A turnover device for OK / NG sheet receiving machine

Abstract

This invention relates to the field of automation equipment technology, and in particular to a flipping device for an OK / NG board receiving machine. The device includes a body with control boxes symmetrically arranged on the back side. An OK frame is fixedly installed inside the control box on the left side, and an NG frame is fixedly installed inside the control box on the right side. A pushing and flipping mechanism is provided on the top of the body, and a reset mechanism is provided at the center of the pushing and flipping mechanism. This invention achieves board flipping through the pushing and flipping mechanism and the reset mechanism, and simultaneously achieves board flipping through the cooperation of gears, longitudinal straight plates, and longitudinal racks, thereby realizing the positioning and flipping of the board to be tested. Compared with traditional board receiving machines that can only perform pushing, receiving, and lateral movement, this invention can achieve automated board flipping, achieving an integrated operation effect of flipping, pushing, receiving, and lateral movement, effectively reducing working hours and greatly improving the efficiency of board conveying and testing.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and in particular to a flipping device for an OK / NG plate take-up machine. Background Technology

[0002] SMT production lines, also known as surface mount technology, are a new generation of electronic assembly technology developed from hybrid integrated circuit technology. At the end of the SMT production line, NG / OK board receivers are usually used to automatically distinguish and inspect the assembled PCB boards, separating unqualified products to facilitate subsequent assembly processes.

[0003] Most existing OK / NG board receiving machines can only move, push, and receive PCB boards during use, and cannot flip the boards. When it is necessary to inspect the back of the PCB board, the board to be tested needs to be manually removed from the original translation track, flipped, and then placed on the original running track. This process of inspecting the other side of the board seriously affects the inspection efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a flipping device for an OK / NG board receiving machine, which solves the technical problem of low detection efficiency caused by the inability of the board receiving machine to flip the board to be tested.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a flipping device for an OK / NG board take-up machine, comprising a body, control boxes symmetrically arranged on the back side of the body, an OK frame fixedly installed on the inner side of the control box on the left side, an NG frame fixedly installed on the inner side of the control box on the right side, a pushing flipping mechanism provided on the top of the body, and a reset mechanism provided at the center of the pushing flipping mechanism;

[0006] The pushing and flipping mechanism includes right-angle fixing frames fixedly connected to the left and right sides of the top of the machine body. A first motor is fixedly connected to the center of the left side of the right-angle fixing frame. A gear is fixedly installed at the output end of the first motor. A longitudinal straight plate is provided inside the gear. A longitudinal rack is fixedly connected inside the longitudinal straight plate. The gear and the longitudinal rack mesh and are properly matched.

[0007] The bottom of the longitudinal straight plate has an opening for movement. A fixing rod is provided on the inner side of the longitudinal straight plate. The fixing rod is located at the upper end of the opening for movement. A connecting rod is rotatably installed on the inner side of the fixing rod. A clamping plate is rotatably installed on the inner side of the connecting rod. The center of the clamping plate is rotatably installed on the inner side of the longitudinal straight plate.

[0008] The inner side of each longitudinal straight plate is provided with a feeding frame. A second motor is symmetrically provided on both sides of the feeding frame. The output shaft of the second motor passes through the feeding frame and is fixedly connected to a conveyor wheel at its end. A conveyor belt for feeding is sleeved on the outer side of the conveyor wheel. The other end of the connecting rod is rotatably mounted on the side wall of the feeding frame.

[0009] Preferably, the reset mechanism includes a central top plate located at the center of the feeding frame, a third motor fixedly connected to the bottom of the central top plate, the output shaft of the third motor passing through the central top plate and a pulley fixedly connected to its end, a reset belt sleeved on the outer side of the pulley, and a bottom edge clamping mechanism provided on the side wall of the reset belt.

[0010] The bottom edge clamping mechanism includes a fixing plate fixedly connected to the side wall of the reset belt. The fixing plate is in the shape of a right angle Z. A limiting rail is provided on the outer side of the central top plate. The bottom wall of the fixing plate passes through the interior of the limiting rail. A reset frame is fixedly connected to the top of the central top plate. A translation guide rail is provided inside the reset frame. A reset calibration mechanism is provided inside the reset frame.

[0011] Preferably, the bottom edge clamping mechanism further includes an inclined plate rotatably mounted on the upper end of the fixed plate, the end of the inclined plate being fixedly connected to a limit block, and a connecting arm being provided on the side of the fixed plate away from the reset belt;

[0012] A fixed shaft is sleeved on the inner side of the connecting arm, and the inner end of the fixed shaft is fixedly connected to the fixed plate. A torsion spring is sleeved on the outer side of the connecting arm, and one rotating end of the torsion spring is tightly attached to the connecting arm.

[0013] Preferably, the reset and correction mechanism includes a magnetic adsorption seat fixedly connected to the inner wall of the reset frame, a conductive seat fixedly installed at the inner center of the magnetic adsorption seat, and a magnetic plate fixedly installed on the side of the fixing plate near the conductive seat.

[0014] A conductive contact is fixedly connected to the center of the magnetic plate. The magnetic plate and the magnetic adsorption base are located on the same horizontal line, and the conductive contact and the conductive base are electrically connected.

[0015] Preferably, the inner side of the clamping plate is provided with two sets of positioning plates.

[0016] By means of the above technical solution, the present invention provides a flipping device for an OK / NG board take-up machine, which has at least the following beneficial effects:

[0017] 1. This invention achieves the flipping of the circuit board through a push-flipping mechanism and a reset mechanism. At the same time, the flipping of the circuit board is achieved through the cooperation between gears, longitudinal straight plates and longitudinal racks, thereby realizing the positioning and flipping of the circuit board to be tested. Compared with traditional board receiving machines that can only perform push, receive and horizontal movement operations, it can realize the automated flipping of the circuit board, achieving the integrated operation effect of flipping, pushing, receiving and horizontal movement, effectively reducing working time and greatly improving the efficiency of circuit board transmission and testing.

[0018] 2. This invention achieves stable clamping of the board during the flipping process through a reset mechanism, and at the same time, achieves stable clamping of the bottom wall of the board during the flipping process through the cooperation of the limiting block, connecting arm and torsion spring, thus achieving the effect of preventing the board from falling during the entire flipping process.

[0019] 3. When the plate is transported laterally along the pulley inside the plate feeding frame, the bottom wall of the plate automatically engages and matches with the limiting block during the plate's 90° flipping process, thereby achieving automatic clamping of the plate's bottom wall. Subsequently, as the reset mechanism flips the plate 90° and the plate continues to be transported laterally, stable clamping is achieved throughout the entire plate flipping process, ensuring clamping stability.

[0020] 4. This invention achieves the flipping drive of the card plate after it has been flipped 90° by the cooperation of a third motor, pulley and reset belt. At the same time, the fixed plate drives the limit block to make the card plate slide laterally after the 90° flip. As the limit block continues to slide, the card plate is released after the flip is completed. The invention has a high degree of automation and achieves the effect of automatic clamping and release throughout the flipping process.

[0021] 5. This invention achieves adsorption and adaptation when the fixed plate is reset to the initial position through the cooperation between the magnetic adsorption seat and the magnetic plate inside the reset mechanism. At the same time, the cooperation between the conductive seat and the conductive contact provides timely signal feedback when the reset is completed, ensuring zeroing correction before the next card is flipped, avoiding card delivery deviation caused by inaccurate reset, and further improving the stability of the card delivery process.

[0022] 6. The present invention achieves automatic snap-fit ​​adaptation to the bottom wall of the flip plate by tilting the inclined plate and limiting block, and achieves automatic adaptive filling of the transversely conveyed plate by working with the torsion spring, thereby enhancing the adaptability when multiple plates are continuously and automatically conveyed. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the state structure of the push-flipping mechanism of the present invention when transporting the board;

[0026] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the push-and-flip mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the state structure of the board during its initial flip-over.

[0029] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the clamping plate and positioning plate of the present invention.

[0031] In the diagram: 1. Machine body; 2. Control box; 3. OK frame; 4. NG frame; 5. Pushing and flipping mechanism; 50. Right-angle fixing frame; 51. First motor; 52. Gear; 53. Longitudinal straight plate; 54. Longitudinal rack; 55. Movable port; 56. Fixing rod; 57. Connecting rod; 58. Clamping plate; 59. Positioning plate; 6. Second motor; 60. Conveying wheel; 61. Conveyor belt; 7. Plate feeding frame; 8. Reset mechanism; 80. Center top plate; 81. Third motor; 82. Pulley; 83. Reset belt; 84. Fixing plate; 85. Limiting rail; 86. Reset frame; 861. Magnetic adsorption seat; 862. Conductive seat; 87. Translation guide rail; 88. Inclined plate; 89. Limiting block; 810. Connecting arm; 811. Fixed shaft; 812. Torsion spring; 813. Magnetic plate; 814. Conductive contact piece. Detailed Implementation

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

[0033] Example 1

[0034] Please refer to Figures 1-3A flipping device for an OK / NG board receiving machine includes a body 1. Control boxes 2 are symmetrically arranged on the back side of the body 1. An OK frame 3 is fixedly installed inside the left control box 2, and an NG frame 4 is fixedly installed inside the right control box 2. After the boards located at the workstation are inspected, the products that meet the requirements are flipped and inspected again. If they meet the requirements, they are pushed horizontally into the inside of the OK frame 3. Products that do not meet the requirements do not need to be flipped and are directly pushed into the inside of the NG frame 4. A push-flipping mechanism 5 is provided on the top of the inspection body 1. A reset mechanism 8 is provided at the center of the push-flipping mechanism 5. The boards that pass the inspection are simultaneously inspected on the back side of the boards through the push-flipping mechanism 5, so as to determine whether the boards meet the quality inspection requirements based on the inspection results.

[0035] The push-and-flip mechanism 5 includes right-angle brackets 50 fixedly connected to the left and right sides of the top of the body 1. A first motor 51 is fixedly connected to the center of the left side of the right-angle bracket 50. A gear 52 is fixedly installed at the output end of the first motor 51. A longitudinal straight plate 53 is provided inside the gear 52. A longitudinal rack 54 is fixedly connected inside the longitudinal straight plate 53. The gear 52 and the longitudinal rack 54 mesh and match. When the push-and-flip mechanism 5 drives the plate to flip, the first motor 51 is turned on, driving the gear 52 to rotate synchronously. At this time, the longitudinal rack 54 located inside the longitudinal straight plate 53 moves upward synchronously, thereby driving the longitudinal straight plate 53 to move upward. The bottom of the longitudinal straight plate 53 has an opening 55. The inner side of the longitudinal straight plate 53 has a fixing rod 56, which is located at the upper end of the opening 55. The inner side of the fixing rod 56 is rotatably mounted with a connecting rod 57, and the inner side of the connecting rod 57 is rotatably mounted with a clamping plate 58. The center of the clamping plate 58 is rotatably mounted on the inner side of the longitudinal straight plate 53. As the longitudinal straight plate 53 continues to move upward, the connecting rod 57 rotates synchronously, thereby causing the clamping plate 58 to drive the plate to flip. When the plate flips at a rotation angle of 0-90°, the gear 52 meshes with the center of the opening 55. The subsequent flipping drive is driven by the reset mechanism 8.

[0036] As a preferred technical solution in this embodiment, a feeding frame 7 is provided on the inner side of the longitudinal straight plate 53. A second motor 6 is symmetrically provided on both sides of the feeding frame 7. The output shaft of the second motor 6 passes through the feeding frame 7 and is fixedly connected to a conveyor wheel 60 at its end. A conveyor belt 61 for feeding is sleeved on the outer side of the conveyor wheel 60, and the other end is rotatably installed on the side wall of the feeding frame 7. The plate is conveyed laterally on the surface of the conveyor belt 61. As the conveyor belt 61 continues to rotate, the plate is conveyed laterally along the conveyor belt 61 and clamped inside the clamping plate 58. As the first motor 51 in the pushing and flipping mechanism 5 continues to rotate, the connecting rod 57 is rotated, thereby causing the clamping plate 58 to drive the plate to flip.

[0037] Example 2

[0038] Please refer to Figures 3-4This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0039] The reset mechanism 8 includes a central top plate 80 located at the center of the feeding frame 7. A third motor 81 is fixedly connected to the bottom of the central top plate 80. The output shaft of the third motor 81 passes through the central top plate 80 and a pulley 82 is fixedly connected to its end. A reset belt 83 is sleeved on the outer side of the pulley 82. The side wall of the reset belt 83 is provided with a bottom edge clamping mechanism. When the pushing and flipping mechanism 5 drives the plate to flip to 90°, the fixed plate 84 moves to the midpoint of the central top plate 80. Since the clamping plate 58 and the plate are in a vertical state at this time, the continuous rotation of the first motor 51 can no longer achieve the continuous flipping of the clamping plate 58. The subsequent flipping is driven by the third motor 81 of the reset mechanism 8 to drive the pulley 82 to rotate synchronously. At this time, the fixed connection The fixed plate 84 on the side wall of the reset belt 83 drives the clamped board to continue to rotate. Subsequently, as the reset belt 83 continues to rotate, the board continues to rotate laterally, ensuring that the board continues to rotate after 90°. The board is rotated by the push-rotation mechanism 5 and the reset mechanism 8. At the same time, the board is rotated by the cooperation between the gear 52, the longitudinal straight plate 53 and the longitudinal rack 54, thereby achieving the positioning and rotation of the board to be tested. Compared with the traditional board receiving machine, which can only perform push, receive and move horizontally, it can realize the automatic rotation of the board, achieving the integrated operation effect of flipping, pushing, receiving and moving horizontally, effectively reducing working time and greatly improving the efficiency of board transmission and testing.

[0040] The bottom clamping mechanism includes a fixing plate 84 fixedly connected to the side wall of the reset belt 83. The fixing plate 84 is in a right-angled Z-shape. A limiting rail 85 is provided on the outer side of the central top plate 80. The bottom wall of the fixing plate 84 passes through the interior of the limiting rail 85. A reset frame 86 is fixedly connected to the top of the central top plate 80. A translation guide rail 87 is provided inside the reset frame 86. When the rotation of the third motor 81 drives the reset belt 83 to rotate, the fixing plate 84 slides along the translation guide rail 87, thereby ensuring that the fixing plate 84 is always located on the transverse running track. A reset calibration mechanism is provided inside the reset frame 86. When the plate is clamped... After completing a 180° flip, the third motor 81 then resets the base plate clamping mechanism, ensuring the reset calibration of the circuit board by the reset correction mechanism. The magnetic adsorption seat 861 and the magnetic plate 813 inside the reset mechanism 8 cooperate to achieve adsorption adaptation when the fixed plate 84 is reset to the initial position. At the same time, the cooperation between the conductive seat 862 and the conductive contact 814 provides timely signal feedback when the reset is completed, ensuring zeroing correction before the next circuit board flips, avoiding circuit board delivery deviation caused by inaccurate reset, and further improving the stability of the circuit board delivery process.

[0041] Example 3

[0042] Please refer to Figures 5-6 This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0043] The bottom edge clamping mechanism also includes an inclined plate 88 rotatably mounted on the upper end of the fixed plate 84. Through the inclined setting of the inclined plate 88 and the limiting block 89, the automatic clamping and adaptation of the bottom wall of the flipped plate is realized. With the help of the torsion spring 812, the automatic adaptation and filling of the transversely conveyed plate is realized, which enhances the adaptability when multiple plates are continuously and automatically conveyed. The end of the inclined plate 88 is fixedly connected to the limiting block 89. During the process of the push flipping mechanism 5 driving the plate to flip from 0 to 90°, the front side wall of the plate slides laterally. During the transverse sliding, the side wall and the inclined limiting block 89 are clamped together, thereby realizing the clamping and limiting of the front side wall of the plate. The reset mechanism 8 realizes the stable clamping of the plate during the flipping process. At the same time, the cooperation between the limiting block 89, the connecting arm 810, and the torsion spring 812 realizes the stable clamping of the bottom wall of the plate during the flipping process, achieving the effect of preventing the plate from falling during the entire flipping process. The fixed plate 84 is provided with a connecting arm 810 on the side away from the reset belt 83.

[0044] A fixed shaft 811 is sleeved on the inner side of the connecting arm 810. The inner end of the fixed shaft 811 is fixedly connected to the fixed plate 84. A torsion spring 812 is sleeved on the outer side of the connecting arm 810. One rotating end of the torsion spring 812 is in close contact with the connecting arm 810. When the reset mechanism 8 drives the plate to rotate 90°, the fixed plate 84 continues to move along the midpoint of the central top plate 80. After that, the connecting arm 810 rotates along the fixed shaft 811, thereby realizing the synchronous rotation of the connecting arm 810 and the limit block 89. With the reset belt 83... The continuous rotation of the limit block 89 causes the bottom wall of the card held by the limit block 89 to be flipped 90° by the cooperation of the third motor 81, pulley 82 and reset belt 83. At the same time, the fixed plate 84 drives the limit block 89 to make the card slide laterally after the card is flipped 90°. After that, the bottom wall of the card moves along the surface of the central top plate 80. As the limit block 89 continues to slide, the card is released after the flip is completed. The degree of automation is high and the effect of automatic clamping and release is achieved throughout the flip process.

[0045] Example 3

[0046] Please refer to Figures 5-7This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0047] The reset and correction mechanism includes a magnetic adsorption seat 861 fixedly connected to the inner wall of the reset frame 86. A conductive seat 862 is fixedly installed at the center of the inner side of the magnetic adsorption seat 861. A magnetic plate 813 is fixedly installed on the side of the fixing plate 84 near the conductive seat 862. After the plate is flipped, the third motor 81 drives the reset belt 83 to transport the fixing plate 84 in the reverse direction into the interior of the reset frame 86. As the fixing plate 84 moves closer to the inner wall of the reset frame 86, the magnetic plate 813 and the magnetic adsorption seat 861 attract each other. At the moment of attraction, the conductive contacts 814 and the conductive seat 862 inside them come into contact and are energized. The electrical signal indicating the completion of the reset is transmitted to the host, thus ensuring the zeroing correction before each reversal and avoiding the idle rotation of the reset belt 83 driven by the third motor 81. The magnetic adsorption seat 861 and the magnetic plate 813 inside the reset mechanism 8 are matched to achieve adsorption and adaptation when the fixed plate 84 is reset to the initial position. At the same time, the matching between the conductive seat 862 and the conductive contact 814 provides timely signal feedback when the reset is completed, ensuring the zeroing correction before the next card is flipped, avoiding the deviation of the card transport due to inaccurate reset, and further improving the stability of the card transport process.

[0048] A conductive contact 814 is fixedly connected to the center of the magnetic plate 813. The magnetic plate 813 and the magnetic adsorption seat 861 are located on the same horizontal line. The conductive contact 814 and the conductive seat 862 are electrically connected to ensure that when the fixed plate 84 slides along the inside of the reset frame 86, the magnetic adsorption seat 861 and the magnetic plate 813 attract each other and transmit electrical signals.

[0049] As a preferred technical solution in this embodiment, the inner side of the clamping plate 58 is provided with two sets of positioning plates 59. The positioning plates 59 are used to clamp and limit the side wall of the plate, thus ensuring the horizontal transport of the positioning plates 59.

[0050] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Since the above embodiments are substantially similar to the method embodiments, their descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flipping device for an OK / NG board take-up machine, comprising a body (1), characterized in that: The back side of the body (1) is symmetrically provided with control boxes (2). An OK frame (3) is fixedly installed on the inner side of the control box (2) on the left side, and an NG frame (4) is fixedly installed on the inner side of the control box (2) on the right side. A push-flipping mechanism (5) is provided on the top of the body (1), and a reset mechanism (8) is provided at the center of the push-flipping mechanism (5). The pushing and flipping mechanism (5) includes right-angle fixing frames (50) fixedly connected to the left and right sides of the top of the body (1). A first motor (51) is fixedly connected to the center of the left side of the right-angle fixing frame (50). A gear (52) is fixedly installed at the output end of the first motor (51). A longitudinal straight plate (53) is provided on the inner side of the gear (52). A longitudinal rack (54) is fixedly connected inside the longitudinal straight plate (53). The gear (52) and the longitudinal rack (54) mesh and match. The reset mechanism (8) includes a central top plate (80) located at the center of the feeding frame (7). A third motor (81) is fixedly connected to the bottom of the central top plate (80). The output shaft of the third motor (81) passes through the central top plate (80) and is fixedly connected to a pulley (82) at its end. A reset belt (83) is sleeved on the outside of the pulley (82). The side wall of the reset belt (83) is provided with a bottom edge clamping mechanism. The bottom edge clamping mechanism includes a fixing plate (84) fixedly connected to the side wall of the reset belt (83). The fixing plate (84) is in the shape of a right angle Z. A limiting rail (85) is provided on the outer side of the central top plate (80). The bottom wall of the fixing plate (84) passes through the interior of the limiting rail (85). A reset frame (86) is fixedly connected to the top of the central top plate (80). A translation guide rail (87) is provided inside the reset frame (86). A reset calibration mechanism is provided inside the reset frame (86). The reset calibration mechanism includes a magnetic adsorption seat (861) fixedly connected to the inner wall of the reset frame (86), a conductive seat (862) fixedly installed on the inner center of the magnetic adsorption seat (861), and a magnetic plate (813) fixedly installed on the side of the fixing plate (84) near the conductive seat (862).

2. The flipping device for an OK / NG take-up machine according to claim 1, characterized in that: The bottom of the longitudinal straight plate (53) is provided with an opening (55). A fixing rod (56) is provided on the inner side of the longitudinal straight plate (53). The fixing rod (56) is located at the upper end of the opening (55). A connecting rod (57) is rotatably installed on the inner side of the fixing rod (56). A clamping plate (58) is rotatably installed on the inner side of the connecting rod (57). The center of the clamping plate (58) is rotatably installed on the inner side of the longitudinal straight plate (53).

3. The flipping device for an OK / NG take-up machine according to claim 2, characterized in that: The inner side of the longitudinal straight plate (53) is provided with a feeding frame (7). The two sides of the feeding frame (7) are symmetrically provided with a second motor (6). The output shaft of the second motor (6) passes through the feeding frame (7) and is fixedly connected to a conveyor wheel (60) at its end. The outer side of the conveyor wheel (60) is fitted with a conveyor belt (61) for feeding. The other end of the connecting rod (57) is rotatably installed on the side wall of the feeding frame (7).

4. The flipping device for an OK / NG take-up machine according to claim 1, characterized in that: The bottom edge clamping mechanism also includes an inclined plate (88) rotatably mounted on the upper end of the fixed plate (84), and a limit block (89) is fixedly connected to the end of the inclined plate (88). A connecting arm (810) is provided on the side of the fixed plate (84) away from the reset belt (83).

5. The flipping device for an OK / NG take-up machine according to claim 4, characterized in that: A fixed shaft (811) is sleeved on the inner side of the connecting arm (810), and the inner end of the fixed shaft (811) is fixedly connected to the fixed plate (84). A torsion spring (812) is sleeved on the outer side of the connecting arm (810), and one rotating end of the torsion spring (812) is tightly attached to the connecting arm (810).

6. The flipping device for an OK / NG take-up machine according to claim 1, characterized in that: A conductive contact (814) is fixedly connected to the center of the magnetic plate (813). The magnetic plate (813) and the magnetic adsorption seat (861) are located on the same horizontal line. The conductive contact (814) and the conductive seat (862) are electrically connected.

7. The flipping device for an OK / NG take-up machine according to claim 2, characterized in that: The inner side of the clamp (58) is provided with two sets of positioning plates (59).

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