Double-sided tape attaching mechanism

Abstract

The invention relates to a double-sided tape attaching mechanism, comprising a machine base, a left support column, a right support column, a mounting substrate, a tape discharging device, a substrate layer receiving device, a silicone oil paper layer receiving device, a supporting roller and a sticky strip pressing device. The mounting substrate is arranged directly above the machine base. The left support column and the right support column are simultaneously connected between the machine base and the mounting substrate. The tape discharging device is fixed to the top of the left support column. The silicone oil paper layer receiving device is fixed to the top of the right support column. The substrate layer receiving device is fixed to the machine base. The supporting rollers are vertically inserted on the mounting substrate to support and redirect the double-sided tape, the substrate layer and the silicone oil paper layer. The sticky strip pressing device comprises a gluing knife and a gluing knife driving unit. The gluing knife driving unit drives the gluing knife to continuously swing back and forth in a circumferential direction to peel the sticky strip from the substrate layer, and attach the sticky strip to a PCB board under the action of the pressure under the gluing knife.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board gluing, in particular to a double-sided adhesive tape attaching mechanism. Background Art

[0002] Double-sided adhesive tape, also known as adhesive paper or tape, is a roll product made by applying glue on both sides of a substrate. It is composed of release paper, substrate, adhesive layer, etc. and is widely used in electronics, automobiles, home appliances, packaging and other industries. In the preparation process of electronic products, PCB boards are widely used as the support of electronic components. In order to fix and share the ground with the entire system of electronic products, double-sided adhesive or double-sided conductive adhesive needs to be attached to the back of the PCB board.

[0003] At present, in the operation of attaching double-sided tape on the back of PCB boards, manual pasting is often used. Usually, one person pastes the double-sided tape, and the other person tears off the release paper. The two people work together to complete the work. It can be seen that, on the one hand, the efficiency of gluing is extremely low, and the adhesive layer after attachment needs to be trimmed, which leads to a large increase in labor costs; on the other hand, the adhesive layer is exposed to the air for too long, affecting the final attachment quality; on the other hand, in the process of workers tearing off the release paper, the relative position of the adhesive layer is very likely to change, resulting in poor position accuracy after attachment. Therefore, it is urgent for technicians to solve the above problems. Summary of the invention

[0004] Therefore, in view of the above-mentioned existing problems and defects, the designers of the present invention collected relevant information, conducted multiple evaluations and considerations, and continued to experiment and modify after many years of R&D experience in this industry, which ultimately led to the emergence of the double-sided tape attachment mechanism.

[0005] In order to solve the above technical problems, the present invention relates to a double-sided tape attachment mechanism, wherein the double-sided tape is formed by bonding a substrate layer, a silicone oil paper layer and an adhesive strip. The number of adhesive strips is set to be multiple, all of which are sandwiched between the substrate layer and the silicone oil paper layer at the same time, and are adhered at equal intervals along the length extension direction of the substrate layer. The double-sided tape attachment mechanism includes a machine base, a left support column, a right support column, a mounting substrate, a tape unloading device, a substrate layer receiving device, a silicone oil paper layer receiving device, a support roller and an adhesive strip pressing device. The mounting substrate is vertically placed and arranged directly above the machine base. The left support column and the right support column are simultaneously connected between the machine base and the mounting substrate to jointly support the mounting substrate. The tape unloading device is fixed to the top of the left support column to unwind the double-sided tape. The silicone oil paper layer receiving device is fixed to the top of the right support column to rewind the silicone oil paper layer. The substrate layer receiving device is fixed to the machine base to rewind the substrate layer. The number of supporting rollers is set to be multiple, and they are all vertically inserted on the mounting substrate to support and redirect the double-sided tape, the substrate layer, and the silicone oil paper layer. The adhesive strip pressing device is also installed on the mounting substrate, and it includes a glue knife and a glue knife driving unit. The glue knife driving unit drives the glue knife to continuously reciprocate and swing in a circumferential direction to peel the adhesive strip from the substrate layer, and attach the adhesive strip to the PCB board under the action of the pressure under the glue knife.

[0006] As a further improvement of the technical solution of the present invention, the gluing knife driving part includes a rotating member and an electric swing table. The gluing knife and the rotating member are directly connected as one body. The electric swing table is installed at the rear side of the mounting base plate and drives the rotating member to swing back and forth in a circumferential direction.

[0007] As a further improvement of the technical solution of the present invention, the tape unloading device includes a tape unloading reel and a first direct drive motor. The first direct drive motor is used to drive the tape unloading reel to rotate around its center line axis. The substrate layer receiving device includes a substrate layer receiving reel and a second direct drive motor. The second direct drive motor is used to drive the substrate layer receiving reel to rotate around its center line axis. The silicone oil paper layer receiving device includes a silicone oil paper layer receiving reel and a third direct drive motor. The third direct drive motor is used to drive the silicone oil paper layer receiving reel to rotate around its center line axis.

[0008] As a further improvement of the technical solution of the present invention, the double-sided tape attaching mechanism also includes a substrate layer pulling device. The substrate layer pulling device is located downstream of the adhesive strip pressing device and upstream of the substrate layer receiving device. The substrate layer pulling device includes a pulling drum and a rotating motor. The pulling drum performs circumferential rotation around its central axis under the driving force of the rotating motor.

[0009] As a further improvement of the technical solution of the present invention, a front pulling protrusion group and a rear pulling protrusion group are provided on the pulling cylinder. The front pulling protrusion group is composed of a plurality of front pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder. The rear pulling protrusion group is arranged directly behind the front pulling protrusion group, and is composed of a plurality of rear pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder. Prerequisite: Along its length direction, a plurality of front pulling openings and rear pulling openings that are compatible with the front pulling protrusions and rear pulling protrusions are uniformly distributed on the base material layer.

[0010] As a further improvement of the technical solution of the present invention, the double-sided tape attaching mechanism also includes an anti-tilt device. The anti-tilt device includes a plurality of load-bearing columns, a connecting plate, a first rotating bearing and a second rotating bearing. The connecting plate is in a vertical position and is arranged in parallel in front of the mounting base plate. The load-bearing columns are in a flat position and are connected between the mounting base plate and the connecting plate to provide support for the connecting plate. The first rotating bearing and the second rotating bearing are both inserted into the connecting plate and are respectively positioned opposite to the pulling cylinder and the rotating member. The front ends of the pulling cylinder and the rotating member are respectively sleeved in the first rotating bearing and the second rotating bearing, and can freely perform circumferential rotational motion.

[0011] As a further improvement of the technical solution of the present invention, the double-sided tape attaching mechanism also includes a sticky strip position detection device. The sticky strip position detection device is supported by the right support column and is arranged on one side of the sticky strip pressing device. The sticky strip position detection device includes a first support frame and a high-speed CCD camera. The first support frame is detachably fixed to the right support column by means of screws. The high-speed CCD camera is detachably fixed to the first support frame and can be dragged along the front-back direction.

[0012] As a further improvement of the technical solution of the present invention, the adhesive strip position detection device further includes an amplification light source which is also detachably fixed on the first support frame, and whose light projection direction corresponds to the adhesive strip pressing device.

[0013] As a further improvement of the technical solution of the present invention, the double-sided tape attaching mechanism also includes a roll monitoring device. The roll monitoring device is arranged on one side of the tape unwinding device, and includes a distance setting type photoelectric sensor and a second support frame. The second support frame is supported by a left support column to install a fixed distance setting type photoelectric sensor.

[0014] In order to adapt to the PCB board adhesive layer process, the double-sided tape used in the double-sided tape attachment mechanism is specially customized, and the adhesive strips are independent of each other. In this way, after the PCB board is glued, the subsequent adhesive strip cutting and trimming processes are omitted, thereby effectively improving the efficiency of PCB board adhesive layer attachment. In addition, during the movement of the double-sided tape, the adhesive strip is peeled off from the base material layer with the help of a glue knife, and the adhesive strip is directly attached to the PCB board under the action of its downward pressure. At the same time, the base material layer receiving device collects the base material layer, and the silicone oil paper layer receiving device collects the silicone oil paper layer. The above actions have good continuity, thereby further improving the speed of PCB board adhesive layer attachment.

[0015] More importantly, the setting of the glue knife combines the adhesive strip peeling operation and the adhesive strip attaching operation in the same station. On the one hand, it effectively shortens the contact time between the adhesive strip and the external environment; on the other hand, it uses extrusion to achieve the bonding of the adhesive strip and the PCB board. Combining the above two factors, the bonding reliability and relative position stability of the adhesive strip after attaching it to the PCB board are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of the double-sided adhesive tape of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the double-sided tape attaching mechanism in the present invention.

[0019] Figure 3 yes Figure 2 A partial enlarged view of I.

[0020] Figure 4 It is a three-dimensional schematic diagram of the double-sided tape attaching mechanism of the present invention.

[0021] Figure 5 It is also a three-dimensional schematic diagram of the double-sided tape attaching mechanism of the present invention (after hiding the anti-tilt device).

[0022] Figure 6 It is a three-dimensional schematic diagram of the adhesive strip pressing device in the double-sided tape attaching mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional schematic diagram of a substrate layer pulling device in a double-sided adhesive tape attaching mechanism of the present invention.

[0024] Figure 8 It is a three-dimensional schematic diagram of the anti-tilt device in the double-sided tape attaching mechanism of the present invention.

[0025] 1-machine base; 2-left support column; 3-right support column; 4-mounting base plate; 5-tape unloading device; 51-tape unloading roll; 52-first direct drive motor; 6-substrate layer receiving device; 61-substrate layer receiving roll; 62-second direct drive motor; 7-silicone oil paper layer receiving device; 71-silicone oil paper layer receiving roll; 72-third direct drive motor; 8-supporting roller; 9-adhesive strip pressing device; 91-glue knife; 92-glue knife driving unit; 921-rotating part; 922-electric swing table; 10- Base material layer pulling device; 101-pulling cylinder; 1011-front pulling protrusion group; 1012-rear pulling protrusion group; 102-rotating motor; 11-anti-tilting device; 111-load-bearing column; 112-contact plate; 113-first rotating bearing; 114-second rotating bearing; 12-adhesive strip position detection device; 121-first supporting frame; 122-high-speed CCD camera; 123-light enhancement; 13-material roll monitoring device; 131-forming photoelectric sensor; 132-second supporting frame. DETAILED DESCRIPTION

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "left", "right", "up", "down", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] Before describing the structure of the double-sided tape attaching mechanism disclosed in the present invention in detail, first, a brief description of the structure of the double-sided tape is given. Figure 1 As shown in , it is formed by laminating a substrate layer, a silicone oil paper layer and an adhesive strip. The number of adhesive strips is set to multiple, all of which are sandwiched between the substrate layer and the silicone oil paper layer, and are adhered at equal intervals along the length extension direction of the substrate layer. Along its length direction, the substrate layer is evenly distributed with multiple front pulling openings and rear pulling openings.

[0028] Figure 2The schematic diagram of the structure of the double-sided tape attaching mechanism of the present invention is shown. It can be seen that it mainly consists of a machine base 1, a left support column 2, a right support column 3, a mounting substrate 4, a tape unloading device 5, a substrate layer receiving device 6, a silicone oil paper layer receiving device 7, a support roller 8 and an adhesive strip pressing device 9. The mounting substrate 4 is vertically placed and arranged directly above the machine base 1. The left support column 2 and the right support column 3 are simultaneously connected between the machine base 1 and the mounting substrate 4 to jointly support the mounting substrate 4. The tape unloading device 5 is fixed to the top of the left support column 2 to unwind the double-sided tape. The silicone oil paper layer receiving device 7 is fixed to the top of the right support column 3 to rewind the silicone oil paper layer. The substrate layer receiving device 6 is fixed to the machine base 1 to rewind the substrate layer. The number of support rollers 8 is set to be multiple, and they are all vertically inserted on the mounting substrate 4 to support and redirect the double-sided tape, the base material layer, and the silicone oil paper layer. The adhesive strip pressing device 9 is also installed on the mounting substrate 4, and it includes a glue knife 91 and a glue knife driving unit 92. The glue knife driving unit 92 drives the glue knife 91 to continuously swing back and forth in a circumferential direction to peel the adhesive strip from the base material layer, and under the action of the pressure of the glue knife 91, the adhesive strip is attached to the PCB board (such as Figure 3 , 4 , 5, 6, and 7). At the same time, the PCB boards flow through the adhesive strip pressing device 9 in sequence.

[0029] In order to adapt to the process of attaching the adhesive layer of the PCB board, the double-sided tape used in the double-sided tape attachment mechanism is a specially customized double-sided tape, and the adhesive strips are independent of each other. In this way, after the PCB board is glued, the subsequent adhesive strip cutting and trimming processes are omitted, thereby effectively improving the attachment efficiency of the PCB board adhesive layer. In addition, during the movement of the double-sided tape, the adhesive strip is peeled off from the substrate layer with the help of the glue knife 91, and the adhesive strip is directly attached to the PCB board under the action of its downward pressure. At the same time, the substrate layer receiving device 6 collects the substrate layer, and the silicone oil paper layer receiving device 7 collects the silicone oil paper layer. The above actions have good continuity, thereby further improving the speed of attaching the PCB board adhesive layer.

[0030] More importantly, the setting of the adhesive knife 91 combines the adhesive stripping operation and the adhesive strip attaching operation in the same station, which, on the one hand, effectively shortens the contact time between the adhesive strip and the external environment; on the other hand, the adhesive strip and the PCB board are bonded by extrusion. Combining the above two factors, the bonding reliability and relative position stability of the adhesive strip after being attached to the PCB board are ensured.

[0031] In order to ensure that the gluing process is carried out more smoothly and fluently, and to simplify the design structure of the gluing knife driving unit 92 as much as possible, and to facilitate the later maintenance and modification design, the gluing knife driving unit 92 preferably includes a rotating member 921 and an electric swing table 922. The gluing knife 91 is fixedly connected to the rotating member 921 by means of screws. The electric swing table 922 is installed on the rear side of the mounting base 4, and drives the rotating member 921 to swing back and forth (such as Figure 6 ).

[0032] In the double-sided tape attaching mechanism disclosed in the present invention, the tape unwinding device 5, the substrate layer receiving device 6, and the silicone oil paper layer receiving device 7 are all self-powered, making the tape winding and unwinding process more stable. Figure 4 As shown in , the tape unloading device 5 includes a tape unloading roll 51 and a first direct drive motor 52. The first direct drive motor 52 is used to drive the tape unloading roll 51 to perform circumferential rotational motion around its center line axis. The substrate layer receiving device 6 includes a substrate layer receiving roll 61 and a second direct drive motor 62. The second direct drive motor 62 is used to drive the substrate layer receiving roll 61 to perform circumferential rotational motion around its center line axis. The silicone oil paper layer receiving device 7 includes a silicone oil paper layer receiving roll 71 and a third direct drive motor 72. The third direct drive motor 72 is used to drive the silicone oil paper layer receiving roll 71 to perform circumferential rotational motion around its center line axis.

[0033] Here, it should also be noted that by selecting a direct drive motor, it is directly rigidly connected to the central axis of the tape unwinding roll 51, the substrate layer rewinding roll 61, and the silicone oil paper layer rewinding roll 71, without the need for intermediate links such as screw rods, gears, and reducers, thereby avoiding the problems of reverse clearance, inertia, friction, and insufficient rigidity in the transmission screw transmission system to the greatest extent. In addition, more importantly, due to the use of direct drive technology, the error caused by the intermediate mechanical transmission system is greatly reduced, thereby improving the final attachment position accuracy of the adhesive strip on the PCB.

[0034] In order to further improve the system accuracy, the first direct drive motor 52, the second direct drive motor 62 and the third direct drive motor 72 may also use high-precision grating detection for position positioning, which can achieve a repeated positioning accuracy of less than 1 μm.

[0035] It is known that in order to ensure the complete synchronization of the tape winding and unwinding process, it is necessary to strictly control and fine-tune the rotation speed of the tape unwinding device 5, the substrate layer receiving device 6, and the silicone oil paper layer receiving device 7. However, the implementation is difficult, and it is very easy to cause the tape to be "over-tensioned" or "over-relaxed" during the unwinding and winding process, which often causes the adhesive strip to be "stretched" or "laminated", which not only affects the actual adhesion performance of the adhesive strip, but also requires manpower and material resources to cut off the extended part in the future to ensure the regularity of the adhesive strip and the alignment of the adhesion position. In view of this, the double-sided tape attachment mechanism is also provided with a substrate layer pulling device 10 as needed. The substrate layer pulling device 10 is located downstream of the adhesive strip pressing device 9 and upstream of the substrate layer receiving device 6. The substrate layer pulling device 10 includes a pulling cylinder 101 and a rotating motor 102. The pulling cylinder 101 performs circumferential rotational motion around its central axis under the driving force of the rotating motor 102 (such as Figure 2 , 5 In the process of unwinding the adhesive tape, the pulling cylinder 101 continuously rotates at a constant speed, and by means of the friction between the pulling cylinder 101 and the substrate layer, the substrate layer is dragged at a constant speed, so as to compensate the stability of the rotation speed of the adhesive tape unwinding device 5, the substrate layer receiving device 6, and the silicone oil paper layer receiving device 7 in real time.

[0036] As a further optimization of the above technical solution, a front pulling protrusion group 1011 and a rear pulling protrusion group 1012 can also be provided on the pulling cylinder 101. The front pulling protrusion group 1011 is composed of a plurality of front pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder 101. The rear pulling protrusion group 1012 is arranged directly behind the front pulling protrusion group 1011, and is composed of a plurality of rear pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder 101 (such as Figure 7 As shown in ). Prerequisite: Along the length direction, the substrate layer is evenly distributed with a plurality of front pulling openings and rear pulling openings that match the front pulling protrusions and rear pulling protrusions. Compared with the above-mentioned embodiment in which the substrate layer is dragged solely by friction, the method of meshing and dragging the front pulling protrusions and the rear pulling protrusions is more stable and reliable.

[0037] It is known that in the actual operation process of the double-sided tape attaching mechanism, the adhesive strip pressing device 9 and the substrate layer pulling device 10 are subjected to a large drag force, and both are very likely to tilt relative to the mounting substrate 4, thereby affecting the unwinding and unwinding accuracy of the tape, and also reducing the attaching position accuracy of the adhesive strip. In view of this, the double-sided tape attaching mechanism can also be additionally provided with an anti-tilting device 11 (such as Figure 4). The anti-tilt device 11 includes a plurality of load-bearing columns 111, a contact plate 112, a first rotating bearing 113 and a second rotating bearing 114. The contact plate 112 is in a vertical position and is arranged in parallel in front of the mounting base plate 4. The load-bearing columns 111 are in a flat position and are connected between the mounting base plate 4 and the contact plate 112 to provide support for the contact plate 112. The first rotating bearing 113 and the second rotating bearing 114 are both inserted into the contact plate 112 and are respectively positioned relative to the pulling cylinder 101 and the rotating member 921. The front ends of the pulling cylinder 101 and the rotating member 921 are respectively sleeved in the first rotating bearing 113 and the second rotating bearing 114, and can freely rotate in a circumferential direction. In this way, the dragging force exerted on the adhesive strip pressing device 9 and the substrate layer pulling device 10 is borne by the anti-tilt device, thereby effectively ensuring the verticality of the two relative to the mounting base plate 4 (as shown in FIG. 1 ). Figure 8 ).

[0038] Furthermore, as a further optimization of the double-sided tape attaching mechanism structure, a sticky strip position detection device 12 can be added according to customer requirements. The sticky strip position detection device 12 is supported by the right support column 3 and is arranged on one side of the sticky strip pressing device 9. The sticky strip position detection device 12 includes a first support frame 121 and a high-speed CCD camera 122. The first support frame 121 is detachably fixed to the right support column 3 by means of screws. The high-speed CCD camera 122 is detachably fixed to the first support frame 121 and can be dragged along the front-to-back direction (such as Figure 2 , 4 In the operation process of the double-sided tape attaching mechanism, the high-speed CCD camera 122 detects the relative position of the pre-attached adhesive strip in real time. When the position error value exceeds the tolerance, the machine is stopped in time to manually check and adjust the double-sided tape attaching mechanism.

[0039] Of course, in order to expand the application scenarios of the adhesive strip position detection device 12 and improve the imaging quality of the high-speed CCD camera 122, it can also be equipped with an enhanced light source 123. The enhanced light source 123 can also be detachably fixed to the first support frame 121, and its light projection direction corresponds to the adhesive strip pressing device 9 (such as Figure 4 ).

[0040] Finally, it should be noted that the double-sided tape attaching mechanism is further provided with a roll monitoring device 13. The roll monitoring device 13 is arranged on one side of the tape unwinding device 5, and includes a distance setting type photoelectric sensor 131 and a second support frame 132. The second support frame 132 is supported by the left support column 2 and is used to install a fixed distance setting type photoelectric sensor 131 (such as Figure 2 , 4The distance setting photoelectric sensor 131 can measure the remaining amount of tape on the tape unwinding roll 51 in real time through distance sensing. When the sensed distance value is less than the set value, a stop signal is immediately sent to the double-sided tape attaching mechanism and the PCB board conveying mechanism to avoid the occurrence of "idle running" phenomenon.

[0041] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-sided tape attachment mechanism, wherein the double-sided tape is formed by laminating a substrate layer, a silicone oil paper layer and an adhesive strip; the number of adhesive strips is set to be multiple, all of which are sandwiched between the substrate layer and the silicone oil paper layer at the same time, and are adhered at equal intervals along the length extension direction of the substrate layer; characterized in that: The double-sided tape attaching mechanism includes a machine base, a left support column, a right support column, a mounting base, a tape unloading device, a base material layer receiving device, a silicone oil paper layer receiving device, a support roller and an adhesive strip pressing device; the mounting base is in a vertical position and is arranged directly above the machine base; the left support column and the right support column are simultaneously connected between the machine base and the mounting base to jointly support the mounting base; the tape unloading device is fixed to the top of the left support column to unwind the double-sided tape; the silicone oil paper layer receiving device is fixed to the top of the right support column end, for rolling up the silicone oil paper layer; the substrate layer receiving device is fixed on the machine base, for rolling up the substrate layer; the number of the supporting rollers is set to be multiple, and they are all vertically inserted on the mounting base plate, so as to support and redirect the double-sided tape, the substrate layer, and the silicone oil paper layer; the adhesive strip pressing device is also installed on the mounting base plate, and it includes a glue knife and a glue knife driving unit; the glue knife driving unit drives the glue knife to continuously reciprocate and circumferentially swing, so as to peel the adhesive strip from the substrate layer, and attach the adhesive strip to the PCB board under the action of the downward pressure of the glue knife; The gluing knife driving part includes a rotating member and an electric swing table; the gluing knife is directly connected to the rotating member as a whole; the electric swing table is installed on the rear side of the mounting base plate and drives the rotating member to swing back and forth in a circumferential direction; The double-sided tape attaching mechanism also includes a substrate layer pulling device; the substrate layer pulling device is located downstream of the adhesive strip pressing device and upstream of the substrate layer receiving device; the substrate layer pulling device includes a pulling cylinder and a rotating motor; the pulling cylinder performs circumferential rotation around its central axis under the driving force of the rotating motor; Along the length direction thereof, a plurality of front drawing openings and rear drawing openings are evenly distributed on the substrate layer; A front pulling protrusion group and a rear pulling protrusion group are arranged on the pulling cylinder; The front pulling protrusion group is composed of a plurality of front pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder and adapted to the front pulling openings; the rear pulling protrusion group is arranged directly behind the front pulling protrusion group, and is composed of a plurality of rear pulling protrusions uniformly distributed circumferentially around the outer wall of the pulling cylinder and adapted to the rear pulling openings; The double-sided tape attaching mechanism also includes an anti-tilt device; the anti-tilt device includes multiple load-bearing columns, a connecting plate, a first rotating bearing and a second rotating bearing; the connecting plate is in a vertical position and is arranged in parallel in front of the mounting base plate; the load-bearing columns are flat and are both connected between the mounting base plate and the connecting plate to provide support for the connecting plate; the first rotating bearing and the second rotating bearing are both inserted into the connecting plate and are respectively positioned relative to the pulling cylinder and the rotating member; the front ends of the pulling cylinder and the rotating member are respectively sleeved in the first rotating bearing and the second rotating bearing, and can freely perform circumferential rotation movement.

2. The double-sided tape attaching mechanism according to claim 1, characterized in that: The tape unloading device includes a tape unloading roll and a first direct drive motor; the first direct drive motor is used to drive the tape unloading roll to rotate around its center line axis; the substrate layer receiving device includes a substrate layer receiving roll and a second direct drive motor; the second direct drive motor is used to drive the substrate layer receiving roll to rotate around its center line axis; the silicone oil paper layer receiving device includes a silicone oil paper layer receiving roll and a third direct drive motor; the third direct drive motor is used to drive the silicone oil paper layer receiving roll to rotate around its center line axis.

3. The double-sided tape attaching mechanism according to claim 1, characterized in that: It also includes a sticky strip position detection device; the sticky strip position detection device is supported by the right support column and is arranged on one side of the sticky strip pressing device; the sticky strip position detection device includes a first support frame and a high-speed CCD camera; the first support frame is detachably fixed to the right support column by means of screws; and the high-speed CCD camera is detachably fixed to the first support frame and can be dragged along the front and rear directions.

4. The double-sided tape attaching mechanism according to claim 3, characterized in that: The adhesive strip position detection device further comprises a light-enhancing source; the light-enhancing source is also detachably fixed on the first support frame, and its light projection direction corresponds to the adhesive strip pressing device.

5. The double-sided tape attaching mechanism according to claim 1, characterized in that: It also includes a material roll monitoring device; the material roll monitoring device is arranged on one side of the tape unloading device, and includes a distance setting photoelectric sensor and a second support frame; the second support frame is supported by the left support column to install and fix the distance setting photoelectric sensor.

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