Automatic feeding, discharging and overturning device for PCB (Printed Circuit Board)

Abstract

The invention provides a PCB automatic feeding and discharging turnover device which comprises a feeding mechanism, a turnover mechanism and a discharging mechanism, a feeding conveying assembly is arranged on the feeding mechanism, a clamping conveying assembly and a turnover assembly are arranged on the turnover mechanism, and a discharging conveying assembly is arranged on the discharging mechanism; wherein the feeding and conveying assembly is used for bearing a PCB to be overturned and conveying the PCB to the clamping and conveying assembly, the overturning assembly is used for overturning the PCB, and the clamping and conveying assembly is used for clamping the PCB in the process that the overturning assembly overturns the PCB. The clamping and conveying assembly is further used for conveying the overturned PCBs to the discharging and conveying assembly, and the discharging and conveying assembly is used for sending out the PCBs. The PCB overturning device can solve the problems that an existing manual PCB overturning scheme is low in working efficiency and has potential quality hazards.

Description

Technical Field

[0001] This invention relates to the field of intelligent equipment design technology, and more specifically, to an automatic PCB board loading, unloading and flipping device. Background Technology

[0002] A PCB (Printed Circuit Board) is an important electronic component, serving as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board.

[0003] In the PCB manufacturing process, most PCBs typically require processing on both their top and bottom surfaces. Specifically, after the PCB is formed, the protective film on its surface needs to be removed, and then it needs to be flipped over to allow the back side of the PCB to proceed to the next process. In existing solutions, after the first-stage equipment removes the film from the PCB, manual operation is required to unload, flip, and reload the PCB.

[0004] However, the existing solution has the following technical problems: 1. Efficiency bottleneck: Manual operation involves multiple steps such as unloading, flipping and reloading, which takes a long time and directly affects the production line cycle time and overall efficiency; 2. Risk of missed flipping: During manual flipping, omissions may occur due to negligence or fatigue, requiring additional inspection or rework, which increases the difficulty of quality control; 3. Process complexity: Operators need to execute different processing logic for the two scenarios of whether or not the process is flipped, which not only increases training costs but also easily leads to errors due to confusion. 4. Quality risks: If the flipping process is missed and not detected, the PCB board may be processed incorrectly in subsequent processes after reloading. This may result in minor issues requiring rework or even complete scrapping, causing material and cost losses.

[0005] Based on the above-mentioned technical problems, there is an urgent need for a fully automated device for loading, unloading, and flipping PCB boards. Summary of the Invention

[0006] In view of the above problems, the purpose of this invention is to provide an automatic PCB board loading, unloading and flipping device to solve the problems of low work efficiency and potential quality risks in the existing manual PCB board flipping solution.

[0007] The present invention provides an automatic PCB board loading, unloading, and flipping device, comprising a loading mechanism, a flipping mechanism, and an unloading mechanism. The loading mechanism is equipped with a loading conveying component, the flipping mechanism is equipped with a clamping conveying component and a flipping component, and the unloading mechanism is equipped with an unloading conveying component. The loading and conveying assembly is used to receive the PCB board to be flipped and to convey the PCB board to the clamping and conveying assembly. The flipping assembly is used to flip the PCB board. The clamping and conveying assembly is used to clamp the PCB board during the flipping process. The clamping and conveying assembly is also used to convey the flipped PCB board to the unloading and conveying assembly. The unloading and conveying assembly is used to send the PCB board out.

[0008] Alternatively, the feeding mechanism may include a first feeding module and a second feeding module, and the feeding conveying assembly may include a first feeding conveyor belt and a second feeding conveyor belt arranged synchronously; wherein the first feeding conveyor belt is disposed on the first feeding module, and the second feeding conveyor belt is disposed on the second feeding module; and... When the PCB board is on the feeding mechanism, the PCB board is positioned between the first feeding module and the second feeding module, with one side of the PCB board supported on the first feeding conveyor belt and the other side of the PCB board supported on the second feeding conveyor belt.

[0009] Alternatively, a first feeding elastic pressure roller can be provided above the first feeding conveyor belt, and a second feeding elastic pressure roller can be provided above the second feeding conveyor belt; wherein the first feeding elastic pressure roller is used to press down on one side of the PCB board, and the second feeding elastic pressure roller is used to press down on the other side of the PCB board; and / or, A first feeding tensioning roller is provided on the first feeding conveyor belt, and a second feeding tensioning roller is provided on the second feeding conveyor belt.

[0010] Alternatively, the flipping mechanism may include a first flipping module and a second flipping module, and the clamping and conveying assembly may include a first conveyor belt, a second conveyor belt, a third conveyor belt, and a fourth conveyor belt; wherein the first and second conveyor belts are disposed on the first flipping module, and the third and fourth conveyor belts are disposed on the second flipping module; and... When the PCB board is on the flipping mechanism, the PCB board is limited between the first flipping module and the second flipping module, one side of the PCB board is limited between the first conveyor belt and the second conveyor belt, and the other side of the PCB board is limited between the third conveyor belt and the fourth conveyor belt.

[0011] Alternatively, the clamping and conveying assembly may further include a first clamping member and a second clamping member; wherein, During the flipping process of the flipping assembly, the first clamping member is used to clamp and fix one side of the PCB board between the first conveyor belt and the second conveyor belt, and the second clamping member is used to clamp and fix the other side of the PCB board between the third conveyor belt and the fourth conveyor belt.

[0012] Alternatively, the first clamping member includes a first clamping plate and a second clamping plate; wherein the first clamping plate is located on the side of the first conveyor belt away from the PCB board, and the second clamping plate is located on the side of the second conveyor belt away from the PCB board; during the flipping assembly flipping the PCB board, the first clamping plate is used to squeeze the first conveyor belt, and the second clamping plate is used to squeeze the second conveyor belt, so as to clamp and fix one side of the PCB board between the first conveyor belt and the second conveyor belt; The second clamping member includes a third clamping plate and a fourth clamping plate; wherein, the third clamping plate is located on the side of the third conveyor belt away from the PCB board, and the fourth clamping plate is located on the side of the fourth conveyor belt away from the PCB board; during the flipping assembly flipping the PCB board, the third clamping plate is used to squeeze the third conveyor belt, and the fourth clamping plate is used to squeeze the fourth conveyor belt, so as to clamp and fix the other side of the PCB board between the third conveyor belt and the fourth conveyor belt.

[0013] Alternatively, the flipping assembly may include a first flipping motor and a second flipping motor that are synchronously configured; wherein, The first flip motor is used to drive the first flip module to flip, and the second flip motor is used to drive the second flip module to flip.

[0014] Alternatively, the unloading mechanism includes a first unloading module and a second unloading module, and the unloading conveying assembly includes a first unloading conveyor belt and a second unloading conveyor belt arranged synchronously; wherein the first unloading conveyor belt is disposed on the first unloading module, and the second unloading conveyor belt is disposed on the second unloading module; and... The PCB board is disposed between the first unloading module and the second unloading module, with one side of the PCB board supported on the first unloading conveyor belt and the other side of the PCB board supported on the second unloading conveyor belt.

[0015] Alternatively, a first elastic pressure roller can be provided above the first unloading conveyor belt, and a second elastic pressure roller can be provided above the second unloading conveyor belt; wherein the first elastic pressure roller is used to press down on one side of the PCB board to be flipped, and the second elastic pressure roller is used to press down on the other side of the PCB board to be flipped; and / or, A first feeding tensioning roller is provided on the first feeding conveyor belt, and a second feeding tensioning roller is provided on the second feeding conveyor belt.

[0016] Alternatively, the first feeding module, the first flipping module, and the first unloading module are located on the same side and fixedly connected; and a spacing adjustment mechanism is also included, which is used to drive the first feeding module, the first flipping module, and the first unloading module to move synchronously, so as to adjust the spacing between the first feeding module and the second feeding module, the spacing between the first flipping module and the second flipping module, and the spacing between the first unloading module and the second unloading module; wherein, the spacing adjustment mechanism includes a lead screw and a nut seat screwed on the lead screw, and the nut seat is connected to one of the first feeding module, the first flipping module, and the first unloading module.

[0017] Compared with the prior art, the automatic PCB board loading, unloading and flipping device provided by the present invention has the following advantages: By setting up components such as a feeding mechanism, a flipping mechanism, and a discharging mechanism, a complete fully automatic intelligent PCB board flipping device was constructed. Through intelligent collaborative control among the various internal mechanisms, the device can achieve fully unmanned operation of PCB board automatic feeding, precise positioning, stable clamping, high-speed flipping, and accurate discharging. It breaks through and minimizes human intervention, significantly improves production efficiency, and greatly reduces the risk of quality defects caused by human operation.

[0018] To achieve the foregoing and related objectives, one or more aspects of the invention include the features which will be described in detail below and specifically pointed out in the claims. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to include all such aspects and their equivalents. Attached Figure Description

[0019] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of the invention. In the drawings: Figure 1This is a first-view perspective perspective view of the PCB board automatic loading, unloading, and flipping device provided in an embodiment of the present invention. Figure 2 This is a second-view perspective perspective view of the PCB board automatic loading, unloading, and flipping device provided according to an embodiment of the present invention. Figure 3 A partial perspective view of the PCB board automatic loading, unloading, and flipping device provided in an embodiment of the present invention; Figure 4 This is a diagram illustrating the positional relationship between the conveyor belts in the automatic PCB board loading and unloading flipping device provided according to an embodiment of the present invention. Reference numerals: 1. Feeding motor; 2. Transport motor; 3. Tilting motor; 4. Unloading motor; 5. Spacing adjustment motor; 6. Lead screw; 7. Nut seat; 8. Connecting plate; 9. Slot; 10. Slide rail; 11. Support plate; 12. Mounting part; 13. First feeding elastic pressure roller; 14. First feeding tension roller; 15. First feeding conveyor belt; 16. First clamping plate; 17. First adjustment hole; 18. First conveyor belt; 19. Second adjustment hole; 20. Second conveyor belt; 21. First unloading elastic pressure roller; 23. First unloading tension roller; 24. Feeding mechanism; 100. First feeding module; 101. Second feeding module; 102. Tilting mechanism; 200. First tilting module; 201. Second tilting module; 202. Spacing adjustment mechanism; 400. Unloading mechanism; 500. First unloading module; 501. Second unloading module; 502. Detailed Implementation

[0020] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate structural component; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0023] The specific structure of the automatic PCB board loading, unloading, and flipping device provided by this invention is described in detail below.

[0024] Figure 1 This illustration shows a first-view three-dimensional structure of the automatic PCB board loading and unloading flipping device provided according to an embodiment of the present invention. Figure 2 This illustration shows a second-view three-dimensional structure of the automatic PCB board loading and unloading flipping device provided according to an embodiment of the present invention. Figure 3 A partial three-dimensional structure of the automatic PCB board loading, unloading, and flipping device provided according to an embodiment of the present invention is shown. Figure 4 A diagram illustrating the positional relationship between the conveyor belts in an automatic PCB board loading / unloading and flipping device provided according to an embodiment of the present invention is shown.

[0025] Combination Figures 1 to 4As shown in the figure, the PCB board automatic loading, unloading and flipping device provided by the present invention includes a support plate 11 for carrying various mechanical components as a carrier. The support plate 11 is provided with a loading mechanism 100, a flipping mechanism 200 and an unloading mechanism 500. The loading mechanism 100 receives the PCB board issued in the previous process and passes the PCB board to the flipping mechanism 200. The flipping mechanism 200 is used to flip the PCB board. The unloading mechanism 500 is used to send the flipped PCB board to the receiving component in the next process.

[0026] Specifically, a feeding conveyor assembly is provided on the feeding mechanism 100, a clamping conveyor assembly and a flipping assembly are provided on the flipping mechanism 200, and an unloading conveyor assembly is provided on the unloading mechanism 500. In actual use, the feeding conveyor assembly is used to receive the PCB board to be flipped and to convey the PCB board to the clamping conveyor assembly. The flipping assembly is used to flip the PCB board. The clamping conveyor assembly is used to clamp the PCB board during the flipping process of the flipping assembly. The clamping conveyor assembly is also used to convey the flipped PCB board to the unloading conveyor assembly. The unloading conveyor assembly is used to send the PCB board out.

[0027] In a specific embodiment of the present invention, to realize the feeding function of the feeding mechanism 100, the feeding mechanism 100 may include a first feeding module 101 and a second feeding module 102 arranged vertically symmetrically, and the feeding conveying assembly may include a first feeding conveyor belt 15 and a second feeding conveyor belt arranged synchronously; wherein, the first feeding conveyor belt 15 is disposed on the first feeding module 101, and the second feeding conveyor belt is disposed on the second feeding module 102. In actual operation, when the PCB board is on the feeding mechanism 100, the PCB board is laterally limited between the first feeding module 101 and the second feeding module 102. One side (side position) of the PCB board is supported on the first feeding conveyor belt 15 and driven forward by the first feeding conveyor belt 15, and the other side (side position) of the PCB board is supported on the second feeding conveyor belt and driven forward by the second feeding conveyor belt.

[0028] It should be noted that, in order to achieve synchronous movement of the first feeding conveyor belt 15 and the second feeding conveyor belt, the first feeding conveyor belt 15 and the second feeding conveyor belt can be driven to rotate by two feeding motors 1 respectively, and the two feeding motors 1 are controlled to rotate synchronously by a preset control center.

[0029] Furthermore, to improve the transmission stability of the PCB board on the feeding mechanism 100, a first feeding elastic pressure roller 13 can be provided above the first feeding conveyor belt 15, and a second feeding elastic pressure roller can be provided above the second feeding conveyor belt; wherein, the first feeding elastic pressure roller 13 is used to press down on one side of the PCB board so that the side of the PCB board is pressed and adhered to the surface of the first feeding conveyor belt 15; the second feeding elastic pressure roller is used to press down on the other side of the PCB board so that the side of the PCB board is pressed and adhered to the surface of the second feeding conveyor belt.

[0030] In addition, to achieve the desired tension between the first feeding conveyor belt 15 and the second feeding conveyor belt, a first feeding tensioning wheel 14 (with anti-static function) can be installed on the first feeding conveyor belt 15. The tension of the first feeding conveyor belt 15 can be adjusted by adjusting the position of the first feeding tensioning wheel 14. Similarly, a second feeding tensioning wheel (with anti-static function) can be installed on the second feeding conveyor belt. The tension of the second feeding conveyor belt can be adjusted by adjusting the position of the second feeding tensioning wheel.

[0031] In practical applications, such as Figure 4 As shown, for each component in the first feeding module 101, the first feeding conveyor belt 15 can be fitted on two driven wheels on both sides. The first feeding conveyor belt 15 passes around the driving wheel driven by the feeding motor 1. The rotation of the driving wheel drives the first feeding conveyor belt 15 to rotate. The first feeding conveyor belt 15 also passes around the first feeding tension wheel 14. The tension of the first feeding conveyor belt 15 can be adjusted by adjusting the position of the first feeding tension wheel 14 left and right. The first feeding elastic pressure wheel 13 can be controlled by a spring to press down on one side of the PCB board.

[0032] It should be noted that the configuration of each component in the second feeding module 102 can be the same as that of each component in the first feeding module 101. Therefore, the configuration of each component in the second feeding module 102 will not be described again.

[0033] In another specific embodiment of the present invention, the flipping mechanism 200 may include a first flipping module 201 and a second flipping module 202, wherein the first flipping module 201 is on the same side and aligned left and right with the first feeding module 101, and the second flipping module 202 is on the same side and aligned left and right with the second feeding module 102. The clamping and conveying assembly may include a first conveyor belt 18, a second conveyor belt 21, a third conveyor belt, and a fourth conveyor belt; wherein the first conveyor belt 18 and the second conveyor belt 21 are disposed on the first flipping module 201, and the first conveyor belt 18 and the second conveyor belt 21 are parallel to each other. The gap between the first conveyor belt 18 and the second conveyor belt 21 corresponds to the left-right position of the upper surface of the first feeding conveyor belt 15, allowing one side of the PCB board to be smoothly conveyed from the first feeding conveyor belt 15 to the space between the first conveyor belt 18 and the second conveyor belt 21. The third and fourth conveyor belts are mounted on the second flipping module 202. The third and fourth conveyor belts are parallel to each other, and the gap between them corresponds to the left-right position of the upper surface of the second feeding conveyor belt, allowing the other side of the PCB board to be smoothly conveyed from the second feeding conveyor belt to the space between the third and fourth conveyor belts. Furthermore, when the PCB board is on the flipping mechanism 200, the entire PCB board is confined between the first flipping module 201 and the second flipping module 202, with one side confined between the first conveyor belt 18 and the second conveyor belt 21, and the other side confined between the third and fourth conveyor belts.

[0034] It should be noted that the first conveyor belt 18, the second conveyor belt 21, the third conveyor belt, and the fourth conveyor belt are all driven by different transport motors 2, and, for the second conveyor belt 21 and the fourth conveyor belt (e.g. Figure 4 As shown), before the PCB board flips, both are simultaneously located on the underside of the PCB board and are used to move the PCB board. Therefore, the second conveyor belt 21 and the fourth conveyor belt need to be controlled by two synchronous transport motors 2; for the first conveyor belt 18 and the third conveyor belt (as shown), Figure 4 As shown), after the PCB board is flipped, both are located on the underside of the PCB board and are used to drive the PCB board to move. Therefore, the first conveyor belt 18 and the third conveyor belt need to be controlled by two synchronous transport motors 2.

[0035] Furthermore, to achieve the clamping and fixing of the PCB board by the clamping and conveying assembly, the clamping and conveying assembly may also include a first clamping member and a second clamping member; wherein, during the flipping process of the flipping assembly flipping the PCB board, the first clamping member is used to clamp and fix one side of the PCB board between the first conveyor belt 18 and the second conveyor belt 21, and the second clamping member is used to clamp and fix the other side of the PCB board between the third conveyor belt and the fourth conveyor belt, so as to prevent the PCB board from falling off during the flipping process.

[0036] Furthermore, the first clamping member may include a first clamping plate 16 and a second clamping plate 19; wherein the first clamping plate 16 is located on the side of the first conveyor belt 18 away from the PCB board, and the second clamping plate 19 is located on the side of the second conveyor belt 21 away from the PCB board; during the flipping assembly flipping the PCB board, the first clamping plate 16 is used to press the first conveyor belt 18, and the second clamping plate 19 is used to press the second conveyor belt 21, so as to clamp and fix one side of the PCB board between the first conveyor belt 18 and the second conveyor belt 21; the second clamping member includes a third clamping plate and a fourth clamping plate; wherein the third clamping plate is located on the side of the third conveyor belt away from the PCB board, and the fourth clamping plate is located on the side of the fourth conveyor belt away from the PCB board; during the flipping assembly flipping the PCB board, the third clamping plate is used to press the third conveyor belt, and the fourth clamping plate is used to press the fourth conveyor belt, so as to clamp and fix the other side of the PCB board between the third conveyor belt and the fourth conveyor belt.

[0037] Specifically, to enable each clamping plate (including the first clamping plate 16, the second clamping plate 19, the third clamping plate, and the fourth clamping plate) to compress the corresponding conveyor belt, the clamping plates can be positioned at corresponding locations in the first flipping module 201 and the second flipping module 202 (e.g., ...). Figure 2 The mounting part 12) is equipped with corresponding clamping cylinders (not shown in the figure). Each clamping cylinder is connected to the adjustment hole on the corresponding clamping plate through a clamping arm (not shown in the figure). The first clamping plate 16 is provided with a first adjustment hole 17, the second clamping plate 19 is provided with a second adjustment hole 20, the third clamping plate is provided with a third adjustment hole, and the fourth clamping plate is provided with a fourth adjustment hole. In actual operation, each clamping cylinder controls the corresponding clamping plate to clamp the PCB board through the clamping arm.

[0038] In another specific embodiment of the present invention, the flipping assembly may include a first flipping motor 3 and a second flipping motor 3 arranged synchronously; wherein, the first flipping motor 3 is used to drive the first flipping module 201 to flip, and the second flipping motor 3 is used to drive the second flipping module 202 to flip; as the first flipping module 201 and the second flipping module 202 rotate synchronously (rotate 180 degrees), the PCB board can be flipped 180 degrees.

[0039] It should be noted that in order to achieve a 180-degree flip of the first flip module and the second flip module, a slot 9 corresponding to the flip mechanism needs to be opened on the support plate. The first flip module and the second flip module flip 180 degrees through the slot 9.

[0040] The automatic PCB loading, unloading, and flipping device provided by this invention uses four clamping cylinders controlled by four solenoid valves to achieve synchronous clamping, combined with a corresponding clamping plate design. This ensures that the PCB is clamped securely without damage. Subsequently, two flipping motors 3 are synchronously driven by a program to complete a 180° efficient and stable flipping of the PCB, effectively avoiding PCB bending or folding problems.

[0041] In another specific embodiment of the present invention, in order to realize the unloading function of the unloading mechanism 500, the unloading mechanism 500 may include a first unloading module 501 and a second unloading module 502, and the unloading conveying assembly may include a first unloading conveyor belt and a second unloading conveyor belt arranged synchronously; wherein, the first unloading conveyor belt is arranged on the first unloading module 501, and the second unloading conveyor belt is arranged on the second unloading module 502; in actual operation, when the PCB board is on the unloading mechanism 500, the PCB board is laterally limited between the first unloading module 501 and the second unloading module 502, one side (side position) of the PCB board is supported on the first unloading conveyor belt and is driven forward by the first unloading conveyor belt, and the other side (side position) of the PCB board is supported on the second unloading conveyor belt and is driven forward by the second unloading conveyor belt.

[0042] It should be noted that, in order to achieve synchronous movement of the first and second feeding conveyor belts, the first and second feeding conveyor belts can be driven to rotate by two feeding motors 4 respectively, and the two feeding motors 4 are controlled to rotate synchronously by a preset control center.

[0043] Furthermore, to improve the transmission stability of the PCB board on the unloading mechanism 500, a first unloading elastic pressure roller 23 can be provided above the first unloading conveyor belt, and a second unloading elastic pressure roller can be provided above the second unloading conveyor belt; wherein, the first unloading elastic pressure roller 23 is used to press down on one side of the PCB board so that the side of the PCB board is pressed and adhered to the surface of the first unloading conveyor belt; the second unloading elastic pressure roller is used to press down on the other side of the PCB board so that the side of the PCB board is pressed and adhered to the surface of the second unloading conveyor belt.

[0044] In addition, to achieve the desired tension between the first and second feeding conveyor belts, a first feeding tensioning wheel 24 (with anti-static function) can be installed on the first feeding conveyor belt. The tension of the first feeding conveyor belt can be adjusted by adjusting the position of the first feeding tensioning wheel 24. Similarly, a second feeding tensioning wheel (with anti-static function) can be installed on the second feeding conveyor belt. The tension of the second feeding conveyor belt can be adjusted by adjusting the position of the second feeding tensioning wheel.

[0045] In the actual production process, such as Figure 4As shown, for each component in the first unloading module 501, the first unloading conveyor belt can be fitted onto two driven wheels on both sides. The first unloading conveyor belt passes around the drive wheel driven by the unloading motor 4. The rotation of the drive wheel drives the first unloading conveyor belt to rotate. The first unloading conveyor belt also passes around the first unloading tension wheel 24. The tension of the first unloading conveyor belt can be adjusted by adjusting the position of the first unloading tension wheel 24 left and right. The first unloading elastic pressure wheel 23 can be controlled by a spring to press down on one side of the PCB board.

[0046] It should be noted that the configuration of each component in the second unloading module 502 can be the same as that of each component in the first unloading module 501. Therefore, the configuration of each component in the second unloading module 502 will not be described again.

[0047] Furthermore, it should be noted that the first feeding module 101, the first flipping module 201, and the first unloading module 501 are grouped together and located on the same side; the first feeding module 101, the first flipping module 201, and the first unloading module 501 are grouped together and located on the other side; a conveying channel for PCB boards to pass through is formed between the two groups of modules; however, in actual use, the widths of different PCB boards are basically different. In order to make the conveying channel suitable for PCB boards of different widths, any group of modules (such as the first feeding module 101, the first flipping module 201, and the first unloading module 501) can be fixed and then its position adjusted to achieve the adjustment of the width of the conveying channel.

[0048] Specifically, the automatic PCB board loading and unloading flipping device provided by the present invention may further include a spacing adjustment mechanism 400. The spacing adjustment mechanism 400 is used to drive the first loading module 101, the first flipping module 201 and the first unloading module 501 to move synchronously, so as to move away from or closer to the second loading module 102, the second flipping module 202 and the second unloading module 502 respectively; thereby simultaneously adjusting the spacing between the first loading module 101 and the second loading module 102, the spacing between the first flipping module 201 and the second flipping module 202, and the spacing between the first unloading module 501 and the second unloading module 502, so as to realize the adjustment of the width of the conveying channel.

[0049] More specifically, the spacing adjustment mechanism 400 may include a lead screw 6 and a nut seat 7 screwed onto the lead screw 6. The lead screw 6 can be controlled to rotate by the spacing adjustment motor 5. The nut seat 7 is connected to one of the first loading module 101, the first flipping module 201, and the first unloading module 501. In actual use, the spacing adjustment motor 5 drives the lead screw 6 to rotate, which in turn drives the nut seat 7 to move. The nut seat 7 then drives the first loading module 101, the first flipping module 201, and the first unloading module 501 to move. The automatic PCB board loading, unloading, and flipping device provided by this invention can achieve intelligent adjustment of the PCB board width compatibility range through a precise lead screw 6 transmission mechanism. This mechanism can quickly adapt to different PCB board specifications through simple parameter settings, significantly improving the versatility and production efficiency of the equipment.

[0050] In addition, to enable the nut seat 7 to drive the first feeding module 101, the first flipping module 201, and the first unloading module 501 to move, a slide rail 10 can be set on the support plate 11, and a connecting plate 8 can be connected to the slide rail 10. Then, the first feeding module 101, the first flipping module 201, and the first unloading module 501 are fixedly connected. In actual operation, the nut seat 7 drives the connecting plate 8 to slide on the slide rail 10, thereby realizing the movement and guidance of the first feeding module 101, the first flipping module 201, and the first unloading module 501.

[0051] It should be noted that elastic pressure rollers with anti-static function (including the first feeding elastic pressure roller 13, the second feeding elastic pressure roller, the first discharging elastic pressure roller 23, and the second discharging elastic pressure roller) are respectively installed above the corresponding feeding conveyor belts (including the first discharging conveyor belt 15 and the second feeding conveyor belt) and discharging conveyor belts (including the first discharging conveyor belt and the second discharging conveyor belt). These rollers can adapt to PCB boards of different thicknesses and slight deformations, ensuring that all types of PCBs can pass through the conveyor section smoothly and stably, significantly improving the feeding reliability and compatibility of the production line.

[0052] To further illustrate the working principle of the automatic PCB board loading and unloading flipping device provided by the present invention, the operation process of the automatic PCB board loading and unloading flipping device provided by the present invention is described in detail below: First, the PCB board enters the loading station of the unloading mechanism 500 via a high-precision conveyor belt. Then, a photoelectric sensor detects the PCB board's arrival status in real time. Once the PCB board is in place, the loading motor 1 starts, cooperating with the loading conveyor belts (including the first loading conveyor belt 15 and the second loading conveyor belt) to smoothly transport the PCB board to the center positioning area of ​​the flipping mechanism 200. After the photoelectric switch detects the PCB board, the clamping cylinder drives the clamping plate to clamp the PCB board, and the flipping motor 3 performs a 180° flipping action (with closed-loop control). Then, the clamping cylinder releases the PCB board, and the unloading motor 4 drives the unloading mechanism 500 to send out the flipped PCB board. After the photoelectric switch detects that the PCB board has been sent out, the flipping motor 3 automatically resets to the 0° initial position.

[0053] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0054] As referred above Figures 1 to 4 The automatic PCB board loading, unloading, and flipping device according to the present invention is described by way of example. However, those skilled in the art should understand that various modifications can be made to the automatic PCB board loading, unloading, and flipping device proposed in the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A PCB automatic feeding and discharging turnover device, characterized in that, The device comprises a feeding mechanism, a turnover mechanism and a discharging mechanism, a feeding conveying assembly is arranged on the feeding mechanism, a clamping conveying assembly and a turnover assembly are arranged on the turnover mechanism, and a discharging conveying assembly is arranged on the discharging mechanism. The feeding conveying assembly is used for receiving a PCB to be turned over and conveying the PCB to the clamping conveying assembly, the turnover assembly is used for turning over the PCB, the clamping conveying assembly is used for clamping the PCB during the turning over of the PCB by the turnover assembly, and the clamping conveying assembly is also used for conveying the turned-over PCB to the discharging conveying assembly, and the discharging conveying assembly is used for discharging the PCB.

2. The automatic feeding and discharging turnover device for PCBs according to claim 1, wherein The feeding mechanism comprises a first feeding module and a second feeding module, and the feeding conveying assembly comprises a first feeding conveying belt and a second feeding conveying belt arranged synchronously, wherein the first feeding conveying belt is arranged on the first feeding module, and the second feeding conveying belt is arranged on the second feeding module. When the PCB is on the feeding mechanism, the PCB is positioned between the first feeding module and the second feeding module, one side of the PCB is supported on the first feeding conveying belt, and the other side of the PCB is supported on the second feeding conveying belt.

3. The automatic feeding and discharging turnover device for PCBs according to claim 2, wherein A first feeding elastic pressure wheel is arranged above the first feeding conveying belt, and a second feeding elastic pressure wheel is arranged above the second feeding conveying belt, wherein the first feeding elastic pressure wheel is used for pressing down one side of the PCB, and the second feeding elastic pressure wheel is used for pressing down the other side of the PCB.

4. The automatic feeding and discharging turnover device for PCBs according to claim 3, wherein The turnover mechanism comprises a first turnover module and a second turnover module, and the clamping conveying assembly comprises a first conveying belt, a second conveying belt, a third conveying belt and a fourth conveying belt, wherein the first conveying belt and the second conveying belt are arranged on the first turnover module, and the third conveying belt and the fourth conveying belt are arranged on the second turnover module. When the PCB is on the turnover mechanism, the PCB is positioned between the first turnover module and the second turnover module, one side of the PCB is positioned between the first conveying belt and the second conveying belt, and the other side of the PCB is positioned between the third conveying belt and the fourth conveying belt.

5. The automatic feeding and discharging turnover device for PCBs according to claim 4, wherein The clamping conveying assembly further comprises a first clamping member and a second clamping member. ​ The first clamping piece is used for clamping and fixing one side of the PCB between the first conveying belt and the second conveying belt during the turning of the turning assembly. 6.The PCB automatic feeding and unloading turning device of claim 5, characterized in that, The first clamping piece comprises a first clamping plate and a second clamping plate; wherein the first clamping plate is located on the side of the first conveying belt away from the PCB, and the second clamping plate is located on the side of the second conveying belt away from the PCB; during the turning of the turning assembly, the first clamping plate is used for pressing the first conveying belt, and the second clamping plate is used for pressing the second conveying belt, so as to clamp and fix one side of the PCB between the first conveying belt and the second conveying belt; The second clamping piece comprises a third clamping plate and a fourth clamping plate; wherein the third clamping plate is located on the side of the third conveying belt away from the PCB, and the fourth clamping plate is located on the side of the fourth conveying belt away from the PCB; during the turning of the turning assembly, the third clamping plate is used for pressing the third conveying belt, and the fourth clamping plate is used for pressing the fourth conveying belt, so as to clamp and fix the other side of the PCB between the third conveying belt and the fourth conveying belt. 7.The PCB automatic feeding and unloading turning device of claim 6, characterized in that, The turning assembly comprises a first turning motor and a second turning motor arranged synchronously; wherein, The first turning motor is used for driving the first turning module to turn, and the second turning motor is used for driving the second turning module to turn. 8.The PCB automatic feeding and unloading turning device of claim 7, characterized in that, The unloading mechanism comprises a first unloading module and a second unloading module, and the unloading conveying assembly comprises a first unloading conveying belt and a second unloading conveying belt arranged synchronously; wherein the first unloading conveying belt is arranged on the first unloading module, and the second unloading conveying belt is arranged on the second unloading module; and The PCB is arranged between the first unloading module and the second unloading module, one side of the PCB is supported on the first unloading conveying belt, and the other side of the PCB is supported on the second unloading conveying belt. 9.The PCB automatic feeding and unloading turning device of claim 8, characterized in that, A first unloading elastic pressure wheel is arranged above the first unloading conveying belt, and a second unloading elastic pressure wheel is arranged above the second unloading conveying belt; wherein the first unloading elastic pressure wheel is used for pressing one side of the PCB to be turned, and the second unloading elastic pressure wheel is used for pressing the other side of the PCB to be turned; and / or, A first downfeed tensioning wheel is arranged on the first downfeed conveying belt, and a second downfeed tensioning wheel is arranged on the second downfeed conveying belt. 10.The automatic PCB loading and unloading turnover device according to claim 8 or 9, characterized in that, The first loading module, the first turnover module and the first unloading module are located on the same side and fixedly connected; and Further comprising a spacing adjustment mechanism, which is used to drive the first loading module, the first turnover module and the first unloading module to move synchronously, so as to adjust the spacing between the first loading module and the second loading module, the spacing between the first turnover module and the second turnover module, and the spacing between the first unloading module and the second unloading module. The spacing adjustment mechanism comprises a lead screw and a nut seat screwed on the lead screw, and the nut seat is connected with one of the first loading module, the first turnover module and the first unloading module.

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