A single board intelligent patching machine and its use method

Abstract

The present invention belongs to the technical field of single board repair, and provides a single board intelligent patching machine and a method of using the same, wherein the single board intelligent patching machine includes a feeding conveying device, a punching device, a discharging conveying device, an image acquisition device, a first photoelectric switch, a mechanical arm, a second photoelectric switch, a detection device (not shown in the drawings), and a controller, and the controller is electrically connected to all of the above devices. The single board intelligent patching machine provided by the present invention can automatically feed, automatically identify the position and size of defects on the single board, and automatically match the corresponding punch, and automatically move to the corresponding punch for punching. After the punching is completed, the mechanical arm automatically places patches of different sizes on different defect positions, and the worker only needs to fix the patch with tape, which greatly saves labor costs.

Description

Technical Field

[0001] The invention belongs to the technical field of single board repair, and in particular relates to a single board intelligent patching machine and a use method thereof. Background Art

[0002] Plywood is made of multiple layers of peeled veneers that are glued together by hot pressing in a crisscross pattern according to the direction of wood fibers. The two surface veneers are called the top and bottom boards, the middle layer of veneer is called the core board, and the top, bottom and core boards are collectively called veneers. Veneers are generally peeled from the trunks of fast-growing trees such as fast-growing poplars, fast-growing willows, eucalyptus, etc. Due to various reasons such as bark and core, worm eyes, scars, and bent trunks encountered during the peeling process, the peeled veneers will have various defects.

[0003] In view of the above-mentioned defects of the single board, the traditional method is for the worker to use a blade to scratch off the defective part, and at the same time cut out a patch of the same shape, and then fix the patch with tape. In order to improve efficiency, some machinery manufacturers have invented punching dies and knife die patching machines in recent years, which use air pressure or hydraulic pressure to cut off the defective part to expose the patch-shaped hole, and then the worker takes the pre-cut patch to fill it and stick it with tape. This method saves the time of workers to use a blade to scratch off the defective part, saves manpower to a certain extent, and improves efficiency. However, since the position, size, and shape of the defect are not fixed, when punching out the defective part, the worker still needs to select a matching mold according to the type of defect, and manually move the sheet to the corresponding mold, and then manually control the corresponding switch for cutting. After punching, it is necessary to select a patch of the corresponding size and shape and put it in the punching position, and then glue it, and the labor cost is still high. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a single board intelligent patching machine and a method of using the same, so as to realize intelligent single board defect repair process, thereby achieving the purpose of significantly reducing labor costs.

[0005] In a first aspect, the present invention provides a veneer intelligent patching machine, comprising a feeding conveying device, a punching device, a discharging conveying device, a controller and a detection device, wherein the feeding conveying device, the punching device and the discharging conveying device are arranged adjacent to each other in sequence along the veneer conveying direction, the feeding conveying device and the discharging conveying device are used to convey the veneer in the longitudinal direction, and the punching device is used to punch out holes on the veneer for placing patches;

[0006] The feeding conveying device is provided with an image acquisition device and a first photoelectric switch, wherein the image acquisition device is used to acquire an image of a single board moved into an image acquisition area, and the first photoelectric switch is used to detect whether the single board has moved into the image acquisition area;

[0007] The discharge conveying device is provided with a mechanical arm and a second photoelectric switch, the mechanical arm is used to place the patch into the corresponding hole, and the second photoelectric switch is used to detect whether the single board is completely moved to the discharge conveying device;

[0008] The feed conveying device is connected to the discharge conveying device and moves synchronously in the transverse direction relative to the punching device, or the punching device moves in the transverse direction relative to the feed conveying device and the discharge conveying device;

[0009] The controller is electrically connected to the feed conveying device, the stamping device, the discharge conveying device, the image acquisition device, the first photoelectric switch, the robotic arm, the second photoelectric switch and the detection device, and the detection device is used to perform defect detection on the image.

[0010] Furthermore, a third photoelectric switch is provided at the feed end of the feed conveying device, and the third photoelectric switch is used to detect whether a single board is placed at the feed end of the feed conveying device, and the third photoelectric switch is electrically connected to the controller.

[0011] Furthermore, a pressure roller device is provided at least at the discharge end of the feed conveying device and at least at the feed end of the discharge conveying device, and the pressure roller device includes a mounting frame, a plurality of pressure rollers mounted on the mounting frame and a lifting device for moving the mounting frame up and down.

[0012] Furthermore, the lifting device includes a pressure roller bracket arranged on the feed conveying device, a pressure roller motor installed on the pressure roller bracket, and a connecting rope with one end connected to the output shaft of the pressure roller motor and the other end connected to one end of the mounting frame. The pressure roller motor is located above the mounting frame and is electrically connected to the controller. The other end of the mounting frame is movably connected to the feed conveying device.

[0013] Furthermore, the feed conveying device and the discharging conveying device are connected via a synchronous moving device, and the synchronous moving device includes a lateral moving device, a transmission device and a driving device. The feed conveying device and the discharging conveying device are both connected to at least one of the lateral moving devices, the transmission device is connected to all of the lateral moving devices, the driving device is used to drive the transmission device, and the driving device is electrically connected to the controller.

[0014] Furthermore, the lateral moving device is a belt transmission mechanism, which includes a driving pulley, a driven pulley, a transmission belt tightly fitted on the driving pulley and the driven pulley, and a connecting block arranged on the transmission belt, and the connecting block is connected to the feed conveying device or the discharge conveying device.

[0015] Furthermore, the transmission device is a transmission shaft passing through all the driving pulleys, and the transmission shaft is coaxially connected to the driving pulleys.

[0016] Furthermore, the lateral moving device is a ball screw pair, and the ball screw pair includes a screw and a nut, and the nut is connected to the feed conveying device or the discharge conveying device.

[0017] Furthermore, the transmission device includes a driven bevel gear, a driving bevel gear and a connecting shaft, and the same end of all the lead screws is respectively equipped with a driven bevel gear, each driven bevel gear is meshed with a driving bevel gear, and all the driving bevel gears are coaxially mounted on the connecting shaft.

[0018] In a second aspect, the present invention provides a method for using a single-board intelligent patching machine, comprising the following steps:

[0019] Starting the feeding and conveying device, and placing a single board at a feeding end of the feeding and conveying device;

[0020] When the single board triggers the first photoelectric switch, the feeding and conveying device is stopped, and the single board is located in the image acquisition area at this time;

[0021] The image acquisition device acquires the image of the single board and transmits the image to the controller, and the controller transmits the image to the detection device;

[0022] The detection device performs defect detection on the image and returns the detection result to the controller;

[0023] According to the detection result, the controller controls the feeding conveying device, the punching device and the discharging conveying device to work, so as to punch out the holes at all defective positions on the single board;

[0024] The robot arm grabs the patch and puts it into the corresponding hole on the board;

[0025] The discharge conveying device conveys the single board toward its discharge end;

[0026] When the single board triggers the second photoelectric switch, the discharge conveying device is stopped, and at this time, the single board is completely located on the discharge conveying device;

[0027] After the worker sticks and fixes the patch on the single board with adhesive tape, the worker takes away the single board or the single board is sent away by the discharge conveying device.

[0028] Beneficial effects of the present invention: The present invention provides a single board intelligent patching machine, which can automatically feed, automatically identify the position and size of defects on the single board and automatically match the corresponding punch, and automatically move to the corresponding punch for punching. After the punching is completed, the robotic arm automatically places patches of different sizes at different defect positions, and the workers only need to fix the patches with tape, which greatly saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0030] Figure 1 A three-dimensional diagram of a single-board intelligent patching machine from one perspective provided in an embodiment of the present application;

[0031] Figure 2 A three-dimensional diagram of a single-board intelligent patching machine provided in an embodiment of the present application from another perspective;

[0032] Figure 3 A front view of a single-board intelligent patching machine provided in an embodiment of the present application;

[0033] Figure 4 A schematic diagram of the structure of a stamping device provided in an embodiment of the present application;

[0034] Figure 5 A three-dimensional diagram of a feed conveying device and a pressure roller device provided in an embodiment of the present application;

[0035] Figure 6 A schematic diagram of the structure of a synchronous mobile device provided in one embodiment of the present application;

[0036] Figure 7 A schematic diagram of the structure of a synchronous mobile device provided in another embodiment of the present application;

[0037] Figure 8 A schematic diagram of the structure of a synchronous mobile device provided in another embodiment of the present application;

[0038] Fig. 9 A flowchart of a method for using a single-board intelligent patching machine provided in an embodiment of the present application.

[0039] Reference numerals:

[0040] 10-feeding conveying device, 11-third photoelectric switch, 12-image acquisition device, 13-first photoelectric switch, 101-track, 20-punching device, 21-punch, 22-die, 23-punching cylinder, 24-bracket, 30-discharging conveying device, 31-mechanical arm, 32-base, 33-storage slot, 34-second photoelectric switch, 40-controller, 50-synchronous moving device, 51-belt transmission mechanism, 511-driving pulley, 512 -driven pulley, 513-transmission belt, 514-connecting block, 52-ball screw pair, 521-screw, 522-nut, 53-transmission device, 541-driven bevel gear, 542-driving bevel gear, 543-connecting shaft, 551-pulley I, 552-pulley II, 553-transmission belt I, 56-driving device, 60-pressure roller device, 61-mounting frame, 62-pressure roller, 64-pressure roller bracket, 64-pressure roller motor, 65-connecting rope. DETAILED DESCRIPTION

[0041] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0042] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0043] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal" and "horizontal" and the like are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0045] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The "electrical connection" in the embodiments of the present application can be a line connection based on a line, or a communication connection based on a network signal, for example, it can be connected by a wire, or by a wire through an RS232 port, or by a network cable through an RS485 port, or by Bluetooth, 4G / 5G network or WIFI through a wireless network interface.

[0047] like Figure 1-5 As shown, an embodiment of the present application provides a single-board intelligent patching machine, including a feed conveying device 10, a punching device 20, a discharge conveying device 30, an image acquisition device 12, a first photoelectric switch 13, a robotic arm 31, a second photoelectric switch 34, a detection device (not shown in the figure) and a controller 40, and the controller 40 is electrically connected to all the above-mentioned devices.

[0048] The feeding conveying device 10, the punching device 20 and the discharging conveying device 30 are arranged adjacent to each other in the conveying direction of the single board. The feeding conveying device 10 and the discharging conveying device 30 are used to convey the single board in the longitudinal direction, and the punching device 20 is used to punch holes on the single board for placing patches.

[0049] The feed conveyor 10 and the discharge conveyor 30 can both be belt conveyors or roller conveyors. Due to the light weight of the single board, roller conveyors are prone to slipping during the conveying process. Therefore, the feed conveyor 10 and the discharge conveyor 30 are preferably belt conveyors, and the belts are preferably synchronous belts to facilitate precise control.

[0050] The feed conveyor 10 is provided with an image acquisition device 12 and a first photoelectric switch 13. The image acquisition device 12 is used to acquire images of a single board moved into an image acquisition area, and the first photoelectric switch 13 is used to detect whether the single board has moved into the image acquisition area. The image acquisition device 12 includes one or more wide-angle cameras, which are fixed above the feed conveyor 10 through a bracket. The first photoelectric switch 13 is also located above the feed conveyor 10, and the signal transmitting end of the first photoelectric switch 13 faces downward. In the conveying direction of the single board, that is, in the longitudinal direction, there is no strict positional relationship between the first photoelectric switch 13 and the image acquisition device 12, that is, the first photoelectric switch 13 can be located upstream of the image acquisition device 12. In this case, when the single board first enters the sensing range of the first photoelectric switch 13, the first photoelectric switch 13 generates a signal. After receiving the signal, the controller 40 can control the feed conveyor 10 to convey the single board to the image acquisition area below the image acquisition device 12 according to a preset program. The first photoelectric switch 13 can also be located downstream of the image acquisition device 12. In this case, when the feed conveyor 10 conveys the single board toward the discharge end of the feed conveyor 10, when the single board triggers the first photoelectric switch 13, the controller 40 stops the feed conveyor 10. At this time, the single board is just located in the image acquisition area.

[0051] In one embodiment, Figure 1 and Figure 5 As shown, a third photoelectric switch 11 is also provided on the feed end of the feed conveyor device 10, and the third photoelectric switch 11 is used to detect whether a single board is placed at the feed end of the feed conveyor device 10, and the third photoelectric switch 11 is electrically connected to the controller 40. After a single board is placed on the feed end of the feed conveyor device 10, the third photoelectric switch 11 is triggered, and the third photoelectric switch 11 then feeds back a signal to the controller 40, so that the controller 40 controls the feed conveyor device 10 to start working, thereby avoiding the feed conveyor device 10 running idle when no material is loaded. In one embodiment, a third photoelectric switch 11 is respectively provided on both sides of the feed end of the feed conveyor device 10, and the two third photoelectric switches 11 are in an "and" relationship, that is, when both third photoelectric switches 11 are triggered, the controller 40 controls the feed conveyor device 10 to work, thereby avoiding a single third photoelectric switch 11 from being triggered by mistake.

[0052] The controller 40 is usually an electric control box, which contains at least one microcomputer that can be connected to the Internet (it can be a single-chip microcomputer or a Raspberry Pi as a computing unit). When the single board is located in the image acquisition area, the image acquisition device 12 takes a picture of the single board and transmits the captured image to the controller 40. The controller 40 interacts with the detection device and transmits the image to the detection device.

[0053] The detection device, not shown in the accompanying drawings, may include a server or host for image processing and calculation. The detection device may be set locally, that is, at the same location as the controller 40, or may be set at other locations to remotely connect and call resources, which include image processing, running programs and calculations, etc. The specific hardware part of the detection device may include a high-performance NVIDIA graphics card, and the specific software part may be a computer vision (CV) related algorithm, including a straight line detection algorithm (Hough transform) for detecting leather boundaries, edge detection operators such as canny and sobel for identifying the boundaries of hole scars, and may be based on deep learning methods such as yolo and CNN for identifying, locating and classifying hole scars.

[0054] The detection device returns the detection results to the controller 40. The detection results include information such as the location coordinates, defect type, defect size and matching punch size of the defects on the single board. The controller 40 controls the operation of the feed conveying device 10, the punching device 20 and the discharge conveying device 30 according to the detection results.

[0055] like Figure 1 , 2 As shown in Figure 4, the punching device 20 at least includes a punch, a die, a punching cylinder, and a bracket for mounting the die and the punching cylinder. The cross-sectional shape of the punch is usually set to be shuttle-shaped, and the die is adapted to the punch. The punch is installed at the free end of the punching cylinder. The punch, the die and the punching cylinder constitute a set of punching components, and the punching device 20 includes at least one set of punching components. Due to the different sizes of defects, the punching components are usually provided in multiple groups.

[0056] The feed conveyor 10 and the discharge conveyor 30 convey the veneer in the longitudinal direction. When punching out the defective part, it is also necessary to convey the veneer in the transverse direction or move the punching device 20 in the transverse direction to achieve the punching out of the defective part. When punching out the defect on the veneer, the veneer may be located on the feed conveyor 10 at one end and on the discharge conveyor 30 at the other end. Therefore, when the feed conveyor 10 and the discharge conveyor 30 move in the transverse direction, the feed conveyor 10 and the discharge conveyor 30 should keep moving synchronously, and at this time, the punching device 20 remains stationary. When the feed conveyor 10 and the discharge conveyor 30 are both kept stationary, the punching device 20 moves in the transverse direction relative to the feed conveyor 10 and the discharge conveyor 30.

[0057] When the punching device 20 can move in the lateral direction, in this case, the punch may be slightly misaligned with the die, resulting in blanking failure and damage to the punch and / or die. Therefore, in the embodiment of the present application, it is preferred that the feed conveying device 10 and the discharge conveying device 30 can move relative to the punching device 20 in the lateral direction.

[0058] The feed conveyor 10 and the discharge conveyor 30 are connected together by a synchronous moving device 50 to maintain synchronous movement. The connection between the feed conveyor 10 and the discharge conveyor 30 can be mechanical connection or electrical connection, preferably mechanical connection, so that the connection is reliable and can ensure stable synchronous movement. The synchronous moving device 50 includes a lateral moving device 51, a transmission device 53 and a driving device. The feed conveyor 10 and the discharge conveyor 30 are connected to at least one of the above-mentioned lateral moving devices 51, and the transmission device 53 is connected to all of the lateral moving devices 51. The driving device is used to drive the transmission device 53 and is electrically connected to the controller 40. The driving device can be a servo motor or a stepping motor.

[0059] The lateral moving device 51 can be a belt transmission mechanism or a ball screw pair.

[0060] In one embodiment, Figure 6 As shown, the transverse moving device 51 is a belt transmission mechanism, and the structure of the belt transmission mechanism includes a driving pulley 511, a driven pulley 512, a transmission belt 513 tightly sleeved on the driving pulley 511 and the driven pulley 512, and a connecting block 514 arranged on the transmission belt 513, and the connecting block 514 is connected to the feeding conveying device 10 or the discharging conveying device 30. In this case, since the axial direction of the driving pulley 511 remains parallel or coincident and consistent with the longitudinal direction, the transmission device 53 is a transmission shaft passing through all the driving pulleys 511, and the transmission shaft is coaxially connected to the driving pulley 511, so that the structure of the transmission device 53 is the simplest. The embodiment of the present application preferably adopts a transverse moving device 51 and a transmission device 53 of this structure.

[0061] In one embodiment, Figure 7 and 8 As shown, the lateral moving device 51 is a ball screw pair, and the structure of the ball screw pair includes a screw 521 and a nut 522, and the nut 522 is connected to the feed conveying device 10 or the discharge conveying device 30. At this time, in one embodiment, as Figure 7 As shown, the transmission device 53 includes a driven bevel gear 541, a driving bevel gear 542 and a connecting shaft 543. The same end of all the lead screws 521 is respectively equipped with a driven bevel gear 541, each driven bevel gear 541 is meshed with a driving bevel gear 542, and all the driving bevel gears 542 are coaxially mounted on the connecting shaft 543. As shown in the figure, in one embodiment, Figure 8As shown, the transmission device 53 includes a pulley I551, a pulley II552, and a transmission belt I553 tightly mounted on the pulley I551 and the pulley II552. Preferably, the transmission belt I553 is a synchronous belt. The pulley I551 and the pulley II552 are respectively mounted on a lead screw 521 and are coaxially connected to the lead screw 521, and one of the lead screws 521 is driven by a driving device.

[0062] According to the detection results, the controller 40 controls the feeding conveyor 10, the punching device 20 and the discharging conveyor 30 to work according to the preset program, so that all defective parts on the single board are punched out with holes for placing patches. The single board can be punched out with holes while moving toward the discharging end of the discharging conveyor 30, that is, moving forward along the conveying direction of the single board, or it can move back and forth along the conveying direction of the single board. In the process of the single board moving toward the discharging end of the discharging conveyor 30, the mechanical arm 31 installed on the discharging conveyor 30 grabs the appropriate patch and puts it into the hole of the corresponding size until all the holes are placed with the corresponding patch. At this time, the single board may still not be completely located on the discharging conveyor 30. Therefore, the second photoelectric switch 34 installed on the discharging conveyor 30 is used to detect whether the single board is completely located on the discharging conveyor 30. When the second photoelectric switch 34 is triggered by the single board, the controller 40 stops the discharging conveyor 30. Then the worker sticks the patch on the single board with tape. Finally, the worker takes down the single board or manually operates the controller 40 to make the discharge conveying device 30 work again, thereby delivering the single board.

[0063] In one embodiment, the robot arm 31 is mounted on a base 32, which is mounted on the discharge conveyor 30. The base 32 is provided with a plurality of storage slots 33 for placing patches of different specifications. The robot arm 31 is provided with a suction cup, which sucks up the patches and places them into corresponding holes on the single board. The range of motion of the robot arm 31 at least covers the width direction of the discharge conveyor 30.

[0064] In one embodiment, at least at the discharge end of the feed conveyor 10 and at least at the feed end of the discharge conveyor 30, a pressure roller device 60 is further provided, and the pressure roller device 60 includes a mounting frame 61, a plurality of pressure rollers 62 mounted on the mounting frame 61, and a lifting device for moving the mounting frame 61 up and down. After the pressure rollers 62 are lowered by the lifting device, the pressure rollers 62 press the veneer on the feed conveyor 10 and the discharge conveyor 30, and the pressure rollers 62 rotate with the action of the feed conveyor 10 and the discharge conveyor 30 conveying the veneer in the longitudinal direction, ensuring that the veneer does not slip during the conveying process, so that the punching device 20 maintains a high accuracy rate of punching holes under the control of the controller 40.

[0065] In one embodiment, the lifting device includes a roller support 63 provided on the feed conveying device 10, a roller motor 64 installed on the roller support 63, and a connecting rope 65 connected to the output shaft of the roller motor 64 at one end and connected to one end of the mounting frame 61 at the other end. The roller motor 64 is located above the mounting frame 61 and is electrically connected to the controller 40. The other end of the mounting frame 61 is movably connected to the feed conveying device 10. The connecting rope 65 can be made of steel wire rope, nylon rope, and flexible iron wire / steel wire / copper wire, etc. The roller motor 64 reels or releases the connecting rope 65, so that the above-mentioned one end of the mounting frame 61 swings upward or downward around the hinge center. The lifting device of the above structure has a simple structure, a compact size, and a low cost.

[0066] In one embodiment, the feed conveyor 10 and the discharge conveyor 30 are both arranged on a track and move on the track. The movement mode can be sliding or rolling, preferably rolling. In one embodiment, a limiter is arranged on one side or both sides of the track. The limiter can be a non-contact proximity switch or a contact limit switch. The limiter is electrically connected to the controller 40. On the one hand, the limiter can limit the feed conveyor 10 and the discharge conveyor 30 from sliding off the track. On the other hand, it can play a reset role. By setting a corresponding reset program in the preset program of the controller 40, when all defective parts on the single board are punched out with holes, the controller 40 controls the feed conveyor 10 and the discharge conveyor 30 to move to the initial position or zero position in the horizontal direction, and then transports the single board to the discharge end of the discharge conveyor 30, thereby completing the subsequent patching and tape sticking operations. The advantage of returning to the zero position for transportation is that workers can perform the tape sticking operation in a safe area.

[0067] like Fig. 9 As shown, an embodiment of the present invention provides a method for using a single-board intelligent patching machine, which can be used in the above-mentioned single-board intelligent patching machine, and the method includes the following steps:

[0068] 801 . Start the feeding and conveying device 10 , and put a single board into the feeding end of the feeding and conveying device 10 .

[0069] 802. When the single board triggers the first photoelectric switch 13, the feeding and conveying device 10 is stopped. At this time, the single board is located in the image acquisition area.

[0070] 803. The image acquisition device 12 acquires the image of the single board and transmits the image to the controller 40. The controller 40 transmits the image to the detection device.

[0071] 804 . The detection device performs defect detection on the image and returns the detection result to the controller 40 .

[0072] 805. According to the detection result, the controller 40 controls the feed conveying device 10, the punching device 20 and the discharge conveying device 30 to operate, so as to punch out the holes at all defective positions on the single board.

[0073] 806. The robot arm 31 grabs the patch and puts it into the corresponding hole on the single board.

[0074] 807. The discharge conveying device 30 conveys the single board toward its discharge end.

[0075] 808 . When the single board triggers the second photoelectric switch 34 , the discharge conveying device 30 is stopped. At this time, the single board is completely located on the discharge conveying device 30 .

[0076] 809. After the worker sticks and fixes the patch on the single board with tape, the worker takes away the single board or the discharge conveying device 30 sends the single board away.

[0077] In the specification of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A single board intelligent patching machine, characterized by: The invention comprises a feeding conveying device (10), a punching device (20), a discharging conveying device (30), a controller (40) and a detection device, wherein the feeding conveying device (10), the punching device (20) and the discharging conveying device (30) are arranged adjacent to each other in sequence along a single board conveying direction, the feeding conveying device (10) and the discharging conveying device (30) are used to convey the single board in a longitudinal direction, and the punching device (20) is used to punch holes in the single board for placing patches; The feeding conveying device (10) is provided with an image acquisition device (12) and a first photoelectric switch (13), wherein the image acquisition device (12) is used to acquire an image of a single board moved into an image acquisition area, and the first photoelectric switch (13) is used to detect whether the single board has moved into the image acquisition area; The punching device (20) comprises at least a punch (21), a die (22), a punching cylinder (23), and a bracket (24) for mounting the die (22) and the punching cylinder (23); the cross-sectional shape of the punch (21) is set to be shuttle-shaped; the die (22) is adapted to the punch (21); the punch (21) is mounted on the free end of the punching cylinder (23); the punch (21), the die (22) and the punching cylinder (23) constitute a set of punching components; and a plurality of sets of the punching components are provided; The discharge conveying device (30) is provided with a mechanical arm (31) and a second photoelectric switch (34), the mechanical arm (31) being used to place the patch into the corresponding hole, and the second photoelectric switch (34) being used to detect whether the single board has been completely moved onto the discharge conveying device (30); The feed conveying device (10) and the discharge conveying device (30) are connected and move synchronously in a transverse direction relative to the punching device (20), or the punching device (20) moves in a transverse direction relative to the feed conveying device (10) and the discharge conveying device (30); The controller (40) is electrically connected to the feed conveying device (10), the punching device (20), the discharge conveying device (30), the image acquisition device (12), the first photoelectric switch (13), the mechanical arm (31), the second photoelectric switch and the detection device, and the detection device is used to perform defect detection on the image; A pressure roller device (60) is further provided at least at the discharge end of the feed conveying device (10) and at least at the feed end of the discharge conveying device (30). The pressure roller device (60) comprises a mounting frame (61), a plurality of pressure rollers (62) mounted on the mounting frame (61), and a lifting device for moving the mounting frame (61) up and down; the lifting device comprises a pressure roller bracket (63) arranged on the feed conveying device (10), a pressure roller motor (64) mounted on the pressure roller bracket (63), and a connecting rope (65) having one end connected to an output shaft of the pressure roller motor (64) and the other end connected to one end of the mounting frame (61); the pressure roller motor (64) is located above the mounting frame (61) and is electrically connected to the controller (40); the other end of the mounting frame (61) is movably connected to the feed conveying device (10).

2. The single board intelligent patching machine according to claim 1 is characterized in that: A third photoelectric switch (11) is provided at the feeding end of the feeding conveying device (10), and the third photoelectric switch (11) is used to detect whether a single board is placed at the feeding end of the feeding conveying device (10). The third photoelectric switch (11) is electrically connected to the controller (40).

3. The single board intelligent patching machine according to any one of claims 1-2, characterized in that: The feed conveying device (10) and the discharge conveying device (30) are connected via a synchronous moving device (50), wherein the synchronous moving device (50) comprises a transverse moving device (51), a transmission device (53) and a drive device; the feed conveying device (10) and the discharge conveying device (30) are both connected to at least one of the transverse moving devices (51); the transmission device (53) is connected to all of the transverse moving devices (51); the drive device is used to drive the transmission device (53); and the drive device is electrically connected to the controller (40).

4. The single board intelligent patching machine according to claim 3 is characterized in that: The transverse moving device (51) is a belt transmission mechanism, comprising a driving pulley (511), a driven pulley (512), a transmission belt (513) tightly sleeved on the driving pulley (511) and the driven pulley (512), and a connecting block (514) arranged on the transmission belt (513), wherein the connecting block (514) is connected to the feeding conveying device (10) or the discharging conveying device (30).

5. The single board intelligent patching machine according to claim 4 is characterized in that: The transmission device (53) is a transmission shaft that passes through all the driving pulleys (511), and the transmission shaft is coaxially connected to the driving pulleys (511).

6. The single board intelligent patching machine according to claim 3 is characterized in that: The lateral movement device (51) is a ball screw pair, the ball screw pair comprising a screw (521) and a nut (522), the nut (522) being connected to the feed conveying device (10) or the discharge conveying device (30).

7. The single board intelligent patching machine according to claim 6, characterized in that: The transmission device (53) comprises a driven bevel gear (541), a driving bevel gear (542) and a connecting shaft (543); one driven bevel gear (541) is respectively mounted on the same end of all the lead screws (521); each driven bevel gear (541) is meshed with one driving bevel gear (542); and all the driving bevel gears (542) are coaxially mounted on the connecting shaft (543).

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