An automatic disc changing system and method for an optical fiber sorting machine

Abstract

The application discloses an automatic disc changing system and method of an optical fiber screening machine, and the system comprises a take-up support component, a driving end component and a driven end component which are slidably arranged on the take-up support component, the driving end component comprises a driving end base, a driving shaft arranged on the driving end base, a main rotary driving source connected with the driving shaft, and a driving end chuck provided on the driving shaft, the driven end component comprises a driven end mounting base and a driven end disc changing rotary assembly arranged on the driven end mounting base, a plurality of driven shaft rotary assemblies are circumferentially arranged on the driven end disc changing rotary assembly, a driven end anti-rotation assembly is arranged on one side of the driven shaft rotary assembly, the driven shaft rotary assembly is driven to rotate by the driven end disc changing rotary assembly, the driven shaft rotary assembly located at a fiber penetrating position of the chuck is arranged on the same straight line as the driving shaft, and a driven end locking assembly is arranged on one side of the driven end disc changing rotary assembly, and the application can improve the disc changing efficiency, reduce the vibration during high-speed operation, and increase the stability of optical fiber winding.

Description

Technical Field

[0001] This invention relates to the field of optical fiber equipment technology, and specifically to an automatic tray changing system and method for an optical fiber sorting machine. Background Technology

[0002] Optical fiber, also known as optical waveguide fiber, is an important transmission medium in communication. As an important piece of equipment in the optical fiber production process, the working efficiency of the optical fiber screening machine affects the production speed of optical fiber and the cost of the production workshop.

[0003] Currently, most fiber optic sorting machines require manual operation: threading the fiber through the bottom hole of the fiber optic reel, then winding it several times around the side of the reel before finally placing it into the take-up section of the sorting machine. This process is prone to fiber breakage and requires a certain level of skill from the operators. However, with the continuous improvement of production efficiency and the demands of smart factory construction, reducing manual labor is an inevitable trend. Therefore, there is an urgent need for a method that can automatically change the reel and thread the fiber into the reel, thereby improving the efficiency of the sorting machine and reducing manual labor. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic reel changing system and method for an optical fiber sorting machine, which can improve the efficiency of reel changing, reduce vibration during high-speed operation, and increase the stability of optical fiber winding.

[0005] The technical solution adopted in this invention is: An automatic tray changing system for an optical fiber sorting machine includes an active end component, a passive end component, and a take-up support component. The active end component and the passive end component are arranged opposite to each other on the take-up support component. The active end component or the passive end component is slidably connected to the take-up support component. A push-pull locking mechanism is connected between the active end component and the passive end component. The active end component includes an active end base mounted on the take-up support component, an active shaft laterally mounted on the active end base, and a main rotation drive source connected to the active shaft. The active shaft is provided with an active end clamp. The passive end component includes a passive end mounting base disposed on the take-up support component and a passive end changing disc rotating assembly disposed on the passive end mounting base. Multiple passive shaft rotating assemblies are distributed circumferentially on the passive end changing disc rotating assembly. A passive end anti-rotation assembly is provided on one side of the passive shaft rotating assembly. The passive end changing disc rotating assembly can drive the passive shaft rotating assembly to rotate around a rotation center. The passive shaft rotating assembly includes a passive shaft, and each passive shaft is provided with a passive end clamping disc assembly. When the passive shaft rotating assembly rotates to the fiber threading position of the clamping disc, the passive shaft and the drive shaft are arranged opposite to each other on the same straight line. A passive end locking assembly is provided on one side of the passive end changing disc rotating assembly to lock the passive end changing disc rotating assembly and prevent it from rotating.

[0006] Preferably, the take-up support component is provided with a take-up guide slider assembly, and the active end base includes an active end slide table disposed on the take-up guide slider assembly, with the active shaft disposed on the active end slide table; The push-pull locking mechanism includes a disc clamping cylinder and a disc clamping cylinder fixing block. The disc clamping cylinder is mounted on the active end base. The movable end of the disc clamping cylinder is connected to the passive end mounting base through the disc clamping cylinder fixing block. The extension and retraction of the disc clamping cylinder can drive the active end slide to move back and forth along the take-up guide rail slider assembly. The push-pull locking mechanism also includes an active end positioning cylinder and an active end positioning upper slider. The active end positioning cylinder is set on the active end slide, and the active end positioning upper slider is connected to the movable end of the active end positioning cylinder. The take-up support component is fixed with an active end lower positioning block. When the active end slide moves along the take-up guide slider assembly toward the passive end mounting base to clamp the fiber optic reel, the active end positioning cylinder drives the active end positioning upper slider to extend, so that the active end positioning upper slider fits tightly with the passive end mounting base, thereby locking the position of the active end slide.

[0007] Preferably, the main rotation drive source includes an active end drive motor, and the output end of the active end drive motor is connected to the drive shaft; An active end slide is equipped with an active end clamping plate positioning sensor; an active end clamping plate positioning hole is opened on the active end clamping plate; the active end clamping plate positioning sensor is close to the active end clamping plate and can detect the active end clamping plate positioning hole on the active end clamping plate. The active end chuck is provided with an active end anti-rotation block, and / or the passive end chuck is provided with a passive end anti-rotation block.

[0008] Preferably, the passive end clamping plate assembly includes a passive end clamping plate, which is sleeved on the passive shaft. The passive end clamping plate is provided with a take-up clamp, and an oblique opening is provided at the edge of the passive end clamping plate where the take-up clamp is installed.

[0009] Preferably, the passive end disc changing rotation assembly includes a passive end disc changing drive motor, a reducer, and a passive end rotating arm. The passive end disc changing drive motor and the reducer are mounted on the passive end mounting base. The output end of the reducer is connected to the middle of the passive end rotating arm. There are two passive shaft rotating assemblies, which are respectively mounted at both ends of the passive end rotating arm. Two mounting holes are provided at both ends of the passive end rotating arm. The passive shafts of the two passive shaft rotating assemblies are respectively mounted in the two mounting holes, and the passive shafts can rotate within the mounting holes.

[0010] Preferably, a passive anti-rotation release cylinder is provided on one side of the fiber threading position of the clamp; The passive-end anti-rotation assembly includes a passive-end anti-rotation block mounting plate, a passive-end friction block, a guide rail assembly, a passive-end anti-rotation assembly compression spring, a guide screw, and a guide screw positioning block. The guide rail assembly is mounted on the passive-end changing disc rotating assembly. The passive-end anti-rotation block mounting plate is mounted on a slider on the guide rail assembly, allowing it to slide along the guide rail assembly. The passive-end anti-rotation block mounting plate has a through hole through which the passive shaft passes. A gap is left between the passive shaft and the inner ring of the through hole in the passive-end anti-rotation block mounting plate. The passive-end friction block is mounted on the passive-end anti-rotation block mounting plate, and the end of the passive-end friction block near the passive shaft has an opening groove. The guide screw positioning block is fixed to the passive-end changing disc rotating assembly. On the component, one end of the guide screw passes through the guide screw positioning block and the passive end anti-rotation component compression spring in sequence and is connected and fixed to the passive end anti-rotation block mounting plate. The passive end anti-rotation component compression spring is locked on the guide screw. The passive end anti-rotation component compression spring is sleeved on the guide screw. One end of the passive end anti-rotation component compression spring contacts the passive end anti-rotation block mounting plate, and the other end contacts the guide screw positioning block. The passive end anti-rotation component compression spring is in a compressed state. The spring force of the passive end anti-rotation component compression spring causes the passive end anti-rotation block mounting plate to move closer to the passive shaft rotation component, which drives the passive end friction block to press against the friction circle of the passive shaft, so that the passive shaft rotation component itself cannot rotate. The passive end anti-rotation release cylinder is located on the outside of the passive end anti-rotation block mounting plate at the fiber threading position of the clamp. When the passive end anti-rotation release cylinder extends and acts on the passive end anti-rotation block mounting plate at the fiber threading position of the clamp, the passive end anti-rotation block mounting plate and the passive end friction block move back against the spring force, and the passive end friction block does not contact the passive shaft. When the passive end anti-rotation release cylinder retracts and disengages from the passive end anti-rotation block mounting plate at the fiber threading position of the clamp, the moving end anti-rotation block mounting plate and the passive end friction block, under the action of the spring force, bring the passive end friction block into close contact with the passive shaft, preventing the passive shaft at the fiber threading position of the clamp from rotating.

[0011] Preferably, the passive shaft rotation assembly further includes a disc clamping assembly and a passive base, with the passive shaft mounted in the passive base via bearings; the passive shaft is provided with a passive shaft friction circle and a disc clamping assembly positioning hole in sequence along the axial direction, and the disc clamping assembly is installed in the disc clamping assembly positioning hole of the passive shaft; The passive shaft friction circle is provided with a positioning groove for the passive shaft rotation component. The passive shaft friction circle is used to contact the passive end anti-rotation component, and the positioning groove for the passive shaft rotation component is used to contact the passive end anti-rotation component for better positioning.

[0012] Preferably, the passive end locking assembly is arranged on the rear side of the passive end disc changing rotation assembly; The passive end locking assembly includes a push rod cover plate, a push rod limiting block, a positioning piston, and a passive end locking push-pull mechanism. The push rod cover plate is located on the push rod limiting block. The push rod limiting block has a positioning piston guide hole along the passive shaft axis. The positioning piston is located in the positioning piston guide hole. The passive end locking push-pull mechanism is connected to the positioning piston. The passive end locking push-pull mechanism drives the positioning piston to move back and forth along the positioning piston guide hole, so that one end of the positioning piston extends out of the push rod limiting block and presses against the passive end changing disc rotating assembly to form a lock, or so that one end of the positioning piston retracts and disengages from the passive end changing disc rotating assembly to release the lock.

[0013] Preferably, the passive end locking push-pull mechanism includes a push rod, a push roller, a positioning pin, and a locking positioning push cylinder. The inner end of the positioning piston is connected to the push roller through the positioning pin. The push rod is vertically arranged on one side of the push roller and is connected to the locking positioning push cylinder. On the side of the push rod near the push roller, along the extension and retraction direction of the locking positioning push cylinder, a push rod reset surface, a push rod locking boss, and a push rod front limit surface are arranged sequentially. The heights of the push rod reset surface, the push rod locking boss, and the push rod front limit surface increase sequentially. The two ends of the positioning pin pass through the two sides of the push rod limit block and are connected to the push rod cover plate and the two sides of the push rod limit block through a locking positioning tension spring.

[0014] An automatic tray changing method for an automatic tray changing system using the fiber optic screening machine described above, characterized by comprising the following steps: Step 1: When initially placing the fiber optic tray, the push-pull locking mechanism is in the open state, the active end component and the passive end component are in a far apart position, the passive end locking component locks the passive end tray changing rotation component to prevent the passive end tray changing rotation component from rotating, and the passive end anti-rotation component locks and jams the passive shaft to prevent the passive shaft from rotating. Step 2: Install the fiber optic tray onto the passive shaft rotation assembly in the installation position. Release the passive end locking assembly from the passive end tray changing rotation assembly. Rotate the fiber optic tray in the installation position to the fiber insertion position using the passive end tray changing rotation assembly. Step 3: The passive end locking assembly locks the passive end tray changing rotation assembly again. The push-pull locking mechanism drives the active end component and the passive end component to move closer together, so that the active shaft is inserted into the center hole of the fiber optic tray in the fiber threading position from the other side. The active end clamping plate on the active shaft and the passive end clamping plate on the passive shaft clamp the fiber optic tray from both sides. The active end component and the passive end component are in the retracted position, and the position between the active end component and the passive end component is locked by the push-pull locking mechanism. Step 4: Insert the optical fiber into the optical fiber optic spool, unlock the passive anti-rotation component, and drive the active rotation drive source to rotate the active shaft, causing the optical fiber spool to rotate and the optical fiber to be wound around the optical fiber spool; at the same time, install an empty optical fiber spool or replace a full optical fiber spool with an empty optical fiber spool on the passive shaft rotation component in the installation position. Step 5: After the fiber is fully wound onto the fiber optic reel, the active shaft stops rotating. The passive end locking component releases the passive end reel rotation component, and the passive end anti-rotation component locks and holds the passive shaft. The passive end reel rotation component drives the fully wound fiber optic reel to rotate from the clamping position to the installation position. At the same time, the empty fiber optic reel installed in the installation position is rotated to the clamping position. Repeat steps 3-5 until the fiber optic tray loading task is completed.

[0015] The beneficial effects of this invention are: This invention utilizes a passive-end reel-changing rotating assembly to rapidly rotate an empty fiber optic reel pre-installed at the mounting position to the fiber threading position, while simultaneously rotating a fully wound fiber optic reel to the mounting position. A push-pull locking mechanism separates and brings the active-end and passive-end components together, achieving automatic positioning and automatic replacement of full and empty fiber optic reels, thus improving reel-changing efficiency. Furthermore, a passive-end locking assembly locks the passive-end reel-changing rotating assembly to prevent rotation, reducing vibration during high-speed operation and increasing the stability of fiber winding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the automatic tray changing system of the optical fiber screening machine in an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the active end component in an embodiment of the present invention.

[0018] Figure 3 This is a perspective view of the active end positioning slider in an embodiment of the present invention.

[0019] Figure 4 This is a front view of the active end positioning slider in an embodiment of the present invention.

[0020] Figure 5 This is a front view of the passive end component in an embodiment of the present invention.

[0021] Figure 6 This is a rear view of the passive end component in an embodiment of the present invention.

[0022] Figure 7 This is a perspective view of the passive end component without the passive end clamping plate assembly in an embodiment of the present invention.

[0023] Figure 8This is a schematic diagram of the passive end plate-changing rotating assembly in an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the passive end positioning ring in an embodiment of the present invention.

[0025] Figure 10 This is a schematic diagram of the passive shaft rotation assembly in an embodiment of the present invention.

[0026] Figure 11 This is a schematic diagram of the passive shaft in an embodiment of the present invention.

[0027] Figure 12 This is a cross-sectional view of the passive shaft in an embodiment of the present invention.

[0028] Figure 13 This is a schematic diagram of the structure of the disc tensioning assembly in an embodiment of the present invention.

[0029] Figure 14 This is a cross-sectional view of the disc tensioning assembly in an embodiment of the present invention.

[0030] Figure 15 This is a schematic diagram of the structure of the expansion block in an embodiment of the present invention.

[0031] Figure 16 This is a schematic diagram of the passive end clamping plate assembly in an embodiment of the present invention.

[0032] Figure 17 This is a schematic diagram of the passive anti-rotation component in an embodiment of the present invention.

[0033] Figure 18 This is a schematic diagram of the passive anti-rotation component in the open state in an embodiment of the present invention.

[0034] Figure 19 This is a schematic diagram of the passive end locking assembly in an embodiment of the present invention.

[0035] Figure 20 This is a schematic diagram of the passive end locking assembly with the push rod limiting block removed in an embodiment of the present invention.

[0036] Figure 21 This is a schematic diagram of the push rod limiting block in an embodiment of the present invention.

[0037] Figure 22 This is a cross-sectional view of the push rod limiting block in an embodiment of the present invention.

[0038] Figure 23 This is a schematic diagram of the positioning piston in an embodiment of the present invention.

[0039] Figure 24 This is a schematic diagram of the push rod in an embodiment of the present invention.

[0040] Figure 25 This is a front view of the passive locking component in its working state in an embodiment of the present invention.

[0041] Figure 26 This is a rear view of the passive locking assembly in its working state in an embodiment of the present invention.

[0042] Figure 27 This is a schematic diagram of the structure of the take-up support component in an embodiment of the present invention.

[0043] Figure 28 This is a schematic diagram of the structure of the positioning block at the active end in an embodiment of the present invention.

[0044] Figure 29 This is a schematic diagram of the structure of the optical fiber tray in an embodiment of the present invention.

[0045] Figure 30 yes Figure 29 A schematic diagram of direction A.

[0046] Figure 31 This is a schematic diagram of the automatic tray changing system of the fiber optic screening machine during the initial tray loading in an embodiment of the present invention.

[0047] Figure 32 This is a schematic diagram of the automatic reel changing system of the optical fiber sorting machine during optical fiber winding in an embodiment of the present invention.

[0048] Figure 33 This is a schematic diagram of the fiber-clamping structure of the take-up clamp in an embodiment of the present invention.

[0049] Figure 34 yes Figure 33 A partial schematic diagram of K.

[0050] In the diagram: 1-Active end component; 2-Passive end component; 3-Take-up support component; 4-Fiber optic cable tray; 1-1-Active end drive motor; 1-2-Active end slide table; 1-3-Active end chuck; 1-4-Active shaft; 1-5-Active end anti-rotation block; 1-6-Active end chuck positioning sensor; 1-7-Disc clamping cylinder; 1-8-Active end positioning cylinder; 1-9-Active end positioning upper slider; 1-3-1-Active end chuck positioning hole; 2-1- Passive end mounting base; 2-2- Passive end disc changing rotation assembly; 2-3- Passive shaft rotation assembly; 2-4- Passive end clamping disc assembly; 2-5- Passive end anti-rotation assembly; 2-6- Passive end locking assembly; 2-7- Passive end anti-rotation release cylinder; 2-8- Disc clamping cylinder fixing block; 2-2-1- Passive end disc changing drive motor; 2-2-2- Reducer; 2-2-3- Passive end positioning ring; 2-2-4- Passive end rotating arm; 2-2-3-1- Positioning ring locking bevel; 2-2-3-2- Mounting hole; 2-3-1- Passive shaft; 2-3-2-Disc tensioning assembly; 2-3-3-Passive base; 2-3-1-1-Allowing groove; 2-3-1-2-Disc tensioning assembly positioning hole; 2-3-1-3-Passive shaft friction circle; 2-3-1-4-Passive shaft rotation assembly positioning groove; 2-3-2-1-Tensioning block; 2-3-2-2-Disc tensioning screw; 2-3-2-3-Disc tensioning compression spring; 2-3-2-4-Disc tensioning locking nut; 2-3-2-1-1-Easy-to-insert chamfer; 2-3-2-1-2-Guide cylinder; 2-3-2-1-3-Stepped hole; 2-4-1-Passive end clamping disc; 2-4-2-Take-up clamp; 2-4-3-Passive end anti-rotation block; 2-4-1-1-Fiber optic cable entry bevel; 2-5-1- Passive end anti-rotation block mounting plate; 2-5-2- Passive end friction block; 2-5-3- Guide rail assembly; 2-5-4- Passive end anti-rotation assembly compression spring; 2-5-5- Guide screw; 2-5-6- Guide screw positioning block; 2-6-1-Push rod cover plate; 2-6-2-Push rod limit block; 2-6-3-Push rod; 2-6-4-Push roller; 2-6-5-Positioning piston; 2-6-6-Positioning pin; 2-6-7-Locking positioning tension spring; 2-6-8-Tension spring fixing screw; 2-6-9-Locking positioning push cylinder; 2-6-10-Positioning pin locking set screw; 2-6-2-1-Positioning piston guide hole; 2-6-2-2-Positioning pin guide hole; 2-6-2- 3-Push rod limiting groove; 2-6-5-1-Locking positioning inclined surface; 2-6-5-2-Positioning piston guide cylinder; 2-6-5-3-Positioning pin mounting boss; 2-6-5-4-Positioning pin mounting through hole; 2-6-5-5-Threaded hole; 2-6-3-1-Push rod reset surface; 2-6-3-2-Push rod locking boss; 2-6-3-3-Push rod front limiting surface; 2-6-3-4-Push rod rear limiting surface; 2-6-3-5-Push rod side limiting surface; 3-1-Support base plate; 3-2-Support feet; 3-3-Active end support profile; 3-4-Cable take-up guide slider assembly; 3-5-Active end lower positioning block; 4-1-Main take-up groove; 4-2-Auxiliary take-up groove; 4-3-Figure-eight notch; 4-4-Main flange; 4-5-Auxiliary flange; 4-6-Anti-rotation groove for the disc; 4-7-Shadow shaft hole. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0052] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0054] Example 1 An automatic tray changing system for an optical fiber screening machine. Figures 1-34 As shown, it includes an active end component 1, a passive end component 2, and a take-up support component 3. The active end component 1 and the passive end component 2 are arranged opposite to each other on the take-up support component 3. The active end component 1 or the passive end component 2 is slidably connected to the take-up support component 3. A push-pull locking mechanism is connected between the active end component 1 and the passive end component 2. The active end component 1 includes an active end base disposed on the take-up support component 3, an active shaft 1-4 disposed laterally on the active end base, and a main rotation drive source connected to the active shaft 1-4. The main rotation drive source is used to drive the active shaft 1-4 to rotate, and an active end chuck 1-3 is provided on the active shaft 1-4. Passive end component 2 includes a passive end mounting base 2-1 mounted on the take-up support component 3 and a passive end changing disc rotating assembly 2-2 mounted on the passive end mounting base 2-1. Multiple passive shaft rotating assemblies 2-3 are circumferentially distributed along the rotation center of the passive end rotating arm on the passive end changing disc rotating assembly 2-2. A passive end anti-rotation assembly 2-5 is provided on one side of each passive shaft rotating assembly 2-3. The passive end changing disc rotating assembly 2-2 can drive the passive shaft rotating assemblies 2-3 to rotate around a rotation center. Each passive shaft rotating assembly 2-3 includes a passive shaft, and each passive shaft is provided with a passive end clamping disc assembly 2-4. The passive shaft rotates to the fiber-threading position of the clamping disc. The passive shaft of component 2-3 is arranged opposite to the active shaft 1-4 on the same straight line. A passive end locking component 2-6 is provided on one side of the passive end rotating component 2-2. The passive end locking component 2-6 is used to lock the passive end rotating component 2-2 to prevent it from rotating. When threading the fiber onto the plate, the push-pull locking mechanism pulls the active end component 1 and the passive end component 2 closer together, so that the fiber plate located at the fiber threading position of the clamping plate is threaded into the plate by the active shaft and the passive shaft from both sides. The passive end clamping plate component 2-4 and the active end clamping plate 1-3 clamp the fiber plate at this position from both sides. The main rotation drive source drives the fiber plate located at the fiber threading position of the clamping plate to rotate through the active shaft 1-4 for threading the fiber onto the plate.

[0055] Example 2 Based on Example 1, the take-up support component is further defined, resulting in Example 2 having even better performance.

[0056] The take-up support component 3 is provided with a take-up guide slider assembly 3-4, and the active end base includes an active end slide 1-2 disposed on the take-up guide slider assembly 3-4, and the active shaft 1-4 is disposed on the active end slide 1-2; The push-pull locking mechanism includes a disc clamping cylinder 1-7 and a disc clamping cylinder fixing block 2-8. The disc clamping cylinder 1-7 is mounted on the active end base, and the movable end of the disc clamping cylinder 1-7 is connected to the passive end mounting base 2-1 through the disc clamping cylinder fixing block 2-8. The extension and retraction of the disc clamping cylinder 1-7 can drive the active end slide table 1-2 to move back and forth along the take-up guide rail slider assembly 3-4. The push-pull locking mechanism also includes an active end positioning cylinder 1-8 and an active end positioning upper slider 1-9. The active end positioning cylinder 1-8 is mounted on the active end slide 1-2, and the active end positioning upper slider 1-9 is mounted on the movable end of the active end positioning cylinder 1-8. An active end lower positioning block 3-5 is fixed on the take-up support component 3. When the active end slide 1-2 moves along the take-up guide rail slider assembly 3-4 toward the passive end mounting base 2-1 to clamp the fiber optic reel, the active end positioning cylinder 1-8 drives the active end positioning upper slider 1-9 to extend, so that the active end positioning upper slider 1-9 fits tightly with the passive end mounting base 2-1, thereby locking the position of the active end slide 1-2.

[0057] Furthermore, the main rotation drive source includes an active end drive motor 1-1, and the output end of the active end drive motor 1-1 is connected to the active shaft 1-4; The active end slide 1-2 is equipped with an active chuck positioning sensor 1-6, whose extension distance can be adjusted by its own thread; the active end chuck 1-3 has an active end chuck positioning hole 1-3-1, and the active end chuck positioning sensor 1-6 is close to the active end chuck 1-3 and can detect the active end chuck positioning hole 1-3-1 on the active end chuck; during operation, the active end component rotates the active shaft 1-4, which is detected by the active chuck positioning sensor 1-6, so that the active end chuck 1-3 is accurately positioned, which facilitates the insertion of the active shaft and the active chuck into the fiber optic tray for tray loading. At this time, the two active end anti-rotation blocks 1-5 are vertically distributed. The active end clamping plate 1-3 is provided with an active end anti-rotation block 1-5, and the passive end clamping plate is provided with a passive end anti-rotation block 2-4-3; there are two active end anti-rotation blocks 1-5 on the active end clamping plate 1-3, which are symmetrically arranged on the active end clamping plate 1-3; there are two passive end anti-rotation blocks 2-4-3 on the passive end clamping plate, which are symmetrically arranged on the passive end clamping plate.

[0058] Furthermore, the passive end clamping plate assembly 2-4 includes a passive end clamping plate 2-4-1, which is sleeved on the passive shaft. The passive end clamping plate 2-4-1 is provided with a take-up clamp 2-4-2. The edge of the passive end clamping plate where the take-up clamp is installed is provided with a bevel. The bevel facilitates the smooth winding of the optical fiber into the optical fiber reel when rotating and winding the optical fiber.

[0059] Furthermore, there are two take-up clamps 2-4-2, which are symmetrically arranged on the passive end clamping plate 2-4-1.

[0060] The take-up clamp includes a take-up clamp mounting base, a take-up clamp piston, a take-up clamp piston fixing block, and a take-up clamp spring. The take-up clamp is fixed to the first take-up clamp plate via the take-up clamp mounting base. The take-up clamp spring is built into the take-up clamp mounting base, which has a through hole. One end of the take-up clamp spring contacts the first take-up clamp plate, and the other end contacts the take-up clamp piston, and is in a compressed state, so that the upper end of the take-up clamp piston is tightly attached to the take-up clamp mounting base. The take-up clamp piston fixing block is fixedly connected to the take-up clamp piston and protrudes from the take-up clamp mounting base. When the take-up clamp piston fixing block is pressed down by the clamp release assembly, the take-up clamp piston and the take-up clamp piston fixing block move downward together, thus compressing the take-up clamp spring.

[0061] Example 3 Based on Embodiment 1 or 2, the passive end plate changing rotation assembly is further defined, and Embodiment 3, after the definition is defined, has even better performance.

[0062] The passive end disc changing rotation assembly 2-2 includes a passive end disc changing drive motor 2-2-1, a reducer 2-2-2, and a passive end rotating arm 2-2-4. The passive end disc changing drive motor 2-2-1 and the reducer 2-2-2 are mounted on the passive end mounting base 2-1. The output end of the reducer 2-2-2 is connected to the middle of the passive end rotating arm 2-2-4. There are two passive shaft rotating assemblies 2-3, which are respectively located at both ends of the passive end rotating arm 2-2-4. Two mounting holes are provided at both ends of the passive end rotating arm 2-2-4. The passive shafts of the two passive shaft rotating assemblies 2-3 are respectively set in the two mounting holes. A passive end positioning ring is sleeved between the passive shaft and the mounting hole, and the passive shaft can rotate within the mounting hole. The passive end disc changing drive motor 2-2-1 drives the passive shaft rotating assembly 2-3 to rotate around the connecting shaft between the reducer and the passive end rotating arm 2-2-4 as the rotation center through the reducer 2-2-2.

[0063] Furthermore, a passive anti-rotation release cylinder 2-7 is provided on one side of the fiber threading position of the clamp; The passive end anti-rotation assembly 2-5 includes a passive end anti-rotation block mounting plate 2-5-1, a passive end friction block 2-5-2, a guide rail assembly 2-5-3, a passive end anti-rotation assembly compression spring 2-5-4, a guide screw 2-5-5, and a guide screw positioning block 2-5-6. The guide rail assembly 2-5-3 is mounted on the passive end rotating arm 2-2-4 of the passive end disc changing rotation assembly. The passive end anti-rotation block mounting plate 2-5-1 is set on a slider on the guide rail assembly 2-5-3, and can slide along the guide rail assembly 2-5-3 via the slider. The passive end anti-rotation block mounting plate 2-5-1 has a through hole through which the passive shaft passes. A gap is left between the passive shaft and the inner ring of the through hole of the passive end anti-rotation block mounting plate 2-5-1. The end friction block 2-5-2 is mounted on the passive end anti-rotation block mounting plate 2-5-1. The passive end friction block 2-5-2 has an open slot (the open slot is a semi-circular hole, and its diameter is the same as the diameter of the friction circle 2-3-1-3 of the passive shaft) near the passive shaft end. The guide screw positioning block 2-5-6 is fixed to the passive end rotating arm 2-2-4 of the passive end changing disc rotating assembly. One end of the guide screw 2-5-5 passes sequentially through the guide screw positioning block 2-5-6 and the passive end anti-rotation assembly compression spring 2-5-4, and is threadedly connected to the passive end anti-rotation block mounting plate 2-5-1. The guide screw 2-5-5, along with the passive end anti-rotation block mounting plate 2-5-1, can move relative to the guide screw positioning block along the guide rail assembly 2-5-3. 2-5-6 moves back and forth, and the passive end anti-rotation component compression spring 2-5-4 is sleeved on the guide screw 2-5-5. One end of the passive end anti-rotation component compression spring 2-5-4 contacts the passive end anti-rotation block mounting plate 2-5-1, and the other end contacts the guide screw positioning block 2-5-6. The passive end anti-rotation component compression spring 2-5-4 is in a compressed state. The spring force of the passive end anti-rotation component compression spring 2-5-4 causes the passive end anti-rotation block mounting plate 2-5-1 to move closer to the passive shaft rotation component, which drives the passive end friction block 2-5-2 to press against the friction circle 2-3-1-3 of the passive shaft, so that the passive shaft rotation component 2-3 itself cannot rotate. The passive end anti-rotation release cylinder 2-7 is set at the fiber threading position of the clamping plate. On the outside of the passive end anti-rotation block mounting plate 2-5-1, when the passive end anti-rotation release cylinder 2-7 extends and acts on the passive end anti-rotation block mounting plate 2-5-1 in the fiber-threading position of the clamping plate, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 move back against the spring force, and the passive end friction block 2-5-2 does not contact the passive shaft, allowing the passive shaft to rotate; when the passive end anti-rotation release cylinder 2-7 retracts and disengages from the passive end anti-rotation block mounting plate 2-5-1 in the fiber-threading position of the clamping plate, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2, under the action of the spring force, make the passive end friction block 2-5-2 come into close contact with the passive shaft, preventing the passive shaft in the fiber-threading position of the clamping plate from rotating;After the entire fiber optic disc is installed, when the passive end disc-changing rotating assembly 2-2 rotates, the passive shaft rotating assembly 2-3 itself cannot rotate. Only under a relatively large force can the passive shaft rotating assembly 2-3 rotate. Under the action of the passive end anti-rotation assembly compression spring 2-5-4, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 move together along the guide rail assembly, so that the passive end friction block 2-5-2 can just lock the friction circle of the passive shaft, making it impossible for the passive shaft rotating assembly 2-3 to rotate under a small force. Furthermore, the outer edge of the semi-circular hole on one side of the passive end friction block 2-5-2 is aligned with the edge line of the positioning groove 2-3-1-4 of the passive shaft rotating assembly.

[0064] When the fiber optic screening machine needs to rewind and rotate, the passive end anti-rotation release cylinder 2-7 extends, pushing the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 to move, so that the passive end friction block 2-5-2 does not contact the friction circle of the passive shaft, and the passive end anti-rotation component compression spring 2-5-4 is further compressed, at which time the passive shaft can rotate freely; when the rewinding is completed and the machine stops, the passive end anti-rotation release cylinder 2-7 retracts, and under the action of the passive end anti-rotation component compression spring 2-5-4, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 reset together, so that the passive end friction block 2-5-2 can just lock the friction circle of the passive shaft.

[0065] Furthermore, the passive shaft rotation assembly 2-3 also includes a disc expansion assembly 2-3-2 and a passive base 2-3-3. The passive shaft 2-3-1 is mounted in the passive base 2-3-3 via bearings. The passive shaft 2-3-1 is provided with a passive shaft friction circle 2-3-1-3 and a disc expansion assembly positioning hole 2-3-1-2 along the axial direction. The disc expansion assembly positioning hole 2-3-1-2 is located near the outer end of the passive shaft 2-3-1. The disc expansion assembly 2-3-2 is installed in the disc expansion assembly positioning hole 2-3-1-2 of the passive shaft 2-3-1. When unloading the fiber optic disc, the force pulling out the fiber optic disc is greater than the expansion of the disc expansion assembly on the fiber optic disc, and both sides of the expansion block have chamfers to facilitate the unloading of the fiber optic disc. The passive shaft friction circle 2-3-1-3 is provided with a passive shaft rotation component positioning groove 2-3-1-4. The passive shaft friction circle 2-3-1-3 is used to contact the passive end friction block 2-5-2 of the passive end anti-rotation component 2-5. The passive shaft rotation component positioning groove 2-3-1-4 is used to contact the passive end friction block 2-5-2 of the passive end anti-rotation component 2-5 to facilitate better positioning. The passive shaft rotation component positioning groove 2-3-1-4 is relatively small in size.

[0066] Furthermore, the passive end locking assembly 2-6 is arranged on the passive end rotating arm of the passive end changing disc rotating assembly 2-2, located behind the passive end positioning ring at the fiber threading position of the clamping disc; the passive end locking assembly 2-6 includes a push rod cover plate 2-6-1, a push rod limiting block 2-6-2, a positioning piston 2-6-5, and a passive end locking push-pull mechanism; the push rod cover plate 2-6-1 covers the push rod limiting block 2-6-2, and the push rod limiting block 2-6-2 has a positioning piston guide hole 2-6-2-1 along the passive shaft axis direction, and the positioning piston 2-6-5 is disposed in the positioning piston guide hole 2-6-2-1, thus locking the passive end. The fixed push-pull mechanism is connected to the positioning piston 2-6-5; the passive end locking push-pull mechanism drives the positioning piston 2-6-5 to move back and forth along the positioning piston guide hole 2-6-2-1, so that one end of the positioning piston 2-6-5 extends out from the push rod limit block 2-6-2, passes through the passive end mounting base 2-1, and presses against the passive end positioning ring on the passive end rotating arm of the passive end changing plate rotating assembly 2-2 at the fiber threading position of the clamping plate, thus locking the passive end changing plate rotating assembly 2-2, or causing one end of the positioning piston 2-6-5 to retract and disengage from the passive end positioning ring on the passive end rotating arm of the passive end changing plate rotating assembly 2-2, thereby releasing the lock.

[0067] Furthermore, the passive end locking push-pull mechanism includes a push rod 2-6-3, a push roller 2-6-4, a positioning pin 2-6-6, and a locking positioning push cylinder 2-6-9. The inner end of the positioning piston 2-6-5 is connected to the push roller 2-6-4 through the positioning pin 2-6-6. The push rod 2-6-3 is vertically arranged on one side of the push roller 2-6-4 and is connected to the locking positioning push cylinder 2-6-9. On the side of the push rod 2-6-3 near the push roller 2-6-4, push rod repetitions are arranged sequentially along the extension and retraction direction of the locking positioning push cylinder 2-6-9. The heights of surface 2-6-3-1, push rod locking boss 2-6-3-2, push rod front limit surface 2-6-3-3, push rod reset surface 2-6-3-1, push rod locking boss 2-6-3-2, and push rod front limit surface 2-6-3-3 increase sequentially (where push rod reset surface 2-6-3-1 and push rod front limit surface 2-6-3-3 are both planar). There is a rounded transition between the push rod reset surface and the push rod locking boss, and between the push rod locking boss and the push rod front limit surface. The two ends of the positioning pin 2-6-6 protrude from both sides of the push rod limit block 2-6-2. The locking and positioning tension spring 2-6-7 is connected to both sides of the push rod cover plate 2-6-1 and the push rod limiting block 2-6-2. The push roller 2-6-4 can rotate freely. The locking and positioning push cylinder 2-6-9 drives the push rod 2-6-3 to move up and down within the push rod limiting block 2-6-2, so that the push roller 2-6-4 can smoothly roll between the push rod reset surface, the push rod locking boss, and the push rod front limiting surface 2-6-3. Due to the different heights of the push rod reset surface, the push rod locking boss, and the push rod front limiting surface, when the push rod 2-6-3 moves upward, the push rod front limiting surface... When the push roller 2-6-4 contacts the push roller, the push roller 2-6-4 pushes the positioning piston 2-6-5 out of the positioning piston guide hole 2-6-2-1 of the push rod limit block 2-6-2, pressing down the passive shaft rotation assembly 2-3 locked in the fiber threading position of the chuck. When the push rod 2-6-3 moves down, the locking positioning tension spring 2-6-7 drives the push roller 2-6-4 and the positioning piston 2-6-5 to retract, so that the push roller 2-6-4 contacts the push rod reset surface 2-6-3-1, and the positioning piston 2-6-5 disengages from the passive end positioning ring on the passive end rotating arm of the passive end changing plate rotation assembly 2-2.

[0068] Example 4 An automatic disc changing method defined based on Example 1, 2, or 3.

[0069] An automatic tray changing method for an automatic tray changing system using the fiber optic screening machine described above includes the following steps: Step 1: When initially placing the fiber optic tray, the push-pull locking mechanism is in the open state, the active end component 1 and the passive end component 2 are in a far apart position, the passive end locking component 2-6 locks the passive end tray changing rotation component 2-2 to prevent the passive end tray changing rotation component 2-2 from rotating, and the passive end anti-rotation component 2-5 locks and jams the passive shaft to prevent the passive shaft from rotating. Step 2: Install the fiber optic tray onto the passive shaft rotating assembly 2-3 in the installation position (at this time, the passive shaft is inserted into the center hole of the fiber optic tray from one side). The passive shaft of the passive shaft rotating assembly 2-3 in the installation position is not concentric with the active shaft. The passive end locking assembly 2-6 releases the passive end tray changing rotating assembly 2-2. The fiber optic tray on the passive shaft rotating assembly 2-3 in the installation position is rotated to the fiber insertion position by the passive end tray changing rotating assembly 2-2. Step 3: The passive end locking assembly 2-6 locks the passive end positioning ring 2-2-3 on the passive end rotating arm 2-2-4 of the passive end changing plate rotating assembly 2-2, which is in the fiber threading position of the clamping plate, so that the active shaft is inserted into the center hole of the fiber optic tray in the fiber threading position of the clamping plate from the other side. The active end clamping plate 1-3 on the active shaft and the passive end clamping plate 2-4-1 on the passive shaft clamp the fiber optic tray from both sides. The active end component 1 and the passive end component 2 are in the retracted position, and the position between the active end component 1 and the passive end component 2 is locked by the push-pull locking mechanism. Step 4: Thread the optical fiber onto the optical fiber reel, unlock the passive anti-rotation component 2-5, and activate the active rotation drive to rotate the active shaft, causing the optical fiber reel to rotate and wind the optical fiber onto the reel. Simultaneously, install an empty optical fiber reel onto the passive shaft rotation component 2-3 at the installation position, or replace a full optical fiber reel with an empty one (if a full optical fiber reel is already installed at the installation position, it must be removed before installing an empty one). Step 5: After the fiber is fully wound onto the fiber optic reel, the active shaft stops rotating. The passive end locking component 2-6 releases the passive end reel changing rotation component 2-2, and the passive end anti-rotation component 2-5 locks and holds the passive shaft. The passive end reel changing rotation component 2-2 drives the fully wound fiber optic reel to rotate from the clamping position to the installation position. At the same time, the empty fiber optic reel installed in the installation position is rotated to the clamping position. Repeat steps 3-5 until the fiber optic tray loading task is completed.

[0070] The working principle of this invention: An automatic tray changing system and method for an optical fiber screening machine, such as... Figure 1-34 As shown, the device includes an active end component 1, a passive end component 2, a take-up support component 3, and an optical fiber reel 4. After the optical fiber is threaded onto the take-up clamp by the automatic fiber threading system, the device begins to rotate clockwise to take up the optical fiber. Figure 1This indicates that the active end component 1 is not clamped. The active end component 1 and the passive end component 2 are mounted on the take-up support component 3. The active end component 1 can slide via the take-up support component guide rail slider assembly 3-4 on the take-up support component 3. One end of the disc clamping cylinder 1-7 in the active end component 1 is mounted on the active end, and the other end is mounted on the passive end component 2. The active shaft 1-4 in the active end component 1 is coaxial with the inner passive shaft 2-3-1 in the passive end component 2.

[0071] The active end component 1 includes an active end drive motor 1-1, an active end slide 1-2, an active end clamping plate 1-3, an active shaft 1-4, an active end anti-rotation block 1-5, an active clamping plate positioning sensor 1-6, a clamping cylinder 1-7, an active end positioning cylinder 1-8, and an active end positioning upper slider 1-9. Figure 2 As shown. The active end slide 1-2 is mounted on the guide rail slider assembly 3-4 of the take-up support component. The active shaft 1-4 is mounted on the active end slide 1-2 via bearings, allowing it to rotate freely. The active end drive motor 1-1 is connected to the active shaft 1-4 via a coupling. The active end chuck 1-3 is fixed to the active shaft 1-4. Two active end anti-rotation blocks 1-5 are symmetrically mounted on the active end chuck 1-3, and the active end chuck 1-3 and the two active end anti-rotation blocks 1-5 rotate together with the active shaft 1-4. The active chuck positioning sensor 1-6 is fixed to the active end slide 1-2, and its extension distance can be adjusted via its own thread. The cylinder body of the disc clamping cylinder 1-7 is fixed to the active end slide 1-2, and the extended end of the disc clamping cylinder 1-7 is fixed to the passive end component 2. The cylinder body of the active end positioning cylinder 1-8 is fixed on the active end slide table. The extended end of the active end positioning cylinder 1-8 is connected to the active end positioning upper slider 1-9, which can realize the up and down movement of the active end positioning upper slider 1-9.

[0072] like Figure 2 As shown, the active end clamping plate 1-3 has two active end clamping plate positioning holes 1-3-1. The active end clamping plate positioning sensor 1-6 is close to the active end clamping plate 1-3 and can detect the positioning holes 1-3-1 on the active end clamping plate. The two active end anti-rotation blocks 1-5 are perpendicular to the two active end clamping plate positioning holes 1-3-1. During operation, the active end component 1 rotates the active shaft 1-4. When the active end clamping plate positioning sensor 1-6 detects the active end clamping plate positioning holes 1-3-1, the rotation stops, so that the two active end anti-rotation blocks 1-5 are in a perpendicular state.

[0073] like Figures 3-4 As shown, the active end positioning slider 1-9 has an inclined surface on one side, and the inclined surface has a certain inclination angle θ with the vertical direction. μ≥tanθ can achieve self-locking phenomenon, where μ is the static friction coefficient. In this embodiment, θ=arctanμ is taken.

[0074] like Figures 5-6 As shown, the passive end component 2 includes a passive end mounting base 2-1, a passive end disc changing rotation assembly 2-2, a passive shaft rotation assembly 2-3, a passive end clamping disc assembly 2-4, a passive end anti-rotation assembly 2-5, a passive end locking assembly 2-6, a passive end anti-rotation release cylinder 2-7, and a disc clamping cylinder fixing block 2-8. The passive end mounting base 2-1 is fixed on the take-up support component 3, the passive end disc changing rotation assembly 2-2 is mounted on one side of the passive end mounting base 2-1, and the passive end locking assembly 2-6 is mounted on the other side of the passive end mounting base 2-1.

[0075] The passive end component 2 includes two passive shaft rotating assemblies 2-3, two passive end clamping assemblies 2-4, and two passive end anti-rotation assemblies 2-5. The two passive shaft rotating assemblies 2-3 are respectively installed at both ends of the passive end changing plate rotating assembly 2-2. The two passive end clamping assemblies 2-4 are respectively installed on the two passive shaft rotating assemblies 2-3. The passive end clamping assemblies 2-4 and the passive shaft 2-3-1 rotate together, with the rotation center of the inner passive shaft rotating assembly 2-3 coinciding with the rotation center of the driving shaft 1-4. The two passive end anti-rotation assemblies 2-5 are respectively installed on both sides of the passive end changing plate rotating assembly 2-2, and the two passive end anti-rotation assemblies 2-5 are placed symmetrically. Figure 5 As shown in the figure, the passive end clamping plate assembly 2-4 is hidden. The passive end anti-rotation release cylinder 2-7 is mounted on the passive end mounting base 2-1, at a certain distance from the passive end anti-rotation assembly 2-5. The disc clamping cylinder fixing block 2-8 is mounted on the passive end mounting base 2-1 and connected to one end of the disc clamping cylinder 1-7.

[0076] like Figure 7 As shown, the passive end disc-changing rotation assembly 2-2 includes a passive end disc-changing drive motor 2-2-1, a reducer 2-2-2, two passive end positioning rings 2-2-3, and a passive end rotating arm 2-2-4. The passive end disc-changing drive motor 2-2-1 and the passive end rotating arm 2-2-4 are respectively mounted on both sides of the reducer 2-2-2 and fixed to the passive end mounting base 2-1 via the reducer 2-2-2. The passive end rotating arm 2-2-4 has a symmetrical structure, and the reducer 2-2-2 is installed in the middle of the passive end rotating arm 2-2-4. The reducer 2-2-2 reduces the speed of the passive end disc-changing drive motor 2-2-1, increases the torque of the passive end disc-changing drive motor 2-2-1, and improves the accuracy of the passive end disc-changing drive motor 2-2-1. Figure 8 As shown, the passive end rotating arm 2-2-4 is symmetrical about the center, the reducer 2-2-2 is installed at the center of the passive end rotating arm 2-2-4, and two passive end positioning rings 2-2-3 are respectively installed at both ends of the passive end rotating arm 2-2-4. Figure 9As shown, the outer center hole of the passive end positioning ring has a certain angle, which is the positioning ring locking slope 2-2-3-1. The passive end positioning ring is installed on the passive end rotating arm 2-2-4 through the mounting hole 2-2-3-2, as shown in the figure. Figure 9 As shown. The passive end rotating arm is driven to rotate by the passive end disc changing drive motor. The passive shaft rotating assembly 2-3 is set on the passive end rotating arm through the passive end positioning ring.

[0077] like Figure 10 As shown, the passive shaft rotation assembly 2-3 includes a passive shaft 2-3-1, a disc tensioning assembly 2-3-2, and a passive base 2-3-3. Figure 5 As shown, the passive end component 2 contains two passive shaft rotation assemblies 2-3, which are respectively mounted on both sides of the passive end rotating arm 2-2-4. Figure 8 As shown, the passive shaft 2-3-1 is mounted on the rotary bearing in the passive base 2-3-3. The bearing is not shown in the figure. The disc tensioning assembly 2-3-2 is mounted on the passive shaft 2-3-1.

[0078] like Figures 11-12 As shown, the passive shaft 2-3-1 includes two clearance grooves 2-3-1-1, a positioning hole 2-3-1-2 for the disk tensioning assembly, a passive shaft friction circle 2-3-1-3, and a positioning groove 2-3-1-4 for the passive shaft rotation assembly. The outer diameter of the positioning fiber disk on the passive shaft 2-3-1 is the same as the outer diameter of the positioning fiber disk on the active shaft 1-4, and both are slightly smaller than the disk shaft hole 4-7. Clearance grooves 2-3-1-1 are provided at both ends of the positioning hole 2-3-1-2 for the disk tensioning assembly. The two clearance grooves 2-3-1-1 are symmetrically arranged, and are rectangular or square, communicating with the positioning hole 2-3-1-2 for the disk tensioning assembly. The positioning groove 2-3-1-4 for the passive shaft rotation assembly is located on the friction circle 2-3-1-3. To ensure precise rotational positioning of the passive shaft rotation assembly 2-3, the positioning groove 2-3-1-4 is designed to be relatively small.

[0079] like Figures 13-14As shown, the disc tensioning assembly 2-3-2 includes two tensioning blocks 2-3-2-1, a disc tensioning screw 2-3-2-2, a disc tensioning compression spring 2-3-2-3, and a disc tensioning locking nut 2-3-2-4. One end of the disc tensioning screw 2-3-2-2 passes through the two tensioning blocks 2-3-2-1 in sequence and is connected to the disc tensioning locking nut 2-3-2-4. The disc tensioning compression spring 2-3-2-3 is sleeved on the disc tensioning screw, and both ends of the disc tensioning compression spring 2-3-2-3 are respectively connected and in contact with the two tensioning blocks 2-3-2-1. To ensure that the tray expansion locking nut 2-3-2-4 can be securely locked onto the tray expansion screw 2-3-2-2, and that the tray expansion compression spring 2-3-2-3 is not fully compressed, the tray expansion screw 2-3-2-2 is designed as a stepped screw. After the tray expansion locking nut 2-3-2-4 and the tray expansion screw 2-3-2-2 are locked together, the distance between the tops of the two expansion blocks 2-3-2-1 is slightly larger than the diameter of the passive shaft 2-3-1 where the fiber optic tray 4 is placed. After the fiber optic tray 4 is inserted into the passive shaft 2-3-1, the two expansion blocks 2-3-2-1 can tightly push the fiber optic tray 4 outward. To avoid interference with the fiber optic tray 4, both the tray expansion screw 2-3-2-2 and the tray expansion locking nut 2-3-2-4 are hexagonal or Phillips head structures.

[0080] like Figure 15 As shown, the expansion block 2-3-2-1 includes a chamfer 2-3-2-1-1, a guide cylinder 2-3-2-1-2, and a stepped hole 2-3-2-1-3. The expansion block 2-3-2-1 has a centrally symmetrical structure. To facilitate installation and insertion of the fiber optic tray 4 into the center hole, both sides of the expansion block 2-3-2-1 have chamfers 2-3-2-1-1, which facilitates the insertion of the fiber optic tray into the passive shaft. The upper part of the expansion block 2-3-2-1 has the same shape as the passive shaft clearance groove 2-3-1-1, and is consistent with the passive shaft clearance groove 2-3-1-1. The gap between 1 and 2 is small, which restricts the rotation of the expansion block 2-3-2-1; there is a guide cylinder 2-3-2-1-2 under the expansion block 2-3-2-1, the diameter of the guide cylinder 2-3-2-1-2 matches the positioning hole 2-3-1-2 of the disc expansion assembly in the driven shaft, so that the guide cylinder 2-3-2-1-2 can only slide up and down in the positioning hole 2-3-1-2 of the disc expansion assembly, but cannot tilt; in order to install the disc expansion screw 2-3-2-2, there is a stepped hole 2-3-2-1-3 in the middle of the expansion block 2-3-2-1.

[0081] When installing the disc tensioning assembly 2-3-2, first place the disc tensioning compression spring 2-3-2-3 into the disc tensioning assembly positioning hole 2-3-1-2 of the driven shaft 2-3-1. The two tensioning blocks 2-3-2-1 are respectively installed into the two clearance grooves 2-3-1-1 in the driven shaft. The disc tensioning screw 2-3-2-2 passes through the intermediate stepped hole 2-3-2-1-3 of one of the tensioning blocks 2-3-2-1, the disc tensioning compression spring 2-3-2-3, and the stepped hole 2-3-2-1-3 of the other 2-3-2-1, and is locked by the disc tensioning locking nut 2-3-2-4. Since the tray tightening screw 2-3-2-2 is a stepped screw, it cannot be rotated further once the stepped thread is fully locked. Therefore, the distance between the two tightening blocks 2-3-2-1 can be controlled by the step length of the tray tightening screw 2-3-2-2. At this time, the tray tightening compression spring 2-3-2-3 is in a compressed state, thereby controlling the force required for the optical fiber tray 4 to pass through the tray tightening assembly 2-3-2 and the squeezing strength on the optical fiber tray 4. The guide cylinder 2-3-2-1-2 on the tightening block 2-3-2-1 restricts the tightening block 2-3-2-1 due to the positioning hole 2-3-1-2 of the tray tightening assembly and the passive shaft clearance groove 2-3-1-1, so that the tray tightening assembly 2-3-2 can only move up and down.

[0082] When the fiber optic reel 4 is inserted, the reel shaft hole 4-7 first contacts the chamfer 2-3-2-1-1 on one side of the tensioning block, and then it is further inserted. The two tensioning blocks 2-3-2-1 simultaneously compress the reel tensioning spring 2-3-2-3 inward. After the fiber optic reel 4 is in place, due to the elasticity of the reel tensioning spring 2-3-2-3, the two tensioning blocks 2-3-2-1 press the reel shaft hole 4-7 outward, thereby fixing the fiber optic reel 4 and preventing it from tilting due to unilateral force. This ensures that the reel shaft hole 4-7 is aligned with the center of the passive shaft 2-3-1. Furthermore, when the active end component 1 is opened, the fiber optic reel 4 will not be pulled out by the active end component 1 due to the squeezing action of the two tensioning blocks 2-3-2-1, and the reel will remain in the original position of the passive shaft 2-3-1.

[0083] like Figure 16 As shown, the passive end clamping disc assembly 2-4 includes a passive end clamping disc 2-4-1, two take-up clamps 2-4-2, and two passive end anti-rotation blocks 2-4-3. The two take-up clamps 2-4-2 and the two passive end anti-rotation blocks 2-4-3 are symmetrically mounted on the passive end clamping disc 2-4-1, and the two take-up clamps 2-4-2 are symmetrical about the center of the passive end clamping disc 2-4-1, as detailed below. Figure 16As shown, this facilitates dynamic balancing of the passive end clamping assembly 2-4 and allows the take-up clamp 2-4-2 to be positioned directly above the passive shaft rotation assembly 2-3 after a half-turn rotation. Two passive end anti-rotation blocks 2-4-3 can be inserted into the anti-rotation grooves 4-6 of the optical fiber reel, and the shape of the passive end anti-rotation blocks 2-4-3 matches that of the anti-rotation grooves 4-6. When the optical fiber reel 4 needs to stop quickly, the passive end anti-rotation blocks 2-4-3 block the obstruction, allowing the optical fiber reel 4 to stop together with the passive shaft rotation assembly 2-3 and the passive end clamping assembly 2-4, preventing wear from the passive end clamping disc 2-4-1 on the optical fiber reel 4. The passive end clamping disc 2-4-1 has a bevel 2-4-1-1 at the edge where the take-up clamp 2-4-2 is installed, facilitating smooth winding of the optical fiber into the optical fiber reel 4 during rotational take-up. The take-up clamp 2-4-2 contains a spring that clamps the optical fiber when opened.

[0084] like Figure 17 As shown, the passive end anti-rotation assembly 2-5 includes a passive end anti-rotation block mounting plate 2-5-1, a passive end friction block 2-5-2, a guide rail assembly 2-5-3, a passive end anti-rotation assembly compression spring 2-5-4, a guide screw 2-5-5, and a guide screw positioning block 2-5-6. Figure 7 As shown, the guide screw positioning block 2-5-6 and the guide rail assembly 2-5-3 are mounted on the passive end rotating arm 2-2-4 of the passive end changing disc rotating assembly 2-2. The passive end anti-rotation block mounting plate 2-5-1 is mounted on the slider on the guide rail assembly 2-5-3. In order to prevent the passive end anti-rotation block mounting plate 2-5-1 from contacting the passive shaft friction circle 2-3-1-3 when sliding along the guide rail assembly 2-5-3, one end of the passive end anti-rotation block mounting plate 2-5-1 has a through hole, the diameter of which is larger than the passive shaft friction circle 2-3-1-3 on the passive shaft rotating assembly 2-3.

[0085] like Figure 17 As shown, the passive end friction block 2-5-2 is mounted on the passive end anti-rotation block mounting plate 2-5-1. One side of the passive end friction block 2-5-2 has a semi-circular hole with a diameter matching the passive shaft friction circle 2-3-1-3. This allows for the generation of a large frictional force when the passive end friction block 2-5-2 contacts the passive shaft friction circle 2-3-1-3. Figure 17 As shown, the guide screw 2-5-5 passes through the guide screw positioning block 2-5-6 and the passive end anti-rotation component compression spring 2-5-4, and is locked onto the passive end anti-rotation block mounting plate 2-5-1. One end of the passive end anti-rotation component compression spring 2-5-4 contacts the passive end anti-rotation block mounting plate 2-5-1, and the other end contacts the guide screw positioning block 2-5-6, and the passive end anti-rotation component compression spring 2-5-4 is in a compressed state. Figure 7As shown, under the action of the passive end anti-rotation component compression spring 2-5-4, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 move together along the guide rail assembly 2-5-3, so that the passive end friction block 2-5-2 can just lock the passive shaft friction circle 2-3-1-3, and the outer edge of the semi-circular hole on one side of the passive end friction block 2-5-2 is just aligned with the edge line of the passive shaft rotation component positioning groove 2-3-1-4. By selecting a suitable passive end anti-rotation component compression spring 2-5-4, when the passive end friction block 2-5-2 is under the action of the passive end anti-rotation component compression spring 2-5-4, the passive end friction block 2-5-2 tightly holds the passive shaft friction circle 2-3-1-3. At this time, the passive shaft rotation component 2-3 itself cannot rotate, and even if the fiber optic tray 4 is full of fiber and the passive end tray changing rotation component 2-2 rotates, the passive shaft rotation component 2-3 itself cannot rotate; only under a larger action can the passive shaft rotation component 2-3 rotate.

[0086] like Figure 18 As shown, when the fiber optic screening machine needs to rotate the fiber winding, the passive anti-rotation release cylinder 2-7 extends, pushing the passive anti-rotation block mounting plate 2-5-1 and the passive friction block 2-5-2 to move, so that the passive friction block 2-5-2 does not contact the passive shaft friction circle 2-3-1-3. The passive anti-rotation component compression spring 2-5-4 is further compressed, and the passive shaft 2-3-1 can rotate freely. Since one end of the passive anti-rotation block mounting plate 2-5-1 has a through hole with a diameter larger than the passive shaft friction circle 2-3-1-3, the passive anti-rotation block mounting plate 2-5-1 will not contact the passive shaft friction circle 2-3-1-3. When the fiber winding is completed and the machine stops, the passive end anti-rotation release cylinder 2-7 retracts. Under the action of the passive end anti-rotation component compression spring 2-5-4, the passive end anti-rotation block mounting plate 2-5-1 and the passive end friction block 2-5-2 reset together, so that the passive end friction block 2-5-2 can just lock the passive shaft friction circle 2-3-1-3.

[0087] like Figures 19-20 As shown, the passive end locking assembly 2-6 includes a push rod cover plate 2-6-1, a push rod limiting block 2-6-2, a push rod 2-6-3, a push roller 2-6-4, a positioning piston 2-6-5, a positioning pin 2-6-6, a locking positioning tension spring 2-6-7, a tension spring fixing screw 2-6-8, a locking positioning push cylinder 2-6-9, and a positioning pin locking set screw 2-6-10. Figure 4 As shown, the passive end locking assembly 2-6 is fixed to the passive end mounting base 2-1 and is coaxial with the inner working position passive shaft rotation assembly 2-3. Due to spatial constraints, the locking positioning push cylinder 2-6-9 cannot be coaxial with the positioning piston 2-6-5.

[0088] like Figures 21-22As shown, the push rod limiting block 2-6-2 includes a positioning piston guide hole 2-6-2-1, a positioning pin guide hole 2-6-2-2, and a push rod limiting groove 2-6-2-3. The positioning piston 2-6-5 can move within the positioning piston guide hole 2-6-2-1. The diameter of the positioning piston guide hole 2-6-2-1 is slightly larger than the diameter of the positioning piston 2-6-5. The positioning piston guide hole 2-6-2-1 can restrict the tilting of the positioning piston 2-6-5, so that the positioning piston 2-6-5 can only move back and forth and cannot tilt.

[0089] like Figure 23 As shown, the positioning piston 2-6-5 includes a locking positioning ramp 2-6-5-1, a positioning piston guide cylinder 2-6-5-2, a positioning pin mounting boss 2-6-5-3, a positioning pin mounting through hole 2-6-5-4, and a threaded hole 2-6-5-5. The locking positioning ramp 2-6-5-1 is at the front, and its inclination angle is the same as that of the positioning ring locking ramp 2-2-3-1 in the passive end positioning ring 2-2-3. The locking positioning ramp 2-6-5-1 serves both as a guide and, through its tight fit with the positioning ring locking ramp 2-2-3-1, restricts the wobbling of the passive end positioning ring 2-2-3, thus preventing the entire passive shaft rotation assembly 2-3 from wobbling during high-speed operation. The locating pin mounting boss 2-6-5-3 is located at the tail of the locating piston 2-6-5. The locating pin mounting through hole 2-6-5-4 and the threaded hole 2-6-5-5 are located on the locating pin mounting boss 2-6-5-3.

[0090] like Figure 24 As shown, the push rod 2-6-3 includes a push rod reset surface 2-6-3-1, a push rod locking boss 2-6-3-2, a push rod front limiting surface 2-6-3-3, a push rod rear limiting surface 2-6-3-4, and a push rod side limiting surface 2-6-3-5. The push roller 2-6-4 can rotate freely; in this embodiment, the push roller 2-6-4 is a bearing. The push rod locking boss 2-6-3-2 is higher than the push rod reset surface 2-6-3-1, and the push rod reset surface 2-6-3-1 and the push rod locking boss 2-6-3-2 have an arc transition, allowing the push roller 2-6-4 to smoothly move from the push rod reset surface 2-6-3-1 to the push rod locking boss 2-6-3-2. Figures 21-22As shown, the push rod 2-6-3 is installed in the push rod limiting block 2-6-2. The front limiting surface 2-6-3-3, the rear limiting surface 2-6-3-4, and the side limiting surface 2-6-3-5 of the push rod are all smooth vertical surfaces. The front limiting surface 2-6-3-3 and the side limiting surface 2-6-3-5 of the push rod fit perfectly into the push rod limiting groove 2-6-2-3. The rear limiting surface 2-6-3-4 of the push rod is in close contact with the side wall of the push rod cover plate 2-6-1, thereby limiting the front-to-back and lateral displacement of the push rod 2-6-3, so that the push rod 2-6-3 can only move up and down. The bottom of the push rod 2-6-3 is connected to the extended end of the locking and positioning push cylinder 2-6-9.

[0091] like Figures 21-22 As shown, when assembling the passive end locking assembly 2-6, the positioning piston 2-6-5 is installed into the positioning piston guide hole 2-6-2-1 of the push rod limiting block 2-6-2. The positioning pin 2-6-6 passes through the positioning pin guide hole 2-6-2-2 in the push rod limiting block 2-6-5. The positioning pin 2-6-6 then passes through the positioning pin mounting through hole 2-6-5-4 and the push roller 2-6-4. Then, the positioning pin locking set screw 2-6-10 is used to fix it on the positioning piston 2-6-5. The tension spring fixing screw 2-6-8 is a stepped screw. The locking positioning tension spring 2-6-7 is sleeved on the tension spring fixing screw 2-6-8 and then installed on the end face of the positioning pin 2-6-6. Subsequently, the push rod 2-6-3 is installed into the push rod limiting groove 2-6-2-3, and the push roller 2-6-4 contacts the push rod reset surface 2-6-3-1. The push rod cover plate 2-6-1 is then closed, and the other end of the locking positioning tension spring 2-6-7 is installed onto the push rod cover plate 2-6-1 using a tension spring fixing screw 2-6-8. At this time, the locking positioning tension spring 2-6-7 is in a stretched state. The push rod 2-6-3 can move up and down as the locking positioning push cylinder 2-6-9 extends and resets. Figures 21-22 As shown, the positioning piston 2-6-5 is in the retracted state at this time, which is also the non-locking positioning state.

[0092] like Figures 25-26As shown in the diagram, the push rod limiting block 2-6-2 is hidden. When the locking and positioning push cylinder 2-6-9 extends, it is in the locking and positioning state. Due to the restriction of the push rod cover plate 2-6-1 and the push rod limiting block 2-6-2, the push rod 2-6-3 can only move upward. Subsequently, the push roller 2-6-4 moves from the push rod reset surface 2-6-3-1 to the push rod locking boss 2-6-3-2, driving the push roller 2-6-4 and the positioning piston 2-6-5 to move. Due to the restriction of the positioning piston guide hole 2-6-2-1 in the push rod limiting block 2-6-2, the positioning piston 2-6-5 can only move forward and cannot wobble. At this time, the locking and positioning tension spring 2-6-7 is further stretched. After the positioning piston 2-6-5 moves forward, it is firmly attached to the passive end positioning ring 2-2-3. When the locking and positioning push cylinder 2-6-9 retracts, the push rod 2-6-3 moves downward. Under the action of the locking and positioning tension spring 2-6-7, the roller 2-6-4 and the positioning piston 2-6-5 move and reset together, and the positioning piston 2-6-5 disengages from the passive end positioning ring 2-2-3.

[0093] like Figure 27 As shown, the take-up support component 3 includes a support base plate 3-1, support feet 3-2, an active end support profile 3-3, a take-up guide rail slider assembly 3-4, and an active end lower positioning block 3-5. The support base plate 3-1 is supported and its height is adjusted by the support feet 3-2. The active end support profile 3-3 is firmly fixed to the support base plate 3-1. The take-up guide rail slider assembly 3-4 is installed on the active end support profile 3-3, and the active end lower positioning block 3-5 is installed on the side of the active end support profile 3-3.

[0094] like Figure 28 As shown, one side of the lower positioning block 3-5 at the active end has an inclined surface with a certain angle θ to the vertical direction, which is consistent with the angle θ of the upper positioning slider 1-9 at the active end. The active end slide 1-2 of the active end component 1 is mounted on the take-up guide slider assembly 3-4 and can move freely on the guide rail. When the active end component 1 clamps the optical fiber reel 4, the active end positioning cylinder 1-8 extends, and the inclined surface of the upper positioning slider 1-9 at the active end just fits against the inclined surface of the lower positioning block 3-5 at the active end. At this time, the active end positioning cylinder 1-8 has not yet reached its maximum extension, so that when winding the optical fiber, the active end component 1 will not move backward due to insufficient clamping force of the reel clamping cylinder 1-7.

[0095] like Figures 29-30As shown, the fiber optic reel 4 includes a main take-up groove 4-1, an auxiliary take-up groove 4-2, a figure-eight notch 4-3, a main flange 4-4, an auxiliary flange 4-5, a reel anti-rotation groove 4-6, and a reel shaft hole 4-7. The fiber optic reel 4 is symmetrical on both sides. The auxiliary take-up groove 4-2 is located on the outside of the fiber optic reel 4, and the main take-up groove 4-1 is located in the middle of the fiber optic reel 4, used for winding the fiber. The main flange 4-4 is located between the main take-up groove 4-1 and the auxiliary take-up groove 4-2, and the figure-eight notch 4-3 is located on the main flange 4-4. The reel anti-rotation groove 4-6 is symmetrical about the reel shaft hole 4-7, and there are reel anti-rotation grooves 4-7 on both sides. The reel shaft hole 4-7 is located at the center of the fiber optic reel 4, and its diameter is slightly larger than the diameter of the active shaft 1-4 and the passive shaft 2-3-1 where the fiber optic reel is positioned.

[0096] An automatic tray changing method using an automatic tray changing system of an optical fiber screening machine as described above includes the following steps: Step 1: When the fiber optic tray 4 is initially placed, the tray clamping cylinder 1-7 in the active end component 1 is in the open state, the active end positioning cylinder 1-8 is in the retracted state, the passive end anti-rotation release cylinder 2-7 is in the retracted state, and the locking and positioning push cylinder 2-6-9 is in the extended state. Figure 31 As shown; Step 2: Rotate the passive shaft 2-3-1 in the two passive shaft rotating assemblies 2-3 so that the positioning groove 2-3-1-4 of the passive shaft rotating assembly on the passive shaft 2-3-1 is aligned with the outer edge of the semi-circular hole of the passive end friction block 2-5-2. At this time, one of the take-up clamps 2-4-2 is directly above. Insert the fiber optic reel 4 into the outer passive shaft 2-3-1 in the passive end component 2. After passing through the expansion block 2-3-2-1, the fiber optic reel 4 is further inserted. The two anti-rotation grooves 4-6 on the side of the fiber optic reel 4 are inserted into the two take-up end anti-rotation blocks 2-4-3. Finally, the auxiliary flange 4-5 of the fiber optic reel contacts the passive end clamping disc 2-4-1. Step 3: The locking and positioning push cylinder 2-6-9 in the passive end locking assembly 2-6 retracts, and the active end component 1 rotates the active shaft 1-4 autonomously, with the two active end anti-rotation blocks 1-5 in a vertical state; the passive end changing disc drive 2-2-1 motor works, driving the passive end rotating arm 2-2-4 to rotate, rotating the outer passive shaft rotating assembly 2-3 to the inner side until it is concentric with the active shaft 1-4; since two symmetrical take-up clamps 2-4-2 are installed on the passive end clamp assembly 2-4, there is another take-up clamp 2-4-2 at the top; Step 4: The passive end anti-rotation release cylinder 2-7 extends and contacts the passive end anti-rotation block mounting plate 2-5-1, and drives the passive end friction block 2-5-2 to disengage from the passive shaft friction circle 2-3-1-3. During equipment operation, the passive end anti-rotation release cylinder is always in the extended state. The locking and positioning push cylinder 2-6-9 in the passive end locking assembly 2-6 extends, and the positioning piston 2-6-6 contacts the passive end positioning ring 2-4-3, so that the passive end changing plate rotation assembly 2-2 is firmly fixed. The plate clamping cylinder 1-7 retracts, and the active end component 1 advances along the take-up guide slider assembly 3-4 until it clamps the optical fiber plate 4.

[0097] Step 5: The active end positioning cylinder 1-8 extends, and the inclined surface of the active end positioning upper slider 1-9 just matches the inclined surface of the active end lower positioning block 3-5. Figure 32 As shown; Step 6: Using the automatic fiber threading and reeling system, thread the optical fiber into the take-up clamp 2-4-2, as shown. Figures 33-34 As shown, after the equipment is started, the fiber is first wound around the auxiliary take-up groove 4-2 in the fiber optic reel 4 several times, and then enters the main take-up groove 4-1 of the fiber optic reel through the figure-eight notch 4-3 of the main flange 4-4 of the fiber optic reel to take up the fiber. Step 7: During the process of winding the optical fiber with the optical fiber reel 4, an empty optical fiber reel 4 is placed on the outer passive shaft for backup. When the optical fiber reel 4 is full of optical fiber, the active clamp positioning sensor 1-6 detects the action so that when the machine stops, one of the take-up clamps 2-4-2 is facing upwards. Step 8: The active end positioning cylinder 1-8 retracts, the active end positioning upper slider 1-9 separates from the active end lower positioning block 3-5, the disk clamping cylinder 1-7 extends, the active end component 1 separates from the fiber optic disk 4, the passive end anti-rotation release cylinder 2-7 retracts, the passive end friction block 2-5-2 contacts the passive shaft friction circle 2-3-1-3, making the passive shaft 2-3-1 unable to rotate freely; the locking positioning push cylinder 2-6-9 in the passive end locking assembly 2-6 retracts, and the positioning piston 2-6-6 separates from the passive end positioning ring 2-4-3. Step 9: The passive end reel changer drive motor 2-2-1 operates, and the reel fully wound with optical fiber rotates to the outer side. The empty optical fiber reel is rotated to the inner working position. After automatic fiber threading is achieved by the automatic fiber threading system, the operation continues. The reel with the finished fiber winding is removed and replaced with an empty optical fiber reel, and so on.

[0098] In summary, this invention, through automatic positioning of the active-end components and automatic tray replacement of the passive-end tray-changing rotating assembly, enables automatic replacement of full and empty fiber trays, and achieves precise positioning of the fiber trays, thus improving tray replacement efficiency. Furthermore, it eliminates waiting time; combined with the automatic fiber threading system, it allows for continuous equipment operation and high efficiency. Moreover, the passive-end locking assembly and the positioning action of the upper and lower positioning blocks on the active end reduce vibration during high-speed operation, increasing the stability of fiber winding.

[0099] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0100] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An automatic tray changing system for an optical fiber screening machine, characterized in that: It includes an active end component (1), a passive end component (2) and a take-up support component (3). The active end component (1) and the passive end component (2) are arranged opposite to each other on the take-up support component (3). The active end component (1) or the passive end component (2) is slidably connected to the take-up support component (3). A push-pull locking mechanism is connected between the active end component (1) and the passive end component (2). The active end component (1) includes an active end base disposed on the take-up support component (3), an active shaft (1-4) disposed laterally on the active end base, and a main rotation drive source connected to the active shaft (1-4). The active shaft (1-4) is provided with an active end chuck (1-3). The passive end component (2) includes a passive end mounting base (2-1) disposed on the take-up support component (3) and a passive end changing plate rotating assembly (2-2) disposed on the passive end mounting base (2-1). Multiple passive shaft rotating assemblies (2-3) are distributed circumferentially on the passive end changing plate rotating assembly (2-2). A passive end anti-rotation assembly (2-5) is provided on one side of the passive shaft rotating assembly (2-3). The passive end changing plate rotating assembly (2-2) can drive the passive shaft rotating assembly (2-3) to rotate around a rotation center. The passive shaft rotating assembly (2-3) includes a passive shaft. Each passive shaft is provided with a passive end clamping plate assembly (2-4). The passive shaft of the passive shaft rotating assembly (2-3) rotated to the fiber threading position of the clamping plate is arranged opposite to the active shaft (1-4) on the same straight line. A passive end locking assembly (2-6) is provided on one side of the passive end changing plate rotating assembly (2-2). The passive end locking assembly (2-6) is used to lock the passive end changing plate rotating assembly (2-2) to prevent it from rotating. The passive end locking assembly (2-6) is located on the rear side of the passive end rotating assembly (2-2); The passive end locking assembly (2-6) includes a push rod cover plate (2-6-1), a push rod limiting block (2-6-2), a positioning piston (2-6-5), and a passive end locking push-pull mechanism; the push rod cover plate (2-6-1) is located on the push rod limiting block (2-6-2), and the push rod limiting block (2-6-2) has a positioning piston guide hole (2-6-2-1) along the passive shaft axis direction, and the positioning piston (2-6-5) is located in the positioning piston guide hole (2-6-2-1). The passive end locking push-pull mechanism is connected to the positioning piston (2-6-5); the passive end locking push-pull mechanism drives the positioning piston (2-6-5) to move back and forth along the positioning piston guide hole (2-6-2-1), so that one end of the positioning piston (2-6-5) extends out from the push rod limit block (2-6-2) and presses against the passive end changing plate rotating assembly (2-2) to form a lock, or causes one end of the positioning piston (2-6-5) to retract and disengage from the passive end changing plate rotating assembly (2-2) to release the lock; The passive-end locking push-pull mechanism includes a push rod (2-6-3), a push roller (2-6-4), a positioning pin (2-6-6), and a locking positioning push cylinder (2-6-9). The inner end of the positioning piston (2-6-5) is connected to the push roller (2-6-4) via the positioning pin (2-6-6). The push rod (2-6-3) is vertically arranged on one side of the push roller (2-6-4). The push rod (2-6-3) is connected to the locking positioning push cylinder (2-6-9). The side of the push rod (2-6-3) closest to the push roller (2-6-4) is aligned with the side of the locking positioning push cylinder (2-6-9). The extension and retraction direction of 6-9 is arranged with the push rod reset surface (2-6-3-1), the push rod locking boss (2-6-3-2), and the push rod front limit surface (2-6-3-3) in sequence. The height of the push rod reset surface (2-6-3-1), the push rod locking boss (2-6-3-2), and the push rod front limit surface (2-6-3-3) increases in sequence. The two ends of the positioning pin (2-6-6) pass through the two sides of the push rod limit block (2-6-2) and are connected to the push rod cover plate (2-6-1) and the two sides of the push rod limit block (2-6-2) through the locking positioning tension spring (2-6-7).

2. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: The take-up support component (3) is provided with a take-up guide slider assembly (3-4), and the active end base includes an active end slide (1-2) disposed on the take-up guide slider assembly (3-4), and the active shaft (1-4) is disposed on the active end slide (1-2); The push-pull locking mechanism includes a disc clamping cylinder (1-7) and a disc clamping cylinder fixing block (2-8). The disc clamping cylinder (1-7) is mounted on the active end base. The movable end of the disc clamping cylinder (1-7) is connected to the passive end mounting base (2-1) through the disc clamping cylinder fixing block (2-8). The extension and retraction of the disc clamping cylinder (1-7) can drive the active end slide (1-2) to move back and forth along the take-up guide slider assembly (3-4). The push-pull locking mechanism also includes an active end positioning cylinder (1-8) and an active end positioning upper slider (1-9). The active end positioning cylinder (1-8) is set on the active end slide (1-2), and the active end positioning upper slider (1-9) is connected to the movable end of the active end positioning cylinder (1-8). The take-up support component (3) is fixed with an active end lower positioning block (3-5). When the active end slide (1-2) moves along the take-up guide rail slider assembly (3-4) toward the passive end mounting base (2-1) to form a clamping of the optical fiber tray, the active end positioning cylinder (1-8) drives the active end positioning upper slider (1-9) to extend, so that the active end positioning upper slider (1-9) is tightly fitted with the passive end mounting base (2-1) to lock the position of the active end slide (1-2).

3. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: The main rotation drive source includes an active end drive motor (1-1), and the output end of the active end drive motor (1-1) is connected to the active shaft (1-4); An active end slide (1-2) is provided with an active end clamping plate positioning sensor (1-6); an active end clamping plate (1-3) is provided with an active end clamping plate positioning hole (1-3-1); the active end clamping plate positioning sensor (1-6) is close to the active end clamping plate (1-3) and can detect the active end clamping plate positioning hole (1-3-1) on the active end clamping plate. An active end anti-rotation block (1-5) is provided on the active end chuck (1-3), and / or a passive end anti-rotation block (2-4-3) is provided on the passive end chuck.

4. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: The passive end clamping plate assembly (2-4) includes a passive end clamping plate (2-4-1), which is sleeved on the passive shaft. The passive end clamping plate (2-4-1) is provided with a take-up clamp (2-4-2), and a bevel is provided at the edge of the passive end clamping plate where the take-up clamp is installed.

5. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: The passive end disc changing rotation assembly (2-2) includes a passive end disc changing drive motor (2-2-1), a reducer (2-2-2), and a passive end rotating arm (2-2-4). The passive end disc changing drive motor (2-2-1) and the reducer (2-2-2) are mounted on the passive end mounting base (2-1). The output end of the reducer (2-2-2) is connected to the middle of the passive end rotating arm (2-2-4). There are two passive shaft rotating assemblies (2-3), which are respectively located at both ends of the passive end rotating arm (2-2-4). Two mounting holes are provided at both ends of the passive end rotating arm (2-2-4). The passive shafts of the two passive shaft rotating assemblies (2-3) are respectively located in the two mounting holes, and the passive shafts can rotate within the mounting holes.

6. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: A passive anti-rotation release cylinder (2-7) is provided on one side of the fiber threading position of the clamp. The passive-end anti-rotation assembly (2-5) includes a passive-end anti-rotation block mounting plate (2-5-1), a passive-end friction block (2-5-2), a guide rail assembly (2-5-3), a passive-end anti-rotation assembly compression spring (2-5-4), a guide screw (2-5-5), and a guide screw positioning block (2-5-6). The guide rail assembly (2-5-3) is mounted on the passive-end changing disc rotation assembly, and the passive-end anti-rotation block mounting plate (2-5-1) is mounted on the guide rail assembly (2-5-3). The slider can slide along the guide rail assembly (2-5-3). The passive end anti-rotation block mounting plate (2-5-1) has a through hole through which the passive shaft passes. There is a gap between the passive shaft and the inner ring of the through hole of the passive end anti-rotation block mounting plate (2-5-1). The passive end friction block (2-5-2) is mounted on the passive end anti-rotation block mounting plate (2-5-1). The passive end friction block (2-5-2) has an opening groove at the end near the passive shaft. The guide screw positioning block (2) -5-6) is fixed on the passive end rotating assembly of the changing plate. One end of the guide screw (2-5-5) passes through the guide screw positioning block (2-5-6) and the passive end anti-rotation assembly compression spring (2-5-4) in sequence and is connected and fixed to the passive end anti-rotation block mounting plate (2-5-1). The passive end anti-rotation assembly compression spring (2-5-4) is sleeved on the guide screw (2-5-5). One end of the passive end anti-rotation assembly compression spring (2-5-4) contacts the passive end anti-rotation block mounting plate (2-5-1). -5-1), the other end contacts the guide screw positioning block (2-5-6), and the passive end anti-rotation component compression spring (2-5-4) is in a compressed state. Through the spring force of the passive end anti-rotation component compression spring (2-5-4), the passive end anti-rotation block mounting plate (2-5-1) moves closer to the passive shaft rotation component, driving the passive end friction block (2-5-2) to press the friction circle (2-3-1-3) of the passive shaft, so that the passive shaft rotation component (2-3) itself cannot rotate; The passive end anti-rotation release cylinder (2-7) is located on the outside of the passive end anti-rotation block mounting plate (2-5-1) at the fiber threading position of the clamp. When the passive end anti-rotation release cylinder (2-7) extends and acts on the passive end anti-rotation block mounting plate (2-5-1) at the fiber threading position of the clamp, the passive end anti-rotation block mounting plate (2-5-1) and the passive end friction block (2-5-2) move back against the spring force, and the passive end friction block (2-5-2) does not contact the passive shaft. When the passive end anti-rotation release cylinder (2-7) retracts and disengages from the passive end anti-rotation block mounting plate (2-5-1) at the fiber threading position of the clamp, the passive end anti-rotation block mounting plate (2-5-1) and the passive end friction block (2-5-2) are in close contact with the passive shaft under the action of the spring force, preventing the passive shaft at the fiber threading position of the clamp from rotating.

7. The automatic tray changing system of the fiber optic screening machine as described in claim 1, characterized in that: The passive shaft rotation assembly (2-3) also includes a disc clamping assembly (2-3-2) and a passive base (2-3-3). The passive shaft (2-3-1) is mounted in the passive base (2-3-3) via bearings. The passive shaft (2-3-1) is provided with a passive shaft friction circle (2-3-1-3) and a disc clamping assembly positioning hole (2-3-1-2) in sequence along the axial direction. The disc clamping assembly (2-3-2) is installed in the disc clamping assembly positioning hole (2-3-1-2) of the passive shaft (2-3-1). The passive shaft friction circle (2-3-1-3) is provided with a passive shaft rotation assembly positioning groove (2-3-1-4). The passive shaft friction circle (2-3-1-3) is used to contact the passive end anti-rotation assembly (2-5), and the passive shaft rotation assembly positioning groove (2-3-1-4) is used to contact the passive end anti-rotation assembly (2-5) for better positioning.

8. An automatic tray changing method for an automatic tray changing system of an optical fiber screening machine according to any one of claims 1-7, characterized in that: Includes the following steps: Step 1: When initially placing the fiber optic tray, the push-pull locking mechanism is in the open state, the active end component (1) and the passive end component (2) are in a far apart position, the passive end locking component (2-6) locks the passive end tray changing rotation component (2-2) to prevent the passive end tray changing rotation component (2-2) from rotating, and the passive end anti-rotation component (2-5) locks and jams the passive shaft to prevent the passive shaft from rotating; Step 2: Install the fiber optic tray onto the passive shaft rotation assembly (2-3) in the installation position. Release the passive end locking assembly (2-6) from the passive end tray changing rotation assembly (2-2). Rotate the fiber optic tray in the installation position to the fiber insertion position using the passive end tray changing rotation assembly (2-2). Step 3: The passive end locking assembly (2-6) locks the passive end rotating assembly (2-2) again. The push-pull locking mechanism drives the active end component (1) and the passive end component (2) to move closer together, so that the active shaft is inserted into the center hole of the fiber optic tray in the fiber threading position from the other side. The active end clamping plate (1-3) on the active shaft and the passive end clamping plate (2-4-1) on the passive shaft clamp the fiber optic tray from both sides. The active end component (1) and the passive end component (2) are in the closed position, and the position between the active end component (1) and the passive end component (2) is locked by the push-pull locking mechanism. Step 4: Insert the optical fiber into the optical fiber tray, unlock the passive anti-rotation component (2-5), and drive the active rotation drive source to rotate the active shaft, thereby rotating the optical fiber tray and winding the optical fiber onto the optical fiber tray. Install an empty fiber optic reel on the passive shaft rotation assembly (2-3) in the installation position, or replace a full fiber optic reel with an empty fiber optic reel. Step 5: After the fiber is fully wound onto the fiber optic tray, the active shaft stops rotating. The passive end locking assembly (2-6) releases the passive end tray changing rotation assembly (2-2), and the passive end anti-rotation assembly (2-5) locks the passive shaft. The passive end tray changing rotation assembly (2-2) drives the fully wound fiber optic tray to rotate from the clamping position to the installation position. At the same time, the empty fiber optic tray installed in the installation position is rotated to the clamping position. Repeat steps 3-5 until the fiber optic tray loading task is completed.

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