Electronic price tag assembly line

Abstract

The application discloses an electronic price tag assembly line, a screen is carried on the top surface of a rubber loading platform, and a rubber is pasted on the back of the screen body by a rubber pasting mechanism; the screen body is carried on the top surface of a folding loading platform, a folding jig is arranged around a transversely extending rotating shaft and is eccentric to the rotating shaft and provided with a turnover head, the folding jig is turned over, the turnover head can be turned to the side edge of the folding loading platform to support a flexible circuit board extending from the folding loading platform, and the turnover head can also be turned to the top surface of the folding loading platform to fold and paste the flexible circuit board supported by the turnover head on the back of the screen body; a front shell mounting assembly puts the screen with the flexible circuit board folded by the folding assembly into the front shell; a middle frame mounting assembly puts a middle frame on the front shell with the screen, the middle frame is provided with a battery compartment on the side away from the front shell; a battery mounting assembly puts a battery into the battery compartment; and a rear cover mounting assembly puts a rear cover on the battery compartment. The application improves the automation degree of electronic price tag assembly.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to an electronic price tag assembly line. Background Technology

[0002] Electronic shelf labels (ESCs) are electronic tags used in supermarkets, convenience stores, pharmacies, and other similar establishments to display price information, replacing traditional paper price tags. Each ESC is connected to the store's computer database via wired or wireless network, displaying the latest product information on a screen on the label. ESCs effectively integrate the shelves into a computer program, eliminating the need for manual price tag changes and ensuring price consistency between the checkout counter and the shelves.

[0003] Most electronic shelf labels currently available typically consist of a front cover, display screen assembly, battery, mid-frame, and back cover. These parts are assembled manually, which is labor-intensive and requires further automation. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic shelf label assembly line, and the technical problem to be solved is to improve the automation level of electronic shelf label assembly.

[0005] To achieve the above objectives, the solution of the present invention is: an electronic price tag assembly line, comprising an adhesive application assembly, a folding assembly, a front shell mounting assembly, a middle frame mounting assembly, a battery mounting assembly, and a back cover mounting assembly arranged sequentially;

[0006] The adhesive application assembly includes an adhesive application platform and an adhesive application mechanism. The top surface of the adhesive application platform is used to support the screen. The screen includes a screen body and a flexible circuit board. On the adhesive application platform, the back of the screen body faces upward, and the flexible circuit board is connected to one side of the screen body. The adhesive application mechanism is located above the adhesive application platform and is used to apply double-sided adhesive to the back of the screen body.

[0007] The folding assembly includes a folding platform and a folding fixture. The top surface of the folding platform is used to support the screen body and allow the flexible circuit board to extend out of one side of the folding platform. The folding fixture is rotated around a laterally extending pivot and has a folding head eccentrically positioned on the pivot. When the folding fixture is rotated, the folding head can be flipped to the side of the folding platform to support the flexible circuit board extending out of the folding platform. It can also be flipped to the top surface of the folding platform to fold and attach the flexible circuit board supported by the folding head to the back of the screen body.

[0008] The front housing mounting assembly is used to place the screen, whose flexible circuit board has been folded by the folding assembly, into the front housing;

[0009] The mid-frame mounting assembly is used to place the mid-frame on the front housing containing the screen, and the mid-frame has a battery compartment on the side opposite to the front housing.

[0010] The battery mounting assembly is used to place the battery inside the battery compartment;

[0011] The back cover mounting assembly is used to place the back cover on the battery compartment.

[0012] Furthermore, the adhesive application mechanism includes an adhesive application mechanism support and an adhesive application lateral movement drive mechanism;

[0013] The adhesive applicator support is equipped with an adhesive applicator feed roll, an adhesive applicator take-up roll, and an adhesive applicator roller. The adhesive applicator feed roll has a strip wound on it, with multiple segments of double-sided adhesive applied to one side of the strip. The multiple segments of double-sided adhesive are arranged in an array along the extension direction of the strip. The adhesive applicator feed roll is used to release the strip by rotation, and the adhesive applicator take-up roll is used to wind the strip released by the adhesive applicator feed roll by rotation. The adhesive applicator roller is located below the adhesive applicator feed roll and the adhesive applicator take-up roll. The strip between the adhesive applicator feed roll and the adhesive applicator take-up roll passes under the adhesive applicator roller, and the side of the strip with double-sided adhesive applied to it faces downwards.

[0014] The adhesive application horizontal movement drive mechanism is used to drive the adhesive application mechanism support to move, so that the adhesive application roller can press against the screen body on the top surface of the adhesive application platform to stick the double-sided adhesive to the back of the screen body.

[0015] Furthermore, the adhesive application platform is mounted on an adhesive application XXY alignment platform, which is used to drive the adhesive application platform to move horizontally and rotate. An adhesive application camera is also provided above the adhesive application platform, which is communicatively connected to the adhesive application XXY alignment platform. The camera is used to drive the adhesive application platform to move and align according to the screen position information it collects.

[0016] Furthermore, it also includes a first transfer robot arm, which is capable of picking up, placing, and transferring the screen to pick up and place the screen on the adhesive mounting platform onto the folding platform.

[0017] Furthermore, the folding platform is mounted on a folding XXY alignment platform, which is used to drive the folding platform to move horizontally and rotate, so as to adjust the relative position between the folding platform and the folding fixture.

[0018] Furthermore, an electrical testing component is also provided between the folding assembly and the front shell mounting assembly, the electrical testing component including an electrical testing rotating platform and an electrical testing pressure head;

[0019] Multiple electrical testing platforms are arranged on opposite sides of the electrical testing rotating platform. The top surface of each electrical testing platform can accommodate a screen. The number of electrical testing heads is the same as the number of electrical testing platforms on one side. Each electrical testing head is located on one side of the electrical testing rotating platform. When the electrical testing rotating platform rotates, the electrical testing platforms on both sides can rotate to the position below each electrical testing head. Each electrical testing head is used to descend and contact the flexible circuit board on the screen on the electrical testing platform to conduct power-on testing on the screen.

[0020] Furthermore, the front shell mounting assembly includes a front shell assembly turntable and a front shell assembly robot, the mid-frame mounting assembly includes a mid-frame assembly turntable and a mid-frame assembly robot, the battery mounting assembly includes a battery assembly turntable and a battery assembly robot, and the rear cover mounting assembly includes a rear cover assembly turntable and a rear cover assembly robot.

[0021] The front shell assembly turntable, the middle frame assembly turntable, the battery assembly turntable and the rear cover assembly turntable are arranged sequentially along an assembly path, each rotating horizontally around its own center, and each having a positioning groove arrayed around its own axis on its top surface.

[0022] The front shell assembly robot, the middle frame assembly robot, the battery assembly robot, and the rear cover assembly robot are set on one side of the assembly path. The front shell assembly robot is located next to the front shell assembly turntable and is used to place a front shell at the positioning slot when it rotates through a positioning slot on the front shell assembly turntable. The middle frame assembly robot is located next to the middle frame assembly turntable and is used to place a middle frame at the positioning slot when it rotates through a positioning slot on the middle frame assembly turntable. The battery assembly robot is located next to the battery assembly turntable and is used to place a battery at the positioning slot when it rotates through a positioning slot on the battery assembly turntable. The rear cover assembly robot is located next to the rear cover assembly turntable and is used to place a rear cover at the positioning slot when it rotates through a positioning slot on the rear cover assembly turntable.

[0023] A screen assembly robot is also provided on the side of the front shell assembly turntable. Along the rotation direction of the front shell assembly turntable, the screen assembly robot is located downstream of the front shell assembly robot and is used to place a screen on the front shell when a front shell passes by on the front shell assembly turntable.

[0024] A first transport robot is installed between the front shell assembly turntable and the mid-frame assembly turntable; a second transport robot is installed between the mid-frame assembly turntable and the battery assembly turntable; and a third transport robot is installed between the battery assembly turntable and the rear cover assembly turntable. The first, second, and third transport robots are located on the other side of the assembly path. The first transport robot is used to pick up the front shell with the screen mounted on the front shell assembly turntable and place it into the positioning slot of the mid-frame assembly turntable. The second transport robot is used to pick up the front shell with the mid-frame mounted on the mid-frame assembly turntable and place it into the positioning slot of the battery assembly turntable. The third transport robot is used to pick up the front shell and mid-frame with the battery mounted and place them into the positioning slot of the rear cover assembly turntable.

[0025] Furthermore, an ultrasonic welding assembly is provided downstream of the rear cover mounting assembly. The ultrasonic welding assembly is used to ultrasonically weld and fix the front shell, middle frame and rear cover.

[0026] Furthermore, a laser engraving assembly is provided downstream of the rear cover mounting assembly, which is used to perform laser engraving on the front shell and / or the rear cover.

[0027] The beneficial effects of the present invention after adopting the above solution are as follows: Double-sided tape is automatically applied to the back of the screen body by the adhesive application component, and the flexible circuit board is automatically folded and pressed onto the back of the screen body by the folding component. The flexible circuit board is then glued to the back of the screen body by the double-sided tape. The screen is then placed into the front shell by the front shell mounting component, the middle frame is placed on the front shell by the middle frame mounting component, the battery is placed into the battery compartment of the middle frame by the electromagnetic mounting component, and finally the back cover is placed on the battery compartment by the back cover mounting component. Thus, the entire assembly process of the electronic price tag is completed with a high degree of automation. Attached Figure Description

[0028] Figure 1 Top view of the adhesive-coated assembly and the folding assembly;

[0029] Figure 2 This is a 3D view of the adhesive-coated assembly;

[0030] Figure 3 A 3D view of the first transfer robot arm;

[0031] Figure 4 A 3D view of the folding component;

[0032] Figure 5 This is a 3D view of the electrical measurement components;

[0033] Figure 6 Top view of the front shell mounting assembly and the mid-frame mounting assembly;

[0034] Figure 7 A three-dimensional view of the first and second handling robots;

[0035] Figure 8 A 3D view of the robotic arm assembling the front shell;

[0036] Figure 9 A 3D view of the front shell assembly turntable;

[0037] Figure 10 A perspective view of the front shell feeding device;

[0038] Figure 11 A perspective view of the battery mounting assembly and the back cover mounting assembly;

[0039] Figure 12 A three-dimensional view of the second and third handling robots;

[0040] Figure 13 A 3D view of the ultrasonic welding assembly and the laser engraving assembly;

[0041] Figure 14 This is a 3D structural diagram of the laser-engraved component.

[0042] Labeling Explanation: 1-Adhesive Application Assembly, 2-Folding Assembly, 3-Front Shell Mounting Assembly, 4-Middle Frame Mounting Assembly, 5-Battery Mounting Assembly, 6-Rear Cover Mounting Assembly, 7-Adhesive Application Platform, 8-Adhesive Application Mechanism, 9-Screen, 10-Screen Body, 11-Flexible Circuit Board, 12-Folding Platform, 13-Folding Fixture, 14-Flipping Head, 21-Adhesive Application Mechanism Support, 22-Adhesive Application Lateral Drive Mechanism, 23-Adhesive Application Unloading Roll, 24-Adhesive Application Receiving Roll, 25-Adhesive Application Roller, 26-Adhesive Application XXY Alignment Platform, 27-Adhesive Application Camera, 28-First Transfer Robot, 30- Folding XXY alignment platform, 31-Electrical testing component, 32-Electrical testing rotating platform, 33-Electrical testing pressure head, 34-Electrical testing platform, 35-Front shell assembly turntable, 36-Front shell assembly robot, 37-Middle frame assembly turntable, 38-Middle frame assembly robot, 39-Battery assembly turntable, 40-Battery assembly robot, 41-Rear cover assembly turntable, 42-Rear cover assembly robot, 43-Positioning slot, 44-Screen assembly robot, 45-First handling robot, 46-Second handling robot, 47-Third handling robot, 48-Ultrasonic welding component, 49-Laser engraving component. Detailed Implementation

[0043] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this invention is merely for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0045] This invention provides an electronic price tag assembly line, such as... Figure 1-14 As shown, the assembly includes, in sequence, an adhesive application component 1, a folding component 2, a front shell mounting component 3, a middle frame mounting component 4, a battery mounting component 5, and a back cover mounting component 6, which are used to assemble electronic price tags. The electronic price tags are existing conventional designs, including a front shell, a middle frame, a back cover, and a battery. The front shell has an opening in the middle and is used to insert a screen 9. After insertion, the screen 9 is exposed from the opening of the front shell. The middle frame and the back cover are assembled onto the front shell, and the battery is assembled inside to supply power to the screen 9.

[0046] The adhesive application assembly 1 includes an adhesive application platform 7 and an adhesive application mechanism 8. The top surface of the adhesive application platform 7 supports the screen 9. The screen 9 includes a screen body 10 and a flexible circuit board 11 (a conventional design). On the adhesive application platform 7, the back of the screen body 10 faces upward, and the flexible circuit board 11 is connected to one side of the screen body 10. The adhesive application mechanism 8 is positioned above the adhesive application platform 7 and is used to apply double-sided adhesive to the back of the screen body 10. It can adopt any existing automated structure for automatically applying double-sided adhesive and is not specifically limited. Preferably, in this embodiment, the adhesive application mechanism 8 includes... The adhesive applicator support 21 and the adhesive applicator lateral movement drive mechanism 22 are mounted on the adhesive applicator support 21. An adhesive applicator feed roll 23, an adhesive applicator take-up roll 24, and an adhesive applicator roller 25 are mounted on the feed roll 23. A strip of material is wound on the feed roll 23, with multiple segments of double-sided adhesive applied to one side of the strip. These segments are arranged in an array along the extension direction of the strip. The feed roll 23 is used to release the strip by rotation, and the take-up roll 24 is used to wind up the strip released by the feed roll 23 by rotation. The adhesive applicator roller 25 is located below the feed roll 23 and the take-up roll 24, between them. The tape wraps around the underside of the adhesive roller 25, with the side of the tape below the adhesive roller 25 having the double-sided adhesive applied facing downwards. The adhesive application lateral movement drive mechanism 22 is used to drive the adhesive application mechanism bracket 21 to move, thereby enabling the adhesive roller 25 to press against the screen body 10 on the top surface of the adhesive application platform 7, so as to apply the double-sided adhesive to the back of the screen body 10. In order to make the double-sided adhesive application position more accurate, in this embodiment, the adhesive application platform 7 is mounted on an adhesive application XXY alignment platform 26, which is used to drive the adhesive application platform 7 to move horizontally and backwards. The adhesive application platform 7 is also equipped with an adhesive application camera 27 above it. The adhesive application camera 27 is communicatively connected to the adhesive application XXY alignment platform 26. Based on the position information of the screen 9 collected by the camera 27, the adhesive application XXY alignment platform 26 drives the adhesive application platform 7 to move and align, thereby enabling the double-sided adhesive to be accurately pasted to the predetermined position. Of course, there must also be a corresponding programmable controller between the XXY alignment platform 26 and the adhesive application camera 27 (programmable controllers are a conventional technology in this field and will not be described in detail in this embodiment).

[0047] The folding assembly 2 includes a folding platform 12 and a folding fixture 13. A first transfer robot 28 is also provided between the adhesive application platform 7 and the folding platform 12. The first transfer robot 28 can pick up, place, and transfer the screen 9, so as to pick up and place the screen 9 with double-sided adhesive applied on the adhesive application platform 7 onto the folding platform 12. The top surface of the folding platform 12 of the folding assembly 2 is used to support the screen body 10 and to allow the flexible circuit board 11 to extend out of one side of the folding platform 12. The folding fixture 13 is electrically rotated around a laterally extending pivot, and a rotating head 14 is eccentrically provided on the pivot. When the folding fixture 13 is rotated, the rotating head 14 can be rotated to the side of the folding platform 12 to support the flexible circuit board 11 extending out of the folding platform 12. The flipping mechanism also allows the flipping head 14 to flip onto the top surface of the flipping platform 12, folding the flexible circuit board 11 supported by the flipping head 14 and attaching it to the back of the screen body 10. Preferably, the flipping head 14 is capable of vacuum adsorbing the flexible circuit board 11. The flipping platform 12 is mounted on a flipping XXY alignment platform 30, which is used to drive the flipping platform 12 to move horizontally back and forth and rotate horizontally to adjust the relative position between the flipping platform 12 and the flipping fixture 13. Thus, through the action of the flipping XXY alignment platform 30, during the flipping process, the rotation axis of the flipping fixture 13 is made collinear with the edge of the flexible circuit board 11 connected to the screen body 10, making the attachment of the flexible circuit board 11 smoother.

[0048] The front shell mounting assembly 3 is used to place the screen 9, after the flexible circuit board 11 has been folded by the folding assembly 2, into the front shell; the middle frame mounting assembly 4 is used to place the middle frame on the front shell containing the screen 9, and the middle frame has a battery compartment on the side facing away from the front shell; the battery mounting assembly 5 is used to place the battery in the battery compartment; the rear cover mounting assembly 6 is used to place the rear cover on the battery compartment. The above functions can be achieved by any existing conveyor line and multiple robotic arms. However, in this embodiment, in order to ensure assembly efficiency and save equipment space, the following preferred embodiment is provided: the front shell mounting assembly 3 includes a front shell assembly turntable 35 and a front shell assembly robotic arm 36, and the middle frame mounting assembly... The front cover assembly turntable 35 includes a mid-frame assembly turntable 37 and a mid-frame assembly robot 38; the battery mounting assembly 5 includes a battery assembly turntable 39 and a battery assembly robot 40; and the rear cover mounting assembly 6 includes a rear cover assembly turntable 41 and a rear cover assembly robot 42. The front cover assembly turntable 35, mid-frame assembly turntable 37, battery assembly turntable 39, and rear cover assembly turntable 41 are sequentially arranged along an assembly path. Specifically, in this embodiment, the front cover assembly turntable 35, mid-frame assembly turntable 37, battery assembly turntable 39, and rear cover assembly turntable 41, arranged along a straight line, are horizontally rotated around their respective centers, and positioning grooves 43 are arranged in an array around their respective rotation axes on their top surfaces. The number is not limited. Specifically, in this embodiment, the front shell assembly turntable 35, the middle frame assembly turntable 37, the battery assembly turntable 39, and the rear cover assembly turntable 41 are each provided with four positioning slots 43. The front shell assembly robot 36, the middle frame assembly robot 38, the battery assembly robot 40, and the rear cover assembly robot 42 are arranged on one side of the assembly path. The front shell assembly robot 36 is located next to the front shell assembly turntable 35 and is used to place a front shell at the positioning slot 43 when it rotates through one positioning slot 43 on the front shell assembly turntable 35. The middle frame assembly robot 38 is located next to the middle frame assembly turntable 37 and is used to place a front shell at the positioning slot 43 when it rotates through one positioning slot 43 on the middle frame assembly turntable 37. A middle frame is placed at three locations. The battery assembly robot 40 is located next to the battery assembly turntable 39 and is used to place a battery in the positioning slot 43 when the battery assembly turntable 39 rotates. The rear cover assembly robot 42 is located next to the rear cover assembly turntable 41 and is used to place a rear cover in the positioning slot 43 when the rear cover assembly turntable 41 rotates. A screen assembly robot 44 is also provided next to the front shell assembly turntable 35. Along the rotation direction of the front shell assembly turntable 35, the screen assembly robot 44 is located downstream of the front shell assembly robot 36 and is used to place a screen 9 on the front shell when a front shell passes by on the front shell assembly turntable 35.A first handling robot 45 is positioned between the front shell assembly turntable 35 and the mid-frame assembly turntable 37; a second handling robot 46 is positioned between the mid-frame assembly turntable 37 and the battery assembly turntable 39; and a third handling robot 47 is positioned between the battery assembly turntable 39 and the rear cover assembly turntable 41. The first, second, and third handling robots 45, 46, and 47 are located on the other side of the assembly path. The first handling robot 45 is used to grip the front shell with the screen mounted on the front shell assembly turntable 35 and place it into the positioning slot 43 of the mid-frame assembly turntable 37. The second handling robot 46 is used to grip the front shell with the mid-frame mounted on the mid-frame assembly turntable 37 and place it into the positioning slot 43 of the battery assembly turntable 39. The third handling robot 47 is used to grip the front shell and mid-frame after battery assembly and place them into the positioning slot 43 of the rear cover assembly turntable 41.

[0049] Downstream of the rear cover mounting assembly 6, there is also an ultrasonic welding assembly 48, which is used to ultrasonically weld and fix the front shell, middle frame and rear cover.

[0050] A laser engraving component 49 is also provided downstream of the rear cover mounting component 6. The laser engraving component 49 is used to perform laser engraving on the front shell and / or the rear cover.

[0051] Preferably, in this embodiment, an electrical testing component 31 is further provided between the folding component 2 and the front shell mounting component 3. The electrical testing component 31 includes an electrical testing rotating platform 32 and electrical testing heads 33. Multiple electrical testing platforms 34 are arranged on opposite sides of the electrical testing rotating platform 32. The top surface of each electrical testing platform 34 can accommodate a screen 9. The number of electrical testing heads 33 is the same as the number of electrical testing platforms 34 on one side. Each electrical testing head 33 is located on one side of the electrical testing rotating platform 32. When the electrical testing rotating platform 32 rotates, the electrical testing platforms 34 on both sides can rotate to the position below each electrical testing head 33. Each electrical testing head 33 is used to descend and contact the flexible circuit board 11 of the screen 9 on the electrical testing platform 34 to perform an electrical test on the screen 9.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the design of this case. All equivalent changes made based on the key design features of this case shall fall within the protection scope of this case.

Claims

1. An electronic price tag assembly line, characterized in that: It includes, in sequence, an adhesive bonding assembly (1), a folding assembly (2), a front shell mounting assembly (3), a middle frame mounting assembly (4), a battery mounting assembly (5), and a rear cover mounting assembly (6); The adhesive application assembly (1) includes an adhesive application platform (7) and an adhesive application mechanism (8). The top surface of the adhesive application platform (7) is used to support the screen (9). The screen (9) includes a screen body (10) and a flexible circuit board (11). On the adhesive application platform (7), the back of the screen body (10) faces upward, and the flexible circuit board (11) is connected to one side of the screen body (10). The adhesive application mechanism (8) is located above the adhesive application platform (7) and is used to apply double-sided adhesive to the back of the screen body (10). The folding assembly (2) includes a folding platform (12) and a folding fixture (13). The top surface of the folding platform (12) is used to support the screen body (10) and allow the flexible circuit board (11) to extend out of one side of the folding platform (12). The folding fixture (13) is rotated around a horizontally extending pivot and has a folding head (14) eccentrically positioned on the pivot. When the folding fixture (13) is rotated, the folding head (14) can be flipped to the side of the folding platform (12) to support the flexible circuit board (11) extending out of the folding platform (12). The folding head (14) can also be flipped to the top surface of the folding platform (12) to fold and attach the flexible circuit board (11) supported by the folding head (14) to the back of the screen body (10). The front housing mounting assembly (3) is used to place the screen (9) which has been folded by the folding assembly (2) to the front housing; The mid-frame mounting assembly (4) is used to place the mid-frame on the front shell in which the screen (9) is placed, and the mid-frame has a battery compartment on the side away from the front shell; The battery mounting assembly (5) is used to place the battery in the battery compartment; The rear cover mounting assembly (6) is used to place the rear cover on the battery compartment; Downstream of the rear cover mounting assembly (6), there is also an ultrasonic welding assembly (48), which is used to ultrasonically weld and fix the front shell, middle frame and rear cover. The flipping head (14) is capable of vacuum adsorbing the flexible circuit board (11). The flipping stage (12) is mounted on a flipping XXY alignment platform (30). The flipping XXY alignment platform (30) is used to drive the flipping stage (12) to move horizontally in the front, back, left, and right directions and to rotate horizontally, so as to adjust the relative position between the flipping stage (12) and the flipping fixture (13). Then, through the action of the flipping XXY alignment platform (30), when flipping, the rotation axis of the flipping fixture (13) is collinear with the edge position of the flexible circuit board (11) connected to the screen body (10).

2. The electronic price tag assembly line as described in claim 1, characterized in that: The adhesive application mechanism (8) includes an adhesive application mechanism support (21) and an adhesive application transverse drive mechanism (22). The adhesive applicator support (21) is equipped with an adhesive applicator feed roll (23), an adhesive applicator take-up roll (24), and an adhesive applicator roller (25). The adhesive applicator feed roll (23) has a strip wound on it. One side of the strip is covered with multiple segments of double-sided adhesive. The multiple segments of double-sided adhesive are arranged in an array along the extension direction of the strip. The adhesive applicator feed roll (23) is used to release the strip by rotation. The adhesive applicator take-up roll (24) is used to wind the strip released by the adhesive applicator feed roll (23) by rotation. The adhesive applicator roller (25) is located below the adhesive applicator feed roll (23) and the adhesive applicator take-up roll (24). The strip between the adhesive applicator feed roll (23) and the adhesive applicator take-up roll (24) passes under the adhesive applicator roller (25), and the side of the strip below the adhesive applicator roller (25) with double-sided adhesive is facing down. The adhesive application horizontal movement drive mechanism (22) is used to drive the adhesive application mechanism support (21) to move, so that the adhesive application roller (25) can be pressed onto the screen body (10) on the top surface of the adhesive application platform (7) to stick the double-sided adhesive to the back of the screen body (10).

3. The electronic price tag assembly line as described in claim 1, characterized in that: The adhesive application platform (7) is mounted on an adhesive application XXY alignment platform (26). The adhesive application XXY alignment platform (26) is used to drive the adhesive application platform (7) to move horizontally and rotate. An adhesive application camera (27) is also provided above the adhesive application platform (7). The adhesive application camera (27) is connected to the adhesive application XXY alignment platform (26) for use in accordance with the position information of the screen (9) collected by the camera to drive the adhesive application platform (7) to move and align.

4. The electronic price tag assembly line as described in claim 1, characterized in that: It also includes a first transfer robot (28) which is capable of picking up, placing and transferring the screen (9) to pick up and place the screen (9) on the adhesive mounting platform (7) onto the folding platform (12).

5. The electronic price tag assembly line as described in claim 1, characterized in that: An electrical testing component (31) is also provided between the folding component (2) and the front shell mounting component (3). The electrical testing component (31) includes an electrical testing rotating platform (32) and an electrical testing pressure head (33). The electrical testing rotating platform (32) has multiple electrical testing platforms (34) arranged on both sides. The top surface of each electrical testing platform (34) can accommodate a screen (9). The number of electrical testing heads (33) is the same as the number of electrical testing platforms (34) on one side. Each electrical testing head (33) is located on one side of the electrical testing rotating platform (32). When the electrical testing rotating platform (32) rotates, the electrical testing platforms (34) on both sides can rotate to the bottom of each electrical testing head (33). Each electrical testing head (33) is used to descend and contact the flexible circuit board (11) of the screen (9) on the electrical testing platform (34) to perform a power-on test on the screen (9).

6. The electronic price tag assembly line as described in claim 1, characterized in that: The front shell mounting assembly (3) includes a front shell assembly turntable (35) and a front shell assembly robot (36), the middle frame mounting assembly (4) includes a middle frame assembly turntable (37) and a middle frame assembly robot (38), the battery mounting assembly (5) includes a battery assembly turntable (39) and a battery assembly robot (40), and the rear cover mounting assembly (6) includes a rear cover assembly turntable (41) and a rear cover assembly robot (42). The front shell assembly turntable (35), the middle frame assembly turntable (37), the battery assembly turntable (39) and the rear cover assembly turntable (41) are arranged sequentially along an assembly path, and are arranged horizontally around their respective centers, and are provided with positioning grooves (43) on their top surfaces around their respective rotating shafts. The front shell assembly robot (36), the mid-frame assembly robot (38), the battery assembly robot (40), and the rear cover assembly robot (42) are arranged on one side of the assembly path. The front shell assembly robot (36) is located next to the front shell assembly turntable (35) and is used to place a front shell at the positioning slot (43) when it rotates through a positioning slot (43) on the front shell assembly turntable (35). The mid-frame assembly robot (38) is located next to the mid-frame assembly turntable (37) and is used to place a front shell on the mid-frame assembly turntable (37). When a positioning slot (43) rotates, a middle frame is placed at the positioning slot (43). The battery assembly robot (40) is located next to the battery assembly turntable (39) and is used to place a battery at the positioning slot (43) when a positioning slot (43) on the battery assembly turntable (39) rotates. The back cover assembly robot (42) is located next to the back cover assembly turntable (41) and is used to place a back cover at the positioning slot (43) when a positioning slot (43) on the back cover assembly turntable (41) rotates. A screen assembly robot (44) is also provided on the side of the front shell assembly turntable (35). Along the rotation direction of the front shell assembly turntable (35), the screen assembly robot (44) is located downstream of the front shell assembly robot (36) and is used to place a screen (9) on the front shell when a front shell passes by on the front shell assembly turntable (35). A first handling robot (45) is provided between the front shell assembly turntable (35) and the middle frame assembly turntable (37), a second handling robot (46) is provided between the middle frame assembly turntable (37) and the battery assembly turntable (39), and a third handling robot (47) is provided between the battery assembly turntable (39) and the rear cover assembly turntable (41). The first handling robot (45), the second handling robot (46) and the third handling robot (47) are located on the other side of the assembly path. The first handling robot (45) is used to grab the front shell with the screen on the front shell assembly turntable (35) and put it into the positioning slot (43) of the middle frame assembly turntable (37). The second handling robot (46) is used to grab the front shell with the middle frame on the middle frame assembly turntable (37) and put it into the positioning slot (43) of the battery assembly turntable (39). The third handling robot (47) is used to grab the front shell and middle frame with the battery installed and put them into the positioning slot (43) of the rear cover assembly turntable (41).

7. The electronic price tag assembly line as described in claim 1, characterized in that: A laser engraving assembly (49) is also provided downstream of the rear cover mounting assembly (6), which is used to perform laser engraving on the front cover and / or the rear cover.

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