PCB (Printed Circuit Board) turnover equipment

Abstract

The utility model belongs to the field of PCB (Printed Circuit Board) production, and discloses PCB turnover equipment, which comprises a pair of symmetrically arranged strip-shaped plates, the upper ends of the strip-shaped plates are rotationally clamped with turntables, the central axes of the two turntables are located on the same horizontal axis, and the ends, close to each other, of the two turntables extend into the area between the two strip-shaped plates; the side faces, close to each other, of the two rotating discs are each provided with a plurality of plate grooves annularly and evenly distributed around the central axis of the rotating disc, the central axes of the plate grooves all face the central axis of the rotating disc, the plate grooves all penetrate through the circumferential walls of the rotating discs, and the two groove walls of the ends, away from each other, of the plate groove in any rotating disc and the plate groove in the other rotating disc are flush with the two side walls of the ends, close to each other, of the two strip-shaped plates correspondingly. The plate grooves in the two turntables are symmetrically arranged; a driving mechanism connected with the two turntables is arranged between the two strip-shaped plates and is used for driving the two turntables to rotate synchronously; the problems that in the prior art, the continuity of board turning operation is poor, and continuous board turning operation on a large batch of PCBs is difficult to carry out are solved.

Description

Technical Field

[0001] This utility model belongs to the field of PCB board manufacturing, and specifically relates to a PCB flipping device. Background Technology

[0002] Printed circuit boards (PCBs) are important carriers for the electrical connection of electronic components and are widely used in various electronic devices. In the production process of PCBs, both sides of the circuit board usually need to be processed. In order to improve production efficiency, automated equipment is increasingly used in PCB processing. However, existing PCB flipping equipment still has some shortcomings in actual use.

[0003] To address this issue, existing technologies have proposed several automated PCB flipping devices. For example, patent CN222147904U discloses a PCB flipping machine that uses mechanical structures such as electric push rods, gear racks, and gear rings to automatically flip circuit boards. However, this device still requires manual placement of the PCB board onto the flipping machine and manual removal of the PCB board after flipping. While this method reduces manual operation, it still has limitations, especially in high-frequency, high-volume production environments where manual intervention still affects production efficiency. Therefore, existing technologies suffer from poor continuity of flipping operations, making them unsuitable for continuous flipping of large batches of PCB boards. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a PCB flipping device, which solves the problem that the existing technology has poor continuity of flipping operation and is difficult to apply to continuous flipping operation of large batches of PCB boards.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A PCB flipping device includes a pair of symmetrically placed strips;

[0007] Each strip plate has a turntable rotatably engaged at its upper end. The central axes of the two turntables are on the same horizontal axis, and the ends of the two turntables that are close to each other extend into the area between the two strip plates.

[0008] On the side of the two turntables that are close to each other, there are multiple slots evenly distributed in a ring around the central axis of the turntable. The central axis of the slots is facing the central axis of the turntable. The slots penetrate the peripheral wall of the turntable. The two slot walls at the far ends of the slots on one turntable and the slots on the other turntable are flush with the two side walls at the close ends of the two shaped plates, and the slots on the two turntables are placed symmetrically.

[0009] A drive mechanism is provided between the two plates to connect the two turntables. The drive mechanism is used to drive the two turntables to rotate synchronously.

[0010] A conveying mechanism is provided between the two shaped plates. The conveying mechanism is used to transport the PCB board horizontally towards or away from the turntable.

[0011] The lower end of the strip plate is provided with a base plate. One strip plate is fixed to the base plate, and the other strip plate is slidably connected to the base plate along the central axis of the turntable.

[0012] The conveying mechanism includes a pair of symmetrically placed tire units, with each tire unit corresponding to a strip plate. The tire units are all located on the side of the corresponding strip plate that is closer to the other strip plate.

[0013] Each belt unit includes a pair of symmetrically placed synchronous pulleys, which are located on both sides of the central axis of the turntable. The synchronous pulleys are coaxial with the turntable and are rotatably engaged with the side wall of the strip plate. An annular synchronous toothed belt is fitted between the two synchronous pulleys. An arc plate is placed coaxially below the turntable and is fixedly connected to the strip plate. A pair of symmetrically placed support bars are fixed on the strip plate, which are located on both sides of the central axis of the turntable. After the annular synchronous toothed belt meshes with the upper end of the synchronous pulley, it extends along the upper end of the support bar to a position close to the turntable. The end of the annular synchronous toothed belt near the turntable passes through the lower part of the arc plate.

[0014] When any slot rotates to a horizontal position, the upper and lower slot walls are symmetrical about the central axis of the turntable, and the lower slot wall is flush with the upper surface of the part of the annular synchronous toothed belt directly above the support plate.

[0015] The conveying mechanism also includes a fixed plate that is vertically fixed to the base plate. Two strip plates are located on the same side of the fixed plate, and the strip plate away from the fixed plate is fixed to the base plate. A pair of symmetrically placed first rotating shafts are rotatably connected to the fixed plate. The two synchronous pulleys on any belt unit are slidably sleeved on the two first rotating shafts. Each first rotating shaft has a first groove that is placed in the same direction. The inner peripheral wall of the synchronous pulley is provided with a first protrusion that is slidably engaged with the first groove. A first rotating motor is installed on the fixed plate. The output shaft of the first rotating motor is connected to one end of any first rotating shaft.

[0016] The drive mechanism includes a second rotating shaft rotatably connected to a fixed plate. The second rotating shaft is placed coaxially with the turntable. A second sliding groove is provided on the second rotating shaft. Both turntables are slidably sleeved on the second rotating shaft, and a second protrusion is provided on the inner side of each turntable that slides close to the second sliding groove.

[0017] The drive mechanism also includes a second rotating motor mounted on a fixed plate. A sector gear is fixedly sleeved on the output shaft of the second rotating motor, and a first gear is fixedly sleeved on the second rotating shaft. The sector gear meshes with the first gear.

[0018] When the sector gear rotates one revolution, the angle of rotation of the first gear is equal to the angle between two adjacent slots on any turntable;

[0019] A screw is rotatably connected to the fixed plate. The screw is placed coaxially with the turntable. A strip plate near the end of the fixed plate is threaded onto the screw. A handle is rotatably connected to the fixed plate. The handle is fixed to one end of the screw.

[0020] The turntable is provided with circular grooves on its circumference, and limit rings are fixed on the strip plates. The limit rings are rotated and fitted into the circular grooves.

[0021] The beneficial effects of this utility model are:

[0022] 1. The PCB board is placed on the conveyor mechanism between the two shaped boards. The conveyor mechanism drives the PCB board to approach the turntable first. At the same time, the two shaped boards interlock with each other during the conveying process to limit and constrain the PCB board and prevent it from tilting during the conveying process. After both sides of the PCB board enter the board slots on the two turntables respectively, the drive mechanism drives the two turntables to rotate synchronously, so that the turntables drive the PCB board in the board slot to rotate upward. After rotating 180°, the PCB board is automatically flipped. The conveyor mechanism drives the flipped PCB board away from the turntable, which effectively improves the automation level of the flipping operation.

[0023] Meanwhile, when PCB boards are continuously conveyed and approach the turntable, after any PCB board enters the board slot, the remaining PCB boards can abut against the circumferential wall of the turntable. After another board slot rotates to be flush with the PCB board, the PCB board is sent into the board slot again by the conveying mechanism. This can improve the continuity of PCB board flipping operations, so as to be suitable for continuous flipping operations of large batches of PCB boards, while reducing the possibility of missed flipping.

[0024] 2. The base plate, screw, and throttle allow for easy adjustment of the spacing between the two plates, making it suitable for flipping PCBs of different sizes and specifications.

[0025] 3. The combination of synchronous pulley, annular synchronous toothed belt, support plate, arc plate, first rotating shaft, first sliding groove and first protrusion facilitates the driving of the PCB board before flipping the plate to approach the turntable and the driving of the PCB board after flipping the plate to move away from the turntable. The synchronous pulley is slidably sleeved on the first rotating shaft, which can avoid interference with the adjustment of the distance between the two plates.

[0026] 4. The combination of the sector gear, the first gear, and the second rotating motor facilitates the intermittent rotation of the turntable. When the sector gear separates from the first gear, the turntable stops rotating, allowing the PCB board to enter and exit the slot. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is a schematic diagram of a portion of the screw section of this utility model;

[0030] Figure 3 This is a partial structural diagram of the support strip of this utility model;

[0031] Figure 4 This is a partial structural diagram of the first gear of this utility model. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] This combination Figures 1 to 4 This describes an embodiment of a PCB flipping device. Specifically, the PCB flipping device is constructed as a split structure, comprising components such as a strip plate 100, a turntable 200, a board groove 201, a drive mechanism 300, and a conveying mechanism 400. When PCBs are continuously conveyed and approach the turntable 200, after any PCB enters the board groove 201, the remaining PCBs can abut against the peripheral wall of the turntable 200. When the subsequent board grooves 201 rotate to be flush with the subsequent PCBs, the subsequent PCBs can be sequentially fed into the board grooves 201 by the conveying mechanism 400. This improves the continuity of the PCB flipping operation and reduces the possibility of missed flips.

[0034] Please refer to Figures 1 to 4 A PCB flipping device includes a pair of symmetrically placed strips 100;

[0035] The upper ends of the strip plates 100 are rotatably connected to turntables 200, the central axes of the two turntables 200 are on the same horizontal axis, and the close ends of the two turntables 200 extend into the area between the two strip plates 100.

[0036] On the side of each of the two turntables 200 that are close to each other, there are multiple plate grooves 201 evenly distributed in a ring around the central axis of the turntable 200. The central axis of the plate grooves 201 is facing the central axis of the turntable 200. The plate grooves 201 penetrate the peripheral wall of the turntable 200. The two groove walls at the far ends of the plate grooves 201 on one turntable 200 and the plate grooves 201 on the other turntable 200 are respectively flush with the two side walls at the close ends of the two shaped plates 100. The plate grooves 201 on the two turntables 200 are placed symmetrically.

[0037] A drive mechanism 300 is provided between the two plates 100 to connect the two turntables 200. The drive mechanism 300 is used to drive the two turntables 200 to rotate synchronously.

[0038] A conveying mechanism 400 is provided between the two shaped plates 100. The conveying mechanism 400 is used to transport the PCB board to or away from the turntable 200 in the horizontal direction.

[0039] It should be noted that the conveying mechanism 400 is placed horizontally, with its two ends located on both sides of the central axis of the turntable 200. When the conveying mechanism 400 is on either side of the central axis of the turntable 200, it is used to drive the PCB board closer to the turntable 200. When the conveying mechanism 400 is on the other side of the central axis of the turntable 200, it is used to drive the PCB board away from the turntable 200.

[0040] When using this equipment, the PCB board is placed on the conveying mechanism 400 between the two shaped plates 100. The conveying mechanism 400 drives the PCB board to approach the turntable 200. At the same time, the two shaped plates 100 interlock with each other during the conveying process, which can limit and constrain the PCB board to prevent the PCB board from tilting during the conveying process. After both sides of any PCB board enter the board slots 201 on the two turntables 200 respectively, the driving mechanism 300 drives the two turntables 200 to rotate synchronously, so that the turntables 200 drive the PCB board in the board slot 201 to rotate upward. After rotating 180°, the PCB board is flipped, and the conveying mechanism 400 drives the flipped PCB board away from the turntable 200, which effectively improves the automation level of the flipping operation.

[0041] When PCB boards are continuously conveyed and approach the turntable 200, after any PCB board enters the board slot 201, the remaining PCB boards can abut against the peripheral wall of the turntable 200. When the subsequent board slots 201 rotate to be flush with the subsequent PCB boards, the subsequent PCB boards can be sent into the board slots 201 in sequence through the conveying mechanism 400. This can improve the continuity of PCB board flipping operations, making it suitable for continuous flipping operations of large batches of PCB boards, while reducing the possibility of missed flipping.

[0042] The lower end of the strip plate 100 is provided with a base plate 500. One strip plate 100 is fixed to the base plate 500, and the other strip plate 100 is slidably connected to the base plate 500 along the central axis of the turntable 200. By controlling and adjusting the distance between the two strip plates 100, the strip plate 100 synchronously drives the turntable 200 to move, so as to be suitable for flipping PCBs of different sizes and specifications.

[0043] The conveying mechanism 400 includes a pair of symmetrically placed tire units, each tire unit corresponding to a strip plate 100, and each tire unit is disposed on the side of the corresponding strip plate 100 close to the other strip plate 100.

[0044] Each belt unit includes a pair of symmetrically placed synchronous pulleys 401. The two synchronous pulleys 401 are located on both sides of the central axis of the turntable 200. The synchronous pulleys 401 are coaxially placed with the turntable 200 and are rotatably engaged with the side wall of the strip plate 100. An annular synchronous toothed belt 402 is sleeved between the two synchronous pulleys 401. An arc plate 403 is coaxially placed below the turntable 200. The arc plate 403 is fixedly connected to the strip plate 100. A pair of symmetrically placed support bars 404 are fixed on the strip plate 100. The two support bars 404 are located on both sides of the central axis of the turntable 200. After the annular synchronous toothed belt 402 meshes with the upper end of the synchronous pulley 401, it extends along the upper end of the support bar 404 to a position close to the turntable 200. The end of the annular synchronous toothed belt 402 near the turntable 200 passes under the arc plate 403.

[0045] By driving the synchronous pulley 401 to rotate, the synchronous pulley 401 drives the annular synchronous toothed belt 402, and the annular synchronous toothed belt 402 drives the PCB board to move closer to or away from the turntable 200.

[0046] When any slot 201 is rotated to a horizontal position, the upper and lower slot walls of the slot 201 are symmetrically positioned about the central axis of the turntable 200, and the lower slot wall of the slot 201 is flush with the upper surface of the part of the annular synchronous toothed belt 402 located directly above the support plate; so as to facilitate the entry and exit of the PCB board from the slot 201.

[0047] The conveying mechanism 400 also includes a fixed plate 405 vertically fixed to the base plate 500. Two strip plates 100 are located on the same side of the fixed plate 405, and the strip plate 100 away from the fixed plate 405 is fixed to the base plate 500. A pair of symmetrically placed first rotating shafts 406 are rotatably connected to the fixed plate 405. The two synchronous pulleys 401 on any belt unit are slidably sleeved on the two first rotating shafts 406 respectively. Each of the first rotating shafts 406 has a first sliding groove 4061 placed coaxially. The inner peripheral wall of each synchronous pulley 401 is provided with The first protrusion is slidably engaged with the first groove 4061. A first rotating motor 407 is mounted on the fixing plate 405. The output shaft of the first rotating motor 407 is connected to one end of any first rotating shaft 406. By turning on the first rotating motor 407, the first rotating motor 407 drives the first rotating shaft 406. Through the cooperation between the first groove 4061 and the first protrusion, the synchronous pulley 401 is driven to rotate. The synchronous pulley 401 is slidably sleeved on the first rotating shaft 406, which can avoid interference with the adjustment of the distance between the two plates 100.

[0048] The drive mechanism 300 includes a second rotating shaft 301 rotatably connected to the fixed plate 405. The second rotating shaft 301 is placed coaxially with the turntable 200. The second rotating shaft 301 is provided with a second sliding groove 3011 placed coaxially. The two turntables 200 are slidably sleeved on the second rotating shaft 301, and the inner side of the turntable 200 is provided with a second protrusion that slides close to the second sliding groove 3011. The second sliding groove 3011 and the second protrusion are provided to facilitate the synchronous driving of the two turntables 200 to rotate without interfering with the adjustment of the distance between the two plates 100.

[0049] The drive mechanism 300 also includes a second rotary motor 302 mounted on the fixed plate 405. A sector gear 303 is fixedly sleeved on the output shaft of the second rotary motor 302, and a first gear 304 is fixedly sleeved on the second rotating shaft 301. The sector gear 303 meshes with the first gear 304.

[0050] When the sector gear 303 rotates one revolution, the rotation angle of the first gear 304 is equal to the included angle between two adjacent slots 201 on any turntable 200;

[0051] The combination of sector gear 303 and first gear 304 facilitates the intermittent driving of turntable 200 to rotate. When sector gear 303 separates from first gear 304, turntable 200 stops rotating, so that PCB board can enter and exit board slot 201.

[0052] A screw 600 is rotatably connected to the fixed plate 405. The screw 600 and the turntable 200 are placed coaxially. The strip plate 100 near the end of the fixed plate 405 is threaded onto the screw 600. A handle 601 is rotatably connected to the fixed plate 405. The handle 601 is fixed to one end of the screw 600. By rotating the handle 601 and the screw 600, the position of the strip plate 100 near the end of the fixed plate 405 can be adjusted.

[0053] The turntable 200 has circular grooves 202 on its periphery, and the strip plate 100 has a limit ring 700 fixed on it. The limit ring 700 is rotatably fitted into the circular groove 202. The circular groove 202 and the limit ring 700 are configured to achieve synchronous movement of the turntable 200 and the strip plate 100.

[0054] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A PCB flipping device, comprising a pair of symmetrically placed strip plates (100), characterized in that: The upper ends of the strip plate (100) are rotatably connected to turntables (200), the central axes of the two turntables (200) are on the same horizontal axis, and the close ends of the two turntables (200) extend into the area between the two strip plates (100); On the side of each of the two turntables (200) that are close to each other, there are multiple plate grooves (201) evenly distributed in a ring around the central axis of the turntable (200). The central axis of the plate grooves (201) is facing the central axis of the turntable (200). The plate grooves (201) penetrate the peripheral wall of the turntable (200). The two groove walls at the far ends of the plate grooves (201) on any turntable (200) and the plate grooves (201) on the other turntable (200) are respectively flush with the two side walls at the close ends of the two shaped plates (100), and the plate grooves (201) on the two turntables (200) are placed symmetrically. A drive mechanism (300) is provided between the two plates (100) to connect the two turntables (200). The drive mechanism (300) is used to drive the two turntables (200) to rotate synchronously. A conveying mechanism (400) is provided between the two shaped plates (100). The conveying mechanism (400) is used to transport the PCB board to or away from the turntable (200) in the horizontal direction.

2. The PCB flipping device according to claim 1, characterized in that, The lower end of the strip plate (100) is provided with a base plate (500). One strip plate (100) is fixed to the base plate (500), and the other strip plate (100) is slidably connected to the base plate (500) along the central axis of the turntable (200).

3. The PCB flipping device according to claim 2, characterized in that, The conveying mechanism (400) includes a pair of symmetrically placed tire units, each tire unit corresponding to a strip plate (100), and each tire unit is located on the side of the corresponding strip plate (100) close to the other strip plate (100). Each belt unit includes a pair of symmetrically placed synchronous pulleys (401). The two synchronous pulleys (401) are located on both sides of the central axis of the turntable (200). The synchronous pulleys (401) are placed coaxially with the turntable (200), and the synchronous pulleys (401) are rotatably engaged with the side wall of the strip plate (100). An annular synchronous toothed belt (402) is sleeved between the two synchronous pulleys (401). An arc-shaped plate (403) is placed coaxially below the turntable (200). (403) is fixedly connected to the strip plate (100). A pair of symmetrically placed support bars (404) are fixed on the strip plate (100). The two support bars (404) are located on both sides of the central axis of the turntable (200). After the annular synchronous toothed belt (402) meshes with the upper end of the synchronous pulley (401), it extends along the upper end of the support bar (404) to a position close to the turntable (200). The end of the annular synchronous toothed belt (402) close to the turntable (200) passes under the arc plate (403).

4. The PCB flipping device according to claim 3, characterized in that, When any of the slots (201) is rotated to a horizontal position, the upper and lower slot walls of the slot (201) are symmetrically placed about the central axis of the turntable (200), and the lower slot wall of the slot (201) is flush with the upper surface of the part of the annular synchronous toothed belt (402) located directly above the support plate.

5. The PCB flipping device according to claim 4, characterized in that, The conveying mechanism (400) also includes a fixed plate (405) vertically fixed on the base plate (500). Two strip plates (100) are located on the same side of the fixed plate (405), and the strip plate (100) away from the fixed plate (405) is fixed to the base plate (500). A pair of symmetrically placed first rotating shafts (406) are rotatably connected to the fixed plate (405). Two synchronous pulleys (401) on any belt unit are slidably sleeved on the two first rotating shafts (406). Each first rotating shaft (406) is provided with a first groove (4061) placed in the same direction. Each synchronous pulley (401) is provided with a first protrusion that slides and engages with the first groove (4061) on its inner peripheral wall. A first rotating motor (407) is installed on the fixed plate (405). The output shaft of the first rotating motor (407) is connected to one end of any first rotating shaft (406).

6. The PCB flipping device according to claim 5, characterized in that, The drive mechanism (300) includes a second rotating shaft (301) rotatably connected to a fixed plate (405). The second rotating shaft (301) and the turntable (200) are placed on the same axis. The second rotating shaft (301) is provided with a second sliding groove (3011) placed on the same axis. The two turntables (200) are slidably sleeved on the second rotating shaft (301), and the inner side of the turntable (200) is provided with a second protrusion that slides close to the second sliding groove (3011).

7. The PCB flipping device according to claim 6, characterized in that, The drive mechanism (300) also includes a second rotary motor (302) mounted on a fixed plate (405). A sector gear (303) is fixedly sleeved on the output shaft of the second rotary motor (302), and a first gear (304) is fixedly sleeved on the second rotating shaft (301). The sector gear (303) meshes with the first gear (304). When the sector gear (303) rotates one revolution, the angle of rotation of the first gear (304) is equal to the angle between two adjacent slots (201) on any turntable (200).

8. The PCB flipping device according to claim 7, characterized in that, A screw (600) is rotatably connected to the fixed plate (405). The screw (600) and the turntable (200) are placed in the same direction. A strip plate (100) near the end of the fixed plate (405) is threaded onto the screw (600). A handle (601) is rotatably connected to the fixed plate (405). The handle (601) is fixed to one end of the screw (600).

9. The PCB flipping device according to claim 8, characterized in that, The turntable (200) has a circular groove (202) on its circumferential wall, and a limit ring (700) is fixed on the strip plate (100). The limit ring (700) is rotatably sleeved in the circular groove (202).

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