Optical fiber pigtail processing equipment

Abstract

The invention relates to optical fiber pigtail processing equipment which comprises a fiber cutting and stripping device, a fiber winding device, a clamping and transferring device, a fiber wiping device, an optical fiber dispensing device, a first pre-curing device, a capillary tube dispensing device, a second pre-curing device and a return line. A clamping tool used for bearing and fixing a 9-shaped short optical fiber is placed on the carrier, and the fiber cutting and stripping device and the fiber winding device are located on the upstream of the return line. And the optical fiber dispensing device is used for dispensing photocuring glue at the position, close to the exposed wire core, of the coating layer at the tail part. And the first pre-curing device is used for pre-curing the photo-curing glue which is dispensed on the tail part. The capillary tube dispensing device is used for dispensing the capillary tube and loading the capillary tube sleeve on the wire core, and the second pre-curing device is used for pre-curing the assembled capillary tube and the tail part. The optical fiber pigtail processing equipment is compact in overall structure and saves space. The processing flow is efficient and reliable, and the yield is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of optical fiber production, in particular to an optical fiber pigtail processing device. Background Art

[0002] Optical fiber, short for optical fiber, is a long, thin fiber made of glass or plastic. It uses the principle of total internal reflection to transmit light within the fiber, serving as a light transmission tool. During the optical fiber production process, connectors are installed at the ends of the fibers. Connectors typically consist of a capillary tube made of ceramic or glass and a housing that fits over the capillary. The housing typically includes a tail sleeve and a front sleeve.

[0003] An optical fiber typically consists of a core, cladding, and coating. The coating needs to be stripped before inserting the optical fiber into a capillary tube. The core and cladding after stripping the coating are called the core.

[0004] The optical fiber is cut into short optical fibers of a predetermined length as needed, and a connector is installed at one end of the short optical fiber to form an optical fiber pigtail.

[0005] When installing a connector, the optical fiber must first be cut to the specified length, then stripped and secured to the capillary tube by gluing. This facilitates subsequent housing installation. Currently, cutting and stripping are performed separately, resulting in two separate processes and low production efficiency. After stripping, manual fiber wiping, adhesive application, and capillary insertion are also required, resulting in low production efficiency.

[0006] When the optical fiber passes through the glue-dispensed capillary, the glue in the capillary easily overflows along the optical fiber, resulting in excessive and unevenly distributed glue remaining at the end of the capillary and on the optical fiber, increasing the stray loss of light propagation. Summary of the Invention

[0007] The present invention aims to provide an optical fiber pigtail processing device capable of improving production efficiency.

[0008] To achieve the above objectives, the technical solutions of the present invention are as follows.

[0009] Fiber optic pigtail processing equipment includes a fiber cutting and stripping device and a fiber winding device. The fiber cutting and stripping device is used to cut a long optical fiber into short optical fibers and strip the coating at one end of the short optical fiber to expose a predetermined length of the short optical fiber core. The fiber winding device can coil the short optical fiber into a "9" shape and make the exposed core located at the tail of the "9".

[0010] The optical fiber pigtail processing equipment also includes a clamping and transferring device, a fiber wiping device, an optical fiber dispensing device, a first pre-curing device, a capillary dispensing device, a second pre-curing device and a reflow line.

[0011] The reflow line includes a processing table and a carrier that circulates on the processing table. A clamping tool for carrying and fixing a "9"-shaped short optical fiber is placed on the carrier. The fiber wiping device, optical fiber dispensing device, first pre-curing device, capillary dispensing device and second pre-curing device are installed on the processing table in sequence.

[0012] The fiber cutting and stripping device and the fiber winding device are located upstream of the return line.

[0013] The fiber wiping device is used to wipe away the debris at the tail.

[0014] The clamping and transferring device is used to transport the "9"-shaped short optical fiber from the fiber winding device to the clamping tooling. The clamping tooling clamps and fixes the tail along the width direction of the processing table so that the exposed core faces the fiber wiping device.

[0015] The clamping fixture passes through the corresponding stations of the optical fiber dispensing device, the first pre-curing device, the capillary dispensing device and the second pre-curing device in sequence on the reflow line.

[0016] Optical fiber dispensing device, which applies light-curing glue on the tail coating near the exposed core.

[0017] The first pre-curing device pre-cures the light-curing adhesive dotted on the tail.

[0018] A capillary dispensing device comprises a dispensing mechanism, a dispensing stand, a three-axis moving group and a suction holding head.

[0019] The three-axis moving group is arranged on the side of the dispensing stand, and the suction head is arranged on the end of the three-axis moving group. The three-axis moving group is used to drive the suction head to move forward, backward, left, right, up and down, and the suction head is used to carry the capillary.

[0020] The dispensing stand is used to position the capillary, and the dispensing mechanism is used to dispense glue into the capillary.

[0021] The suction and holding head puts the dispensed capillary onto the exposed wire core.

[0022] The second pre-curing device is used to pre-curing the assembled capillary and tail.

[0023] As can be seen, the fiber wiping device, optical fiber glue dispensing device, first pre-curing device, capillary glue dispensing device, and second pre-curing device are sequentially installed on the processing table. The fiber cutting, stripping, and winding devices are located upstream of the return line. The overall structure of the fiber pigtail processing equipment is compact and space-saving. Glue is first applied to the fiber tail and the first pre-curing is performed. When the fiber core is inserted into the glue-dispensed capillary, the pre-cured glue prevents the glue from overflowing, making the process efficient and reliable, and improving the yield rate.

[0024] Furthermore, pads are installed on both sides of the upper surface of the processing table, and a base plate is installed on the upper surface of the two pads. Conveyor belts are provided on both sides of the outer surface of the base plate, and a motor that cooperates with the conveyor belt drive is provided at the bottom of the base plate. Rodless cylinders are provided between the two conveyor belts and on both sides of their length direction. Transfer slides are installed on the upper surface of the sliding seat on the rodless cylinder. Linear slides are provided on the side of the two conveyor belts that are close to each other, and the linear slides and the transfer slides are set at the same height so that they can be aligned and connected with each other. A slider is installed at the bottom of the carrier, and the slider matches the transfer slide and the linear slide. Card slots for synchronous transmission are evenly distributed on the outer surface of the conveyor belt, and a card strip that matches the card slot is provided at the bottom of the carrier. Baffles are installed at the ends of the two conveyor belts.

[0025] The arrangement of clips and slots enables the conveyor belt to move the carrier. When the carrier moves from the linear slide to the transfer slide, a rodless cylinder drives the carrier to the other linear slide for reverse transport, thus achieving the purpose of recirculation. The linear slides have an open structure design at both ends, making it easy to disassemble and assemble the carrier. The appropriate number and specifications of carriers can be installed according to production needs, improving the flexibility of the entire production line. The motor is located on the bottom side of the baseboard, and the transfer slide, linear slide, and carrier are located on the top side. The overall structure is compact and space-saving.

[0026] Furthermore, support rails are installed on both sides of the upper and lower sides of the base plate, and grooves are opened on the surface of the support rails, and the conveyor belt is set in the grooves, which is conducive to improving the stability of the carrier flow.

[0027] Furthermore, the clamping and transferring device includes a platform and a precession mechanism installed on the platform; the precession mechanism includes an electric slide rail, a lateral precession cylinder, a tilt drive cylinder and a height precession cylinder connected in series in sequence; the output end of the height precession cylinder is installed with three first finger cylinders through a connecting frame; the sliding direction of the electric slide rail is consistent with the length direction of the processing table, the precession direction of the lateral precession cylinder is consistent with the width direction of the processing table, and the precession direction of the height precession cylinder is consistent with the height direction of the processing table; the three first finger cylinders are coaxially arranged, and the height of a first finger cylinder close to the fiber wiping device is lower than that of the other two first finger cylinders.

[0028] The clamping and transferring device is not only responsible for transporting the "9"-shaped short optical fiber, but also acts as a clamping mechanism for the "9"-shaped short optical fiber during the fiber wiping process, achieving two goals at one stroke.

[0029] Furthermore, the fiber wiping device comprises a lower bracket, an upper bracket being slidably mounted on the upper surface of the lower bracket, a wiping cylinder being mounted on the lower bracket, and the end of the telescopic end of the wiping cylinder being connected to the upper bracket. An upper waste tray and an upper material tray are provided on the upper side of the outer surface of the upper bracket, and a lower waste tray and a lower material tray are provided on the lower side of the outer surface of the upper bracket. Guide shafts are provided on both the upper and lower sides of the outer surface of the upper bracket, and a tensioning mechanism is provided on both the upper and lower sides of the outer surface of the upper bracket. A second finger cylinder is mounted on the outer surface of the upper bracket, and an upper chuck and a lower chuck are mounted on the opposing surfaces of the two clamping fingers of the second finger cylinder, respectively. The end of the cloth belt on the upper material tray passes around the lower surface of the upper chuck and connects to the upper waste tray, while the end of the cloth belt on the lower material tray passes around the upper surface of the lower chuck and connects to the lower waste tray. A supporting mechanism is mounted on the outer surface of the lower bracket.

[0030] The clamping and transferring device drives the three first finger cylinders to clamp the coiled optical fiber, and the exposed core is extended between the upper clamp and the lower clamp, so that the upper clamp and the lower clamp can respectively drive the cloth tape on their surface to clamp the outer surface of the exposed core. Then, the wiping cylinder drives the second finger cylinder to pull back, so that the cloth tape can wipe the exposed core of the optical fiber. Compared with manual cleaning, it has high efficiency, good quality and stability, thereby improving product quality.

[0031] Furthermore, two sets of upper blocks are symmetrically arranged on the lower surface of the upper chuck, forming an upper cloth belt channel for the cloth belt to pass through between the two upper blocks. Two sets of lower blocks are symmetrically arranged on the upper surface of the lower chuck, forming a lower cloth belt channel for the cloth belt to pass through between the two lower blocks, and the lower blocks are arranged alternately with the upper blocks. An upper alcohol injection hole is opened on the surface of the upper cloth belt channel, and a lower alcohol injection hole is opened on the surface of the lower cloth belt channel.

[0032] By setting the upper and lower cloth tape channels, the cloth tape can be limited to prevent it from going off track, and alcohol soaks the cloth tape through the upper and lower alcohol injection holes, thereby improving the cleaning quality of the optical fiber tail end.

[0033] Furthermore, the dispensing stand has a stand fixed to its top, with a placement seat fixed to its side. The placement seat is provided with a groove for the capillary tube to be placed in. A vertical through-hole is provided at the top of the dispensing stand, below the placement seat. A detection camera, with its camera end facing the through-hole, is located at the bottom of the dispensing stand, below the through-hole. A dispensing mechanism is provided on the dispensing stand, located along its length and on one side of the through-hole. A suction head presses the capillary tube against the groove, thereby securing the capillary tube in place.

[0034] A detection camera captures the capillary tube's extension from the side of the placement seat. When the capillary tube's extension meets the predetermined value, the capillary tube is pressed against the receptacle, and the dispensing mechanism then dispenses the glue. This ensures the capillary tube's precise loading position, prevents the capillary tube from sliding under the thrust of the injected glue, and ensures that the glue is fully injected into the capillary tube's cavity, preventing leakage, ensuring dispensing quality, and improving injection reliability. Furthermore, the suction and holding head serves as both a loading and unloading device for the capillary tube and a clamping and positioning member for the capillary tube, achieving two goals at once.

[0035] Furthermore, a fill light is provided on the dispensing stand along the width direction of the dispensing stand on one side of the placement seat, which is beneficial to improving the shooting quality of the detection camera and improving the positioning accuracy.

[0036] Furthermore, the dispensing mechanism includes a dispensing platform, an air cylinder, an electric push cylinder, a syringe, and a dispensing needle. The dispensing platform is slidably mounted above the dispensing platform, the air cylinder is fixed to the top of the dispensing platform, the end of the cylinder's telescopic rod is fixed to the dispensing platform, the electric push cylinder is arranged above the dispensing platform, the syringe is detachably mounted on the dispensing platform, the end of the telescopic rod of the electric push cylinder abuts against the end of the syringe's piston rod, the dispensing needle is sleeved on the syringe's output port, and the syringe, dispensing needle, and container are coaxially arranged. This is conducive to simplifying the injection action and improving the efficiency of injection and dispensing.

[0037] Furthermore, the three-axis moving group includes a pair of arch frames, power guide rails A, a frame plate, power rails B, power rails C and a mounting seat. The two arch frames are arranged on both sides of the dispensing stand. The power guide rail A is installed on the top of one of the arch frames and extends back and forth. The moving seat A is installed on the power guide rail A in a forward and backward sliding manner. One end of the frame plate is fixed on the top of the moving seat A, and the other end is slidably installed on the arch frame on the other side. The power rail B is arranged on the frame plate and extends left and right. The moving seat B is installed on the power rail B in a left and right sliding manner. The power rail C is installed on the side of the moving seat B and extends vertically. The moving seat C is installed on the side of the power rail C in an up and down sliding manner. The mounting seat is fixed on the side of the moving seat C, and the suction head is installed on the side of the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0039] Figure 2 It is another three-dimensional structural schematic diagram of the present invention.

[0040] Figure 3 It is another three-dimensional structural schematic diagram of the present invention.

[0041] Figure 4 It is another three-dimensional structural diagram of the present invention.

[0042] Figure 5It is a schematic diagram of the three-dimensional structure of the return line of the present invention.

[0043] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention after the return line is hidden in the carrier.

[0044] Figure 7 for Figure 6 Magnified view of point B.

[0045] Figure 8 for Figure 6 Schematic diagram of the side structure.

[0046] Figure 9 It is a schematic diagram of the three-dimensional structure of the clamping and transferring device and the fiber rubbing device of the present invention.

[0047] Figure 10 It is another three-dimensional structural schematic diagram of the clamping and transferring device and the fiber rubbing device of the present invention.

[0048] Figure 11 for Figure 1 Magnified view of point A.

[0049] Figure 12 Schematic diagram of the structure of the lower bracket and the upper bracket of the fiber rubbing device of the present invention.

[0050] Figure 13 Schematic diagram of another structure of the lower bracket and the upper bracket of the fiber wiping device of the present invention.

[0051] Figure 14 Schematic diagram of the structure of the lower clamp of the fiber rubbing device of the present invention.

[0052] Figure 15 Schematic diagram of the structure of the upper clamp of the fiber rubbing device of the present invention.

[0053] Figure 16 This is a schematic diagram of the shape and structure of the optical fiber during fiber rubbing according to the present invention.

[0054] Figure 17 It is a schematic diagram of the three-dimensional structure of the capillary dispensing device of the present invention.

[0055] Figure 18 It is a schematic diagram of the local structure above the dispensing stand of the present invention.

[0056] Figure 19 This is a schematic diagram of the placement seat structure of the present invention.

[0057] Figure 20 This is a structural diagram of the three-axis moving group of the present invention.

[0058] Figure 21 Figure 20 Schematic diagram of the enlarged structure at point C in the middle.

[0059] Figure 22 This is a structural schematic diagram of the dispensing device of the present invention. DETAILED DESCRIPTION

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection", and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct connection or an indirect connection through an intermediate medium. Here, "fixed" means that the two are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, 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 therefore cannot be understood as a limitation on the embodiments of the present invention.

[0062] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0063] like Figures 1 to 4 As shown, the optical fiber pigtail processing equipment includes a fiber cutting and stripping device 5100 and a fiber winding device 5200. The fiber cutting and stripping device 5100 is used to cut a long optical fiber into short optical fibers and strip the coating at one end of the short optical fiber to expose a predetermined length of the core of the short optical fiber. The fiber winding device 5200 can coil the short optical fiber into a "9" shape and make the exposed core located at the tail of the "9".

[0064] The optical fiber pigtail processing equipment also includes a clamping and transferring device 600, a fiber wiping device 200, an optical fiber dispensing device 5300, a first pre-curing device 5400, a capillary dispensing device 5500, a second pre-curing device 5600 and a reflow line 5700.

[0065] The reflow line 5700 includes a processing table and a carrier that circulates on the processing table. A clamping tool for carrying and fixing a "9"-shaped short optical fiber is placed on the carrier. The fiber wiping device 200, the optical fiber dispensing device 5300, the first pre-curing device 5400, the capillary dispensing device 5500 and the second pre-curing device 5600 are installed on the processing table in sequence.

[0066] The fiber cutting and stripping device 5100 and the fiber winding device 5200 are located upstream of the return line 5700 .

[0067] The fiber wiping device 200 is used to wipe away the debris at the tail.

[0068] The clamping and transferring device 600 is used to transport the "9"-shaped short optical fiber from the fiber winding device 5200 to the clamping tooling. The clamping tooling clamps and fixes the tail along the width direction of the processing table so that the exposed core faces the fiber wiping device 200.

[0069] The clamping tool passes through the corresponding stations of the optical fiber dispensing device 5300, the first pre-curing device 5400, the capillary dispensing device 5500 and the second pre-curing device 5600 on the return line 5700 in sequence.

[0070] The optical fiber dispensing device 5300 applies light-curing adhesive to the tail coating near the exposed core.

[0071] The first pre-curing device 5400 pre-cures the light-curing adhesive dotted on the tail.

[0072] Preferably, the first pre-curing device 5400 performs pre-curing by ultraviolet irradiation.

[0073] The capillary dispensing device 5500 includes a dispensing mechanism, a dispensing stand, a three-axis moving group and a suction head.

[0074] The three-axis moving group is arranged on the side of the dispensing stand, and the suction head is arranged on the end of the three-axis moving group. The three-axis moving group is used to drive the suction head to move forward, backward, left, right, up and down, and the suction head is used to carry the capillary.

[0075] The dispensing stand is used to position the capillary, and the dispensing mechanism is used to dispense glue into the capillary.

[0076] The suction and holding head puts the dispensed capillary onto the exposed wire core.

[0077] The second pre-curing device 5600 is used to pre-curing the assembled capillary and tail.

[0078] Preferably, the second pre-curing device 5600 performs pre-curing by a thermal baking method.

[0079] See also Figures 5 to 8Pads 1101 are installed on both sides of the upper surface of the processing table 1100. A base plate 1102 is installed on the upper surface of the two pads 1101. Conveyor belts 1103 are installed on both sides of the outer surface of the base plate 1102. A motor 1105 is installed at the bottom of the base plate 1102 to drive and cooperate with the conveyor belts 1103. Rodless cylinders 1106 are installed between the two conveyor belts 1103 and on both sides of the length direction. Transfer slides 1107 are installed on the upper surface of the sliding seat of the rodless cylinder 1106. Linear slides 1108 are installed on the side of the two conveyor belts 1103 that are close to each other. The linear slides 1108 and the transfer slides 1107 are set at the same height so that they can be aligned and connected with each other. A slider 1104 is installed at the bottom of the carrier 1109, and the slider 1104 matches the transfer slide 1107 and the linear slide 1108. The outer surface of the conveyor belt 1103 is evenly distributed with slots for synchronous transmission, and the bottom of the carrier 1109 is provided with a card strip matching the slot.

[0080] When in use, the two motors 1105 drive the two conveyor belts 1103 to move in opposite directions. Since the bottom card strip of the carrier 1109 (not shown in the figure) is stuck in the card groove of the outer surface of the conveyor belt 1103 as the synchronous tooth, it can drive the carrier 1109 to move on the linear slide 1108. When the carrier 1109 moves to the transfer slide 1107, the conveyor belt 1103 stops running. At this time, the rodless cylinder 1106 can drive the transfer slide 1107 to move to the end of the linear slide 1108 on the other side to correspond to it. , and the card strip at the bottom of the carrier 1109 is re-engaged in the card slot on the outer surface of the conveyor belt 1103. At this time, the conveyor belt 1103 moves, and then drives the carrier 1109 to move in the opposite direction on the linear slide rail 1108 on the other side, thereby achieving the purpose of reflux movement of the carrier 1109. When the carrier 1109 needs to be disassembled, it is only necessary to disassemble and assemble the carrier 1109 on the transfer slide rail 1107, so that the appropriate number and different specifications of carriers 1109 can be installed according to production needs, thereby improving the flexibility of the entire production line.

[0081] Specifically, a baffle 1200 is installed at the end of each conveyor belt 1103. When the carrier 1109 is transported to the transfer slide rail 1107, the baffle 1200 can block it, thereby ensuring the accuracy of the position of the carrier 1109 and allowing the card strip at its bottom to be accurately inserted into the card groove on the outer surface of the conveyor belt 1103 on the other side.

[0082] Specifically, support rails 1300 are installed on both sides of the upper and lower sides of the base plate 1102. Grooves 1301 are formed on the surface of the support rails 1300, and the conveyor belt 1103 is disposed within the grooves 1301. The support rails 1300 provide support for the conveyor belt 1103, preventing the conveyor belt 1103 from separating from the slots and strips due to elastic deformation during operation. This improves the stability and reliability of transmission.

[0083] Specifically, the motor 1105 is a servo motor, which can accurately control the running speed and angle of the conveyor belt 1103, thereby ensuring that the card strip can be accurately docked with the card slot. Preferably, the motor 1105 is not limited to a servo motor, and can also be a stepper motor.

[0084] Specifically, two sliders 1104 are provided at the bottom of the carrier 1109, and the carrier 1109 and the sliders 1104 are connected by bolts. The setting of the two sliders 1104 provides stable support for the carrier 1109, making it more stable during movement, and the bolt connection method makes it convenient to replace it.

[0085] Specifically, the outer surface of the support guide rail 1300 is installed with multiple corner codes 1400 for fastening along its length direction. The multiple corner codes 1400 provide good reinforcement for the support guide rail 1300, ensuring the structural stability of the support guide rail 1300, and further ensuring that the conveyor belt 1103 can operate stably.

[0086] The present application is not limited to using the rodless cylinder 1106 to drive the transfer slide 1107 to move back and forth between the two linear slides 1108 along the width direction of the substrate 1102. The rodless cylinder 1106 can also be replaced by a driving mechanism such as a rod cylinder, a linear electric cylinder or an electric ball screw slide.

[0087] See also Figures 9 to 16 Specifically, the clamping and transferring device 600 includes a platform 610 and a precession mechanism 620 mounted on the platform 610; The precession mechanism 620 includes an electric slide rail 621, a lateral precession cylinder 624, a tilt drive cylinder 625 and a height precession cylinder 626 connected in series in sequence; The output end of the height advancement cylinder 626 is mounted with three first finger cylinders 601 via a connecting frame 627; The sliding direction of the electric slide rail 621 is consistent with the length direction 002 of the processing table 1100, the advance direction of the lateral advance cylinder 624 is consistent with the width direction 001 of the processing table 1100, and the advance direction of the height advance cylinder 626 is consistent with the height direction 003 of the processing table 1100; The three first finger cylinders 601 are coaxially arranged, and the height of the first finger cylinder 601 close to the fiber wiping device 200 is lower than that of the other two first finger cylinders 601 .

[0088] Specifically, the fiber wiping device 200 includes a lower bracket 100 .

[0089] The upper bracket 200 is slidably mounted on the upper surface of the lower bracket 100. The wiping cylinder 101 is mounted on the lower bracket 100, and the end of the telescopic end of the wiping cylinder 101 is connected to the upper bracket 200. The upper side of the outer surface of the upper bracket 200 is provided with an upper waste tray 201 and an upper material tray 202, and the lower side of the outer surface of the upper bracket 200 is provided with a lower waste tray 203 and a lower material tray 204. The upper and lower sides of the outer surface of the upper bracket 200 are provided with guide shafts 205, and the upper and lower sides of the outer surface of the upper bracket 200 are provided with a tensioning mechanism 300. A second finger cylinder 206 is mounted on the outer surface of the upper bracket 200. An upper clamp 207 and a lower clamp 208 are mounted on opposing surfaces of the two clamping fingers of the second finger cylinder 206. The end of the cloth tape on the upper material tray 202 passes over the lower surface of the upper clamp 207 and connects to the upper waste tray 201. The end of the cloth tape on the lower material tray 204 passes over the upper surface of the lower clamp 208 and connects to the lower waste tray 203. A supporting mechanism 400 is mounted on the outer surface of the lower bracket 100.

[0090] During use, the three first finger cylinders 601 are driven by the clamping and transporting device 600 to clamp the coiled optical fiber. Since one of the first finger cylinders 601 is lower than the other two first finger cylinders 601, the tail end of the optical fiber is at an inclined angle. Therefore, the tail end of the optical fiber can be easily raised by the supporting mechanism 400 to be horizontal and easily aligned with the second finger cylinder 206. At this time, the second finger cylinder 206 drives the upper clamp 207 and the lower clamp 208 to be in the open state, and the wiping cylinder 101 starts to drive the second finger cylinder 206 close to the tail end of the optical fiber, so that the upper clamp 207 and the lower clamp 208 extend to the upper and lower sides of the tail end of the optical fiber, and then the second finger cylinder 206 drives the upper clamp 207 and the lower clamp 208 to close, so that the cloth tape on the inside is pressed tightly on the tail end of the optical fiber, and then the wiping cylinder 101 drives the second finger cylinder 206 to pull back. Since the optical fiber is clamped and fixed by the three first finger cylinders 601, the cloth tape can wipe the exposed core of the optical fiber. Compared with manual cleaning, it is efficient, good and stable, thereby improving product quality.

[0091] Preferably, two groups of upper blocks 2071 are symmetrically provided on the lower surface of the upper chuck 207, and an upper cloth belt channel 2072 for the cloth belt to pass through is formed between the two upper blocks 2071; two groups of lower blocks 2081 are symmetrically provided on the upper surface of the lower chuck 208, and a lower cloth belt channel 2082 for the cloth belt to pass through is formed between the two lower blocks 2081, and the lower blocks 2081 and the upper blocks 2071 are staggered.

[0092] By providing the upper cloth belt channel 2072 and the lower cloth belt channel 2082, the cloth belt can be limited to prevent it from going off track.

[0093] Preferably, an upper alcohol injection hole 2073 is opened on the surface of the upper cloth belt channel 2072, and a lower alcohol injection hole 2083 is opened on the surface of the lower cloth belt channel 2082.

[0094] Alcohol soaks the cloth tape through the upper alcohol injection hole 2073 and the lower alcohol injection hole 2083, thereby improving the cleaning quality of the optical fiber tail end.

[0095] Preferably, the tensioning mechanism 300 includes a fixed rod 301 mounted on the outer surface of the upper bracket 200. A swing arm 302 is rotatably mounted on the outer surface of the upper bracket 200, and a spring 303 is connected between the swing arm 302 and the fixed rod 301. A tensioning shaft 304 is mounted on the outer surface of the swing arm 302, and a limit pin 305 is provided on the outer surface of the upper bracket 200 between the swing arm 302 and the fixed rod 301.

[0096] The swing arm 302 is flipped away from the fixed rod 301, and the cloth belt is wound around the surface of the tensioning shaft 304. At this time, the spring 303 applies tension to the swing arm 302. When the cloth belt is loose, the spring 303 pulls the tensioning shaft 304 back and tightens the cloth belt to achieve the tensioning effect.

[0097] Preferably, the supporting mechanism 400 includes a lifting cylinder 401 installed on the outer surface of the lower bracket 100, and a supporting plate 402 is installed at the end of the telescopic end of the lifting cylinder 401.

[0098] When the lifting cylinder 401 is started, its telescopic end drives the supporting plate 402 to rise, so that the tail end of the optical fiber can be lifted and leveled to facilitate alignment with the second finger cylinder 206.

[0099] Preferably, an encoder 500 is installed on the outer surface of the upper bracket 200 , and a code wheel 501 is installed on the output end of the encoder 500 .

[0100] It is convenient to count the amount of tape used.

[0101] Preferably, the lower bracket 100 includes two upright posts 1001 and a connecting plate 1002. The connecting plate 1002 is connected between the two upright posts 1001 by bolts, and the wiping cylinder 101 is mounted on the outer surface of the connecting plate 1002.

[0102] The overall structure is simple, and the connecting plate 1002 provides connection support for the two columns 1001, so that the connection strength is high, and the connecting plate 1002 also serves as a mounting bracket for the wiping cylinder 101, simplifying the structure.

[0103] Preferably, the upper bracket 200 includes a front plate 2001, a rear plate 2002, and connecting posts 2003. The four corners between the front plate 2001 and the rear plate 2002 are connected by connecting posts 2003. The upper waste tray 201, the upper material tray 202, the lower waste tray 203, the lower material tray 204, the guide shaft 205, the tensioning mechanism 300, and the encoder 500 are all mounted on the surface of the front plate 2001, and the second finger cylinder 206 is mounted on the surface of the rear plate 2002.

[0104] The overall structure is simple, and the front plate 2001 and the rear plate 2002 can be produced separately and then assembled, which facilitates production and reduces costs.

[0105] Figure 16 In the figure, the "9"-shaped fiber stub's coil 01 is equipped with two clamping areas 02 for the first finger cylinder 601. The exposed fiber core serves as the stripping area 03, which requires cleaning. When the lifting cylinder 401 is activated, its telescopic end raises the support plate 402, thereby raising and leveling the tail end of the fiber for easier alignment with the second finger cylinder 206.

[0106] The suction head 3 uses negative pressure to absorb the capillary, and cooperates with the three-axis moving group 2 to drive the suction head 3 to move, thereby realizing the transfer and loading and unloading of the capillary. The air distribution system and negative pressure suction principle of the suction head 3 adopt existing technology, and will not be described in detail.

[0107] See also Figures 17 to 22 A stand 4 is fixed on the top of the dispensing stand 1, and a placement seat 41 is fixed on the side of the stand 4. The placement seat 41 is provided with a receiving groove 42 for the capillary to be placed. The three-axis moving group 2 is used to drive the suction head 3 to move, and the capillary to be sucked is loaded onto the receiving groove 42, and the suction head 3 is used to press the capillary to achieve the positioning and fixation of the capillary. The suction head 3 serves as both a loading and unloading part for the capillary and a pressing and positioning part for the capillary, killing two birds with one stone.

[0108] The top of the dispensing stand 1 is located below the placement seat 41 and is provided with a vertical through-hole 11. The bottom of the dispensing stand 1 and below the through-hole 11 is provided with a detection camera 12 with a shooting end facing the through-hole 11. The detection camera 12 adopts the existing technology. The specific shooting and detection principle is not repeated here. On the dispensing stand 1, a dispensing mechanism 5 is provided on one side of the through-hole 11 along its length direction. After the capillary is pressed and positioned in the containing groove 42, as shown Figure 19 As shown, the dispensing end of the capillary exceeds the edge of the placement seat 41, that is, the dispensing end of the capillary extends from the side of the placement seat 41. The detection camera 12 is used to take pictures and analyze the extension of the capillary. When it is detected that the extension of the capillary meets the preset value, it means that the dispensing end of the capillary has reached the specified position. After the capillary is pressed, the dispensing mechanism 5 is used for dispensing to ensure that the glue can be completely injected into the cavity of the capillary to avoid leakage and ensure the quality of dispensing. Otherwise, it means that the position of the capillary is incorrect and the capillary needs to be moved until the extension of the capillary meets the preset value or re-loaded. After the dispensing is completed, the capillary can be unloaded.

[0109] After the capillary is pressed and loaded, the present invention uses the detection camera 12 to photograph and detect the extension amount of the capillary from the side of the placement seat 41. When the extension amount of the capillary meets the predetermined value, the glue dispensing mechanism 5 is used to perform glue dispensing to ensure the accuracy of the capillary loading position, ensure that the glue can be completely injected into the cavity of the capillary to avoid leakage, and ensure the quality of glue dispensing.

[0110] In addition, when the capillary is loaded by using the cooperation of the three-axis moving group 2 and the suction head 3, the capillary is sucked and transferred into the value storage groove 42 by the suction head 3 and pressed tightly, which can position and fix the capillary to ensure that the capillary will not deviate during glue dispensing and ensure the stability of glue dispensing. The suction head 3 serves as both a loading and unloading part for the capillary and a pressing and positioning part for the capillary, killing two birds with one stone.

[0111] Specifically, a fill light 13 is provided on the dispensing stand 1 along the width direction thereof on one side of the placement seat 41 to facilitate fill light for shooting and testing.

[0112] Specifically, the dispensing mechanism 5 includes a dispensing platform 51, a cylinder 52, an electric push cylinder 53, a syringe 54 and a dispensing needle 55. The dispensing platform 51 is slidably installed above the dispensing stand 1, the cylinder 52 is fixed on the top of the dispensing stand 1, the end of the telescopic rod of the cylinder 52 is fixed to the dispensing platform 51, the electric push cylinder 53 is arranged above the dispensing platform 51, and the syringe 54 is detachably installed on the dispensing platform 51. The installation method of the syringe 54 adopts the existing technology, and the details are no longer disclosed. The detachable design of the syringe 54 is convenient for timely replenishment when the glue is exhausted. The end of the telescopic rod of the electric push cylinder 53 is in contact with the tail of the piston rod of the syringe 54, and the dispensing needle 55 is mounted on the output port of the syringe 54. The syringe 54, the dispensing needle 55 and the container 42 are coaxially arranged.

[0113] When dispensing glue, the cylinder 52 is first extended to push the dispensing platform 51 as a whole toward the placement seat 41 until the dispensing needle 55 is accurately inserted into the cavity of the capillary. The electric push cylinder 53 is extended to push the piston rod of the syringe 54 to move, and the glue is injected into the capillary through the dispensing needle 55 to achieve the dispensing process. After the dispensing is completed, the cylinder 52 is retracted to drive the dispensing needle 55 out of the capillary. When dispensing glue next time, the electric push cylinder 53 continues to extend.

[0114] Specifically, the three-axis moving group 2 includes a pair of arch frames 21, a power guide rail A22, a frame plate 24, a power track B25, a power track C27 and a mounting seat 29. The two arch frames 21 are arranged on both sides of the dispensing stand 1. The power guide rail A22 is installed on the top of one of the arch frames 21 and extends forward and backward. A moving seat A23 is installed on the power guide rail A22 in a sliding manner. One end of the frame plate 24 is fixed on the top of the moving seat A23, and the other end is slidably installed on the arch frame 21 on the other side. The power track B25 is arranged on the frame plate 24 and extends left and right. A moving seat B26 is installed on the power track B25 in a sliding manner. The force track C27 is installed on the side of the moving seat B26 and extends vertically. The moving seat C28 is installed on the side of the power track C27 in an up and down sliding manner. The mounting seat 29 is fixed on the side of the moving seat C28. The suction head 3 is installed on the side of the mounting seat 29. The power guide rail A22 can drive the moving seat A23 to move forward and backward, and the power track B25 can drive the moving seat B26 to move left and right. Both adopt existing technologies and will not be disclosed in detail. The power track C27 can drive the moving seat C28 to move up and down, thereby realizing the up and down, left and right, front and back translation adjustment of the suction head 3, providing drive for the position adjustment of the suction head 3.

[0115] Specifically, a slide rail 211 extending forward and backward is fixed to the top of the arch frame 21 on the side away from the power guide rail A22, and a slide seat 212 is slidably installed on the slide rail 211. One end of the frame plate 24 is fixed to the top of the slide seat 212. The sliding cooperation between the slide seat 212 and the slide rail 211 provides a guiding limit and support function for the forward and backward movement of the frame plate 24, ensuring that the translation process of the frame plate 24 is smooth and stable enough.

[0116] Specifically, on the dispensing stand 1, a material seat 6 is provided on one side of the stand 4 along its width direction, and a placement groove 61 is provided on the material seat 6 for placing the material supply tray. Placing the material tray with the capillary in the placement groove 61 can facilitate the suction head 3 to take the material.

[0117] Preferably, a hot air blower 7 is provided on the other side of the dispensing stand 1 along its length, opposite the dispensing mechanism 5. The hot air blower 7 delivers hot air along the length of the dispensing stand 1 to heat the capillary tube and improve the quality of the capillary gluing. After the suction head 3 draws the capillary tube from the placement slot 61, it is first transferred to the air outlet of the hot air blower 7 for heating, and then transferred to the holding tank 42. The hot air delivered by the air outlet of the hot air blower 7 can naturally reach the holding tank 42 and the dispensing mechanism 5, thereby reducing the dispensing resistance of the dispensing mechanism 5 and improving the thermal insulation effect of the capillary tube.

[0118] The above is a detailed description of the present invention in conjunction with specific embodiments, and the specific implementation methods of the present invention should not be considered to be limited to these descriptions. For those skilled in the art to which the present invention relates, any equivalent substitutions or obvious modifications that do not depart from the concept of the present invention and have the same performance or use should be considered to fall within the scope of patent protection of the present invention as determined by the submitted claims.

Claims

1. An optical fiber pigtail processing device, comprising a fiber cutting and stripping device (5100) and a fiber winding device (5200), wherein the fiber cutting and stripping device (5100) is used to cut a long optical fiber into short optical fibers and strip a coating layer at one end of the short optical fiber so that a predetermined length of the core of the short optical fiber is exposed, and the fiber winding device (5200) can coil the short optical fiber into a "9" shape so that the exposed core is located at the end of the "9", characterized in that: It also includes a clamping and transporting device (600), a fiber wiping device (200), an optical fiber dispensing device (5300), a first pre-curing device (5400), a capillary dispensing device (5500), a second pre-curing device (5600) and a reflow line (5700); The reflow line (5700) comprises a processing table (1100) and a carrier circulating on the processing table, a clamping tool for carrying and fixing the "9"-shaped short optical fiber is placed on the carrier, and the fiber wiping device (200), the optical fiber dispensing device (5300), the first pre-curing device (5400), the capillary dispensing device (5500) and the second pre-curing device (5600) are sequentially installed on the processing table; The fiber cutting and stripping device (5100) and the fiber winding device (5200) are located upstream of the return line (5700); The fiber wiping device (200) is used to wipe away debris at the tail; The clamping and transporting device (600) is used to transport the "9"-shaped short optical fiber from the fiber winding device (5200) to the clamping tool, and the clamping tool clamps and fixes the tail along the width direction (001) of the processing table (1100) so that the exposed core faces the fiber wiping device (200); The clamping fixture passes through the corresponding workstations of the optical fiber dispensing device (5300), the first pre-curing device (5400), the capillary dispensing device (5500), and the second pre-curing device (5600) in sequence on the reflow line (5700); The optical fiber glue dispensing device (5300) is configured to apply light-curing glue to the coating layer at the tail portion close to the exposed core; The first pre-curing device (5400) pre-cures the light-curing adhesive dotted on the tail; The capillary dispensing device (5500) comprises a dispensing mechanism (5), a dispensing stand (1), a three-axis moving group (2) and a suction holding head (3); The three-axis moving group (2) is arranged on the side of the dispensing stand (1), and the suction head (3) is arranged on the end of the three-axis moving group (2). The three-axis moving group (2) is used to drive the suction head (3) to move forward, backward, left, right, and up and down. The suction head (3) is used to carry the capillary; The dispensing stand (1) is used to position the capillary, and the dispensing mechanism (5) is used to dispense glue into the capillary; The suction and holding head (3) sleeves the glued capillary onto the exposed wire core; The second pre-curing device (5600) is used to pre-curing the assembled capillary and the tail.

2. The optical fiber pigtail processing equipment according to claim 1, characterized in that: Pads (1101) are installed on both sides of the upper surface of the processing table (1100), a base plate (1102) is installed on the upper surfaces of the two pads (1101), conveyor belts (1103) are provided on both sides of the outer surface of the base plate (1102), and a motor (1105) driving the conveyor belt (1103) is provided at the bottom of the base plate (1102); A rodless cylinder (1106) is provided between the two conveyor belts (1103) and on both sides thereof in the length direction, a transfer slide rail (1107) is installed on the upper surface of the sliding seat of the rodless cylinder (1106), and a linear slide rail (1108) is provided on the side of the two conveyor belts (1103) close to each other, and the linear slide rail (1108) and the transfer slide rail (1107) are arranged at the same height so as to be aligned and connected with each other; A slider (1104) is installed at the bottom of the carrier (1109), and the slider (1104) matches the transfer slide rail (1107) and the linear slide rail (1108). The outer surface of the conveyor belt (1103) is evenly distributed with card slots for synchronous transmission. The bottom of the carrier (1109) is provided with a card strip matching the card slots. The ends of the two conveyor belts (1103) are both equipped with blocking rods (1200).

3. The optical fiber pigtail processing equipment according to claim 2, characterized in that: Support rails (1300) are installed on both sides of the upper and lower sides of the base plate (1102). A groove (1301) is provided on the surface of the support rail (1300), and the conveyor belt (1103) is arranged in the groove (1301).

4. The optical fiber pigtail processing equipment according to claim 1, characterized in that: The clamping and transporting device (600) comprises a platform (610) and a precession mechanism (620) mounted on the platform (610); The precession mechanism (620) comprises an electric slide rail (621), a lateral precession cylinder (624), a tilting drive cylinder (625), and a height precession cylinder (626) connected in series in sequence; The output end of the height precession cylinder (626) is mounted with three first finger cylinders (601) via a connecting frame (627); The sliding direction of the electric slide rail (621) is consistent with the length direction (002) of the processing table (1100), the precession direction of the lateral precession cylinder (624) is consistent with the width direction (001) of the processing table (1100), and the precession direction of the height precession cylinder (626) is consistent with the height direction (003) of the processing table (1100); The three first finger cylinders (601) are coaxially arranged, and the height of one of the first finger cylinders (601) close to the fiber wiping device (200) is lower than that of the other two first finger cylinders (601).

5. The optical fiber pigtail processing equipment according to claim 4, characterized in that: The fiber-wiping device (200) comprises a lower bracket (100); An upper bracket (200) is slidably mounted on the upper surface of the lower bracket (100), a wiping cylinder (101) is mounted on the lower bracket (100), and the end of the telescopic end of the wiping cylinder (101) is connected to the upper bracket (200); An upper waste tray (201) and an upper material tray (202) are provided on the upper side of the outer surface of the upper bracket (200), a lower waste tray (203) and a lower material tray (204) are provided on the lower side of the outer surface of the upper bracket (200), guide shafts (205) are provided on the upper and lower sides of the outer surface of the upper bracket (200), and tensioning mechanisms (300) are provided on the upper and lower sides of the outer surface of the upper bracket (200); A second finger cylinder (206) is installed on the outer surface of the upper bracket (200), and an upper clamp (207) and a lower clamp (208) are installed on opposite surfaces of the two clamping fingers of the second finger cylinder (206), respectively. The end of the cloth belt on the upper material tray (202) passes around the lower surface of the upper clamp (207) and is connected to the upper waste tray (201), and the end of the cloth belt on the lower material tray (204) passes around the upper surface of the lower clamp (208) and is connected to the lower waste tray (203); A supporting mechanism (400) is installed on the outer surface of the lower bracket (100).

6. The optical fiber pigtail processing equipment according to claim 5, characterized in that: Two groups of upper stoppers (2071) are symmetrically arranged on the lower surface of the upper clamp (207), and an upper cloth belt channel (2072) for the cloth belt to pass through is formed between the two upper stoppers (2071); two groups of lower stoppers (2081) are symmetrically arranged on the upper surface of the lower clamp (208), and a lower cloth belt channel (2082) for the cloth belt to pass through is formed between the two lower stoppers (2081), and the lower stoppers (2081) and the upper stoppers (2071) are staggered. An upper alcohol injection hole (2073) is provided on the surface of the upper cloth belt channel (2072), and a lower alcohol injection hole (2083) is provided on the surface of the lower cloth belt channel (2082).

7. The optical fiber pigtail processing equipment according to claim 1, characterized in that: A stand (4) is fixed on the top of the dispensing stand (1), a placement seat (41) is fixed on the side of the stand (4), and a receiving groove (42) for the capillary to be matched and placed is provided on the placement seat (41); The top of the dispensing stand (1) is provided with a vertical through-hole (11) below the placement seat (41); the bottom of the dispensing stand (1) is provided with a detection camera (12) below the through-hole (11) with its shooting end facing the through-hole (11); A glue dispensing mechanism (5) is provided on the glue dispensing stand (1) along its length and located on one side of the through opening (11); The capillary is pressed onto the containing groove (42) by the suction head (3), thereby achieving positioning and fixing of the capillary.

8. The optical fiber pigtail processing equipment according to claim 7, characterized in that: A fill light (13) is provided on the dispensing stand (1) along the width direction thereof and on one side of the placement seat (41).

9. The optical fiber pigtail processing equipment according to claim 8, characterized in that: The dispensing mechanism (5) comprises a dispensing platform (51), an air cylinder (52), an electric push cylinder (53), a syringe (54) and a dispensing needle (55); The dispensing platform (51) is slidably mounted above the dispensing stand (1), the cylinder (52) is fixed on the top of the dispensing stand (1), and the end of the telescopic rod of the cylinder (52) is fixed to the dispensing platform (51); The electric push cylinder (53) is arranged above the dispensing platform (51), and the syringe (54) is detachably mounted on the dispensing platform (51). The end of the telescopic rod of the electric push cylinder (53) is in contact with the tail of the piston rod of the syringe (54); The dispensing needle (55) is mounted on the output port of the syringe (54); The syringe (54), the dispensing needle (55) and the containing groove (42) are coaxially arranged.

10. The optical fiber pigtail processing equipment according to claim 9, characterized in that: The three-axis moving group (2) includes a pair of arch frames (21), a power guide rail A (22), a frame plate (24), a power track B (25), a power track C (27) and a mounting seat (29); The two arch frames (21) are arranged on both sides of the dispensing stand (1), and the power guide rail A (22) is installed on the top of one of the arch frames (21) and extends forward and backward; A movable seat A (23) is slidably mounted on the power guide rail A (22) in a forward and backward manner. One end of the frame plate (24) is fixed to the top of the movable seat A (23), and the other end is slidably mounted on the arch frame (21) on the other side. The power rail B (25) is arranged on the frame plate (24) and extends left and right. A movable seat B (26) is slidably mounted on the power rail B (25). The power rail C (27) is installed on the side of the movable seat B (26) and extends vertically. The movable seat C (28) is installed on the side of the power rail C (27) in an up and down sliding manner. The mounting seat (29) is fixed on the side of the movable seat C (28). The suction head (3) is installed on the side of the mounting seat (29).

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