An automatic sorting system for optical fiber disks

Abstract

The present invention relates to an automatic sorting system for optical fiber discs, characterized in that it includes an outer conveyor belt and an inner conveyor belt, which are arranged in parallel, and the tail end of the outer conveyor belt is connected to the head end of the inner conveyor end. A code scanning gun is installed at the head end of the inner conveyor end. The outer conveyor belt and the inner conveyor belt are both hollow conveyor belts. The inner conveyor belt is provided with lifting and pushing devices at intervals along the longitudinal direction to remove the optical fiber discs on the conveyor belt from the belt surface. Corresponding to each lifting and pushing device, a lane transfer line is arranged at intervals on the inner side of the inner conveyor belt, a buffer tray is provided on the side of the lane transfer line, and a fiber disc transfer robot is installed between the lane transfer line and the buffer tray. The present invention not only greatly improves the sorting efficiency of optical fiber discs, but also improves the automation level of optical fiber disc sorting. Through code scanning classification and automatic sorting, the accuracy of optical fiber disc sorting and classification is effectively improved, and the rate of false detection and mixing is reduced.

Description

Technical Field

[0001] The present invention relates to an automatic sorting system for multi-category optical fiber disks, belonging to the technical field of optical fiber production supporting equipment. Background Art

[0002] After being manufactured, optical fiber is typically wound onto fiber optic reels for packaging and storage. These reels are categorized by size and diameter: 25km, 50km, and 75km. Within each size, there are a variety of different craftsmanship categories. The fiber optic reels that roll off the packaging machine are transported along the conveyor line in completely random categories along their central axis. Existing fiber optic reels are typically sorted manually using a handheld barcode scanner to determine the specific category and specifications of the reels. Afterward, a human categorizes and confirms the reels before placing them on separate storage trays. This method not only requires a lot of manual labor and low sorting efficiency, but is also prone to errors, with different types of reels often being mixed on the same pallet. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic sorting system for optical fiber discs in response to the above-mentioned problems. The system can not only automatically sort optical fiber discs of different categories, greatly improving the sorting efficiency and automation level of optical fiber discs, but also has a high sorting accuracy.

[0004] The technical solution adopted by the present invention to solve the above-mentioned problems is: it includes an outer conveyor belt and an inner conveyor belt, the outer conveyor belt and the inner conveyor belt are arranged side by side, and the tail end of the outer conveyor belt is connected with the head end of the inner conveying end, and a barcode scanning gun is installed at the head end corresponding to the inner conveying end. The outer conveyor belt and the inner conveyor belt are both hollow conveyor belts, and the inner conveyor belt is provided with a lifting and pushing device at intervals along the longitudinal direction, which can remove the fiber disk on the conveyor belt from the belt surface, and corresponding to each lifting and pushing device, an aisle transfer line arranged at intervals is installed on the inner side of the inner conveyor belt, a cache pallet is set on the side of the aisle transfer line, and a fiber disk transfer robot is installed between the aisle transfer line and the cache pallet.

[0005] According to the above scheme, the hollow conveyor belt includes synchronous conveyor belts spaced parallel on both sides, the ends of the synchronous conveyor belts are connected to the synchronous drive device, and support wheels are arranged at intervals along the conveying direction. The minimum spacing space of the synchronous conveyor belts spaced parallel on both sides is larger than the outer disk diameter of the smallest fiber disk, and the synchronous conveyor belt is connected to the encoder.

[0006] According to the above solution, the minimum spacing between the parallel synchronous conveyor belts on both sides is 4 / 5 to 1 / 2 of the diameter of the outer disc of the smallest fiber disc.

[0007] According to the above solution, the parallel and spaced synchronous conveyor belts on both sides are installed on the frame in an outward-outward tilted shape, with the tilt angle close to or smaller than the normal direction of the contact between the optical fiber disk and the conveyor belt.

[0008] According to the above solution, the lifting and pushing device is installed between the synchronous conveyor belts spaced parallel to each other on both sides and below the conveying surface.

[0009] According to the above solution, the lifting and pushing device includes a fixed base, a lifting mechanism is installed on the fixed base, a lifting seat is installed on the upper end of the lifting mechanism, and the lifting seat is connected to the flip support plate through the flip drive mechanism.

[0010] According to the above solution, the lifting mechanism includes a lifting cylinder whose driving end is connected to the lifting seat, and guide rods are provided on both sides of the lifting cylinder, and the upper ends of the guide rods are connected to the lifting seat.

[0011] According to the above solution, the flip driving mechanism includes a double-link mechanism hinged to the lifting seat, the other end of the double-link mechanism is hinged to the flip cylinder, and a flip support plate is installed above the double-link mechanism.

[0012] According to the above scheme, a lifting and pushing device for pushing the fiber disc to the head end of the inner conveyor belt is installed at the tail end of the outer conveyor belt, and a lifting and pushing device for pushing the fiber disc to the head end of the outer conveyor belt is installed at the tail end of the inner conveyor belt.

[0013] According to the above scheme, the fiber reel transfer robot is a three-axis truss robot, which includes a three-dimensional truss and longitudinal guide rails installed on both sides of the upper end of the three-dimensional truss. A running beam (crane) is installed on the longitudinal guide rail, and a horizontal trolley with a lifting device is installed on the running beam. The lower end of the lifting device is equipped with a fiber optic reel clamp.

[0014] According to the above scheme, the tunnel transfer line is arranged on the inner side of the inner conveyor belt at vertical intervals along the longitudinal direction. The tunnel transfer line includes a long strip frame, and transmission chains are installed on both sides of the long strip frame. The transmission chain is connected to the drive motor through a chain transmission mechanism. Support rods bridging the transmission chains on both sides are installed at intervals on the transmission chain to form a transmission grid for placing fiber discs, and step by grid. A lateral fiber disc closing mechanism is provided at the rear section of the long strip frame.

[0015] According to the above solution, the buffer tray includes a frame-shaped tray rack, and a positioning tray composed of plastic positioning blocks is installed on the tray rack.

[0016] According to the above solution, a lifting and pushing device is installed near the head end of the outer conveyor belt to push the fiber tray to the outer NG (manual handling) conveyor line.

[0017] The operation process of the present invention is as follows: after the optical fiber disc passes through the automatic packaging machine and comes off the line, it runs forward along the outer conveyor belt. The axis of the optical fiber disc is parallel to the running direction of the conveyor belt. When the optical fiber disc runs to the tail end of the outer conveyor belt, the lifting and pushing device at the corresponding position is triggered to move the optical fiber disc from the outer conveyor belt to the inner conveyor belt. After entering the inner conveyor belt, the optical fiber disc runs from the head end to the tail end. At this time, the barcode scanning gun scans the barcode on the optical fiber disc to determine the category of the optical fiber disc. The control system assigns each optical fiber disc to its own lane transfer line and sends the signal The signal is transmitted to the encoder and the control system, and the displacement of the inner conveyor belt is tracked by the encoder, thereby dynamically determining the position of the optical fiber disc on the inner conveyor line. When the optical fiber disc reaches the position of the aisle transfer line to which it belongs, the jacking and pushing device at the corresponding position is triggered to lift the optical fiber disc off the conveyor belt and push the optical fiber disc to the aisle transfer line to which it belongs. Each time a optical fiber disc enters the aisle transfer line, it steps forward one grid. Multiple optical fiber discs are arranged in a single row in sequence. When a certain number is reached, the multiple optical fiber discs are grabbed by the optical fiber disc transfer robot and transferred to the cache tray.

[0018] The beneficial effects of the present invention are as follows: 1. The automatic packaging machine unloads the optical fiber disc directly onto the conveyor belt, and the barcode scanner on the conveyor belt scans the barcode to confirm the category of the optical fiber disc and automatically sorts it, which not only greatly improves the sorting efficiency of the optical fiber disc, but also improves the automation level of optical fiber disc sorting. 2. Through barcode classification and automatic sorting, the accuracy of optical fiber disc sorting and classification is effectively improved, and the false detection and mixing rate is reduced. 3. The use of a hollow conveyor belt to install a lifting and pushing device is not only simple and compact in structure and quick in operation, but also can be lifted and pushed without stopping during continuous transportation, thereby improving the operating efficiency of the sorting system and ensuring stable and reliable operation. 4. The aisle transfer line is equipped with a lateral fiber disc closing mechanism to ensure the accurate grasping and quick transfer of the fiber disc transfer robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the overall structure of an embodiment of the present invention.

[0020] Figure 2 It is a main view of the overall structure of an embodiment of the present invention.

[0021] Figure 3 It is a left view of the overall structure of an embodiment of the present invention.

[0022] Figure 4 It is an axonometric view of the overall structure of an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of encoder installation in one embodiment of the present invention.

[0024] Figure 6It is a structural diagram of a hollow conveyor belt in one embodiment of the present invention.

[0025] Figure 7 It is a structural diagram of a lifting and pushing device in one embodiment of the present invention.

[0026] Figure 8 It is an axonometric view of a lifting and pushing device in one embodiment of the present invention.

[0027] Figure 9 It is a structural diagram of a laneway branch line in one embodiment of the present invention.

[0028] Figure 10 It is an axial view of a tunnel branch line in one embodiment of the present invention.

[0029] Figure 11 Schematic diagram of a cache tray in one embodiment of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] The conveyor system comprises a long outer conveyor belt 2 and an inner conveyor belt 4, which are arranged side by side and connected end to end. The inner conveyor belt runs to the right, while the outer conveyor belt runs to the left, forming a clockwise conveyor loop. A lifting and pushing device 3 is installed at the tail end of the outer conveyor belt to push the fiber tray to the head end of the inner conveyor belt, while a lifting and pushing device is installed at the tail end of the inner conveyor belt to push the fiber tray to the head end of the outer conveyor belt. A barcode scanner 6 is installed at the head end of the inner conveyor belt to scan and identify the barcode of the fiber tray 1 entering the inner conveyor belt. The outer conveyor belt and the inner conveyor belt are both hollow conveyor belts. The hollow conveyor belt includes a synchronous conveyor belt 2.1 arranged in parallel and symmetrically on both sides. The synchronous conveyor belts on both sides are arranged on the frame 2.2 in an outward-pushing shape and tilted outward on both sides. The inclination angle is close to or less than the normal direction of contact between the optical fiber reel and the conveyor belt. The end of the synchronous conveyor belt is connected to the synchronous drive device, and support rollers are arranged at intervals along the conveying direction. The minimum spacing space (spacing) between the parallel and spaced synchronous conveyor belts on both sides is 2 / 3 of the diameter of the outer disc of the smallest fiber reel. The synchronous drive device includes a driving pulley 2.4 installed at one end of the synchronous conveyor belt and a driven pulley 2.3 at the other end. The synchronous drive motor 2.6 is connected to the driving pulley through a transmission mechanism 2.5. The synchronous drive devices on both sides have the same structure. An encoder 5 is installed at the driving pulley. The input wheel of the encoder is configured with the synchronous conveyor belt at the driving pulley to transmit the displacement value of the synchronous conveyor belt to the encoder. The inner conveyor belt is provided with a jacking and pushing device along the longitudinal interval that can push the fiber disc on the conveyor belt out of the belt surface. The jacking and pushing device 3 is installed between the synchronous conveyor belts spaced parallel to each other on both sides and below the conveying surface. The jacking and pushing device includes a fixed base 3.1, and upward and inward-inclined baffles are provided on both sides of the fixed base. A jacking mechanism is installed in the fixed base, and a lifting seat 3.5 is installed on the upper end of the jacking mechanism. The lifting seat is connected to a flip support plate 3.7 through a flip drive mechanism. The jacking mechanism includes a jacking cylinder 3.2 connected to the lifting seat at the driving end, and guide rods 3.3 are provided on both sides of the jacking cylinder. The upper end of the guide rod is connected to the lifting seat; the flip drive mechanism includes a double-link mechanism 3.6 hinged to the lifting seat at one end, and the other end of the double-link mechanism is hinged to the flip cylinder 3.4. A flip support plate 3.7 is installed above the double-link mechanism. Corresponding to each lifting and pushing device, an aisle transfer line 8 capable of receiving and pushing out the optical fiber disk is installed on the inner side of the inner conveyor belt. The aisle transfer lines are arranged at intervals on the inner side of the inner conveyor belt along the longitudinal direction. There are multiple aisle transfer lines corresponding to the types of optical fiber disks. The aisle transfer line includes a long strip frame 8.1, and transmission chains 8.6 are installed on both sides of the long strip frame. The transmission chain is connected to the drive motor 8.7 through a chain transmission mechanism 8.2. Support rods 8.4 that bridge the transmission chains on both sides are installed at intervals on the transmission chain to form a transmission grid for placing the optical fiber disk, and step by grid, that is, each time a optical fiber disk is entered, the aisle transfer line steps forward one grid.A lateral fiber tray closing mechanism is installed at the rear section of the long strip frame. This mechanism includes a positioning side plate 8.3 installed on one side and a closing push plate on the other side. The closing push plate is connected to a telescopic cylinder 8.5, which pushes the fiber tray to the side to ensure accurate grasping by the robot. A buffer tray 9 is installed at the rear of the lane transfer line. This buffer tray includes a bracket 9.1 and a frame-shaped tray rack 9.2. A positioning tray 9.3 composed of plastic positioning blocks is installed on the tray rack. The plastic positioning blocks are provided with several grooves, which are mainly used to position the fiber tray to prevent the tray from falling during transportation. The grooves are compatible with fiber trays of different sizes. A fiber tray transfer robot 10 is installed between the lane transfer line and the buffer tray. The fiber tray transfer robot is a three-axis truss robot, comprising a three-dimensional truss 10.1 and longitudinal guide rails 10.2 installed on both sides of the upper end of the three-dimensional truss. The longitudinal guide rails are equipped with a running beam 10.3 (traveling crane), and a horizontal trolley 10.4 with a lifting device is installed on the running beam. The lower end of the lifting device is equipped with a fiber tray clamp 10.5. The fiber tray clamp is a three-claw fiber tray clamp that can simultaneously grasp three fiber trays. When the fiber tray clamp reaches the rear section of the long strip rack, the fiber tray clamp releases and descends, clamping the fiber tray and then ascending to the corresponding buffer tray, where it is stored in an empty space on the buffer tray, completing the fiber tray sorting task. In addition, a lifting and pushing device is installed near the head end of the outer conveyor belt to push the fiber tray out of the outer conveyor belt. A corresponding NG (manual handling) conveyor line 7 is also provided to receive unrecognized fiber trays and transfer them to manual handling.

[0032] If a fiber optic reel encounters an error when scanning with scanner 6, the control system cannot assign it to a lane because its product category cannot be confirmed. The reel will continue to move rightward along inner conveyor belt 4 until the end of the inner conveyor belt triggers the lifting and pushing device, which pushes the reel onto outer conveyor belt 2. The reel then repeats the previous process, scanning the reel again and assigning it to a lane. If the second scan still fails, the control system will transfer the reel to the NG conveyor line, and the reel will be removed from the line for manual processing.

Claims

1. An automatic sorting system for optical fiber discs, characterized in that The utility model comprises an outer conveyor belt and an inner conveyor belt, the outer conveyor belt and the inner conveyor belt are arranged in parallel, and the tail end of the outer conveyor belt is connected with the head end of the inner conveying end, and a code scanning gun is installed at the head end of the inner conveying end. The outer conveyor belt and the inner conveyor belt are both hollow conveyor belts. The inner conveyor belt is provided with a lifting and pushing device at intervals along the longitudinal direction, which can remove the fiber disk on the conveyor belt from the belt surface. Corresponding to each lifting and pushing device, an aisle transfer line arranged at intervals is provided on the inner side of the inner conveyor belt, a cache tray is provided on the side of the aisle transfer line, and a fiber disk transfer manipulator is provided between the aisle transfer line and the cache tray; the hollow conveyor belt comprises synchronous conveyor belts spaced in parallel on both sides, the ends of the synchronous conveyor belts are connected to the synchronous drive device, and are spaced along the conveying direction. The supporting roller, the minimum spacing space between the synchronous conveyor belts spaced parallel on both sides is larger than the outer disk diameter of the smallest fiber disk, and the synchronous conveyor belt is connected to the encoder; the jacking and pushing device is arranged between the synchronous conveyor belts spaced parallel on both sides and below the conveying surface; the jacking and pushing device includes a fixed base, a jacking mechanism is arranged on the fixed base, a lifting seat is arranged on the upper end of the jacking mechanism, and a lifting seat is connected to the lifting seat through a flip driving mechanism. The jacking mechanism includes a jacking cylinder whose driving end is connected to the lifting seat, guide rods are arranged on both sides of the jacking cylinder, and the upper ends of the guide rods are connected to the lifting seat; the flip driving mechanism includes a double-link mechanism hinged to the lifting seat, the other end of the double-link mechanism is hinged to the flip cylinder, and a flip pallet is arranged above the double-link mechanism.

2. The optical fiber disk automatic sorting system according to claim 1, characterized in that The minimum spacing between the parallel and spaced synchronous conveyor belts on both sides is 4 / 5 to 1 / 2 of the diameter of the outer disc of the smallest fiber disc.

3. The optical fiber disk automatic sorting system according to claim 1 or 2, characterized in that The parallel and spaced synchronous conveyor belts on both sides are arranged on the frame in an outward-pushing shape and tilted outwardly on both sides, with the tilt angle being close to or smaller than the normal direction of the contact between the optical fiber disk and the conveyor belt.

4. The optical fiber disk automatic sorting system according to claim 1 or 2, characterized in that A lifting and pushing device is installed at the tail end of the outer conveyor belt to push the fiber disc to the head end of the inner conveyor belt, and a lifting and pushing device is installed at the tail end of the inner conveyor belt to push the fiber disc to the head end of the outer conveyor belt.

5. The optical fiber disk automatic sorting system according to claim 1 or 2, characterized in that The fiber reel transfer robot is a three-axis truss robot, which includes a three-dimensional truss and longitudinal guide rails installed on both sides of the upper end of the three-dimensional truss. A running beam is installed on the longitudinal guide rail, and a horizontal trolley with a lifting device is installed on the running beam. The lower end of the lifting device is equipped with a fiber reel clamp.

6. The optical fiber disk automatic sorting system according to claim 1 or 2, characterized in that The lane transfer line is arranged at vertical intervals along the longitudinal direction on the inner side of the inner conveyor belt. The lane transfer line includes a long strip frame, and transmission chains are installed on both sides of the long strip frame. The transmission chain is connected to the drive motor through a chain transmission mechanism. Support rods that bridge the transmission chains on both sides are installed at intervals on the transmission chain to form a transmission grid for placing fiber disks, and step by grid. A lateral fiber disk closing mechanism is provided at the rear section of the long strip frame.

7. The optical fiber disk automatic sorting system according to claim 1 or 2, characterized in that The buffer tray comprises a frame-shaped tray rack, on which a positioning tray formed by splicing plastic positioning blocks is arranged.

8. The optical fiber reel automatic sorting system according to claim 4, characterized in that A lifting and pushing device is installed near the head end of the outer conveyor belt to push the fiber tray to the outer NG conveyor line.

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