Edge covering machine for circuit board

Abstract

The invention discloses an edge covering machine for a circuit board. The edge covering machine comprises a conveying mechanism, an edge covering mechanism and a reversing mechanism. The conveying mechanism is used for conveying the circuit board. The number of the edge covering mechanisms is two, the two edge covering mechanisms are distributed in the conveying direction of the conveying mechanism, and the edge covering mechanisms are used for conducting edge covering operation on the edges of the two sides of the circuit board on the conveying mechanism; the reversing mechanism is located between the two sets of edge covering mechanisms and used for conducting 90-degree rotation operation on the circuit board of the conveying mechanism in the horizontal direction. The covering machine has the effect of improving the covering efficiency of the covering machine.

Description

Technical Field

[0001] This application relates to the field of circuit board processing, and in particular to an edge-wrapping machine for circuit boards. Background Technology

[0002] To protect the edges of the pre-processed circuit board, tape needs to be applied to the four edges of the large circuit board before processing. The edge wrapping method is mostly done manually. Existing edge wrapping machines stabilize a single circuit board on a clamping mechanism, with edge wrapping mechanisms arranged around the clamping mechanism. Then, negative pressure is used to stabilize the tape on the edge wrapping mechanism. Next, the edge wrapping mechanism moves towards the circuit board, so that the tape covers the edge of the circuit board. Whether it is manual edge wrapping or edge wrapping the circuit board piece by piece by the edge wrapping machine, there is a problem of low edge wrapping efficiency, so there is still room for improvement. Summary of the Invention

[0003] In order to improve the edge-wrapping efficiency of the edge-wrapping machine, this application provides an edge-wrapping machine for circuit boards.

[0004] The edge-wrapping machine for circuit boards provided in this application adopts the following technical solution: An edge-wrapping machine for circuit boards, comprising: A conveying mechanism for transporting circuit boards; The edge-binding mechanism consists of two sets, which are distributed along the conveying direction of the conveying mechanism. The edge-binding mechanism is used to bind the edges of the circuit board on both sides of the conveying mechanism. A reversing mechanism is located between two sets of edge-sealing mechanisms. The reversing mechanism is used to rotate the circuit board of the conveying mechanism 90° in the horizontal direction.

[0005] By adopting the above technical solution, a set of edge-wrapping structures is first used to perform edge-wrapping operations on the circuit board on the conveying mechanism to complete the edge-wrapping step of one of the opposite sides of the circuit board. Then, under the conveying action of the conveying mechanism, the circuit board continues to move forward. When passing through the reversing mechanism between the two sets of edge-wrapping mechanisms, the reversing mechanism reverses the circuit board by 90°. At this time, the two opposite sides of the circuit board that have completed the edge-wrapping step are switched to the front and back of the circuit board. Then, when passing through the second set of edge-wrapping mechanisms, the second set of edge-wrapping mechanisms wraps the opposite sides of the circuit board that have not yet completed the edge-wrapping step, thereby completing the purpose of all four sides of the circuit board. This replaces the manual edge-wrapping method. Furthermore, the continuous conveying by the conveying mechanism eliminates the need to repeatedly pick up and put down the circuit board, which helps to improve the edge-wrapping efficiency of the edge-wrapping machine.

[0006] Preferably, the conveying mechanism includes a horizontally arranged frame, a plurality of horizontally rotatably connected to the inner side of the frame, and a first driving member that drives the transmission rollers to rotate synchronously. The plurality of transmission rollers are parallel to each other and spaced apart along the length of the frame.

[0007] By adopting the above technical solution, the circuit board is placed flat on several transmission rollers. Under the drive of the first driving component, the transmission rollers rotate synchronously, and the circuit board is driven to move along the length of the frame through friction transmission, which is conducive to realizing the stable conveying function of the conveying mechanism for the circuit board.

[0008] Preferably, a first top support is provided inside the frame. When the circuit board moves to the edge-sealing mechanism, the top of the first top support extends upward beyond the gap between the adjacent transmission rollers and pushes the circuit board away from the surface of the transmission rollers.

[0009] By adopting the above technical solution, the gap between adjacent roller groups allows the first top support to be pushed upward. When the circuit board moves to the edge-wrapping mechanism, the top of the first top support pushes the circuit board away from the surface of the transmission roller, so that the circuit board and the transmission roller are separated vertically and vertically, achieving the purpose of no contact between the two, thereby realizing temporary braking of the circuit board and facilitating the edge-wrapping mechanism to perform accurate edge-wrapping operation on the edge of the circuit board.

[0010] Preferably, a set of edge-binding mechanisms consists of two, which are symmetrically distributed on both sides of the conveying mechanism. Each edge-binding mechanism includes a support base on one side of the frame, two synchronous rollers rotatably connected to the support base, and a synchronous belt sleeved between the two synchronous rollers. The two synchronous rollers are distributed along the length of the frame. The support base is vertically rotatably connected to a rotating cylinder for fixing the tape roll. The tape is wound around the outside of the timing belt, and the adhesive side of the tape is facing away from the timing belt. The support base is equipped with two cutting mechanisms. When the circuit board stops at the edge-wrapping mechanism, the two cutting mechanisms are placed at the front and rear of the circuit board respectively, and the cutting mechanisms cut the tape. The synchronous belt is provided with a plurality of first pushing members, which are spaced apart along the rotation direction of the synchronous belt. The end of the first pushing member is provided with a clamping piece, which is used to clamp the tape to the outside of the synchronous belt. The clamping piece is bonded to the edge of the adhesive surface of the tape. When the circuit board moves to the same height as the tape, the first pushing member pushes towards the circuit board until the adhesive surface of the tape is bonded to the side of the circuit board. The synchronous belt is provided with a plurality of second pushing members, which are spaced apart along the rotation direction of the synchronous belt. When the clamping piece drives the tape to move toward the circuit board and sticks the tape to the side of the circuit board, the second pushing members push the portion of the tape protruding from the upper and lower surfaces of the circuit board to drive the portion of the tape protruding from the upper and lower surfaces of the circuit board to bend toward the surface of the circuit board and stick it.

[0011] By adopting the above technical solution, the tape can be pulled during the rotation of the synchronous belt by the clamping cooperation of the clips and the synchronous belt. In conjunction with the rotation of the rotating drum, the tape can be continuously conveyed. Moreover, since multiple clips are distributed at intervals on the synchronous belt, the tape body can still maintain its stability on the synchronous belt after the cutting mechanism cuts the tape. In addition, since the clips are bonded to the adhesive surface of the tape, the tape can be stably moved towards the circuit board by the pushing of the first pushing member. On this basis, in conjunction with the second pushing member, the part of the tape protruding from the upper and lower surfaces of the circuit board is bent towards the surface of the circuit board and bonded, which is beneficial for the edge-wrapping mechanism to complete the edge-wrapping steps on both sides of the circuit board.

[0012] Preferably, the first and second pushing members are disposed inside the synchronous belt, and the outer periphery of the synchronous roller is provided with a plurality of annular clearance grooves, which are spaced apart along the axial direction of the synchronous roller. The first and second pushing members pass through the annular clearance grooves when they move with the synchronous belt.

[0013] By adopting the above technical solution, the first and second pushers are placed inside the synchronous belt to reduce the impact on the movement or lifting of the circuit board. An annular clearance groove is provided on the outer circumferential surface of the synchronous roller to improve the problem of movement interference between the synchronous roller and the first and second pushers.

[0014] Preferably, two first telescopic limiting members are vertically arranged inside the frame. The two first telescopic limiting members correspond one-to-one with two sets of edge-binding mechanisms. The first telescopic limiting members extend out of the gap between adjacent transmission rollers. When the circuit board moves with the conveying mechanism to abut against the outside of the first telescopic limiting member, the circuit board is located between the two edge-binding mechanisms. When the circuit board completes the edge-binding step, the first telescopic limiting members retract to below the transmission rollers.

[0015] By adopting the above technical solution, the first telescopic limiting member blocks the movement path of the circuit board, so that when the circuit board enters between the two edge-wrapping mechanisms, it can stop moving and maintain its position. This facilitates the accurate and stable pushing of the circuit board to the predetermined position with the first top support member, which helps to improve the accuracy of the circuit board edge-wrapping. When the circuit board completes the edge-wrapping step, the first telescopic limiting member retracts to below the transmission roller, thereby releasing the restriction on the circuit board and facilitating the continued movement of the circuit board.

[0016] Preferably, the reversing mechanism includes a second top support member vertically rotatably connected within the frame and a second driving member that drives the rotation of the second top support member. When the circuit board moves above the reversing mechanism, the second top support member pushes the circuit board upward until the circuit board separates from the transmission roller, and the second driving member drives the second top support member to rotate 90º.

[0017] By adopting the above technical solution, the second top support first pushes the circuit board away from the transmission roller to brake the circuit board, and then the second driving component drives the second top support to rotate, which facilitates the 90º reversal of the circuit board.

[0018] Preferably, a second telescopic limiting member is provided inside the frame, the second telescopic limiting member extends out of the gap between adjacent transmission rollers, and when the circuit board moves to abut against the outside of the second telescopic limiting member, the circuit board is located above the reversing mechanism; when the circuit board completes the 90° reversing step, the first telescopic limiting member retracts to below the transmission roller.

[0019] By adopting the above technical solution, the second telescopic limiting member blocks the movement path of the circuit board, so that the circuit board stops moving when it moves above the reversing mechanism. This facilitates the accurate and stable reversing of the circuit board by cooperating with the second top support member. When the circuit board completes the reversing step, the second telescopic limiting member retracts to below the transmission roller, thereby releasing the restriction on the circuit board and facilitating its continued movement.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. By first using a set of edge-wrapping structures to perform edge-wrapping operations on the circuit board on the conveying mechanism, the edge-wrapping step of one opposite edge of the circuit board is completed. Then, the circuit board continues to move forward under the conveying action of the conveying mechanism. When passing through the reversing mechanism between the two sets of edge-wrapping mechanisms, the reversing mechanism reverses the circuit board by 90°. Then, when passing through the second set of edge-wrapping mechanisms, the second set of edge-wrapping mechanisms wraps the opposite edge of the circuit board that has not yet completed the edge-wrapping step, thereby completing the purpose of all four sides of the circuit board. This replaces the manual edge-wrapping method. Furthermore, the continuous conveying by the conveying mechanism eliminates the need to repeatedly pick up and put down the circuit board, which helps to improve the edge-wrapping efficiency of the edge-wrapping machine. 2. By utilizing the clamping action of the clips and the timing belt, the belt can be pulled during the rotation of the timing belt, and in conjunction with the rotation of the rotating drum, it is beneficial to achieve the purpose of uninterrupted belt conveying; 3. By having multiple clips spaced apart on the outer side of the synchronous belt, the tape body can still maintain its stability on the synchronous belt after the cutting mechanism cuts the tape. In addition, since the clips are bonded to the adhesive surface of the tape, the tape can be moved stably towards the circuit board by the pushing of the first pushing member. On this basis, in conjunction with the second pushing member, the portion of the tape protruding from the upper and lower surfaces of the circuit board is bent and bonded towards the surface of the circuit board, which is beneficial for the edge-wrapping mechanism to complete the edge-wrapping steps on both sides of the circuit board. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an edge-wrapping machine for circuit boards according to an embodiment of this application.

[0022] Figure 2 yes Figure 1 Enlarged diagram of point A in the middle.

[0023] Figure 3 yes Figure 1 Enlarged diagram of point B in the middle.

[0024] Figure 4 This is a cross-sectional view of a timing belt used in a circuit board edge-wrapping machine according to an embodiment of this application.

[0025] Figure 5 yes Figure 1 Enlarged diagram of point C in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 11. Frame; 12. Drive roller; 13. Edge binding area; 14. Reversing area; 15. Second telescopic limiter; 16. First support; 17. First telescopic limiter; 2. Edge binding mechanism; 21. Support base; 211. Rotating cylinder; 212. Mounting frame; 22. Synchronous roller; 221. Annular clearance groove; 23. Synchronous belt; 3. Adhesive belt; 4. Circuit board; 5. Cutting mechanism; 51. Transverse cylinder; 52. Blade; 6. First pusher; 61. Clamping plate; 7. Second pusher; 71. Push plate; 8. Second support; 81. Support plate; 9. Reversing motor; 10. Gear set. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] This application discloses an edge-wrapping machine for circuit boards. It includes: Reference Figure 1 and Figure 2A conveying mechanism 1 is used to convey circuit boards 4. Specifically, the conveying mechanism 1 includes a horizontally longitudinally placed frame 11, several horizontally rotatably connected transmission rollers 12 to the inner side of the frame 11, and a first driving member for driving the transmission rollers 12 to rotate synchronously. The transmission rollers 12 are parallel to each other and spaced apart along the length of the frame 11. In this embodiment, the first driving member includes a conveying motor, a chain, and several sprockets. Each sprocket corresponds to one of the transmission rollers 12, and the sprockets are coaxially fixedly connected to their corresponding transmission rollers 12. The chain is sleeved between the sprockets and meshes with them for transmission. The conveying motor is installed on the outside of the frame 11, and the output shaft of the conveying motor is coaxially fixedly connected to one of the transmission rollers 12. Under the drive of the conveying motor and the meshing transmission of the chain and sprockets, the synchronous and unidirectional rotation of the transmission rollers 12 is achieved. By placing the circuit board 4 flat on the transmission rollers 12 and driving it to move along the length of the frame 11 by friction transmission, the conveying mechanism 1 can stably convey the circuit board 4. In this embodiment, the working areas are divided sequentially along the conveying direction of the conveying mechanism 1, namely the edge-covering area 13, the reversing area 14, and the edge-covering area 13.

[0029] Reference Figure 3 and Figure 4 There are two sets of edge-wrapping mechanisms 2, which are distributed along the conveying direction of the conveying mechanism 1. The two sets of edge-wrapping mechanisms 2 correspond one-to-one with the two reversing areas 14, and the edge-wrapping mechanism 2 is located at the corresponding edge-wrapping area 13. The edge-wrapping mechanism 2 is used to wrap the edges of the circuit board 4 on both sides of the conveying mechanism 1.

[0030] In this embodiment, there are two edge-binding mechanisms 2 in one set, symmetrically distributed on both sides of the conveying mechanism 1. Specifically, the edge-binding mechanism 2 includes a support base 21 fixed to one side of the frame 11, two vertically rotatably connected synchronous rollers 22 to the support base 21, a synchronous belt 23 sleeved between the two synchronous rollers 22, and a synchronous motor that drives the synchronous rollers 22 to rotate. The synchronous motor is fixed to the support base 21, and the output shaft of the synchronous motor is coaxially connected to the synchronous rollers 22. The two synchronous rollers 22 are distributed along the length of the frame 11.

[0031] The support base 21 is vertically rotatably connected to a rotating drum 211 for fixing the roll of tape 3. The tape 3 is wound around the outside of the synchronous belt 23, with the adhesive side of the tape 3 facing away from the synchronous belt 23. The tape 3 is wound less than one turn around the synchronous belt 23 to reduce the possibility of the tape 3 sticking together. By using the clamping action of the clamping piece 61 and the synchronous belt 23, the tape 3 can be pulled during the rotation of the synchronous belt 23. In conjunction with the rotation of the rotating drum 211, the uninterrupted conveying of the tape 3 is achieved.

[0032] The support base 21 is equipped with two cutting mechanisms 5, each including a transverse cylinder 51 and a blade 52. Specifically, a mounting bracket 212 is transversely mounted between the two symmetrically distributed support bases 21. The transverse cylinder 51 is transversely mounted and fixed on the upper surface of the mounting bracket 212. The blade 52 is mounted on the end of the transverse cylinder 51 facing the timing belt 23, and the distance between the two blades 52 on the same side is equal to the side length of the circuit board 4. When the circuit board 4 stops at the edge-wrapping mechanism 2, the two cutting mechanisms 5 are located at the front and rear of the circuit board 4, respectively. The transverse cylinder 51 of the cutting mechanism 5 extends towards the timing belt 23, and the two blades 52 cut the tape 3 on the timing belt 23.

[0033] A plurality of first pushing members 6 are fixed inside the synchronous belt 23, specifically electric push rods. The plurality of first pushing members 6 are spaced apart along the rotation direction of the synchronous belt 23, and are distributed vertically on two different horizontal planes. The ends of the plurality of first pushing members 6 pass through the synchronous belt 23 and are fixed with clamping pieces 61. By extending the first pushing members 6 toward the synchronous belt 23, the tape 3 is clamped to the clamping pieces 61 and the outside of the synchronous belt 23. The clamping pieces 61 are bonded to the upper and lower edges of the adhesive surface of the tape 3. When the circuit board 4 moves to align with the tape 3, the first pushing members 6 push toward the circuit board 4 until the middle of the adhesive surface of the tape 3 is bonded to the side of the circuit board 4.

[0034] The inner side of the synchronous belt 23 has several second pushing members 7, which are electric push rods. These second pushing members 7 are spaced apart along the rotation direction of the synchronous belt 23 and are distributed vertically on two different horizontal planes. The ends of several first pushing members 6 pass through the synchronous belt 23 and are fixed with push plates 71. When the clamping plate 61 moves the tape 3 towards the circuit board 4 and adheres the tape 3 to the side of the circuit board 4, the vertically distributed second pushing members 7 respectively drive the corresponding push plates 71. The push plates 71 push the portion of the tape 3 protruding from the upper and lower surfaces of the circuit board 4, causing this portion to bend towards the surface of the circuit board 4. The portion of the tape 3 protruding from the upper and lower surfaces of the circuit board 4 is then adhered to the upper and lower surfaces at the edge of the circuit board 4. This achieves the purpose of covering the edge of the circuit board 4 with the tape 3.

[0035] The synchronous roller 22 has several annular clearance grooves 221 on its outer periphery. The annular clearance grooves 221 are distributed at intervals along the axial direction of the synchronous roller 22. When the first pusher 6 and the second pusher 7 move with the synchronous belt 23, they pass through the annular clearance grooves 221.

[0036] Reference Figure 1 and Figure 2To improve the accuracy of edge banding of circuit board 4, two sets of first support members 16 are vertically installed and fixed inside the frame 11. The two sets of first support members 16 are located in two edge banding areas 13, with four first support members 16 in each set. Two first telescopic limiting members 17 are also vertically installed and fixed inside the frame 11; the two first telescopic limiting members 17 are located in the two edge banding areas 13, and each of the two first telescopic limiting members 17 corresponds one-to-one with one of the two sets of edge banding mechanisms 2. Both the first support members 16 and the first telescopic limiting members 17 are vertical cylinders. The first telescopic limiting member 17 extends upward into the gap between adjacent transmission rollers 12. When the circuit board 4 moves under the drive of the conveying mechanism 1 to abut against the outside of the first telescopic limiting member 17, the circuit board 4 is located between the two edge-wrapping mechanisms 2. The top of the first support member 16 extends upward into the gap between adjacent transmission rollers 12 and pushes the circuit board 4 away from the surface of the transmission roller 12 until it is at the same height as the tape 3 of the synchronous belt 23 and aligned with the tape 3, which is beneficial to the accuracy of subsequent edge wrapping.

[0037] When the circuit board 4 completes the edge-wrapping step, the first telescopic limiting member 17 and the first top support member 16 retract to below the transmission roller 12, thereby releasing the restriction on the circuit board 4 and allowing the circuit board 4 to continue moving under the drive of the transmission roller 12.

[0038] Reference Figure 1 and Figure 5 A reversing mechanism is located in the reversing area 14, positioned between the two sets of edge-sealing mechanisms 2. The reversing mechanism is used to rotate the circuit board 4 of the conveying mechanism 1 horizontally by 90°. Specifically, the reversing mechanism includes a second top support 8 vertically rotatably connected within the frame 11 and a second driving member that drives the rotation of the second top support 8. A support plate 81 is fixed to the top of the second top support 8. The second driving member includes a reversing motor 9 mounted on the bottom wall of the frame 11 and a gear set 10 for transmission. One gear of the gear set 10 is coaxially and fixedly connected to the second top support 8, and the other gear of the gear set 10 is also coaxially and fixedly connected to the second top support 8. A second telescopic limiting member 15 is vertically fixed within the frame 11. Both the second top support 8 and the second telescopic limiting member are vertical cylinders. The second telescopic limiting member 15 extends into the gap between adjacent transmission rollers 12. When the circuit board 4 moves to abut against the outside of the second telescopic limiting member 15, the circuit board 4 enters the reversing area 14 and is positioned above the support plate 81 of the reversing mechanism. The second top support member 8 pushes the circuit board 4 upward, lifting it away from the transmission roller 12 until the circuit board 4 is higher than the second telescopic limiting member 15. Then, driven by the reversing motor 9 and in conjunction with the gear set 10, the second top support member 8 and the circuit board 4 rotate synchronously by 90°, achieving the 90° reversal of the circuit board 4. Then, the second top support member 8 and the second telescopic limiting member 15 retract to below the transmission roller 12 to enter the next edge-wrapping area 13 for edge-wrapping, thereby completing the edge-wrapping work around the circuit board 4.

[0039] The implementation principle of an edge-wrapping machine for circuit boards according to an embodiment of this application is as follows: When performing the edge wrapping work of circuit board 4, the synchronous motor is started first. The clamping action of clamping plate 61 and synchronous belt 23, along with the rotation of synchronous belt 23, can pull the tape 3. Then, in conjunction with the rotation of rotating drum 211, the tape 3 is continuously conveyed. When the tape 3 is conveyed to the synchronous belt 23 towards the conveying path of circuit board 4, the synchronous motor stops rotating, and the two cutting structures cut the tape 3 of synchronous belt 23 to wait for circuit board 4 to be in place.

[0040] The conveyor mechanism 1 is activated, and circuit boards 4 are placed one by one on it. Driven by the transmission roller 12, the circuit boards 4 move forward to the first edge-wrapping area 13. When the circuit boards 4 move to the outside of the first telescopic limiting member 17 and stop moving, the top of the first supporting member 16 extends upward through the gap between the adjacent transmission rollers 12 and pushes the circuit boards 4 away from the surface of the transmission rollers 12 until it is at the same height as the tape 3 of the synchronous belt 23 and aligned with the tape 3. The first pushing member 6 pushes towards the circuit boards 4 until the middle of the adhesive surface of the tape 3 is bonded to the side of the circuit boards 4. Several second pushing members 7 drive the corresponding pushing pieces 71 to move towards the circuit boards 4. The pushing pieces 71 push the portion of the tape 3 protruding from the upper and lower surfaces of the circuit boards 4, so as to drive the portion of the tape 3 protruding from the upper and lower surfaces of the circuit boards 4 to bend towards the surface of the circuit boards 4. The portion of the tape 3 protruding from the upper and lower surfaces of the circuit boards 4 is respectively bonded to the upper and lower surfaces at the edge of the circuit boards 4, so as to achieve the purpose of wrapping the tape 3 around the edge of the circuit boards 4.

[0041] The first support member 16 and the first telescopic limit member 17 retract below the transmission roller 12. The circuit board 4 moves to the reversing area 14 under the conveying action of the conveying mechanism 1. When the circuit board 4 moves to abut against the outside of the second telescopic limit member 15, it is positioned above the support plate 81 of the reversing mechanism. The second support member 8 pushes the circuit board 4 upwards, lifting it away from the transmission roller 12 until it is higher than the second telescopic limit member 15. Then, driven by the reversing motor 9 and linked by the gear set 10, the second support member 8 and the circuit board 4 rotate synchronously by 90°, achieving a 90° reversal of the circuit board 4. Then, by retracting the second support member 8 and the second telescopic limit member 15 below the transmission roller 12, it enters the next edge-wrapping area 13 for edge-wrapping, thus completing the edge-wrapping work around the circuit board 4. This replaces manual edge-wrapping, and the continuous conveying by the conveying mechanism eliminates the need for repeated picking and placing of the circuit board 4, improving the edge-wrapping efficiency of the edge-wrapping machine.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An edge-wrapping machine for circuit boards, characterized in that: include: A conveying mechanism (1) is used to convey circuit boards (4); Edge wrapping mechanism (2), there are two sets of edge wrapping mechanism (2), the two sets of edge wrapping mechanism (2) are distributed along the conveying direction of conveying mechanism (1), the edge wrapping mechanism (2) is used to wrap the edges of the circuit board (4) on both sides of the conveying mechanism (1); A reversing mechanism is located between two sets of edge-sealing mechanisms (2). The reversing mechanism is used to perform a 90º rotation operation on the circuit board (4) of the conveying mechanism (1) in the horizontal direction.

2. The edge-wrapping machine for circuit boards according to claim 1, characterized in that: The conveying mechanism (1) includes a horizontally arranged frame (11), a plurality of horizontally rotatably connected transmission rollers (12) to the inside of the frame (11), and a first driving member for driving the plurality of transmission rollers (12) to rotate synchronously. The plurality of transmission rollers (12) are parallel to each other and spaced apart along the length direction of the frame (11).

3. The edge-wrapping machine for circuit boards according to claim 2, characterized in that: The frame (11) is provided with a first top support (16). When the circuit board (4) moves to the edge-binding mechanism (2), the top of the first top support (16) extends upward into the gap between the adjacent transmission rollers (12) and pushes the circuit board (4) away from the surface of the transmission rollers (12).

4. The edge-wrapping machine for circuit boards according to claim 3, characterized in that: There are two edge-binding mechanisms (2) in the same group. The two edge-binding mechanisms (2) are symmetrically distributed on both sides of the conveying mechanism (1). The edge-binding mechanism (2) includes a support base (21) set on one side of the frame (11), two synchronous rollers (22) vertically rotatably connected to the support base (21), a synchronous belt (23) sleeved between the two synchronous rollers (22), and a synchronous motor that drives the synchronous rollers (22) to rotate. The two synchronous rollers (22) are distributed along the length of the frame (11). The support base (21) is vertically rotatably connected to a rotating cylinder (211) for fixing the tape (3) roll. The tape (3) is wrapped around the outside of the timing belt (23), and the adhesive surface of the tape (3) is set away from the timing belt (23). The support base (21) is provided with two cutting mechanisms (5). When the circuit board (4) stops at the edge-wrapping mechanism (2), the two cutting mechanisms (5) are placed in front and behind the circuit board (4) respectively, and the cutting mechanisms (5) cut the tape (3). The synchronous belt (23) is provided with a plurality of first pushing members (6), which are distributed at intervals along the rotation direction of the synchronous belt (23). The end of the first pushing member (6) is provided with a clamp (61), which is used to clamp the tape (3) to the outside of the synchronous belt (23). The clamp (61) is bonded to the edge of the adhesive surface of the tape (3). When the circuit board (4) moves to be aligned with the tape (3), the first pushing member (6) pushes towards the circuit board (4) until the adhesive surface of the tape (3) is bonded to the side of the circuit board (4). The synchronous belt (23) is provided with a plurality of second pushing members (7). The plurality of second pushing members (7) are distributed at intervals along the rotation direction of the synchronous belt (23). When the clamp (61) drives the tape (3) to move toward the circuit board (4) and sticks the tape (3) to the side of the circuit board (4), the second pushing members (7) push the portion of the tape (3) protruding from the upper and lower surfaces of the circuit board (4) to drive the portion of the tape (3) protruding from the upper and lower surfaces of the circuit board (4) to bend toward the surface of the circuit board (4) and stick it.

5. The edge-wrapping machine for circuit boards according to claim 4, characterized in that: The first pusher (6) and the second pusher (7) are disposed inside the synchronous belt (23). The outer periphery of the synchronous roller (22) is provided with a plurality of annular clearance grooves (221). The plurality of annular clearance grooves (221) are distributed at intervals along the axial direction of the synchronous roller (22). When the first pusher (6) and the second pusher (7) move with the synchronous belt (23), they pass through the annular clearance grooves (221).

6. The edge-wrapping machine for circuit boards according to claim 4, characterized in that: Two first telescopic limiting members (17) are vertically arranged inside the frame (11). The two first telescopic limiting members (17) correspond one-to-one with two sets of edge-binding mechanisms (2). The first telescopic limiting members (17) extend out of the gap between adjacent transmission rollers (12). When the circuit board (4) moves with the conveying mechanism (1) to abut against the outside of the first telescopic limiting member (17), the circuit board (4) is located between the two edge-binding mechanisms (2). When the circuit board (4) completes the edge-binding step, the first telescopic limiting member (17) retracts to below the transmission roller (12).

7. The edge-wrapping machine for circuit boards according to claim 1, characterized in that: The reversing mechanism includes a second top support (8) vertically rotatably connected to the frame (11) and a second driving member that drives the second top support (8) to rotate. When the circuit board (4) moves above the reversing mechanism, the second top support (8) pushes the circuit board (4) upward until the circuit board (4) separates from the transmission roller (12). The second driving member drives the second top support (8) to rotate 90º.

8. The edge-wrapping machine for circuit boards according to claim 7, characterized in that: The frame (11) is provided with a second telescopic limiting member (15), which extends out of the gap between adjacent transmission rollers (12). When the circuit board (4) moves to abut against the outside of the second telescopic limiting member (15), the circuit board (4) is located above the reversing mechanism. When the circuit board (4) completes the 90° reversing step, the first telescopic limiting member (17) retracts to below the transmission roller (12).

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