Adhesive device and adhesive method

Abstract

This invention discloses an adhesive bonding device and a bonding method. The adhesive bonding device includes: a peeling device for carrying a double-sided adhesive roll to release the strip of the double-sided adhesive roll and peel the pre-release body of the strip from the bottom strip; and a bonding device connected to or adjacent to the peeling device for operating the release film on the pre-release body and transferring the peeled pre-release body to a predetermined bonding area. The release film on the pre-release body then first adheres the adhesive sheet of the pre-release body to an optocoupler located in the bonding area, and then peels the release film off the adhesive sheet. Preferably, the double-sided adhesive roll is the aforementioned type. This adhesive bonding device can automatically bond the adhesive sheet of the double-sided adhesive roll to the optocoupler, achieving automated bonding operation. Compared with existing manual bonding methods, this automated bonding operation has advantages such as high bonding efficiency and high bonding quality stability.

Description

Technical Field

[0001] This invention generally relates to the field of communication device manufacturing and assembly. More specifically, this invention relates to a bonding device for attaching double-sided adhesive film to an optocoupler, and a bonding method for attaching the double-sided adhesive film to the optocoupler. Background Technology

[0002] This section is intended to provide background or context for embodiments of the invention set forth in the claims. The description herein may include concepts that may be explored, but not necessarily concepts that have been previously conceived or explored. Therefore, unless otherwise stated, what is described in this section is not prior art for the purposes of this application's specification and claims, and is not acknowledged as prior art simply by virtue of its inclusion in this section.

[0003] An optocoupler is a device that transmits signals using light as a medium. When installing an optocoupler into a device, double-sided tape is needed for a certain degree of encapsulation. Existing double-sided tape mainly consists of a base tape and multiple uniformly sized adhesive sheets spaced apart on the base tape. During use, the tape needs to be cut according to the gaps between the adhesive sheets. Then, the cut base tape is applied to the adhesive sheets attached to it and pasted onto the optocoupler. If necessary, encapsulating adhesive (such as UV adhesive) can be used to assist the double-sided tape in completing the encapsulation of the optocoupler.

[0004] In the above-mentioned pasting process, the entire pasting process needs to be completed manually, which has problems such as low pasting efficiency and poor quality stability. Therefore, there is an urgent need to provide a pasting device that can paste the adhesive sheet of the double-sided adhesive roll onto the optocoupler, and a pasting method that can paste the adhesive sheet of the double-sided adhesive roll onto the optocoupler, so as to solve the problems of low pasting efficiency and poor bonding quality stability of the existing technology. Summary of the Invention

[0005] To address one or more of the technical problems mentioned above, the present invention provides a bonding device for attaching double-sided adhesive film to an optocoupler, and a bonding method for attaching the double-sided adhesive film to the optocoupler.

[0006] According to a first aspect of the present invention, an adhesive bonding apparatus is provided. The apparatus includes: a peeling device for carrying a double-sided adhesive roll to release a strip of the double-sided adhesive roll and peel a pre-release element of the strip from the base of the strip; and an adhesive bonding device connected to or adjacent to the peeling device for operating a release film on the pre-release element and transferring the peeled pre-release element to a predetermined bonding area, wherein the release film on the pre-release element first adheres an adhesive sheet of the pre-release element to an optocoupler located within the bonding area, and then the release film is peeled off from the adhesive sheet. Preferably, the double-sided adhesive roll is as described above.

[0007] According to a second aspect of the present invention, a bonding method is provided. The bonding method includes the following steps: peeling a pre-release body of the double-sided adhesive roll from the backing tape; operating a release film on the pre-release body and transferring the peeled pre-release body to a predetermined bonding area; firstly, adhering the adhesive sheet of the pre-release body to an optocoupler located in the bonding area using the release film on the pre-release body, and then peeling the release film off the adhesive sheet.

[0008] The adhesive device and method described above can automatically attach the adhesive film of the double-sided adhesive roll to the optocoupler, realizing an automated adhesive operation. Compared with the existing manual adhesive method, this automated adhesive operation has the advantages of high adhesive efficiency and high adhesive quality stability. Attached Figure Description

[0009] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0010] Figure 1 A schematic diagram of the structure of a double-sided film roll according to Embodiment 1 of the present invention is shown;

[0011] Figure 2 A partial side view of a double-sided film roll according to Embodiment 1 of the present invention is shown;

[0012] Figure 3 An assembly schematic diagram of an optocoupler according to Embodiment 2 of the present invention is shown;

[0013] Figure 4 A schematic diagram of the adhesive device according to Embodiment 3 of the present invention is shown;

[0014] Figure 5 It shows Figure 4 A schematic diagram of the peeling device in the adhesive bonding equipment;

[0015] Figure 6 It shows Figure 4 Another structural schematic diagram of the peeling device of the adhesive bonding equipment;

[0016] Figure 7 It shows Figure 4 Another structural schematic diagram of the peeling device of the adhesive bonding equipment;

[0017] Figure 8 It shows Figure 5 A schematic diagram of the stripping mechanism of the middle stripping device;

[0018] Figure 9 It shows Figure 4 A schematic diagram of the adhesive device in the adhesive applicator;

[0019] Figure 10 It shows Figure 9 A schematic diagram of the suction mechanism of the adhesive device;

[0020] Figure 11 The diagram shows the usage status of the vacuum suction cup and the elastic pressure block during bonding.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Strip; 11. Bottom strip; 12. Pre-detachment body; 121. Adhesive sheet; 121a. First surface; 121b. Second surface; 122. Release film; 122a. Connecting part; 122b. Operating part; 2. Optocoupler; 3. Peeling device; 31. Frame; 32. Release shaft; 33. Peeling mechanism; 331. Peeling plate; 332. Pressure plate; 333. Receiving plate; 333a. Clearance hole; 334. Groove; 335. Guide gap; 34. Recycling shaft; 35. Drive mechanism; 36. 1. Motor; 352. Belt drive assembly; 353. Belt drive assembly; 4. Adhesive device; 41. Robotic arm; 42. Suction mechanism; 421. Linear drive assembly; 422. Elastic pressure block; 423. Vacuum suction cup; 5. Sensor; 6. Adjustment bracket; 61. Slide plate; 62. Fixing base; 63. Guide rod; 64. Lead screw; 65. Knob; 7. First pressure roller; 8. Second pressure roller; 9. Active traction wheel; 10. Driven traction wheel; 13. Recycling mechanism; 14. Positioning mold; 15. Conveying mechanism. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] <Example 1>

[0025] The double-sided film provided in this embodiment will be described in detail below:

[0026] According to a first embodiment of the present invention, a double-sided film is provided. For example... Figure 1 As shown, the double-sided film roll is formed by winding a strip 1. The strip 1 includes a base strip 11 and a plurality of pre-release bodies 12 spaced apart along the length of the base strip 11. Figure 2As shown, each pre-release body 12 includes an adhesive sheet 121 and a release film 122. In any pre-release body 12, the adhesive sheet 121 includes a first surface 121a bonded to the side surface of the base strip 11 and a second surface 121b opposite to the first surface 121a. The release film 122 is adhered to the second surface 121b of the adhesive sheet 121 and can completely cover the second surface 121b of the adhesive sheet 121. This allows the double-sided adhesive roll formed by winding the strip 1 to be adapted to the bonding equipment, facilitating the automatic peeling of the pre-release body 12 during the release process of the strip 1. In detail, this double-sided tape is equivalent to adding a release film 122 to the existing double-sided tape, which is bonded to the adhesive sheet 121. The release film 122 and the adhesive sheet 121 are used as pre-detachable bodies 12 that can be detached from the base tape 11, making the double-sided tape suitable for automated bonding. This ensures that the bonding equipment described below can automatically bond the adhesive sheet of the double-sided tape to the object to be bonded (e.g., optocoupler 2), thereby achieving automated bonding operations and improving bonding efficiency and bonding quality stability.

[0027] In fact, the specifications of the multiple adhesive sheets 121 can be one or more. It should be noted that the specifications here generally include shape, size, and material. In this embodiment, the specifications of the multiple adhesive sheets 121 are designed to be one, making the adhesive sheet 121 suitable for large-scale automated packaging, thereby ensuring the consistency of the packaged products. Of course, when a production line simultaneously produces products of different specifications, the specifications of the multiple adhesive sheets 121 can also be designed to be multiple, allowing the multiple adhesive sheets to be suitable for different packaging objects or different packaging requirements during automated packaging, thus improving the applicability of the adhesive sheet 121.

[0028] In Example 1, as Figure 2 As shown, in any pre-release body 12, the release film 122 includes a connecting portion 122a and an operating portion 122b connected to the connecting portion 122a. In the finished product, the adhesive sheet 121 is only connected to the connecting portion 122a of the release film 122, that is, the connecting portion 122a just covers the adhesive sheet 121, mainly providing good protection for the adhesive sheet 121. The operating portion 122b is used to facilitate the operator or operating equipment, such as the pasting device described below, to peel the pre-release body 12 from the base tape 11, and to assist the operator or operating equipment in performing the pasting operation of the adhesive sheet 121 to the optocoupler 2 and the peeling operation of the release film 122 from the adhesive sheet 121.

[0029] In Example 1, as Figure 1As shown, in any pre-release body 12, the release film 122 and the adhesive sheet 121 have the same dimensions in the first direction of the base strip 11, while the dimensions of the release film 122 in the second direction of the base strip 11 are larger than the dimensions of the adhesive sheet 121 in the second direction of the base strip 11. One of the first and second directions is the length direction of the base strip, and the other is the width direction of the base strip. In this way, the pre-release body 12 is more suitable for the suction and transfer of the adhesive device described below.

[0030] Preferably, in any pre-release body 12, the release film 122 and the adhesive sheet 121 have the same dimensions in the first direction of the base strip 11, and the dimensions of the release film 122 in the second direction of the base strip 11 are 1.8 to 2.2 times larger than the dimensions of the adhesive sheet 121 in the second direction of the base strip 11. Extensive experimental verification has shown that when the dimensions of the release film 122 in the second direction of the base strip 11 are 1.8 to 2.2 times larger than the dimensions of the adhesive sheet 121 in the second direction of the base strip 11, the release film 122 facilitates the bonding operation of the adhesive sheet 121 and the optocoupler 2 using a bonding device. Preferably, based on this size limitation, both the release film 122 and the adhesive sheet 121 are chosen to be rectangular. This allows the release film 122 to better facilitate the bonding equipment in bonding the adhesive sheet 121 to the optocoupler 2. If the ratio is increased further, it will not significantly help simplify the operation and will significantly increase the manufacturing cost of the double-sided film. If the ratio is decreased further, bonding the adhesive sheet 121 to the optocoupler 2 will become difficult.

[0031] It should be noted that the shape and size of the release film 122 and the adhesive sheet 121 should be determined according to the application scenario and usage requirements, and are not limited to the size and shape limitations specified in the above embodiments. Those skilled in the art can make other choices according to actual needs. For example, the shape of the release film 122 and the adhesive sheet 121 can be selected as a rectangle, circle, square, triangle or irregular shape, etc.

[0032] In Embodiment 1, the base tape 11 can be made of glassine paper, and the release film 122 can also be made of release paper. Both the glassine paper and the release paper can prevent the adhesive sheet 121 from sticking to them. The glassine paper and the release paper, which are respectively bonded to both sides of the adhesive sheet 121, can provide good protection for the adhesive sheet 121, avoiding contamination of the adhesive sheet 121 by external impurities, and preventing the adhesive sheet 121 from breaking or being damaged under external force, thereby affecting the sealing effect of the adhesive sheet.

[0033] In Embodiment 1, the peel force between the adhesive sheet 121 and the release film 122 is greater than or equal to the peel force between the adhesive sheet 121 and the base tape 11, but less than the peel force between the adhesive sheet 121 and the object to be bonded (e.g., an optocoupler). In this embodiment, the peel force between the adhesive sheet 121 and the release film 122 is controlled to be greater than or equal to the peel force between the adhesive sheet 121 and the base tape 11. This ensures that when the pre-release body 12 is peeled off from the base tape 11, the pre-release body 12 can be reliably peeled off from the base tape 11, and that the release film 122 can be reliably bonded to the adhesive sheet 121. This avoids premature peeling of the release film 122 and the adhesive sheet 121 before the pre-release body 12 is bonded to the object to be bonded. The peel force between the adhesive sheet 121 and the release film 122 is controlled to be less than the peel force between the adhesive sheet 121 and the object to be bonded. This ensures that, after the pre-release body 12 is attached to the object to be bonded, during the process of peeling the release film 122 and the adhesive sheet 121, the release film 122 can be reliably peeled off from the adhesive sheet 121, and the adhesive sheet 121 can be reliably bonded to the object to be bonded. This prevents the release film 122 from pulling the adhesive sheet 121 off from the object to be bonded during the peeling process.

[0034] <Example 2>

[0035] The double-sided film provided in Embodiment 1 above is applied to the optocoupler 2 provided in this embodiment to encapsulate the optocoupler 2 to a certain extent. The optocoupler 2 provided in this embodiment will be described in detail below:

[0036] According to a second embodiment of the present invention, an optocoupler 2 is provided. For example... Figure 3 As shown, the optocoupler 2 includes an adhesive sheet 121 disposed on a selected surface thereon. The adhesive sheet 121 is preferably an adhesive sheet 121 from the double-sided film of Embodiment 1. In this embodiment, the optocoupler 2 is partially encapsulated by bonding the adhesive sheet 121 from Embodiment 1 to the optocoupler 2. The optocoupler 2 should have higher production efficiency due to its inclusion of the adhesive sheet 121 from the aforementioned double-sided film.

[0037] In Embodiment 2, the peel force between the adhesive sheet 121 and the release film 122 is greater than or equal to the peel force between the adhesive sheet 121 and the base tape 11, but less than the peel force between the adhesive sheet 121 and the optocoupler. In this embodiment, the peel force between the adhesive sheet 121 and the release film 122 is controlled to be greater than or equal to the peel force between the adhesive sheet 121 and the base tape 11. This ensures that when the pre-release body 12 is peeled off from the base tape 11, the pre-release body 12 can be reliably peeled off from the base tape 11, and the release film 122 can be reliably adhered to the adhesive sheet 121. This avoids premature peeling of the release paper and the adhesive sheet 121 before the pre-release body 12 is adhered to the optocoupler 2. By controlling the peel force between the adhesive sheet 121 and the release film 122 to be less than the peel force between the adhesive sheet 121 and the optocoupler, it is possible to ensure that, after the pre-release body 12 is attached to the optocoupler 2, during the peeling process of the release paper and the adhesive sheet 121, the release paper can be reliably peeled off from the adhesive sheet 121, and the adhesive sheet 121 can be reliably adhered to the optocoupler 2. This avoids the problem of the release paper pulling the adhesive sheet 121 off the optocoupler 2 during the peeling process, which would cause the encapsulation to fail.

[0038] <Example 3>

[0039] The pasting device provided in this embodiment can be used to paste the adhesive sheet of the double-sided adhesive roll provided in Embodiment 1 above onto the optocoupler 2. The pasting device provided in this embodiment will be described in detail below:

[0040] According to a third embodiment of the present invention, an adhesive device is provided. For example... Figure 4 As shown, the bonding device includes a peeling device 3 and a bonding device 4. The peeling device 3 is used to carry the double-sided film roll, release the strip 1 of the double-sided film roll, and peel the pre-release body 12 of the strip 1 from the base strip 11 of the strip 1. The bonding device 4 is connected to or adjacent to the peeling device 3, and is used to operate on the release film 122 of the pre-release body 12 and transfer the peeled pre-release body 12 to a predetermined bonding area. Then, the release film 122 operating on the pre-release body 12 first adheres the adhesive sheet 121 of the pre-release body 12 to the optocoupler 2 located in the bonding area, and then peels the release film 122 off the adhesive sheet 121.

[0041] In other words, the adhesive device can automatically attach the adhesive film of the double-sided adhesive roll to the optocoupler 2, realizing an automated adhesive operation. Compared with the existing manual adhesive method, this automated adhesive operation has the advantages of high adhesive efficiency and high adhesive quality stability.

[0042] In Example 3, as Figure 5 , Figure 6 and Figure 7As shown, the peeling device 3 includes a frame 31, a release shaft 32 rotatably mounted on the frame 31, and a recovery shaft 34 rotatably mounted on the frame 31. The release shaft 32 is capable of carrying the double-sided film roll and releasing the strip 1 of the double-sided film roll as described in Embodiment 1. To reliably carry the double-sided film roll, a fixing component can be added to the release shaft 32. This fixing component may include a fixing turntable fixed to the release shaft 32 and a locking member sleeved on the release shaft 32 and capable of being fixed at an axial position selectable on the release shaft 32. The locking member may be a chuck structure or a nut structure that is threaded into the release shaft 32. In use, first remove the locking element from the release shaft 32, then place the double-sided adhesive tape onto the release shaft 32 and abut it against the fixed turntable. Next, reinstall the locking element onto the release shaft 32, allowing the locking element and the fixed turntable to clamp the double-sided adhesive tape, preventing it from detaching from the release shaft 32 while also preventing it from rotating relative to the release shaft 32. The recovery shaft 34 is used to recover the bottom strip 11 after the pre-detachment body 12 has been peeled off. Initially, the bottom strip 11 needs to be wound around the pre-detachment body 12 at least once, or a structure can be provided on the recovery shaft 34 to adhere or snap onto the end of the bottom strip 11, ensuring that the bottom strip 11 can be continuously wound around the recovery shaft 34.

[0043] The stripping device 3 also includes a stripping mechanism 33 mounted on the frame 31. The stripping mechanism 33 is used to reverse the direction of the released strip 1 and simultaneously peel the pre-detached body 12 of the strip 1 from the bottom strip 11 of the strip 1, ensuring that the recovery shaft 34 can continuously recover the bottom strip 11 that has been reversed by the stripping mechanism 33. (Illustratively, as shown...) Figure 8As shown, the peeling mechanism 33 includes a peeling plate 331 and a pressure plate 332 stacked on the frame 31, and a receiving plate 333 located on the frame 31 and on the side of the peeling plate 331 away from the release shaft 32. Grooves 334 are provided on the peeling plate 331 and / or the pressure plate 332 to form a guide gap 335 between the peeling plate 331 and the pressure plate 332, allowing the strip 1 to pass through. The pressure plate 332 is positioned higher than the peeling plate 331, and the peeling plate 331 is positioned no lower than the receiving plate 333. The distance between the receiving plate 333 and the peeling plate 331 is less than the dimension of the pre-detached body 12 in the length direction of the bottom strip 11. During the release of the double-sided adhesive strip 1 by the release shaft 32, the guide slit 335 guides the released double-sided adhesive strip past the peeling plate 331 away from the end of the release shaft 32. This end not only guides the strip 1 to change direction from the travel direction S1 (the change range is close to but less than 180 degrees, so as to facilitate the peeling of the pre-detachment body 12 and make full use of the longitudinal space, reducing the space occupied by the pasting equipment in the horizontal direction) to the travel direction S2 and towards the recovery shaft 34, but also peels the pre-detachment body 12 from the bottom strip 11 and guides the peeled pre-detachment body 12 to slide into the receiving plate 333. In order to reduce the risk of the adhesive sheet 121 of the pre-detachment body 12 sticking to the receiving plate 333, the surface of the receiving plate 333 used to receive the pre-detachment body 12 may be provided with an anti-stick coating. This anti-stick coating is preferably a Teflon coating.

[0044] like Figure 6 As shown, the peeling device 3 also includes a drive mechanism 35 mounted on the frame 31, which drives the recovery shaft 34 to rotate. When the recovery shaft 34 is driven by the drive mechanism 35, the recovery shaft 34 can pull the bottom tape 11 to cause the release shaft 32 to rotate and release the strip 1 from the double-sided film roll while simultaneously winding it. Schematably, the drive mechanism 35 may include a motor 351 fixed on the frame 31, and a belt drive assembly 352 connecting the recovery shaft 34 and the motor 351. Under the action of the belt drive assembly 352, the motor 351 drives the recovery shaft 34 to rotate, thereby pulling the bottom tape 11 to cause the release shaft 32 to rotate and release the strip 1 from the double-sided film roll while simultaneously winding it.

[0045] In Example 3, as Figure 8As shown, the bonding device also includes a sensor 5 mounted on the frame 31, a clearance hole 333a mounted on the receiving plate 333, and a control unit connected to the sensor 5, the bonding device 4, and the peeling device 3 via a motor 351. The sensor 5 can be a photoelectric switch or an infrared ranging sensor, etc. The sensor 5 can sense whether the pre-detached body 12 has reached the receiving plate 333 through the clearance hole 333a. The control unit can control the bonding device 4 and the peeling device 3 to operate collaboratively based on the detection result of the sensor 5. For example, when the peeling device 3 is running continuously, if the pre-detached body 12 reaches the receiving plate 333, the sensor 5, acting as a photoelectric switch, will generate an electrical signal. The control unit will then activate the bonding device 4 in response to the generation of the electrical signal from the sensor 5. Regarding the coordinated operation of the pasting device 4 and the peeling device 3, specifically: when the peeling device 3 continuously peels the pre-detached body 12 from the bottom belt 11, the control unit determines whether the pre-detached body 12 has slid into the receiving plate 333 based on the detection result of the sensor 5, and when the determination result is yes, the pasting device 4 is started to sequentially perform the removal, pasting and peeling of the pre-detached body 12, thereby realizing the coordinated operation of the pasting device 4 and the peeling device 3.

[0046] The control unit includes a control module, which includes a circuit board and a processor (such as a PLC or CPU), memory, and electronic components connected to the processor, all of which are well known to those skilled in the art and will not be described in detail here. It should be noted that the number of control modules is not limited and can be adjusted or selected according to actual needs. For example, the control unit can be split into two control modules, each capable of performing different tasks of the control unit and communicating and cooperating to complete one or more tasks when necessary.

[0047] In embodiment three, the bonding device also includes an adjustment bracket 6 for mounting the sensor 5 on the frame 31. Figure 8As shown, the adjustment bracket 6 includes a slide plate 61 for mounting the sensor 5, a fixed base 62 on the frame 31, a guide rod 63 fixed on the fixed base 62 and passing through the slide plate 61, and a linear drive mechanism on the fixed base 62 for adjusting the position of the slide plate 61 and the sensor 5. The clearance hole 333a is a strip-shaped hole extending along a preset direction and parallel to the guide rod 63, the preset direction being the direction in which the pre-detached body 12 slides on the receiving plate 333. As an example, the linear drive mechanism includes a threaded hole on the slide plate 61, a lead screw 64 rotatably mounted on the fixed base 62 and engaging with the threaded hole, and a knob 65 at the end of the lead screw 64. The knob 65 can be operated to drive the slide plate 61 to move on the guide rod 63 through the engagement of the lead screw 64 and the threaded hole, thereby adjusting the position of the sensor 5 relative to the clearance hole 333a, thus enabling the sensor 5 to be in an accurate detection position and improving the detection accuracy of the sensor 5. Meanwhile, the adjustment bracket 6 provides a reliable and stable mounting position for the sensor 5, improving the stability of the sensor 5 during operation. It is worth noting that the linear drive mechanism described above is not limited to the example above and can also be other types, such as a pneumatic cylinder or a linear motor.

[0048] In Example 3, as Figure 5 As shown, the bonding device may further include a first pressure roller 7 rotatably mounted on the frame 31 and located between the release shaft 32 and the peeling mechanism 33. The first pressure roller 7 is configured to contact the strip 1 and guide the strip 1 into the guide gap 335. The arrangement of the first pressure roller 7 reduces the entry angle of the strip 1 relative to the guide gap 335, thereby allowing the strip 1 to enter the guide gap 335 more smoothly and preventing the pre-detachment body 12 on the base strip 11 from being accidentally peeled or scratched when entering the guide gap 335 due to an excessively large entry angle.

[0049] In embodiment three, the bonding device may further include a second pressure roller 8 rotatably mounted on the frame 31 and located between the peeling mechanism 33 and the recovery shaft 34, and an active traction wheel 9 and a driven traction wheel 10 fixedly mounted on the frame 31 and arranged sequentially along the direction from the second pressure roller 8 to the recovery shaft 34. The second pressure roller 8, the active traction wheel 9, and the driven traction wheel 10 all contact the strip 1, especially the bottom strip 11 of the strip 1. The second pressure roller 8 guides the bottom strip 11 towards the active traction wheel 9. The second pressure roller 8 guides the reversed bottom strip 11, allowing it to move more smoothly towards the active traction wheel 9. The active traction wheel 9 is positioned higher than the driven traction wheel 10, enabling both the active traction wheel 9 and the driven traction wheel 10 to contact the strip 1 and force the strip 1, especially the bottom strip 11, to bend twice, thus tensioning the bottom strip 11. The active traction wheel 9 assists the recovery shaft 34 in pulling the bottom belt 11 to cause the release shaft 32 to rotate and release the strip 1 from the double-sided film, and always provides power for the strip 1 to operate in the pasting device.

[0050] As an example, both the active traction wheel 9 and the driven traction wheel 10 include spaced-apart drag frames and rubber rollers, and a belt fitted over the drag frames and rubber rollers and in contact with the bottom belt 11. In the active traction wheel 9, the rubber rollers can be driven by a drive mechanism 35, such as a motor 351 driving the rubber rollers to rotate via a belt drive assembly 353, so that the belt runs on the drag frames and rubber rollers and drives the bottom belt 11 in contact with them to produce a corresponding movement, thereby achieving auxiliary drive of the bottom belt 11. In the driven traction wheel 10, the bottom belt 11 can drive the belt to run on the drag frames and rubber rollers to prevent dynamic friction of the bottom belt 11 on the driven traction wheel 10 and reduce the risk of wear or breakage of the bottom belt 11. The rubber rollers of the driven traction wheel 10 are preferably eccentric rollers with adjustable rotation angles, thereby adjusting the tension of the bottom belt 11 in the bonding device 4 by changing the angle of the eccentric rollers.

[0051] In Example 3, as Figure 9 As shown, the adhesive device 4 includes a robotic arm 41 and a suction mechanism 42 connected to and driven by the robotic arm 41, wherein the suction mechanism 42 is used to pick up, press, and release the release film 122. Schematic, as shown... Figure 10 As shown, the suction mechanism 42 includes a linear drive assembly 421 connected to the robotic arm 41, an elastic pressure block 422 disposed on the linear drive assembly 421, and a vacuum suction cup 423 disposed on the linear drive assembly 421. The linear drive assembly 421 includes a sliding cylinder or an electromagnetic push rod. The elastic pressure block 422 is a silicone block or a rubber block.

[0052] In use, when the robotic arm 41 moves the suction mechanism 42 above the receiving plate 333, the linear drive assembly 421 or the robotic arm 41 drives the vacuum suction cup 423 and the elastic pressure block 422 to abut against the release film 122, so that the vacuum suction cup 423 picks up a portion of the release film 122 in the pre-release body 12 on the receiving plate 333, and the elastic pressure block 422 is forced to contact another portion of the release film 122 in the pre-release body 12. When the robotic arm 41 moves the suction mechanism 42 and the pre-release body 12 to the pasting area and reaches above the optocoupler 2, the linear drive assembly 421 or the robotic arm 41 can drive the vacuum suction cup 423, the elastic pressure block 422 and the pre-release body 12 to approach the optocoupler 2 and make the pre-release body 12 contact the optocoupler 2. The vacuum suction cup 423 and the elastic pressure block 422 jointly apply pressure to the release film 122 in the pre-release body 12 and paste the adhesive sheet 121 of the pre-release body 12 onto the optocoupler 2. When the linear drive assembly 421 or the robotic arm 41 drives the vacuum chuck 423 and the elastic block 422 away from the optocoupler 2, the vacuum chuck 423 can peel the release film 122 of the pre-release body 12 from the adhesive sheet 121 of the pre-release body 12.

[0053] For example, during the suction process, the vacuum suction cup 423 can pick up a portion of the operating part 122b and the connecting part 122a of the release film 122 from the receiving plate 333, and allow the elastic pressure block 422 to contact the portion of the connecting part 122a of the release film 122 that is not picked up by the vacuum suction cup 423, as detailed in [link to details]. Figure 11 Therefore, the vacuum chuck 423 needs to pick up not only the operating part 122b of the release film 122, but also a portion of the connecting part 122a of the release film 122. This facilitates the vacuum chuck 423 in peeling the release film 122 of the pre-release body 12 from the adhesive sheet 121 of the pre-release body 12. In addition, the elastic pressure block 422 can contact the connecting part 122a of the release film 122 in the pre-release body 12, ensuring that the elastic pressure block 422 can fully press the pre-release body 12 with the assistance of the vacuum chuck 423, ensuring that the adhesive sheet 121 of the pre-release body 12 can be firmly attached to the optocoupler 2.

[0054] In Embodiment 3, the elastic pressure block 422 includes a pressure surface, while the vacuum suction cup 423 includes a suction surface that is coplanar with and adjacent to the pressure surface. In this way, the pressure surface of the elastic pressure block 422 and the suction surface of the vacuum suction cup 423 can almost simultaneously contact the release film 122 in the pre-release body 12, ensuring that the pressure surface of the elastic pressure block 422 prevents bending and damage to the pre-release body 12 when the vacuum suction cup 423 picks up the release film 122. Experiments have verified that the deformability of the elastic pressure block 422 and the vacuum suction cup 423 in the direction perpendicular to the pressure surface or suction surface is not less than 0.3 mm, and when the area of ​​the pressure surface is 0.9-1 times the area of ​​the suction surface, the elastic pressure block 422 and the vacuum suction cup 423 can together more firmly and evenly attach the adhesive sheet 121 of the pre-release body 12 to the optocoupler 2. In addition, the elastic pressure block 422 and the vacuum suction cup 423 can attract and completely cover the pre-detachment body 12, thereby ensuring that the elastic pressure block 422 and the vacuum suction cup 423 act completely on the pre-detachment body 12, so that the pre-detachment body 12 remains fixed and is stably transferred from the receiving plate 333 to the optocoupler 2.

[0055] In Example 3, as Figure 4 As shown, the adhesive bonding device also includes a recycling mechanism 13 for receiving the release film 122 discarded by the adhesive bonding device 4, and a conveying mechanism 15 for conveying the positioning molds 14 one by one to the bonding area. Figure 3 As shown, the positioning mold 14 contains an optocoupler 2. The recycling mechanism 13 can be an open container for recycling used release paper. The positioning mold 14 can position the optocoupler 2, preventing movement that is detrimental to adhesion during the pasting process. Exemplarily, the conveying mechanism 15 can be a belt conveyor or a roller conveyor, but it is recommended to preferably be a belt conveyor or roller conveyor with a locking component. The locking component can be an electromagnetic latch or a cylinder-driven baffle. When the conveying mechanism 15 conveys the positioning mold 14 to the pasting area, the electromagnetic latch or electric baffle can be used to temporarily lock the positioning mold 14 entering the pasting area, preventing movement that is detrimental to adhesion within the pasting area.

[0056] As a preferred example, such as Figure 2 and Figure 9As shown, the positioning mold 14 can be symmetrically equipped with two optocouplers 2, and the robotic arm 41 can also be equipped with two suction mechanisms 42. When the robotic arm 41 moves the two suction mechanisms 42 above the receiving plate 333, each suction mechanism 42 can pick up one pre-release body 12. When the robotic arm 41 moves the two suction mechanisms 42 and the two pre-release bodies 12 to the pasting area and reaches above the positioning mold 14, the two suction mechanisms 42 can first stick the adhesive sheet 121 of the corresponding pre-release body 12 to the two optocouplers 2 at the same time, and then peel the corresponding release film 122 from the corresponding adhesive sheet 121.

[0057] The working process of the adhesive device provided in Embodiment 3 will be described below by way of example:

[0058] The double-sided film roll is placed on the release shaft 32 of the peeling device 3, and the bottom strip 11 of the double-sided film roll is sequentially arranged on the first pressure roller 7, the guide gap 335, the second pressure roller 8, the active traction wheel 9, the driven traction wheel 10 and the recovery shaft 34. The control unit activates the peeling device 3 and the conveying mechanism 15. The recovery shaft 34 and the active traction wheel 9 are driven by the drive mechanism 35 to rotate, pulling the bottom belt 11 in the peeling device 3 and causing the release shaft 32 to rotate to release the strip 1 from the double-sided film. When the strip 1 passes the peeling mechanism 33, it is forced to reverse direction, allowing the peeling mechanism 33 to peel the pre-detached body 12 from the bottom belt 11 onto the receiving plate 333. At this time, the sensor 5 generates an electrical signal and inputs it to the control unit. Based on the electrical signal, the control unit activates the pasting device 4. The robotic arm 41 drives the suction mechanism 42 to move to the receiving plate 333 and controls the suction mechanism 42 to move towards the receiving plate 333 so that the vacuum suction cup 423 in the suction mechanism 42 picks up the pre-detached body 12. The robotic arm 41 drives the suction mechanism 42 and the pre-release body 12 to the predetermined pasting area. At this time, the conveying mechanism 15 also conveys the optocoupler 2 to the predetermined pasting area through the positioning mold 14. Then, the linear drive assembly 421 drives the vacuum suction cup 423, the elastic pressure block 422 and the pre-release body 12 to approach the optocoupler 2, so that the vacuum suction cup 423 and the elastic pressure block 422 jointly apply pressure to the release film 122 in the pre-release body 12 and attach the adhesive sheet 121 of the pre-release body 12 to the optocoupler 2. Then, the linear drive assembly 421 drives the vacuum suction cup 423 and the elastic pressure block 422 away from the optocoupler 2. The vacuum suction cup 423 can peel the release film 122 of the pre-release body 12 from the adhesive sheet 121 of the pre-release body 12. Finally, the robotic arm 41 moves the suction mechanism 42 and the release film 122 held by the suction mechanism 42 to the recycling mechanism 13. The suction mechanism 42 releases the release film 122 into the recycling mechanism 13, and then stops the pasting device 4 so that it can be restarted based on the electrical signal of the sensor 5 to achieve continuous production.

[0059] Example 4

[0060] The adhesive method provided in this embodiment can attach the adhesive sheet of the double-sided adhesive roll provided in Embodiment 1 to the optocoupler 2. The adhesive method provided in this embodiment will be described in detail below:

[0061] According to a fourth embodiment of the present invention, an adhesive bonding method is provided, the method comprising the following steps: peeling the pre-release body 12 of the double-sided adhesive roll in the first embodiment above from the base tape 11; operating the release film 122 on the pre-release body 12 and transferring the peeled pre-release body 12 to a predetermined bonding area; and, the release film 122 operating on the pre-release body 12 first bonding the adhesive sheet 121 of the pre-release body 12 to the optocoupler 2 located in the bonding area, and then peeling the release film 122 from the adhesive sheet 121.

[0062] The bonding method provided in this embodiment can be implemented by the bonding equipment provided in Embodiment 3, or it can be implemented manually. However, since this bonding method uses the double-sided adhesive provided in Embodiment 1, there is no need to perform a cutting operation during the bonding process. Instead, the operation is to peel the pre-detachment body 12 of the strip 1 from the bottom strip 11 of the strip 1. Since the peeling operation is simpler and faster than the cutting operation, the bonding method is more efficient than the existing manual bonding method even if it is implemented manually without relying on automated equipment, especially the bonding equipment mentioned above. However, if it is implemented with automated equipment, especially the bonding equipment mentioned above, it is beneficial to further improve the bonding efficiency and bonding quality stability.

[0063] In the foregoing description of this application, unless otherwise expressly specified and limited, the terms "fixed," "installed," "connected," or "linked" should be interpreted broadly. For example, the term "linked" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can refer to the internal communication of two components or the interaction between two components. Therefore, unless otherwise expressly limited in this application, those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] Furthermore, the terms "first" or "second," etc., used in this application to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, or more, unless otherwise explicitly specified.

[0065] While numerous embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of protection of the invention and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. An apparatus for sticking, characterized by The application relates to a double-sided adhesive tape stripping and sticking device. The device comprises: a frame; a release shaft rotatably arranged on the frame and used for carrying a double-sided adhesive tape and releasing a strip of the double-sided adhesive tape; a stripping mechanism arranged on the frame and used for reversing the released strip and stripping a pre-detaching body of the strip from a bottom tape of the strip; a recovery shaft rotatably arranged on the frame and used for recovering the bottom tape which has been reversed by the stripping mechanism; and a driving mechanism arranged on the frame and used for driving the recovery shaft. The stripping mechanism comprises a stripping plate and a pressing plate arranged in a stack on the frame, and a receiving plate arranged on the frame and located on a side of the stripping plate away from the release shaft, recesses are arranged on the stripping plate and / or the pressing plate to form a guide gap between the stripping plate and the pressing plate for the strip to pass through, and an end of the stripping plate away from the release shaft is arranged to guide the strip which has passed through the guide gap to reverse and move towards the recovery shaft, and to strip the pre-detaching body from the bottom tape and guide the stripped pre-detaching body to slide into the receiving plate. The sticking device comprises a mechanical arm and a suction and pressing mechanism connected to the mechanical arm and driven by the mechanical arm, the suction and pressing mechanism being used for sucking, pressing and releasing the release film. The suction and pressing mechanism comprises a linear driving assembly connected to the mechanical arm, and an elastic pressing block arranged on the linear driving assembly and a vacuum suction disc arranged on the linear driving assembly. When the mechanical arm drives the vacuum suction disc and the elastic pressing block to move to a region where the receiving plate is located and removes the pre-detaching body with the assistance of the linear driving assembly, the vacuum suction disc sucks a part of the release film in the pre-detaching body, and the elastic pressing block contacts another part of the release film in the pre-detaching body. When the mechanical arm drives the vacuum suction disc, the elastic pressing block and the pre-detaching body to move to the sticking region, the linear driving assembly or the mechanical arm drives the vacuum suction disc, the elastic pressing block and the pre-detaching body to move close to the photoelectric coupler and make the pre-detaching body contact the photoelectric coupler, the vacuum suction disc and the elastic pressing block jointly press the release film in the pre-detaching body, and the adhesive piece of the pre-detaching body is attached to the photoelectric coupler. When the linear driving assembly or the mechanical arm drives the vacuum suction disc and the elastic pressing block to move away from the photoelectric coupler, the vacuum suction disc strips the release film of the pre-detaching body from the adhesive piece of the pre-detaching body. ​ ​ 2. The apparatus according to claim 1, wherein The pressing plate is arranged higher than the stripping plate, and the stripping plate is arranged not lower than the receiving plate, wherein the distance between the receiving plate and the stripping plate is less than the size of the pre-detached body in the length direction of the base tape.

3. The apparatus according to claim 1, wherein The receiving plate is provided with a clearance hole, and the adhesive device comprises a sensor arranged on the frame and used for sensing whether the pre-detached body reaches the receiving plate through the clearance hole, and a control unit connected with the sensor, the adhesive device and the stripping device, and used for controlling the adhesive device and the stripping device to operate cooperatively based on the detection result of the sensor.

4. The apparatus according to claim 3, wherein The control unit is configured to determine whether the pre-detached body slides into the receiving plate according to the detection result of the sensor when the stripping device continuously strips the pre-detached body from the base tape, and to start the adhesive device to sequentially perform the taking away, pasting and stripping of the pre-detached body when the determination result is yes.

5. The apparatus according to claim 1, wherein The surface of the receiving plate for receiving the pre-detached body is provided with an anti-sticking coating.

6. The apparatus according to claim 3 or 4, wherein The adjusting bracket comprises a sliding plate for mounting the sensor, a fixed seat arranged on the frame, a guide rod fixedly arranged on the fixed seat and penetrating through the sliding plate, and a linear driving mechanism arranged on the fixed seat and used for adjusting the position of the sliding plate and the sensor, wherein the clearance hole is a strip-shaped hole extending along a preset direction and parallel to the guide rod, and the preset direction is the sliding direction of the pre-detached body on the receiving plate.

7. The application device according to any one of claims 3 to 5, wherein The adhesive device comprises a first pressing roller rotatably arranged on the frame and located between the releasing shaft and the stripping mechanism, and the first pressing roller is arranged in contact with the tape and used for guiding the tape into the guide gap.

8. The apparatus according to any one of claims 1 to 5, wherein The adhesive device comprises a driving traction wheel and a driven traction wheel arranged on the frame and located between the stripping mechanism and the recycling shaft, and the position of the driving traction wheel is higher than that of the driven traction wheel, so that the driving traction wheel and the driven traction wheel can both contact the tape and force the tape to bend twice.

9. The apparatus according to any one of claims 1 to 5, wherein The adhesive device comprises a second pressing roller rotatably arranged on the frame and located between the stripping mechanism and the driving traction wheel, and the second pressing roller contacts the back surface of the tape.

10. The apparatus according to claim 1, wherein The elastic pressing block comprises a pressing surface, and the vacuum suction disc comprises suction surfaces coplanar with the pressing surface and abutting or adjacent to each other.

11. The adhesive device according to claim 10, wherein: the area of the suction surfaces of the elastic pressing block and the vacuum suction disc is equal to the area of the adhesive sheet; the area of the pressing surface is 0.9-1 times the area of the suction surface; and / or the elastic pressing block is a silica gel block or a rubber block.

12. The apparatus according to any one of claims 1 to 5, wherein The adhesive device comprises a recycling mechanism for receiving the release film discarded by the adhesive device, and a conveying mechanism for conveying the positioning mold to the adhesive area one by one, wherein the positioning mold is provided with the optoelectronic coupler.

13. A method of adhering performed using the adhering apparatus according to any one of claims 1 to 12, characterized by, The method comprises the following steps: operating the pre-detached body of the double-sided tape and stripping the pre-detached body from the base tape; operating the release film of the pre-detached body and transferring the stripped pre-detached body to a predetermined adhesive area; The release film of the pre-detaching body is firstly adhered to the photoelectric coupler in the sticking area, and then the release film is peeled off from the adhesive sheet.

14. The method of claim 13, wherein In the pre-detaching body of the double-sided adhesive tape, the size of the release film in the first direction of the bottom tape is the same as that of the adhesive sheet, and the size of the release film in the second direction of the bottom tape is greater than that of the adhesive sheet in the second direction of the bottom tape, one of the first direction and the second direction is the length direction of the bottom tape, and the other is the width direction of the bottom tape.

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