Die-cutting Detection Production Line for Flexible Printed Circuit Board

Abstract

The present invention relates to the technical field of automated processing equipment, and in particular to a punching and detection production line for flexible printed circuit boards, which includes a frame and a glue pasting unit, a pre-pressing unit, a punching unit, and a detection unit arranged on the frame according to the production process; by using a reflux mechanism, a conveyor line, a feeding mechanism, and a discharging mechanism to cooperate with the glue pasting unit to form a cycle, enabling the fixture to automatically reflux from the discharging mechanism to the feeding mechanism, realizing circular use within a certain glue pasting unit, eliminating the need to purchase more fixtures, improving the utilization rate of fixtures, and reducing the manufacturing cost. Through the coordinated use of an interception mechanism, a buffer mechanism, and a manipulator, the impact caused by abnormal failures of the punching unit is reduced, ensuring the production efficiency. Through the flow operation of functional detection, appearance detection, and tray packaging, a continuous production mode is formed, achieving a reduction in labor, ensuring product quality, and improving efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of automated processing equipment, and particularly to a punching and detecting production line for flexible printed circuit boards. Background Art

[0002] Flexible printed circuit boards, also known as "flexible boards", are printed circuits made of flexible insulating substrates. Flexible circuits provide excellent electrical performance, can meet the design requirements of smaller and higher-density installations, and also help to reduce the assembly process and enhance reliability. Flexible printed circuit boards are the only solution to meet the miniaturization and mobility requirements of electronic products. They can be freely bent, wound, and folded, can withstand millions of dynamic bends without damaging the wires, can be arranged arbitrarily according to the spatial layout requirements, and can move and stretch arbitrarily in three-dimensional space, thus achieving the integration of component assembly and wire connection; flexible printed circuit boards can greatly reduce the volume and weight of electronic products, and are suitable for the development needs of electronic products towards high density, miniaturization, and high reliability.

[0003] The existing flexible printed circuit boards on the market are produced and processed separately by different processing equipment according to different processing procedures. After each processing procedure is completed, blanking and collection are carried out, and then manually transferred to the next equipment for the next processing procedure, which seriously affects the production efficiency of flexibility. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fully automatic punching and detecting production line that integrates the equipment in each link of the flexible printed circuit board production process to form a complete production line, and adopts a new process design and mechanism layout to realize the mid-way recycling of fixtures and the buffer processing of workpieces, effectively reducing the usage amount of fixtures, avoiding the efficiency problem caused by the full-line shutdown of the production line when a certain station fails, and forming a continuous production mode through the flow operation of functional detection, appearance detection, and tray packaging, so as to reduce labor, ensure quality, and improve efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: a punching and detecting production line for flexible printed circuit boards, including a frame and a glue pasting unit, a pre-pressing unit, a punching unit, and a detecting unit arranged on the frame according to the production process; the glue pasting unit is provided with a feeding mechanism, a glue pasting device, a discharging mechanism, and a jig recycling system for recycling the jigs of the discharging mechanism to the feeding mechanism; between the pre-pressing unit and the punching unit, there are provided an intercepting mechanism for intercepting workpieces, a buffer mechanism for storing workpieces, and a manipulator for moving the workpieces intercepted by the intercepting mechanism to the buffer mechanism. The intercepting mechanism includes an intercepting seat and a first driving component for driving the intercepting seat to intercept or release. When an abnormality occurs in the punching unit, the first driving component drives the intercepting seat to intercept the workpieces; the buffer mechanism includes a frame, a storage rack arranged on the frame, at least two storage seats arranged on the storage rack, at least one storage cavity opened in the storage seat for storing workpieces, a second driving component for driving the storage rack to move back and forth in the vertical direction, and a shifting device for moving the storage seat into or out of the storage rack.

[0006] Preferably, it further includes a reflux mechanism and two sets of conveying lines respectively connected to the output port and the input port of the reflux mechanism. One end of one set of conveying lines is aligned and connected to the input port of the feeding mechanism, and the other end of the other set of conveying lines is aligned and connected to the output port of the discharging mechanism. The reflux mechanism is provided with a first transporting device and a first driving device for driving the first transporting device to reciprocate between the output port and the input port of the reflux mechanism; the first transporting device is provided with two first support plates, and conveyor belts are installed on two opposite side surfaces of the two first support plates, and a second driving device for driving the conveyor belts to rotate through rollers is provided. The first transporting device is provided with a first lead screw passing through the two first support plates and a motor or a hand crank for driving the first lead screw to rotate to make the two first support plates approach or move away from each other.

[0007] Preferably, the reflux mechanism is provided with a first slide rail, and the first driving device is fixedly installed on one side surface of the first transporting device and drives the first transporting device to move along the first slide rail by driving the rollers connected to the first slide rail.

[0008] Preferably, the frame is provided with a second slide rail, a second transporting device connected to the second slide rail, and a third driving device for driving the second transporting device to reciprocate along the second slide rail between the output port and the input port of the discharging mechanism through a conveyor belt. The frame is provided with a third transporting device. The upper side surface of the third transporting device and the upper side surface of the second transporting device drive a manipulator to reciprocate through a linear module to complete the picking and placing of workpieces. The discharging mechanism is provided with a second output port, and one end of the second transporting device is aligned and connected to the second output port; the frame is provided with a picking claw driven by a linear module to approach or move away from the upper side surface of the second transporting device.

[0009] Preferably, the detection unit includes a power-on test device and a vision detection device installed on the frame. The frame is equipped with a conveyor belt driven by a motor to rotate, a suction plate driven by a motor to flip, and a pick-up manipulator driven by a linear module to reciprocate on the upper side of the conveyor belt and the upper side of the suction plate. The frame is provided with a mounting plate on one side of the conveyor belt. The motor driving the flipping of the suction plate is fixedly installed on the back of the mounting plate, and the motor is connected with a rotating rod extending through the mounting plate. The lower side of one side of the suction plate is fixedly connected to the side of the rotating rod in a threaded manner. The suction plate is provided with a vent hole and a plurality of suction holes communicating with the vent hole on the upper side of the suction plate.

[0010] Preferably, the storage rack includes a first side plate and a second side plate arranged at intervals. The first side plate is provided with a first fixing seat for fixing one side of the storage seat, and the second side plate is provided with a second fixing seat for fixing the other side of the storage seat. The number of the first fixing seats and the second fixing seats corresponds to the number of the storage seats.

[0011] Preferably, both the first side plate and the second side plate are provided with connecting members. The second driving assembly includes a movable seat fixedly connected to the connecting member, a first guide post slidably connected to the movable seat, a threaded sleeve installed on the movable seat, a second lead screw cooperating with the threaded sleeve, and a driving motor for driving the rotation of the second lead screw. One end of the guide post abuts against the top of the frame, and the other end of the first guide post is fixedly installed at the bottom of the frame through a third fixing seat.

[0012] Preferably, the shifting device includes a removing assembly for removing the storage seat from the storage rack. The removing assembly includes a third slide rail arranged on the frame, a third slide seat slidably connected to the third slide rail, a fourth driving assembly for driving the third slide seat to move back and forth on the third slide rail, a mounting seat arranged on the third slide seat, a stop member arranged on the mounting seat for blocking the workpiece, and a fifth driving assembly for driving the mounting seat to move back and forth in the vertical direction.

[0013] Preferably, a bidirectional conveying mechanism capable of running forward and backward is installed between the stamping unit and the buffer mechanism. The bidirectional conveying mechanism includes a mounting base plate arranged on the frame and a fourth driving device for driving the mounting base plate to move back and forth in the vertical direction. The mounting base plate is provided with at least two groups of conveying components. Each group of conveying components includes a conveying line, a bearing seat arranged on the conveying line for carrying the workpiece, and a fifth driving device for driving the conveying line to run.

[0014] Preferably, the number of the conveying components is two groups, and the two groups of conveying components are arranged in a vertical array on the mounting base plate; a fixing plate is installed in the middle of the frame, and a second guide post is inserted through the fixing plate. One end of the second guide post abuts against the mounting base plate, and the other end of the second guide post is installed with a bottom plate.

[0015] The beneficial effects of the present invention are as follows: The present invention provides a punching and detecting production line for flexible printed circuit boards. During the production and processing of flexible printed circuit boards, it is necessary to first stick adhesive paper on the circuit board and perform pre-pressing treatment. Subsequently, the flexible printed circuit board with the adhesive paper stuck is subjected to punching treatment, and then power-on detection and visual inspection of the appearance are carried out in sequence. Finally, the board is placed on a tray for packaging. By using the reflux mechanism, the conveyor line, the feeding mechanism, and the discharging mechanism in cooperation to form a cycle, the jig automatically returns from the discharging mechanism to the feeding mechanism, achieving cyclic use within a certain adhesive-sticking unit, eliminating the need to purchase more jigs, improving the utilization rate of jigs, and reducing the manufacturing cost. Through the coordinated use of the interception mechanism, the buffer mechanism, and the manipulator, the impact caused by abnormal failures in the punching unit is reduced, ensuring the production efficiency. Through the flow operation of functional detection, appearance detection, and tray packaging, a continuous production mode is formed, achieving a reduction in manpower, ensuring quality, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a perspective structural view of the punching and detecting production line for flexible printed circuit boards of the present invention.

[0017] Figure 2 FIG. is a front structural view of the punching and detecting production line for flexible printed circuit boards of the present invention.

[0018] Figure 3 FIG. is a top structural view of the punching and detecting production line for flexible printed circuit boards of the present invention.

[0019] Figure 4 FIG. is a perspective structural view of the adhesive-sticking unit in the present invention.

[0020] Figure 5 FIG. is a top structural view of the adhesive-sticking unit in the present invention.

[0021] Figure 6 FIG. is a perspective structural view of the reflux mechanism in the present invention.

[0022] Figure 7 FIG. is a top structural view of the buffer mechanism in the present invention.

[0023] Figure 8 FIG. is a perspective structural view of the interception mechanism in the present invention.

[0024] Figure 9 FIG. is a perspective structural view of the buffer mechanism from another angle in the present invention.

[0025] Figure 10 FIG. is a perspective structural view of the reflux mechanism in the present invention.

[0026] Figure 11 FIG. is a perspective structural view of the reflux mechanism with a part of the housing hidden in the present invention.

[0027] Figure 12 This is a partially enlarged three-dimensional structural schematic diagram of the reflux mechanism in the present invention.

[0028] Figure 13 This is a three-dimensional structural schematic diagram of the vision detection device in the present invention.

[0029] Figure 14 This is a front view structural schematic diagram of the manipulator and the vision detection device in the present invention.

[0030] Figure 15 This is a three-dimensional structural schematic diagram of the adsorption plate in the present invention.

[0031] Figure 16 This is a three-dimensional structural schematic diagram of another perspective of the buffer mechanism in the present invention.

[0032] Figure 17 This is a three-dimensional structural schematic diagram of the removal component in the present invention.

[0033] Figure 18 This is a three-dimensional structural schematic diagram of the bidirectional transportation mechanism in the present invention. Detailed implementation manners

[0034] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with embodiments. The content mentioned in the implementation manners does not limit the present invention.

[0035] As Figures 1 to 18 shown, a punching and detecting production line for flexible printed circuit boards includes a frame 1 and a glue pasting unit 2, a pre-pressing unit 3, a punching unit 4, and a detecting unit 5 arranged on the frame 1 according to the production process; the glue pasting unit 2 is provided with a loading mechanism 21, a glue pasting device 22, a blanking mechanism 23, and a jig recycling system for recycling the jigs of the blanking mechanism 23 to the loading mechanism 21; an intercepting mechanism 6 for intercepting workpieces, a buffer mechanism 7 for storing workpieces, and a manipulator for moving the workpieces intercepted by the intercepting mechanism 6 to the buffer mechanism 7 are arranged between the pre-pressing unit 3 and the punching unit 4. The intercepting mechanism 6 includes an intercepting seat 61 and a first driving component 62 for driving the intercepting seat 61 to intercept or release. When an abnormality occurs in the punching unit 4, the first driving component 62 drives the intercepting seat 61 to intercept the workpieces; the buffer mechanism 7 includes a frame 1, a storage rack arranged on the frame 1, at least two storage seats 71 arranged on the storage rack, at least one storage cavity 76 opened in the storage seat 71 for storing workpieces, a second driving component for driving the storage rack to move back and forth in the vertical direction, and a displacement device for moving the storage seat 71 into or out of the storage rack.

[0036] See Figures 1 to 3, during the production and processing of flexible printed circuit boards, it is necessary to first stick adhesive paper on the circuit board and perform pre-pressing treatment. Subsequently, the flexible printed circuit board with the adhesive paper pasted is subjected to die-cutting treatment, and then power-on detection and visual inspection of the appearance are carried out in sequence. Finally, board placement and packaging treatment are carried out.

[0037] See Figures 4 to 6 , further comprising a reflux mechanism 8 and two sets of conveyor lines 10 respectively connected to the output port and the input port of the reflux mechanism 8 in a butting manner. One end of one set of conveyor lines 10 is aligned and connected to the input port of the loading mechanism 21, and the other end of the other set of conveyor lines 10 is aligned and connected to the output port of the unloading mechanism 23. The reflux mechanism 8 is provided with a first conveying device 81 and a first driving device for driving the first conveying device 81 to reciprocate between the output port and the input port of the reflux mechanism 8.

[0038] In actual operation, the jig is placed with a workpiece at the loading mechanism 21, and then the jig carries the workpiece into the pasting unit 2 for processing. After completion, it enters the unloading mechanism 23. At the unloading mechanism 23, a manipulator takes the workpiece on the jig and enters the pre-pressing unit 3. At this time, the jig that has completed the task is output from the unloading mechanism 23 and enters the first conveying device 81 through the conveyor line 10 from the input port of the reflux mechanism 8. Then, the first conveying device 81 moves the jig to the output port of the reflux mechanism 8 for output, and enters the loading mechanism 21 again through the conveyor line 10 to form a cycle. By using the reflux mechanism 8 and the conveyor line 10 in cooperation with the loading mechanism 21 and the unloading mechanism 23 to form a cycle, the jig automatically returns from the unloading mechanism 23 to the loading mechanism 21, realizing cyclic use within a certain pasting unit 2, eliminating the need to purchase more jigs, improving the utilization rate of jigs, and reducing the manufacturing cost.

[0039] The manipulator is a conventional material-taking and shifting manipulator, which is a conventional technical means for those skilled in the art, so it will not be elaborated here.

[0040] When the stamping unit 4 malfunctions, the interception mechanism 6 is activated. The interception seat 61 is driven by the first driving component 62 to intercept the workpiece, and the workpiece of the preloading unit 3 cannot flow into the stamping unit 4. At this time, the intercepted workpiece is moved to the buffer mechanism 7 by the manipulator for temporary storage to avoid workpiece stacking. When the stamping unit 4 can operate normally, the interception seat 61 is driven by the first driving component 62 to release the workpiece. If the processing speed of the stamping unit 4 is faster than that of the preloading unit 3, at this time, the workpiece temporarily stored on the buffer can be intermittently moved out by the manipulator according to the processing speed of the preloading unit 3 for supplementation. If the processing speed of the stamping unit 4 is equal to or less than that of the preloading unit 3, at this time, the preloading unit 3 is suspended, and the workpiece temporarily stored on the buffer mechanism 7 is first processed by the manipulator, and then the preloading unit 3 is started after processing. In this way, through the coordinated use of the interception mechanism 6, the buffer mechanism 7 and the manipulator, the impact caused by the abnormal failure of the stamping unit 4 is reduced, and a continuous production mode is formed through the flow operation of function detection, appearance detection and tray packaging, achieving the reduction of manpower, ensuring quality and improving efficiency.

[0041] See Figures 4 to 6 , in this embodiment, the first conveying device 81 is provided with two first support plates 82. Conveyor belts and a second driving device for driving the conveyor belts to rotate through rollers are installed on the opposite sides of the two first support plates 82. The first conveying device 81 is provided with a first lead screw passing through the two first support plates 82 and a motor or a hand crank for driving the first lead screw to rotate to make the two first support plates 82 approach or separate from each other. With the conveyor belt design, when the first conveying device 81 is aligned with the conveyor line 10, the jig can slide onto the upper side of the first conveying device 81, and the structure is reliable and practical. The approach or separation of the two first support plates 82 can flexibly match jigs of different sizes, enhancing flexibility.

[0042] In this embodiment, the return mechanism 8 is provided with a first slide rail 83. The first driving device is fixedly installed on one side of the first conveying device 81 and drives the first conveying device 81 to move along the first slide rail 83 by driving the rollers connected to the first slide rail 83. The first driving device can be set as a motor, and the motor drives the rollers to make the first conveying device 81 move along the first slide rail 83.

[0043] In this embodiment, the frame 1 is provided with a second slide rail 11, a second conveying device 13 connected to the second slide rail 11, and a third driving device that drives the second conveying device 13 to reciprocate along the second slide rail 11 between the output port and the input port of the blanking mechanism 23 through a conveyor belt. The frame 1 is provided with a third conveying device 14. The upper side surface of the third conveying device 14 and the upper side surface of the second conveying device 13 drive a manipulator to reciprocate through a linear module to complete workpiece picking and placing. The blanking mechanism 23 is provided with a second output port, and one end of the second conveying device 13 is aligned and connected to the second output port; the frame 1 is provided with a pick-up claw 15 that drives close to or away from the upper side surface of the second conveying device 13 through a linear module.

[0044] During the actual operation process, the fixture and the workpiece enter the third conveying device 14 from the input port of the frame 1. Subsequently, the manipulator picks up the workpiece on the fixture and places it on the third conveying device 14. Then, the third conveying device 14 moves along the second slide rail 11 to send the fixture to the output port of the frame 1 to let the fixture flow out for recycling. The workpiece is placed on another fixture of the third conveying device 14 and is output from the second output port of the frame 1 to the next station together. The fixture flows back to the cycle for use from this equipment station, forming a small cycle with the previous stations, and can keep running in a cycle at a certain speed without the embarrassing situation of having to stop due to the lack of a fixture. The overall structural design is reliable and highly practical. The pick-up claw 15 moves up and down to pick up the cover plate on the upper side surface of the workpiece, allowing the manipulator to pick up the workpiece, and then putting the cover plate back on the upper side surface of the fixture to flow out for recycling together.

[0045] In this embodiment, the detection unit 5 includes a power-on test device 51 and a vision detection device 57 installed on the frame 1. The frame 1 is equipped with a conveyor belt driven by a motor to rotate, a suction plate 52 driven by a motor to flip, and a pick-up manipulator driven by a linear module to reciprocate on the upper side of the conveyor belt and the upper side of the suction plate 52. The frame 1 is equipped with a mounting plate 54 on one side of the conveyor belt. The motor driving the suction plate 52 to flip is fixedly installed on the back of the mounting plate 54, and the motor is connected with a rotating rod 53 extending through the mounting plate 54. The lower side of one side of the suction plate 52 is fixedly connected to the side of the rotating rod 53 by threads. The suction plate 52 is provided with a ventilation hole 55 and a plurality of suction holes 56 located on the upper side of the suction plate 52 and communicating with the ventilation hole 55. The flexible circuit board is conveyed by the conveyor belt to the detection range of the vision detection device 57. Subsequently, the vision detection device 57 takes a photo and identifies the picture to judge whether this side is qualified. After taking the photo, the flexible circuit board just moves to the lower part of the pick-up manipulator and is picked up, and then placed on the upper side of the suction plate 52 and is tightly adsorbed by the suction holes 56 on the upper side of the suction plate 52. Subsequently, the motor drives the rotating rod 53 to make the suction plate 52 flip 180 degrees, and the suction holes 56 are ventilated to make the flexible circuit board fall back onto the conveyor belt and continue to be conveyed to the next vision detection device 57 to complete the detection of the reverse side. The pick-up manipulator completes the pick-up and put-down actions by the on-off of the air in the suction cup, and the structure is simple and the use cost is low. The conveyor belt is combined with vision detection to detect while conveying, and the simple pick-up manipulator is used in cooperation with the suction plate 52 driven by the motor to flip to complete the flipping of the flexible circuit board, and the structure is reliable and practical.

[0046] In this embodiment, the storage rack includes a first side plate 72 and a second side plate 73 arranged at intervals. The first side plate 72 is provided with a first fixing seat 74 for fixing one side of the storage seat 71, and the second side plate 73 is provided with a second fixing seat 75 for fixing the other side of the storage seat 71. The numbers of the first fixing seat 74 and the second fixing seat 75 both correspond to the number of the storage seats 71.

[0047] See Figure 9 and Figure 16, Preferably, the number of the storage cavities 76 is eight, and the eight storage cavities 76 are arranged in an array on the storage base 71; the number of the storage bases 71 is ten, and the ten storage bases 71 are arranged in a vertical array. When storage is required, first move the storage base 71 out of the storage rack through the shifting device, and then move the workpiece onto the storage base 71 through the manipulator. After the loading is completed, move the storage base 71 back into the storage rack through the shifting device. If continuous loading is required, while the previous storage base 71 is moved back into the storage rack, the shifting device will move out the next storage rack and continue loading. And if the workpiece on the storage rack needs to be taken out, first move the storage base 71 out of the storage rack through the shifting device, and then move out the workpiece through the manipulator. In this way, through the combined use of the buffer mechanism 7 and the shifting device, the problems of workpiece accumulation and out-of-sync connection of workpieces between different workstations in the prior art are solved, the labor cost is reduced, and the automation degree is high. At the same time, the design that the storage rack is provided with at least two storage bases 71 and each storage base 71 is provided with at least one storage cavity 76 realizes large-capacity storage.

[0048] In this embodiment, connecting members 7A are installed on both the first side plate 72 and the second side plate 73. The second driving assembly includes a movable seat 7B fixedly connected to the connecting member 7A, a first guide post slidably connected to the movable seat 7B, a threaded sleeve installed on the movable seat 7B, a second lead screw 7D cooperating with the threaded sleeve, and a driving motor for driving the second lead screw 7D to rotate. One end of the guide post abuts against the top of the frame 1, and the other end of the first guide post is fixedly installed at the bottom of the frame 1 through a third fixing seat.

[0049] During operation, the driving motor drives the second lead screw 7D to rotate, so that the movable seat 7B moves up and down, thereby realizing the lifting movement of the storage rack. The movable seat 7B is provided with a linear bearing, and the guide post is slidably connected to the linear bearing, so as to ensure the accuracy of the lifting position of the storage rack.

[0050] In this embodiment, the shifting device includes a removing assembly for removing the storage base 71 from the storage rack. The removing assembly includes a third slide rail 77 provided on the frame 1, a third slide seat 78 slidably connected to the third slide rail 77, a fourth driving assembly for driving the third slide seat 78 to move back and forth on the third slide rail 77, a mounting seat 7E provided on the third slide seat 78, a material blocking member 7C provided on the mounting seat 7E and used for blocking the workpiece, and a fifth driving assembly for driving the mounting seat 7E to move back and forth in the vertical direction.

[0051] The fourth driving component is the combination of a motor and a synchronous belt. In practical applications, the motor drives the synchronous belt to rotate, so that the third sliding seat 78 moves back and forth on the third sliding rail 77. The fifth driving component is the combination of a cylinder and a positioning column. In practical applications, the guide column is used to ensure the accuracy of the lifting position of the mounting seat 7E. During operation, the mounting seat 7E is moved to the lower part of the target storage seat 71 through the cooperation of the fourth driving component and the fourth driving component. Then, the storage seat 71 is lifted by the fifth driving component to make it in a movable state. Then, the fourth driving component drives the mounting seat 7E to reset and moves the storage seat 71 out of the storage rack. In this way, the removal of the storage seat 71 is completed. During this process, there is no need for an operator to shift the storage seat 71, reducing the labor intensity of the operator.

[0052] In this embodiment, a bidirectional conveying mechanism 9 capable of running forward and backward is installed between the stamping unit 4 and the buffer mechanism 7. The bidirectional conveying mechanism 9 includes a mounting substrate 91 arranged on the machine frame 1 and a fourth driving device for driving the mounting substrate 91 to move back and forth in the vertical direction. The mounting substrate 91 is provided with at least two sets of conveying components 92. Each set of conveying components 92 includes a conveying line 10, a carrier seat arranged on the conveying line 10 for carrying workpieces, and a fifth driving device 93 for driving the conveying line 10 to run.

[0053] See Figure 18 , in this embodiment, the number of the conveying components 92 is two, and the two conveying components 92 are arranged in a vertical array on the mounting substrate 91. A fixing plate 94 is installed in the middle of the machine frame 1. The fixing plate 94 is penetrated by a second guide post 95. One end of the second guide post 95 abuts against the mounting substrate 91, and the other end of the second guide post 95 is provided with a bottom plate 96.

[0054] During operation, the first conveying component 92 runs in reverse to convey the first carrier seat to the pre-pressing unit 3 to carry the workpiece. After completion, the pre-pressing unit 3 conveys the workpiece onto the first conveying component 92. The first conveying component 92 runs forward to convey the first carrier seat to the punching unit 4 for discharging. At this time, the first driving device drives the mounting substrate 91 to rise, so that both ends of the second conveying component 92 are respectively aligned with the discharging end of the pre-pressing unit 3 and the feeding end of the punching unit 4. Subsequently, the second conveying component 92 runs in reverse to move the second carrier seat to the pre-pressing unit 3 to carry another workpiece. At this time, if the first carrier seat has completed discharging, the punching unit 4 conveys the first carrier seat onto the second conveying component 92. Subsequently, the first driving device drives the mounting substrate 91 to descend, so that both ends of the first conveying component 92 are aligned with the discharging end of the pre-pressing unit 3 and the feeding end of the punching unit 4. This function is to prevent the first carrier seat and the second carrier seat from blocking the conveying route between each other. When the second carrier seat has carried the workpiece and is conveyed to the first conveying component 92 through the pre-pressing unit 3, the second carrier seat is conveyed to the punching unit 4 for discharging by the forward running of the first conveying component 92. Subsequently, the first driving device drives the mounting substrate 91 to descend, and the second conveying component 92 runs in reverse to convey the first carrier seat into the pre-pressing device to carry the workpiece. In this way, the first carrier seat and the second carrier seat perform reciprocating loading and unloading movements.

[0055] The first driving device drives the mounting substrate 91 to move back and forth in the vertical direction, so that the two conveying components 92 alternate in position, so that the carrier seats of at least two conveying components 92 can reciprocate between two processing units or devices, effectively reducing the investment of the carrier seats in the production process, reducing the production cost. At the same time, the carrier seats of at least two conveying components 92 can work simultaneously in practical applications, improving the production efficiency.

[0056] In the description of the present invention, it should be noted that for the orientation terms, if there are terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0057] In addition, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0058] In the present invention, unless otherwise clearly specified and defined, terms such as "assembled", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it may be directly connected or connected through an intermediate medium, and it may be internally connected between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several variations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. The punching and detecting production line for flexible printed circuit boards includes a frame (1), and a glue pasting unit (2), a pre-pressing unit (3), a punching unit (4), and a detecting unit (5) which are arranged on the frame (1) according to the production process; It is characterized in that: The glue pasting unit (2) is provided with a feeding mechanism (21), a glue pasting device (22), a discharging mechanism (23), and a jig recycling system for recycling the jigs of the discharging mechanism (23) to the feeding mechanism (21); An intercepting mechanism (6) for intercepting workpieces, a buffer mechanism (7) for storing workpieces, and a manipulator for moving the workpieces intercepted by the intercepting mechanism (6) to the buffer mechanism (7) are arranged between the pre-pressing unit (3) and the punching unit (4). The intercepting mechanism (6) includes an intercepting seat (61) and a first driving component (62) for driving the intercepting seat (61) to intercept or release. When an abnormality occurs in the punching unit (4), the first driving component (62) drives the intercepting seat (61) to intercept the workpieces; The buffer mechanism (7) includes a storage rack arranged on the frame (1), at least two storage seats (71) arranged on the storage rack, at least one storage cavity (76) opened in the storage seat (71) for storing workpieces, a second driving component for driving the storage rack to move back and forth in the vertical direction, and a displacement device for moving the storage seat (71) into or out of the storage rack; The jig recycling system further includes a reflux mechanism (8) and two conveyor lines respectively connected to the output port and the input port of the reflux mechanism (8). The other end of one conveyor line is aligned and connected to the input port of the feeding mechanism (21), and the other end of the other conveyor line is aligned and connected to the output port of the discharging mechanism (23). The reflux mechanism (8) is provided with a first conveying device (81) and a first driving device for driving the first conveying device (81) to reciprocate between the output port and the input port of the reflux mechanism (8); The first conveying device (81) is provided with two first support plates (82). Both opposite sides of the two first support plates (82) are provided with conveyor belts and a second driving device for driving the conveyor belts to rotate through rollers. The first conveying device (81) is provided with a first lead screw passing through the two first support plates (82) and a motor or a hand crank for driving the first lead screw to rotate to make the two first support plates (82) approach or separate from each other.

2. The punching and detecting production line for flexible printed circuit boards according to claim 1, It is characterized in that: The reflux mechanism (8) is provided with a first slide rail (83). The first driving device is fixedly installed on one side surface of the first conveying device (81) and drives the first conveying device (81) to move along the first slide rail (83) by driving the rollers connected to the first slide rail (83).

3. The punching and detecting production line for flexible printed circuit boards according to claim 1, It is characterized in that: The frame (1) is provided with a second slide rail (11), a second conveying device (13) connected to the second slide rail (11), and a third driving device that drives the second conveying device (13) to reciprocate along the second slide rail (11) between the output port and the input port of the blanking mechanism (23) through a conveyor belt. The frame (1) is provided with a third conveying device (14). The upper side surfaces of the third conveying device (14) and the second conveying device (13) drive a manipulator to reciprocate through a linear module to complete workpiece picking and placing. The blanking mechanism (23) is provided with a second output port, and one end of the second conveying device (13) is aligned and connected to the second output port; the frame (1) is provided with a picking claw (15) that is driven by a linear module to approach and move away from the upper side surface of the second conveying device (13).

4. The punching and detecting production line for flexible printed circuit boards according to claim 1, characterized in that: The detection unit (5) includes a power-on testing device (51) and a visual detection device (57) installed on the frame (1). The frame (1) is equipped with a conveyor belt driven by a motor to rotate, a suction plate (52) driven by a motor to flip, and a picking manipulator driven by a linear module to reciprocate between the upper side surface of the conveyor belt and the upper side surface of the suction plate (52). The frame (1) is equipped with a mounting plate (54) on one side of the conveyor belt. The motor that drives the suction plate (52) to flip is fixedly installed on the back of the mounting plate (54), and the motor is connected to a rotating rod (53) that passes through the mounting plate (54) and extends out. The lower side surface of one side of the suction plate (52) is fixedly connected to the side surface of the rotating rod (53) by threads. The suction plate (52) is provided with a vent hole (55) and a plurality of suction holes (56) located on the upper side surface of the suction plate (52) and communicating with the vent hole (55).

5. The punching and detecting production line for flexible printed circuit boards according to claim 1, characterized in that: The storage rack includes a first side plate (72) and a second side plate (73) arranged at intervals. The first side plate (72) is provided with a first fixing seat (74) for fixing one side of the storage seat (71), and the second side plate (73) is provided with a second fixing seat (75) for fixing the other side of the storage seat (71). The numbers of the first fixing seat (74) and the second fixing seat (75) both correspond to the number of the storage seats (71).

6. The punching and detecting production line for flexible printed circuit boards according to claim 5, characterized in that: Both the first side plate (72) and the second side plate (73) are equipped with connecting members (7A). The second driving assembly includes a movable seat (7B) fixedly connected to the connecting member (7A), a first guide post (7C) slidably connected to the movable seat (7B), a threaded sleeve installed on the movable seat (7B), a lead screw (7D) used in cooperation with the threaded sleeve, and a driving motor for driving the lead screw (7D) to rotate. One end of the first guide post (7C) abuts against the top of the frame (1), and the other end of the first guide post (7C) is fixedly installed at the bottom of the frame (1) through a third fixing seat.

7. The die-cutting and inspection production line for flexible printed circuit boards according to claim 6, characterized in that: the shifting device includes a removing component for removing the storage seat (71) from the storage rack, and the removing component includes a third slide rail (77) provided on the machine frame (1), a third slide block (78) slidably connected to the third slide rail (77), a fourth driving component for driving the third slide block (78) to move back and forth on the third slide rail (77), a mounting seat (7E) provided on the third slide block (78), a material blocking member (79) provided on the mounting seat (7E) and used for blocking workpieces, and a fifth driving component for driving the mounting seat (7E) to move back and forth in the vertical direction.

8. The die-cutting and inspection production line for flexible printed circuit boards according to claim 1, characterized in that: a bidirectional conveying mechanism (9) capable of running in both forward and reverse directions is installed between the die-cutting unit (4) and the buffer mechanism (7), and the bidirectional conveying mechanism (9) includes a mounting substrate (91) provided on the machine frame (1) and a fourth driving device for driving the mounting substrate (91) to move back and forth in the vertical direction. The mounting substrate (91) is provided with at least two sets of conveying components (92), and each set of conveying components (92) includes a conveying line, a carrier seat provided on the conveying line and used for carrying workpieces, and a fifth driving device (93) for driving the conveying line to run.

9. The die-cutting and inspection production line for flexible printed circuit boards according to claim 8, characterized in that: the number of the conveying components (92) is two, and the two sets of conveying components (92) are arranged in a vertical array on the mounting substrate (91); a fixing plate (94) is installed in the middle of the machine frame (1), a second guide post (95) passes through the fixing plate (94), one end of the second guide post (95) abuts against the mounting substrate (91), and a bottom plate (96) is installed at the other end of the second guide post (95).

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