly 432 and the sixth Z-axis driving assembly 433 are linear guide driving assemblies; and the second detection mechanism 45 is a CCD visual detection system.

[0069] During loading, the fifth driving mechanism 42 drives the material tray 41 carrying the workpiece to be glued to move, and the material tray 41 moves to the area corresponding to the sixth gantry bracket 431; the sixth X-direction driving component 432 drives the sixth Z-direction driving component 433 to move along the X-direction, and the sixth Z-direction driving component 433 drives the third suction nozzle 44 to move along the Z-direction, and the third suction nozzle 44 moves close to the material tray 41. After the third suction nozzle 44 absorbs the workpiece, the third detection mechanism 63 detects the adsorption of the workpiece by the third suction nozzle 44 to avoid the offset between the position of the workpiece and the third suction nozzle 44, thereby improving the accuracy of the placement of the workpiece; after detection by the third detection mechanism 63, the third suction nozzle 44 transfers the workpiece to the positioning fixture 7 of the turntable 5.

[0070] See also Figure 6 and Figure 8 As shown, the unloading device 6 includes a seventh driving mechanism 61, a fourth suction nozzle 62, and a third detection mechanism 63; the fourth suction nozzle 62 is connected to the seventh driving mechanism 61 and moves under the drive of the seventh driving mechanism 61, and the fourth suction nozzle 62 transfers the workpiece after the gluing is completed under the drive of the seventh driving mechanism 61. It can be understood that the first suction nozzle 11, the second suction nozzle 224, the third suction nozzle 44 and the fourth suction nozzle 62 are all provided with ventilation holes, and the ventilation holes are connected to the exhaust device through the ventilation pipe.

[0071] The third detection mechanism 63 is used to detect the pasting position of the pressure-sensitive adhesive 100 on the concave structure of the workpiece and the overall size of the workpiece. Optionally, the third detection mechanism 63 uses a CCD visual detection system.

[0072] When unloading, the fourth suction nozzle 62, driven by the seventh driving mechanism 61, sucks the glued workpiece from the pressure-maintaining fixture 24, and then moves to the third detection mechanism 63. The third detection mechanism 63 detects the pasting position of the pressure-sensitive adhesive 100 and the workpiece as a whole to determine whether the product is qualified.

[0073] It should be noted that the gluing method and automatic gluing machine described in the present invention are not only suitable for pasting the pressure-sensitive adhesive tape 100 on a concave structure, but also can adopt the process flow disclosed in step S2 described in the present invention when pasting other types of adhesive tapes on a concave structure; when applied to pasting other types of adhesive tapes on a concave structure, the glue discharging mechanism 12 in the pre-gluing device 1 can be replaced with a glue discharging mechanism 12 of the corresponding type.

[0074] The above-mentioned gluing method and automatic gluing machine are used to automatically glue the concave structure of the small and micro hardware 300. The structural schematic diagram of the small and micro hardware 300 is shown in FIG. Fig. 9As shown, the small and micro hardware 300 is a stainless steel workpiece with a thickness of 0.1mm, and the area to be glued of the small and micro hardware 300 is in the shape of a groove, and the pressure-sensitive adhesive 100 is pasted on the concave structure of the groove, wherein the black glue 101 of the pressure-sensitive adhesive 100 has a thickness of 0.05mm, the blue film 102 uses a PET release film with a release force of 0.03-0.04mm and a gram weight of 100-200gf, and the bottom film 103 uses a PET release film with a thickness of 0.075mm and a mesh height of 0.025mm and a gram weight of 3-5g. The pressure-sensitive adhesive 100 is provided by the above method, and the bottom surface of the black glue 101 has a mesh structure. The pressure-sensitive adhesive 100 is pasted on the concave structure of the small and micro stainless steel workpiece using the above automatic glue sticking machine and glue sticking method; as a preference, the time of the pressure holding treatment is 5s.

[0075] The prior art manual glue application includes the following steps:

[0076] Step 1: Use the jig to position the adhesive and the workpiece to be glued respectively; Step 2: Turn on the switch and the jig starts to press; Step 3: After manually pressing the product, manually remove the product from the gluing jig; Step 4: Put the removed product into the finished product box. The gluing device in the prior art cannot perform automatic gluing and due to the instability of manual operation, the quality of gluing cannot be guaranteed, and the gluing status cannot be detected during the gluing process.

[0077] The capacity of gluing by the automatic gluing machine of the present invention is 14K pieces / person / machine / day. The capacity of manual gluing is only 0.75K / person / day. Compared with the manual gluing operation in the prior art, the capacity is significantly improved, and the gluing quality of the concave structure is guaranteed by optimizing the pressure-sensitive adhesive sticker 100, the gluing method and the gluing machine; the gluing method and the automatic gluing machine provided by the present invention can not only complete the gluing operation of the concave structure, but also are suitable for gluing the concave structure of the workpiece of small size.

[0078] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for gluing, characterized in that: Includes steps: S1, providing a pressure-sensitive adhesive tape; the pressure-sensitive adhesive tape comprises black glue, a blue film disposed on the top surface of the black glue, and a base film disposed on the bottom surface of the black glue; the base film is provided with a reticulated structure, and the bottom surface of the black glue is provided with a reticulated structure matched with the base film; the blue film comprises a release film with a thickness of 0.03-0.04 mm, and a release force of 100-200 gf; S2, using an automatic gluing machine to stick the pressure-sensitive adhesive obtained in step S1 to the concave structure; the automatic gluing machine includes a pre-gluing device and a pressure-maintaining device, the pre-gluing device is used to pre-stick the edge area of ​​the pressure-sensitive adhesive to the concave structure, and the pressure-maintaining device is used to completely stick the pressure-sensitive adhesive pre-sticked to the concave structure to the concave structure.

2. The adhesive laminating method according to claim 1, characterized in that: In step S1, the base film is a PET release film with a textured structure, the thickness of the PET release film is 0.07-0.09 mm, the textured structure is protruding from the plane of the base film, and the height of the textured structure is 1 / 3 of the thickness of the PET release film.

3. The adhesive laminating method according to claim 1, characterized in that: The pre-adhesive device comprises a first suction nozzle, which is used to absorb the pressure-sensitive adhesive label; the middle area of ​​the bottom surface of the first suction nozzle is flat, and the edge area of ​​the bottom surface of the first suction nozzle is arc-shaped to match the concave structure.

4. The adhesive laminating method according to claim 1, characterized in that: The pressure-maintaining device comprises a pressure-maintaining head, the bottom surface of which is matched with the concave structure; and the pressure-maintaining head is made of flexible silicone.

5. An automatic glue sticking machine, characterized in that: The method for laminating as described in any one of claims 1 to 4 comprises a pre-laminating device and a pressure-maintaining device, wherein the pre-laminating device is used to pre-laminate the pressure-sensitive adhesive onto a concave structure, and the pressure-maintaining device is used to completely adhere the pressure-sensitive adhesive pre-laminated onto the concave structure onto the concave structure.

6. The automatic glue sticking machine according to claim 5, characterized in that: The pre-adhesive device includes a first suction nozzle, which is used to absorb the pressure-sensitive adhesive label; the middle area of ​​the bottom surface of the first suction nozzle is flat, and the edge area of ​​the bottom surface of the first suction nozzle is arc-shaped to match the concave structure; the pressure-maintaining device includes a pressure-maintaining head, and the bottom surface of the pressure-maintaining head is compatible with the concave structure; the pressure-maintaining head is made of flexible silicone.

7. The automatic glue sticking machine according to claim 5, characterized in that: The automatic glue laminating machine also includes a machine platform, a loading device, a turntable and a unloading device. The pre-gluing device, the pressure-maintaining device, the loading device, the turntable and the unloading device are all arranged on the machine platform; the turntable is arranged in the middle area of ​​the machine platform, and the loading device, the pre-gluing device, the pressure-maintaining device and the unloading device are distributed on the periphery of the turntable; a positioning fixture is provided on the turntable.

8. The automatic glue sticking machine according to claim 7, characterized in that: The pre-gluing device also includes a glue discharging mechanism, a first driving mechanism and a first detecting mechanism. The glue discharging mechanism is used to output the pressure-sensitive adhesive tape. The first driving mechanism is used to drive the first suction nozzle to move, thereby transferring the pressure-sensitive adhesive tape from the glue discharging mechanism to the direction of the turntable. The first detecting mechanism is used to detect the adsorption condition of the pressure-sensitive adhesive tape by the first suction nozzle.

9. The automatic glue sticking machine according to claim 7, characterized in that: The pressure-maintaining device also includes a second driving mechanism, a third driving mechanism, a pressure-maintaining jig and a fourth driving mechanism. The pressure-maintaining jig is arranged on the third driving mechanism and moves along the X direction under the drive of the second driving mechanism. The second driving mechanism is used to transfer the workpiece pre-affixed with a pressure-sensitive adhesive from the positioning jig to the pressure-maintaining jig, and the fourth driving mechanism is used to drive the pressure-maintaining head to align with the positioning jig.

10. The automatic glue sticking machine according to claim 7, characterized in that: The machine is square in shape, and the loading device, the pre-gluing device, the pressure-maintaining device and the unloading device are respectively arranged on four side areas of the machine.

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